electron-demo.js/tray.js

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var path = require('path');
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var electron = require('electron');
var app = electron.app;
var win, tray;
function updateTrayMenu () {
if (!tray) {
return;
}
var menuTemplate = [];
if (win.isVisible()) {
menuTemplate.push({
label: 'Hide to tray',
click: function () { win.hide(); },
});
} else {
menuTemplate.push({
label: 'Electron Demo App',
click: function () { win.show(); },
});
}
menuTemplate.push({
label: 'Quit',
click: function () { app.quit(); },
});
tray.setContextMenu(electron.Menu.buildFromTemplate(menuTemplate));
}
// Check to see if the tray is supported on this system. This code was mostly copied from
// the Webtorrent project.
function checkLinuxTraySupport (cb) {
var cp = require('child_process');
cp.exec('dpkg --get-selections libappindicator1', function (err, stdout) {
// Unfortunately there's no cleaner way, as far as I can tell, to check
// whether a debian package is installed:
if (err) {
cb(err);
} else if (stdout.endsWith('\tinstall\n')) {
cb(null);
} else {
cb(new Error('debian package not installed'));
}
});
}
function createTray() {
tray = new electron.Tray(path.join(__dirname, 'images', 'daplie-logo.png'));
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tray.on('click', function () { win.show(); });
updateTrayMenu();
}
function initLinux () {
checkLinuxTraySupport(function (err) {
if (!err) {
createTray();
}
});
}
function initWin32 () {
createTray();
}
function init(window) {
if (win) {
console.error("can't initialize the tray mulitple times");
return;
}
win = window;
win.on('blur', updateTrayMenu);
win.on('focus', updateTrayMenu);
win.on('hide', updateTrayMenu);
win.on('show', updateTrayMenu);
// Mac apps generally do not have menu bar icons
if (process.platform === 'linux') {
initLinux();
}
if (process.platform === 'win32') {
initWin32();
}
}
function hasTray() {
return !!tray;
}
module.exports.init = init;
module.exports.hasTray = hasTray;