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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/* 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 crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionConstants;
use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionMethods;
use crate::dom::bindings::error::Error;
use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::DOMString;
use crate::dom::globalscope::GlobalScope;
use dom_struct::dom_struct;

#[repr(u16)]
#[derive(Clone, Copy, Debug, Eq, JSTraceable, MallocSizeOf, Ord, PartialEq, PartialOrd)]
pub enum DOMErrorName {
    IndexSizeError = DOMExceptionConstants::INDEX_SIZE_ERR,
    HierarchyRequestError = DOMExceptionConstants::HIERARCHY_REQUEST_ERR,
    WrongDocumentError = DOMExceptionConstants::WRONG_DOCUMENT_ERR,
    InvalidCharacterError = DOMExceptionConstants::INVALID_CHARACTER_ERR,
    NoModificationAllowedError = DOMExceptionConstants::NO_MODIFICATION_ALLOWED_ERR,
    NotFoundError = DOMExceptionConstants::NOT_FOUND_ERR,
    NotSupportedError = DOMExceptionConstants::NOT_SUPPORTED_ERR,
    InUseAttributeError = DOMExceptionConstants::INUSE_ATTRIBUTE_ERR,
    InvalidStateError = DOMExceptionConstants::INVALID_STATE_ERR,
    SyntaxError = DOMExceptionConstants::SYNTAX_ERR,
    InvalidModificationError = DOMExceptionConstants::INVALID_MODIFICATION_ERR,
    NamespaceError = DOMExceptionConstants::NAMESPACE_ERR,
    InvalidAccessError = DOMExceptionConstants::INVALID_ACCESS_ERR,
    SecurityError = DOMExceptionConstants::SECURITY_ERR,
    NetworkError = DOMExceptionConstants::NETWORK_ERR,
    AbortError = DOMExceptionConstants::ABORT_ERR,
    TypeMismatchError = DOMExceptionConstants::TYPE_MISMATCH_ERR,
    URLMismatchError = DOMExceptionConstants::URL_MISMATCH_ERR,
    QuotaExceededError = DOMExceptionConstants::QUOTA_EXCEEDED_ERR,
    TimeoutError = DOMExceptionConstants::TIMEOUT_ERR,
    InvalidNodeTypeError = DOMExceptionConstants::INVALID_NODE_TYPE_ERR,
    DataCloneError = DOMExceptionConstants::DATA_CLONE_ERR,
    NotReadableError,
    OperationError,
}

impl DOMErrorName {
    pub fn from(s: &DOMString) -> Option<DOMErrorName> {
        match s.as_ref() {
            "IndexSizeError" => Some(DOMErrorName::IndexSizeError),
            "HierarchyRequestError" => Some(DOMErrorName::HierarchyRequestError),
            "WrongDocumentError" => Some(DOMErrorName::WrongDocumentError),
            "InvalidCharacterError" => Some(DOMErrorName::InvalidCharacterError),
            "NoModificationAllowedError" => Some(DOMErrorName::NoModificationAllowedError),
            "NotFoundError" => Some(DOMErrorName::NotFoundError),
            "NotSupportedError" => Some(DOMErrorName::NotSupportedError),
            "InUseAttributeError" => Some(DOMErrorName::InUseAttributeError),
            "InvalidStateError" => Some(DOMErrorName::InvalidStateError),
            "SyntaxError" => Some(DOMErrorName::SyntaxError),
            "InvalidModificationError" => Some(DOMErrorName::InvalidModificationError),
            "NamespaceError" => Some(DOMErrorName::NamespaceError),
            "InvalidAccessError" => Some(DOMErrorName::InvalidAccessError),
            "SecurityError" => Some(DOMErrorName::SecurityError),
            "NetworkError" => Some(DOMErrorName::NetworkError),
            "AbortError" => Some(DOMErrorName::AbortError),
            "TypeMismatchError" => Some(DOMErrorName::TypeMismatchError),
            "URLMismatchError" => Some(DOMErrorName::URLMismatchError),
            "QuotaExceededError" => Some(DOMErrorName::QuotaExceededError),
            "TimeoutError" => Some(DOMErrorName::TimeoutError),
            "InvalidNodeTypeError" => Some(DOMErrorName::InvalidNodeTypeError),
            "DataCloneError" => Some(DOMErrorName::DataCloneError),
            "NotReadableError" => Some(DOMErrorName::NotReadableError),
            "OperationError" => Some(DOMErrorName::OperationError),
            _ => None,
        }
    }
}

#[dom_struct]
pub struct DOMException {
    reflector_: Reflector,
    message: DOMString,
    name: DOMString,
}

impl DOMException {
    fn get_error_data_by_code(code: DOMErrorName) -> (DOMString, DOMString) {
        let message = match &code {
            DOMErrorName::IndexSizeError => "The index is not in the allowed range.",
            DOMErrorName::HierarchyRequestError => {
                "The operation would yield an incorrect node tree."
            },
            DOMErrorName::WrongDocumentError => "The object is in the wrong document.",
            DOMErrorName::InvalidCharacterError => "The string contains invalid characters.",
            DOMErrorName::NoModificationAllowedError => "The object can not be modified.",
            DOMErrorName::NotFoundError => "The object can not be found here.",
            DOMErrorName::NotSupportedError => "The operation is not supported.",
            DOMErrorName::InUseAttributeError => "The attribute already in use.",
            DOMErrorName::InvalidStateError => "The object is in an invalid state.",
            DOMErrorName::SyntaxError => "The string did not match the expected pattern.",
            DOMErrorName::InvalidModificationError => "The object can not be modified in this way.",
            DOMErrorName::NamespaceError => "The operation is not allowed by Namespaces in XML.",
            DOMErrorName::InvalidAccessError => {
                "The object does not support the operation or argument."
            },
            DOMErrorName::SecurityError => "The operation is insecure.",
            DOMErrorName::NetworkError => "A network error occurred.",
            DOMErrorName::AbortError => "The operation was aborted.",
            DOMErrorName::TypeMismatchError => "The given type does not match any expected type.",
            DOMErrorName::URLMismatchError => "The given URL does not match another URL.",
            DOMErrorName::QuotaExceededError => "The quota has been exceeded.",
            DOMErrorName::TimeoutError => "The operation timed out.",
            DOMErrorName::InvalidNodeTypeError => {
                "The supplied node is incorrect or has an incorrect ancestor for this operation."
            },
            DOMErrorName::DataCloneError => "The object can not be cloned.",
            DOMErrorName::NotReadableError => "The I/O read operation failed.",
            DOMErrorName::OperationError => {
                "The operation failed for an operation-specific reason."
            },
        };

        (
            DOMString::from(message),
            DOMString::from(format!("{:?}", code)),
        )
    }

    fn new_inherited(message_: DOMString, name_: DOMString) -> DOMException {
        DOMException {
            reflector_: Reflector::new(),
            message: message_,
            name: name_,
        }
    }

    pub fn new(global: &GlobalScope, code: DOMErrorName) -> DomRoot<DOMException> {
        let (message, name) = DOMException::get_error_data_by_code(code);

        reflect_dom_object(Box::new(DOMException::new_inherited(message, name)), global)
    }

    #[allow(non_snake_case)]
    pub fn Constructor(
        global: &GlobalScope,
        message: DOMString,
        name: DOMString,
    ) -> Result<DomRoot<DOMException>, Error> {
        Ok(reflect_dom_object(
            Box::new(DOMException::new_inherited(message, name)),
            global,
        ))
    }

    // not an IDL stringifier, used internally
    pub fn stringifier(&self) -> DOMString {
        DOMString::from(format!("{}: {}", self.name, self.message))
    }
}

impl DOMExceptionMethods for DOMException {
    // https://heycam.github.io/webidl/#dom-domexception-code
    fn Code(&self) -> u16 {
        match DOMErrorName::from(&self.name) {
            Some(code) if code <= DOMErrorName::DataCloneError => code as u16,
            _ => 0,
        }
    }

    // https://heycam.github.io/webidl/#idl-DOMException-error-names
    fn Name(&self) -> DOMString {
        self.name.clone()
    }

    // https://heycam.github.io/webidl/#error-names
    fn Message(&self) -> DOMString {
        self.message.clone()
    }
}