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'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#ifndef PluginWidget_h 26#define PluginWidget_h 27 28#include "PlatformLayer.h" 29#include "ScrollTypes.h" 30#include "Widget.h" 31#include <wtf/text/WTFString.h> 32 33namespace JSC { 34 class ExecState; 35 class JSGlobalObject; 36 class JSObject; 37} 38 39namespace WebCore { 40 41class Scrollbar; 42 43// PluginViewBase is a widget that all plug-in views inherit from, both in Webkit and WebKit2. 44// It's intended as a stopgap measure until we can merge all plug-in views into a single plug-in view. 45class PluginViewBase : public Widget { 46public: 47 virtual PlatformLayer* platformLayer() const { return 0; } 48#if PLATFORM(IOS) 49 virtual bool willProvidePluginLayer() const { return false; } 50 virtual void attachPluginLayer() { } 51 virtual void detachPluginLayer() { } 52#endif 53 54 virtual JSC::JSObject* scriptObject(JSC::JSGlobalObject*) { return 0; } 55 virtual void storageBlockingStateChanged() { } 56 virtual void privateBrowsingStateChanged(bool) { } 57 virtual bool getFormValue(String&) { return false; } 58 virtual bool scroll(ScrollDirection, ScrollGranularity) { return false; } 59 60 // A plug-in can ask WebKit to handle scrollbars for it. 61 virtual Scrollbar* horizontalScrollbar() { return 0; } 62 virtual Scrollbar* verticalScrollbar() { return 0; } 63 64 // FIXME: This is a hack that works around the fact that the WebKit2 PluginView isn't a ScrollableArea. 65 virtual bool wantsWheelEvents() { return false; } 66 virtual bool supportsKeyboardFocus() const { return false; } 67 virtual bool canProcessDrag() const { return false; } 68 69 virtual bool shouldAlwaysAutoStart() const { return false; } 70 virtual void beginSnapshottingRunningPlugin() { } 71 72 virtual bool shouldAllowNavigationFromDrags() const { return false; } 73 74 virtual bool isPluginViewBase() const { return true; } 75 virtual bool shouldNotAddLayer() const { return false; } 76 77protected: 78 explicit PluginViewBase(PlatformWidget widget = 0) : Widget(widget) { } 79}; 80 81WIDGET_TYPE_CASTS(PluginViewBase, isPluginViewBase()); 82 83} // namespace WebCore 84 85#endif // PluginWidget_h 86