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Drop unused Knockout functionality

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Especially dropped memoization for improved speed.
This commit is contained in:
djmaze 2020-10-13 14:56:23 +02:00
parent e7975d4f82
commit 1e735bf4a9
30 changed files with 206 additions and 814 deletions
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29
vendors/knockout/src/templating/templating.js vendored
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@ -61,10 +61,6 @@
if (node.nodeType === 1 || node.nodeType === 8)
ko.applyBindings(bindingContext, node);
});
invokeForEachNodeInContinuousRange(firstNode, lastNode, node => {
if (node.nodeType === 1 || node.nodeType === 8)
ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);
});
// Make sure any changes done by applyBindings or unmemoize are reflected in the array
ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
@ -82,7 +78,10 @@
var firstTargetNode = targetNodeOrNodeArray && getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
var templateDocument = (firstTargetNode || template || {}).ownerDocument;
var templateEngineToUse = (options['templateEngine'] || _templateEngine);
ko.templateRewriting.ensureTemplateIsRewritten(template, templateEngineToUse, templateDocument);
if (!templateEngineToUse['isTemplateRewritten'](template, templateDocument)) {
templateEngineToUse['rewriteTemplate'](template, htmlString => htmlString, templateDocument);
}
var renderedNodesArray = templateEngineToUse['renderTemplate'](template, bindingContext, options, templateDocument);
// Loosely check result is an array of DOM nodes
@ -95,10 +94,6 @@
ko.virtualElements.setDomNodeChildren(targetNodeOrNodeArray, renderedNodesArray);
haveAddedNodesToParent = true;
break;
case "replaceNode":
ko.utils.replaceDomNodes(targetNodeOrNodeArray, renderedNodesArray);
haveAddedNodesToParent = true;
break;
case "ignoreTargetNode": break;
default:
throw new Error("Unknown renderMode: " + renderMode);
@ -137,7 +132,6 @@
var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
var whenToDispose = () => (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); // Passive disposal (on next evaluation)
var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode;
return ko.computed( // So the DOM is automatically updated when any dependency changes
() => {
@ -148,20 +142,12 @@
var templateName = resolveTemplateName(template, bindingContext['$data'], bindingContext),
renderedNodesArray = executeTemplate(targetNodeOrNodeArray, renderMode, templateName, bindingContext, options);
if (renderMode == "replaceNode") {
targetNodeOrNodeArray = renderedNodesArray;
firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
}
},
null,
{ disposeWhen: whenToDispose, disposeWhenNodeIsRemoved: activelyDisposeWhenNodeIsRemoved }
{ disposeWhen: whenToDispose, disposeWhenNodeIsRemoved: firstTargetNode }
);
} 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
return ko.memoization.memoize(domNode =>
ko.renderTemplate(template, dataOrBindingContext, options, domNode, "replaceNode")
);
console.log('no targetNodeOrNodeArray');
}
};
@ -343,6 +329,3 @@
ko.virtualElements.allowedBindings['template'] = true;
})();
ko.exportSymbol('setTemplateEngine', ko.setTemplateEngine);
ko.exportSymbol('renderTemplate', ko.renderTemplate);