window.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <stdarg.h>
   4 #include <string.h>
   5 #include <xcb/xcb.h>
   6 #include <xcb/xcb_event.h>
   7 #include "helpers.h"
   8 #include "types.h"
   9 #include "tree.h"
  10 #include "bspwm.h"
  11 #include "settings.h"
  12 #include "ewmh.h"
  13 #include "window.h"
  14
  15 #define p_clear(p, count)       ((void)memset((p), 0, sizeof(*(p)) * (count)))
  16
  17 bool locate_window(xcb_window_t win, window_location_t *loc)
  18 {
  19     node_t *n;
  20     desktop_t *d = desk_head;
  21
  22     if (d == NULL)
  23         return false;
  24
  25     while (d != NULL) {
  26         n = first_extrema(d->root);
  27         while (n != NULL) {
  28             if (n->client->window == win) {
  29                 loc->desktop = d;
  30                 loc->node = n;
  31                 return true;
  32             }
  33             n = next_leaf(n);
  34         }
  35         d = d->next;
  36     }
  37
  38     return false;
  39 }
  40
  41 void window_draw_border(node_t *n, bool focused)
  42 {
  43     if (n == NULL)
  44         return;
  45
  46     if (border_width < 1 || n->client->border_width < 1)
  47         return;
  48
  49     xcb_window_t win = n->client->window;
  50
  51     xcb_rectangle_t actual_rectangle = (is_tiled(n->client) ? n->client->tiled_rectangle : n->client->floating_rectangle);
  52
  53     uint16_t width = actual_rectangle.width;
  54     uint16_t height = actual_rectangle.height;
  55
  56     uint16_t full_width = width + 2 * border_width;
  57     uint16_t full_height = height + 2 * border_width;
  58
  59     xcb_rectangle_t inner_rectangles[] =
  60     {
  61         { width, 0, 2 * border_width, height + 2 * border_width },
  62         { 0, height, width + 2 * border_width, 2 * border_width }
  63     };
  64
  65     xcb_rectangle_t main_rectangles[] =
  66     {
  67         { width + inner_border_width, 0, 2 * (main_border_width + outer_border_width), height + 2 * border_width },
  68         { 0, height + inner_border_width, width + 2 * border_width, 2 * (main_border_width + outer_border_width) }
  69     };
  70
  71     xcb_rectangle_t outer_rectangles[] =
  72     {
  73         { width + inner_border_width + main_border_width, 0, 2 * outer_border_width, height + 2 * border_width },
  74         { 0, height + inner_border_width + main_border_width, width + 2 * border_width, 2 * outer_border_width }
  75     };
  76
  77     xcb_rectangle_t *presel_rectangles;
  78
  79     xcb_pixmap_t pix = xcb_generate_id(dpy);
  80     xcb_create_pixmap(dpy, root_depth, pix, win, full_width, full_height);
  81
  82     xcb_gcontext_t gc = xcb_generate_id(dpy);
  83     xcb_create_gc(dpy, gc, pix, 0, NULL);
  84
  85     uint32_t main_border_color_pxl = get_main_border_color(n->client, focused);
  86
  87     /* inner border */
  88     if (inner_border_width > 0) {
  89         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &inner_border_color_pxl);
  90         xcb_poly_fill_rectangle(dpy, pix, gc, LENGTH(inner_rectangles), inner_rectangles);
  91     }
  92
  93     /* main border */
  94     if (main_border_width > 0) {
  95         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &main_border_color_pxl);
  96         xcb_poly_fill_rectangle(dpy, pix, gc, LENGTH(main_rectangles), main_rectangles);
  97     }
  98
  99     /* outer border */
 100     if (outer_border_width > 0) {
 101         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &outer_border_color_pxl);
 102         xcb_poly_fill_rectangle(dpy, pix, gc, LENGTH(outer_rectangles), outer_rectangles);
 103     }
 104
 105     if (split_mode == MODE_MANUAL && focused) {
 106         uint16_t fence = (int16_t) (n->split_ratio * ((split_dir == DIR_UP || split_dir == DIR_DOWN) ? height : width));
 107         presel_rectangles = malloc(2 * sizeof(xcb_rectangle_t));
 108         switch (split_dir) {
 109             case DIR_UP:
 110                 presel_rectangles[0] = (xcb_rectangle_t) {width, 0, 2 * border_width, fence};
 111                 presel_rectangles[1] = (xcb_rectangle_t) {0, height + border_width, full_width, border_width};
 112                 break;
 113             case DIR_DOWN:
 114                 presel_rectangles[0] = (xcb_rectangle_t) {width, fence + 1, 2 * border_width, height + border_width - (fence + 1)};
 115                 presel_rectangles[1] = (xcb_rectangle_t) {0, height, full_width, border_width};
 116                 break;
 117             case DIR_LEFT:
 118                 presel_rectangles[0] = (xcb_rectangle_t) {0, height, fence, 2 * border_width};
 119                 presel_rectangles[1] = (xcb_rectangle_t) {width + border_width, 0, border_width, full_height};
 120                 break;
 121             case DIR_RIGHT:
 122                 presel_rectangles[0] = (xcb_rectangle_t) {fence + 1, height, width + border_width - (fence + 1), 2 * border_width};
 123                 presel_rectangles[1] = (xcb_rectangle_t) {width, 0, border_width, full_height};
 124                 break;
 125         }
 126         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &presel_border_color_pxl);
 127         xcb_poly_fill_rectangle(dpy, pix, gc, 2, presel_rectangles);
 128         free(presel_rectangles);
 129     }
 130
 131     /* apply border pixmap */
 132     xcb_change_window_attributes(dpy, win, XCB_CW_BORDER_PIXMAP, &pix);
 133
 134     xcb_free_gc(dpy, gc);
 135     xcb_free_pixmap(dpy, pix);
 136 }
 137
 138 void window_close(node_t *n)
 139 {
 140     if (n == NULL || n->client->locked)
 141         return;
 142
 143     PRINTF("close window %X\n", n->client->window);
 144
 145     xcb_atom_t WM_DELETE_WINDOW;
 146     xcb_window_t win = n->client->window;
 147     xcb_client_message_event_t e;
 148
 149     xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(dpy, xcb_intern_atom(dpy, 0, strlen("WM_DELETE_WINDOW"), "WM_DELETE_WINDOW"), NULL);
 150     if (reply) {
 151         WM_DELETE_WINDOW = reply->atom;
 152         free(reply);
 153     } else {
 154         PUTS("could not acquire WM_DELETE_WINDOW atom");
 155         return;
 156     }
 157
 158     e.response_type = XCB_CLIENT_MESSAGE;
 159     e.window = win;
 160     e.format = 32;
 161     e.sequence = 0;
 162     e.type = ewmh->WM_PROTOCOLS;
 163     e.data.data32[0] = WM_DELETE_WINDOW;
 164     e.data.data32[1] = XCB_CURRENT_TIME;
 165
 166     xcb_send_event(dpy, false, win, XCB_EVENT_MASK_NO_EVENT, (char *) &e);
 167 }
 168
 169 void window_kill(desktop_t *d, node_t *n)
 170 {
 171     if (n == NULL)
 172         return;
 173
 174     PRINTF("kill window %X\n", n->client->window);
 175
 176     xcb_kill_client(dpy, n->client->window);
 177     remove_node(d, n);
 178 }
 179
 180 void toggle_fullscreen(client_t *c)
 181 {
 182     if (c->fullscreen) {
 183         c->fullscreen = false;
 184         xcb_atom_t values[] = {XCB_NONE};
 185         xcb_ewmh_set_wm_state(ewmh, c->window, LENGTH(values), values);
 186         xcb_rectangle_t rect;
 187         if (is_floating(c))
 188             rect = c->floating_rectangle;
 189         else
 190             rect = c->tiled_rectangle;
 191         window_border_width(c->window, c->border_width);
 192         window_move_resize(c->window, rect.x, rect.y, rect.width, rect.height);
 193     } else {
 194         c->fullscreen = true;
 195         xcb_atom_t values[] = {ewmh->_NET_WM_STATE_FULLSCREEN};
 196         xcb_ewmh_set_wm_state(ewmh, c->window, LENGTH(values), values);
 197         window_raise(c->window);
 198         window_border_width(c->window, 0);
 199         window_move_resize(c->window, 0, 0, screen_width, screen_height);
 200     }
 201 }
 202
 203 void toggle_floating(node_t *n)
 204 {
 205     if (n == NULL || n->client->transient)
 206         return;
 207
 208     PUTS("toggle floating");
 209
 210     client_t *c = n->client;
 211     c->floating = !c->floating;
 212     n->vacant = !n->vacant;
 213     update_vacant_state(n->parent);
 214     if (c->floating)
 215         window_raise(c->window);
 216     else if (is_tiled(c))
 217         window_lower(c->window);
 218
 219 }
 220
 221 void toggle_locked(client_t *c)
 222 {
 223     c->locked = !c->locked;
 224 }
 225
 226 void list_windows(char *rsp)
 227 {
 228     char line[MAXLEN];
 229
 230     desktop_t *d = desk_head;
 231
 232     while (d != NULL) {
 233         node_t *n = first_extrema(d->root);
 234         while (n != NULL) {
 235             sprintf(line, "0x%X\n", n->client->window);
 236             strcat(rsp, line);
 237             n = next_leaf(n);
 238         }
 239         d = d->next;
 240     }
 241 }
 242
 243 uint32_t get_main_border_color(client_t *c, bool focused)
 244 {
 245     if (c == NULL)
 246         return 0;
 247
 248     if (focused) {
 249         if (c->locked)
 250             return active_locked_border_color_pxl;
 251         else
 252             return active_border_color_pxl;
 253     } else {
 254         if (c->urgent)
 255             return urgent_border_color_pxl;
 256         else if (c->locked)
 257             return normal_locked_border_color_pxl;
 258         else
 259             return normal_border_color_pxl;
 260     }
 261 }
 262
 263 void update_floating_rectangle(client_t *c)
 264 {
 265     xcb_get_geometry_reply_t *geom = xcb_get_geometry_reply(dpy, xcb_get_geometry(dpy, c->window), NULL);
 266
 267     if (geom) {
 268         c->floating_rectangle = (xcb_rectangle_t) {geom->x, geom->y, geom->width, geom->height};
 269         free(geom);
 270     } else {
 271         c->floating_rectangle = (xcb_rectangle_t) {0, 0, 320, 240};
 272     }
 273 }
 274
 275 void window_border_width(xcb_window_t win, uint32_t bw)
 276 {
 277     uint32_t values[] = {bw};
 278     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_BORDER_WIDTH, values);
 279 }
 280
 281 void window_move(xcb_window_t win, int16_t x, int16_t y)
 282 {
 283     uint32_t values[] = {x, y};
 284     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_X_Y, values);
 285 }
 286
 287 void window_move_resize(xcb_window_t win, int16_t x, int16_t y, uint16_t w, uint16_t h)
 288 {
 289     uint32_t values[] = {x, y, w, h};
 290     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_X_Y_WIDTH_HEIGHT, values);
 291 }
 292
 293 void window_raise(xcb_window_t win)
 294 {
 295     uint32_t values[] = {XCB_STACK_MODE_ABOVE};
 296     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
 297 }
 298
 299 void window_lower(xcb_window_t win)
 300 {
 301     uint32_t values[] = {XCB_STACK_MODE_BELOW};
 302     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
 303 }
 304
 305 void window_set_visibility(xcb_window_t win, bool visible) {
 306     uint32_t values_off[] = {ROOT_EVENT_MASK & ~XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY};
 307     uint32_t values_on[] = {ROOT_EVENT_MASK};
 308     xcb_change_window_attributes(dpy, screen->root, XCB_CW_EVENT_MASK, values_off);
 309     if (visible)
 310         xcb_map_window(dpy, win);
 311     else
 312         xcb_unmap_window(dpy, win);
 313     xcb_change_window_attributes(dpy, screen->root, XCB_CW_EVENT_MASK, values_on);
 314 }
 315
 316 void window_hide(xcb_window_t win)
 317 {
 318     window_set_visibility(win, false);
 319 }
 320
 321 void window_show(xcb_window_t win)
 322 {
 323     window_set_visibility(win, true);
 324 }