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gecko-dev/layout/generic/nsObjectFrame.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:set ts=2 sts=2 sw=2 et cin:
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* rendering objects for replaced elements implemented by a plugin */
#include "mozilla/plugins/PluginMessageUtils.h"
#include "nscore.h"
#include "nsCOMPtr.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsWidgetsCID.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsIDOMEventListener.h"
#include "nsIDOMDragEvent.h"
#include "nsPluginHost.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "prmem.h"
#include "nsGkAtoms.h"
#include "nsIAppShell.h"
#include "nsIDocument.h"
#include "nsINodeInfo.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsIPluginInstanceOwner.h"
#include "nsNPAPIPluginInstance.h"
#include "nsIPluginTagInfo.h"
#include "plstr.h"
#include "nsILinkHandler.h"
#include "nsIScrollPositionListener.h"
#include "nsITimer.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "nsDocShellCID.h"
#include "nsIWebBrowserChrome.h"
#include "nsIDOMElement.h"
#include "nsIDOMNodeList.h"
#include "nsIDOMHTMLObjectElement.h"
#include "nsIDOMHTMLEmbedElement.h"
#include "nsIDOMHTMLAppletElement.h"
#include "nsIDOMWindow.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOMNSEvent.h"
#include "nsIDocumentEncoder.h"
#include "nsXPIDLString.h"
#include "nsIDOMRange.h"
#include "nsIPluginWidget.h"
#include "nsGUIEvent.h"
#include "nsRenderingContext.h"
#include "npapi.h"
#include "nsTransform2D.h"
#include "nsIImageLoadingContent.h"
#include "nsIObjectLoadingContent.h"
#include "nsPIDOMWindow.h"
#include "nsContentUtils.h"
#include "nsDisplayList.h"
#include "nsAttrName.h"
#include "nsDataHashtable.h"
#include "nsDOMClassInfo.h"
#include "nsFocusManager.h"
#include "nsLayoutUtils.h"
#include "nsFrameManager.h"
#include "nsComponentManagerUtils.h"
#include "nsIObserverService.h"
#include "nsIScrollableFrame.h"
#include "mozilla/Preferences.h"
#include "sampler.h"
// headers for plugin scriptability
#include "nsIScriptGlobalObject.h"
#include "nsIScriptContext.h"
#include "nsIXPConnect.h"
#include "nsIXPCScriptable.h"
#include "nsIClassInfo.h"
#include "nsIDOMClientRect.h"
#include "nsObjectFrame.h"
#include "nsIObjectFrame.h"
#include "nsPluginNativeWindow.h"
#include "nsIPluginDocument.h"
#include "FrameLayerBuilder.h"
#include "nsThreadUtils.h"
#include "gfxContext.h"
#include "gfxPlatform.h"
#ifdef XP_WIN
#include "gfxWindowsNativeDrawing.h"
#include "gfxWindowsSurface.h"
#endif
#include "gfxImageSurface.h"
#include "gfxUtils.h"
#include "Layers.h"
#include "ReadbackLayer.h"
// accessibility support
#ifdef ACCESSIBILITY
#include "nsAccessibilityService.h"
#endif
#ifdef MOZ_LOGGING
#define FORCE_PR_LOG 1 /* Allow logging in the release build */
#endif /* MOZ_LOGGING */
#include "prlog.h"
#include <errno.h>
#include "nsContentCID.h"
static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
#ifdef XP_MACOSX
#include "gfxQuartzNativeDrawing.h"
#include "nsPluginUtilsOSX.h"
#include "nsCoreAnimationSupport.h"
#endif
#ifdef MOZ_WIDGET_GTK2
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include "gfxXlibNativeRenderer.h"
#endif
#ifdef MOZ_X11
#include "mozilla/X11Util.h"
using mozilla::DefaultXDisplay;
#endif
#ifdef XP_WIN
#include <wtypes.h>
#include <winuser.h>
#endif
#ifdef XP_OS2
#define INCL_PM
#define INCL_GPI
#include <os2.h>
#include "gfxOS2Surface.h"
#endif
#ifdef CreateEvent // Thank you MS.
#undef CreateEvent
#endif
#ifdef PR_LOGGING
static PRLogModuleInfo *nsObjectFrameLM = PR_NewLogModule("nsObjectFrame");
#endif /* PR_LOGGING */
#if defined(XP_MACOSX) && !defined(NP_NO_CARBON)
#define MAC_CARBON_PLUGINS
// The header files QuickdrawAPI.h and QDOffscreen.h are missing on OS X 10.7
// and up (though the QuickDraw APIs defined in them are still present) -- so
// we need to supply the relevant parts of their contents here. It's likely
// that Apple will eventually remove the APIs themselves (probably in OS X
// 10.8), so we need to make them weak imports, and test for their presence
// before using them.
extern "C" {
#if !defined(__QUICKDRAWAPI__)
extern void SetRect(
Rect * r,
short left,
short top,
short right,
short bottom)
__attribute__((weak_import));
#endif /* __QUICKDRAWAPI__ */
#if !defined(__QDOFFSCREEN__)
extern QDErr NewGWorldFromPtr(
GWorldPtr * offscreenGWorld,
UInt32 PixelFormat,
const Rect * boundsRect,
CTabHandle cTable, /* can be NULL */
GDHandle aGDevice, /* can be NULL */
GWorldFlags flags,
Ptr newBuffer,
SInt32 rowBytes)
__attribute__((weak_import));
extern void DisposeGWorld(GWorldPtr offscreenGWorld)
__attribute__((weak_import));
#endif /* __QDOFFSCREEN__ */
}
#endif /* #if defined(XP_MACOSX) && !defined(NP_NO_CARBON) */
using namespace mozilla;
using namespace mozilla::plugins;
using namespace mozilla::layers;
class PluginBackgroundSink : public ReadbackSink {
public:
PluginBackgroundSink(nsObjectFrame* aFrame, PRUint64 aStartSequenceNumber)
: mLastSequenceNumber(aStartSequenceNumber), mFrame(aFrame) {}
~PluginBackgroundSink()
{
if (mFrame) {
mFrame->mBackgroundSink = nsnull;
}
}
virtual void SetUnknown(PRUint64 aSequenceNumber)
{
if (!AcceptUpdate(aSequenceNumber))
return;
mFrame->mInstanceOwner->SetBackgroundUnknown();
}
virtual already_AddRefed<gfxContext>
BeginUpdate(const nsIntRect& aRect, PRUint64 aSequenceNumber)
{
if (!AcceptUpdate(aSequenceNumber))
return nsnull;
return mFrame->mInstanceOwner->BeginUpdateBackground(aRect);
}
virtual void EndUpdate(gfxContext* aContext, const nsIntRect& aRect)
{
return mFrame->mInstanceOwner->EndUpdateBackground(aContext, aRect);
}
void Destroy() { mFrame = nsnull; }
protected:
bool AcceptUpdate(PRUint64 aSequenceNumber) {
if (aSequenceNumber > mLastSequenceNumber && mFrame &&
mFrame->mInstanceOwner) {
mLastSequenceNumber = aSequenceNumber;
return true;
}
return false;
}
PRUint64 mLastSequenceNumber;
nsObjectFrame* mFrame;
};
nsObjectFrame::nsObjectFrame(nsStyleContext* aContext)
: nsObjectFrameSuper(aContext)
, mReflowCallbackPosted(false)
{
PR_LOG(nsObjectFrameLM, PR_LOG_DEBUG,
("Created new nsObjectFrame %p\n", this));
}
nsObjectFrame::~nsObjectFrame()
{
PR_LOG(nsObjectFrameLM, PR_LOG_DEBUG,
("nsObjectFrame %p deleted\n", this));
}
NS_QUERYFRAME_HEAD(nsObjectFrame)
NS_QUERYFRAME_ENTRY(nsIObjectFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsObjectFrameSuper)
#ifdef ACCESSIBILITY
already_AddRefed<Accessible>
nsObjectFrame::CreateAccessible()
{
nsAccessibilityService* accService = nsIPresShell::AccService();
return accService ?
accService->CreateHTMLObjectFrameAccessible(this, mContent,
PresContext()->PresShell()) :
nsnull;
}
#ifdef XP_WIN
NS_IMETHODIMP nsObjectFrame::GetPluginPort(HWND *aPort)
{
*aPort = (HWND) mInstanceOwner->GetPluginPortFromWidget();
return NS_OK;
}
#endif
#endif
NS_IMETHODIMP
nsObjectFrame::Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow)
{
PR_LOG(nsObjectFrameLM, PR_LOG_DEBUG,
("Initializing nsObjectFrame %p for content %p\n", this, aContent));
nsresult rv = nsObjectFrameSuper::Init(aContent, aParent, aPrevInFlow);
return rv;
}
void
nsObjectFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
if (mReflowCallbackPosted) {
PresContext()->PresShell()->CancelReflowCallback(this);
}
// Tell content owner of the instance to disconnect its frame.
nsCOMPtr<nsIObjectLoadingContent> objContent(do_QueryInterface(mContent));
NS_ASSERTION(objContent, "Why not an object loading content?");
objContent->DisconnectFrame();
if (mBackgroundSink) {
mBackgroundSink->Destroy();
}
if (mInstanceOwner) {
mInstanceOwner->SetFrame(nsnull);
}
SetInstanceOwner(nsnull);
nsObjectFrameSuper::DestroyFrom(aDestructRoot);
}
/* virtual */ void
nsObjectFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
{
if (HasView()) {
nsIView* view = GetView();
nsIViewManager* vm = view->GetViewManager();
if (vm) {
nsViewVisibility visibility =
IsHidden() ? nsViewVisibility_kHide : nsViewVisibility_kShow;
vm->SetViewVisibility(view, visibility);
}
}
nsObjectFrameSuper::DidSetStyleContext(aOldStyleContext);
}
nsIAtom*
nsObjectFrame::GetType() const
{
return nsGkAtoms::objectFrame;
}
#ifdef DEBUG
NS_IMETHODIMP
nsObjectFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("ObjectFrame"), aResult);
}
#endif
nsresult
nsObjectFrame::PrepForDrawing(nsIWidget *aWidget)
{
mWidget = aWidget;
nsIView* view = GetView();
NS_ASSERTION(view, "Object frames must have views");
if (!view) {
return NS_ERROR_FAILURE;
}
nsIViewManager* viewMan = view->GetViewManager();
// mark the view as hidden since we don't know the (x,y) until Paint
// XXX is the above comment correct?
viewMan->SetViewVisibility(view, nsViewVisibility_kHide);
//this is ugly. it was ripped off from didreflow(). MMP
// Position and size view relative to its parent, not relative to our
// parent frame (our parent frame may not have a view).
nsIView* parentWithView;
nsPoint origin;
nsRect r(0, 0, mRect.width, mRect.height);
GetOffsetFromView(origin, &parentWithView);
viewMan->ResizeView(view, r);
viewMan->MoveViewTo(view, origin.x, origin.y);
nsRootPresContext* rpc = PresContext()->GetRootPresContext();
if (!rpc) {
return NS_ERROR_FAILURE;
}
if (mWidget) {
// XXX this breaks plugins in popups ... do we care?
nsIWidget* parentWidget = rpc->PresShell()->FrameManager()->GetRootFrame()->GetNearestWidget();
if (!parentWidget) {
return NS_ERROR_FAILURE;
}
mInnerView = viewMan->CreateView(GetContentRectRelativeToSelf(), view);
if (!mInnerView) {
NS_ERROR("Could not create inner view");
return NS_ERROR_OUT_OF_MEMORY;
}
viewMan->InsertChild(view, mInnerView, nsnull, true);
mWidget->SetParent(parentWidget);
mWidget->Show(true);
mWidget->Enable(true);
// Set the plugin window to have an empty cliprect. The cliprect
// will be reset when nsRootPresContext::UpdatePluginGeometry
// runs later. The plugin window does need to have the correct
// size here. GetEmptyClipConfiguration will probably give it the
// size, but just in case we haven't been reflowed or something, set
// the size explicitly.
nsAutoTArray<nsIWidget::Configuration,1> configuration;
GetEmptyClipConfiguration(&configuration);
NS_ASSERTION(configuration.Length() > 0, "Empty widget configuration array!");
configuration[0].mBounds.width = mRect.width;
configuration[0].mBounds.height = mRect.height;
parentWidget->ConfigureChildren(configuration);
nsRefPtr<nsDeviceContext> dx;
viewMan->GetDeviceContext(*getter_AddRefs(dx));
EVENT_CALLBACK eventHandler = mInnerView->AttachWidgetEventHandler(mWidget);
mWidget->SetEventCallback(eventHandler, dx);
#ifdef XP_MACOSX
// On Mac, we need to invalidate ourselves since even windowed
// plugins are painted through Thebes and we need to ensure
// the Thebes layer containing the plugin is updated.
if (parentWidget == GetNearestWidget()) {
Invalidate(GetContentRectRelativeToSelf());
}
#endif
rpc->RegisterPluginForGeometryUpdates(this);
rpc->RequestUpdatePluginGeometry(this);
// Here we set the background color for this widget because some plugins will use
// the child window background color when painting. If it's not set, it may default to gray
// Sometimes, a frame doesn't have a background color or is transparent. In this
// case, walk up the frame tree until we do find a frame with a background color
for (nsIFrame* frame = this; frame; frame = frame->GetParent()) {
nscolor bgcolor =
frame->GetVisitedDependentColor(eCSSProperty_background_color);
if (NS_GET_A(bgcolor) > 0) { // make sure we got an actual color
mWidget->SetBackgroundColor(bgcolor);
break;
}
}
} else {
// Changing to windowless mode changes the NPWindow geometry.
FixupWindow(GetContentRectRelativeToSelf().Size());
#ifndef XP_MACOSX
rpc->RegisterPluginForGeometryUpdates(this);
rpc->RequestUpdatePluginGeometry(this);
#endif
}
if (!IsHidden()) {
viewMan->SetViewVisibility(view, nsViewVisibility_kShow);
}
#ifdef ACCESSIBILITY
nsAccessibilityService* accService = nsIPresShell::AccService();
if (accService) {
accService->RecreateAccessible(PresContext()->PresShell(), mContent);
}
#endif
return NS_OK;
}
#define EMBED_DEF_WIDTH 240
#define EMBED_DEF_HEIGHT 200
/* virtual */ nscoord
nsObjectFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
{
nscoord result = 0;
if (!IsHidden(false)) {
nsIAtom *atom = mContent->Tag();
if (atom == nsGkAtoms::applet || atom == nsGkAtoms::embed) {
result = nsPresContext::CSSPixelsToAppUnits(EMBED_DEF_WIDTH);
}
}
DISPLAY_MIN_WIDTH(this, result);
return result;
}
/* virtual */ nscoord
nsObjectFrame::GetPrefWidth(nsRenderingContext *aRenderingContext)
{
return nsObjectFrame::GetMinWidth(aRenderingContext);
}
void
nsObjectFrame::GetDesiredSize(nsPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aMetrics)
{
// By default, we have no area
aMetrics.width = 0;
aMetrics.height = 0;
if (IsHidden(false)) {
return;
}
aMetrics.width = aReflowState.ComputedWidth();
aMetrics.height = aReflowState.ComputedHeight();
// for EMBED and APPLET, default to 240x200 for compatibility
nsIAtom *atom = mContent->Tag();
if (atom == nsGkAtoms::applet || atom == nsGkAtoms::embed) {
if (aMetrics.width == NS_UNCONSTRAINEDSIZE) {
aMetrics.width = clamped(nsPresContext::CSSPixelsToAppUnits(EMBED_DEF_WIDTH),
aReflowState.mComputedMinWidth,
aReflowState.mComputedMaxWidth);
}
if (aMetrics.height == NS_UNCONSTRAINEDSIZE) {
aMetrics.height = clamped(nsPresContext::CSSPixelsToAppUnits(EMBED_DEF_HEIGHT),
aReflowState.mComputedMinHeight,
aReflowState.mComputedMaxHeight);
}
#if defined (MOZ_WIDGET_GTK2)
// We need to make sure that the size of the object frame does not
// exceed the maximum size of X coordinates. See bug #225357 for
// more information. In theory Gtk2 can handle large coordinates,
// but underlying plugins can't.
aMetrics.height = NS_MIN(aPresContext->DevPixelsToAppUnits(PR_INT16_MAX), aMetrics.height);
aMetrics.width = NS_MIN(aPresContext->DevPixelsToAppUnits(PR_INT16_MAX), aMetrics.width);
#endif
}
// At this point, the width has an unconstrained value only if we have
// nothing to go on (no width set, no information from the plugin, nothing).
// Make up a number.
if (aMetrics.width == NS_UNCONSTRAINEDSIZE) {
aMetrics.width =
(aReflowState.mComputedMinWidth != NS_UNCONSTRAINEDSIZE) ?
aReflowState.mComputedMinWidth : 0;
}
// At this point, the height has an unconstrained value only in two cases:
// a) We are in standards mode with percent heights and parent is auto-height
// b) We have no height information at all.
// In either case, we have to make up a number.
if (aMetrics.height == NS_UNCONSTRAINEDSIZE) {
aMetrics.height =
(aReflowState.mComputedMinHeight != NS_UNCONSTRAINEDSIZE) ?
aReflowState.mComputedMinHeight : 0;
}
// XXXbz don't add in the border and padding, because we screw up our
// plugin's size and positioning if we do... Eventually we _do_ want to
// paint borders, though! At that point, we will need to adjust the desired
// size either here or in Reflow.... Further, we will need to fix Paint() to
// call the superclass in all cases.
}
NS_IMETHODIMP
nsObjectFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsObjectFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aMetrics, aStatus);
// Get our desired size
GetDesiredSize(aPresContext, aReflowState, aMetrics);
aMetrics.SetOverflowAreasToDesiredBounds();
FinishAndStoreOverflow(&aMetrics);
// delay plugin instantiation until all children have
// arrived. Otherwise there may be PARAMs or other stuff that the
// plugin needs to see that haven't arrived yet.
if (!GetContent()->IsDoneAddingChildren()) {
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
// if we are printing or print previewing, bail for now
if (aPresContext->Medium() == nsGkAtoms::print) {
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
nsRect r(0, 0, aMetrics.width, aMetrics.height);
r.Deflate(aReflowState.mComputedBorderPadding);
if (mInnerView) {
nsIViewManager* vm = mInnerView->GetViewManager();
vm->MoveViewTo(mInnerView, r.x, r.y);
vm->ResizeView(mInnerView, nsRect(nsPoint(0, 0), r.Size()), true);
}
FixupWindow(r.Size());
if (!mReflowCallbackPosted) {
mReflowCallbackPosted = true;
aPresContext->PresShell()->PostReflowCallback(this);
}
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aMetrics);
return NS_OK;
}
///////////// nsIReflowCallback ///////////////
bool
nsObjectFrame::ReflowFinished()
{
mReflowCallbackPosted = false;
CallSetWindow();
return true;
}
void
nsObjectFrame::ReflowCallbackCanceled()
{
mReflowCallbackPosted = false;
}
void
nsObjectFrame::FixupWindow(const nsSize& aSize)
{
nsPresContext* presContext = PresContext();
if (!mInstanceOwner)
return;
NPWindow *window;
mInstanceOwner->GetWindow(window);
NS_ENSURE_TRUE(window, /**/);
#ifdef XP_MACOSX
nsWeakFrame weakFrame(this);
mInstanceOwner->FixUpPluginWindow(nsPluginInstanceOwner::ePluginPaintDisable);
if (!weakFrame.IsAlive()) {
return;
}
#endif
bool windowless = (window->type == NPWindowTypeDrawable);
nsIntPoint origin = GetWindowOriginInPixels(windowless);
window->x = origin.x;
window->y = origin.y;
window->width = presContext->AppUnitsToDevPixels(aSize.width);
window->height = presContext->AppUnitsToDevPixels(aSize.height);
// on the Mac we need to set the clipRect to { 0, 0, 0, 0 } for now. This will keep
// us from drawing on screen until the widget is properly positioned, which will not
// happen until we have finished the reflow process.
#ifdef XP_MACOSX
window->clipRect.top = 0;
window->clipRect.left = 0;
window->clipRect.bottom = 0;
window->clipRect.right = 0;
#else
mInstanceOwner->UpdateWindowPositionAndClipRect(false);
#endif
NotifyPluginReflowObservers();
}
nsresult
nsObjectFrame::CallSetWindow(bool aCheckIsHidden)
{
NPWindow *win = nsnull;
nsresult rv = NS_ERROR_FAILURE;
nsRefPtr<nsNPAPIPluginInstance> pi;
if (!mInstanceOwner ||
NS_FAILED(rv = mInstanceOwner->GetInstance(getter_AddRefs(pi))) ||
!pi ||
NS_FAILED(rv = mInstanceOwner->GetWindow(win)) ||
!win)
return rv;
nsPluginNativeWindow *window = (nsPluginNativeWindow *)win;
#ifdef XP_MACOSX
nsWeakFrame weakFrame(this);
mInstanceOwner->FixUpPluginWindow(nsPluginInstanceOwner::ePluginPaintDisable);
if (!weakFrame.IsAlive()) {
return NS_ERROR_NOT_AVAILABLE;
}
#endif
if (aCheckIsHidden && IsHidden())
return NS_ERROR_FAILURE;
// refresh the plugin port as well
window->window = mInstanceOwner->GetPluginPortFromWidget();
// Adjust plugin dimensions according to pixel snap results
// and reduce amount of SetWindow calls
nsPresContext* presContext = PresContext();
nsRootPresContext* rootPC = presContext->GetRootPresContext();
if (!rootPC)
return NS_ERROR_FAILURE;
PRInt32 appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
nsIFrame* rootFrame = rootPC->PresShell()->FrameManager()->GetRootFrame();
nsRect bounds = GetContentRectRelativeToSelf() + GetOffsetToCrossDoc(rootFrame);
nsIntRect intBounds = bounds.ToNearestPixels(appUnitsPerDevPixel);
window->x = intBounds.x;
window->y = intBounds.y;
window->width = intBounds.width;
window->height = intBounds.height;
// Calling SetWindow might destroy this frame. We need to use the instance
// owner to clean up so hold a ref.
nsRefPtr<nsPluginInstanceOwner> instanceOwnerRef(mInstanceOwner);
// This will call pi->SetWindow and take care of window subclassing
// if needed, see bug 132759. Calling SetWindow can destroy this frame
// so check for that before doing anything else with this frame's memory.
if (mInstanceOwner->UseAsyncRendering()) {
rv = pi->AsyncSetWindow(window);
}
else {
rv = window->CallSetWindow(pi);
}
instanceOwnerRef->ReleasePluginPort(window->window);
return rv;
}
void
nsObjectFrame::SetInstanceOwner(nsPluginInstanceOwner* aOwner)
{
mInstanceOwner = aOwner;
if (!mInstanceOwner) {
nsRootPresContext* rpc = PresContext()->GetRootPresContext();
if (rpc) {
if (mWidget) {
if (mInnerView) {
mInnerView->DetachWidgetEventHandler(mWidget);
}
rpc->UnregisterPluginForGeometryUpdates(this);
// Make sure the plugin is hidden in case an update of plugin geometry
// hasn't happened since this plugin became hidden.
nsIWidget* parent = mWidget->GetParent();
if (parent) {
nsTArray<nsIWidget::Configuration> configurations;
this->GetEmptyClipConfiguration(&configurations);
parent->ConfigureChildren(configurations);
mWidget->Show(false);
mWidget->Enable(false);
mWidget->SetParent(nsnull);
}
} else {
#ifndef XP_MACOSX
rpc->UnregisterPluginForGeometryUpdates(this);
#endif
}
}
}
}
bool
nsObjectFrame::IsFocusable(PRInt32 *aTabIndex, bool aWithMouse)
{
if (aTabIndex)
*aTabIndex = -1;
return nsObjectFrameSuper::IsFocusable(aTabIndex, aWithMouse);
}
bool
nsObjectFrame::IsHidden(bool aCheckVisibilityStyle) const
{
if (aCheckVisibilityStyle) {
if (!GetStyleVisibility()->IsVisibleOrCollapsed())
return true;
}
// only <embed> tags support the HIDDEN attribute
if (mContent->Tag() == nsGkAtoms::embed) {
// Yes, these are really the kooky ways that you could tell 4.x
// not to hide the <embed> once you'd put the 'hidden' attribute
// on the tag...
// HIDDEN w/ no attributes gets translated as we are hidden for
// compatibility w/ 4.x and IE so we don't create a non-painting
// widget in layout. See bug 188959.
nsAutoString hidden;
if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::hidden, hidden) &&
(hidden.IsEmpty() ||
(!hidden.LowerCaseEqualsLiteral("false") &&
!hidden.LowerCaseEqualsLiteral("no") &&
!hidden.LowerCaseEqualsLiteral("off")))) {
return true;
}
}
return false;
}
nsIntPoint nsObjectFrame::GetWindowOriginInPixels(bool aWindowless)
{
nsIView * parentWithView;
nsPoint origin(0,0);
GetOffsetFromView(origin, &parentWithView);
// if it's windowless, let's make sure we have our origin set right
// it may need to be corrected, like after scrolling
if (aWindowless && parentWithView) {
nsPoint offsetToWidget;
parentWithView->GetNearestWidget(&offsetToWidget);
origin += offsetToWidget;
}
origin += GetContentRectRelativeToSelf().TopLeft();
return nsIntPoint(PresContext()->AppUnitsToDevPixels(origin.x),
PresContext()->AppUnitsToDevPixels(origin.y));
}
NS_IMETHODIMP
nsObjectFrame::DidReflow(nsPresContext* aPresContext,
const nsHTMLReflowState* aReflowState,
nsDidReflowStatus aStatus)
{
// Do this check before calling the superclass, as that clears
// NS_FRAME_FIRST_REFLOW
if (aStatus == NS_FRAME_REFLOW_FINISHED &&
(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
nsCOMPtr<nsIObjectLoadingContent> objContent(do_QueryInterface(mContent));
NS_ASSERTION(objContent, "Why not an object loading content?");
objContent->HasNewFrame(this);
}
nsresult rv = nsObjectFrameSuper::DidReflow(aPresContext, aReflowState, aStatus);
// The view is created hidden; once we have reflowed it and it has been
// positioned then we show it.
if (aStatus != NS_FRAME_REFLOW_FINISHED)
return rv;
if (HasView()) {
nsIView* view = GetView();
nsIViewManager* vm = view->GetViewManager();
if (vm)
vm->SetViewVisibility(view, IsHidden() ? nsViewVisibility_kHide : nsViewVisibility_kShow);
}
return rv;
}
/* static */ void
nsObjectFrame::PaintPrintPlugin(nsIFrame* aFrame, nsRenderingContext* aCtx,
const nsRect& aDirtyRect, nsPoint aPt)
{
nsPoint pt = aPt + aFrame->GetContentRectRelativeToSelf().TopLeft();
nsRenderingContext::AutoPushTranslation translate(aCtx, pt);
// FIXME - Bug 385435: Doesn't aDirtyRect need translating too?
static_cast<nsObjectFrame*>(aFrame)->PrintPlugin(*aCtx, aDirtyRect);
}
class nsDisplayPluginReadback : public nsDisplayItem {
public:
nsDisplayPluginReadback(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
: nsDisplayItem(aBuilder, aFrame)
{
MOZ_COUNT_CTOR(nsDisplayPluginReadback);
}
#ifdef NS_BUILD_REFCNT_LOGGING
virtual ~nsDisplayPluginReadback() {
MOZ_COUNT_DTOR(nsDisplayPluginReadback);
}
#endif
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap);
virtual bool ComputeVisibility(nsDisplayListBuilder* aBuilder,
nsRegion* aVisibleRegion,
const nsRect& aAllowVisibleRegionExpansion);
NS_DISPLAY_DECL_NAME("PluginReadback", TYPE_PLUGIN_READBACK)
virtual already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
LayerManager* aManager,
const ContainerParameters& aContainerParameters)
{
return static_cast<nsObjectFrame*>(mFrame)->BuildLayer(aBuilder, aManager, this);
}
virtual LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
LayerManager* aManager,
const ContainerParameters& aParameters)
{
return LAYER_ACTIVE;
}
};
static nsRect
GetDisplayItemBounds(nsDisplayListBuilder* aBuilder, nsDisplayItem* aItem, nsIFrame* aFrame)
{
// XXX For slightly more accurate region computations we should pixel-snap this
return aFrame->GetContentRectRelativeToSelf() + aItem->ToReferenceFrame();
}
nsRect
nsDisplayPluginReadback::GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap)
{
*aSnap = false;
return GetDisplayItemBounds(aBuilder, this, mFrame);
}
bool
nsDisplayPluginReadback::ComputeVisibility(nsDisplayListBuilder* aBuilder,
nsRegion* aVisibleRegion,
const nsRect& aAllowVisibleRegionExpansion)
{
if (!nsDisplayItem::ComputeVisibility(aBuilder, aVisibleRegion,
aAllowVisibleRegionExpansion))
return false;
nsRect expand;
bool snap;
expand.IntersectRect(aAllowVisibleRegionExpansion, GetBounds(aBuilder, &snap));
// *Add* our bounds to the visible region so that stuff underneath us is
// likely to be made visible, so we can use it for a background! This is
// a bit crazy since we normally only subtract from the visible region.
aVisibleRegion->Or(*aVisibleRegion, expand);
return true;
}
nsRect
nsDisplayPlugin::GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap)
{
*aSnap = false;
return GetDisplayItemBounds(aBuilder, this, mFrame);
}
void
nsDisplayPlugin::Paint(nsDisplayListBuilder* aBuilder,
nsRenderingContext* aCtx)
{
nsObjectFrame* f = static_cast<nsObjectFrame*>(mFrame);
bool snap;
f->PaintPlugin(aBuilder, *aCtx, mVisibleRect, GetBounds(aBuilder, &snap));
}
bool
nsDisplayPlugin::ComputeVisibility(nsDisplayListBuilder* aBuilder,
nsRegion* aVisibleRegion,
const nsRect& aAllowVisibleRegionExpansion)
{
bool snap;
mVisibleRegion.And(*aVisibleRegion, GetBounds(aBuilder, &snap));
return nsDisplayItem::ComputeVisibility(aBuilder, aVisibleRegion,
aAllowVisibleRegionExpansion);
}
nsRegion
nsDisplayPlugin::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
bool* aSnap)
{
*aSnap = false;
nsRegion result;
nsObjectFrame* f = static_cast<nsObjectFrame*>(mFrame);
if (!aBuilder->IsForPluginGeometry()) {
nsIWidget* widget = f->GetWidget();
if (widget) {
nsTArray<nsIntRect> clip;
widget->GetWindowClipRegion(&clip);
nsTArray<nsIWidget::Configuration> configuration;
GetWidgetConfiguration(aBuilder, &configuration);
NS_ASSERTION(configuration.Length() == 1, "No configuration found");
if (clip != configuration[0].mClipRegion) {
// Something has clipped us unexpectedly. Perhaps there is a translucent
// chrome element overlaying us that forced us to be clipped away. Treat
// us as non-opaque since we may have holes.
return result;
}
}
}
if (f->IsOpaque()) {
nsRect bounds = GetBounds(aBuilder, aSnap);
if (aBuilder->IsForPluginGeometry() ||
(f->GetPaintedRect(this) + ToReferenceFrame()).Contains(bounds)) {
// We can treat this as opaque
result = bounds;
}
}
return result;
}
void
nsDisplayPlugin::GetWidgetConfiguration(nsDisplayListBuilder* aBuilder,
nsTArray<nsIWidget::Configuration>* aConfigurations)
{
nsObjectFrame* f = static_cast<nsObjectFrame*>(mFrame);
nsPoint pluginOrigin = mFrame->GetContentRectRelativeToSelf().TopLeft() +
ToReferenceFrame();
f->ComputeWidgetGeometry(mVisibleRegion, pluginOrigin, aConfigurations);
}
void
nsObjectFrame::ComputeWidgetGeometry(const nsRegion& aRegion,
const nsPoint& aPluginOrigin,
nsTArray<nsIWidget::Configuration>* aConfigurations)
{
if (!mWidget) {
#ifndef XP_MACOSX
if (mInstanceOwner) {
// UpdateWindowVisibility will notify the plugin of position changes
// by updating the NPWindow and calling NPP_SetWindow/AsyncSetWindow.
mInstanceOwner->UpdateWindowVisibility(!aRegion.IsEmpty());
}
#endif
return;
}
nsPresContext* presContext = PresContext();
nsRootPresContext* rootPC = presContext->GetRootPresContext();
if (!rootPC)
return;
nsIWidget::Configuration* configuration = aConfigurations->AppendElement();
if (!configuration)
return;
configuration->mChild = mWidget;
PRInt32 appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
nsIFrame* rootFrame = rootPC->PresShell()->FrameManager()->GetRootFrame();
nsRect bounds = GetContentRectRelativeToSelf() + GetOffsetToCrossDoc(rootFrame);
configuration->mBounds = bounds.ToNearestPixels(appUnitsPerDevPixel);
// This should produce basically the same rectangle (but not relative
// to the root frame). We only call this here for the side-effect of
// setting mViewToWidgetOffset on the view.
mInnerView->CalcWidgetBounds(eWindowType_plugin);
nsRegionRectIterator iter(aRegion);
nsIntPoint pluginOrigin = aPluginOrigin.ToNearestPixels(appUnitsPerDevPixel);
for (const nsRect* r = iter.Next(); r; r = iter.Next()) {
// Snap *r to pixels while it's relative to the painted widget, to
// improve consistency with rectangle and image drawing
nsIntRect pixRect =
r->ToNearestPixels(appUnitsPerDevPixel) - pluginOrigin;
if (!pixRect.IsEmpty()) {
configuration->mClipRegion.AppendElement(pixRect);
}
}
}
nsresult
nsObjectFrame::PluginEventNotifier::Run() {
nsCOMPtr<nsIObserverService> obsSvc =
mozilla::services::GetObserverService();
obsSvc->NotifyObservers(nsnull, "plugin-changed-event", mEventType.get());
return NS_OK;
}
void
nsObjectFrame::NotifyPluginReflowObservers()
{
nsContentUtils::AddScriptRunner(new PluginEventNotifier(NS_LITERAL_STRING("reflow")));
}
void
nsObjectFrame::DidSetWidgetGeometry()
{
#if defined(XP_MACOSX)
if (mInstanceOwner) {
mInstanceOwner->FixUpPluginWindow(nsPluginInstanceOwner::ePluginPaintEnable);
}
#endif
}
bool
nsObjectFrame::IsOpaque() const
{
#if defined(XP_MACOSX)
// ???
return false;
#else
return !IsTransparentMode();
#endif
}
bool
nsObjectFrame::IsTransparentMode() const
{
#if defined(XP_MACOSX)
// ???
return false;
#else
if (!mInstanceOwner)
return false;
NPWindow *window = nsnull;
mInstanceOwner->GetWindow(window);
if (!window) {
return false;
}
if (window->type != NPWindowTypeDrawable)
return false;
nsresult rv;
nsRefPtr<nsNPAPIPluginInstance> pi;
rv = mInstanceOwner->GetInstance(getter_AddRefs(pi));
if (NS_FAILED(rv) || !pi)
return false;
bool transparent = false;
pi->IsTransparent(&transparent);
return transparent;
#endif
}
NS_IMETHODIMP
nsObjectFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
// XXX why are we painting collapsed object frames?
if (!IsVisibleOrCollapsedForPainting(aBuilder))
return NS_OK;
nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
NS_ENSURE_SUCCESS(rv, rv);
nsPresContext::nsPresContextType type = PresContext()->Type();
// If we are painting in Print Preview do nothing....
if (type == nsPresContext::eContext_PrintPreview)
return NS_OK;
DO_GLOBAL_REFLOW_COUNT_DSP("nsObjectFrame");
#ifndef XP_MACOSX
if (mWidget && aBuilder->IsInTransform()) {
// Windowed plugins should not be rendered inside a transform.
return NS_OK;
}
#endif
nsDisplayList replacedContent;
if (aBuilder->IsForPainting() && mInstanceOwner && mInstanceOwner->UseAsyncRendering()) {
NPWindow* window = nsnull;
mInstanceOwner->GetWindow(window);
bool isVisible = window && window->width > 0 && window->height > 0;
if (isVisible && aBuilder->ShouldSyncDecodeImages()) {
#ifndef XP_MACOSX
mInstanceOwner->UpdateWindowVisibility(true);
#endif
}
nsRefPtr<ImageContainer> container = GetImageContainer();
if (container && container->HasCurrentImage() || !isVisible ||
container->GetCurrentSize() != gfxIntSize(window->width, window->height)) {
mInstanceOwner->NotifyPaintWaiter(aBuilder);
}
}
// determine if we are printing
if (type == nsPresContext::eContext_Print) {
rv = replacedContent.AppendNewToTop(new (aBuilder)
nsDisplayGeneric(aBuilder, this, PaintPrintPlugin, "PrintPlugin",
nsDisplayItem::TYPE_PRINT_PLUGIN));
} else {
if (aBuilder->IsPaintingToWindow() &&
GetLayerState(aBuilder, nsnull) == LAYER_ACTIVE &&
IsTransparentMode()) {
rv = replacedContent.AppendNewToTop(new (aBuilder)
nsDisplayPluginReadback(aBuilder, this));
NS_ENSURE_SUCCESS(rv, rv);
}
rv = replacedContent.AppendNewToTop(new (aBuilder)
nsDisplayPlugin(aBuilder, this));
}
NS_ENSURE_SUCCESS(rv, rv);
WrapReplacedContentForBorderRadius(aBuilder, &replacedContent, aLists);
return NS_OK;
}
#ifdef XP_OS2
static void *
GetPSFromRC(nsRenderingContext& aRenderingContext)
{
nsRefPtr<gfxASurface>
surf = aRenderingContext.ThebesContext()->CurrentSurface();
if (!surf || surf->CairoStatus())
return nsnull;
return (void *)(static_cast<gfxOS2Surface*>
(static_cast<gfxASurface*>(surf.get()))->GetPS());
}
#endif
void
nsObjectFrame::PrintPlugin(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect)
{
nsCOMPtr<nsIObjectLoadingContent> obj(do_QueryInterface(mContent));
if (!obj)
return;
nsIFrame* frame = nsnull;
obj->GetPrintFrame(&frame);
if (!frame)
return;
nsPresContext* presContext = PresContext();
// make sure this is REALLY an nsIObjectFrame
// we may need to go through the children to get it
nsIObjectFrame* objectFrame = do_QueryFrame(frame);
if (!objectFrame)
objectFrame = GetNextObjectFrame(presContext,frame);
if (!objectFrame)
return;
// finally we can get our plugin instance
nsRefPtr<nsNPAPIPluginInstance> pi;
if (NS_FAILED(objectFrame->GetPluginInstance(getter_AddRefs(pi))) || !pi)
return;
// now we need to setup the correct location for printing
NPWindow window;
window.window = nsnull;
// prepare embedded mode printing struct
NPPrint npprint;
npprint.mode = NP_EMBED;
// we need to find out if we are windowless or not
bool windowless = false;
pi->IsWindowless(&windowless);
window.type = windowless ? NPWindowTypeDrawable : NPWindowTypeWindow;
window.clipRect.bottom = 0; window.clipRect.top = 0;
window.clipRect.left = 0; window.clipRect.right = 0;
// platform specific printing code
#ifdef MAC_CARBON_PLUGINS
// Don't use this code if any of the QuickDraw APIs it currently requires
// are missing (as they probably will be on OS X 10.8 and up).
if (!::SetRect || !::NewGWorldFromPtr || !::DisposeGWorld) {
NS_WARNING("Cannot print plugin -- required QuickDraw APIs are missing!");
return;
}
nsSize contentSize = GetContentRectRelativeToSelf().Size();
window.x = 0;
window.y = 0;
window.width = presContext->AppUnitsToDevPixels(contentSize.width);
window.height = presContext->AppUnitsToDevPixels(contentSize.height);
gfxContext *ctx = aRenderingContext.ThebesContext();
if (!ctx)
return;
gfxContextAutoSaveRestore save(ctx);
ctx->NewPath();
gfxRect rect(window.x, window.y, window.width, window.height);
ctx->Rectangle(rect);
ctx->Clip();
gfxQuartzNativeDrawing nativeDraw(ctx, rect);
CGContextRef cgContext = nativeDraw.BeginNativeDrawing();
if (!cgContext) {
nativeDraw.EndNativeDrawing();
return;
}
window.clipRect.right = window.width;
window.clipRect.bottom = window.height;
window.type = NPWindowTypeDrawable;
::Rect gwBounds;
::SetRect(&gwBounds, 0, 0, window.width, window.height);
nsTArray<char> buffer(window.width * window.height * 4);
CGColorSpaceRef cspace = ::CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
if (!cspace) {
nativeDraw.EndNativeDrawing();
return;
}
CGContextRef cgBuffer =
::CGBitmapContextCreate(buffer.Elements(),
window.width, window.height, 8, window.width * 4,
cspace, kCGBitmapByteOrder32Big | kCGImageAlphaPremultipliedFirst);
::CGColorSpaceRelease(cspace);
if (!cgBuffer) {
nativeDraw.EndNativeDrawing();
return;
}
GWorldPtr gWorld;
if (::NewGWorldFromPtr(&gWorld, k32ARGBPixelFormat, &gwBounds, NULL, NULL, 0,
buffer.Elements(), window.width * 4) != noErr) {
::CGContextRelease(cgBuffer);
nativeDraw.EndNativeDrawing();
return;
}
window.clipRect.right = window.width;
window.clipRect.bottom = window.height;
window.type = NPWindowTypeDrawable;
// Setting nsPluginPrint/NPPrint.print.embedPrint.window.window to
// &GWorldPtr and nsPluginPrint/NPPrint.print.embedPrint.platformPrint to
// GWorldPtr isn't any kind of standard (it's not documented anywhere).
// But that's what WebKit does. And it's what the Flash plugin (apparently
// the only NPAPI plugin on OS X to support printing) seems to expect. So
// we do the same. The Flash plugin uses the CoreGraphics drawing mode.
// But a GWorldPtr should be usable in either CoreGraphics or QuickDraw
// drawing mode. See bug 191046.
window.window = &gWorld;
npprint.print.embedPrint.platformPrint = gWorld;
npprint.print.embedPrint.window = window;
pi->Print(&npprint);
::CGContextTranslateCTM(cgContext, 0.0f, float(window.height));
::CGContextScaleCTM(cgContext, 1.0f, -1.0f);
CGImageRef image = ::CGBitmapContextCreateImage(cgBuffer);
if (!image) {
::CGContextRestoreGState(cgContext);
::CGContextRelease(cgBuffer);
::DisposeGWorld(gWorld);
nativeDraw.EndNativeDrawing();
return;
}
::CGContextDrawImage(cgContext,
::CGRectMake(0, 0, window.width, window.height),
image);
::CGImageRelease(image);
::CGContextRelease(cgBuffer);
::DisposeGWorld(gWorld);
nativeDraw.EndNativeDrawing();
#elif defined(XP_UNIX)
/* XXX this just flat-out doesn't work in a thebes world --
* RenderEPS is a no-op. So don't bother to do any work here.
*/
(void)window;
(void)npprint;
#elif defined(XP_OS2)
void *hps = GetPSFromRC(aRenderingContext);
if (!hps)
return;
npprint.print.embedPrint.platformPrint = hps;
npprint.print.embedPrint.window = window;
// send off print info to plugin
pi->Print(&npprint);
#elif defined(XP_WIN)
/* On Windows, we use the win32 printing surface to print. This, in
* turn, uses the Cairo paginated surface, which in turn uses the
* meta surface to record all operations and then play them back.
* This doesn't work too well for plugins, because if plugins render
* directly into the DC, the meta surface won't have any knowledge
* of them, and so at the end when it actually does the replay step,
* it'll fill the background with white and draw over whatever was
* rendered before.
*
* So, to avoid this, we use PushGroup, which creates a new windows
* surface, the plugin renders to that, and then we use normal
* cairo methods to composite that in such that it's recorded using the
* meta surface.
*/
/* we'll already be translated into the right spot by gfxWindowsNativeDrawing */
nsSize contentSize = GetContentRectRelativeToSelf().Size();
window.x = 0;
window.y = 0;
window.width = presContext->AppUnitsToDevPixels(contentSize.width);
window.height = presContext->AppUnitsToDevPixels(contentSize.height);
gfxContext *ctx = aRenderingContext.ThebesContext();
ctx->Save();
/* Make sure plugins don't do any damage outside of where they're supposed to */
ctx->NewPath();
gfxRect r(window.x, window.y, window.width, window.height);
ctx->Rectangle(r);
ctx->Clip();
gfxWindowsNativeDrawing nativeDraw(ctx, r);
do {
HDC dc = nativeDraw.BeginNativeDrawing();
if (!dc)
return;
// XXX don't we need to call nativeDraw.TransformToNativeRect here?
npprint.print.embedPrint.platformPrint = dc;
npprint.print.embedPrint.window = window;
// send off print info to plugin
pi->Print(&npprint);
nativeDraw.EndNativeDrawing();
} while (nativeDraw.ShouldRenderAgain());
nativeDraw.PaintToContext();
ctx->Restore();
#endif
// XXX Nav 4.x always sent a SetWindow call after print. Should we do the same?
// XXX Calling DidReflow here makes no sense!!!
nsDidReflowStatus status = NS_FRAME_REFLOW_FINISHED; // should we use a special status?
frame->DidReflow(presContext,
nsnull, status); // DidReflow will take care of it
}
already_AddRefed<ImageContainer>
nsObjectFrame::GetImageContainer()
{
nsRefPtr<ImageContainer> container = mImageContainer;
if (container) {
return container.forget();
}
container = mImageContainer = LayerManager::CreateImageContainer();
return container.forget();
}
nsRect
nsObjectFrame::GetPaintedRect(nsDisplayPlugin* aItem)
{
if (!mInstanceOwner)
return nsRect();
nsRect r = GetContentRectRelativeToSelf();
if (!mInstanceOwner->UseAsyncRendering())
return r;
nsIntSize size = mInstanceOwner->GetCurrentImageSize();
nsPresContext* pc = PresContext();
r.IntersectRect(r, nsRect(0, 0, pc->DevPixelsToAppUnits(size.width),
pc->DevPixelsToAppUnits(size.height)));
return r;
}
void
nsObjectFrame::UpdateImageLayer(const gfxRect& aRect)
{
if (!mInstanceOwner) {
return;
}
#ifdef XP_MACOSX
if (!mInstanceOwner->UseAsyncRendering()) {
mInstanceOwner->DoCocoaEventDrawRect(aRect, nsnull);
// This makes sure the image on the container is up to date.
// XXX - Eventually we probably just want to make sure DoCocoaEventDrawRect
// updates the image container, to make this truly use 'push' semantics
// too.
mInstanceOwner->GetImageContainer();
}
#endif
}
LayerState
nsObjectFrame::GetLayerState(nsDisplayListBuilder* aBuilder,
LayerManager* aManager)
{
if (!mInstanceOwner)
return LAYER_NONE;
#ifdef XP_MACOSX
if (!mInstanceOwner->UseAsyncRendering() &&
mInstanceOwner->IsRemoteDrawingCoreAnimation() &&
mInstanceOwner->GetEventModel() == NPEventModelCocoa) {
return LAYER_ACTIVE;
}
#endif
if (!mInstanceOwner->UseAsyncRendering()) {
return LAYER_NONE;
}
return LAYER_ACTIVE;
}
already_AddRefed<Layer>
nsObjectFrame::BuildLayer(nsDisplayListBuilder* aBuilder,
LayerManager* aManager,
nsDisplayItem* aItem)
{
if (!mInstanceOwner)
return nsnull;
NPWindow* window = nsnull;
mInstanceOwner->GetWindow(window);
if (!window)
return nsnull;
if (window->width <= 0 || window->height <= 0)
return nsnull;
// Create image
nsRefPtr<ImageContainer> container = mInstanceOwner->GetImageContainer();
if (!container) {
// This can occur if our instance is gone.
return nsnull;
}
gfxIntSize size;
#ifdef XP_MACOSX
if (mInstanceOwner->GetDrawingModel() == NPDrawingModelCoreAnimation) {
size = container->GetCurrentSize();
} else
#endif
{
size = gfxIntSize(window->width, window->height);
}
nsRect area = GetContentRectRelativeToSelf() + aItem->ToReferenceFrame();
gfxRect r = nsLayoutUtils::RectToGfxRect(area, PresContext()->AppUnitsPerDevPixel());
// to provide crisper and faster drawing.
r.Round();
nsRefPtr<Layer> layer =
(aBuilder->LayerBuilder()->GetLeafLayerFor(aBuilder, aManager, aItem));
if (aItem->GetType() == nsDisplayItem::TYPE_PLUGIN) {
if (!layer) {
mInstanceOwner->NotifyPaintWaiter(aBuilder);
// Initialize ImageLayer
layer = aManager->CreateImageLayer();
if (!layer)
return nsnull;
}
NS_ASSERTION(layer->GetType() == Layer::TYPE_IMAGE, "Bad layer type");
ImageLayer* imglayer = static_cast<ImageLayer*>(layer.get());
UpdateImageLayer(r);
#ifdef XP_WIN
imglayer->SetScaleToSize(size, ImageLayer::SCALE_STRETCH);
#endif
imglayer->SetContainer(container);
gfxPattern::GraphicsFilter filter =
nsLayoutUtils::GetGraphicsFilterForFrame(this);
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
if (!aManager->IsCompositingCheap()) {
// Pixman just horrible with bilinear filter scaling
filter = gfxPattern::FILTER_NEAREST;
}
#endif
imglayer->SetFilter(filter);
layer->SetContentFlags(IsOpaque() ? Layer::CONTENT_OPAQUE : 0);
} else {
NS_ASSERTION(aItem->GetType() == nsDisplayItem::TYPE_PLUGIN_READBACK,
"Unknown item type");
NS_ABORT_IF_FALSE(!IsOpaque(), "Opaque plugins don't use backgrounds");
if (!layer) {
layer = aManager->CreateReadbackLayer();
if (!layer)
return nsnull;
}
NS_ASSERTION(layer->GetType() == Layer::TYPE_READBACK, "Bad layer type");
ReadbackLayer* readback = static_cast<ReadbackLayer*>(layer.get());
if (readback->GetSize() != nsIntSize(size.width, size.height)) {
// This will destroy any old background sink and notify us that the
// background is now unknown
readback->SetSink(nsnull);
readback->SetSize(nsIntSize(size.width, size.height));
if (mBackgroundSink) {
// Maybe we still have a background sink associated with another
// readback layer that wasn't recycled for some reason? Unhook it
// now so that if this frame goes away, it doesn't have a dangling
// reference to us.
mBackgroundSink->Destroy();
}
mBackgroundSink =
new PluginBackgroundSink(this,
readback->AllocateSequenceNumber());
readback->SetSink(mBackgroundSink);
// The layer has taken ownership of our sink. When either the sink dies
// or the frame dies, the connection from the surviving object is nulled out.
}
}
// Set a transform on the layer to draw the plugin in the right place
gfxMatrix transform;
transform.Translate(r.TopLeft());
layer->SetTransform(gfx3DMatrix::From2D(transform));
layer->SetVisibleRegion(nsIntRect(0, 0, size.width, size.height));
return layer.forget();
}
void
nsObjectFrame::PaintPlugin(nsDisplayListBuilder* aBuilder,
nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect, const nsRect& aPluginRect)
{
#if defined(MOZ_WIDGET_ANDROID)
if (mInstanceOwner) {
gfxRect frameGfxRect =
PresContext()->AppUnitsToGfxUnits(aPluginRect);
gfxRect dirtyGfxRect =
PresContext()->AppUnitsToGfxUnits(aDirtyRect);
gfxContext* ctx = aRenderingContext.ThebesContext();
mInstanceOwner->Paint(ctx, frameGfxRect, dirtyGfxRect);
return;
}
#endif
// Screen painting code
#if defined(XP_MACOSX)
// delegate all painting to the plugin instance.
if (mInstanceOwner) {
if (mInstanceOwner->GetDrawingModel() == NPDrawingModelCoreGraphics ||
mInstanceOwner->GetDrawingModel() == NPDrawingModelCoreAnimation ||
mInstanceOwner->GetDrawingModel() ==
NPDrawingModelInvalidatingCoreAnimation) {
PRInt32 appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
// Clip to the content area where the plugin should be drawn. If
// we don't do this, the plugin can draw outside its bounds.
nsIntRect contentPixels = aPluginRect.ToNearestPixels(appUnitsPerDevPixel);
nsIntRect dirtyPixels = aDirtyRect.ToOutsidePixels(appUnitsPerDevPixel);
nsIntRect clipPixels;
clipPixels.IntersectRect(contentPixels, dirtyPixels);
// Don't invoke the drawing code if the clip is empty.
if (clipPixels.IsEmpty())
return;
gfxRect nativeClipRect(clipPixels.x, clipPixels.y,
clipPixels.width, clipPixels.height);
gfxContext* ctx = aRenderingContext.ThebesContext();
gfxContextAutoSaveRestore save(ctx);
ctx->NewPath();
ctx->Rectangle(nativeClipRect);
ctx->Clip();
gfxPoint offset(contentPixels.x, contentPixels.y);
ctx->Translate(offset);
gfxQuartzNativeDrawing nativeDrawing(ctx, nativeClipRect - offset);
CGContextRef cgContext = nativeDrawing.BeginNativeDrawing();
if (!cgContext) {
NS_WARNING("null CGContextRef during PaintPlugin");
return;
}
nsRefPtr<nsNPAPIPluginInstance> inst;
GetPluginInstance(getter_AddRefs(inst));
if (!inst) {
NS_WARNING("null plugin instance during PaintPlugin");
nativeDrawing.EndNativeDrawing();
return;
}
NPWindow* window;
mInstanceOwner->GetWindow(window);
if (!window) {
NS_WARNING("null plugin window during PaintPlugin");
nativeDrawing.EndNativeDrawing();
return;
}
NP_CGContext* cgPluginPortCopy =
static_cast<NP_CGContext*>(mInstanceOwner->GetPluginPortCopy());
if (!cgPluginPortCopy) {
NS_WARNING("null plugin port copy during PaintPlugin");
nativeDrawing.EndNativeDrawing();
return;
}
#ifndef NP_NO_CARBON
if (mInstanceOwner->GetEventModel() == NPEventModelCarbon &&
!mInstanceOwner->SetPluginPortAndDetectChange()) {
NS_WARNING("null plugin port during PaintPlugin");
nativeDrawing.EndNativeDrawing();
return;
}
// In the Carbon event model...
// If gfxQuartzNativeDrawing hands out a CGContext different from the
// one set by SetPluginPortAndDetectChange(), we need to pass it to the
// plugin via SetWindow(). This will happen in nsPluginInstanceOwner::
// FixUpPluginWindow(), called from nsPluginInstanceOwner::Paint().
// (If SetPluginPortAndDetectChange() made any changes itself, this has
// already been detected in that method, and will likewise result in a
// call to SetWindow() from FixUpPluginWindow().)
NP_CGContext* windowContext = static_cast<NP_CGContext*>(window->window);
if (mInstanceOwner->GetEventModel() == NPEventModelCarbon &&
windowContext->context != cgContext) {
windowContext->context = cgContext;
cgPluginPortCopy->context = cgContext;
mInstanceOwner->SetPluginPortChanged(true);
}
#endif
mInstanceOwner->BeginCGPaint();
if (mInstanceOwner->GetDrawingModel() == NPDrawingModelCoreAnimation ||
mInstanceOwner->GetDrawingModel() ==
NPDrawingModelInvalidatingCoreAnimation) {
// CoreAnimation is updated, render the layer and perform a readback.
mInstanceOwner->RenderCoreAnimation(cgContext, window->width, window->height);
} else {
mInstanceOwner->Paint(nativeClipRect - offset, cgContext);
}
mInstanceOwner->EndCGPaint();
nativeDrawing.EndNativeDrawing();
} else {
// FIXME - Bug 385435: Doesn't aDirtyRect need translating too?
nsRenderingContext::AutoPushTranslation
translate(&aRenderingContext, aPluginRect.TopLeft());
// this rect is used only in the CoreGraphics drawing model
gfxRect tmpRect(0, 0, 0, 0);
mInstanceOwner->Paint(tmpRect, NULL);
}
}
#elif defined(MOZ_X11)
if (mInstanceOwner) {
NPWindow *window;
mInstanceOwner->GetWindow(window);
if (window->type == NPWindowTypeDrawable) {
gfxRect frameGfxRect =
PresContext()->AppUnitsToGfxUnits(aPluginRect);
gfxRect dirtyGfxRect =
PresContext()->AppUnitsToGfxUnits(aDirtyRect);
gfxContext* ctx = aRenderingContext.ThebesContext();
mInstanceOwner->Paint(ctx, frameGfxRect, dirtyGfxRect);
}
}
#elif defined(XP_WIN)
nsRefPtr<nsNPAPIPluginInstance> inst;
GetPluginInstance(getter_AddRefs(inst));
if (inst) {
gfxRect frameGfxRect =
PresContext()->AppUnitsToGfxUnits(aPluginRect);
gfxRect dirtyGfxRect =
PresContext()->AppUnitsToGfxUnits(aDirtyRect);
gfxContext *ctx = aRenderingContext.ThebesContext();
gfxMatrix currentMatrix = ctx->CurrentMatrix();
if (ctx->UserToDevicePixelSnapped(frameGfxRect, false)) {
dirtyGfxRect = ctx->UserToDevice(dirtyGfxRect);
ctx->IdentityMatrix();
}
dirtyGfxRect.RoundOut();
// Look if it's windowless
NPWindow *window;
mInstanceOwner->GetWindow(window);
if (window->type == NPWindowTypeDrawable) {
// the offset of the DC
nsPoint origin;
gfxWindowsNativeDrawing nativeDraw(ctx, frameGfxRect);
if (nativeDraw.IsDoublePass()) {
// OOP plugin specific: let the shim know before we paint if we are doing a
// double pass render. If this plugin isn't oop, the register window message
// will be ignored.
NPEvent pluginEvent;
pluginEvent.event = DoublePassRenderingEvent();
pluginEvent.wParam = 0;
pluginEvent.lParam = 0;
if (pluginEvent.event)
inst->HandleEvent(&pluginEvent, nsnull);
}
do {
HDC hdc = nativeDraw.BeginNativeDrawing();
if (!hdc)
return;
RECT dest;
nativeDraw.TransformToNativeRect(frameGfxRect, dest);
RECT dirty;
nativeDraw.TransformToNativeRect(dirtyGfxRect, dirty);
window->window = hdc;
window->x = dest.left;
window->y = dest.top;
window->clipRect.left = 0;
window->clipRect.top = 0;
// if we're painting, we're visible.
window->clipRect.right = window->width;
window->clipRect.bottom = window->height;
// Windowless plugins on windows need a special event to update their location,
// see bug 135737.
//
// bug 271442: note, the rectangle we send is now purely the bounds of the plugin
// relative to the window it is contained in, which is useful for the plugin to
// correctly translate mouse coordinates.
//
// this does not mesh with the comments for bug 135737 which imply that the rectangle
// must be clipped in some way to prevent the plugin attempting to paint over areas
// it shouldn't.
//
// since the two uses of the rectangle are mutually exclusive in some cases, and
// since I don't see any incorrect painting (at least with Flash and ViewPoint -
// the originator of bug 135737), it seems that windowless plugins are not relying
// on information here for clipping their drawing, and we can safely use this message
// to tell the plugin exactly where it is in all cases.
nsIntPoint origin = GetWindowOriginInPixels(true);
nsIntRect winlessRect = nsIntRect(origin, nsIntSize(window->width, window->height));
if (!mWindowlessRect.IsEqualEdges(winlessRect)) {
mWindowlessRect = winlessRect;
WINDOWPOS winpos;
memset(&winpos, 0, sizeof(winpos));
winpos.x = mWindowlessRect.x;
winpos.y = mWindowlessRect.y;
winpos.cx = mWindowlessRect.width;
winpos.cy = mWindowlessRect.height;
// finally, update the plugin by sending it a WM_WINDOWPOSCHANGED event
NPEvent pluginEvent;
pluginEvent.event = WM_WINDOWPOSCHANGED;
pluginEvent.wParam = 0;
pluginEvent.lParam = (LPARAM)&winpos;
inst->HandleEvent(&pluginEvent, nsnull);
}
inst->SetWindow(window);
mInstanceOwner->Paint(dirty, hdc);
nativeDraw.EndNativeDrawing();
} while (nativeDraw.ShouldRenderAgain());
nativeDraw.PaintToContext();
}
ctx->SetMatrix(currentMatrix);
}
#elif defined(XP_OS2)
nsRefPtr<nsNPAPIPluginInstance> inst;
GetPluginInstance(getter_AddRefs(inst));
if (inst) {
// Look if it's windowless
NPWindow *window;
mInstanceOwner->GetWindow(window);
if (window->type == NPWindowTypeDrawable) {
// FIXME - Bug 385435: Doesn't aDirtyRect need translating too?
nsRenderingContext::AutoPushTranslation
translate(&aRenderingContext, aPluginRect.TopLeft());
// check if we need to call SetWindow with updated parameters
bool doupdatewindow = false;
// the offset of the DC
nsIntPoint origin;
/*
* Layout now has an optimized way of painting. Now we always get
* a new drawing surface, sized to be just what's needed. Windowless
* plugins need a transform applied to their origin so they paint
* in the right place. Since |SetWindow| is no longer being used
* to tell the plugin where it is, we dispatch a NPWindow through
* |HandleEvent| to tell the plugin when its window moved
*/
gfxContext *ctx = aRenderingContext.ThebesContext();
gfxMatrix ctxMatrix = ctx->CurrentMatrix();
if (ctxMatrix.HasNonTranslation()) {
// soo; in the future, we should be able to render
// the object content to an offscreen DC, and then
// composite it in with the right transforms.
// But, we don't bother doing that, because we don't
// have the event handling story figured out yet.
// Instead, let's just bail.
return;
}
origin.x = NSToIntRound(float(ctxMatrix.GetTranslation().x));
origin.y = NSToIntRound(float(ctxMatrix.GetTranslation().y));
/* Need to force the clip to be set */
ctx->UpdateSurfaceClip();
/* Set the device offsets as appropriate, for whatever our current group offsets might be */
gfxFloat xoff, yoff;
nsRefPtr<gfxASurface> surf = ctx->CurrentSurface(&xoff, &yoff);
if (surf->CairoStatus() != 0) {
NS_WARNING("Plugin is being asked to render to a surface that's in error!");
return;
}
// check if we need to update the PS
HPS hps = (HPS)GetPSFromRC(aRenderingContext);
if (reinterpret_cast<HPS>(window->window) != hps) {
window->window = reinterpret_cast<void*>(hps);
doupdatewindow = true;
}
LONG lPSid = GpiSavePS(hps);
RECTL rclViewport;
if (GpiQueryDevice(hps) != NULLHANDLE) { // ensure that we have an associated HDC
if (GpiQueryPageViewport(hps, &rclViewport)) {
rclViewport.xLeft += (LONG)xoff;
rclViewport.xRight += (LONG)xoff;
rclViewport.yBottom += (LONG)yoff;
rclViewport.yTop += (LONG)yoff;
GpiSetPageViewport(hps, &rclViewport);
}
}
if ((window->x != origin.x) || (window->y != origin.y)) {
window->x = origin.x;
window->y = origin.y;
doupdatewindow = true;
}
// if our location or visible area has changed, we need to tell the plugin
if (doupdatewindow) {
inst->SetWindow(window);
}
mInstanceOwner->Paint(aDirtyRect, hps);
if (lPSid >= 1) {
GpiRestorePS(hps, lPSid);
}
surf->MarkDirty();
}
}
#endif
}
NS_IMETHODIMP
nsObjectFrame::HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* anEvent,
nsEventStatus* anEventStatus)
{
NS_ENSURE_ARG_POINTER(anEvent);
NS_ENSURE_ARG_POINTER(anEventStatus);
nsresult rv = NS_OK;
if (!mInstanceOwner)
return NS_ERROR_NULL_POINTER;
mInstanceOwner->ConsiderNewEventloopNestingLevel();
if (anEvent->message == NS_PLUGIN_ACTIVATE) {
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(GetContent());
if (fm && elem)
return fm->SetFocus(elem, 0);
}
else if (anEvent->message == NS_PLUGIN_FOCUS) {
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm)
return fm->FocusPlugin(GetContent());
}
if (mInstanceOwner->SendNativeEvents() &&
NS_IS_PLUGIN_EVENT(anEvent)) {
*anEventStatus = mInstanceOwner->ProcessEvent(*anEvent);
return rv;
}
#ifdef XP_WIN
rv = nsObjectFrameSuper::HandleEvent(aPresContext, anEvent, anEventStatus);
return rv;
#endif
#ifdef XP_MACOSX
// we want to process some native mouse events in the cocoa event model
if ((anEvent->message == NS_MOUSE_ENTER || anEvent->message == NS_MOUSE_SCROLL) &&
mInstanceOwner->GetEventModel() == NPEventModelCocoa) {
*anEventStatus = mInstanceOwner->ProcessEvent(*anEvent);
return rv;
}
#endif
if (anEvent->message == NS_DESTROY) {
#ifdef MAC_CARBON_PLUGINS
mInstanceOwner->CancelTimer();
#endif
return rv;
}
return nsObjectFrameSuper::HandleEvent(aPresContext, anEvent, anEventStatus);
}
#ifdef XP_MACOSX
// Needed to make the routing of mouse events while dragging conform to
// standard OS X practice, and to the Cocoa NPAPI spec. See bug 525078.
NS_IMETHODIMP
nsObjectFrame::HandlePress(nsPresContext* aPresContext,
nsGUIEvent* anEvent,
nsEventStatus* anEventStatus)
{
nsIPresShell::SetCapturingContent(GetContent(), CAPTURE_IGNOREALLOWED);
return nsObjectFrameSuper::HandlePress(aPresContext, anEvent, anEventStatus);
}
#endif
nsresult
nsObjectFrame::GetPluginInstance(nsNPAPIPluginInstance** aPluginInstance)
{
*aPluginInstance = nsnull;
if (!mInstanceOwner) {
return NS_OK;
}
return mInstanceOwner->GetInstance(aPluginInstance);
}
NS_IMETHODIMP
nsObjectFrame::GetCursor(const nsPoint& aPoint, nsIFrame::Cursor& aCursor)
{
if (!mInstanceOwner) {
return NS_ERROR_FAILURE;
}
nsRefPtr<nsNPAPIPluginInstance> inst;
mInstanceOwner->GetInstance(getter_AddRefs(inst));
if (!inst) {
return NS_ERROR_FAILURE;
}
bool useDOMCursor = static_cast<nsNPAPIPluginInstance*>(inst.get())->UsesDOMForCursor();
if (!useDOMCursor) {
return NS_ERROR_FAILURE;
}
return nsObjectFrameSuper::GetCursor(aPoint, aCursor);
}
void
nsObjectFrame::SetIsDocumentActive(bool aIsActive)
{
#ifndef XP_MACOSX
if (mInstanceOwner) {
mInstanceOwner->UpdateDocumentActiveState(aIsActive);
}
#endif
}
// static
nsIObjectFrame *
nsObjectFrame::GetNextObjectFrame(nsPresContext* aPresContext, nsIFrame* aRoot)
{
nsIFrame* child = aRoot->GetFirstPrincipalChild();
while (child) {
nsIObjectFrame* outFrame = do_QueryFrame(child);
if (outFrame) {
nsRefPtr<nsNPAPIPluginInstance> pi;
outFrame->GetPluginInstance(getter_AddRefs(pi)); // make sure we have a REAL plugin
if (pi)
return outFrame;
}
outFrame = GetNextObjectFrame(aPresContext, child);
if (outFrame)
return outFrame;
child = child->GetNextSibling();
}
return nsnull;
}
/*static*/ void
nsObjectFrame::BeginSwapDocShells(nsIContent* aContent, void*)
{
NS_PRECONDITION(aContent, "");
// This function is called from a document content enumerator so we need
// to filter out the nsObjectFrames and ignore the rest.
nsIObjectFrame* obj = do_QueryFrame(aContent->GetPrimaryFrame());
if (!obj)
return;
nsObjectFrame* objectFrame = static_cast<nsObjectFrame*>(obj);
NS_ASSERTION(!objectFrame->mWidget || objectFrame->mWidget->GetParent(),
"Plugin windows must not be toplevel");
nsRootPresContext* rootPC = objectFrame->PresContext()->GetRootPresContext();
NS_ASSERTION(rootPC, "unable to unregister the plugin frame");
rootPC->UnregisterPluginForGeometryUpdates(objectFrame);
}
/*static*/ void
nsObjectFrame::EndSwapDocShells(nsIContent* aContent, void*)
{
NS_PRECONDITION(aContent, "");
// This function is called from a document content enumerator so we need
// to filter out the nsObjectFrames and ignore the rest.
nsIObjectFrame* obj = do_QueryFrame(aContent->GetPrimaryFrame());
if (!obj)
return;
nsObjectFrame* objectFrame = static_cast<nsObjectFrame*>(obj);
nsRootPresContext* rootPC = objectFrame->PresContext()->GetRootPresContext();
NS_ASSERTION(rootPC, "unable to register the plugin frame");
nsIWidget* widget = objectFrame->GetWidget();
if (widget) {
// Reparent the widget.
nsIWidget* parent =
rootPC->PresShell()->GetRootFrame()->GetNearestWidget();
widget->SetParent(parent);
objectFrame->CallSetWindow();
// Register for geometry updates and make a request.
rootPC->RegisterPluginForGeometryUpdates(objectFrame);
rootPC->RequestUpdatePluginGeometry(objectFrame);
}
}
nsIFrame*
NS_NewObjectFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsObjectFrame(aContext);
}
bool
nsObjectFrame::PaintedByGecko()
{
#ifdef XP_MACOSX
return true;
#else
return !mWidget;
#endif
}
NS_IMPL_FRAMEARENA_HELPERS(nsObjectFrame)
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