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      1 /*
      2  * Copyright (C) 2016 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 
     17 package com.android.dialer.callcomposer;
     18 
     19 import android.content.Context;
     20 import android.database.Cursor;
     21 import android.database.MatrixCursor;
     22 import android.database.MergeCursor;
     23 import android.support.annotation.NonNull;
     24 import android.view.LayoutInflater;
     25 import android.view.View;
     26 import android.view.View.OnClickListener;
     27 import android.view.ViewGroup;
     28 import android.widget.CursorAdapter;
     29 import com.android.dialer.common.Assert;
     30 import com.android.dialer.common.LogUtil;
     31 import java.util.ArrayList;
     32 import java.util.List;
     33 
     34 /** Bridges between the image cursor loaded by GalleryBoundCursorLoader and the GalleryGridView. */
     35 public class GalleryGridAdapter extends CursorAdapter {
     36 
     37   @NonNull private final OnClickListener onClickListener;
     38   @NonNull private final List<GalleryGridItemView> views = new ArrayList<>();
     39   @NonNull private final Context context;
     40 
     41   private GalleryGridItemData selectedData;
     42 
     43   public GalleryGridAdapter(
     44       @NonNull Context context, Cursor cursor, @NonNull OnClickListener onClickListener) {
     45     super(context, cursor, 0);
     46     this.onClickListener = Assert.isNotNull(onClickListener);
     47     this.context = Assert.isNotNull(context);
     48   }
     49 
     50   @Override
     51   public int getCount() {
     52     // Add one for the header.
     53     return super.getCount() + 1;
     54   }
     55 
     56   @Override
     57   public View getView(int position, View convertView, ViewGroup parent) {
     58     // At position 0, we want to insert a header. If position == 0, we don't need the cursor.
     59     // If position != 0, then we need to move the cursor to position - 1 to account for the offset
     60     // of the header.
     61     if (position != 0 && !getCursor().moveToPosition(position - 1)) {
     62       Assert.fail("couldn't move cursor to position " + (position - 1));
     63     }
     64     View view;
     65     if (convertView == null) {
     66       view = newView(context, getCursor(), parent);
     67     } else {
     68       view = convertView;
     69     }
     70     bindView(view, context, getCursor(), position);
     71     return view;
     72   }
     73 
     74   private void bindView(View view, Context context, Cursor cursor, int position) {
     75     if (position == 0) {
     76       GalleryGridItemView gridView = (GalleryGridItemView) view;
     77       gridView.showGallery(true);
     78     } else {
     79       bindView(view, context, cursor);
     80     }
     81   }
     82 
     83   @Override
     84   public void bindView(View view, Context context, Cursor cursor) {
     85     GalleryGridItemView gridView = (GalleryGridItemView) view;
     86     gridView.bind(cursor);
     87     gridView.setSelected(gridView.getData().equals(selectedData));
     88   }
     89 
     90   @Override
     91   public View newView(Context context, Cursor cursor, ViewGroup parent) {
     92     GalleryGridItemView view =
     93         (GalleryGridItemView)
     94             LayoutInflater.from(context).inflate(R.layout.gallery_grid_item_view, parent, false);
     95     view.setOnClickListener(onClickListener);
     96     views.add(view);
     97     return view;
     98   }
     99 
    100   public void setSelected(GalleryGridItemData selectedData) {
    101     this.selectedData = selectedData;
    102     for (GalleryGridItemView view : views) {
    103       view.setSelected(view.getData().equals(selectedData));
    104     }
    105   }
    106 
    107   public void insertEntries(@NonNull List<GalleryGridItemData> entries) {
    108     Assert.checkArgument(entries.size() != 0);
    109     LogUtil.i("GalleryGridAdapter.insertRows", "inserting %d rows", entries.size());
    110     MatrixCursor extraRow = new MatrixCursor(GalleryGridItemData.IMAGE_PROJECTION);
    111     for (GalleryGridItemData entry : entries) {
    112       extraRow.addRow(new Object[] {0L, entry.getFilePath(), entry.getMimeType(), ""});
    113     }
    114     extraRow.moveToFirst();
    115     Cursor extendedCursor = new MergeCursor(new Cursor[] {extraRow, getCursor()});
    116     swapCursor(extendedCursor);
    117   }
    118 
    119   public GalleryGridItemData insertEntry(String filePath, String mimeType) {
    120     LogUtil.i("GalleryGridAdapter.insertRow", mimeType + " " + filePath);
    121 
    122     MatrixCursor extraRow = new MatrixCursor(GalleryGridItemData.IMAGE_PROJECTION);
    123     extraRow.addRow(new Object[] {0L, filePath, mimeType, ""});
    124     extraRow.moveToFirst();
    125     Cursor extendedCursor = new MergeCursor(new Cursor[] {extraRow, getCursor()});
    126     swapCursor(extendedCursor);
    127 
    128     return new GalleryGridItemData(extraRow);
    129   }
    130 }
    131