[Pkg-javascript-commits] [pdf.js] 62/141: Use Opaque Canvas where possible

[David Prévot]

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taffit pushed a commit to branch master
in repository pdf.js.

commit b10aa18b3eda4437668b5453e20f729790b4a437
Author: p01 <p01 at opera.com>
Date:   Thu Apr 3 13:41:24 2014 +0200

    Use Opaque Canvas where possible
---
 src/display/api.js        | 2 +-
 web/page_view.js          | 2 +-
 web/text_layer_builder.js | 2 +-
 web/thumbnail_view.js     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/display/api.js b/src/display/api.js
index 807cce7..66304ea 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -688,7 +688,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
         info('The worker has been disabled.');
       }
     }
-//#endif    
+//#endif
     // Either workers are disabled, not supported or have thrown an exception.
     // Thus, we fallback to a faked worker.
     globalScope.PDFJS.disableWorker = true;
diff --git a/web/page_view.js b/web/page_view.js
index d961079..546ab3f 100644
--- a/web/page_view.js
+++ b/web/page_view.js
@@ -462,7 +462,7 @@ var PageView = function pageView(container, id, scale,
     this.canvas = canvas;
 
     var scale = this.scale;
-    var ctx = canvas.getContext('2d');
+    var ctx = canvas.getContext('2d', {alpha: false});
     var outputScale = getOutputScale(ctx);
 
     if (USE_ONLY_CSS_ZOOM) {
diff --git a/web/text_layer_builder.js b/web/text_layer_builder.js
index 40aa857..d7d52d3 100644
--- a/web/text_layer_builder.js
+++ b/web/text_layer_builder.js
@@ -53,7 +53,7 @@ var TextLayerBuilder = function textLayerBuilder(options) {
   this.renderLayer = function textLayerBuilderRenderLayer() {
     var textDivs = this.textDivs;
     var canvas = document.createElement('canvas');
-    var ctx = canvas.getContext('2d');
+    var ctx = canvas.getContext('2d', {alpha: false});
 
     // No point in rendering so many divs as it'd make the browser unusable
     // even after the divs are rendered
diff --git a/web/thumbnail_view.js b/web/thumbnail_view.js
index 90d4e89..cd3da4b 100644
--- a/web/thumbnail_view.js
+++ b/web/thumbnail_view.js
@@ -111,7 +111,7 @@ var ThumbnailView = function thumbnailView(container, id, defaultViewport) {
 
     ring.appendChild(canvas);
 
-    var ctx = canvas.getContext('2d');
+    var ctx = canvas.getContext('2d', {alpha: false});
     ctx.save();
     ctx.fillStyle = 'rgb(255, 255, 255)';
     ctx.fillRect(0, 0, this.canvasWidth, this.canvasHeight);

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