7433 2006-02-23 14:56:54 -0800 REGRESSION (r12789): Second RTL text run on a line cannot be selected 2006-03-01 09:34:36 -0800 1 1 1 Unclassified WebKit Layout and Rendering 420+ Mac OS X 10.4 VERIFIED FIXED HasReduction, Regression P1 Normal --- 1 mitz webkit-unassigned harrison justin.garcia oldest_to_newest 33806 0 mitz 2006-02-23 14:56:54 -0800 Clicking or dragging to select the second run and subsequent runs of RTL text on a line fails. See the test case for an example where you cannot drag or double-click to select the rightmost two words of Hebrew text, since they are separated from the first two words by a double space (causing them to be in a different text run). Using nightly builds I tracked it down to somewhere between r12786 and r12791, and r12789 looks like the most likely candidate to be the cause. 33807 1 6687 mitz 2006-02-23 14:57:40 -0800 Created attachment 6687 Test case 33864 2 mitz 2006-02-24 07:48:50 -0800 This bug is a result of Position::inRenderedText()'s assumption that RenderText's inline boxes are ordered by their start offset. This assumption is false in many bidi contexts. The same logic is used in at least two other places: Position::isRenderedCharacter() and RenderText::inlineBox(). 34064 3 6746 mitz 2006-02-26 12:10:37 -0800 Created attachment 6746 Fix the regression This fixes inRenderedText() (which is responsible for this bug) and isRenderedCharacter(), but not other places where logical ordering of the text boxes is wrongly assumed. Those seem to be in editing code and require separate bugs and test cases. 34075 4 6746 darin 2006-02-26 15:40:20 -0800 Comment on attachment 6746 Fix the regression These fixes seem to leave in an optimization for renderers that don't contain reversed text. But couldn't we just remove the optimization entirely? 34079 5 harrison 2006-02-26 17:16:12 -0800 I would think so. Before my patch, Position::inRenderedContent had this optimization but VisiblePosition::isCandidate() did not. 34136 6 6746 darin 2006-02-27 08:20:53 -0800 Comment on attachment 6746 Fix the regression Lets get this fix landed -- we can ponder whether to remove the regression altogether later. r=me 34215 7 6746 darin 2006-02-27 10:58:28 -0800 Comment on attachment 6746 Fix the regression I meant to say "we can ponder whether to remove the *optimization* altogether later". 34649 8 mitz 2006-03-01 09:34:36 -0800 Verified in r13060 nightly 6687 2006-02-23 14:57:40 -0800 2006-02-23 14:57:40 -0800 Test case RTL selection regression.html text/html 380 mitz /v8APABoAHQAbQBsAD4ACgA8AGgAZQBhAGQAPgAKADwAdABpAHQAbABlAD4AUgBUAEwAIABzAGUA bABlAGMAdABpAG8AbgAgAHAAcgBvAGIAbABlAG0APAAvAHQAaQB0AGwAZQA+AAoAPAAvAGgAZQBh AGQAPgAKADwAYgBvAGQAeQA+AAoAPABwAD4ACgBUAHIAeQAgAHMAZQBsAGUAYwB0AGkAbgBnACAA ZQB2AGUAcgB5AHQAaABpAG4AZwAgAG8AbgAgAHQAaABlACAAbgBlAHgAdAAgAGwAaQBuAGUAIABi 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