+ }
+
+ /* - Only grab mouse button on unfocused window,
+ * this prevents stealing all mouse clicks from client windows,
+ * - A better way may be to re-send mouse clicks to client windows
+ * using the return value from wm_handle_key */
+ for (int i = key_mouse1; i < key_mouse7; i++) {
+ if (wm_focus)
+ sys_watch(wm_focus, i, MOD());
+ sys_unwatch(win, i, MOD());
+ }
+
+ dpy_t *dpy; col_t *col; row_t *row;
+ if (search(wm_tag, win, &dpy, &col, &row)) {
+ wm_dpy = dpy;
+ wm_col = col;
+ wm_row = row;
+ }
+ sys_focus(win);
+}
+
+/* Save mouse start location when moving/resizing windows */
+static void set_move(win_t *win, ptr_t ptr, drag_t drag)
+{
+ printf("set_move: %d - %p@%d,%d\n",
+ drag, win, ptr.rx, ptr.ry);
+ move_mode = drag;
+ if (drag == move || drag == resize) {
+ searchl(wm_tag, win, NULL, &move_lcol, &move_lrow);
+ move_prev = ptr;
+ int midy = win->y + (win->h/2);
+ int midx = win->x + (win->w/2);
+ move_dir.v = ptr.ry < midy ? -1 : +1;
+ move_dir.h = ptr.rx < midx ? -1 : +1;
+ }
+}
+
+/* Print a text representation of the window layout
+ * Quite useful for debugging */
+static void print_txt(void)
+{
+ for (list_t *ltag = wm->tags; ltag; ltag = ltag->next) {
+ tag_t *tag = ltag->data;
+ printf("tag: <%-9p [%p->%p] >%-9p !%-9p - %d\n",
+ ltag->prev, ltag, ltag->data, ltag->next,
+ tag->dpy, tag->name);
+ for (list_t *ldpy = tag->dpys; ldpy; ldpy = ldpy->next) {
+ dpy_t *dpy = ldpy->data;
+ win_t *geom = dpy->geom;
+ printf(" dpy: <%-9p [%p->%p] >%-9p !%-9p - %d,%d %dx%d\n",
+ ldpy->prev, ldpy, ldpy->data, ldpy->next,
+ dpy->col, geom->x, geom->y, geom->h, geom->w);
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next) {
+ col_t *col = lcol->data;
+ printf(" col: <%-9p [%p->%p] >%-9p !%-9p - %dpx @ %d\n",
+ lcol->prev, lcol, lcol->data, lcol->next,
+ col->row, col->width, col->mode);
+ for (list_t *lrow = col->rows; lrow; lrow = lrow->next) {
+ row_t *row = lrow->data;
+ win_t *win = row->win;
+ printf(" win: <%-9p [%p>>%p] >%-9p !%-9p - %4dpx focus=%d%d\n",
+ lrow->prev, lrow, win, lrow->next,
+ win, win->h, col->row == row, wm_focus == win);
+ } } } }
+}
+
+/* Cleanly remove a window from a tag
+ * Determines the new focused row/col
+ * Prunes empty lists */
+static void cut_win(tag_t *tag, win_t *win)
+{
+ list_t *ldpy, *lcol, *lrow;
+ if (!searchl(tag, win, &ldpy, &lcol, &lrow))
+ return;
+ col_t *col = COL(lcol);
+ dpy_t *dpy = DPY(ldpy);
+
+ col->row = lrow->prev ? lrow->prev->data :
+ lrow->next ? lrow->next->data : NULL;
+ col->rows = list_remove(col->rows, lrow);
+
+ if (col->rows == NULL && (lcol->next || lcol->prev)) {
+ dpy->col = lcol->prev ? lcol->prev->data :
+ lcol->next ? lcol->next->data : NULL;
+ dpy->cols = list_remove(dpy->cols, lcol);
+ }
+}
+
+/* Insert a window at a given location
+ * The window is added immediately after the
+ * columns currently focused row */
+static void put_win(win_t *win, tag_t *tag, dpy_t *dpy, col_t *col)
+{
+ row_t *row = new0(row_t);
+ row->win = win;
+
+ if (col == NULL) {
+ col = new0(col_t);
+ dpy->cols = list_insert(dpy->cols, col);
+ }
+
+ int nrows = list_length(col->rows);
+ if (col->row) {
+ list_t *prev = list_find(col->rows, col->row);
+ list_insert_after(prev, row);
+ } else {
+ col->rows = list_insert(col->rows, row);
+ }
+ tag->dpy = dpy;
+ tag->dpy->col = col;
+ tag->dpy->col->row = row;
+
+ row->height = dpy->geom->h / MAX(nrows,1);
+ if (nrows == 0) {
+ int ncols = list_length(dpy->cols);
+ col->width = dpy->geom->w / MAX(ncols-1,1);
+ }
+}
+
+/* Move a window up, down, left, or right
+ * This handles moving with a column, between
+ * columns, and between multiple monitors. */
+static void shift_window(win_t *win, int col, int row)
+{
+ if (!win) return;
+ printf("shift_window: %p - %+d,%+d\n", win, col, row);
+ print_txt();
+ printf("shift_window: >>>\n");
+ list_t *ldpy, *lcol, *lrow;
+ if (!searchl(wm_tag, win, &ldpy, &lcol, &lrow))
+ return;
+ dpy_t *dpy = ldpy->data;
+ if (row != 0) {
+ /* Move with a column, just swap rows */
+ list_t *src = lrow, *dst = NULL;
+ if (row < 0) dst = src->prev;
+ if (row > 0) dst = src->next;
+ if (src && dst) {
+ printf("swap: %p <-> %p\n", src->data, dst->data);
+ row_t *tmp = src->data;
+ src->data = dst->data;
+ dst->data = tmp;
+ goto update;
+ }
+ } else {
+ /* Moving between columns */
+ int onlyrow = !lrow->prev && !lrow->next;
+ list_t *src = lcol, *dst = NULL;
+ if (col < 0) {
+ if (src->prev) {
+ /* Normal move between columns */
+ dst = src->prev;
+ } else if (!onlyrow) {
+ /* Create new column */
+ dpy->cols = list_insert(dpy->cols, new0(col_t));
+ dst = src->prev;
+ } else if (ldpy->prev) {
+ /* Move to next monitor */
+ dpy = ldpy->prev->data;
+ dst = list_last(dpy->cols);
+ } else {
+ /* We, shall, not, be,
+ * we shall not be moved */
+ return;
+ }
+ }
+ if (col > 0) {
+ if (src->next) {
+ dst = src->next;
+ } else if (!onlyrow) {
+ dpy->cols = list_append(dpy->cols, new0(col_t));
+ dst = src->next;
+ } else if (ldpy->next) {
+ dpy = ldpy->next->data;
+ dst = dpy->cols;
+ } else {
+ return;
+ }
+ }
+ cut_win(wm_tag, win);
+ put_win(win, wm_tag, dpy, dst ? dst->data : NULL);
+ goto update;
+ }
+update:
+ print_txt();
+ wm_update();
+}
+
+/* Get next/prev item, with wraparound */
+static list_t *get_next(list_t *list, int forward)
+{
+ list_t *next = forward ? list->next : list->prev;
+ if (next == NULL) {
+ next = list;
+ while ((list = forward ? next->prev : next->next))
+ next = list;
+ }
+ return next;
+}
+
+/* Move keyboard focus in a given direction */
+static void shift_focus(int cols, int rows)
+{
+ printf("shift_focus: %+d,%+d\n", cols, rows);
+ if (rows != 0 && wm_focus) {
+ /* Move focus up/down */
+ list_t *dpy, *col, *row;
+ if (!searchl(wm_tag, wm_focus, &dpy, &col, &row))
+ return;
+ row_t *next = get_next(row, rows > 0)->data;
+ set_focus(next->win);
+ if (COL(col)->mode != split)
+ wm_update();
+ }
+ if (cols != 0) {
+ /* Move focus left/right */
+ list_t *dpy, *col, *row, *ndpy, *ncol = NULL;
+ if (wm_focus) {
+ /* Currently focused on a window */
+ if (!searchl(wm_tag, wm_focus, &dpy, &col, &row))
+ return;
+ ncol = cols > 0 ? col->next : col->prev;
+ } else {
+ /* Currently focused on an empty display */
+ dpy = list_find(wm_tag->dpys, wm_dpy);
+ }
+ if (ncol == NULL) {
+ /* Moving focus to a different display */
+ ndpy = get_next(dpy, cols > 0);
+ ncol = cols > 0 ? DPY(ndpy)->cols :
+ list_last(DPY(ndpy)->cols);
+ wm_dpy = ndpy->data;
+ }
+ if (ncol && COL(ncol) && COL(ncol)->row)
+ set_focus(COL(ncol)->row->win);
+ else
+ sys_focus(wm->root);
+ }
+}
+
+/* Allocate a new tag */
+static tag_t *tag_new(list_t *screens, int name)
+{
+ tag_t *tag = new0(tag_t);
+ tag->name = name;
+ for (list_t *cur = screens; cur; cur = cur->next) {
+ dpy_t *dpy = new0(dpy_t);
+ dpy->geom = cur->data;
+ tag->dpys = list_append(tag->dpys, dpy);
+ }
+ tag->dpy = tag->dpys->data;
+ return tag;
+}
+
+/* Search for a tag
+ * If it does not exist it is based on the
+ * display geometry in wm->screens */
+static tag_t *tag_find(int name)
+{
+ tag_t *tag = NULL;
+ for (list_t *cur = wm->tags; cur; cur = cur->next)
+ if (name == TAG(cur)->name) {
+ tag = cur->data;
+ break;
+ }
+ if (!tag) {
+ tag = tag_new(wm->screens, name);
+ wm->tags = list_append(wm->tags, tag);
+ }
+ return tag;
+}
+
+/* Move the window from the current tag to the new tag
+ * Unlike wmii, only remove the current tag, not all tags */
+static void tag_set(win_t *win, int name)
+{
+ printf("tag_set: %p %d\n", win, name);
+ if (wm_tag->name == name)
+ return;
+ tag_t *tag = tag_find(name);
+ cut_win(wm_tag, win);
+ put_win(win, tag, tag->dpy, tag->dpy->col);
+ set_focus(wm_focus);
+}
+
+/* Switch to a different tag */
+static void tag_switch(int name)
+{
+ printf("tag_switch: %d\n", name);
+ if (wm_col == NULL || wm_row == NULL)
+ wm->tags = list_remove(wm->tags,
+ list_find(wm->tags, wm_tag));
+ wm_tag = tag_find(name);
+}
+
+/* Tile all windows in the given display
+ * This performs all the actual window tiling
+ * Currently supports split, stack and maximized modes */
+static void wm_update_dpy(dpy_t *dpy)
+{
+ int x=0, y=0; // Current window top-left position
+ int tx=0, ty=0; // Total size (sum of initial col widths and row heights w/o margin)
+ int mx=0, my=0; // Maximum usable size (screen size minus margins)
+ int sy=0; // Stack size (height of focused stack window)
+
+ /* Scale horizontally */
+ x = dpy->geom->x;
+ mx = dpy->geom->w - (list_length(dpy->cols)+1)*MARGIN;
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next)
+ tx += COL(lcol)->width;
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next)
+ COL(lcol)->width *= (float)mx / tx;
+
+ /* Scale each column vertically */
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next) {
+ col_t *col = lcol->data;
+ int nrows = list_length(col->rows);
+ ty = 0;
+ for (list_t *lrow = col->rows; lrow; lrow = lrow->next)
+ ty += ROW(lrow)->height;
+ y = dpy->geom->y;
+ my = dpy->geom->h - (MARGIN + (nrows-1)* MARGIN + MARGIN);
+ sy = dpy->geom->h - (MARGIN + (nrows-1)*(MARGIN/2) + MARGIN)
+ - (nrows-1)* STACK;
+ for (list_t *lrow = col->rows; lrow; lrow = lrow->next) {
+ win_t *win = ROW(lrow)->win;
+ win->h = ROW(lrow)->height;
+ int height = 0;
+ switch (col->mode) {
+ case split:
+ sys_move(win, x+MARGIN, y+MARGIN,
+ col->width, win->h * ((float)my / ty));
+ height = win->h;
+ y += height + MARGIN;
+ break;
+ case stack:
+ if (lrow->next && ROW(lrow->next)->win == col->row->win) {
+ /* Hack to prevent flashing */
+ win_t *next = ROW(lrow->next)->win;
+ sys_move(next, x+MARGIN, y+MARGIN+STACK+MARGIN/2,
+ col->width, sy);
+ }
+ height = win == col->row->win ? sy : STACK;
+ sys_move(win, x+MARGIN, y+MARGIN,
+ col->width, height);
+ y += height + (MARGIN/2);
+ break;
+ case max:
+ case tab:
+ sys_move(win, x+MARGIN, 0+MARGIN,
+ col->width, dpy->geom->h-2*MARGIN);
+ if (col->row->win == win)
+ sys_raise(win);
+ break;
+ }
+ ROW(lrow)->height = win->h;
+ }
+ x += col->width + MARGIN;
+ }
+}
+
+/*******************************
+ * Window management functions *
+ *******************************/
+void wm_update(void)
+{
+ /* Show/hide tags */
+ tag_foreach(wm_tag, dpy, col, row, win)
+ sys_show(win, st_show);
+ for (list_t *tag = wm ->tags; tag; tag = tag->next)
+ tag_foreach(TAG(tag), dpy, col, row, win)
+ if (tag->data != wm_tag)
+ sys_show(win, st_hide);
+
+ /* Refresh the display */
+ for (list_t *ldpy = wm_tag->dpys; ldpy; ldpy = ldpy->next)
+ wm_update_dpy(ldpy->data);
+ if (wm_focus)
+ set_focus(wm_focus);
+}
+
+int wm_handle_key(win_t *win, Key_t key, mod_t mod, ptr_t ptr)
+{
+ if (!win || win == wm_dpy->geom) return 0;
+ //printf("wm_handle_key: %p - %x %c%c%c%c%c\n", win, key,
+ // mod.up ? '^' : 'v',
+ // mod.alt ? 'a' : '-',
+ // mod.ctrl ? 'c' : '-',
+ // mod.shift ? 's' : '-',
+ // mod.win ? 'w' : '-');
+
+ /* Mouse movement */
+ if (key_mouse0 <= key && key <= key_mouse7) {
+ if (key == key_mouse1 && mod.MODKEY && !mod.up)
+ return set_move(win,ptr,move), 1;
+ if (key == key_mouse3 && mod.MODKEY && !mod.up)
+ return set_move(win,ptr,resize), 1;
+ if (move_mode != none && mod.up)
+ return set_move(win,ptr,none), 1;
+ if (key == key_mouse1 && !mod.up && win->h == STACK)
+ return wm_update(), 0;
+ return 0;
+ }
+
+ /* Only handle key-down */
+ if (mod.up)
+ return 0;
+
+ /* Misc */
+ if (mod.MODKEY) {
+#ifdef DEBUG
+ if (key == key_f1) return sys_raise(win), 1;
+ if (key == key_f2) return set_focus(win), 1;
+ if (key == key_f3) return sys_show(win, st_show), 1;
+ if (key == key_f4) return sys_show(win, st_hide), 1;
+#endif
+ if (key == key_f5) return wm_update(), 1;
+ if (key == key_f6) return print_txt(), 1;
+ }
+ if (key_mouse0 <= key && key <= key_mouse7)