97 lines
3 KiB
JavaScript
97 lines
3 KiB
JavaScript
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dojo.provide("dojox.gfx");
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dojo.require("dojox.gfx.matrix");
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dojo.require("dojox.gfx._base");
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dojo.loadInit(function(){
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//Since loaderInit can be fired before any dojo.provide/require calls,
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//make sure the dojox.gfx object exists and only run this logic if dojox.gfx.renderer
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//has not been defined yet.
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var gfx = dojo.getObject("dojox.gfx", true), sl, flag, match;
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if(!gfx.renderer){
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var renderers = (typeof dojo.config.gfxRenderer == "string" ?
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dojo.config.gfxRenderer : "svg,vml,silverlight,canvas").split(",");
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// mobile platform detection
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// TODO: move to the base?
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var ua = navigator.userAgent, iPhoneOsBuild = 0, androidVersion = 0;
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if(dojo.isSafari >= 3){
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// detect mobile version of WebKit starting with "version 3"
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// comprehensive iPhone test. Have to figure out whether it's SVG or Canvas based on the build.
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// iPhone OS build numbers from en.wikipedia.org.
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if(ua.indexOf("iPhone") >= 0 || ua.indexOf("iPod") >= 0){
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// grab the build out of this. Expression is a little nasty because we want
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// to be sure we have the whole version string.
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match = ua.match(/Version\/(\d(\.\d)?(\.\d)?)\sMobile\/([^\s]*)\s?/);
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if(match){
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// grab the build out of the match. Only use the first three because of specific builds.
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iPhoneOsBuild = parseInt(match[4].substr(0,3), 16);
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}
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}
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}
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if(dojo.isWebKit){
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// Android detection
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if(!iPhoneOsBuild){
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match = ua.match(/Android\s+(\d+\.\d+)/);
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if(match){
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androidVersion = parseFloat(match[1]);
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// Android 1.0-1.1 doesn't support SVG but supports Canvas
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}
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}
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}
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for(var i = 0; i < renderers.length; ++i){
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switch(renderers[i]){
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case "svg":
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// iPhone OS builds greater than 5F1 should have SVG.
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if(!dojo.isIE && (!iPhoneOsBuild || iPhoneOsBuild >= 0x5f1) && !androidVersion && !dojo.isAIR){
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dojox.gfx.renderer = "svg";
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}
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break;
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case "vml":
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if(dojo.isIE){
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dojox.gfx.renderer = "vml";
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}
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break;
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case "silverlight":
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try{
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if(dojo.isIE){
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sl = new ActiveXObject("AgControl.AgControl");
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if(sl && sl.IsVersionSupported("1.0")){
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flag = true;
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}
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}else{
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if(navigator.plugins["Silverlight Plug-In"]){
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flag = true;
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}
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}
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}catch(e){
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flag = false;
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}finally{
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sl = null;
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}
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if(flag){ dojox.gfx.renderer = "silverlight"; }
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break;
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case "canvas":
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//TODO: need more comprehensive test for Canvas
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if(!dojo.isIE){
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dojox.gfx.renderer = "canvas";
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}
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break;
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}
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if(dojox.gfx.renderer){ break; }
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}
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if(dojo.config.isDebug){
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console.log("gfx renderer = " + dojox.gfx.renderer);
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}
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}
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});
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// include a renderer conditionally
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dojo.requireIf(dojox.gfx.renderer == "svg", "dojox.gfx.svg");
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dojo.requireIf(dojox.gfx.renderer == "vml", "dojox.gfx.vml");
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dojo.requireIf(dojox.gfx.renderer == "silverlight", "dojox.gfx.silverlight");
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dojo.requireIf(dojox.gfx.renderer == "canvas", "dojox.gfx.canvas");
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