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https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
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video: Add builders for navigation events
This commit is contained in:
Vivienne Watermeier
Sebastian Dröge
parent
1274a59472
commit
d5e4705605
1 changed files with 348 additions and 1 deletions
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@ -1,6 +1,6 @@
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// Take a look at the license at the top of the repository in the LICENSE file.
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use crate::{NavigationCommand, NavigationEventType};
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use glib::translate::{from_glib, from_glib_full, IntoGlib};
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use glib::translate::{from_glib, from_glib_full, IntoGlib, ToGlibPtr};
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use glib::ToSendValue;
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use gst::EventType;
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use std::mem;
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@ -355,6 +355,251 @@ impl StillFrameEvent {
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}
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}
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macro_rules! nav_event_builder {
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($builder:ident, $($event_field:ident: $event_type:ty,)? [$( $field_names:ident : $field_types:ty),*], $new_fn: expr) => {
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#[must_use = "The builder must be built to be used"]
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pub struct $builder<'a> {
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seqnum: Option<gst::Seqnum>,
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running_time_offset: Option<i64>,
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other_fields: Vec<(&'a str, &'a (dyn ToSendValue + Sync))>,
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$($field_names: $field_types,)*
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: NavigationModifierType,
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$($event_field: $event_type,)?
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}
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impl<'a> $builder<'a> {
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pub fn new($($event_field: $event_type)?) -> Self {
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skip_assert_initialized!();
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Self {
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seqnum: None,
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running_time_offset: None,
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other_fields: Vec::new(),
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$($field_names: <$field_types>::default(),)*
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: NavigationModifierType::empty(),
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$($event_field,)?
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}
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}
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$(pub fn $field_names(self, $field_names: $field_types) -> Self {
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Self { $field_names, ..self }
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})*
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn modifier_state(self, modifier_state: NavigationModifierType) -> Self {
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Self { modifier_state, ..self }
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}
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event_builder_generic_impl!($new_fn);
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}
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};
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}
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pub enum KeyEventType<'a> {
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Press { key: &'a str },
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Release { key: &'a str },
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}
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nav_event_builder!(
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KeyEventBuilder,
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kind: KeyEventType<'a>,
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[],
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|s: &mut Self| {
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let event = match s.kind {
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KeyEventType::Press { key } => NavigationEvent::KeyPress {
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key: key.to_owned(),
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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},
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KeyEventType::Release { key } => NavigationEvent::KeyRelease {
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key: key.to_owned(),
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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},
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};
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gst::ffi::gst_event_new_navigation(event.structure().to_glib_full())
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}
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);
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pub enum MouseEventType {
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Move,
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Press {
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button: i32,
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},
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Release {
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button: i32,
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},
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#[cfg(any(feature = "v1_18", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
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Scroll {
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delta_x: f64,
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delta_y: f64,
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},
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}
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nav_event_builder!(
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MouseEventBuilder,
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kind: MouseEventType,
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[x: f64, y: f64],
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|s: &mut Self| {
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let event = match s.kind {
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MouseEventType::Move => NavigationEvent::MouseMove {
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x: s.x,
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y: s.y,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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},
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MouseEventType::Press { button } => NavigationEvent::MouseButtonPress {
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button,
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x: s.x,
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y: s.y,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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},
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MouseEventType::Release { button } => NavigationEvent::MouseButtonRelease {
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button,
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x: s.x,
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y: s.y,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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},
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#[cfg(any(feature = "v1_18", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
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MouseEventType::Scroll { delta_x, delta_y } => NavigationEvent::MouseScroll {
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x: s.x,
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y: s.y,
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delta_x,
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delta_y,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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},
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};
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gst::ffi::gst_event_new_navigation(event.structure().to_glib_full())
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}
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);
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#[must_use = "The builder must be built to be used"]
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pub struct CommandEventBuilder<'a> {
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seqnum: Option<gst::Seqnum>,
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running_time_offset: Option<i64>,
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other_fields: Vec<(&'a str, &'a (dyn ToSendValue + Sync))>,
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command: NavigationCommand,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: NavigationModifierType,
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}
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impl<'a> CommandEventBuilder<'a> {
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pub fn new(command: NavigationCommand) -> Self {
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skip_assert_initialized!();
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Self {
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seqnum: None,
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running_time_offset: None,
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other_fields: Vec::new(),
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command,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: NavigationModifierType::empty(),
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}
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn modifier_state(self, modifier_state: NavigationModifierType) -> Self {
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Self {
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modifier_state,
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..self
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}
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}
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event_builder_generic_impl!(|s: &mut Self| {
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let event = NavigationEvent::Command {
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command: s.command,
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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modifier_state: s.modifier_state,
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};
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gst::ffi::gst_event_new_navigation(event.structure().to_glib_full())
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});
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub enum TouchEventType {
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Down { pressure: f64 },
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Motion { pressure: f64 },
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Up,
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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nav_event_builder!(
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TouchEventBuilder,
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kind: TouchEventType,
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[identifier: u32, x: f64, y: f64],
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|s: &mut Self| {
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let event = match s.kind {
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TouchEventType::Down { pressure } => NavigationEvent::TouchDown {
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identifier: s.identifier,
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x: s.x,
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y: s.y,
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modifier_state: s.modifier_state,
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pressure,
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},
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TouchEventType::Motion { pressure } => NavigationEvent::TouchMotion {
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identifier: s.identifier,
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x: s.x,
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y: s.y,
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modifier_state: s.modifier_state,
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pressure,
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},
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TouchEventType::Up => NavigationEvent::TouchUp {
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identifier: s.identifier,
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x: s.x,
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y: s.y,
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modifier_state: s.modifier_state,
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},
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};
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gst::ffi::gst_event_new_navigation(event.structure().to_glib_full())
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}
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);
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub enum TouchMetaEventType {
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Frame,
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Cancel,
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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nav_event_builder!(
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TouchMetaEventBuilder,
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kind: TouchMetaEventType,
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[],
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|s: &mut Self| {
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let event = match s.kind {
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TouchMetaEventType::Frame => NavigationEvent::TouchFrame {
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modifier_state: s.modifier_state,
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},
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TouchMetaEventType::Cancel => NavigationEvent::TouchCancel {
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modifier_state: s.modifier_state,
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},
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};
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gst::ffi::gst_event_new_navigation(event.structure().to_glib_full())
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}
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);
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const NAVIGATION_EVENT_NAME: &str = "application/x-gst-navigation";
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#[cfg_attr(feature = "ser_de", derive(serde::Serialize, serde::Deserialize))]
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#[cfg_attr(feature = "ser_de", serde(tag = "event"))]
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@ -609,6 +854,108 @@ impl NavigationEvent {
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}
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}
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pub fn key_press_builder(key: &str) -> KeyEventBuilder {
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assert_initialized_main_thread!();
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KeyEventBuilder::new(KeyEventType::Press { key })
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}
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pub fn key_release_builder(key: &str) -> KeyEventBuilder {
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assert_initialized_main_thread!();
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KeyEventBuilder::new(KeyEventType::Release { key })
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}
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pub fn mouse_move_builder(x: f64, y: f64) -> MouseEventBuilder<'static> {
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assert_initialized_main_thread!();
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MouseEventBuilder::new(MouseEventType::Move {}).x(x).y(y)
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}
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pub fn mouse_button_press_builder(button: i32, x: f64, y: f64) -> MouseEventBuilder<'static> {
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assert_initialized_main_thread!();
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MouseEventBuilder::new(MouseEventType::Press { button })
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.x(x)
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.y(y)
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}
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pub fn mouse_button_release_builder(button: i32, x: f64, y: f64) -> MouseEventBuilder<'static> {
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assert_initialized_main_thread!();
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MouseEventBuilder::new(MouseEventType::Press { button })
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.x(x)
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.y(y)
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}
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#[cfg(any(feature = "v1_18", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
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pub fn mouse_scroll_builder(
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x: f64,
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y: f64,
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delta_x: f64,
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delta_y: f64,
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) -> MouseEventBuilder<'static> {
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assert_initialized_main_thread!();
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MouseEventBuilder::new(MouseEventType::Scroll { delta_x, delta_y })
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.x(x)
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.y(y)
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}
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pub fn command_builder(command: NavigationCommand) -> CommandEventBuilder<'static> {
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assert_initialized_main_thread!();
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CommandEventBuilder::new(command)
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn touch_down_builder(
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identifier: u32,
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x: f64,
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y: f64,
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pressure: f64,
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) -> TouchEventBuilder<'static> {
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assert_initialized_main_thread!();
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TouchEventBuilder::new(TouchEventType::Down { pressure })
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.identifier(identifier)
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.x(x)
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.y(y)
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn touch_motion_builder(
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identifier: u32,
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x: f64,
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y: f64,
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pressure: f64,
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) -> TouchEventBuilder<'static> {
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assert_initialized_main_thread!();
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TouchEventBuilder::new(TouchEventType::Motion { pressure })
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.identifier(identifier)
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.x(x)
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.y(y)
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn touch_up_builder(identifier: u32, x: f64, y: f64) -> TouchEventBuilder<'static> {
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assert_initialized_main_thread!();
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TouchEventBuilder::new(TouchEventType::Up)
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.identifier(identifier)
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.x(x)
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.y(y)
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn touch_frame_builder() -> TouchMetaEventBuilder<'static> {
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assert_initialized_main_thread!();
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TouchMetaEventBuilder::new(TouchMetaEventType::Frame)
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}
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#[cfg(any(feature = "v1_22", feature = "dox"))]
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#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
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pub fn touch_cancel_builder() -> TouchMetaEventBuilder<'static> {
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assert_initialized_main_thread!();
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TouchMetaEventBuilder::new(TouchMetaEventType::Cancel)
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}
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#[doc(alias = "gst_navigation_event_get_type")]
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pub fn type_(event: &gst::EventRef) -> NavigationEventType {
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assert_initialized_main_thread!();
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