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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* 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 { Cc, Ci, Cu, Cr } = require("chrome");
const promise = require("promise");
const EventEmitter = require("devtools/shared/event-emitter");
const DevToolsUtils = require("devtools/shared/DevToolsUtils");
function DebuggerPanel(iframeWindow, toolbox) {
this.panelWin = iframeWindow;
this._toolbox = toolbox;
this._destroyer = null;
this._view = this.panelWin.DebuggerView;
this._controller = this.panelWin.DebuggerController;
this._view._hostType = this._toolbox.hostType;
this._controller._target = this.target;
this._controller._toolbox = this._toolbox;
this.handleHostChanged = this.handleHostChanged.bind(this);
EventEmitter.decorate(this);
}
exports.DebuggerPanel = DebuggerPanel;
DebuggerPanel.prototype = {
/**
* Open is effectively an asynchronous constructor.
*
* @return object
* A promise that is resolved when the Debugger completes opening.
*/
open: function () {
let targetPromise;
// Local debugging needs to make the target remote.
if (!this.target.isRemote) {
targetPromise = this.target.makeRemote();
// Listen for tab switching events to manage focus when the content window
// is paused and events suppressed.
this.target.tab.addEventListener("TabSelect", this);
} else {
targetPromise = promise.resolve(this.target);
}
return targetPromise
.then(() => this._controller.startupDebugger())
.then(() => this._controller.connect())
.then(() => {
this._toolbox.on("host-changed", this.handleHostChanged);
// Add keys from this document's keyset to the toolbox, so they
// can work when the split console is focused.
let keysToClone = ["resumeKey", "stepOverKey", "stepInKey", "stepOutKey"];
for (let key of keysToClone) {
let elm = this.panelWin.document.getElementById(key);
let keycode = elm.getAttribute("keycode");
let modifiers = elm.getAttribute("modifiers");
let command = elm.getAttribute("command");
let handler = this._view.Toolbar.getCommandHandler(command);
let keyShortcut = this.translateToKeyShortcut(keycode, modifiers);
this._toolbox.useKeyWithSplitConsole(keyShortcut, handler, "jsdebugger");
}
this.isReady = true;
this.emit("ready");
return this;
})
.then(null, function onError(aReason) {
DevToolsUtils.reportException("DebuggerPanel.prototype.open", aReason);
});
},
/**
* Translate a VK_ keycode, with modifiers, to a key shortcut that can be used with
* shared/key-shortcut.
*
* @param {String} keycode
* The VK_* keycode to translate
* @param {String} modifiers
* The list (blank-space separated) of modifiers applying to this keycode.
* @return {String} a key shortcut ready to be used with shared/key-shortcut.js
*/
translateToKeyShortcut: function (keycode, modifiers) {
// Remove the VK_ prefix.
keycode = keycode.replace("VK_", "");
// Translate modifiers
if (modifiers.includes("shift")) {
keycode = "Shift+" + keycode;
}
if (modifiers.includes("alt")) {
keycode = "Alt+" + keycode;
}
if (modifiers.includes("control")) {
keycode = "Ctrl+" + keycode;
}
if (modifiers.includes("meta")) {
keycode = "Cmd+" + keycode;
}
if (modifiers.includes("accel")) {
keycode = "CmdOrCtrl+" + keycode;
}
return keycode;
},
// DevToolPanel API
get target() {
return this._toolbox.target;
},
destroy: function () {
// Make sure this panel is not already destroyed.
if (this._destroyer) {
return this._destroyer;
}
if (!this.target.isRemote) {
this.target.tab.removeEventListener("TabSelect", this);
}
return this._destroyer = this._controller.shutdownDebugger().then(() => {
this.emit("destroyed");
});
},
// DebuggerPanel API
getFrames() {
let framesController = this.panelWin.DebuggerController.StackFrames;
let thread = framesController.activeThread;
if (thread && thread.paused) {
return {
frames: thread.cachedFrames,
selected: framesController.currentFrameDepth,
};
}
return null;
},
addBreakpoint: function (location) {
const { actions } = this.panelWin;
const { dispatch } = this._controller;
return dispatch(actions.addBreakpoint(location));
},
removeBreakpoint: function (location) {
const { actions } = this.panelWin;
const { dispatch } = this._controller;
return dispatch(actions.removeBreakpoint(location));
},
blackbox: function (source, flag) {
const { actions } = this.panelWin;
const { dispatch } = this._controller;
return dispatch(actions.blackbox(source, flag));
},
handleHostChanged: function () {
this._view.handleHostChanged(this._toolbox.hostType);
},
// nsIDOMEventListener API
handleEvent: function (aEvent) {
if (aEvent.target == this.target.tab &&
this._controller.activeThread.state == "paused") {
// Wait a tick for the content focus event to be delivered.
DevToolsUtils.executeSoon(() => this._toolbox.focusTool("jsdebugger"));
}
}
};
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