// Copyright 2014 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. #ifndef EXTENSIONS_COMMON_IMAGE_UTIL_H_ #define EXTENSIONS_COMMON_IMAGE_UTIL_H_ class SkBitmap; typedef unsigned int SkColor; namespace base { class FilePath; } // This file contains various utility functions for extension images and colors. namespace extensions { namespace image_util { // Returns whether an icon image is considered to be visible in its display // context. bool IsIconSufficientlyVisible(const SkBitmap& bitmap); // Returns whether an icon image is considered to be visible in its display // context. bool IsIconAtPathSufficientlyVisible(const base::FilePath& path); // This is the color of the toolbar in the default scheme. There is a unit test // to catch any changes to this value. extern const SkColor kDefaultToolbarColor; // Renders the icon bitmap onto another bitmap, combining it with the specified // background color, then determines whether the rendered icon is sufficiently // visible against the background. bool IsRenderedIconSufficientlyVisible(const SkBitmap& bitmap, SkColor background_color); // Returns whether an icon image is considered to be visible in its display // context, according to the previous function. bool IsRenderedIconAtPathSufficientlyVisible(const base::FilePath& path, SkColor background_color); // Icons should be a reasonable size for analysis. There have been crash // reports due to memory allocation issues with calls to // SkBitmap::allocN32Pixels. See crbug.com/1155746. constexpr int kMaxAllowedPixels = 2048 * 2048; // Renders the icon bitmap onto another bitmap, combining it with the specified // background color. The output bitmap must be empty. [[nodiscard]] bool RenderIconForVisibilityAnalysis(const SkBitmap& icon, SkColor background_color, SkBitmap* rendered_icon); // Load a PNG image from a file into the destination bitmap. bool LoadPngFromFile(const base::FilePath& path, SkBitmap* dst); } // namespace image_util } // namespace extensions #endif // EXTENSIONS_COMMON_IMAGE_UTIL_H_