diff options
Diffstat (limited to 'widget/android/PrefsHelper.h')
| -rw-r--r-- | widget/android/PrefsHelper.h | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/widget/android/PrefsHelper.h b/widget/android/PrefsHelper.h deleted file mode 100644 index b053c979a..000000000 --- a/widget/android/PrefsHelper.h +++ /dev/null @@ -1,324 +0,0 @@ -/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- - * 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/. */ - -#ifndef PrefsHelper_h -#define PrefsHelper_h - -#include "GeneratedJNINatives.h" -#include "MainThreadUtils.h" -#include "nsAppShell.h" -#include "nsCOMPtr.h" -#include "nsVariant.h" - -#include "mozilla/Preferences.h" -#include "mozilla/Services.h" - -namespace mozilla { - -class PrefsHelper - : public java::PrefsHelper::Natives<PrefsHelper> -{ - PrefsHelper() = delete; - - static bool GetVariantPref(nsIObserverService* aObsServ, - nsIWritableVariant* aVariant, - jni::Object::Param aPrefHandler, - const jni::String::LocalRef& aPrefName) - { - if (NS_FAILED(aObsServ->NotifyObservers(aVariant, "android-get-pref", - aPrefName->ToString().get()))) { - return false; - } - - uint16_t varType = nsIDataType::VTYPE_EMPTY; - if (NS_FAILED(aVariant->GetDataType(&varType))) { - return false; - } - - int32_t type = java::PrefsHelper::PREF_INVALID; - bool boolVal = false; - int32_t intVal = 0; - nsAutoString strVal; - - switch (varType) { - case nsIDataType::VTYPE_BOOL: - type = java::PrefsHelper::PREF_BOOL; - if (NS_FAILED(aVariant->GetAsBool(&boolVal))) { - return false; - } - break; - case nsIDataType::VTYPE_INT32: - type = java::PrefsHelper::PREF_INT; - if (NS_FAILED(aVariant->GetAsInt32(&intVal))) { - return false; - } - break; - case nsIDataType::VTYPE_ASTRING: - type = java::PrefsHelper::PREF_STRING; - if (NS_FAILED(aVariant->GetAsAString(strVal))) { - return false; - } - break; - default: - return false; - } - - jni::StringParam jstrVal(type == java::PrefsHelper::PREF_STRING ? - jni::StringParam(strVal, aPrefName.Env()) : - jni::StringParam(nullptr)); - - if (aPrefHandler) { - java::PrefsHelper::CallPrefHandler( - aPrefHandler, type, aPrefName, - boolVal, intVal, jstrVal); - } else { - java::PrefsHelper::OnPrefChange( - aPrefName, type, boolVal, intVal, jstrVal); - } - return true; - } - - static bool SetVariantPref(nsIObserverService* aObsServ, - nsIWritableVariant* aVariant, - jni::String::Param aPrefName, - bool aFlush, - int32_t aType, - bool aBoolVal, - int32_t aIntVal, - jni::String::Param aStrVal) - { - nsresult rv = NS_ERROR_FAILURE; - - switch (aType) { - case java::PrefsHelper::PREF_BOOL: - rv = aVariant->SetAsBool(aBoolVal); - break; - case java::PrefsHelper::PREF_INT: - rv = aVariant->SetAsInt32(aIntVal); - break; - case java::PrefsHelper::PREF_STRING: - rv = aVariant->SetAsAString(aStrVal->ToString()); - break; - } - - if (NS_SUCCEEDED(rv)) { - rv = aObsServ->NotifyObservers(aVariant, "android-set-pref", - aPrefName->ToString().get()); - } - - uint16_t varType = nsIDataType::VTYPE_EMPTY; - if (NS_SUCCEEDED(rv)) { - rv = aVariant->GetDataType(&varType); - } - - // We use set-to-empty to signal the pref was handled. - const bool handled = varType == nsIDataType::VTYPE_EMPTY; - - if (NS_SUCCEEDED(rv) && handled && aFlush) { - rv = Preferences::GetService()->SavePrefFile(nullptr); - } - - if (NS_SUCCEEDED(rv)) { - return handled; - } - - NS_WARNING(nsPrintfCString("Failed to set pref %s", - aPrefName->ToCString().get()).get()); - // Pretend we handled the pref. - return true; - } - -public: - static void GetPrefs(const jni::Class::LocalRef& aCls, - jni::ObjectArray::Param aPrefNames, - jni::Object::Param aPrefHandler) - { - nsTArray<jni::Object::LocalRef> nameRefArray(aPrefNames->GetElements()); - nsCOMPtr<nsIObserverService> obsServ; - nsCOMPtr<nsIWritableVariant> value; - nsAdoptingString strVal; - - for (jni::Object::LocalRef& nameRef : nameRefArray) { - jni::String::LocalRef nameStr(mozilla::Move(nameRef)); - const nsCString& name = nameStr->ToCString(); - - int32_t type = java::PrefsHelper::PREF_INVALID; - bool boolVal = false; - int32_t intVal = 0; - - switch (Preferences::GetType(name.get())) { - case nsIPrefBranch::PREF_BOOL: - type = java::PrefsHelper::PREF_BOOL; - boolVal = Preferences::GetBool(name.get()); - break; - - case nsIPrefBranch::PREF_INT: - type = java::PrefsHelper::PREF_INT; - intVal = Preferences::GetInt(name.get()); - break; - - case nsIPrefBranch::PREF_STRING: - type = java::PrefsHelper::PREF_STRING; - strVal = Preferences::GetLocalizedString(name.get()); - if (!strVal) { - strVal = Preferences::GetString(name.get()); - } - break; - - default: - // Pref not found; try to find it. - if (!obsServ) { - obsServ = services::GetObserverService(); - if (!obsServ) { - continue; - } - } - if (value) { - value->SetAsEmpty(); - } else { - value = new nsVariant(); - } - if (!GetVariantPref(obsServ, value, - aPrefHandler, nameStr)) { - NS_WARNING(nsPrintfCString("Failed to get pref %s", - name.get()).get()); - } - continue; - } - - java::PrefsHelper::CallPrefHandler( - aPrefHandler, type, nameStr, boolVal, intVal, - jni::StringParam(type == java::PrefsHelper::PREF_STRING ? - jni::StringParam(strVal, aCls.Env()) : - jni::StringParam(nullptr))); - } - - java::PrefsHelper::CallPrefHandler( - aPrefHandler, java::PrefsHelper::PREF_FINISH, - nullptr, false, 0, nullptr); - } - - static void SetPref(jni::String::Param aPrefName, - bool aFlush, - int32_t aType, - bool aBoolVal, - int32_t aIntVal, - jni::String::Param aStrVal) - { - const nsCString& name = aPrefName->ToCString(); - - if (Preferences::GetType(name.get()) == nsIPrefBranch::PREF_INVALID) { - // No pref; try asking first. - nsCOMPtr<nsIObserverService> obsServ = - services::GetObserverService(); - nsCOMPtr<nsIWritableVariant> value = new nsVariant(); - if (obsServ && SetVariantPref(obsServ, value, aPrefName, aFlush, - aType, aBoolVal, aIntVal, aStrVal)) { - // The "pref" has changed; send a notification. - GetVariantPref(obsServ, value, nullptr, - jni::String::LocalRef(aPrefName)); - return; - } - } - - switch (aType) { - case java::PrefsHelper::PREF_BOOL: - Preferences::SetBool(name.get(), aBoolVal); - break; - case java::PrefsHelper::PREF_INT: - Preferences::SetInt(name.get(), aIntVal); - break; - case java::PrefsHelper::PREF_STRING: - Preferences::SetString(name.get(), aStrVal->ToString()); - break; - default: - MOZ_ASSERT(false, "Invalid pref type"); - } - - if (aFlush) { - Preferences::GetService()->SavePrefFile(nullptr); - } - } - - static void AddObserver(const jni::Class::LocalRef& aCls, - jni::ObjectArray::Param aPrefNames, - jni::Object::Param aPrefHandler, - jni::ObjectArray::Param aPrefsToObserve) - { - // Call observer immediately with existing pref values. - GetPrefs(aCls, aPrefNames, aPrefHandler); - - if (!aPrefsToObserve) { - return; - } - - nsTArray<jni::Object::LocalRef> nameRefArray( - aPrefsToObserve->GetElements()); - nsAppShell* const appShell = nsAppShell::Get(); - MOZ_ASSERT(appShell); - - for (jni::Object::LocalRef& nameRef : nameRefArray) { - jni::String::LocalRef nameStr(mozilla::Move(nameRef)); - MOZ_ALWAYS_SUCCEEDS(Preferences::AddStrongObserver( - appShell, nameStr->ToCString().get())); - } - } - - static void RemoveObserver(const jni::Class::LocalRef& aCls, - jni::ObjectArray::Param aPrefsToUnobserve) - { - nsTArray<jni::Object::LocalRef> nameRefArray( - aPrefsToUnobserve->GetElements()); - nsAppShell* const appShell = nsAppShell::Get(); - MOZ_ASSERT(appShell); - - for (jni::Object::LocalRef& nameRef : nameRefArray) { - jni::String::LocalRef nameStr(mozilla::Move(nameRef)); - MOZ_ALWAYS_SUCCEEDS(Preferences::RemoveObserver( - appShell, nameStr->ToCString().get())); - } - } - - static void OnPrefChange(const char16_t* aData) - { - const nsCString& name = NS_LossyConvertUTF16toASCII(aData); - - int32_t type = -1; - bool boolVal = false; - int32_t intVal = false; - nsAdoptingString strVal; - - switch (Preferences::GetType(name.get())) { - case nsIPrefBranch::PREF_BOOL: - type = java::PrefsHelper::PREF_BOOL; - boolVal = Preferences::GetBool(name.get()); - break; - case nsIPrefBranch::PREF_INT: - type = java::PrefsHelper::PREF_INT; - intVal = Preferences::GetInt(name.get()); - break; - case nsIPrefBranch::PREF_STRING: - type = java::PrefsHelper::PREF_STRING; - strVal = Preferences::GetLocalizedString(name.get()); - if (!strVal) { - strVal = Preferences::GetString(name.get()); - } - break; - default: - NS_WARNING(nsPrintfCString("Invalid pref %s", - name.get()).get()); - return; - } - - java::PrefsHelper::OnPrefChange( - name, type, boolVal, intVal, - jni::StringParam(type == java::PrefsHelper::PREF_STRING ? - jni::StringParam(strVal) : jni::StringParam(nullptr))); - } -}; - -} // namespace - -#endif // PrefsHelper_h |