Sakurai/pdf.js
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Zero the height and width of the PageView canvas before deleting.

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This commit is contained in:
Nicholas Nethercote 2014-06-12 16:20:30 +10:00
parent da42fce118
commit 97cc06a7f9
1 changed files with 7 additions and 1 deletions
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8
web/page_view.js
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@ -99,7 +99,13 @@ var PageView = function pageView(container, id, scale,
this.annotationLayer = null; this.annotationLayer = null;
} }
delete this.canvas; if (this.canvas) {
// Zeroing the width and height causes Firefox to release graphics
// resources immediately, which can greatly reduce memory consumption.
this.canvas.width = 0;
this.canvas.height = 0;
delete this.canvas;
}
this.loadingIconDiv = document.createElement('div'); this.loadingIconDiv = document.createElement('div');
this.loadingIconDiv.className = 'loadingIcon'; this.loadingIconDiv.className = 'loadingIcon';