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Bug 1200343 - Implment PrefsHelper native calls; r=snorp

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This patch implements the PrefsHelper native calls for getting prefs;
This commit is contained in:
Jim Chen 2015-09-25 15:03:35 -04:00
parent b0bd9828c5
commit cc4a1b8406
2 changed files with 80 additions and 0 deletions
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78
widget/android/PrefsHelper.h Normal file
View File

@ -0,0 +1,78 @@
/* -*- 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 "mozilla/UniquePtr.h"
namespace mozilla {
struct PrefsHelper
: widget::PrefsHelper::Natives<PrefsHelper>
, UsesGeckoThreadProxy
{
PrefsHelper() = delete;
static void GetPrefsById(const jni::ClassObject::LocalRef& cls,
int32_t requestId,
jni::ObjectArray::Param prefNames,
bool observe)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(nsAppShell::gAppShell);
nsTArray<jni::Object::LocalRef> namesRefArray(prefNames.GetElements());
const size_t len = namesRefArray.Length();
// Java strings are not null-terminated, but XPCOM expects
// null-terminated strings, so we copy the strings to nsString to
// ensure null-termination.
nsTArray<nsString> namesStrArray;
nsTArray<const char16_t*> namesPtrArray;
for (size_t i = 0; i < len; i++) {
if (!namesRefArray[i]) {
namesPtrArray.AppendElement(nullptr);
continue;
}
namesPtrArray.AppendElement(namesStrArray.AppendElement(
nsString(jni::String::LocalRef(
mozilla::Move(namesRefArray[i]))))->Data());
}
nsIAndroidBrowserApp* browserApp = nullptr;
nsAppShell::gAppShell->GetBrowserApp(&browserApp);
MOZ_ASSERT(browserApp);
if (observe) {
browserApp->ObservePreferences(
requestId, len ? &namesPtrArray[0] : nullptr, len);
} else {
browserApp->GetPreferences(
requestId, len ? &namesPtrArray[0] : nullptr, len);
}
}
static void RemovePrefsObserver(int32_t requestId)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(nsAppShell::gAppShell);
nsIAndroidBrowserApp* browserApp = nullptr;
nsAppShell::gAppShell->GetBrowserApp(&browserApp);
MOZ_ASSERT(browserApp);
browserApp->RemovePreferenceObservers(requestId);
}
};
} // namespace
#endif // PrefsHelper_h

2
widget/android/nsAppShell.cpp
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@ -60,6 +60,7 @@
#endif
#include "ANRReporter.h"
#include "PrefsHelper.h"
#ifdef DEBUG_ANDROID_EVENTS
#define EVLOG(args...) ALOG(args)
@ -196,6 +197,7 @@ nsAppShell::nsAppShell()
AndroidBridge::ConstructBridge();
GeckoThreadNatives::Init();
mozilla::ANRReporter::Init();
mozilla::PrefsHelper::Init();
nsWindow::InitNatives();
widget::GeckoThread::SetState(widget::GeckoThread::State::JNI_READY());