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[Lightbox] Use a fade effect to smooth the transition

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Add show()/hide() methods to Lightbox, which (optionally) fade the
lightbox. Change all lightboxes to fade in smoothly.

https://bugzilla.gnome.org/show_bug.cgi?id=602466
This commit is contained in:
Florian Müllner
2010-03-17 15:36:57 +01:00
parent 88be8e87ac
commit 528930d0a9
4 changed files with 97 additions and 33 deletions
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64
js/ui/lightbox.js
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@ -5,12 +5,17 @@ const Lang = imports.lang;
const Meta = imports.gi.Meta;
const St = imports.gi.St;
const Params = imports.misc.params;
const Tweener = imports.ui.tweener;
/**
* Lightbox:
* @container: parent Clutter.Container
* @inhibitEvents: whether to inhibit events for @container
* @width: (optional) shade actor width
* @height: (optional) shade actor height
* @params: (optional) additional parameters:
* - inhibitEvents: whether to inhibit events for @container
* - width: shade actor width
* - height: shade actor height
* - fadeTime: seconds used to fade in/out
*
* Lightbox creates a dark translucent "shade" actor to hide the
* contents of @container, and allows you to specify particular actors
@ -24,29 +29,37 @@ const St = imports.gi.St;
*
* By default, the shade window will have the height and width of
* @container and will track any changes in its size. You can override
* this by passing an explicit width and height
* this by passing an explicit width and height in @params.
*/
function Lightbox(container, inhibitEvents, width, height) {
this._init(container, inhibitEvents, width, height);
function Lightbox(container, params) {
this._init(container, params);
}
Lightbox.prototype = {
_init : function(container, inhibitEvents, width, height) {
_init : function(container, params) {
params = Params.parse(params, { inhibitEvents: false,
width: null,
height: null,
fadeTime: null
});
this._container = container;
this._children = container.get_children();
this._fadeTime = params.fadeTime;
this.actor = new St.Bin({ x: 0,
y: 0,
style_class: 'lightbox',
reactive: inhibitEvents });
reactive: params.inhibitEvents });
container.add_actor(this.actor);
this.actor.raise_top();
this.actor.hide();
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
if (width && height) {
this.actor.width = width;
this.actor.height = height;
if (params.width && params.height) {
this.actor.width = params.width;
this.actor.height = params.height;
this._allocationChangedSignalId = 0;
} else {
this.actor.width = container.width;
@ -92,6 +105,35 @@ Lightbox.prototype = {
}
},
show: function() {
if (this._fadeTime) {
this.actor.opacity = 0;
Tweener.addTween(this.actor,
{ opacity: 255,
time: this._fadeTime,
transition: 'easeOutQuad'
});
} else {
this.actor.opacity = 255;
}
this.actor.show();
},
hide: function() {
if (this._fadeTime) {
Tweener.addTween(this.actor,
{ opacity: 0,
time: this._fadeTime,
transition: 'easeOutQuad',
onComplete: Lang.bind(this, function() {
this.actor.hide();
})
});
} else {
this.actor.hide();
}
},
_actorRemoved : function(container, child) {
let index = this._children.indexOf(child);
if (index != -1) // paranoia