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Viewing changes to addons/web_graph/static/lib/flotr2/js/plugins/download.js

  • Committer: jbe at tempo-consulting
  • Date: 2013-08-21 08:48:11 UTC
  • Revision ID: jbe@tempo-consulting.fr-20130821084811-913uo4l7b5ayxq8m
[NEW] Création de la branche trunk Loewert

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addons/web_graph/static/lib/flotr2/js/plugins/download.js
 
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(function() {
 
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var
 
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  D = Flotr.DOM,
 
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  _ = Flotr._;
 
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function getImage (type, canvas, width, height) {
 
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  // TODO add scaling for w / h
 
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  var
 
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    mime = 'image/'+type,
 
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    data = canvas.toDataURL(mime),
 
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    image = new Image();
 
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  image.src = data;
 
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  return image;
 
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}
 
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Flotr.addPlugin('download', {
 
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  saveImage: function (type, width, height, replaceCanvas) {
 
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    var image = null;
 
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    if (Flotr.isIE && Flotr.isIE < 9) {
 
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      image = '<html><body>'+this.canvas.firstChild.innerHTML+'</body></html>';
 
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      return window.open().document.write(image);
 
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    }
 
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    if (type !== 'jpeg' && type !== 'png') return;
 
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    image = getImage(type, this.canvas, width, height);
 
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    if (_.isElement(image) && replaceCanvas) {
 
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      this.download.restoreCanvas();
 
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      D.hide(this.canvas);
 
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      D.hide(this.overlay);
 
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      D.setStyles({position: 'absolute'});
 
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      D.insert(this.el, image);
 
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      this.saveImageElement = image;
 
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    } else {
 
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      return window.open(image.src);
 
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    }
 
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  },
 
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  restoreCanvas: function() {
 
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    D.show(this.canvas);
 
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    D.show(this.overlay);
 
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    if (this.saveImageElement) this.el.removeChild(this.saveImageElement);
 
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    this.saveImageElement = null;
 
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  }
 
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});
 
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})();