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a11y: using generic accessible at slider

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Needed in order to fill the AtkValue implementation using
signal callbacks (ala ShellGenericContainer).

https://bugzilla.gnome.org/show_bug.cgi?id=648623
This commit is contained in:
Alejandro Piñeiro 2013-08-22 23:15:35 +02:00
parent 5c04840312
commit 84d8d4f622
1 changed files with 35 additions and 0 deletions
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35
js/ui/slider.js
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@ -29,6 +29,17 @@ const Slider = new Lang.Class({
this._releaseId = this._motionId = 0;
this._dragging = false;
this._customAccessible = St.GenericAccessible.new_for_actor(this.actor);
this.actor.set_accessible(this._customAccessible);
this._customAccessible.connect('get-current-value', Lang.bind(this, this._getCurrentValue));
this._customAccessible.connect('get-minimum-value', Lang.bind(this, this._getMinimumValue));
this._customAccessible.connect('get-maximum-value', Lang.bind(this, this._getMaximumValue));
this._customAccessible.connect('get-minimum-increment', Lang.bind(this, this._getMinimumIncrement));
this._customAccessible.connect('set-current-value', Lang.bind(this, this._setCurrentValue));
this.connect('value-changed', Lang.bind(this, this._valueChanged));
},
setValue: function(value) {
@ -204,6 +215,30 @@ const Slider = new Lang.Class({
this.emit('value-changed', this._value);
},
_getCurrentValue: function (actor) {
return this._value;
},
_getMinimumValue: function (actor) {
return 0;
},
_getMaximumValue: function (actor) {
return 1;
},
_getMinimumIncrement: function (actor) {
return 0.1;
},
_setCurrentValue: function (actor, value) {
this._value = value;
},
_valueChanged: function (slider, value, property) {
this._customAccessible.notify ("accessible-value");
},
get value() {
return this._value;
}