Enable to show a property on ibus panel icon

Enable to show a property on ibus panel icon

If an engine sets the value of icon-prop-key of IBusEngineDesc to
a property name of IBusProperty.key, the panel will show the engine
property in the icon with a delayed time.
This way can show both the engine icon and the engine mode in one icon.

Committed: 23c45b970b195008a54884a1a9d810e7f8b22c5c

[Peng, 2015-06-17 14:07:24]

https://codereview.appspot.com/248950043/diff/1/data/ibus.schemas.in
File data/ibus.schemas.in (right):

https://codereview.appspot.com/248950043/diff/1/data/ibus.schemas.in#newcode310
data/ibus.schemas.in:310: <owner>ibus</owner>
Seems the timeout is just for switching engine icon to a property icon. Is an
animation used really? If it is not about animation, probably rename it to
engine-icon-to-property-icon-timeout? or some better name?

[fujiwara, 2015-06-18 02:46:38]

https://codereview.appspot.com/248950043/diff/1/data/ibus.schemas.in
File data/ibus.schemas.in (right):

https://codereview.appspot.com/248950043/diff/1/data/ibus.schemas.in#newcode310
data/ibus.schemas.in:310: <owner>ibus</owner>
On 2015/06/17 14:07:24, Peng wrote:
> Seems the timeout is just for switching engine icon to a property icon. Is an
> animation used really? If it is not about animation, probably rename it to
> engine-icon-to-property-icon-timeout? or some better name?

Right, this patch has the only two pages of a engine icon and a property icon.
I considered it's also an animation.
Originally I created an animation patch:
https://fujiwara.fedorapeople.org/ibus/20130912/icon-animation.ogv
But now I prefer this current patch.
Probably I will rename it to 'property-icon-delay-time'.

[fujiwara, 2015-06-18 04:45:39]

https://codereview.appspot.com/248950043/diff/1/data/ibus.schemas.in
File data/ibus.schemas.in (right):

https://codereview.appspot.com/248950043/diff/1/data/ibus.schemas.in#newcode310
data/ibus.schemas.in:310: <owner>ibus</owner>
On 2015/06/17 14:07:24, Peng wrote:
> Seems the timeout is just for switching engine icon to a property icon. Is an
> animation used really? If it is not about animation, probably rename it to
> engine-icon-to-property-icon-timeout? or some better name?

Done.

[Peng, 2015-06-18 15:56:47]

lgtm

[fujiwara, 2015-06-19 04:57:49]

Committed patchset #2 (id:20001) manually as
23c45b970b195008a54884a1a9d810e7f8b22c5c (presubmit successful).