- From: Ian Hickson <ian@hixie.ch>
- Date: Thu, 10 Dec 2009 15:38:32 +0000 (UTC)
On Thu, 10 Dec 2009, Michael A. Puls II wrote:
>
> I don't know canvas stuff that well. What's the proper way to patch cloneNode
> to do a full copy?
>
> I think something like the following, but maybe you know better.
>
> (function() {
> var oldCloneNode = HTMLCanvasElement.prototype.cloneNode;
> HTMLCanvasElement.prototype.cloneNode = function(deep) {
> var copy = oldCloneNode.call(this, deep);
> var copy_ctx = copy.getContext("2d");
> copy_ctx.drawImage(this, 0, 0, this.width, this.height);
> return copy;
> };
> })();
Looks right to me, though generally I would discourage this style of
programming as it makes it quite hard for people to maintain unless they
are very familiar with the codebase.
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Thursday, 10 December 2009 07:38:32 UTC