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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.messaging.ui.conversationlist;
     17 
     18 import android.app.Activity;
     19 import android.app.AlertDialog;
     20 import android.app.AlertDialog.Builder;
     21 import android.app.Dialog;
     22 import android.app.DialogFragment;
     23 import android.content.DialogInterface;
     24 import android.content.DialogInterface.OnClickListener;
     25 import android.database.Cursor;
     26 import android.os.Bundle;
     27 import android.support.v7.widget.LinearLayoutManager;
     28 import android.support.v7.widget.RecyclerView;
     29 import android.view.LayoutInflater;
     30 import android.view.View;
     31 import android.view.ViewGroup;
     32 
     33 import com.android.messaging.R;
     34 import com.android.messaging.datamodel.binding.Binding;
     35 import com.android.messaging.datamodel.binding.BindingBase;
     36 import com.android.messaging.datamodel.data.ConversationListData;
     37 import com.android.messaging.datamodel.data.ConversationListItemData;
     38 import com.android.messaging.datamodel.data.ConversationListData.ConversationListDataListener;
     39 import com.android.messaging.ui.ListEmptyView;
     40 import com.android.messaging.datamodel.DataModel;
     41 
     42 /**
     43  * Allow user to pick conversation to which an incoming attachment will be shared.
     44  */
     45 public class ShareIntentFragment extends DialogFragment implements ConversationListDataListener,
     46         ShareIntentAdapter.HostInterface {
     47     public static final String HIDE_NEW_CONVERSATION_BUTTON_KEY = "hide_conv_button_key";
     48 
     49     public interface HostInterface {
     50         public void onConversationClick(final ConversationListItemData conversationListItemData);
     51         public void onCreateConversationClick();
     52     }
     53 
     54     private final Binding<ConversationListData> mListBinding = BindingBase.createBinding(this);
     55     private RecyclerView mRecyclerView;
     56     private ListEmptyView mEmptyListMessageView;
     57     private ShareIntentAdapter mAdapter;
     58     private HostInterface mHost;
     59     private boolean mDismissed;
     60 
     61     /**
     62      * {@inheritDoc} from Fragment
     63      */
     64     @Override
     65     public Dialog onCreateDialog(final Bundle bundle) {
     66         final Activity activity = getActivity();
     67         final LayoutInflater inflater = activity.getLayoutInflater();
     68         View view = inflater.inflate(R.layout.share_intent_conversation_list_view, null);
     69         mEmptyListMessageView = (ListEmptyView) view.findViewById(R.id.no_conversations_view);
     70         mEmptyListMessageView.setImageHint(R.drawable.ic_oobe_conv_list);
     71         // The default behavior for default layout param generation by LinearLayoutManager is to
     72         // provide width and height of WRAP_CONTENT, but this is not desirable for
     73         // ShareIntentFragment; the view in each row should be a width of MATCH_PARENT so that
     74         // the entire row is tappable.
     75         final LinearLayoutManager manager = new LinearLayoutManager(activity) {
     76             @Override
     77             public RecyclerView.LayoutParams generateDefaultLayoutParams() {
     78                 return new RecyclerView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
     79                         ViewGroup.LayoutParams.WRAP_CONTENT);
     80             }
     81         };
     82         mListBinding.getData().init(getLoaderManager(), mListBinding);
     83         mAdapter = new ShareIntentAdapter(activity, null, this);
     84         mRecyclerView = (RecyclerView) view.findViewById(android.R.id.list);
     85         mRecyclerView.setLayoutManager(manager);
     86         mRecyclerView.setHasFixedSize(true);
     87         mRecyclerView.setAdapter(mAdapter);
     88         final Builder dialogBuilder = new AlertDialog.Builder(activity)
     89                 .setView(view)
     90                 .setTitle(R.string.share_intent_activity_label);
     91 
     92         final Bundle arguments = getArguments();
     93         if (arguments == null || !arguments.getBoolean(HIDE_NEW_CONVERSATION_BUTTON_KEY)) {
     94             dialogBuilder.setPositiveButton(R.string.share_new_message, new OnClickListener() {
     95                         @Override
     96                     public void onClick(DialogInterface dialog, int which) {
     97                             mDismissed = true;
     98                             mHost.onCreateConversationClick();
     99                     }
    100                 });
    101         }
    102         return dialogBuilder.setNegativeButton(R.string.share_cancel, null)
    103                 .create();
    104     }
    105 
    106     @Override
    107     public void onDismiss(DialogInterface dialog) {
    108         if (!mDismissed) {
    109             final Activity activity = getActivity();
    110             if (activity != null) {
    111                 activity.finish();
    112             }
    113         }
    114     }
    115 
    116     /**
    117      * {@inheritDoc} from Fragment
    118      */
    119     @Override
    120     public void onDestroy() {
    121         super.onDestroy();
    122         mListBinding.unbind();
    123     }
    124 
    125     @Override
    126     public void onAttach(final Activity activity) {
    127         super.onAttach(activity);
    128         if (activity instanceof HostInterface) {
    129             mHost = (HostInterface) activity;
    130         }
    131         mListBinding.bind(DataModel.get().createConversationListData(activity, this, false));
    132     }
    133 
    134     @Override
    135     public void onConversationListCursorUpdated(final ConversationListData data,
    136             final Cursor cursor) {
    137         mListBinding.ensureBound(data);
    138         mAdapter.swapCursor(cursor);
    139         updateEmptyListUi(cursor == null || cursor.getCount() == 0);
    140     }
    141 
    142     /**
    143      * {@inheritDoc} from SharIntentItemView.HostInterface
    144      */
    145     @Override
    146     public void onConversationClicked(final ConversationListItemData conversationListItemData) {
    147         mHost.onConversationClick(conversationListItemData);
    148     }
    149 
    150     // Show and hide empty list UI as needed with appropriate text based on view specifics
    151     private void updateEmptyListUi(final boolean isEmpty) {
    152         if (isEmpty) {
    153             mEmptyListMessageView.setTextHint(R.string.conversation_list_empty_text);
    154             mEmptyListMessageView.setVisibility(View.VISIBLE);
    155         } else {
    156             mEmptyListMessageView.setVisibility(View.GONE);
    157         }
    158     }
    159 
    160     @Override
    161     public void setBlockedParticipantsAvailable(boolean blockedAvailable) {
    162     }
    163 }
    164