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+unit UPlatformMacOSX;
+
+interface
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+uses
+ Classes,
+ ULog,
+ UPlatform;
+
+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 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/Resources/.
+ * GetGameUserPath could return
+ * ~/Library/Application Support/UltraStarDeluxe/Resources/.
+ *
+ * Right now, only $HOME/Library/Application Support/UltraStarDeluxe/Resources
+ * 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/Resources. 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 Resources folder 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: WideString;
+
+ {**
+ * GetApplicationSupportPath returns the path to
+ * $HOME/Library/Application Support/UltraStarDeluxe/Resources.
+ *}
+ function GetApplicationSupportPath: WideString;
+
+ {**
+ * see the description of @link(Init).
+ *}
+ procedure CreateUserFolders();
+
+ public
+ {**
+ * Init simply calls @link(CreateUserFolders), which in turn scans the folder
+ * UltraStarDeluxe.app/Contents/Resources for all files and folders.
+ * $HOME/Library/Application Support/UltraStarDeluxe/Resources is then checked
+ * for their presence and missing ones are copied.
+ *}
+ procedure Init; override;
+
+ {**
+ * DirectoryFindFiles returns all entries of a folder with names and booleans
+ * about their type, i.e. file or directory.
+ *}
+ function DirectoryFindFiles(Dir, Filter: WideString; ReturnAllSubDirs: boolean): TDirectoryEntryArray; override;
+
+ {**
+ * GetLogPath returns the path for log messages. Currently it is set to
+ * $HOME/Library/Application Support/UltraStarDeluxe/Resources/Log.
+ *}
+ function GetLogPath : WideString; override;
+
+ {**
+ * GetGameSharedPath returns the path for shared resources. Currently it is set to
+ * /Library/Application Support/UltraStarDeluxe/Resources.
+ * However it is not used.
+ *}
+ function GetGameSharedPath : WideString; override;
+
+ {**
+ * GetGameUserPath returns the path for user resources. Currently it is set to
+ * $HOME/Library/Application Support/UltraStarDeluxe/Resources.
+ * This is where a user can add songs, themes, ....
+ *}
+ function GetGameUserPath : WideString; override;
+ end;
+
+implementation
+
+uses
+ SysUtils,
+ BaseUnix;
+
+procedure TPlatformMacOSX.Init;
+begin
+ CreateUserFolders();
+end;
+
+procedure TPlatformMacOSX.CreateUserFolders();
+var
+ RelativePath: string;
+ // 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: string;
+ // 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: string;
+ // This record contains the result of a file search with FindFirst or FindNext
+ SearchInfo: TSearchRec;
+ // These two lists contain all folder and file names found
+ // within the folder @link(BaseDir).
+ DirectoryList, FileList: TStringList;
+ // 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;
+ Counter: longint;
+
+ UserPathName: string;
+const
+ // used to construct the @link(UserPathName)
+ PathName: string = '/Library/Application Support/UltraStarDeluxe/Resources';
+begin
+ // Get the current folder and save it in OldBaseDir for returning to it, when
+ // finished.
+ GetDir(0, OldBaseDir);
+
+ // UltraStarDeluxe.app/Contents/Resources contains all the default files and
+ // folders.
+ BaseDir := OldBaseDir + '/UltraStarDeluxe.app/Contents/Resources';
+ ChDir(BaseDir);
+
+ // Right now, only $HOME/Library/Application Support/UltraStarDeluxe/Resources
+ // is used.
+ UserPathName := GetEnvironmentVariable('HOME') + PathName;
+
+ DirectoryIsFinished := 0;
+ DirectoryList := TStringList.Create();
+ FileList := TStringList.Create();
+ DirectoryList.Add('.');
+
+ // create the folder and file lists
+ repeat
+
+ RelativePath := DirectoryList[DirectoryIsFinished];
+ ChDir(BaseDir + '/' + RelativePath);
+ if (FindFirst('*', faAnyFile, SearchInfo) = 0) then
+ begin
+ repeat
+ if DirectoryExists(SearchInfo.Name) then
+ begin
+ if (SearchInfo.Name <> '.') and (SearchInfo.Name <> '..') then
+ DirectoryList.Add(RelativePath + '/' + SearchInfo.Name);
+ end
+ else
+ Filelist.Add(RelativePath + '/' + SearchInfo.Name);
+ until (FindNext(SearchInfo) <> 0);
+ end;
+ FindClose(SearchInfo);
+ Inc(DirectoryIsFinished);
+ until (DirectoryIsFinished = DirectoryList.Count);
+
+ // create missing folders
+ for Counter := 0 to DirectoryList.Count-1 do
+ begin
+ if not ForceDirectories(UserPathName + '/' + DirectoryList[Counter]) then
+ Log.LogError('Failed to create the folder "'+ UserPathName + '/' + DirectoryList[Counter] +'"',
+ 'TPlatformMacOSX.CreateUserFolders');
+ end;
+ DirectoryList.Free();
+
+ // copy missing files
+ for Counter := 0 to Filelist.Count-1 do
+ begin
+ CopyFile(BaseDir + '/' + Filelist[Counter],
+ UserPathName + '/' + Filelist[Counter], true);
+ end;
+ FileList.Free();
+
+ // go back to the initial folder
+ ChDir(OldBaseDir);
+end;
+
+function TPlatformMacOSX.GetBundlePath: WideString;
+var
+ i, pos : integer;
+begin
+ // Mac applications are packaged in folders.
+ // We have to cut the last two folders
+ // to get the application folder.
+
+ Result := ExtractFilePath(ParamStr(0));
+ for i := 1 to 2 do
+ begin
+ pos := Length(Result);
+ repeat
+ Delete(Result, pos, 1);
+ pos := Length(Result);
+ until (pos = 0) or (Result[pos] = '/');
+ end;
+end;
+
+function TPlatformMacOSX.GetApplicationSupportPath: WideString;
+const
+ PathName : string = '/Library/Application Support/UltraStarDeluxe/Resources';
+begin
+ Result := GetEnvironmentVariable('HOME') + PathName + '/';
+end;
+
+function TPlatformMacOSX.GetLogPath: WideString;
+begin
+ Result := GetApplicationSupportPath + 'Logs';
+end;
+
+function TPlatformMacOSX.GetGameSharedPath: WideString;
+begin
+ Result := GetApplicationSupportPath;
+end;
+
+function TPlatformMacOSX.GetGameUserPath: WideString;
+begin
+ Result := GetApplicationSupportPath;
+end;
+
+function TPlatformMacOSX.DirectoryFindFiles(Dir, Filter: WideString; ReturnAllSubDirs: boolean): TDirectoryEntryArray;
+var
+ i : integer;
+ TheDir : pdir;
+ ADirent : pDirent;
+ lAttrib : integer;
+begin
+ i := 0;
+ Filter := LowerCase(Filter);
+
+ TheDir := FPOpenDir(Dir);
+ if Assigned(TheDir) then
+ repeat
+ ADirent := FPReadDir(TheDir);
+
+ if Assigned(ADirent) and (ADirent^.d_name <> '.') and (ADirent^.d_name <> '..') then
+ begin
+ lAttrib := FileGetAttr(Dir + ADirent^.d_name);
+ if ReturnAllSubDirs and ((lAttrib and faDirectory) <> 0) then
+ begin
+ SetLength(Result, i + 1);
+ Result[i].Name := ADirent^.d_name;
+ Result[i].IsDirectory := true;
+ Result[i].IsFile := false;
+ i := i + 1;
+ end
+ else if (Length(Filter) = 0) or (Pos( Filter, LowerCase(ADirent^.d_name)) > 0) then
+ begin
+ SetLength(Result, i + 1);
+ Result[i].Name := ADirent^.d_name;
+ Result[i].IsDirectory := false;
+ Result[i].IsFile := true;
+ i := i + 1;
+ end;
+ end;
+ until ADirent = nil;
+
+ FPCloseDir(TheDir);
+end;
+
+end.