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-rw-r--r--source/dialogs/window-xcb.c759
1 files changed, 759 insertions, 0 deletions
diff --git a/source/dialogs/window-xcb.c b/source/dialogs/window-xcb.c
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+++ b/source/dialogs/window-xcb.c
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+/**
+ * rofi
+ *
+ * MIT/X11 License
+ * Copyright 2013-2017 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>
+
+#ifdef WINDOW_MODE
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <strings.h>
+#include <string.h>
+#include <errno.h>
+#include <xcb/xcb.h>
+#include <xcb/xcb_ewmh.h>
+#include <xcb/xcb_icccm.h>
+#include <xcb/xcb_atom.h>
+
+#include <glib.h>
+
+#include "xcb.h"
+
+#include "rofi.h"
+#include "settings.h"
+#include "helper.h"
+#include "widgets/textbox.h"
+#include "x11-helper.h"
+#include "dialogs/window.h"
+
+#define WINLIST 32
+
+#define CLIENTSTATE 10
+#define CLIENTWINDOWTYPE 10
+
+#define LOG_DOMAIN "Dialogs.Window"
+
+// 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;
+} 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 ) {
+ 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, xcb->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, GRegex **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'
+ GRegex *ftokens[2] = { tokens[j], NULL };
+ if ( c->title != NULL && c->title[0] != '\0' ) {
+ test = helper_token_match ( ftokens, c->title );
+ }
+
+ if ( !test && c->class != NULL && c->class[0] != '\0' ) {
+ test = helper_token_match ( ftokens, c->class );
+ }
+
+ if ( !test && c->role != NULL && c->role[0] != '\0' ) {
+ test = helper_token_match ( ftokens, c->role );
+ }
+
+ if ( !test && c->name != NULL && c->name[0] != '\0' ) {
+ test = helper_token_match ( ftokens, c->name );
+ }
+ if ( !test && c->wmdesktopstr != NULL && c->wmdesktopstr[0] != '\0' ) {
+ test = helper_token_match ( ftokens, c->wmdesktopstr );
+ }
+
+ if ( test == 0 ) {
+ match = 0;
+ }
+ }
+ }
+
+ return match;
+}
+
+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
+ int nwins = 0;
+ xcb_window_t wins[100];
+ xcb_window_t curr_win_id;
+
+ // 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, &current_desktop, NULL ) ) {
+ current_desktop = 0;
+ }
+
+ c = xcb_ewmh_get_client_list_stacking ( &xcb->ewmh, 0 );
+ xcb_ewmh_get_windows_reply_t clients;
+ if ( xcb_ewmh_get_client_list_stacking_reply ( &xcb->ewmh, c, &clients, NULL ) ) {
+ nwins = MIN ( 100, clients.windows_len );
+ memcpy ( wins, clients.windows, nwins * sizeof ( xcb_window_t ) );
+ xcb_ewmh_get_windows_reply_wipe ( &clients );
+ }
+ else {
+ c = xcb_ewmh_get_client_list ( &xcb->ewmh, xcb->screen_nbr );
+ if ( xcb_ewmh_get_client_list_reply ( &xcb->ewmh, c, &clients, NULL ) ) {
+ nwins = MIN ( 100, clients.windows_len );
+ memcpy ( wins, clients.windows, nwins * sizeof ( xcb_window_t ) );
+ xcb_ewmh_get_windows_reply_wipe ( &clients );
+ }
+ }
+ if ( nwins > 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 = nwins - 1; i > -1; i-- ) {
+ client *c = window_client ( pd, wins[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 ( xcb->wm == WM_I3 ) {
+ 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 );
+ }
+ }
+}
+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 );
+ }
+ 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 );
+ }
+ 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, NULL );
+
+ 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 ( ( xcb->wm & ( WM_AWESOME | WM_OPENBOX ) ) != 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, &current_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, xcb->main_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;
+}
+
+#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_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_completion = NULL,
+ ._preprocess_input = NULL,
+ .private_data = NULL,
+ .free = NULL
+};
+
+#endif // WINDOW_MODE