Add webkit to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 222 insertions, 0 deletions

diff --git a/webkit/pending/SVGImage.cpp b/webkit/pending/SVGImage.cpp
new file mode 100644
index 0000000..984b832
--- /dev/null
+++ b/webkit/pending/SVGImage.cpp
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
+ * Copyright (C) 2008 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#if ENABLE(SVG)
+#include "SVGImage.h"
+
+#include "CachedPage.h"
+#include "DocumentLoader.h"
+#include "EditCommand.h"
+#include "FloatRect.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameView.h"
+#include "GraphicsContext.h"
+#include "ImageObserver.h"
+#include "NotImplemented.h"
+#include "Page.h"
+#include "ResourceError.h"
+#include "SVGDocument.h"
+#include "SVGLength.h"
+#include "SVGRenderSupport.h"
+#include "SVGSVGElement.h"
+#include "Settings.h"
+
+#include "SVGImageEmptyClients.h"
+
+namespace WebCore {
+
+SVGImage::SVGImage(ImageObserver* observer)
+    : Image(observer)
+    , m_document(0)
+    , m_page(0)
+    , m_frame(0)
+    , m_frameView(0)
+{
+}
+
+SVGImage::~SVGImage()
+{
+    if (m_frame)
+        m_frame->loader()->frameDetached(); // Break both the loader and view references to the frame
+}
+
+void SVGImage::setContainerSize(const IntSize& containerSize)
+{
+    if (containerSize.width() <= 0 || containerSize.height() <= 0)
+        return;
+
+    if (!m_frame || !m_frame->document())
+        return;
+    SVGSVGElement* rootElement = static_cast<SVGDocument*>(m_frame->document())->rootElement();
+    if (!rootElement)
+        return;
+
+    rootElement->setContainerSize(containerSize);
+}
+
+bool SVGImage::usesContainerSize() const
+{
+    if (!m_frame || !m_frame->document())
+        return false;
+    SVGSVGElement* rootElement = static_cast<SVGDocument*>(m_frame->document())->rootElement();
+    if (!rootElement)
+        return false;
+
+    return rootElement->hasSetContainerSize();
+}
+
+IntSize SVGImage::size() const
+{
+    if (!m_frame || !m_frame->document())
+        return IntSize();
+    
+    SVGSVGElement* rootElement = static_cast<SVGDocument*>(m_frame->document())->rootElement();
+    if (!rootElement)
+        return IntSize();
+    
+    SVGLength width = rootElement->width();
+    SVGLength height = rootElement->height();
+    
+    IntSize svgSize;
+    if (width.unitType() == LengthTypePercentage) 
+        svgSize.setWidth(rootElement->relativeWidthValue());
+    else
+        svgSize.setWidth(static_cast<int>(width.value()));
+
+    if (height.unitType() == LengthTypePercentage) 
+        svgSize.setHeight(rootElement->relativeHeightValue());
+    else
+        svgSize.setHeight(static_cast<int>(height.value()));
+
+    return svgSize;
+}
+
+bool SVGImage::hasRelativeWidth() const
+{
+    if (!m_frame || !m_frame->document())
+        return false;
+    SVGSVGElement* rootElement = static_cast<SVGDocument*>(m_frame->document())->rootElement();
+    if (!rootElement)
+        return false;
+
+    return rootElement->width().unitType() == LengthTypePercentage;
+}
+
+bool SVGImage::hasRelativeHeight() const
+{
+    if (!m_frame || !m_frame->document())
+        return false;
+    SVGSVGElement* rootElement = static_cast<SVGDocument*>(m_frame->document())->rootElement();
+    if (!rootElement)
+        return false;
+
+    return rootElement->height().unitType() == LengthTypePercentage;
+}
+
+void SVGImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator compositeOp)
+{
+    if (!m_frame)
+        return;
+    
+    context->save();
+    context->clip(enclosingIntRect(dstRect));
+    context->translate(dstRect.location().x(), dstRect.location().y());
+    context->scale(FloatSize(dstRect.width()/srcRect.width(), dstRect.height()/srcRect.height()));
+    
+    if (m_frame->view()->needsLayout())
+        m_frame->view()->layout();
+    m_frame->paint(context, enclosingIntRect(srcRect));
+
+    context->restore();
+
+    if (imageObserver())
+        imageObserver()->didDraw(this);
+}
+
+NativeImagePtr SVGImage::nativeImageForCurrentFrame()
+{
+    // FIXME: In order to support dynamic SVGs we need to have a way to invalidate this
+    // frame cache, or better yet, not use a cache for tiled drawing at all, instead
+    // having a tiled drawing callback (hopefully non-virtual).
+    if (!m_frameCache) {
+        m_frameCache.set(ImageBuffer::create(size(), false).release());
+        if (!m_frameCache) // failed to allocate image
+            return 0;
+        renderSubtreeToImage(m_frameCache.get(), m_frame->renderer());
+    }
+#if PLATFORM(CG)
+    return m_frameCache->cgImage();
+#elif PLATFORM(QT)
+    return m_frameCache->pixmap();
+#elif PLATFORM(CAIRO)
+    return m_frameCache->surface();
+#else
+    notImplemented();
+    return 0;
+#endif
+}
+
+bool SVGImage::dataChanged(bool allDataReceived)
+{
+    int length = m_data->size();
+    if (!length) // if this was an empty image
+        return true;
+    
+    if (allDataReceived) {
+        static ChromeClient* dummyChromeClient = new SVGEmptyChromeClient;
+        static FrameLoaderClient* dummyFrameLoaderClient =  new SVGEmptyFrameLoaderClient;
+        static EditorClient* dummyEditorClient = new SVGEmptyEditorClient;
+        static ContextMenuClient* dummyContextMenuClient = new SVGEmptyContextMenuClient;
+        static DragClient* dummyDragClient = new SVGEmptyDragClient;
+        static InspectorClient* dummyInspectorClient = new SVGEmptyInspectorClient;
+
+        // FIXME: If this SVG ends up loading itself, we'll leak this Frame (and associated DOM & render trees).
+        // The Cache code does not know about CachedImages holding Frames and won't know to break the cycle.
+        m_page.set(new Page(dummyChromeClient, dummyContextMenuClient, dummyEditorClient, dummyDragClient, dummyInspectorClient));
+        m_page->settings()->setJavaScriptEnabled(false);
+
+        m_frame = new Frame(m_page.get(), 0, dummyFrameLoaderClient);
+        m_frameView = new FrameView(m_frame.get());
+        m_frameView->deref(); // FIXME: FrameView starts with a refcount of 1
+        m_frame->setView(m_frameView.get());
+        m_frame->init();
+        ResourceRequest fakeRequest(KURL(""));
+        m_frame->loader()->load(fakeRequest); // Make sure the DocumentLoader is created
+        m_frame->loader()->cancelContentPolicyCheck(); // cancel any policy checks
+        m_frame->loader()->commitProvisionalLoad(0);
+        m_frame->loader()->setResponseMIMEType("image/svg+xml");
+        m_frame->loader()->begin(KURL()); // create the empty document
+        m_frame->loader()->write(m_data->data(), m_data->size());
+        m_frame->loader()->end();
+    }
+    return m_frameView;
+}
+
+}
+
+#endif // ENABLE(SVG)