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Merge pull request #5480 from CodingFabian/issue-5458

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Remove TryCatch in canvas for EvenOdd winding rule.
This commit is contained in:
Tim van der Meij 2015-10-04 15:31:34 +02:00
commit dd9d0b8770
2 changed files with 6 additions and 14 deletions
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14
src/display/canvas.js
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@ -1099,12 +1099,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
ctx.fill(); ctx.fill();
ctx.mozFillRule = 'nonzero'; ctx.mozFillRule = 'nonzero';
} else { } else {
try { ctx.fill('evenodd');
ctx.fill('evenodd');
} catch (ex) {
// shouldn't really happen, but browsers might think differently
ctx.fill();
}
} }
this.pendingEOFill = false; this.pendingEOFill = false;
} else { } else {
@ -2117,12 +2112,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
ctx.clip(); ctx.clip();
ctx.mozFillRule = 'nonzero'; ctx.mozFillRule = 'nonzero';
} else { } else {
try { ctx.clip('evenodd');
ctx.clip('evenodd');
} catch (ex) {
// shouldn't really happen, but browsers might think differently
ctx.clip();
}
} }
} else { } else {
ctx.clip(); ctx.clip();

6
web/compatibility.js
View File

@ -522,9 +522,9 @@ if (typeof PDFJS === 'undefined') {
if (polyfill) { if (polyfill) {
var contextPrototype = window.CanvasRenderingContext2D.prototype; var contextPrototype = window.CanvasRenderingContext2D.prototype;
contextPrototype._createImageData = contextPrototype.createImageData; var createImageData = contextPrototype.createImageData;
contextPrototype.createImageData = function(w, h) { contextPrototype.createImageData = function(w, h) {
var imageData = this._createImageData(w, h); var imageData = createImageData.call(this, w, h);
imageData.data.set = function(arr) { imageData.data.set = function(arr) {
for (var i = 0, ii = this.length; i < ii; i++) { for (var i = 0, ii = this.length; i < ii; i++) {
this[i] = arr[i]; this[i] = arr[i];
@ -532,6 +532,8 @@ if (typeof PDFJS === 'undefined') {
}; };
return imageData; return imageData;
}; };
// this closure will be kept referenced, so clear its vars
contextPrototype = null;
} }
} }
})(); })();