mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-06 18:16:18 +00:00
1129 lines
33 KiB
JavaScript
Executable File
1129 lines
33 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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/*
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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;
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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) {
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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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data[index] = value;
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this.setTiddlerData(title,data,this.getModificationFields());
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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(tiddler,fields,this.getModificationFields()));
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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.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($tw.utils.hop(this.changeCount,title)) {
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return this.changeCount[title];
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} else {
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return 0;
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}
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};
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/*
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Generate an unused title from the specified base
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*/
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exports.generateNewTitle = function(baseTitle,options) {
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options = options || {};
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var c = 0,
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title = baseTitle;
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while(this.tiddlerExists(title) || this.isShadowTiddler(title)) {
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title = baseTitle +
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(options.prefix || " ") +
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(++c);
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};
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return title;
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};
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exports.isSystemTiddler = function(title) {
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return title.indexOf("$:/") === 0;
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};
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exports.isTemporaryTiddler = function(title) {
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return title.indexOf("$:/temp/") === 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 = $tw.config.contentTypeInfo[tiddler.fields.type || "text/vnd.tiddlywiki"];
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return !!contentTypeInfo && contentTypeInfo.flags.indexOf("image") !== -1;
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} else {
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return null;
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}
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};
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/*
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Like addTiddler() except it will silently reject any plugin tiddlers that are older than the currently loaded version. Returns true if the tiddler was imported
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*/
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exports.importTiddler = function(tiddler) {
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var existingTiddler = this.getTiddler(tiddler.fields.title);
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// Check if we're dealing with a plugin
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if(tiddler && tiddler.hasField("plugin-type") && tiddler.hasField("version") && existingTiddler && existingTiddler.hasField("plugin-type") && existingTiddler.hasField("version")) {
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// Reject the incoming plugin if it is older
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if($tw.utils.checkVersions(existingTiddler.fields.version,tiddler.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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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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};
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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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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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};
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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) {
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var self = this;
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titles.sort(function(a,b) {
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if(sortField !== "title") {
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a = self.getTiddler(a).fields[sortField] || "";
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b = self.getTiddler(b).fields[sortField] || "";
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}
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if(isNumeric) {
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a = Number(a);
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b = Number(b);
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return isDescending ? b - a : a - b;
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} else if($tw.utils.isDate(a) && $tw.utils.isDate(b)) {
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return isDescending ? b - a : a - b;
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} else {
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a = String(a);
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b = String(b);
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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 from the specified tiddler
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*/
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exports.getTiddlerLinks = function(title) {
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var self = this;
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// We'll cache the links so they only get computed if the tiddler changes
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return this.getCacheForTiddler(title,"links",function() {
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// Parse the tiddler
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var parser = self.parseTiddler(title);
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// Count up the links
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var links = [],
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checkParseTree = function(parseTree) {
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for(var t=0; t<parseTree.length; t++) {
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var parseTreeNode = parseTree[t];
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if(parseTreeNode.type === "link" && parseTreeNode.attributes.to && parseTreeNode.attributes.to.type === "string") {
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var value = parseTreeNode.attributes.to.value;
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if(links.indexOf(value) === -1) {
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links.push(value);
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}
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}
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if(parseTreeNode.children) {
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checkParseTree(parseTreeNode.children);
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}
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}
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};
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if(parser) {
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checkParseTree(parser.tree);
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}
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return links;
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});
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};
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/*
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Return an array of tiddler titles that link to the specified tiddler
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*/
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exports.getTiddlerBacklinks = function(targetTitle) {
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var self = this,
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backlinks = [];
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this.forEachTiddler(function(title,tiddler) {
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var links = self.getTiddlerLinks(title);
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if(links.indexOf(targetTitle) !== -1) {
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backlinks.push(title);
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}
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});
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return backlinks;
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};
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/*
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Return a hashmap of tiddler titles that are referenced but not defined. Each value is the number of times the missing tiddler is referenced
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*/
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exports.getMissingTitles = function() {
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var self = this,
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missing = [];
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// We should cache the missing tiddler list, even if we recreate it every time any tiddler is modified
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this.forEachTiddler(function(title,tiddler) {
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var links = self.getTiddlerLinks(title);
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$tw.utils.each(links,function(link) {
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if((!self.tiddlerExists(link) && !self.isShadowTiddler(link)) && missing.indexOf(link) === -1) {
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missing.push(link);
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}
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});
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});
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return missing;
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};
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exports.getOrphanTitles = function() {
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var self = this,
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orphans = this.getTiddlers();
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this.forEachTiddler(function(title,tiddler) {
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var links = self.getTiddlerLinks(title);
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$tw.utils.each(links,function(link) {
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var p = orphans.indexOf(link);
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if(p !== -1) {
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orphans.splice(p,1);
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}
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});
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});
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return orphans; // Todo
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};
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/*
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Retrieves a list of the tiddler titles that are tagged with a given tag
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*/
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exports.getTiddlersWithTag = function(tag) {
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var self = this;
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return this.getGlobalCache("taglist-" + tag,function() {
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var tagmap = self.getTagMap();
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return self.sortByList(tagmap[tag],tag);
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});
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};
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/*
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Get a hashmap by tag of arrays of tiddler titles
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*/
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exports.getTagMap = function() {
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var self = this;
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return this.getGlobalCache("tagmap",function() {
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var tags = Object.create(null),
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storeTags = function(tagArray,title) {
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if(tagArray) {
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for(var index=0; index<tagArray.length; index++) {
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var tag = tagArray[index];
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if($tw.utils.hop(tags,tag)) {
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tags[tag].push(title)
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} else {
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tags[tag] = [title];
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}
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}
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}
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},
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title, tiddler;
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// Collect up all the tags
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self.eachShadow(function(tiddler,title) {
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if(!self.tiddlerExists(title)) {
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tiddler = self.getTiddler(title);
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storeTags(tiddler.fields.tags,title);
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}
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});
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self.each(function(tiddler,title) {
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storeTags(tiddler.fields.tags,title);
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});
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return tags;
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});
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};
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/*
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Lookup a given tiddler and return a list of all the tiddlers that include it in the specified list field
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*/
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exports.findListingsOfTiddler = function(targetTitle,fieldName) {
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fieldName = fieldName || "list";
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var titles = [];
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this.each(function(tiddler,title) {
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var list = $tw.utils.parseStringArray(tiddler.fields[fieldName]);
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if(list && list.indexOf(targetTitle) !== -1) {
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titles.push(title);
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}
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});
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return titles;
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};
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/*
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Sorts an array of tiddler titles according to an ordered list
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*/
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exports.sortByList = function(array,listTitle) {
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var list = this.getTiddlerList(listTitle);
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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];
|
|
var currPos = titles.indexOf(title),
|
|
newPos = -1,
|
|
tiddler = this.getTiddler(title);
|
|
if(tiddler) {
|
|
var beforeTitle = tiddler.fields["list-before"],
|
|
afterTitle = tiddler.fields["list-after"];
|
|
if(beforeTitle === "") {
|
|
newPos = 0;
|
|
} else if(beforeTitle) {
|
|
newPos = titles.indexOf(beforeTitle);
|
|
} else if(afterTitle) {
|
|
newPos = titles.indexOf(afterTitle);
|
|
if(newPos >= 0) {
|
|
++newPos;
|
|
}
|
|
}
|
|
if(newPos === -1) {
|
|
newPos = currPos;
|
|
}
|
|
if(newPos !== currPos) {
|
|
titles.splice(currPos,1);
|
|
if(newPos >= currPos) {
|
|
newPos--;
|
|
}
|
|
titles.splice(newPos,0,title);
|
|
}
|
|
}
|
|
|
|
}
|
|
return titles;
|
|
}
|
|
};
|
|
|
|
/*
|
|
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});
|
|
}
|
|
};
|
|
|
|
/*
|
|
Get a tiddlers content 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.
|
|
*/
|
|
exports.getTiddlerData = function(title,defaultData) {
|
|
var tiddler = this.getTiddler(title),
|
|
data;
|
|
if(tiddler && tiddler.fields.text) {
|
|
switch(tiddler.fields.type) {
|
|
case "application/json":
|
|
// JSON tiddler
|
|
try {
|
|
data = JSON.parse(tiddler.fields.text);
|
|
} catch(ex) {
|
|
return defaultData;
|
|
}
|
|
return data;
|
|
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(title,index,defaultText) {
|
|
var data = this.getTiddlerData(title,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
|
|
*/
|
|
exports.setTiddlerData = function(title,data,fields) {
|
|
var existingTiddler = this.getTiddler(title),
|
|
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(existingTiddler,fields,newFields,this.getModificationFields()));
|
|
};
|
|
|
|
/*
|
|
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($tw.utils.hop(this.globalCache,cacheName)) {
|
|
return this.globalCache[cacheName];
|
|
} else {
|
|
this.globalCache[cacheName] = initializer();
|
|
return this.globalCache[cacheName];
|
|
}
|
|
};
|
|
|
|
exports.clearGlobalCache = function() {
|
|
this.globalCache = Object.create(null);
|
|
}
|
|
|
|
// Return the named cache object for a tiddler. If the cache doesn't exist then the initializer function is invoked to create it
|
|
exports.getCacheForTiddler = function(title,cacheName,initializer) {
|
|
|
|
// Temporarily disable caching so that tweakParseTreeNode() works
|
|
return initializer();
|
|
|
|
this.caches = this.caches || Object.create(null);
|
|
var caches = this.caches[title];
|
|
if(caches && caches[cacheName]) {
|
|
return caches[cacheName];
|
|
} else {
|
|
if(!caches) {
|
|
caches = Object.create(null);
|
|
this.caches[title] = caches;
|
|
}
|
|
caches[cacheName] = initializer();
|
|
return caches[cacheName];
|
|
}
|
|
};
|
|
|
|
// Clear all caches associated with a particular tiddler
|
|
exports.clearCache = function(title) {
|
|
this.caches = this.caches || Object.create(null);
|
|
if($tw.utils.hop(this.caches,title)) {
|
|
delete this.caches[title];
|
|
}
|
|
};
|
|
|
|
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
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
/*
|
|
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.old_parseText = function(type,text,options) {
|
|
options = options || {};
|
|
// Select a parser
|
|
var Parser = $tw.Wiki.parsers[type];
|
|
if(!Parser && $tw.config.fileExtensionInfo[type]) {
|
|
Parser = $tw.Wiki.parsers[$tw.config.fileExtensionInfo[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
|
|
});
|
|
};
|
|
|
|
/*
|
|
Parse a tiddler according to its MIME type
|
|
*/
|
|
exports.old_parseTiddler = function(title,options) {
|
|
options = $tw.utils.extend({},options);
|
|
var cacheType = options.parseAsInline ? "newInlineParseTree" : "newBlockParseTree",
|
|
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.old_parseText(tiddler.fields.type,tiddler.fields.text,options);
|
|
}) : null;
|
|
};
|
|
|
|
var tweakMacroDefinition = function(nodeList) {
|
|
if(nodeList && nodeList[0] && nodeList[0].type === "macrodef") {
|
|
nodeList[0].type = "set";
|
|
nodeList[0].attributes = {
|
|
name: {type: "string", value: nodeList[0].name},
|
|
value: {type: "string", value: nodeList[0].text}
|
|
};
|
|
nodeList[0].children = nodeList.slice(1);
|
|
nodeList.splice(1,nodeList.length-1);
|
|
tweakMacroDefinition(nodeList[0].children);
|
|
}
|
|
};
|
|
|
|
var tweakParser = function(parser) {
|
|
// Move any macro definitions to contain the body tree
|
|
tweakMacroDefinition(parser.tree);
|
|
};
|
|
|
|
exports.parseText = function(type,text,options) {
|
|
var parser = this.old_parseText(type,text,options);
|
|
if(parser) {
|
|
tweakParser(parser)
|
|
};
|
|
return parser;
|
|
};
|
|
|
|
exports.parseTiddler = function(title,options) {
|
|
var parser = this.old_parseTiddler(title,options);
|
|
if(parser) {
|
|
tweakParser(parser)
|
|
};
|
|
return parser;
|
|
};
|
|
|
|
exports.parseTextReference = function(title,field,index,options) {
|
|
if(field === "text" || (!field && !index)) {
|
|
// Force the tiddler to be lazily loaded
|
|
this.getTiddlerText(title);
|
|
// Parse it
|
|
return this.parseTiddler(title,options);
|
|
} else {
|
|
var text;
|
|
if(field) {
|
|
if(field === "title") {
|
|
text = title;
|
|
} else {
|
|
var tiddler = this.getTiddler(title);
|
|
if(!tiddler || !tiddler.hasField(field)) {
|
|
return null;
|
|
}
|
|
text = tiddler.fields[field];
|
|
}
|
|
return this.parseText("text/vnd.tiddlywiki",text.toString(),options);
|
|
} else if(index) {
|
|
text = this.extractTiddlerDataItem(title,index,"");
|
|
if(text === undefined) {
|
|
return null;
|
|
}
|
|
return this.parseText("text/vnd.tiddlywiki",text,options);
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
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 set variable widgets for each variable
|
|
$tw.utils.each(options.variables,function(value,name) {
|
|
var setVariableWidget = {
|
|
type: "set",
|
|
attributes: {
|
|
name: {type: "string", value: name},
|
|
value: {type: "string", value: value}
|
|
},
|
|
children: []
|
|
};
|
|
currWidgetNode.children = [setVariableWidget];
|
|
currWidgetNode = setVariableWidget;
|
|
});
|
|
// 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() (including parseAsInline)
|
|
*/
|
|
exports.makeTranscludeWidget = function(title,options) {
|
|
options = options || {};
|
|
var parseTree = {tree: [{
|
|
type: "transclude",
|
|
attributes: {
|
|
tiddler: {
|
|
name: "tiddler",
|
|
type: "string",
|
|
value: title}},
|
|
isBlock: !options.parseAsInline}
|
|
]};
|
|
return $tw.wiki.makeWidget(parseTree,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
|
|
literal: If true, searches for literal string, rather than separate search terms
|
|
*/
|
|
exports.search = function(text,options) {
|
|
options = options || {};
|
|
var self = this,t;
|
|
// Convert the search string into a regexp for each term
|
|
var terms, searchTermsRegExps,
|
|
flags = options.caseSensitive ? "" : "i";
|
|
if(options.literal) {
|
|
if(text.length === 0) {
|
|
searchTermsRegExps = null;
|
|
} else {
|
|
searchTermsRegExps = [new RegExp("(" + $tw.utils.escapeRegExp(text) + ")",flags)];
|
|
}
|
|
} else {
|
|
terms = text.split(/ +/);
|
|
if(terms.length === 1 && terms[0] === "") {
|
|
searchTermsRegExps = null;
|
|
} else {
|
|
searchTermsRegExps = [];
|
|
for(t=0; t<terms.length; t++) {
|
|
searchTermsRegExps.push(new RegExp("(" + $tw.utils.escapeRegExp(terms[t]) + ")",flags));
|
|
}
|
|
}
|
|
}
|
|
// Function to check a given tiddler for the search term
|
|
var searchTiddler = function(title) {
|
|
if(!searchTermsRegExps) {
|
|
return true;
|
|
}
|
|
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"],
|
|
match;
|
|
for(var t=0; t<searchTermsRegExps.length; t++) {
|
|
// Search title, tags and body
|
|
match = false;
|
|
if(contentTypeInfo.encoding === "utf8") {
|
|
match = match || searchTermsRegExps[t].test(tiddler.fields.text);
|
|
}
|
|
var tags = tiddler.fields.tags ? tiddler.fields.tags.join("\0") : "";
|
|
match = match || searchTermsRegExps[t].test(tags) || searchTermsRegExps[t].test(tiddler.fields.title);
|
|
if(!match) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
};
|
|
// Loop through all the tiddlers doing the search
|
|
var results = [],
|
|
source = options.source || this.each;
|
|
source(function(tiddler,title) {
|
|
if(!!searchTiddler(title) === !options.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.fields.text !== undefined) {
|
|
// 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;
|
|
}
|
|
};
|
|
|
|
/*
|
|
Read an array of browser File objects, invoking callback(tiddlerFieldsArray) once they're all read
|
|
*/
|
|
exports.readFiles = function(files,callback) {
|
|
var result = [],
|
|
outstanding = files.length;
|
|
for(var f=0; f<files.length; f++) {
|
|
this.readFile(files[f],function(tiddlerFieldsArray) {
|
|
result.push.apply(result,tiddlerFieldsArray);
|
|
if(--outstanding === 0) {
|
|
callback(result);
|
|
}
|
|
});
|
|
};
|
|
return files.length;
|
|
};
|
|
|
|
/*
|
|
Read a browser File object, invoking callback(tiddlerFieldsArray) with an array of tiddler fields objects
|
|
*/
|
|
exports.readFile = function(file,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.config.fileExtensionInfo[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;
|
|
// Create the FileReader
|
|
var reader = new FileReader();
|
|
// Onload
|
|
reader.onload = function(event) {
|
|
// Deserialise the file contents
|
|
var text = event.target.result,
|
|
tiddlerFields = {title: file.name || "Untitled", type: type};
|
|
// Are we binary?
|
|
if(isBinary) {
|
|
// The base64 section starts after the first comma in the data URI
|
|
var commaPos = text.indexOf(",");
|
|
if(commaPos !== -1) {
|
|
tiddlerFields.text = text.substr(commaPos+1);
|
|
callback([tiddlerFields]);
|
|
}
|
|
} else {
|
|
// 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
|
|
$tw.utils.decryptStoreAreaInteractive(encryptedJson,function(tiddlers) {
|
|
callback(tiddlers);
|
|
});
|
|
} else {
|
|
// Otherwise, just try to deserialise any tiddlers in the file
|
|
callback(self.deserializeTiddlers(type,text,tiddlerFields));
|
|
}
|
|
}
|
|
};
|
|
// Kick off the read
|
|
if(isBinary) {
|
|
reader.readAsDataURL(file);
|
|
} else {
|
|
reader.readAsText(file);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Check whether the specified draft tiddler has been modified
|
|
*/
|
|
exports.isDraftModified = function(title) {
|
|
var tiddler = this.getTiddler(title);
|
|
if(!tiddler.isDraft()) {
|
|
return false;
|
|
}
|
|
var ignoredFields = ["created", "modified", "title", "draft.title", "draft.of", "tags"],
|
|
origTiddler = this.getTiddler(tiddler.fields["draft.of"]);
|
|
if(!origTiddler) {
|
|
return true;
|
|
}
|
|
if(tiddler.fields["draft.title"] !== tiddler.fields["draft.of"]) {
|
|
return true;
|
|
}
|
|
if(!$tw.utils.isArrayEqual(tiddler.fields.tags,origTiddler.fields.tags)) {
|
|
return true;
|
|
}
|
|
return !Object.keys(tiddler.fields).every(function(field) {
|
|
if(ignoredFields.indexOf(field) >= 0) {
|
|
return true;
|
|
}
|
|
return tiddler.fields[field] === origTiddler.fields[field];
|
|
});
|
|
};
|
|
|
|
/*
|
|
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 $:/HistoryList)
|
|
*/
|
|
exports.addToHistory = function(title,fromPageRect,historyTitle) {
|
|
historyTitle = historyTitle || "$:/HistoryList";
|
|
var titles = $tw.utils.isArray(title) ? title : [title];
|
|
// Add a new record to the top of the history stack
|
|
var historyList = this.getTiddlerData(historyTitle,[]);
|
|
$tw.utils.each(titles,function(title) {
|
|
historyList.push({title: title, fromPageRect: fromPageRect});
|
|
});
|
|
this.setTiddlerData(historyTitle,historyList,{"current-tiddler": titles[titles.length-1]});
|
|
};
|
|
|
|
})();
|