1 /* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef DrawingAreaMessageKinds_h 27 #define DrawingAreaMessageKinds_h 28 29 #include "MessageID.h" 30 31 // Messages sent from the web process to the UI process. 32 33 namespace DrawingAreaLegacyMessage { 34 35 enum Kind { 36 // Called whenever the size of the drawing area needs to be updated. 37 SetSize, 38 39 // Called when the drawing area should stop painting. 40 SuspendPainting, 41 42 // Called when the drawing area should start painting again. 43 ResumePainting, 44 45 // Called when an update chunk sent to the drawing area has been 46 // incorporated into the backing store. 47 DidUpdate, 48 49 #if ENABLE(TILED_BACKING_STORE) 50 // Called to request a tile update. 51 RequestTileUpdate, 52 53 // Called to cancel a requested tile update. 54 CancelTileUpdate, 55 56 // Called to take a snapshot of the page contents. 57 TakeSnapshot, 58 #endif 59 }; 60 61 } 62 63 namespace CoreIPC { 64 65 template<> struct MessageKindTraits<DrawingAreaLegacyMessage::Kind> { 66 static const MessageClass messageClass = MessageClassDrawingAreaLegacy; 67 }; 68 69 } 70 71 #endif // DrawingAreaMessageKinds_h 72