| /* |
| * Copyright (C) 2017 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.keyguard; |
| |
| import android.app.PendingIntent; |
| import android.app.slice.Slice; |
| import android.app.slice.SliceItem; |
| import android.app.slice.SliceQuery; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.graphics.Color; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.util.AttributeSet; |
| import android.widget.LinearLayout; |
| import android.widget.TextView; |
| |
| import com.android.internal.graphics.ColorUtils; |
| import com.android.systemui.R; |
| import com.android.systemui.keyguard.KeyguardSliceProvider; |
| |
| /** |
| * View visible under the clock on the lock screen and AoD. |
| */ |
| public class KeyguardSliceView extends LinearLayout { |
| |
| private final Uri mKeyguardSliceUri; |
| private TextView mTitle; |
| private TextView mText; |
| private Slice mSlice; |
| private PendingIntent mSliceAction; |
| private int mTextColor; |
| private float mDarkAmount = 0; |
| |
| private final ContentObserver mObserver; |
| |
| public KeyguardSliceView(Context context) { |
| this(context, null, 0); |
| } |
| |
| public KeyguardSliceView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public KeyguardSliceView(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| mObserver = new KeyguardSliceObserver(new Handler()); |
| mKeyguardSliceUri = Uri.parse(KeyguardSliceProvider.KEYGUARD_SLICE_URI);; |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mTitle = findViewById(R.id.title); |
| mText = findViewById(R.id.text); |
| mTextColor = mTitle.getCurrentTextColor(); |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| |
| // Set initial content |
| showSlice(Slice.bindSlice(getContext().getContentResolver(), mKeyguardSliceUri)); |
| |
| // Make sure we always have the most current slice |
| getContext().getContentResolver().registerContentObserver(mKeyguardSliceUri, |
| false /* notifyDescendants */, mObserver); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| |
| getContext().getContentResolver().unregisterContentObserver(mObserver); |
| } |
| |
| private void showSlice(Slice slice) { |
| // Items will be wrapped into an action when they have tap targets. |
| SliceItem actionSlice = SliceQuery.find(slice, SliceItem.TYPE_ACTION); |
| if (actionSlice != null) { |
| mSlice = actionSlice.getSlice(); |
| mSliceAction = actionSlice.getAction(); |
| } else { |
| mSlice = slice; |
| mSliceAction = null; |
| } |
| |
| if (mSlice == null) { |
| setVisibility(GONE); |
| return; |
| } |
| |
| SliceItem title = SliceQuery.find(mSlice, SliceItem.TYPE_TEXT, Slice.HINT_TITLE, null); |
| if (title == null) { |
| mTitle.setVisibility(GONE); |
| } else { |
| mTitle.setVisibility(VISIBLE); |
| mTitle.setText(title.getText()); |
| } |
| |
| SliceItem text = SliceQuery.find(mSlice, SliceItem.TYPE_TEXT, null, Slice.HINT_TITLE); |
| if (text == null) { |
| mText.setVisibility(GONE); |
| } else { |
| mText.setVisibility(VISIBLE); |
| mText.setText(text.getText()); |
| } |
| |
| final int visibility = title == null && text == null ? GONE : VISIBLE; |
| if (visibility != getVisibility()) { |
| setVisibility(visibility); |
| } |
| } |
| |
| public void setDark(float darkAmount) { |
| mDarkAmount = darkAmount; |
| updateTextColors(); |
| } |
| |
| public void setTextColor(int textColor) { |
| mTextColor = textColor; |
| } |
| |
| private void updateTextColors() { |
| final int blendedColor = ColorUtils.blendARGB(mTextColor, Color.WHITE, mDarkAmount); |
| mTitle.setTextColor(blendedColor); |
| mText.setTextColor(blendedColor); |
| } |
| |
| private class KeyguardSliceObserver extends ContentObserver { |
| KeyguardSliceObserver(Handler handler) { |
| super(handler); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| this.onChange(selfChange, null); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| showSlice(Slice.bindSlice(getContext().getContentResolver(), mKeyguardSliceUri)); |
| } |
| } |
| } |