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Bug 668157 part.1 Add Preferences::GetType() and Preferences::GetDefaultType() r=roc

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This commit is contained in:
Masayuki Nakano 2012-04-04 13:06:27 +09:00
parent a892cfdc01
commit fdfd964ead
2 changed files with 30 additions and 0 deletions
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10
modules/libpref/public/Preferences.h
View File

@ -237,6 +237,11 @@ public:
*/
static bool HasUserValue(const char* aPref);
/**
* Gets the type of the pref.
*/
static PRInt32 GetType(const char* aPref);
/**
* Adds/Removes the observer for the root pref branch.
* The observer is referenced strongly if AddStrongObserver is used. On the
@ -343,6 +348,11 @@ public:
static nsresult GetDefaultComplex(const char* aPref, const nsIID &aType,
void** aResult);
/**
* Gets the type of the pref.
*/
static PRInt32 GetDefaultType(const char* aPref);
// Used to synchronise preferences between chrome and content processes.
static void MirrorPreferences(nsTArray<PrefTuple,
nsTArrayInfallibleAllocator> *aArray);

20
modules/libpref/src/Preferences.cpp
View File

@ -1328,6 +1328,16 @@ Preferences::HasUserValue(const char* aPref)
return PREF_HasUserPref(aPref);
}
// static
PRInt32
Preferences::GetType(const char* aPref)
{
NS_ENSURE_TRUE(InitStaticMembers(), nsIPrefBranch::PREF_INVALID);
PRInt32 result;
return NS_SUCCEEDED(sRootBranch->GetPrefType(aPref, &result)) ?
result : nsIPrefBranch::PREF_INVALID;
}
// static
nsresult
Preferences::AddStrongObserver(nsIObserver* aObserver,
@ -1640,4 +1650,14 @@ Preferences::GetDefaultComplex(const char* aPref, const nsIID &aType,
return sDefaultRootBranch->GetComplexValue(aPref, aType, aResult);
}
// static
PRInt32
Preferences::GetDefaultType(const char* aPref)
{
NS_ENSURE_TRUE(InitStaticMembers(), nsIPrefBranch::PREF_INVALID);
PRInt32 result;
return NS_SUCCEEDED(sDefaultRootBranch->GetPrefType(aPref, &result)) ?
result : nsIPrefBranch::PREF_INVALID;
}
} // namespace mozilla