finder/util.c

   1 /* util.c
   2  *
   3  * Implementation of a finder menu plugin for git-cheetah
   4  *
   5  * This provides Mac OS X specific utility functions
   6  *
   7  * Copyright (C) Heiko Voigt, 2009
   8  *
   9  * inspired by an example from Brent Simmons
  10  * brent@ranchero.com, http://macte.ch/kmyXM
  11  *
  12  */
  13 #include "../common/git-compat-util.h"
  14 #include <dirent.h>
  15 #include <unistd.h>
  16 #include <sys/wait.h>
  17 #include "../common/strbuf.h"
  18 #include "../common/debug.h"
  19 #include "../common/exec.h"
  20 #include "plugin.h"
  21 #include "util.h"
  22
  23 #define MAX_ARGS 32
  24
  25 const char *git_path()
  26 {
  27         return "";
  28 }
  29
  30 void message_box(const char *string)
  31 {
  32         CFStringRef msg = CFStringCreateWithCString(NULL,
  33                         string, kCFStringEncodingASCII);
  34
  35         CFUserNotificationDisplayNotice(0,
  36                         kCFUserNotificationNoteAlertLevel,
  37                         NULL, NULL, NULL, CFSTR("Git Cheetah says"),
  38                         msg, CFSTR("Ok"));
  39 }
  40
  41 int selection_to_path(char *path, int len, const AEDesc *selection)
  42 {
  43         AEDesc selected_item = { typeNull, NULL };
  44         int status = 1;
  45         Size item_size;
  46
  47         AliasHandle item_data_handle;
  48         FSRef file_ref;
  49         Boolean changed = false;
  50
  51         if ((!get_file_from_selection(selection, &selected_item)) &&
  52             (!get_file_from_selection_list(selection, &selected_item))) {
  53                 debug_git("failure get_file_from_*");
  54            return 0;
  55         }
  56
  57         item_size = AEGetDescDataSize(&selected_item);
  58
  59         item_data_handle = (AliasHandle) NewHandle(item_size);
  60         if (item_data_handle == nil) {
  61                 status = 0;
  62                 goto selection_to_path_fail;
  63         }
  64
  65         if (AEGetDescData(&selected_item, *item_data_handle, item_size) != noErr) {
  66                 status = 0;
  67                 goto selection_to_path_fail;
  68         }
  69
  70         if (FSResolveAlias (NULL, item_data_handle, &file_ref, &changed) != noErr) {
  71                 status = 0;
  72                 goto selection_to_path_fail;
  73         }
  74
  75         if (FSRefMakePath(&file_ref, (UInt8 *) path, len) != noErr)
  76                 status = 0;
  77
  78 selection_to_path_fail:
  79         DisposeHandle((Handle) item_data_handle);
  80         AEDisposeDesc(&selected_item);
  81         return status;
  82 }
  83
  84
  85 /* if this selection is a file return it, if not NULL is returned */
  86 AEDesc *get_file_from_selection(const AEDesc *selection, AEDesc *file)
  87 {
  88         AEDesc temp = { typeNull, NULL };
  89
  90         if (selection->descriptorType == typeAlias) {
  91                 if (AEDuplicateDesc(selection, file) != noErr)
  92                         return NULL;
  93                 return file;
  94         }
  95
  96         if (AECoerceDesc(selection, typeAlias, &temp) != noErr)
  97                 goto get_file_from_selection_fail;
  98
  99         if (temp.descriptorType != typeAlias)
 100                 goto get_file_from_selection_fail;
 101
 102         if (AEDuplicateDesc(&temp, file) != noErr)
 103                 goto get_file_from_selection_fail;
 104
 105         /* TODO: check if this is a memory leak */
 106         return file;
 107
 108 get_file_from_selection_fail:
 109         AEDisposeDesc(&temp);
 110         return NULL;
 111 }
 112
 113 AEDesc *get_file_from_selection_list(const AEDesc *selection, AEDesc *file
 114                 /* , int *index */)
 115 {
 116         AEDesc temp = { typeNull, NULL };
 117         AEDesc *result;
 118         AEKeyword dummy;
 119         long count;
 120
 121         if (selection->descriptorType != typeAEList)
 122                 return NULL;
 123
 124         if (AECountItems(selection, &count) != noErr)
 125                 return NULL;
 126
 127         if (count != 1)
 128                 return NULL;
 129
 130         if (AEGetNthDesc(selection, 1, typeWildCard, &dummy, &temp) != noErr)
 131                 return NULL;
 132
 133         result = get_file_from_selection(&temp, file);
 134         AEDisposeDesc(&temp);
 135
 136         return result;
 137 }