1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_EXTENSIONS_API_SYSTEM_DISPLAY_DISPLAY_INFO_PROVIDER_H_ 6 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_DISPLAY_DISPLAY_INFO_PROVIDER_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "chrome/common/extensions/api/system_display.h" 12 13 namespace gfx { 14 class Display; 15 } 16 17 namespace extensions { 18 19 typedef std::vector<linked_ptr< 20 api::system_display::DisplayUnitInfo> > DisplayInfo; 21 22 class DisplayInfoProvider { 23 public : 24 static DisplayInfoProvider* Get(); 25 26 DisplayInfoProvider(); 27 virtual ~DisplayInfoProvider(); 28 29 // This is for tests that run in its own process (e.g. browser_tests). 30 // Using this in other tests (e.g. unit_tests) will result in DCHECK failure. 31 static void InitializeForTesting(DisplayInfoProvider* display_info_provider); 32 33 DisplayInfo GetAllDisplaysInfo(); 34 35 virtual bool SetInfo(const std::string& display_id, 36 const api::system_display::DisplayProperties& info, 37 std::string* error); 38 39 private: 40 // Update the content of the |unit| obtained for |display| using 41 // platform specific method. 42 virtual void UpdateDisplayUnitInfoForPlatform( 43 const gfx::Display& display, 44 extensions::api::system_display::DisplayUnitInfo* unit); 45 46 DISALLOW_COPY_AND_ASSIGN(DisplayInfoProvider); 47 }; 48 49 } // namespace extensions 50 51 #endif // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_DISPLAY_DISPLAY_INFO_PROVIDER_H_ 52