mailr/public/javascripts/effects2.js

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// Copyright (c) 2005 Thomas Fuchs (http://mir.aculo.us)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Effect2 = {}
/* ------------- transitions ------------- */
Effect2.Transitions = {}
Effect2.Transitions.linear = function(pos) {
return pos;
}
Effect2.Transitions.sinoidal = function(pos) {
return (-Math.cos(pos*Math.PI)/2) + 0.5;
}
Effect2.Transitions.reverse = function(pos) {
return 1-pos;
}
Effect2.Transitions.flicker = function(pos) {
return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random(0.25);
}
Effect2.Transitions.wobble = function(pos) {
return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
}
/* ------------- core effects ------------- */
Effect2.Base = function() {};
Effect2.Base.prototype = {
setOptions: function(options) {
this.options = {
transition: Effect2.Transitions.sinoidal,
duration: 1.0, // seconds
fps: 25.0, // max. 100fps
sync: false, // true for combining
from: 0.0,
to: 1.0
}.extend(options || {});
},
start: function(options) {
this.setOptions(options || {});
this.currentFrame = 0;
this.startOn = new Date().getTime();
this.finishOn = this.startOn + (this.options.duration*1000);
if(this.options.beforeStart) this.options.beforeStart(this);
if(!this.options.sync) this.loop();
},
loop: function() {
timePos = new Date().getTime();
if(timePos >= this.finishOn) {
this.render(this.options.to);
if(this.finish) this.finish();
if(this.options.afterFinish) this.options.afterFinish(this);
return;
}
pos = (timePos - this.startOn) / (this.finishOn - this.startOn);
frame = Math.round(pos * this.options.fps * this.options.duration);
if(frame > this.currentFrame) {
this.render(pos);
this.currentFrame = frame;
}
this.timeout = setTimeout(this.loop.bind(this), 10);
},
render: function(pos) {
if(this.options.transition) pos = this.options.transition(pos);
pos = pos * (this.options.to-this.options.from);
pos += this.options.from;
if(this.options.beforeUpdate) this.options.beforeUpdate(this);
if(this.update) this.update(pos);
if(this.options.afterUpdate) this.options.afterUpdate(this);
},
cancel: function() {
if(this.timeout) clearTimeout(this.timeout);
}
}
Effect2.Parallel = Class.create();
Effect2.Parallel.prototype = (new Effect2.Base()).extend({
initialize: function(effects) {
this.effects = effects || [];
this.start(arguments[1]);
},
update: function(position) {
for (var i = 0; i < this.effects.length; i++)
this.effects[i].render(position);
},
finish: function(position) {
for (var i = 0; i < this.effects.length; i++)
if(this.effects[i].finish) this.effects[i].finish(position);
}
});
Effect2.Opacity = Class.create();
Effect2.Opacity.prototype = (new Effect2.Base()).extend({
initialize: function() {
this.element = $(arguments[0] || document.rootElement);
options = {
from: 0.0,
to: 1.0
}.extend(arguments[1] || {});
this.start(options);
},
update: function(position) {
this.setOpacity(position);
},
setOpacity: function(opacity) {
opacity = (opacity == 1) ? 0.99999 : opacity;
this.element.style.opacity = opacity;
this.element.style.filter = "alpha(opacity:"+opacity*100+")";
}
});
Effect2.MoveBy = Class.create();
Effect2.MoveBy.prototype = (new Effect2.Base()).extend({
initialize: function(element, toTop, toLeft) {
this.element = $(element);
this.originalTop =
this.element.style.top ? parseFloat(this.element.style.top) : 0;
this.originalLeft =
this.element.style.left ? parseFloat(this.element.style.left) : 0;
this.toTop = toTop;
this.toLeft = toLeft;
if(this.element.style.position == "")
this.element.style.position = "relative";
this.start(arguments[3]);
},
update: function(position) {
topd = this.toTop * position + this.originalTop;
leftd = this.toLeft * position + this.originalLeft;
this.setPosition(topd, leftd);
},
setPosition: function(topd, leftd) {
this.element.style.top = topd + "px";
this.element.style.left = leftd + "px";
}
});
Effect2.Scale = Class.create();
Effect2.Scale.prototype = (new Effect2.Base()).extend({
initialize: function(element, percent) {
this.element = $(element)
options = {
scaleX: true,
scaleY: true,
scaleContent: true,
scaleFromCenter: false,
scaleMode: 'box', // 'box' or 'contents'
scaleFrom: 100.0
}.extend(arguments[2] || {});
this.originalTop = this.element.offsetTop;
this.originalLeft = this.element.offsetLeft;
if (this.element.style.fontSize=="") this.sizeEm = 1.0;
if (this.element.style.fontSize && this.element.style.fontSize.indexOf("em")>0)
this.sizeEm = parseFloat(this.element.style.fontSize);
this.factor = (percent/100.0) - (options.scaleFrom/100.0);
if(options.scaleMode=='box') {
this.originalHeight = this.element.clientHeight;
this.originalWidth = this.element.clientWidth;
} else
if(options.scaleMode=='contents') {
this.originalHeight = this.element.scrollHeight;
this.originalWidth = this.element.scrollWidth;
}
this.start(options);
},
update: function(position) {
currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
if(this.options.scaleContent && this.sizeEm)
this.element.style.fontSize = this.sizeEm*currentScale + "em";
this.setDimensions(
this.originalWidth * currentScale,
this.originalHeight * currentScale);
},
setDimensions: function(width, height) {
if(this.options.scaleX) this.element.style.width = width + 'px';
if(this.options.scaleY) this.element.style.height = height + 'px';
if(this.options.scaleFromCenter) {
topd = (height - this.originalHeight)/2;
leftd = (width - this.originalWidth)/2;
if(this.element.style.position=='absolute') {
if(this.options.scaleY) this.element.style.top = this.originalTop-topd + "px";
if(this.options.scaleX) this.element.style.left = this.originalLeft-leftd + "px";
} else {
if(this.options.scaleY) this.element.style.top = -topd + "px";
if(this.options.scaleX) this.element.style.left = -leftd + "px";
}
}
}
});
/* ------------- prepackaged effects ------------- */
Effect2.Fade = function(element) {
options = {
from: 1.0,
to: 0.0,
afterFinish: function(effect)
{ Element.hide(effect.element);
effect.setOpacity(1); }
}.extend(arguments[1] || {});
new Effect2.Opacity(element,options);
}
Effect2.Appear = function(element) {
options = {
from: 0.0,
to: 1.0,
beforeStart: function(effect)
{ effect.setOpacity(0);
Element.show(effect.element); },
afterUpdate: function(effect)
{ Element.show(effect.element); }
}.extend(arguments[1] || {});
new Effect2.Opacity(element,options);
}
Effect2.Puff = function(element) {
new Effect2.Parallel(
[ new Effect2.Scale(element, 200, { sync: true, scaleFromCenter: true }),
new Effect2.Opacity(element, { sync: true, to: 0.0, from: 1.0 } ) ],
{ duration: 1.0,
afterUpdate: function(effect)
{ effect.effects[0].element.style.position = 'absolute'; },
afterFinish: function(effect)
{ Element.hide(effect.effects[0].element); }
}
);
}
Effect2.BlindUp = function(element) {
$(element).style.overflow = 'hidden';
new Effect2.Scale(element, 0,
{ scaleContent: false,
scaleX: false,
afterFinish: function(effect)
{ Element.hide(effect.element) }
}.extend(arguments[1] || {})
);
}
Effect2.BlindDown = function(element) {
$(element).style.height = '0px';
$(element).style.overflow = 'hidden';
Element.show(element);
new Effect2.Scale(element, 100,
{ scaleContent: false,
scaleX: false,
scaleMode: 'contents',
scaleFrom: 0
}.extend(arguments[1] || {})
);
}
Effect2.SwitchOff = function(element) {
new Effect2.Appear(element,
{ duration: 0.4,
transition: Effect2.Transitions.flicker,
afterFinish: function(effect)
{ effect.element.style.overflow = 'hidden';
new Effect2.Scale(effect.element, 1,
{ duration: 0.3, scaleFromCenter: true,
scaleX: false, scaleContent: false,
afterUpdate: function(effect) {
if(effect.element.style.position=="")
effect.element.style.position = 'relative'; },
afterFinish: function(effect) { Element.hide(effect.element); }
} )
}
} )
}
Effect2.DropOut = function(element) {
new Effect2.Parallel(
[ new Effect2.MoveBy(element, 100, 0, { sync: true }),
new Effect2.Opacity(element, { sync: true, to: 0.0, from: 1.0 } ) ],
{ duration: 0.5,
afterFinish: function(effect)
{ Element.hide(effect.effects[0].element); }
});
}
Effect2.Shake = function(element) {
new Effect2.MoveBy(element, 0, 20,
{ duration: 0.05, afterFinish: function(effect) {
new Effect2.MoveBy(effect.element, 0, -40,
{ duration: 0.1, afterFinish: function(effect) {
new Effect2.MoveBy(effect.element, 0, 40,
{ duration: 0.1, afterFinish: function(effect) {
new Effect2.MoveBy(effect.element, 0, -40,
{ duration: 0.1, afterFinish: function(effect) {
new Effect2.MoveBy(effect.element, 0, 40,
{ duration: 0.1, afterFinish: function(effect) {
new Effect2.MoveBy(effect.element, 0, -20,
{ duration: 0.05, afterFinish: function(effect) {
}}) }}) }}) }}) }}) }});
}
Effect2.SlideDown = function(element) {
$(element).style.height = '0px';
$(element).style.overflow = 'hidden';
$(element).firstChild.style.position = 'relative';
Element.show(element);
new Effect2.Scale(element, 100,
{ scaleContent: false,
scaleX: false,
scaleMode: 'contents',
scaleFrom: 0,
afterUpdate: function(effect)
{ effect.element.firstChild.style.bottom =
(effect.originalHeight - effect.element.clientHeight) + 'px'; }
}.extend(arguments[1] || {})
);
}
Effect2.SlideUp = function(element) {
$(element).style.overflow = 'hidden';
$(element).firstChild.style.position = 'relative';
Element.show(element);
new Effect2.Scale(element, 0,
{ scaleContent: false,
scaleX: false,
afterUpdate: function(effect)
{ effect.element.firstChild.style.bottom =
(effect.originalHeight - effect.element.clientHeight) + 'px'; },
afterFinish: function(effect)
{ Element.hide(effect.element); }
}.extend(arguments[1] || {})
);
}