1 /* 2 * Copyright (C) 2010 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 AccessibilityUIElement_h 32 #define AccessibilityUIElement_h 33 34 #include "CppBoundClass.h" 35 #include "WebAccessibilityObject.h" 36 #include <wtf/Vector.h> 37 38 class AccessibilityUIElement : public CppBoundClass { 39 public: 40 class Factory { 41 public: ~Factory()42 virtual ~Factory() { } 43 virtual AccessibilityUIElement* create(const WebKit::WebAccessibilityObject&) = 0; 44 }; 45 46 AccessibilityUIElement(const WebKit::WebAccessibilityObject&, Factory*); 47 48 virtual AccessibilityUIElement* getChildAtIndex(unsigned); isRoot()49 virtual bool isRoot() const { return false; } 50 51 protected: accessibilityObject()52 const WebKit::WebAccessibilityObject& accessibilityObject() const { return m_accessibilityObject; } factory()53 Factory* factory() const { return m_factory; } 54 55 private: 56 // Bound methods and properties. 57 void allAttributesCallback(const CppArgumentList&, CppVariant*); 58 void attributesOfLinkedUIElementsCallback(const CppArgumentList&, CppVariant*); 59 void attributesOfDocumentLinksCallback(const CppArgumentList&, CppVariant*); 60 void attributesOfChildrenCallback(const CppArgumentList&, CppVariant*); 61 void parametrizedAttributeNamesCallback(const CppArgumentList&, CppVariant*); 62 void lineForIndexCallback(const CppArgumentList&, CppVariant*); 63 void boundsForRangeCallback(const CppArgumentList&, CppVariant*); 64 void stringForRangeCallback(const CppArgumentList&, CppVariant*); 65 void childAtIndexCallback(const CppArgumentList&, CppVariant*); 66 void elementAtPointCallback(const CppArgumentList&, CppVariant*); 67 void attributesOfColumnHeadersCallback(const CppArgumentList&, CppVariant*); 68 void attributesOfRowHeadersCallback(const CppArgumentList&, CppVariant*); 69 void attributesOfColumnsCallback(const CppArgumentList&, CppVariant*); 70 void attributesOfRowsCallback(const CppArgumentList&, CppVariant*); 71 void attributesOfVisibleCellsCallback(const CppArgumentList&, CppVariant*); 72 void attributesOfHeaderCallback(const CppArgumentList&, CppVariant*); 73 void indexInTableCallback(const CppArgumentList&, CppVariant*); 74 void rowIndexRangeCallback(const CppArgumentList&, CppVariant*); 75 void columnIndexRangeCallback(const CppArgumentList&, CppVariant*); 76 void cellForColumnAndRowCallback(const CppArgumentList&, CppVariant*); 77 void titleUIElementCallback(const CppArgumentList&, CppVariant*); 78 void setSelectedTextRangeCallback(const CppArgumentList&, CppVariant*); 79 void attributeValueCallback(const CppArgumentList&, CppVariant*); 80 void isAttributeSettableCallback(const CppArgumentList&, CppVariant*); 81 void isActionSupportedCallback(const CppArgumentList&, CppVariant*); 82 void parentElementCallback(const CppArgumentList&, CppVariant*); 83 void incrementCallback(const CppArgumentList&, CppVariant*); 84 void decrementCallback(const CppArgumentList&, CppVariant*); 85 void fallbackCallback(const CppArgumentList&, CppVariant*); 86 87 void childrenCountGetterCallback(CppVariant*); 88 void descriptionGetterCallback(CppVariant*); 89 void isEnabledGetterCallback(CppVariant*); 90 void isSelectedGetterCallback(CppVariant*); 91 void roleGetterCallback(CppVariant*); 92 void titleGetterCallback(CppVariant*); 93 94 CppVariant m_subrole; 95 CppVariant m_language; 96 CppVariant m_x; 97 CppVariant m_y; 98 CppVariant m_width; 99 CppVariant m_height; 100 CppVariant m_clickPointX; 101 CppVariant m_clickPointY; 102 CppVariant m_intValue; 103 CppVariant m_minValue; 104 CppVariant m_maxValue; 105 CppVariant m_childrenCount; 106 CppVariant m_insertionPointLineNumber; 107 CppVariant m_selectedTextRange; 108 CppVariant m_isRequired; 109 CppVariant m_valueDescription; 110 111 WebKit::WebAccessibilityObject m_accessibilityObject; 112 Factory* m_factory; 113 }; 114 115 116 class RootAccessibilityUIElement : public AccessibilityUIElement { 117 public: 118 RootAccessibilityUIElement(const WebKit::WebAccessibilityObject&, Factory*); 119 120 virtual AccessibilityUIElement* getChildAtIndex(unsigned); isRoot()121 virtual bool isRoot() const { return true; } 122 }; 123 124 125 // Provides simple lifetime management of the AccessibilityUIElement instances: 126 // all AccessibilityUIElements ever created from the controller are stored in 127 // a list and cleared explicitly. 128 class AccessibilityUIElementList : public AccessibilityUIElement::Factory { 129 public: AccessibilityUIElementList()130 AccessibilityUIElementList() { } 131 virtual ~AccessibilityUIElementList(); 132 133 void clear(); 134 virtual AccessibilityUIElement* create(const WebKit::WebAccessibilityObject&); 135 AccessibilityUIElement* createRoot(const WebKit::WebAccessibilityObject&); 136 137 private: 138 typedef Vector<AccessibilityUIElement*> ElementList; 139 ElementList m_elements; 140 }; 141 142 #endif // AccessibilityUIElement_h 143