| Summary: | Selection cannot be set to only contain a non-spacing mark | ||||||
|---|---|---|---|---|---|---|---|
| Product: | WebKit | Reporter: | Santhosh Thottingal <santhosh.thottingal> | ||||
| Component: | HTML Editing | Assignee: | Nobody <webkit-unassigned> | ||||
| Status: | NEW --- | ||||||
| Severity: | Normal | CC: | ap, junu.pv+public, rniwa | ||||
| Priority: | P2 | ||||||
| Version: | 528+ (Nightly build) | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| URL: | http://thottingal.in/bugs/js/selectionstart.html | ||||||
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As part of our Mediawiki extension Narayam[1], we have to use selectionStart for its efficient working. Currently no support for webkit browsers as of this bug. Alse see the bug report 30130 at bugzilla of Wikemedia projects[2]. We have a workaround but that is very inefficient. [1] http://www.mediawiki.org/wiki/Extension:Narayam [2] https://bugzilla.wikimedia.org/show_bug.cgi?id=30130 The bug title is incorrect. It's not that selectionStart returns a wrong value. Selection range is actually set to (2, 2), because (1, 2) is not a meaningful selection from user point of view. We have other bugs asking not to validate selection that was set programmatically. See bug 15256 and related ones. |
Created attachment 104626 [details] Sample HTML showing wrong selectionStart Open the attached html in the browser and see the alert. The input field has a two character cluster with a combining character MALAYALAM VIRAMA ഷ + ് => ഷ് When we try to select at position range (1,2), Following are the results - Chrome: FAILS by returning 2,2 - returns the position after the cluster. - Firefox: OK - returns 1,2 - Konqueror: OK - returns 1,2 - IE: (not supported)