mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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589 lines
20 KiB
JavaScript
589 lines
20 KiB
JavaScript
/*
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#ifdef 0
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Tab Previews.
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*
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* The Initial Developer of the Original Code is Mozilla.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Dão Gottwald <dao@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK *****
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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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init: function () {
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this.width = Math.ceil(screen.availWidth / 5);
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this.height = Math.round(this.width * this.aspectRatio);
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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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uninit: function () {
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gBrowser.tabContainer.removeEventListener("TabSelect", this, false);
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gBrowser.tabContainer.removeEventListener("SSTabRestored", this, false);
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this._selectedTab = null;
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},
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get: function (aTab) {
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if (aTab.__thumbnail_lastURI &&
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aTab.__thumbnail_lastURI != aTab.linkedBrowser.currentURI.spec) {
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aTab.__thumbnail = null;
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aTab.__thumbnail_lastURI = null;
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}
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return aTab.__thumbnail || this.capture(aTab, !aTab.hasAttribute("busy"));
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},
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capture: function (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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var data = thumbnail.toDataURL("image/jpeg", "quality=60");
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if (aStore) {
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aTab.__thumbnail = data;
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aTab.__thumbnail_lastURI = aTab.linkedBrowser.currentURI.spec;
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}
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return data;
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},
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handleEvent: function (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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/**
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* Ctrl-Tab panel
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*/
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var ctrlTab = {
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visibleCount: 3,
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_uniqid: 0,
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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 label () {
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delete this.label;
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return this.label = document.getElementById("ctrlTab-label");
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},
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get svgRoot () {
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delete this.svgRoot;
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let (groundFade = document.getElementById("ctrlTab-groundFade")) {
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groundFade.setAttribute("height", Math.ceil(tabPreviews.height * .25) + 1);
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groundFade.setAttribute("y", tabPreviews.height + 1);
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}
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this.svgRoot = document.getElementById("ctrlTab-svgRoot");
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this.svgRoot.setAttribute("height", tabPreviews.height * 1.25 + 2);
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return this.svgRoot;
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},
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get container () {
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delete this.container;
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return this.container = document.getElementById("ctrlTab-container");
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},
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get rtl () {
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delete this.rtl;
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return this.rtl = getComputedStyle(this.panel, "").direction == "rtl";
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},
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get iconSize () {
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delete this.iconSize;
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return this.iconSize = Math.max(16, Math.round(tabPreviews.height / 5));
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},
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get closeCharCode () {
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delete this.closeCharCode;
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return this.closeCharCode = document.getElementById("key_close")
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.getAttribute("key")
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.toLowerCase().charCodeAt(0);
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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 smoothScroll () {
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delete this.smoothScroll;
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return this.smoothScroll = gPrefService.getBoolPref("browser.ctrlTab.smoothScroll");
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},
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get tabCount () {
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return gBrowser.mTabs.length;
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},
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get offscreenStart () {
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return Array.indexOf(this.container.childNodes, this.selected) - 1;
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},
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get offscreenEnd () {
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return this.container.childNodes.length - this.visibleCount - this.offscreenStart;
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},
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get offsetX () {
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return - tabPreviews.width * (this.rtl ? this.offscreenEnd : this.offscreenStart);
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},
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get isOpen () {
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return this.panel.state == "open" || this.panel.state == "showing";
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},
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init: function () {
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if (this._recentlyUsedTabs)
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return;
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this._recentlyUsedTabs = [gBrowser.selectedTab];
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var tabContainer = gBrowser.tabContainer;
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tabContainer.addEventListener("TabOpen", this, false);
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tabContainer.addEventListener("TabSelect", this, false);
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tabContainer.addEventListener("TabClose", this, false);
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gBrowser.mTabBox.handleCtrlTab = false;
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document.addEventListener("keypress", this, false);
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},
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uninit: function () {
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this._recentlyUsedTabs = null;
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var tabContainer = gBrowser.tabContainer;
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tabContainer.removeEventListener("TabOpen", this, false);
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tabContainer.removeEventListener("TabSelect", this, false);
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tabContainer.removeEventListener("TabClose", this, false);
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this.panel.removeEventListener("popuphiding", this, false);
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document.removeEventListener("keypress", this, false);
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},
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addBox: function (aAtStart) {
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const SVGNS = "http://www.w3.org/2000/svg";
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var thumbnail = document.createElementNS(SVGNS, "image");
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thumbnail.setAttribute("class", "ctrlTab-thumbnail");
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thumbnail.setAttribute("height", tabPreviews.height);
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thumbnail.setAttribute("width", tabPreviews.width);
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var thumbnail_border = document.createElementNS(SVGNS, "rect");
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thumbnail_border.setAttribute("class", "ctrlTab-thumbnailborder");
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thumbnail_border.setAttribute("height", tabPreviews.height);
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thumbnail_border.setAttribute("width", tabPreviews.width);
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var icon = document.createElementNS(SVGNS, "image");
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icon.setAttribute("class", "ctrlTab-icon");
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icon.setAttribute("height", this.iconSize);
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icon.setAttribute("width", this.iconSize);
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icon.setAttribute("x", - this.iconSize * .2);
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icon.setAttribute("y", tabPreviews.height - this.iconSize * 1.2);
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var thumbnail_and_icon = document.createElementNS(SVGNS, "g");
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thumbnail_and_icon.appendChild(thumbnail);
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thumbnail_and_icon.appendChild(thumbnail_border);
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thumbnail_and_icon.appendChild(icon);
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var reflection = document.createElementNS(SVGNS, "use");
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reflection.setAttribute("class", "ctrlTab-reflection");
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var ref_scale = .5;
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reflection.setAttribute("transform", "scale(1,-" + ref_scale + ")");
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reflection.setAttribute("y", - ((1 / ref_scale + 1) * tabPreviews.height +
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(1 / ref_scale) * 2));
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var box = document.createElementNS(SVGNS, "g");
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box.setAttribute("class", "ctrlTab-box");
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box.setAttribute("onclick", "ctrlTab.pick(this);");
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box.appendChild(thumbnail_and_icon);
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box.appendChild(reflection);
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if (aAtStart)
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this.container.insertBefore(box, this.container.firstChild);
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else
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this.container.appendChild(box);
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return box;
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},
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removeBox: function (aBox) {
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this.container.removeChild(aBox);
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if (!Array.some(this.container.childNodes, function (box) box._tab == aBox._tab))
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aBox._tab.removeEventListener("DOMAttrModified", this, false);
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aBox._tab = null;
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},
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addPreview: function (aBox, aTab) {
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const XLinkNS = "http://www.w3.org/1999/xlink";
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aBox._tab = aTab;
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let (thumbnail = aBox.firstChild.firstChild)
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thumbnail.setAttributeNS(XLinkNS, "href", tabPreviews.get(aTab));
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this.updateIcon(aBox);
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aTab.addEventListener("DOMAttrModified", this, false);
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if (!aBox.firstChild.hasAttribute("id")) {
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// set up reflection
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this._uniqid++;
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aBox.firstChild.setAttribute("id", "ctrlTab-preview-" + this._uniqid);
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aBox.lastChild.setAttributeNS(XLinkNS, "href", "#ctrlTab-preview-" + this._uniqid);
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}
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},
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updateIcon: function (aBox) {
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const XLinkNS = "http://www.w3.org/1999/xlink";
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var url = aBox._tab.hasAttribute("busy") ?
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"chrome://global/skin/icons/loading_16.png" :
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aBox._tab.getAttribute("image");
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var icon = aBox.firstChild.lastChild;
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if (url)
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icon.setAttributeNS(XLinkNS, "href", url);
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else
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icon.removeAttributeNS(XLinkNS, "href");
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},
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tabAttrModified: function (aTab, aAttrName) {
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switch (aAttrName) {
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case "busy":
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case "image":
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Array.forEach(this.container.childNodes, function (box) {
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if (box._tab == aTab) {
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if (aAttrName == "busy")
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this.addPreview(box, aTab);
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else
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this.updateIcon(box);
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}
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}, this);
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break;
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case "label":
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case "crop":
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if (!this._scrollTimer) {
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let boxes = this.container.childNodes;
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for (let i = boxes.length - 1; i >= 0; i--) {
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if (boxes[i]._tab == aTab && boxes[i] == this.selected) {
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this.label[aAttrName == "label" ? "value" : aAttrName] =
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aTab.getAttribute(aAttrName);
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break;
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}
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}
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}
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break;
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}
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},
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scroll: function () {
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if (!this.smoothScroll) {
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this.advanceSelected();
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this.arrangeBoxes();
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return;
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}
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this.stopScroll();
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let (next = this.invertDirection ? this.selected.previousSibling : this.selected.nextSibling) {
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this.setStatusbarValue(next);
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this.label.value = next._tab.label;
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this.label.crop = next._tab.crop;
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}
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const FRAME_LENGTH = 40;
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var x = this.offsetX;
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var scrollAmounts = let (tenth = tabPreviews.width / (this.invertDirection == this.rtl ? -10 : 10))
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[3 * tenth, 4 * tenth, 2 * tenth, tenth];
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function processFrame(self, lateness) {
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lateness += FRAME_LENGTH / 2;
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do {
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x += scrollAmounts.shift();
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lateness -= FRAME_LENGTH;
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} while (lateness > 0 && scrollAmounts.length);
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self.container.setAttribute("transform", "translate("+ x +",0)");
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self.svgRoot.forceRedraw();
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if (!scrollAmounts.length)
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self.stopScroll();
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}
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this._scrollTimer = setInterval(processFrame, FRAME_LENGTH, this);
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processFrame(this, 0);
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},
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stopScroll: function () {
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if (this._scrollTimer) {
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clearInterval(this._scrollTimer);
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this._scrollTimer = 0;
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this.advanceSelected();
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this.arrangeBoxes();
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}
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},
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advanceSelected: function () {
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// regardless of visibleCount, the new highlighted tab will be
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// the first or third-visible tab, depending on whether Shift is pressed
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var index = ((this.invertDirection ? 0 : 2) + this.offscreenStart + this.tabCount)
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% this.tabCount;
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if (index < 2)
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index += this.tabCount;
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if (index > this.container.childNodes.length - this.visibleCount + 1)
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index -= this.tabCount;
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this.selected = this.container.childNodes[index];
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},
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arrangeBoxes: function () {
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this.addOffscreenBox(this.invertDirection);
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this.addOffscreenBox(!this.invertDirection);
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// having lots of off-screen boxes reduces the scrolling speed, remove some
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for (let i = this.offscreenStart; i > 1; i--)
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this.removeBox(this.container.firstChild);
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for (let i = this.offscreenEnd; i > 1; i--)
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this.removeBox(this.container.lastChild);
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this.container.setAttribute("transform", "translate("+ this.offsetX +", 0)");
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for (let i = 0, l = this.container.childNodes.length; i < l; i++)
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this.arrange(i);
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},
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addOffscreenBox: function (aAtStart) {
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if (this.container.childNodes.length < this.tabCount + this.visibleCount + 1 &&
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!(aAtStart ? this.offscreenStart : this.offscreenEnd)) {
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let tabs = this.getTabList();
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let i = aAtStart ?
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tabs.indexOf(this.container.firstChild._tab) - 1:
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tabs.indexOf(this.container.lastChild._tab) + 1;
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i = (i + tabs.length) % tabs.length;
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this.addPreview(this.addBox(aAtStart), tabs[i]);
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}
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},
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arrange: function (aIndex) {
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var box = this.container.childNodes[aIndex];
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var selected = box == this.selected;
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if (selected) {
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box.setAttribute("selected", "true");
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this.setStatusbarValue(box);
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this.label.value = box._tab.label;
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this.label.crop = box._tab.crop;
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} else {
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box.removeAttribute("selected");
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}
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var scale = selected ? 1 : .75;
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var pos = this.rtl ? this.container.childNodes.length - 1 - aIndex : aIndex;
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var trans_x = tabPreviews.width * (pos + (1 - scale) / 2) / scale;
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var trans_y = (tabPreviews.height + 1) * (1 / scale - 1);
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box.setAttribute("transform", "scale(" + scale + "," + scale + ") " +
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"translate("+ trans_x + "," + trans_y + ")");
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},
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pick: function (aBox) {
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this.stopScroll();
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var selectedTab = (aBox || this.selected)._tab;
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this.panel.hidePopup();
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gBrowser.selectedTab = selectedTab;
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},
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setStatusbarValue: function (aBox) {
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var value = "";
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if (aBox) {
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value = aBox._tab.linkedBrowser.currentURI.spec;
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if (value == "about:blank") {
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// XXXhack: Passing a space here (and not "")
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// to make sure the browser implementation would
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// still consider it a hovered link.
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value = " ";
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} else {
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try {
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value = decodeURI(value);
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} catch (e) {}
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}
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}
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XULBrowserWindow.setOverLink(value, null);
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},
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getTabList: function () {
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var list = Array.slice(gBrowser.mTabs);
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for (let i = 0; i < gBrowser.tabContainer.selectedIndex; i++)
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list.push(list.shift());
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if (!this._useTabBarOrder && this.recentlyUsedLimit > 0) {
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let recentlyUsedTabs = this._recentlyUsedTabs.slice(0, this.recentlyUsedLimit);
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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 list;
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},
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attachTab: function (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 (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 () {
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this._deferOnTabSelect = [];
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if (this.invertDirection)
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this._useTabBarOrder = true;
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document.addEventListener("keyup", this, false);
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document.addEventListener("keydown", this, false);
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this.panel.addEventListener("popuphiding", this, false);
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this.panel.hidden = false;
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this.panel.width = tabPreviews.width * this.visibleCount;
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this.panel.openPopupAtScreen(screen.availLeft + (screen.availWidth - this.panel.width) / 2,
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screen.availTop + (screen.availHeight - this.svgRoot.getAttribute("height")) / 2,
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false);
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// display $visibleCount tabs, starting with the first or
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// the second to the last tab, depending on whether Shift is pressed
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{
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let tabs = this.getTabList();
|
|
let index = this.invertDirection ? tabs.length - 2 : 0;
|
|
for (let i = this.visibleCount; i > 0; i--)
|
|
this.addPreview(this.addBox(), tabs[index++ % tabs.length]);
|
|
}
|
|
|
|
// regardless of visibleCount, highlight the second-visible tab
|
|
this.selected = this.container.childNodes[1];
|
|
this.arrangeBoxes();
|
|
},
|
|
onKeyPress: function (event) {
|
|
var isOpen = this.isOpen;
|
|
var propagate = !isOpen;
|
|
switch (event.keyCode) {
|
|
case event.DOM_VK_TAB:
|
|
if (event.ctrlKey && !event.altKey && !event.metaKey) {
|
|
propagate = false;
|
|
this.invertDirection = event.shiftKey;
|
|
if (isOpen)
|
|
this.scroll();
|
|
else if (this.tabCount == 2)
|
|
gBrowser.selectedTab = this.getTabList()[1];
|
|
else if (this.tabCount > 2)
|
|
this.open();
|
|
}
|
|
break;
|
|
case event.DOM_VK_ESCAPE:
|
|
if (isOpen)
|
|
this.panel.hidePopup();
|
|
break;
|
|
default:
|
|
if (isOpen && event.charCode == this.closeCharCode) {
|
|
this.stopScroll();
|
|
gBrowser.removeTab(this.selected._tab);
|
|
}
|
|
}
|
|
if (!propagate) {
|
|
event.stopPropagation();
|
|
event.preventDefault();
|
|
}
|
|
},
|
|
onPopupHiding: function () {
|
|
this.stopScroll();
|
|
document.removeEventListener("keyup", this, false);
|
|
document.removeEventListener("keydown", this, false);
|
|
while (this.container.childNodes.length)
|
|
this.removeBox(this.container.lastChild);
|
|
this.selected = null;
|
|
this.invertDirection = false;
|
|
this._useTabBarOrder = false;
|
|
this._uniqid = 0;
|
|
this.label.value = "";
|
|
this.setStatusbarValue();
|
|
this.container.removeAttribute("transform");
|
|
this.svgRoot.forceRedraw();
|
|
|
|
this._deferOnTabSelect.forEach(this.onTabSelect, this);
|
|
this._deferOnTabSelect = null;
|
|
},
|
|
onTabSelect: function (aTab) {
|
|
if (aTab.parentNode) {
|
|
this.detachTab(aTab);
|
|
this.attachTab(aTab, 0);
|
|
}
|
|
},
|
|
handleEvent: function (event) {
|
|
switch (event.type) {
|
|
case "DOMAttrModified":
|
|
this.tabAttrModified(event.target, event.attrName);
|
|
break;
|
|
case "TabSelect":
|
|
if (this.isOpen)
|
|
// don't change the tab order while the panel is open
|
|
this._deferOnTabSelect.push(event.target);
|
|
else
|
|
this.onTabSelect(event.target);
|
|
break;
|
|
case "TabOpen":
|
|
this.attachTab(event.target, 1);
|
|
break;
|
|
case "TabClose":
|
|
if (this.isOpen) {
|
|
if (this.tabCount == 2) {
|
|
// we have two tabs, one is being closed, so the panel isn't needed anymore
|
|
this.panel.hidePopup();
|
|
} else {
|
|
if (event.target == this.selected._tab)
|
|
this.advanceSelected();
|
|
this.detachTab(event.target);
|
|
Array.slice(this.container.childNodes).forEach(function (box) {
|
|
if (box._tab == event.target) {
|
|
this.removeBox(box);
|
|
this.arrangeBoxes();
|
|
}
|
|
}, this);
|
|
}
|
|
}
|
|
this.detachTab(event.target);
|
|
break;
|
|
case "keypress":
|
|
this.onKeyPress(event);
|
|
break;
|
|
case "keydown":
|
|
case "keyup":
|
|
// the panel is open; don't propagate any key events
|
|
event.stopPropagation();
|
|
event.preventDefault();
|
|
if (event.type == "keyup" && event.keyCode == event.DOM_VK_CONTROL)
|
|
this.pick();
|
|
break;
|
|
case "popuphiding":
|
|
this.onPopupHiding();
|
|
break;
|
|
}
|
|
}
|
|
};
|