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802 lines
24 KiB
JavaScript
802 lines
24 KiB
JavaScript
dojo.provide("dojox.atom.widget.FeedViewer");
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dojo.require("dijit._Widget");
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dojo.require("dijit._Templated");
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dojo.require("dijit._Container");
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dojo.require("dojox.atom.io.Connection");
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dojo.requireLocalization("dojox.atom.widget", "FeedViewerEntry");
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dojo.experimental("dojox.atom.widget.FeedViewer");
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dojo.declare("dojox.atom.widget.FeedViewer",[dijit._Widget, dijit._Templated, dijit._Container],{
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// summary:
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// An ATOM feed viewer that allows for viewing a feed, deleting entries, and editing entries.
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// description:
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// An ATOM feed viewer that allows for viewing a feed, deleting entries, and editing entries.
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feedViewerTableBody: null, //The body of the feed viewer table so we can access it and populate it. Will be assigned via template.
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feedViewerTable: null, //The overal table container which contains the feed viewer table. Will be assigned via template.
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entrySelectionTopic: "", //The topic to broadcast when any entry is clicked so that a listener can pick up it and display it.
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url: "", //The URL to which to connect to initially on creation.
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xmethod: false,
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localSaveOnly: false,
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//Templates for the HTML rendering. Need to figure these out better, admittedly.
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templatePath: dojo.moduleUrl("dojox.atom", "widget/templates/FeedViewer.html"),
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_feed: null,
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_currentSelection: null, // Currently selected entry
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_includeFilters: null,
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alertsEnabled: false,
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postCreate: function(){
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// summary:
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// The postCreate function.
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// description:
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// The postCreate function. Creates our AtomIO object for future interactions and subscribes to the
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// event given in markup/creation.
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this._includeFilters = [];
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if (this.entrySelectionTopic !== ""){
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this._subscriptions = [dojo.subscribe(this.entrySelectionTopic, this, "_handleEvent")];
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}
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this.atomIO = new dojox.atom.io.Connection();
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this.childWidgets = [];
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},
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startup: function(){
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// summary:
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// The startup function.
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// description:
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// The startup function. Parses the filters and sets the feed based on the given url.
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this.containerNode = this.feedViewerTableBody;
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var children = this.getDescendants();
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for(var i in children){
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var child = children[i];
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if (child && child.isFilter) {
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this._includeFilters.push(new dojox.atom.widget.FeedViewer.CategoryIncludeFilter(child.scheme, child.term, child.label));
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child.destroy();
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}
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}
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if (this.url !== "") {
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this.setFeedFromUrl(this.url);
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}
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},
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clear: function(){
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// summary:
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// Function clearing all current entries in the feed view.
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// description:
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// Function clearing all current entries in the feed view.
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//
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// returns:
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// Nothing.
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this.destroyDescendants();
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},
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setFeedFromUrl: function(/*string*/url){
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// summary:
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// Function setting the feed from a URL which to get the feed.
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// description:
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// Function setting the dojox.atom.io.model.Feed data into the view.
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//
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// url:
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// The URL to the feed to load.
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//
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// returns:
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// Nothing.
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if (url !== "") {
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if (this._isRelativeURL(url)) {
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var baseUrl = "";
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if (url.charAt(0) !== '/') {
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baseUrl = this._calculateBaseURL(window.location.href, true);
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} else {
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baseUrl = this._calculateBaseURL(window.location.href, false);
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}
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this.url = baseUrl + url;
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}
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this.atomIO.getFeed(url,dojo.hitch(this,this.setFeed));
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}
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},
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setFeed: function(/*object*/feed){
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// summary:
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// Function setting the dojox.atom.io.model.Feed data into the view.
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// description:
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// Function setting the dojox.atom.io.model.Feed data into the view.
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//
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// entry:
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// The dojox.atom.io.model.Feed object to process
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//
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// returns:
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// Nothing.
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this._feed = feed;
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this.clear();
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var entrySorter=function(a,b){
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var dispA = this._displayDateForEntry(a);
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var dispB = this._displayDateForEntry(b);
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if(dispA > dispB){return -1;}
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if(dispA < dispB){return 1;}
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return 0;
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};
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// This function may not be safe in different locales.
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var groupingStr = function(dateStr){
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var dpts = dateStr.split(',');
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dpts.pop(); // remove year and time
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return dpts.join(",");
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};
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var sortedEntries = feed.entries.sort(dojo.hitch(this,entrySorter));
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if (feed){
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var lastSectionTitle = null;
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for (var i=0;i<sortedEntries.length;i++){
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var entry = sortedEntries[i];
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if (this._isFilterAccepted(entry)) {
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var time = this._displayDateForEntry(entry);
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var sectionTitle = "";
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if (time !== null){
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sectionTitle = groupingStr(time.toLocaleString());
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if (sectionTitle === "" ) {
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//Generally an issue on Opera with how its toLocaleString() works, so do a quick and dirty date construction M/D/Y
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sectionTitle = "" + (time.getMonth() + 1) + "/" + time.getDate() + "/" + time.getFullYear();
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}
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}
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if ((lastSectionTitle === null) || (lastSectionTitle != sectionTitle)){
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this.appendGrouping(sectionTitle);
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lastSectionTitle = sectionTitle;
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}
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this.appendEntry(entry);
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}
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}
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}
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},
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_displayDateForEntry: function(/*object*/entry){
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// summary:
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// Internal function for determining the appropriate date to display.
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// description: Internal function for determining of a particular entry is editable.
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//
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// entry:
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// The dojox.atom.io.model.Entry object to examine.
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//
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// returns:
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// An appropriate date for the feed viewer display.
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if (entry.updated){return entry.updated;}
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if (entry.modified){return entry.modified;}
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if (entry.issued){return entry.issued;}
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return new Date();
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},
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appendGrouping: function(/*string*/titleText){
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// summary:
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// Function for appending a new grouping of entries to the feed view.
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// description:
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// Function for appending a grouping of entries to the feed view.
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//
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// entry:
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// The title of the new grouping to create on the view.
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//
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// returns:
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// Nothing.
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var entryWidget = new dojox.atom.widget.FeedViewerGrouping({});
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entryWidget.setText(titleText);
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this.addChild(entryWidget);
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this.childWidgets.push(entryWidget);
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},
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appendEntry: function(/*object*/entry){
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// summary:
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// Function for appending an entry to the feed view.
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// description:
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// Function for appending an entry to the feed view.
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//
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// entry:
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// The dojox.atom.io.model.Entry object to append
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//
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// returns:
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// Nothing.
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var entryWidget = new dojox.atom.widget.FeedViewerEntry({"xmethod": this.xmethod});
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entryWidget.setTitle(entry.title.value);
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entryWidget.setTime(this._displayDateForEntry(entry).toLocaleTimeString());
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entryWidget.entrySelectionTopic = this.entrySelectionTopic;
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entryWidget.feed = this;
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this.addChild(entryWidget);
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this.childWidgets.push(entryWidget);
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this.connect(entryWidget, "onClick", "_rowSelected");
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entry.domNode = entryWidget.entryNode;
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//Need to set up a bi-directional reference here to control events between the two.
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entry._entryWidget = entryWidget;
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entryWidget.entry = entry;
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},
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deleteEntry: function(/*object*/entryRow){
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// summary:
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// Function for deleting a row from the view
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// description:
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// Function for deleting a row from the view
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if(!this.localSaveOnly){
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this.atomIO.deleteEntry(entryRow.entry, dojo.hitch(this, this._removeEntry, entryRow), null, this.xmethod);
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}else{
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this._removeEntry(entryRow, true);
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}
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dojo.publish(this.entrySelectionTopic, [{ action: "delete", source: this, entry: entryRow.entry }]);
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},
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_removeEntry: function(/*FeedViewerEntry*/ entry, /* boolean */success) {
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// summary:
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// callback for when an entry is deleted from a feed.
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// description:
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// callback for when an entry is deleted from a feed.
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if(success) {
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/* Check if this is the last Entry beneath the given date */
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var idx = dojo.indexOf(this.childWidgets, entry);
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var before = this.childWidgets[idx-1];
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var after = this.childWidgets[idx+1];
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if( before.declaredClass === 'dojox.atom.widget.FeedViewerGrouping' &&
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(after === undefined || after.declaredClass === 'dojox.atom.widget.FeedViewerGrouping')){
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before.destroy();
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}
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/* Destroy the FeedViewerEntry to remove it from the view */
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entry.destroy();
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} else {}
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},
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_rowSelected: function(/*object*/evt){
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// summary:
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// Internal function for handling the selection of feed entries.
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// description:
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// Internal function for handling the selection of feed entries.
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//
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// evt:
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// The click event that triggered a selection.
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//
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// returns:
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// Nothing.
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var selectedNode = evt.target;
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while(selectedNode) {
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if(selectedNode.attributes) {
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var widgetid = selectedNode.attributes.getNamedItem("widgetid");
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if(widgetid && widgetid.value.indexOf("FeedViewerEntry") != -1){
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break;
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}
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}
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selectedNode = selectedNode.parentNode;
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}
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for (var i=0;i<this._feed.entries.length;i++){
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var entry = this._feed.entries[i];
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if( (selectedNode === entry.domNode) && (this._currentSelection !== entry) ){
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//Found it and it isn't already selected.
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dojo.addClass(entry.domNode, "feedViewerEntrySelected");
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dojo.removeClass(entry._entryWidget.timeNode, "feedViewerEntryUpdated");
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dojo.addClass(entry._entryWidget.timeNode, "feedViewerEntryUpdatedSelected");
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this.onEntrySelected(entry);
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if (this.entrySelectionTopic !== "") {
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dojo.publish(this.entrySelectionTopic, [{ action: "set", source: this, feed: this._feed, entry: entry }]);
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}
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if (this._isEditable(entry)) {
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entry._entryWidget.enableDelete();
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}
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this._deselectCurrentSelection();
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this._currentSelection = entry;
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break;
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} else if ( (selectedNode === entry.domNode) && (this._currentSelection === entry) ) {
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//Found it and it is the current selection, we just want to de-select it so users can 'unselect rows' if they want.
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dojo.publish(this.entrySelectionTopic, [{ action: "delete", source: this, entry: entry }]);
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this._deselectCurrentSelection();
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break;
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}
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}
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},
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_deselectCurrentSelection: function(){
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// summary:
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// Internal function for unselecting the current selection.
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// description:
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// Internal function for unselecting the current selection.
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//
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// returns:
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// Nothing.
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if (this._currentSelection) {
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dojo.addClass(this._currentSelection._entryWidget.timeNode, "feedViewerEntryUpdated");
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dojo.removeClass(this._currentSelection.domNode, "feedViewerEntrySelected");
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dojo.removeClass(this._currentSelection._entryWidget.timeNode, "feedViewerEntryUpdatedSelected");
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this._currentSelection._entryWidget.disableDelete();
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this._currentSelection = null;
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}
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},
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_isEditable: function(/*object*/entry) {
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// summary:
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// Internal function for determining of a particular entry is editable.
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// description:
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// Internal function for determining of a particular entry is editable.
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// This is used for determining if the delete action should be displayed or not.
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//
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// entry:
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// The dojox.atom.io.model.Entry object to examine
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//
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// returns:
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// Boolean denoting if the entry seems editable or not..
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var retVal = false;
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if (entry && entry !== null && entry.links && entry.links !== null) {
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for(var x in entry.links){
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if(entry.links[x].rel && entry.links[x].rel == "edit"){
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retVal = true;
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break;
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}
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}
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}
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return retVal;
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},
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onEntrySelected: function(/*object*/entry){
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// summary:
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// Function intended for over-riding/replacement as an attachpoint to for other items to recieve
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// selection notification.
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// description: Function intended for over0-riding/replacement as an attachpoint to for other items to recieve
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// selection notification.
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//
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// entry:
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// The dojox.atom.io.model.Entry object selected.
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//
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// returns:
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// Nothing.
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},
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_isRelativeURL: function(/*string*/url) {
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// summary:
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// Method to determine if the URL is relative or absolute.
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// description:
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// Method to determine if the URL is relative or absolute. Basic assumption is if it doesn't start
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// with http:// or file://, it's relative to the current document.
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//
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// url:
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// The URL to inspect.
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//
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// returns:
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// boolean indicating whether it's a relative url or not.
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function isFileURL(url)
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{
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var retVal = false;
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if (url.indexOf("file://") === 0) {
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retVal = true;
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}
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return retVal;
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}
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function isHttpURL(url)
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{
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var retVal = false;
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if (url.indexOf("http://") === 0) {
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retVal = true;
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}
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return retVal;
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}
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var retVal = false;
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if (url !== null) {
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if (!isFileURL(url) && !isHttpURL(url)) {
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retVal = true;
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}
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}
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return retVal;
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},
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_calculateBaseURL: function(/*string*/fullURL, /*boolean*/currentPageRelative) {
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// summary:
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// Internal function to calculate a baseline URL from the provided full URL.
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// description:
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// Internal function to calculate a baseline URL from the provided full URL.
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//
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// fullURL:
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// The full URL as a string.
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// currentPageRelative:
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// Flag to denote of the base URL should be calculated as just the server base, or relative to the current page/location in the URL.
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//
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// returns:
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// String of the baseline URL
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var baseURL = null;
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if (fullURL !== null) {
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//Check to see if we need to strip off any query parameters from the URL.
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var index = fullURL.indexOf("?");
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if(index != -1){
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fullURL = fullURL.substring(0,index);
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//console.debug("Removed query parameters. URL now: " + fullURL);
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}
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if(currentPageRelative){
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//Relative to the 'current page' in the URL, so we need to trim that off.
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//Now we need to trim if necessary. If it ends in /, then we don't have a filename to trim off
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//so we can return.
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index = fullURL.lastIndexOf("/");
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if((index > 0) && (index < fullURL.length) && (index !== (fullURL.length -1))){
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//We want to include the terminating /
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baseURL = fullURL.substring(0,(index + 1));
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}else{
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baseURL = fullURL;
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}
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}else{
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//We want to find the first occurance of / after the <protocol>://
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index = fullURL.indexOf("://");
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if(index > 0){
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index = index + 3;
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var protocol = fullURL.substring(0,index);
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var fragmentURL = fullURL.substring(index, fullURL.length);
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index = fragmentURL.indexOf("/");
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if((index < fragmentURL.length) && (index > 0) ){
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baseURL = protocol + fragmentURL.substring(0,index);
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}else{
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baseURL = protocol + fragmentURL;
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}
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}
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}
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}
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return baseURL;
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},
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_isFilterAccepted: function(/*object*/entry) {
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// summary:
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// Internal function to do matching of category filters to widgets.
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// description:
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// Internal function to do matching of category filters to widgets.
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//
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// returns:
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// boolean denoting if this entry matched one of the accept filters.
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var accepted = false;
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if (this._includeFilters && (this._includeFilters.length > 0)) {
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for (var i = 0; i < this._includeFilters.length; i++) {
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var filter = this._includeFilters[i];
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if (filter.match(entry)) {
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accepted = true;
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break;
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}
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}
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}
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else {
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accepted = true;
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}
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return accepted;
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},
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addCategoryIncludeFilter: function(/*object*/filter) {
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// summary:
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// Function to add a filter for entry inclusion in the feed view.
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// description:
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// Function to add a filter for entry inclusion in the feed view.
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//
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// filter:
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// The basic items to filter on and the values.
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// Should be of format: {scheme: <some text or null>, term: <some text or null>, label: <some text or null>}
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//
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// returns:
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// Nothing.
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if (filter) {
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var scheme = filter.scheme;
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var term = filter.term;
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var label = filter.label;
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var addIt = true;
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if (!scheme) {
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scheme = null;
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}
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if (!term) {
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scheme = null;
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}
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if (!label) {
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scheme = null;
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}
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if (this._includeFilters && this._includeFilters.length > 0) {
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for (var i = 0; i < this._includeFilters.length; i++) {
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var eFilter = this._includeFilters[i];
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if ((eFilter.term === term) && (eFilter.scheme === scheme) && (eFilter.label === label)) {
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//Verify we don't have this filter already.
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addIt = false;
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break;
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}
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}
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}
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if (addIt) {
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this._includeFilters.push(dojox.atom.widget.FeedViewer.CategoryIncludeFilter(scheme, term, label));
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}
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}
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},
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removeCategoryIncludeFilter: function(/*object*/filter) {
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// summary:
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// Function to remove a filter for entry inclusion in the feed view.
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// description:
|
|
// Function to remove a filter for entry inclusion in the feed view.
|
|
//
|
|
// filter:
|
|
// The basic items to identify the filter that is present.
|
|
// Should be of format: {scheme: <some text or null>, term: <some text or null>, label: <some text or null>}
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
if (filter) {
|
|
var scheme = filter.scheme;
|
|
var term = filter.term;
|
|
var label = filter.label;
|
|
|
|
if (!scheme) {
|
|
scheme = null;
|
|
}
|
|
if (!term) {
|
|
scheme = null;
|
|
}
|
|
if (!label) {
|
|
scheme = null;
|
|
}
|
|
|
|
var newFilters = [];
|
|
if (this._includeFilters && this._includeFilters.length > 0) {
|
|
for (var i = 0; i < this._includeFilters.length; i++) {
|
|
var eFilter = this._includeFilters[i];
|
|
if (!((eFilter.term === term) && (eFilter.scheme === scheme) && (eFilter.label === label))) {
|
|
//Keep only filters that do not match
|
|
newFilters.push(eFilter);
|
|
}
|
|
}
|
|
this._includeFilters = newFilters;
|
|
}
|
|
}
|
|
},
|
|
|
|
_handleEvent: function(/*object*/entrySelectionEvent) {
|
|
// summary:
|
|
// Internal function for listening to a topic that will handle entry notification.
|
|
// description:
|
|
// Internal function for listening to a topic that will handle entry notification.
|
|
//
|
|
// entrySelectionEvent:
|
|
// The topic message containing the entry that was selected for view.
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
if(entrySelectionEvent.source != this) {
|
|
if(entrySelectionEvent.action == "update" && entrySelectionEvent.entry) {
|
|
var evt = entrySelectionEvent;
|
|
if(!this.localSaveOnly){
|
|
this.atomIO.updateEntry(evt.entry, dojo.hitch(evt.source,evt.callback), null, true);
|
|
}
|
|
this._currentSelection._entryWidget.setTime(this._displayDateForEntry(evt.entry).toLocaleTimeString());
|
|
this._currentSelection._entryWidget.setTitle(evt.entry.title.value);
|
|
} else if(entrySelectionEvent.action == "post" && entrySelectionEvent.entry) {
|
|
if(!this.localSaveOnly){
|
|
this.atomIO.addEntry(entrySelectionEvent.entry, this.url, dojo.hitch(this,this._addEntry));
|
|
}else{
|
|
this._addEntry(entrySelectionEvent.entry);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_addEntry: function(/*object*/entry) {
|
|
// summary:
|
|
// callback function used when adding an entry to the feed.
|
|
// description:
|
|
// callback function used when adding an entry to the feed. After the entry has been posted to the feed,
|
|
// we add it to our feed representation (to show it on the page) and publish an event to update any entry viewers.
|
|
this._feed.addEntry(entry);
|
|
this.setFeed(this._feed);
|
|
dojo.publish(this.entrySelectionTopic, [{ action: "set", source: this, feed: this._feed, entry: entry }]);
|
|
},
|
|
|
|
destroy: function(){
|
|
// summary:
|
|
// Destroys this widget, including all descendants and subscriptions.
|
|
// description:
|
|
// Destroys this widget, including all descendants and subscriptions.
|
|
this.clear();
|
|
dojo.forEach(this._subscriptions, dojo.unsubscribe);
|
|
}
|
|
});
|
|
|
|
dojo.declare("dojox.atom.widget.FeedViewerEntry",[dijit._Widget, dijit._Templated],{
|
|
// summary:
|
|
// Widget for handling the display of an entry and specific events associated with it.
|
|
// description: Widget for handling the display of an entry and specific events associated with it.
|
|
|
|
templatePath: dojo.moduleUrl("dojox.atom", "widget/templates/FeedViewerEntry.html"),
|
|
|
|
entryNode: null,
|
|
timeNode: null,
|
|
deleteButton: null,
|
|
entry: null,
|
|
feed: null,
|
|
|
|
postCreate: function(){
|
|
var _nlsResources = dojo.i18n.getLocalization("dojox.atom.widget", "FeedViewerEntry");
|
|
this.deleteButton.innerHTML = _nlsResources.deleteButton;
|
|
},
|
|
|
|
setTitle: function(/*string*/text){
|
|
// summary:
|
|
// Function to set the title of the entry.
|
|
// description:
|
|
// Function to set the title of the entry.
|
|
//
|
|
// text:
|
|
// The title.
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
if (this.titleNode.lastChild){this.titleNode.removeChild(this.titleNode.lastChild);}
|
|
|
|
var titleTextNode = document.createElement("div");
|
|
titleTextNode.innerHTML = text;
|
|
this.titleNode.appendChild(titleTextNode);
|
|
},
|
|
|
|
setTime: function(/*string*/timeText){
|
|
// summary:
|
|
// Function to set the time of the entry.
|
|
// description:
|
|
// Function to set the time of the entry.
|
|
//
|
|
// timeText:
|
|
// The string form of the date.
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
if (this.timeNode.lastChild){this.timeNode.removeChild(this.timeNode.lastChild);}
|
|
var timeTextNode = document.createTextNode(timeText);
|
|
this.timeNode.appendChild(timeTextNode);
|
|
},
|
|
|
|
enableDelete: function(){
|
|
// summary:
|
|
// Function to enable the delete action on this entry.
|
|
// description:
|
|
// Function to enable the delete action on this entry.
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
if (this.deleteButton !== null) {
|
|
//TODO Fix this
|
|
this.deleteButton.style.display = 'inline';
|
|
}
|
|
},
|
|
|
|
disableDelete: function(){
|
|
// summary:
|
|
// Function to disable the delete action on this entry.
|
|
// description:
|
|
// Function to disable the delete action on this entry.
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
if (this.deleteButton !== null) {
|
|
this.deleteButton.style.display = 'none';
|
|
}
|
|
},
|
|
|
|
deleteEntry: function(/*object*/event) {
|
|
// summary:
|
|
// Function to handle the delete event and delete the entry.
|
|
// description:
|
|
// Function to handle the delete event and delete the entry.
|
|
//
|
|
// returns:
|
|
// Nothing.
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
this.feed.deleteEntry(this);
|
|
},
|
|
|
|
onClick: function(/*object*/e){
|
|
// summary:
|
|
// Attach point for when a row is clicked on.
|
|
// description:
|
|
// Attach point for when a row is clicked on.
|
|
//
|
|
// e:
|
|
// The event generated by the click.
|
|
}
|
|
});
|
|
|
|
dojo.declare("dojox.atom.widget.FeedViewerGrouping",[dijit._Widget, dijit._Templated],{
|
|
// summary:
|
|
// Grouping of feed entries.
|
|
// description:
|
|
// Grouping of feed entries.
|
|
templatePath: dojo.moduleUrl("dojox.atom", "widget/templates/FeedViewerGrouping.html"),
|
|
|
|
groupingNode: null,
|
|
titleNode: null,
|
|
|
|
setText: function(text){
|
|
// summary:
|
|
// Sets the text to be shown above this grouping.
|
|
// description:
|
|
// Sets the text to be shown above this grouping.
|
|
//
|
|
// text:
|
|
// The text to show.
|
|
if (this.titleNode.lastChild){this.titleNode.removeChild(this.titleNode.lastChild);}
|
|
var textNode = document.createTextNode(text);
|
|
this.titleNode.appendChild(textNode);
|
|
}
|
|
});
|
|
|
|
dojo.declare("dojox.atom.widget.AtomEntryCategoryFilter",[dijit._Widget, dijit._Templated],{
|
|
// summary:
|
|
// A filter to be applied to the list of entries.
|
|
// description:
|
|
// A filter to be applied to the list of entries.
|
|
scheme: "",
|
|
term: "",
|
|
label: "",
|
|
isFilter: true
|
|
});
|
|
|
|
dojo.declare("dojox.atom.widget.FeedViewer.CategoryIncludeFilter",null,{
|
|
constructor: function(scheme, term, label){
|
|
// summary:
|
|
// The initializer function.
|
|
// description:
|
|
// The initializer function.
|
|
this.scheme = scheme;
|
|
this.term = term;
|
|
this.label = label;
|
|
},
|
|
|
|
match: function(entry) {
|
|
// summary:
|
|
// Function to determine if this category filter matches against a category on an atom entry
|
|
// description:
|
|
// Function to determine if this category filter matches against a category on an atom entry
|
|
//
|
|
// returns:
|
|
// boolean denoting if this category filter matched to this entry.
|
|
var matched = false;
|
|
if (entry !== null) {
|
|
var categories = entry.categories;
|
|
if (categories !== null) {
|
|
for (var i = 0; i < categories.length; i++) {
|
|
var category = categories[i];
|
|
|
|
if (this.scheme !== "") {
|
|
if (this.scheme !== category.scheme) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (this.term !== "") {
|
|
if (this.term !== category.term) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (this.label !== "") {
|
|
if (this.label !== category.label) {
|
|
break;
|
|
}
|
|
}
|
|
//Made it this far, everything matched.
|
|
matched = true;
|
|
}
|
|
}
|
|
}
|
|
return matched;
|
|
}
|
|
});
|