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LibWeb: Implement BrowsingContext::select_all() in terms of Selection

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We do what other browsers do and create a selection anchored at the
document's body element.
This commit is contained in:
Andreas Kling 2023-01-11 19:48:17 +01:00
parent bf69f4370e
commit 1c4328902d
1 changed files with 8 additions and 39 deletions
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47
Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp
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@ -508,47 +508,16 @@ DeprecatedString BrowsingContext::selected_text() const
void BrowsingContext::select_all()
{
if (!active_document())
auto* document = active_document();
if (!document)
return;
auto* layout_root = active_document()->layout_node();
if (!layout_root)
auto* body = document->body();
if (!body)
return;
Layout::Node const* first_layout_node = layout_root;
for (;;) {
auto* next = first_layout_node->next_in_pre_order();
if (!next)
break;
first_layout_node = next;
if (is<Layout::TextNode>(*first_layout_node))
break;
}
Layout::Node const* last_layout_node = first_layout_node;
for (Layout::Node const* layout_node = first_layout_node; layout_node; layout_node = layout_node->next_in_pre_order()) {
if (is<Layout::TextNode>(*layout_node))
last_layout_node = layout_node;
}
VERIFY(first_layout_node);
VERIFY(last_layout_node);
int last_layout_node_index_in_node = 0;
if (is<Layout::TextNode>(*last_layout_node)) {
auto const& text_for_rendering = verify_cast<Layout::TextNode>(*last_layout_node).text_for_rendering();
if (!text_for_rendering.is_empty())
last_layout_node_index_in_node = text_for_rendering.length() - 1;
}
auto start = Layout::LayoutPosition {
JS::make_handle(const_cast<Layout::Node*>(first_layout_node)), 0
};
auto end = Layout::LayoutPosition {
JS::make_handle(const_cast<Layout::Node*>(last_layout_node)), last_layout_node_index_in_node
};
layout_root->set_selection({ move(start), move(end) });
auto selection = document->get_selection();
if (!selection)
return;
(void)selection->select_all_children(*document->body());
}
void BrowsingContext::register_viewport_client(ViewportClient& client)