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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "ColorInputType.h"
     33 
     34 #include "Color.h"
     35 #include "HTMLInputElement.h"
     36 #include <wtf/PassOwnPtr.h>
     37 #include <wtf/text/WTFString.h>
     38 
     39 namespace WebCore {
     40 
     41 static bool isValidColorString(const String& value)
     42 {
     43     if (value.isEmpty())
     44         return false;
     45     if (value[0] != '#')
     46         return false;
     47 
     48     // We don't accept #rgb and #aarrggbb formats.
     49     if (value.length() != 7)
     50         return false;
     51     Color color(value);
     52     return color.isValid() && !color.hasAlpha();
     53 }
     54 
     55 PassOwnPtr<InputType> ColorInputType::create(HTMLInputElement* element)
     56 {
     57     return adoptPtr(new ColorInputType(element));
     58 }
     59 
     60 const AtomicString& ColorInputType::formControlType() const
     61 {
     62     return InputTypeNames::color();
     63 }
     64 
     65 bool ColorInputType::typeMismatchFor(const String& value) const
     66 {
     67     // FIXME: Should not accept an empty value. Remove it when we implement value
     68     // sanitization for type=color.
     69     if (value.isEmpty())
     70         return false;
     71     return !isValidColorString(value);
     72 }
     73 
     74 bool ColorInputType::typeMismatch() const
     75 {
     76     // FIXME: Should return false. We don't implement value sanitization for
     77     // type=color yet.
     78     String value = element()->value();
     79     return !value.isEmpty() && !isValidColorString(value);
     80 }
     81 
     82 bool ColorInputType::supportsRequired() const
     83 {
     84     return false;
     85 }
     86 
     87 } // namespace WebCore
     88