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r=vidur. a=chofmann. Post a reflow event instead of doing reflow command processing synchronously. Currently this only happens on content appended and content inserted notificaitions in the pres shell.

This commit is contained in:
nisheeth%netscape.com 1999-11-09 03:23:26 +00:00
Родитель b08313a370
Коммит ab25264f7b
10 изменённых файлов: 420 добавлений и 62 удалений
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9
layout/base/nsIPresShell.h
Просмотреть файл

@ -141,7 +141,7 @@ public:
NS_IMETHOD EnterReflowLock() = 0;
NS_IMETHOD ExitReflowLock() = 0;
NS_IMETHOD ExitReflowLock(PRBool aTryToReflow, PRBool aDoSynchronousReflow) = 0;
// Make shell be a document observer
NS_IMETHOD BeginObservingDocument() = 0;
@ -350,6 +350,13 @@ public:
NS_IMETHOD GetHistoryState(nsILayoutHistoryState** aLayoutHistoryState) = 0;
NS_IMETHOD SetHistoryState(nsILayoutHistoryState* aLayoutHistoryState) = 0;
/**
* Get/Set the status that indicates whether the presshell knows about a
* pending reflow event
*/
NS_IMETHOD GetReflowEventStatus(PRBool* aPending) = 0;
NS_IMETHOD SetReflowEventStatus(PRBool aPending) = 0;
/**
* See if reflow verification is enabled. To enable reflow verification add
* "verifyreflow:1" to your NSPR_LOG_MODULES environment variable

226
layout/base/nsPresShell.cpp
Просмотреть файл

@ -70,6 +70,7 @@
#include "nsIScrollPositionListener.h"
#include "nsICompositeListener.h"
#include "stopwatch.h"
#include "nsWeakPtr.h"
#ifdef MOZ_PERF_METRICS
#include "nsITimeRecorder.h"
#endif
@ -84,6 +85,10 @@
#include "nsIFormatConverter.h"
#include "nsIWebShell.h"
#include "nsIBrowserWindow.h"
#include "nsIURI.h"
#include "nsIEventQueue.h"
#include "nsIEventQueueService.h"
// Drag & Drop, Clipboard Support
static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
@ -100,6 +105,7 @@ static NS_DEFINE_IID(kCXIFConverterCID, NS_XIFFORMATCONVERTER_CID);
// Class IID's
static NS_DEFINE_IID(kFrameSelectionCID, NS_FRAMESELECTION_CID);
static NS_DEFINE_IID(kCRangeCID, NS_RANGE_CID);
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
// IID's
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
@ -203,7 +209,8 @@ public:
NS_IMETHOD GetFrameSelection(nsIFrameSelection** aSelection);
NS_IMETHOD EnterReflowLock();
NS_IMETHOD ExitReflowLock();
NS_IMETHOD ExitReflowLock(PRBool aTryToReflow, PRBool aDoSynchronousReflow);
NS_IMETHOD BeginObservingDocument();
NS_IMETHOD EndObservingDocument();
NS_IMETHOD InitialReflow(nscoord aWidth, nscoord aHeight);
@ -220,7 +227,7 @@ public:
NS_IMETHOD GetPlaceholderFrameFor(nsIFrame* aFrame,
nsIFrame** aPlaceholderFrame) const;
NS_IMETHOD AppendReflowCommand(nsIReflowCommand* aReflowCommand);
NS_IMETHOD CancelReflowCommand(nsIFrame* aTargetFrame);
NS_IMETHOD CancelReflowCommand(nsIFrame* aTargetFrame);
NS_IMETHOD ProcessReflowCommands();
NS_IMETHOD ClearFrameRefs(nsIFrame* aFrame);
NS_IMETHOD CreateRenderingContext(nsIFrame *aFrame,
@ -242,6 +249,9 @@ public:
NS_IMETHOD GetHistoryState(nsILayoutHistoryState** aLayoutHistoryState);
NS_IMETHOD SetHistoryState(nsILayoutHistoryState* aLayoutHistoryState);
NS_IMETHOD GetReflowEventStatus(PRBool* aPending);
NS_IMETHOD SetReflowEventStatus(PRBool aPending);
//nsIViewObserver interface
NS_IMETHOD Paint(nsIView *aView,
@ -325,7 +335,7 @@ public:
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule);
NS_IMETHOD DocumentWillBeDestroyed(nsIDocument *aDocument);
protected:
virtual ~PresShell();
@ -366,6 +376,18 @@ protected:
PRBool mScrollingEnabled; //used to disable programmable scrolling from outside
nsIFrameManager* mFrameManager; // we hold a reference
PresShellViewEventListener *mViewEventListener;
PRBool mPendingReflowEvent;
nsCOMPtr<nsIEventQueue> mEventQueue;
#ifdef MOZ_PERF_METRICS
Stopwatch mReflowWatch; // Used for measuring time spent in reflow
Stopwatch mFrameCreationWatch; // Used for measuring time spent in frame creation
#endif
#ifdef DEBUG_nisheeth
PRInt32 mReflows;
PRInt32 mDiscardedReflowCommands;
#endif
private:
//helper funcs for disabing autoscrolling
@ -378,10 +400,9 @@ private:
void PushCurrentEventFrame();
void PopCurrentEventFrame();
#ifdef MOZ_PERF_METRICS
Stopwatch mReflowWatch; // Used for measuring time spent in reflow
Stopwatch mFrameCreationWatch; // Used for measuring time spent in frame creation
#endif
// helper function for posting reflow events
void PostReflowEvent();
PRBool AlreadyInQueue(nsIReflowCommand* aReflowCommand);
};
#ifdef NS_DEBUG
@ -485,6 +506,12 @@ PresShell::PresShell()
mCurrentEventContent = nsnull;
mCurrentEventFrame = nsnull;
EnableScrolling();
mPendingReflowEvent = PR_FALSE;
#ifdef DEBUG_nisheeth
mReflows = 0;
mDiscardedReflowCommands = 0;
#endif
}
NS_IMPL_ADDREF(PresShell)
@ -655,10 +682,15 @@ PresShell::Init(nsIDocument* aDocument,
if (nsWebShellContent == webShellType){
mDocument->SetDisplaySelection(PR_TRUE);
}
}
}
}
}
// Cache the event queue of the current UI thread
NS_WITH_SERVICE(nsIEventQueueService, eventService, kEventQueueServiceCID, &result);
if (NS_SUCCEEDED(result))
result = eventService->GetThreadEventQueue(PR_GetCurrentThread(), getter_AddRefs(mEventQueue));
return NS_OK;
}
@ -670,11 +702,14 @@ PresShell::EnterReflowLock()
}
NS_IMETHODIMP
PresShell::ExitReflowLock()
PresShell::ExitReflowLock(PRBool aTryToReflow, PRBool aDoSynchronousReflow)
{
PRUint32 newReflowLockCount = mReflowLockCount - 1;
if (newReflowLockCount == 0) {
ProcessReflowCommands();
if (newReflowLockCount == 0 && aTryToReflow) {
if (aDoSynchronousReflow)
ProcessReflowCommands();
else
PostReflowEvent();
}
mReflowLockCount = newReflowLockCount;
return NS_OK;
@ -978,7 +1013,7 @@ PresShell::InitialReflow(nscoord aWidth, nscoord aHeight)
NS_STOP_STOPWATCH(mReflowWatch)
}
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
if (mViewManager && mCaret && !mViewEventListener) {
nsIScrollableView* scrollingView = nsnull;
@ -1064,7 +1099,7 @@ PresShell::ResizeReflow(nscoord aWidth, nscoord aHeight)
printf("PresShell::ResizeReflow: null root frame\n");
#endif
}
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return NS_OK; //XXX this needs to be real. MMP
}
@ -1244,7 +1279,7 @@ PresShell::StyleChangeReflow()
NS_FRAME_LOG(NS_FRAME_TRACE_CALLS, ("exit nsPresShell::StyleChangeReflow"));
}
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return NS_OK; //XXX this needs to be real. MMP
}
@ -1325,6 +1360,20 @@ PresShell::BeginLoad(nsIDocument *aDocument)
NS_IMETHODIMP
PresShell::EndLoad(nsIDocument *aDocument)
{
#ifdef DEBUG_nisheeth
if (aDocument) {
nsIURI* uri = nsnull;
if ((uri = aDocument->GetDocumentURL())) {
char* spec = nsnull;
if (NS_SUCCEEDED(uri->GetSpec(&spec))) {
printf("**** Url: '%s', Reflows: %d, Discarded Reflows: %d\n", spec, mReflows, mDiscardedReflowCommands);
Recycle(spec);
}
}
NS_RELEASE(uri);
}
#endif
#ifdef MOZ_PERF_METRICS
// Dump reflow, style resolution and frame construction times here.
RAPTOR_STOPWATCH_DEBUGTRACE(("Stop: Reflow: PresShell::EndLoad(), this=%p\n", this));
@ -1365,6 +1414,44 @@ PresShell::EndReflow(nsIDocument *aDocument, nsIPresShell* aShell)
return NS_OK;
}
// aReflowCommand is considered to be already in the queue if the
// frame it targets is targeted by a pre-existing reflow command in
// the queue.
PRBool
PresShell::AlreadyInQueue(nsIReflowCommand* aReflowCommand)
{
PRInt32 i, n = mReflowCommands.Count();
nsIFrame* targetFrame;
PRBool inQueue = PR_FALSE;
if (NS_SUCCEEDED(aReflowCommand->GetTarget(targetFrame))) {
// Iterate over the reflow commands and compare the targeted frames.
for (i = 0; i < n; i++) {
nsIReflowCommand* rc = (nsIReflowCommand*) mReflowCommands.ElementAt(i);
if (rc) {
nsIFrame* targetOfQueuedRC;
if (NS_SUCCEEDED(rc->GetTarget(targetOfQueuedRC))) {
nsIReflowCommand::ReflowType RCType;
nsIReflowCommand::ReflowType queuedRCType;
aReflowCommand->GetType(RCType);
rc->GetType(queuedRCType);
if (targetFrame == targetOfQueuedRC &&
RCType == queuedRCType) {
#ifdef DEBUG_nisheeth
mDiscardedReflowCommands++;
#endif
inQueue = PR_TRUE;
break;
}
}
}
}
}
return inQueue;
}
NS_IMETHODIMP
PresShell::AppendReflowCommand(nsIReflowCommand* aReflowCommand)
{
@ -1387,8 +1474,14 @@ PresShell::AppendReflowCommand(nsIReflowCommand* aReflowCommand)
}
}
#endif
NS_ADDREF(aReflowCommand);
return (mReflowCommands.AppendElement(aReflowCommand) ? NS_OK : NS_ERROR_OUT_OF_MEMORY);
PRInt32 index = nsnull;
nsresult rv = NS_OK;
if (!AlreadyInQueue(aReflowCommand)) {
NS_ADDREF(aReflowCommand);
rv = (mReflowCommands.AppendElement(aReflowCommand) ? NS_OK : NS_ERROR_OUT_OF_MEMORY);
}
return rv;
}
NS_IMETHODIMP
@ -1418,6 +1511,66 @@ PresShell::CancelReflowCommand(nsIFrame* aTargetFrame)
return NS_OK;
}
//-------------- Begin Reflow Event Definition ------------------------
struct ReflowEvent : public PLEvent {
ReflowEvent(nsIPresShell* aPresShell, nsIEventQueue* aQueue);
~ReflowEvent() { }
void HandleEvent() {
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShell);
if (presShell) {
presShell->EnterReflowLock();
presShell->ProcessReflowCommands();
presShell->ExitReflowLock(PR_FALSE, PR_TRUE);
presShell->SetReflowEventStatus(PR_FALSE);
}
else
mPresShell = 0;
}
nsWeakPtr mPresShell;
};
static void PR_CALLBACK HandlePLEvent(ReflowEvent* aEvent)
{
aEvent->HandleEvent();
}
static void PR_CALLBACK DestroyPLEvent(ReflowEvent* aEvent)
{
delete aEvent;
}
ReflowEvent::ReflowEvent(nsIPresShell* aPresShell, nsIEventQueue* aQueue)
{
NS_ASSERTION(aPresShell && aQueue, "Null parameters!");
mPresShell = getter_AddRefs(NS_GetWeakReference(aPresShell));
PL_InitEvent(this, nsnull,
(PLHandleEventProc) ::HandlePLEvent,
(PLDestroyEventProc) ::DestroyPLEvent);
aQueue->PostEvent(this);
}
//-------------- End Reflow Event Definition ---------------------------
void
PresShell::PostReflowEvent()
{
if (!mPendingReflowEvent) {
ReflowEvent* ev;
ev = new ReflowEvent((nsIPresShell*) this, mEventQueue);
mPendingReflowEvent = PR_TRUE;
}
}
NS_IMETHODIMP
PresShell::ProcessReflowCommands()
{
@ -1428,6 +1581,10 @@ PresShell::ProcessReflowCommands()
nsIRenderingContext* rcx;
nsIFrame* rootFrame;
#ifdef DEBUG_nisheeth
mReflows++;
#endif
mFrameManager->GetRootFrame(&rootFrame);
CreateRenderingContext(rootFrame, &rcx);
@ -1827,6 +1984,21 @@ PresShell::SetHistoryState(nsILayoutHistoryState* aLayoutHistoryState)
return NS_OK;
}
NS_IMETHODIMP
PresShell::GetReflowEventStatus(PRBool* aPending)
{
if (aPending)
*aPending = mPendingReflowEvent;
return NS_OK;
}
NS_IMETHODIMP
PresShell::SetReflowEventStatus(PRBool aPending)
{
mPendingReflowEvent = aPending;
return NS_OK;
}
NS_IMETHODIMP
PresShell::ContentChanged(nsIDocument *aDocument,
nsIContent* aContent,
@ -1835,7 +2007,7 @@ PresShell::ContentChanged(nsIDocument *aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->ContentChanged(mPresContext, aContent, aSubContent);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1848,7 +2020,7 @@ PresShell::ContentStatesChanged(nsIDocument* aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->ContentStatesChanged(mPresContext, aContent1, aContent2);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1864,7 +2036,7 @@ PresShell::AttributeChanged(nsIDocument *aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->AttributeChanged(mPresContext, aContent, aNameSpaceID, aAttribute, aHint);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1891,7 +2063,7 @@ PresShell::ContentAppended(nsIDocument *aDocument,
RAPTOR_STOPWATCH_DEBUGTRACE(("Stop: Frame Creation: PresShell::ContentAppended(), this=%p\n", this));
NS_STOP_STOPWATCH(mFrameCreationWatch)
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_FALSE);
return rv;
}
@ -1904,7 +2076,7 @@ PresShell::ContentInserted(nsIDocument* aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->ContentInserted(mPresContext, aContainer, aChild, aIndexInContainer);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_FALSE);
return rv;
}
@ -1919,7 +2091,7 @@ PresShell::ContentReplaced(nsIDocument* aDocument,
nsresult rv = mStyleSet->ContentReplaced(mPresContext, aContainer, aOldChild,
aNewChild, aIndexInContainer);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1933,7 +2105,7 @@ PresShell::ContentRemoved(nsIDocument *aDocument,
nsresult rv = mStyleSet->ContentRemoved(mPresContext, aContainer,
aChild, aIndexInContainer);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1945,7 +2117,7 @@ PresShell::ReconstructFrames(void)
EnterReflowLock();
rv = mStyleSet->ReconstructDocElementHierarchy(mPresContext);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1982,7 +2154,7 @@ PresShell::StyleRuleChanged(nsIDocument *aDocument,
nsresult rv = mStyleSet->StyleRuleChanged(mPresContext, aStyleSheet,
aStyleRule, aHint);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1995,7 +2167,7 @@ PresShell::StyleRuleAdded(nsIDocument *aDocument,
nsresult rv = mStyleSet->StyleRuleAdded(mPresContext, aStyleSheet,
aStyleRule);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) {
return rv;
}
@ -2012,7 +2184,7 @@ PresShell::StyleRuleRemoved(nsIDocument *aDocument,
nsresult rv = mStyleSet->StyleRuleRemoved(mPresContext, aStyleSheet,
aStyleRule);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) {
return rv;
}

9
layout/base/public/nsIPresShell.h
Просмотреть файл

@ -141,7 +141,7 @@ public:
NS_IMETHOD EnterReflowLock() = 0;
NS_IMETHOD ExitReflowLock() = 0;
NS_IMETHOD ExitReflowLock(PRBool aTryToReflow, PRBool aDoSynchronousReflow) = 0;
// Make shell be a document observer
NS_IMETHOD BeginObservingDocument() = 0;
@ -350,6 +350,13 @@ public:
NS_IMETHOD GetHistoryState(nsILayoutHistoryState** aLayoutHistoryState) = 0;
NS_IMETHOD SetHistoryState(nsILayoutHistoryState* aLayoutHistoryState) = 0;
/**
* Get/Set the status that indicates whether the presshell knows about a
* pending reflow event
*/
NS_IMETHOD GetReflowEventStatus(PRBool* aPending) = 0;
NS_IMETHOD SetReflowEventStatus(PRBool aPending) = 0;
/**
* See if reflow verification is enabled. To enable reflow verification add
* "verifyreflow:1" to your NSPR_LOG_MODULES environment variable

2
layout/base/src/nsFrameImageLoader.cpp
Просмотреть файл

@ -506,7 +506,7 @@ nsFrameImageLoader::NotifyFrames(PRBool aIsSizeUpdate)
}
if (shell) {
shell->ExitReflowLock();
shell->ExitReflowLock(PR_TRUE, PR_TRUE);
NS_RELEASE(shell);
}
}

2
layout/forms/nsComboboxControlFrame.cpp
Просмотреть файл

@ -1067,7 +1067,7 @@ nsComboboxControlFrame::SelectionChanged()
if (NS_SUCCEEDED(rv) && shell) {
if (NS_SUCCEEDED(shell->EnterReflowLock())) {
shell->AppendReflowCommand(cmd);
shell->ExitReflowLock();
shell->ExitReflowLock(PR_TRUE, PR_TRUE);
}
}
NS_RELEASE(cmd);

2
layout/generic/nsBulletFrame.cpp
Просмотреть файл

@ -767,7 +767,7 @@ nsBulletFrame::UpdateBulletCB(nsIPresContext* aPresContext,
shell->EnterReflowLock();
shell->AppendReflowCommand(cmd);
NS_RELEASE(cmd);
shell->ExitReflowLock();
shell->ExitReflowLock(PR_TRUE, PR_TRUE);
}
}
}

2
layout/html/base/src/nsBulletFrame.cpp
Просмотреть файл

@ -767,7 +767,7 @@ nsBulletFrame::UpdateBulletCB(nsIPresContext* aPresContext,
shell->EnterReflowLock();
shell->AppendReflowCommand(cmd);
NS_RELEASE(cmd);
shell->ExitReflowLock();
shell->ExitReflowLock(PR_TRUE, PR_TRUE);
}
}
}

226
layout/html/base/src/nsPresShell.cpp
Просмотреть файл

@ -70,6 +70,7 @@
#include "nsIScrollPositionListener.h"
#include "nsICompositeListener.h"
#include "stopwatch.h"
#include "nsWeakPtr.h"
#ifdef MOZ_PERF_METRICS
#include "nsITimeRecorder.h"
#endif
@ -84,6 +85,10 @@
#include "nsIFormatConverter.h"
#include "nsIWebShell.h"
#include "nsIBrowserWindow.h"
#include "nsIURI.h"
#include "nsIEventQueue.h"
#include "nsIEventQueueService.h"
// Drag & Drop, Clipboard Support
static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
@ -100,6 +105,7 @@ static NS_DEFINE_IID(kCXIFConverterCID, NS_XIFFORMATCONVERTER_CID);
// Class IID's
static NS_DEFINE_IID(kFrameSelectionCID, NS_FRAMESELECTION_CID);
static NS_DEFINE_IID(kCRangeCID, NS_RANGE_CID);
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
// IID's
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
@ -203,7 +209,8 @@ public:
NS_IMETHOD GetFrameSelection(nsIFrameSelection** aSelection);
NS_IMETHOD EnterReflowLock();
NS_IMETHOD ExitReflowLock();
NS_IMETHOD ExitReflowLock(PRBool aTryToReflow, PRBool aDoSynchronousReflow);
NS_IMETHOD BeginObservingDocument();
NS_IMETHOD EndObservingDocument();
NS_IMETHOD InitialReflow(nscoord aWidth, nscoord aHeight);
@ -220,7 +227,7 @@ public:
NS_IMETHOD GetPlaceholderFrameFor(nsIFrame* aFrame,
nsIFrame** aPlaceholderFrame) const;
NS_IMETHOD AppendReflowCommand(nsIReflowCommand* aReflowCommand);
NS_IMETHOD CancelReflowCommand(nsIFrame* aTargetFrame);
NS_IMETHOD CancelReflowCommand(nsIFrame* aTargetFrame);
NS_IMETHOD ProcessReflowCommands();
NS_IMETHOD ClearFrameRefs(nsIFrame* aFrame);
NS_IMETHOD CreateRenderingContext(nsIFrame *aFrame,
@ -242,6 +249,9 @@ public:
NS_IMETHOD GetHistoryState(nsILayoutHistoryState** aLayoutHistoryState);
NS_IMETHOD SetHistoryState(nsILayoutHistoryState* aLayoutHistoryState);
NS_IMETHOD GetReflowEventStatus(PRBool* aPending);
NS_IMETHOD SetReflowEventStatus(PRBool aPending);
//nsIViewObserver interface
NS_IMETHOD Paint(nsIView *aView,
@ -325,7 +335,7 @@ public:
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule);
NS_IMETHOD DocumentWillBeDestroyed(nsIDocument *aDocument);
protected:
virtual ~PresShell();
@ -366,6 +376,18 @@ protected:
PRBool mScrollingEnabled; //used to disable programmable scrolling from outside
nsIFrameManager* mFrameManager; // we hold a reference
PresShellViewEventListener *mViewEventListener;
PRBool mPendingReflowEvent;
nsCOMPtr<nsIEventQueue> mEventQueue;
#ifdef MOZ_PERF_METRICS
Stopwatch mReflowWatch; // Used for measuring time spent in reflow
Stopwatch mFrameCreationWatch; // Used for measuring time spent in frame creation
#endif
#ifdef DEBUG_nisheeth
PRInt32 mReflows;
PRInt32 mDiscardedReflowCommands;
#endif
private:
//helper funcs for disabing autoscrolling
@ -378,10 +400,9 @@ private:
void PushCurrentEventFrame();
void PopCurrentEventFrame();
#ifdef MOZ_PERF_METRICS
Stopwatch mReflowWatch; // Used for measuring time spent in reflow
Stopwatch mFrameCreationWatch; // Used for measuring time spent in frame creation
#endif
// helper function for posting reflow events
void PostReflowEvent();
PRBool AlreadyInQueue(nsIReflowCommand* aReflowCommand);
};
#ifdef NS_DEBUG
@ -485,6 +506,12 @@ PresShell::PresShell()
mCurrentEventContent = nsnull;
mCurrentEventFrame = nsnull;
EnableScrolling();
mPendingReflowEvent = PR_FALSE;
#ifdef DEBUG_nisheeth
mReflows = 0;
mDiscardedReflowCommands = 0;
#endif
}
NS_IMPL_ADDREF(PresShell)
@ -655,10 +682,15 @@ PresShell::Init(nsIDocument* aDocument,
if (nsWebShellContent == webShellType){
mDocument->SetDisplaySelection(PR_TRUE);
}
}
}
}
}
// Cache the event queue of the current UI thread
NS_WITH_SERVICE(nsIEventQueueService, eventService, kEventQueueServiceCID, &result);
if (NS_SUCCEEDED(result))
result = eventService->GetThreadEventQueue(PR_GetCurrentThread(), getter_AddRefs(mEventQueue));
return NS_OK;
}
@ -670,11 +702,14 @@ PresShell::EnterReflowLock()
}
NS_IMETHODIMP
PresShell::ExitReflowLock()
PresShell::ExitReflowLock(PRBool aTryToReflow, PRBool aDoSynchronousReflow)
{
PRUint32 newReflowLockCount = mReflowLockCount - 1;
if (newReflowLockCount == 0) {
ProcessReflowCommands();
if (newReflowLockCount == 0 && aTryToReflow) {
if (aDoSynchronousReflow)
ProcessReflowCommands();
else
PostReflowEvent();
}
mReflowLockCount = newReflowLockCount;
return NS_OK;
@ -978,7 +1013,7 @@ PresShell::InitialReflow(nscoord aWidth, nscoord aHeight)
NS_STOP_STOPWATCH(mReflowWatch)
}
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
if (mViewManager && mCaret && !mViewEventListener) {
nsIScrollableView* scrollingView = nsnull;
@ -1064,7 +1099,7 @@ PresShell::ResizeReflow(nscoord aWidth, nscoord aHeight)
printf("PresShell::ResizeReflow: null root frame\n");
#endif
}
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return NS_OK; //XXX this needs to be real. MMP
}
@ -1244,7 +1279,7 @@ PresShell::StyleChangeReflow()
NS_FRAME_LOG(NS_FRAME_TRACE_CALLS, ("exit nsPresShell::StyleChangeReflow"));
}
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return NS_OK; //XXX this needs to be real. MMP
}
@ -1325,6 +1360,20 @@ PresShell::BeginLoad(nsIDocument *aDocument)
NS_IMETHODIMP
PresShell::EndLoad(nsIDocument *aDocument)
{
#ifdef DEBUG_nisheeth
if (aDocument) {
nsIURI* uri = nsnull;
if ((uri = aDocument->GetDocumentURL())) {
char* spec = nsnull;
if (NS_SUCCEEDED(uri->GetSpec(&spec))) {
printf("**** Url: '%s', Reflows: %d, Discarded Reflows: %d\n", spec, mReflows, mDiscardedReflowCommands);
Recycle(spec);
}
}
NS_RELEASE(uri);
}
#endif
#ifdef MOZ_PERF_METRICS
// Dump reflow, style resolution and frame construction times here.
RAPTOR_STOPWATCH_DEBUGTRACE(("Stop: Reflow: PresShell::EndLoad(), this=%p\n", this));
@ -1365,6 +1414,44 @@ PresShell::EndReflow(nsIDocument *aDocument, nsIPresShell* aShell)
return NS_OK;
}
// aReflowCommand is considered to be already in the queue if the
// frame it targets is targeted by a pre-existing reflow command in
// the queue.
PRBool
PresShell::AlreadyInQueue(nsIReflowCommand* aReflowCommand)
{
PRInt32 i, n = mReflowCommands.Count();
nsIFrame* targetFrame;
PRBool inQueue = PR_FALSE;
if (NS_SUCCEEDED(aReflowCommand->GetTarget(targetFrame))) {
// Iterate over the reflow commands and compare the targeted frames.
for (i = 0; i < n; i++) {
nsIReflowCommand* rc = (nsIReflowCommand*) mReflowCommands.ElementAt(i);
if (rc) {
nsIFrame* targetOfQueuedRC;
if (NS_SUCCEEDED(rc->GetTarget(targetOfQueuedRC))) {
nsIReflowCommand::ReflowType RCType;
nsIReflowCommand::ReflowType queuedRCType;
aReflowCommand->GetType(RCType);
rc->GetType(queuedRCType);
if (targetFrame == targetOfQueuedRC &&
RCType == queuedRCType) {
#ifdef DEBUG_nisheeth
mDiscardedReflowCommands++;
#endif
inQueue = PR_TRUE;
break;
}
}
}
}
}
return inQueue;
}
NS_IMETHODIMP
PresShell::AppendReflowCommand(nsIReflowCommand* aReflowCommand)
{
@ -1387,8 +1474,14 @@ PresShell::AppendReflowCommand(nsIReflowCommand* aReflowCommand)
}
}
#endif
NS_ADDREF(aReflowCommand);
return (mReflowCommands.AppendElement(aReflowCommand) ? NS_OK : NS_ERROR_OUT_OF_MEMORY);
PRInt32 index = nsnull;
nsresult rv = NS_OK;
if (!AlreadyInQueue(aReflowCommand)) {
NS_ADDREF(aReflowCommand);
rv = (mReflowCommands.AppendElement(aReflowCommand) ? NS_OK : NS_ERROR_OUT_OF_MEMORY);
}
return rv;
}
NS_IMETHODIMP
@ -1418,6 +1511,66 @@ PresShell::CancelReflowCommand(nsIFrame* aTargetFrame)
return NS_OK;
}
//-------------- Begin Reflow Event Definition ------------------------
struct ReflowEvent : public PLEvent {
ReflowEvent(nsIPresShell* aPresShell, nsIEventQueue* aQueue);
~ReflowEvent() { }
void HandleEvent() {
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShell);
if (presShell) {
presShell->EnterReflowLock();
presShell->ProcessReflowCommands();
presShell->ExitReflowLock(PR_FALSE, PR_TRUE);
presShell->SetReflowEventStatus(PR_FALSE);
}
else
mPresShell = 0;
}
nsWeakPtr mPresShell;
};
static void PR_CALLBACK HandlePLEvent(ReflowEvent* aEvent)
{
aEvent->HandleEvent();
}
static void PR_CALLBACK DestroyPLEvent(ReflowEvent* aEvent)
{
delete aEvent;
}
ReflowEvent::ReflowEvent(nsIPresShell* aPresShell, nsIEventQueue* aQueue)
{
NS_ASSERTION(aPresShell && aQueue, "Null parameters!");
mPresShell = getter_AddRefs(NS_GetWeakReference(aPresShell));
PL_InitEvent(this, nsnull,
(PLHandleEventProc) ::HandlePLEvent,
(PLDestroyEventProc) ::DestroyPLEvent);
aQueue->PostEvent(this);
}
//-------------- End Reflow Event Definition ---------------------------
void
PresShell::PostReflowEvent()
{
if (!mPendingReflowEvent) {
ReflowEvent* ev;
ev = new ReflowEvent((nsIPresShell*) this, mEventQueue);
mPendingReflowEvent = PR_TRUE;
}
}
NS_IMETHODIMP
PresShell::ProcessReflowCommands()
{
@ -1428,6 +1581,10 @@ PresShell::ProcessReflowCommands()
nsIRenderingContext* rcx;
nsIFrame* rootFrame;
#ifdef DEBUG_nisheeth
mReflows++;
#endif
mFrameManager->GetRootFrame(&rootFrame);
CreateRenderingContext(rootFrame, &rcx);
@ -1827,6 +1984,21 @@ PresShell::SetHistoryState(nsILayoutHistoryState* aLayoutHistoryState)
return NS_OK;
}
NS_IMETHODIMP
PresShell::GetReflowEventStatus(PRBool* aPending)
{
if (aPending)
*aPending = mPendingReflowEvent;
return NS_OK;
}
NS_IMETHODIMP
PresShell::SetReflowEventStatus(PRBool aPending)
{
mPendingReflowEvent = aPending;
return NS_OK;
}
NS_IMETHODIMP
PresShell::ContentChanged(nsIDocument *aDocument,
nsIContent* aContent,
@ -1835,7 +2007,7 @@ PresShell::ContentChanged(nsIDocument *aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->ContentChanged(mPresContext, aContent, aSubContent);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1848,7 +2020,7 @@ PresShell::ContentStatesChanged(nsIDocument* aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->ContentStatesChanged(mPresContext, aContent1, aContent2);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1864,7 +2036,7 @@ PresShell::AttributeChanged(nsIDocument *aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->AttributeChanged(mPresContext, aContent, aNameSpaceID, aAttribute, aHint);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1891,7 +2063,7 @@ PresShell::ContentAppended(nsIDocument *aDocument,
RAPTOR_STOPWATCH_DEBUGTRACE(("Stop: Frame Creation: PresShell::ContentAppended(), this=%p\n", this));
NS_STOP_STOPWATCH(mFrameCreationWatch)
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_FALSE);
return rv;
}
@ -1904,7 +2076,7 @@ PresShell::ContentInserted(nsIDocument* aDocument,
EnterReflowLock();
nsresult rv = mStyleSet->ContentInserted(mPresContext, aContainer, aChild, aIndexInContainer);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_FALSE);
return rv;
}
@ -1919,7 +2091,7 @@ PresShell::ContentReplaced(nsIDocument* aDocument,
nsresult rv = mStyleSet->ContentReplaced(mPresContext, aContainer, aOldChild,
aNewChild, aIndexInContainer);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1933,7 +2105,7 @@ PresShell::ContentRemoved(nsIDocument *aDocument,
nsresult rv = mStyleSet->ContentRemoved(mPresContext, aContainer,
aChild, aIndexInContainer);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1945,7 +2117,7 @@ PresShell::ReconstructFrames(void)
EnterReflowLock();
rv = mStyleSet->ReconstructDocElementHierarchy(mPresContext);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1982,7 +2154,7 @@ PresShell::StyleRuleChanged(nsIDocument *aDocument,
nsresult rv = mStyleSet->StyleRuleChanged(mPresContext, aStyleSheet,
aStyleRule, aHint);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
return rv;
}
@ -1995,7 +2167,7 @@ PresShell::StyleRuleAdded(nsIDocument *aDocument,
nsresult rv = mStyleSet->StyleRuleAdded(mPresContext, aStyleSheet,
aStyleRule);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) {
return rv;
}
@ -2012,7 +2184,7 @@ PresShell::StyleRuleRemoved(nsIDocument *aDocument,
nsresult rv = mStyleSet->StyleRuleRemoved(mPresContext, aStyleSheet,
aStyleRule);
VERIFY_STYLE_TREE;
ExitReflowLock();
ExitReflowLock(PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) {
return rv;
}

2
layout/html/forms/src/nsComboboxControlFrame.cpp
Просмотреть файл

@ -1067,7 +1067,7 @@ nsComboboxControlFrame::SelectionChanged()
if (NS_SUCCEEDED(rv) && shell) {
if (NS_SUCCEEDED(shell->EnterReflowLock())) {
shell->AppendReflowCommand(cmd);
shell->ExitReflowLock();
shell->ExitReflowLock(PR_TRUE, PR_TRUE);
}
}
NS_RELEASE(cmd);

2
layout/html/forms/src/nsGfxTextControlFrame.cpp
Просмотреть файл

@ -600,7 +600,7 @@ nsGfxTextControlFrame::CreateSubDoc(nsRect *aSizeOfSubdocContainer)
if (NS_FAILED(rv)) { return rv; }
rv = shell->AppendReflowCommand(cmd);
// must do this next line regardless of result of AppendReflowCommand
shell->ExitReflowLock();
shell->ExitReflowLock(PR_TRUE, PR_TRUE);
}
return rv;
}