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LibWeb: Basic implementation of global event handlers :^)
Document and HTMLElement now inherit from HTML::GlobalEventHandlers which allows them to support "onfoo" event handler attributes. These are assignable both via IDL attributes and content attributes. Event listeners constructed this way get a special "attribute" flag on them so we know which one to replace if you reassign them. This also allows them to coexist with EventTarget.addEventListener(). This is all a bit sloppy, but it works decently for a first cut. The Window object should also inherit GlobalEventHandlers, but since we don't generate it from IDL, I haven't taken that step here. Also this would be a lot nicer if we supported IDL mixins.
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15 changed files with 391 additions and 2 deletions
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@ -27,10 +27,14 @@
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#pragma once
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/GlobalEventHandlers.h>
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namespace Web::HTML {
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class HTMLElement : public DOM::Element {
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class HTMLElement
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: public DOM::Element
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, public HTML::GlobalEventHandlers {
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public:
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using WrapperType = Bindings::HTMLElementWrapper;
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@ -48,7 +52,13 @@ public:
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bool cannot_navigate() const;
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protected:
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virtual void parse_attribute(const FlyString& name, const String& value) override;
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private:
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// ^HTML::GlobalEventHandlers
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virtual EventTarget& global_event_handlers_to_event_target() override { return *this; }
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enum class ContentEditableState {
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True,
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False,
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