gecko-dev/devtools/bootstrap.js

104 lines
3.3 KiB
JavaScript

/* 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 Cu = Components.utils;
const Ci = Components.interfaces;
const {Services} = Cu.import("resource://gre/modules/Services.jsm", {});
// Helper to listen to a key on all windows
function MultiWindowKeyListener({ keyCode, ctrlKey, altKey, callback }) {
let keyListener = function (event) {
if (event.ctrlKey == !!ctrlKey &&
event.altKey == !!altKey &&
event.keyCode === keyCode) {
callback(event);
// Call preventDefault to avoid duplicated events when
// doing the key stroke within a tab.
event.preventDefault();
}
};
let observer = function (window, topic, data) {
// Listen on keyup to call keyListener only once per stroke
if (topic === "domwindowopened") {
window.addEventListener("keyup", keyListener);
} else {
window.removeEventListener("keyup", keyListener);
}
};
return {
start: function () {
// Automatically process already opened windows
let e = Services.ww.getWindowEnumerator();
while (e.hasMoreElements()) {
let window = e.getNext();
observer(window, "domwindowopened", null);
}
// And listen for new ones to come
Services.ww.registerNotification(observer);
},
stop: function () {
Services.ww.unregisterNotification(observer);
let e = Services.ww.getWindowEnumerator();
while (e.hasMoreElements()) {
let window = e.getNext();
observer(window, "domwindowclosed", null);
}
}
};
};
let getTopLevelWindow = function (window) {
return window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebNavigation)
.QueryInterface(Ci.nsIDocShellTreeItem)
.rootTreeItem
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindow);
};
function reload(event) {
// We automatically reload the toolbox if we are on a browser tab
// with a toolbox already opened
let top = getTopLevelWindow(event.view)
let isBrowser = top.location.href.includes("/browser.xul") && top.gDevToolsBrowser;
let reloadToolbox = false;
if (isBrowser && top.gDevToolsBrowser.hasToolboxOpened) {
reloadToolbox = top.gDevToolsBrowser.hasToolboxOpened(top);
}
dump("Reload DevTools. (reload-toolbox:"+reloadToolbox+")\n");
// Invalidate xul cache in order to see changes made to chrome:// files
Services.obs.notifyObservers(null, "startupcache-invalidate", null);
// Ask the loader to update itself and reopen the toolbox if needed
const {devtools} = Cu.import("resource://devtools/shared/Loader.jsm", {});
devtools.reload(reloadToolbox);
// Also tells gDevTools to reload its dependencies
const {gDevTools} = Cu.import("resource://devtools/client/framework/gDevTools.jsm", {});
gDevTools.reload();
}
let listener;
function startup() {
dump("DevTools addon started.\n");
listener = new MultiWindowKeyListener({
keyCode: Ci.nsIDOMKeyEvent.DOM_VK_R, ctrlKey: true, altKey: true,
callback: reload
});
listener.start();
}
function shutdown() {
listener.stop();
listener = null;
}
function install() {}
function uninstall() {}