forked from mirrors/gecko-dev
253 lines
8.4 KiB
JavaScript
253 lines
8.4 KiB
JavaScript
# ***** 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 Mozilla Firebird about dialog.
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#
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# The Initial Developer of the Original Code is
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# Blake Ross (blake@blakeross.com).
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# Portions created by the Initial Developer are Copyright (C) 2002
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Blake Ross <blake@blakeross.com>
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# Ben Goodger <ben@mozilla.org>
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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 LGPL or the GPL. 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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const kXUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
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const kIShellService = Components.interfaces.nsIShellService;
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#ifdef XP_MACOSX
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const kIMacShellService = Components.interfaces.nsIMacShellService;
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#endif
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var gSetBackground = {
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_position : kIShellService.BACKGROUND_STRETCH,
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_monitor : null,
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_image : null,
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_backgroundColor : 0,
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#ifndef XP_MACOSX
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// Converts a color string in the format "#RRGGBB" to an integer.
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_hexStringToLong: function (aString)
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{
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return parseInt(aString.substring(1,3), 16) << 16 |
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parseInt(aString.substring(3,5), 16) << 8 |
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parseInt(aString.substring(5,7), 16);
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},
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_rgbToHex: function(aR, aG, aB)
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{
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var rHex = aR.toString(16).toUpperCase();
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var gHex = aG.toString(16).toUpperCase();
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var bHex = aB.toString(16).toUpperCase();
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if (rHex.length == 1) rHex ='0' + rHex;
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if (gHex.length == 1) gHex ='0' + gHex;
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if (bHex.length == 1) bHex ='0' + bHex;
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return '#' + rHex + gHex + bHex;
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},
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#endif
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get _shell()
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{
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return Components.classes["@mozilla.org/browser/shell-service;1"]
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.getService(Components.interfaces.nsIShellService);
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},
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load: function ()
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{
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this._monitor = document.getElementById("monitor");
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#ifdef XP_MACOSX
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document.documentElement.getButton("accept").hidden = true;
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#endif
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this.init(window.arguments[0]);
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},
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init: function (aImage)
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{
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this._image = aImage;
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#ifndef XP_MACOSX
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this._initColor();
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var position = parseInt(document.getElementById("menuPosition").value);
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#else
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// Make sure to reset the button state in case the user has already
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// set an image as their desktop background.
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var setDesktopBackground = document.getElementById("setDesktopBackground");
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setDesktopBackground.hidden = false;
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var bundle = document.getElementById("backgroundBundle");
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setDesktopBackground.label = bundle.getString("DesktopBackgroundSet");
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setDesktopBackground.disabled = false;
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var showDesktopPreferences = document.getElementById("showDesktopPreferences");
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showDesktopPreferences.hidden = true;
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var position = kIShellService.BACKGROUND_STRETCH;
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#endif
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this.updatePosition(position);
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},
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#ifndef XP_MACOSX
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_initColor: function ()
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{
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var color = this._shell.desktopBackgroundColor;
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const rMask = 4294901760;
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const gMask = 65280;
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const bMask = 255;
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var r = (color & rMask) >> 16;
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var g = (color & gMask) >> 8;
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var b = (color & bMask);
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this._backgroundColor = this._rgbToHex(r, g, b);
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var colorpicker = document.getElementById("desktopColor");
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colorpicker.color = this._rgbToHex(r, g, b);
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},
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#endif
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observe: function (aSubject, aTopic, aData)
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{
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if (aTopic == "shell:desktop-background-changed") {
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var setDesktopBackground = document.getElementById("setDesktopBackground");
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setDesktopBackground.hidden = true;
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var showDesktopPreferences = document.getElementById("showDesktopPreferences");
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showDesktopPreferences.hidden = false;
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var os = Components.classes["@mozilla.org/observer-service;1"]
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.getService(Components.interfaces.nsIObserverService);
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os.removeObserver(this, "shell:desktop-background-changed");
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}
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},
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#ifdef XP_MACOSX
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setDesktopBackground: function()
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{
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var os = Components.classes["@mozilla.org/observer-service;1"]
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.getService(Components.interfaces.nsIObserverService);
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os.addObserver(this, "shell:desktop-background-changed", false);
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var bundle = document.getElementById("backgroundBundle");
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var setDesktopBackground = document.getElementById("setDesktopBackground");
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setDesktopBackground.disabled = true;
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setDesktopBackground.label = bundle.getString("DesktopBackgroundDownloading");
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this._shell.setDesktopBackground(this._image, this._position);
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},
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showDesktopPrefs: function()
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{
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this._shell.openApplication(kIMacShellService.APPLICATION_DESKTOP);
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},
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#else
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setDesktopBackground: function ()
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{
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this._shell.setDesktopBackground(this._image, this._position);
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this._shell.desktopBackgroundColor = this._hexStringToLong(this._backgroundColor);
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document.persist("menuPosition", "value");
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},
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#endif
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updateColor: function (color)
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{
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#ifndef XP_MACOSX
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this._backgroundColor = color;
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if (this._position != kIShellService.BACKGROUND_TILE)
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this._monitor.style.backgroundColor = color;
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#endif
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},
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updatePosition: function (aPosition)
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{
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if (this._monitor.childNodes.length)
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this._monitor.removeChild(this._monitor.firstChild);
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this._position = aPosition;
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if (this._position == kIShellService.BACKGROUND_TILE)
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this._tileImage();
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else if (this._position == kIShellService.BACKGROUND_STRETCH)
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this._stretchImage();
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else
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this._centerImage();
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},
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_createImage: function ()
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{
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const nsIImageLoadingContent = Components.interfaces.nsIImageLoadingContent;
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if (!(this._image instanceof nsIImageLoadingContent))
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return false;
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var request = this._image.QueryInterface(nsIImageLoadingContent)
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.getRequest(nsIImageLoadingContent.CURRENT_REQUEST);
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if (!request)
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return false;
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var imgURI = this._image.currentURI;
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if (imgURI.schemeIs("javascript"))
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return false;
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var img = document.createElementNS(kXUL_NS, "image");
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img.setAttribute("src", imgURI.spec);
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return img;
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},
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_stretchImage: function ()
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{
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this.updateColor(this._backgroundColor);
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var img = this._createImage();
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img.width = parseInt(this._monitor.style.width);
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img.height = parseInt(this._monitor.style.height);
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this._monitor.appendChild(img);
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},
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_tileImage: function ()
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{
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var bundle = document.getElementById("backgroundBundle");
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this._monitor.style.backgroundColor = "white";
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var text = document.createElementNS(kXUL_NS, "label");
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text.setAttribute("id", "noPreviewAvailable");
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text.setAttribute("value", bundle.getString("DesktopBackgroundNoPreview"));
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this._monitor.appendChild(text);
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},
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_centerImage: function ()
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{
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this.updateColor(this._backgroundColor);
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var img = this._createImage();
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// Use naturalHeight/Width here so we don't scale an image improperly in
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// the preview window if the image is resized in the browser window.
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var width = this._image.naturalWidth * this._monitor.boxObject.width / screen.width;
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var height = this._image.naturalHeight * this._monitor.boxObject.height / screen.height;
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img.width = Math.floor(width);
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img.height = Math.floor(height);
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this._monitor.appendChild(img);
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}
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};
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