CODEWITHSUNDEEP
javascriptelectronwindows-10dom-events
manish kumar
manish kumar

Reputation: 4702

Capturing save and cancel event on window.open() in electron

I am saving a file locally in js like this

var win = window.open(appConfig.server_url + '/v1/discussion/files/download/chat' + '/' + params);

on browser this opens a new tab and downloads the files and closes the tab, but on electron this opens a file save dialog like shown below:

enter image description here

So I want to capture the save and cancel event in the js so that on clicking save user should get "download successful" message and on cancel nothing should happen.

Upvotes: 0

Views: 1434

Answers (1)

pergy
pergy

Reputation: 5531

You can register listener to session to catch 'will-download' event. In the callback you have access to the current DownloadItem and can do whatever you want with it.

Electron docs example: 

// In the main process.
const {BrowserWindow} = require('electron')
let win = new BrowserWindow()
win.webContents.session.on('will-download', (event, item, webContents) => {
  // Set the save path, making Electron not to prompt a save dialog.
  item.setSavePath('/tmp/save.pdf')

  item.on('updated', (event, state) => {
    if (state === 'interrupted') {
      console.log('Download is interrupted but can be resumed')
    } else if (state === 'progressing') {
      if (item.isPaused()) {
        console.log('Download is paused')
      } else {
        console.log(`Received bytes: ${item.getReceivedBytes()}`)
      }
    }
  })
  item.once('done', (event, state) => {
    if (state === 'completed') {
      console.log('Download successfully')
    } else {
      console.log(`Download failed: ${state}`)
    }
  })
})

I hope this helps!

Upvotes: 1

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