111 lines
3.5 KiB
JavaScript
111 lines
3.5 KiB
JavaScript
//>>built
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define("dojox/geo/openlayers/TouchInteractionSupport",["dojo/_base/kernel","dojo/_base/declare","dojo/_base/connect","dojo/_base/html","dojo/_base/lang","dojo/_base/event","dojo/_base/window"],function(_1,_2,_3,_4,_5,_6,_7){
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return _2("dojox.geo.openlayers.TouchInteractionSupport",null,{_map:null,_centerTouchLocation:null,_touchMoveListener:null,_touchEndListener:null,_initialFingerSpacing:null,_initialScale:null,_tapCount:null,_tapThreshold:null,_lastTap:null,constructor:function(_8){
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this._map=_8;
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this._centerTouchLocation=new OpenLayers.LonLat(0,0);
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var _9=this._map.div;
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_3.connect(_9,"touchstart",this,this._touchStartHandler);
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_3.connect(_9,"touchmove",this,this._touchMoveHandler);
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_3.connect(_9,"touchend",this,this._touchEndHandler);
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this._tapCount=0;
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this._lastTap={x:0,y:0};
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this._tapThreshold=100;
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},_getTouchBarycenter:function(_a){
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var _b=_a.touches;
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var _c=_b[0];
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var _d=null;
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if(_b.length>1){
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_d=_b[1];
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}else{
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_d=_b[0];
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}
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var _e=_4.marginBox(this._map.div);
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var _f=(_c.pageX+_d.pageX)/2-_e.l;
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var _10=(_c.pageY+_d.pageY)/2-_e.t;
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return {x:_f,y:_10};
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},_getFingerSpacing:function(_11){
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var _12=_11.touches;
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var _13=-1;
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if(_12.length>=2){
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var dx=(_12[1].pageX-_12[0].pageX);
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var dy=(_12[1].pageY-_12[0].pageY);
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_13=Math.sqrt(dx*dx+dy*dy);
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}
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return _13;
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},_isDoubleTap:function(_14){
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var _15=false;
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var _16=_14.touches;
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if((this._tapCount>0)&&_16.length==1){
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var dx=(_16[0].pageX-this._lastTap.x);
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var dy=(_16[0].pageY-this._lastTap.y);
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var _17=dx*dx+dy*dy;
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if(_17<this._tapThreshold){
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_15=true;
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}else{
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this._tapCount=0;
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}
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}
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this._tapCount++;
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this._lastTap.x=_16[0].pageX;
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this._lastTap.y=_16[0].pageY;
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setTimeout(_5.hitch(this,function(){
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this._tapCount=0;
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}),300);
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return _15;
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},_doubleTapHandler:function(_18){
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var _19=_18.touches;
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var _1a=_4.marginBox(this._map.div);
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var _1b=_19[0].pageX-_1a.l;
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var _1c=_19[0].pageY-_1a.t;
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var _1d=this._map.getLonLatFromPixel(new OpenLayers.Pixel(_1b,_1c));
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this._map.setCenter(new OpenLayers.LonLat(_1d.lon,_1d.lat),this._map.getZoom()+1);
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},_touchStartHandler:function(_1e){
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_6.stop(_1e);
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if(this._isDoubleTap(_1e)){
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this._doubleTapHandler(_1e);
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return;
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}
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var _1f=this._getTouchBarycenter(_1e);
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this._centerTouchLocation=this._map.getLonLatFromPixel(new OpenLayers.Pixel(_1f.x,_1f.y));
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this._initialFingerSpacing=this._getFingerSpacing(_1e);
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this._initialScale=this._map.getScale();
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if(!this._touchMoveListener){
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this._touchMoveListener=_3.connect(_7.global,"touchmove",this,this._touchMoveHandler);
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}
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if(!this._touchEndListener){
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this._touchEndListener=_3.connect(_7.global,"touchend",this,this._touchEndHandler);
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}
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},_touchEndHandler:function(_20){
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_6.stop(_20);
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var _21=_20.touches;
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if(_21.length==0){
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if(this._touchMoveListener){
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_3.disconnect(this._touchMoveListener);
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this._touchMoveListener=null;
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}
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if(this._touchEndListener){
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_3.disconnect(this._touchEndListener);
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this._touchEndListener=null;
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}
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}else{
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var _22=this._getTouchBarycenter(_20);
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this._centerTouchLocation=this._map.getLonLatFromPixel(new OpenLayers.Pixel(_22.x,_22.y));
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}
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},_touchMoveHandler:function(_23){
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_6.stop(_23);
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var _24=this._getTouchBarycenter(_23);
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var _25=this._map.getLonLatFromPixel(new OpenLayers.Pixel(_24.x,_24.y));
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var _26=_25.lon-this._centerTouchLocation.lon;
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var _27=_25.lat-this._centerTouchLocation.lat;
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var _28=1;
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var _29=_23.touches;
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if(_29.length>=2){
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var _2a=this._getFingerSpacing(_23);
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_28=_2a/this._initialFingerSpacing;
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this._map.zoomToScale(this._initialScale/_28);
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}
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var _2b=this._map.getCenter();
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this._map.setCenter(new OpenLayers.LonLat(_2b.lon-_26,_2b.lat-_27));
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}});
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});
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