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