Merge "Migrate FocusEventDebugView to an input subpackage." into main (9d46ada7) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/input/InputManagerService.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -116,6 +116,7 @@ import com.android.server.DisplayThread;
		import com.android.server.LocalServices;
		import com.android.server.Watchdog;
		import com.android.server.input.InputManagerInternal.LidSwitchCallback;
		import com.android.server.input.debug.FocusEventDebugView;
		import com.android.server.inputmethod.InputMethodManagerInternal;
		import com.android.server.policy.WindowManagerPolicy;

services/core/java/com/android/server/input/FocusEventDebugGlobalMonitor.java→services/core/java/com/android/server/input/debug/FocusEventDebugGlobalMonitor.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -14,7 +14,7 @@
		* limitations under the License.
		*/

		package com.android.server.input;
		package com.android.server.input.debug;

		import android.view.Display;
		import android.view.InputEvent;
		@@ -22,6 +22,7 @@ import android.view.InputEventReceiver;
		import android.view.MotionEvent;

		import com.android.server.UiThread;
		import com.android.server.input.InputManagerService;

		/**
		* Receives input events before they are dispatched and reports them to FocusEventDebugView.

services/core/java/com/android/server/input/FocusEventDebugView.java→services/core/java/com/android/server/input/debug/FocusEventDebugView.java

+6 −388

Original line number	Diff line number	Diff line
		@@ -14,7 +14,7 @@
		* limitations under the License.
		*/

		package com.android.server.input;
		package com.android.server.input.debug;

		import static android.util.TypedValue.COMPLEX_UNIT_DIP;
		import static android.util.TypedValue.COMPLEX_UNIT_SP;
		@@ -24,11 +24,9 @@ import android.animation.LayoutTransition;
		import android.annotation.AnyThread;
		import android.annotation.Nullable;
		import android.content.Context;
		import android.graphics.Canvas;
		import android.graphics.Color;
		import android.graphics.ColorFilter;
		import android.graphics.ColorMatrixColorFilter;
		import android.graphics.Paint;
		import android.graphics.Typeface;
		import android.util.DisplayMetrics;
		import android.util.Pair;
		@@ -40,7 +38,6 @@ import android.view.KeyEvent;
		import android.view.MotionEvent;
		import android.view.RoundedCorner;
		import android.view.View;
		import android.view.ViewConfiguration;
		import android.view.WindowInsets;
		import android.view.animation.AccelerateInterpolator;
		import android.widget.HorizontalScrollView;
		@@ -50,19 +47,17 @@ import android.widget.TextView;

		import com.android.internal.R;
		import com.android.internal.annotations.VisibleForTesting;
		import com.android.server.input.InputManagerService;

		import java.util.HashMap;
		import java.util.Iterator;
		import java.util.Locale;
		import java.util.Map;
		import java.util.concurrent.TimeUnit;
		import java.util.function.Supplier;

		/**
		* Displays focus events, such as physical keyboard KeyEvents and non-pointer MotionEvents on
		* the screen.
		*/
		class FocusEventDebugView extends RelativeLayout {
		public class FocusEventDebugView extends RelativeLayout {

		private static final String TAG = FocusEventDebugView.class.getSimpleName();

		@@ -112,7 +107,7 @@ class FocusEventDebugView extends RelativeLayout {
		mOuterPadding = (int) TypedValue.applyDimension(COMPLEX_UNIT_DIP, OUTER_PADDING_DP, mDm);
		}

		FocusEventDebugView(Context c, InputManagerService service) {
		public FocusEventDebugView(Context c, InputManagerService service) {
		this(c, service, () -> new RotaryInputValueView(c), () -> new RotaryInputGraphView(c));
		}

		@@ -149,11 +144,13 @@ class FocusEventDebugView extends RelativeLayout {
		return super.dispatchKeyEvent(event);
		}

		/** Determines whether to show the key presses visualization. */
		@AnyThread
		public void updateShowKeyPresses(boolean enabled) {
		post(() -> handleUpdateShowKeyPresses(enabled));
		}

		/** Determines whether to show the rotary input visualization. */
		@AnyThread
		public void updateShowRotaryInput(boolean enabled) {
		post(() -> handleUpdateShowRotaryInput(enabled));
		@@ -358,13 +355,6 @@ class FocusEventDebugView extends RelativeLayout {
		return mRotaryInputValueView != null;
		}

		/**
		* Converts a dimension in scaled pixel units to integer display pixels.
		*/
		private static int applyDimensionSp(int dimensionSp, DisplayMetrics dm) {
		return (int) TypedValue.applyDimension(COMPLEX_UNIT_SP, dimensionSp, dm);
		}

		private static class PressedKeyView extends TextView {

		private static final ColorFilter sInvertColors = new ColorMatrixColorFilter(new float[]{
		@@ -473,376 +463,4 @@ class FocusEventDebugView extends RelativeLayout {
		invalidate();
		}
		}

		// TODO(b/286086154): move RotaryInputGraphView and RotaryInputValueView to a subpackage.

		/** Draws the most recent rotary input value and indicates whether the source is active. */
		@VisibleForTesting
		static class RotaryInputValueView extends TextView {

		private static final int INACTIVE_TEXT_COLOR = 0xffff00ff;
		private static final int ACTIVE_TEXT_COLOR = 0xff420f28;
		private static final int TEXT_SIZE_SP = 8;
		private static final int SIDE_PADDING_SP = 4;
		/** Determines how long the active status lasts. */
		private static final int ACTIVE_STATUS_DURATION = 250 /* milliseconds */;
		private static final ColorFilter ACTIVE_BACKGROUND_FILTER =
		new ColorMatrixColorFilter(new float[]{
		0, 0, 0, 0, 255, // red
		0, 0, 0, 0, 0, // green
		0, 0, 0, 0, 255, // blue
		0, 0, 0, 0, 200 // alpha
		});

		private final Runnable mUpdateActivityStatusCallback = () -> updateActivityStatus(false);
		private final float mScaledVerticalScrollFactor;

		@VisibleForTesting
		RotaryInputValueView(Context c) {
		super(c);

		DisplayMetrics dm = mContext.getResources().getDisplayMetrics();
		mScaledVerticalScrollFactor = ViewConfiguration.get(c).getScaledVerticalScrollFactor();

		setText(getFormattedValue(0));
		setTextColor(INACTIVE_TEXT_COLOR);
		setTextSize(applyDimensionSp(TEXT_SIZE_SP, dm));
		setPaddingRelative(applyDimensionSp(SIDE_PADDING_SP, dm), 0,
		applyDimensionSp(SIDE_PADDING_SP, dm), 0);
		setTypeface(null, Typeface.BOLD);
		setBackgroundResource(R.drawable.focus_event_rotary_input_background);
		}

		void updateValue(float value) {
		removeCallbacks(mUpdateActivityStatusCallback);

		setText(getFormattedValue(value * mScaledVerticalScrollFactor));

		updateActivityStatus(true);
		postDelayed(mUpdateActivityStatusCallback, ACTIVE_STATUS_DURATION);
		}

		@VisibleForTesting
		void updateActivityStatus(boolean active) {
		if (active) {
		setTextColor(ACTIVE_TEXT_COLOR);
		getBackground().setColorFilter(ACTIVE_BACKGROUND_FILTER);
		} else {
		setTextColor(INACTIVE_TEXT_COLOR);
		getBackground().clearColorFilter();
		}
		}

		private static String getFormattedValue(float value) {
		return String.format("%s%.1f", value < 0 ? "-" : "+", Math.abs(value));
		}
		}

		/**
		* Shows a graph with the rotary input values as a function of time.
		* The graph gets reset if no action is received for a certain amount of time.
		*/
		@VisibleForTesting
		static class RotaryInputGraphView extends View {

		private static final int FRAME_COLOR = 0xbf741b47;
		private static final int FRAME_WIDTH_SP = 2;
		private static final int FRAME_BORDER_GAP_SP = 10;
		private static final int FRAME_TEXT_SIZE_SP = 10;
		private static final int FRAME_TEXT_OFFSET_SP = 2;
		private static final int GRAPH_COLOR = 0xffff00ff;
		private static final int GRAPH_LINE_WIDTH_SP = 1;
		private static final int GRAPH_POINT_RADIUS_SP = 4;
		private static final long MAX_SHOWN_TIME_INTERVAL = TimeUnit.SECONDS.toMillis(5);
		private static final float DEFAULT_FRAME_CENTER_POSITION = 0;
		private static final int MAX_GRAPH_VALUES_SIZE = 400;
		/** Maximum time between values so that they are considered part of the same gesture. */
		private static final long MAX_GESTURE_TIME = TimeUnit.SECONDS.toMillis(1);

		private final DisplayMetrics mDm;
		/**
		* Distance in position units (amount scrolled in display pixels) from the center to the
		* top/bottom frame lines.
		*/
		private final float mFrameCenterToBorderDistance;
		private final float mScaledVerticalScrollFactor;
		private final Locale mDefaultLocale;
		private final Paint mFramePaint = new Paint();
		private final Paint mFrameTextPaint = new Paint();
		private final Paint mGraphLinePaint = new Paint();
		private final Paint mGraphPointPaint = new Paint();

		private final CyclicBuffer mGraphValues = new CyclicBuffer(MAX_GRAPH_VALUES_SIZE);
		/** Position at which graph values are placed at the center of the graph. */
		private float mFrameCenterPosition = DEFAULT_FRAME_CENTER_POSITION;

		@VisibleForTesting
		RotaryInputGraphView(Context c) {
		super(c);

		mDm = mContext.getResources().getDisplayMetrics();
		// This makes the center-to-border distance equivalent to the display height, meaning
		// that the total height of the graph is equivalent to 2x the display height.
		mFrameCenterToBorderDistance = mDm.heightPixels;
		mScaledVerticalScrollFactor = ViewConfiguration.get(c).getScaledVerticalScrollFactor();
		mDefaultLocale = Locale.getDefault();

		mFramePaint.setColor(FRAME_COLOR);
		mFramePaint.setStrokeWidth(applyDimensionSp(FRAME_WIDTH_SP, mDm));

		mFrameTextPaint.setColor(GRAPH_COLOR);
		mFrameTextPaint.setTextSize(applyDimensionSp(FRAME_TEXT_SIZE_SP, mDm));

		mGraphLinePaint.setColor(GRAPH_COLOR);
		mGraphLinePaint.setStrokeWidth(applyDimensionSp(GRAPH_LINE_WIDTH_SP, mDm));
		mGraphLinePaint.setStrokeCap(Paint.Cap.ROUND);
		mGraphLinePaint.setStrokeJoin(Paint.Join.ROUND);

		mGraphPointPaint.setColor(GRAPH_COLOR);
		mGraphPointPaint.setStrokeWidth(applyDimensionSp(GRAPH_POINT_RADIUS_SP, mDm));
		mGraphPointPaint.setStrokeCap(Paint.Cap.ROUND);
		mGraphPointPaint.setStrokeJoin(Paint.Join.ROUND);
		}

		/**
		* Reads new scroll axis value and updates the list accordingly. Old positions are
		* kept at the front (what you would get with getFirst), while the recent positions are
		* kept at the back (what you would get with getLast). Also updates the frame center
		* position to handle out-of-bounds cases.
		*/
		void addValue(float scrollAxisValue, long eventTime) {
		// Remove values that are too old.
		while (mGraphValues.getSize() > 0
		&& (eventTime - mGraphValues.getFirst().mTime) > MAX_SHOWN_TIME_INTERVAL) {
		mGraphValues.removeFirst();
		}

		// If there are no recent values, reset the frame center.
		if (mGraphValues.getSize() == 0) {
		mFrameCenterPosition = DEFAULT_FRAME_CENTER_POSITION;
		}

		// Handle new value. We multiply the scroll axis value by the scaled scroll factor to
		// get the amount of pixels to be scrolled. We also compute the accumulated position
		// by adding the current value to the last one (if not empty).
		final float displacement = scrollAxisValue * mScaledVerticalScrollFactor;
		final float prevPos = (mGraphValues.getSize() == 0 ? 0 : mGraphValues.getLast().mPos);
		final float pos = prevPos + displacement;

		mGraphValues.add(pos, eventTime);

		// The difference between the distance of the most recent position from the center
		// frame (pos - mFrameCenterPosition) and the maximum allowed distance from the center
		// frame (mFrameCenterToBorderDistance).
		final float verticalDiff = Math.abs(pos - mFrameCenterPosition)
		- mFrameCenterToBorderDistance;
		// If needed, translate frame.
		if (verticalDiff > 0) {
		final int sign = pos - mFrameCenterPosition < 0 ? -1 : 1;
		// Here, we update the center frame position by the exact amount needed for us to
		// stay within the maximum allowed distance from the center frame.
		mFrameCenterPosition += sign * verticalDiff;
		}

		// Redraw canvas.
		invalidate();
		}

		@Override
		protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);

		// Note: vertical coordinates in Canvas go from top to bottom,
		// that is bottomY > middleY > topY.
		final int verticalMargin = applyDimensionSp(FRAME_BORDER_GAP_SP, mDm);
		final int topY = verticalMargin;
		final int bottomY = getHeight() - verticalMargin;
		final int middleY = (topY + bottomY) / 2;

		// Note: horizontal coordinates in Canvas go from left to right,
		// that is rightX > leftX.
		final int leftX = 0;
		final int rightX = getWidth();

		// Draw the frame, which includes 3 lines that show the maximum,
		// minimum and middle positions of the graph.
		canvas.drawLine(leftX, topY, rightX, topY, mFramePaint);
		canvas.drawLine(leftX, middleY, rightX, middleY, mFramePaint);
		canvas.drawLine(leftX, bottomY, rightX, bottomY, mFramePaint);

		// Draw the position that each frame line corresponds to.
		final int frameTextOffset = applyDimensionSp(FRAME_TEXT_OFFSET_SP, mDm);
		canvas.drawText(
		String.format(mDefaultLocale, "%.1f",
		mFrameCenterPosition + mFrameCenterToBorderDistance),
		leftX,
		topY - frameTextOffset, mFrameTextPaint
		);
		canvas.drawText(
		String.format(mDefaultLocale, "%.1f", mFrameCenterPosition),
		leftX,
		middleY - frameTextOffset, mFrameTextPaint
		);
		canvas.drawText(
		String.format(mDefaultLocale, "%.1f",
		mFrameCenterPosition - mFrameCenterToBorderDistance),
		leftX,
		bottomY - frameTextOffset, mFrameTextPaint
		);

		// If there are no graph values to be drawn, stop here.
		if (mGraphValues.getSize() == 0) {
		return;
		}

		// Draw the graph using the times and positions.
		// We start at the most recent value (which should be drawn at the right) and move
		// to the older values (which should be drawn to the left of more recent ones). Negative
		// indices are handled by circuling back to the end of the buffer.
		final long mostRecentTime = mGraphValues.getLast().mTime;
		float prevCoordX = 0;
		float prevCoordY = 0;
		float prevAge = 0;
		for (Iterator<GraphValue> iter = mGraphValues.reverseIterator(); iter.hasNext();) {
		final GraphValue value = iter.next();

		final int age = (int) (mostRecentTime - value.mTime);
		final float pos = value.mPos;

		// We get the horizontal coordinate in time units from left to right with
		// (MAX_SHOWN_TIME_INTERVAL - age). Then, we rescale it to match the canvas
		// units by dividing it by the time-domain length (MAX_SHOWN_TIME_INTERVAL)
		// and by multiplying it by the canvas length (rightX - leftX). Finally, we
		// offset the coordinate by adding it to leftX.
		final float coordX = leftX + ((float) (MAX_SHOWN_TIME_INTERVAL - age)
		/ MAX_SHOWN_TIME_INTERVAL) * (rightX - leftX);

		// We get the vertical coordinate in position units from middle to top with
		// (pos - mFrameCenterPosition). Then, we rescale it to match the canvas
		// units by dividing it by half of the position-domain length
		// (mFrameCenterToBorderDistance) and by multiplying it by half of the canvas
		// length (middleY - topY). Finally, we offset the coordinate by subtracting
		// it from middleY (we can't "add" here because the coordinate grows from top
		// to bottom).
		final float coordY = middleY - ((pos - mFrameCenterPosition)
		/ mFrameCenterToBorderDistance) * (middleY - topY);

		// Draw a point for this value.
		canvas.drawPoint(coordX, coordY, mGraphPointPaint);

		// If this value is part of the same gesture as the previous one, draw a line
		// between them. We ignore the first value (with age = 0).
		if (age != 0 && (age - prevAge) <= MAX_GESTURE_TIME) {
		canvas.drawLine(prevCoordX, prevCoordY, coordX, coordY, mGraphLinePaint);
		}

		prevCoordX = coordX;
		prevCoordY = coordY;
		prevAge = age;
		}
		}

		@VisibleForTesting
		float getFrameCenterPosition() {
		return mFrameCenterPosition;
		}

		/**
		* Holds data needed to draw each entry in the graph.
		*/
		private static class GraphValue {
		/** Position. */
		float mPos;
		/** Time when this value was added. */
		long mTime;

		GraphValue(float pos, long time) {
		this.mPos = pos;
		this.mTime = time;
		}
		}

		/**
		* Holds the graph values as a cyclic buffer. It has a fixed capacity, and it replaces the
		* old values with new ones to avoid creating new objects.
		*/
		private static class CyclicBuffer {
		private final GraphValue[] mValues;
		private final int mCapacity;
		private int mSize = 0;
		private int mLastIndex = 0;

		// The iteration index and counter are here to make it easier to reset them.
		/** Determines the value currently pointed by the iterator. */
		private int mIteratorIndex;
		/** Counts how many values have been iterated through. */
		private int mIteratorCount;

		/** Used traverse the values in reverse order. */
		private final Iterator<GraphValue> mReverseIterator = new Iterator<GraphValue>() {
		@Override
		public boolean hasNext() {
		return mIteratorCount <= mSize;
		}

		@Override
		public GraphValue next() {
		// Returns the value currently pointed by the iterator and moves the iterator to
		// the previous one.
		mIteratorCount++;
		return mValues[(mIteratorIndex-- + mCapacity) % mCapacity];
		}
		};

		CyclicBuffer(int capacity) {
		mCapacity = capacity;
		mValues = new GraphValue[capacity];
		}

		/**
		* Add new graph value. If there is an existing object, we replace its data with the
		* new one. With this, we re-use old objects instead of creating new ones.
		*/
		void add(float pos, long time) {
		mLastIndex = (mLastIndex + 1) % mCapacity;
		if (mValues[mLastIndex] == null) {
		mValues[mLastIndex] = new GraphValue(pos, time);
		} else {
		final GraphValue oldValue = mValues[mLastIndex];
		oldValue.mPos = pos;
		oldValue.mTime = time;
		}

		// If needed, account for new value in the buffer size.
		if (mSize != mCapacity) {
		mSize++;
		}
		}

		int getSize() {
		return mSize;
		}

		GraphValue getFirst() {
		final int distanceBetweenLastAndFirst = (mCapacity - mSize) + 1;
		final int firstIndex = (mLastIndex + distanceBetweenLastAndFirst) % mCapacity;
		return mValues[firstIndex];
		}

		GraphValue getLast() {
		return mValues[mLastIndex];
		}

		void removeFirst() {
		mSize--;
		}

		/** Returns an iterator pointing at the last value. */
		Iterator<GraphValue> reverseIterator() {
		mIteratorIndex = mLastIndex;
		mIteratorCount = 1;
		return mReverseIterator;
		}
		}
		}
		}

services/core/java/com/android/server/input/debug/RotaryInputGraphView.java

0 → 100644

+345 −0

File added.

Preview size limit exceeded, changes collapsed.

services/core/java/com/android/server/input/debug/RotaryInputValueView.java

0 → 100644

+102 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2023 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.server.input.debug;

		import static android.util.TypedValue.COMPLEX_UNIT_SP;

		import android.content.Context;
		import android.graphics.ColorFilter;
		import android.graphics.ColorMatrixColorFilter;
		import android.graphics.Typeface;
		import android.util.DisplayMetrics;
		import android.util.TypedValue;
		import android.view.ViewConfiguration;
		import android.widget.TextView;

		import com.android.internal.R;
		import com.android.internal.annotations.VisibleForTesting;

		import java.util.Locale;

		/** Draws the most recent rotary input value and indicates whether the source is active. */
		class RotaryInputValueView extends TextView {

		private static final int INACTIVE_TEXT_COLOR = 0xffff00ff;
		private static final int ACTIVE_TEXT_COLOR = 0xff420f28;
		private static final int TEXT_SIZE_SP = 8;
		private static final int SIDE_PADDING_SP = 4;
		/** Determines how long the active status lasts. */
		private static final int ACTIVE_STATUS_DURATION = 250 /* milliseconds */;
		private static final ColorFilter ACTIVE_BACKGROUND_FILTER =
		new ColorMatrixColorFilter(new float[]{
		0, 0, 0, 0, 255, // red
		0, 0, 0, 0, 0, // green
		0, 0, 0, 0, 255, // blue
		0, 0, 0, 0, 200 // alpha
		});

		private final Runnable mUpdateActivityStatusCallback = () -> updateActivityStatus(false);
		private final float mScaledVerticalScrollFactor;
		private final Locale mDefaultLocale = Locale.getDefault();

		RotaryInputValueView(Context c) {
		super(c);

		DisplayMetrics dm = mContext.getResources().getDisplayMetrics();
		mScaledVerticalScrollFactor = ViewConfiguration.get(c).getScaledVerticalScrollFactor();

		setText(getFormattedValue(0));
		setTextColor(INACTIVE_TEXT_COLOR);
		setTextSize(applyDimensionSp(TEXT_SIZE_SP, dm));
		setPaddingRelative(applyDimensionSp(SIDE_PADDING_SP, dm), 0,
		applyDimensionSp(SIDE_PADDING_SP, dm), 0);
		setTypeface(null, Typeface.BOLD);
		setBackgroundResource(R.drawable.focus_event_rotary_input_background);
		}

		/** Updates the shown text with the formatted value. */
		void updateValue(float value) {
		removeCallbacks(mUpdateActivityStatusCallback);

		setText(getFormattedValue(value * mScaledVerticalScrollFactor));

		updateActivityStatus(true);
		postDelayed(mUpdateActivityStatusCallback, ACTIVE_STATUS_DURATION);
		}

		@VisibleForTesting
		void updateActivityStatus(boolean active) {
		if (active) {
		setTextColor(ACTIVE_TEXT_COLOR);
		getBackground().setColorFilter(ACTIVE_BACKGROUND_FILTER);
		} else {
		setTextColor(INACTIVE_TEXT_COLOR);
		getBackground().clearColorFilter();
		}
		}

		private String getFormattedValue(float value) {
		return String.format(mDefaultLocale, "%s%.1f", value < 0 ? "-" : "+", Math.abs(value));
		}

		/**
		* Converts a dimension in scaled pixel units to integer display pixels.
		*/
		private static int applyDimensionSp(int dimensionSp, DisplayMetrics dm) {
		return (int) TypedValue.applyDimension(COMPLEX_UNIT_SP, dimensionSp, dm);
		}
		}