On 2013-08-28 12:22 PM, Jim Chen wrote:
Hi Xulei,
I think you can use
nsISelectionPrivate::addSelectionListener [1]. You can get
nsISelectionPrivate through QueryInterface on nsISelection,
which you can get from nsIEditor.
But note that you can only get the nsIEditor for plaintext controls,
that won't work for designMode/contentEditable.
Cheers,
Ehsan
Cheers,
Jim
[1]
http://mxr.mozilla.org/mozilla-central/source/content/base/public/nsISelectionPrivate.idl#52
On 8/28/13 5:24 AM, "Yuan Xulei(袁徐磊)" wrote:
Hi all,
I'm implementing b2g keyboard/IME api and encounter a problem
with the selection range observing.
We want to monitor the cursor position or selection range
changes
in current input element, which is a text input field or a
content
editable element receiving user's input. The cursor position
or the
selection range can be changed by
1) key events generated by virtual keyboard,
2) js code,
3) mouse events triggered by user.
Currently we listen a pile of events(mousedown, mouseup,
input...)
to check if the selection range has been changed. It is
inefficient
and error prone.
I wonder if there is a way to monitor the selection range
changes
from chrome js.
Could anyone give me a clue?
Thanks.
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