91 lines
2.7 KiB
Java
91 lines
2.7 KiB
Java
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.dialer.app.calllog;
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import android.support.v7.widget.RecyclerView;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import com.android.dialer.app.R;
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import com.android.dialer.app.alert.AlertManager;
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import com.android.dialer.common.Assert;
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/** Manages "alerts" to be shown at the top of an call log to gain the user's attention. */
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public class CallLogAlertManager implements AlertManager {
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private final CallLogAdapter adapter;
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private final View view;
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private final LayoutInflater inflater;
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private final ViewGroup parent;
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private final ViewGroup container;
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public CallLogAlertManager(CallLogAdapter adapter, LayoutInflater inflater, ViewGroup parent) {
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this.adapter = adapter;
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this.inflater = inflater;
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this.parent = parent;
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view = inflater.inflate(R.layout.call_log_alert_item, parent, false);
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container = (ViewGroup) view.findViewById(R.id.container);
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}
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@Override
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public View inflate(int layoutId) {
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return inflater.inflate(layoutId, container, false);
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}
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public RecyclerView.ViewHolder createViewHolder(ViewGroup parent) {
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Assert.checkArgument(
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parent == this.parent,
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"createViewHolder should be called with the same parent in constructor");
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return new AlertViewHolder(view);
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}
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public boolean isEmpty() {
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return container.getChildCount() == 0;
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}
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public boolean contains(View view) {
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return container.indexOfChild(view) != -1;
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}
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@Override
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public void clear() {
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container.removeAllViews();
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adapter.notifyItemRemoved(CallLogAdapter.ALERT_POSITION);
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}
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@Override
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public void add(View view) {
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if (contains(view)) {
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return;
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}
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container.addView(view);
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if (container.getChildCount() == 1) {
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// Was empty before
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adapter.notifyItemInserted(CallLogAdapter.ALERT_POSITION);
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}
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}
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/**
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* Does nothing. The view this ViewHolder show is directly managed by {@link CallLogAlertManager}
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*/
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private static class AlertViewHolder extends RecyclerView.ViewHolder {
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private AlertViewHolder(View view) {
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super(view);
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}
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}
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}
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