1/* 2 * Copyright (C) 2011 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "AccessibilitySpinButton.h" 28 29#include "AXObjectCache.h" 30#include "RenderElement.h" 31 32namespace WebCore { 33 34PassRefPtr<AccessibilitySpinButton> AccessibilitySpinButton::create() 35{ 36 return adoptRef(new AccessibilitySpinButton); 37} 38 39AccessibilitySpinButton::AccessibilitySpinButton() 40 : m_spinButtonElement(0) 41{ 42} 43 44AccessibilitySpinButton::~AccessibilitySpinButton() 45{ 46} 47 48AccessibilityObject* AccessibilitySpinButton::incrementButton() 49{ 50 if (!m_haveChildren) 51 addChildren(); 52 53 ASSERT(m_children.size() == 2); 54 55 return m_children[0].get(); 56} 57 58AccessibilityObject* AccessibilitySpinButton::decrementButton() 59{ 60 if (!m_haveChildren) 61 addChildren(); 62 63 ASSERT(m_children.size() == 2); 64 65 return m_children[1].get(); 66} 67 68LayoutRect AccessibilitySpinButton::elementRect() const 69{ 70 ASSERT(m_spinButtonElement); 71 72 if (!m_spinButtonElement || !m_spinButtonElement->renderer()) 73 return LayoutRect(); 74 75 Vector<FloatQuad> quads; 76 m_spinButtonElement->renderer()->absoluteFocusRingQuads(quads); 77 78 return boundingBoxForQuads(m_spinButtonElement->renderer(), quads); 79} 80 81void AccessibilitySpinButton::addChildren() 82{ 83 m_haveChildren = true; 84 85 AccessibilitySpinButtonPart* incrementor = toAccessibilitySpinButtonPart(axObjectCache()->getOrCreate(SpinButtonPartRole)); 86 incrementor->setIsIncrementor(true); 87 incrementor->setParent(this); 88 m_children.append(incrementor); 89 90 AccessibilitySpinButtonPart* decrementor = toAccessibilitySpinButtonPart(axObjectCache()->getOrCreate(SpinButtonPartRole)); 91 decrementor->setIsIncrementor(false); 92 decrementor->setParent(this); 93 m_children.append(decrementor); 94} 95 96void AccessibilitySpinButton::step(int amount) 97{ 98 ASSERT(m_spinButtonElement); 99 if (!m_spinButtonElement) 100 return; 101 102 m_spinButtonElement->step(amount); 103} 104 105// AccessibilitySpinButtonPart 106 107AccessibilitySpinButtonPart::AccessibilitySpinButtonPart() 108 : m_isIncrementor(false) 109{ 110} 111 112PassRefPtr<AccessibilitySpinButtonPart> AccessibilitySpinButtonPart::create() 113{ 114 return adoptRef(new AccessibilitySpinButtonPart); 115} 116 117LayoutRect AccessibilitySpinButtonPart::elementRect() const 118{ 119 // FIXME: This logic should exist in the render tree or elsewhere, but there is no 120 // relationship that exists that can be queried. 121 122 LayoutRect parentRect = parentObject()->elementRect(); 123 if (m_isIncrementor) 124 parentRect.setHeight(parentRect.height() / 2); 125 else { 126 parentRect.setY(parentRect.y() + parentRect.height() / 2); 127 parentRect.setHeight(parentRect.height() / 2); 128 } 129 130 return parentRect; 131} 132 133bool AccessibilitySpinButtonPart::press() 134{ 135 if (!m_parent || !m_parent->isSpinButton()) 136 return false; 137 138 AccessibilitySpinButton* spinButton = toAccessibilitySpinButton(parentObject()); 139 if (m_isIncrementor) 140 spinButton->step(1); 141 else 142 spinButton->step(-1); 143 144 return true; 145} 146 147} // namespace WebCore 148