src/vte.c

   1 /*
   2  *      vte.c - this file is part of Geany, a fast and lightweight IDE
   3  *
   4  *      Copyright 2005-2012 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
   5  *      Copyright 2006-2012 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
   6  *
   7  *      This program is free software; you can redistribute it and/or modify
   8  *      it under the terms of the GNU General Public License as published by
   9  *      the Free Software Foundation; either version 2 of the License, or
  10  *      (at your option) any later version.
  11  *
  12  *      This program is distributed in the hope that it will be useful,
  13  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *      GNU General Public License for more details.
  16  *
  17  *      You should have received a copy of the GNU General Public License along
  18  *      with this program; if not, write to the Free Software Foundation, Inc.,
  19  *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 /*
  23  * Virtual Terminal Emulation setup and handling code, using the libvte plugin library.
  24  */
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #ifdef HAVE_VTE
  31
  32 #include "vte.h"
  33
  34 #include "callbacks.h"
  35 #include "document.h"
  36 #include "geanyobject.h"
  37 #include "msgwindow.h"
  38 #include "prefs.h"
  39 #include "sciwrappers.h"
  40 #include "support.h"
  41 #include "ui_utils.h"
  42 #include "utils.h"
  43 #include "keybindings.h"
  44
  45 #include "gtkcompat.h"
  46
  47 /* include stdlib.h AND unistd.h, because on GNU/Linux pid_t seems to be
  48  * in stdlib.h, on FreeBSD in unistd.h, sys/types.h is needed for C89 */
  49 #include <stdlib.h>
  50 #include <sys/types.h>
  51 #include <unistd.h>
  52
  53 #include <gdk/gdkkeysyms.h>
  54 #include <signal.h>
  55 #include <string.h>
  56 #include <errno.h>
  57
  58
  59 VteInfo vte_info = { FALSE, FALSE, FALSE, NULL, NULL };
  60 VteConfig *vc;
  61
  62 static GPid pid = 0;
  63 static gboolean clean = TRUE;
  64 static GModule *module = NULL;
  65 static struct VteFunctions *vf;
  66 static gchar *gtk_menu_key_accel = NULL;
  67 static GtkWidget *terminal_label = NULL;
  68 static guint terminal_label_update_source = 0;
  69
  70 /* use vte wordchars to select paths */
  71 static const gchar VTE_WORDCHARS[] = "-A-Za-z0-9,./?%&#:_";
  72 static const gchar VTE_ADDITIONAL_WORDCHARS[] = "-,./?%&#:_";
  73
  74
  75 /* Incomplete VteTerminal struct from vte/vte.h. */
  76 typedef struct _VteTerminal VteTerminal;
  77 struct _VteTerminal
  78 {
  79         GtkWidget widget;
  80         GtkAdjustment *adjustment;
  81 };
  82
  83 #define VTE_TERMINAL(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), VTE_TYPE_TERMINAL, VteTerminal))
  84 #define VTE_TYPE_TERMINAL (vf->vte_terminal_get_type())
  85
  86 typedef enum {
  87         VTE_CURSOR_BLINK_SYSTEM,
  88         VTE_CURSOR_BLINK_ON,
  89         VTE_CURSOR_BLINK_OFF
  90 } VteTerminalCursorBlinkMode;
  91
  92 typedef enum {
  93         /* we don't care for the other possible values */
  94         VTE_PTY_DEFAULT = 0
  95 } VtePtyFlags;
  96
  97
  98 /* Holds function pointers we need to access the VTE API. */
  99 struct VteFunctions
 100 {
 101         guint (*vte_get_major_version) (void);
 102         guint (*vte_get_minor_version) (void);
 103         GtkWidget* (*vte_terminal_new) (void);
 104         pid_t (*vte_terminal_fork_command) (VteTerminal *terminal, const char *command, char **argv,
 105                                                                                 char **envv, const char *directory, gboolean lastlog,
 106                                                                                 gboolean utmp, gboolean wtmp);
 107         gboolean (*vte_terminal_spawn_sync) (VteTerminal *terminal, VtePtyFlags pty_flags,
 108                                                                                  const char *working_directory, char **argv, char **envv,
 109                                                                                  GSpawnFlags spawn_flags, GSpawnChildSetupFunc child_setup,
 110                                                                                  gpointer child_setup_data, GPid *child_pid,
 111                                                                                  GCancellable *cancellable, GError **error);
 112         void (*vte_terminal_set_size) (VteTerminal *terminal, glong columns, glong rows);
 113         void (*vte_terminal_set_word_chars) (VteTerminal *terminal, const char *spec);
 114         void (*vte_terminal_set_word_char_exceptions) (VteTerminal *terminal, const char *exceptions);
 115         void (*vte_terminal_set_mouse_autohide) (VteTerminal *terminal, gboolean setting);
 116         void (*vte_terminal_reset) (VteTerminal *terminal, gboolean full, gboolean clear_history);
 117         GType (*vte_terminal_get_type) (void);
 118         void (*vte_terminal_set_scroll_on_output) (VteTerminal *terminal, gboolean scroll);
 119         void (*vte_terminal_set_scroll_on_keystroke) (VteTerminal *terminal, gboolean scroll);
 120         void (*vte_terminal_set_font) (VteTerminal *terminal, const PangoFontDescription *font_desc);
 121         void (*vte_terminal_set_scrollback_lines) (VteTerminal *terminal, glong lines);
 122         gboolean (*vte_terminal_get_has_selection) (VteTerminal *terminal);
 123         void (*vte_terminal_copy_clipboard) (VteTerminal *terminal);
 124         void (*vte_terminal_paste_clipboard) (VteTerminal *terminal);
 125         void (*vte_terminal_set_color_foreground) (VteTerminal *terminal, const GdkColor *foreground);
 126         void (*vte_terminal_set_color_bold) (VteTerminal *terminal, const GdkColor *foreground);
 127         void (*vte_terminal_set_color_background) (VteTerminal *terminal, const GdkColor *background);
 128         void (*vte_terminal_feed_child) (VteTerminal *terminal, const char *data, glong length);
 129         void (*vte_terminal_im_append_menuitems) (VteTerminal *terminal, GtkMenuShell *menushell);
 130         void (*vte_terminal_set_cursor_blink_mode) (VteTerminal *terminal,
 131                                                                                                 VteTerminalCursorBlinkMode mode);
 132         void (*vte_terminal_set_cursor_blinks) (VteTerminal *terminal, gboolean blink);
 133         void (*vte_terminal_select_all) (VteTerminal *terminal);
 134         void (*vte_terminal_set_audible_bell) (VteTerminal *terminal, gboolean is_audible);
 135         GtkAdjustment* (*vte_terminal_get_adjustment) (VteTerminal *terminal);
 136 #if GTK_CHECK_VERSION(3, 0, 0)
 137         /* hack for the VTE 2.91 API using GdkRGBA: we wrap the API to keep using GdkColor on our side */
 138         void (*vte_terminal_set_color_foreground_rgba) (VteTerminal *terminal, const GdkRGBA *foreground);
 139         void (*vte_terminal_set_color_bold_rgba) (VteTerminal *terminal, const GdkRGBA *foreground);
 140         void (*vte_terminal_set_color_background_rgba) (VteTerminal *terminal, const GdkRGBA *background);
 141 #endif
 142 };
 143
 144
 145 static void create_vte(void);
 146 static void vte_start(GtkWidget *widget);
 147 static void vte_restart(GtkWidget *widget);
 148 static gboolean vte_button_pressed(GtkWidget *widget, GdkEventButton *event, gpointer user_data);
 149 static gboolean vte_keyrelease_cb(GtkWidget *widget, GdkEventKey *event, gpointer data);
 150 static gboolean vte_keypress_cb(GtkWidget *widget, GdkEventKey *event, gpointer data);
 151 static gboolean vte_register_symbols(GModule *module);
 152 static void vte_popup_menu_clicked(GtkMenuItem *menuitem, gpointer user_data);
 153 static GtkWidget *vte_create_popup_menu(void);
 154 static void vte_commit_cb(VteTerminal *vte, gchar *arg1, guint arg2, gpointer user_data);
 155 static void vte_drag_data_received(GtkWidget *widget, GdkDragContext *drag_context,
 156                                                                    gint x, gint y, GtkSelectionData *data, guint info, guint ltime);
 157
 158
 159 enum
 160 {
 161         POPUP_COPY,
 162         POPUP_PASTE,
 163         POPUP_SELECTALL,
 164         POPUP_CHANGEPATH,
 165         POPUP_RESTARTTERMINAL,
 166         POPUP_PREFERENCES,
 167         TARGET_UTF8_STRING = 0,
 168         TARGET_TEXT,
 169         TARGET_COMPOUND_TEXT,
 170         TARGET_STRING,
 171         TARGET_TEXT_PLAIN
 172 };
 173
 174 static const GtkTargetEntry dnd_targets[] =
 175 {
 176   { "UTF8_STRING", 0, TARGET_UTF8_STRING },
 177   { "TEXT", 0, TARGET_TEXT },
 178   { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
 179   { "STRING", 0, TARGET_STRING },
 180   { "text/plain", 0, TARGET_TEXT_PLAIN },
 181 };
 182
 183
 184 /* replacement for vte_terminal_get_adjustment() when it's not available */
 185 static GtkAdjustment *default_vte_terminal_get_adjustment(VteTerminal *vte)
 186 {
 187 #if GTK_CHECK_VERSION(3, 0, 0)
 188         if (GTK_IS_SCROLLABLE(vte))
 189                 return gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
 190 #endif
 191         /* this is only valid in < 0.38, 0.38 broke ABI */
 192         return vte->adjustment;
 193 }
 194
 195
 196 #if GTK_CHECK_VERSION(3, 0, 0)
 197 /* Wrap VTE 2.91 API using GdkRGBA with GdkColor so we use a single API on our side */
 198
 199 static void rgba_from_color(GdkRGBA *rgba, const GdkColor *color)
 200 {
 201         rgba->red = color->red / 65535.0;
 202         rgba->green = color->green / 65535.0;
 203         rgba->blue = color->blue / 65535.0;
 204         rgba->alpha = 1.0;
 205 }
 206
 207 #       define WRAP_RGBA_SETTER(name) \
 208         static void wrap_##name(VteTerminal *terminal, const GdkColor *color) \
 209         { \
 210                 GdkRGBA rgba; \
 211                 rgba_from_color(&rgba, color); \
 212                 vf->name##_rgba(terminal, &rgba); \
 213         }
 214
 215 WRAP_RGBA_SETTER(vte_terminal_set_color_background)
 216 WRAP_RGBA_SETTER(vte_terminal_set_color_bold)
 217 WRAP_RGBA_SETTER(vte_terminal_set_color_foreground)
 218
 219 #       undef WRAP_RGBA_SETTER
 220 #endif
 221
 222
 223 static gchar **vte_get_child_environment(void)
 224 {
 225         const gchar *exclude_vars[] = {"COLUMNS", "LINES", "TERM", "TERM_PROGRAM", NULL};
 226
 227         return utils_copy_environment(exclude_vars, "TERM", "xterm", NULL);
 228 }
 229
 230
 231 static void override_menu_key(void)
 232 {
 233         if (gtk_menu_key_accel == NULL) /* for restoring the default value */
 234                 g_object_get(G_OBJECT(gtk_settings_get_default()),
 235                         "gtk-menu-bar-accel", &gtk_menu_key_accel, NULL);
 236
 237         if (vc->ignore_menu_bar_accel)
 238                 gtk_settings_set_string_property(gtk_settings_get_default(),
 239                         "gtk-menu-bar-accel", "<Shift><Control><Mod1><Mod2><Mod3><Mod4><Mod5>F10", "Geany");
 240         else
 241                 gtk_settings_set_string_property(gtk_settings_get_default(),
 242                         "gtk-menu-bar-accel", gtk_menu_key_accel, "Geany");
 243 }
 244
 245
 246 static void on_startup_complete(G_GNUC_UNUSED GObject *dummy)
 247 {
 248         GeanyDocument *doc = document_get_current();
 249
 250         if (doc)
 251                 vte_cwd((doc->real_path != NULL) ? doc->real_path : doc->file_name, FALSE);
 252 }
 253
 254
 255 void vte_init(void)
 256 {
 257         if (vte_info.have_vte == FALSE)
 258         {       /* vte_info.have_vte can be false even if VTE is compiled in, think of command line option */
 259                 geany_debug("Disabling terminal support");
 260                 return;
 261         }
 262
 263         if (!EMPTY(vte_info.lib_vte))
 264         {
 265                 module = g_module_open(vte_info.lib_vte, G_MODULE_BIND_LAZY);
 266         }
 267 #ifdef VTE_MODULE_PATH
 268         else
 269         {
 270                 module = g_module_open(VTE_MODULE_PATH, G_MODULE_BIND_LAZY);
 271         }
 272 #endif
 273
 274         if (module == NULL)
 275         {
 276                 gint i;
 277                 const gchar *sonames[] = {
 278 #if GTK_CHECK_VERSION(3, 0, 0)
 279 # ifdef __APPLE__
 280                         "libvte-2.91.0.dylib", "libvte-2.91.dylib",
 281                         "libvte2_90.9.dylib", "libvte2_90.dylib",
 282 # endif
 283                         "libvte-2.91.so", "libvte-2.91.so.0",
 284                         "libvte2_90.so", "libvte2_90.so.9",
 285 #else /* GTK 2 */
 286 # ifdef __APPLE__
 287                         "libvte.9.dylib", "libvte.dylib",
 288 # endif
 289                         "libvte.so", "libvte.so.9", "libvte.so.8", "libvte.so.4",
 290 #endif
 291                         NULL
 292                 };
 293
 294                 for (i = 0; sonames[i] != NULL && module == NULL; i++)
 295                 {
 296                         module = g_module_open(sonames[i], G_MODULE_BIND_LAZY);
 297                 }
 298         }
 299
 300         if (module == NULL)
 301         {
 302                 vte_info.have_vte = FALSE;
 303                 geany_debug("Could not load libvte.so, embedded terminal support disabled");
 304                 return;
 305         }
 306         else
 307         {
 308                 geany_debug("Loaded libvte from %s", g_module_name(module));
 309                 vf = g_new0(struct VteFunctions, 1);
 310                 if (vte_register_symbols(module))
 311                         vte_info.have_vte = TRUE;
 312                 else
 313                 {
 314                         vte_info.have_vte = FALSE;
 315                         g_free(vf);
 316                         /* FIXME: is closing the module safe? see vte_close() and test on FreeBSD */
 317                         /*g_module_close(module);*/
 318                         module = NULL;
 319                         return;
 320                 }
 321         }
 322
 323         create_vte();
 324
 325         /* setup the F10 menu override (so it works before the widget is first realised). */
 326         override_menu_key();
 327
 328         g_signal_connect(geany_object, "geany-startup-complete", G_CALLBACK(on_startup_complete), NULL);
 329 }
 330
 331
 332 static void on_vte_realize(void)
 333 {
 334         /* the vte widget has to be realised before color changes take effect */
 335         vte_apply_user_settings();
 336
 337         if (vf->vte_terminal_im_append_menuitems && vc->im_submenu)
 338                 vf->vte_terminal_im_append_menuitems(VTE_TERMINAL(vc->vte), GTK_MENU_SHELL(vc->im_submenu));
 339 }
 340
 341
 342 static gboolean vte_start_idle(G_GNUC_UNUSED gpointer user_data)
 343 {
 344         vte_start(vc->vte);
 345         return FALSE;
 346 }
 347
 348
 349 static void create_vte(void)
 350 {
 351         GtkWidget *vte, *scrollbar, *hbox;
 352
 353         vc->vte = vte = vf->vte_terminal_new();
 354         scrollbar = gtk_vscrollbar_new(vf->vte_terminal_get_adjustment(VTE_TERMINAL(vte)));
 355         gtk_widget_set_can_focus(scrollbar, FALSE);
 356
 357         /* create menu now so copy/paste shortcuts work */
 358         vc->menu = vte_create_popup_menu();
 359         g_object_ref_sink(vc->menu);
 360
 361         hbox = gtk_hbox_new(FALSE, 0);
 362         gtk_box_pack_start(GTK_BOX(hbox), vte, TRUE, TRUE, 0);
 363         gtk_box_pack_start(GTK_BOX(hbox), scrollbar, FALSE, FALSE, 0);
 364
 365         /* set the default widget size first to prevent VTE expanding too much,
 366          * sometimes causing the hscrollbar to be too big or out of view. */
 367         gtk_widget_set_size_request(GTK_WIDGET(vte), 10, 10);
 368         vf->vte_terminal_set_size(VTE_TERMINAL(vte), 30, 1);
 369
 370         vf->vte_terminal_set_mouse_autohide(VTE_TERMINAL(vte), TRUE);
 371         if (vf->vte_terminal_set_word_chars)
 372                 vf->vte_terminal_set_word_chars(VTE_TERMINAL(vte), VTE_WORDCHARS);
 373         else if (vf->vte_terminal_set_word_char_exceptions)
 374                 vf->vte_terminal_set_word_char_exceptions(VTE_TERMINAL(vte), VTE_ADDITIONAL_WORDCHARS);
 375
 376         gtk_drag_dest_set(vte, GTK_DEST_DEFAULT_ALL,
 377                 dnd_targets, G_N_ELEMENTS(dnd_targets), GDK_ACTION_COPY);
 378
 379         g_signal_connect(vte, "child-exited", G_CALLBACK(vte_start), NULL);
 380         g_signal_connect(vte, "button-press-event", G_CALLBACK(vte_button_pressed), NULL);
 381         g_signal_connect(vte, "event", G_CALLBACK(vte_keypress_cb), NULL);
 382         g_signal_connect(vte, "key-release-event", G_CALLBACK(vte_keyrelease_cb), NULL);
 383         g_signal_connect(vte, "commit", G_CALLBACK(vte_commit_cb), NULL);
 384         g_signal_connect(vte, "motion-notify-event", G_CALLBACK(on_motion_event), NULL);
 385         g_signal_connect(vte, "drag-data-received", G_CALLBACK(vte_drag_data_received), NULL);
 386
 387         /* start shell on idle otherwise the initial prompt can get corrupted */
 388         g_idle_add(vte_start_idle, NULL);
 389
 390         gtk_widget_show_all(hbox);
 391         terminal_label = gtk_label_new(_("Terminal"));
 392         gtk_notebook_insert_page(GTK_NOTEBOOK(msgwindow.notebook), hbox, terminal_label, MSG_VTE);
 393
 394         g_signal_connect_after(vte, "realize", G_CALLBACK(on_vte_realize), NULL);
 395 }
 396
 397
 398 void vte_close(void)
 399 {
 400         g_free(vf);
 401         /* free the vte widget before unloading vte module
 402          * this prevents a segfault on X close window if the message window is hidden */
 403         gtk_widget_destroy(vc->vte);
 404         gtk_widget_destroy(vc->menu);
 405         g_object_unref(vc->menu);
 406         g_free(vc->shell);
 407         g_free(vc->font);
 408         g_free(vc->send_cmd_prefix);
 409         g_free(vc);
 410         g_free(gtk_menu_key_accel);
 411         /* Don't unload the module explicitly because it causes a segfault on FreeBSD. The segfault
 412          * happens when the app really exits, not directly on g_module_close(). This still needs to
 413          * be investigated. */
 414         /*g_module_close(module); */
 415 }
 416
 417
 418 static gboolean set_dirty_idle(gpointer user_data)
 419 {
 420         gtk_widget_set_name(terminal_label, "geany-terminal-dirty");
 421         terminal_label_update_source = 0;
 422         return FALSE;
 423 }
 424
 425
 426 static void set_clean(gboolean value)
 427 {
 428         if (clean != value)
 429         {
 430                 if (terminal_label)
 431                 {
 432                         if (terminal_label_update_source > 0)
 433                         {
 434                                 g_source_remove(terminal_label_update_source);
 435                                 terminal_label_update_source = 0;
 436                         }
 437                         if (value)
 438                                 gtk_widget_set_name(terminal_label, NULL);
 439                         else
 440                                 terminal_label_update_source = g_timeout_add(150, set_dirty_idle, NULL);
 441                 }
 442                 clean = value;
 443         }
 444 }
 445
 446
 447 static gboolean vte_keyrelease_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 448 {
 449         if (ui_is_keyval_enter_or_return(event->keyval) ||
 450                 ((event->keyval == GDK_c) && (event->state & GDK_CONTROL_MASK)))
 451         {
 452                 /* assume any text on the prompt has been executed when pressing Enter/Return */
 453                 set_clean(TRUE);
 454         }
 455         return FALSE;
 456 }
 457
 458
 459 static gboolean vte_keypress_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 460 {
 461         if (vc->enable_bash_keys)
 462                 return FALSE;   /* Ctrl-[CD] will be handled by the VTE itself */
 463
 464         if (event->type != GDK_KEY_RELEASE)
 465                 return FALSE;
 466
 467         if ((event->keyval == GDK_c ||
 468                 event->keyval == GDK_d ||
 469                 event->keyval == GDK_C ||
 470                 event->keyval == GDK_D) &&
 471                 event->state & GDK_CONTROL_MASK &&
 472                 ! (event->state & GDK_SHIFT_MASK) && ! (event->state & GDK_MOD1_MASK))
 473         {
 474                 vte_restart(widget);
 475                 return TRUE;
 476         }
 477         return FALSE;
 478 }
 479
 480
 481 static void vte_commit_cb(VteTerminal *vte, gchar *arg1, guint arg2, gpointer user_data)
 482 {
 483         set_clean(FALSE);
 484 }
 485
 486
 487 static void vte_start(GtkWidget *widget)
 488 {
 489         /* split the shell command line, so arguments will work too */
 490         gchar **argv = g_strsplit(vc->shell, " ", -1);
 491
 492         if (argv != NULL)
 493         {
 494                 gchar **env = vte_get_child_environment();
 495
 496                 if (vf->vte_terminal_spawn_sync)
 497                 {
 498                         if (! vf->vte_terminal_spawn_sync(VTE_TERMINAL(widget), VTE_PTY_DEFAULT,
 499                                                                                           vte_info.dir, argv, env, 0, NULL, NULL,
 500                                                                                           &pid, NULL, NULL))
 501                         {
 502                                 pid = -1;
 503                         }
 504                 }
 505                 else
 506                 {
 507                         pid = vf->vte_terminal_fork_command(VTE_TERMINAL(widget), argv[0], argv, env,
 508                                                                                                 vte_info.dir, TRUE, TRUE, TRUE);
 509                 }
 510                 g_strfreev(env);
 511                 g_strfreev(argv);
 512         }
 513         else
 514                 pid = 0; /* use 0 as invalid pid */
 515
 516         set_clean(TRUE);
 517 }
 518
 519
 520 static void vte_restart(GtkWidget *widget)
 521 {
 522         vte_get_working_directory(); /* try to keep the working directory when restarting the VTE */
 523         if (pid > 0)
 524         {
 525                 kill(pid, SIGINT);
 526                 pid = 0;
 527         }
 528         vf->vte_terminal_reset(VTE_TERMINAL(widget), TRUE, TRUE);
 529         set_clean(TRUE);
 530 }
 531
 532
 533 static gboolean vte_button_pressed(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 534 {
 535         if (event->button == 3)
 536         {
 537                 gtk_widget_grab_focus(vc->vte);
 538                 gtk_menu_popup(GTK_MENU(vc->menu), NULL, NULL, NULL, NULL, event->button, event->time);
 539         }
 540         else if (event->button == 2)
 541         {
 542                 gtk_widget_grab_focus(widget);
 543         }
 544         return FALSE;
 545 }
 546
 547
 548 static void vte_set_cursor_blink_mode(void)
 549 {
 550         if (vf->vte_terminal_set_cursor_blink_mode != NULL)
 551                 /* vte >= 0.17.1 */
 552                 vf->vte_terminal_set_cursor_blink_mode(VTE_TERMINAL(vc->vte),
 553                         (vc->cursor_blinks) ? VTE_CURSOR_BLINK_ON : VTE_CURSOR_BLINK_OFF);
 554         else
 555                 /* vte < 0.17.1 */
 556                 vf->vte_terminal_set_cursor_blinks(VTE_TERMINAL(vc->vte), vc->cursor_blinks);
 557 }
 558
 559
 560 #if GTK_CHECK_VERSION(3, 0, 0)
 561 static gboolean vte_is_2_91(void)
 562 {
 563         guint major = vf->vte_get_major_version ? vf->vte_get_major_version() : 0;
 564         guint minor = vf->vte_get_minor_version ? vf->vte_get_minor_version() : 0;
 565
 566         /* 2.91 API started at 0.38 */
 567         return ((major > 0 || (major == 0 && minor >= 38)) ||
 568                 /* 0.38 doesn't have runtime version checks, so check a symbol that didn't exist before */
 569                 vf->vte_terminal_spawn_sync != NULL);
 570 }
 571 #endif
 572
 573
 574 static gboolean vte_register_symbols(GModule *mod)
 575 {
 576         #define BIND_SYMBOL_FULL(name, dest) \
 577                 g_module_symbol(mod, name, (void*)(dest))
 578         #define BIND_SYMBOL(field) \
 579                 BIND_SYMBOL_FULL(#field, &vf->field)
 580         #define BIND_REQUIRED_SYMBOL_FULL(name, dest) \
 581                 G_STMT_START { \
 582                         if (! BIND_SYMBOL_FULL(name, dest)) \
 583                         { \
 584                                 g_critical(_("invalid VTE library \"%s\": missing symbol \"%s\""), \
 585                                                 g_module_name(mod), name); \
 586                                 return FALSE; \
 587                         } \
 588                 } G_STMT_END
 589         #define BIND_REQUIRED_SYMBOL(field) \
 590                 BIND_REQUIRED_SYMBOL_FULL(#field, &vf->field)
 591         #define BIND_REQUIRED_SYMBOL_RGBA_WRAPPED(field) \
 592                 G_STMT_START { \
 593                         BIND_REQUIRED_SYMBOL_FULL(#field, &vf->field##_rgba); \
 594                         vf->field = wrap_##field; \
 595                 } G_STMT_END
 596
 597         BIND_SYMBOL(vte_get_major_version);
 598         BIND_SYMBOL(vte_get_minor_version);
 599         BIND_REQUIRED_SYMBOL(vte_terminal_new);
 600         BIND_REQUIRED_SYMBOL(vte_terminal_set_size);
 601         if (! BIND_SYMBOL(vte_terminal_spawn_sync))
 602                 /* vte_terminal_spawn_sync() is available only in 0.38 */
 603                 BIND_REQUIRED_SYMBOL(vte_terminal_fork_command);
 604         /* 0.38 removed vte_terminal_set_word_chars() */
 605         BIND_SYMBOL(vte_terminal_set_word_chars);
 606         /* 0.40 introduced it under a different API */
 607         BIND_SYMBOL(vte_terminal_set_word_char_exceptions);
 608         BIND_REQUIRED_SYMBOL(vte_terminal_set_mouse_autohide);
 609         BIND_REQUIRED_SYMBOL(vte_terminal_reset);
 610         BIND_REQUIRED_SYMBOL(vte_terminal_get_type);
 611         BIND_REQUIRED_SYMBOL(vte_terminal_set_scroll_on_output);
 612         BIND_REQUIRED_SYMBOL(vte_terminal_set_scroll_on_keystroke);
 613         BIND_REQUIRED_SYMBOL(vte_terminal_set_font);
 614         BIND_REQUIRED_SYMBOL(vte_terminal_set_scrollback_lines);
 615         BIND_REQUIRED_SYMBOL(vte_terminal_get_has_selection);
 616         BIND_REQUIRED_SYMBOL(vte_terminal_copy_clipboard);
 617         BIND_REQUIRED_SYMBOL(vte_terminal_paste_clipboard);
 618 #if GTK_CHECK_VERSION(3, 0, 0)
 619         if (vte_is_2_91())
 620         {
 621                 BIND_REQUIRED_SYMBOL_RGBA_WRAPPED(vte_terminal_set_color_foreground);
 622                 BIND_REQUIRED_SYMBOL_RGBA_WRAPPED(vte_terminal_set_color_bold);
 623                 BIND_REQUIRED_SYMBOL_RGBA_WRAPPED(vte_terminal_set_color_background);
 624         }
 625         else
 626 #endif
 627         {
 628                 BIND_REQUIRED_SYMBOL(vte_terminal_set_color_foreground);
 629                 BIND_REQUIRED_SYMBOL(vte_terminal_set_color_bold);
 630                 BIND_REQUIRED_SYMBOL(vte_terminal_set_color_background);
 631         }
 632         BIND_REQUIRED_SYMBOL(vte_terminal_feed_child);
 633         BIND_SYMBOL(vte_terminal_im_append_menuitems);
 634         if (! BIND_SYMBOL(vte_terminal_set_cursor_blink_mode))
 635                 /* vte_terminal_set_cursor_blink_mode() is only available since 0.17.1, so if we don't find
 636                  * this symbol, we are probably on an older version and use the old API instead */
 637                 BIND_REQUIRED_SYMBOL(vte_terminal_set_cursor_blinks);
 638         BIND_REQUIRED_SYMBOL(vte_terminal_select_all);
 639         BIND_REQUIRED_SYMBOL(vte_terminal_set_audible_bell);
 640         if (! BIND_SYMBOL(vte_terminal_get_adjustment))
 641                 /* vte_terminal_get_adjustment() is available since 0.9 and removed in 0.38 */
 642                 vf->vte_terminal_get_adjustment = default_vte_terminal_get_adjustment;
 643
 644         #undef BIND_REQUIRED_SYMBOL_RGBA_WRAPPED
 645         #undef BIND_REQUIRED_SYMBOL
 646         #undef BIND_REQUIRED_SYMBOL_FULL
 647         #undef BIND_SYMBOL
 648         #undef BIND_SYMBOL_FULL
 649
 650         return TRUE;
 651 }
 652
 653
 654 void vte_apply_user_settings(void)
 655 {
 656         PangoFontDescription *font_desc;
 657
 658         if (! ui_prefs.msgwindow_visible)
 659                 return;
 660
 661         vf->vte_terminal_set_scrollback_lines(VTE_TERMINAL(vc->vte), vc->scrollback_lines);
 662         vf->vte_terminal_set_scroll_on_keystroke(VTE_TERMINAL(vc->vte), vc->scroll_on_key);
 663         vf->vte_terminal_set_scroll_on_output(VTE_TERMINAL(vc->vte), vc->scroll_on_out);
 664         font_desc = pango_font_description_from_string(vc->font);
 665         vf->vte_terminal_set_font(VTE_TERMINAL(vc->vte), font_desc);
 666         pango_font_description_free(font_desc);
 667         vf->vte_terminal_set_color_foreground(VTE_TERMINAL(vc->vte), &vc->colour_fore);
 668         vf->vte_terminal_set_color_bold(VTE_TERMINAL(vc->vte), &vc->colour_fore);
 669         vf->vte_terminal_set_color_background(VTE_TERMINAL(vc->vte), &vc->colour_back);
 670         vf->vte_terminal_set_audible_bell(VTE_TERMINAL(vc->vte), prefs.beep_on_errors);
 671         vte_set_cursor_blink_mode();
 672
 673         override_menu_key();
 674 }
 675
 676
 677 static void vte_popup_menu_clicked(GtkMenuItem *menuitem, gpointer user_data)
 678 {
 679         switch (GPOINTER_TO_INT(user_data))
 680         {
 681                 case POPUP_COPY:
 682                 {
 683                         if (vf->vte_terminal_get_has_selection(VTE_TERMINAL(vc->vte)))
 684                                 vf->vte_terminal_copy_clipboard(VTE_TERMINAL(vc->vte));
 685                         break;
 686                 }
 687                 case POPUP_PASTE:
 688                 {
 689                         vf->vte_terminal_paste_clipboard(VTE_TERMINAL(vc->vte));
 690                         break;
 691                 }
 692                 case POPUP_SELECTALL:
 693                 {
 694                         vte_select_all();
 695                         break;
 696                 }
 697                 case POPUP_CHANGEPATH:
 698                 {
 699                         GeanyDocument *doc = document_get_current();
 700                         if (doc != NULL)
 701                                 vte_cwd(doc->file_name, TRUE);
 702                         break;
 703                 }
 704                 case POPUP_RESTARTTERMINAL:
 705                 {
 706                         vte_restart(vc->vte);
 707                         break;
 708                 }
 709                 case POPUP_PREFERENCES:
 710                 {
 711                         GtkWidget *notebook, *tab_page;
 712
 713                         prefs_show_dialog();
 714
 715                         notebook = ui_lookup_widget(ui_widgets.prefs_dialog, "notebook2");
 716                         tab_page = ui_lookup_widget(ui_widgets.prefs_dialog, "frame_term");
 717
 718                         gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook),
 719                                 gtk_notebook_page_num(GTK_NOTEBOOK(notebook), GTK_WIDGET(tab_page)));
 720
 721                         break;
 722                 }
 723         }
 724 }
 725
 726
 727 static GtkWidget *vte_create_popup_menu(void)
 728 {
 729         GtkWidget *menu, *item;
 730         GtkAccelGroup *accel_group;
 731         gboolean show_im_menu = TRUE;
 732
 733         menu = gtk_menu_new();
 734
 735         accel_group = gtk_accel_group_new();
 736         gtk_window_add_accel_group(GTK_WINDOW(main_widgets.window), accel_group);
 737
 738         item = gtk_image_menu_item_new_from_stock(GTK_STOCK_COPY, NULL);
 739         gtk_widget_add_accelerator(item, "activate", accel_group,
 740                 GDK_c, GEANY_PRIMARY_MOD_MASK | GDK_SHIFT_MASK, GTK_ACCEL_VISIBLE);
 741         gtk_widget_show(item);
 742         gtk_container_add(GTK_CONTAINER(menu), item);
 743         g_signal_connect(item, "activate", G_CALLBACK(vte_popup_menu_clicked), GINT_TO_POINTER(POPUP_COPY));
 744
 745         item = gtk_image_menu_item_new_from_stock(GTK_STOCK_PASTE, NULL);
 746         gtk_widget_add_accelerator(item, "activate", accel_group,
 747                 GDK_v, GEANY_PRIMARY_MOD_MASK | GDK_SHIFT_MASK, GTK_ACCEL_VISIBLE);
 748         gtk_widget_show(item);
 749         gtk_container_add(GTK_CONTAINER(menu), item);
 750         g_signal_connect(item, "activate", G_CALLBACK(vte_popup_menu_clicked), GINT_TO_POINTER(POPUP_PASTE));
 751
 752         item = gtk_separator_menu_item_new();
 753         gtk_widget_show(item);
 754         gtk_container_add(GTK_CONTAINER(menu), item);
 755
 756         item = gtk_image_menu_item_new_from_stock(GTK_STOCK_SELECT_ALL, NULL);
 757         gtk_widget_show(item);
 758         gtk_container_add(GTK_CONTAINER(menu), item);
 759         g_signal_connect(item, "activate", G_CALLBACK(vte_popup_menu_clicked), GINT_TO_POINTER(POPUP_SELECTALL));
 760
 761         item = gtk_separator_menu_item_new();
 762         gtk_widget_show(item);
 763         gtk_container_add(GTK_CONTAINER(menu), item);
 764
 765         item = gtk_image_menu_item_new_with_mnemonic(_("_Set Path From Document"));
 766         gtk_widget_show(item);
 767         gtk_container_add(GTK_CONTAINER(menu), item);
 768         g_signal_connect(item, "activate", G_CALLBACK(vte_popup_menu_clicked), GINT_TO_POINTER(POPUP_CHANGEPATH));
 769
 770         item = gtk_image_menu_item_new_with_mnemonic(_("_Restart Terminal"));
 771         gtk_widget_show(item);
 772         gtk_container_add(GTK_CONTAINER(menu), item);
 773         g_signal_connect(item, "activate", G_CALLBACK(vte_popup_menu_clicked), GINT_TO_POINTER(POPUP_RESTARTTERMINAL));
 774
 775         item = gtk_separator_menu_item_new();
 776         gtk_widget_show(item);
 777         gtk_container_add(GTK_CONTAINER(menu), item);
 778
 779         item = gtk_image_menu_item_new_from_stock(GTK_STOCK_PREFERENCES, NULL);
 780         gtk_widget_show(item);
 781         gtk_container_add(GTK_CONTAINER(menu), item);
 782         g_signal_connect(item, "activate", G_CALLBACK(vte_popup_menu_clicked), GINT_TO_POINTER(POPUP_PREFERENCES));
 783
 784         msgwin_menu_add_common_items(GTK_MENU(menu));
 785
 786         /* VTE 2.91 doesn't have IM context items, and GTK >= 3.10 doesn't show them anyway */
 787         if (! vf->vte_terminal_im_append_menuitems || gtk_check_version(3, 10, 0) == NULL)
 788                 show_im_menu = FALSE;
 789         else /* otherwise, query the setting */
 790                 g_object_get(gtk_settings_get_default(), "gtk-show-input-method-menu", &show_im_menu, NULL);
 791
 792         if (! show_im_menu)
 793                 vc->im_submenu = NULL;
 794         else
 795         {
 796                 item = gtk_separator_menu_item_new();
 797                 gtk_widget_show(item);
 798                 gtk_container_add(GTK_CONTAINER(menu), item);
 799
 800                 /* the IM submenu should always be the last item to be consistent with other GTK popup menus */
 801                 vc->im_submenu = gtk_menu_new();
 802
 803                 item = gtk_image_menu_item_new_with_mnemonic(_("_Input Methods"));
 804                 gtk_widget_show(item);
 805                 gtk_container_add(GTK_CONTAINER(menu), item);
 806
 807                 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), vc->im_submenu);
 808                 /* submenu populated after vte realized */
 809         }
 810
 811         return menu;
 812 }
 813
 814
 815 /* If the command could be executed, TRUE is returned, FALSE otherwise (i.e. there was some text
 816  * on the prompt). */
 817 gboolean vte_send_cmd(const gchar *cmd)
 818 {
 819         if (clean)
 820         {
 821                 vf->vte_terminal_feed_child(VTE_TERMINAL(vc->vte), cmd, strlen(cmd));
 822                 set_clean(TRUE); /* vte_terminal_feed_child() also marks the vte as not clean */
 823                 return TRUE;
 824         }
 825         else
 826                 return FALSE;
 827 }
 828
 829
 830 /* Taken from Terminal by os-cillation: terminal_screen_get_working_directory, thanks.
 831  * Determines the working directory using various OS-specific mechanisms and stores the determined
 832  * directory in vte_info.dir. Note: vte_info.dir contains the real path. */
 833 const gchar *vte_get_working_directory(void)
 834 {
 835         if (pid > 0)
 836         {
 837                 gchar  buffer[4096 + 1];
 838                 gchar *file = g_strdup_printf("/proc/%d/cwd", pid);
 839                 gint   length = readlink(file, buffer, sizeof(buffer));
 840
 841                 if (length > 0 && *buffer == '/')
 842                 {
 843                         buffer[length] = '\0';
 844                         g_free(vte_info.dir);
 845                         vte_info.dir = g_strdup(buffer);
 846                 }
 847                 else if (length == 0)
 848                 {
 849                         gchar *cwd = g_get_current_dir();
 850
 851                         if (cwd != NULL)
 852                         {
 853                                 if (chdir(file) == 0)
 854                                 {
 855                                         g_free(vte_info.dir);
 856                                         vte_info.dir = g_get_current_dir();
 857                                         if (chdir(cwd) != 0)
 858                                                 geany_debug("%s: %s", G_STRFUNC, g_strerror(errno));
 859                                 }
 860                                 g_free(cwd);
 861                         }
 862                 }
 863                 g_free(file);
 864         }
 865
 866         return vte_info.dir;
 867 }
 868
 869
 870 /* Changes the current working directory of the VTE to the path of the given filename.
 871  * filename is expected to be in UTF-8 encoding.
 872  * filename can also be a path, then it is used directly.
 873  * If force is set to TRUE, it will always change the cwd
 874  */
 875 void vte_cwd(const gchar *filename, gboolean force)
 876 {
 877         if (vte_info.have_vte && (vc->follow_path || force) &&
 878                 filename != NULL && g_path_is_absolute(filename))
 879         {
 880                 gchar *path;
 881
 882                 if (g_file_test(filename, G_FILE_TEST_IS_DIR))
 883                         path = g_strdup(filename);
 884                 else
 885                         path = g_path_get_dirname(filename);
 886
 887                 vte_get_working_directory(); /* refresh vte_info.dir */
 888                 if (! utils_str_equal(path, vte_info.dir))
 889                 {
 890                         /* use g_shell_quote to avoid problems with spaces, '!' or something else in path */
 891                         gchar *quoted_path = g_shell_quote(path);
 892                         gchar *cmd = g_strconcat(vc->send_cmd_prefix, "cd ", quoted_path, "\n", NULL);
 893                         if (! vte_send_cmd(cmd))
 894                         {
 895                                 const gchar *msg = _("Directory not changed because the terminal may contain some input (press Ctrl+C or Enter to clear it).");
 896                                 ui_set_statusbar(FALSE, "%s", msg);
 897                                 geany_debug("%s", msg);
 898                         }
 899                         g_free(quoted_path);
 900                         g_free(cmd);
 901                 }
 902                 g_free(path);
 903         }
 904 }
 905
 906
 907 static void vte_drag_data_received(GtkWidget *widget, GdkDragContext *drag_context,
 908                                                                    gint x, gint y, GtkSelectionData *data, guint info, guint ltime)
 909 {
 910         if (info == TARGET_TEXT_PLAIN)
 911         {
 912                 if (gtk_selection_data_get_format(data) == 8 && gtk_selection_data_get_length(data) > 0)
 913                         vf->vte_terminal_feed_child(VTE_TERMINAL(widget),
 914                                 (const gchar*) gtk_selection_data_get_data(data),
 915                                 gtk_selection_data_get_length(data));
 916         }
 917         else
 918         {
 919                 gchar *text = (gchar*) gtk_selection_data_get_text(data);
 920                 if (!EMPTY(text))
 921                         vf->vte_terminal_feed_child(VTE_TERMINAL(widget), text, strlen(text));
 922                 g_free(text);
 923         }
 924         gtk_drag_finish(drag_context, TRUE, FALSE, ltime);
 925 }
 926
 927
 928 static void on_check_run_in_vte_toggled(GtkToggleButton *togglebutton, GtkWidget *user_data)
 929 {
 930         g_return_if_fail(GTK_IS_WIDGET(user_data));
 931         gtk_widget_set_sensitive(user_data, gtk_toggle_button_get_active(togglebutton));
 932 }
 933
 934
 935 static void on_term_font_set(GtkFontButton *widget, gpointer user_data)
 936 {
 937         const gchar *fontbtn = gtk_font_button_get_font_name(widget);
 938
 939         if (! utils_str_equal(fontbtn, vc->font))
 940         {
 941                 SETPTR(vc->font, g_strdup(gtk_font_button_get_font_name(widget)));
 942                 vte_apply_user_settings();
 943         }
 944 }
 945
 946
 947 static void on_term_fg_color_set(GtkColorButton *widget, gpointer user_data)
 948 {
 949         gtk_color_button_get_color(widget, &vc->colour_fore);
 950 }
 951
 952
 953 static void on_term_bg_color_set(GtkColorButton *widget, gpointer user_data)
 954 {
 955         gtk_color_button_get_color(widget, &vc->colour_back);
 956 }
 957
 958
 959 void vte_append_preferences_tab(void)
 960 {
 961         if (vte_info.have_vte)
 962         {
 963                 GtkWidget *frame_term, *button_shell, *entry_shell;
 964                 GtkWidget *check_run_in_vte, *check_skip_script;
 965                 GtkWidget *font_button, *fg_color_button, *bg_color_button;
 966
 967                 button_shell = GTK_WIDGET(ui_lookup_widget(ui_widgets.prefs_dialog, "button_term_shell"));
 968                 entry_shell = GTK_WIDGET(ui_lookup_widget(ui_widgets.prefs_dialog, "entry_shell"));
 969                 ui_setup_open_button_callback(button_shell, NULL,
 970                         GTK_FILE_CHOOSER_ACTION_OPEN, GTK_ENTRY(entry_shell));
 971
 972                 check_skip_script = GTK_WIDGET(ui_lookup_widget(ui_widgets.prefs_dialog, "check_skip_script"));
 973                 gtk_widget_set_sensitive(check_skip_script, vc->run_in_vte);
 974
 975                 check_run_in_vte = GTK_WIDGET(ui_lookup_widget(ui_widgets.prefs_dialog, "check_run_in_vte"));
 976                 g_signal_connect(G_OBJECT(check_run_in_vte), "toggled",
 977                         G_CALLBACK(on_check_run_in_vte_toggled), check_skip_script);
 978
 979                 font_button = ui_lookup_widget(ui_widgets.prefs_dialog, "font_term");
 980                 g_signal_connect(font_button, "font-set",  G_CALLBACK(on_term_font_set), NULL);
 981
 982                 fg_color_button = ui_lookup_widget(ui_widgets.prefs_dialog, "color_fore");
 983                 g_signal_connect(fg_color_button, "color-set", G_CALLBACK(on_term_fg_color_set), NULL);
 984
 985                 bg_color_button = ui_lookup_widget(ui_widgets.prefs_dialog, "color_back");
 986                 g_signal_connect(bg_color_button, "color-set", G_CALLBACK(on_term_bg_color_set), NULL);
 987
 988                 frame_term = ui_lookup_widget(ui_widgets.prefs_dialog, "frame_term");
 989                 gtk_widget_show_all(frame_term);
 990         }
 991 }
 992
 993
 994 void vte_select_all(void)
 995 {
 996         if (vf->vte_terminal_select_all != NULL)
 997                 vf->vte_terminal_select_all(VTE_TERMINAL(vc->vte));
 998 }
 999
1000
1001 void vte_send_selection_to_vte(void)
1002 {
1003         GeanyDocument *doc;
1004         gchar *text;
1005         gsize len;
1006
1007         doc = document_get_current();
1008         g_return_if_fail(doc != NULL);
1009
1010         if (sci_has_selection(doc->editor->sci))
1011         {
1012                 text = sci_get_selection_contents(doc->editor->sci);
1013         }
1014         else
1015         {       /* Get the current line */
1016                 gint line_num = sci_get_current_line(doc->editor->sci);
1017                 text = sci_get_line(doc->editor->sci, line_num);
1018         }
1019
1020         len = strlen(text);
1021
1022         if (vc->send_selection_unsafe)
1023         {       /* Explicitly append a trailing newline character to get the command executed,
1024                    this is disabled by default as it could cause all sorts of damage. */
1025                 if (text[len-1] != '\n' && text[len-1] != '\r')
1026                 {
1027                         SETPTR(text, g_strconcat(text, "\n", NULL));
1028                         len++;
1029                 }
1030         }
1031         else
1032         {       /* Make sure there is no newline character at the end to prevent unwanted execution */
1033                 while (text[len-1] == '\n' || text[len-1] == '\r')
1034                 {
1035                         text[len-1] = '\0';
1036                         len--;
1037                 }
1038         }
1039
1040         vf->vte_terminal_feed_child(VTE_TERMINAL(vc->vte), text, len);
1041
1042         /* show the VTE */
1043         gtk_notebook_set_current_page(GTK_NOTEBOOK(msgwindow.notebook), MSG_VTE);
1044         gtk_widget_grab_focus(vc->vte);
1045         msgwin_show_hide(TRUE);
1046
1047         g_free(text);
1048 }
1049
1050
1051 #endif