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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::ClockTime;
use crate::Object;
use glib::object::IsA;
use glib::translate::*;
use glib::StaticType;

glib::wrapper! {
    /// A base class for value mapping objects that attaches control sources to [`glib::Object`][crate::glib::Object]
    /// properties. Such an object is taking one or more [`ControlSource`][crate::ControlSource] instances,
    /// combines them and maps the resulting value to the type and value range of the
    /// bound property.
    ///
    /// This is an Abstract Base Class, you cannot instantiate it.
    ///
    /// # Implements
    ///
    /// [`ControlBindingExt`][trait@crate::prelude::ControlBindingExt], [`GstObjectExt`][trait@crate::prelude::GstObjectExt], [`trait@glib::ObjectExt`], [`ControlBindingExtManual`][trait@crate::prelude::ControlBindingExtManual]
    #[doc(alias = "GstControlBinding")]
    pub struct ControlBinding(Object<ffi::GstControlBinding, ffi::GstControlBindingClass>) @extends Object;

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

unsafe impl Send for ControlBinding {}
unsafe impl Sync for ControlBinding {}

pub const NONE_CONTROL_BINDING: Option<&ControlBinding> = None;

/// Trait containing all [`struct@ControlBinding`] methods.
///
/// # Implementors
///
/// [`ControlBinding`][struct@crate::ControlBinding]
pub trait ControlBindingExt: 'static {
    /// Gets the value for the given controlled property at the requested time.
    /// ## `timestamp`
    /// the time the control-change should be read from
    ///
    /// # Returns
    ///
    /// the GValue of the property at the given time,
    /// or [`None`] if the property isn't controlled.
    #[doc(alias = "gst_control_binding_get_value")]
    #[doc(alias = "get_value")]
    fn value(&self, timestamp: ClockTime) -> Option<glib::Value>;

    //#[doc(alias = "gst_control_binding_get_value_array")]
    //#[doc(alias = "get_value_array")]
    //fn is_value_array(&self, timestamp: impl Into<Option<ClockTime>>, interval: impl Into<Option<ClockTime>>, values: /*Unimplemented*/&[&Fundamental: Pointer]) -> bool;

    /// Checks if the control binding is disabled.
    ///
    /// # Returns
    ///
    /// [`true`] if the binding is inactive
    #[doc(alias = "gst_control_binding_is_disabled")]
    fn is_disabled(&self) -> bool;

    /// This function is used to disable a control binding for some time, i.e.
    /// [`GstObjectExt::sync_values()`][crate::prelude::GstObjectExt::sync_values()] will do nothing.
    /// ## `disabled`
    /// boolean that specifies whether to disable the controller
    /// or not.
    #[doc(alias = "gst_control_binding_set_disabled")]
    fn set_disabled(&self, disabled: bool);

    /// Sets the property of the `object`, according to the `GstControlSources` that
    /// handles it and for the given timestamp.
    ///
    /// If this function fails, it is most likely the application developers fault.
    /// Most probably the control sources are not setup correctly.
    /// ## `object`
    /// the object that has controlled properties
    /// ## `timestamp`
    /// the time that should be processed
    /// ## `last_sync`
    /// the last time this was called
    ///
    /// # Returns
    ///
    /// [`true`] if the controller value could be applied to the object
    /// property, [`false`] otherwise
    #[doc(alias = "gst_control_binding_sync_values")]
    fn sync_values<P: IsA<Object>>(
        &self,
        object: &P,
        timestamp: ClockTime,
        last_sync: impl Into<Option<ClockTime>>,
    ) -> bool;

    fn object(&self) -> Option<Object>;
}

impl<O: IsA<ControlBinding>> ControlBindingExt for O {
    fn value(&self, timestamp: ClockTime) -> Option<glib::Value> {
        unsafe {
            from_glib_full(ffi::gst_control_binding_get_value(
                self.as_ref().to_glib_none().0,
                timestamp.into_glib(),
            ))
        }
    }

    //fn is_value_array(&self, timestamp: impl Into<Option<ClockTime>>, interval: impl Into<Option<ClockTime>>, values: /*Unimplemented*/&[&Fundamental: Pointer]) -> bool {
    //    unsafe { TODO: call ffi:gst_control_binding_get_value_array() }
    //}

    fn is_disabled(&self) -> bool {
        unsafe {
            from_glib(ffi::gst_control_binding_is_disabled(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn set_disabled(&self, disabled: bool) {
        unsafe {
            ffi::gst_control_binding_set_disabled(
                self.as_ref().to_glib_none().0,
                disabled.into_glib(),
            );
        }
    }

    fn sync_values<P: IsA<Object>>(
        &self,
        object: &P,
        timestamp: ClockTime,
        last_sync: impl Into<Option<ClockTime>>,
    ) -> bool {
        unsafe {
            from_glib(ffi::gst_control_binding_sync_values(
                self.as_ref().to_glib_none().0,
                object.as_ref().to_glib_none().0,
                timestamp.into_glib(),
                last_sync.into().into_glib(),
            ))
        }
    }

    fn object(&self) -> Option<Object> {
        unsafe {
            let mut value = glib::Value::from_type(<Object as StaticType>::static_type());
            glib::gobject_ffi::g_object_get_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"object\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `object` getter")
        }
    }
}