Index: chrome/renderer/resources/extensions/image_util.js |
diff --git a/chrome/renderer/resources/extensions/image_util.js b/chrome/renderer/resources/extensions/image_util.js |
deleted file mode 100644 |
index 79867404af3debe9d11598b8214de822b9389ccd..0000000000000000000000000000000000000000 |
--- a/chrome/renderer/resources/extensions/image_util.js |
+++ /dev/null |
@@ -1,82 +0,0 @@ |
-// Copyright 2013 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-// This function takes an object |imageSpec| with the key |path| - |
-// corresponding to the internet URL to be translated - and optionally |
-// |width| and |height| which are the maximum dimensions to be used when |
-// converting the image. |
-function loadImageData(imageSpec, callbacks) { |
- var path = imageSpec.path; |
- var img = new Image(); |
- if (typeof callbacks.onerror === 'function') { |
- img.onerror = function() { |
- callbacks.onerror({ problem: 'could_not_load', path: path }); |
- }; |
- } |
- img.onload = function() { |
- var canvas = document.createElement('canvas'); |
- |
- if (img.width <= 0 || img.height <= 0) { |
- callbacks.onerror({ problem: 'image_size_invalid', path: path}); |
- return; |
- } |
- |
- var scaleFactor = 1; |
- if (imageSpec.width && imageSpec.width < img.width) |
- scaleFactor = imageSpec.width / img.width; |
- |
- if (imageSpec.height && imageSpec.height < img.height) { |
- var heightScale = imageSpec.height / img.height; |
- if (heightScale < scaleFactor) |
- scaleFactor = heightScale; |
- } |
- |
- canvas.width = img.width * scaleFactor; |
- canvas.height = img.height * scaleFactor; |
- |
- var canvas_context = canvas.getContext('2d'); |
- canvas_context.clearRect(0, 0, canvas.width, canvas.height); |
- canvas_context.drawImage(img, 0, 0, canvas.width, canvas.height); |
- try { |
- var imageData = canvas_context.getImageData( |
- 0, 0, canvas.width, canvas.height); |
- if (typeof callbacks.oncomplete === 'function') { |
- callbacks.oncomplete( |
- imageData.width, imageData.height, imageData.data.buffer); |
- } |
- } catch (e) { |
- if (typeof callbacks.onerror === 'function') { |
- callbacks.onerror({ problem: 'data_url_unavailable', path: path }); |
- } |
- } |
- } |
- img.src = path; |
-} |
- |
-function on_complete_index(index, err, loading, finished, callbacks) { |
- return function(width, height, imageData) { |
- delete loading[index]; |
- finished[index] = { width: width, height: height, data: imageData }; |
- if (err) |
- callbacks.onerror(index); |
- if ($Object.keys(loading).length == 0) |
- callbacks.oncomplete(finished); |
- } |
-} |
- |
-function loadAllImages(imageSpecs, callbacks) { |
- var loading = {}, finished = [], |
- index, pathname; |
- |
- for (var index = 0; index < imageSpecs.length; index++) { |
- loading[index] = imageSpecs[index]; |
- loadImageData(imageSpecs[index], { |
- oncomplete: on_complete_index(index, false, loading, finished, callbacks), |
- onerror: on_complete_index(index, true, loading, finished, callbacks) |
- }); |
- } |
-} |
- |
-exports.loadImageData = loadImageData; |
-exports.loadAllImages = loadAllImages; |