dom: add DocumentType

src/dom/document.zig

@@ -12,6 +12,8 @@ const HTMLCollection = @import("html_collection.zig").HTMLCollection;
 const Element = @import("element.zig").Element;
 const ElementUnion = @import("element.zig").Union;
 
+const DocumentType = @import("document_type.zig").DocumentType;
+
 // WEB IDL https://dom.spec.whatwg.org/#document
 pub const Document = struct {
     pub const Self = parser.Document;
@@ -25,6 +27,10 @@ pub const Document = struct {
 
     // JS funcs
     // --------
+    //
+    pub fn get_doctype(self: *parser.Document) ?*parser.DocumentType {
+        return parser.documentGetDoctype(self);
+    }
 
     pub fn _getElementById(self: *parser.Document, id: []const u8) ?ElementUnion {
         const e = parser.documentGetElementById(self, id) orelse return null;

src/dom/document_type.zig

@@ -0,0 +1,24 @@
+const std = @import("std");
+
+const parser = @import("../netsurf.zig");
+
+const Node = @import("node.zig").Node;
+
+// WEB IDL https://dom.spec.whatwg.org/#documenttype
+pub const DocumentType = struct {
+    pub const Self = parser.DocumentType;
+    pub const prototype = *Node;
+    pub const mem_guarantied = true;
+
+    pub fn get_name(self: *parser.DocumentType) []const u8 {
+        return parser.documentTypeGetName(self);
+    }
+
+    pub fn get_publicId(self: *parser.DocumentType) []const u8 {
+        return parser.documentTypeGetPublicId(self);
+    }
+
+    pub fn get_systemId(self: *parser.DocumentType) []const u8 {
+        return parser.documentTypeGetSystemId(self);
+    }
+};

src/dom/node.zig

@@ -14,6 +14,7 @@ const EventTarget = @import("event_target.zig").EventTarget;
 const CData = @import("character_data.zig");
 const Element = @import("element.zig").Element;
 const Document = @import("document.zig").Document;
+const DocumentType = @import("document_type.zig").DocumentType;
 const HTMLCollection = @import("html_collection.zig").HTMLCollection;
 
 // HTML
@@ -26,6 +27,7 @@ pub const Interfaces = generate.Tuple(.{
     CData.Interfaces,
     Element,
     Document,
+    DocumentType,
     HTMLCollection,
 
     HTML.Interfaces,
@@ -46,6 +48,7 @@ pub const Node = struct {
             .comment => .{ .Comment = @as(*parser.Comment, @ptrCast(node)) },
             .text => .{ .Text = @as(*parser.Text, @ptrCast(node)) },
             .document => .{ .HTMLDocument = @as(*parser.DocumentHTML, @ptrCast(node)) },
+            .document_type => .{ .DocumentType = @as(*parser.DocumentType, @ptrCast(node)) },
             else => @panic("node type not handled"), // TODO
         };
     }

src/netsurf.zig

@@ -720,6 +720,31 @@ pub const DocumentPosition = enum(u2) {
     implementation_specific = c.DOM_DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC,
 };
 
+// DocumentType
+pub const DocumentType = c.dom_document_type;
+
+fn documentTypeVtable(dt: *DocumentType) c.dom_document_type_vtable {
+    return getVtable(c.dom_document_type_vtable, DocumentType, dt);
+}
+
+pub inline fn documentTypeGetName(dt: *DocumentType) []const u8 {
+    var s: ?*String = undefined;
+    _ = documentTypeVtable(dt).dom_document_type_get_name.?(dt, &s);
+    return stringToData(s.?);
+}
+
+pub inline fn documentTypeGetPublicId(dt: *DocumentType) []const u8 {
+    var s: ?*String = undefined;
+    _ = documentTypeVtable(dt).dom_document_type_get_public_id.?(dt, &s);
+    return stringToData(s.?);
+}
+
+pub inline fn documentTypeGetSystemId(dt: *DocumentType) []const u8 {
+    var s: ?*String = undefined;
+    _ = documentTypeVtable(dt).dom_document_type_get_system_id.?(dt, &s);
+    return stringToData(s.?);
+}
+
 // Document
 pub const Document = c.dom_document;
 
@@ -758,6 +783,12 @@ pub inline fn documentCreateElementNS(doc: *Document, ns: []const u8, tag_name:
     return elem.?;
 }
 
+pub inline fn documentGetDoctype(doc: *Document) ?*DocumentType {
+    var dt: ?*DocumentType = undefined;
+    _ = documentVtable(doc).dom_document_get_doctype.?(doc, &dt);
+    return dt;
+}
+
 // DocumentHTML
 pub const DocumentHTML = c.dom_html_document;
 

tests/wpt/dom/nodes/Document-doctype.html

@@ -0,0 +1,21 @@
+<!-- comment -->
+<!doctype html>
+<meta charset=utf-8>
+<title>Document.doctype</title>
+<link rel=help href="https://dom.spec.whatwg.org/#dom-document-doctype">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+test(function() {
+  assert_true(document.doctype instanceof DocumentType,
+              "Doctype should be a DocumentType");
+  assert_equals(document.doctype, document.childNodes[1]);
+}, "Window document with doctype");
+
+test(function() {
+  var newdoc = new Document();
+  newdoc.appendChild(newdoc.createElement("html"));
+  assert_equals(newdoc.doctype, null);
+}, "new Document()");
+</script>

tests/wpt/dom/nodes/DocumentType-literal.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html PUBLIC "STAFF" "staffNS.dtd">
+<title>DocumentType literals</title>
+<link rel="help" href="https://dom.spec.whatwg.org/#dom-documenttype-name">
+<link rel="help" href="https://dom.spec.whatwg.org/#dom-documenttype-publicid">
+<link rel="help" href="https://dom.spec.whatwg.org/#dom-documenttype-systemid">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+test(function() {
+  var doctype = document.firstChild;
+  assert_true(doctype instanceof DocumentType)
+  assert_equals(doctype.name, "html")
+  assert_equals(doctype.publicId, 'STAFF')
+  assert_equals(doctype.systemId, 'staffNS.dtd')
+})
+</script>