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-rw-r--r--services/java/com/android/server/gesture/EdgeGestureTracker.java252
1 files changed, 0 insertions, 252 deletions
diff --git a/services/java/com/android/server/gesture/EdgeGestureTracker.java b/services/java/com/android/server/gesture/EdgeGestureTracker.java
deleted file mode 100644
index 17cd95e..0000000
--- a/services/java/com/android/server/gesture/EdgeGestureTracker.java
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * Copyright (C) 2013 The CyanogenMod Project (Jens Doll)
- *
- * 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.server.gesture;
-
-import android.graphics.Point;
-import android.os.SystemClock;
-import android.util.Slog;
-import android.view.Display;
-import android.view.MotionEvent;
-
-import com.android.internal.util.gesture.EdgeGesturePosition;
-import com.android.internal.util.gesture.EdgeServiceConstants;
-
-/**
- * A simple {@link MotionEvent} tracker class. The main aim of this tracker is to
- * reject gestures as fast as possible, so there is only a small amount of events
- * that will be delayed.
- */
-public class EdgeGestureTracker {
- public final static String TAG = "EdgeGestureTracker";
- public final static boolean DEBUG = false;
-
- public final static long TRIGGER_TIME_MS = 140;
- public final static int PIXEL_SWIPE_OFFTAKE_SLOP = 2;
-
- private final int mBaseThickness;
- private final int mBaseTriggerDistance;
- private final int mBasePerpendicularDistance;
-
- private int mThickness;
- private int mTriggerDistance;
- private int mPerpendicularDistance;
- private int mGracePeriodDistance;
- private long mTimeOut;
-
- private int mDisplayWidth;
- private int mDisplayHeight;
-
- private boolean mActive;
- private EdgeGesturePosition mPosition;
- private long mDownTime;
- private int mInitialX;
- private int mInitialY;
- private int mOffTake;
- private int mGracePeriod;
-
- public interface OnActivationListener {
- public void onActivation(MotionEvent event, int touchX, int touchY, EdgeGesturePosition position);
- }
- private OnActivationListener mActivationListener;
-
- public EdgeGestureTracker(int thickness, int distance, int perpendicular) {
- if (DEBUG) {
- Slog.d(TAG, "init: " + thickness + "," + distance);
- }
- mBaseThickness = thickness;
- mBaseTriggerDistance = distance;
- mBasePerpendicularDistance = perpendicular;
- setSensitivity(0);
- }
-
- private void setSensitivity(int sensitivity) {
- float factor = 0.0f;
- if (sensitivity >= 1) {
- factor = (sensitivity - 1) / 4.0f;
- }
- if (DEBUG) {
- Slog.d(TAG, "sensitivity: " + sensitivity + " => factor:" + factor);
- }
- // default values (without overlay):
- // 140ms ... 210ms
- mTimeOut = (long) (TRIGGER_TIME_MS * (factor + 1.0f));
- // 12dp ... 18dp
- mThickness = (int) (mBaseThickness * (factor + 1.0f));
- // 12dp ... 6dp
- mTriggerDistance = (int) (mBaseTriggerDistance * (1.0f - factor));
- mPerpendicularDistance = (int) (mBasePerpendicularDistance * (1.0f - factor));
- mGracePeriodDistance = (int) (mThickness / 3.0f);
- }
-
- public void setOnActivationListener(OnActivationListener listener) {
- mActivationListener = listener;
- }
-
- public void reset() {
- mActive = false;
- }
-
- public void updateDisplay(Display display) {
- Point outSize = new Point(0,0);
- display.getRealSize(outSize);
- mDisplayWidth = outSize.x;
- mDisplayHeight = outSize.y;
- if (DEBUG) {
- Slog.d(TAG, "new display: " + mDisplayWidth + "," + mDisplayHeight);
- }
- }
-
- public boolean start(MotionEvent motionEvent, int positions, int sensitivity) {
- final boolean unrestricted = (positions & EdgeServiceConstants.UNRESTRICTED) != 0;
- final int x = (int) motionEvent.getX();
- final float fx = motionEvent.getX() / mDisplayWidth;
- final int y = (int) motionEvent.getY();
- final float fy = motionEvent.getY() / mDisplayHeight;
-
- // calculate trigger geometry based on sensitivity
- setSensitivity(sensitivity);
-
- if ((positions & EdgeGesturePosition.LEFT.FLAG) != 0) {
- if (x < mThickness && (unrestricted || (fy > 0.1f && fy < 0.9f))) {
- startWithPosition(motionEvent, EdgeGesturePosition.LEFT);
- return true;
- }
- }
- if ((positions & EdgeGesturePosition.BOTTOM.FLAG) != 0) {
- if (y > mDisplayHeight - mThickness && (unrestricted || (fx > 0.1f && fx < 0.9f))) {
- startWithPosition(motionEvent, EdgeGesturePosition.BOTTOM);
- return true;
- }
- }
- if ((positions & EdgeGesturePosition.RIGHT.FLAG) != 0) {
- if (x > mDisplayWidth - mThickness && (unrestricted || (fy > 0.1f && fy < 0.9f))) {
- startWithPosition(motionEvent, EdgeGesturePosition.RIGHT);
- return true;
- }
- }
- if ((positions & EdgeGesturePosition.TOP.FLAG) != 0) {
- if (y < mThickness && (unrestricted || (fx > 0.1f && fx < 0.9f))) {
- startWithPosition(motionEvent, EdgeGesturePosition.TOP);
- return true;
- }
- }
- return false;
- }
-
- private void startWithPosition(MotionEvent motionEvent, EdgeGesturePosition position) {
- if (DEBUG) {
- Slog.d(TAG, "start tracking from " + position.name());
- }
-
- mDownTime = motionEvent.getDownTime();
- this.mPosition = position;
- mInitialX = (int) motionEvent.getX();
- mInitialY = (int) motionEvent.getY();
- switch (position) {
- case LEFT:
- mGracePeriod = mGracePeriodDistance;
- mOffTake = mInitialX - PIXEL_SWIPE_OFFTAKE_SLOP;
- break;
- case BOTTOM:
- mOffTake = mInitialY + PIXEL_SWIPE_OFFTAKE_SLOP;
- break;
- case RIGHT:
- mGracePeriod = mDisplayWidth - mGracePeriodDistance;
- mOffTake = mInitialX + PIXEL_SWIPE_OFFTAKE_SLOP;
- break;
- case TOP:
- mOffTake = mInitialY - PIXEL_SWIPE_OFFTAKE_SLOP;
- break;
- }
- mActive = true;
- }
-
- public boolean move(MotionEvent motionEvent) {
- if (!mActive || motionEvent.getEventTime() - mDownTime > mTimeOut) {
- Slog.d(TAG, "edge gesture timeout: " + (motionEvent.getEventTime() - mDownTime));
- mActive = false;
- return false;
- }
-
- final int x = (int) motionEvent.getX();
- final int y = (int) motionEvent.getY();
- final int deltaX = x - mInitialX;
- final int deltaY = y - mInitialY;
-
- if (DEBUG) {
- Slog.d(TAG, "move at " + x + "," + y + " " + deltaX + "," + deltaY);
- }
-
- boolean loaded = false;
- switch (mPosition) {
- case LEFT:
- if (x < mGracePeriod) {
- mInitialY = y;
- }
- if (deltaY < mPerpendicularDistance && deltaY > -mPerpendicularDistance
- && x >= mOffTake) {
- if (deltaX < mTriggerDistance) {
- mOffTake = x - PIXEL_SWIPE_OFFTAKE_SLOP;
- return true;
- }
- loaded = true;
- }
- break;
- case BOTTOM:
- if (deltaX < mPerpendicularDistance && deltaX > -mPerpendicularDistance
- && y <= mOffTake) {
- if (deltaY > -mTriggerDistance) {
- mOffTake = y + PIXEL_SWIPE_OFFTAKE_SLOP;
- return true;
- }
- loaded = true;
- }
- break;
- case RIGHT:
- if (x > mGracePeriod) {
- mInitialY = y;
- }
- if (deltaY < mPerpendicularDistance && deltaY > -mPerpendicularDistance
- && x <= mOffTake) {
- if (deltaX > -mTriggerDistance) {
- mOffTake = x + PIXEL_SWIPE_OFFTAKE_SLOP;
- return true;
- }
- loaded = true;
- }
- break;
- case TOP:
- if (deltaX < mPerpendicularDistance && deltaX > -mPerpendicularDistance
- && y >= mOffTake) {
- if (deltaY < mTriggerDistance) {
- mOffTake = y - PIXEL_SWIPE_OFFTAKE_SLOP;
- return true;
- }
- loaded = true;
- }
- break;
- }
- mActive = false;
- if (loaded && mActivationListener != null) {
- if (DEBUG) {
- Slog.d(TAG, "activate at " + x + "," + y + " " + mPosition + " within "
- + (SystemClock.uptimeMillis() - mDownTime) + "ms");
- }
- mActivationListener.onActivation(motionEvent, x, y, mPosition);
- }
- return loaded;
- }
-} \ No newline at end of file
generated by cgit v1.1 at 2024-05-09 06:45:19 +0000