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rofi/source/dialogs/dmenu.c
Dave Davenport afc056ecc5 Play with dmenu black screen
2016-01-27 23:28:14 +01:00

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/**
* rofi
*
* MIT/X11 License
* Copyright 2013-2016 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 <errno.h>
#include "rofi.h"
#include "settings.h"
#include "textbox.h"
#include "dialogs/dmenu.h"
#include "helper.h"
#include "xrmoptions.h"
// We limit at 1000000 rows for now.
#define DMENU_MAX_ROWS 1000000
// TODO HACK TO BE REMOVED
extern Display *display;
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;
struct range_pair * selected_list;
unsigned int num_selected_list;
// List with entries.
char **cmd_list;
unsigned int cmd_list_length;
} DmenuModePrivateData;
static char **get_dmenu ( FILE *fd, unsigned int *length )
{
TICK_N ( "Read stdin START" );
char **retv = NULL;
unsigned int rvlength = 1;
*length = 0;
gchar *data = NULL;
size_t data_l = 0;
ssize_t l = 0;
while ( ( l = getdelim ( &data, &data_l, config.separator, fd ) ) > 0 ) {
if ( rvlength < ( *length + 2 ) ) {
rvlength *= 2;
retv = g_realloc ( retv, ( rvlength ) * sizeof ( char* ) );
}
if ( data[l - 1] == config.separator ) {
data[l - 1] = '\0';
}
retv[( *length )] = data;
data = NULL;
data_l = 0;
( *length )++;
// Stop when we hit 2³¹ entries.
if ( ( *length ) >= DMENU_MAX_ROWS ) {
break;
}
}
if ( data != NULL ) {
free ( data );
data = NULL;
}
if ( retv != NULL ) {
retv = g_realloc ( retv, ( *length + 1 ) * sizeof ( char* ) );
retv[( *length ) ] = NULL;
}
TICK_N ( "Read stdin STOP" );
return retv;
}
static unsigned int dmenu_mode_get_num_entries ( const Mode *sw )
{
const DmenuModePrivateData *rmpd = (const DmenuModePrivateData *) mode_get_private_data ( sw );
return rmpd->cmd_list_length;
}
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 char *get_display_data ( const Mode *data, unsigned int index, int *state, int get_entry )
{
Mode *sw = (Mode *) data;
DmenuModePrivateData *pd = (DmenuModePrivateData *) mode_get_private_data ( sw );
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;
}
}
for ( unsigned int i = 0; i < pd->num_selected_list; i++ ) {
if ( index >= pd->selected_list[i].start && index <= pd->selected_list[i].stop ) {
*state |= SELECTED;
}
}
return get_entry ? g_strdup ( retv[index] ) : NULL;
}
/**
* @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 ( Mode *sw )
{
if ( mode_get_private_data ( sw ) == NULL ) {
return;
}
DmenuModePrivateData *pd = (DmenuModePrivateData *) mode_get_private_data ( sw );
if ( pd != NULL ) {
for ( size_t i = 0; i < pd->cmd_list_length; i++ ) {
if ( pd->cmd_list[i] ) {
free ( pd->cmd_list[i] );
}
}
g_free ( pd->cmd_list );
g_free ( pd->urgent_list );
g_free ( pd->active_list );
g_free ( pd->selected_list );
g_free ( pd );
mode_set_private_data ( sw, NULL );
}
}
static int dmenu_mode_init ( Mode *sw )
{
if ( mode_get_private_data ( sw ) != NULL ) {
return TRUE;
}
mode_set_private_data ( sw, g_malloc0 ( sizeof ( DmenuModePrivateData ) ) );
DmenuModePrivateData *pd = (DmenuModePrivateData *) mode_get_private_data ( sw );
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;
}
FILE *fd = NULL;
str = NULL;
if ( find_arg_str ( "-input", &str ) ) {
char *estr = rofi_expand_path ( str );
fd = fopen ( str, "r" );
if ( fd == NULL ) {
char *msg = g_markup_printf_escaped ( "Failed to open file: <b>%s</b>:\n\t<i>%s</i>", estr, strerror ( errno ) );
error_dialog ( msg, TRUE );
g_free ( msg );
g_free ( estr );
return TRUE;
}
g_free ( estr );
}
pd->cmd_list = get_dmenu ( fd == NULL ? stdin : fd, &( pd->cmd_list_length ) );
if ( fd != NULL ) {
fclose ( fd );
}
return TRUE;
}
static int dmenu_token_match ( const Mode *sw, char **tokens, int not_ascii, int case_sensitive, unsigned int index )
{
DmenuModePrivateData *rmpd = (DmenuModePrivateData *) mode_get_private_data ( sw );
return token_match ( tokens, rmpd->cmd_list[index], not_ascii, case_sensitive );
}
static int dmenu_is_not_ascii ( const Mode *sw, unsigned int index )
{
DmenuModePrivateData *rmpd = (DmenuModePrivateData *) mode_get_private_data ( sw );
return !g_str_is_ascii ( rmpd->cmd_list[index] );
}
#include "mode-private.h"
Mode dmenu_mode =
{
.name = "dmenu",
.cfg_name_key = "display-combi",
.keycfg = NULL,
.keystr = NULL,
.modmask = AnyModifier,
._init = dmenu_mode_init,
._get_num_entries = dmenu_mode_get_num_entries,
._result = NULL,
._destroy = dmenu_mode_free,
._token_match = dmenu_token_match,
._get_display_value = get_display_data,
._get_completion = NULL,
._is_not_ascii = dmenu_is_not_ascii,
.private_data = NULL,
.free = NULL
};
int dmenu_switcher_dialog ( void )
{
mode_init ( &dmenu_mode );
MenuFlags menu_flags = MENU_NORMAL;
DmenuModePrivateData *pd = (DmenuModePrivateData *) dmenu_mode.private_data;
char *input = NULL;
int retv = FALSE;
int restart = FALSE;
unsigned int cmd_list_length = pd->cmd_list_length;
char **cmd_list = pd->cmd_list;
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;
}
}
if ( find_arg ( "-password" ) >= 0 ) {
menu_flags |= MENU_PASSWORD;
}
/* 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], !g_str_is_ascii ( cmd_list[i] ), config.case_sensitive ) ) {
pd->selected_line = i;
break;
}
}
g_strfreev ( tokens );
}
if ( find_arg ( "-dump" ) >= 0 ) {
char **tokens = tokenize ( config.filter ? config.filter : "", config.case_sensitive );
unsigned int i = 0;
for ( i = 0; i < cmd_list_length; i++ ) {
if ( token_match ( tokens, cmd_list[i], !g_str_is_ascii ( cmd_list[i] ), config.case_sensitive ) ) {
dmenu_output_formatted_line ( pd->format, cmd_list[i], i, config.filter );
}
}
g_strfreev ( tokens );
return TRUE;
}
MenuState *state = menu ( &dmenu_mode, input, pd->prompt, pd->message, menu_flags );
while ( XPending (display) ){
XEvent ev;
XNextEvent ( display, &ev );
menu_state_itterrate ( state, &ev );
}
do {
menu_state_restart ( state );
menu_state_set_selected_line ( state, pd->selected_line );
retv = FALSE;
menu_state_set_active ( state );
// Enter main loop.
while ( !menu_state_get_completed ( state ) ) {
g_main_context_iteration ( NULL, TRUE );
}
menu_state_set_active ( NULL );
g_free ( input );
input = g_strdup ( menu_state_get_user_input ( state ) );
pd->selected_line = menu_state_get_selected_line ( state );;
MenuReturn mretv = menu_state_get_return_value ( state );
unsigned int next_pos = menu_state_get_next_position ( state );
// 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;
int seen = FALSE;
if ( pd->selected_list != NULL ) {
if ( pd->selected_list[pd->num_selected_list - 1].stop == ( pd->selected_line - 1 ) ) {
pd->selected_list[pd->num_selected_list - 1].stop = pd->selected_line;
seen = TRUE;
}
}
if ( !seen ) {
pd->selected_list = g_realloc ( pd->selected_list,
( pd->num_selected_list + 1 ) * sizeof ( struct range_pair ) );
pd->selected_list[pd->num_selected_list].start = pd->selected_line;
pd->selected_list[pd->num_selected_list].stop = pd->selected_line;
( pd->num_selected_list )++;
}
// 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 );
menu_state_free ( state );
g_free ( input );
mode_destroy ( &dmenu_mode );
return retv;
}
void print_dmenu_options ( void )
{
int is_term = isatty ( fileno ( stdout ) );
print_help_msg ( "-mesg", "[string]", "Print a small user message under the prompt (uses pango markup)", NULL, is_term );
print_help_msg ( "-p", "[string]", "Prompt to display left of entry field", NULL, is_term );
print_help_msg ( "-selected-row", "[integer]", "Select row", NULL, is_term );
print_help_msg ( "-format", "[string]", "Output format string", "s", is_term );
print_help_msg ( "-u", "[list]", "List of row indexes to mark urgent", NULL, is_term );
print_help_msg ( "-a", "[list]", "List of row indexes to mark active", NULL, is_term );
print_help_msg ( "-l", "[integer] ", "Number of rows to display", NULL, is_term );
print_help_msg ( "-i", "", "Set filter to be case insensitive", NULL, is_term );
print_help_msg ( "-only-match", "", "Force selection or custom entry", NULL, is_term );
print_help_msg ( "-no-custom", "", "Don't accept custom entry", NULL, is_term );
print_help_msg ( "-select", "[string]", "Select the first row that matches", NULL, is_term );
print_help_msg ( "-password", "", "Do not show what the user inputs. Show '*' instead.", NULL, is_term );
}
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