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LibWeb: Remember the selection state of each LayoutNode

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Instead of computing it on the fly while painting each layout node,
they now remember their selection state. This avoids a whole bunch
of tree traversal while painting with anything selected.
This commit is contained in:
Andreas Kling 2020-08-21 17:50:41 +02:00
parent cf4870c93e
commit d47f77169f
Notes: sideshowbarker 2024-07-19 03:21:04 +09:00
6 changed files with 60 additions and 15 deletions
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2
Libraries/LibWeb/Page/EventHandler.cpp
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@ -157,6 +157,7 @@ bool EventHandler::handle_mousedown(const Gfx::IntPoint& position, unsigned butt
if (result.layout_node && result.layout_node->node()) {
m_frame.set_cursor_position(DOM::Position(*node, result.index_in_node));
layout_root()->selection().set({ result.layout_node, result.index_in_node }, {});
layout_root()->recompute_selection_states();
dump_selection("MouseDown");
m_in_mouse_selection = true;
}
@ -209,6 +210,7 @@ bool EventHandler::handle_mousemove(const Gfx::IntPoint& position, unsigned butt
auto hit = layout_root()->hit_test(position, HitTestType::TextCursor);
if (hit.layout_node && hit.layout_node->node()) {
layout_root()->selection().set_end({ hit.layout_node, hit.index_in_node });
layout_root()->recompute_selection_states();
}
dump_selection("MouseMove");
page_client.page_did_change_selection();