/* * rofi * * MIT/X11 License * Copyright © 2013-2019 Qball Cow * * 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. * */ /** The log domain of this dialog. */ #define G_LOG_DOMAIN "Dialogs.Window" #include #ifdef WINDOW_MODE #include #include #include #include #include #include #include #include #include #include #include #include #include "xcb-internal.h" #include "xcb.h" #include "rofi.h" #include "settings.h" #include "helper.h" #include "widgets/textbox.h" #include "dialogs/window.h" #include "timings.h" #include "rofi-icon-fetcher.h" #define WINLIST 32 #define CLIENTSTATE 10 #define CLIENTWINDOWTYPE 10 // Fields to match in window mode typedef struct { char *field_name; gboolean enabled; } WinModeField; typedef enum { WIN_MATCH_FIELD_TITLE, WIN_MATCH_FIELD_CLASS, WIN_MATCH_FIELD_ROLE, WIN_MATCH_FIELD_NAME, WIN_MATCH_FIELD_DESKTOP, WIN_MATCH_NUM_FIELDS, } WinModeMatchingFields; static WinModeField matching_window_fields[WIN_MATCH_NUM_FIELDS] = { { .field_name = "title", .enabled = TRUE, }, { .field_name = "class", .enabled = TRUE, }, { .field_name = "role", .enabled = TRUE, }, { .field_name = "name", .enabled = TRUE, }, { .field_name = "desktop", .enabled = TRUE, } }; static gboolean window_matching_fields_parsed = FALSE; // a manageable window typedef struct { xcb_window_t window; xcb_get_window_attributes_reply_t xattr; char *title; char *class; char *name; char *role; int states; xcb_atom_t state[CLIENTSTATE]; int window_types; xcb_atom_t window_type[CLIENTWINDOWTYPE]; int active; int demands; long hint_flags; uint32_t wmdesktop; char *wmdesktopstr; cairo_surface_t *icon; gboolean icon_checked; uint32_t icon_fetch_uid; gboolean thumbnail_checked; } client; // window lists typedef struct { xcb_window_t *array; client **data; int len; } winlist; typedef struct { unsigned int id; winlist *ids; // Current window. unsigned int index; char *cache; unsigned int wmdn_len; unsigned int clf_len; unsigned int name_len; unsigned int title_len; unsigned int role_len; GRegex *window_regex; } ModeModePrivateData; winlist *cache_client = NULL; /** * Create a window list, pre-seeded with WINLIST entries. * * @returns A new window list. */ static winlist* winlist_new () { winlist *l = g_malloc ( sizeof ( winlist ) ); l->len = 0; l->array = g_malloc_n ( WINLIST + 1, sizeof ( xcb_window_t ) ); l->data = g_malloc_n ( WINLIST + 1, sizeof ( client* ) ); return l; } /** * @param l The winlist. * @param w The window to add. * @param d Data pointer. * * Add one entry. If Full, extend with WINLIST entries. * * @returns 0 if failed, 1 is successful. */ static int winlist_append ( winlist *l, xcb_window_t w, client *d ) { if ( l->len > 0 && !( l->len % WINLIST ) ) { l->array = g_realloc ( l->array, sizeof ( xcb_window_t ) * ( l->len + WINLIST + 1 ) ); l->data = g_realloc ( l->data, sizeof ( client* ) * ( l->len + WINLIST + 1 ) ); } // Make clang-check happy. // TODO: make clang-check clear this should never be 0. if ( l->data == NULL || l->array == NULL ) { return 0; } l->data[l->len] = d; l->array[l->len++] = w; return l->len - 1; } static void winlist_empty ( winlist *l ) { while ( l->len > 0 ) { client *c = l->data[--l->len]; if ( c != NULL ) { if ( c->icon ) { cairo_surface_destroy ( c->icon ); } g_free ( c->title ); g_free ( c->class ); g_free ( c->name ); g_free ( c->role ); g_free ( c->wmdesktopstr ); g_free ( c ); } } } /** * @param l The winlist entry * * Free the winlist. */ static void winlist_free ( winlist *l ) { if ( l != NULL ) { winlist_empty ( l ); g_free ( l->array ); g_free ( l->data ); g_free ( l ); } } /** * @param l The winlist. * @param w The window to find. * * Find the window in the list, and return the array entry. * * @returns -1 if failed, index is successful. */ static int winlist_find ( winlist *l, xcb_window_t w ) { // iterate backwards. Theory is: windows most often accessed will be // nearer the end. Testing with kcachegrind seems to support this... int i; for ( i = ( l->len - 1 ); i >= 0; i-- ) { if ( l->array[i] == w ) { return i; } } return -1; } /** * Create empty X11 cache for windows and windows attributes. */ static void x11_cache_create ( void ) { if ( cache_client == NULL ) { cache_client = winlist_new (); } } /** * Free the cache. */ static void x11_cache_free ( void ) { winlist_free ( cache_client ); cache_client = NULL; } /** * @param d Display connection to X server * @param w window * * Get window attributes. * This functions uses caching. * * @returns a XWindowAttributes */ static xcb_get_window_attributes_reply_t * window_get_attributes ( xcb_window_t w ) { xcb_get_window_attributes_cookie_t c = xcb_get_window_attributes ( xcb->connection, w ); xcb_get_window_attributes_reply_t *r = xcb_get_window_attributes_reply ( xcb->connection, c, NULL ); if ( r ) { return r; } return NULL; } // _NET_WM_STATE_* static int client_has_state ( client *c, xcb_atom_t state ) { for ( int i = 0; i < c->states; i++ ) { if ( c->state[i] == state ) { return 1; } } return 0; } static int client_has_window_type ( client *c, xcb_atom_t type ) { for ( int i = 0; i < c->window_types; i++ ) { if ( c->window_type[i] == type ) { return 1; } } return 0; } static client* window_client ( ModeModePrivateData *pd, xcb_window_t win ) { if ( win == XCB_WINDOW_NONE ) { return NULL; } int idx = winlist_find ( cache_client, win ); if ( idx >= 0 ) { return cache_client->data[idx]; } // if this fails, we're up that creek xcb_get_window_attributes_reply_t *attr = window_get_attributes ( win ); if ( !attr ) { return NULL; } client *c = g_malloc0 ( sizeof ( client ) ); c->window = win; // copy xattr so we don't have to care when stuff is freed memmove ( &c->xattr, attr, sizeof ( xcb_get_window_attributes_reply_t ) ); xcb_get_property_cookie_t cky = xcb_ewmh_get_wm_state ( &xcb->ewmh, win ); xcb_ewmh_get_atoms_reply_t states; if ( xcb_ewmh_get_wm_state_reply ( &xcb->ewmh, cky, &states, NULL ) ) { c->states = MIN ( CLIENTSTATE, states.atoms_len ); memcpy ( c->state, states.atoms, MIN ( CLIENTSTATE, states.atoms_len ) * sizeof ( xcb_atom_t ) ); xcb_ewmh_get_atoms_reply_wipe ( &states ); } cky = xcb_ewmh_get_wm_window_type ( &xcb->ewmh, win ); if ( xcb_ewmh_get_wm_window_type_reply ( &xcb->ewmh, cky, &states, NULL ) ) { c->window_types = MIN ( CLIENTWINDOWTYPE, states.atoms_len ); memcpy ( c->window_type, states.atoms, MIN ( CLIENTWINDOWTYPE, states.atoms_len ) * sizeof ( xcb_atom_t ) ); xcb_ewmh_get_atoms_reply_wipe ( &states ); } c->title = window_get_text_prop ( c->window, xcb->ewmh._NET_WM_NAME ); if ( c->title == NULL ) { c->title = window_get_text_prop ( c->window, XCB_ATOM_WM_NAME ); } pd->title_len = MAX ( c->title ? g_utf8_strlen ( c->title, -1 ) : 0, pd->title_len ); c->role = window_get_text_prop ( c->window, netatoms[WM_WINDOW_ROLE] ); pd->role_len = MAX ( c->role ? g_utf8_strlen ( c->role, -1 ) : 0, pd->role_len ); cky = xcb_icccm_get_wm_class ( xcb->connection, c->window ); xcb_icccm_get_wm_class_reply_t wcr; if ( xcb_icccm_get_wm_class_reply ( xcb->connection, cky, &wcr, NULL ) ) { c->class = rofi_latin_to_utf8_strdup ( wcr.class_name, -1 ); c->name = rofi_latin_to_utf8_strdup ( wcr.instance_name, -1 ); pd->name_len = MAX ( c->name ? g_utf8_strlen ( c->name, -1 ) : 0, pd->name_len ); xcb_icccm_get_wm_class_reply_wipe ( &wcr ); } xcb_get_property_cookie_t cc = xcb_icccm_get_wm_hints ( xcb->connection, c->window ); xcb_icccm_wm_hints_t r; if ( xcb_icccm_get_wm_hints_reply ( xcb->connection, cc, &r, NULL ) ) { c->hint_flags = r.flags; } winlist_append ( cache_client, c->window, c ); g_free ( attr ); return c; } static int window_match ( const Mode *sw, rofi_int_matcher **tokens, unsigned int index ) { ModeModePrivateData *rmpd = (ModeModePrivateData *) mode_get_private_data ( sw ); int match = 1; const winlist *ids = ( winlist * ) rmpd->ids; // Want to pull directly out of cache, X calls are not thread safe. int idx = winlist_find ( cache_client, ids->array[index] ); g_assert ( idx >= 0 ); client *c = cache_client->data[idx]; if ( tokens ) { for ( int j = 0; match && tokens != NULL && tokens[j] != NULL; j++ ) { int test = 0; // Dirty hack. Normally helper_token_match does _all_ the matching, // Now we want it to match only one item at the time. // If hack not in place it would not match queries spanning multiple fields. // e.g. when searching 'title element' and 'class element' rofi_int_matcher *ftokens[2] = { tokens[j], NULL }; if ( c->title != NULL && c->title[0] != '\0' && matching_window_fields[WIN_MATCH_FIELD_TITLE].enabled ) { test = helper_token_match ( ftokens, c->title ); } if ( test == tokens[j]->invert && c->class != NULL && c->class[0] != '\0' && matching_window_fields[WIN_MATCH_FIELD_CLASS].enabled ) { test = helper_token_match ( ftokens, c->class ); } if ( test == tokens[j]->invert && c->role != NULL && c->role[0] != '\0' && matching_window_fields[WIN_MATCH_FIELD_ROLE].enabled ) { test = helper_token_match ( ftokens, c->role ); } if ( test == tokens[j]->invert && c->name != NULL && c->name[0] != '\0' && matching_window_fields[WIN_MATCH_FIELD_NAME].enabled ) { test = helper_token_match ( ftokens, c->name ); } if ( test == tokens[j]->invert && c->wmdesktopstr != NULL && c->wmdesktopstr[0] != '\0' && matching_window_fields[WIN_MATCH_FIELD_DESKTOP].enabled ) { test = helper_token_match ( ftokens, c->wmdesktopstr ); } if ( test == 0 ) { match = 0; } } } return match; } static void window_mode_parse_fields () { window_matching_fields_parsed = TRUE; char *savept = NULL; // Make a copy, as strtok will modify it. char *switcher_str = g_strdup ( config.window_match_fields ); const char * const sep = ",#"; // Split token on ','. This modifies switcher_str. for ( unsigned int i = 0; i < WIN_MATCH_NUM_FIELDS; i++ ) { matching_window_fields[i].enabled = FALSE; } for ( char *token = strtok_r ( switcher_str, sep, &savept ); token != NULL; token = strtok_r ( NULL, sep, &savept ) ) { if ( strcmp ( token, "all" ) == 0 ) { for ( unsigned int i = 0; i < WIN_MATCH_NUM_FIELDS; i++ ) { matching_window_fields[i].enabled = TRUE; } break; } else { gboolean matched = FALSE; for ( unsigned int i = 0; i < WIN_MATCH_NUM_FIELDS; i++ ) { const char * field_name = matching_window_fields[i].field_name; if ( strcmp ( token, field_name ) == 0 ) { matching_window_fields[i].enabled = TRUE; matched = TRUE; } } if ( !matched ) { g_warning ( "Invalid window field name :%s", token ); } } } // Free string that was modified by strtok_r g_free ( switcher_str ); } static unsigned int window_mode_get_num_entries ( const Mode *sw ) { const ModeModePrivateData *pd = (const ModeModePrivateData *) mode_get_private_data ( sw ); return pd->ids ? pd->ids->len : 0; } /** * Small helper function to find the right entry in the ewmh reply. * Is there a call for this? */ static const char * _window_name_list_entry ( const char *str, uint32_t length, int entry ) { uint32_t offset = 0; int index = 0; while ( index < entry && offset < length ) { if ( str[offset] == 0 ) { index++; } offset++; } return &str[offset]; } static void _window_mode_load_data ( Mode *sw, unsigned int cd ) { ModeModePrivateData *pd = (ModeModePrivateData *) mode_get_private_data ( sw ); // find window list xcb_window_t curr_win_id; int found = 0; // Create cache x11_cache_create (); xcb_get_property_cookie_t c = xcb_ewmh_get_active_window ( &( xcb->ewmh ), xcb->screen_nbr ); if ( !xcb_ewmh_get_active_window_reply ( &xcb->ewmh, c, &curr_win_id, NULL ) ) { curr_win_id = 0; } // Get the current desktop. unsigned int current_desktop = 0; c = xcb_ewmh_get_current_desktop ( &xcb->ewmh, xcb->screen_nbr ); if ( !xcb_ewmh_get_current_desktop_reply ( &xcb->ewmh, c, ¤t_desktop, NULL ) ) { current_desktop = 0; } c = xcb_ewmh_get_client_list_stacking ( &xcb->ewmh, 0 ); xcb_ewmh_get_windows_reply_t clients = {0,}; if ( xcb_ewmh_get_client_list_stacking_reply ( &xcb->ewmh, c, &clients, NULL ) ) { found = 1; } else { c = xcb_ewmh_get_client_list ( &xcb->ewmh, xcb->screen_nbr ); if ( xcb_ewmh_get_client_list_reply ( &xcb->ewmh, c, &clients, NULL ) ) { found = 1; } } if ( ! found ) { return; } if ( clients.windows_len > 0 ) { int i; // windows we actually display. May be slightly different to _NET_CLIENT_LIST_STACKING // if we happen to have a window destroyed while we're working... pd->ids = winlist_new (); xcb_get_property_cookie_t c = xcb_ewmh_get_desktop_names ( &xcb->ewmh, xcb->screen_nbr ); xcb_ewmh_get_utf8_strings_reply_t names; int has_names = FALSE; if ( xcb_ewmh_get_desktop_names_reply ( &xcb->ewmh, c, &names, NULL ) ) { has_names = TRUE; } // calc widths of fields for ( i = clients.windows_len - 1; i > -1; i-- ) { client *c = window_client ( pd, clients.windows[i] ); if ( ( c != NULL ) && !c->xattr.override_redirect && !client_has_window_type ( c, xcb->ewmh._NET_WM_WINDOW_TYPE_DOCK ) && !client_has_window_type ( c, xcb->ewmh._NET_WM_WINDOW_TYPE_DESKTOP ) && !client_has_state ( c, xcb->ewmh._NET_WM_STATE_SKIP_PAGER ) && !client_has_state ( c, xcb->ewmh._NET_WM_STATE_SKIP_TASKBAR ) ) { pd->clf_len = MAX ( pd->clf_len, ( c->class != NULL ) ? ( g_utf8_strlen ( c->class, -1 ) ) : 0 ); if ( client_has_state ( c, xcb->ewmh._NET_WM_STATE_DEMANDS_ATTENTION ) ) { c->demands = TRUE; } if ( ( c->hint_flags & XCB_ICCCM_WM_HINT_X_URGENCY ) != 0 ) { c->demands = TRUE; } if ( c->window == curr_win_id ) { c->active = TRUE; } // find client's desktop. xcb_get_property_cookie_t cookie; xcb_get_property_reply_t *r; c->wmdesktop = 0xFFFFFFFF; cookie = xcb_get_property ( xcb->connection, 0, c->window, xcb->ewmh._NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 0, 1 ); r = xcb_get_property_reply ( xcb->connection, cookie, NULL ); if ( r ) { if ( r->type == XCB_ATOM_CARDINAL ) { c->wmdesktop = *( (uint32_t *) xcb_get_property_value ( r ) ); } free ( r ); } if ( c->wmdesktop != 0xFFFFFFFF ) { if ( has_names ) { if ( ( current_window_manager & WM_PANGO_WORKSPACE_NAMES ) == WM_PANGO_WORKSPACE_NAMES ) { char *output = NULL; if ( pango_parse_markup ( _window_name_list_entry ( names.strings, names.strings_len, c->wmdesktop ), -1, 0, NULL, &output, NULL, NULL ) ) { c->wmdesktopstr = output; } else { c->wmdesktopstr = g_strdup ( "Invalid name" ); } } else { c->wmdesktopstr = g_strdup ( _window_name_list_entry ( names.strings, names.strings_len, c->wmdesktop ) ); } } else { c->wmdesktopstr = g_strdup_printf ( "%u", (uint32_t) c->wmdesktop ); } } else { c->wmdesktopstr = g_strdup ( "" ); } pd->wmdn_len = MAX ( pd->wmdn_len, g_utf8_strlen ( c->wmdesktopstr, -1 ) ); if ( cd && c->wmdesktop != current_desktop ) { continue; } winlist_append ( pd->ids, c->window, NULL ); } } if ( has_names ) { xcb_ewmh_get_utf8_strings_reply_wipe ( &names ); } } xcb_ewmh_get_windows_reply_wipe ( &clients ); } static int window_mode_init ( Mode *sw ) { if ( mode_get_private_data ( sw ) == NULL ) { ModeModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) ); pd->window_regex = g_regex_new ( "{[-\\w]+(:-?[0-9]+)?}", 0, 0, NULL ); mode_set_private_data ( sw, (void *) pd ); _window_mode_load_data ( sw, FALSE ); if ( !window_matching_fields_parsed ) { window_mode_parse_fields (); } } return TRUE; } static int window_mode_init_cd ( Mode *sw ) { if ( mode_get_private_data ( sw ) == NULL ) { ModeModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) ); pd->window_regex = g_regex_new ( "{[-\\w]+(:-?[0-9]+)?}", 0, 0, NULL ); mode_set_private_data ( sw, (void *) pd ); _window_mode_load_data ( sw, TRUE ); if ( !window_matching_fields_parsed ) { window_mode_parse_fields (); } } return TRUE; } static inline int act_on_window ( xcb_window_t window ) { int retv = TRUE; char **args = NULL; int argc = 0; char window_regex[100]; /* We are probably safe here */ g_snprintf ( window_regex, sizeof window_regex, "%d", window ); helper_parse_setup ( config.window_command, &args, &argc, "{window}", window_regex, (char *) 0 ); GError *error = NULL; g_spawn_async ( NULL, args, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error ); if ( error != NULL ) { char *msg = g_strdup_printf ( "Failed to execute action for window: '%s'\nError: '%s'", window_regex, error->message ); rofi_view_error_dialog ( msg, FALSE ); g_free ( msg ); // print error. g_error_free ( error ); retv = FALSE; } // Free the args list. g_strfreev ( args ); return retv; } static ModeMode window_mode_result ( Mode *sw, int mretv, G_GNUC_UNUSED char **input, unsigned int selected_line ) { ModeModePrivateData *rmpd = (ModeModePrivateData *) mode_get_private_data ( sw ); ModeMode retv = MODE_EXIT; if ( mretv & MENU_NEXT ) { retv = NEXT_DIALOG; } else if ( mretv & MENU_PREVIOUS ) { retv = PREVIOUS_DIALOG; } else if ( ( mretv & MENU_QUICK_SWITCH ) == MENU_QUICK_SWITCH ) { retv = ( mretv & MENU_LOWER_MASK ); } else if ( ( mretv & ( MENU_OK ) ) ) { if ( mretv & MENU_CUSTOM_ACTION ) { act_on_window ( rmpd->ids->array[selected_line] ); } else { rofi_view_hide (); if ( ( current_window_manager & WM_DO_NOT_CHANGE_CURRENT_DESKTOP ) == 0 ) { // Get the desktop of the client to switch to uint32_t wmdesktop = 0; xcb_get_property_cookie_t cookie; xcb_get_property_reply_t *r; // Get the current desktop. unsigned int current_desktop = 0; xcb_get_property_cookie_t c = xcb_ewmh_get_current_desktop ( &xcb->ewmh, xcb->screen_nbr ); if ( !xcb_ewmh_get_current_desktop_reply ( &xcb->ewmh, c, ¤t_desktop, NULL ) ) { current_desktop = 0; } cookie = xcb_get_property ( xcb->connection, 0, rmpd->ids->array[selected_line], xcb->ewmh._NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 0, 1 ); r = xcb_get_property_reply ( xcb->connection, cookie, NULL ); if ( r && r->type == XCB_ATOM_CARDINAL ) { wmdesktop = *( (uint32_t *) xcb_get_property_value ( r ) ); } if ( r && r->type != XCB_ATOM_CARDINAL ) { // Assume the client is on all desktops. wmdesktop = current_desktop; } free ( r ); // If we have to switch the desktop, do if ( wmdesktop != current_desktop ) { xcb_ewmh_request_change_current_desktop ( &xcb->ewmh, xcb->screen_nbr, wmdesktop, XCB_CURRENT_TIME ); } } // Activate the window xcb_ewmh_request_change_active_window ( &xcb->ewmh, xcb->screen_nbr, rmpd->ids->array[selected_line], XCB_EWMH_CLIENT_SOURCE_TYPE_OTHER, XCB_CURRENT_TIME, rofi_view_get_window () ); xcb_flush ( xcb->connection ); } } else if ( ( mretv & ( MENU_ENTRY_DELETE ) ) == MENU_ENTRY_DELETE ) { xcb_ewmh_request_close_window ( &( xcb->ewmh ), xcb->screen_nbr, rmpd->ids->array[selected_line], XCB_CURRENT_TIME, XCB_EWMH_CLIENT_SOURCE_TYPE_OTHER ); xcb_flush ( xcb->connection ); } return retv; } static void window_mode_destroy ( Mode *sw ) { ModeModePrivateData *rmpd = (ModeModePrivateData *) mode_get_private_data ( sw ); if ( rmpd != NULL ) { winlist_free ( rmpd->ids ); x11_cache_free (); g_free ( rmpd->cache ); g_regex_unref ( rmpd->window_regex ); g_free ( rmpd ); mode_set_private_data ( sw, NULL ); } } struct arg { const ModeModePrivateData *pd; client *c; }; static void helper_eval_add_str ( GString *str, const char *input, int l, int max_len ) { // g_utf8 does not work with NULL string. const char *input_nn = input ? input : ""; // Both l and max_len are in characters, not bytes. int nc = g_utf8_strlen ( input_nn, -1 ); int spaces = 0; if ( l == 0 ) { spaces = MAX ( 0, max_len - nc ); g_string_append ( str, input_nn ); } else { if ( nc > l ) { int bl = g_utf8_offset_to_pointer ( input_nn, l ) - input_nn; g_string_append_len ( str, input_nn, bl ); } else { spaces = l - nc; g_string_append ( str, input_nn ); } } while ( spaces-- ) { g_string_append_c ( str, ' ' ); } } static gboolean helper_eval_cb ( const GMatchInfo *info, GString *str, gpointer data ) { struct arg *d = (struct arg *) data; gchar *match; // Get the match match = g_match_info_fetch ( info, 0 ); if ( match != NULL ) { int l = 0; if ( match[2] == ':' ) { l = (int) g_ascii_strtoll ( &match[3], NULL, 10 ); if ( l < 0 && config.menu_width < 0 ) { l = -config.menu_width + l; } if ( l < 0 ) { l = 0; } } if ( match[1] == 'w' ) { helper_eval_add_str ( str, d->c->wmdesktopstr, l, d->pd->wmdn_len ); } else if ( match[1] == 'c' ) { helper_eval_add_str ( str, d->c->class, l, d->pd->clf_len ); } else if ( match[1] == 't' ) { helper_eval_add_str ( str, d->c->title, l, d->pd->title_len ); } else if ( match[1] == 'n' ) { helper_eval_add_str ( str, d->c->name, l, d->pd->name_len ); } else if ( match[1] == 'r' ) { helper_eval_add_str ( str, d->c->role, l, d->pd->role_len ); } g_free ( match ); } return FALSE; } static char * _generate_display_string ( const ModeModePrivateData *pd, client *c ) { struct arg d = { pd, c }; char *res = g_regex_replace_eval ( pd->window_regex, config.window_format, -1, 0, 0, helper_eval_cb, &d, NULL ); return g_strchomp ( res ); } static char *_get_display_value ( const Mode *sw, unsigned int selected_line, int *state, G_GNUC_UNUSED GList **list, int get_entry ) { ModeModePrivateData *rmpd = mode_get_private_data ( sw ); client *c = window_client ( rmpd, rmpd->ids->array[selected_line] ); if ( c == NULL ) { return get_entry ? g_strdup ( "Window has fanished" ) : NULL; } if ( c->demands ) { *state |= URGENT; } if ( c->active ) { *state |= ACTIVE; } return get_entry ? _generate_display_string ( rmpd, c ) : NULL; } /** * Icon code borrowed from https://github.com/olejorgenb/extract-window-icon */ static cairo_user_data_key_t data_key; /** Create a surface object from this image data. * \param width The width of the image. * \param height The height of the image * \param data The image's data in ARGB format, will be copied by this function. */ static cairo_surface_t * draw_surface_from_data ( int width, int height, uint32_t *data ) { unsigned long int len = width * height; unsigned long int i; uint32_t *buffer = g_new0 ( uint32_t, len ); cairo_surface_t *surface; /* Cairo wants premultiplied alpha, meh :( */ for ( i = 0; i < len; i++ ) { uint8_t a = ( data[i] >> 24 ) & 0xff; double alpha = a / 255.0; uint8_t r = ( ( data[i] >> 16 ) & 0xff ) * alpha; uint8_t g = ( ( data[i] >> 8 ) & 0xff ) * alpha; uint8_t b = ( ( data[i] >> 0 ) & 0xff ) * alpha; buffer[i] = ( a << 24 ) | ( r << 16 ) | ( g << 8 ) | b; } surface = cairo_image_surface_create_for_data ( (unsigned char *) buffer, CAIRO_FORMAT_ARGB32, width, height, width * 4 ); /* This makes sure that buffer will be freed */ cairo_surface_set_user_data ( surface, &data_key, buffer, g_free ); return surface; } static cairo_surface_t * ewmh_window_icon_from_reply ( xcb_get_property_reply_t *r, uint32_t preferred_size ) { uint32_t *data, *end, *found_data = 0; uint32_t found_size = 0; if ( !r || r->type != XCB_ATOM_CARDINAL || r->format != 32 || r->length < 2 ) { return 0; } data = (uint32_t *) xcb_get_property_value ( r ); if ( !data ) { return 0; } end = data + r->length; /* Goes over the icon data and picks the icon that best matches the size preference. * In case the size match is not exact, picks the closest bigger size if present, * closest smaller size otherwise. */ while ( data + 1 < end ) { /* check whether the data size specified by width and height fits into the array we got */ uint64_t data_size = (uint64_t) data[0] * data[1]; if ( data_size > (uint64_t) ( end - data - 2 ) ) { break; } /* use the greater of the two dimensions to match against the preferred size */ uint32_t size = MAX ( data[0], data[1] ); /* pick the icon if it's a better match than the one we already have */ gboolean found_icon_too_small = found_size < preferred_size; gboolean found_icon_too_large = found_size > preferred_size; gboolean icon_empty = data[0] == 0 || data[1] == 0; gboolean better_because_bigger = found_icon_too_small && size > found_size; gboolean better_because_smaller = found_icon_too_large && size >= preferred_size && size < found_size; if ( !icon_empty && ( better_because_bigger || better_because_smaller || found_size == 0 ) ) { found_data = data; found_size = size; } data += data_size + 2; } if ( !found_data ) { return 0; } return draw_surface_from_data ( found_data[0], found_data[1], found_data + 2 ); } /** Get NET_WM_ICON. */ static cairo_surface_t * get_net_wm_icon ( xcb_window_t xid, uint32_t preferred_size ) { xcb_get_property_cookie_t cookie = xcb_get_property_unchecked ( xcb->connection, FALSE, xid, xcb->ewmh._NET_WM_ICON, XCB_ATOM_CARDINAL, 0, UINT32_MAX ); xcb_get_property_reply_t *r = xcb_get_property_reply ( xcb->connection, cookie, NULL ); cairo_surface_t *surface = ewmh_window_icon_from_reply ( r, preferred_size ); free ( r ); return surface; } static cairo_surface_t *_get_icon ( const Mode *sw, unsigned int selected_line, int size ) { ModeModePrivateData *rmpd = mode_get_private_data ( sw ); client *c = window_client ( rmpd, rmpd->ids->array[selected_line] ); if ( config.window_thumbnail && c->thumbnail_checked == FALSE ) { c->icon = x11_helper_get_screenshot_surface_window ( c->window, size ); c->thumbnail_checked = TRUE; } if ( c->icon == NULL && c->icon_checked == FALSE ) { c->icon = get_net_wm_icon ( rmpd->ids->array[selected_line], size ); c->icon_checked = TRUE; } if ( c->icon == NULL && c->class ) { if ( c->icon_fetch_uid > 0 ) { return rofi_icon_fetcher_get ( c->icon_fetch_uid ); } c->icon_fetch_uid = rofi_icon_fetcher_query ( c->class, size ); return rofi_icon_fetcher_get ( c->icon_fetch_uid ); } return c->icon; } #include "mode-private.h" Mode window_mode = { .name = "window", .cfg_name_key = "display-window", ._init = window_mode_init, ._get_num_entries = window_mode_get_num_entries, ._result = window_mode_result, ._destroy = window_mode_destroy, ._token_match = window_match, ._get_display_value = _get_display_value, ._get_icon = _get_icon, ._get_completion = NULL, ._preprocess_input = NULL, .private_data = NULL, .free = NULL }; Mode window_mode_cd = { .name = "windowcd", .cfg_name_key = "display-windowcd", ._init = window_mode_init_cd, ._get_num_entries = window_mode_get_num_entries, ._result = window_mode_result, ._destroy = window_mode_destroy, ._token_match = window_match, ._get_display_value = _get_display_value, ._get_icon = _get_icon, ._get_completion = NULL, ._preprocess_input = NULL, .private_data = NULL, .free = NULL }; #endif // WINDOW_MODE