Source/bindings/v8/custom/V8CanvasRenderingContext2DCustom.cpp

/*
 * 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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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "V8CanvasRenderingContext2D.h"

#include "V8CanvasGradient.h"
#include "V8CanvasPattern.h"
#include "V8HTMLCanvasElement.h"
#include "V8HTMLImageElement.h"
#include "V8HTMLVideoElement.h"
#include "V8ImageData.h"
#include "bindings/v8/V8Binding.h"
#include "core/html/canvas/CanvasGradient.h"
#include "core/html/canvas/CanvasPattern.h"
#include "core/html/canvas/CanvasRenderingContext2D.h"
#include "core/html/canvas/CanvasStyle.h"
#include "core/platform/graphics/FloatRect.h"

namespace WebCore {

static v8::Handle<v8::Value> toV8Object(CanvasStyle* style, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
    if (style->canvasGradient())
        return toV8(style->canvasGradient(), creationContext, isolate);

    if (style->canvasPattern())
        return toV8(style->canvasPattern(), creationContext, isolate);

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

static PassRefPtr<CanvasStyle> toCanvasStyle(v8::Handle<v8::Value> value, v8::Isolate* isolate)
{
    if (V8CanvasGradient::HasInstance(value, isolate, worldType(isolate)))
        return CanvasStyle::createFromGradient(V8CanvasGradient::toNative(v8::Handle<v8::Object>::Cast(value)));

    if (V8CanvasPattern::HasInstance(value, isolate, worldType(isolate)))
        return CanvasStyle::createFromPattern(V8CanvasPattern::toNative(v8::Handle<v8::Object>::Cast(value)));

    return 0;
}

void V8CanvasRenderingContext2D::strokeStyleAttributeGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
{
    CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
    v8SetReturnValue(info, toV8Object(impl->strokeStyle(), info.Holder(), info.GetIsolate()));
}

void V8CanvasRenderingContext2D::strokeStyleAttributeSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
    CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
    if (value->IsString())
        impl->setStrokeColor(toWebCoreString(value.As<v8::String>()));
    else
        impl->setStrokeStyle(toCanvasStyle(value, info.GetIsolate()));
}

void V8CanvasRenderingContext2D::fillStyleAttributeGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
{
    CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
    v8SetReturnValue(info, toV8Object(impl->fillStyle(), info.Holder(), info.GetIsolate()));
}

void V8CanvasRenderingContext2D::fillStyleAttributeSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
    CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
    if (value->IsString())
        impl->setFillColor(toWebCoreString(value.As<v8::String>()));
    else
        impl->setFillStyle(toCanvasStyle(value, info.GetIsolate()));
}

} // namespace WebCore