254795 - [FIXr]When using createEvent for a link middle-click, the normal click event also seems to get fired to the link

Status: RESOLVED FIXED

(Core :: DOM: Events, defect, P2)

Description

[Martijn Wargers (dead)]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a3) Gecko/20040808 Firefox/0.9.1+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a3) Gecko/20040808 Firefox/0.9.1+

See upcoming testcase.
Clicking the button fires this function:
function openintab(sType,e) {
x.href='http://www.google.com';
   var ev = document.createEvent("MouseEvents");
   ev.initMouseEvent(sType, 0, 1, window, 1,0,0,0,0,0,0,0,0,1, x);
   x.dispatchEvent(ev);
}
And that's working nice.
But when you left click on the button, not only the middle click action seems to
be fired on the dummy link, but also the left click action (although it is not
visible in the event listener).
The result is that not only a new link has been opened in a new tab, but also
the current tab gets replaced by the link location (http://www.google.com).

Reproducible: Always
Steps to Reproduce:
1. See testcase
2. Click button: 'open Google in new tab'
3.

Actual Results:  
New tab appeared with 'http://www.google.com', but also this tab replaced with
'http://www.google.com'

Expected Results:  
Only a new should appear with 'http://www.google.com'.

Comment 1

[Martijn Wargers (dead)]

Attachment: Testcase

Comment 2

[Boris Zbarsky [:bzbarsky]]

Attachment: Fix

Comment 3

[Boris Zbarsky [:bzbarsky]]

Comment on attachment 155527 [details] [diff] [review]
Fix

The short story is that InitEvent() sets the message based on the even name
only.  That's not good enough in this case...

Comment 4

[Johnny Stenback (:jst)]

Comment on attachment 155527 [details] [diff] [review]
Fix

sr=jst

Comment 5

[Boris Zbarsky [:bzbarsky]]

Attachment: Updated to tip

Comment 6

[Boris Zbarsky [:bzbarsky]]

Fix checked in for 1.8a4