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8f2926cb81
thunderbird/firefox-1.5-theme-change.patch
Christopher Aillon 6ebcae650c update for fuzz
2008-09-19 16:34:53 +00:00

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Index: layout/base/nsPresContext.cpp
===================================================================
RCS file: /cvsroot/mozilla/layout/base/nsPresContext.cpp,v
retrieving revision 3.288.12.5
diff -d -u -p -r3.288.12.5 nsPresContext.cpp
--- layout/base/nsPresContext.cpp 17 May 2006 07:56:35 -0000 3.288.12.5
+++ layout/base/nsPresContext.cpp 19 Sep 2008 16:33:31 -0000
@@ -73,6 +73,9 @@
#include "nsIDOMDocument.h"
#include "nsAutoPtr.h"
#include "nsEventStateManager.h"
+#include "nsIEventQueue.h"
+#include "nsIEventQueueService.h"
+
#ifdef IBMBIDI
#include "nsBidiPresUtils.h"
#endif // IBMBIDI
@@ -267,6 +270,7 @@ nsPresContext::~nsPresContext()
NS_IF_RELEASE(mDeviceContext);
NS_IF_RELEASE(mLookAndFeel);
NS_IF_RELEASE(mLangGroup);
+ NS_IF_RELEASE(mEventQueueService);
}
NS_IMPL_ISUPPORTS2(nsPresContext, nsPresContext, nsIObserver)
@@ -285,6 +289,17 @@ static const char* const kGenericFont[]
".fantasy."
};
+// Set to true when LookAndFeelChanged needs to be called. This is used
+// because the look and feel is a service, so there's no need to notify it from
+// more than one prescontext.
+static PRBool sLookAndFeelChanged;
+
+// Set to true when ThemeChanged needs to be called on mTheme. This is used
+// because mTheme is a service, so there's no need to notify it from more than
+// one prescontext.
+static PRBool sThemeChanged;
+
+
void
nsPresContext::GetFontPreferences()
{
@@ -716,6 +731,9 @@ nsPresContext::Init(nsIDeviceContext* aD
this);
#endif
+ rv = CallGetService(NS_EVENTQUEUESERVICE_CONTRACTID, &mEventQueueService);
+ NS_ENSURE_SUCCESS(rv, rv);
+
// Initialize our state from the user preferences
GetUserPreferences();
@@ -1197,33 +1215,126 @@ nsPresContext::GetTheme()
void
nsPresContext::ThemeChanged()
{
+ if (!mPendingThemeChanged) {
+ sLookAndFeelChanged = PR_TRUE;
+ sThemeChanged = PR_TRUE;
+
+ nsCOMPtr<nsIEventQueue> eventQ;
+ mEventQueueService->
+ GetSpecialEventQueue(nsIEventQueueService::UI_THREAD_EVENT_QUEUE,
+ getter_AddRefs(eventQ));
+ if (!eventQ) {
+ return;
+ }
+
+ PLEvent* evt = new PLEvent();
+ if (!evt) {
+ return;
+ }
+
+ PL_InitEvent(evt, this, nsPresContext::ThemeChangedInternal,
+ nsPresContext::DestroyThemeChangeEvt);
+
+ // After this point, event destruction will release |this|
+ NS_ADDREF_THIS();
+
+ nsresult rv = eventQ->PostEvent(evt);
+ if (NS_FAILED(rv)) {
+ PL_DestroyEvent(evt);
+ } else {
+ mPendingThemeChanged = PR_TRUE;
+ }
+ }
+}
+
+void* PR_CALLBACK
+nsPresContext::ThemeChangedInternal(PLEvent *aEvent)
+{
+ nsPresContext* pc = NS_STATIC_CAST(nsPresContext*, aEvent->owner);
+
+ pc->mPendingThemeChanged = PR_FALSE;
+
// Tell the theme that it changed, so it can flush any handles to stale theme
// data.
- if (mTheme)
- mTheme->ThemeChanged();
+ if (pc->mTheme && sThemeChanged) {
+ pc->mTheme->ThemeChanged();
+ sThemeChanged = PR_FALSE;
+ }
// Clear all cached nsILookAndFeel colors.
- if (mLookAndFeel)
- mLookAndFeel->LookAndFeelChanged();
+ if (pc->mLookAndFeel && sLookAndFeelChanged) {
+ pc->mLookAndFeel->LookAndFeelChanged();
+ sLookAndFeelChanged = PR_FALSE;
+ }
// We have to clear style data because the assumption of style rule
// immutability has been violated since any style rule that uses
// system colors or fonts (and probably -moz-appearance as well) has
// changed.
- nsPresContext::ClearStyleDataAndReflow();
+ pc->ClearStyleDataAndReflow();
+
+ return nsnull;
+}
+
+
+void PR_CALLBACK
+nsPresContext::DestroyThemeChangeEvt(PLEvent* aEvent)
+{
+ nsPresContext* pc = NS_STATIC_CAST(nsPresContext*, aEvent->owner);
+ NS_RELEASE(pc);
+ delete aEvent;
}
void
nsPresContext::SysColorChanged()
{
- if (mLookAndFeel) {
+ if (!mPendingSysColorChanged) {
+ sLookAndFeelChanged = PR_TRUE;
+
+ nsCOMPtr<nsIEventQueue> eventQ;
+ mEventQueueService->
+ GetSpecialEventQueue(nsIEventQueueService::UI_THREAD_EVENT_QUEUE,
+ getter_AddRefs(eventQ));
+ if (!eventQ) {
+ return;
+ }
+
+ PLEvent* evt = new PLEvent();
+ if (!evt) {
+ return;
+ }
+
+ PL_InitEvent(evt, this, nsPresContext::SysColorChangedInternal,
+ nsPresContext::DestroySysColorChangeEvt);
+
+ // After this point, event destruction will release |this|
+ NS_ADDREF_THIS();
+
+ nsresult rv = eventQ->PostEvent(evt);
+ if (NS_FAILED(rv)) {
+ PL_DestroyEvent(evt);
+ } else {
+ mPendingSysColorChanged = PR_TRUE;
+ }
+ }
+}
+
+void* PR_CALLBACK
+nsPresContext::SysColorChangedInternal(PLEvent *aEvent)
+{
+ nsPresContext* pc = NS_STATIC_CAST(nsPresContext*, aEvent->owner);
+
+ pc->mPendingSysColorChanged = PR_FALSE;
+
+ if (pc->mLookAndFeel && sLookAndFeelChanged) {
// Don't use the cached values for the system colors
- mLookAndFeel->LookAndFeelChanged();
+ pc->mLookAndFeel->LookAndFeelChanged();
+ sLookAndFeelChanged = PR_FALSE;
}
-
+
// Reset default background and foreground colors for the document since
// they may be using system colors
- GetDocumentColorPreferences();
+ pc->GetDocumentColorPreferences();
// Clear out all of the style data since it may contain RGB values
// which originated from system colors.
@@ -1239,7 +1350,17 @@ nsPresContext::SysColorChanged()
// data without reflowing/updating views will lead to incorrect change hints
// later, because when generating change hints, any style structs which have
// been cleared and not reread are assumed to not be used at all.
- ClearStyleDataAndReflow();
+ pc->ClearStyleDataAndReflow();
+
+ return nsnull;
+}
+
+void PR_CALLBACK
+nsPresContext::DestroySysColorChangeEvt(PLEvent* aEvent)
+{
+ nsPresContext* pc = NS_STATIC_CAST(nsPresContext*, aEvent->owner);
+ NS_RELEASE(pc);
+ delete aEvent;
}
void
Index: layout/base/nsPresContext.h
===================================================================
RCS file: /cvsroot/mozilla/layout/base/nsPresContext.h,v
retrieving revision 3.150.4.3
diff -d -u -p -r3.150.4.3 nsPresContext.h
--- layout/base/nsPresContext.h 29 Aug 2007 23:07:47 -0000 3.150.4.3
+++ layout/base/nsPresContext.h 19 Sep 2008 16:33:31 -0000
@@ -56,6 +56,7 @@
#include "nsCRT.h"
#include "nsIPrintSettings.h"
#include "nsPropertyTable.h"
+#include "plevent.h"
#ifdef IBMBIDI
class nsBidiPresUtils;
#endif // IBMBIDI
@@ -76,6 +77,7 @@ class nsIAtom;
class nsIEventStateManager;
class nsIURI;
class nsILookAndFeel;
+class nsIEventQueueService;
class nsICSSPseudoComparator;
class nsIAtom;
struct nsStyleStruct;
@@ -630,6 +632,14 @@ public:
PRBool IsChrome();
protected:
+ static NS_HIDDEN_(void*) PR_CALLBACK ThemeChangedInternal(PLEvent* aEvent);
+ static NS_HIDDEN_(void*) PR_CALLBACK SysColorChangedInternal(PLEvent* aEvent);
+ static NS_HIDDEN_(void) PR_CALLBACK DestroyThemeChangeEvt(PLEvent* aEvent);
+ static NS_HIDDEN_(void) PR_CALLBACK DestroySysColorChangeEvt(PLEvent* aEvent);
+
+ friend void* PR_CALLBACK ThemeChangedInternal(PLEvent* aEvent);
+ friend void* PR_CALLBACK SysColorChangedInternal(PLEvent* aEvent);
+
NS_HIDDEN_(void) SetImgAnimations(nsIContent *aParent, PRUint16 aMode);
NS_HIDDEN_(void) GetDocumentColorPreferences();
@@ -657,6 +667,7 @@ protected:
// from gfx back to layout.
nsIEventStateManager* mEventManager; // [STRONG]
nsILookAndFeel* mLookAndFeel; // [STRONG]
+ nsIEventQueueService *mEventQueueService; // [STRONG]
nsIAtom* mMedium; // initialized by subclass ctors;
// weak pointer to static atom
@@ -727,6 +738,8 @@ protected:
unsigned mCanPaginatedScroll : 1;
unsigned mDoScaledTwips : 1;
unsigned mEnableJapaneseTransform : 1;
+ unsigned mPendingSysColorChanged : 1;
+ unsigned mPendingThemeChanged : 1;
#ifdef IBMBIDI
unsigned mIsVisual : 1;
unsigned mIsBidiSystem : 1;
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