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 "core/accessibility/AXSpinButton.h"
28
29 #include "core/accessibility/AXObjectCache.h"
30 #include "core/rendering/RenderObject.h"
31
32 namespace blink {
33
create()34 PassRefPtr<AXSpinButton> AXSpinButton::create()
35 {
36 return adoptRef(new AXSpinButton);
37 }
38
AXSpinButton()39 AXSpinButton::AXSpinButton()
40 : m_spinButtonElement(0)
41 {
42 }
43
~AXSpinButton()44 AXSpinButton::~AXSpinButton()
45 {
46 }
47
elementRect() const48 LayoutRect AXSpinButton::elementRect() const
49 {
50 ASSERT(m_spinButtonElement);
51
52 if (!m_spinButtonElement || !m_spinButtonElement->renderer())
53 return LayoutRect();
54
55 return m_spinButtonElement->renderer()->absoluteFocusRingBoundingBoxRect();
56 }
57
addChildren()58 void AXSpinButton::addChildren()
59 {
60 m_haveChildren = true;
61
62 AXSpinButtonPart* incrementor = toAXSpinButtonPart(axObjectCache()->getOrCreate(SpinButtonPartRole));
63 incrementor->setIsIncrementor(true);
64 incrementor->setParent(this);
65 m_children.append(incrementor);
66
67 AXSpinButtonPart* decrementor = toAXSpinButtonPart(axObjectCache()->getOrCreate(SpinButtonPartRole));
68 decrementor->setIsIncrementor(false);
69 decrementor->setParent(this);
70 m_children.append(decrementor);
71 }
72
step(int amount)73 void AXSpinButton::step(int amount)
74 {
75 ASSERT(m_spinButtonElement);
76 if (!m_spinButtonElement)
77 return;
78
79 m_spinButtonElement->step(amount);
80 }
81
82 // AXSpinButtonPart
83
AXSpinButtonPart()84 AXSpinButtonPart::AXSpinButtonPart()
85 : m_isIncrementor(false)
86 {
87 }
88
create()89 PassRefPtr<AXSpinButtonPart> AXSpinButtonPart::create()
90 {
91 return adoptRef(new AXSpinButtonPart);
92 }
93
elementRect() const94 LayoutRect AXSpinButtonPart::elementRect() const
95 {
96 // FIXME: This logic should exist in the render tree or elsewhere, but there is no
97 // relationship that exists that can be queried.
98
99 LayoutRect parentRect = parentObject()->elementRect();
100 if (m_isIncrementor) {
101 parentRect.setHeight(parentRect.height() / 2);
102 } else {
103 parentRect.setY(parentRect.y() + parentRect.height() / 2);
104 parentRect.setHeight(parentRect.height() / 2);
105 }
106
107 return parentRect;
108 }
109
press() const110 bool AXSpinButtonPart::press() const
111 {
112 if (!m_parent || !m_parent->isSpinButton())
113 return false;
114
115 AXSpinButton* spinButton = toAXSpinButton(parentObject());
116 if (m_isIncrementor)
117 spinButton->step(1);
118 else
119 spinButton->step(-1);
120
121 return true;
122 }
123
124 } // namespace blink
125