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LibWeb: Change where content selection via mouse is allowed

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Previously, only DOM nodes with `is_editable()` allowed selection via
the mouse. This had the unwanted consequence, that read-only
input/textarea elements did not allow selection.

Now, `EventHandler::handle_mousedown()` asks the node's non-shadow
parent element over the new virtual method `is_child_node_selectable()`,
if selection of the node is allowed.
This method is overridden for `HTMLButtonElement` and
`HTMLInputElement`, to disallow selection of buttons and placeholders.

Fixes #579
This commit is contained in:
simonkrauter 2024-08-19 17:06:13 -03:00 • committed by Sam Atkins
commit 6c9adf3dbc
Notes: github-actions[bot] 2024-08-23 08:31:56 +00:00
5 changed files with 24 additions and 3 deletions
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2
Userland/Libraries/LibWeb/HTML/HTMLButtonElement.h
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@ -70,6 +70,8 @@ public:
virtual bool has_activation_behavior() const override;
virtual void activation_behavior(DOM::Event const&) override;
virtual bool is_child_node_selectable(DOM::Node const&) const override { return false; }
private:
virtual bool is_html_button_element() const override { return true; }