Download testing

dl-test.js

var $container = $('#svg-container'),
    // Canvg requires trimmed content
    content = $container.html().trim(),
    canvas = document.getElementById('svg-canvas');

// Draw svg on canvas
canvg(canvas, content);

// Change img be SVG representation
var theImage = canvas.toDataURL('image/png');
$('#png-img').attr('src', theImage);

// Base64 encode the SVG
if (window.btoa) {
    var svgBase64 = 'data:image/svg+xml;base64,\n' + btoa(content);
} else {
    // TODO
    var svgBase64 = '';
}

$('#svg-img').attr('src', svgBase64);

// Download links, <a download>
$('#svg-dl').attr('href', svgBase64);
$('#png-dl').attr('href', theImage);

// Download links, application/octet-stream
$('#svg-application').attr('href',
                           svgBase64.replace('data:image', 'data:application'));
$('#png-application').attr('href',
                           theImage.replace('data:image', 'data:application'));

// Downloadify
Downloadify.create('downloadify-svg', {
    swf: 'downloadify.swf',
    downloadImage: 'dl.png',
    width: 100,
    height: 30,
    filename: 'test.svg',
    data: function () {
        // TODO
        return content;
    },
});
Downloadify.create('downloadify-png', {
    swf: 'downloadify.swf',
    downloadImage: 'dl.png',
    width: 100,
    height: 30,
    filename: 'test.png',
    dataType: 'base64',
    data: function () {
        var dataUri = canvas.toDataURL('image/png');
        var stripped = dataUri.replace('data:image/png;base64,', '');
        return stripped;
    },
});

// execCommand
function saveContents(element) {
  if (typeof element == "string")
    element = document.getElementById(element);
  if (element) {
    if (document.execCommand) {
      var oWin = window.open("about:blank", "_blank");
      oWin.document.write(element.value);
      oWin.document.close();
      var success = oWin.document.execCommand('SaveAs', true, 'test')
      oWin.close();
      if (!success)
        alert("Sorry, your browser does not support this feature");
    }
  }
}

dl.png

downloadify.min.js

/* Downloadify 0.2 (c) 2009 by Douglas Neiner. Licensed under the MIT license */
/* See http://github.com/dcneiner/Downloadify for license and more info */
(function(){Downloadify=window.Downloadify={queue:{},uid:new Date().getTime(),getTextForSave:function(a){var b=Downloadify.queue[a];if(b)return b.getData();return""},getFileNameForSave:function(a){var b=Downloadify.queue[a];if(b)return b.getFilename();return""},getDataTypeForSave:function(a){var b=Downloadify.queue[a];if(b)return b.getDataType();return""},saveComplete:function(a){var b=Downloadify.queue[a];if(b)b.complete();return true},saveCancel:function(a){var b=Downloadify.queue[a];if(b)b.cancel();return true},saveError:function(a){var b=Downloadify.queue[a];if(b)b.error();return true},addToQueue:function(a){Downloadify.queue[a.queue_name]=a},getUID:function(a){if(a.id=="")a.id='downloadify_'+Downloadify.uid++;return a.id}};Downloadify.create=function(a,b){var c=(typeof(a)=="string"?document.getElementById(a):a);return new Downloadify.Container(c,b)};Downloadify.Container=function(d,e){var f=this;f.el=d;f.enabled=true;f.dataCallback=null;f.filenameCallback=null;f.data=null;f.filename=null;var g=function(){f.options=e;if(!f.options.append)f.el.innerHTML="";f.flashContainer=document.createElement('span');f.el.appendChild(f.flashContainer);f.queue_name=Downloadify.getUID(f.flashContainer);if(typeof(f.options.filename)==="function")f.filenameCallback=f.options.filename;else if(f.options.filename)f.filename=f.options.filename;if(typeof(f.options.data)==="function")f.dataCallback=f.options.data;else if(f.options.data)f.data=f.options.data;var a={queue_name:f.queue_name,width:f.options.width,height:f.options.height};var b={allowScriptAccess:'always'};var c={id:f.flashContainer.id,name:f.flashContainer.id};if(f.options.enabled===false)f.enabled=false;if(f.options.transparent===true)b.wmode="transparent";if(f.options.downloadImage)a.downloadImage=f.options.downloadImage;swfobject.embedSWF(f.options.swf,f.flashContainer.id,f.options.width,f.options.height,"10",null,a,b,c);Downloadify.addToQueue(f)};f.enable=function(){var a=document.getElementById(f.flashContainer.id);a.setEnabled(true);f.enabled=true};f.disable=function(){var a=document.getElementById(f.flashContainer.id);a.setEnabled(false);f.enabled=false};f.getData=function(){if(!f.enabled)return"";if(f.dataCallback)return f.dataCallback();else if(f.data)return f.data;else return""};f.getFilename=function(){if(f.filenameCallback)return f.filenameCallback();else if(f.filename)return f.filename;else return""};f.getDataType=function(){if(f.options.dataType)return f.options.dataType;return"string"};f.complete=function(){if(typeof(f.options.onComplete)==="function")f.options.onComplete()};f.cancel=function(){if(typeof(f.options.onCancel)==="function")f.options.onCancel()};f.error=function(){if(typeof(f.options.onError)==="function")f.options.onError()};g()};Downloadify.defaultOptions={swf:'media/downloadify.swf',downloadImage:'images/download.png',width:100,height:30,transparent:true,append:false,dataType:"string"}})();if(typeof(jQuery)!="undefined"){(function($){$.fn.downloadify=function(b){return this.each(function(){b=$.extend({},Downloadify.defaultOptions,b);var a=Downloadify.create(this,b);$(this).data('Downloadify',a)})}})(jQuery)};if(typeof(MooTools)!='undefined'){Element.implement({downloadify:function(a){a=$merge(Downloadify.defaultOptions,a);return this.store('Downloadify',Downloadify.create(this,a))}})};

downloadify.swf

index.html

<!DOCTYPE html>
<html>
<head>
    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://canvg.googlecode.com/svn/trunk/rgbcolor.js"></script>
    <script src="http://canvg.googlecode.com/svn/trunk/canvg.js"></script>
    <script src="swfobject.js"></script>
    <script src="downloadify.min.js"></script>
    <style>
        .container { max-height: 175px }
        p { margin: 1em 3em; }
    </style>
</head>
<body>
    <h2>Downloads</h2>
    <h3>Chrome-style <code>&lt;a download&gt;</code></h3>
    <p>Works on Chrome (one-click); Firefox (need right-click / save as)</p>
    <p>
        <a id="svg-dl" download="test.svg">SVG</a>
        <a id="png-dl" download="test.png">PNG</a>
    </p>
    <h3><code>&lt;a&gt;</code> with application/octet-stream</h3>
    <p>Works on Chrome, Firefox (but there's no default filename)</p>
    <p>
        <a id="svg-application">SVG</a>
        <a id="png-application">PNG</a>
    </p>
    <h3>Downloadify</h3>
    <p>Works on Chrome, Firefox, Opera, IE9+. Requires Flash 10.</p>
    <p>
        SVG:
        <span id="downloadify-svg"></span>
        PNG:
        <span id="downloadify-png"></span>
    </p>
    <h3>execCommand / saveAs (IE)</h3>
    <p>Works on IE9+ confirmed, rumors suggest IE6+ (but filename needs to be .txt or .html).</p>
    <p>
        <button onclick="saveContents('png-img')">PNG</button>
    </p>

    <h2>SVG:</h2>
    <div id='svg-container' class="container">
        <svg xmlns="http://www.w3.org/2000/svg" version="1.1">
        <rect x="50" y="20" width="150" height="100" style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1;stroke-opacity:0.9"></rect>
        </svg>
    </div>

    <h2>Canvas:</h2>
    <div class="container">
      <canvas id="svg-canvas"></canvas>
    </div>

    <h2>PNG:</h2>
    <p>Right-click downloadable on IE9+, Chrome, Firefox.</p>
    <img id="png-img" />

    <h2>Downloadable SVG:</h2>
    <img id="svg-img" />


    <script src="dl-test.js"></script>
</body>
</html>

swfobject.js

/*	SWFObject v2.2 <http://code.google.com/p/swfobject/> 
	is released under the MIT License <http://www.opensource.org/licenses/mit-license.php> 
*/
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