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package com.anysoftkeyboard.keyboards.views;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.os.AsyncTaskCompat;
import android.support.v7.graphics.Palette;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.MotionEvent;
import com.anysoftkeyboard.keyboards.AnyKeyboard;
import com.anysoftkeyboard.keyboards.Keyboard;
import com.anysoftkeyboard.theme.KeyboardTheme;
import com.menny.android.anysoftkeyboard.R;
import java.lang.ref.WeakReference;
/**
* Will render the keyboard view but will not provide ANY interactivity.
*/
public class DemoAnyKeyboardView extends AnyKeyboardView {
private TypingSimulator mTypingSimulator;
private AsyncTask<Bitmap, Void, Palette.Swatch> mPaletteTask;
public DemoAnyKeyboardView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public DemoAnyKeyboardView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
//adding the padding of the main-ui
final int extraUiPadding = (2 * getResources().getDimensionPixelOffset(R.dimen.global_content_padding_side));
final int extraMarginFromParentBackground = (2 * getResources().getDimensionPixelOffset(R.dimen.keyboard_demo_shadow_padding));
mKeyboardDimens.setKeyboardMaxWidth(mKeyboardDimens.getKeyboardMaxWidth() - extraUiPadding - extraMarginFromParentBackground);
mTypingSimulator = new TypingSimulator(this);
}
@Override
public boolean onTouchEvent(@NonNull MotionEvent me) {
//not handling ANY touch event.
return false;
}
private void simulateKeyTouchEvent(char keyChar, boolean isDownEvent) {
final AnyKeyboard keyboard = getKeyboard();
if (keyboard == null) return;
for (Keyboard.Key key : keyboard.getKeys()) {
if (key.getPrimaryCode() == keyChar) {
final long eventTime = SystemClock.uptimeMillis();
final long downEventTime = eventTime - (isDownEvent? 0 : TypingSimulator.KEY_DOWN_DELAY);
MotionEvent motionEvent = MotionEvent.obtain(downEventTime, eventTime,
isDownEvent? MotionEvent.ACTION_DOWN : MotionEvent.ACTION_UP,
key.x+key.width/2, key.y + key.height/2, 0);
super.onTouchEvent(motionEvent);
}
}
}
public void startPaletteTask(AsyncTask<Bitmap, Void, Palette.Swatch> paletteTask) {
mPaletteTask = paletteTask;
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (changed && mPaletteTask != null && getWidth() > 0 && getHeight() > 0) {
final Bitmap bitmap = generateBitmapFromView();
if (bitmap != null) {
AsyncTaskCompat.executeParallel(mPaletteTask, bitmap);
mPaletteTask = null;
}
}
}
@Nullable
private Bitmap generateBitmapFromView() {
Bitmap b = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
draw(c);
return b;
}
public void resetKeyboardTheme(@NonNull KeyboardTheme theme) {
//it was protected, and now, MAGIC, it is public
super.resetKeyboardTheme(theme);
}
public void setSimulatedTypingText(@Nullable String textToSimulate) {
if (TextUtils.isEmpty(textToSimulate)) {
mTypingSimulator.stopSimulating();
} else {
mTypingSimulator.startSimulating(textToSimulate);
}
}
private static class TypingSimulator extends Handler {
private static final long INITIAL_DELAY = 512;
private static final long NEXT_KEY_DELAY = 256;
private static final long NEXT_KEY_SPACE_DELAY = 512;
private static final long NEXT_CYCLE_DELAY = 1024;
private static final long KEY_DOWN_DELAY = 128;
private static final int PRESS_MESSAGE = 109;
private static final int RELEASE_MESSAGE = 110;
private final WeakReference<DemoAnyKeyboardView> mDemoAnyKeyboardViewWeakReference;
@NonNull
private String mTextToSimulate = "";
private int mSimulationIndex = 0;
private TypingSimulator(@NonNull DemoAnyKeyboardView keyboardView) {
mDemoAnyKeyboardViewWeakReference = new WeakReference<>(keyboardView);
}
public void startSimulating(@NonNull String textToSimulate) {
stopSimulating();
mTextToSimulate = textToSimulate;
sendMessageDelayed(obtainMessage(PRESS_MESSAGE), INITIAL_DELAY);
}
public void stopSimulating() {
removeMessages(PRESS_MESSAGE);
removeMessages(RELEASE_MESSAGE);
mSimulationIndex = 0;
}
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
DemoAnyKeyboardView keyboardView = mDemoAnyKeyboardViewWeakReference.get();
if (keyboardView == null) return;
final char keyToSimulate = mTextToSimulate.charAt(mSimulationIndex);
switch (msg.what) {
case PRESS_MESSAGE:
keyboardView.simulateKeyTouchEvent(keyToSimulate, true);
sendMessageDelayed(obtainMessage(RELEASE_MESSAGE), KEY_DOWN_DELAY);
break;
case RELEASE_MESSAGE:
keyboardView.simulateKeyTouchEvent(keyToSimulate, false);
mSimulationIndex++;
if (mSimulationIndex == mTextToSimulate.length()) {
mSimulationIndex = 0;
sendMessageDelayed(obtainMessage(PRESS_MESSAGE), NEXT_CYCLE_DELAY);
} else {
sendMessageDelayed(obtainMessage(PRESS_MESSAGE), (keyToSimulate == ' ')? NEXT_KEY_SPACE_DELAY : NEXT_KEY_DELAY);
}
break;
}
}
}
}
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