| /* |
| * Copyright (C) 2014 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.systemui.statusbar.notification.row; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Canvas; |
| import android.graphics.Outline; |
| import android.graphics.Path; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.ViewOutlineProvider; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.statusbar.notification.AnimatableProperty; |
| import com.android.systemui.statusbar.notification.PropertyAnimator; |
| import com.android.systemui.statusbar.notification.stack.AnimationProperties; |
| import com.android.systemui.statusbar.notification.stack.StackStateAnimator; |
| |
| /** |
| * Like {@link ExpandableView}, but setting an outline for the height and clipping. |
| */ |
| public abstract class ExpandableOutlineView extends ExpandableView { |
| |
| private static final AnimatableProperty TOP_ROUNDNESS = AnimatableProperty.from( |
| "topRoundness", |
| ExpandableOutlineView::setTopRoundnessInternal, |
| ExpandableOutlineView::getCurrentTopRoundness, |
| R.id.top_roundess_animator_tag, |
| R.id.top_roundess_animator_end_tag, |
| R.id.top_roundess_animator_start_tag); |
| private static final AnimatableProperty BOTTOM_ROUNDNESS = AnimatableProperty.from( |
| "bottomRoundness", |
| ExpandableOutlineView::setBottomRoundnessInternal, |
| ExpandableOutlineView::getCurrentBottomRoundness, |
| R.id.bottom_roundess_animator_tag, |
| R.id.bottom_roundess_animator_end_tag, |
| R.id.bottom_roundess_animator_start_tag); |
| private static final AnimationProperties ROUNDNESS_PROPERTIES = |
| new AnimationProperties().setDuration( |
| StackStateAnimator.ANIMATION_DURATION_CORNER_RADIUS); |
| private static final Path EMPTY_PATH = new Path(); |
| |
| private final Rect mOutlineRect = new Rect(); |
| private final Path mClipPath = new Path(); |
| private boolean mCustomOutline; |
| private float mOutlineAlpha = -1f; |
| protected float mOutlineRadius; |
| private boolean mAlwaysRoundBothCorners; |
| private Path mTmpPath = new Path(); |
| private float mCurrentBottomRoundness; |
| private float mCurrentTopRoundness; |
| private float mBottomRoundness; |
| private float mTopRoundness; |
| private int mBackgroundTop; |
| |
| /** |
| * {@code false} if the children views of the {@link ExpandableOutlineView} are translated when |
| * it is moved. Otherwise, the translation is set on the {@code ExpandableOutlineView} itself. |
| */ |
| protected boolean mDismissUsingRowTranslationX = true; |
| private float[] mTmpCornerRadii = new float[8]; |
| |
| private final ViewOutlineProvider mProvider = new ViewOutlineProvider() { |
| @Override |
| public void getOutline(View view, Outline outline) { |
| if (!mCustomOutline && getCurrentTopRoundness() == 0.0f |
| && getCurrentBottomRoundness() == 0.0f && !mAlwaysRoundBothCorners) { |
| // Only when translating just the contents, does the outline need to be shifted. |
| int translation = !mDismissUsingRowTranslationX ? (int) getTranslation() : 0; |
| int left = Math.max(translation, 0); |
| int top = mClipTopAmount + mBackgroundTop; |
| int right = getWidth() + Math.min(translation, 0); |
| int bottom = Math.max(getActualHeight() - mClipBottomAmount, top); |
| outline.setRect(left, top, right, bottom); |
| } else { |
| Path clipPath = getClipPath(false /* ignoreTranslation */); |
| if (clipPath != null) { |
| outline.setPath(clipPath); |
| } |
| } |
| outline.setAlpha(mOutlineAlpha); |
| } |
| }; |
| |
| protected Path getClipPath(boolean ignoreTranslation) { |
| int left; |
| int top; |
| int right; |
| int bottom; |
| int height; |
| float topRoundness = mAlwaysRoundBothCorners |
| ? mOutlineRadius : getCurrentBackgroundRadiusTop(); |
| if (!mCustomOutline) { |
| // The outline just needs to be shifted if we're translating the contents. Otherwise |
| // it's already in the right place. |
| int translation = !mDismissUsingRowTranslationX && !ignoreTranslation |
| ? (int) getTranslation() : 0; |
| int halfExtraWidth = (int) (mExtraWidthForClipping / 2.0f); |
| left = Math.max(translation, 0) - halfExtraWidth; |
| top = mClipTopAmount + mBackgroundTop; |
| right = getWidth() + halfExtraWidth + Math.min(translation, 0); |
| // If the top is rounded we want the bottom to be at most at the top roundness, in order |
| // to avoid the shadow changing when scrolling up. |
| bottom = Math.max(mMinimumHeightForClipping, |
| Math.max(getActualHeight() - mClipBottomAmount, (int) (top + topRoundness))); |
| } else { |
| left = mOutlineRect.left; |
| top = mOutlineRect.top; |
| right = mOutlineRect.right; |
| bottom = mOutlineRect.bottom; |
| } |
| height = bottom - top; |
| if (height == 0) { |
| return EMPTY_PATH; |
| } |
| float bottomRoundness = mAlwaysRoundBothCorners |
| ? mOutlineRadius : getCurrentBackgroundRadiusBottom(); |
| if (topRoundness + bottomRoundness > height) { |
| float overShoot = topRoundness + bottomRoundness - height; |
| float currentTopRoundness = getCurrentTopRoundness(); |
| float currentBottomRoundness = getCurrentBottomRoundness(); |
| topRoundness -= overShoot * currentTopRoundness |
| / (currentTopRoundness + currentBottomRoundness); |
| bottomRoundness -= overShoot * currentBottomRoundness |
| / (currentTopRoundness + currentBottomRoundness); |
| } |
| getRoundedRectPath(left, top, right, bottom, topRoundness, bottomRoundness, mTmpPath); |
| return mTmpPath; |
| } |
| |
| public void getRoundedRectPath(int left, int top, int right, int bottom, |
| float topRoundness, float bottomRoundness, Path outPath) { |
| outPath.reset(); |
| mTmpCornerRadii[0] = topRoundness; |
| mTmpCornerRadii[1] = topRoundness; |
| mTmpCornerRadii[2] = topRoundness; |
| mTmpCornerRadii[3] = topRoundness; |
| mTmpCornerRadii[4] = bottomRoundness; |
| mTmpCornerRadii[5] = bottomRoundness; |
| mTmpCornerRadii[6] = bottomRoundness; |
| mTmpCornerRadii[7] = bottomRoundness; |
| outPath.addRoundRect(left, top, right, bottom, mTmpCornerRadii, Path.Direction.CW); |
| } |
| |
| public ExpandableOutlineView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| setOutlineProvider(mProvider); |
| initDimens(); |
| } |
| |
| @Override |
| protected boolean drawChild(Canvas canvas, View child, long drawingTime) { |
| canvas.save(); |
| if (childNeedsClipping(child)) { |
| Path clipPath = getCustomClipPath(child); |
| if (clipPath == null) { |
| clipPath = getClipPath(false /* ignoreTranslation */); |
| } |
| if (clipPath != null) { |
| canvas.clipPath(clipPath); |
| } |
| } |
| boolean result = super.drawChild(canvas, child, drawingTime); |
| canvas.restore(); |
| return result; |
| } |
| |
| @Override |
| public void setExtraWidthForClipping(float extraWidthForClipping) { |
| super.setExtraWidthForClipping(extraWidthForClipping); |
| invalidate(); |
| } |
| |
| @Override |
| public void setMinimumHeightForClipping(int minimumHeightForClipping) { |
| super.setMinimumHeightForClipping(minimumHeightForClipping); |
| invalidate(); |
| } |
| |
| protected boolean childNeedsClipping(View child) { |
| return false; |
| } |
| |
| protected boolean isClippingNeeded() { |
| // When translating the contents instead of the overall view, we need to make sure we clip |
| // rounded to the contents. |
| boolean forTranslation = getTranslation() != 0 && !mDismissUsingRowTranslationX; |
| return mAlwaysRoundBothCorners || mCustomOutline || forTranslation; |
| } |
| |
| private void initDimens() { |
| Resources res = getResources(); |
| mOutlineRadius = res.getDimension(R.dimen.notification_shadow_radius); |
| mAlwaysRoundBothCorners = res.getBoolean(R.bool.config_clipNotificationsToOutline); |
| if (!mAlwaysRoundBothCorners) { |
| mOutlineRadius = res.getDimensionPixelSize(R.dimen.notification_corner_radius); |
| } |
| setClipToOutline(mAlwaysRoundBothCorners); |
| } |
| |
| @Override |
| public boolean setTopRoundness(float topRoundness, boolean animate) { |
| if (mTopRoundness != topRoundness) { |
| float diff = Math.abs(topRoundness - mTopRoundness); |
| mTopRoundness = topRoundness; |
| boolean shouldAnimate = animate; |
| if (PropertyAnimator.isAnimating(this, TOP_ROUNDNESS) && diff > 0.5f) { |
| // Fail safe: |
| // when we've been animating previously and we're now getting an update in the |
| // other direction, make sure to animate it too, otherwise, the localized updating |
| // may make the start larger than 1.0. |
| shouldAnimate = true; |
| } |
| PropertyAnimator.setProperty(this, TOP_ROUNDNESS, topRoundness, |
| ROUNDNESS_PROPERTIES, shouldAnimate); |
| return true; |
| } |
| return false; |
| } |
| |
| protected void applyRoundness() { |
| invalidateOutline(); |
| invalidate(); |
| } |
| |
| public float getCurrentBackgroundRadiusTop() { |
| return getCurrentTopRoundness() * mOutlineRadius; |
| } |
| |
| public float getCurrentTopRoundness() { |
| return mCurrentTopRoundness; |
| } |
| |
| public float getCurrentBottomRoundness() { |
| return mCurrentBottomRoundness; |
| } |
| |
| public float getCurrentBackgroundRadiusBottom() { |
| return getCurrentBottomRoundness() * mOutlineRadius; |
| } |
| |
| @Override |
| public boolean setBottomRoundness(float bottomRoundness, boolean animate) { |
| if (mBottomRoundness != bottomRoundness) { |
| float diff = Math.abs(bottomRoundness - mBottomRoundness); |
| mBottomRoundness = bottomRoundness; |
| boolean shouldAnimate = animate; |
| if (PropertyAnimator.isAnimating(this, BOTTOM_ROUNDNESS) && diff > 0.5f) { |
| // Fail safe: |
| // when we've been animating previously and we're now getting an update in the |
| // other direction, make sure to animate it too, otherwise, the localized updating |
| // may make the start larger than 1.0. |
| shouldAnimate = true; |
| } |
| PropertyAnimator.setProperty(this, BOTTOM_ROUNDNESS, bottomRoundness, |
| ROUNDNESS_PROPERTIES, shouldAnimate); |
| return true; |
| } |
| return false; |
| } |
| |
| protected void setBackgroundTop(int backgroundTop) { |
| if (mBackgroundTop != backgroundTop) { |
| mBackgroundTop = backgroundTop; |
| invalidateOutline(); |
| } |
| } |
| |
| private void setTopRoundnessInternal(float topRoundness) { |
| mCurrentTopRoundness = topRoundness; |
| applyRoundness(); |
| } |
| |
| private void setBottomRoundnessInternal(float bottomRoundness) { |
| mCurrentBottomRoundness = bottomRoundness; |
| applyRoundness(); |
| } |
| |
| public void onDensityOrFontScaleChanged() { |
| initDimens(); |
| applyRoundness(); |
| } |
| |
| @Override |
| public void setActualHeight(int actualHeight, boolean notifyListeners) { |
| int previousHeight = getActualHeight(); |
| super.setActualHeight(actualHeight, notifyListeners); |
| if (previousHeight != actualHeight) { |
| applyRoundness(); |
| } |
| } |
| |
| @Override |
| public void setClipTopAmount(int clipTopAmount) { |
| int previousAmount = getClipTopAmount(); |
| super.setClipTopAmount(clipTopAmount); |
| if (previousAmount != clipTopAmount) { |
| applyRoundness(); |
| } |
| } |
| |
| @Override |
| public void setClipBottomAmount(int clipBottomAmount) { |
| int previousAmount = getClipBottomAmount(); |
| super.setClipBottomAmount(clipBottomAmount); |
| if (previousAmount != clipBottomAmount) { |
| applyRoundness(); |
| } |
| } |
| |
| protected void setOutlineAlpha(float alpha) { |
| if (alpha != mOutlineAlpha) { |
| mOutlineAlpha = alpha; |
| applyRoundness(); |
| } |
| } |
| |
| @Override |
| public float getOutlineAlpha() { |
| return mOutlineAlpha; |
| } |
| |
| protected void setOutlineRect(RectF rect) { |
| if (rect != null) { |
| setOutlineRect(rect.left, rect.top, rect.right, rect.bottom); |
| } else { |
| mCustomOutline = false; |
| applyRoundness(); |
| } |
| } |
| |
| /** |
| * Set the dismiss behavior of the view. |
| * @param usingRowTranslationX {@code true} if the view should translate using regular |
| * translationX, otherwise the contents will be |
| * translated. |
| */ |
| public void setDismissUsingRowTranslationX(boolean usingRowTranslationX) { |
| mDismissUsingRowTranslationX = usingRowTranslationX; |
| } |
| |
| @Override |
| public int getOutlineTranslation() { |
| if (mCustomOutline) { |
| return mOutlineRect.left; |
| } |
| if (mDismissUsingRowTranslationX) { |
| return 0; |
| } |
| return (int) getTranslation(); |
| } |
| |
| public void updateOutline() { |
| if (mCustomOutline) { |
| return; |
| } |
| boolean hasOutline = needsOutline(); |
| setOutlineProvider(hasOutline ? mProvider : null); |
| } |
| |
| /** |
| * @return Whether the view currently needs an outline. This is usually {@code false} in case |
| * it doesn't have a background. |
| */ |
| protected boolean needsOutline() { |
| if (isChildInGroup()) { |
| return isGroupExpanded() && !isGroupExpansionChanging(); |
| } else if (isSummaryWithChildren()) { |
| return !isGroupExpanded() || isGroupExpansionChanging(); |
| } |
| return true; |
| } |
| |
| public boolean isOutlineShowing() { |
| ViewOutlineProvider op = getOutlineProvider(); |
| return op != null; |
| } |
| |
| protected void setOutlineRect(float left, float top, float right, float bottom) { |
| mCustomOutline = true; |
| |
| mOutlineRect.set((int) left, (int) top, (int) right, (int) bottom); |
| |
| // Outlines need to be at least 1 dp |
| mOutlineRect.bottom = (int) Math.max(top, mOutlineRect.bottom); |
| mOutlineRect.right = (int) Math.max(left, mOutlineRect.right); |
| applyRoundness(); |
| } |
| |
| public Path getCustomClipPath(View child) { |
| return null; |
| } |
| } |