gecko-dev/widget/android/AndroidBridge.h

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/* -*- 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 AndroidBridge_h__
#define AndroidBridge_h__
#include <jni.h>
#include <android/log.h>
#include <cstdlib>
#include <unistd.h>
#include "APKOpen.h"
#include "nsCOMPtr.h"
#include "nsCOMArray.h"
#include "GeneratedJNIWrappers.h"
#include "nsIMutableArray.h"
#include "nsIMIMEInfo.h"
#include "nsColor.h"
#include "gfxRect.h"
#include "nsIAndroidBridge.h"
#include "nsIDOMDOMCursor.h"
#include "mozilla/Likely.h"
#include "mozilla/Mutex.h"
#include "mozilla/Types.h"
#include "mozilla/gfx/Point.h"
#include "mozilla/jni/Utils.h"
#include "nsIObserver.h"
#include "nsDataHashtable.h"
#include "Units.h"
// Some debug #defines
// #define DEBUG_ANDROID_EVENTS
// #define DEBUG_ANDROID_WIDGET
class nsPIDOMWindowOuter;
typedef void* EGLSurface;
class nsIRunnable;
namespace mozilla {
class AutoLocalJNIFrame;
namespace hal {
class BatteryInformation;
class NetworkInformation;
} // namespace hal
// The order and number of the members in this structure must correspond
// to the attrsAppearance array in GeckoAppShell.getSystemColors()
typedef struct AndroidSystemColors {
nscolor textColorPrimary;
nscolor textColorPrimaryInverse;
nscolor textColorSecondary;
nscolor textColorSecondaryInverse;
nscolor textColorTertiary;
nscolor textColorTertiaryInverse;
nscolor textColorHighlight;
nscolor colorForeground;
nscolor colorBackground;
nscolor panelColorForeground;
nscolor panelColorBackground;
} AndroidSystemColors;
class MessageCursorContinueCallback : public nsICursorContinueCallback
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSICURSORCONTINUECALLBACK
MessageCursorContinueCallback(int aRequestId)
: mRequestId(aRequestId)
{
}
private:
virtual ~MessageCursorContinueCallback()
{
}
int mRequestId;
};
class AndroidBridge final
{
public:
enum {
// Values for NotifyIME, in addition to values from the Gecko
// IMEMessage enum; use negative values here to prevent conflict
NOTIFY_IME_OPEN_VKB = -2,
NOTIFY_IME_REPLY_EVENT = -1,
};
enum {
LAYER_CLIENT_TYPE_NONE = 0,
LAYER_CLIENT_TYPE_GL = 2 // AndroidGeckoGLLayerClient
};
static bool IsJavaUiThread() {
return mozilla::jni::GetUIThreadId() == gettid();
}
static void ConstructBridge();
static void DeconstructBridge();
static AndroidBridge *Bridge() {
return sBridge;
}
void ContentDocumentChanged(mozIDOMWindowProxy* aDOMWindow);
bool IsContentDocumentDisplayed(mozIDOMWindowProxy* aDOMWindow);
bool GetHandlersForURL(const nsAString& aURL,
nsIMutableArray* handlersArray = nullptr,
nsIHandlerApp **aDefaultApp = nullptr,
const nsAString& aAction = EmptyString());
bool GetHandlersForMimeType(const nsAString& aMimeType,
nsIMutableArray* handlersArray = nullptr,
nsIHandlerApp **aDefaultApp = nullptr,
const nsAString& aAction = EmptyString());
bool GetHWEncoderCapability();
bool GetHWDecoderCapability();
void GetMimeTypeFromExtensions(const nsACString& aFileExt, nsCString& aMimeType);
void GetExtensionFromMimeType(const nsACString& aMimeType, nsACString& aFileExt);
bool GetClipboardText(nsAString& aText);
int GetDPI();
int GetScreenDepth();
void Vibrate(const nsTArray<uint32_t>& aPattern);
void GetSystemColors(AndroidSystemColors *aColors);
void GetIconForExtension(const nsACString& aFileExt, uint32_t aIconSize, uint8_t * const aBuf);
bool GetStaticStringField(const char *classID, const char *field, nsAString &result, JNIEnv* env = nullptr);
bool GetStaticIntField(const char *className, const char *fieldName, int32_t* aInt, JNIEnv* env = nullptr);
// Returns a global reference to the Context for Fennec's Activity. The
// caller is responsible for ensuring this doesn't leak by calling
// DeleteGlobalRef() when the context is no longer needed.
jobject GetGlobalContextRef(void);
void GetCurrentBatteryInformation(hal::BatteryInformation* aBatteryInfo);
void GetCurrentNetworkInformation(hal::NetworkInformation* aNetworkInfo);
// These methods don't use a ScreenOrientation because it's an
// enum and that would require including the header which requires
// include IPC headers which requires including basictypes.h which
// requires a lot of changes...
uint32_t GetScreenOrientation();
uint16_t GetScreenAngle();
int GetAPIVersion() { return mAPIVersion; }
nsresult GetProxyForURI(const nsACString & aSpec,
const nsACString & aScheme,
const nsACString & aHost,
const int32_t aPort,
nsACString & aResult);
bool PumpMessageLoop();
// Utility methods.
static jfieldID GetFieldID(JNIEnv* env, jclass jClass, const char* fieldName, const char* fieldType);
static jfieldID GetStaticFieldID(JNIEnv* env, jclass jClass, const char* fieldName, const char* fieldType);
static jmethodID GetMethodID(JNIEnv* env, jclass jClass, const char* methodName, const char* methodType);
static jmethodID GetStaticMethodID(JNIEnv* env, jclass jClass, const char* methodName, const char* methodType);
static jni::Object::LocalRef ChannelCreate(jni::Object::Param);
static void InputStreamClose(jni::Object::Param obj);
static uint32_t InputStreamAvailable(jni::Object::Param obj);
static nsresult InputStreamRead(jni::Object::Param obj, char *aBuf, uint32_t aCount, uint32_t *aRead);
protected:
static nsDataHashtable<nsStringHashKey, nsString> sStoragePaths;
static AndroidBridge* sBridge;
AndroidBridge();
~AndroidBridge();
int mAPIVersion;
// intput stream
jclass jReadableByteChannel;
jclass jChannels;
jmethodID jChannelCreate;
jmethodID jByteBufferRead;
jclass jInputStream;
jmethodID jClose;
jmethodID jAvailable;
jmethodID jCalculateLength;
// some convinient types to have around
jclass jStringClass;
jni::Object::GlobalRef mMessageQueue;
jfieldID mMessageQueueMessages;
jmethodID mMessageQueueNext;
};
class AutoJNIClass {
private:
JNIEnv* const mEnv;
const jclass mClass;
public:
AutoJNIClass(JNIEnv* jEnv, const char* name)
: mEnv(jEnv)
, mClass(jni::GetClassRef(jEnv, name))
{}
~AutoJNIClass() {
mEnv->DeleteLocalRef(mClass);
}
jclass getRawRef() const {
return mClass;
}
jclass getGlobalRef() const {
return static_cast<jclass>(mEnv->NewGlobalRef(mClass));
}
jfieldID getField(const char* name, const char* type) const {
return AndroidBridge::GetFieldID(mEnv, mClass, name, type);
}
jfieldID getStaticField(const char* name, const char* type) const {
return AndroidBridge::GetStaticFieldID(mEnv, mClass, name, type);
}
jmethodID getMethod(const char* name, const char* type) const {
return AndroidBridge::GetMethodID(mEnv, mClass, name, type);
}
jmethodID getStaticMethod(const char* name, const char* type) const {
return AndroidBridge::GetStaticMethodID(mEnv, mClass, name, type);
}
};
class AutoJObject {
public:
AutoJObject(JNIEnv* aJNIEnv = nullptr) : mObject(nullptr)
{
mJNIEnv = aJNIEnv ? aJNIEnv : jni::GetGeckoThreadEnv();
}
AutoJObject(JNIEnv* aJNIEnv, jobject aObject)
{
mJNIEnv = aJNIEnv ? aJNIEnv : jni::GetGeckoThreadEnv();
mObject = aObject;
}
~AutoJObject() {
if (mObject)
mJNIEnv->DeleteLocalRef(mObject);
}
jobject operator=(jobject aObject)
{
if (mObject) {
mJNIEnv->DeleteLocalRef(mObject);
}
return mObject = aObject;
}
operator jobject() {
return mObject;
}
private:
JNIEnv* mJNIEnv;
jobject mObject;
};
class AutoLocalJNIFrame {
public:
AutoLocalJNIFrame(int nEntries = 15)
: mEntries(nEntries)
, mJNIEnv(jni::GetGeckoThreadEnv())
, mHasFrameBeenPushed(false)
{
MOZ_ASSERT(mJNIEnv);
Push();
}
AutoLocalJNIFrame(JNIEnv* aJNIEnv, int nEntries = 15)
: mEntries(nEntries)
, mJNIEnv(aJNIEnv ? aJNIEnv : jni::GetGeckoThreadEnv())
, mHasFrameBeenPushed(false)
{
MOZ_ASSERT(mJNIEnv);
Push();
}
~AutoLocalJNIFrame() {
if (mHasFrameBeenPushed) {
Pop();
}
}
JNIEnv* GetEnv() {
return mJNIEnv;
}
bool CheckForException() {
if (mJNIEnv->ExceptionCheck()) {
MOZ_CATCH_JNI_EXCEPTION(mJNIEnv);
return true;
}
return false;
}
// Note! Calling Purge makes all previous local refs created in
// the AutoLocalJNIFrame's scope INVALID; be sure that you locked down
// any local refs that you need to keep around in global refs!
void Purge() {
Pop();
Push();
}
template <typename ReturnType = jobject>
ReturnType Pop(ReturnType aResult = nullptr) {
MOZ_ASSERT(mHasFrameBeenPushed);
mHasFrameBeenPushed = false;
return static_cast<ReturnType>(
mJNIEnv->PopLocalFrame(static_cast<jobject>(aResult)));
}
private:
void Push() {
MOZ_ASSERT(!mHasFrameBeenPushed);
// Make sure there is enough space to store a local ref to the
// exception. I am not completely sure this is needed, but does
// not hurt.
if (mJNIEnv->PushLocalFrame(mEntries + 1) != 0) {
CheckForException();
return;
}
mHasFrameBeenPushed = true;
}
const int mEntries;
JNIEnv* const mJNIEnv;
bool mHasFrameBeenPushed;
};
}
#define NS_ANDROIDBRIDGE_CID \
{ 0x0FE2321D, 0xEBD9, 0x467D, \
{ 0xA7, 0x43, 0x03, 0xA6, 0x8D, 0x40, 0x59, 0x9E } }
class nsAndroidBridge final : public nsIAndroidBridge,
public nsIObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIANDROIDBRIDGE
NS_DECL_NSIOBSERVER
NS_FORWARD_SAFE_NSIANDROIDEVENTDISPATCHER(mEventDispatcher)
nsAndroidBridge();
private:
~nsAndroidBridge();
void AddObservers();
void RemoveObservers();
void UpdateAudioPlayingWindows(bool aPlaying);
int32_t mAudibleWindowsNum;
nsCOMPtr<nsIAndroidEventDispatcher> mEventDispatcher;
protected:
};
#endif /* AndroidBridge_h__ */