Give presenter assistance when sharing desktop from within Chrome

[GoogleCodeExporter]

Currently, when a presenter attempts to share their desktop on Google Chrome, 
Chrome will initially block the Java applet.

Unlike FireFox -- which adds a visible line below the address bar prompting the 
user for permission -- Chrome is very subtle and easy to miss.  See attached 
chrome.png

To give the presenter feedback that they must enable Java to run in the page 
before the desktop sharing applet will launch, modify the Desktop Sharing 
Preview to

  1.  Detect if the desktop sharing applet has started
  2.  Give feedback to the user (via text and image) that Chrome may need permissions to run

See attached image desktop-share-chrome-hint.png

Original issue reported on code.google.com by ffdixon@gmail.com on 29 Jan 2015 at 12:35

Attachments:

• chrome.png
• desktop-share-chrome-hint.png

[GoogleCodeExporter]

Fixed in

  https://github.com/bigbluebutton/bigbluebutton/pull/497

This fix will be in the next update to BigBlueButton 0.9.0-beta.

Original comment by ffdixon@gmail.com on 29 Jan 2015 at 12:36

• Changed state: Fixed

[GoogleCodeExporter]

Original comment by ffdixon@gmail.com on 29 Jan 2015 at 12:38

• Changed title: Give presenter assistance when sharing desktop from within Chrome