Dogcows Code - chaz/openbox/blob - plugins/placement/placement.c

   1 #include "kernel/dispatch.h"
   2 #include "kernel/client.h"
   3 #include "kernel/group.h"
   4 #include "kernel/frame.h"
   5 #include "kernel/screen.h"
   6 #include "kernel/openbox.h"
   7 #include "parser/parse.h"
   8 #include "history.h"
   9 #include <glib.h>
  10
  11 static gboolean history;
  12
  13 static void parse_xml(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node, void *d)
  14 {
  15     xmlNodePtr n;
  16
  17     node = node->xmlChildrenNode;
  18     if ((n = parse_find_node("remember", node)))
  19         history = parse_bool(doc, n);
  20 }
  21
  22 void plugin_setup_config(ObParseInst *i)
  23 {
  24     history = TRUE;
  25
  26     parse_register(i, "placement", parse_xml, NULL);
  27 }
  28
  29 static Rect* pick_head(ObClient *c)
  30 {
  31     /* try direct parent first */
  32     if (c->transient_for && c->transient_for != OB_TRAN_GROUP) {
  33         return screen_area_monitor(c->desktop,
  34                                    client_monitor(c->transient_for));
  35     }
  36
  37     /* more than one guy in his group (more than just him) */
  38     if (c->group && c->group->members->next) {
  39         GSList *it;
  40
  41         /* try on the client's desktop */
  42         for (it = c->group->members; it; it = g_slist_next(it)) {
  43             ObClient *itc = it->data;
  44             if (itc != c &&
  45                 (itc->desktop == c->desktop ||
  46                  itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
  47                 return screen_area_monitor(c->desktop,
  48                                            client_monitor(it->data));
  49         }
  50
  51         /* try on all desktops */
  52         for (it = c->group->members; it; it = g_slist_next(it)) {
  53             ObClient *itc = it->data;
  54             if (itc != c)
  55                 return screen_area_monitor(c->desktop,
  56                                            client_monitor(it->data));
  57         }
  58     }
  59
  60     return NULL;
  61 }
  62
  63 static void place_random(ObClient *c)
  64 {
  65     int l, r, t, b;
  66     int x, y;
  67     Rect *area;
  68
  69     if (ob_state() == OB_STATE_STARTING) return;
  70
  71     area = pick_head(c);
  72     if (!area)
  73         area = screen_area_monitor(c->desktop,
  74                                    g_random_int_range(0, screen_num_monitors));
  75
  76     l = area->x;
  77     t = area->y;
  78     r = area->x + area->width - c->frame->area.width;
  79     b = area->y + area->height - c->frame->area.height;
  80
  81     if (r > l) x = g_random_int_range(l, r + 1);
  82     else       x = 0;
  83     if (b > t) y = g_random_int_range(t, b + 1);
  84     else       y = 0;
  85
  86     frame_frame_gravity(c->frame, &x, &y); /* get where the client should be */
  87     client_configure(c, OB_CORNER_TOPLEFT, x, y, c->area.width, c->area.height,
  88                      TRUE, TRUE);
  89 }
  90
  91 static void event(ObEvent *e, void *foo)
  92 {
  93     g_assert(e->type == Event_Client_New);
  94
  95     /* requested a position */
  96     if (e->data.c.client->positioned) return;
  97
  98     if (e->data.c.client->transient_for) {
  99         if (e->data.c.client->transient_for != OB_TRAN_GROUP) {
 100             ObClient *c = e->data.c.client;
 101             ObClient *p = e->data.c.client->transient_for;
 102             int x = (p->frame->area.width - c->frame->area.width) / 2 +
 103                 p->frame->area.x;
 104             int y = (p->frame->area.height - c->frame->area.height) / 2 +
 105                 p->frame->area.y;
 106             client_configure(c, OB_CORNER_TOPLEFT, x, y,
 107                              c->area.width, c->area.height,
 108                              TRUE, TRUE);
 109             return;
 110         } else {
 111             GSList *it;
 112             ObClient *c = e->data.c.client;
 113             gboolean first = TRUE;
 114             int l, r, t, b;
 115             for (it = c->group->members; it; it = it->next) {
 116                 ObClient *m = it->data;
 117                 if (!(m == c || m->transient_for)) {
 118                     if (first) {
 119                         l = m->frame->area.x;
 120                         t = m->frame->area.y;
 121                         r = m->frame->area.x + m->frame->area.width - 1;
 122                         b = m->frame->area.y + m->frame->area.height - 1;
 123                         first = FALSE;
 124                     } else {
 125                         l = MIN(l, m->frame->area.x);
 126                         t = MIN(t, m->frame->area.y);
 127                         r = MAX(r, m->frame->area.x +m->frame->area.width - 1);
 128                         b = MAX(b, m->frame->area.y +m->frame->area.height -1);
 129                     }
 130                 }
 131             }
 132             if (!first) {
 133                 int x = ((r + 1 - l) - c->frame->area.width) / 2 + l;
 134                 int y = ((b + 1 - t) - c->frame->area.height) / 2 + t;
 135                 client_configure(c, OB_CORNER_TOPLEFT, x, y,
 136                                  c->area.width, c->area.height,
 137                                  TRUE, TRUE);
 138                 return;
 139             }
 140         }
 141     }
 142
 143     /* center parentless dialogs on the screen */
 144     if (e->data.c.client->type == OB_CLIENT_TYPE_DIALOG) {
 145         Rect *area;
 146         ObClient *c = e->data.c.client;
 147         int x, y;
 148
 149         area = pick_head(c);
 150         if (!area)
 151             area = screen_area_monitor(c->desktop, 0);
 152
 153         x = (area->width - c->frame->area.width) / 2 + area->x;
 154         y = (area->height - c->frame->area.height) / 2 + area->y;
 155         client_configure(c, OB_CORNER_TOPLEFT, x, y,
 156                          c->area.width, c->area.height,
 157                          TRUE, TRUE);
 158         return;
 159     }
 160
 161     if (!history || !place_history(e->data.c.client))
 162         place_random(e->data.c.client);
 163 }
 164
 165 void plugin_startup()
 166 {
 167     dispatch_register(Event_Client_New, (EventHandler)event, NULL);
 168
 169     history_startup();
 170 }
 171
 172 void plugin_shutdown()
 173 {
 174     dispatch_register(0, (EventHandler)event, NULL);
 175
 176     history_shutdown();
 177 }