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LibWeb: Defer mouse events from TextNode to Label
A label's format is: <label>Label text</label> So, a TextNode is created as a child of the Label node, and EventHandler will send events to the TextNode. This changes TextNode to accept mouse events if its parent is a Label, and to forward those events upward.
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5 changed files with 41 additions and 8 deletions
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@ -30,6 +30,7 @@
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/Layout/BlockBox.h>
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#include <LibWeb/Layout/InlineFormattingContext.h>
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#include <LibWeb/Layout/Label.h>
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#include <LibWeb/Layout/TextNode.h>
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#include <LibWeb/Page/Frame.h>
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#include <ctype.h>
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@ -306,4 +307,32 @@ void TextNode::split_into_lines(InlineFormattingContext& context, LayoutMode lay
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split_into_lines_by_rules(context, layout_mode, do_collapse, do_wrap_lines, do_wrap_breaks);
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}
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bool TextNode::wants_mouse_events() const
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{
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return parent() && is<Label>(parent());
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}
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void TextNode::handle_mousedown(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned button, unsigned)
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{
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if (!parent() || !is<Label>(*parent()))
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return;
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downcast<Label>(*parent()).handle_mousedown_on_label({}, position, button);
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frame().event_handler().set_mouse_event_tracking_layout_node(this);
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}
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void TextNode::handle_mouseup(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned button, unsigned)
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{
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if (!parent() || !is<Label>(*parent()))
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return;
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downcast<Label>(*parent()).handle_mouseup_on_label({}, position, button);
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frame().event_handler().set_mouse_event_tracking_layout_node(nullptr);
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}
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void TextNode::handle_mousemove(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned button, unsigned)
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{
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if (!parent() || !is<Label>(*parent()))
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return;
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downcast<Label>(*parent()).handle_mousemove_on_label({}, position, button);
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}
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}
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