forked from mirrors/gecko-dev
1048 lines
32 KiB
JavaScript
1048 lines
32 KiB
JavaScript
/*
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#ifdef 0
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#endif
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*/
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/**
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* Tab previews utility, produces thumbnails
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*/
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var tabPreviews = {
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aspectRatio: 0.5625, // 16:9
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get width() {
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delete this.width;
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return this.width = Math.ceil(screen.availWidth / 5.75);
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},
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get height() {
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delete this.height;
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return this.height = Math.round(this.width * this.aspectRatio);
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},
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init: function tabPreviews_init() {
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if (this._selectedTab)
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return;
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this._selectedTab = gBrowser.selectedTab;
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gBrowser.tabContainer.addEventListener("TabSelect", this, false);
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gBrowser.tabContainer.addEventListener("SSTabRestored", this, false);
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},
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get: function tabPreviews_get(aTab) {
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let uri = aTab.linkedBrowser.currentURI.spec;
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if (aTab.__thumbnail_lastURI &&
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aTab.__thumbnail_lastURI != uri) {
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aTab.__thumbnail = null;
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aTab.__thumbnail_lastURI = null;
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}
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if (aTab.__thumbnail)
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return aTab.__thumbnail;
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if (aTab.getAttribute("pending") == "true") {
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let img = new Image;
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img.src = PageThumbs.getThumbnailURL(uri);
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return img;
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}
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return this.capture(aTab, !aTab.hasAttribute("busy"));
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},
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capture: function tabPreviews_capture(aTab, aStore) {
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var thumbnail = document.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
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thumbnail.mozOpaque = true;
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thumbnail.height = this.height;
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thumbnail.width = this.width;
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var ctx = thumbnail.getContext("2d");
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var win = aTab.linkedBrowser.contentWindow;
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var snippetWidth = win.innerWidth * .6;
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var scale = this.width / snippetWidth;
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ctx.scale(scale, scale);
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ctx.drawWindow(win, win.scrollX, win.scrollY,
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snippetWidth, snippetWidth * this.aspectRatio, "rgb(255,255,255)");
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if (aStore) {
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aTab.__thumbnail = thumbnail;
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aTab.__thumbnail_lastURI = aTab.linkedBrowser.currentURI.spec;
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}
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return thumbnail;
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},
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handleEvent: function tabPreviews_handleEvent(event) {
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switch (event.type) {
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case "TabSelect":
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if (this._selectedTab &&
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this._selectedTab.parentNode &&
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!this._pendingUpdate) {
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// Generate a thumbnail for the tab that was selected.
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// The timeout keeps the UI snappy and prevents us from generating thumbnails
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// for tabs that will be closed. During that timeout, don't generate other
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// thumbnails in case multiple TabSelect events occur fast in succession.
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this._pendingUpdate = true;
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setTimeout(function (self, aTab) {
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self._pendingUpdate = false;
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if (aTab.parentNode && !aTab.hasAttribute("busy"))
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self.capture(aTab, true);
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}, 2000, this, this._selectedTab);
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}
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this._selectedTab = event.target;
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break;
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case "SSTabRestored":
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this.capture(event.target, true);
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break;
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}
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}
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};
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var tabPreviewPanelHelper = {
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opening: function (host) {
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host.panel.hidden = false;
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var handler = this._generateHandler(host);
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host.panel.addEventListener("popupshown", handler, false);
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host.panel.addEventListener("popuphiding", handler, false);
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host._prevFocus = document.commandDispatcher.focusedElement;
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},
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_generateHandler: function (host) {
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var self = this;
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return function (event) {
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if (event.target == host.panel) {
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host.panel.removeEventListener(event.type, arguments.callee, false);
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self["_" + event.type](host);
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}
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};
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},
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_popupshown: function (host) {
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if ("setupGUI" in host)
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host.setupGUI();
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},
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_popuphiding: function (host) {
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if ("suspendGUI" in host)
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host.suspendGUI();
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if (host._prevFocus) {
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Cc["@mozilla.org/focus-manager;1"]
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.getService(Ci.nsIFocusManager)
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.setFocus(host._prevFocus, Ci.nsIFocusManager.FLAG_NOSCROLL);
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host._prevFocus = null;
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} else
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gBrowser.selectedBrowser.focus();
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if (host.tabToSelect) {
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gBrowser.selectedTab = host.tabToSelect;
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host.tabToSelect = null;
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}
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}
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};
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/**
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* Ctrl-Tab panel
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*/
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var ctrlTab = {
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get panel () {
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delete this.panel;
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return this.panel = document.getElementById("ctrlTab-panel");
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},
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get showAllButton () {
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delete this.showAllButton;
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return this.showAllButton = document.getElementById("ctrlTab-showAll");
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},
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get previews () {
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delete this.previews;
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return this.previews = this.panel.getElementsByClassName("ctrlTab-preview");
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},
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get recentlyUsedLimit () {
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delete this.recentlyUsedLimit;
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return this.recentlyUsedLimit = gPrefService.getIntPref("browser.ctrlTab.recentlyUsedLimit");
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},
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get keys () {
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var keys = {};
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["close", "find", "selectAll"].forEach(function (key) {
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keys[key] = document.getElementById("key_" + key)
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.getAttribute("key")
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.toLocaleLowerCase().charCodeAt(0);
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});
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delete this.keys;
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return this.keys = keys;
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},
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_selectedIndex: 0,
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get selected () this._selectedIndex < 0 ?
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document.activeElement :
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this.previews.item(this._selectedIndex),
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get isOpen () this.panel.state == "open" || this.panel.state == "showing" || this._timer,
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get tabCount () this.tabList.length,
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get tabPreviewCount () Math.min(this.previews.length - 1, this.tabCount),
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get canvasWidth () Math.min(tabPreviews.width,
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Math.ceil(screen.availWidth * .85 / this.tabPreviewCount)),
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get canvasHeight () Math.round(this.canvasWidth * tabPreviews.aspectRatio),
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get tabList () {
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if (this._tabList)
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return this._tabList;
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// Using gBrowser.tabs instead of gBrowser.visibleTabs, as the latter
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// exlcudes closing tabs, breaking the following loop in case the the
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// selected tab is closing.
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let list = Array.filter(gBrowser.tabs, function (tab) !tab.hidden);
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// Rotate the list until the selected tab is first
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while (!list[0].selected)
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list.push(list.shift());
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list = list.filter(function (tab) !tab.closing);
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if (this.recentlyUsedLimit != 0) {
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let recentlyUsedTabs = [];
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for (let tab of this._recentlyUsedTabs) {
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if (!tab.hidden && !tab.closing) {
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recentlyUsedTabs.push(tab);
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if (this.recentlyUsedLimit > 0 && recentlyUsedTabs.length >= this.recentlyUsedLimit)
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break;
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}
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}
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for (let i = recentlyUsedTabs.length - 1; i >= 0; i--) {
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list.splice(list.indexOf(recentlyUsedTabs[i]), 1);
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list.unshift(recentlyUsedTabs[i]);
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}
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}
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return this._tabList = list;
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},
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init: function ctrlTab_init() {
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if (!this._recentlyUsedTabs) {
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tabPreviews.init();
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this._recentlyUsedTabs = [gBrowser.selectedTab];
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this._init(true);
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}
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},
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uninit: function ctrlTab_uninit() {
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this._recentlyUsedTabs = null;
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this._init(false);
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},
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prefName: "browser.ctrlTab.previews",
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readPref: function ctrlTab_readPref() {
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var enable =
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gPrefService.getBoolPref(this.prefName) &&
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(!gPrefService.prefHasUserValue("browser.ctrlTab.disallowForScreenReaders") ||
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!gPrefService.getBoolPref("browser.ctrlTab.disallowForScreenReaders"));
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if (enable)
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this.init();
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else
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this.uninit();
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},
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observe: function (aSubject, aTopic, aPrefName) {
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this.readPref();
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},
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updatePreviews: function ctrlTab_updatePreviews() {
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for (let i = 0; i < this.previews.length; i++)
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this.updatePreview(this.previews[i], this.tabList[i]);
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var showAllLabel = gNavigatorBundle.getString("ctrlTab.showAll.label");
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this.showAllButton.label =
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PluralForm.get(this.tabCount, showAllLabel).replace("#1", this.tabCount);
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},
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updatePreview: function ctrlTab_updatePreview(aPreview, aTab) {
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if (aPreview == this.showAllButton)
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return;
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aPreview._tab = aTab;
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if (aPreview.firstChild)
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aPreview.removeChild(aPreview.firstChild);
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if (aTab) {
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let canvasWidth = this.canvasWidth;
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let canvasHeight = this.canvasHeight;
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aPreview.appendChild(tabPreviews.get(aTab));
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aPreview.setAttribute("label", aTab.label);
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aPreview.setAttribute("tooltiptext", aTab.label);
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aPreview.setAttribute("crop", aTab.crop);
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aPreview.setAttribute("canvaswidth", canvasWidth);
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aPreview.setAttribute("canvasstyle",
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"max-width:" + canvasWidth + "px;" +
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"min-width:" + canvasWidth + "px;" +
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"max-height:" + canvasHeight + "px;" +
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"min-height:" + canvasHeight + "px;");
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if (aTab.image)
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aPreview.setAttribute("image", aTab.image);
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else
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aPreview.removeAttribute("image");
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aPreview.hidden = false;
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} else {
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aPreview.hidden = true;
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aPreview.removeAttribute("label");
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aPreview.removeAttribute("tooltiptext");
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aPreview.removeAttribute("image");
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}
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},
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advanceFocus: function ctrlTab_advanceFocus(aForward) {
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if (this._selectedIndex == -1) {
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// No virtual selectedIndex, focus must be in the panel already.
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if (aForward)
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document.commandDispatcher.advanceFocus();
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else
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document.commandDispatcher.rewindFocus();
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} else {
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// Focus isn't in the panel yet, so we maintain a virtual selectedIndex.
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do {
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this._selectedIndex += aForward ? 1 : -1;
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if (this._selectedIndex < 0)
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this._selectedIndex = this.previews.length - 1;
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else if (this._selectedIndex >= this.previews.length)
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this._selectedIndex = 0;
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} while (this.selected.hidden);
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}
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if (this._timer) {
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clearTimeout(this._timer);
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this._timer = null;
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this._openPanel();
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}
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},
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_mouseOverFocus: function ctrlTab_mouseOverFocus(aPreview) {
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if (this._trackMouseOver)
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aPreview.focus();
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},
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pick: function ctrlTab_pick(aPreview) {
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if (!this.tabCount)
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return;
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var select = (aPreview || this.selected);
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if (select == this.showAllButton)
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this.showAllTabs();
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else
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this.close(select._tab);
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},
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showAllTabs: function ctrlTab_showAllTabs(aPreview) {
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this.close();
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document.getElementById("Browser:ShowAllTabs").doCommand();
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},
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remove: function ctrlTab_remove(aPreview) {
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if (aPreview._tab)
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gBrowser.removeTab(aPreview._tab);
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},
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attachTab: function ctrlTab_attachTab(aTab, aPos) {
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if (aPos == 0)
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this._recentlyUsedTabs.unshift(aTab);
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else if (aPos)
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this._recentlyUsedTabs.splice(aPos, 0, aTab);
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else
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this._recentlyUsedTabs.push(aTab);
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},
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detachTab: function ctrlTab_detachTab(aTab) {
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var i = this._recentlyUsedTabs.indexOf(aTab);
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if (i >= 0)
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this._recentlyUsedTabs.splice(i, 1);
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},
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open: function ctrlTab_open() {
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if (this.isOpen)
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return;
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allTabs.close();
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document.addEventListener("keyup", this, true);
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this.updatePreviews();
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this._selectedIndex = 1;
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// Add a slight delay before showing the UI, so that a quick
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// "ctrl-tab" keypress just flips back to the MRU tab.
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this._timer = setTimeout(function (self) {
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self._timer = null;
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self._openPanel();
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}, 200, this);
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},
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_openPanel: function ctrlTab_openPanel() {
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tabPreviewPanelHelper.opening(this);
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this.panel.width = Math.min(screen.availWidth * .99,
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this.canvasWidth * 1.25 * this.tabPreviewCount);
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var estimateHeight = this.canvasHeight * 1.25 + 75;
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this.panel.openPopupAtScreen(screen.availLeft + (screen.availWidth - this.panel.width) / 2,
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screen.availTop + (screen.availHeight - estimateHeight) / 2,
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false);
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},
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close: function ctrlTab_close(aTabToSelect) {
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if (!this.isOpen)
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return;
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if (this._timer) {
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clearTimeout(this._timer);
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this._timer = null;
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this.suspendGUI();
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if (aTabToSelect)
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gBrowser.selectedTab = aTabToSelect;
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return;
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}
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this.tabToSelect = aTabToSelect;
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this.panel.hidePopup();
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},
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setupGUI: function ctrlTab_setupGUI() {
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this.selected.focus();
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this._selectedIndex = -1;
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// Track mouse movement after a brief delay so that the item that happens
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// to be under the mouse pointer initially won't be selected unintentionally.
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this._trackMouseOver = false;
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setTimeout(function (self) {
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if (self.isOpen)
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self._trackMouseOver = true;
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}, 0, this);
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},
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suspendGUI: function ctrlTab_suspendGUI() {
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document.removeEventListener("keyup", this, true);
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Array.forEach(this.previews, function (preview) {
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this.updatePreview(preview, null);
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}, this);
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this._tabList = null;
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},
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onKeyPress: function ctrlTab_onKeyPress(event) {
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var isOpen = this.isOpen;
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if (isOpen) {
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event.preventDefault();
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event.stopPropagation();
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}
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switch (event.keyCode) {
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case event.DOM_VK_TAB:
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if (event.ctrlKey && !event.altKey && !event.metaKey) {
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if (isOpen) {
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this.advanceFocus(!event.shiftKey);
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} else if (!event.shiftKey) {
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event.preventDefault();
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event.stopPropagation();
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let tabs = gBrowser.visibleTabs;
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if (tabs.length > 2) {
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this.open();
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} else if (tabs.length == 2) {
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let index = gBrowser.selectedTab == tabs[0] ? 1 : 0;
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gBrowser.selectedTab = tabs[index];
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}
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}
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}
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break;
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default:
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if (isOpen && event.ctrlKey) {
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if (event.keyCode == event.DOM_VK_DELETE) {
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this.remove(this.selected);
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break;
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}
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switch (event.charCode) {
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case this.keys.close:
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this.remove(this.selected);
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break;
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case this.keys.find:
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case this.keys.selectAll:
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this.showAllTabs();
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break;
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}
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}
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}
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},
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removeClosingTabFromUI: function ctrlTab_removeClosingTabFromUI(aTab) {
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if (this.tabCount == 2) {
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this.close();
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return;
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}
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this._tabList = null;
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this.updatePreviews();
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if (this.selected.hidden)
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this.advanceFocus(false);
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if (this.selected == this.showAllButton)
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this.advanceFocus(false);
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// If the current tab is removed, another tab can steal our focus.
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if (aTab == gBrowser.selectedTab && this.panel.state == "open") {
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setTimeout(function (selected) {
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selected.focus();
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}, 0, this.selected);
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}
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},
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handleEvent: function ctrlTab_handleEvent(event) {
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switch (event.type) {
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case "TabAttrModified":
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// tab attribute modified (e.g. label, crop, busy, image, selected)
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for (let i = this.previews.length - 1; i >= 0; i--) {
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if (this.previews[i]._tab && this.previews[i]._tab == event.target) {
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this.updatePreview(this.previews[i], event.target);
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break;
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}
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}
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break;
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case "TabSelect":
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this.detachTab(event.target);
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this.attachTab(event.target, 0);
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break;
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case "TabOpen":
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this.attachTab(event.target, 1);
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break;
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case "TabClose":
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this.detachTab(event.target);
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if (this.isOpen)
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this.removeClosingTabFromUI(event.target);
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break;
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case "keypress":
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this.onKeyPress(event);
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break;
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case "keyup":
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if (event.keyCode == event.DOM_VK_CONTROL)
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this.pick();
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break;
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}
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},
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_init: function ctrlTab__init(enable) {
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var toggleEventListener = enable ? "addEventListener" : "removeEventListener";
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var tabContainer = gBrowser.tabContainer;
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tabContainer[toggleEventListener]("TabOpen", this, false);
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tabContainer[toggleEventListener]("TabAttrModified", this, false);
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tabContainer[toggleEventListener]("TabSelect", this, false);
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tabContainer[toggleEventListener]("TabClose", this, false);
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document[toggleEventListener]("keypress", this, false);
|
|
gBrowser.mTabBox.handleCtrlTab = !enable;
|
|
|
|
// If we're not running, hide the "Show All Tabs" menu item,
|
|
// as Shift+Ctrl+Tab will be handled by the tab bar.
|
|
document.getElementById("menu_showAllTabs").hidden = !enable;
|
|
|
|
// Also disable the <key> to ensure Shift+Ctrl+Tab never triggers
|
|
// Show All Tabs.
|
|
var key_showAllTabs = document.getElementById("key_showAllTabs");
|
|
if (enable)
|
|
key_showAllTabs.removeAttribute("disabled");
|
|
else
|
|
key_showAllTabs.setAttribute("disabled", "true");
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* All Tabs panel
|
|
*/
|
|
var allTabs = {
|
|
get panel () {
|
|
delete this.panel;
|
|
return this.panel = document.getElementById("allTabs-panel");
|
|
},
|
|
get filterField () {
|
|
delete this.filterField;
|
|
return this.filterField = document.getElementById("allTabs-filter");
|
|
},
|
|
get container () {
|
|
delete this.container;
|
|
return this.container = document.getElementById("allTabs-container");
|
|
},
|
|
get tabCloseButton () {
|
|
delete this.tabCloseButton;
|
|
return this.tabCloseButton = document.getElementById("allTabs-tab-close-button");
|
|
},
|
|
get toolbarButton() document.getElementById("alltabs-button"),
|
|
get previews () this.container.getElementsByClassName("allTabs-preview"),
|
|
get isOpen () this.panel.state == "open" || this.panel.state == "showing",
|
|
|
|
init: function allTabs_init() {
|
|
if (this._initiated)
|
|
return;
|
|
this._initiated = true;
|
|
|
|
tabPreviews.init();
|
|
|
|
Array.forEach(gBrowser.tabs, function (tab) {
|
|
this._addPreview(tab);
|
|
}, this);
|
|
|
|
gBrowser.tabContainer.addEventListener("TabOpen", this, false);
|
|
gBrowser.tabContainer.addEventListener("TabAttrModified", this, false);
|
|
gBrowser.tabContainer.addEventListener("TabMove", this, false);
|
|
gBrowser.tabContainer.addEventListener("TabClose", this, false);
|
|
},
|
|
|
|
uninit: function allTabs_uninit() {
|
|
if (!this._initiated)
|
|
return;
|
|
|
|
gBrowser.tabContainer.removeEventListener("TabOpen", this, false);
|
|
gBrowser.tabContainer.removeEventListener("TabAttrModified", this, false);
|
|
gBrowser.tabContainer.removeEventListener("TabMove", this, false);
|
|
gBrowser.tabContainer.removeEventListener("TabClose", this, false);
|
|
|
|
while (this.container.hasChildNodes())
|
|
this.container.removeChild(this.container.firstChild);
|
|
|
|
this._initiated = false;
|
|
},
|
|
|
|
prefName: "browser.allTabs.previews",
|
|
readPref: function allTabs_readPref() {
|
|
var allTabsButton = this.toolbarButton;
|
|
if (!allTabsButton)
|
|
return;
|
|
|
|
if (gPrefService.getBoolPref(this.prefName)) {
|
|
allTabsButton.removeAttribute("type");
|
|
allTabsButton.setAttribute("command", "Browser:ShowAllTabs");
|
|
} else {
|
|
allTabsButton.setAttribute("type", "menu");
|
|
allTabsButton.removeAttribute("command");
|
|
allTabsButton.removeAttribute("oncommand");
|
|
}
|
|
},
|
|
observe: function (aSubject, aTopic, aPrefName) {
|
|
this.readPref();
|
|
},
|
|
|
|
pick: function allTabs_pick(aPreview) {
|
|
if (!aPreview)
|
|
aPreview = this._firstVisiblePreview;
|
|
if (aPreview)
|
|
this.tabToSelect = aPreview._tab;
|
|
|
|
this.close();
|
|
},
|
|
|
|
closeTab: function allTabs_closeTab(event) {
|
|
this.filterField.focus();
|
|
gBrowser.removeTab(event.currentTarget._targetPreview._tab);
|
|
},
|
|
|
|
filter: function allTabs_filter() {
|
|
if (this._currentFilter == this.filterField.value)
|
|
return;
|
|
|
|
this._currentFilter = this.filterField.value;
|
|
|
|
var filter = this._currentFilter.split(/\s+/g);
|
|
this._visible = 0;
|
|
Array.forEach(this.previews, function (preview) {
|
|
var tab = preview._tab;
|
|
var matches = 0;
|
|
if (filter.length && !tab.hidden) {
|
|
let tabstring = tab.linkedBrowser.currentURI.spec;
|
|
try {
|
|
tabstring = decodeURI(tabstring);
|
|
} catch (e) {}
|
|
tabstring = tab.label + " " + tab.label.toLocaleLowerCase() + " " + tabstring;
|
|
for (let i = 0; i < filter.length; i++)
|
|
matches += tabstring.contains(filter[i]);
|
|
}
|
|
if (matches < filter.length || tab.hidden) {
|
|
preview.hidden = true;
|
|
}
|
|
else {
|
|
this._visible++;
|
|
this._updatePreview(preview);
|
|
preview.hidden = false;
|
|
}
|
|
}, this);
|
|
|
|
this._reflow();
|
|
},
|
|
|
|
open: function allTabs_open() {
|
|
var allTabsButton = this.toolbarButton;
|
|
if (allTabsButton &&
|
|
allTabsButton.getAttribute("type") == "menu") {
|
|
// Without setTimeout, the menupopup won't stay open when invoking
|
|
// "View > Show All Tabs" and the menu bar auto-hides.
|
|
setTimeout(function () {
|
|
allTabsButton.open = true;
|
|
}, 0);
|
|
return;
|
|
}
|
|
|
|
this.init();
|
|
|
|
if (this.isOpen)
|
|
return;
|
|
|
|
this._maxPanelHeight = Math.max(gBrowser.clientHeight, screen.availHeight / 2);
|
|
this._maxPanelWidth = Math.max(gBrowser.clientWidth, screen.availWidth / 2);
|
|
|
|
this.filter();
|
|
|
|
tabPreviewPanelHelper.opening(this);
|
|
|
|
this.panel.popupBoxObject.setConsumeRollupEvent(Ci.nsIPopupBoxObject.ROLLUP_NO_CONSUME);
|
|
this.panel.openPopup(gBrowser, "overlap", 0, 0, false, true);
|
|
},
|
|
|
|
close: function allTabs_close() {
|
|
this.panel.hidePopup();
|
|
},
|
|
|
|
setupGUI: function allTabs_setupGUI() {
|
|
this.filterField.focus();
|
|
this.filterField.placeholder = this.filterField.tooltipText;
|
|
|
|
this.panel.addEventListener("keypress", this, false);
|
|
this.panel.addEventListener("keypress", this, true);
|
|
this._browserCommandSet.addEventListener("command", this, false);
|
|
|
|
// When the panel is open, a second click on the all tabs button should
|
|
// close the panel but not re-open it.
|
|
document.getElementById("Browser:ShowAllTabs").setAttribute("disabled", "true");
|
|
},
|
|
|
|
suspendGUI: function allTabs_suspendGUI() {
|
|
this.filterField.placeholder = "";
|
|
this.filterField.value = "";
|
|
this._currentFilter = null;
|
|
|
|
this._updateTabCloseButton();
|
|
|
|
this.panel.removeEventListener("keypress", this, false);
|
|
this.panel.removeEventListener("keypress", this, true);
|
|
this._browserCommandSet.removeEventListener("command", this, false);
|
|
|
|
setTimeout(function () {
|
|
document.getElementById("Browser:ShowAllTabs").removeAttribute("disabled");
|
|
}, 300);
|
|
},
|
|
|
|
handleEvent: function allTabs_handleEvent(event) {
|
|
if (event.type.startsWith("Tab")) {
|
|
var tab = event.target;
|
|
if (event.type != "TabOpen")
|
|
var preview = this._getPreview(tab);
|
|
}
|
|
switch (event.type) {
|
|
case "TabAttrModified":
|
|
// tab attribute modified (e.g. label, crop, busy, image)
|
|
if (!preview.hidden)
|
|
this._updatePreview(preview);
|
|
break;
|
|
case "TabOpen":
|
|
if (this.isOpen)
|
|
this.close();
|
|
this._addPreview(tab);
|
|
break;
|
|
case "TabMove":
|
|
let siblingPreview = tab.nextSibling &&
|
|
this._getPreview(tab.nextSibling);
|
|
if (siblingPreview)
|
|
siblingPreview.parentNode.insertBefore(preview, siblingPreview);
|
|
else
|
|
this.container.lastChild.appendChild(preview);
|
|
if (this.isOpen && !preview.hidden) {
|
|
this._reflow();
|
|
preview.focus();
|
|
}
|
|
break;
|
|
case "TabClose":
|
|
this._removePreview(preview);
|
|
break;
|
|
case "keypress":
|
|
this._onKeyPress(event);
|
|
break;
|
|
case "command":
|
|
if (event.target.id != "Browser:ShowAllTabs") {
|
|
// Close the panel when there's a browser command executing in the background.
|
|
this.close();
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
|
|
_visible: 0,
|
|
_currentFilter: null,
|
|
get _stack () {
|
|
delete this._stack;
|
|
return this._stack = document.getElementById("allTabs-stack");
|
|
},
|
|
get _browserCommandSet () {
|
|
delete this._browserCommandSet;
|
|
return this._browserCommandSet = document.getElementById("mainCommandSet");
|
|
},
|
|
get _previewLabelHeight () {
|
|
delete this._previewLabelHeight;
|
|
return this._previewLabelHeight = parseInt(getComputedStyle(this.previews[0], "").lineHeight);
|
|
},
|
|
|
|
get _visiblePreviews ()
|
|
Array.filter(this.previews, function (preview) !preview.hidden),
|
|
|
|
get _firstVisiblePreview () {
|
|
if (this._visible == 0)
|
|
return null;
|
|
var previews = this.previews;
|
|
for (let i = 0; i < previews.length; i++) {
|
|
if (!previews[i].hidden)
|
|
return previews[i];
|
|
}
|
|
return null;
|
|
},
|
|
|
|
_reflow: function allTabs_reflow() {
|
|
this._updateTabCloseButton();
|
|
|
|
const CONTAINER_MAX_WIDTH = this._maxPanelWidth * .95;
|
|
const CONTAINER_MAX_HEIGHT = this._maxPanelHeight - 35;
|
|
// the size of the whole preview relative to the thumbnail
|
|
const REL_PREVIEW_THUMBNAIL = 1.2;
|
|
const REL_PREVIEW_HEIGHT_WIDTH = tabPreviews.height / tabPreviews.width;
|
|
const PREVIEW_MAX_WIDTH = tabPreviews.width * REL_PREVIEW_THUMBNAIL;
|
|
|
|
var rows, previewHeight, previewWidth, outerHeight;
|
|
this._columns = Math.floor(CONTAINER_MAX_WIDTH / PREVIEW_MAX_WIDTH);
|
|
do {
|
|
rows = Math.ceil(this._visible / this._columns);
|
|
previewWidth = Math.min(PREVIEW_MAX_WIDTH,
|
|
Math.round(CONTAINER_MAX_WIDTH / this._columns));
|
|
previewHeight = Math.round(previewWidth * REL_PREVIEW_HEIGHT_WIDTH);
|
|
outerHeight = previewHeight + this._previewLabelHeight;
|
|
} while (rows * outerHeight > CONTAINER_MAX_HEIGHT && ++this._columns);
|
|
|
|
var outerWidth = previewWidth;
|
|
{
|
|
let innerWidth = Math.ceil(previewWidth / REL_PREVIEW_THUMBNAIL);
|
|
let innerHeight = Math.ceil(previewHeight / REL_PREVIEW_THUMBNAIL);
|
|
var canvasStyle = "max-width:" + innerWidth + "px;" +
|
|
"min-width:" + innerWidth + "px;" +
|
|
"max-height:" + innerHeight + "px;" +
|
|
"min-height:" + innerHeight + "px;";
|
|
}
|
|
|
|
var previews = Array.slice(this.previews);
|
|
|
|
while (this.container.hasChildNodes())
|
|
this.container.removeChild(this.container.firstChild);
|
|
for (let i = rows || 1; i > 0; i--)
|
|
this.container.appendChild(document.createElement("hbox"));
|
|
|
|
var row = this.container.firstChild;
|
|
var colCount = 0;
|
|
previews.forEach(function (preview) {
|
|
if (!preview.hidden &&
|
|
++colCount > this._columns) {
|
|
row = row.nextSibling;
|
|
colCount = 1;
|
|
}
|
|
preview.setAttribute("minwidth", outerWidth);
|
|
preview.setAttribute("height", outerHeight);
|
|
preview.setAttribute("canvasstyle", canvasStyle);
|
|
preview.removeAttribute("closebuttonhover");
|
|
row.appendChild(preview);
|
|
}, this);
|
|
|
|
this._stack.width = this._maxPanelWidth;
|
|
this.container.width = Math.ceil(outerWidth * Math.min(this._columns, this._visible));
|
|
this.container.left = Math.round((this._maxPanelWidth - this.container.width) / 2);
|
|
this.container.maxWidth = this._maxPanelWidth - this.container.left;
|
|
this.container.maxHeight = rows * outerHeight;
|
|
},
|
|
|
|
_addPreview: function allTabs_addPreview(aTab) {
|
|
var preview = document.createElement("button");
|
|
preview.className = "allTabs-preview";
|
|
preview._tab = aTab;
|
|
this.container.lastChild.appendChild(preview);
|
|
},
|
|
|
|
_removePreview: function allTabs_removePreview(aPreview) {
|
|
var updateUI = (this.isOpen && !aPreview.hidden);
|
|
aPreview._tab = null;
|
|
aPreview.parentNode.removeChild(aPreview);
|
|
if (updateUI) {
|
|
this._visible--;
|
|
this._reflow();
|
|
this.filterField.focus();
|
|
}
|
|
},
|
|
|
|
_getPreview: function allTabs_getPreview(aTab) {
|
|
var previews = this.previews;
|
|
for (let i = 0; i < previews.length; i++)
|
|
if (previews[i]._tab == aTab)
|
|
return previews[i];
|
|
return null;
|
|
},
|
|
|
|
_updateTabCloseButton: function allTabs_updateTabCloseButton(event) {
|
|
if (event && event.target == this.tabCloseButton)
|
|
return;
|
|
|
|
if (this.tabCloseButton._targetPreview) {
|
|
if (event && event.target == this.tabCloseButton._targetPreview)
|
|
return;
|
|
|
|
this.tabCloseButton._targetPreview.removeAttribute("closebuttonhover");
|
|
}
|
|
|
|
if (event &&
|
|
event.target.parentNode.parentNode == this.container &&
|
|
(event.target._tab.previousSibling || event.target._tab.nextSibling)) {
|
|
let canvas = event.target.firstChild.getBoundingClientRect();
|
|
let container = this.container.getBoundingClientRect();
|
|
let tabCloseButton = this.tabCloseButton.getBoundingClientRect();
|
|
let alignLeft = getComputedStyle(this.panel, "").direction == "rtl";
|
|
#ifdef XP_MACOSX
|
|
alignLeft = !alignLeft;
|
|
#endif
|
|
this.tabCloseButton.left = canvas.left -
|
|
container.left +
|
|
parseInt(this.container.left) +
|
|
(alignLeft ? 0 :
|
|
canvas.width - tabCloseButton.width);
|
|
this.tabCloseButton.top = canvas.top - container.top;
|
|
this.tabCloseButton._targetPreview = event.target;
|
|
this.tabCloseButton.style.visibility = "visible";
|
|
event.target.setAttribute("closebuttonhover", "true");
|
|
} else {
|
|
this.tabCloseButton.style.visibility = "hidden";
|
|
this.tabCloseButton.left = this.tabCloseButton.top = 0;
|
|
this.tabCloseButton._targetPreview = null;
|
|
}
|
|
},
|
|
|
|
_updatePreview: function allTabs_updatePreview(aPreview) {
|
|
aPreview.setAttribute("label", aPreview._tab.label);
|
|
aPreview.setAttribute("tooltiptext", aPreview._tab.label);
|
|
aPreview.setAttribute("crop", aPreview._tab.crop);
|
|
if (aPreview._tab.image)
|
|
aPreview.setAttribute("image", aPreview._tab.image);
|
|
else
|
|
aPreview.removeAttribute("image");
|
|
|
|
var thumbnail = tabPreviews.get(aPreview._tab);
|
|
if (aPreview.firstChild) {
|
|
if (aPreview.firstChild == thumbnail)
|
|
return;
|
|
aPreview.removeChild(aPreview.firstChild);
|
|
}
|
|
aPreview.appendChild(thumbnail);
|
|
},
|
|
|
|
_onKeyPress: function allTabs_onKeyPress(event) {
|
|
if (event.eventPhase == event.CAPTURING_PHASE) {
|
|
this._onCapturingKeyPress(event);
|
|
return;
|
|
}
|
|
|
|
if (event.keyCode == event.DOM_VK_ESCAPE) {
|
|
this.close();
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
return;
|
|
}
|
|
|
|
if (event.target == this.filterField) {
|
|
switch (event.keyCode) {
|
|
case event.DOM_VK_UP:
|
|
if (this._visible) {
|
|
let previews = this._visiblePreviews;
|
|
let columns = Math.min(previews.length, this._columns);
|
|
previews[Math.floor(previews.length / columns) * columns - 1].focus();
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
}
|
|
break;
|
|
case event.DOM_VK_DOWN:
|
|
if (this._visible) {
|
|
this._firstVisiblePreview.focus();
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
},
|
|
|
|
_onCapturingKeyPress: function allTabs_onCapturingKeyPress(event) {
|
|
switch (event.keyCode) {
|
|
case event.DOM_VK_UP:
|
|
case event.DOM_VK_DOWN:
|
|
if (event.target != this.filterField)
|
|
this._advanceFocusVertically(event);
|
|
break;
|
|
case event.DOM_VK_RETURN:
|
|
if (event.target == this.filterField) {
|
|
this.filter();
|
|
this.pick();
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
|
|
_advanceFocusVertically: function allTabs_advanceFocusVertically(event) {
|
|
var preview = document.activeElement;
|
|
if (!preview || preview.parentNode.parentNode != this.container)
|
|
return;
|
|
|
|
event.stopPropagation();
|
|
|
|
var up = (event.keyCode == event.DOM_VK_UP);
|
|
var previews = this._visiblePreviews;
|
|
|
|
if (up && preview == previews[0]) {
|
|
this.filterField.focus();
|
|
return;
|
|
}
|
|
|
|
var i = previews.indexOf(preview);
|
|
var columns = Math.min(previews.length, this._columns);
|
|
var column = i % columns;
|
|
var row = Math.floor(i / columns);
|
|
|
|
function newIndex() row * columns + column;
|
|
function outOfBounds() newIndex() >= previews.length;
|
|
|
|
if (up) {
|
|
row--;
|
|
if (row < 0) {
|
|
let rows = Math.ceil(previews.length / columns);
|
|
row = rows - 1;
|
|
column--;
|
|
if (outOfBounds())
|
|
row--;
|
|
}
|
|
} else {
|
|
row++;
|
|
if (outOfBounds()) {
|
|
if (column == columns - 1) {
|
|
this.filterField.focus();
|
|
return;
|
|
}
|
|
row = 0;
|
|
column++;
|
|
}
|
|
}
|
|
previews[newIndex()].focus();
|
|
}
|
|
};
|