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// 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::Object;
use crate::Stream;
use glib::translate::*;

glib::wrapper! {
    /// A collection of [`Stream`][crate::Stream] that are available.
    ///
    /// A [`StreamCollection`][crate::StreamCollection] will be provided by elements that can make those
    /// streams available. Applications can use the collection to show the user
    /// what streams are available by using [`stream()`][Self::stream()]
    ///
    /// Once posted, a [`StreamCollection`][crate::StreamCollection] is immutable. Updates are made by sending
    /// a new [`StreamCollection`][crate::StreamCollection] message, which may or may not share some of
    /// the [`Stream`][crate::Stream] objects from the collection it replaces. The receiver can check
    /// the sender of a stream collection message to know which collection is
    /// obsoleted.
    ///
    /// Several elements in a pipeline can provide [`StreamCollection`][crate::StreamCollection].
    ///
    /// Applications can activate streams from a collection by using the
    /// [`EventType::SelectStreams`][crate::EventType::SelectStreams] event on a pipeline, bin or element.
    ///
    /// # Implements
    ///
    /// [`GstObjectExt`][trait@crate::prelude::GstObjectExt], [`trait@glib::ObjectExt`]
    #[doc(alias = "GstStreamCollection")]
    pub struct StreamCollection(Object<ffi::GstStreamCollection, ffi::GstStreamCollectionClass>) @extends Object;

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

impl StreamCollection {
    /// Get the number of streams this collection contains
    ///
    /// # Returns
    ///
    /// The number of streams that `self` contains
    #[doc(alias = "gst_stream_collection_get_size")]
    #[doc(alias = "get_size")]
    pub fn size(&self) -> u32 {
        unsafe { ffi::gst_stream_collection_get_size(self.to_glib_none().0) }
    }

    /// Retrieve the [`Stream`][crate::Stream] with index `index` from the collection.
    ///
    /// The caller should not modify the returned [`Stream`][crate::Stream]
    /// ## `index`
    /// Index of the stream to retrieve
    ///
    /// # Returns
    ///
    /// A [`Stream`][crate::Stream]
    #[doc(alias = "gst_stream_collection_get_stream")]
    #[doc(alias = "get_stream")]
    pub fn stream(&self, index: u32) -> Option<Stream> {
        unsafe {
            from_glib_none(ffi::gst_stream_collection_get_stream(
                self.to_glib_none().0,
                index,
            ))
        }
    }

    /// Returns the upstream id of the `self`.
    ///
    /// # Returns
    ///
    /// The upstream id
    #[doc(alias = "gst_stream_collection_get_upstream_id")]
    #[doc(alias = "get_upstream_id")]
    pub fn upstream_id(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gst_stream_collection_get_upstream_id(
                self.to_glib_none().0,
            ))
        }
    }

    //#[doc(alias = "stream-notify")]
    //pub fn connect_stream_notify<Unsupported or ignored types>(&self, detail: Option<&str>, f: F) -> SignalHandlerId {
    //    Ignored p0: GObject.ParamSpec
    //}
}

unsafe impl Send for StreamCollection {}
unsafe impl Sync for StreamCollection {}