diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,442 @@
+/*
+ * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "JSCanvasRenderingContext2D.h"
+
+#include "CanvasGradient.h"
+#include "CanvasPattern.h"
+#include "CanvasRenderingContext2D.h"
+#include "CanvasStyle.h"
+#include "ExceptionCode.h"
+#include "FloatRect.h"
+#include "HTMLCanvasElement.h"
+#include "HTMLImageElement.h"
+#include "HTMLVideoElement.h"
+#include "ImageData.h"
+#include "JSCanvasGradient.h"
+#include "JSCanvasPattern.h"
+#include "JSHTMLCanvasElement.h"
+#include "JSHTMLImageElement.h"
+#include "JSHTMLVideoElement.h"
+#include "JSImageData.h"
+#include <runtime/Error.h>
+
+using namespace JSC;
+
+namespace WebCore {
+
+static JSValue toJS(ExecState* exec, CanvasStyle* style)
+{
+    if (style->canvasGradient())
+        return toJS(exec, style->canvasGradient());
+    if (style->canvasPattern())
+        return toJS(exec, style->canvasPattern());
+    return jsString(exec, style->color());
+}
+
+static PassRefPtr<CanvasStyle> toHTMLCanvasStyle(ExecState*, JSValue value)
+{
+    if (!value.isObject())
+        return 0;
+    JSObject* object = asObject(value);
+    if (object->inherits(&JSCanvasGradient::s_info))
+        return CanvasStyle::create(static_cast<JSCanvasGradient*>(object)->impl());
+    if (object->inherits(&JSCanvasPattern::s_info))
+        return CanvasStyle::create(static_cast<JSCanvasPattern*>(object)->impl());
+    return 0;
+}
+
+JSValue JSCanvasRenderingContext2D::strokeStyle(ExecState* exec) const
+{
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    return toJS(exec, context->strokeStyle());        
+}
+
+void JSCanvasRenderingContext2D::setStrokeStyle(ExecState* exec, JSValue value)
+{
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    if (value.isString()) {
+        context->setStrokeColor(ustringToString(asString(value)->value(exec)));
+        return;
+    }
+    context->setStrokeStyle(toHTMLCanvasStyle(exec, value));
+}
+
+JSValue JSCanvasRenderingContext2D::fillStyle(ExecState* exec) const
+{
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    return toJS(exec, context->fillStyle());
+}
+
+void JSCanvasRenderingContext2D::setFillStyle(ExecState* exec, JSValue value)
+{
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    if (value.isString()) {
+        context->setFillColor(ustringToString(asString(value)->value(exec)));
+        return;
+    }
+    context->setFillStyle(toHTMLCanvasStyle(exec, value));
+}
+
+JSValue JSCanvasRenderingContext2D::setFillColor(ExecState* exec)
+{
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    // string arg = named color
+    // number arg = gray color
+    // string arg, number arg = named color, alpha
+    // number arg, number arg = gray color, alpha
+    // 4 args = r, g, b, a
+    // 5 args = c, m, y, k, a
+    switch (exec->argumentCount()) {
+        case 1:
+            if (exec->argument(0).isString())
+                context->setFillColor(ustringToString(asString(exec->argument(0))->value(exec)));
+            else
+                context->setFillColor(exec->argument(0).toFloat(exec));
+            break;
+        case 2:
+            if (exec->argument(0).isString())
+                context->setFillColor(ustringToString(asString(exec->argument(0))->value(exec)), exec->argument(1).toFloat(exec));
+            else
+                context->setFillColor(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec));
+            break;
+        case 4:
+            context->setFillColor(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                  exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec));
+            break;
+        case 5:
+            context->setFillColor(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                  exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec));
+            break;
+        default:
+            return throwSyntaxError(exec);
+    }
+    return jsUndefined();
+}    
+
+JSValue JSCanvasRenderingContext2D::setStrokeColor(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    // string arg = named color
+    // number arg = gray color
+    // string arg, number arg = named color, alpha
+    // number arg, number arg = gray color, alpha
+    // 4 args = r, g, b, a
+    // 5 args = c, m, y, k, a
+    switch (exec->argumentCount()) {
+        case 1:
+            if (exec->argument(0).isString())
+                context->setStrokeColor(ustringToString(asString(exec->argument(0))->value(exec)));
+            else
+                context->setStrokeColor(exec->argument(0).toFloat(exec));
+            break;
+        case 2:
+            if (exec->argument(0).isString())
+                context->setStrokeColor(ustringToString(asString(exec->argument(0))->value(exec)), exec->argument(1).toFloat(exec));
+            else
+                context->setStrokeColor(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec));
+            break;
+        case 4:
+            context->setStrokeColor(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                    exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec));
+            break;
+        case 5:
+            context->setStrokeColor(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                    exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec));
+            break;
+        default:
+            return throwSyntaxError(exec);
+    }
+    
+    return jsUndefined();
+}
+
+JSValue JSCanvasRenderingContext2D::strokeRect(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    
+    if (exec->argumentCount() <= 4)
+        context->strokeRect(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                            exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec));
+    else
+        context->strokeRect(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                            exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec));
+
+    return jsUndefined();    
+}
+
+JSValue JSCanvasRenderingContext2D::drawImage(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    // DrawImage has three variants:
+    //     drawImage(img, dx, dy)
+    //     drawImage(img, dx, dy, dw, dh)
+    //     drawImage(img, sx, sy, sw, sh, dx, dy, dw, dh)
+    // Composite operation is specified with globalCompositeOperation.
+    // The img parameter can be a <img> or <canvas> element.
+    JSValue value = exec->argument(0);
+    if (!value.isObject())
+        return throwTypeError(exec);
+    JSObject* o = asObject(value);
+    
+    ExceptionCode ec = 0;
+    if (o->inherits(&JSHTMLImageElement::s_info)) {
+        HTMLImageElement* imgElt = static_cast<HTMLImageElement*>(static_cast<JSHTMLElement*>(o)->impl());
+        switch (exec->argumentCount()) {
+            case 3:
+                context->drawImage(imgElt, exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), ec);
+                break;
+            case 5:
+                context->drawImage(imgElt, exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                                   exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec), ec);
+                setDOMException(exec, ec);
+                break;
+            case 9:
+                context->drawImage(imgElt, FloatRect(exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                                   exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec)),
+                                   FloatRect(exec->argument(5).toFloat(exec), exec->argument(6).toFloat(exec),
+                                   exec->argument(7).toFloat(exec), exec->argument(8).toFloat(exec)), ec);
+                setDOMException(exec, ec);
+                break;
+            default:
+                return throwSyntaxError(exec);
+        }
+    } else if (o->inherits(&JSHTMLCanvasElement::s_info)) {
+        HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(static_cast<JSHTMLElement*>(o)->impl());
+        switch (exec->argumentCount()) {
+            case 3:
+                context->drawImage(canvas, exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), ec);
+                setDOMException(exec, ec);
+                break;
+            case 5:
+                context->drawImage(canvas, exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                                   exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec), ec);
+                setDOMException(exec, ec);
+                break;
+            case 9:
+                context->drawImage(canvas, FloatRect(exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                                   exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec)),
+                                   FloatRect(exec->argument(5).toFloat(exec), exec->argument(6).toFloat(exec),
+                                   exec->argument(7).toFloat(exec), exec->argument(8).toFloat(exec)), ec);
+                setDOMException(exec, ec);
+                break;
+            default:
+                return throwSyntaxError(exec);
+        }
+#if ENABLE(VIDEO)
+    } else if (o->inherits(&JSHTMLVideoElement::s_info)) {
+            HTMLVideoElement* video = static_cast<HTMLVideoElement*>(static_cast<JSHTMLElement*>(o)->impl());
+            switch (exec->argumentCount()) {
+                case 3:
+                    context->drawImage(video, exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), ec);
+                    break;
+                case 5:
+                    context->drawImage(video, exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                                       exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec), ec);
+                    setDOMException(exec, ec);
+                    break;
+                case 9:
+                    context->drawImage(video, FloatRect(exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                                       exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec)),
+                                       FloatRect(exec->argument(5).toFloat(exec), exec->argument(6).toFloat(exec),
+                                       exec->argument(7).toFloat(exec), exec->argument(8).toFloat(exec)), ec);
+                    setDOMException(exec, ec);
+                    break;
+                default:
+                    return throwSyntaxError(exec);
+        }
+#endif
+    } else
+       return throwTypeError(exec);
+    
+    return jsUndefined();    
+}
+
+JSValue JSCanvasRenderingContext2D::drawImageFromRect(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    
+    JSValue value = exec->argument(0);
+    if (!value.isObject())
+        return throwTypeError(exec);
+    JSObject* o = asObject(value);
+    
+    if (!o->inherits(&JSHTMLImageElement::s_info))
+        return throwTypeError(exec);
+    context->drawImageFromRect(static_cast<HTMLImageElement*>(static_cast<JSHTMLElement*>(o)->impl()),
+                               exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec),
+                               exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec),
+                               exec->argument(5).toFloat(exec), exec->argument(6).toFloat(exec),
+                               exec->argument(7).toFloat(exec), exec->argument(8).toFloat(exec),
+                               ustringToString(exec->argument(9).toString(exec)));    
+    return jsUndefined();    
+}
+
+JSValue JSCanvasRenderingContext2D::setShadow(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    switch (exec->argumentCount()) {
+        case 3:
+            context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                               exec->argument(2).toFloat(exec));
+            break;
+        case 4:
+            if (exec->argument(3).isString())
+                context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                   exec->argument(2).toFloat(exec), ustringToString(asString(exec->argument(3))->value(exec)));
+            else
+                context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                   exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec));
+            break;
+        case 5:
+            if (exec->argument(3).isString())
+                context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                   exec->argument(2).toFloat(exec), ustringToString(asString(exec->argument(3))->value(exec)),
+                                   exec->argument(4).toFloat(exec));
+            else
+                context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                                   exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec),
+                                   exec->argument(4).toFloat(exec));
+            break;
+        case 7:
+            context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                               exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec),
+                               exec->argument(4).toFloat(exec), exec->argument(5).toFloat(exec),
+                               exec->argument(6).toFloat(exec));
+            break;
+        case 8:
+            context->setShadow(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec),
+                               exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec),
+                               exec->argument(4).toFloat(exec), exec->argument(5).toFloat(exec),
+                               exec->argument(6).toFloat(exec), exec->argument(7).toFloat(exec));
+            break;
+        default:
+            return throwSyntaxError(exec);
+    }
+    
+    return jsUndefined();    
+}
+
+JSValue JSCanvasRenderingContext2D::createPattern(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    JSValue value = exec->argument(0);
+    if (!value.isObject())
+        return throwTypeError(exec);
+    JSObject* o = asObject(value);
+
+    if (o->inherits(&JSHTMLImageElement::s_info)) {
+        ExceptionCode ec;
+        JSValue pattern = toJS(exec,
+            context->createPattern(static_cast<HTMLImageElement*>(static_cast<JSHTMLElement*>(o)->impl()),
+                                   valueToStringWithNullCheck(exec, exec->argument(1)), ec).get());
+        setDOMException(exec, ec);
+        return pattern;
+    }
+    if (o->inherits(&JSHTMLCanvasElement::s_info)) {
+        ExceptionCode ec;
+        JSValue pattern = toJS(exec,
+            context->createPattern(static_cast<HTMLCanvasElement*>(static_cast<JSHTMLElement*>(o)->impl()),
+                valueToStringWithNullCheck(exec, exec->argument(1)), ec).get());
+        setDOMException(exec, ec);
+        return pattern;
+    }
+    setDOMException(exec, TYPE_MISMATCH_ERR);
+    return jsUndefined();
+}
+
+JSValue JSCanvasRenderingContext2D::createImageData(ExecState* exec)
+{
+    // createImageData has two variants
+    // createImageData(ImageData)
+    // createImageData(width, height)
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+    RefPtr<ImageData> imageData = 0;
+
+    ExceptionCode ec = 0;
+    if (exec->argumentCount() == 1)
+        imageData = context->createImageData(toImageData(exec->argument(0)), ec);
+    else if (exec->argumentCount() == 2)
+        imageData = context->createImageData(exec->argument(0).toFloat(exec), exec->argument(1).toFloat(exec), ec);
+
+    setDOMException(exec, ec);
+    return toJS(exec, globalObject(), WTF::getPtr(imageData));
+}
+
+JSValue JSCanvasRenderingContext2D::putImageData(ExecState* exec)
+{
+    // putImageData has two variants
+    // putImageData(ImageData, x, y)
+    // putImageData(ImageData, x, y, dirtyX, dirtyY, dirtyWidth, dirtyHeight)
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    ExceptionCode ec = 0;
+    if (exec->argumentCount() >= 7)
+        context->putImageData(toImageData(exec->argument(0)), exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), 
+                              exec->argument(3).toFloat(exec), exec->argument(4).toFloat(exec), exec->argument(5).toFloat(exec), exec->argument(6).toFloat(exec), ec);
+    else
+        context->putImageData(toImageData(exec->argument(0)), exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), ec);
+
+    setDOMException(exec, ec);
+    return jsUndefined();
+}
+
+JSValue JSCanvasRenderingContext2D::fillText(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    // string arg = text to draw
+    // number arg = x
+    // number arg = y
+    // optional number arg = maxWidth
+    if (exec->argumentCount() < 3 || exec->argumentCount() > 4)
+        return throwSyntaxError(exec);
+    
+    if (exec->argumentCount() == 4)
+        context->fillText(ustringToString(exec->argument(0).toString(exec)), exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec));
+    else
+        context->fillText(ustringToString(exec->argument(0).toString(exec)), exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec));
+    return jsUndefined();
+}
+
+JSValue JSCanvasRenderingContext2D::strokeText(ExecState* exec)
+{ 
+    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
+
+    // string arg = text to draw
+    // number arg = x
+    // number arg = y
+    // optional number arg = maxWidth
+    if (exec->argumentCount() < 3 || exec->argumentCount() > 4)
+        return throwSyntaxError(exec);
+    
+    if (exec->argumentCount() == 4)
+        context->strokeText(ustringToString(exec->argument(0).toString(exec)), exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec), exec->argument(3).toFloat(exec));
+    else
+        context->strokeText(ustringToString(exec->argument(0).toString(exec)), exec->argument(1).toFloat(exec), exec->argument(2).toFloat(exec));
+    return jsUndefined();
+}
+
+} // namespace WebCore