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      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 "core/html/BaseCheckableInputType.h"
     34 
     35 #include "HTMLNames.h"
     36 #include "core/dom/KeyboardEvent.h"
     37 #include "core/html/FormController.h"
     38 #include "core/html/FormDataList.h"
     39 #include "core/html/HTMLInputElement.h"
     40 
     41 namespace WebCore {
     42 
     43 using namespace HTMLNames;
     44 
     45 FormControlState BaseCheckableInputType::saveFormControlState() const
     46 {
     47     return FormControlState(element()->checked() ? "on" : "off");
     48 }
     49 
     50 void BaseCheckableInputType::restoreFormControlState(const FormControlState& state)
     51 {
     52     element()->setChecked(state[0] == "on");
     53 }
     54 
     55 bool BaseCheckableInputType::appendFormData(FormDataList& encoding, bool) const
     56 {
     57     if (!element()->checked())
     58         return false;
     59     encoding.appendData(element()->name(), element()->value());
     60     return true;
     61 }
     62 
     63 void BaseCheckableInputType::handleKeydownEvent(KeyboardEvent* event)
     64 {
     65     const String& key = event->keyIdentifier();
     66     if (key == "U+0020") {
     67         element()->setActive(true, true);
     68         // No setDefaultHandled(), because IE dispatches a keypress in this case
     69         // and the caller will only dispatch a keypress if we don't call setDefaultHandled().
     70     }
     71 }
     72 
     73 void BaseCheckableInputType::handleKeypressEvent(KeyboardEvent* event)
     74 {
     75     if (event->charCode() == ' ') {
     76         // Prevent scrolling down the page.
     77         event->setDefaultHandled();
     78     }
     79 }
     80 
     81 bool BaseCheckableInputType::canSetStringValue() const
     82 {
     83     return false;
     84 }
     85 
     86 // FIXME: Could share this with BaseClickableWithKeyInputType and RangeInputType if we had a common base class.
     87 void BaseCheckableInputType::accessKeyAction(bool sendMouseEvents)
     88 {
     89     InputType::accessKeyAction(sendMouseEvents);
     90 
     91     element()->dispatchSimulatedClick(0, sendMouseEvents ? SendMouseUpDownEvents : SendNoEvents);
     92 }
     93 
     94 String BaseCheckableInputType::fallbackValue() const
     95 {
     96     return "on";
     97 }
     98 
     99 bool BaseCheckableInputType::storesValueSeparateFromAttribute()
    100 {
    101     return false;
    102 }
    103 
    104 void BaseCheckableInputType::setValue(const String& sanitizedValue, bool, TextFieldEventBehavior)
    105 {
    106     element()->setAttribute(valueAttr, sanitizedValue);
    107 }
    108 
    109 bool BaseCheckableInputType::isCheckable()
    110 {
    111     return true;
    112 }
    113 
    114 } // namespace WebCore
    115