1 /* 2 * Copyright (C) 2009 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior 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 #ifndef WebPluginContainer_h 32 #define WebPluginContainer_h 33 34 #include "../platform/WebCommon.h" 35 36 struct NPObject; 37 38 namespace blink { 39 40 class WebElement; 41 class WebPlugin; 42 class WebString; 43 class WebURL; 44 class WebURLRequest; 45 class WebLayer; 46 struct WebPoint; 47 struct WebRect; 48 49 class WebPluginContainer { 50 public: 51 enum TouchEventRequestType { 52 TouchEventRequestTypeNone, 53 TouchEventRequestTypeRaw, 54 TouchEventRequestTypeSynthesizedMouse, 55 }; 56 57 // Returns the element containing this plugin. 58 virtual WebElement element() = 0; 59 60 virtual void invalidate() = 0; 61 virtual void invalidateRect(const WebRect&) = 0; 62 virtual void scrollRect(int dx, int dy, const WebRect&) = 0; 63 64 // Causes the container to report its current geometry via 65 // WebPlugin::updateGeometry. 66 virtual void reportGeometry() = 0; 67 68 // Allow the plugin to pass script objects to the browser. The container 69 // tracks ownership of script objects in order to allow browser references 70 // to them to be dropped when clearScriptObjects is called. 71 virtual void allowScriptObjects() = 0; 72 73 // Drop any references to script objects allocated by the plugin. 74 // These are objects derived from WebPlugin::scriptableObject. This is 75 // called when the plugin is being destroyed or if it needs to be 76 // re-initialized. 77 virtual void clearScriptObjects() = 0; 78 79 // Returns the scriptable object associated with the DOM element 80 // containing the plugin. 81 virtual NPObject* scriptableObjectForElement() = 0; 82 83 // Executes a "javascript:" URL on behalf of the plugin in the context 84 // of the frame containing the plugin. Returns the result of script 85 // execution, if any. 86 virtual WebString executeScriptURL(const WebURL&, bool popupsAllowed) = 0; 87 88 // Loads an URL in the specified frame (or the frame containing this 89 // plugin if target is empty). If notifyNeeded is true, then upon 90 // completion, WebPlugin::didFinishLoadingFrameRequest is called if the 91 // load was successful or WebPlugin::didFailLoadingFrameRequest is 92 // called if the load failed. The given notifyData is passed along to 93 // the callback. 94 virtual void loadFrameRequest( 95 const WebURLRequest&, const WebString& target, bool notifyNeeded, void* notifyData) = 0; 96 97 // Notifies that the zoom level has changed. 98 // Note, this does NOT affect pageScaleFactor or pageZoomFactor 99 virtual void zoomLevelChanged(double zoomLevel) = 0; 100 101 // Determines whether the given rectangle in this plugin is above all other 102 // content. The rectangle is in the plugin's coordinate system. 103 virtual bool isRectTopmost(const WebRect&) = 0; 104 105 // Notifies when the plugin changes the kind of touch-events it accepts. 106 virtual void requestTouchEventType(TouchEventRequestType) = 0; 107 108 // Notifies when the plugin starts/stops accepting wheel events. Without 109 // calling the function with true, the container might not always able to 110 // receive wheel events in some cases (such as when threaded compositing 111 // is in use but a scroll bar is not in use). 112 virtual void setWantsWheelEvents(bool) = 0; 113 114 // Converts view's window coordinates to plugin's local coordinates. 115 virtual WebPoint windowToLocalPoint(const WebPoint&) = 0; 116 117 // Converts plugin's local coordinate to view's window coordinates. 118 virtual WebPoint localToWindowPoint(const WebPoint&) = 0; 119 120 virtual WebPlugin* plugin() = 0; 121 virtual void setPlugin(WebPlugin*) = 0; 122 123 virtual float deviceScaleFactor() = 0; 124 virtual float pageScaleFactor() = 0; 125 virtual float pageZoomFactor() = 0; 126 127 // Sets the layer representing the plugin for compositing. The 128 // WebPluginContainer does *not* take ownership. 129 virtual void setWebLayer(WebLayer*) = 0; 130 131 protected: ~WebPluginContainer()132 ~WebPluginContainer() { } 133 }; 134 135 } // namespace blink 136 137 #endif 138