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KnockoutJS to ES2015/ES6

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TODO: use the new Proxy for ko.observable
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djmaze 2020-10-04 21:58:13 +02:00
parent a0f8ac0dad
commit 72ed2b08b2
56 changed files with 941 additions and 1873 deletions
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18
README.md
View file

@ -106,22 +106,22 @@ RainLoop 1.14 vs SnappyMail
|js/* |RainLoop |Snappy | |js/* |RainLoop |Snappy |
|----------- |--------: |--------: | |----------- |--------: |--------: |
|admin.js |2.130.942 | 776.615 | |admin.js |2.130.942 | 774.301 |
|app.js |4.184.455 |2.430.639 | |app.js |4.184.455 |2.424.578 |
|boot.js | 671.522 | 5.285 | |boot.js | 671.522 | 5.285 |
|libs.js | 647.614 | 255.041 | |libs.js | 647.614 | 249.953 |
|polyfills.js | 325.834 | 0 | |polyfills.js | 325.834 | 0 |
|TOTAL |7.960.367 |3.467.580 | |TOTAL |7.960.367 |3.454.117 |
|js/min/* |RainLoop |Snappy |Rain gzip |gzip |brotli | |js/min/* |RainLoop |Snappy |Rain gzip |gzip |brotli |
|--------------- |--------: |--------: |--------: |--------: |--------: | |--------------- |--------: |--------: |--------: |--------: |--------: |
|admin.min.js | 252.147 | 104.046 | 73.657 | 27.739 | 24.058 | |admin.min.js | 252.147 | 103.761 | 73.657 | 27.632 | 24.004 |
|app.min.js | 511.202 | 329.887 |140.462 | 84.844 | 68.843 | |app.min.js | 511.202 | 328.005 |140.462 | 84.451 | 68.571 |
|boot.min.js | 66.007 | 2.935 | 22.567 | 1.510 | 1.285 | |boot.min.js | 66.007 | 2.935 | 22.567 | 1.510 | 1.285 |
|libs.min.js | 572.545 | 149.712 |176.720 | 52.703 | 46.853 | |libs.min.js | 572.545 | 144.650 |176.720 | 51.765 | 46.049 |
|polyfills.min.js | 32.452 | 0 | 11.312 | 0 | 0 | |polyfills.min.js | 32.452 | 0 | 11.312 | 0 | 0 |
|TOTAL |1.434.353 | 586.580 |424.718 |166.796 |141.039 | |TOTAL |1.434.353 | 579.351 |424.718 |165.358 |139.909 |
|TOTAL (no admin) |1.182.206 | 482.534 |351.061 |139.057 |116.981 | |TOTAL (no admin) |1.182.206 | 475.590 |351.061 |137.726 |115.905 |
For a user its around 60% smaller and faster than traditional RainLoop. For a user its around 60% smaller and faster than traditional RainLoop.

4
vendors/knockout/Gruntfile.js vendored
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@ -109,8 +109,8 @@ module.exports = function(grunt) {
function buildMin(output, done) { function buildMin(output, done) {
var cc = require('closure-compiler'); var cc = require('closure-compiler');
var options = { var options = {
// language_in:'ECMASCRIPT6', // BROKEN!! language_in:'ECMASCRIPT6', // BROKEN!!
// language_out:'ECMASCRIPT6', language_out:'ECMASCRIPT6',
compilation_level: 'ADVANCED_OPTIMIZATIONS', compilation_level: 'ADVANCED_OPTIMIZATIONS',
output_wrapper: '(function() {%output%})();' output_wrapper: '(function() {%output%})();'
}; };

7
vendors/knockout/README.md vendored
View file

@ -2,6 +2,13 @@
**Knockout** is a JavaScript [MVVM](http://en.wikipedia.org/wiki/Model_View_ViewModel) (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses *observers* to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of *declarative bindings* to enable productive development. **Knockout** is a JavaScript [MVVM](http://en.wikipedia.org/wiki/Model_View_ViewModel) (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses *observers* to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of *declarative bindings* to enable productive development.
## SnappyMail Modifications
Knockout has a high level of backward compatibility. We don't use it, so a lot of IE code is stripped.
npm closure-compiler is old and broken for ES2015/ES6, so we use the new google-closure-compiler.
## Getting started ## Getting started
[![Join the chat at https://gitter.im/knockout/knockout](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/knockout/knockout?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Join the chat at https://gitter.im/knockout/knockout](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/knockout/knockout?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)

12
vendors/knockout/build/fragments/source-references.js vendored
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@ -27,23 +27,23 @@ knockoutDebugCallback([
'src/components/customElements.js', 'src/components/customElements.js',
'src/components/componentBinding.js', 'src/components/componentBinding.js',
'src/binding/defaultBindings/attr.js', 'src/binding/defaultBindings/attr.js',
'src/binding/defaultBindings/checked.js', // 'src/binding/defaultBindings/checked.js',
'src/binding/defaultBindings/css.js', 'src/binding/defaultBindings/css.js',
'src/binding/defaultBindings/enableDisable.js', 'src/binding/defaultBindings/enableDisable.js',
'src/binding/defaultBindings/event.js', 'src/binding/defaultBindings/event.js',
'src/binding/defaultBindings/foreach.js', 'src/binding/defaultBindings/foreach.js',
'src/binding/defaultBindings/hasfocus.js', 'src/binding/defaultBindings/hasfocus.js',
'src/binding/defaultBindings/html.js', 'src/binding/defaultBindings/html.js',
'src/binding/defaultBindings/ifIfnotWith.js', // 'src/binding/defaultBindings/ifIfnotWith.js',
'src/binding/defaultBindings/let.js', // 'src/binding/defaultBindings/let.js',
'src/binding/defaultBindings/options.js', 'src/binding/defaultBindings/options.js',
'src/binding/defaultBindings/selectedOptions.js', // 'src/binding/defaultBindings/selectedOptions.js',
'src/binding/defaultBindings/style.js', 'src/binding/defaultBindings/style.js',
'src/binding/defaultBindings/submit.js', 'src/binding/defaultBindings/submit.js',
'src/binding/defaultBindings/text.js', 'src/binding/defaultBindings/text.js',
'src/binding/defaultBindings/textInput.js', 'src/binding/defaultBindings/textInput.js',
'src/binding/defaultBindings/uniqueName.js', // 'src/binding/defaultBindings/uniqueName.js',
'src/binding/defaultBindings/using.js', // 'src/binding/defaultBindings/using.js',
'src/binding/defaultBindings/value.js', 'src/binding/defaultBindings/value.js',
'src/binding/defaultBindings/visibleHidden.js', 'src/binding/defaultBindings/visibleHidden.js',
// click depends on event - The order matters for specs, which includes each file individually // click depends on event - The order matters for specs, which includes each file individually

1279
vendors/knockout/build/output/knockout-latest.debug.js vendored
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File diff suppressed because it is too large Load diff

214
vendors/knockout/build/output/knockout-latest.js vendored
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@ -4,114 +4,106 @@
* License: MIT (http://www.opensource.org/licenses/mit-license.php) * License: MIT (http://www.opensource.org/licenses/mit-license.php)
*/ */
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67
vendors/knockout/src/binding/bindingAttributeSyntax.js vendored Executable file → Normal file
View file

@ -1,4 +1,4 @@
(function () { (() => {
// Hide or don't minify context properties, see https://github.com/knockout/knockout/issues/2294 // Hide or don't minify context properties, see https://github.com/knockout/knockout/issues/2294
var contextSubscribable = Symbol('_subscribable'); var contextSubscribable = Symbol('_subscribable');
var contextAncestorBindingInfo = Symbol('_ancestorBindingInfo'); var contextAncestorBindingInfo = Symbol('_ancestorBindingInfo');
@ -19,9 +19,7 @@
}; };
// Use an overridable method for retrieving binding handlers so that plugins may support dynamically created handlers // Use an overridable method for retrieving binding handlers so that plugins may support dynamically created handlers
ko['getBindingHandler'] = function(bindingKey) { ko['getBindingHandler'] = bindingKey => ko.bindingHandlers[bindingKey];
return ko.bindingHandlers[bindingKey];
};
var inheritParentVm = {}; var inheritParentVm = {};
@ -93,7 +91,6 @@
shouldInheritData = dataItemOrAccessor === inheritParentVm, shouldInheritData = dataItemOrAccessor === inheritParentVm,
realDataItemOrAccessor = shouldInheritData ? undefined : dataItemOrAccessor, realDataItemOrAccessor = shouldInheritData ? undefined : dataItemOrAccessor,
isFunc = typeof(realDataItemOrAccessor) == "function" && !ko.isObservable(realDataItemOrAccessor), isFunc = typeof(realDataItemOrAccessor) == "function" && !ko.isObservable(realDataItemOrAccessor),
nodes,
subscribable, subscribable,
dataDependency = options && options['dataDependency']; dataDependency = options && options['dataDependency'];
@ -132,14 +129,14 @@
if (dataItemAlias && options && options['noChildContext']) { if (dataItemAlias && options && options['noChildContext']) {
var isFunc = typeof(dataItemOrAccessor) == "function" && !ko.isObservable(dataItemOrAccessor); var isFunc = typeof(dataItemOrAccessor) == "function" && !ko.isObservable(dataItemOrAccessor);
return new ko.bindingContext(inheritParentVm, this, null, function (self) { return new ko.bindingContext(inheritParentVm, this, null, self => {
if (extendCallback) if (extendCallback)
extendCallback(self); extendCallback(self);
self[dataItemAlias] = isFunc ? dataItemOrAccessor() : dataItemOrAccessor; self[dataItemAlias] = isFunc ? dataItemOrAccessor() : dataItemOrAccessor;
}, options); }, options);
} }
return new ko.bindingContext(dataItemOrAccessor, this, dataItemAlias, function (self, parentContext) { return new ko.bindingContext(dataItemOrAccessor, this, dataItemAlias, (self, parentContext) => {
// Extend the context hierarchy by setting the appropriate pointers // Extend the context hierarchy by setting the appropriate pointers
self['$parentContext'] = parentContext; self['$parentContext'] = parentContext;
self['$parent'] = parentContext['$data']; self['$parent'] = parentContext['$data'];
@ -154,9 +151,9 @@
// Similarly to "child" contexts, provide a function here to make sure that the correct values are set // Similarly to "child" contexts, provide a function here to make sure that the correct values are set
// when an observable view model is updated. // when an observable view model is updated.
ko.bindingContext.prototype['extend'] = function(properties, options) { ko.bindingContext.prototype['extend'] = function(properties, options) {
return new ko.bindingContext(inheritParentVm, this, null, function(self, parentContext) { return new ko.bindingContext(inheritParentVm, this, null, self =>
ko.utils.extend(self, typeof(properties) == "function" ? properties(self) : properties); ko.utils.extend(self, typeof(properties) == "function" ? properties(self) : properties)
}, options); , options);
}; };
var boundElementDomDataKey = ko.utils.domData.nextKey(); var boundElementDomDataKey = ko.utils.domData.nextKey();
@ -209,7 +206,7 @@
childrenComplete: "childrenComplete", childrenComplete: "childrenComplete",
descendantsComplete : "descendantsComplete", descendantsComplete : "descendantsComplete",
subscribe: function (node, event, callback, context, options) { subscribe: (node, event, callback, context, options) => {
var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {}); var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {});
if (!bindingInfo.eventSubscribable) { if (!bindingInfo.eventSubscribable) {
bindingInfo.eventSubscribable = new ko.subscribable; bindingInfo.eventSubscribable = new ko.subscribable;
@ -220,7 +217,7 @@
return bindingInfo.eventSubscribable.subscribe(callback, context, event); return bindingInfo.eventSubscribable.subscribe(callback, context, event);
}, },
notify: function (node, event) { notify: (node, event) => {
var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey); var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey);
if (bindingInfo) { if (bindingInfo) {
bindingInfo.notifiedEvents[event] = true; bindingInfo.notifiedEvents[event] = true;
@ -239,7 +236,7 @@
} }
}, },
startPossiblyAsyncContentBinding: function (node, bindingContext) { startPossiblyAsyncContentBinding: (node, bindingContext) => {
var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {}); var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {});
if (!bindingInfo.asyncContext) { if (!bindingInfo.asyncContext) {
@ -251,7 +248,7 @@
return bindingContext; return bindingContext;
} }
return bindingContext['extend'](function (ctx) { return bindingContext['extend'](ctx => {
ctx[contextAncestorBindingInfo] = bindingInfo; ctx[contextAncestorBindingInfo] = bindingInfo;
}); });
} }
@ -439,28 +436,19 @@
// context update), just return the value accessor from the binding. Otherwise, return a function that always gets // context update), just return the value accessor from the binding. Otherwise, return a function that always gets
// the latest binding value and registers a dependency on the binding updater. // the latest binding value and registers a dependency on the binding updater.
var getValueAccessor = bindingsUpdater var getValueAccessor = bindingsUpdater
? function(bindingKey) { ? bindingKey => () => evaluateValueAccessor(bindingsUpdater()[bindingKey])
return function() { : bindingKey => bindings[bindingKey];
return evaluateValueAccessor(bindingsUpdater()[bindingKey]);
};
} : function(bindingKey) {
return bindings[bindingKey];
};
// Use of allBindings as a function is maintained for backwards compatibility, but its use is deprecated // Use of allBindings as a function is maintained for backwards compatibility, but its use is deprecated
function allBindings() { function allBindings() {
return ko.utils.objectMap(bindingsUpdater ? bindingsUpdater() : bindings, evaluateValueAccessor); return ko.utils.objectMap(bindingsUpdater ? bindingsUpdater() : bindings, evaluateValueAccessor);
} }
// The following is the 3.x allBindings API // The following is the 3.x allBindings API
allBindings['get'] = function(key) { allBindings['get'] = key => bindings[key] && evaluateValueAccessor(getValueAccessor(key));
return bindings[key] && evaluateValueAccessor(getValueAccessor(key)); allBindings['has'] = key => key in bindings;
};
allBindings['has'] = function(key) {
return key in bindings;
};
if (ko.bindingEvent.childrenComplete in bindings) { if (ko.bindingEvent.childrenComplete in bindings) {
ko.bindingEvent.subscribe(node, ko.bindingEvent.childrenComplete, function () { ko.bindingEvent.subscribe(node, ko.bindingEvent.childrenComplete, () => {
var callback = evaluateValueAccessor(bindings[ko.bindingEvent.childrenComplete]); var callback = evaluateValueAccessor(bindings[ko.bindingEvent.childrenComplete]);
if (callback) { if (callback) {
var nodes = ko.virtualElements.childNodes(node); var nodes = ko.virtualElements.childNodes(node);
@ -499,7 +487,7 @@
try { try {
// Run init, ignoring any dependencies // Run init, ignoring any dependencies
if (typeof handlerInitFn == "function") { if (typeof handlerInitFn == "function") {
ko.dependencyDetection.ignore(function() { ko.dependencyDetection.ignore(() => {
var initResult = handlerInitFn(node, getValueAccessor(bindingKey), allBindings, contextToExtend['$data'], contextToExtend); var initResult = handlerInitFn(node, getValueAccessor(bindingKey), allBindings, contextToExtend['$data'], contextToExtend);
// If this binding handler claims to control descendant bindings, make a note of this // If this binding handler claims to control descendant bindings, make a note of this
@ -514,9 +502,7 @@
// Run update in its own computed wrapper // Run update in its own computed wrapper
if (typeof handlerUpdateFn == "function") { if (typeof handlerUpdateFn == "function") {
ko.dependentObservable( ko.dependentObservable(
function() { () => handlerUpdateFn(node, getValueAccessor(bindingKey), allBindings, contextToExtend['$data'], contextToExtend),
handlerUpdateFn(node, getValueAccessor(bindingKey), allBindings, contextToExtend['$data'], contextToExtend);
},
null, null,
{ disposeWhenNodeIsRemoved: node } { disposeWhenNodeIsRemoved: node }
); );
@ -533,9 +519,9 @@
'shouldBindDescendants': shouldBindDescendants, 'shouldBindDescendants': shouldBindDescendants,
'bindingContextForDescendants': shouldBindDescendants && contextToExtend 'bindingContextForDescendants': shouldBindDescendants && contextToExtend
}; };
}; }
ko.storedBindingContextForNode = function (node) { ko.storedBindingContextForNode = node => {
var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey); var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey);
return bindingInfo && bindingInfo.context; return bindingInfo && bindingInfo.context;
} }
@ -546,16 +532,15 @@
: new ko.bindingContext(viewModelOrBindingContext, undefined, undefined, extendContextCallback); : new ko.bindingContext(viewModelOrBindingContext, undefined, undefined, extendContextCallback);
} }
ko.applyBindingAccessorsToNode = function (node, bindings, viewModelOrBindingContext) { ko.applyBindingAccessorsToNode = (node, bindings, viewModelOrBindingContext) =>
return applyBindingsToNodeInternal(node, bindings, getBindingContext(viewModelOrBindingContext)); applyBindingsToNodeInternal(node, bindings, getBindingContext(viewModelOrBindingContext));
};
ko.applyBindingsToNode = function (node, bindings, viewModelOrBindingContext) { ko.applyBindingsToNode = (node, bindings, viewModelOrBindingContext) => {
var context = getBindingContext(viewModelOrBindingContext); var context = getBindingContext(viewModelOrBindingContext);
return ko.applyBindingAccessorsToNode(node, makeBindingAccessors(bindings, context, node), context); return ko.applyBindingAccessorsToNode(node, makeBindingAccessors(bindings, context, node), context);
}; };
ko.applyBindingsToDescendants = function(viewModelOrBindingContext, rootNode) { ko.applyBindingsToDescendants = (viewModelOrBindingContext, rootNode) => {
if (rootNode.nodeType === 1 || rootNode.nodeType === 8) if (rootNode.nodeType === 1 || rootNode.nodeType === 8)
applyBindingsToDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode); applyBindingsToDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode);
}; };
@ -574,13 +559,13 @@
}; };
// Retrieving binding context from arbitrary nodes // Retrieving binding context from arbitrary nodes
ko.contextFor = function(node) { ko.contextFor = node => {
// We can only do something meaningful for elements and comment nodes (in particular, not text nodes, as IE can't store domdata for them) // We can only do something meaningful for elements and comment nodes (in particular, not text nodes, as IE can't store domdata for them)
if (node && (node.nodeType === 1 || node.nodeType === 8)) { if (node && (node.nodeType === 1 || node.nodeType === 8)) {
return ko.storedBindingContextForNode(node); return ko.storedBindingContextForNode(node);
} }
}; };
ko.dataFor = function(node) { ko.dataFor = node => {
var context = ko.contextFor(node); var context = ko.contextFor(node);
return context ? context['$data'] : undefined; return context ? context['$data'] : undefined;
}; };

6
vendors/knockout/src/binding/bindingProvider.js vendored
View file

@ -6,7 +6,7 @@
}; };
ko.utils.extend(ko.bindingProvider.prototype, { ko.utils.extend(ko.bindingProvider.prototype, {
'nodeHasBindings': function(node) { 'nodeHasBindings': node => {
switch (node.nodeType) { switch (node.nodeType) {
case 1: // Element case 1: // Element
return node.getAttribute(defaultBindingAttributeName) != null return node.getAttribute(defaultBindingAttributeName) != null
@ -31,12 +31,12 @@
// The following function is only used internally by this default provider. // The following function is only used internally by this default provider.
// It's not part of the interface definition for a general binding provider. // It's not part of the interface definition for a general binding provider.
'getBindingsString': function(node, bindingContext) { 'getBindingsString': (node, bindingContext) => {
switch (node.nodeType) { switch (node.nodeType) {
case 1: return node.getAttribute(defaultBindingAttributeName); // Element case 1: return node.getAttribute(defaultBindingAttributeName); // Element
case 8: return ko.virtualElements.virtualNodeBindingValue(node); // Comment node case 8: return ko.virtualElements.virtualNodeBindingValue(node); // Comment node
default: return null;
} }
return null;
}, },
// The following function is only used internally by this default provider. // The following function is only used internally by this default provider.

2
vendors/knockout/src/binding/defaultBindings/attr.js vendored
View file

@ -1,6 +1,6 @@
var attrHtmlToJavaScriptMap = { 'class': 'className', 'for': 'htmlFor' }; var attrHtmlToJavaScriptMap = { 'class': 'className', 'for': 'htmlFor' };
ko.bindingHandlers['attr'] = { ko.bindingHandlers['attr'] = {
'update': function(element, valueAccessor, allBindings) { 'update': (element, valueAccessor, allBindings) => {
var value = ko.utils.unwrapObservable(valueAccessor()) || {}; var value = ko.utils.unwrapObservable(valueAccessor()) || {};
ko.utils.objectForEach(value, function(attrName, attrValue) { ko.utils.objectForEach(value, function(attrName, attrValue) {
attrValue = ko.utils.unwrapObservable(attrValue); attrValue = ko.utils.unwrapObservable(attrValue);

137
vendors/knockout/src/binding/defaultBindings/checked.js vendored
View file

@ -1,137 +0,0 @@
(function() {
function addOrRemoveItem(array, value, included) {
var existingEntryIndex = ko.utils.arrayIndexOf(ko.utils.peekObservable(array), value);
if (existingEntryIndex < 0) {
if (included)
array.push(value);
} else {
if (!included)
array.splice(existingEntryIndex, 1);
}
}
ko.bindingHandlers['checked'] = {
'after': ['value', 'attr'],
'init': function (element, valueAccessor, allBindings) {
var checkedValue = ko.pureComputed(function() {
// Treat "value" like "checkedValue" when it is included with "checked" binding
if (allBindings['has']('checkedValue')) {
return ko.utils.unwrapObservable(allBindings.get('checkedValue'));
} else if (useElementValue) {
if (allBindings['has']('value')) {
return ko.utils.unwrapObservable(allBindings.get('value'));
} else {
return element.value;
}
}
});
function updateModel() {
// This updates the model value from the view value.
// It runs in response to DOM events (click) and changes in checkedValue.
var isChecked = element.checked,
elemValue = checkedValue();
// When we're first setting up this computed, don't change any model state.
if (ko.computedContext.isInitial()) {
return;
}
// We can ignore unchecked radio buttons, because some other radio
// button will be checked, and that one can take care of updating state.
// Also ignore value changes to an already unchecked checkbox.
if (!isChecked && (isRadio || ko.computedContext.getDependenciesCount())) {
return;
}
var modelValue = ko.dependencyDetection.ignore(valueAccessor);
if (valueIsArray) {
var writableValue = rawValueIsNonArrayObservable ? modelValue.peek() : modelValue,
saveOldValue = oldElemValue;
oldElemValue = elemValue;
if (saveOldValue !== elemValue) {
// When we're responding to the checkedValue changing, and the element is
// currently checked, replace the old elem value with the new elem value
// in the model array.
if (isChecked) {
addOrRemoveItem(writableValue, elemValue, true);
addOrRemoveItem(writableValue, saveOldValue, false);
}
} else {
// When we're responding to the user having checked/unchecked a checkbox,
// add/remove the element value to the model array.
addOrRemoveItem(writableValue, elemValue, isChecked);
}
if (rawValueIsNonArrayObservable && ko.isWriteableObservable(modelValue)) {
modelValue(writableValue);
}
} else {
if (isCheckbox) {
if (elemValue === undefined) {
elemValue = isChecked;
} else if (!isChecked) {
elemValue = undefined;
}
}
ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'checked', elemValue, true);
}
};
function updateView() {
// This updates the view value from the model value.
// It runs in response to changes in the bound (checked) value.
var modelValue = ko.utils.unwrapObservable(valueAccessor()),
elemValue = checkedValue();
if (valueIsArray) {
// When a checkbox is bound to an array, being checked represents its value being present in that array
element.checked = ko.utils.arrayIndexOf(modelValue, elemValue) >= 0;
oldElemValue = elemValue;
} else if (isCheckbox && elemValue === undefined) {
// When a checkbox is bound to any other value (not an array) and "checkedValue" is not defined,
// being checked represents the value being trueish
element.checked = !!modelValue;
} else {
// Otherwise, being checked means that the checkbox or radio button's value corresponds to the model value
element.checked = (checkedValue() === modelValue);
}
};
var isCheckbox = element.type == "checkbox",
isRadio = element.type == "radio";
// Only bind to check boxes and radio buttons
if (!isCheckbox && !isRadio) {
return;
}
var rawValue = valueAccessor(),
valueIsArray = isCheckbox && (ko.utils.unwrapObservable(rawValue) instanceof Array),
rawValueIsNonArrayObservable = !(valueIsArray && rawValue.push && rawValue.splice),
useElementValue = isRadio || valueIsArray,
oldElemValue = valueIsArray ? checkedValue() : undefined;
// Set up two computeds to update the binding:
// The first responds to changes in the checkedValue value and to element clicks
ko.computed(updateModel, null, { disposeWhenNodeIsRemoved: element });
ko.utils.registerEventHandler(element, "click", updateModel);
// The second responds to changes in the model value (the one associated with the checked binding)
ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
rawValue = undefined;
}
};
ko.expressionRewriting.twoWayBindings['checked'] = true;
ko.bindingHandlers['checkedValue'] = {
'update': function (element, valueAccessor) {
element.value = ko.utils.unwrapObservable(valueAccessor());
}
};
})();

6
vendors/knockout/src/binding/defaultBindings/css.js vendored
View file

@ -1,7 +1,7 @@
var classesWrittenByBindingKey = '__ko__cssValue'; var classesWrittenByBindingKey = '__ko__cssValue';
ko.bindingHandlers['class'] = { ko.bindingHandlers['class'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) => {
var value = ko.utils.stringTrim(ko.utils.unwrapObservable(valueAccessor())); var value = ko.utils.stringTrim(ko.utils.unwrapObservable(valueAccessor()));
ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false); ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false);
element[classesWrittenByBindingKey] = value; element[classesWrittenByBindingKey] = value;
@ -10,10 +10,10 @@ ko.bindingHandlers['class'] = {
}; };
ko.bindingHandlers['css'] = { ko.bindingHandlers['css'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) => {
var value = ko.utils.unwrapObservable(valueAccessor()); var value = ko.utils.unwrapObservable(valueAccessor());
if (value !== null && typeof value == "object") { if (value !== null && typeof value == "object") {
ko.utils.objectForEach(value, function(className, shouldHaveClass) { ko.utils.objectForEach(value, (className, shouldHaveClass) => {
shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass); shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass);
ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass); ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);
}); });

7
vendors/knockout/src/binding/defaultBindings/enableDisable.js vendored
View file

@ -1,5 +1,5 @@
ko.bindingHandlers['enable'] = { ko.bindingHandlers['enable'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) => {
var value = ko.utils.unwrapObservable(valueAccessor()); var value = ko.utils.unwrapObservable(valueAccessor());
if (value && element.disabled) if (value && element.disabled)
element.removeAttribute("disabled"); element.removeAttribute("disabled");
@ -9,7 +9,6 @@ ko.bindingHandlers['enable'] = {
}; };
ko.bindingHandlers['disable'] = { ko.bindingHandlers['disable'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) =>
ko.bindingHandlers['enable']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) }); ko.bindingHandlers['enable']['update'](element, () => !ko.utils.unwrapObservable(valueAccessor()))
}
}; };

6
vendors/knockout/src/binding/defaultBindings/event.js vendored
View file

@ -3,7 +3,7 @@
function makeEventHandlerShortcut(eventName) { function makeEventHandlerShortcut(eventName) {
ko.bindingHandlers[eventName] = { ko.bindingHandlers[eventName] = {
'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) { 'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
var newValueAccessor = function () { var newValueAccessor = () => {
var result = {}; var result = {};
result[eventName] = valueAccessor(); result[eventName] = valueAccessor();
return result; return result;
@ -14,9 +14,9 @@ function makeEventHandlerShortcut(eventName) {
} }
ko.bindingHandlers['event'] = { ko.bindingHandlers['event'] = {
'init' : function (element, valueAccessor, allBindings, viewModel, bindingContext) { 'init' : (element, valueAccessor, allBindings, viewModel, bindingContext) => {
var eventsToHandle = valueAccessor() || {}; var eventsToHandle = valueAccessor() || {};
ko.utils.objectForEach(eventsToHandle, function(eventName) { ko.utils.objectForEach(eventsToHandle, eventName => {
if (typeof eventName == "string") { if (typeof eventName == "string") {
ko.utils.registerEventHandler(element, eventName, function (event) { ko.utils.registerEventHandler(element, eventName, function (event) {
var handlerReturnValue; var handlerReturnValue;

15
vendors/knockout/src/binding/defaultBindings/foreach.js vendored
View file

@ -1,8 +1,8 @@
// "foreach: someExpression" is equivalent to "template: { foreach: someExpression }" // "foreach: someExpression" is equivalent to "template: { foreach: someExpression }"
// "foreach: { data: someExpression, afterAdd: myfn }" is equivalent to "template: { foreach: someExpression, afterAdd: myfn }" // "foreach: { data: someExpression, afterAdd: myfn }" is equivalent to "template: { foreach: someExpression, afterAdd: myfn }"
ko.bindingHandlers['foreach'] = { ko.bindingHandlers['foreach'] = {
makeTemplateValueAccessor: function(valueAccessor) { makeTemplateValueAccessor: valueAccessor => {
return function() { return () => {
var modelValue = valueAccessor(), var modelValue = valueAccessor(),
unwrappedValue = ko.utils.peekObservable(modelValue); // Unwrap without setting a dependency here unwrappedValue = ko.utils.peekObservable(modelValue); // Unwrap without setting a dependency here
@ -28,12 +28,11 @@ ko.bindingHandlers['foreach'] = {
}; };
}; };
}, },
'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) { 'init': (element, valueAccessor) =>
return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor)); ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor))
}, ,
'update': function(element, valueAccessor, allBindings, viewModel, bindingContext) { 'update': (element, valueAccessor, allBindings, viewModel, bindingContext) =>
return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindings, viewModel, bindingContext); ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindings, viewModel, bindingContext)
}
}; };
ko.expressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings ko.expressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings
ko.virtualElements.allowedBindings['foreach'] = true; ko.virtualElements.allowedBindings['foreach'] = true;

6
vendors/knockout/src/binding/defaultBindings/hasfocus.js vendored
View file

@ -1,8 +1,8 @@
var hasfocusUpdatingProperty = '__ko_hasfocusUpdating'; var hasfocusUpdatingProperty = '__ko_hasfocusUpdating';
var hasfocusLastValue = '__ko_hasfocusLastValue'; var hasfocusLastValue = '__ko_hasfocusLastValue';
ko.bindingHandlers['hasfocus'] = { ko.bindingHandlers['hasfocus'] = {
'init': function(element, valueAccessor, allBindings) { 'init': (element, valueAccessor, allBindings) => {
var handleElementFocusChange = function(isFocused) { var handleElementFocusChange = isFocused => {
// Where possible, ignore which event was raised and determine focus state using activeElement, // Where possible, ignore which event was raised and determine focus state using activeElement,
// as this avoids phantom focus/blur events raised when changing tabs in modern browsers. // as this avoids phantom focus/blur events raised when changing tabs in modern browsers.
// However, not all KO-targeted browsers (Firefox 2) support activeElement. For those browsers, // However, not all KO-targeted browsers (Firefox 2) support activeElement. For those browsers,
@ -29,7 +29,7 @@ ko.bindingHandlers['hasfocus'] = {
// Assume element is not focused (prevents "blur" being called initially) // Assume element is not focused (prevents "blur" being called initially)
element[hasfocusLastValue] = false; element[hasfocusLastValue] = false;
}, },
'update': function(element, valueAccessor) { 'update': (element, valueAccessor) => {
var value = !!ko.utils.unwrapObservable(valueAccessor()); var value = !!ko.utils.unwrapObservable(valueAccessor());
if (!element[hasfocusUpdatingProperty] && element[hasfocusLastValue] !== value) { if (!element[hasfocusUpdatingProperty] && element[hasfocusLastValue] !== value) {

7
vendors/knockout/src/binding/defaultBindings/html.js vendored
View file

@ -1,10 +1,9 @@
ko.bindingHandlers['html'] = { ko.bindingHandlers['html'] = {
'init': function() { 'init': () => {
// Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications) // Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications)
return { 'controlsDescendantBindings': true }; return { 'controlsDescendantBindings': true };
}, },
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) =>
// setHtml will unwrap the value if needed // setHtml will unwrap the value if needed
ko.utils.setHtml(element, valueAccessor()); ko.utils.setHtml(element, valueAccessor())
}
}; };

81
vendors/knockout/src/binding/defaultBindings/ifIfnotWith.js vendored
View file

@ -1,81 +0,0 @@
(function () {
// Makes a binding like with or if
function makeWithIfBinding(bindingKey, isWith, isNot) {
ko.bindingHandlers[bindingKey] = {
'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
var didDisplayOnLastUpdate, savedNodes, contextOptions = {}, completeOnRender, needAsyncContext, renderOnEveryChange;
if (isWith) {
var as = allBindings.get('as'), noChildContext = allBindings.get('noChildContext');
renderOnEveryChange = !(as && noChildContext);
contextOptions = { 'as': as, 'noChildContext': noChildContext, 'exportDependencies': renderOnEveryChange };
}
completeOnRender = allBindings.get("completeOn") == "render";
needAsyncContext = completeOnRender || allBindings['has'](ko.bindingEvent.descendantsComplete);
ko.computed(function() {
var value = ko.utils.unwrapObservable(valueAccessor()),
shouldDisplay = !isNot !== !value, // equivalent to isNot ? !value : !!value,
isInitial = !savedNodes,
childContext;
if (!renderOnEveryChange && shouldDisplay === didDisplayOnLastUpdate) {
return;
}
if (needAsyncContext) {
bindingContext = ko.bindingEvent.startPossiblyAsyncContentBinding(element, bindingContext);
}
if (shouldDisplay) {
if (!isWith || renderOnEveryChange) {
contextOptions['dataDependency'] = ko.computedContext.computed();
}
if (isWith) {
childContext = bindingContext['createChildContext'](typeof value == "function" ? value : valueAccessor, contextOptions);
} else if (ko.computedContext.getDependenciesCount()) {
childContext = bindingContext['extend'](null, contextOptions);
} else {
childContext = bindingContext;
}
}
// Save a copy of the inner nodes on the initial update, but only if we have dependencies.
if (isInitial && ko.computedContext.getDependenciesCount()) {
savedNodes = ko.utils.cloneNodes(ko.virtualElements.childNodes(element), true /* shouldCleanNodes */);
}
if (shouldDisplay) {
if (!isInitial) {
ko.virtualElements.setDomNodeChildren(element, ko.utils.cloneNodes(savedNodes));
}
ko.applyBindingsToDescendants(childContext, element);
} else {
ko.virtualElements.emptyNode(element);
if (!completeOnRender) {
ko.bindingEvent.notify(element, ko.bindingEvent.childrenComplete);
}
}
didDisplayOnLastUpdate = shouldDisplay;
}, null, { disposeWhenNodeIsRemoved: element });
return { 'controlsDescendantBindings': true };
}
};
ko.expressionRewriting.bindingRewriteValidators[bindingKey] = false; // Can't rewrite control flow bindings
ko.virtualElements.allowedBindings[bindingKey] = true;
}
// Construct the actual binding handlers
makeWithIfBinding('if');
makeWithIfBinding('ifnot', false /* isWith */, true /* isNot */);
makeWithIfBinding('with', true /* isWith */);
})();

10
vendors/knockout/src/binding/defaultBindings/let.js vendored
View file

@ -1,10 +0,0 @@
ko.bindingHandlers['let'] = {
'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
// Make a modified binding context, with extra properties, and apply it to descendant elements
var innerContext = bindingContext['extend'](valueAccessor);
ko.applyBindingsToDescendants(innerContext, element);
return { 'controlsDescendantBindings': true };
}
};
ko.virtualElements.allowedBindings['let'] = true;

19
vendors/knockout/src/binding/defaultBindings/options.js vendored
View file

@ -1,6 +1,6 @@
var captionPlaceholder = {}; var captionPlaceholder = {};
ko.bindingHandlers['options'] = { ko.bindingHandlers['options'] = {
'init': function(element) { 'init': element => {
if (ko.utils.tagNameLower(element) !== "select") if (ko.utils.tagNameLower(element) !== "select")
throw new Error("options binding applies only to SELECT elements"); throw new Error("options binding applies only to SELECT elements");
@ -12,9 +12,9 @@ ko.bindingHandlers['options'] = {
// Ensures that the binding processor doesn't try to bind the options // Ensures that the binding processor doesn't try to bind the options
return { 'controlsDescendantBindings': true }; return { 'controlsDescendantBindings': true };
}, },
'update': function (element, valueAccessor, allBindings) { 'update': (element, valueAccessor, allBindings) => {
function selectedOptions() { function selectedOptions() {
return ko.utils.arrayFilter(element.options, function (node) { return node.selected; }); return ko.utils.arrayFilter(element.options, node => node.selected);
} }
var selectWasPreviouslyEmpty = element.length == 0, var selectWasPreviouslyEmpty = element.length == 0,
@ -41,9 +41,9 @@ ko.bindingHandlers['options'] = {
unwrappedArray = [unwrappedArray]; unwrappedArray = [unwrappedArray];
// Filter out any entries marked as destroyed // Filter out any entries marked as destroyed
filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) { filteredArray = ko.utils.arrayFilter(unwrappedArray, item =>
return includeDestroyed || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']); includeDestroyed || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy'])
}); );
// If caption is included, add it to the array // If caption is included, add it to the array
if (allBindings['has']('optionsCaption')) { if (allBindings['has']('optionsCaption')) {
@ -95,10 +95,7 @@ ko.bindingHandlers['options'] = {
// By using a beforeRemove callback, we delay the removal until after new items are added. This fixes a selection // By using a beforeRemove callback, we delay the removal until after new items are added. This fixes a selection
// problem in IE<=8 and Firefox. See https://github.com/knockout/knockout/issues/1208 // problem in IE<=8 and Firefox. See https://github.com/knockout/knockout/issues/1208
arrayToDomNodeChildrenOptions['beforeRemove'] = arrayToDomNodeChildrenOptions['beforeRemove'] = option => element.removeChild(option);
function (option) {
element.removeChild(option);
};
function setSelectionCallback(arrayEntry, newOptions) { function setSelectionCallback(arrayEntry, newOptions) {
if (itemUpdate && valueAllowUnset) { if (itemUpdate && valueAllowUnset) {
@ -119,7 +116,7 @@ ko.bindingHandlers['options'] = {
var callback = setSelectionCallback; var callback = setSelectionCallback;
if (allBindings['has']('optionsAfterRender') && typeof allBindings.get('optionsAfterRender') == "function") { if (allBindings['has']('optionsAfterRender') && typeof allBindings.get('optionsAfterRender') == "function") {
callback = function(arrayEntry, newOptions) { callback = (arrayEntry, newOptions) => {
setSelectionCallback(arrayEntry, newOptions); setSelectionCallback(arrayEntry, newOptions);
ko.dependencyDetection.ignore(allBindings.get('optionsAfterRender'), null, [newOptions[0], arrayEntry !== captionPlaceholder ? arrayEntry : undefined]); ko.dependencyDetection.ignore(allBindings.get('optionsAfterRender'), null, [newOptions[0], arrayEntry !== captionPlaceholder ? arrayEntry : undefined]);
} }

41
vendors/knockout/src/binding/defaultBindings/selectedOptions.js vendored
View file

@ -1,41 +0,0 @@
ko.bindingHandlers['selectedOptions'] = {
'init': function (element, valueAccessor, allBindings) {
function updateFromView() {
var value = valueAccessor(), valueToWrite = [];
ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
if (node.selected)
valueToWrite.push(ko.selectExtensions.readValue(node));
});
ko.expressionRewriting.writeValueToProperty(value, allBindings, 'selectedOptions', valueToWrite);
}
function updateFromModel() {
var newValue = ko.utils.unwrapObservable(valueAccessor()),
previousScrollTop = element.scrollTop;
if (newValue && typeof newValue.length == "number") {
ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
node.selected = ko.utils.arrayIndexOf(newValue, ko.selectExtensions.readValue(node)) >= 0;
});
}
element.scrollTop = previousScrollTop;
}
if (ko.utils.tagNameLower(element) != "select") {
throw new Error("selectedOptions binding applies only to SELECT elements");
}
var updateFromModelComputed;
ko.bindingEvent.subscribe(element, ko.bindingEvent.childrenComplete, function () {
if (!updateFromModelComputed) {
ko.utils.registerEventHandler(element, "change", updateFromView);
updateFromModelComputed = ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });
} else {
updateFromView();
}
}, null, { 'notifyImmediately': true });
},
'update': function() {} // Keep for backwards compatibility with code that may have wrapped binding
};
ko.expressionRewriting.twoWayBindings['selectedOptions'] = true;

8
vendors/knockout/src/binding/defaultBindings/style.js vendored
View file

@ -1,7 +1,7 @@
ko.bindingHandlers['style'] = { ko.bindingHandlers['style'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) => {
var value = ko.utils.unwrapObservable(valueAccessor() || {}); var value = ko.utils.unwrapObservable(valueAccessor() || {});
ko.utils.objectForEach(value, function(styleName, styleValue) { ko.utils.objectForEach(value, (styleName, styleValue) => {
styleValue = ko.utils.unwrapObservable(styleValue); styleValue = ko.utils.unwrapObservable(styleValue);
if (styleValue === null || styleValue === undefined || styleValue === false) { if (styleValue === null || styleValue === undefined || styleValue === false) {
@ -13,9 +13,7 @@ ko.bindingHandlers['style'] = {
// Is styleName a custom CSS property? // Is styleName a custom CSS property?
element.style.setProperty(styleName, styleValue); element.style.setProperty(styleName, styleValue);
} else { } else {
styleName = styleName.replace(/-(\w)/g, function (all, letter) { styleName = styleName.replace(/-(\w)/g, (all, letter) => letter.toUpperCase());
return letter.toUpperCase();
});
var previousStyle = element.style[styleName]; var previousStyle = element.style[styleName];
element.style[styleName] = styleValue; element.style[styleName] = styleValue;

4
vendors/knockout/src/binding/defaultBindings/submit.js vendored
View file

@ -1,8 +1,8 @@
ko.bindingHandlers['submit'] = { ko.bindingHandlers['submit'] = {
'init': function (element, valueAccessor, allBindings, viewModel, bindingContext) { 'init': (element, valueAccessor, allBindings, viewModel, bindingContext) => {
if (typeof valueAccessor() != "function") if (typeof valueAccessor() != "function")
throw new Error("The value for a submit binding must be a function"); throw new Error("The value for a submit binding must be a function");
ko.utils.registerEventHandler(element, "submit", function (event) { ko.utils.registerEventHandler(element, "submit", event => {
var handlerReturnValue; var handlerReturnValue;
var value = valueAccessor(); var value = valueAccessor();
try { handlerReturnValue = value.call(bindingContext['$data'], element); } try { handlerReturnValue = value.call(bindingContext['$data'], element); }

7
vendors/knockout/src/binding/defaultBindings/text.js vendored
View file

@ -1,11 +1,10 @@
ko.bindingHandlers['text'] = { ko.bindingHandlers['text'] = {
'init': function() { 'init': () => {
// Prevent binding on the dynamically-injected text node (as developers are unlikely to expect that, and it has security implications). // Prevent binding on the dynamically-injected text node (as developers are unlikely to expect that, and it has security implications).
// It should also make things faster, as we no longer have to consider whether the text node might be bindable. // It should also make things faster, as we no longer have to consider whether the text node might be bindable.
return { 'controlsDescendantBindings': true }; return { 'controlsDescendantBindings': true };
}, },
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) =>
ko.utils.setTextContent(element, valueAccessor()); ko.utils.setTextContent(element, valueAccessor())
}
}; };
ko.virtualElements.allowedBindings['text'] = true; ko.virtualElements.allowedBindings['text'] = true;

27
vendors/knockout/src/binding/defaultBindings/textInput.js vendored
View file

@ -1,13 +1,11 @@
(function () {
ko.bindingHandlers['textInput'] = { ko.bindingHandlers['textInput'] = {
'init': function (element, valueAccessor, allBindings) { 'init': (element, valueAccessor, allBindings) => {
var previousElementValue = element.value, var previousElementValue = element.value,
timeoutHandle, timeoutHandle,
elementValueBeforeEvent; elementValueBeforeEvent;
var updateModel = function (event) { var updateModel = event => {
clearTimeout(timeoutHandle); clearTimeout(timeoutHandle);
elementValueBeforeEvent = timeoutHandle = undefined; elementValueBeforeEvent = timeoutHandle = undefined;
@ -20,7 +18,7 @@ ko.bindingHandlers['textInput'] = {
} }
}; };
var deferUpdateModel = function (event) { var deferUpdateModel = event => {
if (!timeoutHandle) { if (!timeoutHandle) {
// The elementValueBeforeEvent variable is set *only* during the brief gap between an // The elementValueBeforeEvent variable is set *only* during the brief gap between an
// event firing and the updateModel function running. This allows us to ignore model // event firing and the updateModel function running. This allows us to ignore model
@ -32,11 +30,7 @@ ko.bindingHandlers['textInput'] = {
} }
}; };
// IE9 will mess up the DOM if you handle events synchronously which results in DOM changes (such as other bindings); var updateView = () => {
// so we'll make sure all updates are asynchronous
var ourUpdate = false;
var updateView = function () {
var modelValue = ko.utils.unwrapObservable(valueAccessor()); var modelValue = ko.utils.unwrapObservable(valueAccessor());
if (modelValue === null || modelValue === undefined) { if (modelValue === null || modelValue === undefined) {
@ -51,20 +45,17 @@ ko.bindingHandlers['textInput'] = {
// Update the element only if the element and model are different. On some browsers, updating the value // Update the element only if the element and model are different. On some browsers, updating the value
// will move the cursor to the end of the input, which would be bad while the user is typing. // will move the cursor to the end of the input, which would be bad while the user is typing.
if (element.value !== modelValue) { if (element.value !== modelValue) {
ourUpdate = true; // Make sure we ignore events (propertychange) that result from updating the value
element.value = modelValue; element.value = modelValue;
ourUpdate = false;
previousElementValue = element.value; // In case the browser changes the value (see #2281) previousElementValue = element.value; // In case the browser changes the value (see #2281)
} }
}; };
var onEvent = function (event, handler) { var onEvent = (event, handler) =>
ko.utils.registerEventHandler(element, event, handler); ko.utils.registerEventHandler(element, event, handler);
};
if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) { if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
// Provide a way for tests to specify exactly which events are bound // Provide a way for tests to specify exactly which events are bound
ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], function(eventName) { ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], eventName => {
if (eventName.slice(0,5) == 'after') { if (eventName.slice(0,5) == 'after') {
onEvent(eventName.slice(5), deferUpdateModel); onEvent(eventName.slice(5), deferUpdateModel);
} else { } else {
@ -89,9 +80,5 @@ ko.expressionRewriting.twoWayBindings['textInput'] = true;
// textinput is an alias for textInput // textinput is an alias for textInput
ko.bindingHandlers['textinput'] = { ko.bindingHandlers['textinput'] = {
// preprocess is the only way to set up a full alias // preprocess is the only way to set up a full alias
'preprocess': function (value, name, addBinding) { 'preprocess': (value, name, addBinding) => addBinding('textInput', value)
addBinding('textInput', value);
}
}; };
})();

8
vendors/knockout/src/binding/defaultBindings/uniqueName.js vendored
View file

@ -1,8 +0,0 @@
ko.bindingHandlers['uniqueName'] = {
'init': function (element, valueAccessor) {
if (valueAccessor()) {
element.name = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);
}
}
};
ko.bindingHandlers['uniqueName'].currentIndex = 0;

15
vendors/knockout/src/binding/defaultBindings/using.js vendored
View file

@ -1,15 +0,0 @@
ko.bindingHandlers['using'] = {
'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
var options;
if (allBindings['has']('as')) {
options = { 'as': allBindings.get('as'), 'noChildContext': allBindings.get('noChildContext') };
}
var innerContext = bindingContext['createChildContext'](valueAccessor, options);
ko.applyBindingsToDescendants(innerContext, element);
return { 'controlsDescendantBindings': true };
}
};
ko.virtualElements.allowedBindings['using'] = true;

22
vendors/knockout/src/binding/defaultBindings/value.js vendored
View file

@ -1,5 +1,5 @@
ko.bindingHandlers['value'] = { ko.bindingHandlers['value'] = {
'init': function (element, valueAccessor, allBindings) { 'init': (element, valueAccessor, allBindings) => {
var tagName = ko.utils.tagNameLower(element), var tagName = ko.utils.tagNameLower(element),
isInputElement = tagName == "input"; isInputElement = tagName == "input";
@ -18,27 +18,27 @@ ko.bindingHandlers['value'] = {
if (typeof requestedEventsToCatch == "string") { if (typeof requestedEventsToCatch == "string") {
eventsToCatch = [requestedEventsToCatch]; eventsToCatch = [requestedEventsToCatch];
} else { } else {
eventsToCatch = requestedEventsToCatch ? requestedEventsToCatch.filter(function(item, index) { eventsToCatch = requestedEventsToCatch ? requestedEventsToCatch.filter((item, index) =>
return requestedEventsToCatch.indexOf(item) === index; requestedEventsToCatch.indexOf(item) === index
}) : []; ) : [];
} }
ko.utils.arrayRemoveItem(eventsToCatch, "change"); // We'll subscribe to "change" events later ko.utils.arrayRemoveItem(eventsToCatch, "change"); // We'll subscribe to "change" events later
} }
var valueUpdateHandler = function() { var valueUpdateHandler = () => {
elementValueBeforeEvent = null; elementValueBeforeEvent = null;
var modelValue = valueAccessor(); var modelValue = valueAccessor();
var elementValue = ko.selectExtensions.readValue(element); var elementValue = ko.selectExtensions.readValue(element);
ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue); ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);
} }
ko.utils.arrayForEach(eventsToCatch, function(eventName) { ko.utils.arrayForEach(eventsToCatch, eventName => {
// The syntax "after<eventname>" means "run the handler asynchronously after the event" // The syntax "after<eventname>" means "run the handler asynchronously after the event"
// This is useful, for example, to catch "keydown" events after the browser has updated the control // This is useful, for example, to catch "keydown" events after the browser has updated the control
// (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event) // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)
var handler = valueUpdateHandler; var handler = valueUpdateHandler;
if (ko.utils.stringStartsWith(eventName, "after")) { if (ko.utils.stringStartsWith(eventName, "after")) {
handler = function() { handler = () => {
// The elementValueBeforeEvent variable is non-null *only* during the brief gap between // The elementValueBeforeEvent variable is non-null *only* during the brief gap between
// a keyX event firing and the valueUpdateHandler running, which is scheduled to happen // a keyX event firing and the valueUpdateHandler running, which is scheduled to happen
// at the earliest asynchronous opportunity. We store this temporary information so that // at the earliest asynchronous opportunity. We store this temporary information so that
@ -58,7 +58,7 @@ ko.bindingHandlers['value'] = {
if (isInputElement && element.type == "file") { if (isInputElement && element.type == "file") {
// For file input elements, can only write the empty string // For file input elements, can only write the empty string
updateFromModel = function () { updateFromModel = () => {
var newValue = ko.utils.unwrapObservable(valueAccessor()); var newValue = ko.utils.unwrapObservable(valueAccessor());
if (newValue === null || newValue === undefined || newValue === "") { if (newValue === null || newValue === undefined || newValue === "") {
element.value = ""; element.value = "";
@ -67,7 +67,7 @@ ko.bindingHandlers['value'] = {
} }
} }
} else { } else {
updateFromModel = function () { updateFromModel = () => {
var newValue = ko.utils.unwrapObservable(valueAccessor()); var newValue = ko.utils.unwrapObservable(valueAccessor());
var elementValue = ko.selectExtensions.readValue(element); var elementValue = ko.selectExtensions.readValue(element);
@ -96,7 +96,7 @@ ko.bindingHandlers['value'] = {
if (tagName === "select") { if (tagName === "select") {
var updateFromModelComputed; var updateFromModelComputed;
ko.bindingEvent.subscribe(element, ko.bindingEvent.childrenComplete, function () { ko.bindingEvent.subscribe(element, ko.bindingEvent.childrenComplete, () => {
if (!updateFromModelComputed) { if (!updateFromModelComputed) {
ko.utils.registerEventHandler(element, "change", valueUpdateHandler); ko.utils.registerEventHandler(element, "change", valueUpdateHandler);
updateFromModelComputed = ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element }); updateFromModelComputed = ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });
@ -111,6 +111,6 @@ ko.bindingHandlers['value'] = {
ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element }); ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });
} }
}, },
'update': function() {} // Keep for backwards compatibility with code that may have wrapped value binding 'update': () => {} // Keep for backwards compatibility with code that may have wrapped value binding
}; };
ko.expressionRewriting.twoWayBindings['value'] = true; ko.expressionRewriting.twoWayBindings['value'] = true;

7
vendors/knockout/src/binding/defaultBindings/visibleHidden.js vendored
View file

@ -1,5 +1,5 @@
ko.bindingHandlers['visible'] = { ko.bindingHandlers['visible'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) => {
var value = ko.utils.unwrapObservable(valueAccessor()); var value = ko.utils.unwrapObservable(valueAccessor());
var isCurrentlyVisible = !(element.style.display == "none"); var isCurrentlyVisible = !(element.style.display == "none");
if (value && !isCurrentlyVisible) if (value && !isCurrentlyVisible)
@ -10,7 +10,6 @@ ko.bindingHandlers['visible'] = {
}; };
ko.bindingHandlers['hidden'] = { ko.bindingHandlers['hidden'] = {
'update': function (element, valueAccessor) { 'update': (element, valueAccessor) =>
ko.bindingHandlers['visible']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) }); ko.bindingHandlers['visible']['update'](element, () => !ko.utils.unwrapObservable(valueAccessor()) )
}
}; };

10
vendors/knockout/src/binding/editDetection/arrayToDomNodeChildren.js vendored
View file

@ -1,4 +1,4 @@
(function () { (() => {
// Objective: // Objective:
// * Given an input array, a container DOM node, and a function from array elements to arrays of DOM nodes, // * Given an input array, a container DOM node, and a function from array elements to arrays of DOM nodes,
// map the array elements to arrays of DOM nodes, concatenate together all these arrays, and use them to populate the container DOM node // map the array elements to arrays of DOM nodes, concatenate together all these arrays, and use them to populate the container DOM node
@ -12,7 +12,7 @@
function mapNodeAndRefreshWhenChanged(containerNode, mapping, valueToMap, callbackAfterAddingNodes, index) { function mapNodeAndRefreshWhenChanged(containerNode, mapping, valueToMap, callbackAfterAddingNodes, index) {
// Map this array value inside a dependentObservable so we re-map when any dependency changes // Map this array value inside a dependentObservable so we re-map when any dependency changes
var mappedNodes = []; var mappedNodes = [];
var dependentObservable = ko.dependentObservable(function() { var dependentObservable = ko.dependentObservable(() => {
var newMappedNodes = mapping(valueToMap, index, ko.utils.fixUpContinuousNodeArray(mappedNodes, containerNode)) || []; var newMappedNodes = mapping(valueToMap, index, ko.utils.fixUpContinuousNodeArray(mappedNodes, containerNode)) || [];
// On subsequent evaluations, just replace the previously-inserted DOM nodes // On subsequent evaluations, just replace the previously-inserted DOM nodes
@ -33,7 +33,7 @@
var lastMappingResultDomDataKey = ko.utils.domData.nextKey(), var lastMappingResultDomDataKey = ko.utils.domData.nextKey(),
deletedItemDummyValue = ko.utils.domData.nextKey(); deletedItemDummyValue = ko.utils.domData.nextKey();
ko.utils.setDomNodeChildrenFromArrayMapping = function (domNode, array, mapping, options, callbackAfterAddingNodes, editScript) { ko.utils.setDomNodeChildrenFromArrayMapping = (domNode, array, mapping, options, callbackAfterAddingNodes, editScript) => {
array = array || []; array = array || [];
if (typeof array.length == "undefined") // Coerce single value into array if (typeof array.length == "undefined") // Coerce single value into array
array = [array]; array = [array];
@ -88,7 +88,7 @@
} else { } else {
if (!editScript || (lastMappingResult && lastMappingResult['_countWaitingForRemove'])) { if (!editScript || (lastMappingResult && lastMappingResult['_countWaitingForRemove'])) {
// Compare the provided array against the previous one // Compare the provided array against the previous one
var lastArray = Array.prototype.map.call(lastMappingResult, function (x) { return x.arrayEntry; }), var lastArray = Array.prototype.map.call(lastMappingResult, x => x.arrayEntry),
compareOptions = { compareOptions = {
'dontLimitMoves': options['dontLimitMoves'], 'dontLimitMoves': options['dontLimitMoves'],
'sparse': true 'sparse': true
@ -96,7 +96,7 @@
editScript = ko.utils.compareArrays(lastArray, array, compareOptions); editScript = ko.utils.compareArrays(lastArray, array, compareOptions);
} }
for (var i = 0, editScriptItem, movedIndex, itemIndex; editScriptItem = editScript[i]; i++) { for (let i = 0, editScriptItem, movedIndex, itemIndex; editScriptItem = editScript[i]; i++) {
movedIndex = editScriptItem['moved']; movedIndex = editScriptItem['moved'];
itemIndex = editScriptItem['index']; itemIndex = editScriptItem['index'];
switch (editScriptItem['status']) { switch (editScriptItem['status']) {

4
vendors/knockout/src/binding/editDetection/compareArrays.js vendored
View file

@ -1,5 +1,5 @@
// Go through the items that have been added and deleted and try to find matches between them. // Go through the items that have been added and deleted and try to find matches between them.
ko.utils.findMovesInArrayComparison = function (left, right, limitFailedCompares) { ko.utils.findMovesInArrayComparison = (left, right, limitFailedCompares) => {
if (left.length && right.length) { if (left.length && right.length) {
var failedCompares, l, r, leftItem, rightItem; var failedCompares, l, r, leftItem, rightItem;
for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) { for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) {
@ -17,7 +17,7 @@ ko.utils.findMovesInArrayComparison = function (left, right, limitFailedCompares
} }
}; };
ko.utils.compareArrays = (function () { ko.utils.compareArrays = (() => {
var statusNotInOld = 'added', statusNotInNew = 'deleted'; var statusNotInOld = 'added', statusNotInNew = 'deleted';
// Simple calculation based on Levenshtein distance. // Simple calculation based on Levenshtein distance.

28
vendors/knockout/src/binding/expressionRewriting.js vendored
View file

@ -1,4 +1,4 @@
ko.expressionRewriting = (function () { ko.expressionRewriting = (() => {
var javaScriptReservedWords = ["true", "false", "null", "undefined"]; var javaScriptReservedWords = ["true", "false", "null", "undefined"];
// Matches something that can be assigned to--either an isolated identifier or something ending with a property accessor // Matches something that can be assigned to--either an isolated identifier or something ending with a property accessor
@ -28,7 +28,7 @@ ko.expressionRewriting = (function () {
"//.*\n", "//.*\n",
// Match a regular expression (text enclosed by slashes), but will also match sets of divisions // Match a regular expression (text enclosed by slashes), but will also match sets of divisions
// as a regular expression (this is handled by the parsing loop below). // as a regular expression (this is handled by the parsing loop below).
'/(?:\\\\.|[^/])+/\w*', '/(?:\\\\.|[^/])+/w*',
// Match text (at least two characters) that does not contain any of the above special characters, // Match text (at least two characters) that does not contain any of the above special characters,
// although some of the special characters are allowed to start it (all but the colon and comma). // although some of the special characters are allowed to start it (all but the colon and comma).
// The text can contain spaces, but leading or trailing spaces are skipped. // The text can contain spaces, but leading or trailing spaces are skipped.
@ -143,9 +143,9 @@ ko.expressionRewriting = (function () {
keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ? keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ?
parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray; parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;
ko.utils.arrayForEach(keyValueArray, function(keyValue) { ko.utils.arrayForEach(keyValueArray, keyValue =>
processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value); processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value)
}); );
if (propertyAccessorResultStrings.length) if (propertyAccessorResultStrings.length)
processKeyValue('_ko_property_writers', "{" + propertyAccessorResultStrings.join(",") + " }"); processKeyValue('_ko_property_writers', "{" + propertyAccessorResultStrings.join(",") + " }");
@ -162,7 +162,7 @@ ko.expressionRewriting = (function () {
preProcessBindings: preProcessBindings, preProcessBindings: preProcessBindings,
keyValueArrayContainsKey: function(keyValueArray, key) { keyValueArrayContainsKey: (keyValueArray, key) => {
for (var i = 0; i < keyValueArray.length; i++) for (var i = 0; i < keyValueArray.length; i++)
if (keyValueArray[i]['key'] == key) if (keyValueArray[i]['key'] == key)
return true; return true;
@ -178,7 +178,7 @@ ko.expressionRewriting = (function () {
// value: The value to be written // value: The value to be written
// checkIfDifferent: If true, and if the property being written is a writable observable, the value will only be written if // checkIfDifferent: If true, and if the property being written is a writable observable, the value will only be written if
// it is !== existing value on that writable observable // it is !== existing value on that writable observable
writeValueToProperty: function(property, allBindings, key, value, checkIfDifferent) { writeValueToProperty: (property, allBindings, key, value, checkIfDifferent) => {
if (!property || !ko.isObservable(property)) { if (!property || !ko.isObservable(property)) {
var propWriters = allBindings.get('_ko_property_writers'); var propWriters = allBindings.get('_ko_property_writers');
if (propWriters && propWriters[key]) if (propWriters && propWriters[key])
@ -194,17 +194,3 @@ ko.exportSymbol('expressionRewriting', ko.expressionRewriting);
ko.exportSymbol('expressionRewriting.bindingRewriteValidators', ko.expressionRewriting.bindingRewriteValidators); ko.exportSymbol('expressionRewriting.bindingRewriteValidators', ko.expressionRewriting.bindingRewriteValidators);
ko.exportSymbol('expressionRewriting.parseObjectLiteral', ko.expressionRewriting.parseObjectLiteral); ko.exportSymbol('expressionRewriting.parseObjectLiteral', ko.expressionRewriting.parseObjectLiteral);
ko.exportSymbol('expressionRewriting.preProcessBindings', ko.expressionRewriting.preProcessBindings); ko.exportSymbol('expressionRewriting.preProcessBindings', ko.expressionRewriting.preProcessBindings);
// Making bindings explicitly declare themselves as "two way" isn't ideal in the long term (it would be better if
// all bindings could use an official 'property writer' API without needing to declare that they might). However,
// since this is not, and has never been, a public API (_ko_property_writers was never documented), it's acceptable
// as an internal implementation detail in the short term.
// For those developers who rely on _ko_property_writers in their custom bindings, we expose _twoWayBindings as an
// undocumented feature that makes it relatively easy to upgrade to KO 3.0. However, this is still not an official
// public API, and we reserve the right to remove it at any time if we create a real public property writers API.
ko.exportSymbol('expressionRewriting._twoWayBindings', ko.expressionRewriting.twoWayBindings);
// For backward compatibility, define the following aliases. (Previously, these function names were misleading because
// they referred to JSON specifically, even though they actually work with arbitrary JavaScript object literal expressions.)
ko.exportSymbol('jsonExpressionRewriting', ko.expressionRewriting);
ko.exportSymbol('jsonExpressionRewriting.insertPropertyAccessorsIntoJson', ko.expressionRewriting.preProcessBindings);

6
vendors/knockout/src/binding/selectExtensions.js vendored
View file

@ -1,11 +1,11 @@
(function () { (() => {
var hasDomDataExpandoProperty = '__ko__hasDomDataOptionValue__'; var hasDomDataExpandoProperty = '__ko__hasDomDataOptionValue__';
// Normally, SELECT elements and their OPTIONs can only take value of type 'string' (because the values // Normally, SELECT elements and their OPTIONs can only take value of type 'string' (because the values
// are stored on DOM attributes). ko.selectExtensions provides a way for SELECTs/OPTIONs to have values // are stored on DOM attributes). ko.selectExtensions provides a way for SELECTs/OPTIONs to have values
// that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns. // that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns.
ko.selectExtensions = { ko.selectExtensions = {
readValue : function(element) { readValue : element => {
switch (ko.utils.tagNameLower(element)) { switch (ko.utils.tagNameLower(element)) {
case 'option': case 'option':
if (element[hasDomDataExpandoProperty] === true) if (element[hasDomDataExpandoProperty] === true)
@ -18,7 +18,7 @@
} }
}, },
writeValue: function(element, value, allowUnset) { writeValue: (element, value, allowUnset) => {
switch (ko.utils.tagNameLower(element)) { switch (ko.utils.tagNameLower(element)) {
case 'option': case 'option':
if (typeof value === "string") { if (typeof value === "string") {

12
vendors/knockout/src/components/componentBinding.js vendored
View file

@ -1,12 +1,12 @@
(function(undefined) { (() => {
var componentLoadingOperationUniqueId = 0; var componentLoadingOperationUniqueId = 0;
ko.bindingHandlers['component'] = { ko.bindingHandlers['component'] = {
'init': function(element, valueAccessor, ignored1, ignored2, bindingContext) { 'init': (element, valueAccessor, ignored1, ignored2, bindingContext) => {
var currentViewModel, var currentViewModel,
currentLoadingOperationId, currentLoadingOperationId,
afterRenderSub, afterRenderSub,
disposeAssociatedComponentViewModel = function () { disposeAssociatedComponentViewModel = () => {
var currentViewModelDispose = currentViewModel && currentViewModel['dispose']; var currentViewModelDispose = currentViewModel && currentViewModel['dispose'];
if (typeof currentViewModelDispose === 'function') { if (typeof currentViewModelDispose === 'function') {
currentViewModelDispose.call(currentViewModel); currentViewModelDispose.call(currentViewModel);
@ -24,7 +24,7 @@
ko.virtualElements.emptyNode(element); ko.virtualElements.emptyNode(element);
ko.utils.domNodeDisposal.addDisposeCallback(element, disposeAssociatedComponentViewModel); ko.utils.domNodeDisposal.addDisposeCallback(element, disposeAssociatedComponentViewModel);
ko.computed(function () { ko.computed(() => {
var value = ko.utils.unwrapObservable(valueAccessor()), var value = ko.utils.unwrapObservable(valueAccessor()),
componentName, componentParams; componentName, componentParams;
@ -42,7 +42,7 @@
var asyncContext = ko.bindingEvent.startPossiblyAsyncContentBinding(element, bindingContext); var asyncContext = ko.bindingEvent.startPossiblyAsyncContentBinding(element, bindingContext);
var loadingOperationId = currentLoadingOperationId = ++componentLoadingOperationUniqueId; var loadingOperationId = currentLoadingOperationId = ++componentLoadingOperationUniqueId;
ko.components.get(componentName, function(componentDefinition) { ko.components.get(componentName, componentDefinition => {
// If this is not the current load operation for this element, ignore it. // If this is not the current load operation for this element, ignore it.
if (currentLoadingOperationId !== loadingOperationId) { if (currentLoadingOperationId !== loadingOperationId) {
return; return;
@ -64,7 +64,7 @@
var componentViewModel = createViewModel(componentDefinition, componentParams, componentInfo), var componentViewModel = createViewModel(componentDefinition, componentParams, componentInfo),
childBindingContext = asyncContext['createChildContext'](componentViewModel, { childBindingContext = asyncContext['createChildContext'](componentViewModel, {
'extend': function(ctx) { 'extend': ctx => {
ctx['$component'] = componentViewModel; ctx['$component'] = componentViewModel;
ctx['$componentTemplateNodes'] = originalChildNodes; ctx['$componentTemplateNodes'] = originalChildNodes;
} }

33
vendors/knockout/src/components/customElements.js vendored
View file

@ -1,7 +1,7 @@
(function (undefined) { (() => {
// Overridable API for determining which component name applies to a given node. By overriding this, // Overridable API for determining which component name applies to a given node. By overriding this,
// you can for example map specific tagNames to components that are not preregistered. // you can for example map specific tagNames to components that are not preregistered.
ko.components['getComponentNameForNode'] = function(node) { ko.components['getComponentNameForNode'] = node => {
var tagNameLower = ko.utils.tagNameLower(node); var tagNameLower = ko.utils.tagNameLower(node);
if (ko.components.isRegistered(tagNameLower)) { if (ko.components.isRegistered(tagNameLower)) {
// Try to determine that this node can be considered a *custom* element; see https://github.com/knockout/knockout/issues/1603 // Try to determine that this node can be considered a *custom* element; see https://github.com/knockout/knockout/issues/1603
@ -11,7 +11,7 @@
} }
}; };
ko.components.addBindingsForCustomElement = function(allBindings, node, bindingContext, valueAccessors) { ko.components.addBindingsForCustomElement = (allBindings, node, bindingContext, valueAccessors) => {
// Determine if it's really a custom element matching a component // Determine if it's really a custom element matching a component
if (node.nodeType === 1) { if (node.nodeType === 1) {
var componentName = ko.components['getComponentNameForNode'](node); var componentName = ko.components['getComponentNameForNode'](node);
@ -27,7 +27,7 @@
var componentBindingValue = { 'name': componentName, 'params': getComponentParamsFromCustomElement(node, bindingContext) }; var componentBindingValue = { 'name': componentName, 'params': getComponentParamsFromCustomElement(node, bindingContext) };
allBindings['component'] = valueAccessors allBindings['component'] = valueAccessors
? function() { return componentBindingValue; } ? () => componentBindingValue
: componentBindingValue; : componentBindingValue;
} }
} }
@ -42,10 +42,10 @@
if (paramsAttribute) { if (paramsAttribute) {
var params = nativeBindingProviderInstance['parseBindingsString'](paramsAttribute, bindingContext, elem, { 'valueAccessors': true, 'bindingParams': true }), var params = nativeBindingProviderInstance['parseBindingsString'](paramsAttribute, bindingContext, elem, { 'valueAccessors': true, 'bindingParams': true }),
rawParamComputedValues = ko.utils.objectMap(params, function(paramValue, paramName) { rawParamComputedValues = ko.utils.objectMap(params, paramValue =>
return ko.computed(paramValue, null, { disposeWhenNodeIsRemoved: elem }); ko.computed(paramValue, null, { disposeWhenNodeIsRemoved: elem })
}), ),
result = ko.utils.objectMap(rawParamComputedValues, function(paramValueComputed, paramName) { result = ko.utils.objectMap(rawParamComputedValues, paramValueComputed => {
var paramValue = paramValueComputed.peek(); var paramValue = paramValueComputed.peek();
// Does the evaluation of the parameter value unwrap any observables? // Does the evaluation of the parameter value unwrap any observables?
if (!paramValueComputed.isActive()) { if (!paramValueComputed.isActive()) {
@ -58,12 +58,8 @@
// This means the component doesn't have to worry about multiple unwrapping. If the value is a // This means the component doesn't have to worry about multiple unwrapping. If the value is a
// writable observable, the computed will also be writable and pass the value on to the observable. // writable observable, the computed will also be writable and pass the value on to the observable.
return ko.computed({ return ko.computed({
'read': function() { 'read': () => ko.utils.unwrapObservable(paramValueComputed()),
return ko.utils.unwrapObservable(paramValueComputed()); 'write': ko.isWriteableObservable(paramValue) && (value => paramValueComputed()(value)),
},
'write': ko.isWriteableObservable(paramValue) && function(value) {
paramValueComputed()(value);
},
disposeWhenNodeIsRemoved: elem disposeWhenNodeIsRemoved: elem
}); });
} }
@ -77,11 +73,10 @@
} }
return result; return result;
} else {
// For consistency, absence of a "params" attribute is treated the same as the presence of
// any empty one. Otherwise component viewmodels need special code to check whether or not
// 'params' or 'params.$raw' is null/undefined before reading subproperties, which is annoying.
return { '$raw': {} };
} }
// For consistency, absence of a "params" attribute is treated the same as the presence of
// any empty one. Otherwise component viewmodels need special code to check whether or not
// 'params' or 'params.$raw' is null/undefined before reading subproperties, which is annoying.
return { '$raw': {} };
} }
})(); })();

86
vendors/knockout/src/components/defaultLoader.js vendored
View file

@ -1,4 +1,4 @@
(function(undefined) { (() => {
// The default loader is responsible for two things: // The default loader is responsible for two things:
// 1. Maintaining the default in-memory registry of component configuration objects // 1. Maintaining the default in-memory registry of component configuration objects
@ -12,7 +12,7 @@
var defaultConfigRegistry = {}; var defaultConfigRegistry = {};
ko.components.register = function(componentName, config) { ko.components.register = (componentName, config) => {
if (!config) { if (!config) {
throw new Error('Invalid configuration for ' + componentName); throw new Error('Invalid configuration for ' + componentName);
} }
@ -24,37 +24,35 @@
defaultConfigRegistry[componentName] = config; defaultConfigRegistry[componentName] = config;
}; };
ko.components.isRegistered = function(componentName) { ko.components.isRegistered = componentName =>
return Object.prototype.hasOwnProperty.call(defaultConfigRegistry, componentName); Object.prototype.hasOwnProperty.call(defaultConfigRegistry, componentName);
};
ko.components.unregister = function(componentName) { ko.components.unregister = componentName => {
delete defaultConfigRegistry[componentName]; delete defaultConfigRegistry[componentName];
ko.components.clearCachedDefinition(componentName); ko.components.clearCachedDefinition(componentName);
}; };
ko.components.defaultLoader = { ko.components.defaultLoader = {
'getConfig': function(componentName, callback) { 'getConfig': (componentName, callback) => {
var result = ko.components.isRegistered(componentName) var result = ko.components.isRegistered(componentName)
? defaultConfigRegistry[componentName] ? defaultConfigRegistry[componentName]
: null; : null;
callback(result); callback(result);
}, },
'loadComponent': function(componentName, config, callback) { 'loadComponent': (componentName, config, callback) => {
var errorCallback = makeErrorCallback(componentName); var errorCallback = makeErrorCallback(componentName);
possiblyGetConfigFromAmd(errorCallback, config, function(loadedConfig) { possiblyGetConfigFromAmd(errorCallback, config, loadedConfig =>
resolveConfig(componentName, errorCallback, loadedConfig, callback); resolveConfig(componentName, errorCallback, loadedConfig, callback)
}); );
}, },
'loadTemplate': function(componentName, templateConfig, callback) { 'loadTemplate': (componentName, templateConfig, callback) =>
resolveTemplate(makeErrorCallback(componentName), templateConfig, callback); resolveTemplate(makeErrorCallback(componentName), templateConfig, callback)
}, ,
'loadViewModel': function(componentName, viewModelConfig, callback) { 'loadViewModel': (componentName, viewModelConfig, callback) =>
resolveViewModel(makeErrorCallback(componentName), viewModelConfig, callback); resolveViewModel(makeErrorCallback(componentName), viewModelConfig, callback)
}
}; };
var createViewModelKey = 'createViewModel'; var createViewModelKey = 'createViewModel';
@ -68,7 +66,7 @@
function resolveConfig(componentName, errorCallback, config, callback) { function resolveConfig(componentName, errorCallback, config, callback) {
var result = {}, var result = {},
makeCallBackWhenZero = 2, makeCallBackWhenZero = 2,
tryIssueCallback = function() { tryIssueCallback = () => {
if (--makeCallBackWhenZero === 0) { if (--makeCallBackWhenZero === 0) {
callback(result); callback(result);
} }
@ -77,23 +75,23 @@
viewModelConfig = config['viewModel']; viewModelConfig = config['viewModel'];
if (templateConfig) { if (templateConfig) {
possiblyGetConfigFromAmd(errorCallback, templateConfig, function(loadedConfig) { possiblyGetConfigFromAmd(errorCallback, templateConfig, loadedConfig =>
ko.components._getFirstResultFromLoaders('loadTemplate', [componentName, loadedConfig], function(resolvedTemplate) { ko.components._getFirstResultFromLoaders('loadTemplate', [componentName, loadedConfig], resolvedTemplate => {
result['template'] = resolvedTemplate; result['template'] = resolvedTemplate;
tryIssueCallback(); tryIssueCallback();
}); })
}); );
} else { } else {
tryIssueCallback(); tryIssueCallback();
} }
if (viewModelConfig) { if (viewModelConfig) {
possiblyGetConfigFromAmd(errorCallback, viewModelConfig, function(loadedConfig) { possiblyGetConfigFromAmd(errorCallback, viewModelConfig, loadedConfig =>
ko.components._getFirstResultFromLoaders('loadViewModel', [componentName, loadedConfig], function(resolvedViewModel) { ko.components._getFirstResultFromLoaders('loadViewModel', [componentName, loadedConfig], resolvedViewModel => {
result[createViewModelKey] = resolvedViewModel; result[createViewModelKey] = resolvedViewModel;
tryIssueCallback(); tryIssueCallback();
}); })
}); );
} else { } else {
tryIssueCallback(); tryIssueCallback();
} }
@ -106,12 +104,12 @@
} else if (templateConfig instanceof Array) { } else if (templateConfig instanceof Array) {
// Assume already an array of DOM nodes - pass through unchanged // Assume already an array of DOM nodes - pass through unchanged
callback(templateConfig); callback(templateConfig);
} else if (isDocumentFragment(templateConfig)) { } else if (templateConfig instanceof DocumentFragment) {
// Document fragment - use its child nodes // Document fragment - use its child nodes
callback(ko.utils.makeArray(templateConfig.childNodes)); callback(ko.utils.makeArray(templateConfig.childNodes));
} else if (templateConfig['element']) { } else if (templateConfig['element']) {
var element = templateConfig['element']; var element = templateConfig['element'];
if (isDomElement(element)) { if (element instanceof HTMLElement) {
// Element instance - copy its child nodes // Element instance - copy its child nodes
callback(cloneNodesFromTemplateSourceElement(element)); callback(cloneNodesFromTemplateSourceElement(element));
} else if (typeof element === 'string') { } else if (typeof element === 'string') {
@ -136,18 +134,14 @@
// By design, this does *not* supply componentInfo to the constructor, as the intent is that // By design, this does *not* supply componentInfo to the constructor, as the intent is that
// componentInfo contains non-viewmodel data (e.g., the component's element) that should only // componentInfo contains non-viewmodel data (e.g., the component's element) that should only
// be used in factory functions, not viewmodel constructors. // be used in factory functions, not viewmodel constructors.
callback(function (params /*, componentInfo */) { callback(params => new viewModelConfig(params));
return new viewModelConfig(params);
});
} else if (typeof viewModelConfig[createViewModelKey] === 'function') { } else if (typeof viewModelConfig[createViewModelKey] === 'function') {
// Already a factory function - use it as-is // Already a factory function - use it as-is
callback(viewModelConfig[createViewModelKey]); callback(viewModelConfig[createViewModelKey]);
} else if ('instance' in viewModelConfig) { } else if ('instance' in viewModelConfig) {
// Fixed object instance - promote to createViewModel format for API consistency // Fixed object instance - promote to createViewModel format for API consistency
var fixedInstance = viewModelConfig['instance']; var fixedInstance = viewModelConfig['instance'];
callback(function (params, componentInfo) { callback(() => fixedInstance);
return fixedInstance;
});
} else if ('viewModel' in viewModelConfig) { } else if ('viewModel' in viewModelConfig) {
// Resolved AMD module whose value is of the form { viewModel: ... } // Resolved AMD module whose value is of the form { viewModel: ... }
resolveViewModel(errorCallback, viewModelConfig['viewModel'], callback); resolveViewModel(errorCallback, viewModelConfig['viewModel'], callback);
@ -160,34 +154,18 @@
if ('template' == ko.utils.tagNameLower(elemInstance)) { if ('template' == ko.utils.tagNameLower(elemInstance)) {
// For browsers with proper <template> element support (i.e., where the .content property // For browsers with proper <template> element support (i.e., where the .content property
// gives a document fragment), use that document fragment. // gives a document fragment), use that document fragment.
if (isDocumentFragment(elemInstance.content)) { if (elemInstance.content instanceof DocumentFragment) {
return ko.utils.cloneNodes(elemInstance.content.childNodes); return ko.utils.cloneNodes(elemInstance.content.childNodes);
} }
} }
throw 'Template Source Element not a <template>'; throw 'Template Source Element not a <template>';
} }
function isDomElement(obj) {
if (window['HTMLElement']) {
return obj instanceof HTMLElement;
} else {
return obj && obj.tagName && obj.nodeType === 1;
}
}
function isDocumentFragment(obj) {
if (window['DocumentFragment']) {
return obj instanceof DocumentFragment;
} else {
return obj && obj.nodeType === 11;
}
}
function possiblyGetConfigFromAmd(errorCallback, config, callback) { function possiblyGetConfigFromAmd(errorCallback, config, callback) {
if (typeof config['require'] === 'string') { if (typeof config['require'] === 'string') {
// The config is the value of an AMD module // The config is the value of an AMD module
if (amdRequire || window['require']) { if (amdRequire || window['require']) {
(amdRequire || window['require'])([config['require']], function (module) { (amdRequire || window['require'])([config['require']], module => {
if (module && typeof module === 'object' && module.__esModule && module['default']) { if (module && typeof module === 'object' && module.__esModule && module['default']) {
module = module['default']; module = module['default'];
} }
@ -202,8 +180,8 @@
} }
function makeErrorCallback(componentName) { function makeErrorCallback(componentName) {
return function (message) { return message => {
throw new Error('Component \'' + componentName + '\': ' + message); throw new Error('Component \'' + componentName + '\': ' + message)
}; };
} }

32
vendors/knockout/src/components/loaderRegistry.js vendored
View file

@ -1,20 +1,20 @@
(function(undefined) { (() => {
var loadingSubscribablesCache = {}, // Tracks component loads that are currently in flight var loadingSubscribablesCache = {}, // Tracks component loads that are currently in flight
loadedDefinitionsCache = {}; // Tracks component loads that have already completed loadedDefinitionsCache = {}; // Tracks component loads that have already completed
ko.components = { ko.components = {
get: function(componentName, callback) { get: (componentName, callback) => {
var cachedDefinition = getObjectOwnProperty(loadedDefinitionsCache, componentName); var cachedDefinition = getObjectOwnProperty(loadedDefinitionsCache, componentName);
if (cachedDefinition) { if (cachedDefinition) {
// It's already loaded and cached. Reuse the same definition object. // It's already loaded and cached. Reuse the same definition object.
// Note that for API consistency, even cache hits complete asynchronously by default. // Note that for API consistency, even cache hits complete asynchronously by default.
// You can bypass this by putting synchronous:true on your component config. // You can bypass this by putting synchronous:true on your component config.
if (cachedDefinition.isSynchronousComponent) { if (cachedDefinition.isSynchronousComponent) {
ko.dependencyDetection.ignore(function() { // See comment in loaderRegistryBehaviors.js for reasoning ko.dependencyDetection.ignore(() => // See comment in loaderRegistryBehaviors.js for reasoning
callback(cachedDefinition.definition); callback(cachedDefinition.definition)
}); );
} else { } else {
ko.tasks.schedule(function() { callback(cachedDefinition.definition); }); ko.tasks.schedule(() => callback(cachedDefinition.definition) );
} }
} else { } else {
// Join the loading process that is already underway, or start a new one. // Join the loading process that is already underway, or start a new one.
@ -22,9 +22,9 @@
} }
}, },
clearCachedDefinition: function(componentName) { clearCachedDefinition: componentName =>
delete loadedDefinitionsCache[componentName]; delete loadedDefinitionsCache[componentName]
}, ,
_getFirstResultFromLoaders: getFirstResultFromLoaders _getFirstResultFromLoaders: getFirstResultFromLoaders
}; };
@ -41,7 +41,7 @@
subscribable = loadingSubscribablesCache[componentName] = new ko.subscribable(); subscribable = loadingSubscribablesCache[componentName] = new ko.subscribable();
subscribable.subscribe(callback); subscribable.subscribe(callback);
beginLoadingComponent(componentName, function(definition, config) { beginLoadingComponent(componentName, (definition, config) => {
var isSynchronousComponent = !!(config && config['synchronous']); var isSynchronousComponent = !!(config && config['synchronous']);
loadedDefinitionsCache[componentName] = { definition: definition, isSynchronousComponent: isSynchronousComponent }; loadedDefinitionsCache[componentName] = { definition: definition, isSynchronousComponent: isSynchronousComponent };
delete loadingSubscribablesCache[componentName]; delete loadingSubscribablesCache[componentName];
@ -57,9 +57,7 @@
// See comment in loaderRegistryBehaviors.js for reasoning // See comment in loaderRegistryBehaviors.js for reasoning
subscribable['notifySubscribers'](definition); subscribable['notifySubscribers'](definition);
} else { } else {
ko.tasks.schedule(function() { ko.tasks.schedule(() => subscribable['notifySubscribers'](definition));
subscribable['notifySubscribers'](definition);
});
} }
}); });
completedAsync = true; completedAsync = true;
@ -69,12 +67,12 @@
} }
function beginLoadingComponent(componentName, callback) { function beginLoadingComponent(componentName, callback) {
getFirstResultFromLoaders('getConfig', [componentName], function(config) { getFirstResultFromLoaders('getConfig', [componentName], config => {
if (config) { if (config) {
// We have a config, so now load its definition // We have a config, so now load its definition
getFirstResultFromLoaders('loadComponent', [componentName, config], function(definition) { getFirstResultFromLoaders('loadComponent', [componentName, config], definition =>
callback(definition, config); callback(definition, config)
}); );
} else { } else {
// The component has no config - it's unknown to all the loaders. // The component has no config - it's unknown to all the loaders.
// Note that this is not an error (e.g., a module loading error) - that would abort the // Note that this is not an error (e.g., a module loading error) - that would abort the

10
vendors/knockout/src/memoization.js vendored
View file

@ -22,7 +22,7 @@ ko.memoization = (function () {
} }
return { return {
memoize: function (callback) { memoize: callback => {
if (typeof callback != "function") if (typeof callback != "function")
throw new Error("You can only pass a function to ko.memoization.memoize()"); throw new Error("You can only pass a function to ko.memoization.memoize()");
var memoId = generateRandomId(); var memoId = generateRandomId();
@ -30,7 +30,7 @@ ko.memoization = (function () {
return "<!--[ko_memo:" + memoId + "]-->"; return "<!--[ko_memo:" + memoId + "]-->";
}, },
unmemoize: function (memoId, callbackParams) { unmemoize: (memoId, callbackParams) => {
var callback = memos[memoId]; var callback = memos[memoId];
if (callback === undefined) if (callback === undefined)
throw new Error("Couldn't find any memo with ID " + memoId + ". Perhaps it's already been unmemoized."); throw new Error("Couldn't find any memo with ID " + memoId + ". Perhaps it's already been unmemoized.");
@ -41,7 +41,7 @@ ko.memoization = (function () {
finally { delete memos[memoId]; } finally { delete memos[memoId]; }
}, },
unmemoizeDomNodeAndDescendants: function (domNode, extraCallbackParamsArray) { unmemoizeDomNodeAndDescendants: (domNode, extraCallbackParamsArray) => {
var memos = []; var memos = [];
findMemoNodes(domNode, memos); findMemoNodes(domNode, memos);
for (var i = 0, j = memos.length; i < j; i++) { for (var i = 0, j = memos.length; i < j; i++) {
@ -56,8 +56,8 @@ ko.memoization = (function () {
} }
}, },
parseMemoText: function (memoText) { parseMemoText: memoText => {
var match = memoText.match(/^\[ko_memo\:(.*?)\]$/); var match = memoText.match(/^\[ko_memo:(.*?)\]$/);
return match ? match[1] : null; return match ? match[1] : null;
} }
}; };

26
vendors/knockout/src/subscribables/dependencyDetection.js vendored
View file

@ -1,19 +1,9 @@
ko.computedContext = ko.dependencyDetection = (function () { ko.computedContext = ko.dependencyDetection = (() => {
var outerFrames = [], var outerFrames = [],
currentFrame, currentFrame,
lastId = 0; lastId = 0;
// Return a unique ID that can be assigned to an observable for dependency tracking.
// Theoretically, you could eventually overflow the number storage size, resulting
// in duplicate IDs. But in JavaScript, the largest exact integral value is 2^53
// or 9,007,199,254,740,992. If you created 1,000,000 IDs per second, it would
// take over 285 years to reach that number.
// Reference http://blog.vjeux.com/2010/javascript/javascript-max_int-number-limits.html
function getId() {
return ++lastId;
}
function begin(options) { function begin(options) {
outerFrames.push(currentFrame); outerFrames.push(currentFrame);
currentFrame = options; currentFrame = options;
@ -28,15 +18,15 @@ ko.computedContext = ko.dependencyDetection = (function () {
end: end, end: end,
registerDependency: function (subscribable) { registerDependency: subscribable => {
if (currentFrame) { if (currentFrame) {
if (!ko.isSubscribable(subscribable)) if (!ko.isSubscribable(subscribable))
throw new Error("Only subscribable things can act as dependencies"); throw new Error("Only subscribable things can act as dependencies");
currentFrame.callback.call(currentFrame.callbackTarget, subscribable, subscribable._id || (subscribable._id = getId())); currentFrame.callback.call(currentFrame.callbackTarget, subscribable, subscribable._id || (subscribable._id = ++lastId));
} }
}, },
ignore: function (callback, callbackTarget, callbackArgs) { ignore: (callback, callbackTarget, callbackArgs) => {
try { try {
begin(); begin();
return callback.apply(callbackTarget, callbackArgs || []); return callback.apply(callbackTarget, callbackArgs || []);
@ -45,22 +35,22 @@ ko.computedContext = ko.dependencyDetection = (function () {
} }
}, },
getDependenciesCount: function () { getDependenciesCount: () => {
if (currentFrame) if (currentFrame)
return currentFrame.computed.getDependenciesCount(); return currentFrame.computed.getDependenciesCount();
}, },
getDependencies: function () { getDependencies: () => {
if (currentFrame) if (currentFrame)
return currentFrame.computed.getDependencies(); return currentFrame.computed.getDependencies();
}, },
isInitial: function() { isInitial: () => {
if (currentFrame) if (currentFrame)
return currentFrame.isInitial; return currentFrame.isInitial;
}, },
computed: function() { computed: () => {
if (currentFrame) if (currentFrame)
return currentFrame.computed; return currentFrame.computed;
} }

58
vendors/knockout/src/subscribables/dependentObservable.js vendored
View file

@ -153,9 +153,9 @@ var computedFn = {
getDependencies: function () { getDependencies: function () {
var dependencyTracking = this[computedState].dependencyTracking, dependentObservables = []; var dependencyTracking = this[computedState].dependencyTracking, dependentObservables = [];
ko.utils.objectForEach(dependencyTracking, function (id, dependency) { ko.utils.objectForEach(dependencyTracking, (id, dependency) =>
dependentObservables[dependency._order] = dependency._target; dependentObservables[dependency._order] = dependency._target
}); );
return dependentObservables; return dependentObservables;
}, },
@ -167,9 +167,9 @@ var computedFn = {
if (ko.utils.arrayIndexOf(dependencies, obs) !== -1) { if (ko.utils.arrayIndexOf(dependencies, obs) !== -1) {
return true; return true;
} }
return !!ko.utils.arrayFirst(dependencies, function (dep) { return !!ko.utils.arrayFirst(dependencies, dep =>
return dep.hasAncestorDependency && dep.hasAncestorDependency(obs); dep.hasAncestorDependency && dep.hasAncestorDependency(obs)
}); );
}, },
addDependencyTracking: function (id, target, trackingObj) { addDependencyTracking: function (id, target, trackingObj) {
if (this[computedState].pure && target === this) { if (this[computedState].pure && target === this) {
@ -215,7 +215,7 @@ var computedFn = {
changeSub = target.subscribe(this.respondToChange, this); changeSub = target.subscribe(this.respondToChange, this);
return { return {
_target: target, _target: target,
dispose: function () { dispose: () => {
dirtySub.dispose(); dirtySub.dispose();
changeSub.dispose(); changeSub.dispose();
} }
@ -229,9 +229,9 @@ var computedFn = {
throttleEvaluationTimeout = computedObservable['throttleEvaluation']; throttleEvaluationTimeout = computedObservable['throttleEvaluation'];
if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) { if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) {
clearTimeout(this[computedState].evaluationTimeoutInstance); clearTimeout(this[computedState].evaluationTimeoutInstance);
this[computedState].evaluationTimeoutInstance = ko.utils.setTimeout(function () { this[computedState].evaluationTimeoutInstance = ko.utils.setTimeout(() =>
computedObservable.evaluateImmediate(true /*notifyChange*/); computedObservable.evaluateImmediate(true /*notifyChange*/)
}, throttleEvaluationTimeout); , throttleEvaluationTimeout);
} else if (computedObservable._evalDelayed) { } else if (computedObservable._evalDelayed) {
computedObservable._evalDelayed(true /*isChange*/); computedObservable._evalDelayed(true /*isChange*/);
} else { } else {
@ -340,7 +340,7 @@ var computedFn = {
return changed; return changed;
}, },
evaluateImmediate_CallReadThenEndDependencyDetection: function (state, dependencyDetectionContext) { evaluateImmediate_CallReadThenEndDependencyDetection: (state, dependencyDetectionContext) => {
// This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic. // This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.
// You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection // You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection
// can be independent of try/finally blocks, which contributes to saving about 40% off the CPU // can be independent of try/finally blocks, which contributes to saving about 40% off the CPU
@ -399,10 +399,9 @@ var computedFn = {
dispose: function () { dispose: function () {
var state = this[computedState]; var state = this[computedState];
if (!state.isSleeping && state.dependencyTracking) { if (!state.isSleeping && state.dependencyTracking) {
ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) { ko.utils.objectForEach(state.dependencyTracking, (id, dependency) =>
if (dependency.dispose) dependency.dispose && dependency.dispose()
dependency.dispose(); );
});
} }
if (state.disposeWhenNodeIsRemoved && state.domNodeDisposalCallback) { if (state.disposeWhenNodeIsRemoved && state.domNodeDisposalCallback) {
ko.utils.domNodeDisposal.removeDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback); ko.utils.domNodeDisposal.removeDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback);
@ -438,11 +437,11 @@ var pureComputedOverrides = {
} else { } else {
// First put the dependencies in order // First put the dependencies in order
var dependenciesOrder = []; var dependenciesOrder = [];
ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) { ko.utils.objectForEach(state.dependencyTracking, (id, dependency) =>
dependenciesOrder[dependency._order] = id; dependenciesOrder[dependency._order] = id
}); );
// Next, subscribe to each one // Next, subscribe to each one
ko.utils.arrayForEach(dependenciesOrder, function (id, order) { ko.utils.arrayForEach(dependenciesOrder, (id, order) => {
var dependency = state.dependencyTracking[id], var dependency = state.dependencyTracking[id],
subscription = computedObservable.subscribeToDependency(dependency._target); subscription = computedObservable.subscribeToDependency(dependency._target);
subscription._order = order; subscription._order = order;
@ -465,7 +464,7 @@ var pureComputedOverrides = {
afterSubscriptionRemove: function (event) { afterSubscriptionRemove: function (event) {
var state = this[computedState]; var state = this[computedState];
if (!state.isDisposed && event == 'change' && !this.hasSubscriptionsForEvent('change')) { if (!state.isDisposed && event == 'change' && !this.hasSubscriptionsForEvent('change')) {
ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) { ko.utils.objectForEach(state.dependencyTracking, (id, dependency) => {
if (dependency.dispose) { if (dependency.dispose) {
state.dependencyTracking[id] = { state.dependencyTracking[id] = {
_target: dependency._target, _target: dependency._target,
@ -510,13 +509,9 @@ if (ko.utils.canSetPrototype) {
var protoProp = ko.observable.protoProperty; // == "__ko_proto__" var protoProp = ko.observable.protoProperty; // == "__ko_proto__"
computedFn[protoProp] = ko.computed; computedFn[protoProp] = ko.computed;
ko.isComputed = function (instance) { ko.isComputed = instance => (typeof instance == 'function' && instance[protoProp] === computedFn[protoProp]);
return (typeof instance == 'function' && instance[protoProp] === computedFn[protoProp]);
};
ko.isPureComputed = function (instance) { ko.isPureComputed = instance => ko.isComputed(instance) && instance[computedState] && instance[computedState].pure;
return ko.isComputed(instance) && instance[computedState] && instance[computedState].pure;
};
ko.exportSymbol('computed', ko.computed); ko.exportSymbol('computed', ko.computed);
ko.exportSymbol('dependentObservable', ko.computed); // export ko.dependentObservable for backwards compatibility (1.x) ko.exportSymbol('dependentObservable', ko.computed); // export ko.dependentObservable for backwards compatibility (1.x)
@ -529,13 +524,12 @@ ko.exportProperty(computedFn, 'isActive', computedFn.isActive);
ko.exportProperty(computedFn, 'getDependenciesCount', computedFn.getDependenciesCount); ko.exportProperty(computedFn, 'getDependenciesCount', computedFn.getDependenciesCount);
ko.exportProperty(computedFn, 'getDependencies', computedFn.getDependencies); ko.exportProperty(computedFn, 'getDependencies', computedFn.getDependencies);
ko.pureComputed = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget) { ko.pureComputed = (evaluatorFunctionOrOptions, evaluatorFunctionTarget) => {
if (typeof evaluatorFunctionOrOptions === 'function') { if (typeof evaluatorFunctionOrOptions === 'function') {
return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget, {'pure':true}); return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget, {'pure':true});
} else {
evaluatorFunctionOrOptions = ko.utils.extend({}, evaluatorFunctionOrOptions); // make a copy of the parameter object
evaluatorFunctionOrOptions['pure'] = true;
return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget);
} }
} evaluatorFunctionOrOptions = ko.utils.extend({}, evaluatorFunctionOrOptions); // make a copy of the parameter object
evaluatorFunctionOrOptions['pure'] = true;
return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget);
};
ko.exportSymbol('pureComputed', ko.pureComputed); ko.exportSymbol('pureComputed', ko.pureComputed);

30
vendors/knockout/src/subscribables/extenders.js vendored
View file

@ -1,5 +1,5 @@
ko.extenders = { ko.extenders = {
'throttle': function(target, timeout) { 'throttle': (target, timeout) => {
// Throttling means two things: // Throttling means two things:
// (1) For dependent observables, we throttle *evaluations* so that, no matter how fast its dependencies // (1) For dependent observables, we throttle *evaluations* so that, no matter how fast its dependencies
@ -11,16 +11,14 @@ ko.extenders = {
var writeTimeoutInstance = null; var writeTimeoutInstance = null;
return ko.dependentObservable({ return ko.dependentObservable({
'read': target, 'read': target,
'write': function(value) { 'write': value => {
clearTimeout(writeTimeoutInstance); clearTimeout(writeTimeoutInstance);
writeTimeoutInstance = ko.utils.setTimeout(function() { writeTimeoutInstance = ko.utils.setTimeout(() => target(value), timeout);
target(value);
}, timeout);
} }
}); });
}, },
'rateLimit': function(target, options) { 'rateLimit': (target, options) => {
var timeout, method, limitFunction; var timeout, method, limitFunction;
if (typeof options == 'number') { if (typeof options == 'number') {
@ -34,22 +32,20 @@ ko.extenders = {
target._deferUpdates = false; target._deferUpdates = false;
limitFunction = typeof method == 'function' ? method : method == 'notifyWhenChangesStop' ? debounce : throttle; limitFunction = typeof method == 'function' ? method : method == 'notifyWhenChangesStop' ? debounce : throttle;
target.limit(function(callback) { target.limit(callback => limitFunction(callback, timeout, options));
return limitFunction(callback, timeout, options);
});
}, },
'deferred': function(target, options) { 'deferred': (target, options) => {
if (options !== true) { if (options !== true) {
throw new Error('The \'deferred\' extender only accepts the value \'true\', because it is not supported to turn deferral off once enabled.') throw new Error('The \'deferred\' extender only accepts the value \'true\', because it is not supported to turn deferral off once enabled.')
} }
if (!target._deferUpdates) { if (!target._deferUpdates) {
target._deferUpdates = true; target._deferUpdates = true;
target.limit(function (callback) { target.limit(callback => {
var handle, var handle,
ignoreUpdates = false; ignoreUpdates = false;
return function () { return () => {
if (!ignoreUpdates) { if (!ignoreUpdates) {
ko.tasks.cancel(handle); ko.tasks.cancel(handle);
handle = ko.tasks.schedule(callback); handle = ko.tasks.schedule(callback);
@ -66,7 +62,7 @@ ko.extenders = {
} }
}, },
'notify': function(target, notifyWhen) { 'notify': (target, notifyWhen) => {
target["equalityComparer"] = notifyWhen == "always" ? target["equalityComparer"] = notifyWhen == "always" ?
null : // null equalityComparer means to always notify null : // null equalityComparer means to always notify
valuesArePrimitiveAndEqual; valuesArePrimitiveAndEqual;
@ -81,9 +77,9 @@ function valuesArePrimitiveAndEqual(a, b) {
function throttle(callback, timeout) { function throttle(callback, timeout) {
var timeoutInstance; var timeoutInstance;
return function () { return () => {
if (!timeoutInstance) { if (!timeoutInstance) {
timeoutInstance = ko.utils.setTimeout(function () { timeoutInstance = ko.utils.setTimeout(() => {
timeoutInstance = undefined; timeoutInstance = undefined;
callback(); callback();
}, timeout); }, timeout);
@ -93,7 +89,7 @@ function throttle(callback, timeout) {
function debounce(callback, timeout) { function debounce(callback, timeout) {
var timeoutInstance; var timeoutInstance;
return function () { return () => {
clearTimeout(timeoutInstance); clearTimeout(timeoutInstance);
timeoutInstance = ko.utils.setTimeout(callback, timeout); timeoutInstance = ko.utils.setTimeout(callback, timeout);
}; };
@ -102,7 +98,7 @@ function debounce(callback, timeout) {
function applyExtenders(requestedExtenders) { function applyExtenders(requestedExtenders) {
var target = this; var target = this;
if (requestedExtenders) { if (requestedExtenders) {
ko.utils.objectForEach(requestedExtenders, function(key, value) { ko.utils.objectForEach(requestedExtenders, (key, value) => {
var extenderHandler = ko.extenders[key]; var extenderHandler = ko.extenders[key];
if (typeof extenderHandler == 'function') { if (typeof extenderHandler == 'function') {
target = extenderHandler(target, value) || target; target = extenderHandler(target, value) || target;

6
vendors/knockout/src/subscribables/observable.js vendored
View file

@ -1,6 +1,6 @@
var observableLatestValue = Symbol('_latestValue'); var observableLatestValue = Symbol('_latestValue');
ko.observable = function (initialValue) { ko.observable = initialValue => {
function observable() { function observable() {
if (arguments.length > 0) { if (arguments.length > 0) {
// Write // Write
@ -59,7 +59,7 @@ if (ko.utils.canSetPrototype) {
var protoProperty = ko.observable.protoProperty = '__ko_proto__'; var protoProperty = ko.observable.protoProperty = '__ko_proto__';
observableFn[protoProperty] = ko.observable; observableFn[protoProperty] = ko.observable;
ko.isObservable = function (instance) { ko.isObservable = instance => {
var proto = typeof instance == 'function' && instance[protoProperty]; var proto = typeof instance == 'function' && instance[protoProperty];
if (proto && proto !== observableFn[protoProperty] && proto !== ko.computed['fn'][protoProperty]) { if (proto && proto !== observableFn[protoProperty] && proto !== ko.computed['fn'][protoProperty]) {
throw Error("Invalid object that looks like an observable; possibly from another Knockout instance"); throw Error("Invalid object that looks like an observable; possibly from another Knockout instance");
@ -67,7 +67,7 @@ ko.isObservable = function (instance) {
return !!proto; return !!proto;
}; };
ko.isWriteableObservable = function (instance) { ko.isWriteableObservable = instance => {
return (typeof instance == 'function' && ( return (typeof instance == 'function' && (
(instance[protoProperty] === observableFn[protoProperty]) || // Observable (instance[protoProperty] === observableFn[protoProperty]) || // Observable
(instance[protoProperty] === ko.computed['fn'][protoProperty] && instance.hasWriteFunction))); // Writable computed observable (instance[protoProperty] === ko.computed['fn'][protoProperty] && instance.hasWriteFunction))); // Writable computed observable

12
vendors/knockout/src/subscribables/observableArray.changeTracking.js vendored
View file

@ -1,5 +1,5 @@
var arrayChangeEventName = 'arrayChange'; var arrayChangeEventName = 'arrayChange';
ko.extenders['trackArrayChanges'] = function(target, options) { ko.extenders['trackArrayChanges'] = (target, options) => {
// Use the provided options--each call to trackArrayChanges overwrites the previously set options // Use the provided options--each call to trackArrayChanges overwrites the previously set options
target.compareArrayOptions = {}; target.compareArrayOptions = {};
if (options && typeof options == "object") { if (options && typeof options == "object") {
@ -21,7 +21,7 @@ ko.extenders['trackArrayChanges'] = function(target, options) {
underlyingAfterSubscriptionRemoveFunction = target.afterSubscriptionRemove; underlyingAfterSubscriptionRemoveFunction = target.afterSubscriptionRemove;
// Watch "subscribe" calls, and for array change events, ensure change tracking is enabled // Watch "subscribe" calls, and for array change events, ensure change tracking is enabled
target.beforeSubscriptionAdd = function (event) { target.beforeSubscriptionAdd = event => {
if (underlyingBeforeSubscriptionAddFunction) { if (underlyingBeforeSubscriptionAddFunction) {
underlyingBeforeSubscriptionAddFunction.call(target, event); underlyingBeforeSubscriptionAddFunction.call(target, event);
} }
@ -30,7 +30,7 @@ ko.extenders['trackArrayChanges'] = function(target, options) {
} }
}; };
// Watch "dispose" calls, and for array change events, ensure change tracking is disabled when all are disposed // Watch "dispose" calls, and for array change events, ensure change tracking is disabled when all are disposed
target.afterSubscriptionRemove = function (event) { target.afterSubscriptionRemove = event => {
if (underlyingAfterSubscriptionRemoveFunction) { if (underlyingAfterSubscriptionRemoveFunction) {
underlyingAfterSubscriptionRemoveFunction.call(target, event); underlyingAfterSubscriptionRemoveFunction.call(target, event);
} }
@ -58,9 +58,7 @@ ko.extenders['trackArrayChanges'] = function(target, options) {
trackingChanges = true; trackingChanges = true;
// Track how many times the array actually changed value // Track how many times the array actually changed value
spectateSubscription = target.subscribe(function () { spectateSubscription = target.subscribe(() => ++pendingChanges, null, "spectate");
++pendingChanges;
}, null, "spectate");
// Each time the array changes value, capture a clone so that on the next // Each time the array changes value, capture a clone so that on the next
// change it's possible to produce a diff // change it's possible to produce a diff
@ -102,7 +100,7 @@ ko.extenders['trackArrayChanges'] = function(target, options) {
return cachedDiff; return cachedDiff;
} }
target.cacheDiffForKnownOperation = function(rawArray, operationName, args) { target.cacheDiffForKnownOperation = (rawArray, operationName, args) => {
// Only run if we're currently tracking changes for this observable array // Only run if we're currently tracking changes for this observable array
// and there aren't any pending deferred notifications. // and there aren't any pending deferred notifications.
if (!trackingChanges || pendingChanges) { if (!trackingChanges || pendingChanges) {

8
vendors/knockout/src/subscribables/observableArray.js vendored
View file

@ -1,4 +1,4 @@
ko.observableArray = function (initialValues) { ko.observableArray = initialValues => {
initialValues = initialValues || []; initialValues = initialValues || [];
if (typeof initialValues != 'object' || !('length' in initialValues)) if (typeof initialValues != 'object' || !('length' in initialValues))
@ -66,7 +66,7 @@ if (ko.utils.canSetPrototype) {
// Populate ko.observableArray.fn with read/write functions from native arrays // Populate ko.observableArray.fn with read/write functions from native arrays
// Important: Do not add any additional functions here that may reasonably be used to *read* data from the array // Important: Do not add any additional functions here that may reasonably be used to *read* data from the array
// because we'll eval them without causing subscriptions, so ko.computed output could end up getting stale // because we'll eval them without causing subscriptions, so ko.computed output could end up getting stale
ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "unshift"], function (methodName) { ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "unshift"], methodName => {
ko.observableArray['fn'][methodName] = function () { ko.observableArray['fn'][methodName] = function () {
// Use "peek" to avoid creating a subscription in any computed that we're executing in the context of // Use "peek" to avoid creating a subscription in any computed that we're executing in the context of
// (for consistency with mutating regular observables) // (for consistency with mutating regular observables)
@ -81,14 +81,14 @@ ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "uns
}); });
// Populate ko.observableArray.fn with read-only functions from native arrays // Populate ko.observableArray.fn with read-only functions from native arrays
ko.utils.arrayForEach(["slice"], function (methodName) { ko.utils.arrayForEach(["slice"], methodName => {
ko.observableArray['fn'][methodName] = function () { ko.observableArray['fn'][methodName] = function () {
var underlyingArray = this(); var underlyingArray = this();
return underlyingArray[methodName].apply(underlyingArray, arguments); return underlyingArray[methodName].apply(underlyingArray, arguments);
}; };
}); });
ko.isObservableArray = function (instance) { ko.isObservableArray = instance => {
return ko.isObservable(instance) return ko.isObservable(instance)
&& typeof instance["remove"] == "function" && typeof instance["remove"] == "function"
&& typeof instance["push"] == "function"; && typeof instance["push"] == "function";

9
vendors/knockout/src/subscribables/observableUtils.js vendored
View file

@ -1,7 +1,7 @@
ko.when = function(predicate, callback, context) { ko.when = (predicate, callback, context) => {
function kowhen (resolve) { function kowhen (resolve) {
var observable = ko.pureComputed(predicate, context).extend({notify:'always'}); var observable = ko.pureComputed(predicate, context).extend({notify:'always'});
var subscription = observable.subscribe(function(value) { var subscription = observable.subscribe(value => {
if (value) { if (value) {
subscription.dispose(); subscription.dispose();
resolve(value); resolve(value);
@ -12,10 +12,7 @@ ko.when = function(predicate, callback, context) {
return subscription; return subscription;
} }
if (callback) { return callback ? kowhen(callback.bind(context)) : new Promise(kowhen);
return kowhen(callback.bind(context));
}
return new Promise(kowhen);
}; };
ko.exportSymbol('when', ko.when); ko.exportSymbol('when', ko.when);

36
vendors/knockout/src/subscribables/subscribable.js vendored
View file

@ -45,7 +45,7 @@ function limitNotifySubscribers(value, event) {
} }
var ko_subscribable_fn = { var ko_subscribable_fn = {
init: function(instance) { init: instance => {
instance._subscriptions = { "change": [] }; instance._subscriptions = { "change": [] };
instance._versionNumber = 1; instance._versionNumber = 1;
}, },
@ -56,7 +56,7 @@ var ko_subscribable_fn = {
event = event || defaultEvent; event = event || defaultEvent;
var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback; var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback;
var subscription = new ko.subscription(self, boundCallback, function () { var subscription = new ko.subscription(self, boundCallback, () => {
ko.utils.arrayRemoveItem(self._subscriptions[event], subscription); ko.utils.arrayRemoveItem(self._subscriptions[event], subscription);
if (self.afterSubscriptionRemove) if (self.afterSubscriptionRemove)
self.afterSubscriptionRemove(event); self.afterSubscriptionRemove(event);
@ -115,7 +115,7 @@ var ko_subscribable_fn = {
self["notifySubscribers"] = limitNotifySubscribers; self["notifySubscribers"] = limitNotifySubscribers;
} }
var finish = limitFunction(function() { var finish = limitFunction(() => {
self._notificationIsPending = false; self._notificationIsPending = false;
// If an observable provided a reference to itself, access it to get the latest value. // If an observable provided a reference to itself, access it to get the latest value.
@ -132,7 +132,7 @@ var ko_subscribable_fn = {
} }
}); });
self._limitChange = function(value, isDirty) { self._limitChange = (value, isDirty) => {
if (!isDirty || !self._notificationIsPending) { if (!isDirty || !self._notificationIsPending) {
didUpdate = !isDirty; didUpdate = !isDirty;
} }
@ -141,16 +141,16 @@ var ko_subscribable_fn = {
pendingValue = value; pendingValue = value;
finish(); finish();
}; };
self._limitBeforeChange = function(value) { self._limitBeforeChange = value => {
if (!ignoreBeforeChange) { if (!ignoreBeforeChange) {
previousValue = value; previousValue = value;
self._origNotifySubscribers(value, beforeChange); self._origNotifySubscribers(value, beforeChange);
} }
}; };
self._recordUpdate = function() { self._recordUpdate = () => {
didUpdate = true; didUpdate = true;
}; };
self._notifyNextChangeIfValueIsDifferent = function() { self._notifyNextChangeIfValueIsDifferent = () => {
if (self.isDifferent(previousValue, self.peek(true /*evaluate*/))) { if (self.isDifferent(previousValue, self.peek(true /*evaluate*/))) {
notifyNextChange = true; notifyNextChange = true;
} }
@ -164,23 +164,20 @@ var ko_subscribable_fn = {
getSubscriptionsCount: function (event) { getSubscriptionsCount: function (event) {
if (event) { if (event) {
return this._subscriptions[event] && this._subscriptions[event].length || 0; return this._subscriptions[event] && this._subscriptions[event].length || 0;
} else {
var total = 0;
ko.utils.objectForEach(this._subscriptions, function(eventName, subscriptions) {
if (eventName !== 'dirty')
total += subscriptions.length;
});
return total;
} }
var total = 0;
ko.utils.objectForEach(this._subscriptions, (eventName, subscriptions) => {
if (eventName !== 'dirty')
total += subscriptions.length;
});
return total;
}, },
isDifferent: function(oldValue, newValue) { isDifferent: function(oldValue, newValue) {
return !this['equalityComparer'] || !this['equalityComparer'](oldValue, newValue); return !this['equalityComparer'] || !this['equalityComparer'](oldValue, newValue);
}, },
toString: function() { toString: () => '[object Object]',
return '[object Object]'
},
extend: applyExtenders extend: applyExtenders
}; };
@ -200,9 +197,8 @@ if (ko.utils.canSetPrototype) {
ko.subscribable['fn'] = ko_subscribable_fn; ko.subscribable['fn'] = ko_subscribable_fn;
ko.isSubscribable = function (instance) { ko.isSubscribable = instance =>
return instance != null && typeof instance.subscribe == "function" && typeof instance["notifySubscribers"] == "function"; instance != null && typeof instance.subscribe == "function" && typeof instance["notifySubscribers"] == "function";
};
ko.exportSymbol('subscribable', ko.subscribable); ko.exportSymbol('subscribable', ko.subscribable);
ko.exportSymbol('isSubscribable', ko.isSubscribable); ko.exportSymbol('isSubscribable', ko.isSubscribable);

35
vendors/knockout/src/tasks.js vendored
View file

@ -1,16 +1,15 @@
ko.tasks = (function () { ko.tasks = (() => {
var scheduler, var taskQueue = [],
taskQueue = [],
taskQueueLength = 0, taskQueueLength = 0,
nextHandle = 1, nextHandle = 1,
nextIndexToProcess = 0; nextIndexToProcess = 0,
// Chrome 27+, Firefox 14+, IE 11+, Opera 15+, Safari 6.1+ // Chrome 27+, Firefox 14+, IE 11+, Opera 15+, Safari 6.1+
// From https://github.com/petkaantonov/bluebird * Copyright (c) 2014 Petka Antonov * License: MIT // From https://github.com/petkaantonov/bluebird * Copyright (c) 2014 Petka Antonov * License: MIT
scheduler = (function (callback) { scheduler = (callback => {
var div = document.createElement("div"); var div = document.createElement("div");
new MutationObserver(callback).observe(div, {attributes: true}); new MutationObserver(callback).observe(div, {attributes: true});
return function () { div.classList.toggle("foo"); }; return () => div.classList.toggle("foo");
})(scheduledProcess); })(scheduledProcess);
function processTasks() { function processTasks() {
@ -47,37 +46,22 @@ ko.tasks = (function () {
nextIndexToProcess = taskQueueLength = taskQueue.length = 0; nextIndexToProcess = taskQueueLength = taskQueue.length = 0;
} }
function scheduleTaskProcessing() {
ko.tasks['scheduler'](scheduledProcess);
}
var tasks = { var tasks = {
'scheduler': scheduler, // Allow overriding the scheduler schedule: func => {
schedule: function (func) {
if (!taskQueueLength) { if (!taskQueueLength) {
scheduleTaskProcessing(); scheduler(scheduledProcess);
} }
taskQueue[taskQueueLength++] = func; taskQueue[taskQueueLength++] = func;
return nextHandle++; return nextHandle++;
}, },
cancel: function (handle) { cancel: handle => {
var index = handle - (nextHandle - taskQueueLength); var index = handle - (nextHandle - taskQueueLength);
if (index >= nextIndexToProcess && index < taskQueueLength) { if (index >= nextIndexToProcess && index < taskQueueLength) {
taskQueue[index] = null; taskQueue[index] = null;
} }
}, }
// For testing only: reset the queue and return the previous queue length
'resetForTesting': function () {
var length = taskQueueLength - nextIndexToProcess;
nextIndexToProcess = taskQueueLength = taskQueue.length = 0;
return length;
},
runEarly: processTasks
}; };
return tasks; return tasks;
@ -86,4 +70,3 @@ ko.tasks = (function () {
ko.exportSymbol('tasks', ko.tasks); ko.exportSymbol('tasks', ko.tasks);
ko.exportSymbol('tasks.schedule', ko.tasks.schedule); ko.exportSymbol('tasks.schedule', ko.tasks.schedule);
//ko.exportSymbol('tasks.cancel', ko.tasks.cancel); "cancel" isn't minified //ko.exportSymbol('tasks.cancel', ko.tasks.cancel); "cancel" isn't minified
ko.exportSymbol('tasks.runEarly', ko.tasks.runEarly);

2
vendors/knockout/src/templating/native/nativeTemplateEngine.js vendored
View file

@ -4,7 +4,7 @@ ko.nativeTemplateEngine = function () {
ko.nativeTemplateEngine.prototype = new ko.templateEngine(); ko.nativeTemplateEngine.prototype = new ko.templateEngine();
ko.nativeTemplateEngine.prototype.constructor = ko.nativeTemplateEngine; ko.nativeTemplateEngine.prototype.constructor = ko.nativeTemplateEngine;
ko.nativeTemplateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) { ko.nativeTemplateEngine.prototype['renderTemplateSource'] = (templateSource, bindingContext, options, templateDocument) => {
var templateNodesFunc = templateSource.nodes, var templateNodesFunc = templateSource.nodes,
templateNodes = templateNodesFunc ? templateSource.nodes() : null; templateNodes = templateNodesFunc ? templateSource.nodes() : null;
if (templateNodes) { if (templateNodes) {

6
vendors/knockout/src/templating/templateEngine.js vendored
View file

@ -27,15 +27,15 @@
ko.templateEngine = function () { }; ko.templateEngine = function () { };
ko.templateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) { ko.templateEngine.prototype['renderTemplateSource'] = (templateSource, bindingContext, options, templateDocument) => {
throw new Error("Override renderTemplateSource"); throw new Error("Override renderTemplateSource");
}; };
ko.templateEngine.prototype['createJavaScriptEvaluatorBlock'] = function (script) { ko.templateEngine.prototype['createJavaScriptEvaluatorBlock'] = script => {
throw new Error("Override createJavaScriptEvaluatorBlock"); throw new Error("Override createJavaScriptEvaluatorBlock");
}; };
ko.templateEngine.prototype['makeTemplateSource'] = function(template, templateDocument) { ko.templateEngine.prototype['makeTemplateSource'] = (template, templateDocument) => {
// Named template // Named template
if (typeof template == "string") { if (typeof template == "string") {
templateDocument = templateDocument || document; templateDocument = templateDocument || document;

26
vendors/knockout/src/templating/templateRewriting.js vendored
View file

@ -1,5 +1,5 @@
ko.templateRewriting = (function () { ko.templateRewriting = (() => {
var memoizeDataBindingAttributeSyntaxRegex = /(<([a-z]+\d*)(?:\s+(?!data-bind\s*=\s*)[a-z0-9\-]+(?:=(?:\"[^\"]*\"|\'[^\']*\'|[^>]*))?)*\s+)data-bind\s*=\s*(["'])([\s\S]*?)\3/gi; var memoizeDataBindingAttributeSyntaxRegex = /(<([a-z]+\d*)(?:\s+(?!data-bind\s*=\s*)[a-z0-9\-]+(?:=(?:\"[^\"]*\"|\'[^\']*\'|[^>]*))?)*\s+)data-bind\s*=\s*(["'])([\s\S]*?)\3/gi;
var memoizeVirtualContainerBindingSyntaxRegex = /<!--\s*ko\b\s*([\s\S]*?)\s*-->/g; var memoizeVirtualContainerBindingSyntaxRegex = /<!--\s*ko\b\s*([\s\S]*?)\s*-->/g;
@ -35,23 +35,23 @@ ko.templateRewriting = (function () {
} }
return { return {
ensureTemplateIsRewritten: function (template, templateEngine, templateDocument) { ensureTemplateIsRewritten: (template, templateEngine, templateDocument) => {
if (!templateEngine['isTemplateRewritten'](template, templateDocument)) if (!templateEngine['isTemplateRewritten'](template, templateDocument))
templateEngine['rewriteTemplate'](template, function (htmlString) { templateEngine['rewriteTemplate'](template, htmlString =>
return ko.templateRewriting.memoizeBindingAttributeSyntax(htmlString, templateEngine); ko.templateRewriting.memoizeBindingAttributeSyntax(htmlString, templateEngine)
}, templateDocument); , templateDocument);
}, },
memoizeBindingAttributeSyntax: function (htmlString, templateEngine) { memoizeBindingAttributeSyntax: (htmlString, templateEngine) => {
return htmlString.replace(memoizeDataBindingAttributeSyntaxRegex, function () { return htmlString.replace(memoizeDataBindingAttributeSyntaxRegex, (...args) =>
return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[4], /* tagToRetain: */ arguments[1], /* nodeName: */ arguments[2], templateEngine); constructMemoizedTagReplacement(/* dataBindAttributeValue: */ args[4], /* tagToRetain: */ args[1], /* nodeName: */ args[2], templateEngine)
}).replace(memoizeVirtualContainerBindingSyntaxRegex, function() { ).replace(memoizeVirtualContainerBindingSyntaxRegex, (...args) =>
return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[1], /* tagToRetain: */ "<!-- ko -->", /* nodeName: */ "#comment", templateEngine); constructMemoizedTagReplacement(/* dataBindAttributeValue: */ args[1], /* tagToRetain: */ "<!-- ko -->", /* nodeName: */ "#comment", templateEngine)
}); );
}, },
applyMemoizedBindingsToNextSibling: function (bindings, nodeName) { applyMemoizedBindingsToNextSibling: (bindings, nodeName) => {
return ko.memoization.memoize(function (domNode, bindingContext) { return ko.memoization.memoize((domNode, bindingContext) => {
var nodeToBind = domNode.nextSibling; var nodeToBind = domNode.nextSibling;
if (nodeToBind && nodeToBind.nodeName.toLowerCase() === nodeName) { if (nodeToBind && nodeToBind.nodeName.toLowerCase() === nodeName) {
ko.applyBindingAccessorsToNode(nodeToBind, bindings, bindingContext); ko.applyBindingAccessorsToNode(nodeToBind, bindings, bindingContext);

34
vendors/knockout/src/templating/templateSources.js vendored
View file

@ -1,4 +1,4 @@
(function() { (() => {
// A template source represents a read/write way of accessing a template. This is to eliminate the need for template loading/saving // A template source represents a read/write way of accessing a template. This is to eliminate the need for template loading/saving
// logic to be duplicated in every template engine (and means they can all work with anonymous templates, etc.) // logic to be duplicated in every template engine (and means they can all work with anonymous templates, etc.)
// //
@ -54,22 +54,20 @@
if (arguments.length == 0) { if (arguments.length == 0) {
return this.domElement[elemContentsProperty]; return this.domElement[elemContentsProperty];
} else {
var valueToWrite = arguments[0];
if (elemContentsProperty === "innerHTML")
ko.utils.setHtml(this.domElement, valueToWrite);
else
this.domElement[elemContentsProperty] = valueToWrite;
} }
var valueToWrite = arguments[0];
if (elemContentsProperty === "innerHTML")
ko.utils.setHtml(this.domElement, valueToWrite);
else
this.domElement[elemContentsProperty] = valueToWrite;
}; };
var dataDomDataPrefix = ko.utils.domData.nextKey() + "_"; var dataDomDataPrefix = ko.utils.domData.nextKey() + "_";
ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) { ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) {
if (arguments.length === 1) { if (arguments.length === 1) {
return ko.utils.domData.get(this.domElement, dataDomDataPrefix + key); return ko.utils.domData.get(this.domElement, dataDomDataPrefix + key);
} else {
ko.utils.domData.set(this.domElement, dataDomDataPrefix + key, arguments[1]);
} }
ko.utils.domData.set(this.domElement, dataDomDataPrefix + key, arguments[1]);
}; };
var templatesDomDataKey = ko.utils.domData.nextKey(); var templatesDomDataKey = ko.utils.domData.nextKey();
@ -99,13 +97,12 @@
} }
} }
return nodes; return nodes;
} else {
var valueToWrite = arguments[0];
if (this.templateType !== undefined) {
this['text'](""); // clear the text from the node
}
setTemplateDomData(element, {containerData: valueToWrite});
} }
var valueToWrite = arguments[0];
if (this.templateType !== undefined) {
this['text'](""); // clear the text from the node
}
setTemplateDomData(element, {containerData: valueToWrite});
}; };
// ---- ko.templateSources.anonymousTemplate ----- // ---- ko.templateSources.anonymousTemplate -----
@ -115,7 +112,7 @@
ko.templateSources.anonymousTemplate = function(element) { ko.templateSources.anonymousTemplate = function(element) {
this.domElement = element; this.domElement = element;
} };
ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement(); ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement();
ko.templateSources.anonymousTemplate.prototype.constructor = ko.templateSources.anonymousTemplate; ko.templateSources.anonymousTemplate.prototype.constructor = ko.templateSources.anonymousTemplate;
ko.templateSources.anonymousTemplate.prototype['text'] = function(/* valueToWrite */) { ko.templateSources.anonymousTemplate.prototype['text'] = function(/* valueToWrite */) {
@ -124,10 +121,9 @@
if (templateData.textData === undefined && templateData.containerData) if (templateData.textData === undefined && templateData.containerData)
templateData.textData = templateData.containerData.innerHTML; templateData.textData = templateData.containerData.innerHTML;
return templateData.textData; return templateData.textData;
} else {
var valueToWrite = arguments[0];
setTemplateDomData(this.domElement, {textData: valueToWrite});
} }
var valueToWrite = arguments[0];
setTemplateDomData(this.domElement, {textData: valueToWrite});
}; };
ko.exportSymbol('templateSources', ko.templateSources); ko.exportSymbol('templateSources', ko.templateSources);

52
vendors/knockout/src/templating/templating.js vendored
View file

@ -1,10 +1,10 @@
(function () { (function () {
var _templateEngine; var _templateEngine;
ko.setTemplateEngine = function (templateEngine) { ko.setTemplateEngine = templateEngine => {
if ((templateEngine != undefined) && !(templateEngine instanceof ko.templateEngine)) if ((templateEngine != undefined) && !(templateEngine instanceof ko.templateEngine))
throw new Error("templateEngine must inherit from ko.templateEngine"); throw new Error("templateEngine must inherit from ko.templateEngine");
_templateEngine = templateEngine; _templateEngine = templateEngine;
} };
function invokeForEachNodeInContinuousRange(firstNode, lastNode, action) { function invokeForEachNodeInContinuousRange(firstNode, lastNode, action) {
var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode); var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode);
@ -29,7 +29,7 @@
preprocessNode = provider['preprocessNode']; preprocessNode = provider['preprocessNode'];
if (preprocessNode) { if (preprocessNode) {
invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node, nextNodeInRange) { invokeForEachNodeInContinuousRange(firstNode, lastNode, (node, nextNodeInRange) => {
var nodePreviousSibling = node.previousSibling; var nodePreviousSibling = node.previousSibling;
var newNodes = preprocessNode.call(provider, node); var newNodes = preprocessNode.call(provider, node);
if (newNodes) { if (newNodes) {
@ -57,11 +57,11 @@
// Need to applyBindings *before* unmemoziation, because unmemoization might introduce extra nodes (that we don't want to re-bind) // Need to applyBindings *before* unmemoziation, because unmemoization might introduce extra nodes (that we don't want to re-bind)
// whereas a regular applyBindings won't introduce new memoized nodes // whereas a regular applyBindings won't introduce new memoized nodes
invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) { invokeForEachNodeInContinuousRange(firstNode, lastNode, node => {
if (node.nodeType === 1 || node.nodeType === 8) if (node.nodeType === 1 || node.nodeType === 8)
ko.applyBindings(bindingContext, node); ko.applyBindings(bindingContext, node);
}); });
invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) { invokeForEachNodeInContinuousRange(firstNode, lastNode, node => {
if (node.nodeType === 1 || node.nodeType === 8) if (node.nodeType === 1 || node.nodeType === 8)
ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]); ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);
}); });
@ -122,13 +122,9 @@
if (ko.isObservable(template)) { if (ko.isObservable(template)) {
// 1. An observable, with string value // 1. An observable, with string value
return template(); return template();
} else if (typeof template === 'function') {
// 2. A function of (data, context) returning a string
return template(data, context);
} else {
// 3. A string
return template;
} }
// 2. A function of (data, context) returning a string ELSE 3. A string
return (typeof template === 'function') ? template(data, context) : template;
} }
ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) { ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) {
@ -140,11 +136,11 @@
if (targetNodeOrNodeArray) { if (targetNodeOrNodeArray) {
var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray); var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
var whenToDispose = function () { return (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); }; // Passive disposal (on next evaluation) var whenToDispose = () => (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); // Passive disposal (on next evaluation)
var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode; var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode;
return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes
function () { () => {
// Ensure we've got a proper binding context to work with // Ensure we've got a proper binding context to work with
var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext)) var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext))
? dataOrBindingContext ? dataOrBindingContext
@ -163,24 +159,24 @@
); );
} else { } else {
// We don't yet have a DOM node to evaluate, so use a memo and render the template later when there is a DOM node // We don't yet have a DOM node to evaluate, so use a memo and render the template later when there is a DOM node
return ko.memoization.memoize(function (domNode) { return ko.memoization.memoize(domNode =>
ko.renderTemplate(template, dataOrBindingContext, options, domNode, "replaceNode"); ko.renderTemplate(template, dataOrBindingContext, options, domNode, "replaceNode")
}); );
} }
}; };
ko.renderTemplateForEach = function (template, arrayOrObservableArray, options, targetNode, parentBindingContext) { ko.renderTemplateForEach = (template, arrayOrObservableArray, options, targetNode, parentBindingContext) => {
// Since setDomNodeChildrenFromArrayMapping always calls executeTemplateForArrayItem and then // Since setDomNodeChildrenFromArrayMapping always calls executeTemplateForArrayItem and then
// activateBindingsCallback for added items, we can store the binding context in the former to use in the latter. // activateBindingsCallback for added items, we can store the binding context in the former to use in the latter.
var arrayItemContext, asName = options['as']; var arrayItemContext, asName = options['as'];
// This will be called by setDomNodeChildrenFromArrayMapping to get the nodes to add to targetNode // This will be called by setDomNodeChildrenFromArrayMapping to get the nodes to add to targetNode
var executeTemplateForArrayItem = function (arrayValue, index) { var executeTemplateForArrayItem = (arrayValue, index) => {
// Support selecting template as a function of the data being rendered // Support selecting template as a function of the data being rendered
arrayItemContext = parentBindingContext['createChildContext'](arrayValue, { arrayItemContext = parentBindingContext['createChildContext'](arrayValue, {
'as': asName, 'as': asName,
'noChildContext': options['noChildContext'], 'noChildContext': options['noChildContext'],
'extend': function(context) { 'extend': context => {
context['$index'] = index; context['$index'] = index;
if (asName) { if (asName) {
context[asName + "Index"] = index; context[asName + "Index"] = index;
@ -193,7 +189,7 @@
}; };
// This will be called whenever setDomNodeChildrenFromArrayMapping has added nodes to targetNode // This will be called whenever setDomNodeChildrenFromArrayMapping has added nodes to targetNode
var activateBindingsCallback = function(arrayValue, addedNodesArray, index) { var activateBindingsCallback = (arrayValue, addedNodesArray) => {
activateBindingsOnContinuousNodeArray(addedNodesArray, arrayItemContext); activateBindingsOnContinuousNodeArray(addedNodesArray, arrayItemContext);
if (options['afterRender']) if (options['afterRender'])
options['afterRender'](addedNodesArray, arrayValue); options['afterRender'](addedNodesArray, arrayValue);
@ -215,21 +211,21 @@
if (!shouldHideDestroyed && !options['beforeRemove'] && ko.isObservableArray(arrayOrObservableArray)) { if (!shouldHideDestroyed && !options['beforeRemove'] && ko.isObservableArray(arrayOrObservableArray)) {
setDomNodeChildrenFromArrayMapping(arrayOrObservableArray.peek()); setDomNodeChildrenFromArrayMapping(arrayOrObservableArray.peek());
var subscription = arrayOrObservableArray.subscribe(function (changeList) { var subscription = arrayOrObservableArray.subscribe(changeList => {
setDomNodeChildrenFromArrayMapping(arrayOrObservableArray(), changeList); setDomNodeChildrenFromArrayMapping(arrayOrObservableArray(), changeList);
}, null, "arrayChange"); }, null, "arrayChange");
subscription.disposeWhenNodeIsRemoved(targetNode); subscription.disposeWhenNodeIsRemoved(targetNode);
return subscription; return subscription;
} else { } else {
return ko.dependentObservable(function () { return ko.dependentObservable(() => {
var unwrappedArray = ko.utils.unwrapObservable(arrayOrObservableArray) || []; var unwrappedArray = ko.utils.unwrapObservable(arrayOrObservableArray) || [];
if (typeof unwrappedArray.length == "undefined") // Coerce single value into array if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
unwrappedArray = [unwrappedArray]; unwrappedArray = [unwrappedArray];
if (shouldHideDestroyed) { if (shouldHideDestroyed) {
// Filter out any entries marked as destroyed // Filter out any entries marked as destroyed
unwrappedArray = ko.utils.arrayFilter(unwrappedArray, function(item) { unwrappedArray = ko.utils.arrayFilter(unwrappedArray, item => {
return item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']); return item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
}); });
} }
@ -249,7 +245,7 @@
var cleanContainerDomDataKey = ko.utils.domData.nextKey(); var cleanContainerDomDataKey = ko.utils.domData.nextKey();
ko.bindingHandlers['template'] = { ko.bindingHandlers['template'] = {
'init': function(element, valueAccessor) { 'init': (element, valueAccessor) => {
// Support anonymous templates // Support anonymous templates
var bindingValue = ko.utils.unwrapObservable(valueAccessor()); var bindingValue = ko.utils.unwrapObservable(valueAccessor());
if (typeof bindingValue == "string" || 'name' in bindingValue) { if (typeof bindingValue == "string" || 'name' in bindingValue) {
@ -267,7 +263,7 @@
// If the nodes are already attached to a KO-generated container, we reuse that container without moving the // If the nodes are already attached to a KO-generated container, we reuse that container without moving the
// elements to a new one (we check only the first node, as the nodes are always moved together) // elements to a new one (we check only the first node, as the nodes are always moved together)
var container = nodes[0] && nodes[0].parentNode; let container = nodes[0] && nodes[0].parentNode;
if (!container || !ko.utils.domData.get(container, cleanContainerDomDataKey)) { if (!container || !ko.utils.domData.get(container, cleanContainerDomDataKey)) {
container = ko.utils.moveCleanedNodesToContainerElement(nodes); container = ko.utils.moveCleanedNodesToContainerElement(nodes);
ko.utils.domData.set(container, cleanContainerDomDataKey, true); ko.utils.domData.set(container, cleanContainerDomDataKey, true);
@ -278,7 +274,7 @@
// It's an anonymous template - store the element contents, then clear the element // It's an anonymous template - store the element contents, then clear the element
var templateNodes = ko.virtualElements.childNodes(element); var templateNodes = ko.virtualElements.childNodes(element);
if (templateNodes.length > 0) { if (templateNodes.length > 0) {
var container = ko.utils.moveCleanedNodesToContainerElement(templateNodes); // This also removes the nodes from their current parent let container = ko.utils.moveCleanedNodesToContainerElement(templateNodes); // This also removes the nodes from their current parent
new ko.templateSources.anonymousTemplate(element)['nodes'](container); new ko.templateSources.anonymousTemplate(element)['nodes'](container);
} else { } else {
throw new Error("Anonymous template defined, but no template content was provided"); throw new Error("Anonymous template defined, but no template content was provided");
@ -286,7 +282,7 @@
} }
return { 'controlsDescendantBindings': true }; return { 'controlsDescendantBindings': true };
}, },
'update': function (element, valueAccessor, allBindings, viewModel, bindingContext) { 'update': (element, valueAccessor, allBindings, viewModel, bindingContext) => {
var value = valueAccessor(), var value = valueAccessor(),
options = ko.utils.unwrapObservable(value), options = ko.utils.unwrapObservable(value),
shouldDisplay = true, shouldDisplay = true,
@ -336,7 +332,7 @@
}; };
// Anonymous templates can't be rewritten. Give a nice error message if you try to do it. // Anonymous templates can't be rewritten. Give a nice error message if you try to do it.
ko.expressionRewriting.bindingRewriteValidators['template'] = function(bindingValue) { ko.expressionRewriting.bindingRewriteValidators['template'] = bindingValue => {
var parsedBindingValue = ko.expressionRewriting.parseObjectLiteral(bindingValue); var parsedBindingValue = ko.expressionRewriting.parseObjectLiteral(bindingValue);
if ((parsedBindingValue.length == 1) && parsedBindingValue[0]['unknown']) if ((parsedBindingValue.length == 1) && parsedBindingValue[0]['unknown'])

18
vendors/knockout/src/utils.domData.js vendored
View file

@ -3,18 +3,18 @@ ko.utils.domData = new (function () {
var uniqueId = 0; var uniqueId = 0;
var dataStoreKeyExpandoPropertyName = "__ko__" + (Date.now()); var dataStoreKeyExpandoPropertyName = "__ko__" + (Date.now());
var getDataForNode, clear; var
// We considered using WeakMap, but it has a problem in IE 11 and Edge that prevents using // We considered using WeakMap, but it has a problem in IE 11 and Edge that prevents using
// it cross-window, so instead we just store the data directly on the node. // it cross-window, so instead we just store the data directly on the node.
// See https://github.com/knockout/knockout/issues/2141 // See https://github.com/knockout/knockout/issues/2141
getDataForNode = function (node, createIfNotFound) { getDataForNode = (node, createIfNotFound) => {
var dataForNode = node[dataStoreKeyExpandoPropertyName]; var dataForNode = node[dataStoreKeyExpandoPropertyName];
if (!dataForNode && createIfNotFound) { if (!dataForNode && createIfNotFound) {
dataForNode = node[dataStoreKeyExpandoPropertyName] = {}; dataForNode = node[dataStoreKeyExpandoPropertyName] = {};
} }
return dataForNode; return dataForNode;
}; },
clear = function (node) { clear = node => {
if (node[dataStoreKeyExpandoPropertyName]) { if (node[dataStoreKeyExpandoPropertyName]) {
delete node[dataStoreKeyExpandoPropertyName]; delete node[dataStoreKeyExpandoPropertyName];
return true; // Exposing "did clean" flag purely so specs can infer whether things have been cleaned up as intended return true; // Exposing "did clean" flag purely so specs can infer whether things have been cleaned up as intended
@ -23,24 +23,22 @@ ko.utils.domData = new (function () {
}; };
return { return {
get: function (node, key) { get: (node, key) => {
var dataForNode = getDataForNode(node, false); var dataForNode = getDataForNode(node, false);
return dataForNode && dataForNode[key]; return dataForNode && dataForNode[key];
}, },
set: function (node, key, value) { set: (node, key, value) => {
// Make sure we don't actually create a new domData key if we are actually deleting a value // Make sure we don't actually create a new domData key if we are actually deleting a value
var dataForNode = getDataForNode(node, value !== undefined /* createIfNotFound */); var dataForNode = getDataForNode(node, value !== undefined /* createIfNotFound */);
dataForNode && (dataForNode[key] = value); dataForNode && (dataForNode[key] = value);
}, },
getOrSet: function (node, key, value) { getOrSet: (node, key, value) => {
var dataForNode = getDataForNode(node, true /* createIfNotFound */); var dataForNode = getDataForNode(node, true /* createIfNotFound */);
return dataForNode[key] || (dataForNode[key] = value); return dataForNode[key] || (dataForNode[key] = value);
}, },
clear: clear, clear: clear,
nextKey: function () { nextKey: () => (uniqueId++) + dataStoreKeyExpandoPropertyName
return (uniqueId++) + dataStoreKeyExpandoPropertyName;
}
}; };
})(); })();

11
vendors/knockout/src/utils.domManipulation.js vendored
View file

@ -1,4 +1,4 @@
(function () { (() => {
var none = [0, "", ""], var none = [0, "", ""],
table = [1, "<table>", "</table>"], table = [1, "<table>", "</table>"],
tbody = [2, "<table><tbody>", "</tbody></table>"], tbody = [2, "<table><tbody>", "</tbody></table>"],
@ -50,16 +50,15 @@
return ko.utils.makeArray(div.lastChild.childNodes); return ko.utils.makeArray(div.lastChild.childNodes);
} }
ko.utils.parseHtmlFragment = function(html, documentContext) { ko.utils.parseHtmlFragment = (html, documentContext) =>
return simpleHtmlParse(html, documentContext); // ... otherwise, this simple logic will do in most common cases. simpleHtmlParse(html, documentContext); // ... otherwise, this simple logic will do in most common cases.
};
ko.utils.parseHtmlForTemplateNodes = function(html, documentContext) { ko.utils.parseHtmlForTemplateNodes = (html, documentContext) => {
var nodes = ko.utils.parseHtmlFragment(html, documentContext); var nodes = ko.utils.parseHtmlFragment(html, documentContext);
return (nodes.length && nodes[0].parentElement) || ko.utils.moveCleanedNodesToContainerElement(nodes); return (nodes.length && nodes[0].parentElement) || ko.utils.moveCleanedNodesToContainerElement(nodes);
}; };
ko.utils.setHtml = function(node, html) { ko.utils.setHtml = (node, html) => {
ko.utils.emptyDomNode(node); ko.utils.emptyDomNode(node);
// There's no legitimate reason to display a stringified observable without unwrapping it, so we'll unwrap it // There's no legitimate reason to display a stringified observable without unwrapping it, so we'll unwrap it

12
vendors/knockout/src/utils.domNodeDisposal.js vendored
View file

@ -41,20 +41,20 @@ ko.utils.domNodeDisposal = new (function () {
if (!onlyComments || nodeList[i].nodeType === 8) { if (!onlyComments || nodeList[i].nodeType === 8) {
cleanSingleNode(cleanedNodes[cleanedNodes.length] = lastCleanedNode = nodeList[i]); cleanSingleNode(cleanedNodes[cleanedNodes.length] = lastCleanedNode = nodeList[i]);
if (nodeList[i] !== lastCleanedNode) { if (nodeList[i] !== lastCleanedNode) {
while (i-- && ko.utils.arrayIndexOf(cleanedNodes, nodeList[i]) == -1) {} while (i-- && ko.utils.arrayIndexOf(cleanedNodes, nodeList[i]) == -1);
} }
} }
} }
} }
return { return {
addDisposeCallback : function(node, callback) { addDisposeCallback : (node, callback) => {
if (typeof callback != "function") if (typeof callback != "function")
throw new Error("Callback must be a function"); throw new Error("Callback must be a function");
getDisposeCallbacksCollection(node, true).push(callback); getDisposeCallbacksCollection(node, true).push(callback);
}, },
removeDisposeCallback : function(node, callback) { removeDisposeCallback : (node, callback) => {
var callbacksCollection = getDisposeCallbacksCollection(node, false); var callbacksCollection = getDisposeCallbacksCollection(node, false);
if (callbacksCollection) { if (callbacksCollection) {
ko.utils.arrayRemoveItem(callbacksCollection, callback); ko.utils.arrayRemoveItem(callbacksCollection, callback);
@ -63,8 +63,8 @@ ko.utils.domNodeDisposal = new (function () {
} }
}, },
cleanNode : function(node) { cleanNode : node => {
ko.dependencyDetection.ignore(function () { ko.dependencyDetection.ignore(() => {
// First clean this node, where applicable // First clean this node, where applicable
if (cleanableNodeTypes[node.nodeType]) { if (cleanableNodeTypes[node.nodeType]) {
cleanSingleNode(node); cleanSingleNode(node);
@ -79,7 +79,7 @@ ko.utils.domNodeDisposal = new (function () {
return node; return node;
}, },
removeNode : function(node) { removeNode : node => {
ko.cleanNode(node); ko.cleanNode(node);
if (node.parentNode) if (node.parentNode)
node.parentNode.removeChild(node); node.parentNode.removeChild(node);

135
vendors/knockout/src/utils.js vendored
View file

@ -1,20 +1,16 @@
ko.utils = (function () { ko.utils = (() => {
function arrayCall(name, arr, p1, p2) { function arrayCall(name, arr, p1, p2) {
return Array.prototype[name].call(arr, p1, p2); return Array.prototype[name].call(arr, p1, p2);
} }
function objectForEach(obj, action) { function objectForEach(obj, action) {
obj && Object.entries(obj).forEach(function(prop) { obj && Object.entries(obj).forEach(prop => action(prop[0], prop[1]));
action(prop[0], prop[1]);
});
} }
function extend(target, source) { function extend(target, source) {
if (source) { if (source) {
Object.entries(source).forEach(function(prop) { Object.entries(source).forEach(prop => target[prop[0]] = prop[1]);
target[prop[0]] = prop[1];
});
} }
return target; return target;
} }
@ -31,22 +27,20 @@ ko.utils = (function () {
function toggleDomNodeCssClass(node, classNames, shouldHaveClass) { function toggleDomNodeCssClass(node, classNames, shouldHaveClass) {
if (classNames) { if (classNames) {
var addOrRemoveFn = shouldHaveClass ? 'add' : 'remove'; var addOrRemoveFn = shouldHaveClass ? 'add' : 'remove';
classNames.split(/\s+/).forEach(function(className) { classNames.split(/\s+/).forEach(className =>
node.classList[addOrRemoveFn](className); node.classList[addOrRemoveFn](className)
}); );
} }
} }
return { return {
arrayForEach: function (array, action, actionOwner) { arrayForEach: (array, action, actionOwner) =>
arrayCall('forEach', array, action, actionOwner); arrayCall('forEach', array, action, actionOwner),
},
arrayIndexOf: function (array, item) { arrayIndexOf: (array, item) =>
return arrayCall('indexOf', array, item); arrayCall('indexOf', array, item),
},
arrayFirst: function (array, predicate, predicateOwner) { arrayFirst: (array, predicate, predicateOwner) => {
for (var i = 0, j = array.length; i < j; i++) { for (var i = 0, j = array.length; i < j; i++) {
if (predicate.call(predicateOwner, array[i], i, array)) if (predicate.call(predicateOwner, array[i], i, array))
return array[i]; return array[i];
@ -54,7 +48,7 @@ ko.utils = (function () {
return undefined; return undefined;
}, },
arrayRemoveItem: function (array, itemToRemove) { arrayRemoveItem: (array, itemToRemove) => {
var index = ko.utils.arrayIndexOf(array, itemToRemove); var index = ko.utils.arrayIndexOf(array, itemToRemove);
if (index > 0) { if (index > 0) {
array.splice(index, 1); array.splice(index, 1);
@ -64,11 +58,10 @@ ko.utils = (function () {
} }
}, },
arrayFilter: function (array, predicate, predicateOwner) { arrayFilter: (array, predicate, predicateOwner) =>
return array ? arrayCall('filter', array, predicate, predicateOwner) : []; array ? arrayCall('filter', array, predicate, predicateOwner) : [],
},
arrayPushAll: function (array, valuesToPush) { arrayPushAll: (array, valuesToPush) => {
if (valuesToPush instanceof Array) if (valuesToPush instanceof Array)
array.push.apply(array, valuesToPush); array.push.apply(array, valuesToPush);
else else
@ -87,48 +80,45 @@ ko.utils = (function () {
objectForEach: objectForEach, objectForEach: objectForEach,
objectMap: function(source, mapping, mappingOwner) { objectMap: (source, mapping, mappingOwner) => {
if (!source) if (!source)
return source; return source;
var target = {}; var target = {};
Object.entries(source).forEach(function(prop) { Object.entries(source).forEach(prop =>
target[prop[0]] = mapping.call(mappingOwner, prop[1], prop[0], source); target[prop[0]] = mapping.call(mappingOwner, prop[1], prop[0], source)
}); );
return target; return target;
}, },
emptyDomNode: function (domNode) { emptyDomNode: domNode => {
while (domNode.firstChild) { while (domNode.firstChild) {
ko.removeNode(domNode.firstChild); ko.removeNode(domNode.firstChild);
} }
}, },
moveCleanedNodesToContainerElement: function(nodes) { moveCleanedNodesToContainerElement: nodes => {
// Ensure it's a real array, as we're about to reparent the nodes and // Ensure it's a real array, as we're about to reparent the nodes and
// we don't want the underlying collection to change while we're doing that. // we don't want the underlying collection to change while we're doing that.
var nodesArray = ko.utils.makeArray(nodes); var nodesArray = ko.utils.makeArray(nodes);
var templateDocument = (nodesArray[0] && nodesArray[0].ownerDocument) || document; var templateDocument = (nodesArray[0] && nodesArray[0].ownerDocument) || document;
var container = templateDocument.createElement('div'); var container = templateDocument.createElement('div');
nodes.forEach(function(node){container.append(ko.cleanNode(node));}); nodes.forEach(node => container.append(ko.cleanNode(node)));
return container; return container;
}, },
cloneNodes: function (nodesArray, shouldCleanNodes) { cloneNodes: (nodesArray, shouldCleanNodes) =>
return arrayCall('map', nodesArray, shouldCleanNodes arrayCall('map', nodesArray, shouldCleanNodes
? function(node){return ko.cleanNode(node.cloneNode(true));} ? node => ko.cleanNode(node.cloneNode(true))
: function(node){return node.cloneNode(true);} : node => node.cloneNode(true)
); ),
},
setDomNodeChildren: function (domNode, childNodes) { setDomNodeChildren: (domNode, childNodes) => {
ko.utils.emptyDomNode(domNode); ko.utils.emptyDomNode(domNode);
if (childNodes) { childNodes && domNode.append.apply(domNode, childNodes);
domNode.append.apply(domNode, childNodes);
}
}, },
replaceDomNodes: function (nodeToReplaceOrNodeArray, newNodesArray) { replaceDomNodes: (nodeToReplaceOrNodeArray, newNodesArray) => {
var nodesToReplaceArray = nodeToReplaceOrNodeArray.nodeType var nodesToReplaceArray = nodeToReplaceOrNodeArray.nodeType
? [nodeToReplaceOrNodeArray] : nodeToReplaceOrNodeArray; ? [nodeToReplaceOrNodeArray] : nodeToReplaceOrNodeArray;
if (nodesToReplaceArray.length > 0) { if (nodesToReplaceArray.length > 0) {
@ -143,7 +133,7 @@ ko.utils = (function () {
} }
}, },
fixUpContinuousNodeArray: function(continuousNodeArray, parentNode) { fixUpContinuousNodeArray: (continuousNodeArray, parentNode) => {
// Before acting on a set of nodes that were previously outputted by a template function, we have to reconcile // Before acting on a set of nodes that were previously outputted by a template function, we have to reconcile
// them against what is in the DOM right now. It may be that some of the nodes have already been removed, or that // them against what is in the DOM right now. It may be that some of the nodes have already been removed, or that
// new nodes might have been inserted in the middle, for example by a binding. Also, there may previously have been // new nodes might have been inserted in the middle, for example by a binding. Also, there may previously have been
@ -188,40 +178,31 @@ ko.utils = (function () {
return continuousNodeArray; return continuousNodeArray;
}, },
stringTrim: function (string) { stringTrim: string => string === null || string === undefined ? '' :
return string === null || string === undefined ? '' :
string.trim ? string.trim ?
string.trim() : string.trim() :
string.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g, ''); string.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g, ''),
},
stringStartsWith: function (string, startsWith) { stringStartsWith: (string, startsWith) => {
string = string || ""; string = string || "";
if (startsWith.length > string.length) if (startsWith.length > string.length)
return false; return false;
return string.substring(0, startsWith.length) === startsWith; return string.substring(0, startsWith.length) === startsWith;
}, },
domNodeIsContainedBy: function (node, containedByNode) { domNodeIsContainedBy: (node, containedByNode) =>
return containedByNode.contains(node.nodeType !== 1 ? node.parentNode : node); containedByNode.contains(node.nodeType !== 1 ? node.parentNode : node),
},
domNodeIsAttachedToDocument: function (node) { domNodeIsAttachedToDocument: node => ko.utils.domNodeIsContainedBy(node, node.ownerDocument.documentElement),
return ko.utils.domNodeIsContainedBy(node, node.ownerDocument.documentElement);
},
anyDomNodeIsAttachedToDocument: function(nodes) { anyDomNodeIsAttachedToDocument: nodes => !!ko.utils.arrayFirst(nodes, ko.utils.domNodeIsAttachedToDocument),
return !!ko.utils.arrayFirst(nodes, ko.utils.domNodeIsAttachedToDocument);
},
tagNameLower: function(element) { // For HTML elements, tagName will always be upper case; for XHTML elements, it'll be lower case.
// For HTML elements, tagName will always be upper case; for XHTML elements, it'll be lower case. // Possible future optimization: If we know it's an element from an XHTML document (not HTML),
// Possible future optimization: If we know it's an element from an XHTML document (not HTML), // we don't need to do the .toLowerCase() as it will always be lower case anyway.
// we don't need to do the .toLowerCase() as it will always be lower case anyway. tagNameLower: element => element && element.tagName && element.tagName.toLowerCase(),
return element && element.tagName && element.tagName.toLowerCase();
},
catchFunctionErrors: function (delegate) { catchFunctionErrors: delegate => {
return ko['onError'] ? function () { return ko['onError'] ? function () {
try { try {
return delegate.apply(this, arguments); return delegate.apply(this, arguments);
@ -232,41 +213,33 @@ ko.utils = (function () {
} : delegate; } : delegate;
}, },
setTimeout: function (handler, timeout) { setTimeout: (handler, timeout) => setTimeout(ko.utils.catchFunctionErrors(handler), timeout),
return setTimeout(ko.utils.catchFunctionErrors(handler), timeout);
},
deferError: function (error) { deferError: error => setTimeout(() => {
setTimeout(function () {
ko['onError'] && ko['onError'](error); ko['onError'] && ko['onError'](error);
throw error; throw error;
}, 0); }, 0),
},
registerEventHandler: function (element, eventType, handler) { registerEventHandler: (element, eventType, handler) => {
var wrappedHandler = ko.utils.catchFunctionErrors(handler); var wrappedHandler = ko.utils.catchFunctionErrors(handler);
element.addEventListener(eventType, wrappedHandler, false); element.addEventListener(eventType, wrappedHandler, false);
}, },
triggerEvent: function (element, eventType) { triggerEvent: (element, eventType) => {
if (!(element && element.nodeType)) if (!(element && element.nodeType))
throw new Error("element must be a DOM node when calling triggerEvent"); throw new Error("element must be a DOM node when calling triggerEvent");
element.dispatchEvent(new Event(eventType)); element.dispatchEvent(new Event(eventType));
}, },
unwrapObservable: function (value) { unwrapObservable: value => ko.isObservable(value) ? value() : value,
return ko.isObservable(value) ? value() : value;
},
peekObservable: function (value) { peekObservable: value => ko.isObservable(value) ? value.peek() : value,
return ko.isObservable(value) ? value.peek() : value;
},
toggleDomNodeCssClass: toggleDomNodeCssClass, toggleDomNodeCssClass: toggleDomNodeCssClass,
setTextContent: function(element, textContent) { setTextContent: (element, textContent) => {
var value = ko.utils.unwrapObservable(textContent); var value = ko.utils.unwrapObservable(textContent);
if ((value === null) || (value === undefined)) if ((value === null) || (value === undefined))
value = ""; value = "";
@ -282,11 +255,9 @@ ko.utils = (function () {
} }
}, },
makeArray: function(arrayLikeObject) { makeArray: arrayLikeObject => Array['from'](arrayLikeObject)
return Array['from'](arrayLikeObject);
}
} }
}()); })();
ko.exportSymbol('utils', ko.utils); ko.exportSymbol('utils', ko.utils);
ko.exportSymbol('utils.arrayForEach', ko.utils.arrayForEach); ko.exportSymbol('utils.arrayForEach', ko.utils.arrayForEach);

35
vendors/knockout/src/virtualElements.js vendored
View file

@ -1,4 +1,4 @@
(function() { (() => {
// "Virtual elements" is an abstraction on top of the usual DOM API which understands the notion that comment nodes // "Virtual elements" is an abstraction on top of the usual DOM API which understands the notion that comment nodes
// may be used to represent hierarchy (in addition to the DOM's natural hierarchy). // may be used to represent hierarchy (in addition to the DOM's natural hierarchy).
// If you call the DOM-manipulating functions on ko.virtualElements, you will be able to read and write the state // If you call the DOM-manipulating functions on ko.virtualElements, you will be able to read and write the state
@ -52,18 +52,16 @@
if (allVirtualChildren.length > 0) if (allVirtualChildren.length > 0)
return allVirtualChildren[allVirtualChildren.length - 1].nextSibling; return allVirtualChildren[allVirtualChildren.length - 1].nextSibling;
return startComment.nextSibling; return startComment.nextSibling;
} else }
return null; // Must have no matching end comment, and allowUnbalanced is true return null; // Must have no matching end comment, and allowUnbalanced is true
} }
ko.virtualElements = { ko.virtualElements = {
allowedBindings: {}, allowedBindings: {},
childNodes: function(node) { childNodes: node => isStartComment(node) ? getVirtualChildren(node) : node.childNodes,
return isStartComment(node) ? getVirtualChildren(node) : node.childNodes;
},
emptyNode: function(node) { emptyNode: node => {
if (!isStartComment(node)) if (!isStartComment(node))
ko.utils.emptyDomNode(node); ko.utils.emptyDomNode(node);
else { else {
@ -73,7 +71,7 @@
} }
}, },
setDomNodeChildren: function(node, childNodes) { setDomNodeChildren: (node, childNodes) => {
if (!isStartComment(node)) if (!isStartComment(node))
ko.utils.setDomNodeChildren(node, childNodes); ko.utils.setDomNodeChildren(node, childNodes);
else { else {
@ -84,7 +82,7 @@
} }
}, },
prepend: function(containerNode, nodeToPrepend) { prepend: (containerNode, nodeToPrepend) => {
var insertBeforeNode; var insertBeforeNode;
if (isStartComment(containerNode)) { if (isStartComment(containerNode)) {
@ -98,7 +96,7 @@
containerNode.insertBefore(nodeToPrepend, insertBeforeNode); containerNode.insertBefore(nodeToPrepend, insertBeforeNode);
}, },
insertAfter: function(containerNode, nodeToInsert, insertAfterNode) { insertAfter: (containerNode, nodeToInsert, insertAfterNode) => {
if (!insertAfterNode) { if (!insertAfterNode) {
ko.virtualElements.prepend(containerNode, nodeToInsert); ko.virtualElements.prepend(containerNode, nodeToInsert);
} else { } else {
@ -113,20 +111,17 @@
} }
}, },
firstChild: function(node) { firstChild: node => {
if (!isStartComment(node)) { if (!isStartComment(node)) {
if (node.firstChild && isEndComment(node.firstChild)) { if (node.firstChild && isEndComment(node.firstChild)) {
throw new Error("Found invalid end comment, as the first child of " + node); throw new Error("Found invalid end comment, as the first child of " + node);
} }
return node.firstChild; return node.firstChild;
} else if (!node.nextSibling || isEndComment(node.nextSibling)) {
return null;
} else {
return node.nextSibling;
} }
return (!node.nextSibling || isEndComment(node.nextSibling)) ? null : node.nextSibling;
}, },
nextSibling: function(node) { nextSibling: node => {
if (isStartComment(node)) { if (isStartComment(node)) {
node = getMatchingEndComment(node); node = getMatchingEndComment(node);
} }
@ -134,17 +129,15 @@
if (node.nextSibling && isEndComment(node.nextSibling)) { if (node.nextSibling && isEndComment(node.nextSibling)) {
if (isUnmatchedEndComment(node.nextSibling)) { if (isUnmatchedEndComment(node.nextSibling)) {
throw Error("Found end comment without a matching opening comment, as child of " + node); throw Error("Found end comment without a matching opening comment, as child of " + node);
} else {
return null;
} }
} else { return null;
return node.nextSibling;
} }
return node.nextSibling;
}, },
hasBindingValue: isStartComment, hasBindingValue: isStartComment,
virtualNodeBindingValue: function(node) { virtualNodeBindingValue: node => {
var regexMatch = (node.nodeValue).match(startCommentRegex); var regexMatch = (node.nodeValue).match(startCommentRegex);
return regexMatch ? regexMatch[1] : null; return regexMatch ? regexMatch[1] : null;
} }