root/Source/core/html/forms/PasswordInputType.cpp

DEFINITIONS

1. create
2. countUsage
3. isPasswordGenerationEnabled
4. isPasswordGenerationDecorationEnabled
5. needsContainer
6. createShadowSubtree
7. formControlType
8. shouldSaveAndRestoreFormControlState
9. saveFormControlState
10. restoreFormControlState
11. shouldUseInputMethod
12. shouldRespectListAttribute
13. shouldRespectSpeechAttribute
14. isPasswordField
15. enableSecureTextInput
16. disableSecureTextInput

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 * Copyright (C) 2011 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "core/html/forms/PasswordInputType.h"

#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "InputTypeNames.h"
#include "core/dom/shadow/ShadowRoot.h"
#include "core/frame/FrameHost.h"
#include "core/frame/Settings.h"
#include "core/html/HTMLInputElement.h"
#include "core/html/forms/FormController.h"
#include "core/page/Chrome.h"
#include "core/page/ChromeClient.h"
#include "wtf/Assertions.h"
#include "wtf/PassOwnPtr.h"

namespace WebCore {

PassRefPtr<InputType> PasswordInputType::create(HTMLInputElement& element)
{
    return adoptRef(new PasswordInputType(element));
}

void PasswordInputType::countUsage()
{
    countUsageIfVisible(UseCounter::InputTypePassword);
    if (element().fastHasAttribute(HTMLNames::maxlengthAttr))
        countUsageIfVisible(UseCounter::InputTypePasswordMaxLength);
}

bool PasswordInputType::isPasswordGenerationEnabled() const
{
    if (isPasswordGenerationDecorationEnabled())
        return true;
    if (FrameHost* host = element().document().frameHost())
        return host->chrome().client().isPasswordGenerationEnabled();
    return false;
}

bool PasswordInputType::isPasswordGenerationDecorationEnabled() const
{
    if (Settings* settings = element().document().settings())
        return settings->passwordGenerationDecorationEnabled();
    return false;
}

bool PasswordInputType::needsContainer() const
{
    return BaseTextInputType::needsContainer() || isPasswordGenerationEnabled();
}

void PasswordInputType::createShadowSubtree()
{
    BaseTextInputType::createShadowSubtree();
    if (!isPasswordGenerationEnabled())
        return;
    RefPtr<PasswordGeneratorButtonElement> generatorButton = PasswordGeneratorButtonElement::create(element().document());
    if (!isPasswordGenerationDecorationEnabled())
        generatorButton->setInlineStyleProperty(CSSPropertyDisplay, CSSValueNone);
    containerElement()->appendChild(generatorButton.release());
}

const AtomicString& PasswordInputType::formControlType() const
{
    return InputTypeNames::password;
}

bool PasswordInputType::shouldSaveAndRestoreFormControlState() const
{
    return false;
}

FormControlState PasswordInputType::saveFormControlState() const
{
    // Should never save/restore password fields.
    ASSERT_NOT_REACHED();
    return FormControlState();
}

void PasswordInputType::restoreFormControlState(const FormControlState&)
{
    // Should never save/restore password fields.
    ASSERT_NOT_REACHED();
}

bool PasswordInputType::shouldUseInputMethod() const
{
    // Input methods are disabled for the password field because otherwise
    // anyone can access the underlying password and display it in clear text.
    return false;
}

bool PasswordInputType::shouldRespectListAttribute()
{
    return false;
}

bool PasswordInputType::shouldRespectSpeechAttribute()
{
    return true;
}

bool PasswordInputType::isPasswordField() const
{
    return true;
}

void PasswordInputType::enableSecureTextInput()
{
    if (element().document().frame())
        element().document().setUseSecureKeyboardEntryWhenActive(true);
}

void PasswordInputType::disableSecureTextInput()
{
    if (element().document().frame())
        element().document().setUseSecureKeyboardEntryWhenActive(false);
}

} // namespace WebCore