+#undef I3__FILE__
+#define I3__FILE__ "tree.c"
/*
* 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.
+ *
+ */
+static Con *_create___i3(void) {
+ 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. Ensuring that is the job of scratchpad_fix_resolution()
+ * which gets called after this function and after detecting all the
+ * outputs (or whenever an output changes). */
+ __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");
+ content->layout = L_SPLITH;
+
+ 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");
+ ws->layout = L_SPLITH;
+ 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) {
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;
}
FREE(croot->name);
croot->name = "root";
croot->type = CT_ROOT;
+ croot->layout = L_SPLITH;
croot->rect = (Rect){
geometry->x,
geometry->y,
geometry->width,
geometry->height
};
+
+ _create___i3();
}
/*
/* 3. create the container and attach it to its parent */
Con *new = con_new(con, window);
+ new->layout = L_SPLITH;
/* 4: re-calculate child->percent for each child */
con_fix_percent(con);
}
FREE(con->window->class_class);
FREE(con->window->class_instance);
- FREE(con->window->name_x);
- FREE(con->window->name_json);
+ i3string_free(con->window->name);
free(con->window);
}
- /* kill the X11 part of this container */
- x_con_kill(con);
+ Con *ws = con_get_workspace(con);
+
+ /* Figure out which container to focus next before detaching 'con'. */
+ if (con_is_floating(con)) {
+ 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 = con_next_focused(parent);
+ dont_kill_parent = true;
+ DLOG("Alright, focusing %p\n", next);
+ } else {
+ next = NULL;
+ }
+ }
+
+ /* Detach the container so that it will not be rendered anymore. */
con_detach(con);
+
+ /* disable urgency timer, if needed */
+ if (con->urgency_timer != NULL) {
+ DLOG("Removing urgency timer of con %p\n", con);
+ workspace_update_urgent_flag(ws);
+ ev_timer_stop(main_loop, con->urgency_timer);
+ FREE(con->urgency_timer);
+ }
+
if (con->type != CT_FLOATING_CON) {
/* If the container is *not* floating, we might need to re-distribute
* percentage values for the resized containers. */
con_fix_percent(parent);
}
+ /* Render the tree so that the surrounding containers take up the space
+ * which 'con' does no longer occupy. If we don’t render here, there will
+ * be a gap in our containers and that could trigger an EnterNotify for an
+ * underlying container, see ticket #660.
+ *
+ * Rendering has to be avoided when dont_kill_parent is set (when
+ * tree_close calls itself recursively) because the tree is in a
+ * non-renderable state during that time. */
+ if (!dont_kill_parent)
+ tree_render();
+
+ /* kill the X11 part of this container */
+ x_con_kill(con);
+
if (con_is_floating(con)) {
- Con *ws = con_get_workspace(con);
DLOG("Container was floating, killing floating container\n");
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);
- /* go down the focus stack as far as possible */
- next = con_descend_focused(ws);
-
- dont_kill_parent = true;
- DLOG("Alright, focusing %p\n", next);
- } else {
- next = NULL;
- }
}
free(con->name);
}
}
else {
- DLOG("not focusing because we're not killing anybody");
+ DLOG("not focusing because we're not killing anybody\n");
}
} else {
DLOG("not focusing, was not mapped\n");
/* for a workspace, we just need to change orientation */
if (con->type == CT_WORKSPACE) {
DLOG("Workspace, simply changing orientation to %d\n", orientation);
- con->orientation = orientation;
+ con->layout = (orientation == HORIZ) ? L_SPLITH : L_SPLITV;
+ return;
+ }
+ else if (con->type == CT_FLOATING_CON) {
+ DLOG("Floating containers can't be split.\n");
return;
}
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) {
- parent->orientation = orientation;
+ if (con_num_children(parent) == 1 &&
+ (parent->layout == L_SPLITH ||
+ parent->layout == L_SPLITV)) {
+ parent->layout = (orientation == HORIZ) ? L_SPLITH : L_SPLITV;
DLOG("Just changing orientation of existing container\n");
return;
}
TAILQ_REPLACE(&(parent->nodes_head), con, new, nodes);
TAILQ_REPLACE(&(parent->focus_head), con, new, focused);
new->parent = parent;
- new->orientation = orientation;
+ new->layout = (orientation == HORIZ) ? L_SPLITH : L_SPLITV;
/* 3: swap 'percent' (resize factor) */
new->percent = con->percent;
}
/*
- * Moves focus one level up.
+ * Moves focus one level up. Returns true if focus changed.
*
*/
-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;
+bool level_up(void) {
+ /* Skip over floating containers and go directly to the grandparent
+ * (which should always be a workspace) */
+ if (focused->parent->type == CT_FLOATING_CON) {
+ con_focus(focused->parent->parent);
+ return true;
}
+
/* 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) ||
+ focused->parent->type != CT_WORKSPACE) ||
focused->type == CT_WORKSPACE) {
- LOG("Cannot go up any further\n");
- return;
+ ELOG("'focus parent': Focus is already on the workspace, cannot go higher than that.\n");
+ return false;
}
con_focus(focused->parent);
+ return true;
}
/*
- * Moves focus one level down.
+ * Moves focus one level down. Returns true if focus changed.
*
*/
-void level_down() {
+bool level_down(void) {
/* Go down the focus stack of the current node */
Con *next = TAILQ_FIRST(&(focused->focus_head));
if (next == TAILQ_END(&(focused->focus_head))) {
- printf("cannot go down\n");
- return;
+ DLOG("cannot go down\n");
+ return false;
}
+ else if (next->type == CT_FLOATING_CON) {
+ /* Floating cons shouldn't be directly focused; try immediately
+ * going to the grandchild of the focused con. */
+ Con *child = TAILQ_FIRST(&(next->focus_head));
+ if (child == TAILQ_END(&(next->focus_head))) {
+ DLOG("cannot go down\n");
+ return false;
+ }
+ else
+ next = TAILQ_FIRST(&(next->focus_head));
+ }
+
con_focus(next);
+ return true;
}
static void mark_unmapped(Con *con) {
* pushing the changes to X11 using x_push_changes().
*
*/
-void tree_render() {
+void tree_render(void) {
if (croot == NULL)
return;
*
*/
static bool _tree_next(Con *con, char way, orientation_t orientation, bool wrap) {
+ /* When dealing with fullscreen containers, it's necessary to go up to the
+ * workspace level, because 'focus $dir' will start at the con's real
+ * position in the tree, and it may not be possible to get to the edge
+ * normally due to fullscreen focusing restrictions. */
+ if (con->fullscreen_mode == CF_OUTPUT && con->type != CT_WORKSPACE)
+ con = con_get_workspace(con);
+
/* Stop recursing at workspaces after attempting to switch to next
* workspace if possible. */
if (con->type == CT_WORKSPACE) {
+ if (con_get_fullscreen_con(con, CF_GLOBAL)) {
+ DLOG("Cannot change workspace while in global fullscreen mode.\n");
+ return false;
+ }
Output *current_output = get_output_containing(con->rect.x, con->rect.y);
Output *next_output;
else
return false;
- next_output = get_output_next(direction, current_output);
+ next_output = get_output_next(direction, current_output, CLOSEST_OUTPUT);
if (!next_output)
return false;
DLOG("Next output is %s\n", next_output->name);
if (!workspace)
return false;
- workspace_show(workspace->name);
+ workspace_show(workspace);
+
+ /* If a workspace has an active fullscreen container, one of its
+ * children should always be focused. The above workspace_show()
+ * should be adequate for that, so return. */
+ if (con_get_fullscreen_con(workspace, CF_OUTPUT))
+ return true;
+
Con *focus = con_descend_direction(workspace, direction);
if (focus) {
con_focus(focus);
else next = TAILQ_LAST(&(parent->nodes_head), nodes_head);
}
+ /* Don't violate fullscreen focus restrictions. */
+ if (!con_fullscreen_permits_focusing(next))
+ return false;
+
/* 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 */
DLOG("Checking if I can flatten con = %p / %s\n", con, con->name);
/* We only consider normal containers without windows */
- if (con->type != CT_CON || con->window != NULL)
+ if (con->type != CT_CON ||
+ parent->layout == L_OUTPUT || /* con == "content" */
+ con->window != NULL)
goto recurse;
/* Ensure it got only one child */
if (child == NULL || TAILQ_NEXT(child, nodes) != NULL)
goto recurse;
+ DLOG("child = %p, con = %p, parent = %p\n", child, con, parent);
+
/* The child must have a different orientation than the con but the same as
* the con’s parent to be redundant */
- if (con->orientation == NO_ORIENTATION ||
- child->orientation == NO_ORIENTATION ||
- con->orientation == child->orientation ||
- child->orientation != parent->orientation)
+ if (!con_is_split(con) ||
+ !con_is_split(child) ||
+ con_orientation(con) == con_orientation(child) ||
+ con_orientation(child) != con_orientation(parent))
goto recurse;
DLOG("Alright, I have to flatten this situation now. Stay calm.\n");
projects / i3 / i3 / blobdiff