diff --git a/Makefile b/Makefile
index 17ed6ce..c674908 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,7 @@ JS_FILES = \
src/GeoJson.js \
src/Dblclick.js \
src/Drag.js \
+ src/Touch.js \
src/Wheel.js \
src/Arrow.js \
src/Hash.js \
diff --git a/examples/touch/map.html b/examples/touch/map.html
new file mode 100644
index 0000000..9685042
--- /dev/null
+++ b/examples/touch/map.html
@@ -0,0 +1,47 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ ![]()
+
+
diff --git a/examples/touch/map.js b/examples/touch/map.js
new file mode 100644
index 0000000..193d977
--- /dev/null
+++ b/examples/touch/map.js
@@ -0,0 +1,71 @@
+var po = org.polymaps;
+
+var div = document.getElementById("map");
+
+var map = po.map()
+ .container(div.appendChild(po.svg("svg")))
+ .add(po.touch())
+// .add(po.hash());
+
+/*
+ * Load the "AerialWithLabels" metadata. "Aerial" and "Road" also work. For more
+ * information about the Imagery Metadata service, see
+ * http://msdn.microsoft.com/en-us/library/ff701716.aspx
+ * You should register for your own key at https://www.bingmapsportal.com/.
+ */
+var script = document.createElement("script");
+script.setAttribute("type", "text/javascript");
+script.setAttribute("src", "http://dev.virtualearth.net"
+ + "/REST/V1/Imagery/Metadata/AerialWithLabels"
+ + "?key=AmT-ZC3HPevQq5IBJ7v8qiDUxrojNaqbW1zBsKF0oMNEs53p7Nk5RlAuAmwSG7bg"
+ + "&jsonp=callback");
+document.body.appendChild(script);
+
+function callback(data) {
+
+ /* Display each resource as an image layer. */
+ var resourceSets = data.resourceSets;
+ for (var i = 0; i < resourceSets.length; i++) {
+ var resources = data.resourceSets[i].resources;
+ for (var j = 0; j < resources.length; j++) {
+ var resource = resources[j];
+ map.add(po.image()
+ .url(template(resource.imageUrl, resource.imageUrlSubdomains)))
+ .tileSize({x: resource.imageWidth, y: resource.imageHeight});
+ }
+ }
+
+ /* Display brand logo. */
+ document.getElementById("logo").src = data.brandLogoUri;
+
+ /* Display copyright notice. */
+ document.getElementById("copy").appendChild(document.createTextNode(data.copyright));
+
+ /* Display compass control. */
+ map.add(po.compass()
+ .pan("none"));
+
+}
+
+/** Returns a Bing URL template given a string and a list of subdomains. */
+function template(url, subdomains) {
+ var n = subdomains.length,
+ salt = ~~(Math.random() * n); // per-session salt
+
+ /** Returns the given coordinate formatted as a 'quadkey'. */
+ function quad(column, row, zoom) {
+ var key = "";
+ for (var i = 1; i <= zoom; i++) {
+ key += (((row >> zoom - i) & 1) << 1) | ((column >> zoom - i) & 1);
+ }
+ return key;
+ }
+
+ return function(c) {
+ var quadKey = quad(c.column, c.row, c.zoom),
+ server = Math.abs(salt + c.column + c.row + c.zoom) % n;
+ return url
+ .replace("{quadkey}", quadKey)
+ .replace("{subdomain}", subdomains[server]);
+ };
+}
diff --git a/polymaps.js b/polymaps.js
index 1424d82..167cd17 100644
--- a/polymaps.js
+++ b/polymaps.js
@@ -1543,6 +1543,88 @@ po.drag = function() {
return drag;
};
+po.touch = function() {
+ var touch = {},
+ map,
+ last;
+
+ touch.map = function(x) {
+ if (!arguments.length) return map;
+ if (map) {
+ var container = map.container();
+ container.removeEventListener("touchstart", touchstart, false);
+ container.removeEventListener("touchmove", touchmove, false);
+ container.removeEventListener("touchend", touchend, false);
+ container.removeEventListener("touchcancel", touchend, false);
+ }
+ if (map = x) {
+ var container = map.container();
+ container.addEventListener("touchstart", touchstart, false);
+ container.addEventListener("touchmove", touchmove, false);
+ container.addEventListener("touchend", touchend, false);
+ container.addEventListener("touchcancel", touchend, false);
+ }
+ return touch;
+ }
+
+ function updateMap(last, now) {
+ var delta = {
+ x: now.clientX - last.clientX,
+ y: now.clientY - last.clientY,
+ scale: now.scale - last.scale
+ };
+ if (delta.x || delta.y || delta.scale) {
+ var oldPoint = map.mouse(last),
+ location = map.pointLocation(oldPoint);
+ map.zoomBy(delta.scale, map.mouse(now), location);
+ }
+ }
+
+ function touchstart(e) {
+ if (last) {
+ // if new finger being added, finish current move sequence first
+ touchend();
+ }
+ e.preventDefault();
+
+ last = touchesCenter(e);
+ }
+
+ function touchmove(e) {
+ if (!last) {
+ // if finger was lifted, start new move sequence instead
+ return touchstart(e);
+ }
+ e.preventDefault();
+
+ var now = touchesCenter(e);
+ updateMap(last, now);
+ last = now;
+ }
+
+ function touchend(e) {
+ last = null;
+ }
+
+ function touchesCenter(e) {
+ var touches = e.touches;
+ var sumX = 0, sumY = 0;
+ for (var i = 0; i < touches.length; ++i) {
+ var touch = touches[i];
+ sumX += touch.clientX;
+ sumY += touch.clientY;
+ }
+ return {
+ clientX: sumX / touches.length,
+ pageX: sumX / touches.length,
+ clientY: sumY / touches.length,
+ pageY: sumY / touches.length,
+ scale: e.scale
+ };
+ }
+
+ return touch;
+};
po.wheel = function() {
var wheel = {},
timePrev = 0,
@@ -1763,10 +1845,9 @@ po.hash = function() {
lat = 90 - 1e-8, // allowable latitude range
map;
- var parser = function(s) {
+ var parser = function(map, s) {
var args = s.split("/").map(Number);
- if (args.length < 3 || args.some(isNaN))
- move(); // replace bogus hash
+ if (args.length < 3 || args.some(isNaN)) return true; // replace bogus hash
else {
var size = map.size();
map.zoomBy(args[0] - map.zoom(),
@@ -1791,7 +1872,8 @@ po.hash = function() {
function hashchange() {
if (location.hash === s0) return; // ignore spurious hashchange events
- parser((s0 = location.hash).substring(1));
+ if (parser(map, (s0 = location.hash).substring(1)))
+ move(); // replace bogus hash
}
hash.map = function(x) {
diff --git a/polymaps.min.js b/polymaps.min.js
index 0f7e532..c004d88 100644
--- a/polymaps.min.js
+++ b/polymaps.min.js
@@ -1,62 +1,64 @@
if(!org)var org={};if(!org.polymaps)org.polymaps={};
-(function(s){function fa(e){var f=e.indexOf(":");return f<0?e:{space:s.ns[e.substring(0,f)],local:e.substring(f+1)}}function S(){for(var e=0;ef.row){var c=e;e=f;f=c}return{x0:e.column,y0:e.row,x1:f.column,y1:f.row,dx:f.column-e.column,dy:f.row-e.row}}function ca(e,f,c,k,h){c=Math.max(c,Math.floor(f.y0));
-k=Math.min(k,Math.ceil(f.y1));if(e.x0==f.x0&&e.y0==f.y0?e.x0+f.dy/e.dy*e.dx0,o=f.dx<0;for(c=c;cf.dy){c=g;g=f;f=c}if(g.dy>e.dy){c=g;g=e;e=c}if(f.dy>e.dy){c=f;f=e;e=c}g.dy&&ca(e,g,k,h,a);f.dy&&ca(e,f,k,h,a)}s.version="2.4.0";
-var Y={x:0,y:0};s.ns={svg:"http://www.w3.org/2000/svg",xlink:"http://www.w3.org/1999/xlink"};s.id=function(){var e=0;return function(){return++e}}();s.svg=function(e){return document.createElementNS(s.ns.svg,e)};s.transform=function(e,f,c,k,h,a){var g={},l,o,t;if(!arguments.length){e=1;f=h=c=0;k=1;a=0}g.zoomFraction=function(m){if(!arguments.length)return o;o=m;l=Math.floor(o+Math.log(Math.sqrt(e*e+f*f+c*c+k*k))/Math.log(2));t=Math.pow(2,-l);return g};g.apply=function(m){var j=Math.pow(2,-m.zoom),
-u=Math.pow(2,m.zoom-l);return{column:(e*m.column*j+c*m.row*j+h)*u,row:(f*m.column*j+k*m.row*j+a)*u,zoom:m.zoom-l}};g.unapply=function(m){var j=Math.pow(2,-m.zoom),u=Math.pow(2,m.zoom+l);return{column:(m.column*j*k-m.row*j*c-h*k+a*c)/(e*k-f*c)*u,row:(m.column*j*f-m.row*j*e-h*f+a*e)/(c*f-k*e)*u,zoom:m.zoom+l}};g.toString=function(){return"matrix("+[e*t,f*t,c*t,k*t].join(" ")+" 0 0)"};return g.zoomFraction(0)};s.cache=function(e,f){function c(j){m--;f&&f(j);delete g[j.key];if(j.next)j.next.prev=j.prev;
-else if(o=j.prev)o.next=null;if(j.prev)j.prev.next=j.next;else if(l=j.next)l.prev=null}function k(){for(var j=o;m>t;j=j.prev){if(!j)break;j.lock||c(j)}}var h={},a={},g={},l=null,o=null,t=64,m=0;h.peek=function(j){return g[[j.zoom,j.column,j.row].join("/")]};h.load=function(j,u){var y=[j.zoom,j.column,j.row].join("/"),A=g[y];if(A){if(A.prev){if(A.prev.next=A.next)A.next.prev=A.prev;else o=A.prev;A.prev=null;A.next=l;l=l.prev=A}A.lock=1;return a[y]=A}A={key:y,column:j.column,row:j.row,zoom:j.zoom,next:l,
-prev:null,lock:1};e.call(null,A,u);a[y]=g[y]=A;if(l)l.prev=A;else o=A;l=A;m++;return A};h.unload=function(j){if(!(j in a))return false;var u=a[j];u.lock=0;delete a[j];u.request&&u.request.abort(false)&&c(u);return u};h.locks=function(){return a};h.size=function(j){if(!arguments.length)return t;t=j;k();return h};h.flush=function(){k();return h};h.clear=function(){for(var j in g){var u=g[j];u.request&&u.request.abort(false);f&&f(g[j]);if(u.lock){u.lock=0;u.element.parentNode.removeChild(u.element)}}a=
-{};g={};l=o=null;m=0;return h};return h};s.url=function(e){function f(k){var h=k.zoom<0?1:1<=a||!k.length)){h++;k.pop()()}}function f(g){for(var l=0;lu[1])t=u[1];m=t-(t=Math.round(t));j=Math.pow(2,m)}function f(){if(n){var d=45/Math.pow(2,t+m-3),r=Math.max(Math.abs(C*g.x+A*g.y),Math.abs(B*g.x+E*g.y)),q=V(K-r*d/l.y);r=V(i+r*d/l.y);o.lat=Math.max(q,Math.min(r,o.lat));q=Math.max(Math.abs(C*g.y+A*g.x),Math.abs(B*g.y+E*g.x));o.lon=Math.max(n[0].lon-q*d/l.x,Math.min(n[1].lon+
-q*d/l.x,o.lon))}}var c={},k,h,a=Y,g=Y,l={x:256,y:256},o={lat:37.76487,lon:-122.41948},t=12,m=0,j=1,u=[1,18],y=0,A=1,C=0,E=1,B=0,K=-180,i=180,n=[{lat:V(K),lon:-Infinity},{lat:V(i),lon:Infinity}];c.locationCoordinate=function(d){d=s.map.locationCoordinate(d);var r=Math.pow(2,t);d.column*=r;d.row*=r;d.zoom+=t;return d};c.coordinateLocation=s.map.coordinateLocation;c.coordinatePoint=function(d,r){var q=Math.pow(2,t-r.zoom),z=Math.pow(2,t-d.zoom),v=(r.column*q-d.column*z)*l.x*j;q=(r.row*q-d.row*z)*l.y*
-j;return{x:g.x+A*v-C*q,y:g.y+C*v+A*q}};c.pointCoordinate=function(d,r){var q=Math.pow(2,t-d.zoom),z=(r.x-g.x)/j,v=(r.y-g.y)/j;return{column:d.column*q+(E*z-B*v)/l.x,row:d.row*q+(B*z+E*v)/l.y,zoom:t}};c.locationPoint=function(d){var r=Math.pow(2,t+m-3)/45,q=(d.lon-o.lon)*r*l.x;d=(W(o.lat)-W(d.lat))*r*l.y;return{x:g.x+A*q-C*d,y:g.y+C*q+A*d}};c.pointLocation=function(d){var r=45/Math.pow(2,t+m-3),q=(d.x-g.x)*r;d=(d.y-g.y)*r;return{lon:o.lon+(E*q-B*d)/l.x,lat:V(W(o.lat)-(B*q+E*d)/l.y)}};var w=s.svg("rect");
-w.setAttribute("visibility","hidden");w.setAttribute("pointer-events","all");c.container=function(d){if(!arguments.length)return k;k=d;k.setAttribute("class","map");k.appendChild(w);return c.resize()};c.focusableParent=function(){for(var d=k;d;d=d.parentNode)if(d.tabIndex>=0)return d;return window};c.mouse=function(d){var r=(k.ownerSVGElement||k).createSVGPoint();if($<0&&(window.scrollX||window.scrollY)){var q=document.body.appendChild(s.svg("svg"));q.style.position="absolute";q.style.top=q.style.left=
-"0px";var z=q.getScreenCTM();$=!(z.f||z.e);document.body.removeChild(q)}if($){r.x=d.pageX;r.y=d.pageY}else{r.x=d.clientX;r.y=d.clientY}return r.matrixTransform(k.getScreenCTM().inverse())};c.size=function(d){if(!arguments.length)return a;h=d;return c.resize()};c.resize=function(){if(h){a=h;S.remove(c)}else{w.setAttribute("width","100%");w.setAttribute("height","100%");b=w.getBBox();a={x:b.width,y:b.height};S.add(c)}w.setAttribute("width",a.x);w.setAttribute("height",a.y);g={x:a.x/2,y:a.y/2};f();c.dispatch({type:"resize"});
-return c};c.tileSize=function(d){if(!arguments.length)return l;l=d;c.dispatch({type:"move"});return c};c.center=function(d){if(!arguments.length)return o;o=d;f();c.dispatch({type:"move"});return c};c.panBy=function(d){var r=45/Math.pow(2,t+m-3),q=d.x*r;d=d.y*r;return c.center({lon:o.lon+(B*d-E*q)/l.x,lat:V(W(o.lat)+(B*q+E*d)/l.y)})};c.centerRange=function(d){if(!arguments.length)return n;if(n=d){K=n[0].lat>-90?W(n[0].lat):-Infinity;i=n[0].lat<90?W(n[1].lat):Infinity}else{K=-Infinity;i=Infinity}f();
-c.dispatch({type:"move"});return c};c.zoom=function(d){if(!arguments.length)return t+m;t=d;e();return c.center(o)};c.zoomBy=function(d,r,q){if(arguments.length<2)return c.zoom(t+m+d);if(arguments.length<3)q=c.pointLocation(r);t=t+m+d;e();var z=c.locationPoint(q);return c.panBy({x:r.x-z.x,y:r.y-z.y})};c.zoomRange=function(d){if(!arguments.length)return u;u=d;return c.zoom(t+m)};c.extent=function(d){if(!arguments.length)return[c.pointLocation({x:0,y:a.y}),c.pointLocation({x:a.x,y:0})];var r=c.locationPoint(d[0]),
-q=c.locationPoint(d[1]),z=Math.max((q.x-r.x)/a.x,(r.y-q.y)/a.y);r=c.pointLocation({x:(r.x+q.x)/2,y:(r.y+q.y)/2});t=t+m-Math.log(z)/Math.log(2);e();return c.center(r)};c.angle=function(d){if(!arguments.length)return y;y=d;A=Math.cos(y);C=Math.sin(y);E=Math.cos(-y);B=Math.sin(-y);f();c.dispatch({type:"move"});return c};c.add=function(d){d.map(c);return c};c.remove=function(d){d.map(null);return c};c.dispatch=s.dispatch(c);return c};S.maps=[];S.add=function(e){for(var f=0;fB;A--){u.insertBefore(C[-1],K);u.insertBefore(C[2],C[-4]);for(var i=C[2],n=2;n>-4;)C[n]=C[--n];C[n]=i}}function h(){function B(O){var H=O.zoom,T=H<0?1:1<>Q,row:T>>Q,zoom:U-Q}))&&P.ready){M[P.key]=g.load(J);P.proxyCount++;G.proxyRefs[P.key]=P;break}}M[G.key]=G}}
-var i=a.map(),n=i.zoom(),w=n-(n=Math.round(n)),d=i.size(),r=i.angle(),q=i.tileSize(),z=i.locationCoordinate(i.center());if(A!=n){if(An)k(n);else A=n;for(var v=-4;v<=2;v++){var L=C[v];L.setAttribute("class","zoom"+(v<0?"":"+")+v+" zoom"+(n+v));L.setAttribute("transform","scale("+Math.pow(2,-v)+")")}}u.setAttribute("transform","translate("+d.x/2+","+d.y/2+")"+(r?"rotate("+r/Math.PI*180+")":"")+(w?"scale("+Math.pow(2,w)+")":"")+(y?y.zoomFraction(w):""));var I=i.pointCoordinate(z,Y);
-v=i.pointCoordinate(z,{x:d.x,y:0});n=i.pointCoordinate(z,d);i=i.pointCoordinate(z,{x:0,y:d.y});if(!w&&!r&&!y){z.column=(Math.round(q.x*z.column)+(d.x&1)/2)/q.x;z.row=(Math.round(q.y*z.row)+(d.y&1)/2)/q.y}if(y){I=y.unapply(I);v=y.unapply(v);n=y.unapply(n);i=y.unapply(i);z=y.unapply(z)}var R=t?t(I.zoom)-I.zoom:0;if(R){d=Math.pow(2,R);I.column*=d;I.row*=d;v.column*=d;v.row*=d;n.column*=d;n.row*=d;i.column*=d;i.row*=d;I.zoom=v.zoom=n.zoom=i.zoom+=R}w=g.locks();var M={};for(var F in w)w[F].proxyCount=
-0;if(o&&R>-5&&R<3){r=I.zoom<0?1:1<>v<>v<=1;E--)C[E]=u.appendChild(s.svg("g"));C[0]=u.appendChild(s.svg("g"));a.map=function(B){if(!arguments.length)return j;if(j){if(j==B){u.parentNode.appendChild(u);return a}j.off("move",h).off("resize",
-h);u.parentNode.removeChild(u)}if(j=B){j.container().appendChild(u);a.init&&a.init(u);j.on("move",h).on("resize",h);h()}return a};a.container=function(){return u};a.levels=function(){return C};a.id=function(B){if(!arguments.length)return m;m=B;u.setAttribute("id",B);return a};a.visible=function(B){if(!arguments.length)return o;(o=B)?u.removeAttribute("visibility"):u.setAttribute("visibility","hidden");j&&h();return a};a.transform=function(B){if(!arguments.length)return y;y=B;j&&h();return a};a.zoom=
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