oracular (3) wayland_zwp_fullscreen_shell_v1_t.3.gz
NAME
wayland::zwp_fullscreen_shell_v1_t - displays a single surface per output
SYNOPSIS
#include <wayland-client-protocol-unstable.hpp>
Inherits wayland::proxy_t.
Public Types
enum class wrapper_type { standard, display, foreign, proxy_wrapper }
Public Member Functions
void release ()
release the wl_fullscreen_shell interface
void present_surface (surface_t const &surface, zwp_fullscreen_shell_v1_present_method const &method,
output_t const &output)
present surface for display
zwp_fullscreen_shell_mode_feedback_v1_t present_surface_for_mode (surface_t const &surface, output_t
const &output, int32_t framerate)
present surface for display at a particular mode
std::function< void(zwp_fullscreen_shell_v1_capability)> & on_capability ()
advertises a capability of the compositor
uint32_t get_id () const
Get the id of a proxy object.
std::string get_class () const
Get the interface name (class) of a proxy object.
uint32_t get_version () const
Get the protocol object version of a proxy object.
wrapper_type get_wrapper_type () const
Get the type of a proxy object.
void set_queue (event_queue_t queue)
Assign a proxy to an event queue.
wl_proxy * c_ptr () const
Get a pointer to the underlying C struct.
bool proxy_has_object () const
Check whether this wrapper actually wraps an object.
operator bool () const
Check whether this wrapper actually wraps an object.
bool operator== (const proxy_t &right) const
Check whether two wrappers refer to the same object.
bool operator!= (const proxy_t &right) const
Check whether two wrappers refer to different objects.
void proxy_release ()
Release the wrapped object (if any), making this an empty wrapper.
Static Public Attributes
static constexpr std::uint32_t release_since_version = 1
Minimum protocol version required for the release function.
static constexpr std::uint32_t present_surface_since_version = 1
Minimum protocol version required for the present_surface function.
static constexpr std::uint32_t present_surface_for_mode_since_version = 1
Minimum protocol version required for the present_surface_for_mode function.
Detailed Description
displays a single surface per output
Displays a single surface per output.
This interface provides a mechanism for a single client to display simple full-screen surfaces. While
there technically may be multiple clients bound to this interface, only one of those clients should be
shown at a time.
To present a surface, the client uses either the present_surface or present_surface_for_mode requests.
Presenting a surface takes effect on the next wl_surface.commit. See the individual requests for details
about scaling and mode switches.
The client can have at most one surface per output at any time. Requesting a surface to be presented on
an output that already has a surface replaces the previously presented surface. Presenting a null surface
removes its content and effectively disables the output. Exactly what happens when an output is
'disabled' is compositor-specific. The same surface may be presented on multiple outputs simultaneously.
Once a surface is presented on an output, it stays on that output until either the client removes it or
the compositor destroys the output. This way, the client can update the output's contents by simply
attaching a new buffer.
Warning! The protocol described in this file is experimental and backward incompatible changes may be
made. Backward compatible changes may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in the protocol and interface names
and resetting the interface version. Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the interface version number is reset.
Definition at line 305 of file wayland-client-protocol-unstable.hpp.
Member Enumeration Documentation
enum class wayland::proxy_t::wrapper_type [strong], [inherited]
Underlying wl_proxy type and properties of a proxy_t that affect construction, destruction, and event
handling
Enumerator
standard
C pointer is a standard type compatible with wl_proxy*. Events are dispatched and it is destructed
when the proxy_t is destructed. User data is set.
display
C pointer is a wl_display*. No events are dispatched, wl_display_disconnect is called when the
proxy_t is destructed. User data is set.
foreign
C pointer is a standard type compatible with wl_proxy*, but another library owns it and it should
not be touched in a way that could affect the operation of the other library. No events are
dispatched, wl_proxy_destroy is not called when the proxy_t is destructed, user data is not
touched. Consequently, there is no reference counting for the proxy_t. Lifetime of such wrappers
should preferably be short to minimize the chance that the owning library decides to destroy the
wl_proxy.
proxy_wrapper
C pointer is a wl_proxy* that was constructed with wl_proxy_create_wrapper. No events are
dispatched, wl_proxy_wrapper_destroy is called when the proxy_t is destroyed. Reference counting
is active. A reference to the proxy_t creating this proxy wrapper is held to extend its lifetime
until after the proxy wrapper is destroyed.
Definition at line 116 of file wayland-client.hpp.
Member Function Documentation
wl_proxy * wayland::proxy_t::c_ptr () const [inherited]
Get a pointer to the underlying C struct.
Returns
The underlying wl_proxy wrapped by this proxy_t if it exists, otherwise an exception is thrown
std::string wayland::proxy_t::get_class () const [inherited]
Get the interface name (class) of a proxy object.
Returns
The interface name of the object associated with the proxy
uint32_t wayland::proxy_t::get_id () const [inherited]
Get the id of a proxy object.
Returns
The id the object associated with the proxy
uint32_t wayland::proxy_t::get_version () const [inherited]
Get the protocol object version of a proxy object. Gets the protocol object version of a proxy object, or
0 if the proxy was created with unversioned API.
A returned value of 0 means that no version information is available, so the caller must make safe
assumptions about the object's real version.
display_t will always return version 0.
Returns
The protocol object version of the proxy or 0
wrapper_type wayland::proxy_t::get_wrapper_type () const [inline], [inherited]
Get the type of a proxy object.
Definition at line 302 of file wayland-client.hpp.
std::function< void(zwp_fullscreen_shell_v1_capability)> & zwp_fullscreen_shell_v1_t::on_capability ()
advertises a capability of the compositor
Parameters
capability
Advertises a single capability of the compositor.
When the wl_fullscreen_shell interface is bound, this event is emitted once for each capability
advertised. Valid capabilities are given by the wl_fullscreen_shell.capability enum. If clients want to
take advantage of any of these capabilities, they should use a wl_display.sync request immediately after
binding to ensure that they receive all the capability events.
Definition at line 4271 of file wayland-client-protocol-unstable.cpp.
wayland::proxy_t::operator bool () const [inherited]
Check whether this wrapper actually wraps an object.
Returns
true if there is an underlying object, false if this wrapper is empty
bool wayland::proxy_t::operator!= (const proxy_t & right) const [inherited]
Check whether two wrappers refer to different objects.
bool wayland::proxy_t::operator== (const proxy_t & right) const [inherited]
Check whether two wrappers refer to the same object.
void zwp_fullscreen_shell_v1_t::present_surface (surface_t const & surface,
zwp_fullscreen_shell_v1_present_method const & method, output_t const & output)
present surface for display
Parameters
surface
method
output
Present a surface on the given output.
If the output is null, the compositor will present the surface on whatever display (or displays) it
thinks best. In particular, this may replace any or all surfaces currently presented so it should not be
used in combination with placing surfaces on specific outputs.
The method parameter is a hint to the compositor for how the surface is to be presented. In particular,
it tells the compositor how to handle a size mismatch between the presented surface and the output. The
compositor is free to ignore this parameter.
The 'zoom', 'zoom_crop', and 'stretch' methods imply a scaling operation on the surface. This will
override any kind of output scaling, so the buffer_scale property of the surface is effectively ignored.
This request gives the surface the role of a fullscreen shell surface. If the surface already has another
role, it raises a role protocol error.
Definition at line 4258 of file wayland-client-protocol-unstable.cpp.
zwp_fullscreen_shell_mode_feedback_v1_t zwp_fullscreen_shell_v1_t::present_surface_for_mode (surface_t const
& surface, output_t const & output, int32_t framerate)
present surface for display at a particular mode
Parameters
surface
output
framerate
Presents a surface on the given output for a particular mode.
If the current size of the output differs from that of the surface, the compositor will attempt to change
the size of the output to match the surface. The result of the mode-switch operation will be returned via
the provided wl_fullscreen_shell_mode_feedback object.
If the current output mode matches the one requested or if the compositor successfully switches the mode
to match the surface, then the mode_successful event will be sent and the output will contain the
contents of the given surface. If the compositor cannot match the output size to the surface size, the
mode_failed will be sent and the output will contain the contents of the previously presented surface (if
any). If another surface is presented on the given output before either of these has a chance to happen,
the present_cancelled event will be sent.
Due to race conditions and other issues unknown to the client, no mode-switch operation is guaranteed to
succeed. However, if the mode is one advertised by wl_output.mode or if the compositor advertises the
ARBITRARY_MODES capability, then the client should expect that the mode-switch operation will usually
succeed.
If the size of the presented surface changes, the resulting output is undefined. The compositor may
attempt to change the output mode to compensate. However, there is no guarantee that a suitable mode will
be found and the client has no way to be notified of success or failure.
The framerate parameter specifies the desired framerate for the output in mHz. The compositor is free to
ignore this parameter. A value of 0 indicates that the client has no preference.
If the value of wl_output.scale differs from wl_surface.buffer_scale, then the compositor may choose a
mode that matches either the buffer size or the surface size. In either case, the surface will fill the
output.
This request gives the surface the role of a fullscreen shell surface. If the surface already has another
role, it raises a role protocol error.
Definition at line 4264 of file wayland-client-protocol-unstable.cpp.
bool wayland::proxy_t::proxy_has_object () const [inherited]
Check whether this wrapper actually wraps an object.
Returns
true if there is an underlying object, false if this wrapper is empty
void wayland::proxy_t::proxy_release () [inherited]
Release the wrapped object (if any), making this an empty wrapper. Note that display_t instances cannot
be released this way. Attempts to do so are ignored.
Examples
foreign_display.cpp.
void zwp_fullscreen_shell_v1_t::release ()
release the wl_fullscreen_shell interface Release the binding from the wl_fullscreen_shell interface.
This destroys the server-side object and frees this binding. If the client binds to wl_fullscreen_shell
multiple times, it may wish to free some of those bindings.
Definition at line 4252 of file wayland-client-protocol-unstable.cpp.
void wayland::proxy_t::set_queue (event_queue_t queue) [inherited]
Assign a proxy to an event queue.
Parameters
queue The event queue that will handle this proxy
Assign proxy to event queue. Events coming from proxy will be queued in queue instead of the display's
main queue.
See also: display_t::dispatch_queue().
Examples
proxy_wrapper.cpp.
Member Data Documentation
constexpr std::uint32_t wayland::zwp_fullscreen_shell_v1_t::present_surface_for_mode_since_version = 1
[static], [constexpr]
Minimum protocol version required for the present_surface_for_mode function.
Definition at line 429 of file wayland-client-protocol-unstable.hpp.
constexpr std::uint32_t wayland::zwp_fullscreen_shell_v1_t::present_surface_since_version = 1 [static],
[constexpr]
Minimum protocol version required for the present_surface function.
Definition at line 375 of file wayland-client-protocol-unstable.hpp.
constexpr std::uint32_t wayland::zwp_fullscreen_shell_v1_t::release_since_version = 1 [static], [constexpr]
Minimum protocol version required for the release function.
Definition at line 341 of file wayland-client-protocol-unstable.hpp.
Author
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