+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ focus.c for the Openbox window manager
+ Copyright (c) 2006 Mikael Magnusson
+ Copyright (c) 2003-2007 Dana Jansens
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#include "focus_cycle.h"
+#include "client.h"
+#include "focus.h"
+#include "screen.h"
+#include "openbox.h"
+#include "frame.h"
+#include "popup.h"
+#include "debug.h"
+#include "group.h"
+#include "event.h"
+#include "render/render.h"
+
+#include <X11/Xlib.h>
+#include <glib.h>
+
+#define FOCUS_INDICATOR_WIDTH 6
+
+struct {
+ InternalWindow top;
+ InternalWindow left;
+ InternalWindow right;
+ InternalWindow bottom;
+} focus_indicator;
+
+ObClient *focus_cycle_target = NULL;
+
+static RrAppearance *a_focus_indicator;
+static RrColor *color_white;
+static ObIconPopup *focus_cycle_popup;
+
+static void focus_cycle_destroy_notify (ObClient *client, gpointer data);
+static Window create_window (Window parent, gulong mask,
+ XSetWindowAttributes *attrib);
+static gboolean focus_target_valid (ObClient *ft,
+ gboolean all_desktops,
+ gboolean dock_windows,
+ gboolean desktop_windows);
+static gboolean focus_target_has_siblings (ObClient *ft,
+ gboolean all_desktops);
+static gchar *popup_get_name (ObClient *c,
+ ObClient **nametarget);
+static void popup_cycle (ObClient *c,
+ gboolean show,
+ gboolean all_desktops,
+ gboolean dock_windows,
+ gboolean desktop_windows);
+static ObClient *focus_find_directional (ObClient *c,
+ ObDirection dir,
+ gboolean dock_windows,
+ gboolean desktop_windows);
+static ObClient *focus_find_directional (ObClient *c,
+ ObDirection dir,
+ gboolean dock_windows,
+ gboolean desktop_windows);
+
+void focus_cycle_startup(gboolean reconfig)
+{
+ focus_cycle_popup = icon_popup_new(TRUE);
+
+ if (!reconfig) {
+ XSetWindowAttributes attr;
+
+ client_add_destroy_notify(focus_cycle_destroy_notify, NULL);
+
+ focus_indicator.top.obwin.type = Window_Internal;
+ focus_indicator.left.obwin.type = Window_Internal;
+ focus_indicator.right.obwin.type = Window_Internal;
+ focus_indicator.bottom.obwin.type = Window_Internal;
+
+ attr.override_redirect = True;
+ attr.background_pixel = BlackPixel(ob_display, ob_screen);
+ focus_indicator.top.win =
+ create_window(RootWindow(ob_display, ob_screen),
+ CWOverrideRedirect | CWBackPixel, &attr);
+ focus_indicator.left.win =
+ create_window(RootWindow(ob_display, ob_screen),
+ CWOverrideRedirect | CWBackPixel, &attr);
+ focus_indicator.right.win =
+ create_window(RootWindow(ob_display, ob_screen),
+ CWOverrideRedirect | CWBackPixel, &attr);
+ focus_indicator.bottom.win =
+ create_window(RootWindow(ob_display, ob_screen),
+ CWOverrideRedirect | CWBackPixel, &attr);
+
+ stacking_add(INTERNAL_AS_WINDOW(&focus_indicator.top));
+ stacking_add(INTERNAL_AS_WINDOW(&focus_indicator.left));
+ stacking_add(INTERNAL_AS_WINDOW(&focus_indicator.right));
+ stacking_add(INTERNAL_AS_WINDOW(&focus_indicator.bottom));
+
+ color_white = RrColorNew(ob_rr_inst, 0xff, 0xff, 0xff);
+
+ a_focus_indicator = RrAppearanceNew(ob_rr_inst, 4);
+ a_focus_indicator->surface.grad = RR_SURFACE_SOLID;
+ a_focus_indicator->surface.relief = RR_RELIEF_FLAT;
+ a_focus_indicator->surface.primary = RrColorNew(ob_rr_inst,
+ 0, 0, 0);
+ a_focus_indicator->texture[0].type = RR_TEXTURE_LINE_ART;
+ a_focus_indicator->texture[0].data.lineart.color = color_white;
+ a_focus_indicator->texture[1].type = RR_TEXTURE_LINE_ART;
+ a_focus_indicator->texture[1].data.lineart.color = color_white;
+ a_focus_indicator->texture[2].type = RR_TEXTURE_LINE_ART;
+ a_focus_indicator->texture[2].data.lineart.color = color_white;
+ a_focus_indicator->texture[3].type = RR_TEXTURE_LINE_ART;
+ a_focus_indicator->texture[3].data.lineart.color = color_white;
+ }
+}
+
+void focus_cycle_shutdown(gboolean reconfig)
+{
+ icon_popup_free(focus_cycle_popup);
+
+ if (!reconfig) {
+ client_remove_destroy_notify(focus_cycle_destroy_notify);
+
+ RrColorFree(color_white);
+
+ RrAppearanceFree(a_focus_indicator);
+
+ XDestroyWindow(ob_display, focus_indicator.top.win);
+ XDestroyWindow(ob_display, focus_indicator.left.win);
+ XDestroyWindow(ob_display, focus_indicator.right.win);
+ XDestroyWindow(ob_display, focus_indicator.bottom.win);
+ }
+}
+
+void focus_cycle_stop()
+{
+ if (focus_cycle_target)
+ focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
+}
+
+
+static Window create_window(Window parent, gulong mask,
+ XSetWindowAttributes *attrib)
+{
+ return XCreateWindow(ob_display, parent, 0, 0, 1, 1, 0,
+ RrDepth(ob_rr_inst), InputOutput,
+ RrVisual(ob_rr_inst), mask, attrib);
+
+}
+
+static gchar *popup_get_name(ObClient *c, ObClient **nametarget)
+{
+ ObClient *p;
+ gchar *title = NULL;
+ const gchar *desk = NULL;
+ gchar *ret;
+
+ /* find our highest direct parent, including non-normal windows */
+ for (p = c; p->transient_for && p->transient_for != OB_TRAN_GROUP;
+ p = p->transient_for);
+
+ if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
+ desk = screen_desktop_names[c->desktop];
+
+ /* use the transient's parent's title/icon if we don't have one */
+ if (p != c && !strcmp("", (c->iconic ? c->icon_title : c->title)))
+ title = g_strdup(p->iconic ? p->icon_title : p->title);
+
+ if (title == NULL)
+ title = g_strdup(c->iconic ? c->icon_title : c->title);
+
+ if (desk)
+ ret = g_strdup_printf("%s [%s]", title, desk);
+ else {
+ ret = title;
+ title = NULL;
+ }
+ g_free(title);
+
+ /* set this only if we're returning true and they asked for it */
+ if (ret && nametarget) *nametarget = p;
+ return ret;
+}
+
+static void popup_cycle(ObClient *c, gboolean show,
+ gboolean all_desktops, gboolean dock_windows,
+ gboolean desktop_windows)
+{
+ gchar *showtext = NULL;
+ ObClient *showtarget;
+
+ if (!show) {
+ icon_popup_hide(focus_cycle_popup);
+ return;
+ }
+
+ /* do this stuff only when the dialog is first showing */
+ if (!focus_cycle_popup->popup->mapped &&
+ !focus_cycle_popup->popup->delay_mapped)
+ {
+ Rect *a;
+ gchar **names;
+ GList *targets = NULL, *it;
+ gint n = 0, i;
+
+ /* position the popup */
+ a = screen_physical_area_monitor(0);
+ icon_popup_position(focus_cycle_popup, CenterGravity,
+ a->x + a->width / 2, a->y + a->height / 2);
+ icon_popup_height(focus_cycle_popup, POPUP_HEIGHT);
+ icon_popup_min_width(focus_cycle_popup, POPUP_WIDTH);
+ icon_popup_max_width(focus_cycle_popup,
+ MAX(a->width/3, POPUP_WIDTH));
+
+
+ /* make its width to be the width of all the possible titles */
+
+ /* build a list of all the valid focus targets */
+ for (it = focus_order; it; it = g_list_next(it)) {
+ ObClient *ft = it->data;
+ if (focus_target_valid(ft, all_desktops, dock_windows
+ , desktop_windows))
+ {
+ targets = g_list_prepend(targets, ft);
+ ++n;
+ }
+ }
+ /* make it null terminated so we can use g_strfreev */
+ names = g_new(char*, n+1);
+ for (it = targets, i = 0; it; it = g_list_next(it), ++i) {
+ ObClient *ft = it->data, *t;
+ names[i] = popup_get_name(ft, &t);
+
+ /* little optimization.. save this text and client, so we dont
+ have to get it again */
+ if (ft == c) {
+ showtext = g_strdup(names[i]);
+ showtarget = t;
+ }
+ }
+ names[n] = NULL;
+
+ icon_popup_text_width_to_strings(focus_cycle_popup, names, n);
+ g_strfreev(names);
+ }
+
+
+ if (!showtext) showtext = popup_get_name(c, &showtarget);
+ icon_popup_show(focus_cycle_popup, showtext,
+ client_icon(showtarget, 48, 48));
+ g_free(showtext);
+}
+
+static void focus_cycle_destroy_notify(ObClient *client, gpointer data)
+{
+ /* end cycling if the target disappears. CurrentTime is fine, time won't
+ be used
+ */
+ if (focus_cycle_target == client)
+ focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
+}
+
+void focus_cycle_draw_indicator()
+{
+ if (!focus_cycle_target) {
+ XUnmapWindow(ob_display, focus_indicator.top.win);
+ XUnmapWindow(ob_display, focus_indicator.left.win);
+ XUnmapWindow(ob_display, focus_indicator.right.win);
+ XUnmapWindow(ob_display, focus_indicator.bottom.win);
+
+ /* kill enter events cause by this unmapping */
+ event_ignore_all_queued_enters();
+ } else {
+ /*
+ if (focus_cycle_target)
+ frame_adjust_focus(focus_cycle_target->frame, FALSE);
+ frame_adjust_focus(focus_cycle_target->frame, TRUE);
+ */
+ gint x, y, w, h;
+ gint wt, wl, wr, wb;
+
+ wt = wl = wr = wb = FOCUS_INDICATOR_WIDTH;
+
+ x = focus_cycle_target->frame->area.x;
+ y = focus_cycle_target->frame->area.y;
+ w = focus_cycle_target->frame->area.width;
+ h = wt;
+
+ XMoveResizeWindow(ob_display, focus_indicator.top.win,
+ x, y, w, h);
+ a_focus_indicator->texture[0].data.lineart.x1 = 0;
+ a_focus_indicator->texture[0].data.lineart.y1 = h-1;
+ a_focus_indicator->texture[0].data.lineart.x2 = 0;
+ a_focus_indicator->texture[0].data.lineart.y2 = 0;
+ a_focus_indicator->texture[1].data.lineart.x1 = 0;
+ a_focus_indicator->texture[1].data.lineart.y1 = 0;
+ a_focus_indicator->texture[1].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[1].data.lineart.y2 = 0;
+ a_focus_indicator->texture[2].data.lineart.x1 = w-1;
+ a_focus_indicator->texture[2].data.lineart.y1 = 0;
+ a_focus_indicator->texture[2].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[2].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[3].data.lineart.x1 = (wl-1);
+ a_focus_indicator->texture[3].data.lineart.y1 = h-1;
+ a_focus_indicator->texture[3].data.lineart.x2 = w - wr;
+ a_focus_indicator->texture[3].data.lineart.y2 = h-1;
+ RrPaint(a_focus_indicator, focus_indicator.top.win,
+ w, h);
+
+ x = focus_cycle_target->frame->area.x;
+ y = focus_cycle_target->frame->area.y;
+ w = wl;
+ h = focus_cycle_target->frame->area.height;
+
+ XMoveResizeWindow(ob_display, focus_indicator.left.win,
+ x, y, w, h);
+ a_focus_indicator->texture[0].data.lineart.x1 = w-1;
+ a_focus_indicator->texture[0].data.lineart.y1 = 0;
+ a_focus_indicator->texture[0].data.lineart.x2 = 0;
+ a_focus_indicator->texture[0].data.lineart.y2 = 0;
+ a_focus_indicator->texture[1].data.lineart.x1 = 0;
+ a_focus_indicator->texture[1].data.lineart.y1 = 0;
+ a_focus_indicator->texture[1].data.lineart.x2 = 0;
+ a_focus_indicator->texture[1].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[2].data.lineart.x1 = 0;
+ a_focus_indicator->texture[2].data.lineart.y1 = h-1;
+ a_focus_indicator->texture[2].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[2].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[3].data.lineart.x1 = w-1;
+ a_focus_indicator->texture[3].data.lineart.y1 = wt-1;
+ a_focus_indicator->texture[3].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[3].data.lineart.y2 = h - wb;
+ RrPaint(a_focus_indicator, focus_indicator.left.win,
+ w, h);
+
+ x = focus_cycle_target->frame->area.x +
+ focus_cycle_target->frame->area.width - wr;
+ y = focus_cycle_target->frame->area.y;
+ w = wr;
+ h = focus_cycle_target->frame->area.height ;
+
+ XMoveResizeWindow(ob_display, focus_indicator.right.win,
+ x, y, w, h);
+ a_focus_indicator->texture[0].data.lineart.x1 = 0;
+ a_focus_indicator->texture[0].data.lineart.y1 = 0;
+ a_focus_indicator->texture[0].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[0].data.lineart.y2 = 0;
+ a_focus_indicator->texture[1].data.lineart.x1 = w-1;
+ a_focus_indicator->texture[1].data.lineart.y1 = 0;
+ a_focus_indicator->texture[1].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[1].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[2].data.lineart.x1 = w-1;
+ a_focus_indicator->texture[2].data.lineart.y1 = h-1;
+ a_focus_indicator->texture[2].data.lineart.x2 = 0;
+ a_focus_indicator->texture[2].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[3].data.lineart.x1 = 0;
+ a_focus_indicator->texture[3].data.lineart.y1 = wt-1;
+ a_focus_indicator->texture[3].data.lineart.x2 = 0;
+ a_focus_indicator->texture[3].data.lineart.y2 = h - wb;
+ RrPaint(a_focus_indicator, focus_indicator.right.win,
+ w, h);
+
+ x = focus_cycle_target->frame->area.x;
+ y = focus_cycle_target->frame->area.y +
+ focus_cycle_target->frame->area.height - wb;
+ w = focus_cycle_target->frame->area.width;
+ h = wb;
+
+ XMoveResizeWindow(ob_display, focus_indicator.bottom.win,
+ x, y, w, h);
+ a_focus_indicator->texture[0].data.lineart.x1 = 0;
+ a_focus_indicator->texture[0].data.lineart.y1 = 0;
+ a_focus_indicator->texture[0].data.lineart.x2 = 0;
+ a_focus_indicator->texture[0].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[1].data.lineart.x1 = 0;
+ a_focus_indicator->texture[1].data.lineart.y1 = h-1;
+ a_focus_indicator->texture[1].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[1].data.lineart.y2 = h-1;
+ a_focus_indicator->texture[2].data.lineart.x1 = w-1;
+ a_focus_indicator->texture[2].data.lineart.y1 = h-1;
+ a_focus_indicator->texture[2].data.lineart.x2 = w-1;
+ a_focus_indicator->texture[2].data.lineart.y2 = 0;
+ a_focus_indicator->texture[3].data.lineart.x1 = wl-1;
+ a_focus_indicator->texture[3].data.lineart.y1 = 0;
+ a_focus_indicator->texture[3].data.lineart.x2 = w - wr;
+ a_focus_indicator->texture[3].data.lineart.y2 = 0;
+ RrPaint(a_focus_indicator, focus_indicator.bottom.win,
+ w, h);
+
+ XMapWindow(ob_display, focus_indicator.top.win);
+ XMapWindow(ob_display, focus_indicator.left.win);
+ XMapWindow(ob_display, focus_indicator.right.win);
+ XMapWindow(ob_display, focus_indicator.bottom.win);
+ }
+}
+
+/*! Returns if a focus target has valid group siblings that can be cycled
+ to in its place */
+static gboolean focus_target_has_siblings(ObClient *ft, gboolean all_desktops)
+
+{
+ GSList *it;
+
+ if (!ft->group) return FALSE;
+
+ for (it = ft->group->members; it; it = g_slist_next(it)) {
+ ObClient *c = it->data;
+ /* check that it's not a helper window to avoid infinite recursion */
+ if (c != ft && !client_helper(c) &&
+ focus_target_valid(c, all_desktops, FALSE, FALSE))
+ {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/*! @param allow_helpers This is used for calling itself recursively while
+ checking helper windows. */
+static gboolean focus_target_valid(ObClient *ft,
+ gboolean all_desktops,
+ gboolean dock_windows,
+ gboolean desktop_windows)
+{
+ gboolean ok = FALSE;
+
+ /* it's on this desktop unless you want all desktops.
+
+ do this check first because it will usually filter out the most
+ windows */
+ ok = (all_desktops || ft->desktop == screen_desktop ||
+ ft->desktop == DESKTOP_ALL);
+
+ /* the window can receive focus somehow */
+ ok = ok && (ft->can_focus || ft->focus_notify);
+
+ /* it's the right type of window */
+ if (dock_windows || desktop_windows)
+ ok = ok && ((dock_windows && ft->type == OB_CLIENT_TYPE_DOCK) ||
+ (desktop_windows && ft->type == OB_CLIENT_TYPE_DESKTOP));
+ else
+ /* normal non-helper windows are valid targets */
+ ok = ok &&
+ ((client_normal(ft) && !client_helper(ft))
+ ||
+ /* helper windows are valid targets it... */
+ (client_helper(ft) &&
+ /* ...a window in its group already has focus ... */
+ ((focus_client && ft->group == focus_client->group) ||
+ /* ... or if there are no other windows in its group
+ that can be cycled to instead */
+ !focus_target_has_siblings(ft, all_desktops))));
+
+ /* it's not set to skip the taskbar (unless it is a type that would be
+ expected to set this hint */
+ ok = ok && ((ft->type == OB_CLIENT_TYPE_DOCK ||
+ ft->type == OB_CLIENT_TYPE_DESKTOP ||
+ ft->type == OB_CLIENT_TYPE_TOOLBAR ||
+ ft->type == OB_CLIENT_TYPE_MENU ||
+ ft->type == OB_CLIENT_TYPE_UTILITY) ||
+ !ft->skip_taskbar);
+
+ /* it's not going to just send fous off somewhere else (modal window) */
+ ok = ok && ft == client_focus_target(ft);
+
+ return ok;
+}
+
+void focus_cycle(gboolean forward, gboolean all_desktops,
+ gboolean dock_windows, gboolean desktop_windows,
+ gboolean linear, gboolean interactive,
+ gboolean dialog, gboolean done, gboolean cancel)
+{
+ static ObClient *first = NULL;
+ static ObClient *t = NULL;
+ static GList *order = NULL;
+ GList *it, *start, *list;
+ ObClient *ft = NULL;
+
+ if (interactive) {
+ if (cancel) {
+ focus_cycle_target = NULL;
+ goto done_cycle;
+ } else if (done)
+ goto done_cycle;
+
+ if (!focus_order)
+ goto done_cycle;
+
+ if (!first) first = focus_client;
+
+ if (linear) list = client_list;
+ else list = focus_order;
+ } else {
+ if (!focus_order)
+ goto done_cycle;
+ list = client_list;
+ }
+ if (!focus_cycle_target) focus_cycle_target = focus_client;
+
+ start = it = g_list_find(list, focus_cycle_target);
+ if (!start) /* switched desktops or something? */
+ start = it = forward ? g_list_last(list) : g_list_first(list);
+ if (!start) goto done_cycle;
+
+ do {
+ if (forward) {
+ it = it->next;
+ if (it == NULL) it = g_list_first(list);
+ } else {
+ it = it->prev;
+ if (it == NULL) it = g_list_last(list);
+ }
+ ft = it->data;
+ if (focus_target_valid(ft, all_desktops, dock_windows,
+ desktop_windows))
+ {
+ if (interactive) {
+ if (ft != focus_cycle_target) { /* prevents flicker */
+ focus_cycle_target = ft;
+ focus_cycle_draw_indicator();
+ }
+ /* same arguments as focus_target_valid */
+ popup_cycle(ft, dialog, all_desktops, dock_windows,
+ desktop_windows);
+ return;
+ } else if (ft != focus_cycle_target) {
+ focus_cycle_target = ft;
+ done = TRUE;
+ break;
+ }
+ }
+ } while (it != start);
+
+done_cycle:
+ if (done && focus_cycle_target)
+ client_activate(focus_cycle_target, FALSE, TRUE);
+
+ t = NULL;
+ first = NULL;
+ focus_cycle_target = NULL;
+ g_list_free(order);
+ order = NULL;
+
+ if (interactive) {
+ focus_cycle_draw_indicator();
+ popup_cycle(ft, FALSE, FALSE, FALSE, FALSE);
+ }
+
+ return;
+}
+
+/* this be mostly ripped from fvwm */
+static ObClient *focus_find_directional(ObClient *c, ObDirection dir,
+ gboolean dock_windows,
+ gboolean desktop_windows)
+{
+ gint my_cx, my_cy, his_cx, his_cy;
+ gint offset = 0;
+ gint distance = 0;
+ gint score, best_score;
+ ObClient *best_client, *cur;
+ GList *it;
+
+ if(!client_list)
+ return NULL;
+
+ /* first, find the centre coords of the currently focused window */
+ my_cx = c->frame->area.x + c->frame->area.width / 2;
+ my_cy = c->frame->area.y + c->frame->area.height / 2;
+
+ best_score = -1;
+ best_client = NULL;
+
+ for(it = g_list_first(client_list); it; it = g_list_next(it)) {
+ cur = it->data;
+
+ /* the currently selected window isn't interesting */
+ if(cur == c)
+ continue;
+ if (cur->type == OB_CLIENT_TYPE_DOCK && !dock_windows)
+ continue;
+ if (cur->type == OB_CLIENT_TYPE_DESKTOP && !desktop_windows)
+ continue;
+ if (!client_normal(cur) &&
+ cur->type != OB_CLIENT_TYPE_DOCK &&
+ cur->type != OB_CLIENT_TYPE_DESKTOP)
+ continue;
+ /* using c->desktop instead of screen_desktop doesn't work if the
+ * current window was omnipresent, hope this doesn't have any other
+ * side effects */
+ if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL)
+ continue;
+ if(cur->iconic)
+ continue;
+ if(!(client_focus_target(cur) == cur &&
+ client_can_focus(cur)))
+ continue;
+
+ /* find the centre coords of this window, from the
+ * currently focused window's point of view */
+ his_cx = (cur->frame->area.x - my_cx)
+ + cur->frame->area.width / 2;
+ his_cy = (cur->frame->area.y - my_cy)
+ + cur->frame->area.height / 2;
+
+ if(dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
+ dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST) {
+ gint tx;
+ /* Rotate the diagonals 45 degrees counterclockwise.
+ * To do this, multiply the matrix /+h +h\ with the
+ * vector (x y). \-h +h/
+ * h = sqrt(0.5). We can set h := 1 since absolute
+ * distance doesn't matter here. */
+ tx = his_cx + his_cy;
+ his_cy = -his_cx + his_cy;
+ his_cx = tx;
+ }
+
+ switch(dir) {
+ case OB_DIRECTION_NORTH:
+ case OB_DIRECTION_SOUTH:
+ case OB_DIRECTION_NORTHEAST:
+ case OB_DIRECTION_SOUTHWEST:
+ offset = (his_cx < 0) ? -his_cx : his_cx;
+ distance = ((dir == OB_DIRECTION_NORTH ||
+ dir == OB_DIRECTION_NORTHEAST) ?
+ -his_cy : his_cy);
+ break;
+ case OB_DIRECTION_EAST:
+ case OB_DIRECTION_WEST:
+ case OB_DIRECTION_SOUTHEAST:
+ case OB_DIRECTION_NORTHWEST:
+ offset = (his_cy < 0) ? -his_cy : his_cy;
+ distance = ((dir == OB_DIRECTION_WEST ||
+ dir == OB_DIRECTION_NORTHWEST) ?
+ -his_cx : his_cx);
+ break;
+ }
+
+ /* the target must be in the requested direction */
+ if(distance <= 0)
+ continue;
+
+ /* Calculate score for this window. The smaller the better. */
+ score = distance + offset;
+
+ /* windows more than 45 degrees off the direction are
+ * heavily penalized and will only be chosen if nothing
+ * else within a million pixels */
+ if(offset > distance)
+ score += 1000000;
+
+ if(best_score == -1 || score < best_score)
+ best_client = cur,
+ best_score = score;
+ }
+
+ return best_client;
+}
+
+void focus_directional_cycle(ObDirection dir, gboolean dock_windows,
+ gboolean desktop_windows, gboolean interactive,
+ gboolean dialog, gboolean done, gboolean cancel)
+{
+ static ObClient *first = NULL;
+ ObClient *ft = NULL;
+
+ if (!interactive)
+ return;
+
+ if (cancel) {
+ focus_cycle_target = NULL;
+ goto done_cycle;
+ } else if (done)
+ goto done_cycle;
+
+ if (!focus_order)
+ goto done_cycle;
+
+ if (!first) first = focus_client;
+ if (!focus_cycle_target) focus_cycle_target = focus_client;
+
+ if (focus_cycle_target)
+ ft = focus_find_directional(focus_cycle_target, dir, dock_windows,
+ desktop_windows);
+ else {
+ GList *it;
+
+ for (it = focus_order; it; it = g_list_next(it))
+ if (focus_target_valid(it->data, FALSE, dock_windows,
+ desktop_windows))
+ ft = it->data;
+ }
+
+ if (ft) {
+ if (ft != focus_cycle_target) {/* prevents flicker */
+ focus_cycle_target = ft;
+ focus_cycle_draw_indicator();
+ }
+ }
+ if (focus_cycle_target) {
+ /* same arguments as focus_target_valid */
+ popup_cycle(focus_cycle_target, dialog, FALSE, dock_windows,
+ desktop_windows);
+ if (dialog)
+ return;
+ }
+
+
+done_cycle:
+ if (done && focus_cycle_target)
+ client_activate(focus_cycle_target, FALSE, TRUE);
+
+ first = NULL;
+ focus_cycle_target = NULL;
+
+ focus_cycle_draw_indicator();
+ popup_cycle(ft, FALSE, FALSE, FALSE, FALSE);
+
+ return;
+}
+
+void focus_order_add_new(ObClient *c)
+{
+ if (c->iconic)
+ focus_order_to_top(c);
+ else {
+ g_assert(!g_list_find(focus_order, c));
+ /* if there are any iconic windows, put this above them in the order,
+ but if there are not, then put it under the currently focused one */
+ if (focus_order && ((ObClient*)focus_order->data)->iconic)
+ focus_order = g_list_insert(focus_order, c, 0);
+ else
+ focus_order = g_list_insert(focus_order, c, 1);
+ }
+}
+