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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/manifest/manifest_icon_downloader.h" | 5 #include "chrome/browser/manifest/manifest_icon_downloader.h" |
| 6 | 6 |
| 7 #include <stddef.h> | 7 #include <stddef.h> |
| 8 | 8 |
| 9 #include <limits> | 9 #include <limits> |
| 10 | 10 |
| 11 #include "chrome/browser/manifest/manifest_icon_selector.h" | 11 #include "chrome/browser/manifest/manifest_icon_selector.h" |
| 12 #include "content/public/browser/browser_thread.h" | 12 #include "content/public/browser/browser_thread.h" |
| 13 #include "content/public/browser/render_frame_host.h" | 13 #include "content/public/browser/render_frame_host.h" |
| 14 #include "content/public/browser/web_contents.h" | 14 #include "content/public/browser/web_contents.h" |
| 15 #include "content/public/browser/web_contents_observer.h" | 15 #include "content/public/browser/web_contents_observer.h" |
| 16 #include "content/public/common/console_message_level.h" | 16 #include "content/public/common/console_message_level.h" |
| 17 #include "skia/ext/image_operations.h" | 17 #include "skia/ext/image_operations.h" |
| 18 #include "ui/gfx/screen.h" | 18 #include "ui/display/screen.h" |
| 19 | 19 |
| 20 // DevToolsConsoleHelper is a class that holds a WebContents in order to be able | 20 // DevToolsConsoleHelper is a class that holds a WebContents in order to be able |
| 21 // to send a message to the WebContents' main frame. It is used so | 21 // to send a message to the WebContents' main frame. It is used so |
| 22 // ManifestIconDownloader and the callers do not have to worry about | 22 // ManifestIconDownloader and the callers do not have to worry about |
| 23 // |web_contents| lifetime. If the |web_contents| is invalidated before the | 23 // |web_contents| lifetime. If the |web_contents| is invalidated before the |
| 24 // message can be sent, the message will simply be ignored. | 24 // message can be sent, the message will simply be ignored. |
| 25 class ManifestIconDownloader::DevToolsConsoleHelper | 25 class ManifestIconDownloader::DevToolsConsoleHelper |
| 26 : public content::WebContentsObserver { | 26 : public content::WebContentsObserver { |
| 27 public: | 27 public: |
| 28 explicit DevToolsConsoleHelper(content::WebContents* web_contents); | 28 explicit DevToolsConsoleHelper(content::WebContents* web_contents); |
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| 49 content::WebContents* web_contents, | 49 content::WebContents* web_contents, |
| 50 const GURL& icon_url, | 50 const GURL& icon_url, |
| 51 int ideal_icon_size_in_dp, | 51 int ideal_icon_size_in_dp, |
| 52 int minimum_icon_size_in_dp, | 52 int minimum_icon_size_in_dp, |
| 53 const ManifestIconDownloader::IconFetchCallback& callback) { | 53 const ManifestIconDownloader::IconFetchCallback& callback) { |
| 54 DCHECK(minimum_icon_size_in_dp <= ideal_icon_size_in_dp); | 54 DCHECK(minimum_icon_size_in_dp <= ideal_icon_size_in_dp); |
| 55 if (!web_contents || !icon_url.is_valid()) | 55 if (!web_contents || !icon_url.is_valid()) |
| 56 return false; | 56 return false; |
| 57 | 57 |
| 58 const float device_scale_factor = | 58 const float device_scale_factor = |
| 59 gfx::Screen::GetScreen()->GetPrimaryDisplay().device_scale_factor(); | 59 display::Screen::GetScreen()->GetPrimaryDisplay().device_scale_factor(); |
| 60 const int ideal_icon_size_in_px = | 60 const int ideal_icon_size_in_px = |
| 61 static_cast<int>(round(ideal_icon_size_in_dp * device_scale_factor)); | 61 static_cast<int>(round(ideal_icon_size_in_dp * device_scale_factor)); |
| 62 const int minimum_icon_size_in_px = | 62 const int minimum_icon_size_in_px = |
| 63 static_cast<int>(round(minimum_icon_size_in_dp * device_scale_factor)); | 63 static_cast<int>(round(minimum_icon_size_in_dp * device_scale_factor)); |
| 64 | 64 |
| 65 web_contents->DownloadImage( | 65 web_contents->DownloadImage( |
| 66 icon_url, | 66 icon_url, |
| 67 false, // is_favicon | 67 false, // is_favicon |
| 68 0, // max_bitmap_size - 0 means no maximum size. | 68 0, // max_bitmap_size - 0 means no maximum size. |
| 69 false, // bypass_cache | 69 false, // bypass_cache |
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| 193 float ratio = height / width; | 193 float ratio = height / width; |
| 194 float ratio_difference = fabs(ratio - 1); | 194 float ratio_difference = fabs(ratio - 1); |
| 195 if (ratio_difference < best_ratio_difference) { | 195 if (ratio_difference < best_ratio_difference) { |
| 196 best_index = i; | 196 best_index = i; |
| 197 best_ratio_difference = ratio_difference; | 197 best_ratio_difference = ratio_difference; |
| 198 } | 198 } |
| 199 } | 199 } |
| 200 | 200 |
| 201 return best_index; | 201 return best_index; |
| 202 } | 202 } |
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