mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-09 19:39:57 +00:00
f307f00e32
There are two big changes here: Replace the previous "ts-wrapper" mechanism, which we had been using to redefine custom widgets inside their definitions to prevent recursive calls. Now we've got the genesis widget we can instead control recursion through a new "$remappable" attribute that allows the custom widget mechanism to be skipped. We also extend the slot widget to allow a depth to be specified; it then reaches up by the indicated number of transclusion widgets to find the one from which it should retrieve the slot value.
131 lines
3.4 KiB
JavaScript
131 lines
3.4 KiB
JavaScript
/*\
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title: $:/core/modules/utils/parsetree.js
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type: application/javascript
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module-type: utils
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Parse tree utility functions.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Add attribute to parse tree node
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Can be invoked as (node,name,value) or (node,attr)
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*/
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exports.addAttributeToParseTreeNode = function(node,name,value) {
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var attribute = typeof name === "object" ? name : {name: name, type: "string", value: value};
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name = attribute.name;
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node.attributes = node.attributes || {};
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node.orderedAttributes = node.orderedAttributes || [];
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node.attributes[name] = attribute;
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var foundIndex = -1;
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$tw.utils.each(node.orderedAttributes,function(attr,index) {
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if(attr.name === name) {
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foundIndex = index;
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}
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});
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if(foundIndex === -1) {
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node.orderedAttributes.push(attribute);
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} else {
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node.orderedAttributes[foundIndex] = attribute;
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}
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};
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exports.getOrderedAttributesFromParseTreeNode = function(node) {
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if(node.orderedAttributes) {
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return node.orderedAttributes;
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} else {
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var attributes = [];
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$tw.utils.each(node.attributes,function(attribute) {
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attributes.push(attribute);
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});
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return attributes.sort(function(a,b) {
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return a.name < b.name ? -1 : (a.name > b.name ? 1 : 0);
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});
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}
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};
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exports.getAttributeValueFromParseTreeNode = function(node,name,defaultValue) {
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if(node.attributes && node.attributes[name] && node.attributes[name].value !== undefined) {
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return node.attributes[name].value;
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}
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return defaultValue;
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};
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exports.addClassToParseTreeNode = function(node,classString) {
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var classes = [],
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attribute;
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node.attributes = node.attributes || {};
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attribute = node.attributes["class"];
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if(!attribute) {
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// If the class attribute does not exist, we must create it first.
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attribute = {name: "class", type: "string", value: ""};
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node.attributes["class"] = attribute;
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if(node.orderedAttributes) {
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// If there are orderedAttributes, we've got to add them there too.
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node.orderedAttributes.push(attribute);
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}
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}
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if(attribute.type === "string") {
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if(attribute.value !== "") {
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classes = attribute.value.split(" ");
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}
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if(classString !== "") {
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$tw.utils.pushTop(classes,classString.split(" "));
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}
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attribute.value = classes.join(" ");
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}
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};
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exports.addStyleToParseTreeNode = function(node,name,value) {
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var attribute;
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node.attributes = node.attributes || {};
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attribute = node.attributes.style;
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if(!attribute) {
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attribute = {name: "style", type: "string", value: ""};
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node.attributes.style = attribute;
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if(node.orderedAttributes) {
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// If there are orderedAttributes, we've got to add them there too.
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node.orderedAttributes.push(attribute);
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}
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}
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if(attribute.type === "string") {
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attribute.value += name + ":" + value + ";";
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}
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};
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exports.findParseTreeNode = function(nodeArray,search) {
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for(var t=0; t<nodeArray.length; t++) {
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if(nodeArray[t].type === search.type && nodeArray[t].tag === search.tag) {
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return nodeArray[t];
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}
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}
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return undefined;
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};
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/*
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Helper to get the text of a parse tree node or array of nodes
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*/
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exports.getParseTreeText = function getParseTreeText(tree) {
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var output = [];
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if($tw.utils.isArray(tree)) {
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$tw.utils.each(tree,function(node) {
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output.push(getParseTreeText(node));
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});
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} else {
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if(tree.type === "text") {
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output.push(tree.text);
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}
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if(tree.children) {
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return getParseTreeText(tree.children);
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}
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}
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return output.join("");
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};
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})();
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