| /* |
| * Copyright (C) 2019 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; |
| |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.BaseAdapter; |
| import android.widget.LinearLayout; |
| |
| import com.android.systemui.util.leak.RotationUtils; |
| |
| /** |
| * Layout class representing the Global Actions menu which appears when the power button is held. |
| */ |
| public abstract class MultiListLayout extends LinearLayout { |
| protected boolean mHasOutsideTouch; |
| protected MultiListAdapter mAdapter; |
| protected int mRotation; |
| protected RotationListener mRotationListener; |
| |
| public MultiListLayout(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mRotation = RotationUtils.getRotation(context); |
| } |
| |
| protected abstract ViewGroup getSeparatedView(); |
| |
| protected abstract ViewGroup getListView(); |
| |
| /** |
| * Sets the divided view, which may have a differently-colored background. |
| */ |
| public abstract void setDivisionView(View v); |
| |
| /** |
| * Set the view accessibility delegate for the list view container. |
| */ |
| public void setListViewAccessibilityDelegate(View.AccessibilityDelegate delegate) { |
| getListView().setAccessibilityDelegate(delegate); |
| } |
| |
| protected void setSeparatedViewVisibility(boolean visible) { |
| ViewGroup separatedView = getSeparatedView(); |
| if (separatedView != null) { |
| separatedView.setVisibility(visible ? View.VISIBLE : View.GONE); |
| } |
| } |
| |
| /** |
| * Sets the adapter used to inflate items. |
| */ |
| public void setAdapter(MultiListAdapter adapter) { |
| mAdapter = adapter; |
| } |
| |
| /** |
| * Sets this layout to respond to an outside touch listener. |
| */ |
| public void setOutsideTouchListener(OnClickListener onClickListener) { |
| mHasOutsideTouch = true; |
| requestLayout(); |
| setOnClickListener(onClickListener); |
| setClickable(true); |
| setFocusable(true); |
| } |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| int newRotation = RotationUtils.getRotation(mContext); |
| if (newRotation != mRotation) { |
| rotate(mRotation, newRotation); |
| mRotation = newRotation; |
| } |
| } |
| |
| protected void rotate(int from, int to) { |
| if (mRotationListener != null) { |
| mRotationListener.onRotate(from, to); |
| } |
| } |
| |
| /** |
| * Update the list of items in both the separated and list views. |
| * For this to work, mAdapter must already have been set. |
| */ |
| public void updateList() { |
| if (mAdapter == null) { |
| throw new IllegalStateException("mAdapter must be set before calling updateList"); |
| } |
| onUpdateList(); |
| } |
| |
| protected void removeAllSeparatedViews() { |
| ViewGroup separated = getSeparatedView(); |
| if (separated != null) { |
| separated.removeAllViews(); |
| } |
| } |
| |
| protected void removeAllListViews() { |
| ViewGroup list = getListView(); |
| if (list != null) { |
| list.removeAllViews(); |
| } |
| } |
| |
| protected void removeAllItems() { |
| removeAllListViews(); |
| removeAllSeparatedViews(); |
| } |
| |
| protected void onUpdateList() { |
| removeAllItems(); |
| setSeparatedViewVisibility(mAdapter.hasSeparatedItems()); |
| } |
| |
| public void setRotationListener(RotationListener listener) { |
| mRotationListener = listener; |
| } |
| |
| /** |
| * Retrieve the MultiListLayout associated with the given view. |
| */ |
| public static MultiListLayout get(View v) { |
| if (v instanceof MultiListLayout) return (MultiListLayout) v; |
| if (v.getParent() instanceof View) { |
| return get((View) v.getParent()); |
| } |
| return null; |
| } |
| |
| /** |
| * Interface to provide callbacks which trigger when this list detects a rotation. |
| */ |
| public interface RotationListener { |
| void onRotate(int from, int to); |
| } |
| |
| /** |
| * Get the X offset in pixels for use when animating the view onto or off of the screen. |
| */ |
| public abstract float getAnimationOffsetX(); |
| |
| /** |
| * Get the Y offset in pixels for use when animating the view onto or off of the screen. |
| */ |
| public abstract float getAnimationOffsetY(); |
| |
| /** |
| * Adapter class for converting items into child views for MultiListLayout and handling |
| * callbacks for input events. |
| */ |
| public abstract static class MultiListAdapter extends BaseAdapter { |
| /** |
| * Counts the number of items to be rendered in the separated view. |
| */ |
| public abstract int countSeparatedItems(); |
| |
| /** |
| * Counts the number of items be rendered in the list view. |
| */ |
| public abstract int countListItems(); |
| |
| /** |
| * Callback to run when an individual item is clicked or pressed. |
| * @param position The index of the item which was clicked. |
| */ |
| public abstract void onClickItem(int position); |
| |
| /** |
| * Callback to run when an individual item is long-clicked or long-pressed. |
| * @param position The index of the item which was long-clicked. |
| * @return True if the long-click was handled, false otherwise. |
| */ |
| public abstract boolean onLongClickItem(int position); |
| |
| /** |
| * Determines whether the mAdapter contains any separated items, used to determine whether |
| * or not to hide the separated list from view. |
| */ |
| public boolean hasSeparatedItems() { |
| return countSeparatedItems() > 0; |
| } |
| |
| /** |
| * Determines whether the item at the given index should be rendered in the separarted view. |
| * @param position The index of the item. |
| */ |
| public abstract boolean shouldBeSeparated(int position); |
| } |
| } |