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tt-rss/lib/dojo/fx.js

407 lines
11 KiB
JavaScript

/*
Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dojo.fx"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.fx"] = true;
dojo.provide("dojo.fx");
dojo.require("dojo.fx.Toggler");
/*=====
dojo.fx = {
// summary: Effects library on top of Base animations
};
=====*/
(function(){
var d = dojo,
_baseObj = {
_fire: function(evt, args){
if(this[evt]){
this[evt].apply(this, args||[]);
}
return this;
}
};
var _chain = function(animations){
this._index = -1;
this._animations = animations||[];
this._current = this._onAnimateCtx = this._onEndCtx = null;
this.duration = 0;
d.forEach(this._animations, function(a){
this.duration += a.duration;
if(a.delay){ this.duration += a.delay; }
}, this);
};
d.extend(_chain, {
_onAnimate: function(){
this._fire("onAnimate", arguments);
},
_onEnd: function(){
d.disconnect(this._onAnimateCtx);
d.disconnect(this._onEndCtx);
this._onAnimateCtx = this._onEndCtx = null;
if(this._index + 1 == this._animations.length){
this._fire("onEnd");
}else{
// switch animations
this._current = this._animations[++this._index];
this._onAnimateCtx = d.connect(this._current, "onAnimate", this, "_onAnimate");
this._onEndCtx = d.connect(this._current, "onEnd", this, "_onEnd");
this._current.play(0, true);
}
},
play: function(/*int?*/ delay, /*Boolean?*/ gotoStart){
if(!this._current){ this._current = this._animations[this._index = 0]; }
if(!gotoStart && this._current.status() == "playing"){ return this; }
var beforeBegin = d.connect(this._current, "beforeBegin", this, function(){
this._fire("beforeBegin");
}),
onBegin = d.connect(this._current, "onBegin", this, function(arg){
this._fire("onBegin", arguments);
}),
onPlay = d.connect(this._current, "onPlay", this, function(arg){
this._fire("onPlay", arguments);
d.disconnect(beforeBegin);
d.disconnect(onBegin);
d.disconnect(onPlay);
});
if(this._onAnimateCtx){
d.disconnect(this._onAnimateCtx);
}
this._onAnimateCtx = d.connect(this._current, "onAnimate", this, "_onAnimate");
if(this._onEndCtx){
d.disconnect(this._onEndCtx);
}
this._onEndCtx = d.connect(this._current, "onEnd", this, "_onEnd");
this._current.play.apply(this._current, arguments);
return this;
},
pause: function(){
if(this._current){
var e = d.connect(this._current, "onPause", this, function(arg){
this._fire("onPause", arguments);
d.disconnect(e);
});
this._current.pause();
}
return this;
},
gotoPercent: function(/*Decimal*/percent, /*Boolean?*/ andPlay){
this.pause();
var offset = this.duration * percent;
this._current = null;
d.some(this._animations, function(a){
if(a.duration <= offset){
this._current = a;
return true;
}
offset -= a.duration;
return false;
});
if(this._current){
this._current.gotoPercent(offset / this._current.duration, andPlay);
}
return this;
},
stop: function(/*boolean?*/ gotoEnd){
if(this._current){
if(gotoEnd){
for(; this._index + 1 < this._animations.length; ++this._index){
this._animations[this._index].stop(true);
}
this._current = this._animations[this._index];
}
var e = d.connect(this._current, "onStop", this, function(arg){
this._fire("onStop", arguments);
d.disconnect(e);
});
this._current.stop();
}
return this;
},
status: function(){
return this._current ? this._current.status() : "stopped";
},
destroy: function(){
if(this._onAnimateCtx){ d.disconnect(this._onAnimateCtx); }
if(this._onEndCtx){ d.disconnect(this._onEndCtx); }
}
});
d.extend(_chain, _baseObj);
dojo.fx.chain = function(/*dojo.Animation[]*/ animations){
// summary:
// Chain a list of `dojo.Animation`s to run in sequence
//
// description:
// Return a `dojo.Animation` which will play all passed
// `dojo.Animation` instances in sequence, firing its own
// synthesized events simulating a single animation. (eg:
// onEnd of this animation means the end of the chain,
// not the individual animations within)
//
// example:
// Once `node` is faded out, fade in `otherNode`
// | dojo.fx.chain([
// | dojo.fadeIn({ node:node }),
// | dojo.fadeOut({ node:otherNode })
// | ]).play();
//
return new _chain(animations) // dojo.Animation
};
var _combine = function(animations){
this._animations = animations||[];
this._connects = [];
this._finished = 0;
this.duration = 0;
d.forEach(animations, function(a){
var duration = a.duration;
if(a.delay){ duration += a.delay; }
if(this.duration < duration){ this.duration = duration; }
this._connects.push(d.connect(a, "onEnd", this, "_onEnd"));
}, this);
this._pseudoAnimation = new d.Animation({curve: [0, 1], duration: this.duration});
var self = this;
d.forEach(["beforeBegin", "onBegin", "onPlay", "onAnimate", "onPause", "onStop", "onEnd"],
function(evt){
self._connects.push(d.connect(self._pseudoAnimation, evt,
function(){ self._fire(evt, arguments); }
));
}
);
};
d.extend(_combine, {
_doAction: function(action, args){
d.forEach(this._animations, function(a){
a[action].apply(a, args);
});
return this;
},
_onEnd: function(){
if(++this._finished > this._animations.length){
this._fire("onEnd");
}
},
_call: function(action, args){
var t = this._pseudoAnimation;
t[action].apply(t, args);
},
play: function(/*int?*/ delay, /*Boolean?*/ gotoStart){
this._finished = 0;
this._doAction("play", arguments);
this._call("play", arguments);
return this;
},
pause: function(){
this._doAction("pause", arguments);
this._call("pause", arguments);
return this;
},
gotoPercent: function(/*Decimal*/percent, /*Boolean?*/ andPlay){
var ms = this.duration * percent;
d.forEach(this._animations, function(a){
a.gotoPercent(a.duration < ms ? 1 : (ms / a.duration), andPlay);
});
this._call("gotoPercent", arguments);
return this;
},
stop: function(/*boolean?*/ gotoEnd){
this._doAction("stop", arguments);
this._call("stop", arguments);
return this;
},
status: function(){
return this._pseudoAnimation.status();
},
destroy: function(){
d.forEach(this._connects, dojo.disconnect);
}
});
d.extend(_combine, _baseObj);
dojo.fx.combine = function(/*dojo.Animation[]*/ animations){
// summary:
// Combine a list of `dojo.Animation`s to run in parallel
//
// description:
// Combine an array of `dojo.Animation`s to run in parallel,
// providing a new `dojo.Animation` instance encompasing each
// animation, firing standard animation events.
//
// example:
// Fade out `node` while fading in `otherNode` simultaneously
// | dojo.fx.combine([
// | dojo.fadeIn({ node:node }),
// | dojo.fadeOut({ node:otherNode })
// | ]).play();
//
// example:
// When the longest animation ends, execute a function:
// | var anim = dojo.fx.combine([
// | dojo.fadeIn({ node: n, duration:700 }),
// | dojo.fadeOut({ node: otherNode, duration: 300 })
// | ]);
// | dojo.connect(anim, "onEnd", function(){
// | // overall animation is done.
// | });
// | anim.play(); // play the animation
//
return new _combine(animations); // dojo.Animation
};
dojo.fx.wipeIn = function(/*Object*/ args){
// summary:
// Expand a node to it's natural height.
//
// description:
// Returns an animation that will expand the
// node defined in 'args' object from it's current height to
// it's natural height (with no scrollbar).
// Node must have no margin/border/padding.
//
// args: Object
// A hash-map of standard `dojo.Animation` constructor properties
// (such as easing: node: duration: and so on)
//
// example:
// | dojo.fx.wipeIn({
// | node:"someId"
// | }).play()
var node = args.node = d.byId(args.node), s = node.style, o;
var anim = d.animateProperty(d.mixin({
properties: {
height: {
// wrapped in functions so we wait till the last second to query (in case value has changed)
start: function(){
// start at current [computed] height, but use 1px rather than 0
// because 0 causes IE to display the whole panel
o = s.overflow;
s.overflow = "hidden";
if(s.visibility == "hidden" || s.display == "none"){
s.height = "1px";
s.display = "";
s.visibility = "";
return 1;
}else{
var height = d.style(node, "height");
return Math.max(height, 1);
}
},
end: function(){
return node.scrollHeight;
}
}
}
}, args));
d.connect(anim, "onEnd", function(){
s.height = "auto";
s.overflow = o;
});
return anim; // dojo.Animation
};
dojo.fx.wipeOut = function(/*Object*/ args){
// summary:
// Shrink a node to nothing and hide it.
//
// description:
// Returns an animation that will shrink node defined in "args"
// from it's current height to 1px, and then hide it.
//
// args: Object
// A hash-map of standard `dojo.Animation` constructor properties
// (such as easing: node: duration: and so on)
//
// example:
// | dojo.fx.wipeOut({ node:"someId" }).play()
var node = args.node = d.byId(args.node), s = node.style, o;
var anim = d.animateProperty(d.mixin({
properties: {
height: {
end: 1 // 0 causes IE to display the whole panel
}
}
}, args));
d.connect(anim, "beforeBegin", function(){
o = s.overflow;
s.overflow = "hidden";
s.display = "";
});
d.connect(anim, "onEnd", function(){
s.overflow = o;
s.height = "auto";
s.display = "none";
});
return anim; // dojo.Animation
};
dojo.fx.slideTo = function(/*Object*/ args){
// summary:
// Slide a node to a new top/left position
//
// description:
// Returns an animation that will slide "node"
// defined in args Object from its current position to
// the position defined by (args.left, args.top).
//
// args: Object
// A hash-map of standard `dojo.Animation` constructor properties
// (such as easing: node: duration: and so on). Special args members
// are `top` and `left`, which indicate the new position to slide to.
//
// example:
// | dojo.fx.slideTo({ node: node, left:"40", top:"50", units:"px" }).play()
var node = args.node = d.byId(args.node),
top = null, left = null;
var init = (function(n){
return function(){
var cs = d.getComputedStyle(n);
var pos = cs.position;
top = (pos == 'absolute' ? n.offsetTop : parseInt(cs.top) || 0);
left = (pos == 'absolute' ? n.offsetLeft : parseInt(cs.left) || 0);
if(pos != 'absolute' && pos != 'relative'){
var ret = d.position(n, true);
top = ret.y;
left = ret.x;
n.style.position="absolute";
n.style.top=top+"px";
n.style.left=left+"px";
}
};
})(node);
init();
var anim = d.animateProperty(d.mixin({
properties: {
top: args.top || 0,
left: args.left || 0
}
}, args));
d.connect(anim, "beforeBegin", anim, init);
return anim; // dojo.Animation
};
})();
}