1 /*
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
3 * Copyright (C) 2010 Google Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22 #include "config.h"
23 #include "ImageInputType.h"
24
25 #include "FormDataList.h"
26 #include "HTMLFormElement.h"
27 #include "HTMLImageLoader.h"
28 #include "HTMLInputElement.h"
29 #include "MouseEvent.h"
30 #include "RenderImage.h"
31 #include <wtf/PassOwnPtr.h>
32
33 namespace WebCore {
34
ImageInputType(HTMLInputElement * element)35 inline ImageInputType::ImageInputType(HTMLInputElement* element)
36 : BaseButtonInputType(element)
37 {
38 }
39
create(HTMLInputElement * element)40 PassOwnPtr<InputType> ImageInputType::create(HTMLInputElement* element)
41 {
42 return adoptPtr(new ImageInputType(element));
43 }
44
formControlType() const45 const AtomicString& ImageInputType::formControlType() const
46 {
47 return InputTypeNames::image();
48 }
49
isFormDataAppendable() const50 bool ImageInputType::isFormDataAppendable() const
51 {
52 return true;
53 }
54
appendFormData(FormDataList & encoding,bool) const55 bool ImageInputType::appendFormData(FormDataList& encoding, bool) const
56 {
57 if (!element()->isActivatedSubmit())
58 return false;
59 const AtomicString& name = element()->name();
60 encoding.appendData(name.isEmpty() ? "x" : (name + ".x"), m_clickLocation.x());
61 encoding.appendData(name.isEmpty() ? "y" : (name + ".y"), m_clickLocation.y());
62 if (!name.isEmpty() && !element()->value().isEmpty())
63 encoding.appendData(name, element()->value());
64 return true;
65 }
66
supportsValidation() const67 bool ImageInputType::supportsValidation() const
68 {
69 return false;
70 }
71
handleDOMActivateEvent(Event * event)72 void ImageInputType::handleDOMActivateEvent(Event* event)
73 {
74 RefPtr<HTMLInputElement> element = this->element();
75 if (element->disabled() || !element->form())
76 return;
77 element->setActivatedSubmit(true);
78 if (event->underlyingEvent() && event->underlyingEvent()->isMouseEvent()) {
79 MouseEvent* mouseEvent = static_cast<MouseEvent*>(event->underlyingEvent());
80 m_clickLocation = IntPoint(mouseEvent->offsetX(), mouseEvent->offsetY());
81 } else
82 m_clickLocation = IntPoint();
83 element->form()->prepareForSubmission(event); // Event handlers can run.
84 element->setActivatedSubmit(false);
85 event->setDefaultHandled();
86 }
87
createRenderer(RenderArena * arena,RenderStyle *) const88 RenderObject* ImageInputType::createRenderer(RenderArena* arena, RenderStyle*) const
89 {
90 RenderImage* image = new (arena) RenderImage(element());
91 image->setImageResource(RenderImageResource::create());
92 return image;
93 }
94
altAttributeChanged()95 void ImageInputType::altAttributeChanged()
96 {
97 RenderImage* image = toRenderImage(element()->renderer());
98 if (!image)
99 return;
100 image->updateAltText();
101 }
102
srcAttributeChanged()103 void ImageInputType::srcAttributeChanged()
104 {
105 if (!element()->renderer())
106 return;
107 if (!m_imageLoader)
108 m_imageLoader = adoptPtr(new HTMLImageLoader(element()));
109 m_imageLoader->updateFromElementIgnoringPreviousError();
110 }
111
attach()112 void ImageInputType::attach()
113 {
114 BaseButtonInputType::attach();
115
116 if (!m_imageLoader)
117 m_imageLoader = adoptPtr(new HTMLImageLoader(element()));
118 m_imageLoader->updateFromElement();
119
120 RenderImage* renderer = toRenderImage(element()->renderer());
121 if (!renderer)
122 return;
123
124 if (!m_imageLoader->haveFiredBeforeLoadEvent())
125 return;
126
127 RenderImageResource* imageResource = renderer->imageResource();
128 imageResource->setCachedImage(m_imageLoader->image());
129
130 // If we have no image at all because we have no src attribute, set
131 // image height and width for the alt text instead.
132 if (!m_imageLoader->image() && !imageResource->cachedImage())
133 renderer->setImageSizeForAltText();
134 }
135
willMoveToNewOwnerDocument()136 void ImageInputType::willMoveToNewOwnerDocument()
137 {
138 BaseButtonInputType::willMoveToNewOwnerDocument();
139 if (m_imageLoader)
140 m_imageLoader->elementWillMoveToNewOwnerDocument();
141 }
142
shouldRespectAlignAttribute()143 bool ImageInputType::shouldRespectAlignAttribute()
144 {
145 return true;
146 }
147
canBeSuccessfulSubmitButton()148 bool ImageInputType::canBeSuccessfulSubmitButton()
149 {
150 return true;
151 }
152
isImageButton() const153 bool ImageInputType::isImageButton() const
154 {
155 return true;
156 }
157
isEnumeratable()158 bool ImageInputType::isEnumeratable()
159 {
160 return false;
161 }
162
shouldRespectHeightAndWidthAttributes()163 bool ImageInputType::shouldRespectHeightAndWidthAttributes()
164 {
165 return true;
166 }
167
168 } // namespace WebCore
169