rofi/source/dialogs/drun.c

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/*
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* rofi
*
* MIT/X11 License
* Copyright © 2013-2017 Qball Cow <qball@gmpclient.org>
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*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
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#define G_LOG_DOMAIN "Dialogs.DRun"
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#include <config.h>
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#ifdef ENABLE_DRUN
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#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
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#include <dirent.h>
#include <strings.h>
#include <string.h>
#include <errno.h>
#include "rofi.h"
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#include "settings.h"
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#include "helper.h"
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#include "timings.h"
#include "widgets/textbox.h"
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#include "history.h"
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#include "dialogs/drun.h"
#include "nkutils-xdg-theme.h"
#include "xcb.h"
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#define DRUN_CACHE_FILE "rofi2.druncache"
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#define GET_CAT_PARSE_TIME
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/**
* Store extra information about the entry.
* Currently the executable and if it should run in terminal.
*/
typedef struct
{
/* Root */
char *root;
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/* Path to desktop file */
char *path;
/* Application id (.desktop filename) */
char *app_id;
/* Icon stuff */
char *icon_name;
cairo_surface_t *icon;
/* Executable */
char *exec;
/* Name of the Entry */
char *name;
/* Generic Name */
char *generic_name;
#ifdef GET_CAT_PARSE_TIME
char **categories;
#endif
GKeyFile *key_file;
} DRunModeEntry;
typedef struct
{
NkXdgThemeContext *xdg_context;
DRunModeEntry *entry_list;
unsigned int cmd_list_length;
unsigned int cmd_list_length_actual;
unsigned int history_length;
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// List of disabled entries.
GHashTable *disabled_entries;
unsigned int disabled_entries_length;
GThread *thread;
} DRunModePrivateData;
struct RegexEvalArg
{
DRunModeEntry *e;
gboolean success;
};
static gboolean drun_helper_eval_cb ( const GMatchInfo *info, GString *res, gpointer data )
{
// TODO quoting is not right? Find description not very clear, need to check.
struct RegexEvalArg *e = (struct RegexEvalArg *) data;
gchar *match;
// Get the match
match = g_match_info_fetch ( info, 0 );
if ( match != NULL ) {
switch ( match[1] )
{
// Unsupported
case 'f':
case 'F':
case 'u':
case 'U':
case 'i':
// Deprecated
case 'd':
case 'D':
case 'n':
case 'N':
case 'v':
case 'm':
break;
case 'k':
if ( e->e->path ) {
char *esc = g_shell_quote ( e->e->path );
g_string_append ( res, esc );
g_free ( esc );
}
break;
case 'c':
if ( e->e->name ) {
char *esc = g_shell_quote ( e->e->name );
g_string_append ( res, esc );
g_free ( esc );
}
break;
// Invalid, this entry should not be processed -> throw error.
default:
e->success = FALSE;
g_free ( match );
return TRUE;
}
g_free ( match );
}
// Continue replacement.
return FALSE;
}
static void exec_cmd_entry ( DRunModeEntry *e )
{
GError *error = NULL;
GRegex *reg = g_regex_new ( "%[a-zA-Z]", 0, 0, &error );
if ( error != NULL ) {
g_warning ( "Internal error, failed to create regex: %s.", error->message );
g_error_free ( error );
return;
}
struct RegexEvalArg earg = { .e = e, .success = TRUE };
char *str = g_regex_replace_eval ( reg, e->exec, -1, 0, 0, drun_helper_eval_cb, &earg, &error );
if ( error != NULL ) {
g_warning ( "Internal error, failed replace field codes: %s.", error->message );
g_error_free ( error );
return;
}
g_regex_unref ( reg );
if ( earg.success == FALSE ) {
g_warning ( "Invalid field code in Exec line: %s.", e->exec );;
return;
}
if ( str == NULL ) {
g_warning ( "Nothing to execute after processing: %s.", e->exec );;
return;
}
gchar *fp = rofi_expand_path ( g_strstrip ( str ) );
gchar *exec_path = g_key_file_get_string ( e->key_file, "Desktop Entry", "Path", NULL );
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if ( exec_path != NULL && strlen ( exec_path ) == 0 ) {
// If it is empty, ignore this property. (#529)
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g_free ( exec_path );
exec_path = NULL;
}
// Returns false if not found, if key not found, we don't want run in terminal.
gboolean terminal = g_key_file_get_boolean ( e->key_file, "Desktop Entry", "Terminal", NULL );
if ( helper_execute_command ( exec_path, fp, terminal, NULL ) ) {
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char *path = g_build_filename ( cache_dir, DRUN_CACHE_FILE, NULL );
char *key = g_strdup_printf ( "%s:::%s", e->root, e->path );
history_set ( path, key );
g_free ( key );
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g_free ( path );
}
g_free ( exec_path );
g_free ( str );
g_free ( fp );
}
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/**
* This function absorbs/freeś path, so this is no longer available afterwards.
*/
static gboolean read_desktop_file ( DRunModePrivateData *pd, const char *root, const char *path, const gchar *basename )
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{
// Create ID on stack.
// We know strlen (path ) > strlen(root)+1
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const ssize_t id_len = strlen ( path ) - strlen ( root );
char id[id_len];
g_strlcpy ( id, &( path[strlen ( root ) + 1] ), id_len );
for ( int index = 0; index < id_len; index++ ) {
if ( id[index] == '/' ) {
id[index] = '-';
}
}
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// Check if item is on disabled list.
if ( g_hash_table_contains ( pd->disabled_entries, id ) ) {
g_debug ( "Skipping: %s, was previously seen.", id );
return TRUE;
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}
GKeyFile *kf = g_key_file_new ();
GError *error = NULL;
g_key_file_load_from_file ( kf, path, 0, &error );
// If error, skip to next entry
if ( error != NULL ) {
g_debug ( "Failed to parse desktop file: %s because: %s", path, error->message );
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g_error_free ( error );
g_key_file_free ( kf );
return FALSE;
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}
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// Skip non Application entries.
gchar *key = g_key_file_get_string ( kf, "Desktop Entry", "Type", NULL );
if ( key == NULL ) {
// No type? ignore.
g_debug ( "Skipping desktop file: %s because: No type indicated", path );
g_key_file_free ( kf );
return FALSE;
}
if ( g_strcmp0 ( key, "Application" ) ) {
g_debug ( "Skipping desktop file: %s because: Not of type application (%s)", path, key );
g_free ( key );
g_key_file_free ( kf );
return FALSE;
}
g_free ( key );
// Name key is required.
if ( !g_key_file_has_key ( kf, "Desktop Entry", "Name", NULL ) ) {
g_debug ( "Invalid DesktopFile: '%s', no 'Name' key present.", path );
g_key_file_free ( kf );
return FALSE;
}
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// Skip hidden entries.
if ( g_key_file_get_boolean ( kf, "Desktop Entry", "Hidden", NULL ) ) {
g_debug ( "Adding desktop file: %s to disabled list because: Hdden", path );
g_key_file_free ( kf );
g_hash_table_add ( pd->disabled_entries, g_strdup ( id ) );
return FALSE;
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}
// Skip entries that have NoDisplay set.
if ( g_key_file_get_boolean ( kf, "Desktop Entry", "NoDisplay", NULL ) ) {
g_debug ( "Adding desktop file: %s to disabled list because: NoDisplay", path );
g_key_file_free ( kf );
g_hash_table_add ( pd->disabled_entries, g_strdup ( id ) );
return FALSE;
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}
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// We need Exec, don't support DBusActivatable
if ( !g_key_file_has_key ( kf, "Desktop Entry", "Exec", NULL ) ) {
g_debug ( "Unsupported DesktopFile: '%s', no 'Exec' key present.", path );
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g_key_file_free ( kf );
return FALSE;
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}
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size_t nl = ( ( pd->cmd_list_length ) + 1 );
if ( nl >= pd->cmd_list_length_actual ) {
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pd->cmd_list_length_actual += 256;
pd->entry_list = g_realloc ( pd->entry_list, pd->cmd_list_length_actual * sizeof ( *( pd->entry_list ) ) );
}
pd->entry_list[pd->cmd_list_length].root = g_strdup ( root );
pd->entry_list[pd->cmd_list_length].path = g_strdup ( path );
pd->entry_list[pd->cmd_list_length].app_id = g_strndup ( basename, strlen ( basename ) - strlen ( ".desktop" ) );
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gchar *n = g_key_file_get_locale_string ( kf, "Desktop Entry", "Name", NULL, NULL );
pd->entry_list[pd->cmd_list_length].name = n;
gchar *gn = g_key_file_get_locale_string ( kf, "Desktop Entry", "GenericName", NULL, NULL );
pd->entry_list[pd->cmd_list_length].generic_name = gn;
#ifdef GET_CAT_PARSE_TIME
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pd->entry_list[pd->cmd_list_length].categories = g_key_file_get_locale_string_list ( kf, "Desktop Entry", "Categories", NULL, NULL, NULL );
#endif
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pd->entry_list[pd->cmd_list_length].exec = g_key_file_get_string ( kf, "Desktop Entry", "Exec", NULL );
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if ( config.show_icons ) {
pd->entry_list[pd->cmd_list_length].icon_name = g_key_file_get_locale_string ( kf, "Desktop Entry", "Icon", NULL, NULL );
}
else{
pd->entry_list[pd->cmd_list_length].icon_name = NULL;
}
pd->entry_list[pd->cmd_list_length].icon = NULL;
// Keep keyfile around.
pd->entry_list[pd->cmd_list_length].key_file = kf;
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// We don't want to parse items with this id anymore.
g_hash_table_add ( pd->disabled_entries, g_strdup ( id ) );
( pd->cmd_list_length )++;
return TRUE;
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}
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/**
* Internal spider used to get list of executables.
*/
static void walk_dir ( DRunModePrivateData *pd, const char *root, const char *dirname )
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{
DIR *dir;
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g_debug ( "Checking directory %s for desktop files.", root );
dir = opendir ( dirname );
if ( dir == NULL ) {
return;
}
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struct dirent *file;
gchar *filename = NULL;
struct stat st;
while ( ( file = readdir ( dir ) ) != NULL ) {
if ( file->d_name[0] == '.' ) {
continue;
}
switch ( file->d_type )
{
case DT_LNK:
case DT_REG:
case DT_DIR:
case DT_UNKNOWN:
filename = g_build_filename ( dirname, file->d_name, NULL );
break;
default:
continue;
}
// On a link, or if FS does not support providing this information
// Fallback to stat method.
if ( file->d_type == DT_LNK || file->d_type == DT_UNKNOWN ) {
file->d_type = DT_UNKNOWN;
if ( stat ( filename, &st ) == 0 ) {
if ( S_ISDIR ( st.st_mode ) ) {
file->d_type = DT_DIR;
}
else if ( S_ISREG ( st.st_mode ) ) {
file->d_type = DT_REG;
}
}
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}
switch ( file->d_type )
{
case DT_REG:
// Skip files not ending on .desktop.
if ( g_str_has_suffix ( file->d_name, ".desktop" ) ) {
read_desktop_file ( pd, root, filename, file->d_name );
}
break;
case DT_DIR:
walk_dir ( pd, root, filename );
break;
default:
break;
}
g_free ( filename );
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}
closedir ( dir );
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}
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/**
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* @param entry The command entry to remove from history
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*
* Remove command from history.
*/
static void delete_entry_history ( const DRunModeEntry *entry )
{
char *path = g_build_filename ( cache_dir, DRUN_CACHE_FILE, NULL );
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char *key = g_strdup_printf ( "%s:::%s", entry->root, entry->path );
history_remove ( path, key );
g_free ( key );
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g_free ( path );
}
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static void get_apps_history ( DRunModePrivateData *pd )
{
unsigned int length = 0;
gchar *path = g_build_filename ( cache_dir, DRUN_CACHE_FILE, NULL );
gchar **retv = history_get_list ( path, &length );
for ( unsigned int index = 0; index < length; index++ ) {
char **st = g_strsplit ( retv[index], ":::", 2 );
if ( st && st[0] && st[1] ) {
const gchar *basename = g_utf8_strrchr ( st[1], -1, G_DIR_SEPARATOR );
if ( basename == NULL || !read_desktop_file ( pd, st[0], st[1], ++basename ) ) {
history_remove ( path, retv[index] );
}
}
g_strfreev ( st );
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}
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g_strfreev ( retv );
g_free ( path );
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pd->history_length = pd->cmd_list_length;
}
static void get_apps ( DRunModePrivateData *pd )
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{
TICK_N ( "Get Desktop apps (start)" );
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get_apps_history ( pd );
gchar *dir;
// First read the user directory.
dir = g_build_filename ( g_get_user_data_dir (), "applications", NULL );
walk_dir ( pd, dir, dir );
g_free ( dir );
TICK_N ( "Get Desktop apps (user dir)" );
// Then read thee system data dirs.
const gchar * const * sys = g_get_system_data_dirs ();
for (; *sys != NULL; ++sys ) {
dir = g_build_filename ( *sys, "applications", NULL );
walk_dir ( pd, dir, dir );
g_free ( dir );
}
TICK_N ( "Get Desktop apps (system dirs)" );
}
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static gpointer drun_icon_fetch ( gpointer data )
{
// as long as dr->icon is updated atomicly.. (is a pointer write atomic?)
// this should be fine running in another thread.
GTimer *t = g_timer_new ();
DRunModePrivateData *pd = (DRunModePrivateData *) data;
for ( size_t i = 0; i < pd->cmd_list_length; i++ ) {
DRunModeEntry *dr = &( pd->entry_list[i] );
if ( dr->icon_name == NULL ) {
continue;
}
gchar *icon_path = nk_xdg_theme_get_icon ( pd->xdg_context, NULL, "Applications", dr->icon_name, 32, 1, TRUE );
if ( icon_path == NULL ) {
g_free ( dr->icon_name );
dr->icon_name = NULL;
continue;
}
else{
g_log ( G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "Found Icon %s(%d): %s", dr->icon_name, 32, icon_path );
}
if ( g_str_has_suffix ( icon_path, ".png" ) ) {
dr->icon = cairo_image_surface_create_from_png ( icon_path );
}
else if ( g_str_has_suffix ( icon_path, ".svg" ) ) {
dr->icon = cairo_image_surface_create_from_svg ( icon_path, 32 );
}
else {
g_log ( G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "Icon type not yet supported: %s", icon_path );
}
g_free ( icon_path );
// if ( (i%100) == 99 )
{
rofi_view_reload ();
}
}
rofi_view_reload ();
g_log ( G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "elapsed: %f\n", g_timer_elapsed ( t, NULL ) );
g_timer_destroy ( t );
return NULL;
}
static int drun_mode_init ( Mode *sw )
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{
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if ( mode_get_private_data ( sw ) == NULL ) {
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DRunModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
pd->disabled_entries = g_hash_table_new_full ( g_str_hash, g_str_equal, g_free, NULL );
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mode_set_private_data ( sw, (void *) pd );
pd->xdg_context = nk_xdg_theme_context_new ();
get_apps ( pd );
pd->thread = g_thread_new ( "icon-fetch-drun", drun_icon_fetch, pd );
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}
return TRUE;
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}
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static void drun_entry_clear ( DRunModeEntry *e )
{
g_free ( e->root );
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g_free ( e->path );
g_free ( e->app_id );
if ( e->icon != NULL ) {
cairo_surface_destroy ( e->icon );
}
g_free ( e->icon_name );
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g_free ( e->exec );
g_free ( e->name );
g_free ( e->generic_name );
#ifdef GET_CAT_PARSE_TIME
g_strfreev ( e->categories );
#endif
g_key_file_free ( e->key_file );
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}
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static ModeMode drun_mode_result ( Mode *sw, int mretv, char **input, unsigned int selected_line )
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{
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DRunModePrivateData *rmpd = (DRunModePrivateData *) mode_get_private_data ( sw );
ModeMode retv = MODE_EXIT;
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gboolean run_in_term = ( ( mretv & MENU_CUSTOM_ACTION ) == MENU_CUSTOM_ACTION );
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if ( mretv & MENU_NEXT ) {
retv = NEXT_DIALOG;
}
else if ( mretv & MENU_PREVIOUS ) {
retv = PREVIOUS_DIALOG;
}
else if ( mretv & MENU_QUICK_SWITCH ) {
retv = ( mretv & MENU_LOWER_MASK );
}
else if ( ( mretv & MENU_OK ) ) {
exec_cmd_entry ( &( rmpd->entry_list[selected_line] ) );
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}
else if ( ( mretv & MENU_CUSTOM_INPUT ) && *input != NULL && *input[0] != '\0' ) {
helper_execute_command ( NULL, *input, run_in_term, NULL );
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}
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else if ( ( mretv & MENU_ENTRY_DELETE ) && selected_line < rmpd->cmd_list_length ) {
if ( selected_line < rmpd->history_length ) {
if ( rmpd->thread ) {
g_thread_join ( rmpd->thread );
rmpd->thread = NULL;
}
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delete_entry_history ( &( rmpd->entry_list[selected_line] ) );
drun_entry_clear ( &( rmpd->entry_list[selected_line] ) );
memmove ( &( rmpd->entry_list[selected_line] ), &rmpd->entry_list[selected_line + 1],
sizeof ( DRunModeEntry ) * ( rmpd->cmd_list_length - selected_line - 1 ) );
rmpd->cmd_list_length--;
}
retv = RELOAD_DIALOG;
}
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return retv;
}
static void drun_mode_destroy ( Mode *sw )
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{
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DRunModePrivateData *rmpd = (DRunModePrivateData *) mode_get_private_data ( sw );
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if ( rmpd != NULL ) {
if ( rmpd->thread ) {
g_thread_join ( rmpd->thread );
rmpd->thread = NULL;
}
for ( size_t i = 0; i < rmpd->cmd_list_length; i++ ) {
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drun_entry_clear ( &( rmpd->entry_list[i] ) );
}
g_hash_table_destroy ( rmpd->disabled_entries );
g_free ( rmpd->entry_list );
nk_xdg_theme_context_free ( rmpd->xdg_context );
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g_free ( rmpd );
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mode_set_private_data ( sw, NULL );
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}
}
static char *_get_display_value ( const Mode *sw, unsigned int selected_line, int *state, G_GNUC_UNUSED GList **list, int get_entry )
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{
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DRunModePrivateData *pd = (DRunModePrivateData *) mode_get_private_data ( sw );
*state |= MARKUP;
if ( !get_entry ) {
return NULL;
}
if ( pd->entry_list == NULL ) {
// Should never get here.
return g_strdup ( "Failed" );
}
/* Free temp storage. */
DRunModeEntry *dr = &( pd->entry_list[selected_line] );
if ( dr->generic_name == NULL ) {
return g_markup_printf_escaped ( "%s", dr->name );
}
else {
return g_markup_printf_escaped ( "%s <span weight='light' size='small'><i>(%s)</i></span>", dr->name,
dr->generic_name );
}
}
static cairo_surface_t *_get_icon ( const Mode *sw, unsigned int selected_line, int height )
{
DRunModePrivateData *pd = (DRunModePrivateData *) mode_get_private_data ( sw );
g_return_val_if_fail ( pd->entry_list != NULL, NULL );
DRunModeEntry *dr = &( pd->entry_list[selected_line] );
return dr->icon;
}
static char *drun_get_completion ( const Mode *sw, unsigned int index )
{
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DRunModePrivateData *pd = (DRunModePrivateData *) mode_get_private_data ( sw );
/* Free temp storage. */
DRunModeEntry *dr = &( pd->entry_list[index] );
if ( dr->generic_name == NULL ) {
return g_strdup ( dr->name );
}
else {
return g_strdup_printf ( "%s", dr->name );
}
}
static int drun_token_match ( const Mode *data, GRegex **tokens, unsigned int index )
{
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DRunModePrivateData *rmpd = (DRunModePrivateData *) mode_get_private_data ( data );
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int match = 1;
if ( tokens ) {
for ( int j = 0; match && tokens != NULL && tokens[j] != NULL; j++ ) {
int test = 0;
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GRegex *ftokens[2] = { tokens[j], NULL };
// Match name
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if ( rmpd->entry_list[index].name &&
helper_token_match ( ftokens, rmpd->entry_list[index].name ) ) {
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test = 1;
}
// Match generic name
if ( !test && rmpd->entry_list[index].generic_name &&
helper_token_match ( ftokens, rmpd->entry_list[index].generic_name ) ) {
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test = 1;
}
// Match executable name.
if ( !test && helper_token_match ( ftokens, rmpd->entry_list[index].exec ) ) {
test = 1;
}
// Match against category.
if ( !test ) {
#ifdef GET_CAT_PARSE_TIME
gchar **list = rmpd->entry_list[index].categories;
for ( int iter = 0; !test && list && list[iter]; iter++ ) {
test = helper_token_match ( ftokens, list[iter] );
}
#else
gchar **list = g_key_file_get_locale_string_list ( rmpd->entry_list[index].key_file, "Desktop Entry", "Categories", NULL, NULL, NULL );
for ( int iter = 0; !test && list && list[iter]; iter++ ) {
test = helper_token_match ( ftokens, list[iter] );
}
g_strfreev ( list );
#endif
}
if ( test == 0 ) {
match = 0;
}
}
}
return match;
}
static unsigned int drun_mode_get_num_entries ( const Mode *sw )
{
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const DRunModePrivateData *pd = (const DRunModePrivateData *) mode_get_private_data ( sw );
return pd->cmd_list_length;
}
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#include "mode-private.h"
Mode drun_mode =
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{
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.name = "drun",
.cfg_name_key = "display-drun",
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._init = drun_mode_init,
._get_num_entries = drun_mode_get_num_entries,
._result = drun_mode_result,
._destroy = drun_mode_destroy,
._token_match = drun_token_match,
._get_completion = drun_get_completion,
._get_display_value = _get_display_value,
._get_icon = _get_icon,
._preprocess_input = NULL,
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.private_data = NULL,
.free = NULL
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};
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#endif // ENABLE_DRUN