diff options
Diffstat (limited to 'java/com/android/dialer/app/calllog/CallLogAlertManager.java')
-rw-r--r-- | java/com/android/dialer/app/calllog/CallLogAlertManager.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/java/com/android/dialer/app/calllog/CallLogAlertManager.java b/java/com/android/dialer/app/calllog/CallLogAlertManager.java new file mode 100644 index 000000000..40b30f001 --- /dev/null +++ b/java/com/android/dialer/app/calllog/CallLogAlertManager.java @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2016 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.dialer.app.calllog; + +import android.support.v7.widget.RecyclerView; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import com.android.dialer.app.R; +import com.android.dialer.app.alert.AlertManager; +import com.android.dialer.common.Assert; + +/** Manages "alerts" to be shown at the top of an call log to gain the user's attention. */ +public class CallLogAlertManager implements AlertManager { + + private final CallLogAdapter adapter; + private final View view; + private final LayoutInflater inflater; + private final ViewGroup parent; + private final ViewGroup container; + + public CallLogAlertManager(CallLogAdapter adapter, LayoutInflater inflater, ViewGroup parent) { + this.adapter = adapter; + this.inflater = inflater; + this.parent = parent; + view = inflater.inflate(R.layout.call_log_alert_item, parent, false); + container = (ViewGroup) view.findViewById(R.id.container); + } + + @Override + public View inflate(int layoutId) { + return inflater.inflate(layoutId, container, false); + } + + public RecyclerView.ViewHolder createViewHolder(ViewGroup parent) { + Assert.checkArgument( + parent == this.parent, + "createViewHolder should be called with the same parent in constructor"); + return new AlertViewHolder(view); + } + + public boolean isEmpty() { + return container.getChildCount() == 0; + } + + public boolean contains(View view) { + return container.indexOfChild(view) != -1; + } + + @Override + public void clear() { + container.removeAllViews(); + adapter.notifyItemRemoved(CallLogAdapter.ALERT_POSITION); + } + + @Override + public void add(View view) { + if (contains(view)) { + return; + } + container.addView(view); + if (container.getChildCount() == 1) { + // Was empty before + adapter.notifyItemInserted(CallLogAdapter.ALERT_POSITION); + } + } + + /** + * Does nothing. The view this ViewHolder show is directly managed by {@link CallLogAlertManager} + */ + private static class AlertViewHolder extends RecyclerView.ViewHolder { + private AlertViewHolder(View view) { + super(view); + } + } +} |