- /**
- * Provides the base Transition class, for animating numeric properties.
- *
- * @module transition
- * @submodule transition-timer
- */
- var Transition = Y.Transition;
- Y.mix(Transition.prototype, {
- _start: function() {
- if (Transition.useNative) {
- this._runNative();
- } else {
- this._runTimer();
- }
- },
- _runTimer: function() {
- var anim = this;
- anim._initAttrs();
- Transition._running[Y.stamp(anim)] = anim;
- anim._startTime = new Date();
- Transition._startTimer();
- },
- _endTimer: function() {
- var anim = this;
- delete Transition._running[Y.stamp(anim)];
- anim._startTime = null;
- },
- _runFrame: function() {
- var t = new Date() - this._startTime;
- this._runAttrs(t);
- },
- _runAttrs: function(time) {
- var anim = this,
- node = anim._node,
- config = anim._config,
- uid = Y.stamp(node),
- attrs = Transition._nodeAttrs[uid],
- customAttr = Transition.behaviors,
- done = false,
- allDone = false,
- data,
- name,
- attribute,
- setter,
- elapsed,
- delay,
- d,
- t,
- i;
- for (name in attrs) {
- if ((attribute = attrs[name]) && attribute.transition === anim) {
- d = attribute.duration;
- delay = attribute.delay;
- elapsed = (time - delay) / 1000;
- t = time;
- data = {
- type: 'propertyEnd',
- propertyName: name,
- config: config,
- elapsedTime: elapsed
- };
- setter = (i in customAttr && 'set' in customAttr[i]) ?
- customAttr[i].set : Transition.DEFAULT_SETTER;
- done = (t >= d);
- if (t > d) {
- t = d;
- }
- if (!delay || time >= delay) {
- setter(anim, name, attribute.from, attribute.to, t - delay, d - delay,
- attribute.easing, attribute.unit);
- if (done) {
- delete attrs[name];
- anim._count--;
- if (config[name] && config[name].on && config[name].on.end) {
- config[name].on.end.call(Y.one(node), data);
- }
- //node.fire('transition:propertyEnd', data);
- if (!allDone && anim._count <= 0) {
- allDone = true;
- anim._end(elapsed);
- anim._endTimer();
- }
- }
- }
- }
- }
- },
- _initAttrs: function() {
- var anim = this,
- customAttr = Transition.behaviors,
- uid = Y.stamp(anim._node),
- attrs = Transition._nodeAttrs[uid],
- attribute,
- duration,
- delay,
- easing,
- val,
- name,
- mTo,
- mFrom,
- unit, begin, end;
- for (name in attrs) {
- if ((attribute = attrs[name]) && attribute.transition === anim) {
- duration = attribute.duration * 1000;
- delay = attribute.delay * 1000;
- easing = attribute.easing;
- val = attribute.value;
- // only allow supported properties
- if (name in anim._node.style || name in Y.DOM.CUSTOM_STYLES) {
- begin = (name in customAttr && 'get' in customAttr[name]) ?
- customAttr[name].get(anim, name) : Transition.DEFAULT_GETTER(anim, name);
- mFrom = Transition.RE_UNITS.exec(begin);
- mTo = Transition.RE_UNITS.exec(val);
- begin = mFrom ? mFrom[1] : begin;
- end = mTo ? mTo[1] : val;
- unit = mTo ? mTo[2] : mFrom ? mFrom[2] : ''; // one might be zero TODO: mixed units
- if (!unit && Transition.RE_DEFAULT_UNIT.test(name)) {
- unit = Transition.DEFAULT_UNIT;
- }
- if (typeof easing === 'string') {
- if (easing.indexOf('cubic-bezier') > -1) {
- easing = easing.substring(13, easing.length - 1).split(',');
- } else if (Transition.easings[easing]) {
- easing = Transition.easings[easing];
- }
- }
- attribute.from = Number(begin);
- attribute.to = Number(end);
- attribute.unit = unit;
- attribute.easing = easing;
- attribute.duration = duration + delay;
- attribute.delay = delay;
- } else {
- delete attrs[name];
- anim._count--;
- }
- }
- }
- },
- destroy: function() {
- this.detachAll();
- this._node = null;
- }
- }, true);
- Y.mix(Y.Transition, {
- _runtimeAttrs: {},
- /*
- * Regex of properties that should use the default unit.
- *
- * @property RE_DEFAULT_UNIT
- * @static
- */
- RE_DEFAULT_UNIT: /^width|height|top|right|bottom|left|margin.*|padding.*|border.*$/i,
- /*
- * The default unit to use with properties that pass the RE_DEFAULT_UNIT test.
- *
- * @property DEFAULT_UNIT
- * @static
- */
- DEFAULT_UNIT: 'px',
- /*
- * Time in milliseconds passed to setInterval for frame processing
- *
- * @property intervalTime
- * @default 20
- * @static
- */
- intervalTime: 20,
- /*
- * Bucket for custom getters and setters
- *
- * @property behaviors
- * @static
- */
- behaviors: {
- left: {
- get: function(anim, attr) {
- return Y.DOM._getAttrOffset(anim._node, attr);
- }
- }
- },
- /*
- * The default setter to use when setting object properties.
- *
- * @property DEFAULT_SETTER
- * @static
- */
- DEFAULT_SETTER: function(anim, att, from, to, elapsed, duration, fn, unit) {
- from = Number(from);
- to = Number(to);
- var node = anim._node,
- val = Transition.cubicBezier(fn, elapsed / duration);
- val = from + val[0] * (to - from);
- if (node) {
- if (att in node.style || att in Y.DOM.CUSTOM_STYLES) {
- unit = unit || '';
- Y.DOM.setStyle(node, att, val + unit);
- }
- } else {
- anim._end();
- }
- },
- /*
- * The default getter to use when getting object properties.
- *
- * @property DEFAULT_GETTER
- * @static
- */
- DEFAULT_GETTER: function(anim, att) {
- var node = anim._node,
- val = '';
- if (att in node.style || att in Y.DOM.CUSTOM_STYLES) {
- val = Y.DOM.getComputedStyle(node, att);
- }
- return val;
- },
- _startTimer: function() {
- if (!Transition._timer) {
- Transition._timer = setInterval(Transition._runFrame, Transition.intervalTime);
- }
- },
- _stopTimer: function() {
- clearInterval(Transition._timer);
- Transition._timer = null;
- },
- /*
- * Called per Interval to handle each animation frame.
- * @method _runFrame
- * @private
- * @static
- */
- _runFrame: function() {
- var done = true,
- anim;
- for (anim in Transition._running) {
- if (Transition._running[anim]._runFrame) {
- done = false;
- Transition._running[anim]._runFrame();
- }
- }
- if (done) {
- Transition._stopTimer();
- }
- },
- cubicBezier: function(p, t) {
- var x0 = 0,
- y0 = 0,
- x1 = p[0],
- y1 = p[1],
- x2 = p[2],
- y2 = p[3],
- x3 = 1,
- y3 = 0,
- A = x3 - 3 * x2 + 3 * x1 - x0,
- B = 3 * x2 - 6 * x1 + 3 * x0,
- C = 3 * x1 - 3 * x0,
- D = x0,
- E = y3 - 3 * y2 + 3 * y1 - y0,
- F = 3 * y2 - 6 * y1 + 3 * y0,
- G = 3 * y1 - 3 * y0,
- H = y0,
- x = (((A*t) + B)*t + C)*t + D,
- y = (((E*t) + F)*t + G)*t + H;
- return [x, y];
- },
- easings: {
- ease: [0.25, 0, 1, 0.25],
- linear: [0, 0, 1, 1],
- 'ease-in': [0.42, 0, 1, 1],
- 'ease-out': [0, 0, 0.58, 1],
- 'ease-in-out': [0.42, 0, 0.58, 1]
- },
- _running: {},
- _timer: null,
- RE_UNITS: /^(-?\d*\.?\d*){1}(em|ex|px|in|cm|mm|pt|pc|%)*$/
- }, true);
- Transition.behaviors.top = Transition.behaviors.bottom = Transition.behaviors.right = Transition.behaviors.left;
- Y.Transition = Transition;
-