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Remove duplicate isCanvasTainted function in tests.

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This commit is contained in:
Antoine Vandecreme 2015-11-04 17:49:13 -05:00
parent 0c75b45075
commit 03ed52c5b4
1 changed files with 5 additions and 15 deletions
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20
test/modules/basic.js
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@ -314,23 +314,11 @@
var canvas = document.createElement("canvas"); var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d"); var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0); ctx.drawImage(img, 0, 0);
callback(!isCanvasTainted(ctx)); callback(!OpenSeadragon.isCanvasTainted(canvas));
}; };
img.src = corsImg; img.src = corsImg;
} }
function isCanvasTainted(context) {
var isTainted = false;
try {
// We test if the canvas is tainted by retrieving data from it.
// An exception will be raised if the canvas is tainted.
var url = context.getImageData(0, 0, 1, 1);
} catch (e) {
isTainted = true;
}
return isTainted;
}
asyncTest( 'CrossOriginPolicyMissing', function () { asyncTest( 'CrossOriginPolicyMissing', function () {
viewer.crossOriginPolicy = false; viewer.crossOriginPolicy = false;
@ -343,7 +331,8 @@
} ] } ]
} ); } );
viewer.addHandler('tile-drawn', function() { viewer.addHandler('tile-drawn', function() {
ok(isCanvasTainted(viewer.drawer.context), "Canvas should be tainted."); ok(OpenSeadragon.isCanvasTainted(viewer.drawer.context.canvas),
"Canvas should be tainted.");
start(); start();
}); });
@ -366,7 +355,8 @@
} ] } ]
} ); } );
viewer.addHandler('tile-drawn', function() { viewer.addHandler('tile-drawn', function() {
ok(!isCanvasTainted(viewer.drawer.context), "Canvas should not be tainted."); ok(!OpenSeadragon.isCanvasTainted(viewer.drawer.context.canvas),
"Canvas should not be tainted.");
start(); start();
}); });
} }