konva/dist/kinetic-core.min.js

/**
 * KineticJS JavaScript Library core
 * http://www.kineticjs.com/
 * Copyright 2012, Eric Rowell
 * Licensed under the MIT or GPL Version 2 licenses.
 * Date: Apr 07 2012
 *
 * Copyright (C) 2011 - 2012 by Eric Rowell
 *
 * 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.
 */
var Kinetic={};Kinetic.GlobalObject={stages:[],idCounter:0,ids:{},names:{},animations:[],animIdCounter:0,frame:{time:0,timeDiff:0,lastTime:0},drag:{moving:!1,node:undefined,offset:{x:0,y:0}},extend:function(a,b){for(var c in b.prototype)b.prototype.hasOwnProperty(c)&&a.prototype[c]===undefined&&(a.prototype[c]=b.prototype[c])},addAnimation:function(a){a.id=Kinetic.GlobalObject.animIdCounter++,this.animations.push(a)},removeAnimation:function(a){var b=this.animations;for(var c=0;c<b.length;c++)if(b[c].id===a)return this.animations.splice(c,1),!1},_runFrames:function(){var a={};for(var b=0;b<this.animations.length;b++){var c=this.animations[b];c.node&&c.node.id!==undefined&&(a[c.node.id]=c.node),c.func(this.frame)}for(var d in a)a[d].draw()},_updateFrameObject:function(){var a=new Date,b=a.getTime();this.frame.lastTime===0?this.frame.lastTime=b:(this.frame.timeDiff=b-this.frame.lastTime,this.frame.lastTime=b,this.frame.time+=this.frame.timeDiff)},_animationLoop:function(){if(this.animations.length>0){this._updateFrameObject(),this._runFrames();var a=this;requestAnimFrame(function(){a._animationLoop()})}else this.frame.lastTime=0},_handleAnimation:function(){var a=this;this.animations.length>0?a._animationLoop():this.frame.lastTime=0},addId:function(a){var b=Kinetic.GlobalObject;a.attrs.id!==undefined&&(b.ids[a.attrs.id]=a)},removeId:function(a){},addName:function(a){var b=Kinetic.GlobalObject,c=a.attrs.name;c!==undefined&&(b.names[c]===undefined&&(b.names[c]=[]),b.names[c].push(a))},removeName:function(a){}},window.requestAnimFrame=function(a){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1e3/60)}}(),Kinetic.Node=function(a){this.attrs===undefined&&(this.attrs={}),this.attrs.visible=!0,this.attrs.listening=!0,this.attrs.name=undefined,this.attrs.alpha=1,this.attrs.x=0,this.attrs.y=0,this.attrs.scale={x:1,y:1},this.attrs.rotation=0,this.attrs.centerOffset={x:0,y:0},this.attrs.dragConstraint="none",this.attrs.dragBounds={},this.attrs.draggable=!1,this.eventListeners={};if(a)for(var b in a)switch(b){case"draggable":this.draggable(a[b]);break;case"listening":this.listen(a[b]);break;case"rotationDeg":this.attrs.rotation=a[b]*Math.PI/180;break;case"drawFunc":break;case"image":break;case"container":break;default:this.attrs[b]=a[b]}this.attrs.centerOffset.x===undefined&&(this.attrs.centerOffset.x=0),this.attrs.centerOffset.y===undefined&&(this.attrs.centerOffset.y=0)},Kinetic.Node.prototype={on:function(a,b){var c=a.split(" ");for(var d=0;d<c.length;d++){var e=c[d],f=e.indexOf("touch")===-1?"on"+e:e,g=f.split("."),h=g[0],i=g.length>1?g[1]:"";this.eventListeners[h]||(this.eventListeners[h]=[]),this.eventListeners[h].push({name:i,handler:b})}},off:function(a){var b=a.split(" ");for(var c=0;c<b.length;c++){var d=b[c],e=d.indexOf("touch")===-1?"on"+d:d,f=e.split("."),g=f[0];if(this.eventListeners[g]&&f.length>1){var h=f[1];for(var i=0;i<this.eventListeners[g].length;i++)if(this.eventListeners[g][i].name===h){this.eventListeners[g].splice(i,1),this.eventListeners[g].length===0&&(this.eventListeners[g]=undefined);break}}else this.eventListeners[g]=undefined}},getAttrs:function(){return this.attrs},show:function(){this.attrs.visible=!0},hide:function(){this.attrs.visible=!1},getZIndex:function(){return this.index},getAbsoluteZIndex:function(){function e(b){var f=[];for(var g=0;g<b.length;g++){var h=b[g];d++,h.nodeType!=="Shape"&&(f=f.concat(h.getChildren())),h._id===c._id&&(g=b.length)}f.length>0&&f[0].getLevel()<=a&&e(f)}var a=this.getLevel(),b=this.getStage(),c=this,d=0;return c.nodeType!=="Stage"&&e(c.getStage().getChildren()),d},getLevel:function(){var a=0,b=this.parent;while(b)a++,b=b.parent;return a},setScale:function(a,b){b?(this.attrs.scale.x=a,this.attrs.scale.y=b):(this.attrs.scale.x=a,this.attrs.scale.y=a)},getScale:function(){return this.attrs.scale},setPosition:function(a,b){this.attrs.x=a,this.attrs.y=b},getPosition:function(){return{x:this.attrs.x,y:this.attrs.y}},getAb
:function(){return this.m}},Kinetic.Transition=function(a,b){this.node=a,this.config=b,this.tweens=[];for(var c in b)c!=="duration"&&c!=="easing"&&c!=="callback"&&(b[c].x===undefined&&b[c].y===undefined&&this.add(this._getTween(c,b)),b[c].x!==undefined&&this.add(this._getComponentTween(c,"x",b)),b[c].y!==undefined&&this.add(this._getComponentTween(c,"y",b)))},Kinetic.Transition.prototype={add:function(a){this.tweens.push(a)},start:function(){for(var a=0;a<this.tweens.length;a++)this.tweens[a].start()},onEnterFrame:function(){for(var a=0;a<this.tweens.length;a++)this.tweens[a].onEnterFrame()},stop:function(){for(var a=0;a<this.tweens.length;a++)this.tweens[a].stop()},resume:function(){for(var a=0;a<this.tweens.length;a++)this.tweens[a].resume()},_getTween:function(a){var b=this.config,c=this.node,d=b.easing;d===undefined&&(d="linear");var e=new Kinetic.Tween(c,function(b){c.attrs[a]=b},Kinetic.Tweens[d],c.attrs[a],b[a],b.duration);return e},_getComponentTween:function(a,b){var c=this.config,d=this.node,e=c.easing;e===undefined&&(e="linear");var f=new Kinetic.Tween(d,function(c){d.attrs[a][b]=c},Kinetic.Tweens[e],d.attrs[a][b],c[a][b],c.duration);return f}},Kinetic.Tween=function(a,b,c,d,e,f){this._listeners=[],this.addListener(this),this.obj=a,this.propFunc=b,this.begin=d,this._pos=d,this.setDuration(f),this.isPlaying=!1,this._change=0,this.prevTime=0,this.prevPos=0,this.looping=!1,this._time=0,this._position=0,this._startTime=0,this._finish=0,this.name="",this.func=c,this.setFinish(e)},Kinetic.Tween.prototype={setTime:function(a){this.prevTime=this._time,a>this.getDuration()?this.looping?(this.rewind(a-this._duration),this.update(),this.broadcastMessage("onLooped",{target:this,type:"onLooped"})):(this._time=this._duration,this.update(),this.stop(),this.broadcastMessage("onFinished",{target:this,type:"onFinished"})):a<0?(this.rewind(),this.update()):(this._time=a,this.update())},getTime:function(){return this._time},setDuration:function(a){this._duration=a===null||a<=0?1e5:a},getDuration:function(){return this._duration},setPosition:function(a){this.prevPos=this._pos,this.propFunc(a),this._pos=a,this.broadcastMessage("onChanged",{target:this,type:"onChanged"})},getPosition:function(a){return a===undefined&&(a=this._time),this.func(a,this.begin,this._change,this._duration)},setFinish:function(a){this._change=a-this.begin},getFinish:function(){return this.begin+this._change},start:function(){this.rewind(),this.startEnterFrame(),this.broadcastMessage("onStarted",{target:this,type:"onStarted"})},rewind:function(a){this.stop(),this._time=a===undefined?0:a,this.fixTime(),this.update()},fforward:function(){this._time=this._duration,this.fixTime(),this.update()},update:function(){this.setPosition(this.getPosition(this._time))},startEnterFrame:function(){this.stopEnterFrame(),this.isPlaying=!0,this.onEnterFrame()},onEnterFrame:function(){this.isPlaying&&this.nextFrame()},nextFrame:function(){this.setTime((this.getTimer()-this._startTime)/1e3)},stop:function(){this.stopEnterFrame(),this.broadcastMessage("onStopped",{target:this,type:"onStopped"})},stopEnterFrame:function(){this.isPlaying=!1},continueTo:function(a,b){this.begin=this._pos,this.setFinish(a),this._duration!=undefined&&this.setDuration(b),this.start()},resume:function(){this.fixTime(),this.startEnterFrame(),this.broadcastMessage("onResumed",{target:this,type:"onResumed"})},yoyo:function(){this.continueTo(this.begin,this._time)},addListener:function(a){return this.removeListener(a),this._listeners.push(a)},removeListener:function(a){var b=this._listeners,c=b.length;while(c--)if(b[c]==a)return b.splice(c,1),!0;return!1},broadcastMessage:function(){var a=[];for(var b=0;b<arguments.length;b++)a.push(arguments[b]);var c=a.shift(),d=this._listeners,e=d.length;for(var b=0;b<e;b++)d[b][c]&&d[b][c].apply(d[b],a)},fixTime:function(){this._startTime=this.getTimer()-this._time*1e3},getTimer:function(){return(new Date).getTime()-this._time}},Kinetic.Tweens={"back-ease-in":function(a,b,c,d,e,f){var g=1.70158;return c*(a/=d)*a*((g+1)*a-g)+b},"back-ease-out":function(a,b,c,d,e,f){var