1 // Copyright (c) 2010 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_FRAME_INFOBARS_INFOBAR_CONTENT_H_ 6 #define CHROME_FRAME_INFOBARS_INFOBAR_CONTENT_H_ 7 8 #include <windows.h> 9 10 // Provides an interface between content to be displayed in an infobar and the 11 // infobar facility. Pass an instance of your implementation to 12 // InfobarManager::Show, which will result in a call to InstallInFrame to 13 // initialize the InfobarContent. 14 // 15 // The instance will be deleted by the infobar facility when it is no longer 16 // being displayed (or immediately, in the case of a failure to display). 17 class InfobarContent { 18 public: 19 // Provides access to the content's parent window and allows the 20 // InfobarContent to close itself, such as in response to user interaction. 21 class Frame { 22 public: 23 virtual ~Frame() {} 24 25 // Returns the window in which the content should display itself. 26 virtual HWND GetFrameWindow() = 0; 27 28 // Initiates closing of the infobar. 29 virtual void CloseInfobar() = 0; 30 }; // class Frame 31 32 virtual ~InfobarContent() {} 33 34 // Prepares the content to display in the provided frame. 35 // 36 // The frame pointer remains valid until the InfobarContent instance is 37 // deleted. 38 virtual bool InstallInFrame(Frame* frame) = 0; 39 40 // Provides the content with the dimensions available to it for display. 41 // Dimensions are relative to the origin of the frame window. 42 virtual void SetDimensions(const RECT& dimensions) = 0; 43 44 // Finds the desired value for one dimension given a fixed value for the other 45 // dimension. The fixed dimension parameter is non-zero whereas the requested 46 // dimension parameter will be zero. 47 virtual size_t GetDesiredSize(size_t width, size_t height) = 0; 48 }; // class InfobarContent 49 50 #endif // CHROME_FRAME_INFOBARS_INFOBAR_CONTENT_H_ 51
