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// Take a look at the license at the top of the repository in the LICENSE file.

use crate::DirectoryList;
use glib::translate::*;
use glib::{Cast, IsA, ToValue};

impl DirectoryList {
    /// Gets the IO priority set via [`set_io_priority()`][Self::set_io_priority()].
    ///
    /// # Returns
    ///
    /// The IO priority.
    #[doc(alias = "gtk_directory_list_get_io_priority")]
    #[doc(alias = "get_io_priority")]
    pub fn io_priority(&self) -> glib::Priority {
        unsafe {
            from_glib(ffi::gtk_directory_list_get_io_priority(
                self.to_glib_none().0,
            ))
        }
    }

    /// Sets the IO priority to use while loading directories.
    ///
    /// Setting the priority while `self` is loading will reprioritize the
    /// ongoing load as soon as possible.
    ///
    /// The default IO priority is `G_PRIORITY_DEFAULT`, which is higher than
    /// the GTK redraw priority. If you are loading a lot of directories in
    /// parallel, lowering it to something like `G_PRIORITY_DEFAULT_IDLE`
    /// may increase responsiveness.
    /// ## `io_priority`
    /// IO priority to use
    #[doc(alias = "gtk_directory_list_set_io_priority")]
    pub fn set_io_priority(&self, io_priority: glib::Priority) {
        unsafe {
            ffi::gtk_directory_list_set_io_priority(self.to_glib_none().0, io_priority.into_glib());
        }
    }
}

#[derive(Clone, Default)]
pub struct DirectoryListBuilder {
    attributes: Option<String>,
    file: Option<gio::File>,
    io_priority: Option<i32>,
    monitored: Option<bool>,
}

impl DirectoryListBuilder {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn build(self) -> DirectoryList {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref attributes) = self.attributes {
            properties.push(("attributes", attributes));
        }
        if let Some(ref file) = self.file {
            properties.push(("file", file));
        }
        if let Some(ref io_priority) = self.io_priority {
            properties.push(("io-priority", io_priority));
        }
        if let Some(ref monitored) = self.monitored {
            properties.push(("monitored", monitored));
        }
        glib::Object::new::<DirectoryList>(&properties)
            .expect("Failed to create an instance of DirectoryList")
    }

    pub fn attributes(mut self, attributes: &str) -> Self {
        self.attributes = Some(attributes.to_string());
        self
    }

    pub fn file<P: IsA<gio::File>>(mut self, file: &P) -> Self {
        self.file = Some(file.clone().upcast());
        self
    }

    pub fn io_priority(mut self, io_priority: glib::Priority) -> Self {
        self.io_priority = Some(io_priority.into_glib());
        self
    }

    pub fn monitored(mut self, monitored: bool) -> Self {
        self.monitored = Some(monitored);
        self
    }
}