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Refine more about desktop capturer API.

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* Simplify the coffeescript code.
* Add more options in desktopCapturer.startUpdating.
This commit is contained in:
Haojian Wu 2015-10-05 11:32:12 +08:00
parent 1e69ef79de
commit 36c0ad7fda
8 changed files with 104 additions and 84 deletions
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26
atom/browser/lib/desktop-capturer.coffee
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@ -1,10 +1,8 @@
ipc = require 'ipc'
BrowserWindow = require 'browser-window'
EventEmitter = require('events').EventEmitter
# The browser module manages all desktop-capturer moduels in renderer process.
desktopCapturer = process.atomBinding('desktop_capturer').desktopCapturer
desktopCapturer.__proto__ = EventEmitter.prototype
getWebContentsFromId = (id) ->
windows = BrowserWindow.getAllWindows()
@ -15,28 +13,26 @@ webContentsIds = new Set
stopDesktopCapture = (id) ->
webContentsIds.delete id
# Stop updating if no renderer process listens the desktop capturer.
if webContentsIds.size is 0
desktopCapturer.stopUpdating()
ipc.on 'ATOM_BROWSER_DESKTOP_CAPTURER_REQUIRED', (event) ->
id = event.sender.getId()
# Remove the tracked webContents when it is destroyed.
getWebContentsFromId(id).on 'destroyed', ()->
stopDesktopCapture id
event.returnValue = 'done'
# Handle `desktopCapturer.startUpdating` API.
ipc.on 'ATOM_BROWSER_DESKTOP_CAPTURER_START_UPDATING', (event, args) ->
id = event.sender.getId()
if not webContentsIds.has id
# Stop sending desktop capturer events to the destroyed webContents.
event.sender.on 'destroyed', ()->
stopDesktopCapture id
# Start updating the desktopCapturer if it doesn't.
if webContentsIds.size is 0
desktopCapturer.startUpdating args
webContentsIds.add id
desktopCapturer.startUpdating args
# Handle `desktopCapturer.stopUpdating` API.
ipc.on 'ATOM_BROWSER_DESKTOP_CAPTURER_STOP_UPDATING', (event) ->
stopDesktopCapture event.sender.getId()
for event_name in ['source-added', 'source-removed', 'source-name-changed', "source-thumbnail-changed"]
do (event_name) ->
desktopCapturer.on event_name, (event, source) ->
webContentsIds.forEach (id) ->
getWebContentsFromId(id).send event_name, { id: source.id, name: source.name, dataUrl: source.thumbnail.toDataUrl() }
desktopCapturer.emit = (event_name, event, desktopId, name, thumbnail) ->
webContentsIds.forEach (id) ->
getWebContentsFromId(id).send 'ATOM_RENDERER_DESKTOP_CAPTURER', event_name, desktopId, name, thumbnail?.toDataUrl()