// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use ges_sys;
use glib;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib_sys;
use gst;
use std::boxed::Box as Box_;
use std::mem::transmute;
use Asset;
use Clip;
use Extractable;
use Timeline;
use TrackType;

glib_wrapper! {
    /// Responsible for the ordering of the various contained Clip(s). A
    /// timeline layer has a "priority" property, which is used to manage the
    /// priorities of individual Clips. Two layers should not have the
    /// same priority within a given timeline.
    ///
    /// # Implements
    ///
    /// [`LayerExt`](trait.LayerExt.html), [`glib::object::ObjectExt`](../glib/object/trait.ObjectExt.html), [`ExtractableExt`](trait.ExtractableExt.html)
    pub struct Layer(Object<ges_sys::GESLayer, ges_sys::GESLayerClass, LayerClass>) @implements Extractable;

    match fn {
        get_type => || ges_sys::ges_layer_get_type(),
    }
}

impl Layer {
    /// Creates a new `Layer`.
    ///
    /// # Returns
    ///
    /// A new `Layer`
    pub fn new() -> Layer {
        assert_initialized_main_thread!();
        unsafe { from_glib_none(ges_sys::ges_layer_new()) }
    }
}

impl Default for Layer {
    fn default() -> Self {
        Self::new()
    }
}

pub const NONE_LAYER: Option<&Layer> = None;

/// Trait containing all `Layer` methods.
///
/// # Implementors
///
/// [`Layer`](struct.Layer.html)
pub trait LayerExt: 'static {
    /// Creates Clip from asset, adds it to layer and
    /// returns a reference to it.
    /// ## `asset`
    /// The asset to add to
    /// ## `start`
    /// The start value to set on the new `Clip`,
    /// if `start` == GST_CLOCK_TIME_NONE, it will be set to
    /// the current duration of `self`
    /// ## `inpoint`
    /// The inpoint value to set on the new `Clip`
    /// ## `duration`
    /// The duration value to set on the new `Clip`
    /// ## `track_types`
    /// The `TrackType` to set on the the new `Clip`
    ///
    /// # Returns
    ///
    /// Created `Clip`
    fn add_asset<P: IsA<Asset>>(
        &self,
        asset: &P,
        start: gst::ClockTime,
        inpoint: gst::ClockTime,
        duration: gst::ClockTime,
        track_types: TrackType,
    ) -> Result<Clip, glib::BoolError>;

    /// Adds the given clip to the layer. Sets the clip's parent, and thus
    /// takes ownership of the clip.
    ///
    /// An clip can only be added to one layer.
    ///
    /// Calling this method will construct and properly set all the media related
    /// elements on `clip`. If you need to know when those objects (actually `TrackElement`)
    /// are constructed, you should connect to the container::child-added signal which
    /// is emited right after those elements are ready to be used.
    /// ## `clip`
    /// the `Clip` to add.
    ///
    /// # Returns
    ///
    /// `true` if the clip was properly added to the layer, or `false`
    /// if the `self` refuses to add the clip.
    fn add_clip<P: IsA<Clip>>(&self, clip: &P) -> Result<(), glib::error::BoolError>;

    /// Gets whether transitions are automatically added when objects
    /// overlap or not.
    ///
    /// # Returns
    ///
    /// `true` if transitions are automatically added, else `false`.
    fn get_auto_transition(&self) -> bool;

    /// Get the clips this layer contains.
    ///
    /// # Returns
    ///
    /// a `glib::List` of
    /// clips. The user is responsible for
    /// unreffing the contained objects and freeing the list.
    fn get_clips(&self) -> Vec<Clip>;

    /// Gets the clips which appear between `start` and `end` on `self`.
    /// ## `start`
    /// start of the interval
    /// ## `end`
    /// end of the interval
    ///
    /// # Returns
    ///
    /// a `glib::List` of clips intersecting [`start`, `end`) interval on `self`.
    fn get_clips_in_interval(&self, start: gst::ClockTime, end: gst::ClockTime) -> Vec<Clip>;

    /// Lets you retrieve the duration of the layer, which means
    /// the end time of the last clip inside it
    ///
    /// # Returns
    ///
    /// The duration of a layer
    fn get_duration(&self) -> gst::ClockTime;

    /// Get the priority of `self` within the timeline.
    ///
    /// # Returns
    ///
    /// The priority of the `self` within the timeline.
    fn get_priority(&self) -> u32;

    /// Get the `Timeline` in which `Layer` currently is.
    ///
    /// # Returns
    ///
    /// the `Timeline` in which `Layer`
    /// currently is or `None` if not in any timeline yet.
    fn get_timeline(&self) -> Option<Timeline>;

    /// Convenience method to check if `self` is empty (doesn't contain any clip),
    /// or not.
    ///
    /// # Returns
    ///
    /// `true` if `self` is empty, `false` if it already contains at least
    /// one `Clip`
    fn is_empty(&self) -> bool;

    /// Removes the given `clip` from the `self` and unparents it.
    /// Unparenting it means the reference owned by `self` on the `clip` will be
    /// removed. If you wish to use the `clip` after this function, make sure you
    /// call `gst::ObjectExt::ref` before removing it from the `self`.
    /// ## `clip`
    /// the `Clip` to remove
    ///
    /// # Returns
    ///
    /// `true` if the clip could be removed, `false` if the layer does
    /// not want to remove the clip.
    fn remove_clip<P: IsA<Clip>>(&self, clip: &P) -> Result<(), glib::error::BoolError>;

    /// Sets the layer to the given `auto_transition`. See the documentation of the
    /// property auto_transition for more information.
    /// ## `auto_transition`
    /// whether the auto_transition is active
    fn set_auto_transition(&self, auto_transition: bool);

    /// Sets the layer to the given `priority`. See the documentation of the
    /// priority property for more information.
    ///
    /// # Deprecated since 1.16
    ///
    /// use `TimelineExt::move_layer` instead. This deprecation means
    /// that you will not need to handle layer priorities at all yourself, GES
    /// will make sure there is never 'gaps' between layer priorities.
    /// ## `priority`
    /// the priority to set
    #[cfg_attr(feature = "v1_16", deprecated)]
    fn set_priority(&self, priority: u32);

    fn set_timeline<P: IsA<Timeline>>(&self, timeline: &P);

    /// Will be emitted after the clip was added to the layer.
    /// ## `clip`
    /// the `Clip` that was added.
    fn connect_clip_added<F: Fn(&Self, &Clip) + 'static>(&self, f: F) -> SignalHandlerId;

    /// Will be emitted after the clip was removed from the layer.
    /// ## `clip`
    /// the `Clip` that was removed
    fn connect_clip_removed<F: Fn(&Self, &Clip) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_auto_transition_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    #[cfg_attr(feature = "v1_16", deprecated)]
    fn connect_property_priority_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Layer>> LayerExt for O {
    fn add_asset<P: IsA<Asset>>(
        &self,
        asset: &P,
        start: gst::ClockTime,
        inpoint: gst::ClockTime,
        duration: gst::ClockTime,
        track_types: TrackType,
    ) -> Result<Clip, glib::BoolError> {
        unsafe {
            Option::<_>::from_glib_none(ges_sys::ges_layer_add_asset(
                self.as_ref().to_glib_none().0,
                asset.as_ref().to_glib_none().0,
                start.to_glib(),
                inpoint.to_glib(),
                duration.to_glib(),
                track_types.to_glib(),
            ))
            .ok_or_else(|| glib_bool_error!("Failed to add asset"))
        }
    }

    fn add_clip<P: IsA<Clip>>(&self, clip: &P) -> Result<(), glib::error::BoolError> {
        unsafe {
            glib_result_from_gboolean!(
                ges_sys::ges_layer_add_clip(
                    self.as_ref().to_glib_none().0,
                    clip.as_ref().to_glib_none().0
                ),
                "Failed to add clip"
            )
        }
    }

    fn get_auto_transition(&self) -> bool {
        unsafe {
            from_glib(ges_sys::ges_layer_get_auto_transition(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_clips(&self) -> Vec<Clip> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(ges_sys::ges_layer_get_clips(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_clips_in_interval(&self, start: gst::ClockTime, end: gst::ClockTime) -> Vec<Clip> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(ges_sys::ges_layer_get_clips_in_interval(
                self.as_ref().to_glib_none().0,
                start.to_glib(),
                end.to_glib(),
            ))
        }
    }

    fn get_duration(&self) -> gst::ClockTime {
        unsafe {
            from_glib(ges_sys::ges_layer_get_duration(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_priority(&self) -> u32 {
        unsafe { ges_sys::ges_layer_get_priority(self.as_ref().to_glib_none().0) }
    }

    fn get_timeline(&self) -> Option<Timeline> {
        unsafe {
            from_glib_none(ges_sys::ges_layer_get_timeline(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_empty(&self) -> bool {
        unsafe { from_glib(ges_sys::ges_layer_is_empty(self.as_ref().to_glib_none().0)) }
    }

    fn remove_clip<P: IsA<Clip>>(&self, clip: &P) -> Result<(), glib::error::BoolError> {
        unsafe {
            glib_result_from_gboolean!(
                ges_sys::ges_layer_remove_clip(
                    self.as_ref().to_glib_none().0,
                    clip.as_ref().to_glib_none().0
                ),
                "Failed to remove clip"
            )
        }
    }

    fn set_auto_transition(&self, auto_transition: bool) {
        unsafe {
            ges_sys::ges_layer_set_auto_transition(
                self.as_ref().to_glib_none().0,
                auto_transition.to_glib(),
            );
        }
    }

    fn set_priority(&self, priority: u32) {
        unsafe {
            ges_sys::ges_layer_set_priority(self.as_ref().to_glib_none().0, priority);
        }
    }

    fn set_timeline<P: IsA<Timeline>>(&self, timeline: &P) {
        unsafe {
            ges_sys::ges_layer_set_timeline(
                self.as_ref().to_glib_none().0,
                timeline.as_ref().to_glib_none().0,
            );
        }
    }

    fn connect_clip_added<F: Fn(&Self, &Clip) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn clip_added_trampoline<P, F: Fn(&P, &Clip) + 'static>(
            this: *mut ges_sys::GESLayer,
            clip: *mut ges_sys::GESClip,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Layer>,
        {
            let f: &F = &*(f as *const F);
            f(
                &Layer::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(clip),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"clip-added\0".as_ptr() as *const _,
                Some(transmute(clip_added_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_clip_removed<F: Fn(&Self, &Clip) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn clip_removed_trampoline<P, F: Fn(&P, &Clip) + 'static>(
            this: *mut ges_sys::GESLayer,
            clip: *mut ges_sys::GESClip,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Layer>,
        {
            let f: &F = &*(f as *const F);
            f(
                &Layer::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(clip),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"clip-removed\0".as_ptr() as *const _,
                Some(transmute(clip_removed_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_auto_transition_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_auto_transition_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut ges_sys::GESLayer,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Layer>,
        {
            let f: &F = &*(f as *const F);
            f(&Layer::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::auto-transition\0".as_ptr() as *const _,
                Some(transmute(
                    notify_auto_transition_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_priority_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_priority_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut ges_sys::GESLayer,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Layer>,
        {
            let f: &F = &*(f as *const F);
            f(&Layer::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::priority\0".as_ptr() as *const _,
                Some(transmute(notify_priority_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }
}