Review Request: Do not emit KLineEdit::textEdited when a user scrolls through the popup completion list

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This review has been submitted with commit 8db60a2fe40fc00cbf2774afd3c74e8f6ea03c02 by Dawit Alemayehu.

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On June 3, 2011, 5:46 p.m., Dawit Alemayehu wrote:
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> http://git.reviewboard.kde.org/r/101498/
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> (Updated June 3, 2011, 5:46 p.m.)
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> Review request for kdelibs.
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> Summary
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> Currently it is impossible to scroll through the popup completion items in Konqueror's searchbar plugin. The problem stems from the fact that whenever a user scrolls through the popup completion list, not only does KLineEdit update its text, and as a result emit the textChanged signal, but it also emits the textEdited signal. This causes the searchbar plugin which relies on the textEdited signal to update the matching items from the search engine, to continually retrieve new matches everytime the user presses the arrow keys to scroll through the completion items in the popup completion box. This results in unpredictable behavior since the list is updated while the user is pressing the scrolling keys.
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> The attached patch stops KLineEdit from emitting textEdited during scrolling through the list of completion items.
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> This addresses bug 256954.
>     http://bugs.kde.org/show_bug.cgi?id=256954
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> Diffs
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>   kdeui/widgets/klineedit.cpp 0dd3690 
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> Diff: http://git.reviewboard.kde.org/r/101498/diff
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> Testing
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> Thanks,
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> Dawit
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