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rofi/source/rofi.c
Dave Davenport 0d87cf12a3 Add combi viewer, where (selected) modi can be combined. 
- Add active window highlighter.
2015-03-31 22:45:02 +02:00

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/**
* rofi
*
* MIT/X11 License
* Copyright (c) 2012 Sean Pringle <sean.pringle@gmail.com>
* Modified 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 <string.h>
#include <unistd.h>
#include <stdint.h>
#include <signal.h>
#include <errno.h>
#include <time.h>
#include <X11/X.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xproto.h>
#include <X11/keysym.h>
#include <X11/XKBlib.h>
#include <sys/wait.h>
#include <sys/types.h>
#include "rofi.h"
#include "helper.h"
#include "textbox.h"
#include "x11-helper.h"
#include "xrmoptions.h"
// Switchers.
#include "dialogs/run.h"
#include "dialogs/ssh.h"
#include "dialogs/dmenu.h"
#include "dialogs/script.h"
#include "dialogs/window.h"
#include "dialogs/combi.h"
#define LINE_MARGIN 3
// TEMP
SwitcherMode switcher_run ( char **input, Switcher *sw );
typedef enum _MainLoopEvent
{
ML_XEVENT,
ML_TIMEOUT
} MainLoopEvent;
// Pidfile.
char *pidfile = NULL;
const char *cache_dir = NULL;
Display *display = NULL;
char *display_str = NULL;
const char *netatom_names[] = { EWMH_ATOMS ( ATOM_CHAR ) };
Atom netatoms[NUM_NETATOMS];
// Array of switchers.
Switcher **switchers = NULL;
// Number of switchers.
unsigned int num_switchers = 0;
// Current selected switcher.
unsigned int curr_switcher = 0;
/**
* @param name Name of the switcher to lookup.
*
* Find the index of the switcher with name.
*
* @returns index of the switcher in switchers, -1 if not found.
*/
static int switcher_get ( const char *name )
{
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( strcmp ( switchers[i]->name, name ) == 0 ) {
return i;
}
}
return -1;
}
void catch_exit ( G_GNUC_UNUSED int sig )
{
while ( 0 < waitpid ( -1, NULL, WNOHANG ) ) {
;
}
}
Window main_window = None;
GC gc = NULL;
Colormap map = None;
XVisualInfo vinfo;
/**
* @param display Connection to the X server.
* @param x11_fd File descriptor from the X server to listen on.
*
* Function waits for a new XEvent with a timeout.
*/
static inline MainLoopEvent wait_for_xevent_or_timeout ( Display *display, int x11_fd )
{
// Check if events are pending.
if ( XPending ( display ) ) {
return ML_XEVENT;
}
// If not, wait for timeout.
struct timeval tv;
fd_set in_fds;
// Create a File Description Set containing x11_fd
FD_ZERO ( &in_fds );
FD_SET ( x11_fd, &in_fds );
// Set our timer. 200ms is a decent delay
tv.tv_usec = 200000;
tv.tv_sec = 0;
// Wait for X Event or a Timer
if ( select ( x11_fd + 1, &in_fds, 0, 0, &tv ) == 0 ) {
return ML_TIMEOUT;
}
return ML_XEVENT;
}
static void menu_hide_arrow_text ( int filtered_lines, int selected, int max_elements,
textbox *arrowbox_top, textbox *arrowbox_bottom )
{
if ( arrowbox_top == NULL || arrowbox_bottom == NULL ) {
return;
}
int page = ( filtered_lines > 0 ) ? selected / max_elements : 0;
int npages = ( filtered_lines > 0 ) ? ( ( filtered_lines + max_elements - 1 ) / max_elements ) : 1;
if ( !( page != 0 && npages > 1 ) ) {
textbox_hide ( arrowbox_top );
}
if ( !( ( npages - 1 ) != page && npages > 1 ) ) {
textbox_hide ( arrowbox_bottom );
}
}
static void menu_set_arrow_text ( int filtered_lines, int selected, int max_elements,
textbox *arrowbox_top, textbox *arrowbox_bottom )
{
if ( arrowbox_top == NULL || arrowbox_bottom == NULL ) {
return;
}
if ( filtered_lines == 0 || max_elements == 0 ) {
return;
}
int page = ( filtered_lines > 0 ) ? selected / max_elements : 0;
int npages = ( filtered_lines > 0 ) ? ( ( filtered_lines + max_elements - 1 ) / max_elements ) : 1;
int entry = selected % max_elements;
if ( page != 0 && npages > 1 ) {
textbox_show ( arrowbox_top );
textbox_font ( arrowbox_top, ( entry != 0 ) ? NORMAL : HIGHLIGHT );
textbox_draw ( arrowbox_top );
}
if ( ( npages - 1 ) != page && npages > 1 ) {
textbox_show ( arrowbox_bottom );
textbox_font ( arrowbox_bottom, ( entry != ( max_elements - 1 ) ) ? NORMAL : HIGHLIGHT );
textbox_draw ( arrowbox_bottom );
}
}
static int lev_sort ( const void *p1, const void *p2, void *arg )
{
const int *a = p1;
const int *b = p2;
int *distances = arg;
return distances[*a] - distances[*b];
}
static int dist ( const char *s, const char *t, int *d, int ls, int lt, int i, int j )
{
if ( d[i * ( lt + 1 ) + j] >= 0 ) {
return d[i * ( lt + 1 ) + j];
}
int x;
if ( i == ls ) {
x = lt - j;
}
else if ( j == lt ) {
x = ls - i;
}
else if ( s[i] == t[j] ) {
x = dist ( s, t, d, ls, lt, i + 1, j + 1 );
}
else {
x = dist ( s, t, d, ls, lt, i + 1, j + 1 );
int y;
if ( ( y = dist ( s, t, d, ls, lt, i, j + 1 ) ) < x ) {
x = y;
}
if ( ( y = dist ( s, t, d, ls, lt, i + 1, j ) ) < x ) {
x = y;
}
x++;
}
return d[i * ( lt + 1 ) + j] = x;
}
static int levenshtein ( const char *s, const char *t )
{
int ls = strlen ( s ), lt = strlen ( t );
size_t array_length = ( ls + 1 ) * ( lt + 1 );
// For some reason Coverity does not get that I initialize the
// array in for loop.
int d[array_length];
for ( size_t i = 0; i < array_length; i++ ) {
d[i] = -1;
}
return dist ( s, t, d, ls, lt, 0, 0 );
}
static Window create_window ( Display *display )
{
XSetWindowAttributes attr;
attr.colormap = map;
attr.border_pixel = color_get ( display, config.menu_bc );
attr.background_pixel = color_get ( display, config.menu_bg );
Window box = XCreateWindow ( display, DefaultRootWindow ( display ),
0, 0, 200, 100, config.menu_bw, vinfo.depth, InputOutput,
vinfo.visual, CWColormap | CWBorderPixel | CWBackPixel, &attr );
XSelectInput ( display, box, ExposureMask | ButtonPressMask );
gc = XCreateGC ( display, box, 0, 0 );
XSetLineAttributes ( display, gc, 2, LineOnOffDash, CapButt, JoinMiter );
XSetForeground ( display, gc, color_get ( display, config.menu_bc ) );
// make it an unmanaged window
window_set_atom_prop ( display, box, netatoms[_NET_WM_STATE], &netatoms[_NET_WM_STATE_ABOVE], 1 );
XSetWindowAttributes sattr;
sattr.override_redirect = True;
XChangeWindowAttributes ( display, box, CWOverrideRedirect, &sattr );
// Set the WM_NAME
XStoreName ( display, box, "rofi" );
x11_set_window_opacity ( display, box, config.window_opacity );
return box;
}
// State of the menu.
typedef struct MenuState
{
unsigned int menu_lines;
unsigned int max_elements;
unsigned int max_rows;
unsigned int columns;
// window width,height
unsigned int w, h;
int x, y;
unsigned int element_width;
// Update/Refilter list.
int update;
int refilter;
int rchanged;
int cur_page;
// Entries
textbox *text;
textbox *prompt_tb;
textbox *case_indicator;
textbox *arrowbox_top;
textbox *arrowbox_bottom;
textbox **boxes;
int *distance;
int *line_map;
unsigned int num_lines;
// Selected element.
unsigned int selected;
unsigned int filtered_lines;
// Last offset in paginating.
unsigned int last_offset;
KeySym prev_key;
Time last_button_press;
int quit;
int init;
// Return state
int *selected_line;
MenuReturn retv;
char **lines;
int line_height;
get_display_value mgrv;
void *mgrv_data;
}MenuState;
/**
* @param state Internal state of the menu.
*
* Free the allocated fields in the state.
*/
static void menu_free_state ( MenuState *state )
{
textbox_free ( state->text );
textbox_free ( state->prompt_tb );
textbox_free ( state->case_indicator );
textbox_free ( state->arrowbox_bottom );
textbox_free ( state->arrowbox_top );
for ( unsigned int i = 0; i < state->max_elements; i++ ) {
textbox_free ( state->boxes[i] );
}
g_free ( state->boxes );
g_free ( state->line_map );
g_free ( state->distance );
}
/**
* @param x [out] the calculated x position.
* @param y [out] the calculated y position.
* @param mon the work area.
* @param h the required height of the window.
* @param w the required width of the window.
*/
static void calculate_window_position ( MenuState *state, const workarea *mon )
{
// Default location is center.
state->y = mon->y + ( mon->h - state->h - config.menu_bw * 2 ) / 2;
state->x = mon->x + ( mon->w - state->w - config.menu_bw * 2 ) / 2;
// Determine window location
switch ( config.location )
{
case WL_NORTH_WEST:
state->x = mon->x;
case WL_NORTH:
state->y = mon->y;
break;
case WL_NORTH_EAST:
state->y = mon->y;
case WL_EAST:
state->x = mon->x + mon->w - state->w - config.menu_bw * 2;
break;
case WL_EAST_SOUTH:
state->x = mon->x + mon->w - state->w - config.menu_bw * 2;
case WL_SOUTH:
state->y = mon->y + mon->h - state->h - config.menu_bw * 2;
break;
case WL_SOUTH_WEST:
state->y = mon->y + mon->h - state->h - config.menu_bw * 2;
case WL_WEST:
state->x = mon->x;
break;
case WL_CENTER:
default:
break;
}
// Apply offset.
state->x += config.x_offset;
state->y += config.y_offset;
}
/**
* @param state Internal state of the menu.
* @param num_lines the number of entries passed to the menu.
*
* Calculate the number of rows, columns and elements to display based on the
* configuration and available data.
*/
static void menu_calculate_rows_columns ( MenuState *state )
{
state->columns = config.menu_columns;
state->max_elements = MIN ( state->menu_lines * state->columns, state->num_lines );
// Calculate the number or rows. We do this by getting the num_lines rounded up to X columns
// (num elements is better name) then dividing by columns.
state->max_rows = MIN ( state->menu_lines,
(unsigned int) (
( state->num_lines + ( state->columns - state->num_lines % state->columns ) %
state->columns ) / ( state->columns )
) );
if ( config.fixed_num_lines == TRUE ) {
state->max_elements = state->menu_lines * state->columns;
state->max_rows = state->menu_lines;
// If it would fit in one column, only use one column.
if ( state->num_lines < state->max_elements ) {
state->columns = ( state->num_lines + ( state->max_rows - state->num_lines % state->max_rows ) %
state->max_rows ) / state->max_rows;
state->max_elements = state->menu_lines * state->columns;
}
// Sanitize.
if ( state->columns == 0 ) {
state->columns = 1;
}
}
}
/**
* @param state Internal state of the menu.
* @param mon the dimensions of the monitor rofi is displayed on.
*
* Calculate the width of the window and the width of an element.
*/
static void menu_calculate_window_and_element_width ( MenuState *state, workarea *mon )
{
if ( config.menu_width < 0 ) {
double fw = textbox_get_estimated_char_width ( );
state->w = -( fw * config.menu_width );
state->w += 2 * config.padding + 4; // 4 = 2*SIDE_MARGIN
// Compensate for border width.
state->w -= config.menu_bw * 2;
}
else{
// Calculate as float to stop silly, big rounding down errors.
state->w = config.menu_width < 101 ? ( mon->w / 100.0f ) * ( float ) config.menu_width : config.menu_width;
// Compensate for border width.
state->w -= config.menu_bw * 2;
}
if ( state->columns > 0 ) {
state->element_width = state->w - ( 2 * ( config.padding ) );
// Divide by the # columns
state->element_width = ( state->element_width - ( state->columns - 1 ) * LINE_MARGIN ) / state->columns;
}
}
/**
* Nav helper functions, to avoid duplicate code.
*/
/**
* @param state The current MenuState
*
* Move the selection one column to the right.
* - No wrap around.
* - Do not move to top row when at start.
*/
inline static void menu_nav_right ( MenuState *state )
{
if ( ( state->selected + state->max_rows ) < state->filtered_lines ) {
state->selected += state->max_rows;
state->update = TRUE;
}
else if ( state->selected < ( state->filtered_lines - 1 ) ) {
// We do not want to move to last item, UNLESS the last column is only
// partially filled, then we still want to move column and select last entry.
// First check the column we are currently in.
int col = state->selected / state->max_rows;
// Check total number of columns.
int ncol = state->filtered_lines / state->max_rows;
// If there is an extra column, move.
if ( col != ncol ) {
state->selected = state->filtered_lines - 1;
state->update = TRUE;
}
}
}
/**
* @param state The current MenuState
*
* Move the selection one column to the left.
* - No wrap around.
*/
inline static void menu_nav_left ( MenuState *state )
{
if ( state->selected >= state->max_rows ) {
state->selected -= state->max_rows;
state->update = TRUE;
}
}
/**
* @param state The current MenuState
*
* Move the selection one row up.
* - Wrap around.
*/
inline static void menu_nav_up ( MenuState *state )
{
// Wrap around.
if ( state->selected == 0 ) {
state->selected = state->filtered_lines;
}
if ( state->selected > 0 ) {
state->selected--;
}
state->update = TRUE;
}
/**
* @param state The current MenuState
*
* Move the selection one row down.
* - Wrap around.
*/
inline static void menu_nav_down ( MenuState *state )
{
state->selected = state->selected < state->filtered_lines - 1 ? MIN (
state->filtered_lines - 1, state->selected + 1 ) : 0;
state->update = TRUE;
}
/**
* @param key the Key to match
* @param modstate the modifier state to match
*
* Match key and modifier state against switchers.
*
* @return the index of the switcher that matches the key combination
* specified by key and modstate. Returns -1 if none was found
*/
extern unsigned int NumlockMask;
static int locate_switcher ( KeySym key, unsigned int modstate )
{
// ignore annoying modifiers
unsigned int modstate_filtered = modstate & ~( LockMask | NumlockMask );
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( switchers[i]->keystr != NULL ) {
if ( ( modstate_filtered == switchers[i]->modmask ) &&
switchers[i]->keysym == key ) {
return i;
}
}
}
return -1;
}
/**
* @param state Internal state of the menu.
* @param key the Key being pressed.
* @param modstate the modifier state.
*
* Keyboard navigation through the elements.
*/
static void menu_keyboard_navigation ( MenuState *state, KeySym key, unsigned int modstate )
{
// pressing one of the global key bindings closes the switcher. This allows fast closing of the
// menu if an item is not selected
if ( locate_switcher ( key, modstate ) != -1 || key == XK_Escape ) {
state->retv = MENU_CANCEL;
state->quit = TRUE;
}
// Up, Ctrl-p or Shift-Tab
else if ( key == XK_Up || ( key == XK_Tab && modstate & ShiftMask ) ||
( key == XK_p && modstate & ControlMask ) ) {
menu_nav_up ( state );
}
else if ( key == XK_Tab ) {
if ( state->filtered_lines == 1 ) {
state->retv = MENU_OK;
*( state->selected_line ) = state->line_map[state->selected];
state->quit = 1;
return;
}
// Double tab!
if ( state->filtered_lines == 0 && key == state->prev_key ) {
state->retv = MENU_NEXT;
*( state->selected_line ) = 0;
state->quit = TRUE;
}
else{
state->selected = state->selected < state->filtered_lines - 1 ? MIN (
state->filtered_lines - 1, state->selected + 1 ) : 0;
state->update = TRUE;
}
}
// Down, Ctrl-n
else if ( key == XK_Down ||
( key == XK_n && ( modstate & ControlMask ) ) ) {
menu_nav_down ( state );
}
else if ( key == XK_Page_Up && ( modstate & ControlMask ) ) {
menu_nav_left ( state );
}
else if ( key == XK_Page_Down && ( modstate & ControlMask ) ) {
menu_nav_right ( state );
}
else if ( key == XK_Page_Up ) {
if ( state->selected < state->max_elements ) {
state->selected = 0;
}
else{
state->selected -= ( state->max_elements );
}
state->update = TRUE;
}
else if ( key == XK_Page_Down ) {
state->selected += ( state->max_elements );
if ( state->selected >= state->filtered_lines ) {
state->selected = state->filtered_lines - 1;
}
state->update = TRUE;
}
else if ( key == XK_Home || key == XK_KP_Home ) {
state->selected = 0;
state->update = TRUE;
}
else if ( key == XK_End || key == XK_KP_End ) {
state->selected = state->filtered_lines - 1;
state->update = TRUE;
}
else if ( key == XK_space && ( modstate & ControlMask ) == ControlMask ) {
// If a valid item is selected, return that..
if ( state->selected < state->filtered_lines ) {
textbox_text ( state->text, state->lines[state->line_map[state->selected]] );
textbox_cursor_end ( state->text );
state->update = TRUE;
state->refilter = TRUE;
}
}
state->prev_key = key;
}
/**
* @param state Internal state of the menu.
* @param xbe The mouse button press event.
*
* mouse navigation through the elements.
*
*/
static void menu_mouse_navigation ( MenuState *state, XButtonEvent *xbe )
{
// Scroll event
if ( xbe->button > 3 ) {
if ( xbe->button == 4 ) {
menu_nav_up ( state );
}
else if ( xbe->button == 5 ) {
menu_nav_down ( state );
}
else if ( xbe->button == 6 ) {
menu_nav_left ( state );
}
else if ( xbe->button == 7 ) {
menu_nav_right ( state );
}
return;
}
if ( xbe->window == state->arrowbox_top->window ) {
// Page up.
if ( state->selected < state->max_rows ) {
state->selected = 0;
}
else{
state->selected -= state->max_elements;
}
state->update = TRUE;
}
else if ( xbe->window == state->arrowbox_bottom->window ) {
// Page down.
state->selected += state->max_elements;
if ( state->selected >= state->filtered_lines ) {
state->selected = state->filtered_lines - 1;
}
state->update = TRUE;
}
else {
for ( unsigned int i = 0; config.sidebar_mode == TRUE && i < num_switchers; i++ ) {
if ( switchers[i]->tb->window == ( xbe->window ) ) {
*( state->selected_line ) = i;
state->retv = MENU_QUICK_SWITCH;
state->quit = TRUE;
return;
}
}
for ( unsigned int i = 0; i < state->max_elements; i++ ) {
if ( ( xbe->window ) == ( state->boxes[i]->window ) ) {
// Only allow items that are visible to be selected.
if ( ( state->last_offset + i ) >= state->filtered_lines ) {
break;
}
//
state->selected = state->last_offset + i;
state->update = TRUE;
if ( ( xbe->time - state->last_button_press ) < 200 ) {
state->retv = MENU_OK;
*( state->selected_line ) = state->line_map[state->selected];
// Quit
state->quit = TRUE;
}
state->last_button_press = xbe->time;
break;
}
}
}
}
static void menu_refilter ( MenuState *state, char **lines, menu_match_cb mmc, void *mmc_data,
int sorting, int case_sensitive )
{
if ( strlen ( state->text->text ) > 0 ) {
unsigned int j = 0;
char **tokens = tokenize ( state->text->text, case_sensitive );
// input changed
for ( unsigned int i = 0; i < state->num_lines; i++ ) {
int match = mmc ( tokens, lines[i], case_sensitive, i, mmc_data );
// If each token was matched, add it to list.
if ( match ) {
state->line_map[j] = i;
if ( sorting ) {
state->distance[i] = levenshtein ( state->text->text, lines[i] );
}
// Try to look-up the selected line and highlight that.
// This is needed 'hack' to fix the dmenu 'next row' modi.
// int to unsigned int is valid because we check negativeness of
// selected_line
if ( state->init == TRUE && ( state->selected_line ) != NULL &&
( *( state->selected_line ) ) >= 0 &&
( (unsigned int) ( *( state->selected_line ) ) ) == i ) {
state->selected = j;
state->init = FALSE;
}
j++;
}
}
if ( sorting ) {
qsort_r ( state->line_map, j, sizeof ( int ), lev_sort, state->distance );
}
// Cleanup + bookkeeping.
state->filtered_lines = j;
g_strfreev ( tokens );
}
else{
for ( unsigned int i = 0; i < state->num_lines; i++ ) {
state->line_map[i] = i;
}
state->filtered_lines = state->num_lines;
}
state->selected = MIN ( state->selected, state->filtered_lines - 1 );
if ( config.auto_select == TRUE && state->filtered_lines == 1 && state->num_lines > 1 ) {
*( state->selected_line ) = state->line_map[state->selected];
state->retv = MENU_OK;
state->quit = TRUE;
}
state->refilter = FALSE;
state->rchanged = TRUE;
}
static void menu_draw ( MenuState *state )
{
unsigned int i, offset = 0;
// selected row is always visible.
// If selected is visible do not scroll.
if ( ( ( state->selected - ( state->last_offset ) ) < ( state->max_elements ) )
&& ( state->selected >= ( state->last_offset ) ) ) {
offset = state->last_offset;
}
else{
// Do paginating
int page = ( state->max_elements > 0 ) ? ( state->selected / state->max_elements ) : 0;
offset = page * state->max_elements;
state->last_offset = offset;
if ( page != state->cur_page ) {
state->cur_page = page;
state->rchanged = TRUE;
}
}
// Re calculate the boxes and sizes, see if we can move this in the menu_calc*rowscolumns
// Get number of remaining lines to display.
unsigned int a_lines = MIN ( ( state->filtered_lines - offset ), state->max_elements );
// Calculate number of columns
unsigned int columns = ( a_lines + ( state->max_rows - a_lines % state->max_rows ) %
state->max_rows ) / state->max_rows;
columns = MIN ( columns, state->columns );
// Element width.
unsigned int element_width = state->w - ( 2 * ( config.padding ) );
if ( columns > 0 ) {
element_width = ( element_width - ( columns - 1 ) * LINE_MARGIN ) / columns;
}
int element_height = state->line_height * config.element_height;
int y_offset = config.padding + state->line_height;
int x_offset = config.padding;
// Calculate number of visible rows.
unsigned int max_elements = MIN ( a_lines, state->max_rows * columns );
// Hide now invisible boxes.
for ( i = max_elements; i < state->max_elements; i++ ) {
textbox_hide ( state->boxes[i] );
}
if ( state->rchanged ) {
// Move, resize visible boxes and show them.
for ( i = 0; i < max_elements; i++ ) {
unsigned int ex = ( ( i ) / state->max_rows ) * ( element_width + LINE_MARGIN );
unsigned int ey = ( ( i ) % state->max_rows ) * element_height + LINE_MARGIN;
// Move it around.
textbox_moveresize ( state->boxes[i],
ex + x_offset, ey + y_offset,
element_width, element_height );
{
TextBoxFontType type = ( ( ( i % state->max_rows ) & 1 ) == 0 ) ? NORMAL : ALT;
int fstate = 0;
const char *text = state->mgrv ( state->line_map[i + offset], state->mgrv_data, &fstate );
TextBoxFontType tbft = fstate | ( ( i + offset ) == state->selected ? HIGHLIGHT : type );
textbox_font ( state->boxes[i], tbft );
textbox_text ( state->boxes[i], text );
}
textbox_show ( state->boxes[i] );
textbox_draw ( state->boxes[i] );
}
state->rchanged = FALSE;
}
else{
// Only do basic redrawing + highlight of row.
for ( i = 0; i < max_elements; i++ ) {
TextBoxFontType type = ( ( ( i % state->max_rows ) & 1 ) == 0 ) ? NORMAL : ALT;
int fstate = 0;
state->mgrv ( state->line_map[i + offset], state->mgrv_data, &fstate );
TextBoxFontType tbft = fstate | ( ( i + offset ) == state->selected ? HIGHLIGHT : type );
textbox_font ( state->boxes[i], tbft );
textbox_draw ( state->boxes[i] );
}
}
}
static void menu_update ( MenuState *state )
{
menu_hide_arrow_text ( state->filtered_lines, state->selected,
state->max_elements, state->arrowbox_top,
state->arrowbox_bottom );
textbox_draw ( state->case_indicator );
textbox_draw ( state->prompt_tb );
textbox_draw ( state->text );
menu_draw ( state );
menu_set_arrow_text ( state->filtered_lines, state->selected,
state->max_elements, state->arrowbox_top,
state->arrowbox_bottom );
// Why do we need the special -1?
XDrawLine ( display, main_window, gc, ( config.padding ),
state->line_height + ( config.padding ) + ( LINE_MARGIN ) / 2,
state->w - ( ( config.padding ) ) - 1,
state->line_height + ( config.padding ) + ( LINE_MARGIN ) / 2 );
if ( config.sidebar_mode == TRUE ) {
XDrawLine ( display, main_window, gc,
( config.padding ),
state->h - state->line_height - ( config.padding ) - LINE_MARGIN,
state->w - ( ( config.padding ) ) - 1,
state->h - state->line_height - ( config.padding ) - LINE_MARGIN );
for ( unsigned int j = 0; j < num_switchers; j++ ) {
textbox_draw ( switchers[j]->tb );
}
}
state->update = FALSE;
}
/**
* @param state Internal state of the menu.
* @param xse X selection event.
*
* Handle paste event.
*/
static void menu_paste ( MenuState *state, XSelectionEvent *xse )
{
if ( xse->property == netatoms[UTF8_STRING] ) {
gchar *text = window_get_text_prop ( display, main_window, netatoms[UTF8_STRING] );
if ( text != NULL && text[0] != '\0' ) {
unsigned int dl = strlen ( text );
// Strip new line
while ( dl > 0 && text[dl] == '\n' ) {
text[dl] = '\0';
dl--;
}
// Insert string move cursor.
textbox_insert ( state->text, state->text->cursor, text );
textbox_cursor ( state->text, state->text->cursor + dl );
// Force a redraw and refiltering of the text.
state->update = TRUE;
state->refilter = TRUE;
}
g_free ( text );
}
}
MenuReturn menu ( char **lines, unsigned int num_lines, char **input, char *prompt,
menu_match_cb mmc, void *mmc_data, int *selected_line, int sorting,
get_display_value mgrv, void *mgrv_data )
{
int shift = FALSE;
MenuState state = {
.selected_line = selected_line,
.retv = MENU_CANCEL,
.prev_key = 0,
.last_button_press = 0,
.last_offset = 0,
.num_lines = num_lines,
.distance = NULL,
.init = TRUE,
.quit = FALSE,
.filtered_lines = 0,
.max_elements = 0,
// We want to filter on the first run.
.refilter = TRUE,
.update = FALSE,
.rchanged = TRUE,
.cur_page = -1,
.lines = lines,
.mgrv = mgrv,
.mgrv_data = mgrv_data
};
unsigned int i;
workarea mon;
// main window isn't explicitly destroyed in case we switch modes. Reusing it prevents flicker
XWindowAttributes attr;
if ( main_window == None || XGetWindowAttributes ( display, main_window, &attr ) == 0 ) {
main_window = create_window ( display );
}
// Get active monitor size.
monitor_active ( display, &mon );
// we need this at this point so we can get height.
state.case_indicator = textbox_create ( main_window, &vinfo, map, TB_AUTOHEIGHT | TB_AUTOWIDTH,
( config.padding ), ( config.padding ),
0, 0,
NORMAL, "*" );
state.line_height = textbox_get_estimated_char_height ();
// Height of a row.
if ( config.menu_lines == 0 ) {
// Autosize it.
int h = mon.h - config.padding * 2 - LINE_MARGIN - config.menu_bw * 2;
int r = ( h ) / ( state.line_height * config.element_height ) - 1 - config.sidebar_mode;
state.menu_lines = r;
}
else {
state.menu_lines = config.menu_lines;
}
menu_calculate_rows_columns ( &state );
menu_calculate_window_and_element_width ( &state, &mon );
// Prompt box.
state.prompt_tb = textbox_create ( main_window, &vinfo, map, TB_AUTOWIDTH,
( config.padding ),
( config.padding ),
0, state.line_height, NORMAL, prompt );
// Entry box
int entrybox_width = state.w
- ( 2 * ( config.padding ) )
- textbox_get_width ( state.prompt_tb )
- textbox_get_width ( state.case_indicator );
state.text = textbox_create ( main_window, &vinfo, map, TB_EDITABLE,
( config.padding ) + textbox_get_width ( state.prompt_tb ),
( config.padding ),
entrybox_width, state.line_height,
NORMAL,
*input );
// Move indicator to end.
textbox_move ( state.case_indicator,
config.padding + textbox_get_width ( state.prompt_tb ) + entrybox_width,
0 );
textbox_show ( state.text );
textbox_show ( state.prompt_tb );
if ( config.case_sensitive ) {
textbox_show ( state.case_indicator );
}
int element_height = state.line_height * config.element_height;
// filtered list display
state.boxes = g_malloc0_n ( state.max_elements, sizeof ( textbox* ) );
int y_offset = config.padding + state.line_height;
int x_offset = config.padding;
for ( i = 0; i < state.max_elements; i++ ) {
state.boxes[i] = textbox_create ( main_window, &vinfo, map, 0,
x_offset, y_offset,
state.element_width, element_height, NORMAL, "" );
textbox_show ( state.boxes[i] );
}
// Arrows
state.arrowbox_top = textbox_create ( main_window, &vinfo, map, TB_AUTOWIDTH,
( config.padding ), ( config.padding ),
0, element_height, NORMAL,
"↑" );
state.arrowbox_bottom = textbox_create ( main_window, &vinfo, map, TB_AUTOWIDTH,
( config.padding ), ( config.padding ),
0, element_height, NORMAL,
"↓" );
textbox_move ( state.arrowbox_top,
state.w - config.padding - state.arrowbox_top->w,
config.padding + state.line_height + LINE_MARGIN );
// TODO calculate from top.
textbox_move ( state.arrowbox_bottom,
state.w - config.padding - state.arrowbox_bottom->w,
config.padding + state.max_rows * element_height + LINE_MARGIN );
// filtered list
state.line_map = g_malloc0_n ( state.num_lines, sizeof ( int ) );
if ( sorting ) {
state.distance = (int *) g_malloc0_n ( state.num_lines, sizeof ( int ) );
}
// resize window vertically to suit
// Subtract the margin of the last row.
state.h = state.line_height + element_height * state.max_rows + ( config.padding ) * 2 + LINE_MARGIN;
// Add entry
if ( config.sidebar_mode == TRUE ) {
state.h += state.line_height + LINE_MARGIN * 2;
}
// Sidebar mode.
if ( config.menu_lines == 0 ) {
state.h = mon.h - config.menu_bw * 2;
}
// Move the window to the correct x,y position.
calculate_window_position ( &state, &mon );
if ( config.sidebar_mode == TRUE ) {
int width = ( state.w - ( 2 * ( config.padding ) + ( num_switchers - 1 ) * LINE_MARGIN ) ) / num_switchers;
for ( unsigned int j = 0; j < num_switchers; j++ ) {
switchers[j]->tb = textbox_create ( main_window, &vinfo, map, TB_CENTER,
config.padding + j * ( width + LINE_MARGIN ),
state.h - state.line_height - config.padding,
width, state.line_height, ( j == curr_switcher ) ? HIGHLIGHT : NORMAL, switchers[j]->name );
textbox_show ( switchers[j]->tb );
}
}
// Display it.
XMoveResizeWindow ( display, main_window, state.x, state.y, state.w, state.h );
XMapRaised ( display, main_window );
// if grabbing keyboard failed, fall through
state.selected = 0;
// The cast to unsigned in here is valid, we checked if selected_line > 0.
// So its maximum range is 0-2³¹, well within the num_lines range.
if ( ( *( state.selected_line ) ) >= 0 && (unsigned int) ( *( state.selected_line ) ) <= state.num_lines ) {
state.selected = *( state.selected_line );
}
state.quit = FALSE;
menu_refilter ( &state, lines, mmc, mmc_data, sorting, config.case_sensitive );
int x11_fd = ConnectionNumber ( display );
int has_keyboard = take_keyboard ( display, main_window );
while ( !state.quit ) {
// Update if requested.
if ( state.update ) {
menu_update ( &state );
}
// Wait for event.
XEvent ev;
// Only use lazy mode above 5000 lines.
// Or if we still need to get window.
MainLoopEvent mle = ML_XEVENT;
// If we are in lazy mode, or trying to grab keyboard, go into timeout.
// Otherwise continue like we had an XEvent (and we will block on fetching this event).
if ( !has_keyboard || ( state.refilter && state.num_lines > config.lazy_filter_limit ) ) {
mle = wait_for_xevent_or_timeout ( display, x11_fd );
// Whatever happened, try to get keyboard.
has_keyboard = take_keyboard ( display, main_window );
}
// If not in lazy mode, refilter.
if ( state.num_lines <= config.lazy_filter_limit ) {
if ( state.refilter ) {
menu_refilter ( &state, lines, mmc, mmc_data, sorting, config.case_sensitive );
menu_update ( &state );
}
}
else if ( mle == ML_TIMEOUT ) {
// When timeout (and in lazy filter mode)
// We refilter then loop back and wait for Xevent.
if ( state.refilter ) {
menu_refilter ( &state, lines, mmc, mmc_data, sorting, config.case_sensitive );
menu_update ( &state );
}
}
if ( mle == ML_TIMEOUT ) {
continue;
}
// Get next event. (might block)
XNextEvent ( display, &ev );
// Handle event.
if ( ev.type == Expose ) {
while ( XCheckTypedEvent ( display, Expose, &ev ) ) {
;
}
state.update = TRUE;
}
// Button press event.
else if ( ev.type == ButtonPress ) {
while ( XCheckTypedEvent ( display, ButtonPress, &ev ) ) {
;
}
menu_mouse_navigation ( &state, &( ev.xbutton ) );
}
// Paste event.
else if ( ev.type == SelectionNotify ) {
do {
menu_paste ( &state, &( ev.xselection ) );
} while ( XCheckTypedEvent ( display, SelectionNotify, &ev ) );
}
// Key press event.
else if ( ev.type == KeyPress ) {
do {
KeySym key = XkbKeycodeToKeysym ( display, ev.xkey.keycode, 0, 0 );
// Handling of paste
if ( ( ( ( ev.xkey.state & ControlMask ) == ControlMask ) && key == XK_v ) ) {
XConvertSelection ( display, ( ev.xkey.state & ShiftMask ) ?
XA_PRIMARY : netatoms[CLIPBOARD],
netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window, CurrentTime );
}
else if ( key == XK_Insert ) {
XConvertSelection ( display, ( ev.xkey.state & ShiftMask ) ?
XA_PRIMARY : netatoms[CLIPBOARD],
netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window, CurrentTime );
}
else if ( ( ( ev.xkey.state & ShiftMask ) == ShiftMask ) && key == XK_Left ) {
state.retv = MENU_PREVIOUS;
*( state.selected_line ) = 0;
state.quit = TRUE;
break;
}
else if ( ( ( ev.xkey.state & ControlMask ) == ControlMask ) && key == XK_Tab ) {
if ( ( ev.xkey.state & ShiftMask ) == ShiftMask ) {
state.retv = MENU_PREVIOUS;
}
else{
state.retv = MENU_NEXT;
}
*( state.selected_line ) = 0;
state.quit = TRUE;
break;
}
// Menu navigation.
else if ( ( ( ev.xkey.state & ShiftMask ) == ShiftMask ) &&
key == XK_Right ) {
state.retv = MENU_NEXT;
*( state.selected_line ) = 0;
state.quit = TRUE;
break;
}
// Toggle case sensitivity.
else if ( key == XK_grave || key == XK_dead_grave
|| key == XK_acute ) {
config.case_sensitive = !config.case_sensitive;
*( state.selected_line ) = 0;
state.refilter = TRUE;
state.update = TRUE;
if ( config.case_sensitive ) {
textbox_show ( state.case_indicator );
}
else {
textbox_hide ( state.case_indicator );
}
}
// Switcher short-cut
else if ( ( ( ev.xkey.state & Mod1Mask ) == Mod1Mask ) &&
key >= XK_1 && key <= XK_9 ) {
*( state.selected_line ) = ( key - XK_1 );
state.retv = MENU_QUICK_SWITCH;
state.quit = TRUE;
break;
}
// Special delete entry command.
else if ( ( ( ev.xkey.state & ShiftMask ) == ShiftMask ) &&
key == XK_Delete ) {
if ( state.selected < state.filtered_lines ) {
*( state.selected_line ) = state.line_map[state.selected];
state.retv = MENU_ENTRY_DELETE;
state.quit = TRUE;
break;
}
}
else{
int rc = textbox_keypress ( state.text, &ev );
// Row is accepted.
if ( rc < 0 ) {
shift = ( ( ev.xkey.state & ShiftMask ) == ShiftMask );
// If a valid item is selected, return that..
if ( state.selected < state.filtered_lines ) {
*( state.selected_line ) = state.line_map[state.selected];
if ( strlen ( state.text->text ) > 0 && rc == -2 ) {
state.retv = MENU_CUSTOM_INPUT;
}
else {
state.retv = MENU_OK;
}
}
else if ( strlen ( state.text->text ) > 0 ) {
state.retv = MENU_CUSTOM_INPUT;
}
else{
// Nothing entered and nothing selected.
state.retv = MENU_CANCEL;
}
state.quit = TRUE;
}
// Key press is handled by entry box.
else if ( rc > 0 ) {
state.refilter = TRUE;
state.update = TRUE;
}
// Other keys.
else{
// unhandled key
menu_keyboard_navigation ( &state, key, ev.xkey.state );
}
}
} while ( XCheckTypedEvent ( display, KeyPress, &ev ) );
}
}
// Update input string.
g_free ( *input );
*input = g_strdup ( state.text->text );
int retv = state.retv;
menu_free_state ( &state );
if ( shift ) {
retv |= MENU_SHIFT;
}
// Free the switcher boxes.
// When state is free'ed we should no longer need these.
if ( config.sidebar_mode == TRUE ) {
for ( unsigned int j = 0; j < num_switchers; j++ ) {
textbox_free ( switchers[j]->tb );
switchers[j]->tb = NULL;
}
}
return retv;
}
void error_dialog ( const char *msg )
{
MenuState state = {
.selected_line = NULL,
.retv = MENU_CANCEL,
.prev_key = 0,
.last_button_press = 0,
.last_offset = 0,
.num_lines = 0,
.distance = NULL,
.init = FALSE,
.quit = FALSE,
.filtered_lines = 0,
.columns = 0,
.update = TRUE,
};
workarea mon;
// Get active monitor size.
monitor_active ( display, &mon );
// main window isn't explicitly destroyed in case we switch modes. Reusing it prevents flicker
XWindowAttributes attr;
if ( main_window == None || XGetWindowAttributes ( display, main_window, &attr ) == 0 ) {
main_window = create_window ( display );
}
menu_calculate_window_and_element_width ( &state, &mon );
state.max_elements = 0;
state.text = textbox_create ( main_window, &vinfo, map, TB_AUTOHEIGHT,
( config.padding ),
( config.padding ),
( state.w - ( 2 * ( config.padding ) ) ),
1,
NORMAL,
( msg != NULL ) ? msg : "" );
textbox_show ( state.text );
state.line_height = textbox_get_height ( state.text );
// resize window vertically to suit
state.h = state.line_height + ( config.padding ) * 2;
// Move the window to the correct x,y position.
calculate_window_position ( &state, &mon );
XMoveResizeWindow ( display, main_window, state.x, state.y, state.w, state.h );
// Display it.
XMapRaised ( display, main_window );
int x11_fd = ConnectionNumber ( display );
int has_keyboard = take_keyboard ( display, main_window );
while ( !state.quit ) {
// Update if requested.
if ( state.update ) {
textbox_draw ( state.text );
state.update = FALSE;
}
// Wait for event.
XEvent ev;
MainLoopEvent mle = ML_XEVENT;
if ( !has_keyboard ) {
mle = wait_for_xevent_or_timeout ( display, x11_fd );
has_keyboard = take_keyboard ( display, main_window );
}
if ( mle == ML_TIMEOUT ) {
// Loop.
continue;
}
XNextEvent ( display, &ev );
// Handle event.
if ( ev.type == Expose ) {
while ( XCheckTypedEvent ( display, Expose, &ev ) ) {
;
}
state.update = TRUE;
}
// Key press event.
else if ( ev.type == KeyPress ) {
while ( XCheckTypedEvent ( display, KeyPress, &ev ) ) {
;
}
state.quit = TRUE;
}
}
release_keyboard ( display );
}
/**
* Start dmenu mode.
*/
static int run_dmenu ()
{
// Create pid file
create_pid_file ( pidfile );
// Request truecolor visual.
create_visual_and_colormap ( display );
textbox_setup ( &vinfo, map,
config.menu_bg, config.menu_bg_alt, config.menu_fg,
config.menu_hlbg,
config.menu_hlfg );
char *input = NULL;
// Dmenu modi has a return state.
int ret_state = dmenu_switcher_dialog ( &input );
g_free ( input );
// Cleanup font setup.
textbox_cleanup ( );
if ( map != None ) {
XFreeColormap ( display, map );
map = None;
}
return ret_state;
}
static void run_switcher ( int do_fork, SwitcherMode mode )
{
// we fork because it's technically possible to have multiple window
// lists up at once on a zaphod multihead X setup.
// this also happens to isolate the Xft font stuff in a child process
// that gets cleaned up every time. That library shows some valgrind
// strangeness...
if ( do_fork == TRUE ) {
if ( fork () ) {
return;
}
display = XOpenDisplay ( display_str );
XSync ( display, True );
}
// Create pid file to avoid multiple instances.
create_pid_file ( pidfile );
// Create the colormap and the main visual.
create_visual_and_colormap ( display );
// Because of the above fork, we want to do this here.
// Make sure this is isolated to its own thread.
textbox_setup ( &vinfo, map,
config.menu_bg, config.menu_bg_alt, config.menu_fg,
config.menu_hlbg,
config.menu_hlfg );
// Otherwise check if requested mode is enabled.
char *input = NULL;
for ( unsigned int i = 0; i < num_switchers; i++ ) {
switchers[i]->init ( switchers[i] );
}
do {
SwitcherMode retv;
curr_switcher = mode;
retv = switcher_run ( &input, switchers[mode] );
// Find next enabled
if ( retv == NEXT_DIALOG ) {
mode = ( mode + 1 ) % num_switchers;
}
else if ( retv == PREVIOUS_DIALOG ) {
if ( mode == 0 ) {
mode = num_switchers - 1;
}
else {
mode = ( mode - 1 ) % num_switchers;
}
}
else if ( retv == RELOAD_DIALOG ) {
// do nothing.
}
else if ( retv < MODE_EXIT ) {
mode = ( retv ) % num_switchers;
}
else {
mode = retv;
}
} while ( mode != MODE_EXIT );
g_free ( input );
for ( unsigned int i = 0; i < num_switchers; i++ ) {
switchers[i]->destroy ( switchers[i] );
}
// Cleanup font setup.
textbox_cleanup ( );
if ( map != None ) {
XFreeColormap ( display, map );
map = None;
}
if ( do_fork == TRUE ) {
exit ( EXIT_SUCCESS );
}
}
/**
* Function that listens for global key-presses.
* This is only used when in daemon mode.
*/
static void handle_keypress ( XEvent *ev )
{
int index;
KeySym key = XkbKeycodeToKeysym ( display, ev->xkey.keycode, 0, 0 );
index = locate_switcher ( key, ev->xkey.state );
if ( index >= 0 ) {
run_switcher ( TRUE, index );
}
else {
fprintf ( stderr, "Warning: Unhandled keypress in global keyhandler, keycode = %u mask = %u\n", ev->xkey.keycode, ev->xkey.state );
}
}
/**
* Help function. This calls man.
*/
static void help ()
{
int code = execlp ( "man", "man", MANPAGE_PATH, NULL );
if ( code == -1 ) {
fprintf ( stderr, "Failed to execute man: %s\n", strerror ( errno ) );
}
}
/**
* Function bound by 'atexit'.
* Cleanup globally allocated memory.
*/
static void cleanup ()
{
// Cleanup
if ( display != NULL ) {
if ( main_window != None ) {
release_keyboard ( display );
XFreeGC ( display, gc );
XDestroyWindow ( display, main_window );
XCloseDisplay ( display );
}
}
// Cleanup pid file.
if ( pidfile ) {
unlink ( pidfile );
}
// Cleaning up memory allocated by the Xresources file.
config_xresource_free ();
for ( unsigned int i = 0; i < num_switchers; i++ ) {
// Switcher keystr is free'ed when needed by config system.
if ( switchers[i]->keycfg != NULL ) {
g_free ( switchers[i]->keycfg );
switchers[i]->keycfg = NULL;
}
// only used for script dialog.
if ( switchers[i]->free != NULL ) {
switchers[i]->free ( switchers[i] );
}
}
g_free ( switchers );
}
/**
* Parse the switcher string, into internal array of type Switcher.
*
* String is split on separator ','
* First the three build-in modi are checked: window, run, ssh
* if that fails, a script-switcher is created.
*/
static void setup_switchers ( void )
{
char *savept = NULL;
// Make a copy, as strtok will modify it.
char *switcher_str = g_strdup ( config.switchers );
// Split token on ','. This modifies switcher_str.
for ( char *token = strtok_r ( switcher_str, ",", &savept );
token != NULL;
token = strtok_r ( NULL, ",", &savept ) ) {
// Resize and add entry.
switchers = (Switcher * *) g_realloc ( switchers,
sizeof ( Switcher* ) * ( num_switchers + 1 ) );
// Window switcher.
if ( strcasecmp ( token, "window" ) == 0 ) {
switchers[num_switchers] = &window_mode;
num_switchers++;
}
// SSh dialog
else if ( strcasecmp ( token, "ssh" ) == 0 ) {
switchers[num_switchers] = &ssh_mode;
num_switchers++;
}
// Run dialog
else if ( strcasecmp ( token, "run" ) == 0 ) {
switchers[num_switchers] = &run_mode;
num_switchers++;
}
// combi dialog
else if ( strcasecmp ( token, "combi" ) == 0 ) {
switchers[num_switchers] = &combi_mode;
num_switchers++;
}
else {
// If not build in, use custom switchers.
Switcher *sw = script_switcher_parse_setup ( token );
if ( sw != NULL ) {
switchers[num_switchers] = sw;
num_switchers++;
}
else{
// Report error, don't continue.
fprintf ( stderr, "Invalid script switcher: %s\n", token );
token = NULL;
}
}
// Keybinding.
}
// Free string that was modified by strtok_r
g_free ( switcher_str );
// We cannot do this in main loop, as we create pointer to string,
// and re-alloc moves that pointer.
for ( unsigned int i = 0; i < num_switchers; i++ ) {
switchers[i]->keycfg = g_strdup_printf ( "key-%s", switchers[i]->name );
config_parser_add_option ( xrm_String,
switchers[i]->keycfg,
(void * *) &( switchers[i]->keystr ) );
}
}
/**
* @param display Pointer to the X connection to use.
* Load configuration.
* Following priority: (current), X, commandline arguments
*/
static inline void load_configuration ( Display *display )
{
// Load in config from X resources.
config_parse_xresource_options ( display );
// Parse command line for settings.
config_parse_cmd_options ( );
}
static inline void load_configuration_dynamic ( Display *display )
{
// Load in config from X resources.
config_parse_xresource_options_dynamic ( display );
config_parse_cmd_options_dynamic ( );
// Sanity check
config_sanity_check ( );
}
/**
* Handle sighup request.
* Currently we just reload the configuration.
*/
static void hup_action_handler ( int num )
{
if ( num == SIGHUP ) {
/**
* Open new connection to X. It seems the XResources do not get updated on the old
* connection.
*/
Display *display = XOpenDisplay ( display_str );
if ( display ) {
load_configuration ( display );
load_configuration_dynamic ( display );
XCloseDisplay ( display );
}
}
}
static void show_error_message ( const char *msg )
{
// Create pid file
create_pid_file ( pidfile );
// Request truecolor visual.
create_visual_and_colormap ( display );
textbox_setup ( &vinfo, map,
config.menu_bg, config.menu_bg_alt, config.menu_fg,
config.menu_hlbg,
config.menu_hlfg );
error_dialog ( msg );
textbox_cleanup ( );
if ( map != None ) {
XFreeColormap ( display, map );
map = None;
}
}
int main ( int argc, char *argv[] )
{
int dmenu_mode = FALSE;
cmd_set_arguments ( argc, argv );
// catch help request
if ( find_arg ( "-h" ) >= 0 || find_arg ( "-help" ) >= 0 ) {
help ();
exit ( EXIT_SUCCESS );
}
// Version
if ( find_arg ( "-v" ) >= 0 || find_arg ( "-version" ) >= 0 ) {
fprintf ( stdout, "Version: "VERSION "\n" );
exit ( EXIT_SUCCESS );
}
// Detect if we are in dmenu mode.
// This has two possible causes.
// 1 the user specifies it on the command-line.
if ( find_arg ( "-dmenu" ) >= 0 ) {
dmenu_mode = TRUE;
}
// 2 the binary that executed is called dmenu (e.g. symlink to rofi)
else{
// Get the base name of the executable called.
char *base_name = g_path_get_basename ( argv[0] );
dmenu_mode = ( strcmp ( base_name, "dmenu" ) == 0 );
// Free the basename for dmenu detection.
g_free ( base_name );
}
// Get the path to the cache dir.
cache_dir = g_get_user_cache_dir ();
// Create pid file path.
const char *path = g_get_user_runtime_dir ();
if ( path ) {
pidfile = g_build_filename ( path, "rofi.pid", NULL );
}
config_parser_add_option ( xrm_String, "pid", (void * *) &pidfile );
// Register cleanup function.
atexit ( cleanup );
// Get DISPLAY, first env, then argument.
display_str = getenv ( "DISPLAY" );
find_arg_str ( "-display", &display_str );
if ( !( display = XOpenDisplay ( display_str ) ) ) {
fprintf ( stderr, "cannot open display!\n" );
return EXIT_FAILURE;
}
load_configuration ( display );
if ( !dmenu_mode ) {
// setup_switchers
setup_switchers ();
}
else {
// Add dmenu options.
config_parser_add_option ( xrm_Char, "sep", (void * *) &( config.separator ) );
}
// Reload for dynamic part.
load_configuration_dynamic ( display );
// Dump.
if ( find_arg ( "-dump-xresources" ) >= 0 ) {
xresource_dump ();
exit ( EXIT_SUCCESS );
}
// Set up X interaction.
const struct sigaction sigchld_action = {
.sa_handler = catch_exit
};
sigaction ( SIGCHLD, &sigchld_action, NULL );
x11_setup ( display );
char *msg = NULL;
if ( find_arg_str ( "-e", &( msg ) ) ) {
show_error_message ( msg );
exit ( EXIT_SUCCESS );
}
// Dmenu mode.
if ( dmenu_mode == TRUE ) {
// force off sidebar mode:
config.sidebar_mode = FALSE;
int retv = run_dmenu ();
// User canceled the operation.
if ( retv == FALSE ) {
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
// flags to run immediately and exit
char *sname = NULL;
if ( find_arg_str ( "-show", &sname ) == TRUE ) {
int index = switcher_get ( sname );
if ( index >= 0 ) {
run_switcher ( FALSE, index );
}
else {
fprintf ( stderr, "The %s switcher has not been enabled\n", sname );
}
}
else{
// Daemon mode, Listen to key presses..
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( switchers[i]->keystr != NULL ) {
x11_parse_key ( switchers[i]->keystr, &( switchers[i]->modmask ), &( switchers[i]->keysym ) );
x11_grab_key ( display, switchers[i]->modmask, switchers[i]->keysym );
}
}
// Setup handler for sighup (reload config)
const struct sigaction hup_action = {
.sa_handler = hup_action_handler
};
sigaction ( SIGHUP, &hup_action, NULL );
// Application Main loop.
// This listens in the background for any events on the Xserver
// catching global key presses.
for (;; ) {
XEvent ev;
// block and wait for something
XNextEvent ( display, &ev );
// If we get an event that does not belong to a window:
// Ignore it.
if ( ev.xany.window == None ) {
continue;
}
// If keypress, handle it.
if ( ev.type == KeyPress ) {
handle_keypress ( &ev );
}
}
}
return EXIT_SUCCESS;
}
SwitcherMode switcher_run ( char **input, Switcher *sw )
{
char *prompt = g_strdup_printf ( "%s:", sw->name );
int selected_line = 0;
unsigned int cmd_list_length = 0;
char **cmd_list = NULL;
cmd_list = sw->get_data ( &cmd_list_length, sw );
int mretv = menu ( cmd_list, cmd_list_length,
input, prompt,
sw->token_match, sw,
&selected_line,
config.levenshtein_sort,
sw->mgrv,
sw );
SwitcherMode retv = sw->result ( mretv, input, selected_line, sw );
g_free ( prompt );
return retv;
}
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