v8canvasrenderingcontext2dcustom.cpp

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2009 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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#include "config.h"
#include "CanvasRenderingContext2D.h"

#include "CanvasGradient.h"
#include "CanvasPattern.h"
#include "CanvasStyle.h"

#include "V8Binding.h"
#include "V8CanvasGradient.h"
#include "V8CanvasPattern.h"
#include "V8CustomBinding.h"
#include "V8Proxy.h"

namespace WebCore {

static v8::Handle<v8::Value> toV8(CanvasStyle* style)
{
    if (style->canvasGradient())
        return V8Proxy::ToV8Object(V8ClassIndex::CANVASGRADIENT, style->canvasGradient());

    if (style->canvasPattern())
        return V8Proxy::ToV8Object(V8ClassIndex::CANVASPATTERN, style->canvasPattern());

    return v8String(style->color());
}

static PassRefPtr<CanvasStyle> toCanvasStyle(v8::Handle<v8::Value> value)
{
    if (value->IsString())
        return CanvasStyle::create(toWebCoreString(value));

    if (V8CanvasGradient::HasInstance(value))
        return CanvasStyle::create(V8Proxy::DOMWrapperToNative<CanvasGradient>(value));

    if (V8CanvasPattern::HasInstance(value))
        return CanvasStyle::create(V8Proxy::DOMWrapperToNative<CanvasPattern>(value));

    return 0;
}

ACCESSOR_GETTER(CanvasRenderingContext2DStrokeStyle)
{
    CanvasRenderingContext2D* impl = V8Proxy::DOMWrapperToNative<CanvasRenderingContext2D>(info.Holder());
    return toV8(impl->strokeStyle());
}

ACCESSOR_SETTER(CanvasRenderingContext2DStrokeStyle)
{
    CanvasRenderingContext2D* impl = V8Proxy::DOMWrapperToNative<CanvasRenderingContext2D>(info.Holder());
    impl->setStrokeStyle(toCanvasStyle(value));
}

ACCESSOR_GETTER(CanvasRenderingContext2DFillStyle)
{
    CanvasRenderingContext2D* impl = V8Proxy::DOMWrapperToNative<CanvasRenderingContext2D>(info.Holder());
    return toV8(impl->fillStyle());
}

ACCESSOR_SETTER(CanvasRenderingContext2DFillStyle)
{
    CanvasRenderingContext2D* impl = V8Proxy::DOMWrapperToNative<CanvasRenderingContext2D>(info.Holder());
    impl->setFillStyle(toCanvasStyle(value));
}

} // namespace WebCore