js/fileSave.js

   1 /*
   2  *      Copyright 2012  Samsung Electronics Co., Ltd
   3  *
   4  *      Licensed under the Flora License, Version 1.0 (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.tizenopensource.org/license
   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 function createFile(directoryHandle, fileName, fileContent, params) {
  18         if (!params) {
  19                 params = {};
  20         }
  21
  22         console.log('createFile:begin');
  23
  24         function onError(e) {
  25                 console.log("Error " + e.message);
  26         }
  27
  28         var fileToWrite = null;
  29         try {
  30                 fileToWrite = directoryHandle.createFile(fileName);
  31         } catch (e) {
  32                 onError(e);
  33         }
  34
  35         if (fileToWrite != null) {
  36                 fileToWrite.openStream("w", function(fs) {
  37                         if (params.base64) {
  38                                 fs.writeBase64(fileContent);
  39                         } else {
  40                                 fs.write(fileContent);
  41                         }
  42                         fs.close();
  43                         if (params.onSuccess)
  44                                 params.onSuccess();
  45                 }, onError, "UTF-8");
  46         }
  47 }
  48
  49 function openDir(directoryPath, onSuccess, onError) {
  50         console.log('openDir');
  51         if (!onSuccess)
  52                 onSuccess = function(dir) {}; // virtual;
  53         if (!onError)
  54                 onError = function(e) {
  55                         console.log('openDir error: ' + e.message);
  56                 };
  57
  58         console.log(directoryPath);
  59         try {
  60                 tizen.filesystem.resolve(directoryPath, onSuccess, onError, "rw");
  61         } catch (e) {
  62                 console.log('try:' + e.message);
  63         }
  64 }
  65
  66 function saveDataToFile(fileFullPath, data, params) {
  67         var tabFileName = fileFullPath.match(/([^\/]+$)/g);
  68         if (tabFileName.length == 0) {
  69                 return false;
  70         }
  71
  72         var fileName = tabFileName[0];
  73         var mask = new RegExp('/' + fileName + '$', 'g');
  74         var dirName = fileFullPath.replace(mask, '');
  75
  76         if (dirName == '') {
  77                 dirName = '/';
  78         }
  79
  80         function onOpenDirSuccess(dir) {
  81                 createFile(dir, fileName, data, params);
  82         }
  83
  84         openDir(dirName, onOpenDirSuccess);
  85 }
  86
  87 function deleteFile(fileFullPath, onSuccess) {
  88
  89         var tabFileName = fileFullPath.match(/([^\/]+$)/g);
  90         if (tabFileName.length == 0) {
  91                 return false;
  92         }
  93
  94         var fileName = tabFileName[0];
  95         var mask = new RegExp('/' + fileName + '$', 'g');
  96         var dirName = fileFullPath.replace(mask, '');
  97
  98         if (dirName == '') {
  99                 dirName = '/';
 100         }
 101
 102         function onDeleteSuccess(e) {
 103                 console.log('delete success');
 104                 onSuccess();
 105         }
 106
 107         function onDeleteError(e) {
 108                 console.log('onDeleteError: ' + e.message);
 109         }
 110
 111         function onOpenDirSuccess(dir) {
 112                 onListFiles = function(files) {
 113                         if (files.length > 0) {
 114                                 // file exists;
 115                                 if (files[0].isDirectory) {
 116                                         try {
 117                                                 console.log('try delete directory');
 118                                                 dir.deleteDirectory(fileName, false);
 119                                         } catch (e) {
 120                                                 console.log('delete driectory: ' + e.message);
 121                                         }
 122                                 } else {
 123                                         try {
 124                                                 console.log('try delete File');
 125                                                 dir.deleteFile(files[0].fullPath, onDeleteSuccess, onDeleteError);
 126                                         } catch (e2) {
 127                                                 console.log('delete file: ' + e2.message);
 128                                         }
 129                                 }
 130                         } else {
 131                                 onDeleteSuccess();
 132                         }
 133                 };
 134                 // check file exists;
 135                 dir.listFiles(onListFiles, function(e) {
 136                         console.log(e);
 137                 }, {
 138                         name: fileName
 139                 });
 140         }
 141         openDir(dirName, onOpenDirSuccess, function(e) {
 142                 console.log('openDir error:' + e.message);
 143         });
 144 }