sway/include/container.h
Drew DeVault edb3e4b5ab Add some documentation comments
This is mostly setting a precedent, I hope that others will continue to
write docs for more headers.

Ref #218
2015-11-08 12:06:51 -05:00

246 lines
6.0 KiB
C

#ifndef _SWAY_CONTAINER_H
#define _SWAY_CONTAINER_H
#include <wlc/wlc.h>
typedef struct sway_container swayc_t;
#include "layout.h"
/**
* Different kinds of containers.
*
* This enum is in order. A container will never be inside of a container below
* it on this list.
*/
enum swayc_types {
C_ROOT, /**< The root container. Only one of these ever exists. */
C_OUTPUT, /**< An output (aka monitor, head, etc). */
C_WORKSPACE, /**< A workspace. */
C_CONTAINER, /**< A manually created container. */
C_VIEW, /**< A view (aka window). */
// Keep last
C_TYPES,
};
/**
* Different ways to arrange a container.
*/
enum swayc_layouts {
L_NONE, /**< Used for containers that have no layout (views, root) */
L_HORIZ,
L_VERT,
L_STACKED,
L_TABBED,
L_FLOATING, /**< A psuedo-container, removed from the tree, to hold floating windows */
// Keep last
L_LAYOUTS,
};
/**
* Stores information about a container.
*
* The tree is made of these. Views are containers that cannot have children.
*/
struct sway_container {
/**
* If this container maps to a WLC object, this is set to that object's
* handle. Otherwise, NULL.
*/
wlc_handle handle;
enum swayc_types type;
enum swayc_layouts layout;
/**
* Width and height of this container, without borders or gaps.
*/
double width, height;
/**
* Views may request geometry, which is stored in this and ignored until
* the views are floated.
*/
int desired_width, desired_height;
/**
* The coordinates that this view appear at, relative to the output they
* are located on.
*/
double x, y;
/**
* False if this view is invisible. It could be in the scratchpad or on a
* workspace that is not shown.
*/
bool visible;
bool is_floating;
bool is_focused;
char *name;
int gaps;
list_t *children;
/**
* Children of this container that are floated.
*/
list_t *floating;
/**
* The parent of this container. NULL for the root container.
*/
struct sway_container *parent;
/**
* Which of this container's children has focus.
*/
struct sway_container *focused;
};
enum visibility_mask {
VISIBLE = true
} visible;
/**
* Allocates a new output container.
*/
swayc_t *new_output(wlc_handle handle);
/**
* Allocates a new workspace container.
*/
swayc_t *new_workspace(swayc_t *output, const char *name);
/**
* Allocates a new container and places a child into it.
*
* This is used from the split command, which creates a new container with the
* requested layout and replaces the focused container in the tree with the new
* one. Then the removed container is added as a child of the new container.
*/
swayc_t *new_container(swayc_t *child, enum swayc_layouts layout);
/**
* Allocates a new view container.
*
* Pass in a sibling view, or a workspace to become this container's parent.
*/
swayc_t *new_view(swayc_t *sibling, wlc_handle handle);
/**
* Allocates a new floating view in the active workspace.
*/
swayc_t *new_floating_view(wlc_handle handle);
/**
* Frees an output's container.
*/
swayc_t *destroy_output(swayc_t *output);
/**
* Destroys a workspace container and returns the parent pointer, or NULL.
*/
swayc_t *destroy_workspace(swayc_t *workspace);
/**
* Destroys a container and all empty parents. Returns the topmost non-empty
* parent container, or NULL.
*/
swayc_t *destroy_container(swayc_t *container);
/**
* Destroys a view container and all empty parents. Returns the topmost
* non-empty parent container, or NULL.
*/
swayc_t *destroy_view(swayc_t *view);
/**
* Finds a container based on test criteria. Returns the first container that
* passes the test.
*/
swayc_t *swayc_by_test(swayc_t *container, bool (*test)(swayc_t *view, void *data), void *data);
/**
* Finds a parent container with the given swayc_type.
*/
swayc_t *swayc_parent_by_type(swayc_t *container, enum swayc_types);
/**
* Finds a parent with the given swayc_layout.
*/
swayc_t *swayc_parent_by_layout(swayc_t *container, enum swayc_layouts);
/**
* Finds the bottom-most focused container of a type.
*/
swayc_t *swayc_focus_by_type(swayc_t *container, enum swayc_types);
/**
* Finds the bottom-most focused container of a layout.
*/
swayc_t *swayc_focus_by_layout(swayc_t *container, enum swayc_layouts);
/**
* Gets the swayc_t associated with a wlc_handle.
*/
swayc_t *swayc_by_handle(wlc_handle handle);
/**
* Gets the named swayc_t.
*/
swayc_t *swayc_by_name(const char *name);
/**
* Gets the active output's container.
*/
swayc_t *swayc_active_output(void);
/**
* Gets the active workspace's container.
*/
swayc_t *swayc_active_workspace(void);
/**
* Gets the workspace for the given view container.
*/
swayc_t *swayc_active_workspace_for(swayc_t *view);
/**
* Finds the container currently underneath the pointer.
*/
swayc_t *container_under_pointer(void);
/**
* Returns true if a container is fullscreen.
*/
bool swayc_is_fullscreen(swayc_t *view);
/**
* Returns true if this view is focused.
*/
bool swayc_is_active(swayc_t *view);
/**
* Returns true if the parent is an ancestor of the child.
*/
bool swayc_is_parent_of(swayc_t *parent, swayc_t *child);
/**
* Returns true if the child is a desecendant of the parent.
*/
bool swayc_is_child_of(swayc_t *child, swayc_t *parent);
/**
* Returns the gap (padding) of the container.
*
* This returns the inner gaps for a view, the outer gaps for a workspace, and
* 0 otherwise.
*/
int swayc_gap(swayc_t *container);
/**
* Maps a container's children over a function.
*/
void container_map(swayc_t *, void (*f)(swayc_t *, void *), void *);
/**
* Set a view as visible or invisible.
*
* This will perform the required wlc calls as well; it is not sufficient to
* simply toggle the boolean in swayc_t.
*/
void set_view_visibility(swayc_t *view, void *data);
/**
* Set the gaps value for a view.
*/
void set_gaps(swayc_t *view, void *amount);
/**
* Add to the gaps value for a view.
*/
void add_gaps(swayc_t *view, void *amount);
/**
* Issue wlc calls to make the visibility of a container consistent.
*/
void update_visibility(swayc_t *container);
#endif