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