1/*
2 * Copyright (C) 2004, 2005, 2006, 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 COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "Widget.h"
28
29#include "IntRect.h"
30#include "ScrollView.h"
31
32#include <wtf/Assertions.h>
33
34namespace WebCore {
35
36void Widget::init(PlatformWidget widget)
37{
38    m_parent = 0;
39    m_selfVisible = false;
40    m_parentVisible = false;
41    m_widget = widget;
42    if (m_widget)
43        retainPlatformWidget();
44}
45
46void Widget::setParent(ScrollView* view)
47{
48    ASSERT(!view || !m_parent);
49    if (!view || !view->isVisible())
50        setParentVisible(false);
51    m_parent = view;
52    if (view && view->isVisible())
53        setParentVisible(true);
54}
55
56ScrollView* Widget::root() const
57{
58    const Widget* top = this;
59    while (top->parent())
60        top = top->parent();
61    if (top->isFrameView())
62        return const_cast<ScrollView*>(static_cast<const ScrollView*>(top));
63    return 0;
64}
65
66void Widget::removeFromParent()
67{
68    if (parent())
69        parent()->removeChild(this);
70}
71
72IntRect Widget::convertFromContainingWindow(const IntRect& windowRect) const
73{
74    if (const ScrollView* parentScrollView = parent()) {
75        IntRect parentRect = parentScrollView->convertFromContainingWindow(windowRect);
76        return convertFromContainingView(parentRect);
77    }
78    return convertFromContainingWindowToRoot(this, windowRect);
79}
80
81IntRect Widget::convertToContainingWindow(const IntRect& localRect) const
82{
83    if (const ScrollView* parentScrollView = parent()) {
84        IntRect parentRect = convertToContainingView(localRect);
85        return parentScrollView->convertToContainingWindow(parentRect);
86    }
87    return convertFromRootToContainingWindow(this, localRect);
88}
89
90IntPoint Widget::convertFromContainingWindow(const IntPoint& windowPoint) const
91{
92    if (const ScrollView* parentScrollView = parent()) {
93        IntPoint parentPoint = parentScrollView->convertFromContainingWindow(windowPoint);
94        return convertFromContainingView(parentPoint);
95    }
96    return convertFromContainingWindowToRoot(this, windowPoint);
97}
98
99IntPoint Widget::convertToContainingWindow(const IntPoint& localPoint) const
100{
101    if (const ScrollView* parentScrollView = parent()) {
102        IntPoint parentPoint = convertToContainingView(localPoint);
103        return parentScrollView->convertToContainingWindow(parentPoint);
104    }
105    return convertFromRootToContainingWindow(this, localPoint);
106}
107
108#if !PLATFORM(MAC)
109void Widget::setBoundsSize(const IntSize&)
110{
111}
112
113IntRect Widget::convertFromRootToContainingWindow(const Widget*, const IntRect& rect)
114{
115    return rect;
116}
117
118IntRect Widget::convertFromContainingWindowToRoot(const Widget*, const IntRect& rect)
119{
120    return rect;
121}
122
123IntPoint Widget::convertFromRootToContainingWindow(const Widget*, const IntPoint& point)
124{
125    return point;
126}
127
128IntPoint Widget::convertFromContainingWindowToRoot(const Widget*, const IntPoint& point)
129{
130    return point;
131}
132#endif
133
134IntRect Widget::convertToContainingView(const IntRect& localRect) const
135{
136    if (const ScrollView* parentScrollView = parent()) {
137        IntRect parentRect(localRect);
138        parentRect.setLocation(parentScrollView->convertChildToSelf(this, localRect.location()));
139        return parentRect;
140    }
141    return localRect;
142}
143
144IntRect Widget::convertFromContainingView(const IntRect& parentRect) const
145{
146    if (const ScrollView* parentScrollView = parent()) {
147        IntRect localRect = parentRect;
148        localRect.setLocation(parentScrollView->convertSelfToChild(this, localRect.location()));
149        return localRect;
150    }
151
152    return parentRect;
153}
154
155IntPoint Widget::convertToContainingView(const IntPoint& localPoint) const
156{
157    if (const ScrollView* parentScrollView = parent())
158        return parentScrollView->convertChildToSelf(this, localPoint);
159
160    return localPoint;
161}
162
163IntPoint Widget::convertFromContainingView(const IntPoint& parentPoint) const
164{
165    if (const ScrollView* parentScrollView = parent())
166        return parentScrollView->convertSelfToChild(this, parentPoint);
167
168    return parentPoint;
169}
170
171#if !PLATFORM(EFL)
172void Widget::frameRectsChanged()
173{
174}
175#endif
176
177} // namespace WebCore
178