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Diffstat (limited to 'quickstep/src/com/android/quickstep/util/BorderAnimator.java')
| -rw-r--r-- | quickstep/src/com/android/quickstep/util/BorderAnimator.java | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/quickstep/src/com/android/quickstep/util/BorderAnimator.java b/quickstep/src/com/android/quickstep/util/BorderAnimator.java deleted file mode 100644 index 7563187b93..0000000000 --- a/quickstep/src/com/android/quickstep/util/BorderAnimator.java +++ /dev/null @@ -1,352 +0,0 @@ -/* - * Copyright (C) 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.quickstep.util; - -import android.animation.Animator; -import android.animation.AnimatorListenerAdapter; -import android.annotation.ColorInt; -import android.annotation.Nullable; -import android.graphics.Canvas; -import android.graphics.Color; -import android.graphics.Paint; -import android.graphics.Rect; -import android.view.View; -import android.view.animation.Interpolator; - -import androidx.annotation.NonNull; -import androidx.annotation.Px; - -import com.android.app.animation.Interpolators; -import com.android.launcher3.anim.AnimatedFloat; -import com.android.launcher3.anim.AnimatorListeners; - -/** - * Utility class for drawing a rounded-rect border around a view. - * <p> - * To use this class: - * 1. Create an instance in the target view. NOTE: The border will animate outwards from the - * provided border bounds. See {@link SimpleParams} and {@link ScalingParams} to determine - * which would be best for your target view. - * 2. Override the target view's {@link android.view.View#draw(Canvas)} method and call - * {@link BorderAnimator#drawBorder(Canvas)} after {@code super.draw(canvas)}. - * 3. Call {@link BorderAnimator#buildAnimator(boolean)} and start the animation or call - * {@link BorderAnimator#setBorderVisible(boolean)} where appropriate. - */ -public final class BorderAnimator { - - public static final int DEFAULT_BORDER_COLOR = Color.WHITE; - - private static final long DEFAULT_APPEARANCE_ANIMATION_DURATION_MS = 300; - private static final long DEFAULT_DISAPPEARANCE_ANIMATION_DURATION_MS = 133; - private static final Interpolator DEFAULT_INTERPOLATOR = Interpolators.EMPHASIZED_DECELERATE; - - @NonNull private final AnimatedFloat mBorderAnimationProgress = new AnimatedFloat( - this::updateOutline); - @Px private final int mBorderRadiusPx; - @NonNull private final BorderAnimationParams mBorderAnimationParams; - private final long mAppearanceDurationMs; - private final long mDisappearanceDurationMs; - @NonNull private final Interpolator mInterpolator; - @NonNull private final Paint mBorderPaint = new Paint(Paint.ANTI_ALIAS_FLAG); - - @Nullable private Animator mRunningBorderAnimation; - - public BorderAnimator( - @Px int borderRadiusPx, - @ColorInt int borderColor, - @NonNull BorderAnimationParams borderAnimationParams) { - this(borderRadiusPx, - borderColor, - borderAnimationParams, - DEFAULT_APPEARANCE_ANIMATION_DURATION_MS, - DEFAULT_DISAPPEARANCE_ANIMATION_DURATION_MS, - DEFAULT_INTERPOLATOR); - } - - /** - * @param borderRadiusPx the radius of the border's corners, in pixels - * @param borderColor the border's color - * @param borderAnimationParams params for handling different target view layout situation. - * @param appearanceDurationMs appearance animation duration, in milliseconds - * @param disappearanceDurationMs disappearance animation duration, in milliseconds - * @param interpolator animation interpolator - */ - public BorderAnimator( - @Px int borderRadiusPx, - @ColorInt int borderColor, - @NonNull BorderAnimationParams borderAnimationParams, - long appearanceDurationMs, - long disappearanceDurationMs, - @NonNull Interpolator interpolator) { - mBorderRadiusPx = borderRadiusPx; - mBorderAnimationParams = borderAnimationParams; - mAppearanceDurationMs = appearanceDurationMs; - mDisappearanceDurationMs = disappearanceDurationMs; - mInterpolator = interpolator; - - mBorderPaint.setColor(borderColor); - mBorderPaint.setStyle(Paint.Style.STROKE); - mBorderPaint.setAlpha(0); - } - - private void updateOutline() { - float interpolatedProgress = mInterpolator.getInterpolation( - mBorderAnimationProgress.value); - - mBorderAnimationParams.setProgress(interpolatedProgress); - mBorderPaint.setAlpha(Math.round(255 * interpolatedProgress)); - mBorderPaint.setStrokeWidth(mBorderAnimationParams.getBorderWidth()); - mBorderAnimationParams.mTargetView.invalidate(); - } - - /** - * Draws the border on the given canvas. - * <p> - * Call this method in the target view's {@link android.view.View#draw(Canvas)} method after - * calling super. - */ - public void drawBorder(Canvas canvas) { - float alignmentAdjustment = mBorderAnimationParams.getAlignmentAdjustment(); - canvas.drawRoundRect( - /* left= */ mBorderAnimationParams.mBorderBounds.left + alignmentAdjustment, - /* top= */ mBorderAnimationParams.mBorderBounds.top + alignmentAdjustment, - /* right= */ mBorderAnimationParams.mBorderBounds.right - alignmentAdjustment, - /* bottom= */ mBorderAnimationParams.mBorderBounds.bottom - alignmentAdjustment, - /* rx= */ mBorderRadiusPx + mBorderAnimationParams.getRadiusAdjustment(), - /* ry= */ mBorderRadiusPx + mBorderAnimationParams.getRadiusAdjustment(), - /* paint= */ mBorderPaint); - } - - /** - * Builds the border appearance/disappearance animation. - */ - @NonNull - public Animator buildAnimator(boolean isAppearing) { - mRunningBorderAnimation = mBorderAnimationProgress.animateToValue(isAppearing ? 1f : 0f); - mRunningBorderAnimation.setDuration( - isAppearing ? mAppearanceDurationMs : mDisappearanceDurationMs); - - mRunningBorderAnimation.addListener(new AnimatorListenerAdapter() { - @Override - public void onAnimationStart(Animator animation) { - mBorderAnimationParams.onShowBorder(); - } - }); - mRunningBorderAnimation.addListener( - AnimatorListeners.forEndCallback(() -> { - mRunningBorderAnimation = null; - if (isAppearing) { - return; - } - mBorderAnimationParams.onHideBorder(); - })); - - return mRunningBorderAnimation; - } - - /** - * Immediately shows/hides the border without an animation. - * <p> - * To animate the appearance/disappearance, see {@link BorderAnimator#buildAnimator(boolean)} - */ - public void setBorderVisible(boolean visible) { - if (mRunningBorderAnimation != null) { - mRunningBorderAnimation.end(); - } - if (visible) { - mBorderAnimationParams.onShowBorder(); - } - mBorderAnimationProgress.updateValue(visible ? 1f : 0f); - if (!visible) { - mBorderAnimationParams.onHideBorder(); - } - } - - /** - * Callback to update the border bounds when building this animation. - */ - public interface BorderBoundsBuilder { - - /** - * Sets the given rect to the most up-to-date bounds. - */ - void updateBorderBounds(Rect rect); - } - - /** - * Params for handling different target view layout situation. - */ - private abstract static class BorderAnimationParams { - - @NonNull private final Rect mBorderBounds = new Rect(); - @NonNull private final BorderBoundsBuilder mBoundsBuilder; - - @NonNull final View mTargetView; - @Px final int mBorderWidthPx; - - private float mAnimationProgress = 0f; - @Nullable private View.OnLayoutChangeListener mLayoutChangeListener; - - /** - * @param borderWidthPx the width of the border, in pixels - * @param boundsBuilder callback to update the border bounds - * @param targetView the view that will be drawing the border - */ - private BorderAnimationParams( - @Px int borderWidthPx, - @NonNull BorderBoundsBuilder boundsBuilder, - @NonNull View targetView) { - mBorderWidthPx = borderWidthPx; - mBoundsBuilder = boundsBuilder; - mTargetView = targetView; - } - - private void setProgress(float progress) { - mAnimationProgress = progress; - } - - private float getBorderWidth() { - return mBorderWidthPx * mAnimationProgress; - } - - float getAlignmentAdjustment() { - // Outset the border by half the width to create an outwards-growth animation - return (-getBorderWidth() / 2f) + getAlignmentAdjustmentInset(); - } - - - void onShowBorder() { - if (mLayoutChangeListener == null) { - mLayoutChangeListener = - (v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> { - onShowBorder(); - mTargetView.invalidate(); - }; - mTargetView.addOnLayoutChangeListener(mLayoutChangeListener); - } - mBoundsBuilder.updateBorderBounds(mBorderBounds); - } - - void onHideBorder() { - if (mLayoutChangeListener != null) { - mTargetView.removeOnLayoutChangeListener(mLayoutChangeListener); - mLayoutChangeListener = null; - } - } - - abstract int getAlignmentAdjustmentInset(); - - abstract float getRadiusAdjustment(); - } - - /** - * Use an instance of this {@link BorderAnimationParams} if the border can be drawn outside the - * target view's bounds without any additional logic. - */ - public static final class SimpleParams extends BorderAnimationParams { - - public SimpleParams( - @Px int borderWidthPx, - @NonNull BorderBoundsBuilder boundsBuilder, - @NonNull View targetView) { - super(borderWidthPx, boundsBuilder, targetView); - } - - @Override - int getAlignmentAdjustmentInset() { - return 0; - } - - @Override - float getRadiusAdjustment() { - return -getAlignmentAdjustment(); - } - } - - /** - * Use an instance of this {@link BorderAnimationParams} if the border would other be clipped by - * the target view's bound. - * <p> - * Note: using these params will set the scales and pivots of the - * container and content views, however will only reset the scales back to 1. - */ - public static final class ScalingParams extends BorderAnimationParams { - - @NonNull private final View mContentView; - - /** - * @param targetView the view that will be drawing the border. this view will be scaled up - * to make room for the border - * @param contentView the view around which the border will be drawn. this view will be - * scaled down reciprocally to keep its original size and location. - */ - public ScalingParams( - @Px int borderWidthPx, - @NonNull BorderBoundsBuilder boundsBuilder, - @NonNull View targetView, - @NonNull View contentView) { - super(borderWidthPx, boundsBuilder, targetView); - mContentView = contentView; - } - - @Override - void onShowBorder() { - super.onShowBorder(); - float width = mTargetView.getWidth(); - float height = mTargetView.getHeight(); - // Scale up just enough to make room for the border. Fail fast and fix the scaling - // onLayout. - float scaleX = width == 0 ? 1f : 1f + ((2 * mBorderWidthPx) / width); - float scaleY = height == 0 ? 1f : 1f + ((2 * mBorderWidthPx) / height); - - mTargetView.setPivotX(width / 2); - mTargetView.setPivotY(height / 2); - mTargetView.setScaleX(scaleX); - mTargetView.setScaleY(scaleY); - - mContentView.setPivotX(mContentView.getWidth() / 2f); - mContentView.setPivotY(mContentView.getHeight() / 2f); - mContentView.setScaleX(1f / scaleX); - mContentView.setScaleY(1f / scaleY); - } - - @Override - void onHideBorder() { - super.onHideBorder(); - mTargetView.setPivotX(mTargetView.getWidth()); - mTargetView.setPivotY(mTargetView.getHeight()); - mTargetView.setScaleX(1f); - mTargetView.setScaleY(1f); - - mContentView.setPivotX(mContentView.getWidth() / 2f); - mContentView.setPivotY(mContentView.getHeight() / 2f); - mContentView.setScaleX(1f); - mContentView.setScaleY(1f); - } - - @Override - int getAlignmentAdjustmentInset() { - // Inset the border since we are scaling the container up - return mBorderWidthPx; - } - - @Override - float getRadiusAdjustment() { - // Increase the radius since we are scaling the container up - return getAlignmentAdjustment(); - } - } -} |