security-and-privacy/CanvasBlocker
security-and-privacy/CanvasBlocker
1
0
Fork 0
mirror of https://github.com/kkapsner/CanvasBlocker synced 2025-07-04 20:46:39 +02:00
Code Releases Activity

Suppressed notification if maxFakeSize triggers.

Browse source
This commit is contained in:
kkapsner 2016-05-11 08:58:45 +02:00
parent b8ba76300e
commit 37fd9f7a36
4 changed files with 24 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

13
lib/modifiedAPI.js
View file

@ -93,16 +93,21 @@
getImageData: {
type: "readout",
object: "CanvasRenderingContext2D",
fakeGenerator: function(prefs){
fakeGenerator: function(prefs, notify){
var maxSize = prefs("maxFakeSize") || Number.POSITIVE_INFINITY;
return function getImageData(sx, sy, sw, sh){
var window = getWindow(this.canvas);
var context = (sw * sh > maxSize)?
this:
window.HTMLCanvasElement.prototype.getContext.call(
var context;
if (sw * sh > maxSize){
context = this;
}
else {
notify();
context = window.HTMLCanvasElement.prototype.getContext.call(
getFakeCanvas(window, this.canvas),
"2d"
);
}
var data = window.CanvasRenderingContext2D.prototype.getImageData.apply(context, arguments).data;
var imageData = new window.wrappedJSObject.ImageData(sw, sh);