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