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rofi/source/rofi.c
Dave Davenport 6f404ddc8e Initial import desktop file runner.
2015-11-03 08:31:38 +01:00

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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 <cairo.h>
#include <cairo-xlib.h>
#define SN_API_NOT_YET_FROZEN
#include <libsn/sn.h>
#include "rofi.h"
#include "helper.h"
#include "textbox.h"
#include "scrollbar.h"
#include "x11-helper.h"
#include "xrmoptions.h"
#include "dialogs/dialogs.h"
SwitcherMode switcher_run ( char **input, Switcher *sw );
typedef enum _MainLoopEvent
{
ML_XEVENT,
ML_TIMEOUT
} MainLoopEvent;
typedef struct _Mode
{
Switcher *sw;
textbox *tb;
} Mode;
// Pidfile.
extern Atom netatoms[NUM_NETATOMS];
char *pidfile = NULL;
const char *cache_dir = NULL;
SnDisplay *sndisplay = NULL;
SnLauncheeContext *sncontext = NULL;
Display *display = NULL;
char *display_str = NULL;
Window main_window = None;
Colormap map = None;
unsigned int normal_window_mode = FALSE;
// Array of switchers.
Mode *switchers = NULL;
unsigned int num_switchers = 0;
// Current selected switcher.
unsigned int curr_switcher = 0;
XVisualInfo vinfo;
cairo_surface_t *surface = NULL;
cairo_t *draw = NULL;
XIM xim;
XIC xic;
/**
* @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].sw->name, name ) == 0 ) {
return i;
}
}
return -1;
}
/**
* @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 = { .tv_usec = 200000, .tv_sec = 0 };
fd_set in_fds;
// Create a File Description Set containing x11_fd
FD_ZERO ( &in_fds );
FD_SET ( x11_fd, &in_fds );
// Wait for X Event or a Timer
if ( select ( x11_fd + 1, &in_fds, 0, 0, &tv ) == 0 ) {
return ML_TIMEOUT;
}
return ML_XEVENT;
}
/**
* Levenshtein Sorting.
*/
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];
}
#define MIN3( a, b, c ) ( ( a ) < ( b ) ? ( ( a ) < ( c ) ? ( a ) : ( c ) ) : ( ( b ) < ( c ) ? ( b ) : ( c ) ) )
static int levenshtein ( char *s1, char *s2 )
{
unsigned int x, y, lastdiag, olddiag;
size_t s1len = strlen ( s1 );
size_t s2len = strlen ( s2 );
unsigned int column[s1len + 1];
for ( y = 1; y <= s1len; y++ ) {
column[y] = y;
}
for ( x = 1; x <= s2len; x++ ) {
column[0] = x;
for ( y = 1, lastdiag = x - 1; y <= s1len; y++ ) {
olddiag = column[y];
column[y] = MIN3 ( column[y] + 1, column[y - 1] + 1, lastdiag + ( s1[y - 1] == s2[x - 1] ? 0 : 1 ) );
lastdiag = olddiag;
}
}
return column[s1len];
}
// State of the menu.
typedef struct MenuState
{
Switcher *sw;
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;
int top_offset;
// Update/Refilter list.
int update;
int refilter;
int rchanged;
int cur_page;
// Entries
textbox *text;
textbox *prompt_tb;
textbox *message_tb;
textbox *case_indicator;
textbox **boxes;
scrollbar *scrollbar;
int *distance;
unsigned 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 skip_absorb;
// Return state
unsigned int *selected_line;
MenuReturn retv;
char **lines;
int *lines_not_ascii;
int line_height;
unsigned int border;
cairo_surface_t *bg;
workarea mon;
}MenuState;
static Window create_window ( Display *display )
{
XSetWindowAttributes attr;
attr.colormap = map;
attr.border_pixel = 0;
attr.background_pixel = 0;
Window box = XCreateWindow ( display, DefaultRootWindow ( display ), 0, 0, 200, 100, 0, vinfo.depth, InputOutput,
vinfo.visual, CWColormap | CWBorderPixel | CWBackPixel, &attr );
XSelectInput (
display,
box,
KeyReleaseMask | KeyPressMask | ExposureMask | ButtonPressMask | StructureNotifyMask | FocusChangeMask |
Button1MotionMask );
surface = cairo_xlib_surface_create ( display, box, vinfo.visual, 200, 100 );
// Create a drawable.
draw = cairo_create ( surface );
cairo_set_operator ( draw, CAIRO_OPERATOR_SOURCE );
// // make it an unmanaged window
if ( !normal_window_mode && !config.fullscreen ) {
window_set_atom_prop ( display, box, netatoms[_NET_WM_STATE], &netatoms[_NET_WM_STATE_ABOVE], 1 );
XSetWindowAttributes sattr = { .override_redirect = True };
XChangeWindowAttributes ( display, box, CWOverrideRedirect, &sattr );
}
else{
window_set_atom_prop ( display, box, netatoms[_NET_WM_WINDOW_TYPE], &netatoms[_NET_WM_WINDOW_TYPE_NORMAL], 1 );
}
if ( config.fullscreen ) {
Atom atoms[] = {
netatoms[_NET_WM_STATE_FULLSCREEN],
netatoms[_NET_WM_STATE_ABOVE]
};
window_set_atom_prop ( display, box, netatoms[_NET_WM_STATE], atoms, sizeof ( atoms ) / sizeof ( Atom ) );
}
xim = XOpenIM ( display, NULL, NULL, NULL );
xic = XCreateIC ( xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, XNClientWindow,
box, XNFocusWindow, box, NULL );
// Set the WM_NAME
XStoreName ( display, box, "rofi" );
x11_set_window_opacity ( display, box, config.window_opacity );
return box;
}
/**
* @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 );
scrollbar_free ( state->scrollbar );
if ( state->bg ) {
cairo_surface_destroy ( state->bg );
state->bg = NULL;
}
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 );
g_free ( state->lines_not_ascii );
}
/**
* @param state the state of the View.
* @param mon the work area.
*
* Calculates the window poslition
*/
static void calculate_window_position ( MenuState *state )
{
// Default location is center.
state->y = state->mon.y + ( state->mon.h - state->h ) / 2;
state->x = state->mon.x + ( state->mon.w - state->w ) / 2;
// Determine window location
switch ( config.location )
{
case WL_NORTH_WEST:
state->x = state->mon.x;
case WL_NORTH:
state->y = state->mon.y;
break;
case WL_NORTH_EAST:
state->y = state->mon.y;
case WL_EAST:
state->x = state->mon.x + state->mon.w - state->w;
break;
case WL_EAST_SOUTH:
state->x = state->mon.x + state->mon.w - state->w;
case WL_SOUTH:
state->y = state->mon.y + state->mon.h - state->h;
break;
case WL_SOUTH_WEST:
state->y = state->mon.y + state->mon.h - state->h;
case WL_WEST:
state->x = state->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.
*
* 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 ) ) );
// Always have at least one row.
state->max_rows = MAX ( 1, state->max_rows );
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 * state->border + 4; // 4 = 2*SIDE_MARGIN
}
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;
}
if ( state->columns > 0 ) {
state->element_width = state->w - ( 2 * ( state->border ) );
// Divide by the # columns
state->element_width = ( state->element_width - ( state->columns - 1 ) * config.line_margin ) / state->columns;
}
}
/**
* Nav helper functions, to avoid duplicate code.
*/
/**
* @param state The current MenuState
*
* Move the selection one page down.
* - No wrap around.
* - Clip at top/bottom
*/
inline static void menu_nav_page_next ( MenuState *state )
{
state->selected += ( state->max_elements );
if ( state->selected >= state->filtered_lines ) {
state->selected = state->filtered_lines - 1;
}
state->update = TRUE;
}
/**
* @param state The current MenuState
*
* Move the selection one page up.
* - No wrap around.
* - Clip at top/bottom
*/
inline static void menu_nav_page_prev ( MenuState * state )
{
if ( state->selected < state->max_elements ) {
state->selected = 0;
}
else{
state->selected -= ( state->max_elements );
}
state->update = TRUE;
}
/**
* @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 state The current MenuState
*
* Move the selection to first row.
*/
inline static void menu_nav_first ( MenuState * state )
{
state->selected = 0;
state->update = TRUE;
}
/**
* @param state The current MenuState
*
* Move the selection to last row.
*/
inline static void menu_nav_last ( MenuState * state )
{
state->selected = state->filtered_lines - 1;
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].sw->keystr != NULL ) {
if ( ( modstate_filtered == switchers[i].sw->modmask ) &&
switchers[i].sw->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 || abe_test_action ( CANCEL, modstate, key ) ) {
state->retv = MENU_CANCEL;
state->quit = TRUE;
}
// Up, Ctrl-p or Shift-Tab
else if ( abe_test_action ( ROW_UP, modstate, key ) ) {
menu_nav_up ( state );
}
else if ( abe_test_action ( ROW_TAB, modstate, key ) ) {
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{
menu_nav_down ( state );
}
}
// Down, Ctrl-n
else if ( abe_test_action ( ROW_DOWN, modstate, key ) ) {
menu_nav_down ( state );
}
else if ( abe_test_action ( ROW_LEFT, modstate, key ) ) {
menu_nav_left ( state );
}
else if ( abe_test_action ( ROW_RIGHT, modstate, key ) ) {
menu_nav_right ( state );
}
else if ( abe_test_action ( PAGE_PREV, modstate, key ) ) {
menu_nav_page_prev ( state );
}
else if ( abe_test_action ( PAGE_NEXT, modstate, key ) ) {
menu_nav_page_next ( state );
}
else if ( abe_test_action ( ROW_FIRST, modstate, key ) ) {
menu_nav_first ( state );
}
else if ( abe_test_action ( ROW_LAST, modstate, key ) ) {
menu_nav_last ( state );
}
else if ( abe_test_action ( ROW_SELECT, modstate, key ) ) {
// 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 int intersect ( const textbox *tb, int x, int y )
{
if ( x >= ( tb->x ) && x < ( tb->x + tb->w ) ) {
if ( y >= ( tb->y ) && y < ( tb->y + tb->h ) ) {
return TRUE;
}
}
return FALSE;
}
static int sb_intersect ( const scrollbar *tb, int x, int y )
{
if ( x >= ( tb->x ) && x < ( tb->x + tb->w ) ) {
if ( y >= ( tb->y ) && y < ( tb->y + tb->h ) ) {
return TRUE;
}
}
return FALSE;
}
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;
}
else {
if ( state->scrollbar && sb_intersect ( state->scrollbar, xbe->x, xbe->y ) ) {
state->selected = scrollbar_clicked ( state->scrollbar, xbe->y );
state->update = TRUE;
return;
}
for ( unsigned int i = 0; config.sidebar_mode == TRUE && i < num_switchers; i++ ) {
if ( intersect ( switchers[i].tb, xbe->x, xbe->y ) ) {
*( state->selected_line ) = 0;
state->retv = MENU_QUICK_SWITCH | ( i & MENU_LOWER_MASK );
state->quit = TRUE;
state->skip_absorb = TRUE;
return;
}
}
for ( unsigned int i = 0; i < state->max_elements; i++ ) {
if ( intersect ( state->boxes[i], xbe->x, xbe->y ) ) {
// 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->skip_absorb = TRUE;
}
state->last_button_press = xbe->time;
break;
}
}
}
}
static void menu_refilter ( MenuState *state )
{
if ( strlen ( state->text->text ) > 0 ) {
unsigned int j = 0;
char **tokens = tokenize ( state->text->text, config.case_sensitive );
// input changed
for ( unsigned int i = 0; i < state->num_lines; i++ ) {
int match = state->sw->token_match ( tokens, state->lines[i], state->lines_not_ascii[i], config.case_sensitive, i, state->sw );
// If each token was matched, add it to list.
if ( match ) {
state->line_map[j] = i;
if ( config.levenshtein_sort ) {
state->distance[i] = levenshtein ( state->text->text, state->lines[i] );
}
j++;
}
}
if ( config.levenshtein_sort ) {
g_qsort_with_data ( 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;
}
scrollbar_set_max_value ( state->scrollbar, state->filtered_lines );
state->refilter = FALSE;
state->rchanged = TRUE;
}
static void menu_draw ( MenuState *state, cairo_t *d )
{
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;
}
// Set the position
scrollbar_set_handle ( state->scrollbar, page * state->max_elements );
}
// 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 );
// Update the handle length.
scrollbar_set_handle_length ( state->scrollbar, columns * state->max_rows );
scrollbar_draw ( state->scrollbar, d );
// Element width.
unsigned int element_width = state->w - ( 2 * ( state->border ) );
if ( state->scrollbar != NULL ) {
element_width -= state->scrollbar->w;
}
if ( columns > 0 ) {
element_width = ( element_width - ( columns - 1 ) * config.line_margin ) / columns;
}
int element_height = state->line_height * config.element_height;
int y_offset = state->top_offset;
int x_offset = state->border;
// Calculate number of visible rows.
unsigned int max_elements = MIN ( a_lines, state->max_rows * columns );
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 + config.line_margin );
unsigned int ey = ( ( i ) % state->max_rows ) * ( element_height + config.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->sw->mgrv ( state->line_map[i + offset], state->sw, &fstate );
TextBoxFontType tbft = fstate | ( ( i + offset ) == state->selected ? HIGHLIGHT : type );
textbox_font ( state->boxes[i], tbft );
textbox_text ( state->boxes[i], text );
}
textbox_draw ( state->boxes[i], d );
}
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->sw->mgrv ( state->line_map[i + offset], state->sw, &fstate );
TextBoxFontType tbft = fstate | ( ( i + offset ) == state->selected ? HIGHLIGHT : type );
textbox_font ( state->boxes[i], tbft );
textbox_draw ( state->boxes[i], d );
}
}
}
static void menu_update ( MenuState *state )
{
cairo_surface_t *surf = cairo_image_surface_create ( get_format (), state->w, state->h );
cairo_t *d = cairo_create ( surf );
cairo_set_operator ( d, CAIRO_OPERATOR_SOURCE );
if ( config.fake_transparency ) {
if ( state->bg != NULL ) {
cairo_set_source_surface ( d, state->bg,
-(double) ( state->x - state->mon.x ),
-(double) ( state->y - state->mon.y ) );
cairo_paint ( d );
cairo_set_operator ( d, CAIRO_OPERATOR_OVER );
color_background ( display, d );
cairo_paint ( d );
}
}
else {
// Paint the background.
color_background ( display, d );
cairo_paint ( d );
}
color_border ( display, d );
if ( config.menu_bw > 0 ) {
cairo_save ( d );
cairo_set_line_width ( d, config.menu_bw );
cairo_rectangle ( d,
config.menu_bw / 2.0,
config.menu_bw / 2.0,
state->w - config.menu_bw,
state->h - config.menu_bw );
cairo_stroke ( d );
cairo_restore ( d );
}
// Always paint as overlay over the background.
cairo_set_operator ( d, CAIRO_OPERATOR_OVER );
if ( state->max_elements > 0 ) {
menu_draw ( state, d );
}
if ( state->prompt_tb ) {
textbox_draw ( state->prompt_tb, d );
}
if ( state->text ) {
textbox_draw ( state->text, d );
}
if ( state->case_indicator ) {
textbox_draw ( state->case_indicator, d );
}
if ( state->message_tb ) {
textbox_draw ( state->message_tb, d );
}
color_separator ( display, d );
if ( strcmp ( config.separator_style, "none" ) ) {
if ( strcmp ( config.separator_style, "dash" ) == 0 ) {
const double dashes[1] = { 4 };
cairo_set_dash ( d, dashes, 1, 0.0 );
}
cairo_move_to ( d, state->border, state->line_height + ( state->border ) * 1 + config.line_margin + 1 );
cairo_line_to ( d, state->w - state->border, state->line_height + ( state->border ) * 1 + config.line_margin + 1 );
cairo_stroke ( d );
if ( state->message_tb ) {
cairo_move_to ( d, state->border, state->top_offset - ( config.line_margin ) - 1 );
cairo_line_to ( d, state->w - state->border, state->top_offset - ( config.line_margin ) - 1 );
cairo_stroke ( d );
}
if ( config.sidebar_mode == TRUE ) {
cairo_move_to ( d, state->border, state->h - state->line_height - ( state->border ) * 1 - 1 - config.line_margin );
cairo_line_to ( d, state->w - state->border, state->h - state->line_height - ( state->border ) * 1 - 1 - config.line_margin );
cairo_stroke ( d );
}
}
if ( config.sidebar_mode == TRUE ) {
for ( unsigned int j = 0; j < num_switchers; j++ ) {
textbox_draw ( switchers[j].tb, d );
}
}
state->update = FALSE;
// Draw to actual window.
cairo_set_source_surface ( draw, surf, 0, 0 );
cairo_paint ( draw );
// Cleanup
cairo_destroy ( d );
cairo_surface_destroy ( surf );
// Flush the surface.
cairo_surface_flush ( surface );
}
/**
* @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 );
}
}
static void menu_resize ( MenuState *state )
{
unsigned int sbw = config.line_margin + 8;
scrollbar_move ( state->scrollbar, state->w - state->border - sbw, state->top_offset );
if ( config.sidebar_mode == TRUE ) {
int width = ( state->w - ( 2 * ( state->border ) + ( num_switchers - 1 ) * config.line_margin ) ) / num_switchers;
for ( unsigned int j = 0; j < num_switchers; j++ ) {
textbox_moveresize ( switchers[j].tb,
state->border + j * ( width + config.line_margin ), state->h - state->line_height - state->border,
width, state->line_height );
textbox_draw ( switchers[j].tb, draw );
}
}
int entrybox_width = state->w - ( 2 * ( state->border ) ) - textbox_get_width ( state->prompt_tb )
- textbox_get_width ( state->case_indicator );
textbox_moveresize ( state->text, state->text->x, state->text->y, entrybox_width, state->line_height );
textbox_move ( state->case_indicator, state->w - state->border - textbox_get_width ( state->case_indicator ), state->border );
/**
* Resize in Height
*/
{
unsigned int last_length = state->max_elements;
int element_height = state->line_height * config.element_height + config.line_margin;
// Calculated new number of boxes.
int h = ( state->h - state->top_offset - config.padding );
if ( config.sidebar_mode == TRUE ) {
h -= state->line_height + config.line_margin;
}
if ( h < 0 ) {
fprintf ( stderr, "Current padding %u (on each side) does not fit within visible window %u.\n", config.padding, state->h );
h = ( state->h - state->top_offset - state->h / 3 );
if ( config.sidebar_mode == TRUE ) {
h -= state->line_height + config.line_margin;
}
}
state->max_rows = MAX ( 1, ( h / element_height ) );
state->max_elements = state->max_rows * config.menu_columns;
// Free boxes no longer needed.
for ( unsigned int i = state->max_elements; i < last_length; i++ ) {
textbox_free ( state->boxes[i] );
}
// resize array.
state->boxes = g_realloc ( state->boxes, state->max_elements * sizeof ( textbox* ) );
int y_offset = state->top_offset;
int x_offset = state->border;
int rstate = 0;
if ( config.markup_rows ) {
rstate = TB_MARKUP;
}
// Add newly added boxes.
for ( unsigned int i = last_length; i < state->max_elements; i++ ) {
state->boxes[i] = textbox_create ( rstate, x_offset, y_offset,
state->element_width, element_height, NORMAL, "" );
}
scrollbar_resize ( state->scrollbar, -1, ( state->max_rows ) * ( element_height ) - config.line_margin );
}
state->rchanged = TRUE;
state->update = TRUE;
}
MenuReturn menu ( Switcher *sw, char **input, char *prompt, unsigned int *selected_line, unsigned int *next_pos, const char *message )
{
int shift = FALSE;
MenuState state = {
.sw = sw,
.selected_line = selected_line,
.retv = MENU_CANCEL,
.prev_key = 0,
.last_button_press = 0,
.last_offset = 0,
.distance = NULL,
.quit = FALSE,
.skip_absorb = FALSE,
.filtered_lines = 0,
.max_elements = 0,
// We want to filter on the first run.
.refilter = TRUE,
.update = FALSE,
.rchanged = TRUE,
.cur_page = -1,
.top_offset = 0,
.border = config.padding + config.menu_bw
};
// Request the lines to show.
state.lines = sw->get_data ( &( state.num_lines ), sw );
state.lines_not_ascii = g_malloc0_n ( state.num_lines, sizeof ( int ) );
// find out which lines contain non-ascii codepoints, so we can be faster in some cases.
if ( state.lines != NULL ) {
for ( unsigned int line = 0; state.lines[line]; line++ ) {
state.lines_not_ascii[line] = is_not_ascii ( state.lines[line] );
}
}
if ( next_pos ) {
*next_pos = *selected_line;
}
// Try to grab the keyboard as early as possible.
// We grab this using the rootwindow (as dmenu does it).
// this seems to result in the smallest delay for most people.
int has_keyboard = take_keyboard ( display, DefaultRootWindow ( display ) );
if ( !has_keyboard ) {
fprintf ( stderr, "Failed to grab keyboard, even after %d uS.", 500 * 1000 );
// Break off.
return MENU_CANCEL;
}
// 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 );
if ( sncontext != NULL ) {
sn_launchee_context_setup_window ( sncontext, main_window );
}
}
// Get active monitor size.
monitor_active ( display, &( state.mon ) );
if ( config.fake_transparency ) {
Window root = DefaultRootWindow ( display );
int screen = DefaultScreen ( display );
cairo_surface_t *s = cairo_xlib_surface_create ( display,
root,
DefaultVisual ( display, screen ),
DisplayWidth ( display, screen ),
DisplayHeight ( display, screen ) );
state.bg = cairo_image_surface_create ( get_format (), state.mon.w, state.mon.h );
cairo_t *dr = cairo_create ( state.bg );
cairo_set_source_surface ( dr, s, -state.mon.x, -state.mon.y );
cairo_paint ( dr );
cairo_destroy ( dr );
cairo_surface_destroy ( s );
}
// we need this at this point so we can get height.
state.line_height = textbox_get_estimated_char_height ();
state.case_indicator = textbox_create ( TB_AUTOWIDTH, ( state.border ), ( state.border ),
0, state.line_height, NORMAL, "*" );
// Height of a row.
if ( config.menu_lines == 0 ) {
// Autosize it.
int h = state.mon.h - state.border * 2 - config.line_margin;
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, &( state.mon ) );
// Prompt box.
state.prompt_tb = textbox_create ( TB_AUTOWIDTH, ( state.border ), ( state.border ),
0, state.line_height, NORMAL, prompt );
// Entry box
int entrybox_width = state.w - ( 2 * ( state.border ) ) - textbox_get_width ( state.prompt_tb )
- textbox_get_width ( state.case_indicator );
state.text = textbox_create ( TB_EDITABLE,
( state.border ) + textbox_get_width ( state.prompt_tb ), ( state.border ),
entrybox_width, state.line_height, NORMAL, *input );
state.top_offset = state.border * 1 + state.line_height + 2 + config.line_margin * 2;
// Move indicator to end.
textbox_move ( state.case_indicator, state.border + textbox_get_width ( state.prompt_tb ) + entrybox_width, state.border );
if ( config.case_sensitive ) {
textbox_text ( state.case_indicator, "*" );
}
else{
textbox_text ( state.case_indicator, " " );
}
state.message_tb = NULL;
if ( message ) {
state.message_tb = textbox_create ( TB_AUTOHEIGHT | TB_MARKUP | TB_WRAP,
( state.border ), state.top_offset, state.w - ( 2 * ( state.border ) ),
-1, NORMAL, message );
state.top_offset += textbox_get_height ( state.message_tb );
state.top_offset += config.line_margin * 2 + 2;
}
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 = state.top_offset;
int x_offset = state.border;
int rstate = 0;
if ( config.markup_rows ) {
rstate = TB_MARKUP;
}
for ( unsigned int i = 0; i < state.max_elements; i++ ) {
state.boxes[i] = textbox_create ( rstate, x_offset, y_offset,
state.element_width, element_height, NORMAL, "" );
}
if ( !config.hide_scrollbar ) {
unsigned int sbw = config.line_margin + 8;
state.scrollbar = scrollbar_create ( state.w - state.border - sbw, state.top_offset,
sbw, ( state.max_rows - 1 ) * ( element_height + config.line_margin ) + element_height );
}
scrollbar_set_max_value ( state.scrollbar, state.num_lines );
// filtered list
state.line_map = g_malloc0_n ( state.num_lines, sizeof ( unsigned int ) );
if ( config.levenshtein_sort ) {
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.top_offset + ( element_height + config.line_margin ) * ( state.max_rows ) - config.line_margin;
state.h += state.border;
state.h += 0;
// Add entry
if ( config.sidebar_mode == TRUE ) {
state.h += state.line_height + 2 * config.line_margin + 2;
}
// Sidebar mode.
if ( config.menu_lines == 0 ) {
state.h = state.mon.h;
}
// Move the window to the correct x,y position.
calculate_window_position ( &state );
if ( config.sidebar_mode == TRUE ) {
int width = ( state.w - ( 2 * ( state.border ) + ( num_switchers - 1 ) * config.line_margin ) ) / num_switchers;
for ( unsigned int j = 0; j < num_switchers; j++ ) {
switchers[j].tb = textbox_create ( TB_CENTER, state.border + j * ( width + config.line_margin ),
state.h - state.line_height - state.border, width, state.line_height,
( j == curr_switcher ) ? HIGHLIGHT : NORMAL, switchers[j].sw->name );
}
}
// Display it.
XMoveResizeWindow ( display, main_window, state.x, state.y, state.w, state.h );
cairo_xlib_surface_set_size ( surface, state.w, state.h );
XMapRaised ( display, main_window );
// if grabbing keyboard failed, fall through
state.selected = 0;
state.quit = FALSE;
state.update = TRUE;
menu_refilter ( &state );
for ( unsigned int i = 0; ( *( state.selected_line ) ) < UINT32_MAX && !state.selected && i < state.filtered_lines; i++ ) {
if ( state.line_map[i] == *( state.selected_line ) ) {
state.selected = i;
break;
}
}
if ( sncontext != NULL ) {
sn_launchee_context_complete ( sncontext );
}
int x11_fd = ConnectionNumber ( display );
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 ( ( state.refilter && state.num_lines > config.lazy_filter_limit ) ) {
mle = wait_for_xevent_or_timeout ( display, x11_fd );
}
// If not in lazy mode, refilter.
if ( state.num_lines <= config.lazy_filter_limit ) {
if ( state.refilter ) {
menu_refilter ( &state );
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 );
menu_update ( &state );
}
}
if ( mle == ML_TIMEOUT ) {
continue;
}
// Get next event. (might block)
XNextEvent ( display, &ev );
if ( sndisplay != NULL ) {
sn_display_process_event ( sndisplay, &ev );
}
if ( ev.type == KeymapNotify ) {
XRefreshKeyboardMapping ( &ev.xmapping );
}
else if ( ev.type == ConfigureNotify ) {
XConfigureEvent xce = ev.xconfigure;
if ( xce.window == main_window ) {
if ( state.x != (int ) xce.x || state.y != (int) xce.y ) {
state.x = xce.x;
state.y = xce.y;
state.update = TRUE;
}
if ( state.w != (unsigned int) xce.width || state.h != (unsigned int ) xce.height ) {
state.w = xce.width;
state.h = xce.height;
cairo_xlib_surface_set_size ( surface, state.w, state.h );
menu_resize ( &state );
}
}
}
else if ( ev.type == FocusIn ) {
take_keyboard ( display, main_window );
}
else if ( ev.type == FocusOut ) {
release_keyboard ( display );
}
// Handle event.
else if ( ev.type == Expose ) {
while ( XCheckTypedEvent ( display, Expose, &ev ) ) {
;
}
state.update = TRUE;
}
else if ( ev.type == MotionNotify ) {
while ( XCheckTypedEvent ( display, MotionNotify, &ev ) ) {
;
}
XMotionEvent xme = ev.xmotion;
if ( xme.x >= state.scrollbar->x && xme.x < ( state.scrollbar->x + state.scrollbar->w ) ) {
state.selected = scrollbar_clicked ( state.scrollbar, xme.y );
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 ( abe_test_action ( PASTE_PRIMARY, ev.xkey.state, key ) ) {
XConvertSelection ( display, XA_PRIMARY, netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window, CurrentTime );
}
else if ( abe_test_action ( PASTE_SECONDARY, ev.xkey.state, key ) ) {
XConvertSelection ( display, netatoms[CLIPBOARD], netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window,
CurrentTime );
}
else if ( abe_test_action ( MODE_PREVIOUS, ev.xkey.state, key ) ) {
state.retv = MENU_PREVIOUS;
*( state.selected_line ) = 0;
state.quit = TRUE;
break;
}
// Menu navigation.
else if ( abe_test_action ( MODE_NEXT, ev.xkey.state, key ) ) {
state.retv = MENU_NEXT;
*( state.selected_line ) = 0;
state.quit = TRUE;
break;
}
// Toggle case sensitivity.
else if ( abe_test_action ( TOGGLE_CASE_SENSITIVITY, ev.xkey.state, key ) ) {
config.case_sensitive = !config.case_sensitive;
*( state.selected_line ) = 0;
state.refilter = TRUE;
state.update = TRUE;
if ( config.case_sensitive ) {
textbox_text ( state.case_indicator, "*" );
}
else {
textbox_text ( state.case_indicator, " " );
}
}
// Special delete entry command.
else if ( abe_test_action ( DELETE_ENTRY, ev.xkey.state, key ) ) {
if ( state.selected < state.filtered_lines ) {
*( state.selected_line ) = state.line_map[state.selected];
state.retv = MENU_ENTRY_DELETE;
state.quit = TRUE;
break;
}
}
else{
for ( unsigned int a = CUSTOM_1; a <= CUSTOM_19; a++ ) {
if ( abe_test_action ( a, ev.xkey.state, key ) ) {
if ( state.selected < state.filtered_lines ) {
*( state.selected_line ) = state.line_map[state.selected];
}
state.retv = MENU_QUICK_SWITCH | ( ( a - CUSTOM_1 ) & MENU_LOWER_MASK );
state.quit = TRUE;
break;
}
}
// Skip if we detected key before.
if ( state.quit ) {
continue;
}
int rc = textbox_keypress ( state.text, xic, &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 == 1 ) {
state.refilter = TRUE;
state.update = TRUE;
}
else if ( rc == 2 ) {
// redraw.
state.update = TRUE;
}
// Other keys.
else{
// unhandled key
menu_keyboard_navigation ( &state, key, ev.xkey.state );
}
}
} while ( XCheckTypedEvent ( display, KeyPress, &ev ) );
}
}
// Wait for final release?
if ( !state.skip_absorb ) {
XEvent ev;
do {
XNextEvent ( display, &ev );
} while ( ev.type != KeyRelease );
}
// Update input string.
g_free ( *input );
*input = g_strdup ( state.text->text );
if ( next_pos ) {
*( next_pos ) = state.selected + 1;
}
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, int markup )
{
MenuState state = {
.sw = NULL,
.selected_line = NULL,
.retv = MENU_CANCEL,
.prev_key = 0,
.last_button_press = 0,
.last_offset = 0,
.num_lines = 0,
.distance = NULL,
.quit = FALSE,
.skip_absorb = FALSE,
.filtered_lines = 0,
.columns = 0,
.update = TRUE,
.top_offset = 0,
.border = config.padding + config.menu_bw
};
// Try to grab the keyboard as early as possible.
// We grab this using the rootwindow (as dmenu does it).
// this seems to result in the smallest delay for most people.
int has_keyboard = take_keyboard ( display, DefaultRootWindow ( display ) );
if ( !has_keyboard ) {
fprintf ( stderr, "Failed to grab keyboard, even after %d uS.", 500 * 1000 );
return;
}
// Get active monitor size.
monitor_active ( display, &( state.mon ) );
if ( config.fake_transparency ) {
Window root = DefaultRootWindow ( display );
int screen = DefaultScreen ( display );
cairo_surface_t *s = cairo_xlib_surface_create ( display,
root,
DefaultVisual ( display, screen ),
DisplayWidth ( display, screen ),
DisplayHeight ( display, screen ) );
state.bg = cairo_image_surface_create ( get_format (), state.mon.w, state.mon.h );
cairo_t *dr = cairo_create ( state.bg );
cairo_set_source_surface ( dr, s, -state.mon.x, -state.mon.y );
cairo_paint ( dr );
cairo_destroy ( dr );
cairo_surface_destroy ( s );
}
// 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, &( state.mon ) );
state.max_elements = 0;
state.text = textbox_create ( ( TB_AUTOHEIGHT | TB_WRAP ) + ( ( markup ) ? TB_MARKUP : 0 ),
( state.border ), ( state.border ),
( state.w - ( 2 * ( state.border ) ) ), 1, NORMAL, ( msg != NULL ) ? msg : "" );
state.line_height = textbox_get_height ( state.text );
// resize window vertically to suit
state.h = state.line_height + ( state.border ) * 2;
// Move the window to the correct x,y position.
calculate_window_position ( &state );
XMoveResizeWindow ( display, main_window, state.x, state.y, state.w, state.h );
cairo_xlib_surface_set_size ( surface, state.w, state.h );
// Display it.
XMapRaised ( display, main_window );
if ( sncontext != NULL ) {
sn_launchee_context_complete ( sncontext );
}
while ( !state.quit ) {
// Update if requested.
if ( state.update ) {
menu_update ( &state );
}
// Wait for event.
XEvent ev;
XNextEvent ( display, &ev );
if ( sndisplay != NULL ) {
sn_display_process_event ( sndisplay, &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 );
menu_free_state ( &state );
}
/**
* Do needed steps to start showing the gui
*/
static int setup ()
{
// Create pid file
int pfd = create_pid_file ( pidfile );
if ( pfd >= 0 ) {
// Request truecolor visual.
create_visual_and_colormap ( display );
textbox_setup ( display );
}
return pfd;
}
/**
* Teardown the gui.
*/
static void teardown ( int pfd )
{
// Cleanup font setup.
textbox_cleanup ( );
// Release the window.
release_keyboard ( display );
if ( draw ) {
cairo_destroy ( draw );
draw = NULL;
}
if ( surface ) {
cairo_surface_destroy ( surface );
surface = NULL;
}
if ( main_window != None ) {
XUnmapWindow ( display, main_window );
XDestroyWindow ( display, main_window );
main_window = None;
XDestroyIC ( xic );
XCloseIM ( xim );
}
if ( map != None ) {
XFreeColormap ( display, map );
map = None;
}
// Cleanup pid file.
remove_pid_file ( pfd );
}
/**
* Start dmenu mode.
*/
static int run_dmenu ()
{
int ret_state = EXIT_FAILURE;
int pfd = setup ();
if ( pfd < 0 ) {
return ret_state;
}
// Dmenu modi has a return state.
ret_state = dmenu_switcher_dialog ();
teardown ( pfd );
return ret_state;
}
static void run_switcher ( SwitcherMode mode )
{
int pfd = setup ();
if ( pfd < 0 ) {
return;
}
// Otherwise check if requested mode is enabled.
char *input = g_strdup ( config.filter );
for ( unsigned int i = 0; i < num_switchers; i++ ) {
switchers[i].sw->init ( switchers[i].sw );
}
do {
SwitcherMode retv;
curr_switcher = mode;
retv = switcher_run ( &input, switchers[mode].sw );
// 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].sw->destroy ( switchers[i].sw );
}
// cleanup
teardown ( pfd );
}
int show_error_message ( const char *msg, int markup )
{
int pfd = setup ();
if ( pfd < 0 ) {
return EXIT_FAILURE;
}
error_dialog ( msg, markup );
teardown ( pfd );
return 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 ( index );
}
else {
fprintf ( stderr,
"Warning: Unhandled keypress in global keyhandler, keycode = %u mask = %u\n",
ev->xkey.keycode,
ev->xkey.state );
}
}
/**
* Help function.
*/
static void print_main_application_options ( void )
{
int is_term = isatty ( fileno ( stdout ) );
if ( is_term ) {
printf ( "\t"color_bold "-no-config"color_reset " Do not load configuration, use default values.\n" );
printf ( "\t"color_bold "-quiet"color_reset " Suppress information messages.\n" );
printf ( "\t"color_bold "-v,-version"color_reset " Print the version number and exit.\n" );
printf ( "\t"color_bold "-dmenu"color_reset " Start in dmenu mode.\n" );
printf ( "\t"color_bold "-display [string]"color_reset " X server to contact.\n" );
printf ( "\t\t"color_italic "${DISPLAY}"color_reset "\n" );
printf ( "\t"color_bold "-h,-help"color_reset " This help message.\n" );
printf (
"\t"color_bold "-dump-xresources"color_reset
" Dump the current configuration in Xresources format and exit.\n" );
printf (
"\t"color_bold "-e [string]"color_reset " Show a dialog displaying the passed message and exit.\n" );
printf ( "\t"color_bold "-markup"color_reset " Enable pango markup where possible.\n" );
printf (
"\t"color_bold "-normal-window"color_reset
" In dmenu mode, behave as a normal window. (experimental)\n" );
printf (
"\t"color_bold "-show [mode]"color_reset
" Show the mode 'mode' and exit. The mode has to be enabled.\n" );
}
else {
printf ( "\t-no-config Do not load configuration, use default values.\n" );
printf ( "\t-quiet Suppress information messages.\n" );
printf ( "\t-v,-version Print the version number and exit.\n" );
printf ( "\t-dmenu Start in dmenu mode.\n" );
printf ( "\t-display [string] X server to contact.\n" );
printf ( "\t\t${DISPLAY}\n" );
printf ( "\t-h,-help This help message.\n" );
printf ( "\t-dump-xresources Dump the current configuration in Xresources format and exit.\n" );
printf ( "\t-e [string] Show a dialog displaying the passed message and exit.\n" );
printf ( "\t-markup Enable pango markup where possible.\n" );
printf ( "\t-normal-window In dmenu mode, behave as a normal window. (experimental)\n" );
printf ( "\t-show [mode] Show the mode 'mode' and exit. The mode has to be enabled.\n" );
}
}
static void help ( G_GNUC_UNUSED int argc, char **argv )
{
printf ( "%s usage:\n", argv[0] );
printf ( "\t%s [-options ...]\n\n", argv[0] );
printf ( "Command line only options:\n" );
print_main_application_options ();
printf ( "DMENU command line options:\n" );
print_dmenu_options ();
printf ( "Global options:\n" );
print_options ();
printf ( "\n" );
printf ( "For more information see: man rofi\n" );
printf ( "Version: "VERSION "\n" );
printf ( "Bugreports: "PACKAGE_BUGREPORT "\n" );
}
/**
* Function bound by 'atexit'.
* Cleanup globally allocated memory.
*/
static void cleanup ()
{
// Cleanup
if ( display != NULL ) {
if ( main_window != None ) {
// We should never hit this code.
release_keyboard ( display );
XDestroyWindow ( display, main_window );
main_window = None;
XDestroyIC ( xic );
XCloseIM ( xim );
}
if ( sncontext != NULL ) {
sn_launchee_context_unref ( sncontext );
sncontext = NULL;
}
if ( sndisplay != NULL ) {
sn_display_unref ( sndisplay );
sndisplay = NULL;
}
XCloseDisplay ( display );
display = NULL;
}
// 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].sw->keycfg != NULL ) {
g_free ( switchers[i].sw->keycfg );
switchers[i].sw->keycfg = NULL;
}
// only used for script dialog.
if ( switchers[i].sw->free != NULL ) {
switchers[i].sw->free ( switchers[i].sw );
}
}
g_free ( switchers );
// Cleanup the custom keybinding
cleanup_abe ();
}
/**
* 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 = (Mode *) g_realloc ( switchers, sizeof ( Mode ) * ( num_switchers + 1 ) );
switchers[num_switchers].tb = NULL;
// Window switcher.
#ifdef WINDOW_MODE
if ( strcasecmp ( token, "window" ) == 0 ) {
switchers[num_switchers].sw = &window_mode;
num_switchers++;
}
else if ( strcasecmp ( token, "windowcd" ) == 0 ) {
switchers[num_switchers].sw = &window_mode_cd;
num_switchers++;
}
else
#endif // WINDOW_MODE
// SSh dialog
if ( strcasecmp ( token, "ssh" ) == 0 ) {
switchers[num_switchers].sw = &ssh_mode;
num_switchers++;
}
// Run dialog
else if ( strcasecmp ( token, "run" ) == 0 ) {
switchers[num_switchers].sw = &run_mode;
num_switchers++;
}
else if ( strcasecmp ( token, "drun" ) == 0 ) {
switchers[num_switchers].sw = &drun_mode;
num_switchers++;
}
// combi dialog
else if ( strcasecmp ( token, "combi" ) == 0 ) {
switchers[num_switchers].sw = &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 = 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].sw->keycfg = g_strdup_printf ( "key-%s", switchers[i].sw->name );
config_parser_add_option ( xrm_String, switchers[i].sw->keycfg, (void * *) &( switchers[i].sw->keystr ), "Keybinding" );
}
}
/**
* @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 ( );
}
static void release_global_keybindings ()
{
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( switchers[i].sw->keystr != NULL ) {
// No need to parse key, this should be done when grabbing.
if ( switchers[i].sw->keysym != NoSymbol ) {
x11_ungrab_key ( display, switchers[i].sw->modmask, switchers[i].sw->keysym );
}
}
}
}
static int grab_global_keybindings ()
{
int key_bound = FALSE;
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( switchers[i].sw->keystr != NULL ) {
x11_parse_key ( switchers[i].sw->keystr, &( switchers[i].sw->modmask ), &( switchers[i].sw->keysym ) );
if ( switchers[i].sw->keysym != NoSymbol ) {
x11_grab_key ( display, switchers[i].sw->modmask, switchers[i].sw->keysym );
key_bound = TRUE;
}
}
}
return key_bound;
}
static void print_global_keybindings ()
{
fprintf ( stdout, "listening to the following keys:\n" );
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( switchers[i].sw->keystr != NULL ) {
fprintf ( stdout, "\t* "color_bold "%s"color_reset " on %s\n", switchers[i].sw->name, switchers[i].sw->keystr );
}
else {
fprintf ( stdout, "\t* "color_bold "%s"color_reset " on <unspecified>\n", switchers[i].sw->name );
}
}
}
static void reload_configuration ()
{
if ( find_arg ( "-no-config" ) < 0 ) {
// Reset the color cache
color_cache_reset ();
// We need to open a new connection to X11, otherwise we get old
// configuration
Display *temp_display = XOpenDisplay ( display_str );
if ( temp_display ) {
load_configuration ( temp_display );
load_configuration_dynamic ( temp_display );
// Sanity check
config_sanity_check ( temp_display );
parse_keys_abe ();
XCloseDisplay ( temp_display );
}
else {
fprintf ( stderr, "Failed to get a new connection to the X11 server. No point in continuing.\n" );
abort ();
}
}
}
/**
* Separate thread that handles signals being send to rofi.
* Currently it listens for three signals:
* * HUP: reload the configuration.
* * INT: Quit the program.
* * USR1: Dump the current configuration to stdout.
*
* These messages are relayed to the main thread via a pipe, the write side of the pipe is passed
* as argument to this thread.
* When receiving a sig-int the thread quits.
*/
static gpointer rofi_signal_handler_process ( gpointer arg )
{
int pfd = *( (int *) arg );
// Create same mask again.
sigset_t set;
sigemptyset ( &set );
sigaddset ( &set, SIGHUP );
sigaddset ( &set, SIGINT );
sigaddset ( &set, SIGUSR1 );
// loop forever.
while ( 1 ) {
siginfo_t info;
int sig = sigwaitinfo ( &set, &info );
if ( sig < 0 ) {
perror ( "sigwaitinfo failed, lets restart" );
}
else {
// Send message to main thread.
if ( sig == SIGHUP ) {
ssize_t t = write ( pfd, "c", 1 );
if ( t < 0 ) {
fprintf ( stderr, "Failed to send signal to main thread.\n" );
}
}
if ( sig == SIGUSR1 ) {
ssize_t t = write ( pfd, "i", 1 );
if ( t < 0 ) {
fprintf ( stderr, "Failed to send signal to main thread.\n" );
}
}
else if ( sig == SIGINT ) {
ssize_t t = write ( pfd, "q", 1 );
if ( t < 0 ) {
fprintf ( stderr, "Failed to send signal to main thread.\n" );
}
// Close my end and exit.
g_thread_exit ( NULL );
}
}
}
return NULL;
}
/**
* Process X11 events in the main-loop (gui-thread) of the application.
*/
static void main_loop_x11_event_handler ( void )
{
// X11 produced an event. Consume them.
while ( XPending ( display ) ) {
XEvent ev;
// Read event, we know this won't block as we checked with XPending.
XNextEvent ( display, &ev );
if ( sndisplay != NULL ) {
sn_display_process_event ( sndisplay, &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 );
}
}
}
/**
* Process signals in the main-loop (gui-thread) of the application.
*
* returns TRUE when mainloop should be stopped.
*/
static int main_loop_signal_handler ( char command, int quiet )
{
if ( command == 'c' ) {
if ( !quiet ) {
fprintf ( stdout, "Reload configuration\n" );
}
// Release the keybindings.
release_global_keybindings ();
// Reload config
reload_configuration ();
// Grab the possibly new keybindings.
grab_global_keybindings ();
if ( !quiet ) {
print_global_keybindings ();
}
// We need to flush, otherwise the first key presses are not caught.
XFlush ( display );
}
// Got message to quit.
else if ( command == 'q' ) {
// Break out of loop.
return TRUE;
}
// Got message to print info
else if ( command == 'i' ) {
xresource_dump ();
}
return FALSE;
}
SwitcherMode switcher_run ( char **input, Switcher *sw )
{
char *prompt = g_strdup_printf ( "%s:", sw->name );
unsigned int selected_line = UINT32_MAX;
int mretv = menu ( sw, input, prompt, &selected_line, NULL, NULL );
g_free ( prompt );
return sw->result ( mretv, input, selected_line, sw );
}
/**
* Setup signal handling.
* Block all the signals, start a signal processor thread to handle these events.
*/
static GThread *setup_signal_thread ( int *fd )
{
// Block all HUP,INT,USR1 signals.
// In this and other child (they inherit mask)
sigset_t set;
sigemptyset ( &set );
sigaddset ( &set, SIGHUP );
sigaddset ( &set, SIGINT );
sigaddset ( &set, SIGUSR1 );
sigprocmask ( SIG_BLOCK, &set, NULL );
// Create signal handler process.
// This will use sigwaitinfo to read signals and forward them back to the main thread again.
return g_thread_new ( "signal_process", rofi_signal_handler_process, (void *) fd );
}
static int error_trap_depth = 0;
static void error_trap_push ( G_GNUC_UNUSED SnDisplay *display, G_GNUC_UNUSED Display *xdisplay )
{
++error_trap_depth;
}
static void error_trap_pop ( G_GNUC_UNUSED SnDisplay *display, Display *xdisplay )
{
if ( error_trap_depth == 0 ) {
fprintf ( stderr, "Error trap underflow!\n" );
exit ( 1 );
}
XSync ( xdisplay, False ); /* get all errors out of the queue */
--error_trap_depth;
}
int main ( int argc, char *argv[] )
{
cmd_set_arguments ( argc, argv );
// Quiet flag
int quiet = ( find_arg ( "-quiet" ) >= 0 );
// 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.
int dmenu_mode = FALSE;
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, "Pidfile location" );
// Register cleanup function.
atexit ( cleanup );
// Get DISPLAY, first env, then argument.
display_str = getenv ( "DISPLAY" );
find_arg_str ( "-display", &display_str );
if ( !XSupportsLocale () ) {
fprintf ( stderr, "X11 does not support locales\n" );
return 11;
}
if ( XSetLocaleModifiers ( "@im=none" ) == NULL ) {
fprintf ( stderr, "Failed to set locale modifier.\n" );
return 10;
}
if ( !( display = XOpenDisplay ( display_str ) ) ) {
fprintf ( stderr, "cannot open display!\n" );
return EXIT_FAILURE;
}
// startup not.
sndisplay = sn_display_new ( display, error_trap_push, error_trap_pop );
if ( sndisplay != NULL ) {
sncontext = sn_launchee_context_new_from_environment ( sndisplay, DefaultScreen ( display ) );
}
// Setup keybinding
setup_abe ();
if ( find_arg ( "-no-config" ) < 0 ) {
load_configuration ( display );
}
if ( !dmenu_mode ) {
// setup_switchers
setup_switchers ();
}
else {
// Add dmenu options.
config_parser_add_option ( xrm_Char, "sep", (void * *) &( config.separator ),
"Element separator" );
}
if ( find_arg ( "-no-config" ) < 0 ) {
// Reload for dynamic part.
load_configuration_dynamic ( display );
}
x11_setup ( display );
// Sanity check
config_sanity_check ( display );
// Dump.
// catch help request
if ( find_arg ( "-h" ) >= 0 || find_arg ( "-help" ) >= 0 || find_arg ( "--help" ) >= 0 ) {
help ( argc, argv );
exit ( EXIT_SUCCESS );
}
if ( find_arg ( "-dump-xresources" ) >= 0 ) {
xresource_dump ();
exit ( EXIT_SUCCESS );
}
// Parse the keybindings.
parse_keys_abe ();
char *msg = NULL;
if ( find_arg_str ( "-e", &( msg ) ) ) {
int markup = FALSE;
if ( find_arg ( "-markup" ) >= 0 ) {
markup = TRUE;
}
return show_error_message ( msg, markup );
}
// Dmenu mode.
if ( dmenu_mode == TRUE ) {
normal_window_mode = find_arg ( "-normal-window" ) >= 0;
// force off sidebar mode:
config.sidebar_mode = FALSE;
int retv = run_dmenu ();
// User canceled the operation.
if ( retv == FALSE ) {
return EXIT_FAILURE;
}
else if ( retv >= 10 ) {
return retv;
}
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 ( index );
}
else {
fprintf ( stderr, "The %s switcher has not been enabled\n", sname );
}
}
else{
// Daemon mode, Listen to key presses..
if ( !grab_global_keybindings () ) {
fprintf ( stderr,
"Rofi was launched in daemon mode, but no key-binding was specified.\n" );
fprintf ( stderr, "Please check the manpage on how to specify a key-binding.\n" );
fprintf ( stderr, "The following modi are enabled and keys can be specified:\n" );
for ( unsigned int i = 0; i < num_switchers; i++ ) {
fprintf ( stderr, "\t* "color_bold "%s"color_reset ": -key-%s <key>\n", switchers[i].sw->name, switchers[i].sw->name );
}
return EXIT_FAILURE;
}
if ( !quiet ) {
fprintf ( stdout, "Rofi is launched in daemon mode.\n" );
print_global_keybindings ();
}
// Create a pipe to communicate between signal thread an main thread.
int pfds[2];
if ( pipe ( pfds ) != 0 ) {
char * msg = g_strdup_printf ( "Failed to start rofi: '<i>%s</i>'", strerror ( errno ) );
show_error_message ( msg, TRUE );
g_free ( msg );
exit ( EXIT_FAILURE );
}
GThread *pid_signal_proc = setup_signal_thread ( &( pfds[1] ) );
// done starting deamon.
if ( sncontext != NULL ) {
sn_launchee_context_complete ( sncontext );
}
// Application Main loop.
// This listens in the background for any events on the Xserver
// catching global key presses.
// It also listens from messages from the signal process.
XSelectInput ( display, DefaultRootWindow ( display ), KeyPressMask );
XFlush ( display );
int x11_fd = ConnectionNumber ( display );
for (;; ) {
fd_set in_fds;
// Create a File Description Set containing x11_fd, and signal pipe
FD_ZERO ( &in_fds );
FD_SET ( x11_fd, &in_fds );
FD_SET ( pfds[0], &in_fds );
// Wait for X Event or a message on signal pipe
if ( select ( MAX ( x11_fd, pfds[0] ) + 1, &in_fds, 0, 0, NULL ) >= 0 ) {
// X11
if ( FD_ISSET ( x11_fd, &in_fds ) ) {
main_loop_x11_event_handler ();
}
// Signal Pipe
if ( FD_ISSET ( pfds[0], &in_fds ) ) {
// The signal thread send us a message. Process it.
char c;
ssize_t r = read ( pfds[0], &c, 1 );
if ( r < 0 ) {
fprintf ( stderr, "Failed to read data from signal thread: %s\n", strerror ( errno ) );
}
// Process the signal in the main_loop.
else if ( main_loop_signal_handler ( c, quiet ) ) {
break;
}
}
}
}
release_global_keybindings ();
// Join the signal process thread. (at this point it should have exited).
// this also unrefs (de-allocs) the GThread object.
g_thread_join ( pid_signal_proc );
// Close pipe
close ( pfds[0] );
close ( pfds[1] );
if ( !quiet ) {
fprintf ( stdout, "Quit from daemon mode.\n" );
}
}
return EXIT_SUCCESS;
}
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