aboutsummaryrefslogtreecommitdiffstats
path: root/us_maker_edition/src/base/UPlatformMacOSX.pas
blob: 7115a6b0728b91518029acfc2903a1fcea246a47 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
{* UltraStar Deluxe - Karaoke Game
 *
 * UltraStar Deluxe is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *}

unit UPlatformMacOSX;

interface

{$IFDEF FPC}
  {$MODE Delphi}
{$ENDIF}

{$I switches.inc}

uses
  Classes,
  ULog,
  UPlatform,
  UFilesystem,
  UPath;

type
  {**
   * @abstract(Provides Mac OS X specific details.)
   * @lastmod(August 1, 2008)
   * The UPlatformMacOSX unit takes care of setting paths to resource folders.
   *
   * (Note for non-Maccies: "folder" is the Mac name for directory.)
   *
   * Note on the resource folders:
   *  1. Installation of an application on the mac works as follows: Extract and
   *     copy an application and if you don't like or need the application
   *     anymore you move the folder to the trash - and you're done.
   *  2. The use of folders in the user's home directory is against Apple's
   *     guidelines and strange to an average user.
   *  3. Even worse is using /usr/local/... since all lowercase folders in / are
   *     not visible to an average user in the Finder, at least not without some
   *     "tricks".
   *
   * The best way would be to store everything within the application bundle.
   * However, this requires USDX to offer the handling of the resources. Until
   * this is implemented, the second best solution is as follows:
   *
   * According to Aple guidelines handling of resources and folders should follow
   * these lines:
   *
   * Acceptable places for files are folders named UltraStarDeluxe either in
   *   /Library/Application Support/
   * or
   *   ~/Library/Application Support/
   *
   * So
   * GetGameSharedPath could return
   *   /Library/Application Support/UltraStarDeluxe/.
   * GetGameUserPath could return
   *   ~/Library/Application Support/UltraStarDeluxe/.
   *
   * Right now, only $HOME/Library/Application Support/UltraStarDeluxe
   * is used. So every user needs the complete set of files and folders.
   * Future versions may also use shared resources in
   * /Library/Application Support/UltraStarDeluxe. However, this is
   * not treated yet in the code outside this unit.
   *
   * USDX checks, whether GetGameUserPath exists. If not, USDX creates it.
   * The existence of needed files is then checked and if a file is missing
   * it is copied to there from within the folder Contents in the Application
   * bundle, which contains the default files. USDX should not delete files or
   * folders in Application Support/UltraStarDeluxe automatically or without
   * user confirmation.
   *}
  TPlatformMacOSX = class(TPlatform)
    private
      {**
       * GetBundlePath returns the path to the application bundle
       * UltraStarDeluxe.app.
       *}
      function GetBundlePath: IPath;

      {**
       * GetApplicationSupportPath returns the path to
       * $HOME/Library/Application Support/UltraStarDeluxe.
       *}
      function GetApplicationSupportPath: IPath;

      {**
       * see the description of @link(Init).
       *}
      procedure CreateUserFolders();

      {**
       * GetHomeDir returns the path to $HOME.
       *}
      function GetHomeDir: IPath;

    public
      {**
       * Init simply calls @link(CreateUserFolders), which in turn scans the
       * folder UltraStarDeluxe.app/Contents for all files and
       * folders. $HOME/Library/Application Support/UltraStarDeluxe
       * is then checked for their presence and missing ones are copied.
       *}
      procedure Init; override;

      {**
       * GetLogPath returns the path for log messages. Currently it is set to
       * $HOME/Library/Logs/UltraStar Deluxe/.
       *}
      function  GetLogPath:        IPath; override;

      {**
       * GetMusicPath returns the path for music. Currently it is set to
       * $HOME/Music/UltraStar Deluxe/.
       *}
      function  GetMusicPath:      IPath; override;

      {**
       * GetGameSharedPath returns the path for shared resources. Currently it
       * is also set to $HOME/Library/Application Support/UltraStarDeluxe.
       * However it is not used.
       *}
      function  GetGameSharedPath: IPath; override;

      {**
       * GetGameUserPath returns the path for user resources. Currently it is
       * set to $HOME/Library/Application Support/UltraStarDeluxe.
       * This is where a user can add themes, ....
       *}
      function  GetGameUserPath:   IPath; override;
  end;

implementation

uses
  SysUtils;

procedure TPlatformMacOSX.Init;
begin
  CreateUserFolders();
end;

procedure TPlatformMacOSX.CreateUserFolders();
var
  RelativePath: IPath;
  // BaseDir contains the path to the folder, where a search is performed.
  // It is set to the entries in @link(DirectoryList) one after the other.
  BaseDir: IPath;
  // OldBaseDir contains the path to the folder, where the search started.
  // It is used to return to it, when the search is completed in all folders.
  OldBaseDir: IPath;
  Iter:       IFileIterator;
  FileInfo:   TFileInfo;
  CurPath:    IPath;
  // These two lists contain all folder and file names found
  // within the folder @link(BaseDir).
  DirectoryList, FileList: IInterfaceList;
  // DirectoryIsFinished contains the index of the folder in @link(DirectoryList),
  // which is the last one completely searched. Later folders are still to be
  // searched for additional files and folders.
  DirectoryIsFinished: longint;
  I: longint;
  // These three are for creating directories, due to possible symlinks
  CreatedDirectory: boolean;
  FileAttrs:        integer;
  DirectoryPath:    IPath;
  UserPath:         IPath;
  SrcFile, TgtFile: IPath;
begin
  // Get the current folder and save it in OldBaseDir for returning to it, when
  // finished.
  OldBaseDir := FileSystem.GetCurrentDir();

  // UltraStarDeluxe.app/Contents contains all the default files and folders.
  BaseDir := OldBaseDir.Append('UltraStarDeluxe.app/Contents');
  FileSystem.SetCurrentDir(BaseDir);

  // Right now, only $HOME/Library/Application Support/UltraStarDeluxe is used.
  UserPath := GetGameUserPath();

  DirectoryIsFinished := 0;
  // replace with IInterfaceList
  DirectoryList := TInterfaceList.Create();
  FileList := TInterfaceList.Create();
  DirectoryList.Add(Path('.'));

  // create the folder and file lists
  repeat
    RelativePath := (DirectoryList[DirectoryIsFinished] as IPath);
    FileSystem.SetCurrentDir(BaseDir.Append(RelativePath));
    Iter := FileSystem.FileFind(Path('*'), faAnyFile);
    while (Iter.HasNext) do    
    begin
      FileInfo := Iter.Next;
      CurPath := FileInfo.Name;
      if CurPath.IsDirectory() then
      begin
        if (not CurPath.Equals('.')) and 
	   (not CurPath.Equals('..')) and 
	   (not CurPath.Equals('MacOS')) then
          DirectoryList.Add(RelativePath.Append(CurPath));
      end
      else
        Filelist.Add(RelativePath.Append(CurPath));
    end;
    Inc(DirectoryIsFinished);
  until (DirectoryIsFinished = DirectoryList.Count);

  // create missing folders
  UserPath.CreateDirectory(true); // should not be necessary since (UserPathName+'/.') is created.
  for I := 0 to DirectoryList.Count-1 do
  begin
    CurPath          := DirectoryList[I] as IPath;
    DirectoryPath    := UserPath.Append(CurPath);
    CreatedDirectory := DirectoryPath.CreateDirectory();
    FileAttrs        := DirectoryPath.GetAttr();
    // Maybe analyse the target of the link with FpReadlink().
    // Let's assume the symlink is pointing to an existing directory.
    if (not CreatedDirectory) and (FileAttrs and faSymLink > 0) then
      Log.LogError('Failed to create the folder "'+ DirectoryPath.ToNative +'"',
                   'TPlatformMacOSX.CreateUserFolders');
  end;

  // copy missing files
  for I := 0 to Filelist.Count-1 do
  begin
    CurPath := Filelist[I] as IPath;
    SrcFile := BaseDir.Append(CurPath);
    TgtFile := UserPath.Append(CurPath);
    SrcFile.CopyFile(TgtFile, true);
  end;

  // go back to the initial folder
  FileSystem.SetCurrentDir(OldBaseDir);
end;

function TPlatformMacOSX.GetBundlePath: IPath;
begin
  // Mac applications are packaged in folders.
  // Cutting the last two folders yields the application folder.
  Result := GetExecutionDir().GetParent().GetParent();
end;

function TPlatformMacOSX.GetHomeDir: IPath;
begin
  Result := Path(GetEnvironmentVariable('HOME'));
end;

function TPlatformMacOSX.GetApplicationSupportPath: IPath;
begin
  Result := GetHomeDir.Append('Library/Application Support/UltraStarDeluxe', pdAppend);
end;

function TPlatformMacOSX.GetLogPath: IPath;
begin
  Result := GetHomeDir.Append('Library/Logs/UltraStar Deluxe', pdAppend);
end;

function TPlatformMacOSX.GetMusicPath: IPath;
begin
  Result := GetHomeDir.Append('Music/UltraStar Deluxe', pdAppend);
end;

function TPlatformMacOSX.GetGameSharedPath: IPath;
begin
  Result := GetApplicationSupportPath;
end;

function TPlatformMacOSX.GetGameUserPath: IPath;
begin
  Result := GetApplicationSupportPath;
end;

end.