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Dropped more unused knockoutjs code

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djmaze 2020-10-29 11:15:04 +01:00
parent b79d9de1a0
commit 1d57a62ddd
14 changed files with 408 additions and 635 deletions
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19
vendors/knockout/src/binding/bindingAttributeSyntax.js vendored
View file

@ -6,18 +6,6 @@
ko.bindingHandlers = {};
// The following element types will not be recursed into during binding.
var bindingDoesNotRecurseIntoElementTypes = {
// Don't want bindings that operate on text nodes to mutate <script> and <textarea> contents,
// because it's unexpected and a potential XSS issue.
// Also bindings should not operate on <template> elements since this breaks in Internet Explorer
// and because such elements' contents are always intended to be bound in a different context
// from where they appear in the document.
'script': true,
'textarea': true,
'template': true
};
// Use an overridable method for retrieving binding handlers so that plugins may support dynamically created handlers
ko['getBindingHandler'] = bindingKey => ko.bindingHandlers[bindingKey];
@ -326,7 +314,12 @@
if (shouldApplyBindings)
bindingContextForDescendants = applyBindingsToNodeInternal(nodeVerified, null, bindingContext)['bindingContextForDescendants'];
if (bindingContextForDescendants && !bindingDoesNotRecurseIntoElementTypes[ko.utils.tagNameLower(nodeVerified)]) {
// Don't want bindings that operate on text nodes to mutate <script> and <textarea> contents,
// because it's unexpected and a potential XSS issue.
// Also bindings should not operate on <template> elements since this breaks in Internet Explorer
// and because such elements' contents are always intended to be bound in a different context
// from where they appear in the document.
if (bindingContextForDescendants && nodeVerified.matches && !nodeVerified.matches('SCRIPT,TEXTAREA,TEMPLATE')) {
applyBindingsToDescendantsInternal(bindingContextForDescendants, nodeVerified);
}
}

13
vendors/knockout/src/binding/bindingProvider.js vendored
View file

@ -9,8 +9,7 @@
'nodeHasBindings': node => {
switch (node.nodeType) {
case 1: // Element
return node.getAttribute(defaultBindingAttributeName) != null
|| ko.components['getComponentNameForNode'](node);
return node.getAttribute(defaultBindingAttributeName) != null;
case 8: // Comment node
return ko.virtualElements.hasBindingValue(node);
default: return false;
@ -18,15 +17,13 @@
},
'getBindings': function(node, bindingContext) {
var bindingsString = this['getBindingsString'](node, bindingContext),
parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node) : null;
return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ false);
var bindingsString = this['getBindingsString'](node, bindingContext);
return bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node) : null;
},
'getBindingAccessors': function(node, bindingContext) {
var bindingsString = this['getBindingsString'](node, bindingContext),
parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node, { 'valueAccessors': true }) : null;
return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ true);
var bindingsString = this['getBindingsString'](node, bindingContext);
return bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node, { 'valueAccessors': true }) : null;
},
// The following function is only used internally by this default provider.

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

@ -1,4 +1,11 @@
var classesWrittenByBindingKey = '__ko__cssValue';
var classesWrittenByBindingKey = '__ko__cssValue',
toggleClasses = (node, classNames, force) => {
if (classNames) {
classNames.split(/\s+/).forEach(className =>
node.classList.toggle(className, force)
);
}
};
ko.bindingHandlers['css'] = {
'update': (element, valueAccessor) => {
@ -6,13 +13,13 @@ ko.bindingHandlers['css'] = {
if (value !== null && typeof value == "object") {
ko.utils.objectForEach(value, (className, shouldHaveClass) => {
shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass);
ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);
toggleClasses(element, className, !!shouldHaveClass);
});
} else {
value = ko.utils.stringTrim(value);
ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false);
toggleClasses(element, element[classesWrittenByBindingKey], false);
element[classesWrittenByBindingKey] = value;
ko.utils.toggleDomNodeCssClass(element, value, true);
toggleClasses(element, value, true);
}
}
};

3
vendors/knockout/src/binding/defaultBindings/foreach.js vendored
View file

@ -4,7 +4,8 @@ ko.bindingHandlers['foreach'] = {
makeTemplateValueAccessor: valueAccessor => {
return () => {
var modelValue = valueAccessor(),
unwrappedValue = ko.utils.peekObservable(modelValue); // Unwrap without setting a dependency here
// Unwrap without setting a dependency here
unwrappedValue = ko.isObservable(modelValue) ? modelValue.peek() : modelValue;
// If unwrappedValue is the array, pass in the wrapped value on its own
// The value will be unwrapped and tracked within the template binding

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

@ -1,7 +1,7 @@
var captionPlaceholder = {};
ko.bindingHandlers['options'] = {
'init': element => {
if (ko.utils.tagNameLower(element) !== "select")
if (!element.matches("SELECT"))
throw new Error("options binding applies only to SELECT elements");
// Remove all existing <option>s.

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

@ -1,7 +1,7 @@
ko.bindingHandlers['value'] = {
'init': (element, valueAccessor, allBindings) => {
var tagName = ko.utils.tagNameLower(element),
isInputElement = tagName == "input";
var isSelectElement = element.matches("SELECT"),
isInputElement = element.matches("INPUT");
// If the value binding is placed on a radio/checkbox, then just pass through to checkedValue and quit
if (isInputElement && (element.type == "checkbox" || element.type == "radio")) {
@ -79,7 +79,7 @@ ko.bindingHandlers['value'] = {
var valueHasChanged = newValue !== elementValue;
if (valueHasChanged || elementValue === undefined) {
if (tagName === "select") {
if (isSelectElement) {
var allowUnset = allBindings.get('valueAllowUnset');
ko.selectExtensions.writeValue(element, newValue, allowUnset);
if (!allowUnset && newValue !== ko.selectExtensions.readValue(element)) {
@ -94,7 +94,7 @@ ko.bindingHandlers['value'] = {
};
}
if (tagName === "select") {
if (isSelectElement) {
var updateFromModelComputed;
ko.bindingEvent.subscribe(element, ko.bindingEvent.childrenComplete, () => {
if (!updateFromModelComputed) {

12
vendors/knockout/src/binding/selectExtensions.js vendored
View file

@ -6,12 +6,12 @@
// that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns.
ko.selectExtensions = {
readValue : element => {
switch (ko.utils.tagNameLower(element)) {
case 'option':
switch (element.nodeName) {
case 'OPTION':
if (element[hasDomDataExpandoProperty] === true)
return ko.utils.domData.get(element, ko.bindingHandlers.options.optionValueDomDataKey);
return element.value;
case 'select':
case 'SELECT':
return element.selectedIndex >= 0 ? ko.selectExtensions.readValue(element.options[element.selectedIndex]) : undefined;
default:
return element.value;
@ -19,8 +19,8 @@
},
writeValue: (element, value, allowUnset) => {
switch (ko.utils.tagNameLower(element)) {
case 'option':
switch (element.nodeName) {
case 'OPTION':
if (typeof value === "string") {
ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, undefined);
delete element[hasDomDataExpandoProperty];
@ -35,7 +35,7 @@
element.value = typeof value === "number" ? value : "";
}
break;
case 'select':
case 'SELECT':
if (value === "" || value === null) // A blank string or null value will select the caption
value = undefined;
var selection = -1;