// Copyright (c) 2012 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 CHROME_BROWSER_FAVICON_FAVICON_UTIL_H_ #define CHROME_BROWSER_FAVICON_FAVICON_UTIL_H_ #include <vector> #include "ui/base/layout.h" namespace chrome { struct FaviconBitmapResult; } namespace gfx { class Image; } // Utility class for common favicon related code. class FaviconUtil { public: // Returns the scale factors at which favicons should be fetched. This is // different from ui::GetSupportedScaleFactors() because clients which do // not support 1x should still fetch a favicon for 1x to push to sync. This // guarantees that the clients receiving sync updates pushed by this client // receive a favicon (potentially of the wrong scale factor) and do not show // the default favicon. static std::vector<ui::ScaleFactor> GetFaviconScaleFactors(); // Sets the color space used for converting |image| to an NSImage to the // system colorspace. This makes the favicon look the same in the browser UI // as it does in the renderer. static void SetFaviconColorSpace(gfx::Image* image); // Takes a vector of png-encoded frames, decodes them, and converts them to // a favicon of size favicon_size (in DIPs) at the desired ui scale factors. static gfx::Image SelectFaviconFramesFromPNGs( const std::vector<chrome::FaviconBitmapResult>& png_data, const std::vector<ui::ScaleFactor>& scale_factors, int favicon_size); }; #endif // CHROME_BROWSER_FAVICON_FAVICON_UTIL_H_