Source/WebKit/chromium/src/TextFieldDecoratorImpl.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * in the documentation and/or other materials provided with the
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 *
 * 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
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#include "config.h"
#include "TextFieldDecoratorImpl.h"

#include "WebInputElement.h"
#include "WebTextFieldDecoratorClient.h"
#include "core/html/HTMLInputElement.h"
#include "core/loader/cache/CachedImage.h"
#include "core/platform/graphics/Image.h"

namespace WebKit {

using namespace WebCore;

inline TextFieldDecoratorImpl::TextFieldDecoratorImpl(WebTextFieldDecoratorClient* client)
    : m_client(client)
{
    ASSERT(client);
}

PassOwnPtr<TextFieldDecoratorImpl> TextFieldDecoratorImpl::create(WebTextFieldDecoratorClient* client)
{
    return adoptPtr(new TextFieldDecoratorImpl(client));
}

TextFieldDecoratorImpl::~TextFieldDecoratorImpl()
{
}

WebTextFieldDecoratorClient* TextFieldDecoratorImpl::decoratorClient()
{
    return m_client;
}

bool TextFieldDecoratorImpl::willAddDecorationTo(HTMLInputElement* input)
{
    ASSERT(input);
    return m_client->shouldAddDecorationTo(WebInputElement(input));
}

bool TextFieldDecoratorImpl::visibleByDefault()
{
    return m_client->visibleByDefault();
}

CachedImage* TextFieldDecoratorImpl::imageForNormalState()
{
    if (!m_cachedImageForNormalState) {
        WebCString imageName = m_client->imageNameForNormalState();
        ASSERT(!imageName.isEmpty());
        RefPtr<Image> image = Image::loadPlatformResource(imageName.data());
        m_cachedImageForNormalState = new CachedImage(image.get());
        // The CachedImage owns a RefPtr to the Image.
    }
    return m_cachedImageForNormalState.get();
}

CachedImage* TextFieldDecoratorImpl::imageForDisabledState()
{
    if (!m_cachedImageForDisabledState) {
        WebCString imageName = m_client->imageNameForDisabledState();
        if (imageName.isEmpty())
            m_cachedImageForDisabledState = imageForNormalState();
        else {
            RefPtr<Image> image = Image::loadPlatformResource(imageName.data());
            m_cachedImageForDisabledState = new CachedImage(image.get());
        }
    }
    return m_cachedImageForDisabledState.get();
}

CachedImage* TextFieldDecoratorImpl::imageForReadonlyState()
{
    if (!m_cachedImageForReadonlyState) {
        WebCString imageName = m_client->imageNameForReadOnlyState();
        if (imageName.isEmpty())
            m_cachedImageForReadonlyState = imageForDisabledState();
        else {
            RefPtr<Image> image = Image::loadPlatformResource(imageName.data());
            m_cachedImageForReadonlyState = new CachedImage(image.get());
        }
    }
    return m_cachedImageForReadonlyState.get();
}

CachedImage* TextFieldDecoratorImpl::imageForHoverState()
{
    if (!m_cachedImageForHoverState) {
        WebCString imageName = m_client->imageNameForHoverState();
        if (imageName.isEmpty())
            m_cachedImageForHoverState = imageForNormalState();
        else {
            RefPtr<Image> image = Image::loadPlatformResource(imageName.data());
            m_cachedImageForHoverState = new CachedImage(image.get());
        }
    }
    return m_cachedImageForHoverState.get();
}

void TextFieldDecoratorImpl::handleClick(HTMLInputElement* input)
{
    ASSERT(input);
    WebInputElement webInput(input);
    m_client->handleClick(webInput);
}

void TextFieldDecoratorImpl::willDetach(HTMLInputElement* input)
{
    ASSERT(input);
    WebInputElement webInput(input);
    m_client->willDetach(webInput);
}

}