/
SDLActivity.java
executable file
·1012 lines (857 loc) · 34.9 KB
/
SDLActivity.java
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package org.libsdl.app;
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import java.util.ArrayList;
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import java.util.Arrays;
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import android.app.*;
import android.content.*;
import android.view.*;
import android.view.inputmethod.BaseInputConnection;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import android.widget.AbsoluteLayout;
import android.os.*;
import android.util.Log;
import android.graphics.*;
import android.media.*;
import android.hardware.*;
/**
SDL Activity
*/
public class SDLActivity extends Activity {
private static final String TAG = "SDL";
// Keep track of the paused state
public static boolean mIsPaused = false, mIsSurfaceReady = false, mHasFocus = true;
// Main components
protected static SDLActivity mSingleton;
protected static SDLSurface mSurface;
protected static View mTextEdit;
protected static ViewGroup mLayout;
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protected static SDLJoystickHandler mJoystickHandler;
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// This is what SDL runs in. It invokes SDL_main(), eventually
protected static Thread mSDLThread;
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// Audio
protected static Thread mAudioThread;
protected static AudioTrack mAudioTrack;
// Load the .so
static {
System.loadLibrary("SDL2");
//System.loadLibrary("SDL2_image");
//System.loadLibrary("SDL2_mixer");
//System.loadLibrary("SDL2_net");
//System.loadLibrary("SDL2_ttf");
System.loadLibrary("main");
}
// Setup
@Override
protected void onCreate(Bundle savedInstanceState) {
//Log.v("SDL", "onCreate()");
super.onCreate(savedInstanceState);
// So we can call stuff from static callbacks
mSingleton = this;
// Set up the surface
mSurface = new SDLSurface(getApplication());
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if(Build.VERSION.SDK_INT >= 12) {
mJoystickHandler = new SDLJoystickHandler_API12();
}
else {
mJoystickHandler = new SDLJoystickHandler();
}
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mLayout = new AbsoluteLayout(this);
mLayout.addView(mSurface);
setContentView(mLayout);
}
// Events
@Override
protected void onPause() {
Log.v("SDL", "onPause()");
super.onPause();
SDLActivity.handlePause();
}
@Override
protected void onResume() {
Log.v("SDL", "onResume()");
super.onResume();
SDLActivity.handleResume();
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
Log.v("SDL", "onWindowFocusChanged(): " + hasFocus);
SDLActivity.mHasFocus = hasFocus;
if (hasFocus) {
SDLActivity.handleResume();
}
}
@Override
public void onLowMemory() {
Log.v("SDL", "onLowMemory()");
super.onLowMemory();
SDLActivity.nativeLowMemory();
}
@Override
protected void onDestroy() {
super.onDestroy();
Log.v("SDL", "onDestroy()");
// Send a quit message to the application
SDLActivity.nativeQuit();
// Now wait for the SDL thread to quit
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if (SDLActivity.mSDLThread != null) {
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try {
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SDLActivity.mSDLThread.join();
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} catch(Exception e) {
Log.v("SDL", "Problem stopping thread: " + e);
}
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SDLActivity.mSDLThread = null;
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//Log.v("SDL", "Finished waiting for SDL thread");
}
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
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// Ignore certain special keys so they're handled by Android
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if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ||
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keyCode == KeyEvent.KEYCODE_VOLUME_UP ||
keyCode == KeyEvent.KEYCODE_CAMERA ||
keyCode == 168 || /* API 11: KeyEvent.KEYCODE_ZOOM_IN */
keyCode == 169 /* API 11: KeyEvent.KEYCODE_ZOOM_OUT */
) {
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return false;
}
return super.dispatchKeyEvent(event);
}
/** Called by onPause or surfaceDestroyed. Even if surfaceDestroyed
* is the first to be called, mIsSurfaceReady should still be set
* to 'true' during the call to onPause (in a usual scenario).
*/
public static void handlePause() {
if (!SDLActivity.mIsPaused && SDLActivity.mIsSurfaceReady) {
SDLActivity.mIsPaused = true;
SDLActivity.nativePause();
mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, false);
}
}
/** Called by onResume or surfaceCreated. An actual resume should be done only when the surface is ready.
* Note: Some Android variants may send multiple surfaceChanged events, so we don't need to resume
* every time we get one of those events, only if it comes after surfaceDestroyed
*/
public static void handleResume() {
if (SDLActivity.mIsPaused && SDLActivity.mIsSurfaceReady && SDLActivity.mHasFocus) {
SDLActivity.mIsPaused = false;
SDLActivity.nativeResume();
mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, true);
}
}
// Messages from the SDLMain thread
static final int COMMAND_CHANGE_TITLE = 1;
static final int COMMAND_UNUSED = 2;
static final int COMMAND_TEXTEDIT_HIDE = 3;
protected static final int COMMAND_USER = 0x8000;
/**
* This method is called by SDL if SDL did not handle a message itself.
* This happens if a received message contains an unsupported command.
* Method can be overwritten to handle Messages in a different class.
* @param command the command of the message.
* @param param the parameter of the message. May be null.
* @return if the message was handled in overridden method.
*/
protected boolean onUnhandledMessage(int command, Object param) {
return false;
}
/**
* A Handler class for Messages from native SDL applications.
* It uses current Activities as target (e.g. for the title).
* static to prevent implicit references to enclosing object.
*/
protected static class SDLCommandHandler extends Handler {
@Override
public void handleMessage(Message msg) {
Context context = getContext();
if (context == null) {
Log.e(TAG, "error handling message, getContext() returned null");
return;
}
switch (msg.arg1) {
case COMMAND_CHANGE_TITLE:
if (context instanceof Activity) {
((Activity) context).setTitle((String)msg.obj);
} else {
Log.e(TAG, "error handling message, getContext() returned no Activity");
}
break;
case COMMAND_TEXTEDIT_HIDE:
if (mTextEdit != null) {
mTextEdit.setVisibility(View.GONE);
InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mTextEdit.getWindowToken(), 0);
}
break;
default:
if ((context instanceof SDLActivity) && !((SDLActivity) context).onUnhandledMessage(msg.arg1, msg.obj)) {
Log.e(TAG, "error handling message, command is " + msg.arg1);
}
}
}
}
// Handler for the messages
Handler commandHandler = new SDLCommandHandler();
// Send a message from the SDLMain thread
boolean sendCommand(int command, Object data) {
Message msg = commandHandler.obtainMessage();
msg.arg1 = command;
msg.obj = data;
return commandHandler.sendMessage(msg);
}
// C functions we call
public static native void nativeInit();
public static native void nativeLowMemory();
public static native void nativeQuit();
public static native void nativePause();
public static native void nativeResume();
public static native void onNativeResize(int x, int y, int format);
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public static native int onNativePadDown(int padId, int keycode);
public static native int onNativePadUp(int padId, int keycode);
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public static native void onNativeJoy(int joyId, int axis,
float value);
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public static native void onNativeKeyDown(int keycode);
public static native void onNativeKeyUp(int keycode);
public static native void onNativeKeyboardFocusLost();
public static native void onNativeTouch(int touchDevId, int pointerFingerId,
int action, float x,
float y, float p);
public static native void onNativeAccel(float x, float y, float z);
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public static native void onNativeSurfaceChanged();
public static native void onNativeSurfaceDestroyed();
public static native void nativeFlipBuffers();
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public static void flipBuffers() {
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SDLActivity.nativeFlipBuffers();
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}
public static boolean setActivityTitle(String title) {
// Called from SDLMain() thread and can't directly affect the view
return mSingleton.sendCommand(COMMAND_CHANGE_TITLE, title);
}
public static boolean sendMessage(int command, int param) {
return mSingleton.sendCommand(command, Integer.valueOf(param));
}
public static Context getContext() {
return mSingleton;
}
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/**
* @return result of getSystemService(name) but executed on UI thread.
*/
public Object getSystemServiceFromUiThread(final String name) {
final Object lock = new Object();
final Object[] results = new Object[2]; // array for writable variables
synchronized (lock) {
runOnUiThread(new Runnable() {
@Override
public void run() {
synchronized (lock) {
results[0] = getSystemService(name);
results[1] = Boolean.TRUE;
lock.notify();
}
}
});
if (results[1] == null) {
try {
lock.wait();
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
}
return results[0];
}
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static class ShowTextInputTask implements Runnable {
/*
* This is used to regulate the pan&scan method to have some offset from
* the bottom edge of the input region and the top edge of an input
* method (soft keyboard)
*/
static final int HEIGHT_PADDING = 15;
public int x, y, w, h;
public ShowTextInputTask(int x, int y, int w, int h) {
this.x = x;
this.y = y;
this.w = w;
this.h = h;
}
@Override
public void run() {
AbsoluteLayout.LayoutParams params = new AbsoluteLayout.LayoutParams(
w, h + HEIGHT_PADDING, x, y);
if (mTextEdit == null) {
mTextEdit = new DummyEdit(getContext());
mLayout.addView(mTextEdit, params);
} else {
mTextEdit.setLayoutParams(params);
}
mTextEdit.setVisibility(View.VISIBLE);
mTextEdit.requestFocus();
InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mTextEdit, 0);
}
}
public static boolean showTextInput(int x, int y, int w, int h) {
// Transfer the task to the main thread as a Runnable
return mSingleton.commandHandler.post(new ShowTextInputTask(x, y, w, h));
}
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public static Surface getNativeSurface() {
return SDLActivity.mSurface.getNativeSurface();
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}
// Audio
public static int audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
int channelConfig = isStereo ? AudioFormat.CHANNEL_CONFIGURATION_STEREO : AudioFormat.CHANNEL_CONFIGURATION_MONO;
int audioFormat = is16Bit ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT;
int frameSize = (isStereo ? 2 : 1) * (is16Bit ? 2 : 1);
Log.v("SDL", "SDL audio: wanted " + (isStereo ? "stereo" : "mono") + " " + (is16Bit ? "16-bit" : "8-bit") + " " + (sampleRate / 1000f) + "kHz, " + desiredFrames + " frames buffer");
// Let the user pick a larger buffer if they really want -- but ye
// gods they probably shouldn't, the minimums are horrifyingly high
// latency already
desiredFrames = Math.max(desiredFrames, (AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat) + frameSize - 1) / frameSize);
if (mAudioTrack == null) {
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate,
channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
// Instantiating AudioTrack can "succeed" without an exception and the track may still be invalid
// Ref: https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/media/java/android/media/AudioTrack.java
// Ref: http://developer.android.com/reference/android/media/AudioTrack.html#getState()
if (mAudioTrack.getState() != AudioTrack.STATE_INITIALIZED) {
Log.e("SDL", "Failed during initialization of Audio Track");
mAudioTrack = null;
return -1;
}
mAudioTrack.play();
}
Log.v("SDL", "SDL audio: got " + ((mAudioTrack.getChannelCount() >= 2) ? "stereo" : "mono") + " " + ((mAudioTrack.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) ? "16-bit" : "8-bit") + " " + (mAudioTrack.getSampleRate() / 1000f) + "kHz, " + desiredFrames + " frames buffer");
return 0;
}
public static void audioWriteShortBuffer(short[] buffer) {
for (int i = 0; i < buffer.length; ) {
int result = mAudioTrack.write(buffer, i, buffer.length - i);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w("SDL", "SDL audio: error return from write(short)");
return;
}
}
}
public static void audioWriteByteBuffer(byte[] buffer) {
for (int i = 0; i < buffer.length; ) {
int result = mAudioTrack.write(buffer, i, buffer.length - i);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w("SDL", "SDL audio: error return from write(byte)");
return;
}
}
}
public static void audioQuit() {
if (mAudioTrack != null) {
mAudioTrack.stop();
mAudioTrack = null;
}
}
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// Input
/**
* @return an array which may be empty but is never null.
*/
public static int[] inputGetInputDeviceIds(int sources) {
int[] ids = InputDevice.getDeviceIds();
int[] filtered = new int[ids.length];
int used = 0;
for (int i = 0; i < ids.length; ++i) {
InputDevice device = InputDevice.getDevice(ids[i]);
if ((device != null) && ((device.getSources() & sources) != 0)) {
filtered[used++] = device.getId();
}
}
return Arrays.copyOf(filtered, used);
}
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// Joystick glue code, just a series of stubs that redirect to the SDLJoystickHandler instance
public static int getNumJoysticks() {
return mJoystickHandler.getNumJoysticks();
}
public static String getJoystickName(int joy) {
return mJoystickHandler.getJoystickName(joy);
}
public static int getJoystickAxes(int joy) {
return mJoystickHandler.getJoystickAxes(joy);
}
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public static boolean handleJoystickMotionEvent(MotionEvent event) {
return mJoystickHandler.handleMotionEvent(event);
}
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/**
* @param devId the device id to get opened joystick id for.
* @return joystick id for device id or -1 if there is none.
*/
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public static int getJoyId(int devId) {
return mJoystickHandler.getJoyId(devId);
}
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}
/**
Simple nativeInit() runnable
*/
class SDLMain implements Runnable {
@Override
public void run() {
// Runs SDL_main()
SDLActivity.nativeInit();
//Log.v("SDL", "SDL thread terminated");
}
}
/**
SDLSurface. This is what we draw on, so we need to know when it's created
in order to do anything useful.
Because of this, that's where we set up the SDL thread
*/
class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
View.OnKeyListener, View.OnTouchListener, SensorEventListener {
// Sensors
protected static SensorManager mSensorManager;
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protected static Display mDisplay;
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// Keep track of the surface size to normalize touch events
protected static float mWidth, mHeight;
// Startup
public SDLSurface(Context context) {
super(context);
getHolder().addCallback(this);
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
setOnKeyListener(this);
setOnTouchListener(this);
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mDisplay = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
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mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
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if(Build.VERSION.SDK_INT >= 12) {
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setOnGenericMotionListener(new SDLGenericMotionListener_API12());
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}
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// Some arbitrary defaults to avoid a potential division by zero
mWidth = 1.0f;
mHeight = 1.0f;
}
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public Surface getNativeSurface() {
return getHolder().getSurface();
}
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// Called when we have a valid drawing surface
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.v("SDL", "surfaceCreated()");
holder.setType(SurfaceHolder.SURFACE_TYPE_GPU);
}
// Called when we lose the surface
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.v("SDL", "surfaceDestroyed()");
// Call this *before* setting mIsSurfaceReady to 'false'
SDLActivity.handlePause();
SDLActivity.mIsSurfaceReady = false;
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SDLActivity.onNativeSurfaceDestroyed();
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}
// Called when the surface is resized
@Override
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height) {
Log.v("SDL", "surfaceChanged()");
int sdlFormat = 0x15151002; // SDL_PIXELFORMAT_RGB565 by default
switch (format) {
case PixelFormat.A_8:
Log.v("SDL", "pixel format A_8");
break;
case PixelFormat.LA_88:
Log.v("SDL", "pixel format LA_88");
break;
case PixelFormat.L_8:
Log.v("SDL", "pixel format L_8");
break;
case PixelFormat.RGBA_4444:
Log.v("SDL", "pixel format RGBA_4444");
sdlFormat = 0x15421002; // SDL_PIXELFORMAT_RGBA4444
break;
case PixelFormat.RGBA_5551:
Log.v("SDL", "pixel format RGBA_5551");
sdlFormat = 0x15441002; // SDL_PIXELFORMAT_RGBA5551
break;
case PixelFormat.RGBA_8888:
Log.v("SDL", "pixel format RGBA_8888");
sdlFormat = 0x16462004; // SDL_PIXELFORMAT_RGBA8888
break;
case PixelFormat.RGBX_8888:
Log.v("SDL", "pixel format RGBX_8888");
sdlFormat = 0x16261804; // SDL_PIXELFORMAT_RGBX8888
break;
case PixelFormat.RGB_332:
Log.v("SDL", "pixel format RGB_332");
sdlFormat = 0x14110801; // SDL_PIXELFORMAT_RGB332
break;
case PixelFormat.RGB_565:
Log.v("SDL", "pixel format RGB_565");
sdlFormat = 0x15151002; // SDL_PIXELFORMAT_RGB565
break;
case PixelFormat.RGB_888:
Log.v("SDL", "pixel format RGB_888");
// Not sure this is right, maybe SDL_PIXELFORMAT_RGB24 instead?
sdlFormat = 0x16161804; // SDL_PIXELFORMAT_RGB888
break;
default:
Log.v("SDL", "pixel format unknown " + format);
break;
}
mWidth = width;
mHeight = height;
SDLActivity.onNativeResize(width, height, sdlFormat);
Log.v("SDL", "Window size:" + width + "x"+height);
// Set mIsSurfaceReady to 'true' *before* making a call to handleResume
SDLActivity.mIsSurfaceReady = true;
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SDLActivity.onNativeSurfaceChanged();
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if (SDLActivity.mSDLThread == null) {
// This is the entry point to the C app.
// Start up the C app thread and enable sensor input for the first time
SDLActivity.mSDLThread = new Thread(new SDLMain(), "SDLThread");
enableSensor(Sensor.TYPE_ACCELEROMETER, true);
SDLActivity.mSDLThread.start();
}
}
// unused
@Override
public void onDraw(Canvas canvas) {}
// Key events
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
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// Dispatch the different events depending on where they come from
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// Some SOURCE_DPAD or SOURCE_GAMEPAD are also SOURCE_KEYBOARD
// So, we try to process them as DPAD or GAMEPAD events first, if that fails we try them as KEYBOARD
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if ( (event.getSource() & 0x00000401) != 0 || /* API 12: SOURCE_GAMEPAD */
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(event.getSource() & InputDevice.SOURCE_DPAD) != 0 ) {
int id = SDLActivity.getJoyId( event.getDeviceId() );
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if (id != -1) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
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if (SDLActivity.onNativePadDown(id, keyCode) == 0) {
return true;
}
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} else if (event.getAction() == KeyEvent.ACTION_UP) {
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if (SDLActivity.onNativePadUp(id, keyCode) == 0) {
return true;
}
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}
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}
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}
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if( (event.getSource() & InputDevice.SOURCE_KEYBOARD) != 0) {
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if (event.getAction() == KeyEvent.ACTION_DOWN) {
//Log.v("SDL", "key down: " + keyCode);
SDLActivity.onNativeKeyDown(keyCode);
return true;
}
else if (event.getAction() == KeyEvent.ACTION_UP) {
//Log.v("SDL", "key up: " + keyCode);
SDLActivity.onNativeKeyUp(keyCode);
return true;
}
}
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return false;
}
// Touch events
@Override
public boolean onTouch(View v, MotionEvent event) {
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/* Ref: http://developer.android.com/training/gestures/multi.html */
final int touchDevId = event.getDeviceId();
final int pointerCount = event.getPointerCount();
int action = event.getActionMasked();
int pointerFingerId;
int i = -1;
float x,y,p;
switch(action) {
case MotionEvent.ACTION_MOVE:
for (i = 0; i < pointerCount; i++) {
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pointerFingerId = event.getPointerId(i);
x = event.getX(i) / mWidth;
y = event.getY(i) / mHeight;
p = event.getPressure(i);
SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
}
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break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_DOWN:
// Primary pointer up/down, the index is always zero
i = 0;
case MotionEvent.ACTION_POINTER_UP:
case MotionEvent.ACTION_POINTER_DOWN:
// Non primary pointer up/down
if (i == -1) {
i = event.getActionIndex();
}
pointerFingerId = event.getPointerId(i);
x = event.getX(i) / mWidth;
y = event.getY(i) / mHeight;
p = event.getPressure(i);
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SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
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break;
default:
break;
}
return true;
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}
// Sensor events
public void enableSensor(int sensortype, boolean enabled) {
// TODO: This uses getDefaultSensor - what if we have >1 accels?
if (enabled) {
mSensorManager.registerListener(this,
mSensorManager.getDefaultSensor(sensortype),
SensorManager.SENSOR_DELAY_GAME, null);
} else {
mSensorManager.unregisterListener(this,
mSensorManager.getDefaultSensor(sensortype));
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
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float x, y;
switch (mDisplay.getRotation()) {
case Surface.ROTATION_90:
x = -event.values[1];
y = event.values[0];
break;
case Surface.ROTATION_270:
x = event.values[1];
y = -event.values[0];
break;
case Surface.ROTATION_180:
x = -event.values[1];
y = -event.values[0];
break;
default:
x = event.values[0];
y = event.values[1];
break;
}
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SDLActivity.onNativeAccel(-x / SensorManager.GRAVITY_EARTH,
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y / SensorManager.GRAVITY_EARTH,
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event.values[2] / SensorManager.GRAVITY_EARTH - 1);
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}
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}
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}
/* This is a fake invisible editor view that receives the input and defines the
* pan&scan region
*/
class DummyEdit extends View implements View.OnKeyListener {
InputConnection ic;
public DummyEdit(Context context) {
super(context);
setFocusableInTouchMode(true);
setFocusable(true);
setOnKeyListener(this);
}
@Override
public boolean onCheckIsTextEditor() {
return true;
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
// This handles the hardware keyboard input
if (event.isPrintingKey()) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
ic.commitText(String.valueOf((char) event.getUnicodeChar()), 1);
}
return true;
}
if (event.getAction() == KeyEvent.ACTION_DOWN) {
SDLActivity.onNativeKeyDown(keyCode);
return true;
} else if (event.getAction() == KeyEvent.ACTION_UP) {
SDLActivity.onNativeKeyUp(keyCode);
return true;
}
return false;
}
//
@Override
public boolean onKeyPreIme (int keyCode, KeyEvent event) {
// As seen on StackOverflow: http://stackoverflow.com/questions/7634346/keyboard-hide-event
// FIXME: Discussion at http://bugzilla.libsdl.org/show_bug.cgi?id=1639
// FIXME: This is not a 100% effective solution to the problem of detecting if the keyboard is showing or not
// FIXME: A more effective solution would be to change our Layout from AbsoluteLayout to Relative or Linear
// FIXME: And determine the keyboard presence doing this: http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android
// FIXME: An even more effective way would be if Android provided this out of the box, but where would the fun be in that :)
if (event.getAction()==KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
if (SDLActivity.mTextEdit != null && SDLActivity.mTextEdit.getVisibility() == View.VISIBLE) {
SDLActivity.onNativeKeyboardFocusLost();
}
}
return super.onKeyPreIme(keyCode, event);
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
ic = new SDLInputConnection(this, true);
outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
| 33554432 /* API 11: EditorInfo.IME_FLAG_NO_FULLSCREEN */;
return ic;
}
}
class SDLInputConnection extends BaseInputConnection {
public SDLInputConnection(View targetView, boolean fullEditor) {
super(targetView, fullEditor);
}
@Override
public boolean sendKeyEvent(KeyEvent event) {
/*
* This handles the keycodes from soft keyboard (and IME-translated
* input from hardkeyboard)
*/
int keyCode = event.getKeyCode();
if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (event.isPrintingKey()) {
commitText(String.valueOf((char) event.getUnicodeChar()), 1);
}
SDLActivity.onNativeKeyDown(keyCode);
return true;
} else if (event.getAction() == KeyEvent.ACTION_UP) {
SDLActivity.onNativeKeyUp(keyCode);
return true;
}
return super.sendKeyEvent(event);
}
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
nativeCommitText(text.toString(), newCursorPosition);
return super.commitText(text, newCursorPosition);
}
@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
nativeSetComposingText(text.toString(), newCursorPosition);
return super.setComposingText(text, newCursorPosition);
}
public native void nativeCommitText(String text, int newCursorPosition);
public native void nativeSetComposingText(String text, int newCursorPosition);
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@Override
public boolean deleteSurroundingText(int beforeLength, int afterLength) {
// Workaround to capture backspace key. Ref: http://stackoverflow.com/questions/14560344/android-backspace-in-webview-baseinputconnection
if (beforeLength == 1 && afterLength == 0) {
// backspace
return super.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL))
&& super.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DEL));
}
return super.deleteSurroundingText(beforeLength, afterLength);
}
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}
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/* A null joystick handler for API level < 12 devices (the accelerometer is handled separately) */
class SDLJoystickHandler {
public int getNumJoysticks() {
return 0;
}
public String getJoystickName(int joy) {
return "";
}
public int getJoystickAxes(int joy) {
return 0;
}
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/**
* @param devId the device id to get opened joystick id for.
* @return joystick id for device id or -1 if there is none.
*/
908
public int getJoyId(int devId) {
909
return -1;
910
}
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public boolean handleMotionEvent(MotionEvent event) {
return false;
}
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}
/* Actual joystick functionality available for API >= 12 devices */
class SDLJoystickHandler_API12 extends SDLJoystickHandler {
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class SDLJoystick {
public int id;
public String name;
public ArrayList<InputDevice.MotionRange> axes;
}
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private ArrayList<SDLJoystick> mJoysticks;
public SDLJoystickHandler_API12() {
/* FIXME: Move the joystick initialization code to its own function and support hotplugging of devices */
mJoysticks = new ArrayList<SDLJoystick>();
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int[] deviceIds = InputDevice.getDeviceIds();
for(int i=0; i<deviceIds.length; i++) {
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SDLJoystick joystick = new SDLJoystick();
InputDevice joystickDevice = InputDevice.getDevice(deviceIds[i]);
if( (joystickDevice.getSources() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
joystick.id = deviceIds[i];
joystick.name = joystickDevice.getName();
joystick.axes = new ArrayList<InputDevice.MotionRange>();
for (InputDevice.MotionRange range : joystickDevice.getMotionRanges()) {
if ( (range.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
joystick.axes.add(range);
}
}
mJoysticks.add(joystick);
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}
}
}
954
@Override
955
public int getNumJoysticks() {
956
return mJoysticks.size();
957
958
}
959
@Override
960
public String getJoystickName(int joy) {
961
return mJoysticks.get(joy).name;
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963
}
964
@Override
965
public int getJoystickAxes(int joy) {
966
return mJoysticks.get(joy).axes.size();
967
968
}
969
@Override
970
public int getJoyId(int devId) {
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for(int i=0; i < mJoysticks.size(); i++) {
if (mJoysticks.get(i).id == devId) {
return i;
}
}
return -1;
}
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@Override
public boolean handleMotionEvent(MotionEvent event) {
981
if ( (event.getSource() & InputDevice.SOURCE_JOYSTICK) != 0) {
982
983
int actionPointerIndex = event.getActionIndex();
int action = event.getActionMasked();
984
985
switch(action) {
case MotionEvent.ACTION_MOVE:
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994
int id = getJoyId( event.getDeviceId() );
if ( id != -1 ) {
SDLJoystick joystick = mJoysticks.get(id);
for (int i = 0; i < joystick.axes.size(); i++) {
InputDevice.MotionRange range = joystick.axes.get(i);
/* Normalize the value to -1...1 */
float value = ( event.getAxisValue( range.getAxis(), actionPointerIndex) - range.getMin() ) / range.getRange() * 2.0f - 1.0f;
SDLActivity.onNativeJoy(id, i, value );
}
995
}
996
break;
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998
default:
break;
999
1000
}
}