143 lines
3.2 KiB
JavaScript
143 lines
3.2 KiB
JavaScript
var Changeset = require("../Changeset");
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var AttributePoolFactory = require("../AttributePoolFactory");
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var db = require("../db").db;
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var async = require("async");
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var settings = require('../settings');
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/**
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* Copied from the Etherpad source code, don't know what its good for
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* @param txt
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*/
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exports.cleanText = function (txt) {
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return txt.replace(/\r\n/g,'\n').replace(/\r/g,'\n').replace(/\t/g, ' ').replace(/\xa0/g, ' ');
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}
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Class('Pad', {
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// these are the properties
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has : {
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atext : {
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is : 'rw', // readwrite
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init : function() { return Changeset.makeAText("\n"); } // first value
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}, // atext
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pool : {
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is: 'rw',
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init : function() { return AttributePoolFactory.createAttributePool(); },
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getterName : 'apool' // legacy
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}, // pool
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head : {
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is : 'rw',
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init : -1,
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getterName : 'getHeadRevisionNumber'
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}, // head
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id : { is : 'r' }
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},
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methods : {
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BUILD : function (id)
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{
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return {
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'id' : id,
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}
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},
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appendRevision : function(aChangeset, author)
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{
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if(!author)
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author = '';
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var newAText = Changeset.applyToAText(aChangeset, this.atext, this.pool);
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Changeset.copyAText(newAText, this.atext);
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var newRev = ++this.head;
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var newRevData = {};
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newRevData.changeset = aChangeset;
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newRevData.meta = {};
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newRevData.meta.author = author;
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newRevData.meta.timestamp = new Date().getTime();
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//ex. getNumForAuthor
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if(author != '')
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this.pool.putAttrib(['author', author || '']);
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if(newRev % 100 == 0)
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{
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newRevData.meta.atext = this.atext;
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}
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db.set("pad:"+this.id+":revs:"+newRev, newRevData);
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db.set("pad:"+this.id, {atext: this.atext, pool: this.pool.toJsonable(), head: this.head});
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}, //appendRevision
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getRevisionChangeset : function(revNum, callback)
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{
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db.getSub("pad:"+this.id+":revs:"+revNum, ["changeset"], callback);
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}, // getRevisionChangeset
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getRevisionAuthor : function(revNum, callback)
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{
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db.getSub("pad:"+this.id+":revs:"+revNum, ["meta", "author"], callback);
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}, // getRevisionAuthor
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getAllAuthors : function()
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{
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var authors = [];
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for(key in this.pool.numToAttrib)
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{
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if(this.pool.numToAttrib[key][0] == "author" && this.pool.numToAttrib[key][1] != "")
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{
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authors.push(this.pool.numToAttrib[key][1]);
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}
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}
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return authors;
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},
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text : function()
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{
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return this.atext.text;
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},
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init : function (callback)
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{
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var _this = this;
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//try to load the pad
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db.get("pad:"+this.id, function(err, value)
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{
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if(err)
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{
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callback(err, null);
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return;
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}
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//if this pad exists, load it
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if(value != null)
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{
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_this.head = value.head;
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_this.atext = value.atext;
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_this.pool = _this.pool.fromJsonable(value.pool);
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}
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//this pad doesn't exist, so create it
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else
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{
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var firstChangeset = Changeset.makeSplice("\n", 0, 0, exports.cleanText(settings.defaultPadText));
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_this.appendRevision(firstChangeset, '');
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}
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callback(null);
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});
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}
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}, // methods
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});
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