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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 "BaseButtonInputType.h"
     34 
     35 #include "HTMLInputElement.h"
     36 #include "KeyboardEvent.h"
     37 #include "RenderButton.h"
     38 
     39 namespace WebCore {
     40 
     41 bool BaseButtonInputType::appendFormData(FormDataList&, bool) const
     42 {
     43     // Buttons except overridden types are never successful.
     44     return false;
     45 }
     46 
     47 void BaseButtonInputType::handleKeydownEvent(KeyboardEvent* event)
     48 {
     49     const String& key = event->keyIdentifier();
     50     if (key == "U+0020") {
     51         element()->setActive(true, true);
     52         // No setDefaultHandled(), because IE dispatches a keypress in this case
     53         // and the caller will only dispatch a keypress if we don't call setDefaultHandled().
     54     }
     55 }
     56 
     57 void BaseButtonInputType::handleKeypressEvent(KeyboardEvent* event)
     58 {
     59     int charCode = event->charCode();
     60     if (charCode == '\r') {
     61         element()->dispatchSimulatedClick(event);
     62         event->setDefaultHandled();
     63         return;
     64     }
     65     if (charCode == ' ') {
     66         // Prevent scrolling down the page.
     67         event->setDefaultHandled();
     68     }
     69 }
     70 
     71 void BaseButtonInputType::handleKeyupEvent(KeyboardEvent* event)
     72 {
     73     const String& key = event->keyIdentifier();
     74     if (key != "U+0020")
     75         return;
     76     // Simulate mouse click for spacebar for button types.
     77     dispatchSimulatedClickIfActive(event);
     78 }
     79 
     80 RenderObject* BaseButtonInputType::createRenderer(RenderArena* arena, RenderStyle*) const
     81 {
     82     return new (arena) RenderButton(element());
     83 }
     84 
     85 // FIXME: Could share this with BaseCheckableInputType and RangeInputType if we had a common base class.
     86 void BaseButtonInputType::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 bool BaseButtonInputType::storesValueSeparateFromAttribute()
     96 {
     97     return false;
     98 }
     99 
    100 } // namespace WebCore
    101