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LibWeb+WebContent+Browser: Plumb visibility state from GUI to web pages

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OOPWV now reacts to show/hide events and informs LibWeb about the state
change. This makes visibilitychange events fire when switching tabs. :^)
This commit is contained in:
Andreas Kling 2022-09-19 20:50:33 +02:00
parent 5908873b45
commit d4acdac317
14 changed files with 150 additions and 11 deletions
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8
Userland/Libraries/LibWeb/HTML/BrowsingContext.h
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@ -18,6 +18,7 @@
#include <LibWeb/HTML/HistoryHandlingBehavior.h>
#include <LibWeb/HTML/Origin.h>
#include <LibWeb/HTML/SessionHistoryEntry.h>
#include <LibWeb/HTML/VisibilityState.h>
#include <LibWeb/Loader/FrameLoader.h>
#include <LibWeb/Page/EventHandler.h>
#include <LibWeb/Platform/Timer.h>
@ -158,8 +159,12 @@ public:
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#traverse-the-history
DOM::ExceptionOr<void> traverse_the_history(size_t entry_index, HistoryHandlingBehavior = HistoryHandlingBehavior::Default, bool explicit_history_navigation = false);
Vector<JS::Handle<DOM::Document>> document_family() const;
bool document_family_contains(DOM::Document const&) const;
VisibilityState system_visibility_state() const;
void set_system_visibility_state(VisibilityState);
private:
explicit BrowsingContext(Page&, HTML::BrowsingContextContainer*);
@ -205,6 +210,9 @@ private:
// https://html.spec.whatwg.org/multipage/browsers.html#tlbc-group
RefPtr<BrowsingContextGroup> m_group;
// https://html.spec.whatwg.org/multipage/interaction.html#system-visibility-state
VisibilityState m_system_visibility_state { VisibilityState::Hidden };
};
HTML::Origin determine_the_origin(BrowsingContext const& browsing_context, Optional<AK::URL> url, SandboxingFlagSet sandbox_flags, Optional<HTML::Origin> invocation_origin);