Get EXIF tags to render process

This commit is contained in:
Timothy Warren 2018-04-17 15:55:19 -04:00
parent eb536063db
commit 1243bd3f5e
4 changed files with 116 additions and 109 deletions

67
src/electron/app.js Normal file
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@ -0,0 +1,67 @@
const {app, BrowserWindow} = require('electron');
const log = require('electron-log');
const path = require('path');
const url = require('url');
log.transports.file.level = false;
log.transports.console.level = 'info';
// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow;
const createWindow = () => {
// Create the browser window.
mainWindow = new BrowserWindow({
webPreferences: {
contextIsolation: true,
nodeIntegration: false,
},
});
// load the index.html of the app.
const startUrl = process.env.ELECTRON_START_URL || url.format({
pathname: path.join(__dirname, '/../../build/index.html'),
protocol: 'file:',
slashes: true,
});
mainWindow.loadURL(startUrl);
// Open the DevTools.
mainWindow.webContents.openDevTools({
mode: 'bottom',
});
// Emitted when the window is closed.
mainWindow.on('closed', () => {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null;
});
};
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);
app.on('browser-window-created', () => {
log.info('New browser window created');
});
// Quit when all windows are closed.
app.on('window-all-closed', () => {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.quit();
}
});
app.on('activate', () => {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (mainWindow === null) {
createWindow();
}
});

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const {ExifTool} = require('exiftool-vendored');
const exiftool = new ExifTool();
/**
* Get the EXIF data from the specified image path
*
* @param {string} imgPath
* @return {Promise<Tags>}
*/
function getExifTags (imgPath) {
return exiftool.read(imgPath);
}
module.exports = {
getExifTags,
};

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@ -1,89 +1,8 @@
const {app, BrowserWindow} = require('electron');
const log = require('electron-log');
log.transports.file.level = false;
log.transports.console.level = 'info';
const path = require('path');
const url = require('url');
// eslint-disable-next-line
const WebSocket = require('ws');
// eslint-disable-next-line // eslint-disable-next-line
global.eval = () => {}; global.eval = () => {};
// Keep a global reference of the window object, if you don't, the window will // Do app initialization and event handling
// be closed automatically when the JavaScript object is garbage collected. require('./app');
let mainWindow;
const createWindow = () => { // Initialize websockets
// Create the browser window. require('./websocket-events');
mainWindow = new BrowserWindow({
webPreferences: {
contextIsolation: true,
nodeIntegration: false,
},
});
// load the index.html of the app.
const startUrl = process.env.ELECTRON_START_URL || url.format({
pathname: path.join(__dirname, '/../../build/index.html'),
protocol: 'file:',
slashes: true,
});
mainWindow.loadURL(startUrl);
// Open the DevTools.
mainWindow.webContents.openDevTools({
mode: 'bottom',
});
// Emitted when the window is closed.
mainWindow.on('closed', () => {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null;
});
};
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);
app.on('browser-window-created', () => {
log.info('New browser window created');
});
// Quit when all windows are closed.
app.on('window-all-closed', () => {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.quit();
}
});
app.on('activate', () => {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (mainWindow === null) {
createWindow();
}
});
const wss = new WebSocket.Server({
perMessageDeflate: false,
port: 65432,
});
wss.broadcast = (data) => {
wss.clients.forEach(client => {
if (client.readyState === WebSocket.OPEN) {
client.send(data);
}
});
};
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
require('./websocket-events')(wss);

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@ -1,33 +1,38 @@
const {getExifTags} = require('./exif-helpers');
/** /**
* Websocket event handlers * Websocket event handlers
*/ */
const {ExifTool} = require('exiftool-vendored');
const {JSONMessage} = require('../helpers/web-socket'); const {JSONMessage} = require('../helpers/web-socket');
// eslint-disable-next-line
const WebSocket = require('ws');
const exiftool = new ExifTool(); const wss = new WebSocket.Server({
perMessageDeflate: false,
port: 65432,
});
module.exports = (wss) => { wss.broadcast = (data) => {
wss.on('connection', ws => { wss.clients.forEach(client => {
ws.send(JSONMessage('server-log', 'Connected to client!')); if (client.readyState === WebSocket.OPEN) {
ws.on('message', (...args) => { client.send(data);
const [type, message] = JSON.parse(args); }
switch (type) {
case 'dropped-files':
const filemap = message.map(async file => {
const tags = await getExifTags(file);
// console.info('Parsed tags', JSON.stringify(tags));
return JSON.parse(JSON.stringify(tags));
});
wss.broadcast(JSONMessage('parsed-exif-tags', filemap));
break;
default:
return ws.send(JSONMessage('server-log', [type, message]));
}
});
}); });
}; };
async function getExifTags (imgPath) { wss.on('connection', ws => {
await exiftool.read(imgPath); ws.send(JSONMessage('server-log', 'Connected to client!'));
} ws.on('message', async (...args) => {
const [type, message] = JSON.parse(args);
switch (type) {
case 'dropped-files':
const filemap = await Promise.all(
message.map(file => getExifTags(file))
);
wss.broadcast(JSONMessage('parsed-exif-tags', await filemap));
break;
default:
return ws.send(JSONMessage('server-log', [type, message]));
}
});
});