summaryrefslogtreecommitdiff
path: root/src/util.c
blob: ff7d18b36e833afdecfa71bff72c2b5f92bcf242 (plain)
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
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
/*
 * util.c
 *
 * Copyright (C) 2002 Sun Microsystems, Inc.
 *           (C) 1999, 2000 Red Hat Inc.
 *           (C) 1998 James Henstridge
 *           (C) 1995-2002 Free Software Foundation
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Authors: Glynn Foster <glynn.foster@sun.com>
 *          Havoc Pennington <hp@redhat.com>
 *          James Henstridge <james@daa.com.au>
 *          Tom Tromey <tromey@redhat.com>
 */

#include <stdio.h>
#include <locale.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include "config.h"
#include "util.h"
#include "zenity.h"

#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#endif

#define ZENITY_OK_DEFAULT	0
#define ZENITY_CANCEL_DEFAULT	1
#define ZENITY_ESC_DEFAULT	1
#define ZENITY_ERROR_DEFAULT	-1
#define ZENITY_EXTRA_DEFAULT	127

GladeXML*
zenity_util_load_glade_file (const gchar *widget_root) 
{
  GladeXML *xml = NULL;

  if (g_file_test (ZENITY_GLADE_FILE_RELATIVEPATH, G_FILE_TEST_EXISTS)) {
    /* Try current dir, for debugging */
    xml = glade_xml_new (ZENITY_GLADE_FILE_RELATIVEPATH, widget_root, GETTEXT_PACKAGE);
  }
 
  if (xml == NULL)
    xml = glade_xml_new (ZENITY_GLADE_FILE_FULLPATH, widget_root, GETTEXT_PACKAGE);

  if (xml == NULL) {
    g_warning ("Could not load glade file : %s", ZENITY_GLADE_FILE_FULLPATH);
    return NULL;
  }

  return xml;
}

gchar*
zenity_util_strip_newline (gchar *string)
{
    gsize len;
    
    g_return_val_if_fail (string != NULL, NULL);
                                                                                                                                                                             
    len = strlen (string);
    while (len--) 
    {
      if (string[len] == '\n')
        string[len] = '\0';
      else
        break;
    }
            
    return string;
}

gboolean
zenity_util_fill_file_buffer (GtkTextBuffer *buffer, const gchar *filename) 
{
  GtkTextIter iter, end;
  FILE *f;
  gchar buf[2048];
  gint remaining = 0;

  if (filename == NULL)
    return FALSE;

  f = fopen (filename, "r");

  if (f == NULL) {
    g_warning ("Cannot open file '%s': %s", filename, g_strerror (errno));
    return FALSE;
  }

  gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);

  while (!feof (f)) {
    gint count;
    const char *leftover;
    int to_read = 2047  - remaining;

    count = fread (buf + remaining, 1, to_read, f);
    buf[count + remaining] = '\0';

    g_utf8_validate (buf, count + remaining, &leftover);

    g_assert (g_utf8_validate (buf, leftover - buf, NULL));
    gtk_text_buffer_insert (buffer, &iter, buf, leftover - buf);

    remaining = (buf + remaining + count) - leftover;
    g_memmove (buf, leftover, remaining);

    if (remaining > 6 || count < to_read)
      break;
  }

  if (remaining) {
    g_warning ("Invalid UTF-8 data encountered reading file '%s'", filename);
    return FALSE;
  }

  /* We had a newline in the buffer to begin with. (The buffer always contains
   * a newline, so we delete to the end of the buffer to clean up.
   */
  
  gtk_text_buffer_get_end_iter (buffer, &end);
  gtk_text_buffer_delete (buffer, &iter, &end);

  gtk_text_buffer_set_modified (buffer, FALSE);

  return TRUE;
}

GdkPixbuf *
zenity_util_pixbuf_new_from_file (GtkWidget *widget, gchar *filename)
{
    if (!strcasecmp (filename, "warning"))
      return gtk_widget_render_icon (widget, GTK_STOCK_DIALOG_WARNING, GTK_ICON_SIZE_BUTTON, NULL);
    if (!strcasecmp (filename, "info"))
      return gtk_widget_render_icon (widget, GTK_STOCK_DIALOG_INFO, GTK_ICON_SIZE_BUTTON, NULL);
    if (!strcasecmp (filename, "question"))
      return gtk_widget_render_icon (widget, GTK_STOCK_DIALOG_QUESTION, GTK_ICON_SIZE_BUTTON, NULL);
    if (!strcasecmp (filename, "error"))
      return gtk_widget_render_icon (widget, GTK_STOCK_DIALOG_ERROR, GTK_ICON_SIZE_BUTTON, NULL);
    else
      return gdk_pixbuf_new_from_file (filename, NULL);
}

void
zenity_util_set_window_icon (GtkWidget *widget, const gchar *filename, const gchar *default_file)
{
  GdkPixbuf *pixbuf;

  if (filename != NULL)
    pixbuf = zenity_util_pixbuf_new_from_file (widget, (gchar *) filename);
  else
    pixbuf = gdk_pixbuf_new_from_file (default_file, NULL);  

  if (pixbuf != NULL) {
    gtk_window_set_icon (GTK_WINDOW (widget), pixbuf);
    g_object_unref (pixbuf);
  }
}

void 
zenity_util_set_window_icon_from_stock (GtkWidget *widget, const gchar *filename, const gchar *default_stock_id)
{
  GdkPixbuf *pixbuf;

  if (filename != NULL) {
    pixbuf = zenity_util_pixbuf_new_from_file (widget, (gchar *) filename);
  }
  else {
    pixbuf = gtk_widget_render_icon (widget, default_stock_id, GTK_ICON_SIZE_BUTTON, NULL);
  }

  if (pixbuf != NULL) {
    gtk_window_set_icon (GTK_WINDOW (widget), pixbuf);
    g_object_unref (pixbuf);
  }
}

void
zenity_util_show_help (GError **error)
{
  gchar *tmp;
  tmp = g_find_program_in_path ("yelp");

  if (tmp) {
    g_free (tmp);
    g_spawn_command_line_async ("yelp ghelp:zenity", error);
  }
}

gint 
zenity_util_return_exit_code ( ZenityExitCode value ) 
{

  const gchar *env_var = NULL;
  gint retval;

  switch (value) {
  
  case ZENITY_OK:
    env_var = g_getenv("ZENITY_OK");
    if (! env_var) 
          env_var = g_getenv("DIALOG_OK");
    if (! env_var) 
          retval = ZENITY_OK_DEFAULT;
    break;
   
  case ZENITY_CANCEL:
    env_var = g_getenv("ZENITY_CANCEL");
    if (! env_var) 
          env_var = g_getenv("DIALOG_CANCEL");
    if (! env_var) 
          retval = ZENITY_CANCEL_DEFAULT;
    break;
    
  case ZENITY_ESC:
    env_var = g_getenv("ZENITY_ESC");
    if (! env_var) 
          env_var = g_getenv("DIALOG_ESC");
    if (! env_var) 
          retval = ZENITY_ESC_DEFAULT;
    break;
    
  case ZENITY_EXTRA:
    env_var = g_getenv("ZENITY_EXTRA");
    if (! env_var) 
          env_var = g_getenv("DIALOG_EXTRA");
    if (! env_var) 
          retval = ZENITY_EXTRA_DEFAULT;
    break;
    
  case ZENITY_ERROR:
    env_var = g_getenv("ZENITY_ERROR");
    if (! env_var) 
          env_var = g_getenv("DIALOG_ERROR");
    if (! env_var) 
          retval = ZENITY_ERROR_DEFAULT;
    break;
    
  default:
    retval = 1;
  }
  
  if (env_var) 
      retval = atoi (env_var);
  return retval; 
}


#ifdef GDK_WINDOWING_X11

static Window
transient_get_xterm (void)
{
  const char *wid_str = g_getenv ("WINDOWID");
  if (wid_str) {
    char *wid_str_end;
    Window wid = strtoul (wid_str, &wid_str_end, 10);
    if (*wid_str != '\0' && *wid_str_end == '\0' && wid != 0) {
      XWindowAttributes attrs;
      gdk_error_trap_push ();
      XGetWindowAttributes (GDK_DISPLAY(), wid, &attrs);
      gdk_flush();
      if (gdk_error_trap_pop () != 0) {
        return None;
      }
      return wid;
    }
  }
  return None;
}

static void
transient_x_free (void *ptr)
{
  if (ptr)
    XFree (ptr);
}

static gboolean
transient_is_toplevel (Window wid)
{
  XTextProperty prop;
  Display *dpy = GDK_DISPLAY ();
  if (!XGetWMName (dpy, wid, &prop))
    return FALSE;
  transient_x_free (prop.value);
  return !!prop.value;
}

/*
 * GNOME Terminal doesn't give us its toplevel window, but the WM needs a
 * toplevel XID for proper stacking.  Other terminals work fine without this
 * magic.  We can't use GDK here since "xterm" is a foreign window.
 */

static Window
transient_get_xterm_toplevel (void)
{
  Window xterm = transient_get_xterm ();
  Display *dpy = GDK_DISPLAY ();
  while (xterm != None && !transient_is_toplevel (xterm))
  {
    Window root, parent, *children;
    int nchildren;
    XQueryTree (dpy, xterm,
                &root, &parent,
                &children, &nchildren);
    transient_x_free (children);
    if (parent == root)
      xterm = None;
    else
      xterm = parent;
  }
  return xterm;
}

static void
zenity_util_make_transient (GdkWindow *window)
{
  Window xterm = transient_get_xterm_toplevel ();
  if (xterm != None) {
    GdkWindow *gdkxterm = gdk_window_foreign_new (xterm);
    if (gdkxterm) {
      gdk_window_set_transient_for (window, gdkxterm);
      g_object_unref (G_OBJECT (gdkxterm));
    }
  }
}

#endif /* GDK_WINDOWING_X11 */

void
zenity_util_show_dialog (GtkWidget *dialog)
{
  gtk_widget_realize (dialog);
#ifdef GDK_WINDOWING_X11
  g_assert (dialog->window);
  zenity_util_make_transient (dialog->window);
#endif
  gtk_widget_show (dialog);
}