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gui_gtk_x11.c
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gui_gtk_x11.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* Porting to GTK+ was done by:
*
* (C) 1998,1999,2000 by Marcin Dalecki <[email protected]>
*
* With GREAT support and continuous encouragements by Andy Kahn and of
* course Bram Moolenaar!
*
* Support for GTK+ 2 was added by:
*
* (C) 2002,2003 Jason Hildebrand <[email protected]>
* Daniel Elstner <[email protected]>
*
* Support for GTK+ 3 was added by:
*
* 2016 Kazunobu Kuriyama <[email protected]>
*/
#include "vim.h"
#ifdef USE_GRESOURCE
#include "auto/gui_gtk_gresources.h"
#endif
#ifdef FEAT_GUI_GNOME
// Gnome redefines _() and N_(). Grrr...
# ifdef _
# undef _
# endif
# ifdef N_
# undef N_
# endif
# ifdef textdomain
# undef textdomain
# endif
# ifdef bindtextdomain
# undef bindtextdomain
# endif
# ifdef bind_textdomain_codeset
# undef bind_textdomain_codeset
# endif
# if defined(FEAT_GETTEXT) && !defined(ENABLE_NLS)
# define ENABLE_NLS // so the texts in the dialog boxes are translated
# endif
# include <gnome.h>
# include "version.h"
// missing prototype in bonobo-dock-item.h
extern void bonobo_dock_item_set_behavior(BonoboDockItem *dock_item, BonoboDockItemBehavior beh);
#endif
#if !defined(FEAT_GUI_GTK) && defined(PROTO)
// When generating prototypes we don't want syntax errors.
# define GdkAtom int
# define GdkEventExpose int
# define GdkEventFocus int
# define GdkEventVisibility int
# define GdkEventProperty int
# define GtkContainer int
# define GtkTargetEntry int
# define GtkType int
# define GtkWidget int
# define gint int
# define gpointer int
# define guint int
# define GdkEventKey int
# define GdkEventSelection int
# define GtkSelectionData int
# define GdkEventMotion int
# define GdkEventButton int
# define GdkDragContext int
# define GdkEventConfigure int
# define GdkEventClient int
#else
# if GTK_CHECK_VERSION(3,0,0)
# include <gdk/gdkkeysyms-compat.h>
# include <gtk/gtkx.h>
# else
# include <gdk/gdkkeysyms.h>
# endif
# include <gdk/gdk.h>
# ifdef MSWIN
# include <gdk/gdkwin32.h>
# else
# include <gdk/gdkx.h>
# endif
# include <gtk/gtk.h>
# include "gui_gtk_f.h"
#endif
#ifdef HAVE_X11_SUNKEYSYM_H
# include <X11/Sunkeysym.h>
#endif
/*
* Easy-to-use macro for multihead support.
*/
#define GET_X_ATOM(atom) gdk_x11_atom_to_xatom_for_display( \
gtk_widget_get_display(gui.mainwin), atom)
// Selection type distinguishers
enum
{
TARGET_TYPE_NONE,
TARGET_UTF8_STRING,
TARGET_STRING,
TARGET_COMPOUND_TEXT,
TARGET_HTML,
TARGET_TEXT,
TARGET_TEXT_URI_LIST,
TARGET_TEXT_PLAIN,
TARGET_TEXT_PLAIN_UTF8,
TARGET_VIM,
TARGET_VIMENC
};
/*
* Table of selection targets supported by Vim.
* Note: Order matters, preferred types should come first.
*/
static const GtkTargetEntry selection_targets[] =
{
{VIMENC_ATOM_NAME, 0, TARGET_VIMENC},
{VIM_ATOM_NAME, 0, TARGET_VIM},
{"text/html", 0, TARGET_HTML},
{"UTF8_STRING", 0, TARGET_UTF8_STRING},
{"COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT},
{"TEXT", 0, TARGET_TEXT},
{"STRING", 0, TARGET_STRING},
{"text/plain;charset=utf-8", 0, TARGET_TEXT_PLAIN_UTF8},
{"text/plain", 0, TARGET_TEXT_PLAIN}
};
#define N_SELECTION_TARGETS ARRAY_LENGTH(selection_targets)
#ifdef FEAT_DND
/*
* Table of DnD targets supported by Vim.
* Note: Order matters, preferred types should come first.
*/
static const GtkTargetEntry dnd_targets[] =
{
{"text/uri-list", 0, TARGET_TEXT_URI_LIST},
{"text/html", 0, TARGET_HTML},
{"UTF8_STRING", 0, TARGET_UTF8_STRING},
{"STRING", 0, TARGET_STRING},
{"text/plain", 0, TARGET_TEXT_PLAIN}
};
# define N_DND_TARGETS ARRAY_LENGTH(dnd_targets)
#endif
/*
* "Monospace" is a standard font alias that should be present
* on all proper Pango/fontconfig installations.
*/
# define DEFAULT_FONT "Monospace 10"
#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)
# define USE_GNOME_SESSION
#endif
#if !defined(FEAT_GUI_GNOME)
/*
* Atoms used to communicate save-yourself from the X11 session manager. There
* is no need to move them into the GUI struct, since they should be constant.
*/
static GdkAtom wm_protocols_atom = GDK_NONE;
static GdkAtom save_yourself_atom = GDK_NONE;
#endif
/*
* Atoms used to control/reference X11 selections.
*/
static GdkAtom html_atom = GDK_NONE;
static GdkAtom utf8_string_atom = GDK_NONE;
static GdkAtom vim_atom = GDK_NONE; // Vim's own special selection format
static GdkAtom vimenc_atom = GDK_NONE; // Vim's extended selection format
/*
* Keycodes recognized by vim.
* NOTE: when changing this, the table in gui_x11.c probably needs the same
* change!
*/
static struct special_key
{
guint key_sym;
char_u code0;
char_u code1;
}
const special_keys[] =
{
{GDK_Up, 'k', 'u'},
{GDK_Down, 'k', 'd'},
{GDK_Left, 'k', 'l'},
{GDK_Right, 'k', 'r'},
{GDK_F1, 'k', '1'},
{GDK_F2, 'k', '2'},
{GDK_F3, 'k', '3'},
{GDK_F4, 'k', '4'},
{GDK_F5, 'k', '5'},
{GDK_F6, 'k', '6'},
{GDK_F7, 'k', '7'},
{GDK_F8, 'k', '8'},
{GDK_F9, 'k', '9'},
{GDK_F10, 'k', ';'},
{GDK_F11, 'F', '1'},
{GDK_F12, 'F', '2'},
{GDK_F13, 'F', '3'},
{GDK_F14, 'F', '4'},
{GDK_F15, 'F', '5'},
{GDK_F16, 'F', '6'},
{GDK_F17, 'F', '7'},
{GDK_F18, 'F', '8'},
{GDK_F19, 'F', '9'},
{GDK_F20, 'F', 'A'},
{GDK_F21, 'F', 'B'},
{GDK_Pause, 'F', 'B'}, // Pause == F21 according to netbeans.txt
{GDK_F22, 'F', 'C'},
{GDK_F23, 'F', 'D'},
{GDK_F24, 'F', 'E'},
{GDK_F25, 'F', 'F'},
{GDK_F26, 'F', 'G'},
{GDK_F27, 'F', 'H'},
{GDK_F28, 'F', 'I'},
{GDK_F29, 'F', 'J'},
{GDK_F30, 'F', 'K'},
{GDK_F31, 'F', 'L'},
{GDK_F32, 'F', 'M'},
{GDK_F33, 'F', 'N'},
{GDK_F34, 'F', 'O'},
{GDK_F35, 'F', 'P'},
#ifdef SunXK_F36
{SunXK_F36, 'F', 'Q'},
{SunXK_F37, 'F', 'R'},
#endif
{GDK_Help, '%', '1'},
{GDK_Undo, '&', '8'},
{GDK_BackSpace, 'k', 'b'},
{GDK_Insert, 'k', 'I'},
{GDK_Delete, 'k', 'D'},
{GDK_3270_BackTab, 'k', 'B'},
{GDK_Clear, 'k', 'C'},
{GDK_Home, 'k', 'h'},
{GDK_End, '@', '7'},
{GDK_Prior, 'k', 'P'},
{GDK_Next, 'k', 'N'},
{GDK_Print, '%', '9'},
// Keypad keys:
{GDK_KP_Left, 'k', 'l'},
{GDK_KP_Right, 'k', 'r'},
{GDK_KP_Up, 'k', 'u'},
{GDK_KP_Down, 'k', 'd'},
{GDK_KP_Insert, KS_EXTRA, (char_u)KE_KINS},
{GDK_KP_Delete, KS_EXTRA, (char_u)KE_KDEL},
{GDK_KP_Home, 'K', '1'},
{GDK_KP_End, 'K', '4'},
{GDK_KP_Prior, 'K', '3'}, // page up
{GDK_KP_Next, 'K', '5'}, // page down
{GDK_KP_Add, 'K', '6'},
{GDK_KP_Subtract, 'K', '7'},
{GDK_KP_Divide, 'K', '8'},
{GDK_KP_Multiply, 'K', '9'},
{GDK_KP_Enter, 'K', 'A'},
{GDK_KP_Decimal, 'K', 'B'},
{GDK_KP_0, 'K', 'C'},
{GDK_KP_1, 'K', 'D'},
{GDK_KP_2, 'K', 'E'},
{GDK_KP_3, 'K', 'F'},
{GDK_KP_4, 'K', 'G'},
{GDK_KP_5, 'K', 'H'},
{GDK_KP_6, 'K', 'I'},
{GDK_KP_7, 'K', 'J'},
{GDK_KP_8, 'K', 'K'},
{GDK_KP_9, 'K', 'L'},
// End of list marker:
{0, 0, 0}
};
/*
* Flags for command line options table below.
*/
#define ARG_FONT 1
#define ARG_GEOMETRY 2
#define ARG_REVERSE 3
#define ARG_NOREVERSE 4
#define ARG_BACKGROUND 5
#define ARG_FOREGROUND 6
#define ARG_ICONIC 7
#define ARG_ROLE 8
#define ARG_NETBEANS 9
#define ARG_XRM 10 // ignored
#define ARG_MENUFONT 11 // ignored
#define ARG_INDEX_MASK 0x00ff
#define ARG_HAS_VALUE 0x0100 // a value is expected after the argument
#define ARG_NEEDS_GUI 0x0200 // need to initialize the GUI for this
#define ARG_FOR_GTK 0x0400 // argument is handled by GTK+ or GNOME
#define ARG_COMPAT_LONG 0x0800 // accept -foo but substitute with --foo
#define ARG_KEEP 0x1000 // don't remove argument from argv[]
/*
* This table holds all the X GUI command line options allowed. This includes
* the standard ones so that we can skip them when Vim is started without the
* GUI (but the GUI might start up later).
*
* When changing this, also update doc/gui_x11.txt and the usage message!!!
*/
typedef struct
{
const char *name;
unsigned int flags;
}
cmdline_option_T;
static const cmdline_option_T cmdline_options[] =
{
// We handle these options ourselves
{"-fn", ARG_FONT|ARG_HAS_VALUE},
{"-font", ARG_FONT|ARG_HAS_VALUE},
{"-geom", ARG_GEOMETRY|ARG_HAS_VALUE},
{"-geometry", ARG_GEOMETRY|ARG_HAS_VALUE},
{"-rv", ARG_REVERSE},
{"-reverse", ARG_REVERSE},
{"+rv", ARG_NOREVERSE},
{"+reverse", ARG_NOREVERSE},
{"-bg", ARG_BACKGROUND|ARG_HAS_VALUE},
{"-background", ARG_BACKGROUND|ARG_HAS_VALUE},
{"-fg", ARG_FOREGROUND|ARG_HAS_VALUE},
{"-foreground", ARG_FOREGROUND|ARG_HAS_VALUE},
{"-iconic", ARG_ICONIC},
{"--role", ARG_ROLE|ARG_HAS_VALUE},
#ifdef FEAT_NETBEANS_INTG
{"-nb", ARG_NETBEANS}, // non-standard value format
{"-xrm", ARG_XRM|ARG_HAS_VALUE}, // not implemented
{"-mf", ARG_MENUFONT|ARG_HAS_VALUE}, // not implemented
{"-menufont", ARG_MENUFONT|ARG_HAS_VALUE}, // not implemented
#endif
// Arguments handled by GTK (and GNOME) internally.
{"--g-fatal-warnings", ARG_FOR_GTK},
{"--gdk-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gdk-no-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gtk-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gtk-no-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gtk-module", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sync", ARG_FOR_GTK},
{"--display", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
{"--name", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
{"--class", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
{"--screen", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gxid-host", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gxid-port", ARG_FOR_GTK|ARG_HAS_VALUE},
#ifdef FEAT_GUI_GNOME
{"--load-modules", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sm-client-id", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sm-config-prefix", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sm-disable", ARG_FOR_GTK},
{"--oaf-ior-fd", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--oaf-activate-iid", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--oaf-private", ARG_FOR_GTK},
{"--enable-sound", ARG_FOR_GTK},
{"--disable-sound", ARG_FOR_GTK},
{"--espeaker", ARG_FOR_GTK|ARG_HAS_VALUE},
{"-?", ARG_FOR_GTK|ARG_NEEDS_GUI},
{"--help", ARG_FOR_GTK|ARG_NEEDS_GUI|ARG_KEEP},
{"--usage", ARG_FOR_GTK|ARG_NEEDS_GUI},
# if 0 // conflicts with Vim's own --version argument
{"--version", ARG_FOR_GTK|ARG_NEEDS_GUI},
# endif
{"--disable-crash-dialog", ARG_FOR_GTK},
#endif
{NULL, 0}
};
static int gui_argc = 0;
static char **gui_argv = NULL;
static const char *role_argument = NULL;
#if defined(USE_GNOME_SESSION)
static const char *restart_command = NULL;
static char *abs_restart_command = NULL;
#endif
static int found_iconic_arg = FALSE;
#ifdef FEAT_GUI_GNOME
/*
* Can't use Gnome if --socketid given
*/
static int using_gnome = 0;
#else
# define using_gnome 0
#endif
// Comment out the following line to ignore code for resize history tracking.
#define TRACK_RESIZE_HISTORY
#ifdef TRACK_RESIZE_HISTORY
/*
* Keep a short term resize history so that stale gtk responses can be
* discarded.
* When a gtk_window_resize() request is sent to gtk, the width/height of
* the request is saved. Recent stale requests are kept around in a list.
* See https://github.com/vim/vim/issues/10123
*/
# if 0 // Change to 1 to enable ch_log() calls for debugging.
# ifdef FEAT_EVAL
# define ENABLE_RESIZE_HISTORY_LOG
# endif
# endif
/*
* History item of a resize request.
* Width and height are of gui.mainwin.
*/
typedef struct resize_history {
int used; // If true, can't match for discard. Only matches once.
int width;
int height;
# ifdef ENABLE_RESIZE_HISTORY_LOG
int seq; // for ch_log messages
# endif
struct resize_history *next;
} resize_hist_T;
// never NULL during execution
static resize_hist_T *latest_resize_hist;
// list of stale resize requests
static resize_hist_T *old_resize_hists;
/*
* Used when calling gtk_window_resize().
* Create a resize request history item, put previous request on stale list.
* Width/height are the size of the request for the gui.mainwin.
*/
static void
alloc_resize_hist(int width, int height)
{
// alloc a new resize hist, save current in list of old history
resize_hist_T *prev_hist = latest_resize_hist;
resize_hist_T *new_hist = ALLOC_CLEAR_ONE(resize_hist_T);
new_hist->width = width;
new_hist->height = height;
latest_resize_hist = new_hist;
// previous hist item becomes head of list
prev_hist->next = old_resize_hists;
old_resize_hists = prev_hist;
# ifdef ENABLE_RESIZE_HISTORY_LOG
new_hist->seq = prev_hist->seq + 1;
ch_log(NULL, "gui_gtk: New resize seq %d (%d, %d) [%d, %d]",
new_hist->seq, width, height, (int)Columns, (int)Rows);
# endif
}
/*
* Free everything on the stale resize history list.
* This list is empty when there are no outstanding resize requests.
*/
static void
clear_resize_hists(void)
{
# ifdef ENABLE_RESIZE_HISTORY_LOG
int i = 0;
# endif
if (latest_resize_hist)
latest_resize_hist->used = TRUE;
while (old_resize_hists != NULL)
{
resize_hist_T *next_hist = old_resize_hists->next;
vim_free(old_resize_hists);
old_resize_hists = next_hist;
# ifdef ENABLE_RESIZE_HISTORY_LOG
i++;
# endif
}
# ifdef ENABLE_RESIZE_HISTORY_LOG
ch_log(NULL, "gui_gtk: free %d hists", i);
# endif
}
// true if hist item is unused and matches w,h
# define MATCH_WIDTH_HEIGHT(hist, w, h) \
(!hist->used && hist->width == w && hist->height == h)
/*
* Search the resize hist list.
* Return true if the specified width,height match an item in the list that
* has never matched before. Mark the matching item as used so it will
* not match again.
*/
static int
match_stale_width_height(int width, int height)
{
resize_hist_T *hist = old_resize_hists;
for (hist = old_resize_hists; hist != NULL; hist = hist->next)
if (MATCH_WIDTH_HEIGHT(hist, width, height))
{
# ifdef ENABLE_RESIZE_HISTORY_LOG
ch_log(NULL, "gui_gtk: discard seq %d, cur seq %d",
hist->seq, latest_resize_hist->seq);
# endif
hist->used = TRUE;
return TRUE;
}
return FALSE;
}
# if defined(EXITFREE)
static void
free_all_resize_hist(void)
{
clear_resize_hists();
vim_free(latest_resize_hist);
}
# endif
#endif
/*
* GTK doesn't set the GDK_BUTTON1_MASK state when dragging a touch. Add this
* state when dragging.
*/
static guint dragging_button_state = 0;
/*
* Parse the GUI related command-line arguments. Any arguments used are
* deleted from argv, and *argc is decremented accordingly. This is called
* when vim is started, whether or not the GUI has been started.
*/
void
gui_mch_prepare(int *argc, char **argv)
{
const cmdline_option_T *option;
int i = 0;
int len = 0;
#if defined(USE_GNOME_SESSION)
/*
* Determine the command used to invoke Vim, to be passed as restart
* command to the session manager. If argv[0] contains any directory
* components try building an absolute path, otherwise leave it as is.
*/
restart_command = argv[0];
if (strchr(argv[0], G_DIR_SEPARATOR) != NULL)
{
char_u buf[MAXPATHL];
if (mch_FullName((char_u *)argv[0], buf, (int)sizeof(buf), TRUE) == OK)
{
abs_restart_command = (char *)vim_strsave(buf);
restart_command = abs_restart_command;
}
}
#endif
/*
* Move all the entries in argv which are relevant to GTK+ and GNOME
* into gui_argv. Freed later in gui_mch_init().
*/
gui_argc = 0;
gui_argv = ALLOC_MULT(char *, *argc + 1);
g_return_if_fail(gui_argv != NULL);
gui_argv[gui_argc++] = argv[i++];
while (i < *argc)
{
// Don't waste CPU cycles on non-option arguments.
if (argv[i][0] != '-' && argv[i][0] != '+')
{
++i;
continue;
}
// Look for argv[i] in cmdline_options[] table.
for (option = &cmdline_options[0]; option->name != NULL; ++option)
{
len = strlen(option->name);
if (strncmp(argv[i], option->name, len) == 0)
{
if (argv[i][len] == '\0')
break;
// allow --foo=bar style
if (argv[i][len] == '=' && (option->flags & ARG_HAS_VALUE))
break;
#ifdef FEAT_NETBEANS_INTG
// darn, -nb has non-standard syntax
if (vim_strchr((char_u *)":=", argv[i][len]) != NULL
&& (option->flags & ARG_INDEX_MASK) == ARG_NETBEANS)
break;
#endif
}
else if ((option->flags & ARG_COMPAT_LONG)
&& strcmp(argv[i], option->name + 1) == 0)
{
// Replace the standard X arguments "-name" and "-display"
// with their GNU-style long option counterparts.
argv[i] = (char *)option->name;
break;
}
}
if (option->name == NULL) // no match
{
++i;
continue;
}
if (option->flags & ARG_FOR_GTK)
{
// Move the argument into gui_argv, which
// will later be passed to gtk_init_check()
gui_argv[gui_argc++] = argv[i];
}
else
{
char *value = NULL;
// Extract the option's value if there is one.
// Accept both "--foo bar" and "--foo=bar" style.
if (option->flags & ARG_HAS_VALUE)
{
if (argv[i][len] == '=')
value = &argv[i][len + 1];
else if (i + 1 < *argc && strcmp(argv[i + 1], "--") != 0)
value = argv[i + 1];
}
// Check for options handled by Vim itself
switch (option->flags & ARG_INDEX_MASK)
{
case ARG_REVERSE:
found_reverse_arg = TRUE;
break;
case ARG_NOREVERSE:
found_reverse_arg = FALSE;
break;
case ARG_FONT:
font_argument = value;
break;
case ARG_GEOMETRY:
if (value != NULL)
gui.geom = vim_strsave((char_u *)value);
break;
case ARG_BACKGROUND:
background_argument = value;
break;
case ARG_FOREGROUND:
foreground_argument = value;
break;
case ARG_ICONIC:
found_iconic_arg = TRUE;
break;
case ARG_ROLE:
role_argument = value; // used later in gui_mch_open()
break;
#ifdef FEAT_NETBEANS_INTG
case ARG_NETBEANS:
gui.dofork = FALSE; // don't fork() when starting GUI
netbeansArg = argv[i];
break;
#endif
default:
break;
}
}
// These arguments make gnome_program_init() print a message and exit.
// Must start the GUI for this, otherwise ":gui" will exit later!
// Only when the GUI can start.
if ((option->flags & ARG_NEEDS_GUI)
&& gui_mch_early_init_check(FALSE) == OK)
gui.starting = TRUE;
if (option->flags & ARG_KEEP)
++i;
else
{
// Remove the flag from the argument vector.
if (--*argc > i)
{
int n_strip = 1;
// Move the argument's value as well, if there is one.
if ((option->flags & ARG_HAS_VALUE)
&& argv[i][len] != '='
&& strcmp(argv[i + 1], "--") != 0)
{
++n_strip;
--*argc;
if (option->flags & ARG_FOR_GTK)
gui_argv[gui_argc++] = argv[i + 1];
}
if (*argc > i)
mch_memmove(&argv[i], &argv[i + n_strip],
(*argc - i) * sizeof(char *));
}
argv[*argc] = NULL;
}
}
gui_argv[gui_argc] = NULL;
}
#if defined(EXITFREE) || defined(PROTO)
void
gui_mch_free_all(void)
{
vim_free(gui_argv);
#if defined(USE_GNOME_SESSION)
vim_free(abs_restart_command);
#endif
#ifdef TRACK_RESIZE_HISTORY
free_all_resize_hist();
#endif
}
#endif
#if !GTK_CHECK_VERSION(3,0,0)
/*
* This should be maybe completely removed.
* Doesn't seem possible, since check_copy_area() relies on
* this information. --danielk
*/
static gint
visibility_event(GtkWidget *widget UNUSED,
GdkEventVisibility *event,
gpointer data UNUSED)
{
gui.visibility = event->state;
/*
* When we do an gdk_window_copy_area(), and the window is partially
* obscured, we want to receive an event to tell us whether it worked
* or not.
*/
if (gui.text_gc != NULL)
gdk_gc_set_exposures(gui.text_gc,
gui.visibility != GDK_VISIBILITY_UNOBSCURED);
return FALSE;
}
#endif // !GTK_CHECK_VERSION(3,0,0)
/*
* Redraw the corresponding portions of the screen.
*/
#if GTK_CHECK_VERSION(3,0,0)
static gboolean
draw_event(GtkWidget *widget UNUSED,
cairo_t *cr,
gpointer user_data UNUSED)
{
// Skip this when the GUI isn't set up yet, will redraw later.
if (gui.starting)
return FALSE;
out_flush(); // make sure all output has been processed
// for GTK+ 3, may induce other draw events.
cairo_set_source_surface(cr, gui.surface, 0, 0);
{
cairo_rectangle_list_t *list = NULL;
list = cairo_copy_clip_rectangle_list(cr);
if (list->status != CAIRO_STATUS_CLIP_NOT_REPRESENTABLE)
{
int i;
for (i = 0; i < list->num_rectangles; i++)
{
const cairo_rectangle_t *rect = &list->rectangles[i];
cairo_rectangle(cr, rect->x, rect->y,
rect->width, rect->height);
cairo_fill(cr);
}
}
cairo_rectangle_list_destroy(list);
}
return FALSE;
}
# if GTK_CHECK_VERSION(3,10,0)
static gboolean
scale_factor_event(GtkWidget *widget,
GParamSpec* pspec UNUSED,
gpointer user_data UNUSED)
{
if (gui.surface != NULL)
cairo_surface_destroy(gui.surface);
int w, h;
gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
gui.surface = gdk_window_create_similar_surface(
gtk_widget_get_window(widget),
CAIRO_CONTENT_COLOR_ALPHA,
w, h);
int usable_height = h;
if (gtk_socket_id != 0)
usable_height -= (gui.char_height - (gui.char_height/2)); // sic.
gui_gtk_form_freeze(GTK_FORM(gui.formwin));
gui.force_redraw = 1;
gui_resize_shell(w, usable_height);
gui_gtk_form_thaw(GTK_FORM(gui.formwin));
return TRUE;
}
# endif // GTK_CHECK_VERSION(3,10,0)
#else // !GTK_CHECK_VERSION(3,0,0)
static gint
expose_event(GtkWidget *widget UNUSED,
GdkEventExpose *event,
gpointer data UNUSED)
{
// Skip this when the GUI isn't set up yet, will redraw later.
if (gui.starting)
return FALSE;
out_flush(); // make sure all output has been processed
gui_redraw(event->area.x, event->area.y,
event->area.width, event->area.height);
// Clear the border areas if needed
if (event->area.x < FILL_X(0))
gdk_window_clear_area(gui.drawarea->window, 0, 0, FILL_X(0), 0);
if (event->area.y < FILL_Y(0))
gdk_window_clear_area(gui.drawarea->window, 0, 0, 0, FILL_Y(0));
if (event->area.x > FILL_X(Columns))
gdk_window_clear_area(gui.drawarea->window,
FILL_X((int)Columns), 0, 0, 0);
if (event->area.y > FILL_Y(Rows))
gdk_window_clear_area(gui.drawarea->window, 0, FILL_Y((int)Rows), 0, 0);
return FALSE;
}
#endif // !GTK_CHECK_VERSION(3,0,0)
#ifdef FEAT_CLIENTSERVER
/*
* Handle changes to the "Comm" property
*/
static gint
property_event(GtkWidget *widget,
GdkEventProperty *event,
gpointer data UNUSED)
{
if (event->type == GDK_PROPERTY_NOTIFY
&& event->state == (int)GDK_PROPERTY_NEW_VALUE
&& GDK_WINDOW_XID(event->window) == commWindow
&& GET_X_ATOM(event->atom) == commProperty)
{
XEvent xev;
// Translate to XLib
xev.xproperty.type = PropertyNotify;
xev.xproperty.atom = commProperty;
xev.xproperty.window = commWindow;
xev.xproperty.state = PropertyNewValue;
serverEventProc(GDK_WINDOW_XDISPLAY(gtk_widget_get_window(widget)),
&xev, 0);
}
return FALSE;
}
#endif // defined(FEAT_CLIENTSERVER)
/*
* Handle changes to the "Xft/DPI" setting
*/
static void
gtk_settings_xft_dpi_changed_cb(GtkSettings *gtk_settings UNUSED,
GParamSpec *pspec UNUSED,
gpointer data UNUSED)
{
// Create a new PangoContext for this screen, and initialize it
// with the current font if necessary.
if (gui.text_context != NULL)
g_object_unref(gui.text_context);
gui.text_context = gtk_widget_create_pango_context(gui.mainwin);
pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);
if (gui.norm_font != NULL)
{
// force default font
gui_mch_init_font(*p_guifont == NUL ? NULL : p_guifont, FALSE);
gui_set_shellsize(TRUE, FALSE, RESIZE_BOTH);
}
}
typedef gboolean timeout_cb_type;
/*
* Start a timer that will invoke the specified callback.
* Returns the ID of the timer.
*/
static guint
timeout_add(int time, timeout_cb_type (*callback)(gpointer), int *flagp)
{
return g_timeout_add((guint)time, (GSourceFunc)callback, flagp);
}
static void
timeout_remove(guint timer)
{
g_source_remove(timer);
}
/////////////////////////////////////////////////////////////////////////////
// Focus handlers:
/*
* This is a simple state machine:
* BLINK_NONE not blinking at all
* BLINK_OFF blinking, cursor is not shown
* BLINK_ON blinking, cursor is shown
*/
#define BLINK_NONE 0
#define BLINK_OFF 1
#define BLINK_ON 2
static int blink_state = BLINK_NONE;
static long_u blink_waittime = 700;
static long_u blink_ontime = 400;
static long_u blink_offtime = 250;
static guint blink_timer = 0;
int
gui_mch_is_blinking(void)
{
return blink_state != BLINK_NONE;
}
int
gui_mch_is_blink_off(void)
{
return blink_state == BLINK_OFF;
}
void
gui_mch_set_blinking(long waittime, long on, long off)
{
blink_waittime = waittime;
blink_ontime = on;
blink_offtime = off;
}
/*
* Stop the cursor blinking. Show the cursor if it wasn't shown.
*/
void
gui_mch_stop_blink(int may_call_gui_update_cursor)
{
if (blink_timer)
{
timeout_remove(blink_timer);
blink_timer = 0;
}
if (blink_state == BLINK_OFF && may_call_gui_update_cursor)
{
gui_update_cursor(TRUE, FALSE);
#if !GTK_CHECK_VERSION(3,0,0)
gui_mch_flush();
#endif
}
blink_state = BLINK_NONE;
}
static timeout_cb_type
blink_cb(gpointer data UNUSED)
{
if (blink_state == BLINK_ON)
{
gui_undraw_cursor();
blink_state = BLINK_OFF;
blink_timer = timeout_add(blink_offtime, blink_cb, NULL);
}
else
{
gui_update_cursor(TRUE, FALSE);
blink_state = BLINK_ON;