1670 lines
51 KiB
JavaScript
Executable File
1670 lines
51 KiB
JavaScript
Executable File
/*\
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title: $:/core/modules/wiki.js
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type: application/javascript
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module-type: wikimethod
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Extension methods for the $tw.Wiki object
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Adds the following properties to the wiki object:
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* `eventListeners` is a hashmap by type of arrays of listener functions
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* `changedTiddlers` is a hashmap describing changes to named tiddlers since wiki change events were last dispatched. Each entry is a hashmap containing two fields:
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modified: true/false
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deleted: true/false
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* `changeCount` is a hashmap by tiddler title containing a numerical index that starts at zero and is incremented each time a tiddler is created changed or deleted
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* `caches` is a hashmap by tiddler title containing a further hashmap of named cache objects. Caches are automatically cleared when a tiddler is modified or deleted
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* `globalCache` is a hashmap by cache name of cache objects that are cleared whenever any tiddler change occurs
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var widget = require("$:/core/modules/widgets/widget.js");
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var USER_NAME_TITLE = "$:/status/UserName",
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TIMESTAMP_DISABLE_TITLE = "$:/config/TimestampDisable";
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/*
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Add available indexers to this wiki
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*/
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exports.addIndexersToWiki = function() {
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var self = this;
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$tw.utils.each($tw.modules.applyMethods("indexer"),function(Indexer,name) {
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self.addIndexer(new Indexer(self),name);
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});
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};
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/*
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Get the value of a text reference. Text references can have any of these forms:
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<tiddlertitle>
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<tiddlertitle>!!<fieldname>
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!!<fieldname> - specifies a field of the current tiddlers
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<tiddlertitle>##<index>
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*/
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exports.getTextReference = function(textRef,defaultText,currTiddlerTitle) {
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var tr = $tw.utils.parseTextReference(textRef),
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title = tr.title || currTiddlerTitle;
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if(tr.field) {
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var tiddler = this.getTiddler(title);
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if(tr.field === "title") { // Special case so we can return the title of a non-existent tiddler
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return title || defaultText;
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} else if(tiddler && $tw.utils.hop(tiddler.fields,tr.field)) {
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return tiddler.getFieldString(tr.field);
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} else {
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return defaultText;
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}
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} else if(tr.index) {
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return this.extractTiddlerDataItem(title,tr.index,defaultText);
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} else {
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return this.getTiddlerText(title,defaultText);
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}
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};
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exports.setTextReference = function(textRef,value,currTiddlerTitle) {
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var tr = $tw.utils.parseTextReference(textRef),
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title = tr.title || currTiddlerTitle;
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this.setText(title,tr.field,tr.index,value);
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};
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exports.setText = function(title,field,index,value,options) {
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options = options || {};
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var creationFields = options.suppressTimestamp ? {} : this.getCreationFields(),
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modificationFields = options.suppressTimestamp ? {} : this.getModificationFields();
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// Check if it is a reference to a tiddler field
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if(index) {
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var data = this.getTiddlerData(title,Object.create(null));
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if(value !== undefined) {
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data[index] = value;
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} else {
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delete data[index];
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}
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this.setTiddlerData(title,data,{},{suppressTimestamp: options.suppressTimestamp});
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} else {
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var tiddler = this.getTiddler(title),
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fields = {title: title};
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fields[field || "text"] = value;
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this.addTiddler(new $tw.Tiddler(creationFields,tiddler,fields,modificationFields));
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}
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};
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exports.deleteTextReference = function(textRef,currTiddlerTitle) {
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var tr = $tw.utils.parseTextReference(textRef),
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title,tiddler,fields;
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// Check if it is a reference to a tiddler
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if(tr.title && !tr.field) {
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this.deleteTiddler(tr.title);
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// Else check for a field reference
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} else if(tr.field) {
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title = tr.title || currTiddlerTitle;
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tiddler = this.getTiddler(title);
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if(tiddler && $tw.utils.hop(tiddler.fields,tr.field)) {
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fields = Object.create(null);
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fields[tr.field] = undefined;
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this.addTiddler(new $tw.Tiddler(tiddler,fields,this.getModificationFields()));
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}
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}
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};
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exports.addEventListener = function(type,listener) {
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this.eventListeners = this.eventListeners || {};
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this.eventListeners[type] = this.eventListeners[type] || [];
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this.eventListeners[type].push(listener);
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};
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exports.removeEventListener = function(type,listener) {
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var listeners = this.eventListeners[type];
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if(listeners) {
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var p = listeners.indexOf(listener);
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if(p !== -1) {
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listeners.splice(p,1);
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}
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}
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};
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exports.dispatchEvent = function(type /*, args */) {
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var args = Array.prototype.slice.call(arguments,1),
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listeners = this.eventListeners[type];
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if(listeners) {
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for(var p=0; p<listeners.length; p++) {
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var listener = listeners[p];
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listener.apply(listener,args);
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}
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}
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};
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/*
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Causes a tiddler to be marked as changed, incrementing the change count, and triggers event handlers.
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This method should be called after the changes it describes have been made to the wiki.tiddlers[] array.
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title: Title of tiddler
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isDeleted: defaults to false (meaning the tiddler has been created or modified),
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true if the tiddler has been deleted
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*/
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exports.enqueueTiddlerEvent = function(title,isDeleted) {
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// Record the touch in the list of changed tiddlers
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this.changedTiddlers = this.changedTiddlers || Object.create(null);
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this.changedTiddlers[title] = this.changedTiddlers[title] || Object.create(null);
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this.changedTiddlers[title][isDeleted ? "deleted" : "modified"] = true;
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// Increment the change count
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this.changeCount = this.changeCount || Object.create(null);
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if($tw.utils.hop(this.changeCount,title)) {
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this.changeCount[title]++;
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} else {
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this.changeCount[title] = 1;
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}
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// Trigger events
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this.eventListeners = this.eventListeners || {};
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if(!this.eventsTriggered) {
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var self = this;
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$tw.utils.nextTick(function() {
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var changes = self.changedTiddlers;
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self.changedTiddlers = Object.create(null);
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self.eventsTriggered = false;
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if($tw.utils.count(changes) > 0) {
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self.dispatchEvent("change",changes);
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}
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});
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this.eventsTriggered = true;
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}
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};
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exports.getSizeOfTiddlerEventQueue = function() {
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return $tw.utils.count(this.changedTiddlers);
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};
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exports.clearTiddlerEventQueue = function() {
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this.changedTiddlers = Object.create(null);
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this.changeCount = Object.create(null);
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};
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exports.getChangeCount = function(title) {
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this.changeCount = this.changeCount || Object.create(null);
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if($tw.utils.hop(this.changeCount,title)) {
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return this.changeCount[title];
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} else {
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return 0;
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}
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};
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/*
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Generate an unused title from the specified base
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options.prefix must be a string
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*/
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exports.generateNewTitle = function(baseTitle,options) {
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options = options || {};
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var c = 0,
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title = baseTitle,
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template = options.template,
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prefix = (typeof(options.prefix) === "string") ? options.prefix : " ";
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if (template) {
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// "count" is important to avoid an endless loop in while(...)!!
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template = (/\$count:?(\d+)?\$/i.test(template)) ? template : template + "$count$";
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title = $tw.utils.formatTitleString(template,{"base":baseTitle,"separator":prefix,"counter":c});
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while(this.tiddlerExists(title) || this.isShadowTiddler(title) || this.findDraft(title)) {
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title = $tw.utils.formatTitleString(template,{"base":baseTitle,"separator":prefix,"counter":(++c)});
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}
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} else {
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while(this.tiddlerExists(title) || this.isShadowTiddler(title) || this.findDraft(title)) {
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title = baseTitle + prefix + (++c);
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}
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}
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return title;
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};
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exports.isSystemTiddler = function(title) {
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return title && title.indexOf("$:/") === 0;
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};
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exports.isTemporaryTiddler = function(title) {
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return title && title.indexOf("$:/temp/") === 0;
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};
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exports.isVolatileTiddler = function(title) {
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return title && title.indexOf("$:/temp/volatile/") === 0;
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};
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exports.isImageTiddler = function(title) {
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var tiddler = this.getTiddler(title);
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if(tiddler) {
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var contentTypeInfo = $tw.config.contentTypeInfo[tiddler.fields.type || "text/vnd.tiddlywiki"];
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return !!contentTypeInfo && contentTypeInfo.flags.indexOf("image") !== -1;
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} else {
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return null;
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}
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};
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exports.isBinaryTiddler = function(title) {
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var tiddler = this.getTiddler(title);
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if(tiddler) {
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var contentTypeInfo = $tw.config.contentTypeInfo[tiddler.fields.type || "text/vnd.tiddlywiki"];
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return !!contentTypeInfo && contentTypeInfo.encoding === "base64";
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} else {
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return null;
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}
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};
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/*
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Like addTiddler() except it will silently reject any plugin tiddlers that are older than the currently loaded version. Returns true if the tiddler was imported
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*/
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exports.importTiddler = function(tiddler) {
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var existingTiddler = this.getTiddler(tiddler.fields.title);
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// Check if we're dealing with a plugin
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if(tiddler && tiddler.hasField("plugin-type") && tiddler.hasField("version") && existingTiddler && existingTiddler.hasField("plugin-type") && existingTiddler.hasField("version")) {
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// Reject the incoming plugin if it is older
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if(!$tw.utils.checkVersions(tiddler.fields.version,existingTiddler.fields.version)) {
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return false;
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}
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}
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// Fall through to adding the tiddler
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this.addTiddler(tiddler);
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return true;
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};
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/*
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Return a hashmap of the fields that should be set when a tiddler is created
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*/
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exports.getCreationFields = function() {
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if(this.getTiddlerText(TIMESTAMP_DISABLE_TITLE,"").toLowerCase() !== "yes") {
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var fields = {
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created: new Date()
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},
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creator = this.getTiddlerText(USER_NAME_TITLE);
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if(creator) {
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fields.creator = creator;
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}
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return fields;
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} else {
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return {};
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}
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};
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/*
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Return a hashmap of the fields that should be set when a tiddler is modified
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*/
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exports.getModificationFields = function() {
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if(this.getTiddlerText(TIMESTAMP_DISABLE_TITLE,"").toLowerCase() !== "yes") {
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var fields = Object.create(null),
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modifier = this.getTiddlerText(USER_NAME_TITLE);
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fields.modified = new Date();
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if(modifier) {
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fields.modifier = modifier;
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}
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return fields;
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} else {
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return {};
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}
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};
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/*
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Return a sorted array of tiddler titles. Options include:
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sortField: field to sort by
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excludeTag: tag to exclude
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includeSystem: whether to include system tiddlers (defaults to false)
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*/
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exports.getTiddlers = function(options) {
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options = options || Object.create(null);
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var self = this,
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sortField = options.sortField || "title",
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tiddlers = [], t, titles = [];
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this.each(function(tiddler,title) {
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if(options.includeSystem || !self.isSystemTiddler(title)) {
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if(!options.excludeTag || !tiddler.hasTag(options.excludeTag)) {
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tiddlers.push(tiddler);
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}
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}
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});
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tiddlers.sort(function(a,b) {
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var aa = a.fields[sortField].toLowerCase() || "",
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bb = b.fields[sortField].toLowerCase() || "";
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if(aa < bb) {
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return -1;
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} else {
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if(aa > bb) {
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return 1;
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} else {
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return 0;
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}
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}
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});
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for(t=0; t<tiddlers.length; t++) {
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titles.push(tiddlers[t].fields.title);
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}
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return titles;
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};
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exports.countTiddlers = function(excludeTag) {
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var tiddlers = this.getTiddlers({excludeTag: excludeTag});
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return $tw.utils.count(tiddlers);
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};
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/*
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Returns a function iterator(callback) that iterates through the specified titles, and invokes the callback with callback(tiddler,title)
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*/
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exports.makeTiddlerIterator = function(titles) {
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var self = this;
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if(!$tw.utils.isArray(titles)) {
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titles = Object.keys(titles);
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} else {
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titles = titles.slice(0);
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}
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return function(callback) {
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titles.forEach(function(title) {
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callback(self.getTiddler(title),title);
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});
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};
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};
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/*
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Sort an array of tiddler titles by a specified field
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titles: array of titles (sorted in place)
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sortField: name of field to sort by
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isDescending: true if the sort should be descending
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isCaseSensitive: true if the sort should consider upper and lower case letters to be different
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*/
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exports.sortTiddlers = function(titles,sortField,isDescending,isCaseSensitive,isNumeric,isAlphaNumeric) {
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var self = this;
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if(sortField === "title") {
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if(!isNumeric && !isAlphaNumeric) {
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if(isCaseSensitive) {
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if(isDescending) {
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titles.sort(function(a,b) {
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return b.localeCompare(a);
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});
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} else {
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titles.sort(function(a,b) {
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return a.localeCompare(b);
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});
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}
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} else {
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if(isDescending) {
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titles.sort(function(a,b) {
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return b.toLowerCase().localeCompare(a.toLowerCase());
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});
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} else {
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titles.sort(function(a,b) {
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return a.toLowerCase().localeCompare(b.toLowerCase());
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});
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}
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}
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} else {
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titles.sort(function(a,b) {
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var x,y;
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if(isNumeric) {
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x = Number(a);
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y = Number(b);
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if(isNaN(x)) {
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if(isNaN(y)) {
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// If neither value is a number then fall through to a textual comparison
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} else {
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return isDescending ? -1 : 1;
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}
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} else {
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if(isNaN(y)) {
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return isDescending ? 1 : -1;
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} else {
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return isDescending ? y - x : x - y;
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}
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}
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}
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if(isAlphaNumeric) {
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return isDescending ? b.localeCompare(a,undefined,{numeric: true,sensitivity: "base"}) : a.localeCompare(b,undefined,{numeric: true,sensitivity: "base"});
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}
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if(!isCaseSensitive) {
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a = a.toLowerCase();
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b = b.toLowerCase();
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}
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return isDescending ? b.localeCompare(a) : a.localeCompare(b);
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});
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}
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} else {
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titles.sort(function(a,b) {
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var x,y;
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if(sortField !== "title") {
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var tiddlerA = self.getTiddler(a),
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tiddlerB = self.getTiddler(b);
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if(tiddlerA) {
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a = tiddlerA.fields[sortField] || "";
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} else {
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a = "";
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}
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if(tiddlerB) {
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b = tiddlerB.fields[sortField] || "";
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} else {
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b = "";
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}
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}
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if(isNumeric) {
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x = Number(a);
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y = Number(b);
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if(isNaN(x)) {
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if(isNaN(y)) {
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// If neither value is a number then fall through to a textual comparison
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} else {
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return isDescending ? -1 : 1;
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}
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} else {
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if(isNaN(y)) {
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return isDescending ? 1 : -1;
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} else {
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return isDescending ? y - x : x - y;
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}
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}
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}
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if(Object.prototype.toString.call(a) === "[object Date]" && Object.prototype.toString.call(b) === "[object Date]") {
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return isDescending ? b - a : a - b;
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}
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a = String(a);
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b = String(b);
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if(isAlphaNumeric) {
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return isDescending ? b.localeCompare(a,undefined,{numeric: true,sensitivity: "base"}) : a.localeCompare(b,undefined,{numeric: true,sensitivity: "base"});
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}
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if(!isCaseSensitive) {
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a = a.toLowerCase();
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b = b.toLowerCase();
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}
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return isDescending ? b.localeCompare(a) : a.localeCompare(b);
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});
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}
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};
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/*
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For every tiddler invoke a callback(title,tiddler) with `this` set to the wiki object. Options include:
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sortField: field to sort by
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excludeTag: tag to exclude
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includeSystem: whether to include system tiddlers (defaults to false)
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*/
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exports.forEachTiddler = function(/* [options,]callback */) {
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var arg = 0,
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options = arguments.length >= 2 ? arguments[arg++] : {},
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callback = arguments[arg++],
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titles = this.getTiddlers(options),
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t, tiddler;
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for(t=0; t<titles.length; t++) {
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tiddler = this.getTiddler(titles[t]);
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if(tiddler) {
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callback.call(this,tiddler.fields.title,tiddler);
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}
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}
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};
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/*
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Return an array of tiddler titles that are directly linked within the given parse tree
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*/
|
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exports.extractLinks = function(parseTreeRoot) {
|
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// Count up the links
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var links = [],
|
|
checkParseTree = function(parseTree) {
|
|
for(var t=0; t<parseTree.length; t++) {
|
|
var parseTreeNode = parseTree[t];
|
|
if(parseTreeNode.type === "link" && parseTreeNode.attributes.to && parseTreeNode.attributes.to.type === "string") {
|
|
var value = parseTreeNode.attributes.to.value;
|
|
if(links.indexOf(value) === -1) {
|
|
links.push(value);
|
|
}
|
|
}
|
|
if(parseTreeNode.children) {
|
|
checkParseTree(parseTreeNode.children);
|
|
}
|
|
}
|
|
};
|
|
checkParseTree(parseTreeRoot);
|
|
return links;
|
|
};
|
|
|
|
/*
|
|
Return an array of tiddler titles that are directly linked from the specified tiddler
|
|
*/
|
|
exports.getTiddlerLinks = function(title) {
|
|
var self = this;
|
|
// We'll cache the links so they only get computed if the tiddler changes
|
|
return this.getCacheForTiddler(title,"links",function() {
|
|
// Parse the tiddler
|
|
var parser = self.parseTiddler(title);
|
|
if(parser) {
|
|
return self.extractLinks(parser.tree);
|
|
}
|
|
return [];
|
|
});
|
|
};
|
|
|
|
/*
|
|
Return an array of tiddler titles that link to the specified tiddler
|
|
*/
|
|
exports.getTiddlerBacklinks = function(targetTitle) {
|
|
var self = this,
|
|
backlinksIndexer = this.getIndexer("BacklinksIndexer"),
|
|
backlinks = backlinksIndexer && backlinksIndexer.lookup(targetTitle);
|
|
|
|
if(!backlinks) {
|
|
backlinks = [];
|
|
this.forEachTiddler(function(title,tiddler) {
|
|
var links = self.getTiddlerLinks(title);
|
|
if(links.indexOf(targetTitle) !== -1) {
|
|
backlinks.push(title);
|
|
}
|
|
});
|
|
}
|
|
return backlinks;
|
|
};
|
|
|
|
/*
|
|
Return a hashmap of tiddler titles that are referenced but not defined. Each value is the number of times the missing tiddler is referenced
|
|
*/
|
|
exports.getMissingTitles = function() {
|
|
var self = this,
|
|
missing = [];
|
|
// We should cache the missing tiddler list, even if we recreate it every time any tiddler is modified
|
|
this.forEachTiddler(function(title,tiddler) {
|
|
var links = self.getTiddlerLinks(title);
|
|
$tw.utils.each(links,function(link) {
|
|
if((!self.tiddlerExists(link) && !self.isShadowTiddler(link)) && missing.indexOf(link) === -1) {
|
|
missing.push(link);
|
|
}
|
|
});
|
|
});
|
|
return missing;
|
|
};
|
|
|
|
exports.getOrphanTitles = function() {
|
|
var self = this,
|
|
orphans = this.getTiddlers();
|
|
this.forEachTiddler(function(title,tiddler) {
|
|
var links = self.getTiddlerLinks(title);
|
|
$tw.utils.each(links,function(link) {
|
|
var p = orphans.indexOf(link);
|
|
if(p !== -1) {
|
|
orphans.splice(p,1);
|
|
}
|
|
});
|
|
});
|
|
return orphans; // Todo
|
|
};
|
|
|
|
/*
|
|
Retrieves a list of the tiddler titles that are tagged with a given tag
|
|
*/
|
|
exports.getTiddlersWithTag = function(tag) {
|
|
// Try to use the indexer
|
|
var self = this,
|
|
tagIndexer = this.getIndexer("TagIndexer"),
|
|
results = tagIndexer && tagIndexer.subIndexers[3].lookup(tag);
|
|
if(!results) {
|
|
// If not available, perform a manual scan
|
|
results = this.getGlobalCache("taglist-" + tag,function() {
|
|
var tagmap = self.getTagMap();
|
|
return self.sortByList(tagmap[tag],tag);
|
|
});
|
|
}
|
|
return results;
|
|
};
|
|
|
|
/*
|
|
Get a hashmap by tag of arrays of tiddler titles
|
|
*/
|
|
exports.getTagMap = function() {
|
|
var self = this;
|
|
return this.getGlobalCache("tagmap",function() {
|
|
var tags = Object.create(null),
|
|
storeTags = function(tagArray,title) {
|
|
if(tagArray) {
|
|
for(var index=0; index<tagArray.length; index++) {
|
|
var tag = tagArray[index];
|
|
if($tw.utils.hop(tags,tag)) {
|
|
tags[tag].push(title);
|
|
} else {
|
|
tags[tag] = [title];
|
|
}
|
|
}
|
|
}
|
|
},
|
|
title, tiddler;
|
|
// Collect up all the tags
|
|
self.eachShadow(function(tiddler,title) {
|
|
if(!self.tiddlerExists(title)) {
|
|
tiddler = self.getTiddler(title);
|
|
storeTags(tiddler.fields.tags,title);
|
|
}
|
|
});
|
|
self.each(function(tiddler,title) {
|
|
storeTags(tiddler.fields.tags,title);
|
|
});
|
|
return tags;
|
|
});
|
|
};
|
|
|
|
/*
|
|
Lookup a given tiddler and return a list of all the tiddlers that include it in the specified list field
|
|
*/
|
|
exports.findListingsOfTiddler = function(targetTitle,fieldName) {
|
|
fieldName = fieldName || "list";
|
|
var wiki = this;
|
|
var listings = this.getGlobalCache("listings-" + fieldName,function() {
|
|
var listings = Object.create(null);
|
|
wiki.each(function(tiddler,title) {
|
|
var list = $tw.utils.parseStringArray(tiddler.fields[fieldName]);
|
|
if(list) {
|
|
for(var i = 0; i < list.length; i++) {
|
|
var listItem = list[i],
|
|
listing = listings[listItem] || [];
|
|
if (listing.indexOf(title) === -1) {
|
|
listing.push(title);
|
|
}
|
|
listings[listItem] = listing;
|
|
}
|
|
}
|
|
});
|
|
return listings;
|
|
});
|
|
return listings[targetTitle] || [];
|
|
};
|
|
|
|
/*
|
|
Sorts an array of tiddler titles according to an ordered list
|
|
*/
|
|
exports.sortByList = function(array,listTitle) {
|
|
var self = this,
|
|
replacedTitles = Object.create(null);
|
|
// Given a title, this function will place it in the correct location
|
|
// within titles.
|
|
function moveItemInList(title) {
|
|
if(!$tw.utils.hop(replacedTitles, title)) {
|
|
replacedTitles[title] = true;
|
|
var newPos = -1,
|
|
tiddler = self.getTiddler(title);
|
|
if(tiddler) {
|
|
var beforeTitle = tiddler.fields["list-before"],
|
|
afterTitle = tiddler.fields["list-after"];
|
|
if(beforeTitle === "") {
|
|
newPos = 0;
|
|
} else if(afterTitle === "") {
|
|
newPos = titles.length;
|
|
} else if(beforeTitle) {
|
|
// if this title is placed relative
|
|
// to another title, make sure that
|
|
// title is placed before we place
|
|
// this one.
|
|
moveItemInList(beforeTitle);
|
|
newPos = titles.indexOf(beforeTitle);
|
|
} else if(afterTitle) {
|
|
// Same deal
|
|
moveItemInList(afterTitle);
|
|
newPos = titles.indexOf(afterTitle);
|
|
if(newPos >= 0) {
|
|
++newPos;
|
|
}
|
|
}
|
|
// If a new position is specified, let's move it
|
|
if (newPos !== -1) {
|
|
// get its current Pos, and make sure
|
|
// sure that it's _actually_ in the list
|
|
// and that it would _actually_ move
|
|
// (#4275) We don't bother calling
|
|
// indexOf unless we have a new
|
|
// position to work with
|
|
var currPos = titles.indexOf(title);
|
|
if(currPos >= 0 && newPos !== currPos) {
|
|
// move it!
|
|
titles.splice(currPos,1);
|
|
if(newPos >= currPos) {
|
|
newPos--;
|
|
}
|
|
titles.splice(newPos,0,title);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
var list = this.getTiddlerList(listTitle);
|
|
if(!array || array.length === 0) {
|
|
return [];
|
|
} else {
|
|
var titles = [], t, title;
|
|
// First place any entries that are present in the list
|
|
for(t=0; t<list.length; t++) {
|
|
title = list[t];
|
|
if(array.indexOf(title) !== -1) {
|
|
titles.push(title);
|
|
}
|
|
}
|
|
// Then place any remaining entries
|
|
for(t=0; t<array.length; t++) {
|
|
title = array[t];
|
|
if(list.indexOf(title) === -1) {
|
|
titles.push(title);
|
|
}
|
|
}
|
|
// Finally obey the list-before and list-after fields of each tiddler in turn
|
|
var sortedTitles = titles.slice(0);
|
|
for(t=0; t<sortedTitles.length; t++) {
|
|
title = sortedTitles[t];
|
|
moveItemInList(title);
|
|
}
|
|
return titles;
|
|
}
|
|
};
|
|
|
|
exports.getSubTiddler = function(title,subTiddlerTitle) {
|
|
var bundleInfo = this.getPluginInfo(title) || this.getTiddlerDataCached(title);
|
|
if(bundleInfo && bundleInfo.tiddlers) {
|
|
var subTiddler = bundleInfo.tiddlers[subTiddlerTitle];
|
|
if(subTiddler) {
|
|
return new $tw.Tiddler(subTiddler);
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
|
|
/*
|
|
Retrieve a tiddler as a JSON string of the fields
|
|
*/
|
|
exports.getTiddlerAsJson = function(title) {
|
|
var tiddler = this.getTiddler(title);
|
|
if(tiddler) {
|
|
var fields = Object.create(null);
|
|
$tw.utils.each(tiddler.fields,function(value,name) {
|
|
fields[name] = tiddler.getFieldString(name);
|
|
});
|
|
return JSON.stringify(fields);
|
|
} else {
|
|
return JSON.stringify({title: title});
|
|
}
|
|
};
|
|
|
|
exports.getTiddlersAsJson = function(filter,spaces) {
|
|
var tiddlers = this.filterTiddlers(filter),
|
|
spaces = (spaces === undefined) ? $tw.config.preferences.jsonSpaces : spaces,
|
|
data = [];
|
|
for(var t=0;t<tiddlers.length; t++) {
|
|
var tiddler = this.getTiddler(tiddlers[t]);
|
|
if(tiddler) {
|
|
var fields = new Object();
|
|
for(var field in tiddler.fields) {
|
|
fields[field] = tiddler.getFieldString(field);
|
|
}
|
|
data.push(fields);
|
|
}
|
|
}
|
|
return JSON.stringify(data,null,spaces);
|
|
};
|
|
|
|
/*
|
|
Get the content of a tiddler as a JavaScript object. How this is done depends on the type of the tiddler:
|
|
|
|
application/json: the tiddler JSON is parsed into an object
|
|
application/x-tiddler-dictionary: the tiddler is parsed as sequence of name:value pairs
|
|
|
|
Other types currently just return null.
|
|
|
|
titleOrTiddler: string tiddler title or a tiddler object
|
|
defaultData: default data to be returned if the tiddler is missing or doesn't contain data
|
|
|
|
Note that the same value is returned for repeated calls for the same tiddler data. The value is frozen to prevent modification; otherwise modifications would be visible to all callers
|
|
*/
|
|
exports.getTiddlerDataCached = function(titleOrTiddler,defaultData) {
|
|
var self = this,
|
|
tiddler = titleOrTiddler;
|
|
if(!(tiddler instanceof $tw.Tiddler)) {
|
|
tiddler = this.getTiddler(tiddler);
|
|
}
|
|
if(tiddler) {
|
|
return this.getCacheForTiddler(tiddler.fields.title,"data",function() {
|
|
// Return the frozen value
|
|
var value = self.getTiddlerData(tiddler.fields.title,undefined);
|
|
$tw.utils.deepFreeze(value);
|
|
return value;
|
|
}) || defaultData;
|
|
} else {
|
|
return defaultData;
|
|
}
|
|
};
|
|
|
|
/*
|
|
Alternative, uncached version of getTiddlerDataCached(). The return value can be mutated freely and reused
|
|
*/
|
|
exports.getTiddlerData = function(titleOrTiddler,defaultData) {
|
|
var tiddler = titleOrTiddler,
|
|
data;
|
|
if(!(tiddler instanceof $tw.Tiddler)) {
|
|
tiddler = this.getTiddler(tiddler);
|
|
}
|
|
if(tiddler && tiddler.fields.text) {
|
|
switch(tiddler.fields.type) {
|
|
case "application/json":
|
|
// JSON tiddler
|
|
return $tw.utils.parseJSONSafe(tiddler.fields.text,defaultData);
|
|
case "application/x-tiddler-dictionary":
|
|
return $tw.utils.parseFields(tiddler.fields.text);
|
|
}
|
|
}
|
|
return defaultData;
|
|
};
|
|
|
|
/*
|
|
Extract an indexed field from within a data tiddler
|
|
*/
|
|
exports.extractTiddlerDataItem = function(titleOrTiddler,index,defaultText) {
|
|
var data = this.getTiddlerDataCached(titleOrTiddler,Object.create(null)),
|
|
text;
|
|
if(data && $tw.utils.hop(data,index)) {
|
|
text = data[index];
|
|
}
|
|
if(typeof text === "string" || typeof text === "number") {
|
|
return text.toString();
|
|
} else {
|
|
return defaultText;
|
|
}
|
|
};
|
|
|
|
/*
|
|
Set a tiddlers content to a JavaScript object. Currently this is done by setting the tiddler's type to "application/json" and setting the text to the JSON text of the data.
|
|
title: title of tiddler
|
|
data: object that can be serialised to JSON
|
|
fields: optional hashmap of additional tiddler fields to be set
|
|
options: optional hashmap of options including:
|
|
suppressTimestamp: if true, don't set the creation/modification timestamps
|
|
*/
|
|
exports.setTiddlerData = function(title,data,fields,options) {
|
|
options = options || {};
|
|
var existingTiddler = this.getTiddler(title),
|
|
creationFields = options.suppressTimestamp ? {} : this.getCreationFields(),
|
|
modificationFields = options.suppressTimestamp ? {} : this.getModificationFields(),
|
|
newFields = {
|
|
title: title
|
|
};
|
|
if(existingTiddler && existingTiddler.fields.type === "application/x-tiddler-dictionary") {
|
|
newFields.text = $tw.utils.makeTiddlerDictionary(data);
|
|
} else {
|
|
newFields.type = "application/json";
|
|
newFields.text = JSON.stringify(data,null,$tw.config.preferences.jsonSpaces);
|
|
}
|
|
this.addTiddler(new $tw.Tiddler(creationFields,existingTiddler,fields,newFields,modificationFields));
|
|
};
|
|
|
|
/*
|
|
Return the content of a tiddler as an array containing each line
|
|
*/
|
|
exports.getTiddlerList = function(title,field,index) {
|
|
if(index) {
|
|
return $tw.utils.parseStringArray(this.extractTiddlerDataItem(title,index,""));
|
|
}
|
|
field = field || "list";
|
|
var tiddler = this.getTiddler(title);
|
|
if(tiddler) {
|
|
return ($tw.utils.parseStringArray(tiddler.fields[field]) || []).slice(0);
|
|
}
|
|
return [];
|
|
};
|
|
|
|
// Return a named global cache object. Global cache objects are cleared whenever a tiddler change occurs
|
|
exports.getGlobalCache = function(cacheName,initializer) {
|
|
this.globalCache = this.globalCache || Object.create(null);
|
|
if($tw.utils.hop(this.globalCache,cacheName)) {
|
|
return this.globalCache[cacheName];
|
|
} else {
|
|
this.globalCache[cacheName] = initializer();
|
|
return this.globalCache[cacheName];
|
|
}
|
|
};
|
|
|
|
exports.clearGlobalCache = function() {
|
|
this.globalCache = Object.create(null);
|
|
};
|
|
|
|
// Return the named cache object for a tiddler. If the cache doesn't exist then the initializer function is invoked to create it
|
|
exports.getCacheForTiddler = function(title,cacheName,initializer) {
|
|
this.caches = this.caches || Object.create(null);
|
|
var caches = this.caches[title];
|
|
if(caches && caches[cacheName] !== undefined) {
|
|
return caches[cacheName];
|
|
} else {
|
|
if(!caches) {
|
|
caches = Object.create(null);
|
|
this.caches[title] = caches;
|
|
}
|
|
caches[cacheName] = initializer();
|
|
return caches[cacheName];
|
|
}
|
|
};
|
|
|
|
// Clear all caches associated with a particular tiddler, or, if the title is null, clear all the caches for all the tiddlers
|
|
exports.clearCache = function(title) {
|
|
if(title) {
|
|
this.caches = this.caches || Object.create(null);
|
|
if($tw.utils.hop(this.caches,title)) {
|
|
delete this.caches[title];
|
|
}
|
|
} else {
|
|
this.caches = Object.create(null);
|
|
}
|
|
};
|
|
|
|
exports.initParsers = function(moduleType) {
|
|
// Install the parser modules
|
|
$tw.Wiki.parsers = {};
|
|
var self = this;
|
|
$tw.modules.forEachModuleOfType("parser",function(title,module) {
|
|
for(var f in module) {
|
|
if($tw.utils.hop(module,f)) {
|
|
$tw.Wiki.parsers[f] = module[f]; // Store the parser class
|
|
}
|
|
}
|
|
});
|
|
// Use the generic binary parser for any binary types not registered so far
|
|
if($tw.Wiki.parsers["application/octet-stream"]) {
|
|
Object.keys($tw.config.contentTypeInfo).forEach(function(type) {
|
|
if(!$tw.utils.hop($tw.Wiki.parsers,type) && $tw.config.contentTypeInfo[type].encoding === "base64") {
|
|
$tw.Wiki.parsers[type] = $tw.Wiki.parsers["application/octet-stream"];
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
/*
|
|
Parse a block of text of a specified MIME type
|
|
type: content type of text to be parsed
|
|
text: text
|
|
options: see below
|
|
Options include:
|
|
parseAsInline: if true, the text of the tiddler will be parsed as an inline run
|
|
_canonical_uri: optional string of the canonical URI of this content
|
|
*/
|
|
exports.parseText = function(type,text,options) {
|
|
text = text || "";
|
|
options = options || {};
|
|
// Select a parser
|
|
var Parser = $tw.Wiki.parsers[type];
|
|
if(!Parser && $tw.utils.getFileExtensionInfo(type)) {
|
|
Parser = $tw.Wiki.parsers[$tw.utils.getFileExtensionInfo(type).type];
|
|
}
|
|
if(!Parser) {
|
|
Parser = $tw.Wiki.parsers[options.defaultType || "text/vnd.tiddlywiki"];
|
|
}
|
|
if(!Parser) {
|
|
return null;
|
|
}
|
|
// Return the parser instance
|
|
return new Parser(type,text,{
|
|
parseAsInline: options.parseAsInline,
|
|
wiki: this,
|
|
_canonical_uri: options._canonical_uri,
|
|
configTrimWhiteSpace: options.configTrimWhiteSpace
|
|
});
|
|
};
|
|
|
|
/*
|
|
Parse a tiddler according to its MIME type
|
|
*/
|
|
exports.parseTiddler = function(title,options) {
|
|
options = $tw.utils.extend({},options);
|
|
var cacheType = options.parseAsInline ? "inlineParseTree" : "blockParseTree",
|
|
tiddler = this.getTiddler(title),
|
|
self = this;
|
|
return tiddler ? this.getCacheForTiddler(title,cacheType,function() {
|
|
if(tiddler.hasField("_canonical_uri")) {
|
|
options._canonical_uri = tiddler.fields._canonical_uri;
|
|
}
|
|
return self.parseText(tiddler.fields.type,tiddler.fields.text,options);
|
|
}) : null;
|
|
};
|
|
|
|
exports.parseTextReference = function(title,field,index,options) {
|
|
var tiddler,
|
|
text,
|
|
parserInfo;
|
|
if(!options.subTiddler) {
|
|
tiddler = this.getTiddler(title);
|
|
if(field === "text" || (!field && !index)) {
|
|
this.getTiddlerText(title); // Force the tiddler to be lazily loaded
|
|
return this.parseTiddler(title,options);
|
|
}
|
|
}
|
|
parserInfo = this.getTextReferenceParserInfo(title,field,index,options);
|
|
if(parserInfo.sourceText !== null) {
|
|
return this.parseText(parserInfo.parserType,parserInfo.sourceText,options);
|
|
} else {
|
|
return null;
|
|
}
|
|
};
|
|
|
|
exports.getTextReferenceParserInfo = function(title,field,index,options) {
|
|
var defaultType = options.defaultType || "text/vnd.tiddlywiki",
|
|
tiddler,
|
|
parserInfo = {
|
|
sourceText : null,
|
|
parserType : defaultType
|
|
};
|
|
if(options.subTiddler) {
|
|
tiddler = this.getSubTiddler(title,options.subTiddler);
|
|
} else {
|
|
tiddler = this.getTiddler(title);
|
|
}
|
|
if(field === "text" || (!field && !index)) {
|
|
if(tiddler && tiddler.fields) {
|
|
parserInfo.sourceText = tiddler.fields.text || "";
|
|
if(tiddler.fields.type) {
|
|
parserInfo.parserType = tiddler.fields.type;
|
|
}
|
|
}
|
|
} else if(field) {
|
|
if(field === "title") {
|
|
parserInfo.sourceText = title;
|
|
} else if(tiddler && tiddler.fields) {
|
|
parserInfo.sourceText = tiddler.hasField(field) ? tiddler.fields[field].toString() : null;
|
|
}
|
|
} else if(index) {
|
|
this.getTiddlerText(title); // Force the tiddler to be lazily loaded
|
|
parserInfo.sourceText = this.extractTiddlerDataItem(tiddler,index,null);
|
|
}
|
|
if(parserInfo.sourceText === null) {
|
|
parserInfo.parserType = null;
|
|
}
|
|
return parserInfo;
|
|
}
|
|
|
|
/*
|
|
Make a widget tree for a parse tree
|
|
parser: parser object
|
|
options: see below
|
|
Options include:
|
|
document: optional document to use
|
|
variables: hashmap of variables to set
|
|
parentWidget: optional parent widget for the root node
|
|
*/
|
|
exports.makeWidget = function(parser,options) {
|
|
options = options || {};
|
|
var widgetNode = {
|
|
type: "widget",
|
|
children: []
|
|
},
|
|
currWidgetNode = widgetNode;
|
|
// Create let variable widget for variables
|
|
if($tw.utils.count(options.variables) > 0) {
|
|
var letVariableWidget = {
|
|
type: "let",
|
|
attributes: {
|
|
},
|
|
children: []
|
|
};
|
|
$tw.utils.each(options.variables,function(value,name) {
|
|
$tw.utils.addAttributeToParseTreeNode(letVariableWidget,name,"" + value);
|
|
});
|
|
currWidgetNode.children = [letVariableWidget];
|
|
currWidgetNode = letVariableWidget;
|
|
}
|
|
// Add in the supplied parse tree nodes
|
|
currWidgetNode.children = parser ? parser.tree : [];
|
|
// Create the widget
|
|
return new widget.widget(widgetNode,{
|
|
wiki: this,
|
|
document: options.document || $tw.fakeDocument,
|
|
parentWidget: options.parentWidget
|
|
});
|
|
};
|
|
|
|
/*
|
|
Make a widget tree for transclusion
|
|
title: target tiddler title
|
|
options: as for wiki.makeWidget() plus:
|
|
options.field: optional field to transclude (defaults to "text")
|
|
options.mode: transclusion mode "inline" or "block"
|
|
options.recursionMarker : optional flag to set a recursion marker, defaults to "yes"
|
|
options.children: optional array of children for the transclude widget
|
|
options.importVariables: optional importvariables filter string for macros to be included
|
|
options.importPageMacros: optional boolean; if true, equivalent to passing "[[$:/core/ui/PageMacros]] [all[shadows+tiddlers]tag[$:/tags/Macro]!has[draft.of]]" to options.importVariables
|
|
*/
|
|
exports.makeTranscludeWidget = function(title,options) {
|
|
options = options || {};
|
|
var parseTreeDiv = {tree: [{
|
|
type: "element",
|
|
tag: "div",
|
|
children: []}]},
|
|
parseTreeImportVariables = {
|
|
type: "importvariables",
|
|
attributes: {
|
|
filter: {
|
|
name: "filter",
|
|
type: "string"
|
|
}
|
|
},
|
|
isBlock: false,
|
|
children: []},
|
|
parseTreeTransclude = {
|
|
type: "transclude",
|
|
attributes: {
|
|
recursionMarker: {
|
|
name: "recursionMarker",
|
|
type: "string",
|
|
value: options.recursionMarker || "yes"
|
|
},
|
|
tiddler: {
|
|
name: "tiddler",
|
|
type: "string",
|
|
value: title
|
|
}
|
|
},
|
|
isBlock: !options.parseAsInline};
|
|
if(options.importVariables || options.importPageMacros) {
|
|
if(options.importVariables) {
|
|
parseTreeImportVariables.attributes.filter.value = options.importVariables;
|
|
} else if(options.importPageMacros) {
|
|
parseTreeImportVariables.attributes.filter.value = this.getTiddlerText("$:/core/config/GlobalImportFilter");
|
|
}
|
|
parseTreeDiv.tree[0].children.push(parseTreeImportVariables);
|
|
parseTreeImportVariables.children.push(parseTreeTransclude);
|
|
} else {
|
|
parseTreeDiv.tree[0].children.push(parseTreeTransclude);
|
|
}
|
|
if(options.field) {
|
|
parseTreeTransclude.attributes.field = {type: "string", value: options.field};
|
|
}
|
|
if(options.mode) {
|
|
parseTreeTransclude.attributes.mode = {type: "string", value: options.mode};
|
|
}
|
|
if(options.children) {
|
|
parseTreeTransclude.children = options.children;
|
|
}
|
|
return this.makeWidget(parseTreeDiv,options);
|
|
};
|
|
|
|
/*
|
|
Parse text in a specified format and render it into another format
|
|
outputType: content type for the output
|
|
textType: content type of the input text
|
|
text: input text
|
|
options: see below
|
|
Options include:
|
|
variables: hashmap of variables to set
|
|
parentWidget: optional parent widget for the root node
|
|
*/
|
|
exports.renderText = function(outputType,textType,text,options) {
|
|
options = options || {};
|
|
var parser = this.parseText(textType,text,options),
|
|
widgetNode = this.makeWidget(parser,options);
|
|
var container = $tw.fakeDocument.createElement("div");
|
|
widgetNode.render(container,null);
|
|
return outputType === "text/html" ? container.innerHTML : container.textContent;
|
|
};
|
|
|
|
/*
|
|
Parse text from a tiddler and render it into another format
|
|
outputType: content type for the output
|
|
title: title of the tiddler to be rendered
|
|
options: see below
|
|
Options include:
|
|
variables: hashmap of variables to set
|
|
parentWidget: optional parent widget for the root node
|
|
*/
|
|
exports.renderTiddler = function(outputType,title,options) {
|
|
options = options || {};
|
|
var parser = this.parseTiddler(title,options),
|
|
widgetNode = this.makeWidget(parser,options);
|
|
var container = $tw.fakeDocument.createElement("div");
|
|
widgetNode.render(container,null);
|
|
return outputType === "text/html" ? container.innerHTML : (outputType === "text/plain-formatted" ? container.formattedTextContent : container.textContent);
|
|
};
|
|
|
|
/*
|
|
Return an array of tiddler titles that match a search string
|
|
text: The text string to search for
|
|
options: see below
|
|
Options available:
|
|
source: an iterator function for the source tiddlers, called source(iterator),
|
|
where iterator is called as iterator(tiddler,title)
|
|
exclude: An array of tiddler titles to exclude from the search
|
|
invert: If true returns tiddlers that do not contain the specified string
|
|
caseSensitive: If true forces a case sensitive search
|
|
field: If specified, restricts the search to the specified field, or an array of field names
|
|
anchored: If true, forces all but regexp searches to be anchored to the start of text
|
|
excludeField: If true, the field options are inverted to specify the fields that are not to be searched
|
|
|
|
The search mode is determined by the first of these boolean flags to be true
|
|
literal: searches for literal string
|
|
whitespace: same as literal except runs of whitespace are treated as a single space
|
|
regexp: treats the search term as a regular expression
|
|
words: (default) treats search string as a list of tokens, and matches if all tokens are found,
|
|
regardless of adjacency or ordering
|
|
some: treats search string as a list of tokens, and matches if at least ONE token is found
|
|
*/
|
|
exports.search = function(text,options) {
|
|
options = options || {};
|
|
var self = this,
|
|
t,
|
|
regExpStr="",
|
|
invert = !!options.invert;
|
|
// Convert the search string into a regexp for each term
|
|
var terms, searchTermsRegExps,
|
|
flags = options.caseSensitive ? "" : "i",
|
|
anchor = options.anchored ? "^" : "";
|
|
if(options.literal) {
|
|
if(text.length === 0) {
|
|
searchTermsRegExps = null;
|
|
} else {
|
|
searchTermsRegExps = [new RegExp("(" + anchor + $tw.utils.escapeRegExp(text) + ")",flags)];
|
|
}
|
|
} else if(options.whitespace) {
|
|
terms = [];
|
|
$tw.utils.each(text.split(/\s+/g),function(term) {
|
|
if(term) {
|
|
terms.push($tw.utils.escapeRegExp(term));
|
|
}
|
|
});
|
|
searchTermsRegExps = [new RegExp("(" + anchor + terms.join("\\s+") + ")",flags)];
|
|
} else if(options.regexp) {
|
|
try {
|
|
searchTermsRegExps = [new RegExp("(" + text + ")",flags)];
|
|
} catch(e) {
|
|
searchTermsRegExps = null;
|
|
console.log("Regexp error parsing /(" + text + ")/" + flags + ": ",e);
|
|
}
|
|
} else if(options.some) {
|
|
terms = text.trim().split(/ +/);
|
|
if(terms.length === 1 && terms[0] === "") {
|
|
searchTermsRegExps = null;
|
|
} else {
|
|
searchTermsRegExps = [];
|
|
for(t=0; t<terms.length; t++) {
|
|
regExpStr += (t===0) ? anchor + $tw.utils.escapeRegExp(terms[t]) : "|" + anchor + $tw.utils.escapeRegExp(terms[t]);
|
|
}
|
|
searchTermsRegExps.push(new RegExp("(" + regExpStr + ")",flags));
|
|
}
|
|
} else { // default: words
|
|
terms = text.split(/ +/);
|
|
if(terms.length === 1 && terms[0] === "") {
|
|
searchTermsRegExps = null;
|
|
} else {
|
|
searchTermsRegExps = [];
|
|
for(t=0; t<terms.length; t++) {
|
|
searchTermsRegExps.push(new RegExp("(" + anchor + $tw.utils.escapeRegExp(terms[t]) + ")",flags));
|
|
}
|
|
}
|
|
}
|
|
// Accumulate the array of fields to be searched or excluded from the search
|
|
var fields = [];
|
|
if(options.field) {
|
|
if($tw.utils.isArray(options.field)) {
|
|
$tw.utils.each(options.field,function(fieldName) {
|
|
if(fieldName) {
|
|
fields.push(fieldName);
|
|
}
|
|
});
|
|
} else {
|
|
fields.push(options.field);
|
|
}
|
|
}
|
|
// Use default fields if none specified and we're not excluding fields (excluding fields with an empty field array is the same as searching all fields)
|
|
if(fields.length === 0 && !options.excludeField) {
|
|
fields.push("title");
|
|
fields.push("tags");
|
|
fields.push("text");
|
|
}
|
|
// Function to check a given tiddler for the search term
|
|
var searchTiddler = function(title) {
|
|
if(!searchTermsRegExps) {
|
|
return true;
|
|
}
|
|
var notYetFound = searchTermsRegExps.slice();
|
|
|
|
var tiddler = self.getTiddler(title);
|
|
if(!tiddler) {
|
|
tiddler = new $tw.Tiddler({title: title, text: "", type: "text/vnd.tiddlywiki"});
|
|
}
|
|
var contentTypeInfo = $tw.config.contentTypeInfo[tiddler.fields.type] || $tw.config.contentTypeInfo["text/vnd.tiddlywiki"],
|
|
searchFields;
|
|
// Get the list of fields we're searching
|
|
if(options.excludeField) {
|
|
searchFields = Object.keys(tiddler.fields);
|
|
$tw.utils.each(fields,function(fieldName) {
|
|
var p = searchFields.indexOf(fieldName);
|
|
if(p !== -1) {
|
|
searchFields.splice(p,1);
|
|
}
|
|
});
|
|
} else {
|
|
searchFields = fields;
|
|
}
|
|
for(var fieldIndex=0; notYetFound.length>0 && fieldIndex<searchFields.length; fieldIndex++) {
|
|
// Don't search the text field if the content type is binary
|
|
var fieldName = searchFields[fieldIndex];
|
|
if(fieldName === "text" && contentTypeInfo.encoding !== "utf8") {
|
|
break;
|
|
}
|
|
var str = tiddler.fields[fieldName],
|
|
t;
|
|
if(str) {
|
|
if($tw.utils.isArray(str)) {
|
|
// If the field value is an array, test each regexp against each field array entry and fail if each regexp doesn't match at least one field array entry
|
|
for(var s=0; s<str.length; s++) {
|
|
for(t=0; t<notYetFound.length;) {
|
|
if(notYetFound[t].test(str[s])) {
|
|
notYetFound.splice(t, 1);
|
|
} else {
|
|
t++;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// If the field isn't an array, force it to a string and test each regexp against it and fail if any do not match
|
|
str = tiddler.getFieldString(fieldName);
|
|
for(t=0; t<notYetFound.length;) {
|
|
if(notYetFound[t].test(str)) {
|
|
notYetFound.splice(t, 1);
|
|
} else {
|
|
t++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
return notYetFound.length == 0;
|
|
};
|
|
// Loop through all the tiddlers doing the search
|
|
var results = [],
|
|
source = options.source || this.each;
|
|
source(function(tiddler,title) {
|
|
if(searchTiddler(title) !== invert) {
|
|
results.push(title);
|
|
}
|
|
});
|
|
// Remove any of the results we have to exclude
|
|
if(options.exclude) {
|
|
for(t=0; t<options.exclude.length; t++) {
|
|
var p = results.indexOf(options.exclude[t]);
|
|
if(p !== -1) {
|
|
results.splice(p,1);
|
|
}
|
|
}
|
|
}
|
|
return results;
|
|
};
|
|
|
|
/*
|
|
Trigger a load for a tiddler if it is skinny. Returns the text, or undefined if the tiddler is missing, null if the tiddler is being lazily loaded.
|
|
*/
|
|
exports.getTiddlerText = function(title,defaultText) {
|
|
var tiddler = this.getTiddler(title);
|
|
// Return undefined if the tiddler isn't found
|
|
if(!tiddler) {
|
|
return defaultText;
|
|
}
|
|
if(!tiddler.hasField("_is_skinny")) {
|
|
// Just return the text if we've got it
|
|
return tiddler.fields.text || "";
|
|
} else {
|
|
// Tell any listeners about the need to lazily load this tiddler
|
|
this.dispatchEvent("lazyLoad",title);
|
|
// Indicate that the text is being loaded
|
|
return null;
|
|
}
|
|
};
|
|
|
|
/*
|
|
Check whether the text of a tiddler matches a given value. By default, the comparison is case insensitive, and any spaces at either end of the tiddler text is trimmed
|
|
*/
|
|
exports.checkTiddlerText = function(title,targetText,options) {
|
|
options = options || {};
|
|
var text = this.getTiddlerText(title,"");
|
|
if(!options.noTrim) {
|
|
text = text.trim();
|
|
}
|
|
if(!options.caseSensitive) {
|
|
text = text.toLowerCase();
|
|
targetText = targetText.toLowerCase();
|
|
}
|
|
return text === targetText;
|
|
}
|
|
|
|
/*
|
|
Read an array of browser File objects, invoking callback(tiddlerFieldsArray) once they're all read
|
|
*/
|
|
exports.readFiles = function(files,options) {
|
|
var callback;
|
|
if(typeof options === "function") {
|
|
callback = options;
|
|
options = {};
|
|
} else {
|
|
callback = options.callback;
|
|
}
|
|
var result = [],
|
|
outstanding = files.length,
|
|
readFileCallback = function(tiddlerFieldsArray) {
|
|
result.push.apply(result,tiddlerFieldsArray);
|
|
if(--outstanding === 0) {
|
|
callback(result);
|
|
}
|
|
};
|
|
for(var f=0; f<files.length; f++) {
|
|
this.readFile(files[f],$tw.utils.extend({},options,{callback: readFileCallback}));
|
|
}
|
|
return files.length;
|
|
};
|
|
|
|
/*
|
|
Read a browser File object, invoking callback(tiddlerFieldsArray) with an array of tiddler fields objects
|
|
*/
|
|
exports.readFile = function(file,options) {
|
|
var callback;
|
|
if(typeof options === "function") {
|
|
callback = options;
|
|
options = {};
|
|
} else {
|
|
callback = options.callback;
|
|
}
|
|
// Get the type, falling back to the filename extension
|
|
var self = this,
|
|
type = file.type;
|
|
if(type === "" || !type) {
|
|
var dotPos = file.name.lastIndexOf(".");
|
|
if(dotPos !== -1) {
|
|
var fileExtensionInfo = $tw.utils.getFileExtensionInfo(file.name.substr(dotPos));
|
|
if(fileExtensionInfo) {
|
|
type = fileExtensionInfo.type;
|
|
}
|
|
}
|
|
}
|
|
// Figure out if we're reading a binary file
|
|
var contentTypeInfo = $tw.config.contentTypeInfo[type],
|
|
isBinary = contentTypeInfo ? contentTypeInfo.encoding === "base64" : false;
|
|
// Log some debugging information
|
|
if($tw.log.IMPORT) {
|
|
console.log("Importing file '" + file.name + "', type: '" + type + "', isBinary: " + isBinary);
|
|
}
|
|
// Give the hook a chance to process the drag
|
|
if($tw.hooks.invokeHook("th-importing-file",{
|
|
file: file,
|
|
type: type,
|
|
isBinary: isBinary,
|
|
callback: callback
|
|
}) !== true) {
|
|
this.readFileContent(file,type,isBinary,options.deserializer,callback);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Lower level utility to read the content of a browser File object, invoking callback(tiddlerFieldsArray) with an array of tiddler fields objects
|
|
*/
|
|
exports.readFileContent = function(file,type,isBinary,deserializer,callback) {
|
|
var self = this;
|
|
// Create the FileReader
|
|
var reader = new FileReader();
|
|
// Onload
|
|
reader.onload = function(event) {
|
|
var text = event.target.result,
|
|
tiddlerFields = {title: file.name || "Untitled"};
|
|
if(isBinary) {
|
|
var commaPos = text.indexOf(",");
|
|
if(commaPos !== -1) {
|
|
text = text.substr(commaPos + 1);
|
|
}
|
|
}
|
|
// Check whether this is an encrypted TiddlyWiki file
|
|
var encryptedJson = $tw.utils.extractEncryptedStoreArea(text);
|
|
if(encryptedJson) {
|
|
// If so, attempt to decrypt it with the current password
|
|
$tw.utils.decryptStoreAreaInteractive(encryptedJson,function(tiddlers) {
|
|
callback(tiddlers);
|
|
});
|
|
} else {
|
|
// Otherwise, just try to deserialise any tiddlers in the file
|
|
callback(self.deserializeTiddlers(type,text,tiddlerFields,{deserializer: deserializer}));
|
|
}
|
|
};
|
|
// Kick off the read
|
|
if(isBinary) {
|
|
reader.readAsDataURL(file);
|
|
} else {
|
|
reader.readAsText(file);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Find any existing draft of a specified tiddler
|
|
*/
|
|
exports.findDraft = function(targetTitle) {
|
|
var draftTitle = undefined;
|
|
this.forEachTiddler({includeSystem: true},function(title,tiddler) {
|
|
if(tiddler.fields["draft.title"] && tiddler.fields["draft.of"] === targetTitle) {
|
|
draftTitle = title;
|
|
}
|
|
});
|
|
return draftTitle;
|
|
}
|
|
|
|
/*
|
|
Check whether the specified draft tiddler has been modified.
|
|
If the original tiddler doesn't exist, create a vanilla tiddler variable,
|
|
to check if additional fields have been added.
|
|
*/
|
|
exports.isDraftModified = function(title) {
|
|
var tiddler = this.getTiddler(title);
|
|
if(!tiddler.isDraft()) {
|
|
return false;
|
|
}
|
|
var ignoredFields = ["created", "modified", "title", "draft.title", "draft.of"],
|
|
origTiddler = this.getTiddler(tiddler.fields["draft.of"]) || new $tw.Tiddler({text:"", tags:[]}),
|
|
titleModified = tiddler.fields["draft.title"] !== tiddler.fields["draft.of"];
|
|
return titleModified || !tiddler.isEqual(origTiddler,ignoredFields);
|
|
};
|
|
|
|
/*
|
|
Add a new record to the top of the history stack
|
|
title: a title string or an array of title strings
|
|
fromPageRect: page coordinates of the origin of the navigation
|
|
historyTitle: title of history tiddler (defaults to $:/HistoryList)
|
|
*/
|
|
exports.addToHistory = function(title,fromPageRect,historyTitle) {
|
|
var story = new $tw.Story({wiki: this, historyTitle: historyTitle});
|
|
story.addToHistory(title,fromPageRect);
|
|
console.log("$tw.wiki.addToHistory() is deprecated since V5.1.23! Use the this.story.addToHistory() from the story-object!")
|
|
};
|
|
|
|
/*
|
|
Add a new tiddler to the story river
|
|
title: a title string or an array of title strings
|
|
fromTitle: the title of the tiddler from which the navigation originated
|
|
storyTitle: title of story tiddler (defaults to $:/StoryList)
|
|
options: see story.js
|
|
*/
|
|
exports.addToStory = function(title,fromTitle,storyTitle,options) {
|
|
var story = new $tw.Story({wiki: this, storyTitle: storyTitle});
|
|
story.addToStory(title,fromTitle,options);
|
|
console.log("$tw.wiki.addToStory() is deprecated since V5.1.23! Use the this.story.addToStory() from the story-object!")
|
|
};
|
|
|
|
/*
|
|
Generate a title for the draft of a given tiddler
|
|
*/
|
|
exports.generateDraftTitle = function(title) {
|
|
var c = 0,
|
|
draftTitle,
|
|
username = this.getTiddlerText("$:/status/UserName"),
|
|
attribution = username ? " by " + username : "";
|
|
do {
|
|
draftTitle = "Draft " + (c ? (c + 1) + " " : "") + "of '" + title + "'" + attribution;
|
|
c++;
|
|
} while(this.tiddlerExists(draftTitle));
|
|
return draftTitle;
|
|
};
|
|
|
|
/*
|
|
Invoke the available upgrader modules
|
|
titles: array of tiddler titles to be processed
|
|
tiddlers: hashmap by title of tiddler fields of pending import tiddlers. These can be modified by the upgraders. An entry with no fields indicates a tiddler that was pending import has been suppressed. When entries are added to the pending import the tiddlers hashmap may have entries that are not present in the titles array
|
|
Returns a hashmap of messages keyed by tiddler title.
|
|
*/
|
|
exports.invokeUpgraders = function(titles,tiddlers) {
|
|
// Collect up the available upgrader modules
|
|
var self = this;
|
|
if(!this.upgraderModules) {
|
|
this.upgraderModules = [];
|
|
$tw.modules.forEachModuleOfType("upgrader",function(title,module) {
|
|
if(module.upgrade) {
|
|
self.upgraderModules.push(module);
|
|
}
|
|
});
|
|
}
|
|
// Invoke each upgrader in turn
|
|
var messages = {};
|
|
for(var t=0; t<this.upgraderModules.length; t++) {
|
|
var upgrader = this.upgraderModules[t],
|
|
upgraderMessages = upgrader.upgrade(this,titles,tiddlers);
|
|
$tw.utils.extend(messages,upgraderMessages);
|
|
}
|
|
return messages;
|
|
};
|
|
|
|
// Determine whether a plugin by title is dynamically loadable
|
|
exports.doesPluginRequireReload = function(title) {
|
|
var tiddler = this.getTiddler(title);
|
|
if(tiddler && tiddler.fields.type === "application/json" && tiddler.fields["plugin-type"]) {
|
|
if(tiddler.fields["plugin-type"] === "import") {
|
|
// The import plugin never requires reloading
|
|
return false;
|
|
}
|
|
}
|
|
return this.doesPluginInfoRequireReload(this.getPluginInfo(title) || this.getTiddlerDataCached(title));
|
|
};
|
|
|
|
// Determine whether a plugin info structure is dynamically loadable
|
|
exports.doesPluginInfoRequireReload = function(pluginInfo) {
|
|
if(pluginInfo) {
|
|
var foundModule = false;
|
|
$tw.utils.each(pluginInfo.tiddlers,function(tiddler) {
|
|
if(tiddler.type === "application/javascript" && $tw.utils.hop(tiddler,"module-type")) {
|
|
foundModule = true;
|
|
}
|
|
});
|
|
return foundModule;
|
|
} else {
|
|
return null;
|
|
}
|
|
};
|
|
|
|
exports.slugify = function(title,options) {
|
|
var tiddler = this.getTiddler(title),
|
|
slug;
|
|
if(tiddler && tiddler.fields.slug) {
|
|
slug = tiddler.fields.slug;
|
|
} else {
|
|
slug = $tw.utils.transliterate(title.toString().toLowerCase()) // Replace diacritics with basic lowercase ASCII
|
|
.replace(/\s+/g,"-") // Replace spaces with -
|
|
.replace(/[^\w\-\.]+/g,"") // Remove all non-word chars except dash and dot
|
|
.replace(/\-\-+/g,"-") // Replace multiple - with single -
|
|
.replace(/^-+/,"") // Trim - from start of text
|
|
.replace(/-+$/,""); // Trim - from end of text
|
|
}
|
|
// If the resulting slug is blank (eg because the title is just punctuation characters)
|
|
if(!slug) {
|
|
// ...then just use the character codes of the title
|
|
var result = [];
|
|
$tw.utils.each(title.split(""),function(char) {
|
|
result.push(char.charCodeAt(0).toString());
|
|
});
|
|
slug = result.join("-");
|
|
}
|
|
return slug;
|
|
};
|
|
|
|
})();
|