1671 lines
55 KiB
C
1671 lines
55 KiB
C
#undef I3__FILE__
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#define I3__FILE__ "con.c"
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/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
|
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*
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* con.c: Functions which deal with containers directly (creating containers,
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* searching containers, getting specific properties from containers,
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* …).
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*
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*/
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#include "all.h"
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char *colors[] = {
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"#ff0000",
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"#00FF00",
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"#0000FF",
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"#ff00ff",
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"#00ffff",
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"#ffff00",
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"#aa0000",
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"#00aa00",
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"#0000aa",
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"#aa00aa"
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};
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static void con_on_remove_child(Con *con);
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/*
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* force parent split containers to be redrawn
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*
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*/
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static void con_force_split_parents_redraw(Con *con) {
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Con *parent = con;
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while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
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if (!con_is_leaf(parent))
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FREE(parent->deco_render_params);
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parent = parent->parent;
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}
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}
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/*
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* Create a new container (and attach it to the given parent, if not NULL).
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* This function only initializes the data structures.
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*
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*/
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Con *con_new_skeleton(Con *parent, i3Window *window) {
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Con *new = scalloc(sizeof(Con));
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new->on_remove_child = con_on_remove_child;
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TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
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new->aspect_ratio = 0.0;
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new->type = CT_CON;
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new->window = window;
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new->border_style = config.default_border;
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new->current_border_width = -1;
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if (window)
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new->depth = window->depth;
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else
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new->depth = XCB_COPY_FROM_PARENT;
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static int cnt = 0;
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DLOG("opening window %d\n", cnt);
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/* TODO: remove window coloring after test-phase */
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DLOG("color %s\n", colors[cnt]);
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new->name = strdup(colors[cnt]);
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//uint32_t cp = get_colorpixel(colors[cnt]);
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cnt++;
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if ((cnt % (sizeof(colors) / sizeof(char*))) == 0)
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cnt = 0;
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TAILQ_INIT(&(new->floating_head));
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TAILQ_INIT(&(new->nodes_head));
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TAILQ_INIT(&(new->focus_head));
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TAILQ_INIT(&(new->swallow_head));
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if (parent != NULL)
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con_attach(new, parent, false);
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return new;
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}
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/* A wrapper for con_new_skeleton, to retain the old con_new behaviour
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*
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*/
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Con *con_new(Con *parent, i3Window *window) {
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Con *new = con_new_skeleton(parent, window);
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x_con_init(new, new->depth);
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return new;
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}
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/*
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* Attaches the given container to the given parent. This happens when moving
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* a container or when inserting a new container at a specific place in the
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* tree.
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*
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* ignore_focus is to just insert the Con at the end (useful when creating a
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* new split container *around* some containers, that is, detaching and
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* attaching them in order without wanting to mess with the focus in between).
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*
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*/
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void con_attach(Con *con, Con *parent, bool ignore_focus) {
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con->parent = parent;
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Con *loop;
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Con *current = NULL;
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struct nodes_head *nodes_head = &(parent->nodes_head);
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struct focus_head *focus_head = &(parent->focus_head);
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/* Workspaces are handled differently: they need to be inserted at the
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* right position. */
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if (con->type == CT_WORKSPACE) {
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DLOG("it's a workspace. num = %d\n", con->num);
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if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
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TAILQ_INSERT_TAIL(nodes_head, con, nodes);
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} else {
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current = TAILQ_FIRST(nodes_head);
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if (con->num < current->num) {
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/* we need to insert the container at the beginning */
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TAILQ_INSERT_HEAD(nodes_head, con, nodes);
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} else {
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while (current->num != -1 && con->num > current->num) {
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current = TAILQ_NEXT(current, nodes);
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if (current == TAILQ_END(nodes_head)) {
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current = NULL;
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break;
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}
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}
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/* we need to insert con after current, if current is not NULL */
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if (current)
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TAILQ_INSERT_BEFORE(current, con, nodes);
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else TAILQ_INSERT_TAIL(nodes_head, con, nodes);
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}
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}
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goto add_to_focus_head;
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}
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if (con->type == CT_FLOATING_CON) {
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DLOG("Inserting into floating containers\n");
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TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
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} else {
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if (!ignore_focus) {
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/* Get the first tiling container in focus stack */
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TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
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if (loop->type == CT_FLOATING_CON)
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continue;
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current = loop;
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break;
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}
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}
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/* When the container is not a split container (but contains a window)
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* and is attached to a workspace, we check if the user configured a
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* workspace_layout. This is done in workspace_attach_to, which will
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* provide us with the container to which we should attach (either the
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* workspace or a new split container with the configured
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* workspace_layout).
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*/
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if (con->window != NULL &&
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parent->type == CT_WORKSPACE &&
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parent->workspace_layout != L_DEFAULT) {
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DLOG("Parent is a workspace. Applying default layout...\n");
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Con *target = workspace_attach_to(parent);
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/* Attach the original con to this new split con instead */
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nodes_head = &(target->nodes_head);
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focus_head = &(target->focus_head);
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con->parent = target;
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current = NULL;
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DLOG("done\n");
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}
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/* Insert the container after the tiling container, if found.
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* When adding to a CT_OUTPUT, just append one after another. */
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if (current && parent->type != CT_OUTPUT) {
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DLOG("Inserting con = %p after last focused tiling con %p\n",
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con, current);
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TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
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} else TAILQ_INSERT_TAIL(nodes_head, con, nodes);
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}
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add_to_focus_head:
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/* We insert to the TAIL because con_focus() will correct this.
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* This way, we have the option to insert Cons without having
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* to focus them. */
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TAILQ_INSERT_TAIL(focus_head, con, focused);
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con_force_split_parents_redraw(con);
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}
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/*
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* Detaches the given container from its current parent
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*
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*/
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void con_detach(Con *con) {
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con_force_split_parents_redraw(con);
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if (con->type == CT_FLOATING_CON) {
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TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
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TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
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} else {
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TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
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TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
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}
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}
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/*
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* Sets input focus to the given container. Will be updated in X11 in the next
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* run of x_push_changes().
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*
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*/
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void con_focus(Con *con) {
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assert(con != NULL);
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DLOG("con_focus = %p\n", con);
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/* 1: set focused-pointer to the new con */
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/* 2: exchange the position of the container in focus stack of the parent all the way up */
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TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
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TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
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if (con->parent->parent != NULL)
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con_focus(con->parent);
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focused = con;
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/* We can't blindly reset non-leaf containers since they might have
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* other urgent children. Therefore we only reset leafs and propagate
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* the changes upwards via con_update_parents_urgency() which does proper
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* checks before resetting the urgency.
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*/
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if (con->urgent && con_is_leaf(con)) {
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con->urgent = false;
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con_update_parents_urgency(con);
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workspace_update_urgent_flag(con_get_workspace(con));
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}
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}
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/*
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* Returns true when this node is a leaf node (has no children)
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*
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*/
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bool con_is_leaf(Con *con) {
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return TAILQ_EMPTY(&(con->nodes_head));
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}
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/*
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* Returns true when this con is a leaf node with a managed X11 window (e.g.,
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* excluding dock containers)
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*/
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bool con_has_managed_window(Con *con) {
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return (con != NULL
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&& con->window != NULL
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&& con->window->id != XCB_WINDOW_NONE
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&& con_get_workspace(con) != NULL);
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}
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/**
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* Returns true if this node has regular or floating children.
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*
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*/
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bool con_has_children(Con *con) {
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return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
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}
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/*
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* Returns true if a container should be considered split.
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*
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*/
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bool con_is_split(Con *con) {
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if (con_is_leaf(con))
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return false;
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switch (con->layout) {
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case L_DOCKAREA:
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case L_OUTPUT:
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return false;
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default:
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return true;
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}
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}
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/*
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* Returns true if this node accepts a window (if the node swallows windows,
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* it might already have swallowed enough and cannot hold any more).
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*
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*/
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bool con_accepts_window(Con *con) {
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/* 1: workspaces never accept direct windows */
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if (con->type == CT_WORKSPACE)
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return false;
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if (con_is_split(con)) {
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DLOG("container %p does not accept windows, it is a split container.\n", con);
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return false;
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}
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/* TODO: if this is a swallowing container, we need to check its max_clients */
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return (con->window == NULL);
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}
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/*
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* Gets the output container (first container with CT_OUTPUT in hierarchy) this
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* node is on.
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*
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*/
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Con *con_get_output(Con *con) {
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Con *result = con;
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while (result != NULL && result->type != CT_OUTPUT)
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result = result->parent;
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/* We must be able to get an output because focus can never be set higher
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* in the tree (root node cannot be focused). */
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assert(result != NULL);
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return result;
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}
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|
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/*
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* Gets the workspace container this node is on.
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*
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*/
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Con *con_get_workspace(Con *con) {
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Con *result = con;
|
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while (result != NULL && result->type != CT_WORKSPACE)
|
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result = result->parent;
|
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return result;
|
||
}
|
||
|
||
/*
|
||
* Searches parenst of the given 'con' until it reaches one with the specified
|
||
* 'orientation'. Aborts when it comes across a floating_con.
|
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*
|
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*/
|
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Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
|
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DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
|
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Con *parent = con->parent;
|
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if (parent->type == CT_FLOATING_CON)
|
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return NULL;
|
||
while (con_orientation(parent) != orientation) {
|
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DLOG("Need to go one level further up\n");
|
||
parent = parent->parent;
|
||
/* Abort when we reach a floating con, or an output con */
|
||
if (parent &&
|
||
(parent->type == CT_FLOATING_CON ||
|
||
parent->type == CT_OUTPUT ||
|
||
(parent->parent && parent->parent->type == CT_OUTPUT)))
|
||
parent = NULL;
|
||
if (parent == NULL)
|
||
break;
|
||
}
|
||
DLOG("Result: %p\n", parent);
|
||
return parent;
|
||
}
|
||
|
||
/*
|
||
* helper data structure for the breadth-first-search in
|
||
* con_get_fullscreen_con()
|
||
*
|
||
*/
|
||
struct bfs_entry {
|
||
Con *con;
|
||
|
||
TAILQ_ENTRY(bfs_entry) entries;
|
||
};
|
||
|
||
/*
|
||
* Returns the first fullscreen node below this node.
|
||
*
|
||
*/
|
||
Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
|
||
Con *current, *child;
|
||
|
||
/* TODO: is breadth-first-search really appropriate? (check as soon as
|
||
* fullscreen levels and fullscreen for containers is implemented) */
|
||
TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
|
||
struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
|
||
entry->con = con;
|
||
TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
|
||
|
||
while (!TAILQ_EMPTY(&bfs_head)) {
|
||
entry = TAILQ_FIRST(&bfs_head);
|
||
current = entry->con;
|
||
if (current != con && current->fullscreen_mode == fullscreen_mode) {
|
||
/* empty the queue */
|
||
while (!TAILQ_EMPTY(&bfs_head)) {
|
||
entry = TAILQ_FIRST(&bfs_head);
|
||
TAILQ_REMOVE(&bfs_head, entry, entries);
|
||
free(entry);
|
||
}
|
||
return current;
|
||
}
|
||
|
||
TAILQ_REMOVE(&bfs_head, entry, entries);
|
||
free(entry);
|
||
|
||
TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
|
||
entry = smalloc(sizeof(struct bfs_entry));
|
||
entry->con = child;
|
||
TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
|
||
}
|
||
|
||
TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
|
||
entry = smalloc(sizeof(struct bfs_entry));
|
||
entry->con = child;
|
||
TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* Returns true if the container is internal, such as __i3_scratch
|
||
*
|
||
*/
|
||
bool con_is_internal(Con *con) {
|
||
return (con->name[0] == '_' && con->name[1] == '_');
|
||
}
|
||
|
||
/*
|
||
* Returns true if the node is floating.
|
||
*
|
||
*/
|
||
bool con_is_floating(Con *con) {
|
||
assert(con != NULL);
|
||
DLOG("checking if con %p is floating\n", con);
|
||
return (con->floating >= FLOATING_AUTO_ON);
|
||
}
|
||
|
||
/*
|
||
* Checks if the given container is either floating or inside some floating
|
||
* container. It returns the FLOATING_CON container.
|
||
*
|
||
*/
|
||
Con *con_inside_floating(Con *con) {
|
||
assert(con != NULL);
|
||
if (con->type == CT_FLOATING_CON)
|
||
return con;
|
||
|
||
if (con->floating >= FLOATING_AUTO_ON)
|
||
return con->parent;
|
||
|
||
if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
|
||
return NULL;
|
||
|
||
return con_inside_floating(con->parent);
|
||
}
|
||
|
||
/*
|
||
* Checks if the given container is inside a focused container.
|
||
*
|
||
*/
|
||
bool con_inside_focused(Con *con) {
|
||
if (con == focused)
|
||
return true;
|
||
if (!con->parent)
|
||
return false;
|
||
return con_inside_focused(con->parent);
|
||
}
|
||
|
||
/*
|
||
* Returns the container with the given client window ID or NULL if no such
|
||
* container exists.
|
||
*
|
||
*/
|
||
Con *con_by_window_id(xcb_window_t window) {
|
||
Con *con;
|
||
TAILQ_FOREACH(con, &all_cons, all_cons)
|
||
if (con->window != NULL && con->window->id == window)
|
||
return con;
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Returns the container with the given frame ID or NULL if no such container
|
||
* exists.
|
||
*
|
||
*/
|
||
Con *con_by_frame_id(xcb_window_t frame) {
|
||
Con *con;
|
||
TAILQ_FOREACH(con, &all_cons, all_cons)
|
||
if (con->frame == frame)
|
||
return con;
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Returns the first container below 'con' which wants to swallow this window
|
||
* TODO: priority
|
||
*
|
||
*/
|
||
Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
|
||
Con *child;
|
||
Match *match;
|
||
//DLOG("searching con for window %p starting at con %p\n", window, con);
|
||
//DLOG("class == %s\n", window->class_class);
|
||
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
TAILQ_FOREACH(match, &(child->swallow_head), matches) {
|
||
if (!match_matches_window(match, window))
|
||
continue;
|
||
if (store_match != NULL)
|
||
*store_match = match;
|
||
return child;
|
||
}
|
||
Con *result = con_for_window(child, window, store_match);
|
||
if (result != NULL)
|
||
return result;
|
||
}
|
||
|
||
TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
|
||
TAILQ_FOREACH(match, &(child->swallow_head), matches) {
|
||
if (!match_matches_window(match, window))
|
||
continue;
|
||
if (store_match != NULL)
|
||
*store_match = match;
|
||
return child;
|
||
}
|
||
Con *result = con_for_window(child, window, store_match);
|
||
if (result != NULL)
|
||
return result;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Returns the number of children of this container.
|
||
*
|
||
*/
|
||
int con_num_children(Con *con) {
|
||
Con *child;
|
||
int children = 0;
|
||
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes)
|
||
children++;
|
||
|
||
return children;
|
||
}
|
||
|
||
/*
|
||
* Updates the percent attribute of the children of the given container. This
|
||
* function needs to be called when a window is added or removed from a
|
||
* container.
|
||
*
|
||
*/
|
||
void con_fix_percent(Con *con) {
|
||
Con *child;
|
||
int children = con_num_children(con);
|
||
|
||
// calculate how much we have distributed and how many containers
|
||
// with a percentage set we have
|
||
double total = 0.0;
|
||
int children_with_percent = 0;
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
if (child->percent > 0.0) {
|
||
total += child->percent;
|
||
++children_with_percent;
|
||
}
|
||
}
|
||
|
||
// if there were children without a percentage set, set to a value that
|
||
// will make those children proportional to all others
|
||
if (children_with_percent != children) {
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
if (child->percent <= 0.0) {
|
||
if (children_with_percent == 0)
|
||
total += (child->percent = 1.0);
|
||
else total += (child->percent = total / children_with_percent);
|
||
}
|
||
}
|
||
}
|
||
|
||
// if we got a zero, just distribute the space equally, otherwise
|
||
// distribute according to the proportions we got
|
||
if (total == 0.0) {
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes)
|
||
child->percent = 1.0 / children;
|
||
} else if (total != 1.0) {
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes)
|
||
child->percent /= total;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Toggles fullscreen mode for the given container. If there already is a
|
||
* fullscreen container on this workspace, fullscreen will be disabled and then
|
||
* enabled for the container the user wants to have in fullscreen mode.
|
||
*
|
||
*/
|
||
void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
|
||
Con *workspace, *fullscreen;
|
||
|
||
if (con->type == CT_WORKSPACE) {
|
||
DLOG("You cannot make a workspace fullscreen.\n");
|
||
return;
|
||
}
|
||
|
||
DLOG("toggling fullscreen for %p / %s\n", con, con->name);
|
||
if (con->fullscreen_mode == CF_NONE) {
|
||
/* 1: check if there already is a fullscreen con */
|
||
if (fullscreen_mode == CF_GLOBAL)
|
||
fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
|
||
else {
|
||
workspace = con_get_workspace(con);
|
||
fullscreen = con_get_fullscreen_con(workspace, CF_OUTPUT);
|
||
}
|
||
if (fullscreen != NULL) {
|
||
/* Disable fullscreen for the currently fullscreened
|
||
* container and enable it for the one the user wants
|
||
* to have in fullscreen mode. */
|
||
LOG("Disabling fullscreen for (%p/%s) upon user request\n",
|
||
fullscreen, fullscreen->name);
|
||
fullscreen->fullscreen_mode = CF_NONE;
|
||
}
|
||
|
||
/* 2: enable fullscreen */
|
||
con->fullscreen_mode = fullscreen_mode;
|
||
} else {
|
||
/* 1: disable fullscreen */
|
||
con->fullscreen_mode = CF_NONE;
|
||
}
|
||
|
||
DLOG("mode now: %d\n", con->fullscreen_mode);
|
||
|
||
/* Send an ipc window "fullscreen_mode" event */
|
||
ipc_send_window_event("fullscreen_mode", con);
|
||
|
||
/* update _NET_WM_STATE if this container has a window */
|
||
/* TODO: when a window is assigned to a container which is already
|
||
* fullscreened, this state needs to be pushed to the client, too */
|
||
if (con->window == NULL)
|
||
return;
|
||
|
||
uint32_t values[1];
|
||
unsigned int num = 0;
|
||
|
||
if (con->fullscreen_mode != CF_NONE)
|
||
values[num++] = A__NET_WM_STATE_FULLSCREEN;
|
||
|
||
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
|
||
A__NET_WM_STATE, XCB_ATOM_ATOM, 32, num, values);
|
||
}
|
||
|
||
/*
|
||
* Moves the given container to the currently focused container on the given
|
||
* workspace.
|
||
*
|
||
* The fix_coordinates flag will translate the current coordinates (offset from
|
||
* the monitor position basically) to appropriate coordinates on the
|
||
* destination workspace.
|
||
* Not enabling this behaviour comes in handy when this function gets called by
|
||
* floating_maybe_reassign_ws, which will only "move" a floating window when it
|
||
* *already* changed its coordinates to a different output.
|
||
*
|
||
* The dont_warp flag disables pointer warping and will be set when this
|
||
* function is called while dragging a floating window.
|
||
*
|
||
* TODO: is there a better place for this function?
|
||
*
|
||
*/
|
||
void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp) {
|
||
/* Prevent moving if this would violate the fullscreen focus restrictions. */
|
||
if (!con_fullscreen_permits_focusing(workspace)) {
|
||
LOG("Cannot move out of a fullscreen container");
|
||
return;
|
||
}
|
||
|
||
if (con_is_floating(con)) {
|
||
DLOG("Using FLOATINGCON instead\n");
|
||
con = con->parent;
|
||
}
|
||
|
||
Con *source_ws = con_get_workspace(con);
|
||
if (workspace == source_ws) {
|
||
DLOG("Not moving, already there\n");
|
||
return;
|
||
}
|
||
|
||
if (con->type == CT_WORKSPACE) {
|
||
/* Re-parent all of the old workspace's floating windows. */
|
||
Con *child;
|
||
while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
|
||
child = TAILQ_FIRST(&(source_ws->floating_head));
|
||
con_move_to_workspace(child, workspace, true, true);
|
||
}
|
||
|
||
/* If there are no non-floating children, ignore the workspace. */
|
||
if (con_is_leaf(con))
|
||
return;
|
||
|
||
con = workspace_encapsulate(con);
|
||
if (con == NULL) {
|
||
ELOG("Workspace failed to move its contents into a container!\n");
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* Save the current workspace. So we can call workspace_show() by the end
|
||
* of this function. */
|
||
Con *current_ws = con_get_workspace(focused);
|
||
|
||
Con *source_output = con_get_output(con),
|
||
*dest_output = con_get_output(workspace);
|
||
|
||
/* 1: save the container which is going to be focused after the current
|
||
* container is moved away */
|
||
Con *focus_next = con_next_focused(con);
|
||
|
||
/* 2: get the focused container of this workspace */
|
||
Con *next = con_descend_focused(workspace);
|
||
|
||
/* 3: we go up one level, but only when next is a normal container */
|
||
if (next->type != CT_WORKSPACE) {
|
||
DLOG("next originally = %p / %s / type %d\n", next, next->name, next->type);
|
||
next = next->parent;
|
||
}
|
||
|
||
/* 4: if the target container is floating, we get the workspace instead.
|
||
* Only tiling windows need to get inserted next to the current container.
|
||
* */
|
||
Con *floatingcon = con_inside_floating(next);
|
||
if (floatingcon != NULL) {
|
||
DLOG("floatingcon, going up even further\n");
|
||
next = floatingcon->parent;
|
||
}
|
||
|
||
if (con->type == CT_FLOATING_CON) {
|
||
Con *ws = con_get_workspace(next);
|
||
DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
|
||
next = ws;
|
||
}
|
||
|
||
if (source_output != dest_output) {
|
||
/* Take the relative coordinates of the current output, then add them
|
||
* to the coordinate space of the correct output */
|
||
if (fix_coordinates && con->type == CT_FLOATING_CON) {
|
||
floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
|
||
} else DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
|
||
|
||
/* If moving to a visible workspace, call show so it can be considered
|
||
* focused. Must do before attaching because workspace_show checks to see
|
||
* if focused container is in its area. */
|
||
if (workspace_is_visible(workspace)) {
|
||
workspace_show(workspace);
|
||
|
||
/* Don’t warp if told so (when dragging floating windows with the
|
||
* mouse for example) */
|
||
if (dont_warp)
|
||
x_set_warp_to(NULL);
|
||
else
|
||
x_set_warp_to(&(con->rect));
|
||
}
|
||
}
|
||
|
||
/* If moving a fullscreen container and the destination already has a
|
||
* fullscreen window on it, un-fullscreen the target's fullscreen con. */
|
||
Con *fullscreen = con_get_fullscreen_con(workspace, CF_OUTPUT);
|
||
if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
|
||
con_toggle_fullscreen(fullscreen, CF_OUTPUT);
|
||
fullscreen = NULL;
|
||
}
|
||
|
||
DLOG("Re-attaching container to %p / %s\n", next, next->name);
|
||
/* 5: re-attach the con to the parent of this focused container */
|
||
Con *parent = con->parent;
|
||
con_detach(con);
|
||
con_attach(con, next, false);
|
||
|
||
/* 6: fix the percentages */
|
||
con_fix_percent(parent);
|
||
con->percent = 0.0;
|
||
con_fix_percent(next);
|
||
|
||
/* 7: focus the con on the target workspace, but only within that
|
||
* workspace, that is, don’t move focus away if the target workspace is
|
||
* invisible.
|
||
* We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
|
||
* we don’t focus when there is a fullscreen con on that workspace. */
|
||
if (!con_is_internal(workspace) && !fullscreen) {
|
||
/* We need to save the focused workspace on the output in case the
|
||
* new workspace is hidden and it's necessary to immediately switch
|
||
* back to the originally-focused workspace. */
|
||
Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
|
||
con_focus(con_descend_focused(con));
|
||
|
||
/* Restore focus if the output's focused workspace has changed. */
|
||
if (con_get_workspace(focused) != old_focus)
|
||
con_focus(old_focus);
|
||
}
|
||
|
||
/* 8: when moving to another workspace, we leave the focus on the current
|
||
* workspace. (see also #809) */
|
||
|
||
/* Descend focus stack in case focus_next is a workspace which can
|
||
* occur if we move to the same workspace. Also show current workspace
|
||
* to ensure it is focused. */
|
||
workspace_show(current_ws);
|
||
|
||
/* Set focus only if con was on current workspace before moving.
|
||
* Otherwise we would give focus to some window on different workspace. */
|
||
if (source_ws == current_ws)
|
||
con_focus(con_descend_focused(focus_next));
|
||
|
||
/* If anything within the container is associated with a startup sequence,
|
||
* delete it so child windows won't be created on the old workspace. */
|
||
struct Startup_Sequence *sequence;
|
||
xcb_get_property_cookie_t cookie;
|
||
xcb_get_property_reply_t *startup_id_reply;
|
||
|
||
if (!con_is_leaf(con)) {
|
||
Con *child;
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
if (!child->window)
|
||
continue;
|
||
|
||
cookie = xcb_get_property(conn, false, child->window->id,
|
||
A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
|
||
startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
|
||
|
||
sequence = startup_sequence_get(child->window, startup_id_reply, true);
|
||
if (sequence != NULL)
|
||
startup_sequence_delete(sequence);
|
||
}
|
||
}
|
||
|
||
if (con->window) {
|
||
cookie = xcb_get_property(conn, false, con->window->id,
|
||
A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
|
||
startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
|
||
|
||
sequence = startup_sequence_get(con->window, startup_id_reply, true);
|
||
if (sequence != NULL)
|
||
startup_sequence_delete(sequence);
|
||
}
|
||
|
||
CALL(parent, on_remove_child);
|
||
}
|
||
|
||
/*
|
||
* Returns the orientation of the given container (for stacked containers,
|
||
* vertical orientation is used regardless of the actual orientation of the
|
||
* container).
|
||
*
|
||
*/
|
||
orientation_t con_orientation(Con *con) {
|
||
switch (con->layout) {
|
||
case L_SPLITV:
|
||
/* stacking containers behave like they are in vertical orientation */
|
||
case L_STACKED:
|
||
return VERT;
|
||
|
||
case L_SPLITH:
|
||
/* tabbed containers behave like they are in vertical orientation */
|
||
case L_TABBED:
|
||
return HORIZ;
|
||
|
||
case L_DEFAULT:
|
||
DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
|
||
assert(false);
|
||
return HORIZ;
|
||
|
||
case L_DOCKAREA:
|
||
case L_OUTPUT:
|
||
DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
|
||
assert(false);
|
||
return HORIZ;
|
||
|
||
default:
|
||
DLOG("con_orientation() ran into default\n");
|
||
assert(false);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Returns the container which will be focused next when the given container
|
||
* is not available anymore. Called in tree_close and con_move_to_workspace
|
||
* to properly restore focus.
|
||
*
|
||
*/
|
||
Con *con_next_focused(Con *con) {
|
||
Con *next;
|
||
/* floating containers are attached to a workspace, so we focus either the
|
||
* next floating container (if any) or the workspace itself. */
|
||
if (con->type == CT_FLOATING_CON) {
|
||
DLOG("selecting next for CT_FLOATING_CON\n");
|
||
next = TAILQ_NEXT(con, floating_windows);
|
||
DLOG("next = %p\n", next);
|
||
if (!next) {
|
||
next = TAILQ_PREV(con, floating_head, floating_windows);
|
||
DLOG("using prev, next = %p\n", next);
|
||
}
|
||
if (!next) {
|
||
Con *ws = con_get_workspace(con);
|
||
next = ws;
|
||
DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
|
||
while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
|
||
next = TAILQ_FIRST(&(next->focus_head));
|
||
if (next == con) {
|
||
DLOG("skipping container itself, we want the next client\n");
|
||
next = TAILQ_NEXT(next, focused);
|
||
}
|
||
}
|
||
if (next == TAILQ_END(&(ws->focus_head))) {
|
||
DLOG("Focus list empty, returning ws\n");
|
||
next = ws;
|
||
}
|
||
} else {
|
||
/* Instead of returning the next CT_FLOATING_CON, we descend it to
|
||
* get an actual window to focus. */
|
||
next = con_descend_focused(next);
|
||
}
|
||
return next;
|
||
}
|
||
|
||
/* dock clients cannot be focused, so we focus the workspace instead */
|
||
if (con->parent->type == CT_DOCKAREA) {
|
||
DLOG("selecting workspace for dock client\n");
|
||
return con_descend_focused(output_get_content(con->parent->parent));
|
||
}
|
||
|
||
/* if 'con' is not the first entry in the focus stack, use the first one as
|
||
* it’s currently focused already */
|
||
Con *first = TAILQ_FIRST(&(con->parent->focus_head));
|
||
if (first != con) {
|
||
DLOG("Using first entry %p\n", first);
|
||
next = first;
|
||
} else {
|
||
/* try to focus the next container on the same level as this one or fall
|
||
* back to its parent */
|
||
if (!(next = TAILQ_NEXT(con, focused)))
|
||
next = con->parent;
|
||
}
|
||
|
||
/* now go down the focus stack as far as
|
||
* possible, excluding the current container */
|
||
while (!TAILQ_EMPTY(&(next->focus_head)) &&
|
||
TAILQ_FIRST(&(next->focus_head)) != con)
|
||
next = TAILQ_FIRST(&(next->focus_head));
|
||
|
||
return next;
|
||
}
|
||
|
||
/*
|
||
* Get the next/previous container in the specified orientation. This may
|
||
* travel up until it finds a container with suitable orientation.
|
||
*
|
||
*/
|
||
Con *con_get_next(Con *con, char way, orientation_t orientation) {
|
||
DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
|
||
/* 1: get the first parent with the same orientation */
|
||
Con *cur = con;
|
||
while (con_orientation(cur->parent) != orientation) {
|
||
DLOG("need to go one level further up\n");
|
||
if (cur->parent->type == CT_WORKSPACE) {
|
||
LOG("that's a workspace, we can't go further up\n");
|
||
return NULL;
|
||
}
|
||
cur = cur->parent;
|
||
}
|
||
|
||
/* 2: chose next (or previous) */
|
||
Con *next;
|
||
if (way == 'n') {
|
||
next = TAILQ_NEXT(cur, nodes);
|
||
/* if we are at the end of the list, we need to wrap */
|
||
if (next == TAILQ_END(&(parent->nodes_head)))
|
||
return NULL;
|
||
} else {
|
||
next = TAILQ_PREV(cur, nodes_head, nodes);
|
||
/* if we are at the end of the list, we need to wrap */
|
||
if (next == TAILQ_END(&(cur->nodes_head)))
|
||
return NULL;
|
||
}
|
||
DLOG("next = %p\n", next);
|
||
|
||
return next;
|
||
}
|
||
|
||
/*
|
||
* Returns the focused con inside this client, descending the tree as far as
|
||
* possible. This comes in handy when attaching a con to a workspace at the
|
||
* currently focused position, for example.
|
||
*
|
||
*/
|
||
Con *con_descend_focused(Con *con) {
|
||
Con *next = con;
|
||
while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
|
||
next = TAILQ_FIRST(&(next->focus_head));
|
||
return next;
|
||
}
|
||
|
||
/*
|
||
* Returns the focused con inside this client, descending the tree as far as
|
||
* possible. This comes in handy when attaching a con to a workspace at the
|
||
* currently focused position, for example.
|
||
*
|
||
* Works like con_descend_focused but considers only tiling cons.
|
||
*
|
||
*/
|
||
Con *con_descend_tiling_focused(Con *con) {
|
||
Con *next = con;
|
||
Con *before;
|
||
Con *child;
|
||
if (next == focused)
|
||
return next;
|
||
do {
|
||
before = next;
|
||
TAILQ_FOREACH(child, &(next->focus_head), focused) {
|
||
if (child->type == CT_FLOATING_CON)
|
||
continue;
|
||
|
||
next = child;
|
||
break;
|
||
}
|
||
} while (before != next && next != focused);
|
||
return next;
|
||
}
|
||
|
||
/*
|
||
* Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
|
||
* direction is D_LEFT, then we return the rightmost container and if direction
|
||
* is D_RIGHT, we return the leftmost container. This is because if we are
|
||
* moving D_LEFT, and thus want the rightmost container.
|
||
*
|
||
*/
|
||
Con *con_descend_direction(Con *con, direction_t direction) {
|
||
Con *most = NULL;
|
||
Con *current;
|
||
int orientation = con_orientation(con);
|
||
DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
|
||
if (direction == D_LEFT || direction == D_RIGHT) {
|
||
if (orientation == HORIZ) {
|
||
/* If the direction is horizontal, we can use either the first
|
||
* (D_RIGHT) or the last con (D_LEFT) */
|
||
if (direction == D_RIGHT)
|
||
most = TAILQ_FIRST(&(con->nodes_head));
|
||
else most = TAILQ_LAST(&(con->nodes_head), nodes_head);
|
||
} else if (orientation == VERT) {
|
||
/* Wrong orientation. We use the last focused con. Within that con,
|
||
* we recurse to chose the left/right con or at least the last
|
||
* focused one. */
|
||
TAILQ_FOREACH(current, &(con->focus_head), focused) {
|
||
if (current->type != CT_FLOATING_CON) {
|
||
most = current;
|
||
break;
|
||
}
|
||
}
|
||
} else {
|
||
/* If the con has no orientation set, it’s not a split container
|
||
* but a container with a client window, so stop recursing */
|
||
return con;
|
||
}
|
||
}
|
||
|
||
if (direction == D_UP || direction == D_DOWN) {
|
||
if (orientation == VERT) {
|
||
/* If the direction is vertical, we can use either the first
|
||
* (D_DOWN) or the last con (D_UP) */
|
||
if (direction == D_UP)
|
||
most = TAILQ_LAST(&(con->nodes_head), nodes_head);
|
||
else most = TAILQ_FIRST(&(con->nodes_head));
|
||
} else if (orientation == HORIZ) {
|
||
/* Wrong orientation. We use the last focused con. Within that con,
|
||
* we recurse to chose the top/bottom con or at least the last
|
||
* focused one. */
|
||
TAILQ_FOREACH(current, &(con->focus_head), focused) {
|
||
if (current->type != CT_FLOATING_CON) {
|
||
most = current;
|
||
break;
|
||
}
|
||
}
|
||
} else {
|
||
/* If the con has no orientation set, it’s not a split container
|
||
* but a container with a client window, so stop recursing */
|
||
return con;
|
||
}
|
||
}
|
||
|
||
if (!most)
|
||
return con;
|
||
return con_descend_direction(most, direction);
|
||
}
|
||
|
||
/*
|
||
* Returns a "relative" Rect which contains the amount of pixels that need to
|
||
* be added to the original Rect to get the final position (obviously the
|
||
* amount of pixels for normal, 1pixel and borderless are different).
|
||
*
|
||
*/
|
||
Rect con_border_style_rect(Con *con) {
|
||
adjacent_t borders_to_hide = ADJ_NONE;
|
||
int border_width = con->current_border_width;
|
||
DLOG("The border width for con is set to: %d\n", con->current_border_width);
|
||
Rect result;
|
||
if (con->current_border_width < 0) {
|
||
if (con_is_floating(con)) {
|
||
border_width = config.default_floating_border_width;
|
||
} else {
|
||
border_width = config.default_border_width;
|
||
}
|
||
}
|
||
DLOG("Effective border width is set to: %d\n", border_width);
|
||
/* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
|
||
int border_style = con_border_style(con);
|
||
if (border_style == BS_NONE)
|
||
return (Rect){ 0, 0, 0, 0 };
|
||
borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
|
||
if (border_style == BS_NORMAL) {
|
||
result = (Rect){border_width, 0 , -(2 * border_width), -(border_width)};
|
||
} else {
|
||
result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
|
||
}
|
||
|
||
/* Floating windows are never adjacent to any other window, so
|
||
don’t hide their border(s). This prevents bug #998. */
|
||
if (con_is_floating(con))
|
||
return result;
|
||
|
||
if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
|
||
result.x -= border_width;
|
||
result.width += border_width;
|
||
}
|
||
if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
|
||
result.width += border_width;
|
||
}
|
||
if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
|
||
result.y -= border_width;
|
||
result.height += border_width;
|
||
}
|
||
if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
|
||
result.height += border_width;
|
||
}
|
||
return result;
|
||
|
||
}
|
||
|
||
/*
|
||
* Returns adjacent borders of the window. We need this if hide_edge_borders is
|
||
* enabled.
|
||
*/
|
||
adjacent_t con_adjacent_borders(Con *con) {
|
||
adjacent_t result = ADJ_NONE;
|
||
Con *workspace = con_get_workspace(con);
|
||
if (con->rect.x == workspace->rect.x)
|
||
result |= ADJ_LEFT_SCREEN_EDGE;
|
||
if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
|
||
result |= ADJ_RIGHT_SCREEN_EDGE;
|
||
if (con->rect.y == workspace->rect.y)
|
||
result |= ADJ_UPPER_SCREEN_EDGE;
|
||
if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
|
||
result |= ADJ_LOWER_SCREEN_EDGE;
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
* Use this function to get a container’s border style. This is important
|
||
* because when inside a stack, the border style is always BS_NORMAL.
|
||
* For tabbed mode, the same applies, with one exception: when the container is
|
||
* borderless and the only element in the tabbed container, the border is not
|
||
* rendered.
|
||
*
|
||
* For children of a CT_DOCKAREA, the border style is always none.
|
||
*
|
||
*/
|
||
int con_border_style(Con *con) {
|
||
Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
|
||
if (fs == con) {
|
||
DLOG("this one is fullscreen! overriding BS_NONE\n");
|
||
return BS_NONE;
|
||
}
|
||
|
||
if (con->parent->layout == L_STACKED)
|
||
return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
|
||
|
||
if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
|
||
return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
|
||
|
||
if (con->parent->type == CT_DOCKAREA)
|
||
return BS_NONE;
|
||
|
||
return con->border_style;
|
||
}
|
||
|
||
/*
|
||
* Sets the given border style on con, correctly keeping the position/size of a
|
||
* floating window.
|
||
*
|
||
*/
|
||
void con_set_border_style(Con *con, int border_style, int border_width) {
|
||
/* Handle the simple case: non-floating containerns */
|
||
if (!con_is_floating(con)) {
|
||
con->border_style = border_style;
|
||
con->current_border_width = border_width;
|
||
return;
|
||
}
|
||
|
||
/* For floating containers, we want to keep the position/size of the
|
||
* *window* itself. We first add the border pixels to con->rect to make
|
||
* con->rect represent the absolute position of the window. Then, we change
|
||
* the border and subtract the new border pixels. Afterwards, we update
|
||
* parent->rect to contain con. */
|
||
DLOG("This is a floating container\n");
|
||
|
||
Rect bsr = con_border_style_rect(con);
|
||
con->rect.x += bsr.x;
|
||
con->rect.y += bsr.y;
|
||
con->rect.width += bsr.width;
|
||
con->rect.height += bsr.height;
|
||
|
||
/* Change the border style, get new border/decoration values. */
|
||
con->border_style = border_style;
|
||
con->current_border_width = border_width;
|
||
bsr = con_border_style_rect(con);
|
||
int deco_height =
|
||
(con->border_style == BS_NORMAL ? render_deco_height() : 0);
|
||
|
||
con->rect.x -= bsr.x;
|
||
con->rect.y -= bsr.y;
|
||
con->rect.width -= bsr.width;
|
||
con->rect.height -= bsr.height;
|
||
|
||
Con *parent = con->parent;
|
||
parent->rect.x = con->rect.x;
|
||
parent->rect.y = con->rect.y - deco_height;
|
||
parent->rect.width = con->rect.width;
|
||
parent->rect.height = con->rect.height + deco_height;
|
||
}
|
||
|
||
/*
|
||
* This function changes the layout of a given container. Use it to handle
|
||
* special cases like changing a whole workspace to stacked/tabbed (creates a
|
||
* new split container before).
|
||
*
|
||
*/
|
||
void con_set_layout(Con *con, layout_t layout) {
|
||
DLOG("con_set_layout(%p, %d), con->type = %d\n",
|
||
con, layout, con->type);
|
||
|
||
/* Users can focus workspaces, but not any higher in the hierarchy.
|
||
* Focus on the workspace is a special case, since in every other case, the
|
||
* user means "change the layout of the parent split container". */
|
||
if (con->type != CT_WORKSPACE)
|
||
con = con->parent;
|
||
|
||
/* We fill in last_split_layout when switching to a different layout
|
||
* since there are many places in the code that don’t use
|
||
* con_set_layout(). */
|
||
if (con->layout == L_SPLITH || con->layout == L_SPLITV)
|
||
con->last_split_layout = con->layout;
|
||
|
||
/* When the container type is CT_WORKSPACE, the user wants to change the
|
||
* whole workspace into stacked/tabbed mode. To do this and still allow
|
||
* intuitive operations (like level-up and then opening a new window), we
|
||
* need to create a new split container. */
|
||
if (con->type == CT_WORKSPACE &&
|
||
(layout == L_STACKED || layout == L_TABBED)) {
|
||
if (con_num_children(con) == 0) {
|
||
DLOG("Setting workspace_layout to %d\n", layout);
|
||
con->workspace_layout = layout;
|
||
} else {
|
||
DLOG("Creating new split container\n");
|
||
/* 1: create a new split container */
|
||
Con *new = con_new(NULL, NULL);
|
||
new->parent = con;
|
||
|
||
/* 2: Set the requested layout on the split container and mark it as
|
||
* split. */
|
||
new->layout = layout;
|
||
new->last_split_layout = con->last_split_layout;
|
||
|
||
Con *old_focused = TAILQ_FIRST(&(con->focus_head));
|
||
if (old_focused == TAILQ_END(&(con->focus_head)))
|
||
old_focused = NULL;
|
||
|
||
/* 3: move the existing cons of this workspace below the new con */
|
||
DLOG("Moving cons\n");
|
||
Con *child;
|
||
while (!TAILQ_EMPTY(&(con->nodes_head))) {
|
||
child = TAILQ_FIRST(&(con->nodes_head));
|
||
con_detach(child);
|
||
con_attach(child, new, true);
|
||
}
|
||
|
||
/* 4: attach the new split container to the workspace */
|
||
DLOG("Attaching new split to ws\n");
|
||
con_attach(new, con, false);
|
||
|
||
if (old_focused)
|
||
con_focus(old_focused);
|
||
|
||
tree_flatten(croot);
|
||
}
|
||
con_force_split_parents_redraw(con);
|
||
return;
|
||
}
|
||
|
||
if (layout == L_DEFAULT) {
|
||
/* Special case: the layout formerly known as "default" (in combination
|
||
* with an orientation). Since we switched to splith/splitv layouts,
|
||
* using the "default" layout (which "only" should happen when using
|
||
* legacy configs) is using the last split layout (either splith or
|
||
* splitv) in order to still do the same thing.
|
||
*
|
||
* Starting from v4.6 though, we will nag users about using "layout
|
||
* default", and in v4.9 we will remove it entirely (with an
|
||
* appropriate i3-migrate-config mechanism). */
|
||
con->layout = con->last_split_layout;
|
||
/* In case last_split_layout was not initialized… */
|
||
if (con->layout == L_DEFAULT)
|
||
con->layout = L_SPLITH;
|
||
} else {
|
||
con->layout = layout;
|
||
}
|
||
con_force_split_parents_redraw(con);
|
||
}
|
||
|
||
/*
|
||
* This function toggles the layout of a given container. toggle_mode can be
|
||
* either 'default' (toggle only between stacked/tabbed/last_split_layout),
|
||
* 'split' (toggle only between splitv/splith) or 'all' (toggle between all
|
||
* layouts).
|
||
*
|
||
*/
|
||
void con_toggle_layout(Con *con, const char *toggle_mode) {
|
||
Con *parent = con;
|
||
/* Users can focus workspaces, but not any higher in the hierarchy.
|
||
* Focus on the workspace is a special case, since in every other case, the
|
||
* user means "change the layout of the parent split container". */
|
||
if (con->type != CT_WORKSPACE)
|
||
parent = con->parent;
|
||
DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
|
||
|
||
if (strcmp(toggle_mode, "split") == 0) {
|
||
/* Toggle between splits. When the current layout is not a split
|
||
* layout, we just switch back to last_split_layout. Otherwise, we
|
||
* change to the opposite split layout. */
|
||
if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
|
||
con_set_layout(con, parent->last_split_layout);
|
||
else {
|
||
if (parent->layout == L_SPLITH)
|
||
con_set_layout(con, L_SPLITV);
|
||
else con_set_layout(con, L_SPLITH);
|
||
}
|
||
} else {
|
||
if (parent->layout == L_STACKED)
|
||
con_set_layout(con, L_TABBED);
|
||
else if (parent->layout == L_TABBED) {
|
||
if (strcmp(toggle_mode, "all") == 0)
|
||
con_set_layout(con, L_SPLITH);
|
||
else con_set_layout(con, parent->last_split_layout);
|
||
} else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
|
||
if (strcmp(toggle_mode, "all") == 0) {
|
||
/* When toggling through all modes, we toggle between
|
||
* splith/splitv, whereas normally we just directly jump to
|
||
* stacked. */
|
||
if (parent->layout == L_SPLITH)
|
||
con_set_layout(con, L_SPLITV);
|
||
else con_set_layout(con, L_STACKED);
|
||
} else {
|
||
con_set_layout(con, L_STACKED);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Callback which will be called when removing a child from the given con.
|
||
* Kills the container if it is empty and replaces it with the child if there
|
||
* is exactly one child.
|
||
*
|
||
*/
|
||
static void con_on_remove_child(Con *con) {
|
||
DLOG("on_remove_child\n");
|
||
|
||
/* Every container 'above' (in the hierarchy) the workspace content should
|
||
* not be closed when the last child was removed */
|
||
if (con->type == CT_OUTPUT ||
|
||
con->type == CT_ROOT ||
|
||
con->type == CT_DOCKAREA ||
|
||
(con->parent != NULL && con->parent->type == CT_OUTPUT)) {
|
||
DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
|
||
return;
|
||
}
|
||
|
||
/* For workspaces, close them only if they're not visible anymore */
|
||
if (con->type == CT_WORKSPACE) {
|
||
if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
|
||
LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
|
||
tree_close(con, DONT_KILL_WINDOW, false, false);
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
|
||
}
|
||
return;
|
||
}
|
||
|
||
con_force_split_parents_redraw(con);
|
||
con->urgent = con_has_urgent_child(con);
|
||
con_update_parents_urgency(con);
|
||
|
||
/* TODO: check if this container would swallow any other client and
|
||
* don’t close it automatically. */
|
||
int children = con_num_children(con);
|
||
if (children == 0) {
|
||
DLOG("Container empty, closing\n");
|
||
tree_close(con, DONT_KILL_WINDOW, false, false);
|
||
return;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Determines the minimum size of the given con by looking at its children (for
|
||
* split/stacked/tabbed cons). Will be called when resizing floating cons
|
||
*
|
||
*/
|
||
Rect con_minimum_size(Con *con) {
|
||
DLOG("Determining minimum size for con %p\n", con);
|
||
|
||
if (con_is_leaf(con)) {
|
||
DLOG("leaf node, returning 75x50\n");
|
||
return (Rect){ 0, 0, 75, 50 };
|
||
}
|
||
|
||
if (con->type == CT_FLOATING_CON) {
|
||
DLOG("floating con\n");
|
||
Con *child = TAILQ_FIRST(&(con->nodes_head));
|
||
return con_minimum_size(child);
|
||
}
|
||
|
||
if (con->layout == L_STACKED || con->layout == L_TABBED) {
|
||
uint32_t max_width = 0, max_height = 0, deco_height = 0;
|
||
Con *child;
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
Rect min = con_minimum_size(child);
|
||
deco_height += child->deco_rect.height;
|
||
max_width = max(max_width, min.width);
|
||
max_height = max(max_height, min.height);
|
||
}
|
||
DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
|
||
max_width, max_height, deco_height);
|
||
return (Rect){ 0, 0, max_width, max_height + deco_height };
|
||
}
|
||
|
||
/* For horizontal/vertical split containers we sum up the width (h-split)
|
||
* or height (v-split) and use the maximum of the height (h-split) or width
|
||
* (v-split) as minimum size. */
|
||
if (con_is_split(con)) {
|
||
uint32_t width = 0, height = 0;
|
||
Con *child;
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
Rect min = con_minimum_size(child);
|
||
if (con->layout == L_SPLITH) {
|
||
width += min.width;
|
||
height = max(height, min.height);
|
||
} else {
|
||
height += min.height;
|
||
width = max(width, min.width);
|
||
}
|
||
}
|
||
DLOG("split container, returning width = %d x height = %d\n", width, height);
|
||
return (Rect){ 0, 0, width, height };
|
||
}
|
||
|
||
ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
|
||
con->type, con->layout, con_is_split(con));
|
||
assert(false);
|
||
}
|
||
|
||
/*
|
||
* Returns true if changing the focus to con would be allowed considering
|
||
* the fullscreen focus constraints. Specifically, if a fullscreen container or
|
||
* any of its descendants is focused, this function returns true if and only if
|
||
* focusing con would mean that focus would still be visible on screen, i.e.,
|
||
* the newly focused container would not be obscured by a fullscreen container.
|
||
*
|
||
* In the simplest case, if a fullscreen container or any of its descendants is
|
||
* fullscreen, this functions returns true if con is the fullscreen container
|
||
* itself or any of its descendants, as this means focus wouldn't escape the
|
||
* boundaries of the fullscreen container.
|
||
*
|
||
* In case the fullscreen container is of type CF_OUTPUT, this function returns
|
||
* true if con is on a different workspace, as focus wouldn't be obscured by
|
||
* the fullscreen container that is constrained to a different workspace.
|
||
*
|
||
* Note that this same logic can be applied to moving containers. If a
|
||
* container can be focused under the fullscreen focus constraints, it can also
|
||
* become a parent or sibling to the currently focused container.
|
||
*
|
||
*/
|
||
bool con_fullscreen_permits_focusing(Con *con) {
|
||
/* No focus, no problem. */
|
||
if (!focused)
|
||
return true;
|
||
|
||
/* Find the first fullscreen ascendent. */
|
||
Con *fs = focused;
|
||
while (fs && fs->fullscreen_mode == CF_NONE)
|
||
fs = fs->parent;
|
||
|
||
/* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
|
||
* there always has to be a workspace con in the hierarchy. */
|
||
assert(fs != NULL);
|
||
/* The most common case is we hit the workspace level. In this
|
||
* situation, changing focus is also harmless. */
|
||
assert(fs->fullscreen_mode != CF_NONE);
|
||
if (fs->type == CT_WORKSPACE)
|
||
return true;
|
||
|
||
/* Allow it if the container itself is the fullscreen container. */
|
||
if (con == fs)
|
||
return true;
|
||
|
||
/* If fullscreen is per-output, the focus being in a different workspace is
|
||
* sufficient to guarantee that change won't leave fullscreen in bad shape. */
|
||
if (fs->fullscreen_mode == CF_OUTPUT &&
|
||
con_get_workspace(con) != con_get_workspace(fs)) {
|
||
return true;
|
||
}
|
||
|
||
/* Allow it only if the container to be focused is contained within the
|
||
* current fullscreen container. */
|
||
do {
|
||
if (con->parent == fs)
|
||
return true;
|
||
con = con->parent;
|
||
} while (con);
|
||
|
||
/* Focusing con would hide it behind a fullscreen window, disallow it. */
|
||
return false;
|
||
}
|
||
|
||
/*
|
||
*
|
||
* Checks if the given container has an urgent child.
|
||
*
|
||
*/
|
||
bool con_has_urgent_child(Con *con) {
|
||
Con *child;
|
||
|
||
if (con_is_leaf(con))
|
||
return con->urgent;
|
||
|
||
/* We are not interested in floating windows since they can only be
|
||
* attached to a workspace → nodes_head instead of focus_head */
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
if (con_has_urgent_child(child))
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
/*
|
||
* Make all parent containers urgent if con is urgent or clear the urgent flag
|
||
* of all parent containers if there are no more urgent children left.
|
||
*
|
||
*/
|
||
void con_update_parents_urgency(Con *con) {
|
||
Con *parent = con->parent;
|
||
|
||
bool new_urgency_value = con->urgent;
|
||
while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
|
||
if (new_urgency_value) {
|
||
parent->urgent = true;
|
||
} else {
|
||
/* We can only reset the urgency when the parent
|
||
* has no other urgent children */
|
||
if (!con_has_urgent_child(parent))
|
||
parent->urgent = false;
|
||
}
|
||
parent = parent->parent;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Set urgency flag to the container, all the parent containers and the workspace.
|
||
*
|
||
*/
|
||
void con_set_urgency(Con *con, bool urgent) {
|
||
if (focused == con) {
|
||
DLOG("Ignoring urgency flag for current client\n");
|
||
con->window->urgent.tv_sec = 0;
|
||
con->window->urgent.tv_usec = 0;
|
||
return;
|
||
}
|
||
|
||
if (con->urgency_timer == NULL) {
|
||
con->urgent = urgent;
|
||
} else
|
||
DLOG("Discarding urgency WM_HINT because timer is running\n");
|
||
|
||
//CLIENT_LOG(con);
|
||
if (con->window) {
|
||
if (con->urgent) {
|
||
gettimeofday(&con->window->urgent, NULL);
|
||
} else {
|
||
con->window->urgent.tv_sec = 0;
|
||
con->window->urgent.tv_usec = 0;
|
||
}
|
||
}
|
||
|
||
con_update_parents_urgency(con);
|
||
|
||
if (con->urgent == urgent)
|
||
LOG("Urgency flag changed to %d\n", con->urgent);
|
||
|
||
Con *ws;
|
||
/* Set the urgency flag on the workspace, if a workspace could be found
|
||
* (for dock clients, that is not the case). */
|
||
if ((ws = con_get_workspace(con)) != NULL)
|
||
workspace_update_urgent_flag(ws);
|
||
}
|
||
|
||
/*
|
||
* Create a string representing the subtree under con.
|
||
*
|
||
*/
|
||
char *con_get_tree_representation(Con *con) {
|
||
/* this code works as follows:
|
||
* 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
|
||
* 2) append the tree representation of the children to the string
|
||
* 3) add closing bracket
|
||
*
|
||
* The recursion ends when we hit a leaf, in which case we return the
|
||
* class_instance of the contained window.
|
||
*/
|
||
|
||
/* end of recursion */
|
||
if (con_is_leaf(con)) {
|
||
if (!con->window)
|
||
return sstrdup("nowin");
|
||
|
||
if (!con->window->class_instance)
|
||
return sstrdup("noinstance");
|
||
|
||
return sstrdup(con->window->class_instance);
|
||
}
|
||
|
||
char *buf;
|
||
/* 1) add the Layout type to buf */
|
||
if (con->layout == L_DEFAULT)
|
||
buf = sstrdup("D[");
|
||
else if (con->layout == L_SPLITV)
|
||
buf = sstrdup("V[");
|
||
else if (con->layout == L_SPLITH)
|
||
buf = sstrdup("H[");
|
||
else if (con->layout == L_TABBED)
|
||
buf = sstrdup("T[");
|
||
else if (con->layout == L_STACKED)
|
||
buf = sstrdup("S[");
|
||
else {
|
||
ELOG("BUG: Code not updated to account for new layout type\n");
|
||
assert(false);
|
||
}
|
||
|
||
/* 2) append representation of children */
|
||
Con *child;
|
||
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
|
||
char *child_txt = con_get_tree_representation(child);
|
||
|
||
char *tmp_buf;
|
||
sasprintf(&tmp_buf, "%s%s%s", buf,
|
||
(TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
|
||
free(buf);
|
||
buf = tmp_buf;
|
||
}
|
||
|
||
/* 3) close the brackets */
|
||
char *complete_buf;
|
||
sasprintf(&complete_buf, "%s]", buf);
|
||
free(buf);
|
||
|
||
return complete_buf;
|
||
}
|