From 99906b3fc2dcb447aafdd43dda0c4551513b293e Mon Sep 17 00:00:00 2001 From: "Tadashi G. Takaoka" Date: Fri, 27 Jul 2012 14:25:53 +0900 Subject: Move SuddenJumpingTouchEventHandler to internal package Change-Id: Ifc9fb6322a2edbaac0b10e7134ee7e735f14937b --- .../inputmethod/keyboard/MainKeyboardView.java | 1 + .../keyboard/SuddenJumpingTouchEventHandler.java | 153 -------------------- .../internal/SuddenJumpingTouchEventHandler.java | 155 +++++++++++++++++++++ 3 files changed, 156 insertions(+), 153 deletions(-) delete mode 100644 java/src/com/android/inputmethod/keyboard/SuddenJumpingTouchEventHandler.java create mode 100644 java/src/com/android/inputmethod/keyboard/internal/SuddenJumpingTouchEventHandler.java (limited to 'java/src') diff --git a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java index 7b4a3d227..9c28419cf 100644 --- a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java +++ b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java @@ -43,6 +43,7 @@ import com.android.inputmethod.accessibility.AccessibilityUtils; import com.android.inputmethod.accessibility.AccessibleKeyboardViewProxy; import com.android.inputmethod.keyboard.PointerTracker.DrawingProxy; import com.android.inputmethod.keyboard.PointerTracker.TimerProxy; +import com.android.inputmethod.keyboard.internal.SuddenJumpingTouchEventHandler; import com.android.inputmethod.latin.Constants; import com.android.inputmethod.latin.LatinIME; import com.android.inputmethod.latin.LatinImeLogger; diff --git a/java/src/com/android/inputmethod/keyboard/SuddenJumpingTouchEventHandler.java b/java/src/com/android/inputmethod/keyboard/SuddenJumpingTouchEventHandler.java deleted file mode 100644 index 2398c0850..000000000 --- a/java/src/com/android/inputmethod/keyboard/SuddenJumpingTouchEventHandler.java +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright (C) 2011 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.keyboard; - -import android.content.Context; -import android.util.Log; -import android.view.MotionEvent; - -import com.android.inputmethod.latin.LatinImeLogger; -import com.android.inputmethod.latin.R; -import com.android.inputmethod.latin.Utils; -import com.android.inputmethod.latin.define.ProductionFlag; -import com.android.inputmethod.research.ResearchLogger; - -public class SuddenJumpingTouchEventHandler { - private static final String TAG = SuddenJumpingTouchEventHandler.class.getSimpleName(); - private static boolean DEBUG_MODE = LatinImeLogger.sDBG; - - public interface ProcessMotionEvent { - public boolean processMotionEvent(MotionEvent me); - } - - private final ProcessMotionEvent mView; - private final boolean mNeedsSuddenJumpingHack; - - /** 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; - private int mLastX; - private int mLastY; - - public SuddenJumpingTouchEventHandler(Context context, ProcessMotionEvent view) { - mView = view; - mNeedsSuddenJumpingHack = Boolean.parseBoolean(Utils.getDeviceOverrideValue( - context.getResources(), R.array.sudden_jumping_touch_event_device_list, "false")); - } - - public void setKeyboard(Keyboard newKeyboard) { - // One-seventh of the keyboard width seems like a reasonable threshold - final int jumpThreshold = newKeyboard.mOccupiedWidth / 7; - mJumpThresholdSquare = jumpThreshold * jumpThreshold; - } - - /** - * 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.

- * 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 - * {@link MainKeyboardView}. - */ - private boolean handleSuddenJumping(MotionEvent me) { - if (!mNeedsSuddenJumpingHack) - return false; - 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. - if (distanceSquare > mJumpThresholdSquare) { - // 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()); - mView.processMotionEvent(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()); - mView.processMotionEvent(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; - } - - public boolean onTouchEvent(MotionEvent me) { - // If there was a sudden jump, return without processing the actual motion event. - if (handleSuddenJumping(me)) { - if (DEBUG_MODE) - Log.w(TAG, "onTouchEvent: ignore sudden jump " + me); - if (ProductionFlag.IS_EXPERIMENTAL) { - ResearchLogger.suddenJumpingTouchEventHandler_onTouchEvent(me); - } - return true; - } - return mView.processMotionEvent(me); - } -} diff --git a/java/src/com/android/inputmethod/keyboard/internal/SuddenJumpingTouchEventHandler.java b/java/src/com/android/inputmethod/keyboard/internal/SuddenJumpingTouchEventHandler.java new file mode 100644 index 000000000..9e2cbec52 --- /dev/null +++ b/java/src/com/android/inputmethod/keyboard/internal/SuddenJumpingTouchEventHandler.java @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2011 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.keyboard.internal; + +import android.content.Context; +import android.util.Log; +import android.view.MotionEvent; + +import com.android.inputmethod.keyboard.Keyboard; +import com.android.inputmethod.keyboard.MainKeyboardView; +import com.android.inputmethod.latin.LatinImeLogger; +import com.android.inputmethod.latin.R; +import com.android.inputmethod.latin.Utils; +import com.android.inputmethod.latin.define.ProductionFlag; +import com.android.inputmethod.research.ResearchLogger; + +public class SuddenJumpingTouchEventHandler { + private static final String TAG = SuddenJumpingTouchEventHandler.class.getSimpleName(); + private static boolean DEBUG_MODE = LatinImeLogger.sDBG; + + public interface ProcessMotionEvent { + public boolean processMotionEvent(MotionEvent me); + } + + private final ProcessMotionEvent mView; + private final boolean mNeedsSuddenJumpingHack; + + /** 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; + private int mLastX; + private int mLastY; + + public SuddenJumpingTouchEventHandler(Context context, ProcessMotionEvent view) { + mView = view; + mNeedsSuddenJumpingHack = Boolean.parseBoolean(Utils.getDeviceOverrideValue( + context.getResources(), R.array.sudden_jumping_touch_event_device_list, "false")); + } + + public void setKeyboard(Keyboard newKeyboard) { + // One-seventh of the keyboard width seems like a reasonable threshold + final int jumpThreshold = newKeyboard.mOccupiedWidth / 7; + mJumpThresholdSquare = jumpThreshold * jumpThreshold; + } + + /** + * 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.

+ * 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 + * {@link MainKeyboardView}. + */ + private boolean handleSuddenJumping(MotionEvent me) { + if (!mNeedsSuddenJumpingHack) + return false; + 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. + if (distanceSquare > mJumpThresholdSquare) { + // 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()); + mView.processMotionEvent(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()); + mView.processMotionEvent(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; + } + + public boolean onTouchEvent(MotionEvent me) { + // If there was a sudden jump, return without processing the actual motion event. + if (handleSuddenJumping(me)) { + if (DEBUG_MODE) + Log.w(TAG, "onTouchEvent: ignore sudden jump " + me); + if (ProductionFlag.IS_EXPERIMENTAL) { + ResearchLogger.suddenJumpingTouchEventHandler_onTouchEvent(me); + } + return true; + } + return mView.processMotionEvent(me); + } +} -- cgit v1.2.3-83-g751a