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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.git)
// from webkit2gtk-gir-files
// DO NOT EDIT

use crate::DOMNode;
use crate::DOMObject;
use crate::DOMXPathResult;
use glib::object::IsA;
use glib::translate::*;
use std::fmt;
use std::ptr;

glib::wrapper! {
    ///
    ///
    /// # Implements
    ///
    /// [`DOMXPathExpressionExt`][trait@crate::prelude::DOMXPathExpressionExt], [`DOMObjectExt`][trait@crate::prelude::DOMObjectExt]
    #[doc(alias = "WebKitDOMXPathExpression")]
    pub struct DOMXPathExpression(Object<ffi::WebKitDOMXPathExpression, ffi::WebKitDOMXPathExpressionClass>) @extends DOMObject;

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

impl DOMXPathExpression {
    pub const NONE: Option<&'static DOMXPathExpression> = None;
}

/// Trait containing all [`struct@DOMXPathExpression`] methods.
///
/// # Implementors
///
/// [`DOMXPathExpression`][struct@crate::DOMXPathExpression]
pub trait DOMXPathExpressionExt: 'static {
    ///
    /// # Deprecated since 2.22
    ///
    /// Use JavaScriptCore API instead
    /// ## `contextNode`
    /// A [`DOMNode`][crate::DOMNode]
    /// ## `type_`
    /// A `gushort`
    /// ## `inResult`
    /// A [`DOMXPathResult`][crate::DOMXPathResult]
    ///
    /// # Returns
    ///
    /// A [`DOMXPathResult`][crate::DOMXPathResult]
    #[cfg_attr(feature = "v2_22", deprecated = "Since 2.22")]
    #[doc(alias = "webkit_dom_xpath_expression_evaluate")]
    fn evaluate(
        &self,
        contextNode: &impl IsA<DOMNode>,
        type_: libc::c_ushort,
        inResult: &impl IsA<DOMXPathResult>,
    ) -> Result<DOMXPathResult, glib::Error>;
}

impl<O: IsA<DOMXPathExpression>> DOMXPathExpressionExt for O {
    fn evaluate(
        &self,
        contextNode: &impl IsA<DOMNode>,
        type_: libc::c_ushort,
        inResult: &impl IsA<DOMXPathResult>,
    ) -> Result<DOMXPathResult, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = ffi::webkit_dom_xpath_expression_evaluate(
                self.as_ref().to_glib_none().0,
                contextNode.as_ref().to_glib_none().0,
                type_,
                inResult.as_ref().to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(from_glib_full(ret))
            } else {
                Err(from_glib_full(error))
            }
        }
    }
}

impl fmt::Display for DOMXPathExpression {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("DOMXPathExpression")
    }
}