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ibusCandidatePopup: handle mouse scroll event on candidates

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When use mouse scroll button on input method candidates,
move the cursor up/down on candidates.

https://bugzilla.gnome.org/show_bug.cgi?id=776032
This commit is contained in:
Peng Wu 2016-12-12 16:02:32 +08:00 committed by Rui Matos
parent d200fb1d14
commit f9a03f212c
1 changed files with 22 additions and 0 deletions
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22
js/ui/ibusCandidatePopup.js
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@ -19,6 +19,7 @@ const CandidateArea = new Lang.Class({
_init: function() {
this.actor = new St.BoxLayout({ vertical: true,
reactive: true,
visible: false });
this._candidateBoxes = [];
for (let i = 0; i < MAX_CANDIDATES_PER_PAGE; ++i) {
@ -39,6 +40,19 @@ const CandidateArea = new Lang.Class({
}));
}
this.actor.connect('scroll-event', Lang.bind(this, function(actor, event) {
let direction = event.get_scroll_direction();
switch(direction) {
case Clutter.ScrollDirection.UP:
this.emit('cursor-up');
break;
case Clutter.ScrollDirection.DOWN:
this.emit('cursor-down');
break;
};
return Clutter.EVENT_PROPAGATE;
}));
this._buttonBox = new St.BoxLayout({ style_class: 'candidate-page-button-box' });
this._previousButton = new St.Button({ style_class: 'candidate-page-button candidate-page-button-previous button' });
@ -144,6 +158,14 @@ const CandidatePopup = new Lang.Class({
this._candidateArea.connect('next-page', Lang.bind(this, function() {
this._panelService.page_down();
}));
this._candidateArea.connect('cursor-up', Lang.bind(this, function() {
this._panelService.cursor_up();
}));
this._candidateArea.connect('cursor-down', Lang.bind(this, function() {
this._panelService.cursor_down();
}));
this._candidateArea.connect('candidate-clicked', Lang.bind(this, function(ca, index, button, state) {
this._panelService.candidate_clicked(index, button, state);
}));