Bug 43020

Summary: IME Composition events are handled inconsistently in each port
Product: WebKit Reporter: Joone Hur <joone>
Component: HTML EditingAssignee: Nobody <webkit-unassigned>
Status: UNCONFIRMED    
Severity: Major CC: ap, daniel.danilatos, gyuyoung.kim, hbono
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Bug Depends on:    
Bug Blocks: 40518    
Attachments:
Description Flags
composition status table
none
Korean Hangul Composition Event Test (updated)
none
test case
none
Korean Hangul Composition Event Test2 (updated) none

Joone Hur
Reported 2010-07-26 22:09:45 PDT
All ports of WebKit handles composition & textEvent events in inconsistent ways. In addition, keyboard events are still dispatched to the DOM during a composition. According to W3C DOM Level 3 events, 1) A browser should fire compositionstart, compositionupdate, and compositionend event during a composition. 2) The textEvent event should be dispatched after a compositionend event if the composition has not been canceled. 3) While a composition session is active, keyboard events should not be dispatched to the DOM (i.e., the text composition system "swallows" the keyboard events), and only compositionupdate events may be dispatched to indicate the composition process. Therefore, it is necessary to fix the problems as follows: 1) IME Composition events should be handled consistently in all ports of WebKit. 2) Keyboard events should not be dispatched during a composition. 3) The textInput event should be dispatched after a compositionend event.
Attachments
composition status table (60.35 KB, image/png)
2010-07-26 22:16 PDT, Joone Hur 		no flags
Details
Korean Hangul Composition Event Test (updated) (58.22 KB, image/png)
2010-07-26 22:27 PDT, Joone Hur 		no flags
Details
test case (1.39 KB, text/html)
2010-07-26 22:52 PDT, Joone Hur 		no flags
Details
Korean Hangul Composition Event Test2 (updated) (61.13 KB, image/png)
2010-07-26 23:00 PDT, Joone Hur 		no flags
Details
Show Obsolete (2) View All Add attachment proposed patch, testcase, etc.
Joone Hur
Comment 1 2010-07-26 22:16:36 PDT
Created attachment 62642 [details] composition status table The attached png file shows the status of DOM events during a Hangul(Korean alphabet) composition.
Joone Hur
Comment 2 2010-07-26 22:27:58 PDT
Created attachment 62644 [details] Korean Hangul Composition Event Test (updated) The attached png file shows the status of DOM events during a Hangul(Korean alphabet) composition
Joone Hur
Comment 3 2010-07-26 22:52:46 PDT
Created attachment 62645 [details] test case This test case is brought from https://bugzilla.mozilla.org/show_bug.cgi?id=354358 and tweaked a bit.
Joone Hur
Comment 4 2010-07-26 23:00:20 PDT
Created attachment 62647 [details] Korean Hangul Composition Event Test2 (updated)
Note You need to log in before you can comment on or make changes to this bug.