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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/. */
import { WindowsRegistry as Registry } from "resource://gre/modules/WindowsRegistry.sys.mjs";
export var Windows8WindowFrameColor = {
_windowFrameColor: null,
get() {
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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