LatinIME/src/com/android/inputmethod/latin/LatinKeyboardView.java

292 lines
11 KiB
Java
Raw Normal View History

/*
* Copyright (C) 2008-2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.android.inputmethod.latin;
import java.util.List;
import android.content.Context;
import android.graphics.Canvas;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.inputmethodservice.Keyboard.Key;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.widget.PopupWindow;
public class LatinKeyboardView extends KeyboardView {
static final int KEYCODE_OPTIONS = -100;
static final int KEYCODE_SHIFT_LONGPRESS = -101;
static final int KEYCODE_F1 = -102;
private Keyboard mPhoneKeyboard;
public LatinKeyboardView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public LatinKeyboardView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setPhoneKeyboard(Keyboard phoneKeyboard) {
mPhoneKeyboard = phoneKeyboard;
}
@Override
protected boolean onLongPress(Key key) {
if (key.codes[0] == Keyboard.KEYCODE_MODE_CHANGE) {
getOnKeyboardActionListener().onKey(KEYCODE_OPTIONS, null);
return true;
} else if (key.codes[0] == Keyboard.KEYCODE_SHIFT) {
getOnKeyboardActionListener().onKey(KEYCODE_SHIFT_LONGPRESS, null);
invalidateAllKeys();
return true;
} else if (key.codes[0] == '0' && getKeyboard() == mPhoneKeyboard) {
// Long pressing on 0 in phone number keypad gives you a '+'.
getOnKeyboardActionListener().onKey('+', null);
return true;
} else {
return super.onLongPress(key);
}
}
private boolean mExtensionVisible;
private LatinKeyboardView mExtension;
private PopupWindow mExtensionPopup;
private boolean mFirstEvent;
@Override
public boolean onTouchEvent(MotionEvent me) {
if (((LatinKeyboard) getKeyboard()).getExtension() == 0) {
return super.onTouchEvent(me);
}
if (me.getY() < 0) {
if (mExtensionVisible) {
int action = me.getAction();
if (mFirstEvent) action = MotionEvent.ACTION_DOWN;
mFirstEvent = false;
MotionEvent translated = MotionEvent.obtain(me.getEventTime(), me.getEventTime(),
action,
me.getX(), me.getY() + mExtension.getHeight(), me.getMetaState());
boolean result = mExtension.onTouchEvent(translated);
translated.recycle();
if (me.getAction() == MotionEvent.ACTION_UP
|| me.getAction() == MotionEvent.ACTION_CANCEL) {
closeExtension();
}
return result;
} else {
if (openExtension()) {
MotionEvent cancel = MotionEvent.obtain(me.getDownTime(), me.getEventTime(),
MotionEvent.ACTION_CANCEL, me.getX() - 100, me.getY() - 100, 0);
super.onTouchEvent(cancel);
cancel.recycle();
if (mExtension.getHeight() > 0) {
MotionEvent translated = MotionEvent.obtain(me.getEventTime(),
me.getEventTime(),
MotionEvent.ACTION_DOWN,
me.getX(), me.getY() + mExtension.getHeight(),
me.getMetaState());
mExtension.onTouchEvent(translated);
translated.recycle();
} else {
mFirstEvent = true;
}
}
return true;
}
} else if (mExtensionVisible) {
closeExtension();
// Send a down event into the main keyboard first
MotionEvent down = MotionEvent.obtain(me.getEventTime(), me.getEventTime(),
MotionEvent.ACTION_DOWN,
me.getX(), me.getY(), me.getMetaState());
super.onTouchEvent(down);
down.recycle();
// Send the actual event
return super.onTouchEvent(me);
} else {
return super.onTouchEvent(me);
}
}
private boolean openExtension() {
if (((LatinKeyboard) getKeyboard()).getExtension() == 0) return false;
makePopupWindow();
mExtensionVisible = true;
return true;
}
private void makePopupWindow() {
if (mExtensionPopup == null) {
int[] windowLocation = new int[2];
mExtensionPopup = new PopupWindow(getContext());
mExtensionPopup.setBackgroundDrawable(null);
LayoutInflater li = (LayoutInflater) getContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
mExtension = (LatinKeyboardView) li.inflate(R.layout.input, null);
mExtension.setOnKeyboardActionListener((LatinIME) getContext());
mExtension.setPopupParent(this);
mExtension.setPopupOffset(0, -windowLocation[1]);
Keyboard keyboard;
mExtension.setKeyboard(keyboard = new LatinKeyboard(getContext(),
((LatinKeyboard) getKeyboard()).getExtension()));
mExtensionPopup.setContentView(mExtension);
mExtensionPopup.setWidth(getWidth());
mExtensionPopup.setHeight(keyboard.getHeight());
getLocationInWindow(windowLocation);
// TODO: Fix the "- 30".
mExtension.setPopupOffset(0, -windowLocation[1] - 30);
mExtensionPopup.showAtLocation(this, 0, 0, -keyboard.getHeight()
+ windowLocation[1]);
} else {
mExtension.setVisibility(VISIBLE);
}
}
@Override
public void closing() {
super.closing();
if (mExtensionPopup != null && mExtensionPopup.isShowing()) {
mExtensionPopup.dismiss();
mExtensionPopup = null;
}
}
private void closeExtension() {
mExtension.setVisibility(INVISIBLE);
mExtension.closing();
mExtensionVisible = false;
}
/**************************** INSTRUMENTATION *******************************/
static final boolean DEBUG_AUTO_PLAY = false;
private static final int MSG_TOUCH_DOWN = 1;
private static final int MSG_TOUCH_UP = 2;
Handler mHandler2;
private String mStringToPlay;
private int mStringIndex;
private boolean mDownDelivered;
private Key[] mAsciiKeys = new Key[256];
private boolean mPlaying;
@Override
public void setKeyboard(Keyboard k) {
super.setKeyboard(k);
if (DEBUG_AUTO_PLAY) {
findKeys();
if (mHandler2 == null) {
mHandler2 = new Handler() {
@Override
public void handleMessage(Message msg) {
removeMessages(MSG_TOUCH_DOWN);
removeMessages(MSG_TOUCH_UP);
if (mPlaying == false) return;
switch (msg.what) {
case MSG_TOUCH_DOWN:
if (mStringIndex >= mStringToPlay.length()) {
mPlaying = false;
return;
}
char c = mStringToPlay.charAt(mStringIndex);
while (c > 255 || mAsciiKeys[(int) c] == null) {
mStringIndex++;
if (mStringIndex >= mStringToPlay.length()) {
mPlaying = false;
return;
}
c = mStringToPlay.charAt(mStringIndex);
}
int x = mAsciiKeys[c].x + 10;
int y = mAsciiKeys[c].y + 26;
MotionEvent me = MotionEvent.obtain(SystemClock.uptimeMillis(),
SystemClock.uptimeMillis(),
MotionEvent.ACTION_DOWN, x, y, 0);
LatinKeyboardView.this.dispatchTouchEvent(me);
me.recycle();
sendEmptyMessageDelayed(MSG_TOUCH_UP, 500); // Deliver up in 500ms if nothing else
// happens
mDownDelivered = true;
break;
case MSG_TOUCH_UP:
char cUp = mStringToPlay.charAt(mStringIndex);
int x2 = mAsciiKeys[cUp].x + 10;
int y2 = mAsciiKeys[cUp].y + 26;
mStringIndex++;
MotionEvent me2 = MotionEvent.obtain(SystemClock.uptimeMillis(),
SystemClock.uptimeMillis(),
MotionEvent.ACTION_UP, x2, y2, 0);
LatinKeyboardView.this.dispatchTouchEvent(me2);
me2.recycle();
sendEmptyMessageDelayed(MSG_TOUCH_DOWN, 500); // Deliver up in 500ms if nothing else
// happens
mDownDelivered = false;
break;
}
}
};
}
}
}
private void findKeys() {
List<Key> keys = getKeyboard().getKeys();
// Get the keys on this keyboard
for (int i = 0; i < keys.size(); i++) {
int code = keys.get(i).codes[0];
if (code >= 0 && code <= 255) {
mAsciiKeys[code] = keys.get(i);
}
}
}
void startPlaying(String s) {
if (!DEBUG_AUTO_PLAY) return;
if (s == null) return;
mStringToPlay = s.toLowerCase();
mPlaying = true;
mDownDelivered = false;
mStringIndex = 0;
mHandler2.sendEmptyMessageDelayed(MSG_TOUCH_DOWN, 10);
}
@Override
public void draw(Canvas c) {
super.draw(c);
if (DEBUG_AUTO_PLAY && mPlaying) {
mHandler2.removeMessages(MSG_TOUCH_DOWN);
mHandler2.removeMessages(MSG_TOUCH_UP);
if (mDownDelivered) {
mHandler2.sendEmptyMessageDelayed(MSG_TOUCH_UP, 20);
} else {
mHandler2.sendEmptyMessageDelayed(MSG_TOUCH_DOWN, 20);
}
}
}
}