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Add support for watching the primary selection

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Depends on GTK+, which should make it work with all of X11, Wayland, and Mir.
master
Přemysl Eric Janouch 9 years ago
parent 627248bd1f
commit a9bc1d8751
3 changed files with 212 additions and 24 deletions
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10
CMakeLists.txt
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@ -10,6 +10,7 @@ endif ("${CMAKE_C_COMPILER_ID}" MATCHES "GNU" OR CMAKE_COMPILER_IS_GNUC)
# Build options
option (USE_SYSTEM_TERMO "Don't compile our own termo, use the system one" OFF)
option (WITH_GTK "Compile with GTK+ support" ON)
# Version
set (project_VERSION_MAJOR "0")
@ -39,6 +40,15 @@ else (USE_SYSTEM_TERMO)
set (Termo_LIBRARIES termo-static)
endif (USE_SYSTEM_TERMO)
if (WITH_GTK)
# We actually don't care about the specific version
pkg_search_module (gtk REQUIRED gtk+-3.0 gtk+-2.0)
list (APPEND dependencies_INCLUDE_DIRS ${gtk_INCLUDE_DIRS})
list (APPEND dependencies_LIBRARY_DIRS ${gtk_LIBRARY_DIRS})
list (APPEND dependencies_LIBRARIES ${gtk_LIBRARIES})
endif (WITH_GTK)
link_directories (${dependencies_LIBRARY_DIRS})
include_directories (${ZLIB_INCLUDE_DIRS}
${dependencies_INCLUDE_DIRS} ${Termo_INCLUDE_DIRS})

1
config.h.in
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@ -8,6 +8,7 @@
#define GETTEXT_PACKAGE PROJECT_NAME
#define GETTEXT_DIRNAME "${CMAKE_INSTALL_PREFIX}/share/locale"
#cmakedefine WITH_GTK
#cmakedefine HAVE_RESIZETERM
#endif /* ! CONFIG_H */

225
src/sdtui.c
Unescape Escape View File

@ -42,6 +42,10 @@
#include "stardict.h"
#include "utils.h"
#ifdef WITH_GTK
#include <gtk/gtk.h>
#endif // WITH_GTK
#define CTRL_KEY(x) ((x) - 'A' + 1)
// --- Utilities ---------------------------------------------------------------
@ -60,6 +64,8 @@ unichar_width (gunichar ch)
typedef struct view_entry ViewEntry;
/** Encloses application data. */
typedef struct application Application;
/** Application options. */
typedef struct app_options AppOptions;
struct view_entry
{
@ -72,7 +78,7 @@ struct application
{
GMainLoop * loop; //!< Main loop
termo_t * tk; //!< termo handle
guint tk_timeout; //!< termo timeout
guint tk_timer; //!< termo timeout timer
GIConv ucs4_to_locale; //!< UTF-32 -> locale conversion
gboolean locale_is_utf8; //!< The locale is Unicode
@ -90,8 +96,17 @@ struct application
gboolean input_confirmed; //!< Input has been confirmed
gfloat division; //!< Position of the division column
guint selection_timer; //!< Selection watcher timeout timer
gint selection_interval; //!< Selection watcher timer interval
gchar * selection_contents; //!< Selection contents
};
struct app_options
{
gboolean show_version; //!< Output version information and quit
gint selection_watcher; //!< Interval in milliseconds, or -1
};
/** Splits the entry and adds it to a pointer array. */
static void
@ -190,13 +205,41 @@ app_reload_view (Application *self)
g_object_unref (iterator);
}
#ifdef WITH_GTK
static gboolean on_selection_timer (gpointer data);
static void
rearm_selection_watcher (Application *self)
{
if (self->selection_interval > 0)
self->selection_timer = g_timeout_add
(self->selection_interval, on_selection_timer, self);
}
#endif // WITH_GTK
/** Initialize the application core. */
static void
app_init (Application *self, const gchar *filename)
app_init (Application *self, AppOptions *options, const gchar *filename)
{
self->loop = g_main_loop_new (NULL, FALSE);
self->loop = NULL;
self->selection_interval = options->selection_watcher;
self->selection_timer = 0;
self->selection_contents = NULL;
#ifdef WITH_GTK
if (gtk_init_check (0, NULL))
{
// So that we set the input only when it actually changes
GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
self->selection_contents = gtk_clipboard_wait_for_text (clipboard);
rearm_selection_watcher (self);
}
else
#endif // WITH_GTK
self->loop = g_main_loop_new (NULL, FALSE);
self->tk = NULL;
self->tk_timeout = 0;
self->tk_timer = 0;
GError *error = NULL;
self->dict = stardict_dict_new (filename, &error);
@ -233,11 +276,16 @@ app_init (Application *self, const gchar *filename)
static void
app_destroy (Application *self)
{
g_main_loop_unref (self->loop);
if (self->loop)
g_main_loop_unref (self->loop);
if (self->tk)
termo_destroy (self->tk);
if (self->tk_timeout)
g_source_remove (self->tk_timeout);
if (self->tk_timer)
g_source_remove (self->tk_timer);
if (self->selection_timer)
g_source_remove (self->selection_timer);
g_free (self->selection_contents);
g_object_unref (self->dict);
g_ptr_array_free (self->entries, TRUE);
@ -247,6 +295,30 @@ app_destroy (Application *self)
g_iconv_close (self->ucs4_to_locale);
}
/** Run the main event dispatch loop. */
static void
app_run (Application *self)
{
if (self->loop)
g_main_loop_run (self->loop);
#ifdef WITH_GTK
else
gtk_main ();
#endif // WITH_GTK
}
/** Quit the main event dispatch loop. */
static void
app_quit (Application *self)
{
if (self->loop)
g_main_loop_quit (self->loop);
#ifdef WITH_GTK
else
gtk_main_quit ();
#endif // WITH_GTK
}
/** Returns if the Unicode character is representable in the current locale. */
static gboolean
app_is_character_in_locale (Application *self, gunichar ch)
@ -1140,17 +1212,17 @@ install_winch_handler (void)
// --- Initialisation, event handling ------------------------------------------
static gboolean process_stdin_input_timeout (gpointer data);
static gboolean on_stdin_input_timeout (gpointer data);
static gboolean
process_stdin_input (G_GNUC_UNUSED GIOChannel *source,
G_GNUC_UNUSED GIOCondition condition, gpointer data)
{
Application *app = data;
if (app->tk_timeout)
if (app->tk_timer)
{
g_source_remove (app->tk_timeout);
app->tk_timeout = 0;
g_source_remove (app->tk_timer);
app->tk_timer = 0;
}
termo_advisereadable (app->tk);
@ -1162,28 +1234,28 @@ process_stdin_input (G_GNUC_UNUSED GIOChannel *source,
goto quit;
if (res == TERMO_RES_AGAIN)
app->tk_timeout = g_timeout_add (termo_get_waittime (app->tk),
process_stdin_input_timeout, app);
app->tk_timer = g_timeout_add (termo_get_waittime (app->tk),
on_stdin_input_timeout, app);
else if (res == TERMO_RES_ERROR || res == TERMO_RES_EOF)
goto quit;
return TRUE;
quit:
g_main_loop_quit (app->loop);
return false;
app_quit (app);
return FALSE;
}
static gboolean
process_stdin_input_timeout (gpointer data)
on_stdin_input_timeout (gpointer data)
{
Application *app = data;
termo_key_t event;
if (termo_getkey_force (app->tk, &event) == TERMO_RES_KEY)
if (!app_process_termo_event (app, &event))
g_main_loop_quit (app->loop);
app_quit (app);
app->tk_timeout = 0;
app->tk_timer = 0;
return FALSE;
}
@ -1201,6 +1273,96 @@ process_winch_input (GIOChannel *source,
return TRUE;
}
#ifdef WITH_GTK
static void
app_set_input (Application *self, const gchar *input)
{
glong size;
gunichar *output = g_utf8_to_ucs4 (input, -1, NULL, &size, NULL);
// XXX: signal invalid data?
if (!output)
return;
g_array_free (self->input, TRUE);
self->input = g_array_new (TRUE, FALSE, sizeof (gunichar));
self->input_pos = 0;
gunichar *p = output;
while (size--)
{
// XXX: skip?
if (!g_unichar_isprint (*p))
break;
g_array_insert_val (self->input, self->input_pos++, *p++);
}
g_free (output);
app_search_for_entry (self);
app_redraw_top (self);
}
static void
on_selection_text_received (G_GNUC_UNUSED GtkClipboard *clipboard,
const gchar *text, gpointer data)
{
Application *app = data;
rearm_selection_watcher (app);
if (text)
{
if (app->selection_contents && !strcmp (app->selection_contents, text))
return;
g_free (app->selection_contents);
app->selection_contents = g_strdup (text);
app_set_input (app, text);
}
else if (app->selection_contents)
{
g_free (app->selection_contents);
app->selection_contents = NULL;
}
}
static gboolean
on_selection_timer (gpointer data)
{
Application *app = data;
GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
gtk_clipboard_request_text (clipboard, on_selection_text_received, app);
app->selection_timer = 0;
return FALSE;
}
static gboolean
on_watch_primary_selection (G_GNUC_UNUSED const gchar *option_name,
const gchar *value, gpointer data, GError **error)
{
AppOptions *options = data;
if (!value)
{
options->selection_watcher = 500;
return TRUE;
}
char *end;
errno = 0;
long timer = strtol (value, &end, 10);
if (errno || *end || end == value || timer <= 0 || timer > G_MAXINT)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
_("Invalid timer value"));
return FALSE;
}
options->selection_watcher = timer;
return TRUE;
}
#endif // WITH_GTK
int
main (int argc, char *argv[])
{
@ -1209,12 +1371,24 @@ G_GNUC_BEGIN_IGNORE_DEPRECATIONS
g_type_init ();
G_GNUC_END_IGNORE_DEPRECATIONS
gboolean show_version = FALSE;
AppOptions options =
{
.show_version = FALSE,
.selection_watcher = -1,
};
GOptionEntry entries[] =
{
{ "version", 0, G_OPTION_FLAG_IN_MAIN,
G_OPTION_ARG_NONE, &show_version,
G_OPTION_ARG_NONE, &options.show_version,
N_("Output version information and exit"), NULL },
#ifdef WITH_GTK
{ "watch-primary-selection", 'w',
G_OPTION_FLAG_IN_MAIN | G_OPTION_FLAG_OPTIONAL_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) on_watch_primary_selection,
N_("Watch the value of the primary selection for input"),
N_("TIMER") },
#endif // WITH_GTK
{ NULL }
};
@ -1228,7 +1402,10 @@ G_GNUC_END_IGNORE_DEPRECATIONS
GError *error = NULL;
GOptionContext *ctx = g_option_context_new
(N_("dictionary.ifo - StarDict terminal UI"));
g_option_context_add_main_entries (ctx, entries, GETTEXT_PACKAGE);
GOptionGroup *group = g_option_group_new ("", "", "", &options, NULL);
g_option_group_add_entries (group, entries);
g_option_group_set_translation_domain (group, GETTEXT_PACKAGE);
g_option_context_add_group (ctx, group);
g_option_context_set_translation_domain (ctx, GETTEXT_PACKAGE);
if (!g_option_context_parse (ctx, &argc, &argv, &error))
{
@ -1237,7 +1414,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
exit (EXIT_FAILURE);
}
if (show_version)
if (options.show_version)
{
g_print (PROJECT_NAME " " PROJECT_VERSION "\n");
exit (EXIT_SUCCESS);
@ -1254,7 +1431,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
g_option_context_free (ctx);
Application app;
app_init (&app, argv[1]);
app_init (&app, &options, argv[1]);
TERMO_CHECK_VERSION;
if (!(app.tk = termo_new (STDIN_FILENO, NULL, 0)))
@ -1275,7 +1452,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
G_IO_IN, process_stdin_input, &app);
g_io_add_watch (g_io_channel_unix_new (g_winch_pipe[0]),
G_IO_IN, process_winch_input, &app);
g_main_loop_run (app.loop);
app_run (&app);
endwin ();
app_destroy (&app);

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