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Make createTransformString work in non-window context

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This commit is contained in:
Andreas Hocevar
2020-03-04 16:03:09 +01:00
parent 717b8ad0cf
commit 8b76f52652
1 changed files with 7 additions and 3 deletions
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10
src/ol/renderer/canvas/Layer.js
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@@ -73,7 +73,7 @@ class CanvasLayerRenderer extends LayerRenderer {
* @type {HTMLCanvasElement}
* @private
*/
this.createTransformStringCanvas_ = createCanvasContext2D(1, 1).canvas;
this.createTransformStringCanvas_ = 'document' in self ? createCanvasContext2D(1, 1).canvas : null;
}
@@ -274,8 +274,12 @@ class CanvasLayerRenderer extends LayerRenderer {
* @return {string} CSS transform.
*/
createTransformString(transform) {
this.createTransformStringCanvas_.style.transform = toString(transform);
return this.createTransformStringCanvas_.style.transform;
if (this.createTransformStringCanvas_) {
this.createTransformStringCanvas_.style.transform = toString(transform);
return this.createTransformStringCanvas_.style.transform;
} else {
return toString(transform);
}
}
}