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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;
}
};
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