1 /* 2 * Copyright (C) 2009 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.calendar; 18 19 import android.content.ContentUris; 20 import android.content.Intent; 21 import android.graphics.Rect; 22 import android.net.Uri; 23 import android.provider.Calendar; 24 import android.provider.Calendar.Events; 25 import android.text.format.Time; 26 import android.util.Log; 27 import android.view.View; 28 import android.widget.AdapterView; 29 import android.widget.ListView; 30 import android.widget.TextView; 31 import android.widget.AdapterView.OnItemClickListener; 32 33 import com.android.calendar.AgendaAdapter.ViewHolder; 34 import com.android.calendar.AgendaWindowAdapter.EventInfo; 35 36 public class AgendaListView extends ListView implements OnItemClickListener { 37 38 private static final String TAG = "AgendaListView"; 39 private static final boolean DEBUG = false; 40 41 private AgendaWindowAdapter mWindowAdapter; 42 43 private AgendaActivity mAgendaActivity; 44 private DeleteEventHelper mDeleteEventHelper; 45 46 public AgendaListView(AgendaActivity agendaActivity) { 47 super(agendaActivity, null); 48 mAgendaActivity = agendaActivity; 49 50 setOnItemClickListener(this); 51 setChoiceMode(ListView.CHOICE_MODE_SINGLE); 52 setVerticalScrollBarEnabled(false); 53 mWindowAdapter = new AgendaWindowAdapter(agendaActivity, this); 54 setAdapter(mWindowAdapter); 55 mDeleteEventHelper = 56 new DeleteEventHelper(agendaActivity, false /* don't exit when done */); 57 } 58 59 @Override protected void onDetachedFromWindow() { 60 super.onDetachedFromWindow(); 61 mWindowAdapter.close(); 62 } 63 64 // Implementation of the interface OnItemClickListener 65 public void onItemClick(AdapterView<?> a, View v, int position, long id) { 66 if (id != -1) { 67 // Switch to the EventInfo view 68 EventInfo event = mWindowAdapter.getEventByPosition(position); 69 if (event != null) { 70 Uri uri = ContentUris.withAppendedId(Events.CONTENT_URI, event.id); 71 Intent intent = new Intent(Intent.ACTION_VIEW, uri); 72 intent.putExtra(Calendar.EVENT_BEGIN_TIME, event.begin); 73 intent.putExtra(Calendar.EVENT_END_TIME, event.end); 74 mAgendaActivity.startActivity(intent); 75 } 76 } 77 } 78 79 public void goTo(Time time, boolean forced) { 80 mWindowAdapter.refresh(time, forced); 81 } 82 83 public void refresh(boolean forced) { 84 Time time = new Time(); 85 long goToTime = getFirstVisibleTime(); 86 if (goToTime <= 0) { 87 goToTime = System.currentTimeMillis(); 88 } 89 time.set(goToTime); 90 mWindowAdapter.refresh(time, forced); 91 } 92 93 public void deleteSelectedEvent() { 94 int position = getSelectedItemPosition(); 95 EventInfo event = mWindowAdapter.getEventByPosition(position); 96 if (event != null) { 97 mDeleteEventHelper.delete(event.begin, event.end, event.id, -1); 98 } 99 } 100 101 @Override 102 public int getFirstVisiblePosition() { 103 // TODO File bug! 104 // getFirstVisiblePosition doesn't always return the first visible 105 // item. Sometimes, it is above the visible one. 106 // instead. I loop through the viewgroup children and find the first 107 // visible one. BTW, getFirstVisiblePosition() == getChildAt(0). I 108 // am not looping through the entire list. 109 View v = getFirstVisibleView(); 110 if (v != null) { 111 if (DEBUG) { 112 Log.v(TAG, "getFirstVisiblePosition: " + AgendaWindowAdapter.getViewTitle(v)); 113 } 114 return getPositionForView(v); 115 } 116 return -1; 117 } 118 119 public View getFirstVisibleView() { 120 Rect r = new Rect(); 121 int childCount = getChildCount(); 122 for (int i = 0; i < childCount; ++i) { 123 View listItem = getChildAt(i); 124 listItem.getLocalVisibleRect(r); 125 if (r.top >= 0) { // if visible 126 return listItem; 127 } 128 } 129 return null; 130 } 131 132 public long getSelectedTime() { 133 int position = getSelectedItemPosition(); 134 if (position >= 0) { 135 EventInfo event = mWindowAdapter.getEventByPosition(position); 136 if (event != null) { 137 return event.begin; 138 } 139 } 140 return getFirstVisibleTime(); 141 } 142 143 public long getFirstVisibleTime() { 144 int position = getFirstVisiblePosition(); 145 if (DEBUG) { 146 Log.v(TAG, "getFirstVisiblePosition = " + position); 147 } 148 149 EventInfo event = mWindowAdapter.getEventByPosition(position); 150 if (event != null) { 151 return event.begin; 152 } 153 return 0; 154 } 155 156 // Move the currently selected or visible focus down by offset amount. 157 // offset could be negative. 158 public void shiftSelection(int offset) { 159 shiftPosition(offset); 160 int position = getSelectedItemPosition(); 161 if (position != INVALID_POSITION) { 162 setSelectionFromTop(position + offset, 0); 163 } 164 } 165 166 private void shiftPosition(int offset) { 167 if (DEBUG) { 168 Log.v(TAG, "Shifting position "+ offset); 169 } 170 171 View firstVisibleItem = getFirstVisibleView(); 172 173 if (firstVisibleItem != null) { 174 Rect r = new Rect(); 175 firstVisibleItem.getLocalVisibleRect(r); 176 // if r.top is < 0, getChildAt(0) and getFirstVisiblePosition() is 177 // returning an item above the first visible item. 178 int position = getPositionForView(firstVisibleItem); 179 setSelectionFromTop(position + offset, r.top > 0 ? -r.top : r.top); 180 if (DEBUG) { 181 if (firstVisibleItem.getTag() instanceof AgendaAdapter.ViewHolder) { 182 ViewHolder viewHolder = (AgendaAdapter.ViewHolder)firstVisibleItem.getTag(); 183 Log.v(TAG, "Shifting from " + position + " by " + offset + ". Title " 184 + viewHolder.title.getText()); 185 } else if (firstVisibleItem.getTag() instanceof AgendaByDayAdapter.ViewHolder) { 186 AgendaByDayAdapter.ViewHolder viewHolder = 187 (AgendaByDayAdapter.ViewHolder)firstVisibleItem.getTag(); 188 Log.v(TAG, "Shifting from " + position + " by " + offset + ". Date " 189 + viewHolder.dateView.getText()); 190 } else if (firstVisibleItem instanceof TextView) { 191 Log.v(TAG, "Shifting: Looking at header here. " + getSelectedItemPosition()); 192 } 193 } 194 } else if (getSelectedItemPosition() >= 0) { 195 if (DEBUG) { 196 Log.v(TAG, "Shifting selection from " + getSelectedItemPosition() + " by " + offset); 197 } 198 setSelection(getSelectedItemPosition() + offset); 199 } 200 } 201 202 public void setHideDeclinedEvents(boolean hideDeclined) { 203 mWindowAdapter.setHideDeclinedEvents(hideDeclined); 204 } 205 206 public void onResume() { 207 mWindowAdapter.notifyDataSetChanged(); 208 } 209 public void onPause() { 210 mWindowAdapter.notifyDataSetInvalidated(); 211 } 212 } 213
