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dom: add collection get_next comment

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This commit is contained in:
Pierre Tachoire
2023-11-16 16:25:39 +01:00
parent 2129361fa0
commit a136e812ae
1 changed files with 9 additions and 2 deletions
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11
src/dom/html_collection.zig
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@@ -26,8 +26,15 @@ pub const HTMLCollection = struct {
cur_idx: ?u32 = undefined,
cur_node: ?*parser.Node = undefined,
// next iterates hover the DOM tree to return the next following node or
// get_next iterates over the DOM tree to return the next following node or
// null at the end.
//
// This implementation is a zig version of Netsurf code.
// http://source.netsurf-browser.org/libdom.git/tree/src/html/html_collection.c#n177
//
// The iteration is a depth first as required by the specification.
// https://dom.spec.whatwg.org/#htmlcollection
// https://dom.spec.whatwg.org/#concept-tree-order
fn get_next(root: *parser.Node, cur: *parser.Node) ?*parser.Node {
// TODO deinit next
var next = parser.nodeFirstChild(cur);
@@ -61,7 +68,7 @@ pub const HTMLCollection = struct {
return parser.nodeNextSibling(prev);
}
/// _get_length computes the collection's length dynamically according to
/// get_length computes the collection's length dynamically according to
/// the current root structure.
// TODO: nodes retrieved must be de-referenced.
pub fn get_length(self: *HTMLCollection, allocator: std.mem.Allocator) !u32 {