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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* 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 EventEmitter = require("devtools/shared/event-emitter");
/**
* A partial implementation of the Menu API provided by electron:
* https://github.com/electron/electron/blob/master/docs/api/menu.md.
*
* Extra features:
* - Emits an 'open' and 'close' event when the menu is opened/closed
* @param String id (non standard)
* Needed so tests can confirm the XUL implementation is working
*/
function Menu({ id = null } = {}) {
this.menuitems = [];
this.id = id;
Object.defineProperty(this, "items", {
get() {
return this.menuitems;
}
});
EventEmitter.decorate(this);
}
/**
* Add an item to the end of the Menu
*
* @param {MenuItem} menuItem
*/
Menu.prototype.append = function (menuItem) {
this.menuitems.push(menuItem);
};
/**
* Add an item to a specified position in the menu
*
* @param {int} pos
* @param {MenuItem} menuItem
*/
Menu.prototype.insert = function (pos, menuItem) {
throw Error("Not implemented");
};
/**
* Show the Menu at a specified location on the screen
*
* Missing features:
* - browserWindow - BrowserWindow (optional) - Default is null.
* - positioningItem Number - (optional) OS X
*
* @param {int} screenX
* @param {int} screenY
* @param Toolbox toolbox (non standard)
* Needed so we in which window to inject XUL
*/
Menu.prototype.popup = function (screenX, screenY, toolbox) {
let doc = toolbox.doc;
let popupset = doc.querySelector("popupset");
// See bug 1285229, on Windows, opening the same popup multiple times in a
// row ends up duplicating the popup. The newly inserted popup doesn't
// dismiss the old one. So remove any previously displayed popup before
// opening a new one.
let popup = popupset.querySelector("menupopup[menu-api=\"true\"]");
if (popup) {
popup.hidePopup();
}
popup = doc.createElement("menupopup");
popup.setAttribute("menu-api", "true");
if (this.id) {
popup.id = this.id;
}
this._createMenuItems(popup);
// Remove the menu from the DOM once it's hidden.
popup.addEventListener("popuphidden", (e) => {
if (e.target === popup) {
popup.remove();
this.emit("close");
}
});
popup.addEventListener("popupshown", (e) => {
if (e.target === popup) {
this.emit("open");
}
});
popupset.appendChild(popup);
popup.openPopupAtScreen(screenX, screenY, true);
};
Menu.prototype._createMenuItems = function (parent) {
let doc = parent.ownerDocument;
this.menuitems.forEach(item => {
if (!item.visible) {
return;
}
if (item.submenu) {
let menupopup = doc.createElement("menupopup");
item.submenu._createMenuItems(menupopup);
let menu = doc.createElement("menu");
menu.appendChild(menupopup);
menu.setAttribute("label", item.label);
if (item.disabled) {
menu.setAttribute("disabled", "true");
}
if (item.accesskey) {
menu.setAttribute("accesskey", item.accesskey);
}
if (item.id) {
menu.id = item.id;
}
parent.appendChild(menu);
} else if (item.type === "separator") {
let menusep = doc.createElement("menuseparator");
parent.appendChild(menusep);
} else {
let menuitem = doc.createElement("menuitem");
menuitem.setAttribute("label", item.label);
menuitem.addEventListener("command", () => {
item.click();
});
if (item.type === "checkbox") {
menuitem.setAttribute("type", "checkbox");
}
if (item.type === "radio") {
menuitem.setAttribute("type", "radio");
}
if (item.disabled) {
menuitem.setAttribute("disabled", "true");
}
if (item.checked) {
menuitem.setAttribute("checked", "true");
}
if (item.accesskey) {
menuitem.setAttribute("accesskey", item.accesskey);
}
if (item.id) {
menuitem.id = item.id;
}
parent.appendChild(menuitem);
}
});
};
Menu.setApplicationMenu = () => {
throw Error("Not implemented");
};
Menu.sendActionToFirstResponder = () => {
throw Error("Not implemented");
};
Menu.buildFromTemplate = () => {
throw Error("Not implemented");
};
module.exports = Menu;
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