The Tor Browser / file comparison
comparison: mobile/android/base/home/PanelViewAdapter.java
mobile/android/base/home/PanelViewAdapter.java
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| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.home; | |
| 7 | |
| 8 import org.mozilla.gecko.home.HomeConfig.ItemType; | |
| 9 import org.mozilla.gecko.home.HomeConfig.ViewConfig; | |
| 10 import org.mozilla.gecko.home.PanelLayout.FilterManager; | |
| 11 | |
| 12 import org.mozilla.gecko.R; | |
| 13 | |
| 14 import android.content.Context; | |
| 15 import android.database.Cursor; | |
| 16 import android.support.v4.widget.CursorAdapter; | |
| 17 import android.view.View; | |
| 18 import android.view.ViewGroup; | |
| 19 | |
| 20 class PanelViewAdapter extends CursorAdapter { | |
| 21 private static final int VIEW_TYPE_ITEM = 0; | |
| 22 private static final int VIEW_TYPE_BACK = 1; | |
| 23 | |
| 24 private final ViewConfig viewConfig; | |
| 25 private FilterManager filterManager; | |
| 26 private final Context context; | |
| 27 | |
| 28 public PanelViewAdapter(Context context, ViewConfig viewConfig) { | |
| 29 super(context, null, 0); | |
| 30 this.context = context; | |
| 31 this.viewConfig = viewConfig; | |
| 32 } | |
| 33 | |
| 34 public void setFilterManager(FilterManager manager) { | |
| 35 this.filterManager = manager; | |
| 36 } | |
| 37 | |
| 38 @Override | |
| 39 public final int getViewTypeCount() { | |
| 40 return 2; | |
| 41 } | |
| 42 | |
| 43 @Override | |
| 44 public int getCount() { | |
| 45 return super.getCount() + (isShowingBack() ? 1 : 0); | |
| 46 } | |
| 47 | |
| 48 @Override | |
| 49 public int getItemViewType(int position) { | |
| 50 if (isShowingBack() && position == 0) { | |
| 51 return VIEW_TYPE_BACK; | |
| 52 } else { | |
| 53 return VIEW_TYPE_ITEM; | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 @Override | |
| 58 public final View getView(int position, View convertView, ViewGroup parent) { | |
| 59 if (convertView == null) { | |
| 60 convertView = newView(parent.getContext(), position, parent); | |
| 61 } | |
| 62 | |
| 63 bindView(convertView, position); | |
| 64 return convertView; | |
| 65 } | |
| 66 | |
| 67 private View newView(Context context, int position, ViewGroup parent) { | |
| 68 if (getItemViewType(position) == VIEW_TYPE_BACK) { | |
| 69 return new PanelBackItemView(context, viewConfig.getBackImageUrl()); | |
| 70 } else { | |
| 71 return PanelItemView.create(context, viewConfig.getItemType()); | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 private void bindView(View view, int position) { | |
| 76 if (isShowingBack()) { | |
| 77 if (position == 0) { | |
| 78 final PanelBackItemView item = (PanelBackItemView) view; | |
| 79 item.updateFromFilter(filterManager.getPreviousFilter()); | |
| 80 return; | |
| 81 } | |
| 82 | |
| 83 position--; | |
| 84 } | |
| 85 | |
| 86 final Cursor cursor = getCursor(position); | |
| 87 final PanelItemView item = (PanelItemView) view; | |
| 88 item.updateFromCursor(cursor); | |
| 89 } | |
| 90 | |
| 91 private boolean isShowingBack() { | |
| 92 return (filterManager != null ? filterManager.canGoBack() : false); | |
| 93 } | |
| 94 | |
| 95 private final Cursor getCursor(int position) { | |
| 96 final Cursor cursor = getCursor(); | |
| 97 if (cursor == null || !cursor.moveToPosition(position)) { | |
| 98 throw new IllegalStateException("Couldn't move cursor to position " + position); | |
| 99 } | |
| 100 | |
| 101 return cursor; | |
| 102 } | |
| 103 | |
| 104 @Override | |
| 105 public final void bindView(View view, Context context, Cursor cursor) { | |
| 106 // Do nothing. | |
| 107 } | |
| 108 | |
| 109 @Override | |
| 110 public final View newView(Context context, Cursor cursor, ViewGroup parent) { | |
| 111 return null; | |
| 112 } | |
| 113 } |
