diff --git a/WorkingNote.java b/WorkingNote.java new file mode 100644 index 0000000..49be969 --- /dev/null +++ b/WorkingNote.java @@ -0,0 +1,430 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.model; + +import android.appwidget.AppWidgetManager; +import android.content.ContentUris; +import android.content.Context; +import android.database.Cursor; +import android.text.TextUtils; +import android.util.Log; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.CallNote; +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.data.Notes.TextNote; +import net.micode.notes.tool.ResourceParser.NoteBgResources; + + +/** + * 工作笔记管理类：处理笔记的创建、加载、保存及状态管理 + * 封装笔记的编辑状态和业务逻辑，关联Widget和提醒功能 + */ +public class WorkingNote { + // 关联的基础笔记模型 + private Note mNote; + // 笔记ID + private long mNoteId; + // 笔记内容 + private String mContent; + // 笔记模式（普通/待办清单） + private int mMode; + // 提醒时间 + private long mAlertDate; + // 最后修改时间 + private long mModifiedDate; + // 背景颜色ID + private int mBgColorId; + // Widget ID + private int mWidgetId; + // Widget类型 + private int mWidgetType; + // 所属文件夹ID + private long mFolderId; + // 应用上下文 + private Context mContext; + // 日志标签 + private static final String TAG = "WorkingNote"; + // 标记是否已删除 + private boolean mIsDeleted; + // 笔记设置变更监听器 + private NoteSettingChangedListener mNoteSettingStatusListener; + + // 数据查询投影（指定查询的列） + public static final String[] DATA_PROJECTION = new String[] { + DataColumns.ID, + DataColumns.CONTENT, + DataColumns.MIME_TYPE, + DataColumns.DATA1, + DataColumns.DATA2, + DataColumns.DATA3, + DataColumns.DATA4, + }; + + // 笔记查询投影 + public static final String[] NOTE_PROJECTION = new String[] { + NoteColumns.PARENT_ID, // 所属文件夹ID + NoteColumns.ALERTED_DATE, // 提醒时间 + NoteColumns.BG_COLOR_ID, // 背景颜色ID + NoteColumns.WIDGET_ID, // Widget ID + NoteColumns.WIDGET_TYPE, // Widget类型 + NoteColumns.MODIFIED_DATE // 最后修改时间 + }; + + // 列索引常量（提高代码可读性） + private static final int DATA_ID_COLUMN = 0; + private static final int DATA_CONTENT_COLUMN = 1; + private static final int DATA_MIME_TYPE_COLUMN = 2; + private static final int DATA_MODE_COLUMN = 3; + private static final int NOTE_PARENT_ID_COLUMN = 0; + private static final int NOTE_ALERTED_DATE_COLUMN = 1; + private static final int NOTE_BG_COLOR_ID_COLUMN = 2; + private static final int NOTE_WIDGET_ID_COLUMN = 3; + private static final int NOTE_WIDGET_TYPE_COLUMN = 4; + private static final int NOTE_MODIFIED_DATE_COLUMN = 5; + + /** + * 新建笔记构造函数 + * @param context 应用上下文 + * @param folderId 所属文件夹ID + */ + private WorkingNote(Context context, long folderId) { + mContext = context; + mAlertDate = 0; + mModifiedDate = System.currentTimeMillis(); + mFolderId = folderId; + mNote = new Note(); + mNoteId = 0; + mIsDeleted = false; + mMode = 0; + mWidgetType = Notes.TYPE_WIDGET_INVALIDE; + } + + /** + * 加载现有笔记构造函数 + * @param context 应用上下文 + * @param noteId 笔记ID + * @param folderId 所属文件夹ID + */ + private WorkingNote(Context context, long noteId, long folderId) { + mContext = context; + mNoteId = noteId; + mFolderId = folderId; + mIsDeleted = false; + mNote = new Note(); + loadNote(); // 加载笔记基础信息 + } + + /** + * 从数据库加载笔记基础信息 + */ + private void loadNote() { + // 查询笔记基础信息 + Cursor cursor = mContext.getContentResolver().query( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, + null, null); + + if (cursor != null) { + if (cursor.moveToFirst()) { + // 解析查询结果并赋值给成员变量 + mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); + mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN); + mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN); + mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN); + mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN); + mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN); + } + cursor.close(); + } else { + Log.e(TAG, "No note with id:" + mNoteId); + throw new IllegalArgumentException("Unable to find note with id " + mNoteId); + } + loadNoteData(); // 加载笔记详细数据 + } + + /** + * 加载笔记详细数据（内容、类型等） + */ + private void loadNoteData() { + // 查询笔记关联的数据 + Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, + DataColumns.NOTE_ID + "=?", new String[] { + String.valueOf(mNoteId) + }, null); + + if (cursor != null) { + if (cursor.moveToFirst()) { + do { + String type = cursor.getString(DATA_MIME_TYPE_COLUMN); + if (DataConstants.NOTE.equals(type)) { + // 普通文本笔记 + mContent = cursor.getString(DATA_CONTENT_COLUMN); + mMode = cursor.getInt(DATA_MODE_COLUMN); + mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN)); + } else if (DataConstants.CALL_NOTE.equals(type)) { + // 通话笔记 + mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN)); + } else { + Log.d(TAG, "Wrong note type with type:" + type); + } + } while (cursor.moveToNext()); + } + cursor.close(); + } else { + Log.e(TAG, "No data with id:" + mNoteId); + throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId); + } + } + + /** + * 创建空笔记的工厂方法 + * @param context 应用上下文 + * @param folderId 所属文件夹ID + * @param widgetId Widget ID + * @param widgetType Widget类型 + * @param defaultBgColorId 默认背景颜色ID + * @return 新创建的WorkingNote实例 + */ + public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, + int widgetType, int defaultBgColorId) { + WorkingNote note = new WorkingNote(context, folderId); + note.setBgColorId(defaultBgColorId); + note.setWidgetId(widgetId); + note.setWidgetType(widgetType); + return note; + } + + /** + * 加载现有笔记的工厂方法 + * @param context 应用上下文 + * @param id 笔记ID + * @return 加载的WorkingNote实例 + */ + public static WorkingNote load(Context context, long id) { + return new WorkingNote(context, id, 0); + } + + /** + * 保存笔记到数据库 + * @return 保存结果 + */ + public synchronized boolean saveNote() { + if (isWorthSaving()) { // 判断是否需要保存 + if (!existInDatabase()) { // 新建笔记场景 + if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) { + Log.e(TAG, "Create new note fail with id:" + mNoteId); + return false; + } + } + + mNote.syncNote(mContext, mNoteId); // 同步笔记数据 + + /** + * 如果存在关联的Widget，则通知更新 + */ + if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && mWidgetType != Notes.TYPE_WIDGET_INVALIDE + && mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onWidgetChanged(); + } + return true; + } else { + return false; + } + } + + /** + * 判断笔记是否已存在于数据库 + */ + public boolean existInDatabase() { + return mNoteId > 0; + } + + /** + * 判断是否值得保存（避免无效保存） + */ + private boolean isWorthSaving() { + if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) + || (existInDatabase() && !mNote.isLocalModified())) { + return false; + } else { + return true; + } + } + + /** + * 设置笔记设置变更监听器 + */ + public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { + mNoteSettingStatusListener = l; + } + + /** + * 设置提醒时间 + * @param date 提醒时间戳 + * @param set 是否设置提醒 + */ + public void setAlertDate(long date, boolean set) { + if (date != mAlertDate) { + mAlertDate = date; + mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate)); + } + // 通知监听器提醒时间已变更 + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onClockAlertChanged(date, set); + } + } + + // 以下为各种属性的设置方法（带变更检测和通知） + public void markDeleted(boolean mark) { + mIsDeleted = mark; + if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onWidgetChanged(); + } + } + + public void setBgColorId(int id) { + if (id != mBgColorId) { + mBgColorId = id; + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onBackgroundColorChanged(); + } + mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id)); + } + } + + public void setCheckListMode(int mode) { + if (mMode != mode) { + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); + } + mMode = mode; + mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); + } + } + + public void setWidgetType(int type) { + if (type != mWidgetType) { + mWidgetType = type; + mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType)); + } + } + + public void setWidgetId(int id) { + if (id != mWidgetId) { + mWidgetId = id; + mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId)); + } + } + + public void setWorkingText(String text) { + if (!TextUtils.equals(mContent, text)) { + mContent = text; + mNote.setTextData(DataColumns.CONTENT, mContent); + } + } + + /** + * 将文本笔记转换为通话笔记 + * @param phoneNumber 电话号码 + * @param callDate 通话时间 + */ + public void convertToCallNote(String phoneNumber, long callDate) { + mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate)); + mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber); + // 更改所属文件夹为通话记录文件夹 + mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER)); + } + + // 以下为各种属性的获取方法 + public boolean hasClockAlert() { + return (mAlertDate > 0 ? true : false); + } + + public String getContent() { + return mContent; + } + + public long getAlertDate() { + return mAlertDate; + } + + public long getModifiedDate() { + return mModifiedDate; + } + + public int getBgColorResId() { + return NoteBgResources.getNoteBgResource(mBgColorId); + } + + public int getBgColorId() { + return mBgColorId; + } + + public int getTitleBgResId() { + return NoteBgResources.getNoteTitleBgResource(mBgColorId); + } + + public int getCheckListMode() { + return mMode; + } + + public long getNoteId() { + return mNoteId; + } + + public long getFolderId() { + return mFolderId; + } + + public int getWidgetId() { + return mWidgetId; + } + + public int getWidgetType() { + return mWidgetType; + } + + /** + * 笔记设置变更监听器接口 + * 定义笔记属性变更时的回调方法 + */ + public interface NoteSettingChangedListener { + /** + * 背景颜色变更时回调 + */ + void onBackgroundColorChanged(); + + /** + * 提醒时间变更时回调 + */ + void onClockAlertChanged(long date, boolean set); + + /** + * Widget状态变更时回调 + */ + void onWidgetChanged(); + + /** + * 待办清单模式变更时回调 + */ + void onCheckListModeChanged(int oldMode, int newMode); + } +} \ No newline at end of file