Move key preview related methods to KeyPreviewChoreographer (38806940) · Commits · e / os / android_packages_inputmethods_LatinIME

java/src/com/android/inputmethod/keyboard/MainKeyboardView.java

+16 −231

Original line number	Diff line number	Diff line
		@@ -16,10 +16,7 @@

		package com.android.inputmethod.keyboard;

		import android.animation.Animator;
		import android.animation.AnimatorInflater;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.content.Context;
		import android.content.SharedPreferences;
		@@ -35,13 +32,10 @@ import android.preference.PreferenceManager;
		import android.util.AttributeSet;
		import android.util.DisplayMetrics;
		import android.util.Log;
		import android.util.TypedValue;
		import android.view.LayoutInflater;
		import android.view.MotionEvent;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.animation.AccelerateInterpolator;
		import android.view.animation.DecelerateInterpolator;
		import android.view.inputmethod.InputMethodSubtype;
		import android.widget.TextView;

		@@ -53,6 +47,7 @@ import com.android.inputmethod.keyboard.internal.DrawingPreviewPlacerView;
		import com.android.inputmethod.keyboard.internal.GestureFloatingTextDrawingPreview;
		import com.android.inputmethod.keyboard.internal.GestureTrailsDrawingPreview;
		import com.android.inputmethod.keyboard.internal.KeyDrawParams;
		import com.android.inputmethod.keyboard.internal.KeyPreviewChoreographer;
		import com.android.inputmethod.keyboard.internal.KeyPreviewDrawParams;
		import com.android.inputmethod.keyboard.internal.NonDistinctMultitouchHelper;
		import com.android.inputmethod.keyboard.internal.SlidingKeyInputDrawingPreview;
		@@ -71,9 +66,6 @@ import com.android.inputmethod.latin.utils.UsabilityStudyLogUtils;
		import com.android.inputmethod.latin.utils.ViewLayoutUtils;
		import com.android.inputmethod.research.ResearchLogger;

		import java.util.ArrayDeque;
		import java.util.HashMap;
		import java.util.HashSet;
		import java.util.WeakHashMap;

		/**
		@@ -161,18 +153,8 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack

		// Key preview
		private static final boolean FADE_OUT_KEY_TOP_LETTER_WHEN_KEY_IS_PRESSED = false;
		// Free {@link TextView} pool that can be used for key preview.
		private final ArrayDeque<TextView> mFreeKeyPreviewTextViews = CollectionUtils.newArrayDeque();
		// Map from {@link Key} to {@link TextView} that is currently being displayed as key preview.
		private final HashMap<Key,TextView> mShowingKeyPreviewTextViews = CollectionUtils.newHashMap();
		private final KeyPreviewDrawParams mKeyPreviewDrawParams;
		private static final float KEY_PREVIEW_START_ZOOM_IN_SCALE = 0.7f;
		private static final float KEY_PREVIEW_END_ZOOM_IN_SCALE = 1.0f;
		private static final float KEY_PREVIEW_END_ZOOM_OUT_SCALE = 0.7f;
		private static final AccelerateInterpolator ACCELERATE_INTERPOLATOR =
		new AccelerateInterpolator();
		private static final DecelerateInterpolator DECELERATE_INTERPOLATOR =
		new DecelerateInterpolator();
		private final KeyPreviewChoreographer mKeyPreviewChoreographer;

		// More keys keyboard
		private final Paint mBackgroundDimAlphaPaint = new Paint();
		@@ -261,6 +243,8 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
		R.styleable.MainKeyboardView_altCodeKeyWhileTypingFadeinAnimator, 0);

		mKeyPreviewDrawParams = new KeyPreviewDrawParams(mainKeyboardViewAttr);
		mKeyPreviewChoreographer = new KeyPreviewChoreographer(mKeyPreviewDrawParams);

		final int moreKeysKeyboardLayoutId = mainKeyboardViewAttr.getResourceId(
		R.styleable.MainKeyboardView_moreKeysKeyboardLayout, 0);
		mConfigShowMoreKeysKeyboardAtTouchedPoint = mainKeyboardViewAttr.getBoolean(
		@@ -477,60 +461,13 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
		return mKeyPreviewDrawParams.isPopupEnabled();
		}

		private TextView getKeyPreviewTextView(final Key key) {
		TextView previewTextView = mShowingKeyPreviewTextViews.remove(key);
		if (previewTextView != null) {
		return previewTextView;
		}
		previewTextView = mFreeKeyPreviewTextViews.poll();
		if (previewTextView != null) {
		return previewTextView;
		}
		final Context context = getContext();
		final int previewLayoutId = mKeyPreviewDrawParams.mLayoutId;
		if (previewLayoutId != 0) {
		previewTextView = (TextView)LayoutInflater.from(context)
		.inflate(previewLayoutId, null);
		} else {
		previewTextView = new TextView(context);
		}
		locatePreviewPlacerView();
		mDrawingPreviewPlacerView.addView(
		previewTextView, ViewLayoutUtils.newLayoutParam(mDrawingPreviewPlacerView, 0, 0));
		return previewTextView;
		}

		// Implements {@link DrawingHandler.Callbacks} method.
		@Override
		public void dismissAllKeyPreviews() {
		for (final Key key : new HashSet<Key>(mShowingKeyPreviewTextViews.keySet())) {
		dismissKeyPreviewWithoutDelay(key);
		}
		mKeyPreviewChoreographer.dismissAllKeyPreviews();
		PointerTracker.setReleasedKeyGraphicsToAllKeys();
		}

		// Background state set
		private static final int[][][] KEY_PREVIEW_BACKGROUND_STATE_TABLE = {
		{ // STATE_MIDDLE
		EMPTY_STATE_SET,
		{ R.attr.state_has_morekeys }
		},
		{ // STATE_LEFT
		{ R.attr.state_left_edge },
		{ R.attr.state_left_edge, R.attr.state_has_morekeys }
		},
		{ // STATE_RIGHT
		{ R.attr.state_right_edge },
		{ R.attr.state_right_edge, R.attr.state_has_morekeys }
		}
		};
		private static final int STATE_MIDDLE = 0;
		private static final int STATE_LEFT = 1;
		private static final int STATE_RIGHT = 2;
		private static final int STATE_NORMAL = 0;
		private static final int STATE_HAS_MOREKEYS = 1;

		// TODO: Take this method out of this class.
		@Override
		public void showKeyPreview(final Key key) {
		// If key is invalid or IME is already closed, we must not show key preview.
		@@ -547,185 +484,33 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
		return;
		}

		final TextView previewTextView = getKeyPreviewTextView(key);
		final KeyDrawParams drawParams = mKeyDrawParams;
		previewTextView.setTextColor(drawParams.mPreviewTextColor);
		final Drawable background = previewTextView.getBackground();
		final String label = key.getPreviewLabel();
		// What we show as preview should match what we show on a key top in onDraw().
		if (label != null) {
		// TODO Should take care of temporaryShiftLabel here.
		previewTextView.setCompoundDrawables(null, null, null, null);
		previewTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
		key.selectPreviewTextSize(drawParams));
		previewTextView.setTypeface(key.selectPreviewTypeface(drawParams));
		previewTextView.setText(label);
		} else {
		previewTextView.setCompoundDrawables(null, null, null,
		key.getPreviewIcon(keyboard.mIconsSet));
		previewTextView.setText(null);
		}

		previewTextView.measure(
		ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
		final int keyDrawWidth = key.getDrawWidth();
		final int previewWidth = previewTextView.getMeasuredWidth();
		final int previewHeight = previewParams.mPreviewHeight;
		previewParams.setGeometry(previewTextView);
		final TextView previewTextView = mKeyPreviewChoreographer.getKeyPreviewTextView(
		key, getContext());
		locatePreviewPlacerView();
		mDrawingPreviewPlacerView.addView(
		previewTextView, ViewLayoutUtils.newLayoutParam(mDrawingPreviewPlacerView, 0, 0));
		getLocationInWindow(mOriginCoords);
		// The key preview is horizontally aligned with the center of the visible part of the
		// parent key. If it doesn't fit in this {@link KeyboardView}, it is moved inward to fit and
		// the left/right background is used if such background is specified.
		final int statePosition;
		int previewX = key.getDrawX() - (previewWidth - keyDrawWidth) / 2
		+ CoordinateUtils.x(mOriginCoords);
		if (previewX < 0) {
		previewX = 0;
		statePosition = STATE_LEFT;
		} else if (previewX > getWidth() - previewWidth) {
		previewX = getWidth() - previewWidth;
		statePosition = STATE_RIGHT;
		} else {
		statePosition = STATE_MIDDLE;
		}
		// The key preview is placed vertically above the top edge of the parent key with an
		// arbitrary offset.
		final int previewY = key.getY() - previewHeight + previewParams.mPreviewOffset
		+ CoordinateUtils.y(mOriginCoords);

		if (background != null) {
		final int hasMoreKeys = (key.getMoreKeys() != null) ? STATE_HAS_MOREKEYS : STATE_NORMAL;
		background.setState(KEY_PREVIEW_BACKGROUND_STATE_TABLE[statePosition][hasMoreKeys]);
		}
		ViewLayoutUtils.placeViewAt(
		previewTextView, previewX, previewY, previewWidth, previewHeight);

		if (!isHardwareAccelerated()) {
		previewTextView.setVisibility(VISIBLE);
		mShowingKeyPreviewTextViews.put(key, previewTextView);
		return;
		}
		previewTextView.setPivotX(previewWidth / 2.0f);
		previewTextView.setPivotY(previewHeight);

		final Animator zoomIn = createZoomInAniation(key, previewTextView);
		final Animator zoomOut = createZoomOutAnimation(key, previewTextView);
		final KeyPreviewAnimations animation = new KeyPreviewAnimations(zoomIn, zoomOut);
		previewTextView.setTag(animation);
		animation.startZoomIn();
		}

		// TODO: Move this internal class out to a separate external class.
		private static class KeyPreviewAnimations extends AnimatorListenerAdapter {
		private final Animator mZoomIn;
		private final Animator mZoomOut;

		public KeyPreviewAnimations(final Animator zoomIn, final Animator zoomOut) {
		mZoomIn = zoomIn;
		mZoomOut = zoomOut;
		}

		public void startZoomIn() {
		mZoomIn.start();
		}

		public void startZoomOut() {
		if (mZoomIn.isRunning()) {
		mZoomIn.addListener(this);
		return;
		}
		mZoomOut.start();
		}

		@Override
		public void onAnimationEnd(final Animator animation) {
		mZoomOut.start();
		}
		}

		// TODO: Take this method out of this class.
		private Animator createZoomInAniation(final Key key, final TextView previewTextView) {
		final ObjectAnimator scaleXAnimation = ObjectAnimator.ofFloat(
		previewTextView, SCALE_X, KEY_PREVIEW_START_ZOOM_IN_SCALE,
		KEY_PREVIEW_END_ZOOM_IN_SCALE);
		final ObjectAnimator scaleYAnimation = ObjectAnimator.ofFloat(
		previewTextView, SCALE_Y, KEY_PREVIEW_START_ZOOM_IN_SCALE,
		KEY_PREVIEW_END_ZOOM_IN_SCALE);
		final AnimatorSet zoomInAnimation = new AnimatorSet();
		zoomInAnimation.play(scaleXAnimation).with(scaleYAnimation);
		// TODO: Implement preference option to control key preview animation duration.
		zoomInAnimation.setDuration(mKeyPreviewDrawParams.mZoomInDuration);
		zoomInAnimation.setInterpolator(DECELERATE_INTERPOLATOR);
		zoomInAnimation.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationStart(final Animator animation) {
		previewTextView.setVisibility(VISIBLE);
		mShowingKeyPreviewTextViews.put(key, previewTextView);
		}
		});
		return zoomInAnimation;
		}

		// TODO: Take this method out of this class.
		private Animator createZoomOutAnimation(final Key key, final TextView previewTextView) {
		final ObjectAnimator scaleXAnimation = ObjectAnimator.ofFloat(
		previewTextView, SCALE_X, KEY_PREVIEW_END_ZOOM_OUT_SCALE);
		final ObjectAnimator scaleYAnimation = ObjectAnimator.ofFloat(
		previewTextView, SCALE_Y, KEY_PREVIEW_END_ZOOM_OUT_SCALE);
		final AnimatorSet zoomOutAnimation = new AnimatorSet();
		zoomOutAnimation.play(scaleXAnimation).with(scaleYAnimation);
		// TODO: Implement preference option to control key preview animation duration.
		final int zoomOutDuration = Math.min(mKeyPreviewDrawParams.mZoomOutDuration,
		mKeyPreviewDrawParams.getLingerTimeout());
		zoomOutAnimation.setDuration(zoomOutDuration);
		zoomOutAnimation.setInterpolator(ACCELERATE_INTERPOLATOR);
		zoomOutAnimation.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(final Animator animation) {
		dismissKeyPreviewWithoutDelay(key);
		}
		});
		return zoomOutAnimation;
		mKeyPreviewChoreographer.placeKeyPreview(key, previewTextView, keyboard.mIconsSet,
		mKeyDrawParams, getWidth(), mOriginCoords);
		mKeyPreviewChoreographer.showKeyPreview(key, previewTextView, isHardwareAccelerated());
		}

		// Implements {@link TimerHandler.Callbacks} method.
		// TODO: Take this method out of this class.
		@Override
		public void dismissKeyPreviewWithoutDelay(final Key key) {
		if (key == null) {
		return;
		}
		final TextView previewTextView = mShowingKeyPreviewTextViews.remove(key);
		if (previewTextView != null) {
		final Object tag = previewTextView.getTag();
		if (tag instanceof Animator) {
		((Animator)tag).cancel();
		}
		previewTextView.setTag(null);
		previewTextView.setVisibility(INVISIBLE);
		mFreeKeyPreviewTextViews.add(previewTextView);
		}
		mKeyPreviewChoreographer.dismissKeyPreview(key, false /* withAnimation */);
		// To redraw key top letter.
		invalidateKey(key);
		}

		// TODO: Take this method out of this class.
		@Override
		public void dismissKeyPreview(final Key key) {
		final TextView previewTextView = mShowingKeyPreviewTextViews.get(key);
		if (previewTextView == null) {
		return;
		}
		if (!isHardwareAccelerated()) {
		// TODO: Implement preference option to control key preview method and duration.
		mDrawingHandler.dismissKeyPreview(mKeyPreviewDrawParams.getLingerTimeout(), key);
		return;
		}
		final Object tag = previewTextView.getTag();
		if (tag instanceof KeyPreviewAnimations) {
		final KeyPreviewAnimations animation = (KeyPreviewAnimations)tag;
		animation.startZoomOut();
		}
		mKeyPreviewChoreographer.dismissKeyPreview(key, true /* withAnimation */);
		}

		public void setSlidingKeyInputPreviewEnabled(final boolean enabled) {
		@@ -1098,7 +883,7 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
		}
		// Don't draw key top letter when key preview is showing.
		if (FADE_OUT_KEY_TOP_LETTER_WHEN_KEY_IS_PRESSED
		&& mShowingKeyPreviewTextViews.containsKey(key)) {
		&& mKeyPreviewChoreographer.isShowingKeyPreview(key)) {
		// TODO: Fade out animation for the key top letter, and fade in animation for the key
		// background color when the user presses the key.
		return;

java/src/com/android/inputmethod/keyboard/internal/KeyPreviewChoreographer.java

0 → 100644

+279 −0

File added.

Preview size limit exceeded, changes collapsed.

java/src/com/android/inputmethod/keyboard/internal/KeyPreviewDrawParams.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ public final class KeyPreviewDrawParams {
		public final int mLayoutId;
		public final int mPreviewOffset;
		public final int mPreviewHeight;
		// TODO: Move those parameters to preferences.
		public final int mZoomInDuration;
		public final int mZoomOutDuration;
		private int mLingerTimeout;