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 #include "config.h"
32 #include "core/html/forms/SearchInputType.h"
33
34 #include "bindings/v8/ExceptionStatePlaceholder.h"
35 #include "core/HTMLNames.h"
36 #include "core/InputTypeNames.h"
37 #include "core/events/KeyboardEvent.h"
38 #include "core/dom/shadow/ShadowRoot.h"
39 #include "core/html/HTMLInputElement.h"
40 #include "core/html/shadow/ShadowElementNames.h"
41 #include "core/html/shadow/TextControlInnerElements.h"
42 #include "core/rendering/RenderSearchField.h"
43 #include "wtf/PassOwnPtr.h"
44
45 namespace WebCore {
46
47 using namespace HTMLNames;
48
SearchInputType(HTMLInputElement & element)49 inline SearchInputType::SearchInputType(HTMLInputElement& element)
50 : BaseTextInputType(element)
51 , m_searchEventTimer(this, &SearchInputType::searchEventTimerFired)
52 {
53 }
54
create(HTMLInputElement & element)55 PassRefPtrWillBeRawPtr<InputType> SearchInputType::create(HTMLInputElement& element)
56 {
57 return adoptRefWillBeNoop(new SearchInputType(element));
58 }
59
countUsage()60 void SearchInputType::countUsage()
61 {
62 countUsageIfVisible(UseCounter::InputTypeSearch);
63 }
64
createRenderer(RenderStyle *) const65 RenderObject* SearchInputType::createRenderer(RenderStyle*) const
66 {
67 return new RenderSearchField(&element());
68 }
69
formControlType() const70 const AtomicString& SearchInputType::formControlType() const
71 {
72 return InputTypeNames::search;
73 }
74
shouldRespectSpeechAttribute()75 bool SearchInputType::shouldRespectSpeechAttribute()
76 {
77 return true;
78 }
79
isSearchField() const80 bool SearchInputType::isSearchField() const
81 {
82 return true;
83 }
84
needsContainer() const85 bool SearchInputType::needsContainer() const
86 {
87 return true;
88 }
89
createShadowSubtree()90 void SearchInputType::createShadowSubtree()
91 {
92 TextFieldInputType::createShadowSubtree();
93 Element* container = containerElement();
94 Element* viewPort = element().userAgentShadowRoot()->getElementById(ShadowElementNames::editingViewPort());
95 ASSERT(container);
96 ASSERT(viewPort);
97
98 container->insertBefore(SearchFieldDecorationElement::create(element().document()), viewPort);
99 container->insertBefore(SearchFieldCancelButtonElement::create(element().document()), viewPort->nextSibling());
100 }
101
handleKeydownEvent(KeyboardEvent * event)102 void SearchInputType::handleKeydownEvent(KeyboardEvent* event)
103 {
104 if (element().isDisabledOrReadOnly()) {
105 TextFieldInputType::handleKeydownEvent(event);
106 return;
107 }
108
109 const String& key = event->keyIdentifier();
110 if (key == "U+001B") {
111 RefPtrWillBeRawPtr<HTMLInputElement> input(element());
112 input->setValueForUser("");
113 input->onSearch();
114 event->setDefaultHandled();
115 return;
116 }
117 TextFieldInputType::handleKeydownEvent(event);
118 }
119
startSearchEventTimer()120 void SearchInputType::startSearchEventTimer()
121 {
122 ASSERT(element().renderer());
123 unsigned length = element().innerEditorValue().length();
124
125 if (!length) {
126 stopSearchEventTimer();
127 element().onSearch();
128 return;
129 }
130
131 // After typing the first key, we wait 0.5 seconds.
132 // After the second key, 0.4 seconds, then 0.3, then 0.2 from then on.
133 m_searchEventTimer.startOneShot(max(0.2, 0.6 - 0.1 * length), FROM_HERE);
134 }
135
stopSearchEventTimer()136 void SearchInputType::stopSearchEventTimer()
137 {
138 m_searchEventTimer.stop();
139 }
140
searchEventTimerFired(Timer<SearchInputType> *)141 void SearchInputType::searchEventTimerFired(Timer<SearchInputType>*)
142 {
143 element().onSearch();
144 }
145
searchEventsShouldBeDispatched() const146 bool SearchInputType::searchEventsShouldBeDispatched() const
147 {
148 return element().hasAttribute(incrementalAttr);
149 }
150
didSetValueByUserEdit(ValueChangeState state)151 void SearchInputType::didSetValueByUserEdit(ValueChangeState state)
152 {
153 updateCancelButtonVisibility();
154
155 // If the incremental attribute is set, then dispatch the search event
156 if (searchEventsShouldBeDispatched())
157 startSearchEventTimer();
158
159 TextFieldInputType::didSetValueByUserEdit(state);
160 }
161
updateView()162 void SearchInputType::updateView()
163 {
164 BaseTextInputType::updateView();
165 updateCancelButtonVisibility();
166 }
167
updateCancelButtonVisibility()168 void SearchInputType::updateCancelButtonVisibility()
169 {
170 Element* button = element().userAgentShadowRoot()->getElementById(ShadowElementNames::clearButton());
171 if (!button)
172 return;
173 if (element().value().isEmpty()) {
174 button->setInlineStyleProperty(CSSPropertyOpacity, 0.0, CSSPrimitiveValue::CSS_NUMBER);
175 button->setInlineStyleProperty(CSSPropertyPointerEvents, CSSValueNone);
176 } else {
177 button->removeInlineStyleProperty(CSSPropertyOpacity);
178 button->removeInlineStyleProperty(CSSPropertyPointerEvents);
179 }
180 }
181
supportsInputModeAttribute() const182 bool SearchInputType::supportsInputModeAttribute() const
183 {
184 return true;
185 }
186
187 } // namespace WebCore
188