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-rw-r--r--browser/base/content/browser-devtools-theme.js91
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diff --git a/browser/base/content/browser-devtools-theme.js b/browser/base/content/browser-devtools-theme.js
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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/. */
+
+/**
+ * Listeners for the DevTools theme.
+ */
+var DevToolsTheme = {
+ _devtoolsThemePrefName: "devtools.theme",
+ styleSheet: null,
+ initialized: false,
+
+ get isStyleSheetEnabled() {
+ return this.styleSheet && !this.styleSheet.sheet.disabled;
+ },
+
+ init: function () {
+ this.initialized = true;
+ Services.prefs.addObserver(this._devtoolsThemePrefName, this, false);
+ Services.obs.addObserver(this, "lightweight-theme-styling-update", false);
+ Services.obs.addObserver(this, "lightweight-theme-window-updated", false);
+ this._updateDevtoolsThemeAttribute();
+ },
+
+ observe: function (subject, topic, data) {
+ if (topic == "lightweight-theme-styling-update") {
+ let newTheme = JSON.parse(data);
+ this._toggleStyleSheet();
+ }
+
+ if (topic == "nsPref:changed" && data == this._devtoolsThemePrefName) {
+ this._updateDevtoolsThemeAttribute();
+ }
+ },
+
+ _inferBrightness: function() {
+ ToolbarIconColor.inferFromText();
+ // Get an inverted full screen button if the dark theme is applied.
+ if (this.isStyleSheetEnabled &&
+ document.documentElement.getAttribute("devtoolstheme") == "dark") {
+ document.documentElement.setAttribute("brighttitlebarforeground", "true");
+ } else {
+ document.documentElement.removeAttribute("brighttitlebarforeground");
+ }
+ },
+
+ _updateDevtoolsThemeAttribute: function() {
+ // Set an attribute on root element to make it possible
+ // to change colors based on the selected devtools theme.
+ let devtoolsTheme = Services.prefs.getCharPref(this._devtoolsThemePrefName);
+ if (devtoolsTheme != "dark") {
+ devtoolsTheme = "light";
+ }
+ document.documentElement.setAttribute("devtoolstheme", devtoolsTheme);
+ this._inferBrightness();
+ },
+
+ handleEvent: function(e) {
+ if (e.type === "load") {
+ this.styleSheet.removeEventListener("load", this);
+ this.refreshBrowserDisplay();
+ }
+ },
+
+ refreshBrowserDisplay: function() {
+ // Don't touch things on the browser if gBrowserInit.onLoad hasn't
+ // yet fired.
+ if (this.initialized) {
+ gBrowser.tabContainer._positionPinnedTabs();
+ this._inferBrightness();
+ }
+ },
+
+ _toggleStyleSheet: function() {
+ let wasEnabled = this.isStyleSheetEnabled;
+ if (wasEnabled) {
+ this.styleSheet.sheet.disabled = true;
+ this.refreshBrowserDisplay();
+ }
+ },
+
+ uninit: function () {
+ Services.prefs.removeObserver(this._devtoolsThemePrefName, this);
+ Services.obs.removeObserver(this, "lightweight-theme-styling-update", false);
+ Services.obs.removeObserver(this, "lightweight-theme-window-updated", false);
+ if (this.styleSheet) {
+ this.styleSheet.removeEventListener("load", this);
+ }
+ this.styleSheet = null;
+ }
+};