Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

4 files changed, 425 insertions, 0 deletions

diff --git a/Source/WebCore/page/chromium/ChromeClientChromium.h b/Source/WebCore/page/chromium/ChromeClientChromium.h
new file mode 100644
index 0000000..02e2a94
--- /dev/null
+++ b/Source/WebCore/page/chromium/ChromeClientChromium.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2008, Google 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:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#ifndef ChromeClientChromium_h
+#define ChromeClientChromium_h
+
+#include "ChromeClient.h"
+#include <wtf/Forward.h>
+
+namespace WebCore {
+class IntRect;
+class PopupContainer;
+
+// Contains Chromium-specific extensions to the ChromeClient.  Only put
+// things here that don't make sense for other ports.
+class ChromeClientChromium : public ChromeClient {
+public:
+    // Notifies the client of a new popup widget.  The client should place
+    // and size the widget with the given bounds, relative to the screen.
+    // If handleExternal is true, then drawing and input handling for the
+    // popup will be handled by the external embedder.
+    virtual void popupOpened(PopupContainer* popupContainer, const IntRect& bounds,
+                             bool handleExternal) = 0;
+                             
+    // Notifies the client a popup was closed.
+    virtual void popupClosed(PopupContainer* popupContainer) = 0;
+};
+
+} // namespace WebCore
+
+#endif
diff --git a/Source/WebCore/page/chromium/DragControllerChromium.cpp b/Source/WebCore/page/chromium/DragControllerChromium.cpp
new file mode 100644
index 0000000..de53d19
--- /dev/null
+++ b/Source/WebCore/page/chromium/DragControllerChromium.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2007 Apple Inc.  All rights reserved.
+ * Copyright (C) 2008 Google Inc.
+ *
+ * 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"
+#include "DragController.h"
+
+#include "DragData.h"
+#include "SelectionController.h"
+#include <wtf/RefPtr.h>
+
+#if OS(WINDOWS)
+#include <windows.h>
+#endif
+
+namespace WebCore {
+
+const int DragController::LinkDragBorderInset = 2;
+const int DragController::MaxOriginalImageArea = 1500 * 1500;
+const int DragController::DragIconRightInset = 7;
+const int DragController::DragIconBottomInset = 3;
+
+const float DragController::DragImageAlpha = 0.75f;
+
+DragOperation DragController::dragOperation(DragData* dragData)
+{
+    // FIXME: To match the MacOS behaviour we should return DragOperationNone
+    // if we are a modal window, we are the drag source, or the window is an
+    // attached sheet If this can be determined from within WebCore
+    // operationForDrag can be pulled into WebCore itself
+    ASSERT(dragData);
+    return dragData->containsURL() && !m_didInitiateDrag ? DragOperationCopy : DragOperationNone;
+}
+
+bool DragController::isCopyKeyDown()
+{
+    // FIXME: This should not be OS specific.  Delegate to the embedder instead.
+#if OS(WINDOWS)
+    return ::GetAsyncKeyState(VK_CONTROL);
+#else
+    return false;
+#endif
+}
+    
+const IntSize& DragController::maxDragImageSize()
+{
+#if OS(DARWIN)
+    // Match Safari's drag image size.
+    static const IntSize maxDragImageSize(400, 400);
+#else
+    static const IntSize maxDragImageSize(200, 200);
+#endif
+    return maxDragImageSize;
+}
+
+void DragController::cleanupAfterSystemDrag()
+{
+}
+
+} // namespace WebCore
diff --git a/Source/WebCore/page/chromium/EventHandlerChromium.cpp b/Source/WebCore/page/chromium/EventHandlerChromium.cpp
new file mode 100644
index 0000000..9b40fb3
--- /dev/null
+++ b/Source/WebCore/page/chromium/EventHandlerChromium.cpp
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Google Inc.
+ *
+ * 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"
+#include "EventHandler.h"
+
+#include "ChromiumDataObject.h"
+#include "ClipboardChromium.h"
+#include "Cursor.h"
+#include "FloatPoint.h"
+#include "FocusController.h"
+#include "FrameView.h"
+#include "Frame.h"
+#include "HitTestRequest.h"
+#include "HitTestResult.h"
+#include "MouseEventWithHitTestResults.h"
+#include "NotImplemented.h"
+#include "Page.h"
+#include "PlatformKeyboardEvent.h"
+#include "PlatformWheelEvent.h"
+#include "RenderWidget.h"
+#include "SelectionController.h"
+
+namespace WebCore {
+
+#if OS(DARWIN)
+const double EventHandler::TextDragDelay = 0.15;
+#else
+const double EventHandler::TextDragDelay = 0.0;
+#endif
+
+bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
+{
+    // If we're clicking into a frame that is selected, the frame will appear
+    // greyed out even though we're clicking on the selection.  This looks
+    // really strange (having the whole frame be greyed out), so we deselect the
+    // selection.
+    IntPoint p = m_frame->view()->windowToContents(mev.event().pos());
+    if (m_frame->selection()->contains(p)) {
+        VisiblePosition visiblePos(
+            mev.targetNode()->renderer()->positionForPoint(mev.localPoint()));
+        VisibleSelection newSelection(visiblePos);
+        if (m_frame->selection()->shouldChangeSelection(newSelection))
+            m_frame->selection()->setSelection(newSelection);
+    }
+
+    subframe->eventHandler()->handleMousePressEvent(mev.event());
+    return true;
+}
+
+bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe, HitTestResult* hoveredNode)
+{
+    if (m_mouseDownMayStartDrag && !m_mouseDownWasInSubframe)
+        return false;
+    subframe->eventHandler()->handleMouseMoveEvent(mev.event(), hoveredNode);
+    return true;
+}
+
+bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)
+{
+    subframe->eventHandler()->handleMouseReleaseEvent(mev.event());
+    return true;
+}
+
+bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& wheelEvent, Widget* widget)
+{
+    // We can sometimes get a null widget!  EventHandlerMac handles a null
+    // widget by returning false, so we do the same.
+    if (!widget)
+        return false;
+
+    // If not a FrameView, then probably a plugin widget.  Those will receive
+    // the event via an EventTargetNode dispatch when this returns false.
+    if (!widget->isFrameView())
+        return false;
+
+    return static_cast<FrameView*>(widget)->frame()->eventHandler()->handleWheelEvent(wheelEvent);
+}
+
+bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)
+{
+    // Figure out which view to send the event to.
+    if (!event.targetNode() || !event.targetNode()->renderer() || !event.targetNode()->renderer()->isWidget())
+        return false;
+    return passMouseDownEventToWidget(toRenderWidget(event.targetNode()->renderer())->widget());
+}
+
+bool EventHandler::passMouseDownEventToWidget(Widget* widget)
+{
+    notImplemented();
+    return false;
+}
+
+bool EventHandler::tabsToAllControls(KeyboardEvent*) const
+{
+    return true;
+}
+
+bool EventHandler::eventActivatedView(const PlatformMouseEvent& event) const
+{
+    // FIXME: EventHandlerWin.cpp does the following:
+    // return event.activatedWebView();
+    return false;
+}
+
+PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const
+{
+    RefPtr<ChromiumDataObjectLegacy> dataObject = ChromiumDataObjectLegacy::create(Clipboard::DragAndDrop);
+    return ClipboardChromium::create(Clipboard::DragAndDrop, ChromiumDataObject::create(dataObject), ClipboardWritable, m_frame);
+}
+
+void EventHandler::focusDocumentView()
+{
+    Page* page = m_frame->page();
+    if (!page)
+        return;
+    page->focusController()->setFocusedFrame(m_frame);
+}
+
+bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget)
+{
+    return passMouseDownEventToWidget(renderWidget->widget());
+}
+
+unsigned EventHandler::accessKeyModifiers()
+{
+#if OS(DARWIN)
+    return PlatformKeyboardEvent::CtrlKey | PlatformKeyboardEvent::AltKey;
+#else
+    return PlatformKeyboardEvent::AltKey;
+#endif
+}
+
+#if OS(LINUX) || OS(FREEBSD)
+// GTK+ must scroll horizontally if the mouse pointer is on top of the
+// horizontal scrollbar while scrolling with the wheel.
+// This code comes from gtk/EventHandlerGtk.cpp.
+bool EventHandler::shouldTurnVerticalTicksIntoHorizontal(const HitTestResult& result) const
+{
+    return result.scrollbar() && result.scrollbar()->orientation() == HorizontalScrollbar;
+}
+#endif
+
+} // namespace WebCore
diff --git a/Source/WebCore/page/chromium/FrameChromium.cpp b/Source/WebCore/page/chromium/FrameChromium.cpp
new file mode 100644
index 0000000..15ff8b4
--- /dev/null
+++ b/Source/WebCore/page/chromium/FrameChromium.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Google Inc.
+ *
+ * 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"
+
+#include "Document.h"
+#include "FloatRect.h"
+#include "ImageBuffer.h"
+#include "RenderView.h"
+#include "Settings.h"
+
+namespace WebCore {
+
+namespace {
+
+struct ScopedState {
+    ScopedState(Frame* theFrame, RenderObject* theRenderer)
+        : frame(theFrame)
+        , renderer(theRenderer)
+        , paintBehavior(frame->view()->paintBehavior())
+        , backgroundColor(frame->view()->baseBackgroundColor())
+    {
+    }
+
+    ~ScopedState()
+    {
+        if (renderer)
+            renderer->updateDragState(false);
+        frame->view()->setPaintBehavior(paintBehavior);
+        frame->view()->setBaseBackgroundColor(backgroundColor);
+        frame->view()->setNodeToDraw(0);
+    }
+
+    Frame* frame;
+    RenderObject* renderer;
+    PaintBehavior paintBehavior;
+    Color backgroundColor;
+};
+
+} // namespace
+
+DragImageRef Frame::nodeImage(Node* node)
+{
+    RenderObject* renderer = node->renderer();
+    if (!renderer)
+        return 0;
+
+    const ScopedState state(this, renderer);
+
+    renderer->updateDragState(true);
+    m_view->setPaintBehavior(state.paintBehavior | PaintBehaviorFlattenCompositingLayers);
+    // When generating the drag image for an element, ignore the document background.
+    m_view->setBaseBackgroundColor(colorWithOverrideAlpha(Color::white, 1.0));
+    m_doc->updateLayout();
+    m_view->setNodeToDraw(node); // Enable special sub-tree drawing mode.
+
+    IntRect topLevelRect;
+    IntRect paintingRect = renderer->paintingRootRect(topLevelRect);
+
+    OwnPtr<ImageBuffer> buffer(ImageBuffer::create(paintingRect.size()));
+    if (!buffer)
+        return 0;
+    buffer->context()->translate(-paintingRect.x(), -paintingRect.y());
+    buffer->context()->clip(FloatRect(0, 0, paintingRect.right(), paintingRect.bottom()));
+
+    m_view->paintContents(buffer->context(), paintingRect);
+
+    RefPtr<Image> image = buffer->copyImage();
+    return createDragImageFromImage(image.get());
+}
+
+DragImageRef Frame::dragImageForSelection()
+{
+    if (!selection()->isRange())
+        return 0;
+
+    const ScopedState state(this, 0);
+    m_view->setPaintBehavior(PaintBehaviorSelectionOnly);
+    m_doc->updateLayout();
+
+    IntRect paintingRect = enclosingIntRect(selection()->bounds());
+
+    OwnPtr<ImageBuffer> buffer(ImageBuffer::create(paintingRect.size()));
+    if (!buffer)
+        return 0;
+    buffer->context()->translate(-paintingRect.x(), -paintingRect.y());
+    buffer->context()->clip(FloatRect(0, 0, paintingRect.right(), paintingRect.bottom()));
+
+    m_view->paintContents(buffer->context(), paintingRect);
+
+    RefPtr<Image> image = buffer->copyImage();
+    return createDragImageFromImage(image.get());
+}
+
+} // namespace WebCore