From 3ec5cee98cf8a4a3163f33d981721b24da238323 Mon Sep 17 00:00:00 2001
From: Pierre Tachoire <pierre@lightpanda.io>
Date: Thu, 7 Dec 2023 17:26:08 +0100
Subject: [PATCH] dom: implement document.importNode

---
 src/dom/document.zig | 10 ++++++++++
 src/netsurf.zig      |  8 ++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/dom/document.zig b/src/dom/document.zig
index 6a34c01b..48f827f7 100644
--- a/src/dom/document.zig
+++ b/src/dom/document.zig
@@ -145,6 +145,10 @@ pub const Document = struct {
         return try parser.documentCreateProcessingInstruction(self, target, data);
     }
 
+    pub fn _importNode(self: *parser.Document, node: *parser.Node, deep: ?bool) !*parser.Node {
+        return try parser.documentImportNode(self, node, deep orelse false);
+    }
+
     pub fn deinit(_: *parser.Document, _: std.mem.Allocator) void {}
 };
 
@@ -263,6 +267,12 @@ pub fn testExecFn(
     };
     try checkCases(js_env, &createProcessingInstruction);
 
+    var importNode = [_]Case{
+        .{ .src = "let nimp = document.getElementById('content')", .ex = "undefined" },
+        .{ .src = "document.importNode(nimp)", .ex = "[object Node]" },
+    };
+    try checkCases(js_env, &importNode);
+
     const tags = comptime parser.Tag.all();
     comptime var createElements: [(tags.len) * 2]Case = undefined;
     inline for (tags, 0..) |tag, i| {
diff --git a/src/netsurf.zig b/src/netsurf.zig
index 96639ea2..439c0478 100644
--- a/src/netsurf.zig
+++ b/src/netsurf.zig
@@ -1176,6 +1176,14 @@ pub inline fn documentCreateProcessingInstruction(doc: *Document, target: []cons
     return pi.?;
 }
 
+pub inline fn documentImportNode(doc: *Document, node: *Node, deep: bool) !*Node {
+    var res: NodeExternal = undefined;
+    const nodeext = toNodeExternal(Node, node);
+    const err = documentVtable(doc).dom_document_import_node.?(doc, nodeext, deep, &res);
+    try DOMErr(err);
+    return @as(*Node, @ptrCast(res));
+}
+
 // DocumentHTML
 pub const DocumentHTML = c.dom_html_document;