/*
* vim:ts=4:sw=4:expandtab
+ *
+ * i3 - an improved dynamic tiling window manager
+ * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ *
+ * tree.c: Everything that primarily modifies the layout tree data structure.
+ *
*/
-
#include "all.h"
struct Con *croot;
struct all_cons_head all_cons = TAILQ_HEAD_INITIALIZER(all_cons);
/*
- * Loads tree from ~/.i3/_restart.json (used for in-place restarts).
+ * Create the pseudo-output __i3. Output-independent workspaces such as
+ * __i3_scratch will live there.
*
*/
-bool tree_restore(const char *path) {
+static Con *_create___i3() {
+ Con *__i3 = con_new(croot, NULL);
+ FREE(__i3->name);
+ __i3->name = sstrdup("__i3");
+ __i3->type = CT_OUTPUT;
+ __i3->layout = L_OUTPUT;
+ con_fix_percent(croot);
+ x_set_name(__i3, "[i3 con] pseudo-output __i3");
+ /* For retaining the correct position/size of a scratchpad window, the
+ * dimensions of the real outputs should be multiples of the __i3
+ * pseudo-output. */
+ __i3->rect.width = 1280;
+ __i3->rect.height = 1024;
+
+ /* Add a content container. */
+ DLOG("adding main content container\n");
+ Con *content = con_new(NULL, NULL);
+ content->type = CT_CON;
+ FREE(content->name);
+ content->name = sstrdup("content");
+
+ x_set_name(content, "[i3 con] content __i3");
+ con_attach(content, __i3, false);
+
+ /* Attach the __i3_scratch workspace. */
+ Con *ws = con_new(NULL, NULL);
+ ws->type = CT_WORKSPACE;
+ ws->num = -1;
+ ws->name = sstrdup("__i3_scratch");
+ con_attach(ws, content, false);
+ x_set_name(ws, "[i3 con] workspace __i3_scratch");
+ ws->fullscreen_mode = CF_OUTPUT;
+
+ return __i3;
+}
+
+/*
+ * Loads tree from 'path' (used for in-place restarts).
+ *
+ */
+bool tree_restore(const char *path, xcb_get_geometry_reply_t *geometry) {
char *globbed = resolve_tilde(path);
if (!path_exists(globbed)) {
}
/* TODO: refactor the following */
- croot = con_new(NULL);
+ croot = con_new(NULL, NULL);
+ croot->rect = (Rect){
+ geometry->x,
+ geometry->y,
+ geometry->width,
+ geometry->height
+ };
focused = croot;
tree_append_json(globbed);
Con *ws = TAILQ_FIRST(&(out->nodes_head));
printf("ws = %p\n", ws);
+ /* For in-place restarting into v4.2, we need to make sure the new
+ * pseudo-output __i3 is present. */
+ if (strcmp(out->name, "__i3") != 0) {
+ DLOG("Adding pseudo-output __i3 during inplace restart\n");
+ Con *__i3 = _create___i3();
+ /* Ensure that it is the first output, other places in the code make
+ * that assumption. */
+ TAILQ_REMOVE(&(croot->nodes_head), __i3, nodes);
+ TAILQ_INSERT_HEAD(&(croot->nodes_head), __i3, nodes);
+ }
+
return true;
}
* root node are created in randr.c for each Output.
*
*/
-void tree_init() {
- croot = con_new(NULL);
+void tree_init(xcb_get_geometry_reply_t *geometry) {
+ croot = con_new(NULL, NULL);
FREE(croot->name);
croot->name = "root";
croot->type = CT_ROOT;
+ croot->rect = (Rect){
+ geometry->x,
+ geometry->y,
+ geometry->width,
+ geometry->height
+ };
+
+ _create___i3();
}
/*
* Opens an empty container in the current container
*
*/
-Con *tree_open_con(Con *con) {
+Con *tree_open_con(Con *con, i3Window *window) {
if (con == NULL) {
/* every focusable Con has a parent (outputs have parent root) */
con = focused->parent;
/* If the parent is an output, we are on a workspace. In this case,
* the new container needs to be opened as a leaf of the workspace. */
- if (con->type == CT_OUTPUT)
+ if (con->parent->type == CT_OUTPUT && con->type != CT_DOCKAREA) {
con = focused;
+ }
+
/* If the currently focused container is a floating container, we
- * attach the new container to the workspace */
- if (con->type == CT_FLOATING_CON)
- con = con->parent;
+ * attach the new container to the currently focused spot in its
+ * workspace. */
+ if (con->type == CT_FLOATING_CON) {
+ con = con_descend_tiling_focused(con->parent);
+ if (con->type != CT_WORKSPACE)
+ con = con->parent;
+ }
+ DLOG("con = %p\n", con);
}
assert(con != NULL);
/* 3. create the container and attach it to its parent */
- Con *new = con_new(con);
+ Con *new = con_new(con, window);
/* 4: re-calculate child->percent for each child */
con_fix_percent(con);
- /* 5: focus the new container */
- con_focus(new);
-
return new;
}
}
/*
- * Closes the given container including all children
+ * Closes the given container including all children.
+ * Returns true if the container was killed or false if just WM_DELETE was sent
+ * and the window is expected to kill itself.
+ *
+ * The dont_kill_parent flag is specified when the function calls itself
+ * recursively while deleting a containers children.
+ *
+ * The force_set_focus flag is specified in the case of killing a floating
+ * window: tree_close() will be invoked for the CT_FLOATINGCON (the parent
+ * container) and focus should be set there.
*
*/
-void tree_close(Con *con, bool kill_window, bool dont_kill_parent) {
+bool tree_close(Con *con, kill_window_t kill_window, bool dont_kill_parent, bool force_set_focus) {
bool was_mapped = con->mapped;
Con *parent = con->parent;
DLOG("next = %p, focused = %p\n", next, focused);
DLOG("closing %p, kill_window = %d\n", con, kill_window);
- Con *child;
+ Con *child, *nextchild;
+ bool abort_kill = false;
/* We cannot use TAILQ_FOREACH because the children get deleted
* in their parent’s nodes_head */
- while (!TAILQ_EMPTY(&(con->nodes_head))) {
- child = TAILQ_FIRST(&(con->nodes_head));
+ for (child = TAILQ_FIRST(&(con->nodes_head)); child; ) {
+ nextchild = TAILQ_NEXT(child, nodes);
DLOG("killing child=%p\n", child);
- tree_close(child, kill_window, true);
+ if (!tree_close(child, kill_window, true, false))
+ abort_kill = true;
+ child = nextchild;
+ }
+
+ if (abort_kill) {
+ DLOG("One of the children could not be killed immediately (WM_DELETE sent), aborting.\n");
+ return false;
}
if (con->window != NULL) {
- if (kill_window)
- x_window_kill(con->window->id);
- else {
+ if (kill_window != DONT_KILL_WINDOW) {
+ x_window_kill(con->window->id, kill_window);
+ return false;
+ } else {
+ xcb_void_cookie_t cookie;
/* un-parent the window */
- xcb_reparent_window(conn, con->window->id, root, 0, 0);
- /* TODO: client_unmap to set state to withdrawn */
+ cookie = xcb_reparent_window(conn, con->window->id, root, 0, 0);
+
+ /* Ignore X11 errors for the ReparentWindow request.
+ * X11 Errors are returned when the window was already destroyed */
+ add_ignore_event(cookie.sequence, 0);
+
+ /* We are no longer handling this window, thus set WM_STATE to
+ * WM_STATE_WITHDRAWN (see ICCCM 4.1.3.1) */
+ long data[] = { XCB_ICCCM_WM_STATE_WITHDRAWN, XCB_NONE };
+ cookie = xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
+ con->window->id, A_WM_STATE, A_WM_STATE, 32, 2, data);
+ /* Ignore X11 errors for the ReparentWindow request.
+ * X11 Errors are returned when the window was already destroyed */
+ add_ignore_event(cookie.sequence, 0);
}
FREE(con->window->class_class);
FREE(con->window->class_instance);
if (con_is_floating(con)) {
Con *ws = con_get_workspace(con);
DLOG("Container was floating, killing floating container\n");
- tree_close(parent, false, false);
+ tree_close(parent, DONT_KILL_WINDOW, false, (con == focused));
DLOG("parent container killed\n");
if (con == focused) {
DLOG("This is the focused container, i need to find another one to focus. I start looking at ws = %p\n", ws);
- next = ws;
- /* now go down the focus stack as far as
- * possible, excluding the current container */
- while (!TAILQ_EMPTY(&(next->focus_head)))
- next = TAILQ_FIRST(&(next->focus_head));
+ /* go down the focus stack as far as possible */
+ next = con_descend_focused(ws);
dont_kill_parent = true;
DLOG("Alright, focusing %p\n", next);
}
free(con->name);
+ FREE(con->deco_render_params);
TAILQ_REMOVE(&all_cons, con, all_cons);
free(con);
* when closing the parent, so we can exit now. */
if (!next) {
DLOG("No next container, i will just exit now\n");
- return;
+ return true;
}
if (was_mapped || con == focused) {
- DLOG("focusing %p / %s\n", next, next->name);
- /* TODO: check if the container (or one of its children) was focused */
- con_focus(next);
+ if ((kill_window != DONT_KILL_WINDOW) || !dont_kill_parent || con == focused) {
+ DLOG("focusing %p / %s\n", next, next->name);
+ if (next->type == CT_DOCKAREA) {
+ /* Instead of focusing the dockarea, we need to restore focus to the workspace */
+ con_focus(con_descend_focused(output_get_content(next->parent)));
+ } else {
+ if (!force_set_focus && con != focused)
+ DLOG("not changing focus, the container was not focused before\n");
+ else con_focus(next);
+ }
+ }
+ else {
+ DLOG("not focusing because we're not killing anybody");
+ }
} else {
DLOG("not focusing, was not mapped\n");
}
/* check if the parent container is empty now and close it */
- if (!dont_kill_parent &&
- parent->type != CT_WORKSPACE &&
- TAILQ_EMPTY(&(parent->nodes_head))) {
- DLOG("Closing empty parent container\n");
- /* TODO: check if this container would swallow any other client and
- * don’t close it automatically. */
- tree_close(parent, false, false);
- }
+ if (!dont_kill_parent)
+ CALL(parent, on_remove_child);
+
+ return true;
}
/*
* Closes the current container using tree_close().
*
*/
-void tree_close_con() {
+void tree_close_con(kill_window_t kill_window) {
assert(focused != NULL);
if (focused->type == CT_WORKSPACE) {
LOG("Cannot close workspace\n");
assert(focused->type != CT_ROOT);
/* Kill con */
- tree_close(focused, true, false);
+ tree_close(focused, kill_window, false, false);
}
/*
}
Con *parent = con->parent;
+
+ /* Force re-rendering to make the indicator border visible. */
+ FREE(con->deco_render_params);
+ FREE(parent->deco_render_params);
+
/* if we are in a container whose parent contains only one
* child (its split functionality is unused so far), we just change the
* orientation (more intuitive than splitting again) */
- if (con_num_children(parent) == 1) {
+ if (con_num_children(parent) == 1 &&
+ parent->layout == L_DEFAULT) {
parent->orientation = orientation;
DLOG("Just changing orientation of existing container\n");
return;
DLOG("Splitting in orientation %d\n", orientation);
/* 2: replace it with a new Con */
- Con *new = con_new(NULL);
+ Con *new = con_new(NULL, NULL);
TAILQ_REPLACE(&(parent->nodes_head), con, new, nodes);
TAILQ_REPLACE(&(parent->focus_head), con, new, focused);
new->parent = parent;
*
*/
void level_up() {
+ /* We cannot go up when we are in fullscreen mode at the moment, that would
+ * be totally not intuitive */
+ if (focused->fullscreen_mode != CF_NONE) {
+ LOG("Currently in fullscreen, not going up\n");
+ return;
+ }
/* We can focus up to the workspace, but not any higher in the tree */
- if (focused->parent->type != CT_CON &&
- focused->parent->type != CT_WORKSPACE) {
- printf("cannot go up\n");
+ if ((focused->parent->type != CT_CON &&
+ focused->parent->type != CT_WORKSPACE) ||
+ focused->type == CT_WORKSPACE) {
+ LOG("Cannot go up any further\n");
return;
}
con_focus(focused->parent);
mark_unmapped(croot);
croot->mapped = true;
- /* We start rendering at an output */
- Con *output;
- TAILQ_FOREACH(output, &(croot->nodes_head), nodes) {
- DLOG("output %p / %s\n", output, output->name);
- render_con(output, false);
- }
+ render_con(croot, false);
+
x_push_changes(croot);
DLOG("-- END RENDERING --\n");
}
/*
- * Changes focus in the given way (next/previous) and given orientation
- * (horizontal/vertical).
+ * Recursive function to walk the tree until a con can be found to focus.
*
*/
-void tree_next(char way, orientation_t orientation) {
- /* 1: get the first parent with the same orientation */
- Con *parent = focused->parent;
- while (focused->type != CT_WORKSPACE &&
- con_orientation(parent) != orientation) {
- LOG("need to go one level further up\n");
- /* if the current parent is an output, we are at a workspace
- * and the orientation still does not match */
- if (parent->type == CT_WORKSPACE)
- return;
- parent = parent->parent;
- }
- Con *current = TAILQ_FIRST(&(parent->focus_head));
- assert(current != TAILQ_END(&(parent->focus_head)));
-
- /* 2: chose next (or previous) */
- Con *next;
- if (way == 'n') {
- next = TAILQ_NEXT(current, nodes);
- /* if we are at the end of the list, we need to wrap */
- if (next == TAILQ_END(&(parent->nodes_head)))
- next = TAILQ_FIRST(&(parent->nodes_head));
- } else {
- next = TAILQ_PREV(current, nodes_head, nodes);
- /* if we are at the end of the list, we need to wrap */
- if (next == TAILQ_END(&(parent->nodes_head)))
- next = TAILQ_LAST(&(parent->nodes_head), nodes_head);
+static bool _tree_next(Con *con, char way, orientation_t orientation, bool wrap) {
+ /* Stop recursing at workspaces after attempting to switch to next
+ * workspace if possible. */
+ if (con->type == CT_WORKSPACE) {
+ Output *current_output = get_output_containing(con->rect.x, con->rect.y);
+ Output *next_output;
+
+ if (!current_output)
+ return false;
+ DLOG("Current output is %s\n", current_output->name);
+
+ /* Try to find next output */
+ direction_t direction;
+ if (way == 'n' && orientation == HORIZ)
+ direction = D_RIGHT;
+ else if (way == 'p' && orientation == HORIZ)
+ direction = D_LEFT;
+ else if (way == 'n' && orientation == VERT)
+ direction = D_DOWN;
+ else if (way == 'p' && orientation == VERT)
+ direction = D_UP;
+ else
+ return false;
+
+ next_output = get_output_next(direction, current_output);
+ if (!next_output)
+ return false;
+ DLOG("Next output is %s\n", next_output->name);
+
+ /* Find visible workspace on next output */
+ Con *workspace = NULL;
+ GREP_FIRST(workspace, output_get_content(next_output->con), workspace_is_visible(child));
+
+ /* Show next workspace and focus appropriate container if possible. */
+ if (!workspace)
+ return false;
+
+ workspace_show(workspace);
+ Con *focus = con_descend_direction(workspace, direction);
+ if (focus) {
+ con_focus(focus);
+ x_set_warp_to(&(focus->rect));
+ }
+ return true;
}
- /* 3: focus choice comes in here. at the moment we will go down
- * until we find a window */
- /* TODO: check for window, atm we only go down as far as possible */
- while (!TAILQ_EMPTY(&(next->focus_head)))
- next = TAILQ_FIRST(&(next->focus_head));
-
- DLOG("focusing %p\n", next);
- con_focus(next);
-}
+ Con *parent = con->parent;
-/*
- * Moves the current container in the given way (next/previous) and given
- * orientation (horizontal/vertical).
- *
- */
-void tree_move(char way, orientation_t orientation) {
- /* 1: get the first parent with the same orientation */
- Con *parent = focused->parent;
- Con *old_parent = parent;
- if (focused->type == CT_WORKSPACE)
- return;
- bool level_changed = false;
- while (con_orientation(parent) != orientation) {
- DLOG("need to go one level further up\n");
- /* If the current parent is an output, we are at a workspace
- * and the orientation still does not match. In this case, we split the
- * workspace to have the same look & feel as in older i3 releases. */
- if (parent->type == CT_WORKSPACE) {
- DLOG("Arrived at workspace, splitting...\n");
- /* 1: create a new split container */
- Con *new = con_new(NULL);
- new->parent = parent;
-
- /* 2: copy layout and orientation from workspace */
- new->layout = parent->layout;
- new->orientation = parent->orientation;
-
- Con *old_focused = TAILQ_FIRST(&(parent->focus_head));
- if (old_focused == TAILQ_END(&(parent->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(&(parent->nodes_head))) {
- child = TAILQ_FIRST(&(parent->nodes_head));
- con_detach(child);
- con_attach(child, new, true);
+ if (con->type == CT_FLOATING_CON) {
+ /* left/right focuses the previous/next floating container */
+ if (orientation == HORIZ) {
+ Con *next;
+ if (way == 'n')
+ next = TAILQ_NEXT(con, floating_windows);
+ else next = TAILQ_PREV(con, floating_head, floating_windows);
+
+ /* If there is no next/previous container, wrap */
+ if (!next) {
+ if (way == 'n')
+ next = TAILQ_FIRST(&(parent->floating_head));
+ else next = TAILQ_LAST(&(parent->floating_head), floating_head);
}
- /* 4: switch workspace orientation */
- parent->orientation = orientation;
-
- /* 5: attach the new split container to the workspace */
- DLOG("Attaching new split to ws\n");
- con_attach(new, parent, false);
-
- /* 6: fix the percentages */
- con_fix_percent(new);
- con_fix_percent(parent);
+ /* Still no next/previous container? bail out */
+ if (!next)
+ return false;
- if (old_focused)
- con_focus(old_focused);
-
- level_changed = true;
-
- break;
+ con_focus(con_descend_focused(next));
+ return true;
+ } else {
+ /* up/down cycles through the Z-index */
+ /* TODO: implement cycling through the z-index */
+ return false;
}
- parent = parent->parent;
- level_changed = true;
}
+
+ /* If the orientation does not match or there is no other con to focus, we
+ * need to go higher in the hierarchy */
+ if (con_orientation(parent) != orientation ||
+ con_num_children(parent) == 1)
+ return _tree_next(parent, way, orientation, wrap);
+
Con *current = TAILQ_FIRST(&(parent->focus_head));
- assert(current != TAILQ_END(&(parent->focus_head)));
-
- /* 2: chose next (or previous) */
- Con *next = current;
- if (way == 'n') {
- LOG("i would insert it after %p / %s\n", next, next->name);
-
- /* Have a look at the next container: If there is no next container or
- * if it is a leaf node, we move the focused one left to it. However,
- * for split containers, we descend into it. */
- next = TAILQ_NEXT(next, nodes);
- if (next == TAILQ_END(&(next->parent->nodes_head))) {
- if (focused == current)
- return;
- next = current;
- } else {
- if (level_changed && con_is_leaf(next)) {
- next = current;
- } else {
- /* if this is a split container, we need to go down */
- while (!TAILQ_EMPTY(&(next->focus_head)))
- next = TAILQ_FIRST(&(next->focus_head));
- }
- }
+ /* TODO: when can the following happen (except for floating windows, which
+ * are handled above)? */
+ if (TAILQ_EMPTY(&(parent->nodes_head))) {
+ DLOG("nothing to focus\n");
+ return false;
+ }
- con_detach(focused);
- con_fix_percent(focused->parent);
- focused->parent = next->parent;
+ Con *next;
+ if (way == 'n')
+ next = TAILQ_NEXT(current, nodes);
+ else next = TAILQ_PREV(current, nodes_head, nodes);
- TAILQ_INSERT_AFTER(&(next->parent->nodes_head), next, focused, nodes);
- TAILQ_INSERT_HEAD(&(next->parent->focus_head), focused, focused);
- /* TODO: don’t influence focus handling? */
- } else {
- LOG("i would insert it before %p / %s\n", current, current->name);
- bool gone_down = false;
- next = TAILQ_PREV(next, nodes_head, nodes);
- if (next == TAILQ_END(&(next->parent->nodes_head))) {
- if (focused == current)
- return;
- next = current;
- } else {
- if (level_changed && con_is_leaf(next)) {
- next = current;
- } else {
- /* if this is a split container, we need to go down */
- while (!TAILQ_EMPTY(&(next->focus_head))) {
- gone_down = true;
- next = TAILQ_FIRST(&(next->focus_head));
- }
- }
+ if (!next) {
+ if (!config.force_focus_wrapping) {
+ /* If there is no next/previous container, we check if we can focus one
+ * when going higher (without wrapping, though). If so, we are done, if
+ * not, we wrap */
+ if (_tree_next(parent, way, orientation, false))
+ return true;
+
+ if (!wrap)
+ return false;
}
- con_detach(focused);
- con_fix_percent(focused);
- focused->parent = next->parent;
-
- /* After going down in the tree, we insert the container *after*
- * the currently focused one even though the command used "before".
- * This is to keep the user experience clear, since the before/after
- * only signifies the direction of the movement on top-level */
- if (gone_down)
- TAILQ_INSERT_AFTER(&(next->parent->nodes_head), next, focused, nodes);
- else TAILQ_INSERT_BEFORE(next, focused, nodes);
- TAILQ_INSERT_HEAD(&(next->parent->focus_head), focused, focused);
- /* TODO: don’t influence focus handling? */
+ if (way == 'n')
+ next = TAILQ_FIRST(&(parent->nodes_head));
+ else next = TAILQ_LAST(&(parent->nodes_head), nodes_head);
}
- /* fix the percentages in the container we moved to */
- int children = con_num_children(next->parent);
- if (children == 1)
- focused->percent = 1.0;
- else
- focused->percent = 1.0 / (children - 1);
- con_fix_percent(next->parent);
-
- /* We need to call con_focus() to fix the focus stack "above" the container
- * we just inserted the focused container into (otherwise, the parent
- * container(s) would still point to the old container(s)). */
- con_focus(focused);
-
- if (con_num_children(old_parent) == 0) {
- DLOG("Old container empty after moving. Let's close it\n");
- tree_close(old_parent, false, false);
- }
- else {
- /* fix the percentages in the container we moved from */
- con_fix_percent(old_parent);
- }
+ /* 3: focus choice comes in here. at the moment we will go down
+ * until we find a window */
+ /* TODO: check for window, atm we only go down as far as possible */
+ con_focus(con_descend_focused(next));
+ return true;
+}
- tree_flatten(croot);
+/*
+ * Changes focus in the given way (next/previous) and given orientation
+ * (horizontal/vertical).
+ *
+ */
+void tree_next(char way, orientation_t orientation) {
+ _tree_next(focused, way, orientation, true);
}
/*
TAILQ_INSERT_BEFORE(con, current, nodes);
DLOG("attaching to focus list\n");
TAILQ_INSERT_TAIL(&(parent->focus_head), current, focused);
+ current->percent = con->percent;
}
DLOG("re-attached all\n");
/* 4: close the redundant cons */
DLOG("closing redundant cons\n");
- tree_close(con, false, true);
+ tree_close(con, DONT_KILL_WINDOW, true, false);
/* Well, we got to abort the recursion here because we destroyed the
* container. However, if tree_flatten() is called sufficiently often,
projects / i3 / i3 / blobdiff