1 // Copyright (c) 2013 Marshall A. Greenblatt. All rights reserved. 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google Inc. nor the name Chromium Embedded 14 // Framework nor the names of its contributors may be used to endorse 15 // or promote products derived from this software without specific prior 16 // written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 // 30 // --------------------------------------------------------------------------- 31 // 32 // The contents of this file must follow a specific format in order to 33 // support the CEF translator tool. See the translator.README.txt file in the 34 // tools directory for more information. 35 // 36 37 #ifndef CEF_INCLUDE_CEF_DRAG_HANDLER_H_ 38 #define CEF_INCLUDE_CEF_DRAG_HANDLER_H_ 39 #pragma once 40 41 #include "include/cef_base.h" 42 #include "include/cef_browser.h" 43 #include "include/cef_drag_data.h" 44 #include "include/cef_frame.h" 45 46 /// 47 // Implement this interface to handle events related to dragging. The methods of 48 // this class will be called on the UI thread. 49 /// 50 /*--cef(source=client)--*/ 51 class CefDragHandler : public virtual CefBaseRefCounted { 52 public: 53 typedef cef_drag_operations_mask_t DragOperationsMask; 54 55 /// 56 // Called when an external drag event enters the browser window. |dragData| 57 // contains the drag event data and |mask| represents the type of drag 58 // operation. Return false for default drag handling behavior or true to 59 // cancel the drag event. 60 /// 61 /*--cef()--*/ OnDragEnter(CefRefPtr<CefBrowser> browser,CefRefPtr<CefDragData> dragData,DragOperationsMask mask)62 virtual bool OnDragEnter(CefRefPtr<CefBrowser> browser, 63 CefRefPtr<CefDragData> dragData, 64 DragOperationsMask mask) { 65 return false; 66 } 67 68 /// 69 // Called whenever draggable regions for the browser window change. These can 70 // be specified using the '-webkit-app-region: drag/no-drag' CSS-property. If 71 // draggable regions are never defined in a document this method will also 72 // never be called. If the last draggable region is removed from a document 73 // this method will be called with an empty vector. 74 /// 75 /*--cef()--*/ OnDraggableRegionsChanged(CefRefPtr<CefBrowser> browser,CefRefPtr<CefFrame> frame,const std::vector<CefDraggableRegion> & regions)76 virtual void OnDraggableRegionsChanged( 77 CefRefPtr<CefBrowser> browser, 78 CefRefPtr<CefFrame> frame, 79 const std::vector<CefDraggableRegion>& regions) {} 80 }; 81 82 #endif // CEF_INCLUDE_CEF_DRAG_HANDLER_H_ 83