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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)
// DO NOT EDIT

use Bus;
use Caps;
use Device;
use Object;
use ffi;
use glib;
use glib::StaticType;
use glib::Value;
use glib::object::Downcast;
use glib::object::IsA;
use glib::signal::SignalHandlerId;
use glib::signal::connect;
use glib::translate::*;
use glib_ffi;
use gobject_ffi;
use std::boxed::Box as Box_;
use std::mem;
use std::mem::transmute;
use std::ptr;

glib_wrapper! {
    /// Applications should create a `DeviceMonitor` when they want
    /// to probe, list and monitor devices of a specific type. The
    /// `DeviceMonitor` will create the appropriate
    /// `DeviceProvider` objects and manage them. It will then post
    /// messages on its `Bus` for devices that have been added and
    /// removed.
    ///
    /// The device monitor will monitor all devices matching the filters that
    /// the application has set.
    ///
    /// The basic use pattern of a device monitor is as follows:
    ///
    /// ```text
    ///   static gboolean
    ///   my_bus_func (GstBus * bus, GstMessage * message, gpointer user_data)
    ///   {
    ///      GstDevice *device;
    ///      gchar *name;
    ///
    ///      switch (GST_MESSAGE_TYPE (message)) {
    ///        case GST_MESSAGE_DEVICE_ADDED:
    ///          gst_message_parse_device_added (message, &device);
    ///          name = gst_device_get_display_name (device);
    ///          g_print("Device added: %s\n", name);
    ///          g_free (name);
    ///          gst_object_unref (device);
    ///          break;
    ///        case GST_MESSAGE_DEVICE_REMOVED:
    ///          gst_message_parse_device_removed (message, &device);
    ///          name = gst_device_get_display_name (device);
    ///          g_print("Device removed: %s\n", name);
    ///          g_free (name);
    ///          gst_object_unref (device);
    ///          break;
    ///        default:
    ///          break;
    ///      }
    ///
    ///      return G_SOURCE_CONTINUE;
    ///   }
    ///
    ///   GstDeviceMonitor *
    ///   setup_raw_video_source_device_monitor (void) {
    ///      GstDeviceMonitor *monitor;
    ///      GstBus *bus;
    ///      GstCaps *caps;
    ///
    ///      monitor = gst_device_monitor_new ();
    ///
    ///      bus = gst_device_monitor_get_bus (monitor);
    ///      gst_bus_add_watch (bus, my_bus_func, NULL);
    ///      gst_object_unref (bus);
    ///
    ///      caps = gst_caps_new_empty_simple ("video/x-raw");
    ///      gst_device_monitor_add_filter (monitor, "Video/Source", caps);
    ///      gst_caps_unref (caps);
    ///
    ///      gst_device_monitor_start (monitor);
    ///
    ///      return monitor;
    ///   }
    /// ```
    ///
    /// # Implements
    ///
    /// [`DeviceMonitorExt`](trait.DeviceMonitorExt.html), [`GstObjectExt`](trait.GstObjectExt.html), [`glib::object::ObjectExt`](../glib/object/trait.ObjectExt.html)
    pub struct DeviceMonitor(Object<ffi::GstDeviceMonitor, ffi::GstDeviceMonitorClass>): Object;

    match fn {
        get_type => || ffi::gst_device_monitor_get_type(),
    }
}

unsafe impl Send for DeviceMonitor {}
unsafe impl Sync for DeviceMonitor {}

/// Trait containing all `DeviceMonitor` methods.
///
/// # Implementors
///
/// [`DeviceMonitor`](struct.DeviceMonitor.html)
pub trait DeviceMonitorExt {
    /// Adds a filter for which `Device` will be monitored, any device that matches
    /// all these classes and the `Caps` will be returned.
    ///
    /// If this function is called multiple times to add more filters, each will be
    /// matched independently. That is, adding more filters will not further restrict
    /// what devices are matched.
    ///
    /// The `Caps` supported by the device as returned by `DeviceExt::get_caps` are
    /// not intersected with caps filters added using this function.
    ///
    /// Filters must be added before the `DeviceMonitor` is started.
    /// ## `classes`
    /// device classes to use as filter or `None` for any class
    /// ## `caps`
    /// the `Caps` to filter or `None` for ANY
    ///
    /// # Returns
    ///
    /// The id of the new filter or 0 if no provider matched the filter's
    ///  classes.
    fn add_filter<'a, 'b, P: Into<Option<&'a str>>, Q: Into<Option<&'b Caps>>>(&self, classes: P, caps: Q) -> u32;

    /// Gets the `Bus` of this `DeviceMonitor`
    ///
    /// # Returns
    ///
    /// a `Bus`
    fn get_bus(&self) -> Bus;

    /// Gets a list of devices from all of the relevant monitors. This may actually
    /// probe the hardware if the monitor is not currently started.
    ///
    /// # Returns
    ///
    /// a `glib::List` of
    ///  `Device`
    fn get_devices(&self) -> Vec<Device>;

    /// Get a list of the currently selected device provider factories.
    ///
    /// This
    ///
    /// # Returns
    ///
    ///
    ///  A list of device provider factory names that are currently being
    ///  monitored by `self` or `None` when nothing is being monitored.
    fn get_providers(&self) -> Vec<String>;

    /// Get if `self` is curretly showing all devices, even those from hidden
    /// providers.
    ///
    /// # Returns
    ///
    /// `true` when all devices will be shown.
    fn get_show_all_devices(&self) -> bool;

    /// Removes a filter from the `DeviceMonitor` using the id that was returned
    /// by `DeviceMonitorExt::add_filter`.
    /// ## `filter_id`
    /// the id of the filter
    ///
    /// # Returns
    ///
    /// `true` of the filter id was valid, `false` otherwise
    fn remove_filter(&self, filter_id: u32) -> bool;

    /// Set if all devices should be visible, even those devices from hidden
    /// providers. Setting `show_all` to true might show some devices multiple times.
    /// ## `show_all`
    /// show all devices
    fn set_show_all_devices(&self, show_all: bool);

    /// Starts monitoring the devices, one this has succeeded, the
    /// `MessageType::DeviceAdded` and `MessageType::DeviceRemoved` messages
    /// will be emitted on the bus when the list of devices changes.
    ///
    /// # Returns
    ///
    /// `true` if the device monitoring could be started
    fn start(&self) -> Result<(), glib::error::BoolError>;

    /// Stops monitoring the devices.
    fn stop(&self);

    fn get_property_show_all(&self) -> bool;

    fn set_property_show_all(&self, show_all: bool);

    fn connect_property_show_all_notify<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<DeviceMonitor> + IsA<glib::object::Object>> DeviceMonitorExt for O {
    fn add_filter<'a, 'b, P: Into<Option<&'a str>>, Q: Into<Option<&'b Caps>>>(&self, classes: P, caps: Q) -> u32 {
        let classes = classes.into();
        let classes = classes.to_glib_none();
        let caps = caps.into();
        let caps = caps.to_glib_none();
        unsafe {
            ffi::gst_device_monitor_add_filter(self.to_glib_none().0, classes.0, caps.0)
        }
    }

    fn get_bus(&self) -> Bus {
        unsafe {
            from_glib_full(ffi::gst_device_monitor_get_bus(self.to_glib_none().0))
        }
    }

    fn get_devices(&self) -> Vec<Device> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(ffi::gst_device_monitor_get_devices(self.to_glib_none().0))
        }
    }

    fn get_providers(&self) -> Vec<String> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(ffi::gst_device_monitor_get_providers(self.to_glib_none().0))
        }
    }

    fn get_show_all_devices(&self) -> bool {
        unsafe {
            from_glib(ffi::gst_device_monitor_get_show_all_devices(self.to_glib_none().0))
        }
    }

    fn remove_filter(&self, filter_id: u32) -> bool {
        unsafe {
            from_glib(ffi::gst_device_monitor_remove_filter(self.to_glib_none().0, filter_id))
        }
    }

    fn set_show_all_devices(&self, show_all: bool) {
        unsafe {
            ffi::gst_device_monitor_set_show_all_devices(self.to_glib_none().0, show_all.to_glib());
        }
    }

    fn start(&self) -> Result<(), glib::error::BoolError> {
        unsafe {
            glib::error::BoolError::from_glib(ffi::gst_device_monitor_start(self.to_glib_none().0), "Failed to start")
        }
    }

    fn stop(&self) {
        unsafe {
            ffi::gst_device_monitor_stop(self.to_glib_none().0);
        }
    }

    fn get_property_show_all(&self) -> bool {
        unsafe {
            let mut value = Value::from_type(<bool as StaticType>::static_type());
            gobject_ffi::g_object_get_property(self.to_glib_none().0, "show-all".to_glib_none().0, value.to_glib_none_mut().0);
            value.get().unwrap()
        }
    }

    fn set_property_show_all(&self, show_all: bool) {
        unsafe {
            gobject_ffi::g_object_set_property(self.to_glib_none().0, "show-all".to_glib_none().0, Value::from(&show_all).to_glib_none().0);
        }
    }

    fn connect_property_show_all_notify<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe {
            let f: Box_<Box_<Fn(&Self) + Send + Sync + 'static>> = Box_::new(Box_::new(f));
            connect(self.to_glib_none().0, "notify::show-all",
                transmute(notify_show_all_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
        }
    }
}

unsafe extern "C" fn notify_show_all_trampoline<P>(this: *mut ffi::GstDeviceMonitor, _param_spec: glib_ffi::gpointer, f: glib_ffi::gpointer)
where P: IsA<DeviceMonitor> {
    let f: &&(Fn(&P) + Send + Sync + 'static) = transmute(f);
    f(&DeviceMonitor::from_glib_borrow(this).downcast_unchecked())
}