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dom: refacto HTMLCollection next

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This commit is contained in:
Pierre Tachoire
2023-10-27 16:51:43 +02:00
parent 1fe49adba2
commit 8c1d1e491c
1 changed files with 38 additions and 81 deletions
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119
src/dom/html_collection.zig
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@@ -19,6 +19,41 @@ pub const HTMLCollection = struct {
// match comparison is case insensitive. // match comparison is case insensitive.
match: []const u8, match: []const u8,
// next iterates hover the DOM tree to return the next following node or
// null at the end.
fn _next(root: *parser.Node, cur: *parser.Node) ?*parser.Node {
// TODO deinit next
var next = parser.nodeFirstChild(cur);
if (next != null) {
return next;
}
// TODO deinit next
next = parser.nodeNextSibling(cur);
if (next != null) {
return next;
}
// TODO deinit parent
var parent = parser.nodeParentNode(cur) orelse unreachable;
// TODO deinit lastchild
var lastchild = parser.nodeLastChild(parent);
var prev = cur;
while (prev != root and prev == lastchild) {
prev = parent;
// TODO deinit parent
parent = parser.nodeParentNode(cur) orelse unreachable;
// TODO deinit lastchild
lastchild = parser.nodeLastChild(parent);
}
if (prev == root) {
return null;
}
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. /// the current root structure.
// TODO: nodes retrieved must be de-referenced. // TODO: nodes retrieved must be de-referenced.
@@ -45,33 +80,7 @@ pub const HTMLCollection = struct {
} }
} }
// Iterate hover the DOM tree. node = _next(self.root, node.?);
var next = parser.nodeFirstChild(node.?);
if (next != null) {
node = next;
continue;
}
next = parser.nodeNextSibling(node.?);
if (next != null) {
node = next;
continue;
}
var parent = parser.nodeParentNode(node.?);
var lastchild = parser.nodeLastChild(parent.?);
while (node.? != self.root and node.? == lastchild) {
node = parent;
parent = parser.nodeParentNode(node.?);
lastchild = parser.nodeLastChild(parent.?);
}
if (node.? == self.root) {
node = null;
continue;
}
node = parser.nodeNextSibling(node.?);
} }
return len; return len;
@@ -105,33 +114,7 @@ pub const HTMLCollection = struct {
} }
} }
// Iterate hover the DOM tree. node = _next(self.root, node.?);
var next = parser.nodeFirstChild(node.?);
if (next != null) {
node = next;
continue;
}
next = parser.nodeNextSibling(node.?);
if (next != null) {
node = next;
continue;
}
var parent = parser.nodeParentNode(node.?);
var lastchild = parser.nodeLastChild(parent.?);
while (node.? != self.root and node.? == lastchild) {
node = parent;
parent = parser.nodeParentNode(node.?);
lastchild = parser.nodeLastChild(parent.?);
}
if (node.? == self.root) {
node = null;
continue;
}
node = parser.nodeNextSibling(node.?);
} }
return null; return null;
@@ -175,33 +158,7 @@ pub const HTMLCollection = struct {
} }
} }
// Iterate hover the DOM tree. node = _next(self.root, node.?);
var next = parser.nodeFirstChild(node.?);
if (next != null) {
node = next;
continue;
}
next = parser.nodeNextSibling(node.?);
if (next != null) {
node = next;
continue;
}
var parent = parser.nodeParentNode(node.?);
var lastchild = parser.nodeLastChild(parent.?);
while (node.? != self.root and node.? == lastchild) {
node = parent;
parent = parser.nodeParentNode(node.?);
lastchild = parser.nodeLastChild(parent.?);
}
if (node.? == self.root) {
node = null;
continue;
}
node = parser.nodeNextSibling(node.?);
} }
return null; return null;