mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 21:55:31 +00:00
119 lines
4.3 KiB
JavaScript
119 lines
4.3 KiB
JavaScript
/* ***** 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 mozilla.org Code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Dao Gottwald <dao@mozilla.com>.
|
|
* Portions created by the Initial Developer are Copyright (C) 2009
|
|
* 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 ***** */
|
|
|
|
let EXPORTED_SYMBOLS = ["LightweightThemeConsumer"];
|
|
|
|
function LightweightThemeConsumer(aDocument) {
|
|
this._doc = aDocument;
|
|
this._footerId = aDocument.documentElement.getAttribute("lightweightthemesfooter");
|
|
|
|
Components.classes["@mozilla.org/observer-service;1"]
|
|
.getService(Components.interfaces.nsIObserverService)
|
|
.addObserver(this, "lightweight-theme-styling-update", false);
|
|
|
|
var temp = {};
|
|
Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", temp);
|
|
this._update(temp.LightweightThemeManager.currentThemeForDisplay);
|
|
}
|
|
|
|
LightweightThemeConsumer.prototype = {
|
|
observe: function (aSubject, aTopic, aData) {
|
|
if (aTopic != "lightweight-theme-styling-update")
|
|
return;
|
|
|
|
this._update(JSON.parse(aData));
|
|
},
|
|
|
|
destroy: function () {
|
|
Components.classes["@mozilla.org/observer-service;1"]
|
|
.getService(Components.interfaces.nsIObserverService)
|
|
.removeObserver(this, "lightweight-theme-styling-update");
|
|
|
|
this._doc = null;
|
|
},
|
|
|
|
_update: function (aData) {
|
|
if (!aData)
|
|
aData = { headerURL: "", footerURL: "", textcolor: "", accentcolor: "" };
|
|
|
|
var root = this._doc.documentElement;
|
|
var active = !!aData.headerURL;
|
|
|
|
if (active) {
|
|
root.style.color = aData.textcolor || "black";
|
|
root.style.backgroundColor = aData.accentcolor || "white";
|
|
let [r, g, b] = _parseRGB(this._doc.defaultView.getComputedStyle(root, "").color);
|
|
let luminance = 0.2125 * r + 0.7154 * g + 0.0721 * b;
|
|
root.setAttribute("lwthemetextcolor", luminance <= 110 ? "dark" : "bright");
|
|
root.setAttribute("lwtheme", "true");
|
|
} else {
|
|
root.style.color = "";
|
|
root.style.backgroundColor = "";
|
|
root.removeAttribute("lwthemetextcolor");
|
|
root.removeAttribute("lwtheme");
|
|
}
|
|
|
|
_setImage(root, active, aData.headerURL);
|
|
if (this._footerId) {
|
|
let footer = this._doc.getElementById(this._footerId);
|
|
footer.style.backgroundColor = active ? aData.accentcolor || "white" : "";
|
|
_setImage(footer, active, aData.footerURL);
|
|
if (active && aData.footerURL)
|
|
footer.setAttribute("lwthemefooter", "true");
|
|
else
|
|
footer.removeAttribute("lwthemefooter");
|
|
}
|
|
|
|
#ifdef XP_MACOSX
|
|
if (active)
|
|
root.setAttribute("drawintitlebar", "true");
|
|
else
|
|
root.removeAttribute("drawintitlebar");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
function _setImage(aElement, aActive, aURL) {
|
|
aElement.style.backgroundImage =
|
|
(aActive && aURL) ? 'url("' + aURL.replace('"', '\\"', "g") + '")' : "";
|
|
}
|
|
|
|
function _parseRGB(aColorString) {
|
|
var rgb = aColorString.match(/^rgba?\((\d+), (\d+), (\d+)/);
|
|
rgb.shift();
|
|
return rgb.map(function (x) parseInt(x));
|
|
}
|