From 94876d01f187eda1c04d033b4cc1deb371b375e2 Mon Sep 17 00:00:00 2001
From: Pierre Tachoire <pierre@lightpanda.io>
Date: Thu, 7 Dec 2023 16:27:26 +0100
Subject: [PATCH] dom: add document.createCDATASection

---
 src/dom/cdata_section.zig  | 12 ++++++++++++
 src/dom/character_data.zig |  2 ++
 src/dom/document.zig       |  9 +++++++++
 src/dom/node.zig           |  1 +
 src/netsurf.zig            | 10 ++++++++++
 5 files changed, 34 insertions(+)
 create mode 100644 src/dom/cdata_section.zig

diff --git a/src/dom/cdata_section.zig b/src/dom/cdata_section.zig
new file mode 100644
index 00000000..8f02ceb1
--- /dev/null
+++ b/src/dom/cdata_section.zig
@@ -0,0 +1,12 @@
+const std = @import("std");
+
+const parser = @import("../netsurf.zig");
+
+const Text = @import("text.zig").Text;
+
+// https://dom.spec.whatwg.org/#cdatasection
+pub const CDATASection = struct {
+    pub const Self = parser.CDATASection;
+    pub const prototype = *Text;
+    pub const mem_guarantied = true;
+};
diff --git a/src/dom/character_data.zig b/src/dom/character_data.zig
index 8f139691..b515b719 100644
--- a/src/dom/character_data.zig
+++ b/src/dom/character_data.zig
@@ -10,12 +10,14 @@ const parser = @import("../netsurf.zig");
 const Node = @import("node.zig").Node;
 const Comment = @import("comment.zig").Comment;
 const Text = @import("text.zig").Text;
+const CDATASection = @import("cdata_section.zig").CDATASection;
 const HTMLElem = @import("../html/elements.zig");
 
 // CharacterData interfaces
 pub const Interfaces = generate.Tuple(.{
     Comment,
     Text,
+    CDATASection,
 });
 
 // CharacterData implementation
diff --git a/src/dom/document.zig b/src/dom/document.zig
index ea29dad8..aa4a5c6a 100644
--- a/src/dom/document.zig
+++ b/src/dom/document.zig
@@ -133,6 +133,10 @@ pub const Document = struct {
         return try parser.documentCreateTextNode(self, data);
     }
 
+    pub fn _createCDATASection(self: *parser.Document, data: []const u8) !*parser.CDATASection {
+        return try parser.documentCreateCDATASection(self, data);
+    }
+
     pub fn deinit(_: *parser.Document, _: std.mem.Allocator) void {}
 };
 
@@ -235,6 +239,11 @@ pub fn testExecFn(
     };
     try checkCases(js_env, &createTextNode);
 
+    var createCDATASection = [_]Case{
+        .{ .src = "document.createCDATASection('foo')", .ex = "[object CDATASection]" },
+    };
+    try checkCases(js_env, &createCDATASection);
+
     const tags = comptime parser.Tag.all();
     comptime var createElements: [(tags.len) * 2]Case = undefined;
     inline for (tags, 0..) |tag, i| {
diff --git a/src/dom/node.zig b/src/dom/node.zig
index 022aa9c7..b700b73f 100644
--- a/src/dom/node.zig
+++ b/src/dom/node.zig
@@ -54,6 +54,7 @@ pub const Node = struct {
             ),
             .comment => .{ .Comment = @as(*parser.Comment, @ptrCast(node)) },
             .text => .{ .Text = @as(*parser.Text, @ptrCast(node)) },
+            .cdata_section => .{ .CDATASection = @as(*parser.CDATASection, @ptrCast(node)) },
             .document => .{ .HTMLDocument = @as(*parser.DocumentHTML, @ptrCast(node)) },
             .document_type => .{ .DocumentType = @as(*parser.DocumentType, @ptrCast(node)) },
             .attribute => .{ .Attr = @as(*parser.Attribute, @ptrCast(node)) },
diff --git a/src/netsurf.zig b/src/netsurf.zig
index b764c9dd..3042da20 100644
--- a/src/netsurf.zig
+++ b/src/netsurf.zig
@@ -791,6 +791,9 @@ pub fn characterDataSubstringData(cdata: *CharacterData, offset: u32, count: u32
     return strToData(s.?);
 }
 
+// CDATASection
+pub const CDATASection = c.dom_cdata_section;
+
 // Text
 pub const Text = c.dom_text;
 
@@ -1144,6 +1147,13 @@ pub inline fn documentCreateTextNode(doc: *Document, s: []const u8) !*Text {
     return txt.?;
 }
 
+pub inline fn documentCreateCDATASection(doc: *Document, s: []const u8) !*CDATASection {
+    var cdata: ?*CDATASection = undefined;
+    const err = documentVtable(doc).dom_document_create_cdata_section.?(doc, try strFromData(s), &cdata);
+    try DOMErr(err);
+    return cdata.?;
+}
+
 // DocumentHTML
 pub const DocumentHTML = c.dom_html_document;