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gecko/browser/components/preferences/main.js

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# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
# ***** 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 Firefox Preferences System.
#
# The Initial Developer of the Original Code is
# Jeff Walden <jwalden+code@mit.edu>.
# Portions created by the Initial Developer are Copyright (C) 2006
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Ben Goodger <ben@mozilla.org>
# Asaf Romano <mozilla.mano@sent.com>
# Ehsan Akhgari <ehsan.akhgari@gmail.com>
#
# 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 *****
var gMainPane = {
_pane: null,
/**
* Initialization of this.
*/
init: function ()
{
this._pane = document.getElementById("paneMain");
// set up the "use current page" label-changing listener
this._updateUseCurrentButton();
window.addEventListener("focus", this._updateUseCurrentButton, false);
this.updateBrowserStartupLastSession();
// Notify observers that the UI is now ready
Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService)
.notifyObservers(window, "main-pane-loaded", null);
},
// HOME PAGE
/*
* Preferences:
*
* browser.startup.homepage
* - the user's home page, as a string; if the home page is a set of tabs,
* this will be those URLs separated by the pipe character "|"
* browser.startup.page
* - what page(s) to show when the user starts the application, as an integer:
*
* 0: a blank page
* 1: the home page (as set by the browser.startup.homepage pref)
* 2: the last page the user visited (DEPRECATED)
* 3: windows and tabs from the last session (a.k.a. session restore)
*
* The deprecated option is not exposed in UI; however, if the user has it
* selected and doesn't change the UI for this preference, the deprecated
* option is preserved.
*/
syncFromHomePref: function ()
{
let homePref = document.getElementById("browser.startup.homepage");
// If the pref is set to about:home, set the value to "" to show the
// placeholder text (about:home title).
if (homePref.value.toLowerCase() == "about:home")
return "";
// If the pref is actually "", show about:blank. The actual home page
// loading code treats them the same, and we don't want the placeholder text
// to be shown.
if (homePref.value == "")
return "about:blank";
// Otherwise, show the actual pref value.
return undefined;
},
syncToHomePref: function (value)
{
// If the value is "", use about:home.
if (value == "")
return "about:home";
// Otherwise, use the actual textbox value.
return undefined;
},
/**
* Sets the home page to the current displayed page (or frontmost tab, if the
* most recent browser window contains multiple tabs), updating preference
* window UI to reflect this.
*/
setHomePageToCurrent: function ()
{
var win;
if (document.documentElement.instantApply) {
// If we're in instant-apply mode, use the most recent browser window
var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
.getService(Components.interfaces.nsIWindowMediator);
win = wm.getMostRecentWindow("navigator:browser");
}
else
win = window.opener;
if (win) {
var homePage = document.getElementById("browser.startup.homepage");
var browser = win.document.getElementById("content");
var newVal = browser.browsers[0].currentURI.spec;
if (browser.browsers.length > 1) {
// XXX using dangerous "|" joiner!
for (var i = 1; i < browser.browsers.length; i++)
newVal += "|" + browser.browsers[i].currentURI.spec;
}
homePage.value = newVal;
}
},
/**
* Displays a dialog in which the user can select a bookmark to use as home
* page. If the user selects a bookmark, that bookmark's name is displayed in
* UI and the bookmark's address is stored to the home page preference.
*/
setHomePageToBookmark: function ()
{
var rv = { urls: null, names: null };
document.documentElement.openSubDialog("chrome://browser/content/preferences/selectBookmark.xul",
"resizable", rv);
if (rv.urls && rv.names) {
var homePage = document.getElementById("browser.startup.homepage");
// XXX still using dangerous "|" joiner!
homePage.value = rv.urls.join("|");
}
},
/**
* Switches the "Use Current Page" button between its singular and plural
* forms.
*/
_updateUseCurrentButton: function () {
var useCurrent = document.getElementById("useCurrent");
var windowIsPresent;
var win;
if (document.documentElement.instantApply) {
const Cc = Components.classes, Ci = Components.interfaces;
// If we're in instant-apply mode, use the most recent browser window
var wm = Cc["@mozilla.org/appshell/window-mediator;1"]
.getService(Ci.nsIWindowMediator);
win = wm.getMostRecentWindow("navigator:browser");
}
else
win = window.opener;
if (win && win.document.documentElement
.getAttribute("windowtype") == "navigator:browser") {
windowIsPresent = true;
var tabbrowser = win.document.getElementById("content");
if (tabbrowser.browsers.length > 1)
useCurrent.label = useCurrent.getAttribute("label2");
else
useCurrent.label = useCurrent.getAttribute("label1");
}
else {
windowIsPresent = false;
useCurrent.label = useCurrent.getAttribute("label1");
}
// In this case, the button's disabled state is set by preferences.xml.
if (document.getElementById
("pref.browser.homepage.disable_button.current_page").locked)
return;
useCurrent.disabled = !windowIsPresent;
},
/**
* Restores the default home page as the user's home page.
*/
restoreDefaultHomePage: function ()
{
var homePage = document.getElementById("browser.startup.homepage");
homePage.value = homePage.defaultValue;
},
// DOWNLOADS
/*
* Preferences:
*
* browser.download.showWhenStarting - bool
* True if the Download Manager should be opened when a download is
* started, false if it shouldn't be opened.
* browser.download.closeWhenDone - bool
* True if the Download Manager should be closed when all downloads
* complete, false if it should be left open.
* browser.download.useDownloadDir - bool
* True - Save files directly to the folder configured via the
* browser.download.folderList preference.
* False - Always ask the user where to save a file and default to
* browser.download.lastDir when displaying a folder picker dialog.
* browser.download.dir - local file handle
* A local folder the user may have selected for downloaded files to be
* saved. Migration of other browser settings may also set this path.
* This folder is enabled when folderList equals 2.
* browser.download.lastDir - local file handle
* May contain the last folder path accessed when the user browsed
* via the file save-as dialog. (see contentAreaUtils.js)
* browser.download.folderList - int
* Indicates the location users wish to save downloaded files too.
* It is also used to display special file labels when the default
* download location is either the Desktop or the Downloads folder.
* Values:
* 0 - The desktop is the default download location.
* 1 - The system's downloads folder is the default download location.
* 2 - The default download location is elsewhere as specified in
* browser.download.dir.
* browser.download.downloadDir
* deprecated.
* browser.download.defaultFolder
* deprecated.
*/
/**
* Updates preferences which depend upon the value of the preference which
* determines whether the Downloads manager is opened at the start of a
* download.
*/
readShowDownloadsWhenStarting: function ()
{
this.showDownloadsWhenStartingPrefChanged();
// don't override the preference's value in UI
return undefined;
},
/**
* Enables or disables the "close Downloads manager when downloads finished"
* preference element, consequently updating the associated UI.
*/
showDownloadsWhenStartingPrefChanged: function ()
{
var showWhenStartingPref = document.getElementById("browser.download.manager.showWhenStarting");
var closeWhenDonePref = document.getElementById("browser.download.manager.closeWhenDone");
closeWhenDonePref.disabled = !showWhenStartingPref.value;
},
/**
* Enables/disables the folder field and Browse button based on whether a
* default download directory is being used.
*/
readUseDownloadDir: function ()
{
var downloadFolder = document.getElementById("downloadFolder");
var chooseFolder = document.getElementById("chooseFolder");
var preference = document.getElementById("browser.download.useDownloadDir");
downloadFolder.disabled = !preference.value;
chooseFolder.disabled = !preference.value;
// don't override the preference's value in UI
return undefined;
},
/**
* Displays a file picker in which the user can choose the location where
* downloads are automatically saved, updating preferences and UI in
* response to the choice, if one is made.
*/
chooseFolder: function ()
{
const nsIFilePicker = Components.interfaces.nsIFilePicker;
const nsILocalFile = Components.interfaces.nsILocalFile;
var fp = Components.classes["@mozilla.org/filepicker;1"]
.createInstance(nsIFilePicker);
var bundlePreferences = document.getElementById("bundlePreferences");
var title = bundlePreferences.getString("chooseDownloadFolderTitle");
fp.init(window, title, nsIFilePicker.modeGetFolder);
fp.appendFilters(nsIFilePicker.filterAll);
var folderListPref = document.getElementById("browser.download.folderList");
var currentDirPref = this._indexToFolder(folderListPref.value); // file
var defDownloads = this._indexToFolder(1); // file
// First try to open what's currently configured
if (currentDirPref && currentDirPref.exists()) {
fp.displayDirectory = currentDirPref;
} // Try the system's download dir
else if (defDownloads && defDownloads.exists()) {
fp.displayDirectory = defDownloads;
} // Fall back to Desktop
else {
fp.displayDirectory = this._indexToFolder(0);
}
if (fp.show() == nsIFilePicker.returnOK) {
var file = fp.file.QueryInterface(nsILocalFile);
var currentDirPref = document.getElementById("browser.download.dir");
currentDirPref.value = file;
var folderListPref = document.getElementById("browser.download.folderList");
folderListPref.value = this._folderToIndex(file);
// Note, the real prefs will not be updated yet, so dnld manager's
// userDownloadsDirectory may not return the right folder after
// this code executes. displayDownloadDirPref will be called on
// the assignment above to update the UI.
}
},
/**
* Initializes the download folder display settings based on the user's
* preferences.
*/
displayDownloadDirPref: function ()
{
var folderListPref = document.getElementById("browser.download.folderList");
var bundlePreferences = document.getElementById("bundlePreferences");
var downloadFolder = document.getElementById("downloadFolder");
var currentDirPref = document.getElementById("browser.download.dir");
// The user's download folder is based on the preferences listed above.
// However, if the system does not support a download folder, the
// actual path returned will be the system's desktop or home folder.
// If this is the case, skip off displaying the Download label and
// display Desktop, even though folderList might be 1.
var fileLocator = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
var desk = fileLocator.get("Desk", Components.interfaces.nsILocalFile);
var dnldMgr = Components.classes["@mozilla.org/download-manager;1"]
.getService(Components.interfaces.nsIDownloadManager);
var supportDownloadLabel = !dnldMgr.defaultDownloadsDirectory.equals(desk);
// Used in defining the correct path to the folder icon.
var ios = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
var fph = ios.getProtocolHandler("file")
.QueryInterface(Components.interfaces.nsIFileProtocolHandler);
var iconUrlSpec;
// Display a 'pretty' label or the path in the UI.
if (folderListPref.value == 2) {
// Custom path selected and is configured
downloadFolder.label = this._getDisplayNameOfFile(currentDirPref.value);
iconUrlSpec = fph.getURLSpecFromFile(currentDirPref.value);
} else if (folderListPref.value == 1 && supportDownloadLabel) {
// 'Downloads'
// In 1.5, this pointed to a folder we created called 'My Downloads'
// and was available as an option in the 1.5 drop down. On XP this
// was in My Documents, on OSX it was in User Docs. In 2.0, we did
// away with the drop down option, although the special label was
// still supported for the folder if it existed. Because it was
// not exposed it was rarely used.
// With 3.0, a new desktop folder - 'Downloads' was introduced for
// platforms and versions that don't support a default system downloads
// folder. See nsDownloadManager for details.
downloadFolder.label = bundlePreferences.getString("downloadsFolderName");
iconUrlSpec = fph.getURLSpecFromFile(this._indexToFolder(1));
} else {
// 'Desktop'
downloadFolder.label = bundlePreferences.getString("desktopFolderName");
iconUrlSpec = fph.getURLSpecFromFile(desk);
}
downloadFolder.image = "moz-icon://" + iconUrlSpec + "?size=16";
// don't override the preference's value in UI
return undefined;
},
/**
* Returns the textual path of a folder in readable form.
*/
_getDisplayNameOfFile: function (aFolder)
{
// TODO: would like to add support for 'Downloads on Macintosh HD'
// for OS X users.
return aFolder ? aFolder.path : "";
},
/**
* Returns the Downloads folder. If aFolder is "Desktop", then the Downloads
* folder returned is the desktop folder; otherwise, it is a folder whose name
* indicates that it is a download folder and whose path is as determined by
* the XPCOM directory service via the download manager's attribute
* defaultDownloadsDirectory.
*
* @throws if aFolder is not "Desktop" or "Downloads"
*/
_getDownloadsFolder: function (aFolder)
{
switch (aFolder) {
case "Desktop":
var fileLoc = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
return fileLoc.get("Desk", Components.interfaces.nsILocalFile);
break;
case "Downloads":
var dnldMgr = Components.classes["@mozilla.org/download-manager;1"]
.getService(Components.interfaces.nsIDownloadManager);
return dnldMgr.defaultDownloadsDirectory;
break;
}
throw "ASSERTION FAILED: folder type should be 'Desktop' or 'Downloads'";
},
/**
* Determines the type of the given folder.
*
* @param aFolder
* the folder whose type is to be determined
* @returns integer
* 0 if aFolder is the Desktop or is unspecified,
* 1 if aFolder is the Downloads folder,
* 2 otherwise
*/
_folderToIndex: function (aFolder)
{
if (!aFolder || aFolder.equals(this._getDownloadsFolder("Desktop")))
return 0;
else if (aFolder.equals(this._getDownloadsFolder("Downloads")))
return 1;
return 2;
},
/**
* Converts an integer into the corresponding folder.
*
* @param aIndex
* an integer
* @returns the Desktop folder if aIndex == 0,
* the Downloads folder if aIndex == 1,
* the folder stored in browser.download.dir
*/
_indexToFolder: function (aIndex)
{
switch (aIndex) {
case 0:
return this._getDownloadsFolder("Desktop");
case 1:
return this._getDownloadsFolder("Downloads");
}
var currentDirPref = document.getElementById("browser.download.dir");
return currentDirPref.value;
},
/**
* Returns the value for the browser.download.folderList preference.
*/
getFolderListPref: function ()
{
var folderListPref = document.getElementById("browser.download.folderList");
switch (folderListPref.value) {
case 0: // Desktop
case 1: // Downloads
return folderListPref.value;
break;
case 2: // Custom
var currentDirPref = document.getElementById("browser.download.dir");
if (currentDirPref.value) {
// Resolve to a known location if possible. We are writing out
// to prefs on this call, so now would be a good time to do it.
return this._folderToIndex(currentDirPref.value);
}
return 0;
break;
}
},
/**
* Displays the Add-ons Manager.
*/
showAddonsMgr: function ()
{
openUILinkIn("about:addons", "window");
},
/**
* Hide/show the "Show my windows and tabs from last time" option based
* on the value of the browser.privatebrowsing.autostart pref.
*/
updateBrowserStartupLastSession: function()
{
let pbAutoStartPref = document.getElementById("browser.privatebrowsing.autostart");
let startupPref = document.getElementById("browser.startup.page");
let menu = document.getElementById("browserStartupPage");
let option = document.getElementById("browserStartupLastSession");
if (pbAutoStartPref.value) {
option.setAttribute("disabled", "true");
if (option.selected) {
menu.selectedItem = document.getElementById("browserStartupHomePage");
}
} else {
option.removeAttribute("disabled");
startupPref.updateElements(); // select the correct index in the startup menulist
}
}
};
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