/* * vim:ts=8:expandtab * * i3 - an improved dynamic tiling window manager * * (c) 2009 Michael Stapelberg and contributors * * See file LICENSE for license information. * */ #include #include #include #include #include #include #include #include "util.h" #include "data.h" #include "table.h" #include "layout.h" #include "i3.h" static bool focus_window_in_container(xcb_connection_t *connection, Container *container, direction_t direction) { /* If this container is empty, we’re done */ if (container->currently_focused == NULL) return false; Client *candidad; if (direction == D_UP) candidad = CIRCLEQ_PREV(container->currently_focused, clients); else if (direction == D_DOWN) candidad = CIRCLEQ_NEXT(container->currently_focused, clients); /* If we don’t have anything to select, we’re done */ if (candidad == CIRCLEQ_END(&(container->clients))) return false; /* Set focus if we could successfully move */ container->currently_focused = candidad; xcb_set_input_focus(connection, XCB_INPUT_FOCUS_NONE, candidad->child, XCB_CURRENT_TIME); render_layout(connection); return true; } static void focus_window(xcb_connection_t *connection, direction_t direction) { printf("focusing direction %d\n", direction); /* TODO: for horizontal default layout, this has to be expanded to LEFT/RIGHT */ if (direction == D_UP || direction == D_DOWN) { /* Let’s see if we can perform up/down focus in the current container */ Container *container = CUR_CELL; /* There always is a container. If not, current_col or current_row is wrong */ assert(container != NULL); if (focus_window_in_container(connection, container, direction)) return; } else if (direction == D_LEFT || direction == D_RIGHT) { if (direction == D_RIGHT && cell_exists(current_col+1, current_row)) current_col++; else if (direction == D_LEFT && cell_exists(current_col-1, current_row)) current_col--; else { printf("nah, not possible\n"); return; } if (CUR_CELL->currently_focused != NULL) { xcb_set_input_focus(connection, XCB_INPUT_FOCUS_NONE, CUR_CELL->currently_focused->child, XCB_CURRENT_TIME); render_layout(connection); } } else { printf("direction unhandled\n"); } } /* * Tries to move the window inside its current container. * * Returns true if the window could be moved, false otherwise. * */ static bool move_current_window_in_container(xcb_connection_t *connection, Client *client, direction_t direction) { Client *other = (direction == D_UP ? CIRCLEQ_PREV(client, clients) : CIRCLEQ_NEXT(client, clients)); if (other == CIRCLEQ_END(&(client->container->clients))) return false; printf("i can do that\n"); /* We can move the client inside its current container */ CIRCLEQ_REMOVE(&(client->container->clients), client, clients); if (direction == D_UP) CIRCLEQ_INSERT_BEFORE(&(client->container->clients), other, client, clients); else CIRCLEQ_INSERT_AFTER(&(client->container->clients), other, client, clients); render_layout(connection); return true; } /* * Moves the current window to the given direction, creating a column/row if * necessary * */ static void move_current_window(xcb_connection_t *connection, direction_t direction) { printf("moving window to direction %d\n", direction); /* Get current window */ Container *container = CUR_CELL, *new; /* There has to be a container, see focus_window() */ assert(container != NULL); /* If there is no window, we’re done */ if (container->currently_focused == NULL) return; /* As soon as the client is moved away, the next client in the old * container needs to get focus, if any. Therefore, we save it here. */ Client *current_client = container->currently_focused; Client *to_focus = CIRCLEQ_NEXT(current_client, clients); if (to_focus == CIRCLEQ_END(&(container->clients))) to_focus = NULL; switch (direction) { case D_LEFT: if (current_col == 0) return; new = CUR_TABLE[--current_col][current_row]; break; case D_RIGHT: if (current_col == (c_ws->cols-1)) expand_table_cols(c_ws); new = CUR_TABLE[++current_col][current_row]; break; case D_UP: /* TODO: if we’re at the up-most position, move the rest of the table down */ if (move_current_window_in_container(connection, current_client, D_UP) || current_row == 0) return; new = CUR_TABLE[current_col][--current_row]; break; case D_DOWN: if (move_current_window_in_container(connection, current_client, D_DOWN)) return; if (current_row == (c_ws->rows-1)) expand_table_rows(c_ws); new = CUR_TABLE[current_col][++current_row]; break; } /* Remove it from the old container and put it into the new one */ CIRCLEQ_REMOVE(&(container->clients), current_client, clients); CIRCLEQ_INSERT_TAIL(&(new->clients), current_client, clients); /* Update data structures */ current_client->container = new; container->currently_focused = to_focus; new->currently_focused = current_client; /* TODO: delete all empty columns/rows */ render_layout(connection); } /* * "Snaps" the current container (not possible for windows, because it works at table base) * to the given direction, that is, adjusts cellspan/rowspan * */ static void snap_current_container(xcb_connection_t *connection, direction_t direction) { printf("snapping container to direction %d\n", direction); Container *container = CUR_CELL; int i; assert(container != NULL); switch (direction) { case D_LEFT: /* Snap to the left is actually a move to the left and then a snap right */ move_current_window(connection, D_LEFT); snap_current_container(connection, D_RIGHT); return; case D_RIGHT: /* Check if the cell is used */ if (!cell_exists(container->col + 1, container->row) || CUR_TABLE[container->col+1][container->row]->currently_focused != NULL) { printf("cannot snap to right - the cell is already used\n"); return; } /* Check if there are other cells with rowspan, which are in our way. * If so, reduce their rowspan. */ for (i = container->row-1; i >= 0; i--) { printf("we got cell %d, %d with rowspan %d\n", container->col+1, i, CUR_TABLE[container->col+1][i]->rowspan); while ((CUR_TABLE[container->col+1][i]->rowspan-1) >= (container->row - i)) CUR_TABLE[container->col+1][i]->rowspan--; printf("new rowspan = %d\n", CUR_TABLE[container->col+1][i]->rowspan); } container->colspan++; break; case D_UP: move_current_window(connection, D_UP); snap_current_container(connection, D_DOWN); return; case D_DOWN: printf("snapping down\n"); if (!cell_exists(container->col, container->row+1) || CUR_TABLE[container->col][container->row+1]->currently_focused != NULL) { printf("cannot snap down - the cell is already used\n"); return; } for (i = container->col-1; i >= 0; i--) { printf("we got cell %d, %d with colspan %d\n", i, container->row+1, CUR_TABLE[i][container->row+1]->colspan); while ((CUR_TABLE[i][container->row+1]->colspan-1) >= (container->col - i)) CUR_TABLE[i][container->row+1]->colspan--; printf("new colspan = %d\n", CUR_TABLE[i][container->row+1]->colspan); } container->rowspan++; break; } render_layout(connection); } static void show_workspace(xcb_connection_t *conn, int workspace) { int cols, rows; Client *client; printf("show_workspace(%d)\n", workspace); xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root; /* Store current_row/current_col */ c_ws->current_row = current_row; c_ws->current_col = current_col; /* TODO: does grabbing the server actually bring us any (speed)advantages? */ //xcb_grab_server(conn); /* Unmap all clients */ for (cols = 0; cols < c_ws->cols; cols++) for (rows = 0; rows < c_ws->rows; rows++) { CIRCLEQ_FOREACH(client, &(c_ws->table[cols][rows]->clients), clients) xcb_unmap_window(conn, client->frame); } c_ws = &workspaces[workspace-1]; current_row = c_ws->current_row; current_col = c_ws->current_col; printf("new current row = %d, current col = %d\n", current_row, current_col); /* Map all clients on the new workspace */ for (cols = 0; cols < c_ws->cols; cols++) for (rows = 0; rows < c_ws->rows; rows++) { CIRCLEQ_FOREACH(client, &(c_ws->table[cols][rows]->clients), clients) xcb_map_window(conn, client->frame); } /* Restore focus on the new workspace */ if (CUR_CELL->currently_focused != NULL) xcb_set_input_focus(conn, XCB_INPUT_FOCUS_NONE, CUR_CELL->currently_focused->child, XCB_CURRENT_TIME); else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_NONE, root, XCB_CURRENT_TIME); //xcb_ungrab_server(conn); render_layout(conn); } /* * Parses a command, see file CMDMODE for more information * */ void parse_command(xcb_connection_t *conn, const char *command) { printf("--- parsing command \"%s\" ---\n", command); /* Hmm, just to be sure */ if (command[0] == '\0') return; /* Is it an ? */ if (strncmp(command, "exec ", strlen("exec ")) == 0) { printf("starting \"%s\"\n", command + strlen("exec ")); start_application(command+strlen("exec ")); return; } /* Is it a ? */ if (command[0] == 'w') { /* TODO: implement */ printf("not yet implemented.\n"); return; } /* It's a normal */ int times; char *rest = NULL; enum { ACTION_FOCUS, ACTION_MOVE, ACTION_SNAP } action = ACTION_FOCUS; direction_t direction; times = strtol(command, &rest, 10); if (rest == NULL) { printf("Invalid command: Consists only of a movement\n"); return; } if (*rest == 'm' || *rest == 's') { action = (*rest == 'm' ? ACTION_MOVE : ACTION_SNAP); rest++; } if (*rest == '\0') { /* No rest? This was a tag number, not a times specification */ show_workspace(conn, times); return; } /* Now perform action to */ while (*rest != '\0') { if (*rest == 'h') direction = D_LEFT; else if (*rest == 'j') direction = D_DOWN; else if (*rest == 'k') direction = D_UP; else if (*rest == 'l') direction = D_RIGHT; else { printf("unknown direction: %c\n", *rest); return; } if (action == ACTION_FOCUS) focus_window(conn, direction); else if (action == ACTION_MOVE) move_current_window(conn, direction); else if (action == ACTION_SNAP) snap_current_container(conn, direction); rest++; } printf("--- done ---\n"); }