[whatwg] set input.value when input element has composition string
m_kato at ga2.so-net.ne.jp
Thu Mar 3 02:47:03 PST 2011
On 2011/03/02 15:30, Ryosuke Niwa wrote:
> On Tue, Mar 1, 2011 at 5:18 PM, Makoto Kato <m_kato at ga2.so-net.ne.jp
> <mailto:m_kato at ga2.so-net.ne.jp>> wrote:
> On Safari 5, even if textbox has IME composition string, text into
> textbox can be replaced by DOM/script. But other browser's
> behaviors are different, and this is no specification when textbox
> has composition string. Although IE, Chrome and Opera keep
> composition string after value is replaced by DOM, each behavior
> is different.
> This is the result for this test on each browsers. When textbox
> has IME composition string such as ABCDEFG, then script
> (textbox.value = "123";) is called, textbox becomes...
> 1. "123ABCDEFG" (ABCDEFG keeps composition state and caret is
> after G).
> 2. "123" (composition string is removed).
> 3. "ABCDEFG" (ABCDEFG keeps composition state and caret is after G).
> Which behavior is right? 1 is Opera 11, 2 is Safari 5, and 3 is
> Chrome 10 and IE9.
> You must have tested Chrome improperly. We currently have a bug in
> Chrome. To see the bug, open the attached test and type "nihao" with
> Chinese IME on Windows or Mac. Then press down array key. The text
> is replaced by henhao but "henha" is still marked and looks as if I'm
> compositing "henha" but if I continue to type "ma" still with IME,
> then I observe that "henhaomao" is shown inside the input element.
> Once this bug is fixed, Chrome's behavior should match that of Safari 5.
Do you think Safari's way (ex. 2) is right? I found some bugs on
Chrome (and IE and Opera) when I test this, but I am not interesting
It is confused that each Web browser is different behavior for this .
This is not good as interoperability. So I would like to decide the
right behavior/specification when textbox.value = 'x'; that it has
Also, some people says that it should not be canceled/removed even if
value is changed by DOM. Because composition string is un-committed string.
Niwa-san and folks, how do you think right design for this situation??
-- Makoto Kato
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