diff options
Diffstat (limited to 'java/src/com/android/inputmethod/latin/LatinKeyboardView.java')
| -rw-r--r-- | java/src/com/android/inputmethod/latin/LatinKeyboardView.java | 380 |
1 files changed, 0 insertions, 380 deletions
diff --git a/java/src/com/android/inputmethod/latin/LatinKeyboardView.java b/java/src/com/android/inputmethod/latin/LatinKeyboardView.java deleted file mode 100644 index a5476e457..000000000 --- a/java/src/com/android/inputmethod/latin/LatinKeyboardView.java +++ /dev/null @@ -1,380 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * 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 android.content.Context; -import android.graphics.Canvas; -import android.graphics.Paint; -import android.inputmethodservice.Keyboard; -import android.inputmethodservice.Keyboard.Key; -import android.os.Handler; -import android.os.Message; -import android.os.SystemClock; -import android.text.TextUtils; -import android.util.AttributeSet; -import android.view.MotionEvent; - -import java.util.List; - -public class LatinKeyboardView extends LatinKeyboardBaseView { - - static final int KEYCODE_OPTIONS = -100; - static final int KEYCODE_OPTIONS_LONGPRESS = -101; - static final int KEYCODE_VOICE = -102; - static final int KEYCODE_F1 = -103; - static final int KEYCODE_NEXT_LANGUAGE = -104; - static final int KEYCODE_PREV_LANGUAGE = -105; - - private Keyboard mPhoneKeyboard; - - /** Whether we've started dropping move events because we found a big jump */ - private boolean mDroppingEvents; - /** - * Whether multi-touch disambiguation needs to be disabled if a real multi-touch event has - * occured - */ - private boolean mDisableDisambiguation; - /** The distance threshold at which we start treating the touch session as a multi-touch */ - private int mJumpThresholdSquare = Integer.MAX_VALUE; - /** The y coordinate of the last row */ - private int mLastRowY; - - public LatinKeyboardView(Context context, AttributeSet attrs) { - this(context, attrs, 0); - } - - public LatinKeyboardView(Context context, AttributeSet attrs, int defStyle) { - super(context, attrs, defStyle); - } - - public void setPhoneKeyboard(Keyboard phoneKeyboard) { - mPhoneKeyboard = phoneKeyboard; - } - - @Override - public void setPreviewEnabled(boolean previewEnabled) { - if (getKeyboard() == mPhoneKeyboard) { - // Phone keyboard never shows popup preview (except language switch). - super.setPreviewEnabled(false); - } else { - super.setPreviewEnabled(previewEnabled); - } - } - - @Override - public void setKeyboard(Keyboard newKeyboard) { - final Keyboard oldKeyboard = getKeyboard(); - if (oldKeyboard instanceof LatinKeyboard) { - // Reset old keyboard state before switching to new keyboard. - ((LatinKeyboard)oldKeyboard).keyReleased(); - } - super.setKeyboard(newKeyboard); - // One-seventh of the keyboard width seems like a reasonable threshold - mJumpThresholdSquare = newKeyboard.getMinWidth() / 7; - mJumpThresholdSquare *= mJumpThresholdSquare; - // Assuming there are 4 rows, this is the coordinate of the last row - mLastRowY = (newKeyboard.getHeight() * 3) / 4; - setKeyboardLocal(newKeyboard); - } - - @Override - protected boolean onLongPress(Key key) { - int primaryCode = key.codes[0]; - if (primaryCode == KEYCODE_OPTIONS) { - return invokeOnKey(KEYCODE_OPTIONS_LONGPRESS); - } else if (primaryCode == '0' && getKeyboard() == mPhoneKeyboard) { - // Long pressing on 0 in phone number keypad gives you a '+'. - return invokeOnKey('+'); - } else { - return super.onLongPress(key); - } - } - - private boolean invokeOnKey(int primaryCode) { - getOnKeyboardActionListener().onKey(primaryCode, null, - LatinKeyboardBaseView.NOT_A_TOUCH_COORDINATE, - LatinKeyboardBaseView.NOT_A_TOUCH_COORDINATE); - return true; - } - - @Override - protected CharSequence adjustCase(CharSequence label) { - Keyboard keyboard = getKeyboard(); - if (keyboard.isShifted() - && keyboard instanceof LatinKeyboard - && ((LatinKeyboard) keyboard).isAlphaKeyboard() - && !TextUtils.isEmpty(label) && label.length() < 3 - && Character.isLowerCase(label.charAt(0))) { - label = label.toString().toUpperCase(); - } - return label; - } - - public boolean setShiftLocked(boolean shiftLocked) { - Keyboard keyboard = getKeyboard(); - if (keyboard instanceof LatinKeyboard) { - ((LatinKeyboard)keyboard).setShiftLocked(shiftLocked); - invalidateAllKeys(); - return true; - } - return false; - } - - /** - * This function checks to see if we need to handle any sudden jumps in the pointer location - * that could be due to a multi-touch being treated as a move by the firmware or hardware. - * Once a sudden jump is detected, all subsequent move events are discarded - * until an UP is received.<P> - * When a sudden jump is detected, an UP event is simulated at the last position and when - * the sudden moves subside, a DOWN event is simulated for the second key. - * @param me the motion event - * @return true if the event was consumed, so that it doesn't continue to be handled by - * KeyboardView. - */ - private boolean handleSuddenJump(MotionEvent me) { - final int action = me.getAction(); - final int x = (int) me.getX(); - final int y = (int) me.getY(); - boolean result = false; - - // Real multi-touch event? Stop looking for sudden jumps - if (me.getPointerCount() > 1) { - mDisableDisambiguation = true; - } - if (mDisableDisambiguation) { - // If UP, reset the multi-touch flag - if (action == MotionEvent.ACTION_UP) mDisableDisambiguation = false; - return false; - } - - switch (action) { - case MotionEvent.ACTION_DOWN: - // Reset the "session" - mDroppingEvents = false; - mDisableDisambiguation = false; - break; - case MotionEvent.ACTION_MOVE: - // Is this a big jump? - final int distanceSquare = (mLastX - x) * (mLastX - x) + (mLastY - y) * (mLastY - y); - // Check the distance and also if the move is not entirely within the bottom row - // If it's only in the bottom row, it might be an intentional slide gesture - // for language switching - if (distanceSquare > mJumpThresholdSquare - && (mLastY < mLastRowY || y < mLastRowY)) { - // If we're not yet dropping events, start dropping and send an UP event - if (!mDroppingEvents) { - mDroppingEvents = true; - // Send an up event - MotionEvent translated = MotionEvent.obtain(me.getEventTime(), me.getEventTime(), - MotionEvent.ACTION_UP, - mLastX, mLastY, me.getMetaState()); - super.onTouchEvent(translated); - translated.recycle(); - } - result = true; - } else if (mDroppingEvents) { - // If moves are small and we're already dropping events, continue dropping - result = true; - } - break; - case MotionEvent.ACTION_UP: - if (mDroppingEvents) { - // Send a down event first, as we dropped a bunch of sudden jumps and assume that - // the user is releasing the touch on the second key. - MotionEvent translated = MotionEvent.obtain(me.getEventTime(), me.getEventTime(), - MotionEvent.ACTION_DOWN, - x, y, me.getMetaState()); - super.onTouchEvent(translated); - translated.recycle(); - mDroppingEvents = false; - // Let the up event get processed as well, result = false - } - break; - } - // Track the previous coordinate - mLastX = x; - mLastY = y; - return result; - } - - @Override - public boolean onTouchEvent(MotionEvent me) { - LatinKeyboard keyboard = (LatinKeyboard) getKeyboard(); - if (DEBUG_LINE) { - mLastX = (int) me.getX(); - mLastY = (int) me.getY(); - invalidate(); - } - - // If there was a sudden jump, return without processing the actual motion event. - if (handleSuddenJump(me)) - return true; - - // Reset any bounding box controls in the keyboard - if (me.getAction() == MotionEvent.ACTION_DOWN) { - keyboard.keyReleased(); - } - - if (me.getAction() == MotionEvent.ACTION_UP) { - int languageDirection = keyboard.getLanguageChangeDirection(); - if (languageDirection != 0) { - getOnKeyboardActionListener().onKey( - languageDirection == 1 ? KEYCODE_NEXT_LANGUAGE : KEYCODE_PREV_LANGUAGE, - null, mLastX, mLastY); - me.setAction(MotionEvent.ACTION_CANCEL); - keyboard.keyReleased(); - return super.onTouchEvent(me); - } - } - - return super.onTouchEvent(me); - } - - /**************************** INSTRUMENTATION *******************************/ - - static final boolean DEBUG_AUTO_PLAY = false; - static final boolean DEBUG_LINE = 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; - private int mLastX; - private int mLastY; - private Paint mPaint; - - private void setKeyboardLocal(Keyboard 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[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); - } - } - } - - public void startPlaying(String s) { - if (DEBUG_AUTO_PLAY) { - 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) { - LatinIMEUtil.GCUtils.getInstance().reset(); - boolean tryGC = true; - for (int i = 0; i < LatinIMEUtil.GCUtils.GC_TRY_LOOP_MAX && tryGC; ++i) { - try { - super.draw(c); - tryGC = false; - } catch (OutOfMemoryError e) { - tryGC = LatinIMEUtil.GCUtils.getInstance().tryGCOrWait("LatinKeyboardView", e); - } - } - if (DEBUG_AUTO_PLAY) { - if (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); - } - } - } - if (DEBUG_LINE) { - if (mPaint == null) { - mPaint = new Paint(); - mPaint.setColor(0x80FFFFFF); - mPaint.setAntiAlias(false); - } - c.drawLine(mLastX, 0, mLastX, getHeight(), mPaint); - c.drawLine(0, mLastY, getWidth(), mLastY, mPaint); - } - } -} |