Remove layout.c

When we have type safety we'll need to have functions for
workspace_add_tiling and so on. This means the existing container
functions will be just for containers, so they are being moved to
container.c. At this point layout.c doesn't contain much else, so I've
relocated everything and removed the file.

* container_swap and its static functions have been moved to the swap
command and made static.
* container_recursive_resize has been moved to the resize command and
made static.
* The following have been moved to container.c:
    * container_handle_fullscreen_reparent
    * container_insert_child
    * container_add_sibling
    * container_add_child
    * container_remove_child
    * container_replace_child
    * container_split
* enum movement_direction and sway_dir_to_wlr have been moved to util.c.

Side note: Several commands included layout.h which then included
root.h. With layout.h gone, root.h has to be included by those commands.

1 files changed, 220 insertions, 1 deletions

diff --git a/sway/tree/container.c b/sway/tree/container.c
index f9611342..f13e2e96 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -19,7 +19,6 @@
 #include "sway/output.h"
 #include "sway/server.h"
 #include "sway/tree/arrange.h"
-#include "sway/tree/layout.h"
 #include "sway/tree/view.h"
 #include "sway/tree/workspace.h"
 #include "log.h"
@@ -1159,3 +1158,223 @@ void container_add_gaps(struct sway_container *c) {
 int container_sibling_index(const struct sway_container *child) {
         return list_find(child->parent->children, child);
 }
+
+void container_handle_fullscreen_reparent(struct sway_container *con,
+                struct sway_container *old_parent) {
+        if (!con->is_fullscreen) {
+                return;
+        }
+        struct sway_container *old_workspace = old_parent;
+        if (old_workspace && old_workspace->type != C_WORKSPACE) {
+                old_workspace = container_parent(old_workspace, C_WORKSPACE);
+        }
+        struct sway_container *new_workspace = container_parent(con, C_WORKSPACE);
+        if (old_workspace == new_workspace) {
+                return;
+        }
+        // Unmark the old workspace as fullscreen
+        if (old_workspace) {
+                old_workspace->sway_workspace->fullscreen = NULL;
+        }
+
+        // Mark the new workspace as fullscreen
+        if (new_workspace->sway_workspace->fullscreen) {
+                container_set_fullscreen(
+                                new_workspace->sway_workspace->fullscreen, false);
+        }
+        new_workspace->sway_workspace->fullscreen = con;
+
+        // Resize container to new output dimensions
+        struct sway_container *output = new_workspace->parent;
+        con->x = output->x;
+        con->y = output->y;
+        con->width = output->width;
+        con->height = output->height;
+
+        if (con->type == C_VIEW) {
+                struct sway_view *view = con->sway_view;
+                view->x = output->x;
+                view->y = output->y;
+                view->width = output->width;
+                view->height = output->height;
+        } else {
+                arrange_windows(new_workspace);
+        }
+}
+
+void container_insert_child(struct sway_container *parent,
+                struct sway_container *child, int i) {
+        struct sway_container *old_parent = child->parent;
+        if (old_parent) {
+                container_remove_child(child);
+        }
+        wlr_log(WLR_DEBUG, "Inserting id:%zd at index %d", child->id, i);
+        list_insert(parent->children, i, child);
+        child->parent = parent;
+        container_handle_fullscreen_reparent(child, old_parent);
+}
+
+struct sway_container *container_add_sibling(struct sway_container *fixed,
+                struct sway_container *active) {
+        // TODO handle floating
+        struct sway_container *old_parent = NULL;
+        if (active->parent) {
+                old_parent = active->parent;
+                container_remove_child(active);
+        }
+        struct sway_container *parent = fixed->parent;
+        int i = container_sibling_index(fixed);
+        list_insert(parent->children, i + 1, active);
+        active->parent = parent;
+        container_handle_fullscreen_reparent(active, old_parent);
+        return active->parent;
+}
+
+void container_add_child(struct sway_container *parent,
+                struct sway_container *child) {
+        wlr_log(WLR_DEBUG, "Adding %p (%d, %fx%f) to %p (%d, %fx%f)",
+                        child, child->type, child->width, child->height,
+                        parent, parent->type, parent->width, parent->height);
+        struct sway_container *old_parent = child->parent;
+        list_add(parent->children, child);
+        child->parent = parent;
+        container_handle_fullscreen_reparent(child, old_parent);
+        if (old_parent) {
+                container_set_dirty(old_parent);
+        }
+        container_set_dirty(child);
+}
+
+struct sway_container *container_remove_child(struct sway_container *child) {
+        if (child->is_fullscreen) {
+                struct sway_container *workspace = container_parent(child, C_WORKSPACE);
+                workspace->sway_workspace->fullscreen = NULL;
+        }
+
+        struct sway_container *parent = child->parent;
+        list_t *list = container_is_floating(child) ?
+                parent->sway_workspace->floating : parent->children;
+        int index = list_find(list, child);
+        if (index != -1) {
+                list_del(list, index);
+        }
+        child->parent = NULL;
+        container_notify_subtree_changed(parent);
+
+        container_set_dirty(parent);
+        container_set_dirty(child);
+
+        return parent;
+}
+
+enum sway_container_layout container_get_default_layout(
+                struct sway_container *con) {
+        if (con->type != C_OUTPUT) {
+                con = container_parent(con, C_OUTPUT);
+        }
+
+        if (!sway_assert(con != NULL,
+                        "container_get_default_layout must be called on an attached"
+                        " container below the root container")) {
+                return 0;
+        }
+
+        if (config->default_layout != L_NONE) {
+                return config->default_layout;
+        } else if (config->default_orientation != L_NONE) {
+                return config->default_orientation;
+        } else if (con->width >= con->height) {
+                return L_HORIZ;
+        } else {
+                return L_VERT;
+        }
+}
+
+struct sway_container *container_replace_child(struct sway_container *child,
+                struct sway_container *new_child) {
+        struct sway_container *parent = child->parent;
+        if (parent == NULL) {
+                return NULL;
+        }
+
+        list_t *list = container_is_floating(child) ?
+                parent->sway_workspace->floating : parent->children;
+        int i = list_find(list, child);
+
+        if (new_child->parent) {
+                container_remove_child(new_child);
+        }
+        list->items[i] = new_child;
+        new_child->parent = parent;
+        child->parent = NULL;
+
+        // Set geometry for new child
+        new_child->x = child->x;
+        new_child->y = child->y;
+        new_child->width = child->width;
+        new_child->height = child->height;
+
+        // reset geometry for child
+        child->width = 0;
+        child->height = 0;
+
+        return parent;
+}
+
+struct sway_container *container_split(struct sway_container *child,
+                enum sway_container_layout layout) {
+        // TODO floating: cannot split a floating container
+        if (!sway_assert(child, "child cannot be null")) {
+                return NULL;
+        }
+        if (child->type == C_WORKSPACE && child->children->length == 0) {
+                // Special case: this just behaves like splitt
+                child->prev_split_layout = child->layout;
+                child->layout = layout;
+                return child;
+        }
+
+        struct sway_container *cont = container_create(C_CONTAINER);
+
+        wlr_log(WLR_DEBUG, "creating container %p around %p", cont, child);
+
+        child->type == C_WORKSPACE ? workspace_remove_gaps(child)
+                : container_remove_gaps(child);
+
+        cont->prev_split_layout = L_NONE;
+        cont->width = child->width;
+        cont->height = child->height;
+        cont->x = child->x;
+        cont->y = child->y;
+
+        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        bool set_focus = (seat_get_focus(seat) == child);
+
+        container_add_gaps(cont);
+
+        if (child->type == C_WORKSPACE) {
+                struct sway_container *workspace = child;
+                while (workspace->children->length) {
+                        struct sway_container *ws_child = workspace->children->items[0];
+                        container_remove_child(ws_child);
+                        container_add_child(cont, ws_child);
+                }
+
+                container_add_child(workspace, cont);
+                enum sway_container_layout old_layout = workspace->layout;
+                workspace->layout = layout;
+                cont->layout = old_layout;
+        } else {
+                cont->layout = layout;
+                container_replace_child(child, cont);
+                container_add_child(cont, child);
+        }
+
+        if (set_focus) {
+                seat_set_focus(seat, cont);
+                seat_set_focus(seat, child);
+        }
+
+        container_notify_subtree_changed(cont);
+        return cont;
+}