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Adds fn.promise as a mean to observe the completion of animations on a set of elements. Only queued animations are handled for now, non-queued animations support coming soon. Effects unit tests updated to test the feature (needs more testing though).

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This commit is contained in:
jaubourg 2011-04-07 06:00:52 +02:00
parent bb99899ca0
commit 4552d135f4
2 changed files with 67 additions and 19 deletions
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45
src/queue.js
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@ -28,7 +28,8 @@ jQuery.extend({
type = type || "fx";
var queue = jQuery.queue( elem, type ),
fn = queue.shift();
fn = queue.shift(),
defer;
// If the fx queue is dequeued, always remove the progress sentinel
if ( fn === "inprogress" ) {
@ -49,6 +50,17 @@ jQuery.extend({
if ( !queue.length ) {
jQuery.removeData( elem, type + "queue", true );
// Look if we have observers and resolve if needed
if (( defer = jQuery.data( elem, type + "defer", undefined, true ) )) {
// Give room for hard-coded callbacks to fire first
// and eventually add another animation on the element
setTimeout( function() {
if ( !jQuery.data( elem, type + "queue", undefined, true ) ) {
jQuery.removeData( elem, type + "defer", true );
defer.resolve();
}
}, 0 );
}
}
}
});
@ -93,6 +105,37 @@ jQuery.fn.extend({
clearQueue: function( type ) {
return this.queue( type || "fx", [] );
},
// Get a promise resolved when queues of a certain type
// are emptied (fx is the type by default)
promise: function( type, object ) {
if ( typeof type !== "string" ) {
object = type;
type = undefined;
}
type = type || "fx";
var defer = jQuery.Deferred(),
elements = this,
i = elements.length,
count = 1,
deferDataKey = type + "defer",
queueDataKey = type + "queue";
function resolve() {
if ( !( --count ) ) {
defer.resolveWith( elements, [ elements ] );
}
}
while( i-- ) {
if (( tmp = jQuery.data( elements[ i ], deferDataKey, undefined, true ) ||
jQuery.data( elements[ i ], queueDataKey, undefined, true ) &&
jQuery.data( elements[ i ], deferDataKey, jQuery._Deferred(), true ) )) {
count++;
tmp.done( resolve );
}
}
resolve();
return defer.promise();
}
});

41
test/unit/effects.js vendored
View file

@ -717,59 +717,64 @@ jQuery.each( {
var anim = { width: t_w, height: t_h, opacity: t_o };
elem.animate(anim, 50, function(){
elem.animate(anim, 50);
jQuery.when( elem ).done(function( elem ){
elem = elem[ 0 ];
if ( t_w == "show" )
equals( this.style.display, "block", "Showing, display should block: " + this.style.display);
equals( elem.style.display, "block", "Showing, display should block: " + elem.style.display);
if ( t_w == "hide"||t_w == "show" )
ok(f_w === "" ? this.style.width === f_w : this.style.width.indexOf(f_w) === 0, "Width must be reset to " + f_w + ": " + this.style.width);
ok(f_w === "" ? elem.style.width === f_w : elem.style.width.indexOf(f_w) === 0, "Width must be reset to " + f_w + ": " + elem.style.width);
if ( t_h == "hide"||t_h == "show" )
ok(f_h === "" ? this.style.height === f_h : this.style.height.indexOf(f_h) === 0, "Height must be reset to " + f_h + ": " + this.style.height);
ok(f_h === "" ? elem.style.height === f_h : elem.style.height.indexOf(f_h) === 0, "Height must be reset to " + f_h + ": " + elem.style.height);
var cur_o = jQuery.style(this, "opacity");
var cur_o = jQuery.style(elem, "opacity");
if ( t_o == "hide" || t_o == "show" )
equals(cur_o, f_o, "Opacity must be reset to " + f_o + ": " + cur_o);
if ( t_w == "hide" )
equals(this.style.display, "none", "Hiding, display should be none: " + this.style.display);
equals(elem.style.display, "none", "Hiding, display should be none: " + elem.style.display);
if ( t_o.constructor == Number ) {
equals(cur_o, t_o, "Final opacity should be " + t_o + ": " + cur_o);
ok(jQuery.css(this, "opacity") != "" || cur_o == t_o, "Opacity should be explicitly set to " + t_o + ", is instead: " + cur_o);
ok(jQuery.css(elem, "opacity") != "" || cur_o == t_o, "Opacity should be explicitly set to " + t_o + ", is instead: " + cur_o);
}
if ( t_w.constructor == Number ) {
equals(this.style.width, t_w + "px", "Final width should be " + t_w + ": " + this.style.width);
equals(elem.style.width, t_w + "px", "Final width should be " + t_w + ": " + elem.style.width);
var cur_w = jQuery.css(this,"width");
var cur_w = jQuery.css(elem,"width");
ok(this.style.width != "" || cur_w == t_w, "Width should be explicitly set to " + t_w + ", is instead: " + cur_w);
ok(elem.style.width != "" || cur_w == t_w, "Width should be explicitly set to " + t_w + ", is instead: " + cur_w);
}
if ( t_h.constructor == Number ) {
equals(this.style.height, t_h + "px", "Final height should be " + t_h + ": " + this.style.height);
equals(elem.style.height, t_h + "px", "Final height should be " + t_h + ": " + elem.style.height);
var cur_h = jQuery.css(this,"height");
var cur_h = jQuery.css(elem,"height");
ok(this.style.height != "" || cur_h == t_h, "Height should be explicitly set to " + t_h + ", is instead: " + cur_w);
ok(elem.style.height != "" || cur_h == t_h, "Height should be explicitly set to " + t_h + ", is instead: " + cur_w);
}
if ( t_h == "show" ) {
var old_h = jQuery.css(this, "height");
jQuery(this).append("<br/>Some more text<br/>and some more...");
var old_h = jQuery.css(elem, "height");
jQuery(elem).append("<br/>Some more text<br/>and some more...");
if ( /Auto/.test( fn ) ) {
notEqual(jQuery.css(this, "height"), old_h, "Make sure height is auto.");
notEqual(jQuery.css(elem, "height"), old_h, "Make sure height is auto.");
} else {
equals(jQuery.css(this, "height"), old_h, "Make sure height is not auto.");
equals(jQuery.css(elem, "height"), old_h, "Make sure height is not auto.");
}
}
// manually remove generated element
jQuery(this).remove();
jQuery(elem).remove();
start();
});