// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
// DO NOT EDIT

use crate::{
    BaseTransitionClip, Clip, Container, Extractable, MetaContainer, OperationClip,
    TimelineElement, VideoStandardTransitionType,
};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// Creates an object that mixes together the two underlying objects, A and B.
    /// The A object is assumed to have a higher prioirity (lower number) than the
    /// B object. At the transition in point, only A will be visible, and by the
    /// end only B will be visible.
    ///
    /// The shape of the video transition depends on the value of the "vtype"
    /// property. The default value is "crossfade". For audio, only "crossfade" is
    /// supported.
    ///
    /// The ID of the ExtractableType is the nickname of the vtype property value. Note
    /// that this value can be changed after creation and the GESExtractable.asset value
    /// will be updated when needed.
    ///
    /// ## Properties
    ///
    ///
    /// #### `vtype`
    ///  a [`VideoStandardTransitionType`][crate::VideoStandardTransitionType] representing the wipe to use
    ///
    /// Readable | Writeable | Construct
    /// <details><summary><h4>Clip</h4></summary>
    ///
    ///
    /// #### `duration-limit`
    ///  The maximum [`duration`][struct@crate::TimelineElement#duration] that can be *currently* set
    /// for the clip, taking into account the [`in-point`][struct@crate::TimelineElement#in-point],
    /// [`max-duration`][struct@crate::TimelineElement#max-duration], [`active`][struct@crate::TrackElement#active], and
    /// [`track`][struct@crate::TrackElement#track] properties of its children, as well as any
    /// time effects. If there is no limit, this will be set to
    /// `GST_CLOCK_TIME_NONE`.
    ///
    /// Note that whilst a clip has no children in any tracks, the limit will
    /// be unknown, and similarly set to `GST_CLOCK_TIME_NONE`.
    ///
    /// If the duration-limit would ever go below the current
    /// [`duration`][struct@crate::TimelineElement#duration] of the clip due to a change in the above
    /// variables, its [`duration`][struct@crate::TimelineElement#duration] will be set to the new
    /// limit.
    ///
    /// Readable
    ///
    ///
    /// #### `layer`
    ///  The layer this clip lies in.
    ///
    /// If you want to connect to this property's [`notify`][struct@crate::glib::Object#notify] signal,
    /// you should connect to it with `g_signal_connect_after()` since the
    /// signal emission may be stopped internally.
    ///
    /// Readable
    ///
    ///
    /// #### `supported-formats`
    ///  The [`TrackType`][crate::TrackType]-s that the clip supports, which it can create
    /// [`TrackElement`][crate::TrackElement]-s for. Note that this can be a combination of
    /// [`TrackType`][crate::TrackType] flags to indicate support for several
    /// [`track-type`][struct@crate::TrackElement#track-type] elements.
    ///
    /// Readable | Writeable | Construct
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `height`
    ///  The span of the container's children's [`priority`][struct@crate::TimelineElement#priority]
    /// values, which is the number of integers that lie between (inclusive)
    /// the minimum and maximum priorities found amongst the container's
    /// children (maximum - minimum + 1).
    ///
    /// Readable
    /// </details>
    /// <details><summary><h4>TimelineElement</h4></summary>
    ///
    ///
    /// #### `duration`
    ///  The duration that the element is in effect for in the timeline (a
    /// time difference in nanoseconds using the time coordinates of the
    /// timeline). For example, for a source element, this would determine
    /// for how long it should output its internal content for. For an
    /// operation element, this would determine for how long its effect
    /// should be applied to any source content.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `in-point`
    ///  The initial offset to use internally when outputting content (in
    /// nanoseconds, but in the time coordinates of the internal content).
    ///
    /// For example, for a [`VideoUriSource`][crate::VideoUriSource] that references some media
    /// file, the "internal content" is the media file data, and the
    /// in-point would correspond to some timestamp in the media file.
    /// When playing the timeline, and when the element is first reached at
    /// timeline-time [`start`][struct@crate::TimelineElement#start], it will begin outputting the
    /// data from the timestamp in-point **onwards**, until it reaches the
    /// end of its [`duration`][struct@crate::TimelineElement#duration] in the timeline.
    ///
    /// For elements that have no internal content, this should be kept
    /// as 0.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `max-duration`
    ///  The full duration of internal content that is available (a time
    /// difference in nanoseconds using the time coordinates of the internal
    /// content).
    ///
    /// This will act as a cap on the [`in-point`][struct@crate::TimelineElement#in-point] of the
    /// element (which is in the same time coordinates), and will sometimes
    /// be used to limit the [`duration`][struct@crate::TimelineElement#duration] of the element in
    /// the timeline.
    ///
    /// For example, for a [`VideoUriSource`][crate::VideoUriSource] that references some media
    /// file, this would be the length of the media file.
    ///
    /// For elements that have no internal content, or whose content is
    /// indefinite, this should be kept as `GST_CLOCK_TIME_NONE`.
    ///
    /// Readable | Writeable | Construct
    ///
    ///
    /// #### `name`
    ///  The name of the element. This should be unique within its timeline.
    ///
    /// Readable | Writeable | Construct
    ///
    ///
    /// #### `parent`
    ///  The parent container of the element.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `priority`
    ///  The priority of the element.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `serialize`
    ///  Whether the element should be serialized.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `start`
    ///  The starting position of the element in the timeline (in nanoseconds
    /// and in the time coordinates of the timeline). For example, for a
    /// source element, this would determine the time at which it should
    /// start outputting its internal content. For an operation element, this
    /// would determine the time at which it should start applying its effect
    /// to any source content.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `timeline`
    ///  The timeline that the element lies within.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// # Implements
    ///
    /// [`TransitionClipExt`][trait@crate::prelude::TransitionClipExt], [`BaseTransitionClipExt`][trait@crate::prelude::BaseTransitionClipExt], [`OperationClipExt`][trait@crate::prelude::OperationClipExt], [`ClipExt`][trait@crate::prelude::ClipExt], [`GESContainerExt`][trait@crate::prelude::GESContainerExt], [`TimelineElementExt`][trait@crate::prelude::TimelineElementExt], [`trait@glib::ObjectExt`], [`ExtractableExt`][trait@crate::prelude::ExtractableExt], [`MetaContainerExt`][trait@crate::prelude::MetaContainerExt], [`TimelineElementExtManual`][trait@crate::prelude::TimelineElementExtManual]
    #[doc(alias = "GESTransitionClip")]
    pub struct TransitionClip(Object<ffi::GESTransitionClip, ffi::GESTransitionClipClass>) @extends BaseTransitionClip, OperationClip, Clip, Container, TimelineElement, @implements Extractable, MetaContainer;

    match fn {
        type_ => || ffi::ges_transition_clip_get_type(),
    }
}

impl TransitionClip {
    pub const NONE: Option<&'static TransitionClip> = None;

    /// Creates a new [`TransitionClip`][crate::TransitionClip].
    /// ## `vtype`
    /// the type of transition to create
    ///
    /// # Returns
    ///
    /// a newly created [`TransitionClip`][crate::TransitionClip],
    /// or [`None`] if something went wrong.
    #[doc(alias = "ges_transition_clip_new")]
    pub fn new(vtype: VideoStandardTransitionType) -> Option<TransitionClip> {
        assert_initialized_main_thread!();
        unsafe { from_glib_none(ffi::ges_transition_clip_new(vtype.into_glib())) }
    }

    /// Creates a new [`TransitionClip`][crate::TransitionClip] for the provided `nick`.
    /// ## `nick`
    /// a string representing the type of transition to create
    ///
    /// # Returns
    ///
    /// The newly created [`TransitionClip`][crate::TransitionClip],
    /// or [`None`] if something went wrong
    #[doc(alias = "ges_transition_clip_new_for_nick")]
    #[doc(alias = "new_for_nick")]
    pub fn for_nick(nick: &str) -> Option<TransitionClip> {
        assert_initialized_main_thread!();
        unsafe { from_glib_none(ffi::ges_transition_clip_new_for_nick(nick.to_glib_none().0)) }
    }
}

mod sealed {
    pub trait Sealed {}
    impl<T: super::IsA<super::TransitionClip>> Sealed for T {}
}

/// Trait containing all [`struct@TransitionClip`] methods.
///
/// # Implementors
///
/// [`TransitionClip`][struct@crate::TransitionClip]
pub trait TransitionClipExt: IsA<TransitionClip> + sealed::Sealed + 'static {
    /// a [`VideoStandardTransitionType`][crate::VideoStandardTransitionType] representing the wipe to use
    fn vtype(&self) -> VideoStandardTransitionType {
        ObjectExt::property(self.as_ref(), "vtype")
    }

    /// a [`VideoStandardTransitionType`][crate::VideoStandardTransitionType] representing the wipe to use
    fn set_vtype(&self, vtype: VideoStandardTransitionType) {
        ObjectExt::set_property(self.as_ref(), "vtype", vtype)
    }

    #[doc(alias = "vtype")]
    fn connect_vtype_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_vtype_trampoline<
            P: IsA<TransitionClip>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GESTransitionClip,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(TransitionClip::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::vtype\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_vtype_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<TransitionClip>> TransitionClipExt for O {}