The Tor Browser: comparison browser/metro/base/content/startui/HistoryView.js

comparison: browser/metro/base/content/startui/HistoryView.js

browser/metro/base/content/startui/HistoryView.js

changeset 0: 6474c204b198

equal deleted inserted replaced

--1:000000000000
+:eaec934394bf
+/* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+'use strict';
+function HistoryView(aSet, aFilterUnpinned) {
+View.call(this, aSet);
+this._inBatch = 0;
+// View monitors this for maximum tile display counts
+this.tilePrefName = "browser.display.startUI.history.maxresults";
+this.showing = this.maxTiles > 0;
+this._filterUnpinned = aFilterUnpinned;
+this._historyService = PlacesUtils.history;
+this._navHistoryService = gHistSvc;
+this._pinHelper = new ItemPinHelper("metro.history.unpinned");
+this._historyService.addObserver(this, false);
+StartUI.chromeWin.addEventListener('MozAppbarDismissing', this, false);
+StartUI.chromeWin.addEventListener('HistoryNeedsRefresh', this, false);
+window.addEventListener("TabClose", this, true);
+}
+HistoryView.prototype = Util.extend(Object.create(View.prototype), {
+_set: null,
+_toRemove: null,
+// For View's showing property
+get vbox() {
+return document.getElementById("start-history");
+},
+destruct: function destruct() {
+this._historyService.removeObserver(this);
+if (StartUI.chromeWin) {
+StartUI.chromeWin.removeEventListener('MozAppbarDismissing', this, false);
+StartUI.chromeWin.removeEventListener('HistoryNeedsRefresh', this, false);
+}
+View.prototype.destruct.call(this);
+},
+refreshView: function () {
+this.onClearHistory();
+this.populateGrid();
+},
+handleItemClick: function tabview_handleItemClick(aItem) {
+let url = aItem.getAttribute("value");
+StartUI.goToURI(url);
+},
+populateGrid: function populateGrid(aRefresh) {
+this._inBatch++; // always batch up grid updates to avoid redundant arrangeItems calls
+let query = this._navHistoryService.getNewQuery();
+let options = this._navHistoryService.getNewQueryOptions();
+options.excludeQueries = true;
+options.queryType = options.QUERY_TYPE_HISTORY;
+options.resultType = options.RESULTS_AS_URI;
+options.sortingMode = options.SORT_BY_DATE_DESCENDING;
+let limit = this.maxTiles;
+let result = this._navHistoryService.executeQuery(query, options);
+let rootNode = result.root;
+rootNode.containerOpen = true;
+let childCount = rootNode.childCount;
+for (let i = 0, addedCount = 0; i < childCount && addedCount < limit; i++) {
+let node = rootNode.getChild(i);
+let uri = node.uri;
+let title = (node.title && node.title.length) ? node.title : uri;
+// If item is marked for deletion, skip it.
+if (this._toRemove && this._toRemove.indexOf(uri) !== -1)
+continue;
+let items = this._set.getItemsByUrl(uri);
+// Item has been unpinned, skip if filterUnpinned set.
+if (this._filterUnpinned && !this._pinHelper.isPinned(uri)) {
+if (items.length > 0)
+this.removeHistory(uri);
+continue;
+}
+if (!aRefresh || items.length === 0) {
+// If we're not refreshing or the item is not in the grid, add it.
+this.addItemToSet(uri, title, node.icon, addedCount);
+} else if (aRefresh && items.length > 0) {
+// Update context action in case it changed in another view.
+for (let item of items) {
+this._setContextActions(item);
+}
+}
+addedCount++;
+}
+// Remove extra items in case a refresh added more than the limit.
+// This can happen when undoing a delete.
+if (aRefresh) {
+while (this._set.itemCount > limit)
+this._set.removeItemAt(this._set.itemCount - 1);
+}
+rootNode.containerOpen = false;
+this._set.arrangeItems();
+if (this._inBatch > 0)
+this._inBatch--;
+},
+addItemToSet: function addItemToSet(aURI, aTitle, aIcon, aPos) {
+let item = this._set.insertItemAt(aPos || 0, aTitle, aURI, this._inBatch);
+this._setContextActions(item);
+this._updateFavicon(item, aURI);
+},
+_setContextActions: function bv__setContextActions(aItem) {
+let uri = aItem.getAttribute("value");
+aItem.setAttribute("data-contextactions", "delete," + (this._pinHelper.isPinned(uri) ? "hide" : "pin"));
+if ("refresh" in aItem) aItem.refresh();
+},
+_sendNeedsRefresh: function bv__sendNeedsRefresh(){
+// Event sent when all views need to refresh.
+let event = document.createEvent("Events");
+event.initEvent("HistoryNeedsRefresh", true, false);
+window.dispatchEvent(event);
+},
+removeHistory: function (aUri) {
+let items = this._set.getItemsByUrl(aUri);
+for (let item of items)
+this._set.removeItem(item, true);
+if (!this._inBatch)
+this._set.arrangeItems();
+},
+doActionOnSelectedTiles: function bv_doActionOnSelectedTiles(aActionName, aEvent) {
+let tileGroup = this._set;
+let selectedTiles = tileGroup.selectedItems;
+// just arrange the grid once at the end of any action handling
+this._inBatch = true;
+switch (aActionName){
+case "delete":
+Array.forEach(selectedTiles, function(aNode) {
+if (!this._toRemove) {
+this._toRemove = [];
+}
+let uri = aNode.getAttribute("value");
+this._toRemove.push(uri);
+this.removeHistory(uri);
+}, this);
+// stop the appbar from dismissing
+aEvent.preventDefault();
+// at next tick, re-populate the context appbar.
+setTimeout(function(){
+// fire a MozContextActionsChange event to update the context appbar
+let event = document.createEvent("Events");
+// we need the restore button to show (the tile node will go away though)
+event.actions = ["restore"];
+event.initEvent("MozContextActionsChange", true, false);
+tileGroup.dispatchEvent(event);
+}, 0);
+break;
+case "restore":
+// clear toRemove and let _sendNeedsRefresh update the items.
+this._toRemove = null;
+break;
+case "unpin":
+Array.forEach(selectedTiles, function(aNode) {
+let uri = aNode.getAttribute("value");
+if (this._filterUnpinned)
+this.removeHistory(uri);
+this._pinHelper.setUnpinned(uri);
+}, this);
+break;
+case "pin":
+Array.forEach(selectedTiles, function(aNode) {
+let uri = aNode.getAttribute("value");
+this._pinHelper.setPinned(uri);
+}, this);
+break;
+default:
+this._inBatch = false;
+return;
+}
+this._inBatch = false;
+// Send refresh event so all view are in sync.
+this._sendNeedsRefresh();
+},
+handleEvent: function bv_handleEvent(aEvent) {
+switch (aEvent.type){
+case "MozAppbarDismissing":
+// If undo wasn't pressed, time to do definitive actions.
+if (this._toRemove) {
+for (let uri of this._toRemove) {
+this._historyService.removePage(NetUtil.newURI(uri));
+}
+// Clear context app bar
+let event = document.createEvent("Events");
+event.actions = [];
+event.initEvent("MozContextActionsChange", true, false);
+this._set.dispatchEvent(event);
+this._toRemove = null;
+}
+break;
+case "HistoryNeedsRefresh":
+this.populateGrid(true);
+break;
+case "TabClose":
+// Flush any pending actions - appbar will call us back
+// before this returns with 'MozAppbarDismissing' above.
+StartUI.chromeWin.ContextUI.dismissContextAppbar();
+break;
+}
+},
+// nsINavHistoryObserver & helpers
+onBeginUpdateBatch: function() {
+// Avoid heavy grid redraws while a batch is in process
+this._inBatch++;
+},
+onEndUpdateBatch: function() {
+this.populateGrid(true);
+if (this._inBatch > 0) {
+this._inBatch--;
+this._set.arrangeItems();
+}
+},
+onVisit: function(aURI, aVisitID, aTime, aSessionID,
+aReferringID, aTransitionType) {
+if (!this._inBatch) {
+this.populateGrid(true);
+}
+},
+onTitleChanged: function(aURI, aPageTitle) {
+let changedItems = this._set.getItemsByUrl(aURI.spec);
+for (let item of changedItems) {
+item.setAttribute("label", aPageTitle);
+}
+},
+onDeleteURI: function(aURI) {
+this.removeHistory(aURI.spec);
+},
+onClearHistory: function() {
+if ('clearAll' in this._set)
+this._set.clearAll();
+},
+onPageChanged: function(aURI, aWhat, aValue) {
+if (aWhat ==  Ci.nsINavHistoryObserver.ATTRIBUTE_FAVICON) {
+let changedItems = this._set.getItemsByUrl(aURI.spec);
+for (let item of changedItems) {
+let currIcon = item.getAttribute("iconURI");
+if (currIcon != aValue) {
+item.setAttribute("iconURI", aValue);
+if ("refresh" in item)
+item.refresh();
+}
+}
+}
+},
+onDeleteVisits: function (aURI, aVisitTime, aGUID, aReason, aTransitionType) {
+if ((aReason ==  Ci.nsINavHistoryObserver.REASON_DELETED) && !this._inBatch) {
+this.populateGrid(true);
+}
+},
+QueryInterface: function(iid) {
+if (iid.equals(Components.interfaces.nsINavHistoryObserver) ||
+iid.equals(Components.interfaces.nsISupports)) {
+return this;
+}
+throw Cr.NS_ERROR_NO_INTERFACE;
+}
+});
+let HistoryStartView = {
+_view: null,
+get _grid() { return document.getElementById("start-history-grid"); },
+init: function init() {
+this._view = new HistoryView(this._grid, true);
+this._view.populateGrid();
+this._grid.removeAttribute("fade");
+},
+uninit: function uninit() {
+if (this._view) {
+this._view.destruct();
+}
+}
+};