src/window.cc

   1 /*
   2  * Copyright (C) 2008 - 2016 The Geeqie Team
   3  *
   4  * Authors: Vladimir Nadvornik, Laurent Monin
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "window.h"
  22
  23 #include <config.h>
  24
  25 #include "debug.h"
  26 #include "intl.h"
  27 #include "main-defines.h"
  28 #include "main.h"
  29 #include "misc.h"
  30 #include "options.h"
  31 #include "pixbuf-util.h"
  32 #include "ui-fileops.h"
  33 #include "ui-help.h"
  34 #include "ui-misc.h"
  35 #include "ui-utildlg.h"
  36
  37 GtkWidget *window_new(const gchar *role, const gchar *icon, const gchar *icon_file, const gchar *subtitle)
  38 {
  39         gchar *title;
  40         GtkWidget *window;
  41
  42 #ifdef HAVE_GTK4
  43         window = gtk_window_new();
  44 #else
  45         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  46 #endif
  47         if (!window) return nullptr;
  48
  49         if (subtitle)
  50                 {
  51                 title = g_strdup_printf("%s - %s", subtitle, GQ_APPNAME);
  52                 }
  53         else
  54                 {
  55                 title = g_strdup_printf("%s", GQ_APPNAME);
  56                 }
  57
  58         gtk_window_set_title(GTK_WINDOW(window), title);
  59         g_free(title);
  60
  61         window_set_icon(window, icon, icon_file);
  62         gtk_window_set_role(GTK_WINDOW(window), role);
  63
  64         return window;
  65 }
  66
  67 void window_set_icon(GtkWidget *window, const gchar *icon, const gchar *file)
  68 {
  69         if (!icon && !file) icon = PIXBUF_INLINE_ICON;
  70
  71         if (icon)
  72                 {
  73                 GdkPixbuf *pixbuf;
  74
  75                 pixbuf = pixbuf_inline(icon);
  76                 if (pixbuf)
  77                         {
  78                         gtk_window_set_icon(GTK_WINDOW(window), pixbuf);
  79                         g_object_unref(pixbuf);
  80                         }
  81                 }
  82         else
  83                 {
  84                 gtk_window_set_icon_from_file(GTK_WINDOW(window), file, nullptr);
  85                 }
  86 }
  87
  88 gboolean window_maximized(GtkWidget *window)
  89 {
  90         GdkWindowState state;
  91
  92         if (!window || !gtk_widget_get_window(window)) return FALSE;
  93
  94         state = gdk_window_get_state(gtk_widget_get_window(window));
  95         return !!(state & GDK_WINDOW_STATE_MAXIMIZED);
  96 }
  97
  98 /*
  99  *-----------------------------------------------------------------------------
 100  * Open browser with the help Documentation
 101  *-----------------------------------------------------------------------------
 102  */
 103
 104 static gchar *command_result(const gchar *binary, const gchar *command)
 105 {
 106         gchar *result = nullptr;
 107         FILE *f;
 108         gchar buf[2048];
 109         gint l;
 110
 111         if (!binary || binary[0] == '\0') return nullptr;
 112         if (!file_in_path(binary)) return nullptr;
 113
 114         if (!command || command[0] == '\0') return g_strdup(binary);
 115         if (command[0] == '!') return g_strdup(command + 1);
 116
 117         f = popen(command, "r");
 118         if (!f) return nullptr;
 119
 120         while ((l = fread(buf, sizeof(gchar), sizeof(buf), f)) > 0)
 121                 {
 122                 if (!result)
 123                         {
 124                         gint n = 0;
 125
 126                         while (n < l && buf[n] != '\n' && buf[n] != '\r') n++;
 127                         if (n > 0) result = g_strndup(buf, n);
 128                         }
 129                 }
 130
 131         pclose(f);
 132
 133         return result;
 134 }
 135
 136 static int help_browser_command(const gchar *command, const gchar *path)
 137 {
 138         gchar *result;
 139         gchar *buf;
 140         gchar *begin;
 141         gchar *end;
 142         int retval = -1;
 143
 144         if (!command || !path) return retval;
 145
 146         DEBUG_1("Help command pre \"%s\", \"%s\"", command, path);
 147
 148         buf = g_strdup(command);
 149         begin = strstr(buf, "%s");
 150         if (begin)
 151                 {
 152                 *begin = '\0';
 153                 end = begin + 2;
 154                 begin = buf;
 155
 156                 result = g_strdup_printf("%s%s%s &", begin, path, end);
 157                 }
 158         else
 159                 {
 160                 result = g_strdup_printf("%s \"%s\" &", command, path);
 161                 }
 162         g_free(buf);
 163
 164         DEBUG_1("Help command post [%s]", result);
 165
 166         retval = runcmd(result);
 167         DEBUG_1("Help command exit code: %d", retval);
 168
 169         g_free(result);
 170         return retval;
 171 }
 172
 173 /*
 174  * each set of 2 strings is one browser:
 175  *   the 1st is the binary to look for in the path
 176  *   the 2nd has 3 capabilities:
 177  *        NULL     exec binary with html file path as command line
 178  *        string   exec string and use results for command line
 179  *        !string  use text following ! as command line, replacing optional %s with html file path
 180 */
 181 static const gchar *html_browsers[] =
 182 {
 183         /* Our specific script */
 184         GQ_APPNAME_LC "_html_browser", nullptr,
 185         /* Redhat has a nifty htmlview script to start the user's preferred browser */
 186         "htmlview",     nullptr,
 187         /* Debian has even better approach with alternatives */
 188         "sensible-browser", nullptr,
 189         /* GNOME 2 */
 190         "gconftool-2",  "gconftool-2 -g /desktop/gnome/url-handlers/http/command",
 191         /* KDE */
 192         "kfmclient",    "!kfmclient exec \"%s\"",
 193         /* use fallbacks */
 194         "firefox",      nullptr,
 195         "mozilla",      nullptr,
 196         "konqueror",    nullptr,
 197         "netscape",     nullptr,
 198         "opera",        "!opera --remote 'openURL(%s,new-page)'",
 199         nullptr,                nullptr
 200 };
 201
 202 static void help_browser_run(const gchar *path)
 203 {
 204         const gchar *name = options->helpers.html_browser.command_name;
 205         const gchar *cmd = options->helpers.html_browser.command_line;
 206         gchar *result = nullptr;
 207         gint i;
 208
 209         i = 0;
 210         while (!result)
 211                 {
 212                 if ((name && *name) || (cmd && *cmd)) {
 213                         DEBUG_1("Trying browser: name=%s command=%s", name, cmd);
 214                         result = command_result(name, cmd);
 215                         DEBUG_1("Result: %s", result);
 216                         if (result)
 217                                 {
 218                                 int ret = help_browser_command(result, path);
 219
 220                                 if (ret == 0) break;
 221                                 g_free(result);
 222                                 result = nullptr;
 223                         }
 224                 }
 225                 if (!html_browsers[i]) break;
 226                 name = html_browsers[i++];
 227                 cmd = html_browsers[i++];
 228                 }
 229
 230         if (!result)
 231                 {
 232                 log_printf("Unable to detect an installed browser.\n");
 233                 return;
 234                 }
 235
 236         g_free(result);
 237 }
 238
 239 /*
 240  *-----------------------------------------------------------------------------
 241  * help window
 242  *-----------------------------------------------------------------------------
 243  */
 244
 245 static GtkWidget *help_window = nullptr;
 246
 247 static void help_window_destroy_cb(GtkWidget *, gpointer)
 248 {
 249         help_window = nullptr;
 250 }
 251
 252 void help_window_show(const gchar *key)
 253 {
 254         gchar *path;
 255
 256         if (key && strstr(key, ".html") != nullptr)
 257                 {
 258                 path = g_build_filename(gq_htmldir, key, NULL);
 259                 if (!isfile(path))
 260                         {
 261                         if (g_strcmp0(key, "index.html") == 0)
 262                                 {
 263                                 path = g_build_filename("https://www.geeqie.org/help/", "GuideIndex.html", NULL);
 264                                 }
 265                         else
 266                                 {
 267                                 path = g_build_filename("https://www.geeqie.org/help/", key, NULL);
 268                                 }
 269                         }
 270                 help_browser_run(path);
 271                 g_free(path);
 272                 return;
 273                 }
 274
 275         if (help_window)
 276                 {
 277                 gtk_window_present(GTK_WINDOW(help_window));
 278                 if (key) help_window_set_key(help_window, key);
 279                 return;
 280                 }
 281
 282         if (!strcmp(key, "release_notes"))
 283                 {
 284                 path = g_build_filename(gq_helpdir, "README.html", NULL);
 285                 if (isfile(path))
 286                         {
 287                         g_free(path);
 288                         path = g_build_filename("file://", gq_helpdir, "README.html", NULL);
 289                         help_browser_run(path);
 290                         g_free(path);
 291                         }
 292                 else
 293                         {
 294                         g_free(path);
 295                         path = g_build_filename(gq_helpdir, "README.md", NULL);
 296                         help_window = help_window_new(_("Help"), "help", path, key);
 297                         g_free(path);
 298
 299                         g_signal_connect(G_OBJECT(help_window), "destroy",
 300                                          G_CALLBACK(help_window_destroy_cb), NULL);
 301                         }
 302                 }
 303         else
 304                 {
 305                 path = g_build_filename(gq_helpdir, "ChangeLog.html", NULL);
 306                 if (isfile(path))
 307                         {
 308                         g_free(path);
 309                         path = g_build_filename("file://", gq_helpdir, "ChangeLog.html", NULL);
 310                         help_browser_run(path);
 311                         g_free(path);
 312                         }
 313                 else
 314                         {
 315                         g_free(path);
 316                         path = g_build_filename(gq_helpdir, "ChangeLog", NULL);
 317                         help_window = help_window_new(_("Help"), "help", path, key);
 318                         g_free(path);
 319
 320                         g_signal_connect(G_OBJECT(help_window), "destroy",
 321                                          G_CALLBACK(help_window_destroy_cb), NULL);
 322                         }
 323
 324                 }
 325 }
 326
 327 /*
 328  *-----------------------------------------------------------------------------
 329  * on-line help search dialog
 330  *-----------------------------------------------------------------------------
 331  */
 332
 333 struct HelpSearchData {
 334         GenericDialog *gd;
 335         GtkWidget *edit_widget;
 336         gchar *text_entry;
 337 };
 338
 339 static void help_search_window_show_icon_press(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer userdata)
 340 {
 341         auto hsd = static_cast<HelpSearchData *>(userdata);
 342
 343         g_free(hsd->text_entry);
 344         hsd->text_entry = g_strdup("");
 345         gq_gtk_entry_set_text(GTK_ENTRY(hsd->edit_widget), hsd->text_entry);
 346 }
 347
 348 static void help_search_window_ok_cb(GenericDialog *, gpointer data)
 349 {
 350         auto hsd = static_cast<HelpSearchData *>(data);
 351         gchar *search_command;
 352
 353         search_command = g_strconcat(options->help_search_engine,
 354                                                 gq_gtk_entry_get_text(GTK_ENTRY(hsd->edit_widget)),
 355                                                 NULL);
 356         help_browser_run(search_command);
 357         g_free(search_command);
 358
 359         g_free(hsd);
 360 }
 361
 362 static void help_search_window_cancel_cb(GenericDialog *, gpointer data)
 363 {
 364         auto hsd = static_cast<HelpSearchData *>(data);
 365
 366         g_free(hsd);
 367 }
 368
 369 void help_search_window_show()
 370 {
 371         GenericDialog *gd;
 372         GtkWidget *table;
 373         GtkWidget *label1;
 374         GtkWidget *label2;
 375
 376         auto hsd = g_new0(HelpSearchData, 1);
 377         hsd->gd = gd = generic_dialog_new(_("On-line help search"), "help_search",
 378                                 nullptr, TRUE,
 379                                 help_search_window_cancel_cb, hsd);
 380         generic_dialog_add_message(gd, nullptr, _("Search the on-line help files.\n"), nullptr, FALSE);
 381
 382         generic_dialog_add_button(gd, GQ_ICON_OK, "OK",
 383                                   help_search_window_ok_cb, TRUE);
 384
 385         label1 = pref_label_new(GENERIC_DIALOG(gd)->vbox, _("Search engine:"));
 386         gtk_label_set_xalign(GTK_LABEL(label1), 0.0);
 387         gtk_label_set_yalign(GTK_LABEL(label1), 0.5);
 388
 389         label2 = pref_label_new(GENERIC_DIALOG(gd)->vbox, options->help_search_engine);
 390         gtk_label_set_xalign(GTK_LABEL(label2), 0.0);
 391         gtk_label_set_yalign(GTK_LABEL(label2), 0.5);
 392
 393         pref_spacer(GENERIC_DIALOG(gd)->vbox, 0);
 394
 395         table = pref_table_new(gd->vbox, 3, 1, FALSE, TRUE);
 396         pref_table_label(table, 0, 0, _("Search terms:"), GTK_ALIGN_END);
 397         hsd->edit_widget = gtk_entry_new();
 398         gtk_widget_set_size_request(hsd->edit_widget, 300, -1);
 399         gq_gtk_grid_attach_default(GTK_GRID(table), hsd->edit_widget, 1, 2, 0, 1);
 400         generic_dialog_attach_default(gd, hsd->edit_widget);
 401         gtk_widget_show(hsd->edit_widget);
 402
 403         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(hsd->edit_widget),
 404                                                 GTK_ENTRY_ICON_SECONDARY, GQ_ICON_CLEAR);
 405         gtk_entry_set_icon_tooltip_text (GTK_ENTRY(hsd->edit_widget),
 406                                                 GTK_ENTRY_ICON_SECONDARY, _("Clear"));
 407         g_signal_connect(GTK_ENTRY(hsd->edit_widget), "icon-press",
 408                                                 G_CALLBACK(help_search_window_show_icon_press), hsd);
 409
 410         gtk_widget_grab_focus(hsd->edit_widget);
 411
 412         gtk_widget_show(gd->dialog);
 413 }
 414 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */