1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */

use std::rc::Rc;

use dom_struct::dom_struct;
use js::jsval::UndefinedValue;

use crate::dom::bindings::codegen::Bindings::NavigationPreloadManagerBinding::{
    NavigationPreloadManagerMethods, NavigationPreloadState,
};
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::str::ByteString;
use crate::dom::domexception::{DOMErrorName, DOMException};
use crate::dom::globalscope::GlobalScope;
use crate::dom::promise::Promise;
use crate::dom::serviceworkerregistration::ServiceWorkerRegistration;
use crate::realms::InRealm;

#[dom_struct]
pub struct NavigationPreloadManager {
    reflector_: Reflector,
    serviceworker_registration: Dom<ServiceWorkerRegistration>,
}

impl NavigationPreloadManager {
    fn new_inherited(registration: &ServiceWorkerRegistration) -> NavigationPreloadManager {
        NavigationPreloadManager {
            reflector_: Reflector::new(),
            serviceworker_registration: Dom::from_ref(registration),
        }
    }

    #[allow(crown::unrooted_must_root)]
    pub fn new(
        global: &GlobalScope,
        registration: &ServiceWorkerRegistration,
    ) -> DomRoot<NavigationPreloadManager> {
        let manager = NavigationPreloadManager::new_inherited(registration);
        reflect_dom_object(Box::new(manager), global)
    }
}

impl NavigationPreloadManagerMethods for NavigationPreloadManager {
    // https://w3c.github.io/ServiceWorker/#navigation-preload-manager-enable
    fn Enable(&self, comp: InRealm) -> Rc<Promise> {
        let promise = Promise::new_in_current_realm(comp);

        // 2.
        if self.serviceworker_registration.is_active() {
            promise.reject_native(&DOMException::new(
                &self.global(),
                DOMErrorName::InvalidStateError,
            ));
        } else {
            // 3.
            self.serviceworker_registration
                .set_navigation_preload_enabled(true);

            // 4.
            promise.resolve_native(&UndefinedValue());
        }

        promise
    }

    // https://w3c.github.io/ServiceWorker/#navigation-preload-manager-disable
    fn Disable(&self, comp: InRealm) -> Rc<Promise> {
        let promise = Promise::new_in_current_realm(comp);

        // 2.
        if self.serviceworker_registration.is_active() {
            promise.reject_native(&DOMException::new(
                &self.global(),
                DOMErrorName::InvalidStateError,
            ));
        } else {
            // 3.
            self.serviceworker_registration
                .set_navigation_preload_enabled(false);

            // 4.
            promise.resolve_native(&UndefinedValue());
        }

        promise
    }

    // https://w3c.github.io/ServiceWorker/#navigation-preload-manager-setheadervalue
    fn SetHeaderValue(&self, value: ByteString, comp: InRealm) -> Rc<Promise> {
        let promise = Promise::new_in_current_realm(comp);

        // 2.
        if self.serviceworker_registration.is_active() {
            promise.reject_native(&DOMException::new(
                &self.global(),
                DOMErrorName::InvalidStateError,
            ));
        } else {
            // 3.
            self.serviceworker_registration
                .set_navigation_preload_header_value(value);

            // 4.
            promise.resolve_native(&UndefinedValue());
        }

        promise
    }

    // https://w3c.github.io/ServiceWorker/#navigation-preload-manager-getstate
    fn GetState(&self, comp: InRealm) -> Rc<Promise> {
        let promise = Promise::new_in_current_realm(comp);
        // 2.
        let mut state = NavigationPreloadState::empty();

        // 3.
        if self.serviceworker_registration.is_active() &&
            self.serviceworker_registration
                .get_navigation_preload_enabled()
        {
            state.enabled = true;
        }

        // 4.
        state.headerValue = self
            .serviceworker_registration
            .get_navigation_preload_header_value();

        // 5.
        promise.resolve_native(&state);

        promise
    }
}