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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/BaseButtonInputType.h"
     34 
     35 #include "HTMLNames.h"
     36 #include "core/dom/Text.h"
     37 #include "core/dom/shadow/ShadowRoot.h"
     38 #include "core/html/HTMLInputElement.h"
     39 #include "core/rendering/RenderButton.h"
     40 #include "core/rendering/RenderTextFragment.h"
     41 
     42 namespace WebCore {
     43 
     44 using namespace HTMLNames;
     45 
     46 class NonSelectableText : public Text {
     47     inline NonSelectableText(Document* document, const String& data)
     48         : Text(document, data, CreateText)
     49     {
     50     }
     51 
     52     virtual RenderText* createTextRenderer(RenderStyle*) OVERRIDE
     53     {
     54         return new RenderTextFragment(this, dataImpl());
     55     }
     56 
     57 public:
     58     static inline PassRefPtr<NonSelectableText> create(Document* document, const String& data)
     59     {
     60         return adoptRef(new NonSelectableText(document, data));
     61     }
     62 };
     63 
     64 // ----------------------------
     65 
     66 void BaseButtonInputType::createShadowSubtree()
     67 {
     68     ASSERT(element()->userAgentShadowRoot());
     69     RefPtr<Text> text = NonSelectableText::create(element()->document(), element()->valueWithDefault());
     70     element()->userAgentShadowRoot()->appendChild(text);
     71 }
     72 
     73 void BaseButtonInputType::valueAttributeChanged()
     74 {
     75     toText(element()->userAgentShadowRoot()->firstChild())->setData(element()->valueWithDefault());
     76 }
     77 
     78 bool BaseButtonInputType::shouldSaveAndRestoreFormControlState() const
     79 {
     80     return false;
     81 }
     82 
     83 bool BaseButtonInputType::appendFormData(FormDataList&, bool) const
     84 {
     85     // Buttons except overridden types are never successful.
     86     return false;
     87 }
     88 
     89 RenderObject* BaseButtonInputType::createRenderer(RenderStyle*) const
     90 {
     91     return new RenderButton(element());
     92 }
     93 
     94 bool BaseButtonInputType::storesValueSeparateFromAttribute()
     95 {
     96     return false;
     97 }
     98 
     99 void BaseButtonInputType::setValue(const String& sanitizedValue, bool, TextFieldEventBehavior)
    100 {
    101     element()->setAttribute(valueAttr, sanitizedValue);
    102 }
    103 
    104 } // namespace WebCore
    105