1 /*
2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 * Copyright (C) 2011 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 * * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "config.h"
33 #include "CheckboxInputType.h"
34
35 #include "HTMLInputElement.h"
36 #include "KeyboardEvent.h"
37 #include "LocalizedStrings.h"
38 #include <wtf/PassOwnPtr.h>
39
40 namespace WebCore {
41
create(HTMLInputElement * element)42 PassOwnPtr<InputType> CheckboxInputType::create(HTMLInputElement* element)
43 {
44 return adoptPtr(new CheckboxInputType(element));
45 }
46
formControlType() const47 const AtomicString& CheckboxInputType::formControlType() const
48 {
49 return InputTypeNames::checkbox();
50 }
51
valueMissing(const String &) const52 bool CheckboxInputType::valueMissing(const String&) const
53 {
54 return !element()->checked();
55 }
56
valueMissingText() const57 String CheckboxInputType::valueMissingText() const
58 {
59 return validationMessageValueMissingForCheckboxText();
60 }
61
handleKeyupEvent(KeyboardEvent * event)62 void CheckboxInputType::handleKeyupEvent(KeyboardEvent* event)
63 {
64 const String& key = event->keyIdentifier();
65 if (key != "U+0020")
66 return;
67 dispatchSimulatedClickIfActive(event);
68 }
69
willDispatchClick()70 PassOwnPtr<ClickHandlingState> CheckboxInputType::willDispatchClick()
71 {
72 // An event handler can use preventDefault or "return false" to reverse the checking we do here.
73 // The ClickHandlingState object contains what we need to undo what we did here in didDispatchClick.
74
75 OwnPtr<ClickHandlingState> state = adoptPtr(new ClickHandlingState);
76
77 state->checked = element()->checked();
78 state->indeterminate = element()->indeterminate();
79
80 if (state->indeterminate)
81 element()->setIndeterminate(false);
82 else
83 element()->setChecked(!state->checked, true);
84
85 return state.release();
86 }
87
didDispatchClick(Event * event,const ClickHandlingState & state)88 void CheckboxInputType::didDispatchClick(Event* event, const ClickHandlingState& state)
89 {
90 if (event->defaultPrevented() || event->defaultHandled()) {
91 element()->setIndeterminate(state.indeterminate);
92 element()->setChecked(state.checked);
93 }
94
95 // The work we did in willDispatchClick was default handling.
96 event->setDefaultHandled();
97 }
98
isCheckbox() const99 bool CheckboxInputType::isCheckbox() const
100 {
101 return true;
102 }
103
104 } // namespace WebCore
105