Review Request: Fix Konqueror's MMB click to close tab option

[Dawit Alemayehu]

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http://git.reviewboard.kde.org/r/106615/
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Review request for KDE Base Apps and David Faure.


Description
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The attached patch fixes the bug where clicking on a tab with the MMB while the "Middle-click on a tab to close it" option is checked results in the tab gaining the focus first before being closed instead of being closed in the background. That results in the active tab being changed when a user activates the aforementioned option and clicks on a background tab with the MMB. 

For the record the reason why this really happens is KTabBar's treatment of the MMB clicks when the setMovable is set to TRUE. In addition to emitting a mouseMiddleClick signal which Konqueror currently relies on to close the tab, it also eats the MMB click event and generates a new LMB click event in its place. Apparently that was done for compatibility sake so that the user can move tabs using either the LMB or MMB.  

Anyhow, this patch addresses the problem by installing an event filter to intercept the mouse events from the tabbar and handle MMB clicks on its own when the aforementioned option is checked so that we do not receive unnecessary bogus events.


This addresses bug 264058.
    http://bugs.kde.org/show_bug.cgi?id=264058


Diffs
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  konqueror/src/konqtabs.h 4b6f1f1 
  konqueror/src/konqtabs.cpp 611659f 

Diff: http://git.reviewboard.kde.org/r/106615/diff/


Testing
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Thanks,

Dawit Alemayehu

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