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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 "nsView.h"
#include "nsViewManager.h"
#include "nsIDOMEventListener.h"
#include "nsIDOMDragEvent.h"
#include "nsPluginHost.h"
#include "nsString.h"
#include "nsReadableUtils.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 "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 "GeckoProfiler.h"
#include <algorithm>
// 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"
#include "ImageLayers.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 "mozilla/gfx/QuartzSupport.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 MOZ_WIDGET_ANDROID
#include "AndroidBridge.h"
#include "GLContext.h"
#endif
#ifdef CreateEvent // Thank you MS.
#undef CreateEvent
#endif
#ifdef PR_LOGGING
static PRLogModuleInfo *
GetObjectFrameLog()
{
static PRLogModuleInfo *sLog;
if (!sLog)
sLog = PR_NewLogModule("nsObjectFrame");
return sLog;
}
#endif /* PR_LOGGING */
#if defined(XP_MACOSX) && !defined(__LP64__)
// 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(__LP64__) */
using namespace mozilla;
using namespace mozilla::plugins;
using namespace mozilla::layers;
class PluginBackgroundSink : public ReadbackSink {
public:
PluginBackgroundSink(nsObjectFrame* aFrame, uint64_t aStartSequenceNumber)
: mLastSequenceNumber(aStartSequenceNumber), mFrame(aFrame) {}
~PluginBackgroundSink()
{
if (mFrame) {
mFrame->mBackgroundSink = nullptr;
}
}
virtual void SetUnknown(uint64_t aSequenceNumber)
{
if (!AcceptUpdate(aSequenceNumber))
return;
mFrame->mInstanceOwner->SetBackgroundUnknown();
}
virtual already_AddRefed<gfxContext>
BeginUpdate(const nsIntRect& aRect, uint64_t aSequenceNumber)
{
if (!AcceptUpdate(aSequenceNumber))
return nullptr;
return mFrame->mInstanceOwner->BeginUpdateBackground(aRect);
}
virtual void EndUpdate(gfxContext* aContext, const nsIntRect& aRect)
{
return mFrame->mInstanceOwner->EndUpdateBackground(aContext, aRect);
}
void Destroy() { mFrame = nullptr; }
protected:
bool AcceptUpdate(uint64_t aSequenceNumber) {
if (aSequenceNumber > mLastSequenceNumber && mFrame &&
mFrame->mInstanceOwner) {
mLastSequenceNumber = aSequenceNumber;
return true;
}
return false;
}
uint64_t mLastSequenceNumber;
nsObjectFrame* mFrame;
};
nsObjectFrame::nsObjectFrame(nsStyleContext* aContext)
: nsObjectFrameSuper(aContext)
, mReflowCallbackPosted(false)
{
PR_LOG(GetObjectFrameLog(), PR_LOG_DEBUG,
("Created new nsObjectFrame %p\n", this));
}
nsObjectFrame::~nsObjectFrame()
{
PR_LOG(GetObjectFrameLog(), PR_LOG_DEBUG,
("nsObjectFrame %p deleted\n", this));
}
NS_QUERYFRAME_HEAD(nsObjectFrame)
NS_QUERYFRAME_ENTRY(nsObjectFrame)
NS_QUERYFRAME_ENTRY(nsIObjectFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsObjectFrameSuper)
#ifdef ACCESSIBILITY
a11y::AccType
nsObjectFrame::AccessibleType()
{
return a11y::ePluginType;
}
#ifdef XP_WIN
NS_IMETHODIMP nsObjectFrame::GetPluginPort(HWND *aPort)
{
*aPort = (HWND) mInstanceOwner->GetPluginPortFromWidget();
return NS_OK;
}
#endif
#endif
void
nsObjectFrame::Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow)
{
PR_LOG(GetObjectFrameLog(), PR_LOG_DEBUG,
("Initializing nsObjectFrame %p for content %p\n", this, aContent));
nsObjectFrameSuper::Init(aContent, aParent, aPrevInFlow);
}
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?");
if (mInstanceOwner) {
mInstanceOwner->SetFrame(nullptr);
}
objContent->HasNewFrame(nullptr);
if (mBackgroundSink) {
mBackgroundSink->Destroy();
}
SetInstanceOwner(nullptr);
nsObjectFrameSuper::DestroyFrom(aDestructRoot);
}
/* virtual */ void
nsObjectFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
{
if (HasView()) {
nsView* view = GetView();
nsViewManager* 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;
nsView* view = GetView();
NS_ASSERTION(view, "Object frames must have views");
if (!view) {
return NS_ERROR_FAILURE;
}
nsViewManager* 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).
nsView* 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);
nsPresContext* presContext = PresContext();
nsRootPresContext* rpc = presContext->GetRootPresContext();
if (!rpc) {
return NS_ERROR_FAILURE;
}
if (mWidget) {
// Disallow windowed plugins in popups
nsIFrame* rootFrame = rpc->PresShell()->FrameManager()->GetRootFrame();
nsIWidget* parentWidget = rootFrame->GetNearestWidget();
if (!parentWidget || nsLayoutUtils::GetDisplayRootFrame(this) != rootFrame) {
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, nullptr, true);
mWidget->SetParent(parentWidget);
mWidget->Show(true);
mWidget->Enable(true);
// Set the plugin window to have an empty clip region until we know
// what our true position, size and clip region are. These
// will be reset when nsRootPresContext computes our true
// geometry. The plugin window does need to have a good size here, so
// set the size explicitly to a reasonable guess.
nsAutoTArray<nsIWidget::Configuration,1> configurations;
nsIWidget::Configuration* configuration = configurations.AppendElement();
nscoord appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
configuration->mChild = mWidget;
configuration->mBounds.width = NSAppUnitsToIntPixels(mRect.width, appUnitsPerDevPixel);
configuration->mBounds.height = NSAppUnitsToIntPixels(mRect.height, appUnitsPerDevPixel);
parentWidget->ConfigureChildren(configurations);
nsRefPtr<nsDeviceContext> dx;
viewMan->GetDeviceContext(*getter_AddRefs(dx));
mInnerView->AttachWidgetEventHandler(mWidget);
#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()) {
InvalidateFrame();
}
#endif
RegisterPluginForGeometryUpdates();
// 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
RegisterPluginForGeometryUpdates();
#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 = std::min(aPresContext->DevPixelsToAppUnits(INT16_MAX), aMetrics.height);
aMetrics.width = std::min(aPresContext->DevPixelsToAppUnits(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) {
nsViewManager* 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_VOID(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 must be in "display pixels"
double scaleFactor = 1.0;
if (NS_FAILED(mInstanceOwner->GetContentsScaleFactor(&scaleFactor))) {
scaleFactor = 1.0;
}
int intScaleFactor = ceil(scaleFactor);
window->x = origin.x / intScaleFactor;
window->y = origin.y / intScaleFactor;
window->width = presContext->AppUnitsToDevPixels(aSize.width) / intScaleFactor;
window->height = presContext->AppUnitsToDevPixels(aSize.height) / intScaleFactor;
// 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 = nullptr;
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;
int32_t appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
nsIFrame* rootFrame = rootPC->PresShell()->FrameManager()->GetRootFrame();
nsRect bounds = GetContentRectRelativeToSelf() + GetOffsetToCrossDoc(rootFrame);
nsIntRect intBounds = bounds.ToNearestPixels(appUnitsPerDevPixel);
// window must be in "display pixels"
double scaleFactor = 1.0;
if (NS_FAILED(mInstanceOwner->GetContentsScaleFactor(&scaleFactor))) {
scaleFactor = 1.0;
}
size_t intScaleFactor = ceil(scaleFactor);
window->x = intBounds.x / intScaleFactor;
window->y = intBounds.y / intScaleFactor;
window->width = intBounds.width / intScaleFactor;
window->height = intBounds.height / intScaleFactor;
// 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::RegisterPluginForGeometryUpdates()
{
nsRootPresContext* rpc = PresContext()->GetRootPresContext();
NS_ASSERTION(rpc, "We should have a root pres context!");
if (mRootPresContextRegisteredWith == rpc || !rpc) {
// Already registered with current root pres context,
// or null root pres context...
return;
}
if (mRootPresContextRegisteredWith && mRootPresContextRegisteredWith != rpc) {
// Registered to some other root pres context. Unregister, and
// re-register with our current one...
UnregisterPluginForGeometryUpdates();
}
mRootPresContextRegisteredWith = rpc;
mRootPresContextRegisteredWith->RegisterPluginForGeometryUpdates(mContent);
}
void
nsObjectFrame::UnregisterPluginForGeometryUpdates()
{
if (!mRootPresContextRegisteredWith) {
// Not registered...
return;
}
mRootPresContextRegisteredWith->UnregisterPluginForGeometryUpdates(mContent);
mRootPresContextRegisteredWith = nullptr;
}
void
nsObjectFrame::SetInstanceOwner(nsPluginInstanceOwner* aOwner)
{
mInstanceOwner = aOwner;
if (mInstanceOwner) {
return;
}
UnregisterPluginForGeometryUpdates();
if (mWidget && mInnerView) {
mInnerView->DetachWidgetEventHandler(mWidget);
// 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;
nsIWidget::Configuration* configuration = configurations.AppendElement();
configuration->mChild = mWidget;
parent->ConfigureChildren(configurations);
mWidget->Show(false);
mWidget->Enable(false);
mWidget->SetParent(nullptr);
}
}
}
bool
nsObjectFrame::IsFocusable(int32_t *aTabIndex, bool aWithMouse)
{
if (aTabIndex)
*aTabIndex = -1;
return nsObjectFrameSuper::IsFocusable(aTabIndex, aWithMouse);
}
bool
nsObjectFrame::IsHidden(bool aCheckVisibilityStyle) const
{
if (aCheckVisibilityStyle) {
if (!StyleVisibility()->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)
{
nsView * 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 == nsDidReflowStatus::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 != nsDidReflowStatus::FINISHED)
return rv;
if (HasView()) {
nsView* view = GetView();
nsViewManager* 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, aContainerParameters);
}
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;
}
#ifdef MOZ_WIDGET_ANDROID
class nsDisplayPluginVideo : public nsDisplayItem {
public:
nsDisplayPluginVideo(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame, nsNPAPIPluginInstance::VideoInfo* aVideoInfo)
: nsDisplayItem(aBuilder, aFrame), mVideoInfo(aVideoInfo)
{
MOZ_COUNT_CTOR(nsDisplayPluginVideo);
}
#ifdef NS_BUILD_REFCNT_LOGGING
virtual ~nsDisplayPluginVideo() {
MOZ_COUNT_DTOR(nsDisplayPluginVideo);
}
#endif
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap);
virtual bool ComputeVisibility(nsDisplayListBuilder* aBuilder,
nsRegion* aVisibleRegion,
const nsRect& aAllowVisibleRegionExpansion);
NS_DISPLAY_DECL_NAME("PluginVideo", TYPE_PLUGIN_VIDEO)
virtual already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
LayerManager* aManager,
const ContainerParameters& aContainerParameters)
{
return static_cast<nsObjectFrame*>(mFrame)->BuildLayer(aBuilder, aManager, this, aContainerParameters);
}