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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {interfaces: Ci, utils: Cu} = Components;
this.EXPORTED_SYMBOLS = ["Windows8WindowFrameColor"];
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
var Registry = Cu.import("resource://gre/modules/WindowsRegistry.jsm").WindowsRegistry;
var Windows8WindowFrameColor = {
_windowFrameColor: null,
get: function() {
if (this._windowFrameColor)
return this._windowFrameColor;
const HKCU = Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER;
const dwmKey = "Software\\Microsoft\\Windows\\DWM";
let customizationColor = Registry.readRegKey(HKCU, dwmKey,
"ColorizationColor");
if (customizationColor == undefined) {
// Seems to be the default color (hardcoded because of bug 1065998)
return [158, 158, 158];
}
// The color returned from the Registry is in decimal form.
let customizationColorHex = customizationColor.toString(16);
// Zero-pad the number just to make sure that it is 8 digits.
customizationColorHex = ("00000000" + customizationColorHex).substr(-8);
let customizationColorArray = customizationColorHex.match(/../g);
let [, fgR, fgG, fgB] = customizationColorArray.map(val => parseInt(val, 16));
let colorizationColorBalance = Registry.readRegKey(HKCU, dwmKey,
"ColorizationColorBalance");
if (colorizationColorBalance == undefined) {
colorizationColorBalance = 78;
}
// Window frame base color when Color Intensity is at 0, see bug 1004576.
let frameBaseColor = 217;
let alpha = colorizationColorBalance / 100;
// Alpha-blend the foreground color with the frame base color.
let r = Math.round(fgR * alpha + frameBaseColor * (1 - alpha));
let g = Math.round(fgG * alpha + frameBaseColor * (1 - alpha));
let b = Math.round(fgB * alpha + frameBaseColor * (1 - alpha));
return this._windowFrameColor = [r, g, b];
},
};
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