| 1 | /* |
| 2 | * Tomdroid |
| 3 | * Tomboy on Android |
| 4 | * http://www.launchpad.net/tomdroid |
| 5 | * |
| 6 | * Copyright 2009, 2010, 2011 Olivier Bilodeau <olivier@bottomlesspit.org> |
| 7 | * Copyright 2009, 2010 Benoit Garret <benoit.garret_launchpad@gadz.org> |
| 8 | * Copyright 2011 Stefan Hammer <j.4@gmx.at> |
| 9 | * |
| 10 | * This file is part of Tomdroid. |
| 11 | * |
| 12 | * Tomdroid is free software: you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation, either version 3 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * Tomdroid is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with Tomdroid. If not, see <http://www.gnu.org/licenses/>. |
| 24 | */ |
| 25 | package org.tomdroid; |
| 26 | |
| 27 | import java.util.regex.Matcher; |
| 28 | import java.util.regex.Pattern; |
| 29 | |
| 30 | import org.tomdroid.ui.Tomdroid; |
| 31 | import org.tomdroid.util.NoteListCursorAdapter; |
| 32 | import org.tomdroid.util.XmlUtils; |
| 33 | |
| 34 | import android.app.Activity; |
| 35 | import android.content.ContentResolver; |
| 36 | import android.content.ContentValues; |
| 37 | import android.database.Cursor; |
| 38 | import android.net.Uri; |
| 39 | import android.util.Log; |
| 40 | import android.widget.ListAdapter; |
| 41 | |
| 42 | public class NoteManager { |
| 43 | |
| 44 | public static final String[] FULL_PROJECTION = { Note.ID, Note.TITLE, Note.FILE, Note.NOTE_CONTENT, Note.MODIFIED_DATE }; |
| 45 | public static final String[] LIST_PROJECTION = { Note.ID, Note.TITLE, Note.MODIFIED_DATE }; |
| 46 | public static final String[] TITLE_PROJECTION = { Note.TITLE }; |
| 47 | public static final String[] GUID_PROJECTION = { Note.ID, Note.GUID }; |
| 48 | public static final String[] ID_PROJECTION = { Note.ID }; |
| 49 | public static final String[] EMPTY_PROJECTION = {}; |
| 50 | |
| 51 | // static properties |
| 52 | private static final String TAG = "NoteManager"; |
| 53 | |
| 54 | // gets a note from the content provider |
| 55 | public static Note getNote(Activity activity, Uri uri) { |
| 56 | |
| 57 | Note note = null; |
| 58 | |
| 59 | // can we find a matching note? |
| 60 | Cursor cursor = activity.managedQuery(uri, FULL_PROJECTION, null, null, null); |
| 61 | // cursor must not be null and must return more than 0 entry |
| 62 | if (!(cursor == null || cursor.getCount() == 0)) { |
| 63 | |
| 64 | // create the note from the cursor |
| 65 | cursor.moveToFirst(); |
| 66 | String noteContent = cursor.getString(cursor.getColumnIndexOrThrow(Note.NOTE_CONTENT)); |
| 67 | String noteTitle = cursor.getString(cursor.getColumnIndexOrThrow(Note.TITLE)); |
| 68 | |
| 69 | note = new Note(); |
| 70 | note.setTitle(noteTitle); |
| 71 | note.setXmlContent(stripTitleFromContent(noteContent, noteTitle)); |
| 72 | } |
| 73 | |
| 74 | return note; |
| 75 | } |
| 76 | |
| 77 | // puts a note in the content provider |
| 78 | public static void putNote(Activity activity, Note note) { |
| 79 | |
| 80 | // verify if the note is already in the content provider |
| 81 | |
| 82 | // TODO make the query prettier (use querybuilder) |
| 83 | Uri notes = Tomdroid.CONTENT_URI; |
| 84 | String[] whereArgs = new String[1]; |
| 85 | whereArgs[0] = note.getGuid().toString(); |
| 86 | |
| 87 | // The note identifier is the guid |
| 88 | ContentResolver cr = activity.getContentResolver(); |
| 89 | Cursor managedCursor = cr.query(notes, |
| 90 | EMPTY_PROJECTION, |
| 91 | Note.GUID + "= ?", |
| 92 | whereArgs, |
| 93 | null); |
| 94 | activity.startManagingCursor(managedCursor); |
| 95 | |
| 96 | // Preparing the values to be either inserted or updated |
| 97 | // depending on the result of the previous query |
| 98 | ContentValues values = new ContentValues(); |
| 99 | values.put(Note.TITLE, note.getTitle()); |
| 100 | values.put(Note.FILE, note.getFileName()); |
| 101 | values.put(Note.GUID, note.getGuid().toString()); |
| 102 | // Notice that we store the date in UTC because sqlite doesn't handle RFC3339 timezone information |
| 103 | values.put(Note.MODIFIED_DATE, note.getLastChangeDate().format3339(false)); |
| 104 | values.put(Note.NOTE_CONTENT, note.getXmlContent()); |
| 105 | values.put(Note.TAGS, note.getTags()); |
| 106 | |
| 107 | if (managedCursor.getCount() == 0) { |
| 108 | |
| 109 | // This note is not in the database yet we need to insert it |
| 110 | if (Tomdroid.LOGGING_ENABLED) Log.v(TAG,"A new note has been detected (not yet in db)"); |
| 111 | |
| 112 | Uri uri = cr.insert(Tomdroid.CONTENT_URI, values); |
| 113 | |
| 114 | if (Tomdroid.LOGGING_ENABLED) Log.v(TAG,"Note inserted in content provider. ID: "+uri+" TITLE:"+note.getTitle()+" GUID:"+note.getGuid()); |
| 115 | } else { |
| 116 | |
| 117 | // Overwrite the previous note if it exists |
| 118 | cr.update(Tomdroid.CONTENT_URI, values, Note.GUID+" = ?", whereArgs); |
| 119 | |
| 120 | if (Tomdroid.LOGGING_ENABLED) Log.v(TAG,"Note updated in content provider. TITLE:"+note.getTitle()+" GUID:"+note.getGuid()); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | public static boolean deleteNote(Activity activity, int id) |
| 125 | { |
| 126 | Uri uri = Uri.parse(Tomdroid.CONTENT_URI+"/"+id); |
| 127 | |
| 128 | ContentResolver cr = activity.getContentResolver(); |
| 129 | int result = cr.delete(uri, null, null); |
| 130 | |
| 131 | if(result > 0) |
| 132 | return true; |
| 133 | else |
| 134 | return false; |
| 135 | } |
| 136 | |
| 137 | public static Cursor getAllNotes(Activity activity, Boolean includeNotebookTemplates) { |
| 138 | // get a cursor representing all notes from the NoteProvider |
| 139 | Uri notes = Tomdroid.CONTENT_URI; |
| 140 | String where = null; |
| 141 | String orderBy; |
| 142 | if (!includeNotebookTemplates) { |
| 143 | where = Note.TAGS + " NOT LIKE '%" + "system:template" + "%'"; |
| 144 | } |
| 145 | orderBy = Note.MODIFIED_DATE + " DESC"; |
| 146 | return activity.managedQuery(notes, LIST_PROJECTION, where, null, orderBy); |
| 147 | } |
| 148 | |
| 149 | |
| 150 | public static ListAdapter getListAdapter(Activity activity, String querys) { |
| 151 | |
| 152 | String where; |
| 153 | if (querys==null) { |
| 154 | where=null; |
| 155 | } else { |
| 156 | // sql statements to search notes |
| 157 | String[] query = querys.split(" "); |
| 158 | where=""; |
| 159 | int count=0; |
| 160 | for (String string : query) { |
| 161 | if (count>0) where = where + " AND "; |
| 162 | where = where + "("+Note.TITLE+" LIKE '%"+string+"%' OR "+Note.NOTE_CONTENT+" LIKE '%"+string+"%')"; |
| 163 | count++; |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | // get a cursor representing all notes from the NoteProvider |
| 168 | Uri notes = Tomdroid.CONTENT_URI; |
| 169 | Cursor notesCursor = activity.managedQuery(notes, LIST_PROJECTION, where, null, null); |
| 170 | |
| 171 | // set up an adapter binding the TITLE field of the cursor to the list item |
| 172 | String[] from = new String[] { Note.TITLE }; |
| 173 | int[] to = new int[] { R.id.note_title }; |
| 174 | return new NoteListCursorAdapter(activity, R.layout.main_list_item, notesCursor, from, to); |
| 175 | } |
| 176 | |
| 177 | public static ListAdapter getListAdapter(Activity activity) { |
| 178 | |
| 179 | return getListAdapter(activity, null); |
| 180 | } |
| 181 | |
| 182 | // gets the titles of the notes present in the db, used in ViewNote.buildLinkifyPattern() |
| 183 | public static Cursor getTitles(Activity activity) { |
| 184 | |
| 185 | // get a cursor containing the notes titles |
| 186 | return activity.managedQuery(Tomdroid.CONTENT_URI, TITLE_PROJECTION, null, null, null); |
| 187 | } |
| 188 | |
| 189 | // gets the ids of the notes present in the db, used in SyncService.deleteNotes() |
| 190 | public static Cursor getGuids(Activity activity) { |
| 191 | |
| 192 | // get a cursor containing the notes guids |
| 193 | return activity.managedQuery(Tomdroid.CONTENT_URI, GUID_PROJECTION, null, null, null); |
| 194 | } |
| 195 | |
| 196 | public static int getNoteId(Activity activity, String title) { |
| 197 | |
| 198 | int id = 0; |
| 199 | |
| 200 | // get the notes ids |
| 201 | String[] whereArgs = { title }; |
| 202 | Cursor cursor = activity.managedQuery(Tomdroid.CONTENT_URI, ID_PROJECTION, Note.TITLE+"=?", whereArgs, null); |
| 203 | |
| 204 | // cursor must not be null and must return more than 0 entry |
| 205 | if (!(cursor == null || cursor.getCount() == 0)) { |
| 206 | |
| 207 | cursor.moveToFirst(); |
| 208 | id = cursor.getInt(cursor.getColumnIndexOrThrow(Note.ID)); |
| 209 | } |
| 210 | else { |
| 211 | // TODO send an error to the user |
| 212 | if (Tomdroid.LOGGING_ENABLED) Log.d(TAG, "Cursor returned null or 0 notes"); |
| 213 | } |
| 214 | |
| 215 | return id; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * stripTitleFromContent |
| 220 | * Because of an historic oddity in Tomboy's note format, a note's title is in a <title> tag but is also repeated |
| 221 | * in the <note-content> tag. This method strips it from <note-content>. |
| 222 | * @param noteContent |
| 223 | */ |
| 224 | private static String stripTitleFromContent(String xmlContent, String title) { |
| 225 | // get rid of the title that is doubled in the note's content |
| 226 | // using quote to escape potential regexp chars in pattern |
| 227 | |
| 228 | Pattern stripTitle = Pattern.compile("^\\s*"+Pattern.quote(XmlUtils.escape(title))+"\\n\\n"); |
| 229 | Matcher m = stripTitle.matcher(xmlContent); |
| 230 | if (m.find()) { |
| 231 | xmlContent = xmlContent.substring(m.end(), xmlContent.length()); |
| 232 | if (Tomdroid.LOGGING_ENABLED) Log.d(TAG, "stripped the title from note-content"); |
| 233 | } |
| 234 | |
| 235 | return xmlContent; |
| 236 | } |
| 237 | } |