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rofi/source/dialogs/dmenu.c

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/**
* rofi
*
* MIT/X11 License
* Copyright 2013-2015 Qball Cow <qball@gmpclient.org>
*
* 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.
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <strings.h>
#include <string.h>
#include <ctype.h>
#include <stdint.h>
#include "rofi.h"
#include "dialogs/dmenu.h"
#include "helper.h"
struct range_pair
{
unsigned int start;
unsigned int stop;
};
typedef struct _DmenuModePrivateData
{
char *prompt;
unsigned int selected_line;
char *message;
char *format;
struct range_pair * urgent_list;
unsigned int num_urgent_list;
struct range_pair * active_list;
unsigned int num_active_list;
// List with entries.
char **cmd_list;
unsigned int cmd_list_length;
} DmenuModePrivateData;
static char **get_dmenu ( unsigned int *length )
{
char **retv = NULL;
unsigned int rvlength = 1;
*length = 0;
gchar *data = NULL;
size_t data_l = 0;
while ( ( getdelim ( &data, &data_l, config.separator, stdin ) > 0 ) ) {
if ( rvlength < ( *length + 2 ) ) {
rvlength *= 2;
retv = g_realloc ( retv, ( rvlength ) * sizeof ( char* ) );
}
retv[( *length )] = data; //copy;
retv[( *length ) + 1] = NULL;
data = NULL;
data_l = 0;
( *length )++;
// Stop when we hit 2³¹ entries.
if ( ( *length ) == INT_MAX ) {
return retv;
}
}
retv = g_realloc ( retv, ( *length + 1 ) * sizeof ( char* ) );
return retv;
}
static char ** dmenu_mode_get_data ( unsigned int *length, Switcher *sw )
{
DmenuModePrivateData *rmpd = (DmenuModePrivateData *) sw->private_data;
if ( rmpd->cmd_list == NULL ) {
rmpd->cmd_list_length = 0;
rmpd->cmd_list = get_dmenu ( &( rmpd->cmd_list_length ) );
}
*length = rmpd->cmd_list_length;
return rmpd->cmd_list;
}
static void parse_pair ( char *input, struct range_pair *item )
{
int index = 0;
for ( char *token = strsep ( &input, "-" ); token != NULL; token = strsep ( &input, "-" ) ) {
if ( index == 0 ) {
item->start = item->stop = (unsigned int) strtoul ( token, NULL, 10 );
index++;
}
else {
if ( token[0] == '\0' ) {
item->stop = 0xFFFFFFFF;
}
else{
item->stop = (unsigned int) strtoul ( token, NULL, 10 );
}
}
}
}
static void parse_ranges ( char *input, struct range_pair **list, unsigned int *length )
{
char *endp;
if ( input == NULL ) {
return;
}
for ( char *token = strtok_r ( input, ",", &endp ); token != NULL; token = strtok_r ( NULL, ",", &endp ) ) {
// Make space.
*list = g_realloc ( ( *list ), ( ( *length ) + 1 ) * sizeof ( struct range_pair ) );
// Parse a single pair.
parse_pair ( token, &( ( *list )[*length] ) );
( *length )++;
}
}
static const char *get_display_data ( unsigned int index, void *data, G_GNUC_UNUSED int *state )
{
Switcher *sw = (Switcher *) data;
DmenuModePrivateData *pd = (DmenuModePrivateData *) sw->private_data;
char **retv = (char * *) pd->cmd_list;
for ( unsigned int i = 0; i < pd->num_active_list; i++ ) {
if ( index >= pd->active_list[i].start && index <= pd->active_list[i].stop ) {
*state |= ACTIVE;
}
}
for ( unsigned int i = 0; i < pd->num_urgent_list; i++ ) {
if ( index >= pd->urgent_list[i].start && index <= pd->urgent_list[i].stop ) {
*state |= URGENT;
}
}
return retv[index];
}
/**
* @param format The format string used. See below for possible syntax.
* @param string The selected entry.
* @param selected_line The selected line index.
* @param filter The entered filter.
*
* Function that outputs the selected line in the user-specified format.
* Currently the following formats are supported:
* * i: Print the index (0-(N-1))
* * d: Print the index (1-N)
* * s: Print input string.
* * q: Print quoted input string.
* * f: Print the entered filter.
* * F: Print the entered filter, quoted
*
* This functions outputs the formatted string to stdout, appends a newline (\n) character and
* calls flush on the file descriptor.
*/
static void dmenu_output_formatted_line ( const char *format, const char *string, int selected_line,
const char *filter )
{
for ( int i = 0; format && format[i]; i++ ) {
if ( format[i] == 'i' ) {
fprintf ( stdout, "%d", selected_line );
}
else if ( format[i] == 'd' ) {
fprintf ( stdout, "%d", ( selected_line + 1 ) );
}
else if ( format[i] == 's' ) {
fputs ( string, stdout );
}
else if ( format[i] == 'q' ) {
char *quote = g_shell_quote ( string );
fputs ( quote, stdout );
g_free ( quote );
}
else if ( format[i] == 'f' ) {
fputs ( filter, stdout );
}
else if ( format[i] == 'F' ) {
char *quote = g_shell_quote ( filter );
fputs ( quote, stdout );
g_free ( quote );
}
else {
fputc ( format[i], stdout );
}
}
fputc ( '\n', stdout );
fflush ( stdout );
}
static void dmenu_mode_free ( Switcher *sw )
{
if ( sw->private_data == NULL ) {
return;
}
DmenuModePrivateData *pd = (DmenuModePrivateData *) sw->private_data;
g_strfreev ( pd->cmd_list );
g_free ( pd->urgent_list );
g_free ( pd->active_list );
g_free ( pd );
sw->private_data = NULL;
}
static void dmenu_mode_init ( Switcher *sw )
{
if ( sw->private_data != NULL ) {
return;
}
sw->private_data = g_malloc0 ( sizeof ( DmenuModePrivateData ) );
DmenuModePrivateData *pd = (DmenuModePrivateData *) sw->private_data;
pd->prompt = "dmenu ";
pd->selected_line = UINT32_MAX;
find_arg_str ( "-mesg", &( pd->message ) );
// Check prompt
find_arg_str ( "-p", &( pd->prompt ) );
find_arg_uint ( "-selected-row", &( pd->selected_line ) );
// By default we print the unescaped line back.
pd->format = "s";
// Allow user to override the output format.
find_arg_str ( "-format", &( pd->format ) );
// Urgent.
char *str = NULL;
find_arg_str ( "-u", &str );
if ( str != NULL ) {
parse_ranges ( str, &( pd->urgent_list ), &( pd->num_urgent_list ) );
}
// Active
str = NULL;
find_arg_str ( "-a", &str );
if ( str != NULL ) {
parse_ranges ( str, &( pd->active_list ), &( pd->num_active_list ) );
}
// DMENU COMPATIBILITY
find_arg_uint ( "-l", &( config.menu_lines ) );
/**
* Dmenu compatibility.
* `-b` put on bottom.
*/
if ( find_arg ( "-b" ) >= 0 ) {
config.location = 6;
}
/* -i case insensitive */
config.case_sensitive = TRUE;
if ( find_arg ( "-i" ) >= 0 ) {
config.case_sensitive = FALSE;
}
}
Switcher dmenu_mode =
{
.name = "dmenu",
.keycfg = NULL,
.keystr = NULL,
.modmask = AnyModifier,
.init = dmenu_mode_init,
.get_data = dmenu_mode_get_data,
.result = NULL,
.destroy = dmenu_mode_free,
.token_match = token_match,
.mgrv = get_display_data,
.private_data = NULL,
.free = NULL
};
int dmenu_switcher_dialog ( void )
{
dmenu_mode.init ( &dmenu_mode );
DmenuModePrivateData *pd = (DmenuModePrivateData *) dmenu_mode.private_data;
char *input = NULL;
int retv = FALSE;
int restart = FALSE;
unsigned int cmd_list_length = 0;
char **cmd_list = dmenu_mode.get_data ( &( cmd_list_length ), &dmenu_mode );
int only_selected = FALSE;
if ( find_arg ( "-only-match" ) >= 0 || find_arg ( "-no-custom" ) >= 0 ) {
only_selected = TRUE;
if ( cmd_list_length == 0 ) {
return TRUE;
}
}
/* copy filter string */
input = g_strdup ( config.filter );
char *select = NULL;
find_arg_str ( "-select", &select );
if ( select != NULL ) {
char **tokens = tokenize ( select, config.case_sensitive );
unsigned int i = 0;
for ( i = 0; i < cmd_list_length; i++ ) {
if ( token_match ( tokens, cmd_list[i], is_not_ascii ( cmd_list[i] ), config.case_sensitive, 0, NULL ) ) {
pd->selected_line = i;
break;
}
}
g_strfreev ( tokens );
}
do {
unsigned int next_pos = pd->selected_line;
int mretv = menu ( &dmenu_mode, &input, pd->prompt, &( pd->selected_line ), &next_pos, pd->message );
// Special behavior.
// TODO clean this up!
if ( only_selected ) {
/**
* Select item mode.
*/
restart = 1;
if ( ( mretv & ( MENU_OK | MENU_QUICK_SWITCH ) ) && cmd_list[pd->selected_line] != NULL ) {
dmenu_output_formatted_line ( pd->format, cmd_list[pd->selected_line], pd->selected_line, input );
retv = TRUE;
if ( ( mretv & MENU_QUICK_SWITCH ) ) {
retv = 10 + ( mretv & MENU_LOWER_MASK );
}
return retv;
}
else if ( ( mretv & MENU_CANCEL ) == MENU_CANCEL ) {
// In no custom mode we allow canceling.
restart = ( find_arg ( "-only-match" ) >= 0 );
}
pd->selected_line = next_pos - 1;
continue;
}
// We normally do not want to restart the loop.
restart = FALSE;
// Normal mode
if ( ( mretv & MENU_OK ) && cmd_list[pd->selected_line] != NULL ) {
dmenu_output_formatted_line ( pd->format, cmd_list[pd->selected_line], pd->selected_line, input );
if ( ( mretv & MENU_SHIFT ) ) {
restart = TRUE;
// Move to next line.
pd->selected_line = MIN ( next_pos, cmd_list_length - 1 );
}
retv = TRUE;
}
// Custom input
else if ( ( mretv & ( MENU_CUSTOM_INPUT ) ) ) {
dmenu_output_formatted_line ( pd->format, input, -1, input );
if ( ( mretv & MENU_SHIFT ) ) {
restart = TRUE;
// Move to next line.
pd->selected_line = MIN ( next_pos, cmd_list_length - 1 );
}
retv = TRUE;
}
// Quick switch with entry selected.
else if ( ( mretv & MENU_QUICK_SWITCH ) && pd->selected_line < UINT32_MAX ) {
dmenu_output_formatted_line ( pd->format, cmd_list[pd->selected_line], pd->selected_line, input );
restart = FALSE;
retv = 10 + ( mretv & MENU_LOWER_MASK );
}
// Quick switch without entry selected.
else if ( ( mretv & MENU_QUICK_SWITCH ) && pd->selected_line == UINT32_MAX ) {
dmenu_output_formatted_line ( pd->format, input, -1, input );
restart = FALSE;
retv = 10 + ( mretv & MENU_LOWER_MASK );
}
} while ( restart );
g_free ( input );
dmenu_mode.destroy ( &dmenu_mode );
return retv;
}
void print_dmenu_options ( void )
{
if ( isatty ( fileno ( stdout ) ) ) {
printf (
"\t"color_bold "-mesg"color_reset
" [string] Print a small user message under the prompt (uses pango markup)\n" );
printf ( "\t"color_bold "-p"color_reset " [string] Prompt to display left of entry field\n" );
printf ( "\t"color_bold "-selected-row"color_reset " [integer] Select row\n" );
printf ( "\t"color_bold "-format"color_reset " [string] Output format string\n" );
printf ( "\t\t"color_italic "s"color_reset "\n" );
printf ( "\t"color_bold "-u"color_reset " [list] List of row indexes to mark urgent\n" );
printf ( "\t"color_bold "-a"color_reset " [list] List of row indexes to mark active\n" );
printf ( "\t"color_bold "-l"color_reset " [integer] Number of rows to display\n" );
printf ( "\t"color_bold "-i"color_reset " Set filter to be case insensitive\n" );
printf ( "\t"color_bold "-only-match"color_reset " Force selection or custom entry\n" );
printf ( "\t"color_bold "-no-custom"color_reset " Don't accept custom entry\n" );
printf ( "\t"color_bold "-select"color_reset " [string] Select the first row that matches\n" );
}
else {
printf ( "\t-mesg [string] Print a small user message under the prompt (uses pango markup)\n" );
printf ( "\t-p [string] Prompt to display left of entry field\n" );
printf ( "\t-selected-row [integer] Select row\n" );
printf ( "\t-format [string] Output format string\n" );
printf ( "\t\ts\n" );
printf ( "\t-u [list] List of row indexes to mark urgent\n" );
printf ( "\t-a [list] List of row indexes to mark active\n" );
printf ( "\t-l [integer] Number of rows to display\n" );
printf ( "\t-i Set filter to be case insensitive\n" );
printf ( "\t-only-match Force selection or custom entry\n" );
printf ( "\t-no-custom Don't accept custom entry\n" );
printf ( "\t-select [string] Select the first row that matches\n" );
}
}
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