Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 196 insertions, 0 deletions

diff --git a/Source/WebCore/html/HTMLPlugInImageElement.cpp b/Source/WebCore/html/HTMLPlugInImageElement.cpp
new file mode 100644
index 0000000..9ac5ad8
--- /dev/null
+++ b/Source/WebCore/html/HTMLPlugInImageElement.cpp
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2008 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 "HTMLPlugInImageElement.h"
+
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameLoaderClient.h"
+#include "HTMLImageLoader.h"
+#include "Image.h"
+#include "Page.h"
+#include "RenderEmbeddedObject.h"
+#include "RenderImage.h"
+
+namespace WebCore {
+
+HTMLPlugInImageElement::HTMLPlugInImageElement(const QualifiedName& tagName, Document* document, bool createdByParser)
+    : HTMLPlugInElement(tagName, document)
+    // m_needsWidgetUpdate(!createdByParser) allows HTMLObjectElement to delay
+    // widget updates until after all children are parsed.  For HTMLEmbedElement
+    // this delay is unnecessary, but it is simpler to make both classes share
+    // the same codepath in this class.
+    , m_needsWidgetUpdate(!createdByParser)
+{
+}
+
+RenderEmbeddedObject* HTMLPlugInImageElement::renderEmbeddedObject() const
+{
+    // HTMLObjectElement and HTMLEmbedElement may return arbitrary renderers
+    // when using fallback content.
+    if (!renderer() || !renderer()->isEmbeddedObject())
+        return 0;
+    return toRenderEmbeddedObject(renderer());
+}
+
+bool HTMLPlugInImageElement::isImageType()
+{
+    if (m_serviceType.isEmpty() && protocolIs(m_url, "data"))
+        m_serviceType = mimeTypeFromDataURL(m_url);
+
+    if (Frame* frame = document()->frame()) {
+        KURL completedURL = frame->loader()->completeURL(m_url);
+        return frame->loader()->client()->objectContentType(completedURL, m_serviceType) == ObjectContentImage;
+    }
+
+    return Image::supportsType(m_serviceType);
+}
+
+// We don't use m_url, as it may not be the final URL that the object loads,
+// depending on <param> values. 
+bool HTMLPlugInImageElement::allowedToLoadFrameURL(const String& url)
+{
+    ASSERT(document());
+    ASSERT(document()->frame());
+    if (document()->frame()->page()->frameCount() >= Page::maxNumberOfFrames)
+        return false;
+
+    // We allow one level of self-reference because some sites depend on that.
+    // But we don't allow more than one.
+    KURL completeURL = document()->completeURL(url);
+    bool foundSelfReference = false;
+    for (Frame* frame = document()->frame(); frame; frame = frame->tree()->parent()) {
+        if (equalIgnoringFragmentIdentifier(frame->loader()->url(), completeURL)) {
+            if (foundSelfReference)
+                return false;
+            foundSelfReference = true;
+        }
+    }
+    return true;
+}
+
+// We don't use m_url, or m_serviceType as they may not be the final values
+// that <object> uses depending on <param> values. 
+bool HTMLPlugInImageElement::wouldLoadAsNetscapePlugin(const String& url, const String& serviceType)
+{
+    ASSERT(document());
+    ASSERT(document()->frame());
+    FrameLoader* frameLoader = document()->frame()->loader();
+    ASSERT(frameLoader);
+    KURL completedURL;
+    if (!url.isEmpty())
+        completedURL = frameLoader->completeURL(url);
+
+    if (frameLoader->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
+        return true;
+    return false;
+}
+
+RenderObject* HTMLPlugInImageElement::createRenderer(RenderArena* arena, RenderStyle* style)
+{
+    // Fallback content breaks the DOM->Renderer class relationship of this
+    // class and all superclasses because createObject won't necessarily
+    // return a RenderEmbeddedObject, RenderPart or even RenderWidget.
+    if (useFallbackContent())
+        return RenderObject::createObject(this, style);
+    if (isImageType()) {
+        RenderImage* image = new (arena) RenderImage(this);
+        image->setImageResource(RenderImageResource::create());
+        return image;
+    }
+    return new (arena) RenderEmbeddedObject(this);
+}
+
+void HTMLPlugInImageElement::recalcStyle(StyleChange ch)
+{
+    // FIXME: Why is this necessary?  Manual re-attach is almost always wrong.
+    if (!useFallbackContent() && needsWidgetUpdate() && renderer() && !isImageType()) {
+        detach();
+        attach();
+    }
+    HTMLPlugInElement::recalcStyle(ch);
+}
+
+void HTMLPlugInImageElement::attach()
+{
+    bool isImage = isImageType();
+    
+    if (!isImage)
+        queuePostAttachCallback(&HTMLPlugInImageElement::updateWidgetCallback, this);
+
+    HTMLPlugInElement::attach();
+
+    if (isImage && renderer() && !useFallbackContent()) {
+        if (!m_imageLoader)
+            m_imageLoader = adoptPtr(new HTMLImageLoader(this));
+        m_imageLoader->updateFromElement();
+    }
+}
+    
+void HTMLPlugInImageElement::detach()
+{
+    // FIXME: Because of the insanity that is HTMLPlugInImageElement::recalcStyle,
+    // we can end up detaching during an attach() call, before we even have a
+    // renderer.  In that case, don't mark the widget for update.
+    if (attached() && renderer() && !useFallbackContent())
+        // Update the widget the next time we attach (detaching destroys the plugin).
+        setNeedsWidgetUpdate(true);
+    HTMLPlugInElement::detach();
+}
+
+void HTMLPlugInImageElement::updateWidgetIfNecessary()
+{
+    document()->updateStyleIfNeeded();
+
+    if (!needsWidgetUpdate() || useFallbackContent() || isImageType())
+        return;
+
+    if (!renderEmbeddedObject() || renderEmbeddedObject()->pluginCrashedOrWasMissing())
+        return;
+
+    // True indicates that this code path should only create non-netscape plugins (no clue why).
+    updateWidget(true);
+}
+
+void HTMLPlugInImageElement::finishParsingChildren()
+{
+    HTMLPlugInElement::finishParsingChildren();
+    if (useFallbackContent())
+        return;
+    
+    setNeedsWidgetUpdate(true);
+    if (inDocument())
+        setNeedsStyleRecalc();    
+}
+
+void HTMLPlugInImageElement::willMoveToNewOwnerDocument()
+{
+    if (m_imageLoader)
+        m_imageLoader->elementWillMoveToNewOwnerDocument();
+    HTMLPlugInElement::willMoveToNewOwnerDocument();
+}
+
+void HTMLPlugInImageElement::updateWidgetCallback(Node* n)
+{
+    static_cast<HTMLPlugInImageElement*>(n)->updateWidgetIfNecessary();
+}
+
+} // namespace WebCore