security-and-privacy/CanvasBlocker
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CanvasBlocker
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DOMRect: further performance improvements 

Total improvement compared to 0.5.8: 7.2 (For #253)
This commit is contained in:
kkapsner 2019-05-11 13:16:45 +02:00
parent 82ba61095a
commit 587bd5bca8
1 changed files with 21 additions and 15 deletions
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36
lib/modifiedDOMRectAPI.js
View File

@ -4,7 +4,7 @@
(function(){
"use strict";
var scope;
let scope;
if ((typeof exports) !== "undefined"){
scope = exports;
}
@ -16,7 +16,7 @@
const {byteArrayToString: hash} = require("./hash");
var randomSupply = null;
let randomSupply = null;
scope.setRandomSupply = function(supply){
randomSupply = supply;
};
@ -93,8 +93,8 @@
fakeGenerator: function(checker){
return function getClientRects(){
return checkerWrapper(checker, this, arguments, function(args, check){
var {prefs, notify, window, original} = check;
var ret = original.apply(this, window.Array.from(args));
const {prefs, notify, window, original} = check;
const ret = args.length? original.apply(this, window.Array.from(args)): original.call(this);
for (let i = 0; i < ret.length; i += 1){
registerDOMRect(ret[i], notify, window, prefs);
}
@ -108,8 +108,8 @@
fakeGenerator: function(checker){
return function getBoundingClientRect(){
return checkerWrapper(checker, this, arguments, function(args, check){
var {prefs, notify, window, original} = check;
var ret = original.apply(this, window.Array.from(args));
const {prefs, notify, window, original} = check;
const ret = args.length? original.apply(this, window.Array.from(args)): original.call(this);
registerDOMRect(ret, notify, window, prefs);
return ret;
});
@ -122,8 +122,8 @@
fakeGenerator: function(checker){
return function getBounds(){
return checkerWrapper(checker, this, arguments, function(args, check){
var {prefs, notify, window, original} = check;
var ret = original.apply(this, window.Array.from(args));
const {prefs, notify, window, original} = check;
const ret = args.length? original.apply(this, window.Array.from(args)): original.call(this);
registerDOMRect(ret, notify, window, prefs);
return ret;
});
@ -135,8 +135,8 @@
fakeGenerator: function(checker){
return function getBBox(){
return checkerWrapper(checker, this, arguments, function(args, check){
var {prefs, notify, window, original} = check;
var ret = original.apply(this, window.Array.from(args));
const {prefs, notify, window, original} = check;
const ret = args.length? original.apply(this, window.Array.from(args)): original.call(this);
registerDOMRect(ret, notify, window, prefs);
return ret;
});
@ -148,8 +148,8 @@
fakeGenerator: function(checker){
return function getBBox(){
return checkerWrapper(checker, this, arguments, function(args, check){
var {prefs, notify, window, original} = check;
var ret = original.apply(this, window.Array.from(args));
const {prefs, notify, window, original} = check;
const ret = args.length? original.apply(this, window.Array.from(args)): original.call(this);
registerDOMRect(ret, notify, window, prefs);
return ret;
});
@ -236,7 +236,9 @@
get intersectionRect(){
return checkerWrapper(checker, this, arguments, function(args, check){
const {prefs, notify, window, original} = check;
const originalValue = original.apply(this, window.Array.from(args));
const originalValue = args.length?
original.apply(this, window.Array.from(args)):
original.call(this);
registerDOMRect(originalValue, notify, window, prefs);
return originalValue;
});
@ -257,7 +259,9 @@
get boundingClientRect(){
return checkerWrapper(checker, this, arguments, function(args, check){
const {prefs, notify, window, original} = check;
const originalValue = original.apply(this, window.Array.from(args));
const originalValue = args.length?
original.apply(this, window.Array.from(args)):
original.call(this);
registerDOMRect(originalValue, notify, window, prefs);
return originalValue;
});
@ -278,7 +282,9 @@
get rootBounds(){
return checkerWrapper(checker, this, arguments, function(args, check){
const {prefs, notify, window, original} = check;
const originalValue = original.apply(this, window.Array.from(args));
const originalValue = args.length?
original.apply(this, window.Array.from(args)):
original.call(this);
registerDOMRect(originalValue, notify, window, prefs);
return originalValue;
});