diff -r 000000000000 -r 4f2f89ce4247 WebCore/plugins/qt/PluginViewQt.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/plugins/qt/PluginViewQt.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,827 @@
+/*
+ * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
+ * Copyright (C) 2008 Collabora Ltd. All rights reserved.
+ * Copyright (C) 2009 Girish Ramakrishnan <girish@forwardbias.in>
+ *
+ * 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 "PluginView.h"
+
+#include "Bridge.h"
+#include "Document.h"
+#include "DocumentLoader.h"
+#include "Element.h"
+#include "FloatPoint.h"
+#include "FocusController.h"
+#include "Frame.h"
+#include "FrameLoadRequest.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "GraphicsContext.h"
+#include "HTMLNames.h"
+#include "HTMLPlugInElement.h"
+#include "HostWindow.h"
+#include "Image.h"
+#include "JSDOMBinding.h"
+#include "KeyboardEvent.h"
+#include "MouseEvent.h"
+#include "NotImplemented.h"
+#include "Page.h"
+#include "PlatformMouseEvent.h"
+#include "PlatformKeyboardEvent.h"
+#include "PluginContainerQt.h"
+#include "PluginDebug.h"
+#include "PluginPackage.h"
+#include "PluginMainThreadScheduler.h"
+#include "QWebPageClient.h"
+#include "RenderLayer.h"
+#include "ScriptController.h"
+#include "Settings.h"
+#include "npruntime_impl.h"
+#include "qwebpage_p.h"
+#include "runtime_root.h"
+
+#include <QApplication>
+#include <QDesktopWidget>
+#include <QKeyEvent>
+#include <QPainter>
+#include <QWidget>
+#include <QX11Info>
+#include <X11/X.h>
+#ifndef QT_NO_XRENDER
+#define Bool int
+#define Status int
+#include <X11/extensions/Xrender.h>
+#endif
+#include <runtime/JSLock.h>
+#include <runtime/JSValue.h>
+
+using JSC::ExecState;
+using JSC::Interpreter;
+using JSC::JSLock;
+using JSC::JSObject;
+using JSC::UString;
+
+using std::min;
+
+using namespace WTF;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+void PluginView::updatePluginWidget()
+{
+    if (!parent())
+        return;
+
+    ASSERT(parent()->isFrameView());
+    FrameView* frameView = static_cast<FrameView*>(parent());
+
+    IntRect oldWindowRect = m_windowRect;
+    IntRect oldClipRect = m_clipRect;
+
+    m_windowRect = IntRect(frameView->contentsToWindow(frameRect().location()), frameRect().size());
+    m_clipRect = windowClipRect();
+    m_clipRect.move(-m_windowRect.x(), -m_windowRect.y());
+
+    if (m_windowRect == oldWindowRect && m_clipRect == oldClipRect)
+        return;
+
+    if (!m_isWindowed && m_windowRect.size() != oldWindowRect.size()) {
+        if (m_drawable)
+            XFreePixmap(QX11Info::display(), m_drawable);
+
+        m_drawable = XCreatePixmap(QX11Info::display(), QX11Info::appRootWindow(), m_windowRect.width(), m_windowRect.height(), 
+                                   ((NPSetWindowCallbackStruct*)m_npWindow.ws_info)->depth);
+        QApplication::syncX(); // make sure that the server knows about the Drawable
+    }
+
+    // do not call setNPWindowIfNeeded immediately, will be called on paint()
+    m_hasPendingGeometryChange = true;
+
+    // (i) in order to move/resize the plugin window at the same time as the
+    // rest of frame during e.g. scrolling, we set the window geometry
+    // in the paint() function, but as paint() isn't called when the
+    // plugin window is outside the frame which can be caused by a
+    // scroll, we need to move/resize immediately.
+    // (ii) if we are running layout tests from DRT, paint() won't ever get called
+    // so we need to call setNPWindowIfNeeded() if window geometry has changed
+    if (!m_windowRect.intersects(frameView->frameRect())
+        || (QWebPagePrivate::drtRun && platformPluginWidget() && (m_windowRect != oldWindowRect || m_clipRect != oldClipRect)))
+        setNPWindowIfNeeded();
+
+    // Make sure we get repainted afterwards. This is necessary for downward
+    // scrolling to move the plugin widget properly.
+    invalidate();
+}
+
+void PluginView::setFocus(bool focused)
+{
+    if (platformPluginWidget()) {
+        if (focused)
+            platformPluginWidget()->setFocus(Qt::OtherFocusReason);
+    } else {
+        Widget::setFocus(focused);
+    }
+}
+
+void PluginView::show()
+{
+    Q_ASSERT(platformPluginWidget() == platformWidget());
+    Widget::show();
+}
+
+void PluginView::hide()
+{
+    Q_ASSERT(platformPluginWidget() == platformWidget());
+    Widget::hide();
+}
+
+void PluginView::paint(GraphicsContext* context, const IntRect& rect)
+{
+    if (!m_isStarted) {
+        paintMissingPluginIcon(context, rect);
+        return;
+    }
+
+    if (context->paintingDisabled())
+        return;
+
+    setNPWindowIfNeeded();
+
+    if (m_isWindowed || !m_drawable)
+        return;
+
+    const bool syncX = m_pluginDisplay && m_pluginDisplay != QX11Info::display();
+
+    QPainter* painter = context->platformContext();
+    IntRect exposedRect(rect);
+    exposedRect.intersect(frameRect());
+    exposedRect.move(-frameRect().x(), -frameRect().y());
+
+    QPixmap qtDrawable = QPixmap::fromX11Pixmap(m_drawable, QPixmap::ExplicitlyShared);
+    const int drawableDepth = ((NPSetWindowCallbackStruct*)m_npWindow.ws_info)->depth;
+    ASSERT(drawableDepth == qtDrawable.depth());
+
+    // When printing, Qt uses a QPicture to capture the output in preview mode. The
+    // QPicture holds a reference to the X Pixmap. As a result, the print preview would
+    // update itself when the X Pixmap changes. To prevent this, we create a copy.
+    if (m_element->document()->printing())
+        qtDrawable = qtDrawable.copy();
+
+    if (m_isTransparent && drawableDepth != 32) {
+        // Attempt content propagation for drawable with no alpha by copying over from the backing store
+        QPoint offset;
+        QPaintDevice* backingStoreDevice =  QPainter::redirected(painter->device(), &offset);
+        offset = -offset; // negating the offset gives us the offset of the view within the backing store pixmap
+
+        const bool hasValidBackingStore = backingStoreDevice && backingStoreDevice->devType() == QInternal::Pixmap;
+        QPixmap* backingStorePixmap = static_cast<QPixmap*>(backingStoreDevice);
+
+        // We cannot grab contents from the backing store when painting on QGraphicsView items
+        // (because backing store contents are already transformed). What we really mean to do 
+        // here is to check if we are painting on QWebView, but let's be a little permissive :)
+        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
+        const bool backingStoreHasUntransformedContents = client && qobject_cast<QWidget*>(client->pluginParent());
+
+        if (hasValidBackingStore && backingStorePixmap->depth() == drawableDepth 
+            && backingStoreHasUntransformedContents) {
+            GC gc = XDefaultGC(QX11Info::display(), QX11Info::appScreen());
+            XCopyArea(QX11Info::display(), backingStorePixmap->handle(), m_drawable, gc,
+                offset.x() + m_windowRect.x() + exposedRect.x(), offset.y() + m_windowRect.y() + exposedRect.y(),
+                exposedRect.width(), exposedRect.height(), exposedRect.x(), exposedRect.y());
+        } else { // no backing store, clean the pixmap because the plugin thinks its transparent
+            QPainter painter(&qtDrawable);
+            painter.fillRect(exposedRect, Qt::white);
+        }
+
+        if (syncX)
+            QApplication::syncX();
+    }
+
+    XEvent xevent;
+    memset(&xevent, 0, sizeof(XEvent));
+    XGraphicsExposeEvent& exposeEvent = xevent.xgraphicsexpose;
+    exposeEvent.type = GraphicsExpose;
+    exposeEvent.display = QX11Info::display();
+    exposeEvent.drawable = qtDrawable.handle();
+    exposeEvent.x = exposedRect.x();
+    exposeEvent.y = exposedRect.y();
+    exposeEvent.width = exposedRect.x() + exposedRect.width(); // flash bug? it thinks width is the right in transparent mode
+    exposeEvent.height = exposedRect.y() + exposedRect.height(); // flash bug? it thinks height is the bottom in transparent mode
+
+    dispatchNPEvent(xevent);
+
+    if (syncX)
+        XSync(m_pluginDisplay, False); // sync changes by plugin
+
+    painter->drawPixmap(QPoint(frameRect().x() + exposedRect.x(), frameRect().y() + exposedRect.y()), qtDrawable,
+                        exposedRect);
+}
+
+// TODO: Unify across ports.
+bool PluginView::dispatchNPEvent(NPEvent& event)
+{
+    if (!m_plugin->pluginFuncs()->event)
+        return false;
+
+    PluginView::setCurrentPluginView(this);
+    JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
+    setCallingPlugin(true);
+    bool accepted = m_plugin->pluginFuncs()->event(m_instance, &event);
+    setCallingPlugin(false);
+    PluginView::setCurrentPluginView(0);
+
+    return accepted;
+}
+
+void setSharedXEventFields(XEvent* xEvent, QWidget* ownerWidget)
+{
+    xEvent->xany.serial = 0; // we are unaware of the last request processed by X Server
+    xEvent->xany.send_event = false;
+    xEvent->xany.display = QX11Info::display();
+    // NOTE: event->xany.window doesn't always respond to the .window property of other XEvent's
+    // but does in the case of KeyPress, KeyRelease, ButtonPress, ButtonRelease, and MotionNotify
+    // events; thus, this is right:
+    xEvent->xany.window = ownerWidget ? ownerWidget->window()->handle() : 0;
+}
+
+void PluginView::initXEvent(XEvent* xEvent)
+{
+    memset(xEvent, 0, sizeof(XEvent));
+
+    QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
+    QWidget* ownerWidget = client ? client->ownerWidget() : 0;
+    setSharedXEventFields(xEvent, ownerWidget);
+}
+
+void setXKeyEventSpecificFields(XEvent* xEvent, KeyboardEvent* event)
+{
+    QKeyEvent* qKeyEvent = event->keyEvent()->qtEvent();
+
+    xEvent->type = (event->type() == eventNames().keydownEvent) ? 2 : 3; // ints as Qt unsets KeyPress and KeyRelease
+    xEvent->xkey.root = QX11Info::appRootWindow();
+    xEvent->xkey.subwindow = 0; // we have no child window
+    xEvent->xkey.time = event->timeStamp();
+    xEvent->xkey.state = qKeyEvent->nativeModifiers();
+    xEvent->xkey.keycode = qKeyEvent->nativeScanCode();
+    xEvent->xkey.same_screen = true;
+
+    // NOTE: As the XEvents sent to the plug-in are synthesized and there is not a native window
+    // corresponding to the plug-in rectangle, some of the members of the XEvent structures are not
+    // set to their normal Xserver values. e.g. Key events don't have a position.
+    // source: https://developer.mozilla.org/en/NPEvent
+    xEvent->xkey.x = 0;
+    xEvent->xkey.y = 0;
+    xEvent->xkey.x_root = 0;
+    xEvent->xkey.y_root = 0;
+}
+
+void PluginView::handleKeyboardEvent(KeyboardEvent* event)
+{
+    if (m_isWindowed)
+        return;
+
+    if (event->type() != eventNames().keydownEvent && event->type() != eventNames().keyupEvent)
+        return;
+
+    XEvent npEvent;
+    initXEvent(&npEvent);
+    setXKeyEventSpecificFields(&npEvent, event);
+
+    if (!dispatchNPEvent(npEvent))
+        event->setDefaultHandled();
+}
+
+static unsigned int inputEventState(MouseEvent* event)
+{
+    unsigned int state = 0;
+    if (event->ctrlKey())
+        state |= ControlMask;
+    if (event->shiftKey())
+        state |= ShiftMask;
+    if (event->altKey())
+        state |= Mod1Mask;
+    if (event->metaKey())
+        state |= Mod4Mask;
+    return state;
+}
+
+static void setXButtonEventSpecificFields(XEvent* xEvent, MouseEvent* event, const IntPoint& postZoomPos)
+{
+    XButtonEvent& xbutton = xEvent->xbutton;
+    xbutton.type = event->type() == eventNames().mousedownEvent ? ButtonPress : ButtonRelease;
+    xbutton.root = QX11Info::appRootWindow();
+    xbutton.subwindow = 0;
+    xbutton.time = event->timeStamp();
+    xbutton.x = postZoomPos.x();
+    xbutton.y = postZoomPos.y();
+    xbutton.x_root = event->screenX();
+    xbutton.y_root = event->screenY();
+    xbutton.state = inputEventState(event);
+    switch (event->button()) {
+    case MiddleButton:
+        xbutton.button = Button2;
+        break;
+    case RightButton:
+        xbutton.button = Button3;
+        break;
+    case LeftButton:
+    default:
+        xbutton.button = Button1;
+        break;
+    }
+    xbutton.same_screen = true;
+}
+
+static void setXMotionEventSpecificFields(XEvent* xEvent, MouseEvent* event, const IntPoint& postZoomPos)
+{
+    XMotionEvent& xmotion = xEvent->xmotion;
+    xmotion.type = MotionNotify;
+    xmotion.root = QX11Info::appRootWindow();
+    xmotion.subwindow = 0;
+    xmotion.time = event->timeStamp();
+    xmotion.x = postZoomPos.x();
+    xmotion.y = postZoomPos.y();
+    xmotion.x_root = event->screenX();
+    xmotion.y_root = event->screenY();
+    xmotion.state = inputEventState(event);
+    xmotion.is_hint = NotifyNormal;
+    xmotion.same_screen = true;
+}
+
+static void setXCrossingEventSpecificFields(XEvent* xEvent, MouseEvent* event, const IntPoint& postZoomPos)
+{
+    XCrossingEvent& xcrossing = xEvent->xcrossing;
+    xcrossing.type = event->type() == eventNames().mouseoverEvent ? EnterNotify : LeaveNotify;
+    xcrossing.root = QX11Info::appRootWindow();
+    xcrossing.subwindow = 0;
+    xcrossing.time = event->timeStamp();
+    xcrossing.x = postZoomPos.y();
+    xcrossing.y = postZoomPos.x();
+    xcrossing.x_root = event->screenX();
+    xcrossing.y_root = event->screenY();
+    xcrossing.state = inputEventState(event);
+    xcrossing.mode = NotifyNormal;
+    xcrossing.detail = NotifyDetailNone;
+    xcrossing.same_screen = true;
+    xcrossing.focus = false;
+}
+
+void PluginView::handleMouseEvent(MouseEvent* event)
+{
+    if (m_isWindowed)
+        return;
+
+    if (event->type() == eventNames().mousedownEvent) {
+        // Give focus to the plugin on click
+        if (Page* page = m_parentFrame->page())
+            page->focusController()->setActive(true);
+
+        focusPluginElement();
+    }
+
+    XEvent npEvent;
+    initXEvent(&npEvent);
+
+    IntPoint postZoomPos = roundedIntPoint(m_element->renderer()->absoluteToLocal(event->absoluteLocation()));
+
+    if (event->type() == eventNames().mousedownEvent || event->type() == eventNames().mouseupEvent)
+        setXButtonEventSpecificFields(&npEvent, event, postZoomPos);
+    else if (event->type() == eventNames().mousemoveEvent)
+        setXMotionEventSpecificFields(&npEvent, event, postZoomPos);
+    else if (event->type() == eventNames().mouseoutEvent || event->type() == eventNames().mouseoverEvent)
+        setXCrossingEventSpecificFields(&npEvent, event, postZoomPos);
+    else
+        return;
+
+    if (!dispatchNPEvent(npEvent))
+        event->setDefaultHandled();
+}
+
+void PluginView::handleFocusInEvent()
+{
+    XEvent npEvent;
+    initXEvent(&npEvent);
+
+    XFocusChangeEvent& event = npEvent.xfocus;
+    event.type = 9; /* int as Qt unsets FocusIn */
+    event.mode = NotifyNormal;
+    event.detail = NotifyDetailNone;
+
+    dispatchNPEvent(npEvent);
+}
+
+void PluginView::handleFocusOutEvent()
+{
+    XEvent npEvent;
+    initXEvent(&npEvent);
+
+    XFocusChangeEvent& event = npEvent.xfocus;
+    event.type = 10; /* int as Qt unsets FocusOut */
+    event.mode = NotifyNormal;
+    event.detail = NotifyDetailNone;
+
+    dispatchNPEvent(npEvent);
+}
+
+void PluginView::setParent(ScrollView* parent)
+{
+    Widget::setParent(parent);
+
+    if (parent)
+        init();
+}
+
+void PluginView::setNPWindowRect(const IntRect&)
+{
+    if (!m_isWindowed)
+        setNPWindowIfNeeded();
+}
+
+void PluginView::setNPWindowIfNeeded()
+{
+    if (!m_isStarted || !parent() || !m_plugin->pluginFuncs()->setwindow)
+        return;
+
+    // If the plugin didn't load sucessfully, no point in calling setwindow
+    if (m_status != PluginStatusLoadedSuccessfully)
+        return;
+
+    // On Unix, only call plugin if it's full-page or windowed
+    if (m_mode != NP_FULL && m_mode != NP_EMBED)
+        return;
+
+    // Check if the platformPluginWidget still exists
+    if (m_isWindowed && !platformPluginWidget())
+        return;
+
+    if (!m_hasPendingGeometryChange)
+        return;
+    m_hasPendingGeometryChange = false;
+
+    if (m_isWindowed) {
+        platformPluginWidget()->setGeometry(m_windowRect);
+        // if setMask is set with an empty QRegion, no clipping will
+        // be performed, so in that case we hide the plugin view
+        platformPluginWidget()->setVisible(!m_clipRect.isEmpty());
+        platformPluginWidget()->setMask(QRegion(m_clipRect));
+
+        m_npWindow.x = m_windowRect.x();
+        m_npWindow.y = m_windowRect.y();
+
+        m_npWindow.clipRect.left = max(0, m_clipRect.x());
+        m_npWindow.clipRect.top = max(0, m_clipRect.y());
+        m_npWindow.clipRect.right = m_clipRect.x() + m_clipRect.width();
+        m_npWindow.clipRect.bottom = m_clipRect.y() + m_clipRect.height();
+    } else {
+        m_npWindow.x = 0;
+        m_npWindow.y = 0;
+
+        m_npWindow.clipRect.left = 0;
+        m_npWindow.clipRect.top = 0;
+        m_npWindow.clipRect.right = 0;
+        m_npWindow.clipRect.bottom = 0;
+    }
+
+    if (m_plugin->quirks().contains(PluginQuirkDontCallSetWindowMoreThanOnce)) {
+        // FLASH WORKAROUND: Only set initially. Multiple calls to
+        // setNPWindow() cause the plugin to crash in windowed mode.
+        if (!m_isWindowed || m_npWindow.width == -1 || m_npWindow.height == -1) {
+            m_npWindow.width = m_windowRect.width();
+            m_npWindow.height = m_windowRect.height();
+        }
+    } else {
+        m_npWindow.width = m_windowRect.width();
+        m_npWindow.height = m_windowRect.height();
+    }
+
+    PluginView::setCurrentPluginView(this);
+    JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
+    setCallingPlugin(true);
+    m_plugin->pluginFuncs()->setwindow(m_instance, &m_npWindow);
+    setCallingPlugin(false);
+    PluginView::setCurrentPluginView(0);
+}
+
+void PluginView::setParentVisible(bool visible)
+{
+    if (isParentVisible() == visible)
+        return;
+
+    Widget::setParentVisible(visible);
+
+    if (isSelfVisible() && platformPluginWidget())
+        platformPluginWidget()->setVisible(visible);
+}
+
+NPError PluginView::handlePostReadFile(Vector<char>& buffer, uint32_t len, const char* buf)
+{
+    String filename(buf, len);
+
+    if (filename.startsWith("file:///"))
+        filename = filename.substring(8);
+
+    long long size;
+    if (!getFileSize(filename, size))
+        return NPERR_FILE_NOT_FOUND;
+
+    FILE* fileHandle = fopen((filename.utf8()).data(), "r");
+    if (!fileHandle)
+        return NPERR_FILE_NOT_FOUND;
+
+    buffer.resize(size);
+    int bytesRead = fread(buffer.data(), 1, size, fileHandle);
+
+    fclose(fileHandle);
+
+    if (bytesRead <= 0)
+        return NPERR_FILE_NOT_FOUND;
+
+    return NPERR_NO_ERROR;
+}
+
+bool PluginView::platformGetValueStatic(NPNVariable variable, void* value, NPError* result)
+{
+    switch (variable) {
+    case NPNVToolkit:
+        *static_cast<uint32_t*>(value) = 0;
+        *result = NPERR_NO_ERROR;
+        return true;
+
+    case NPNVSupportsXEmbedBool:
+        *static_cast<NPBool*>(value) = true;
+        *result = NPERR_NO_ERROR;
+        return true;
+
+    case NPNVjavascriptEnabledBool:
+        *static_cast<NPBool*>(value) = true;
+        *result = NPERR_NO_ERROR;
+        return true;
+
+    case NPNVSupportsWindowless:
+        *static_cast<NPBool*>(value) = true;
+        *result = NPERR_NO_ERROR;
+        return true;
+
+    default:
+        return false;
+    }
+}
+
+bool PluginView::platformGetValue(NPNVariable variable, void* value, NPError* result)
+{
+    switch (variable) {
+    case NPNVxDisplay:
+        *(void **)value = QX11Info::display();
+        *result = NPERR_NO_ERROR;
+        return true;
+
+    case NPNVxtAppContext:
+        *result = NPERR_GENERIC_ERROR;
+        return true;
+
+    case NPNVnetscapeWindow: {
+        void* w = reinterpret_cast<void*>(value);
+        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
+        *((XID *)w) = client ? client->ownerWidget()->window()->winId() : 0;
+        *result = NPERR_NO_ERROR;
+        return true;
+    }
+
+    case NPNVToolkit:
+        if (m_plugin->quirks().contains(PluginQuirkRequiresGtkToolKit)) {
+            *((uint32_t *)value) = 2;
+            *result = NPERR_NO_ERROR;
+            return true;
+        }
+        return false;
+
+    default:
+        return false;
+    }
+}
+
+void PluginView::invalidateRect(const IntRect& rect)
+{
+    if (m_isWindowed) {
+        if (platformWidget())
+            platformWidget()->update(rect);
+        return;
+    }
+
+    invalidateWindowlessPluginRect(rect);
+}
+
+void PluginView::invalidateRect(NPRect* rect)
+{
+    if (!rect) {
+        invalidate();
+        return;
+    }
+    IntRect r(rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top);
+    invalidateWindowlessPluginRect(r);
+}
+
+void PluginView::invalidateRegion(NPRegion region)
+{
+    invalidate();
+}
+
+void PluginView::forceRedraw()
+{
+    invalidate();
+}
+
+static Display *getPluginDisplay()
+{
+    // The plugin toolkit might run using a different X connection. At the moment, we only
+    // support gdk based plugins (like flash) that use a different X connection.
+    // The code below has the same effect as this one:
+    // Display *gdkDisplay = gdk_x11_display_get_xdisplay(gdk_display_get_default());
+    QLibrary library("libgdk-x11-2.0");
+    if (!library.load())
+        return 0;
+
+    typedef void *(*gdk_display_get_default_ptr)();
+    gdk_display_get_default_ptr gdk_display_get_default = (gdk_display_get_default_ptr)library.resolve("gdk_display_get_default");
+    if (!gdk_display_get_default)
+        return 0;
+
+    typedef void *(*gdk_x11_display_get_xdisplay_ptr)(void *);
+    gdk_x11_display_get_xdisplay_ptr gdk_x11_display_get_xdisplay = (gdk_x11_display_get_xdisplay_ptr)library.resolve("gdk_x11_display_get_xdisplay");
+    if (!gdk_x11_display_get_xdisplay)
+        return 0;
+
+    return (Display*)gdk_x11_display_get_xdisplay(gdk_display_get_default());
+}
+
+static void getVisualAndColormap(int depth, Visual **visual, Colormap *colormap)
+{
+    *visual = 0;
+    *colormap = 0;
+
+#ifndef QT_NO_XRENDER
+    static const bool useXRender = qgetenv("QT_X11_NO_XRENDER").isNull(); // Should also check for XRender >= 0.5
+#else
+    static const bool useXRender = false;
+#endif
+
+    if (!useXRender && depth == 32)
+        return;
+
+    int nvi;
+    XVisualInfo templ;
+    templ.screen  = QX11Info::appScreen();
+    templ.depth   = depth;
+    templ.c_class = TrueColor;
+    XVisualInfo* xvi = XGetVisualInfo(QX11Info::display(), VisualScreenMask | VisualDepthMask | VisualClassMask, &templ, &nvi);
+
+    if (!xvi)
+        return;
+
+#ifndef QT_NO_XRENDER
+    if (depth == 32) {
+        for (int idx = 0; idx < nvi; ++idx) {
+            XRenderPictFormat* format = XRenderFindVisualFormat(QX11Info::display(), xvi[idx].visual);
+            if (format->type == PictTypeDirect && format->direct.alphaMask) {
+                 *visual = xvi[idx].visual;
+                 break;
+            }
+         }
+    } else
+#endif // QT_NO_XRENDER
+        *visual = xvi[0].visual;
+
+    XFree(xvi);
+
+    if (*visual)
+        *colormap = XCreateColormap(QX11Info::display(), QX11Info::appRootWindow(), *visual, AllocNone);
+}
+
+bool PluginView::platformStart()
+{
+    ASSERT(m_isStarted);
+    ASSERT(m_status == PluginStatusLoadedSuccessfully);
+
+    if (m_plugin->pluginFuncs()->getvalue) {
+        PluginView::setCurrentPluginView(this);
+        JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
+        setCallingPlugin(true);
+        m_plugin->pluginFuncs()->getvalue(m_instance, NPPVpluginNeedsXEmbed, &m_needsXEmbed);
+        setCallingPlugin(false);
+        PluginView::setCurrentPluginView(0);
+    }
+
+    if (m_isWindowed) {
+        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
+        if (m_needsXEmbed && client) {
+            setPlatformWidget(new PluginContainerQt(this, client->ownerWidget()));
+            // sync our XEmbed container window creation before sending the xid to plugins.
+            QApplication::syncX();
+        } else {
+            notImplemented();
+            m_status = PluginStatusCanNotLoadPlugin;
+            return false;
+        }
+    } else {
+        setPlatformWidget(0);
+        m_pluginDisplay = getPluginDisplay();
+    }
+
+    show();
+
+    NPSetWindowCallbackStruct* wsi = new NPSetWindowCallbackStruct();
+    wsi->type = 0;
+
+    if (m_isWindowed) {
+        const QX11Info* x11Info = &platformPluginWidget()->x11Info();
+
+        wsi->display = x11Info->display();
+        wsi->visual = (Visual*)x11Info->visual();
+        wsi->depth = x11Info->depth();
+        wsi->colormap = x11Info->colormap();
+
+        m_npWindow.type = NPWindowTypeWindow;
+        m_npWindow.window = (void*)platformPluginWidget()->winId();
+        m_npWindow.width = -1;
+        m_npWindow.height = -1;
+    } else {
+        const QX11Info* x11Info = &QApplication::desktop()->x11Info();
+
+        if (x11Info->depth() == 32 || !m_plugin->quirks().contains(PluginQuirkRequiresDefaultScreenDepth)) {
+            getVisualAndColormap(32, &m_visual, &m_colormap);
+            wsi->depth = 32;
+        }
+
+        if (!m_visual) {
+            getVisualAndColormap(x11Info->depth(), &m_visual, &m_colormap);
+            wsi->depth = x11Info->depth();
+        }
+
+        wsi->display = x11Info->display();
+        wsi->visual = m_visual;
+        wsi->colormap = m_colormap;
+
+        m_npWindow.type = NPWindowTypeDrawable;
+        m_npWindow.window = 0; // Not used?
+        m_npWindow.x = 0;
+        m_npWindow.y = 0;
+        m_npWindow.width = -1;
+        m_npWindow.height = -1;
+    }
+
+    m_npWindow.ws_info = wsi;
+
+    if (!(m_plugin->quirks().contains(PluginQuirkDeferFirstSetWindowCall))) {
+        updatePluginWidget();
+        setNPWindowIfNeeded();
+    }
+
+    return true;
+}
+
+void PluginView::platformDestroy()
+{
+    if (platformPluginWidget())
+        delete platformPluginWidget();
+
+    if (m_drawable)
+        XFreePixmap(QX11Info::display(), m_drawable);
+
+    if (m_colormap)
+        XFreeColormap(QX11Info::display(), m_colormap);
+}
+
+void PluginView::halt()
+{
+}
+
+void PluginView::restart()
+{
+}
+
+} // namespace WebCore