| /* |
| * 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; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Outline; |
| 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; |
| |
| /** |
| * Like {@link ExpandableView}, but setting an outline for the height and clipping. |
| */ |
| public abstract class ExpandableOutlineView extends ExpandableView { |
| |
| private final Rect mOutlineRect = new Rect(); |
| private boolean mCustomOutline; |
| private float mOutlineAlpha = -1f; |
| private float mOutlineRadius; |
| |
| /** |
| * {@code true} 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 mShouldTranslateContents; |
| |
| private final ViewOutlineProvider mProvider = new ViewOutlineProvider() { |
| @Override |
| public void getOutline(View view, Outline outline) { |
| int translation = mShouldTranslateContents ? (int) getTranslation() : 0; |
| if (!mCustomOutline) { |
| outline.setRoundRect(translation, |
| mClipTopAmount, |
| getWidth() + translation, |
| Math.max(getActualHeight() - mClipBottomAmount, mClipTopAmount), |
| mOutlineRadius); |
| } else { |
| outline.setRoundRect(mOutlineRect, mOutlineRadius); |
| } |
| outline.setAlpha(mOutlineAlpha); |
| } |
| }; |
| |
| public ExpandableOutlineView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| setOutlineProvider(mProvider); |
| initDimens(); |
| } |
| |
| private void initDimens() { |
| Resources res = getResources(); |
| mShouldTranslateContents = |
| res.getBoolean(R.bool.config_translateNotificationContentsOnSwipe); |
| mOutlineRadius = res.getDimension(R.dimen.notification_shadow_radius); |
| setClipToOutline(res.getBoolean(R.bool.config_clipNotificationsToOutline)); |
| } |
| |
| public void onDensityOrFontScaleChanged() { |
| initDimens(); |
| invalidateOutline(); |
| } |
| |
| @Override |
| public void setActualHeight(int actualHeight, boolean notifyListeners) { |
| super.setActualHeight(actualHeight, notifyListeners); |
| invalidateOutline(); |
| } |
| |
| @Override |
| public void setClipTopAmount(int clipTopAmount) { |
| super.setClipTopAmount(clipTopAmount); |
| invalidateOutline(); |
| } |
| |
| @Override |
| public void setClipBottomAmount(int clipBottomAmount) { |
| super.setClipBottomAmount(clipBottomAmount); |
| invalidateOutline(); |
| } |
| |
| protected void setOutlineAlpha(float alpha) { |
| if (alpha != mOutlineAlpha) { |
| mOutlineAlpha = alpha; |
| invalidateOutline(); |
| } |
| } |
| |
| @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; |
| setClipToOutline(false); |
| invalidateOutline(); |
| } |
| } |
| |
| @Override |
| public int getOutlineTranslation() { |
| return mCustomOutline ? mOutlineRect.left : (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; |
| setClipToOutline(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); |
| |
| invalidateOutline(); |
| } |
| |
| } |