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mirror of https://github.com/laurent22/joplin.git synced 2024-11-30 08:26:59 +02:00
joplin/packages/app-desktop/ElectronAppWrapper.ts

385 lines
11 KiB
TypeScript

import Logger from '@joplin/lib/Logger';
import { PluginMessage } from './services/plugins/PluginRunner';
import shim from '@joplin/lib/shim';
import { isCallbackUrl } from '@joplin/lib/callbackUrlUtils';
const { BrowserWindow, Tray, screen } = require('electron');
const url = require('url');
const path = require('path');
const { dirname } = require('@joplin/lib/path-utils');
const fs = require('fs-extra');
const { ipcMain } = require('electron');
interface RendererProcessQuitReply {
canClose: boolean;
}
interface PluginWindows {
[key: string]: any;
}
export default class ElectronAppWrapper {
private logger_: Logger = null;
private electronApp_: any;
private env_: string;
private isDebugMode_: boolean;
private profilePath_: string;
private win_: any = null;
private willQuitApp_: boolean = false;
private tray_: any = null;
private buildDir_: string = null;
private rendererProcessQuitReply_: RendererProcessQuitReply = null;
private pluginWindows_: PluginWindows = {};
private initialCallbackUrl_: string = null;
constructor(electronApp: any, env: string, profilePath: string, isDebugMode: boolean, initialCallbackUrl: string) {
this.electronApp_ = electronApp;
this.env_ = env;
this.isDebugMode_ = isDebugMode;
this.profilePath_ = profilePath;
this.initialCallbackUrl_ = initialCallbackUrl;
}
electronApp() {
return this.electronApp_;
}
setLogger(v: Logger) {
this.logger_ = v;
}
logger() {
return this.logger_;
}
window() {
return this.win_;
}
env() {
return this.env_;
}
initialCallbackUrl() {
return this.initialCallbackUrl_;
}
createWindow() {
// Set to true to view errors if the application does not start
const debugEarlyBugs = this.env_ === 'dev' || this.isDebugMode_;
const windowStateKeeper = require('electron-window-state');
const stateOptions: any = {
defaultWidth: Math.round(0.8 * screen.getPrimaryDisplay().workArea.width),
defaultHeight: Math.round(0.8 * screen.getPrimaryDisplay().workArea.height),
file: `window-state-${this.env_}.json`,
};
if (this.profilePath_) stateOptions.path = this.profilePath_;
// Load the previous state with fallback to defaults
const windowState = windowStateKeeper(stateOptions);
const windowOptions: any = {
x: windowState.x,
y: windowState.y,
width: windowState.width,
height: windowState.height,
minWidth: 100,
minHeight: 100,
backgroundColor: '#fff', // required to enable sub pixel rendering, can't be in css
webPreferences: {
nodeIntegration: true,
contextIsolation: false,
spellcheck: true,
enableRemoteModule: true,
},
webviewTag: true,
// We start with a hidden window, which is then made visible depending on the showTrayIcon setting
// https://github.com/laurent22/joplin/issues/2031
show: debugEarlyBugs,
};
// Linux icon workaround for bug https://github.com/electron-userland/electron-builder/issues/2098
// Fix: https://github.com/electron-userland/electron-builder/issues/2269
if (shim.isLinux()) windowOptions.icon = path.join(__dirname, '..', 'build/icons/128x128.png');
this.win_ = new BrowserWindow(windowOptions);
require('@electron/remote/main').enable(this.win_.webContents);
if (!screen.getDisplayMatching(this.win_.getBounds())) {
const { width: windowWidth, height: windowHeight } = this.win_.getBounds();
const { width: primaryDisplayWidth, height: primaryDisplayHeight } = screen.getPrimaryDisplay().workArea;
this.win_.setPosition(primaryDisplayWidth / 2 - windowWidth, primaryDisplayHeight / 2 - windowHeight);
}
this.win_.loadURL(url.format({
pathname: path.join(__dirname, 'index.html'),
protocol: 'file:',
slashes: true,
}));
// Note that on Windows, calling openDevTools() too early results in a white window with no error message.
// Waiting for one of the ready events might work but they might not be triggered if there's an error, so
// the easiest is to use a timeout. Keep in mind that if you get a white window on Windows it might be due
// to this line though.
if (debugEarlyBugs) {
setTimeout(() => {
try {
this.win_.webContents.openDevTools();
} catch (error) {
// This will throw an exception "Object has been destroyed" if the app is closed
// in less that the timeout interval. It can be ignored.
console.warn('Error opening dev tools', error);
}
}, 3000);
}
this.win_.on('close', (event: any) => {
// If it's on macOS, the app is completely closed only if the user chooses to close the app (willQuitApp_ will be true)
// otherwise the window is simply hidden, and will be re-open once the app is "activated" (which happens when the
// user clicks on the icon in the task bar).
// On Windows and Linux, the app is closed when the window is closed *except* if the tray icon is used. In which
// case the app must be explicitly closed with Ctrl+Q or by right-clicking on the tray icon and selecting "Exit".
let isGoingToExit = false;
if (process.platform === 'darwin') {
if (this.willQuitApp_) {
isGoingToExit = true;
} else {
event.preventDefault();
this.hide();
}
} else {
if (this.trayShown() && !this.willQuitApp_) {
event.preventDefault();
this.win_.hide();
} else {
isGoingToExit = true;
}
}
if (isGoingToExit) {
if (!this.rendererProcessQuitReply_) {
// If we haven't notified the renderer process yet, do it now
// so that it can tell us if we can really close the app or not.
// Search for "appClose" event for closing logic on renderer side.
event.preventDefault();
this.win_.webContents.send('appClose');
} else {
// If the renderer process has responded, check if we can close or not
if (this.rendererProcessQuitReply_.canClose) {
// Really quit the app
this.rendererProcessQuitReply_ = null;
this.win_ = null;
} else {
// Wait for renderer to finish task
event.preventDefault();
this.rendererProcessQuitReply_ = null;
}
}
}
});
ipcMain.on('asynchronous-message', (_event: any, message: string, args: any) => {
if (message === 'appCloseReply') {
// We got the response from the renderer process:
// save the response and try quit again.
this.rendererProcessQuitReply_ = args;
this.quit();
}
});
// This handler receives IPC messages from a plugin or from the main window,
// and forwards it to the main window or the plugin window.
ipcMain.on('pluginMessage', (_event: any, message: PluginMessage) => {
try {
if (message.target === 'mainWindow') {
this.win_.webContents.send('pluginMessage', message);
}
if (message.target === 'plugin') {
const win = this.pluginWindows_[message.pluginId];
if (!win) {
this.logger().error(`Trying to send IPC message to non-existing plugin window: ${message.pluginId}`);
return;
}
win.webContents.send('pluginMessage', message);
}
} catch (error) {
// An error might happen when the app is closing and a plugin
// sends a message. In which case, the above code would try to
// access a destroyed webview.
// https://github.com/laurent22/joplin/issues/4570
console.error('Could not process plugin message:', message);
console.error(error);
}
});
// Let us register listeners on the window, so we can update the state
// automatically (the listeners will be removed when the window is closed)
// and restore the maximized or full screen state
windowState.manage(this.win_);
// HACK: Ensure the window is hidden, as `windowState.manage` may make the window
// visible with isMaximized set to true in window-state-${this.env_}.json.
// https://github.com/laurent22/joplin/issues/2365
if (!windowOptions.show) {
this.win_.hide();
}
}
registerPluginWindow(pluginId: string, window: any) {
this.pluginWindows_[pluginId] = window;
}
async waitForElectronAppReady() {
if (this.electronApp().isReady()) return Promise.resolve();
return new Promise<void>((resolve) => {
const iid = setInterval(() => {
if (this.electronApp().isReady()) {
clearInterval(iid);
resolve(null);
}
}, 10);
});
}
quit() {
this.electronApp_.quit();
}
exit(errorCode = 0) {
this.electronApp_.exit(errorCode);
}
trayShown() {
return !!this.tray_;
}
// This method is used in macOS only to hide the whole app (and not just the main window)
// including the menu bar. This follows the macOS way of hiding an app.
hide() {
this.electronApp_.hide();
}
buildDir() {
if (this.buildDir_) return this.buildDir_;
let dir = `${__dirname}/build`;
if (!fs.pathExistsSync(dir)) {
dir = `${dirname(__dirname)}/build`;
if (!fs.pathExistsSync(dir)) throw new Error('Cannot find build dir');
}
this.buildDir_ = dir;
return dir;
}
trayIconFilename_() {
let output = '';
if (process.platform === 'darwin') {
output = 'macos-16x16Template.png'; // Electron Template Image format
} else {
output = '16x16.png';
}
if (this.env_ === 'dev') output = '16x16-dev.png';
return output;
}
// Note: this must be called only after the "ready" event of the app has been dispatched
createTray(contextMenu: any) {
try {
this.tray_ = new Tray(`${this.buildDir()}/icons/${this.trayIconFilename_()}`);
this.tray_.setToolTip(this.electronApp_.name);
this.tray_.setContextMenu(contextMenu);
this.tray_.on('click', () => {
this.window().show();
});
} catch (error) {
console.error('Cannot create tray', error);
}
}
destroyTray() {
if (!this.tray_) return;
this.tray_.destroy();
this.tray_ = null;
}
ensureSingleInstance() {
if (this.env_ === 'dev') return false;
const gotTheLock = this.electronApp_.requestSingleInstanceLock();
if (!gotTheLock) {
// Another instance is already running - exit
this.quit();
return true;
}
// Someone tried to open a second instance - focus our window instead
this.electronApp_.on('second-instance', (_e: any, argv: string[]) => {
const win = this.window();
if (!win) return;
if (win.isMinimized()) win.restore();
win.show();
win.focus();
if (process.platform !== 'darwin') {
const url = argv.find((arg) => isCallbackUrl(arg));
if (url) {
void this.openCallbackUrl(url);
}
}
});
return false;
}
async start() {
// Since we are doing other async things before creating the window, we might miss
// the "ready" event. So we use the function below to make sure that the app is ready.
await this.waitForElectronAppReady();
const alreadyRunning = this.ensureSingleInstance();
if (alreadyRunning) return;
this.createWindow();
this.electronApp_.on('before-quit', () => {
this.willQuitApp_ = true;
});
this.electronApp_.on('window-all-closed', () => {
this.quit();
});
this.electronApp_.on('activate', () => {
this.win_.show();
});
this.electronApp_.on('open-url', (event: any, url: string) => {
event.preventDefault();
void this.openCallbackUrl(url);
});
}
async openCallbackUrl(url: string) {
this.win_.webContents.send('asynchronous-message', 'openCallbackUrl', {
url: url,
});
}
}