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/*
* 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.globalactions;
import android.content.Context;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import com.android.internal.annotations.VisibleForTesting;
import com.android.systemui.HardwareBgDrawable;
import com.android.systemui.MultiListLayout;
import com.android.systemui.R;
import com.android.systemui.util.leak.RotationUtils;
import java.util.Locale;
/**
* Grid-based implementation of the button layout created by the global actions dialog.
*/
public abstract class GlobalActionsLayout extends MultiListLayout {
boolean mBackgroundsSet;
public GlobalActionsLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
private void setBackgrounds() {
ViewGroup listView = getListView();
int listBgColor = getResources().getColor(
R.color.global_actions_grid_background, null);
HardwareBgDrawable listBackground = getBackgroundDrawable(listBgColor);
if (listBackground != null) {
listView.setBackground(listBackground);
}
ViewGroup separatedView = getSeparatedView();
if (separatedView != null) {
int separatedBgColor = getResources().getColor(
R.color.global_actions_separated_background, null);
HardwareBgDrawable separatedBackground = getBackgroundDrawable(separatedBgColor);
if (separatedBackground != null) {
getSeparatedView().setBackground(separatedBackground);
}
}
}
protected HardwareBgDrawable getBackgroundDrawable(int backgroundColor) {
HardwareBgDrawable background = new HardwareBgDrawable(true, true, getContext());
background.setTint(backgroundColor);
return background;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
// backgrounds set only once, the first time onMeasure is called after inflation
if (getListView() != null && !mBackgroundsSet) {
setBackgrounds();
mBackgroundsSet = true;
}
}
protected void addToListView(View v, boolean reverse) {
if (reverse) {
getListView().addView(v, 0);
} else {
getListView().addView(v);
}
}
protected void addToSeparatedView(View v, boolean reverse) {
ViewGroup separated = getSeparatedView();
if (separated != null) {
if (reverse) {
separated.addView(v, 0);
} else {
separated.addView(v);
}
} else {
// if no separated view exists, just use the list view
addToListView(v, reverse);
}
}
@VisibleForTesting
protected int getCurrentLayoutDirection() {
return TextUtils.getLayoutDirectionFromLocale(Locale.getDefault());
}
@VisibleForTesting
protected int getCurrentRotation() {
return RotationUtils.getRotation(mContext);
}
/**
* Determines whether the ListGridLayout should reverse the ordering of items within sublists.
* Used for RTL languages to ensure that items appear in the same positions, without having to
* override layoutDirection, which breaks Talkback ordering.
*/
protected abstract boolean shouldReverseListItems();
@Override
public void onUpdateList() {
super.onUpdateList();
ViewGroup separatedView = getSeparatedView();
ViewGroup listView = getListView();
for (int i = 0; i < mAdapter.getCount(); i++) {
// generate the view item
View v;
boolean separated = mAdapter.shouldBeSeparated(i);
if (separated) {
v = mAdapter.getView(i, null, separatedView);
} else {
v = mAdapter.getView(i, null, listView);
}
if (separated) {
addToSeparatedView(v, false);
} else {
addToListView(v, shouldReverseListItems());
}
}
}
@Override
protected ViewGroup getSeparatedView() {
return findViewById(R.id.separated_button);
}
@Override
protected ViewGroup getListView() {
return findViewById(android.R.id.list);
}
protected View getWrapper() {
return getChildAt(0);
}
/**
* Not used in this implementation of the Global Actions Menu, but necessary for some others.
*/
@Override
public void setDivisionView(View v) {
// do nothing
}
}
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