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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the nsSessionStore component.
- *
- * The Initial Developer of the Original Code is
- * Simon B├╝nzli <zeniko@gmail.com>
- * Portions created by the Initial Developer are Copyright (C) 2008
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- const Cc = Components.classes;
- const Ci = Components.interfaces;
-
- var gStateObject;
- var gTreeData;
-
- // Page initialization
-
- window.onload = function() {
- // the crashed session state is kept inside a textbox so that SessionStore picks it up
- // (for when the tab is closed or the session crashes right again)
- var sessionData = document.getElementById("sessionData");
- if (!sessionData.value) {
- var ss = Cc["@mozilla.org/browser/sessionstartup;1"].getService(Ci.nsISessionStartup);
- sessionData.value = ss.state;
- if (!sessionData.value) {
- document.getElementById("errorTryAgain").disabled = true;
- return;
- }
- }
- // make sure the data is tracked to be restored in case of a subsequent crash
- var event = document.createEvent("UIEvents");
- event.initUIEvent("input", true, true, window, 0);
- sessionData.dispatchEvent(event);
-
- var s = new Components.utils.Sandbox("about:blank");
- gStateObject = Components.utils.evalInSandbox("(" + sessionData.value + ")", s);
-
- initTreeView();
-
- document.getElementById("errorTryAgain").focus();
- };
-
- function initTreeView() {
- var tabList = document.getElementById("tabList");
- var winLabel = tabList.getAttribute("_window_label");
-
- gTreeData = [];
- gStateObject.windows.forEach(function(aWinData, aIx) {
- var winState = {
- label: winLabel.replace("%S", (aIx + 1)),
- open: true,
- checked: true,
- ix: aIx
- };
- winState.tabs = aWinData.tabs.map(function(aTabData) {
- var entry = aTabData.entries[aTabData.index - 1] || { url: "about:blank" };
- var iconURL = aTabData.attributes && aTabData.attributes.image || null;
- // don't initiate a connection just to fetch a favicon (see bug 462863)
- if (/^https?:/.test(iconURL))
- iconURL = "moz-anno:favicon:" + iconURL;
- return {
- label: entry.title || entry.url,
- checked: true,
- src: iconURL,
- parent: winState
- };
- });
- gTreeData.push(winState);
- for each (var tab in winState.tabs)
- gTreeData.push(tab);
- }, this);
-
- tabList.view = treeView;
- tabList.view.selection.select(0);
- }
-
- // User actions
-
- function restoreSession() {
- document.getElementById("errorTryAgain").disabled = true;
-
- // remove all unselected tabs from the state before restoring it
- var ix = gStateObject.windows.length - 1;
- for (var t = gTreeData.length - 1; t >= 0; t--) {
- if (treeView.isContainer(t)) {
- if (gTreeData[t].checked === 0)
- // this window will be restored partially
- gStateObject.windows[ix].tabs =
- gStateObject.windows[ix].tabs.filter(function(aTabData, aIx)
- gTreeData[t].tabs[aIx].checked);
- else if (!gTreeData[t].checked)
- // this window won't be restored at all
- gStateObject.windows.splice(ix, 1);
- ix--;
- }
- }
- var stateString = gStateObject.toSource();
-
- var ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
- var top = getBrowserWindow();
-
- // if there's only this page open, reuse the window for restoring the session
- if (top.gBrowser.tabContainer.childNodes.length == 1) {
- ss.setWindowState(top, stateString, true);
- return;
- }
-
- // restore the session into a new window and close the current tab
- var newWindow = top.openDialog(top.location, "_blank", "chrome,dialog=no,all");
- newWindow.addEventListener("load", function() {
- newWindow.removeEventListener("load", arguments.callee, true);
- ss.setWindowState(newWindow, stateString, true);
-
- var tabbrowser = top.gBrowser;
- var tabIndex = tabbrowser.getBrowserIndexForDocument(document);
- tabbrowser.removeTab(tabbrowser.tabContainer.childNodes[tabIndex]);
- }, true);
- }
-
- function startNewSession() {
- getBrowserWindow().BrowserHome();
- }
-
- function onListClick(aEvent) {
- // don't react to right-clicks
- if (aEvent.button == 2)
- return;
-
- var row = {}, col = {};
- treeView.treeBox.getCellAt(aEvent.clientX, aEvent.clientY, row, col, {});
- if (col.value) {
- // restore this specific tab in the same window for middle-clicking
- // or Ctrl+clicking on a tab's title
- if ((aEvent.button == 1 || aEvent.ctrlKey) && col.value.id == "title" &&
- !treeView.isContainer(row.value))
- restoreSingleTab(row.value, aEvent.shiftKey);
- else if (col.value.id == "restore")
- toggleRowChecked(row.value);
- }
- }
-
- function onListKeyDown(aEvent) {
- switch (aEvent.keyCode)
- {
- case KeyEvent.DOM_VK_SPACE:
- toggleRowChecked(document.getElementById("tabList").currentIndex);
- break;
- case KeyEvent.DOM_VK_RETURN:
- var ix = document.getElementById("tabList").currentIndex;
- if (aEvent.ctrlKey && !treeView.isContainer(ix))
- restoreSingleTab(ix, aEvent.shiftKey);
- break;
- case KeyEvent.DOM_VK_UP:
- case KeyEvent.DOM_VK_DOWN:
- case KeyEvent.DOM_VK_PAGE_UP:
- case KeyEvent.DOM_VK_PAGE_DOWN:
- case KeyEvent.DOM_VK_HOME:
- case KeyEvent.DOM_VK_END:
- aEvent.preventDefault(); // else the page scrolls unwantedly
- break;
- }
- }
-
- // Helper functions
-
- function getBrowserWindow() {
- return window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebNavigation)
- .QueryInterface(Ci.nsIDocShellTreeItem).rootTreeItem
- .QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
- }
-
- function toggleRowChecked(aIx) {
- var item = gTreeData[aIx];
- item.checked = !item.checked;
- treeView.treeBox.invalidateRow(aIx);
-
- function isChecked(aItem) aItem.checked;
-
- if (treeView.isContainer(aIx)) {
- // (un)check all tabs of this window as well
- for each (var tab in item.tabs) {
- tab.checked = item.checked;
- treeView.treeBox.invalidateRow(gTreeData.indexOf(tab));
- }
- }
- else {
- // update the window's checkmark as well (0 means "partially checked")
- item.parent.checked = item.parent.tabs.every(isChecked) ? true :
- item.parent.tabs.some(isChecked) ? 0 : false;
- treeView.treeBox.invalidateRow(gTreeData.indexOf(item.parent));
- }
-
- document.getElementById("errorTryAgain").disabled = !gTreeData.some(isChecked);
- }
-
- function restoreSingleTab(aIx, aShifted) {
- var tabbrowser = getBrowserWindow().gBrowser;
- var newTab = tabbrowser.addTab();
- var item = gTreeData[aIx];
-
- var ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
- var tabState = gStateObject.windows[item.parent.ix]
- .tabs[aIx - gTreeData.indexOf(item.parent) - 1];
- ss.setTabState(newTab, tabState.toSource());
-
- // respect the preference as to whether to select the tab (the Shift key inverses)
- var prefBranch = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
- if (prefBranch.getBoolPref("browser.tabs.loadInBackground") != !aShifted)
- tabbrowser.selectedTab = newTab;
- }
-
- // Tree controller
-
- var treeView = {
- _atoms: {},
- _getAtom: function(aName)
- {
- if (!this._atoms[aName]) {
- var as = Cc["@mozilla.org/atom-service;1"].getService(Ci.nsIAtomService);
- this._atoms[aName] = as.getAtom(aName);
- }
- return this._atoms[aName];
- },
-
- treeBox: null,
- selection: null,
-
- get rowCount() { return gTreeData.length; },
- setTree: function(treeBox) { this.treeBox = treeBox; },
- getCellText: function(idx, column) { return gTreeData[idx].label; },
- isContainer: function(idx) { return "open" in gTreeData[idx]; },
- getCellValue: function(idx, column){ return gTreeData[idx].checked; },
- isContainerOpen: function(idx) { return gTreeData[idx].open; },
- isContainerEmpty: function(idx) { return false; },
- isSeparator: function(idx) { return false; },
- isSorted: function() { return false; },
- isEditable: function(idx, column) { return false; },
- getLevel: function(idx) { return this.isContainer(idx) ? 0 : 1; },
-
- getParentIndex: function(idx) {
- if (!this.isContainer(idx))
- for (var t = idx - 1; t >= 0 ; t--)
- if (this.isContainer(t))
- return t;
- return -1;
- },
-
- hasNextSibling: function(idx, after) {
- var thisLevel = this.getLevel(idx);
- for (var t = after + 1; t < gTreeData.length; t++)
- if (this.getLevel(t) <= thisLevel)
- return this.getLevel(t) == thisLevel;
- return false;
- },
-
- toggleOpenState: function(idx) {
- if (!this.isContainer(idx))
- return;
- var item = gTreeData[idx];
- if (item.open) {
- // remove this window's tab rows from the view
- var thisLevel = this.getLevel(idx);
- for (var t = idx + 1; t < gTreeData.length && this.getLevel(t) > thisLevel; t++);
- var deletecount = t - idx - 1;
- gTreeData.splice(idx + 1, deletecount);
- this.treeBox.rowCountChanged(idx + 1, -deletecount);
- }
- else {
- // add this window's tab rows to the view
- var toinsert = gTreeData[idx].tabs;
- for (var i = 0; i < toinsert.length; i++)
- gTreeData.splice(idx + i + 1, 0, toinsert[i]);
- this.treeBox.rowCountChanged(idx + 1, toinsert.length);
- }
- item.open = !item.open;
- this.treeBox.invalidateRow(idx);
- },
-
- getCellProperties: function(idx, column, prop) {
- if (column.id == "restore" && this.isContainer(idx) && gTreeData[idx].checked === 0)
- prop.AppendElement(this._getAtom("partial"));
- if (column.id == "title")
- prop.AppendElement(this._getAtom(this.getImageSrc(idx, column) ? "icon" : "noicon"));
- },
-
- getRowProperties: function(idx, prop) {
- var winState = gTreeData[idx].parent || gTreeData[idx];
- if (winState.ix % 2 != 0)
- prop.AppendElement(this._getAtom("alternate"));
- },
-
- getImageSrc: function(idx, column) {
- if (column.id == "title")
- return gTreeData[idx].src || null;
- return null;
- },
-
- getProgressMode : function(idx, column) { },
- cycleHeader: function(column) { },
- cycleCell: function(idx, column) { },
- selectionChanged: function() { },
- performAction: function(action) { },
- performActionOnCell: function(action, index, column) { },
- getColumnProperties: function(column, prop) { }
- };
-