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dom: fix replace child

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This commit is contained in:
Pierre Tachoire
2024-02-19 17:32:13 +01:00
parent 37f4a9c72c
commit f7c0bcceae
1 changed files with 18 additions and 12 deletions
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30
src/dom/node.zig
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@@ -294,27 +294,33 @@ pub const Node = struct {
// function must accept either node or string.
// blocked by https://github.com/lightpanda-io/jsruntime-lib/issues/114
pub fn replaceChildren(self: *parser.Node, nodes: ?Variadic(*parser.Node)) !void {
// remove existing children
try removeChildren(self);
if (nodes == null) return;
if (nodes.?.slice.len == 0) return;
// remove existing children
if (try parser.nodeHasChildNodes(self)) {
const children = try parser.nodeGetChildNodes(self);
const ln = try parser.nodeListLength(children);
var i: u32 = 0;
while (i < ln) {
defer i += 1;
const child = try parser.nodeListItem(children, i) orelse continue;
_ = try parser.nodeRemoveChild(self, child);
}
}
// add new children
for (nodes.?.slice) |node| {
_ = try parser.nodeAppendChild(self, node);
}
}
pub fn removeChildren(self: *parser.Node) !void {
if (!try parser.nodeHasChildNodes(self)) return;
const children = try parser.nodeGetChildNodes(self);
const ln = try parser.nodeListLength(children);
var i: u32 = 0;
while (i < ln) {
defer i += 1;
// we always retrieve the 0 index child on purpose: libdom nodelist
// are dynamic. So the next child to remove is always as pos 0.
const child = try parser.nodeListItem(children, 0) orelse continue;
_ = try parser.nodeRemoveChild(self, child);
}
}
pub fn deinit(_: *parser.Node, _: std.mem.Allocator) void {}
};