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LibWeb: Start fleshing out Navigable::choose_a_navigable()

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Equivalent of `choose_a_browsing_context` for navigables.
This commit is contained in:
Aliaksandr Kalenik 2023-04-11 10:20:11 +03:00 • committed by Andreas Kling
parent 473848be0e
commit 2cbc9a6642
2 changed files with 65 additions and 0 deletions
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50
Userland/Libraries/LibWeb/HTML/Navigable.cpp
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@ -18,6 +18,7 @@
#include <LibWeb/HTML/NavigationParams.h>
#include <LibWeb/HTML/SessionHistoryEntry.h>
#include <LibWeb/HTML/TraversableNavigable.h>
#include <LibWeb/Infra/Strings.h>
#include <LibWeb/Platform/EventLoopPlugin.h>
namespace Web::HTML {
@ -225,6 +226,55 @@ JS::GCPtr<TraversableNavigable> Navigable::top_level_traversable()
return verify_cast<TraversableNavigable>(navigable);
}
Navigable::ChosenNavigable Navigable::choose_a_navigable(StringView name, TokenizedFeature::NoOpener, ActivateTab)
{
// 1. Let chosen be null.
JS::GCPtr<Navigable> chosen = nullptr;
// 2. Let windowType be "existing or none".
auto window_type = WindowType::ExistingOrNone;
// 3. Let sandboxingFlagSet be current's active document's active sandboxing flag set.
[[maybe_unused]] auto sandboxing_flag_set = active_document()->active_sandboxing_flag_set();
// 4. If name is the empty string or an ASCII case-insensitive match for "_self", then set chosen to currentNavigable.
if (name.is_empty() || Infra::is_ascii_case_insensitive_match(name, "_self"sv)) {
chosen = this;
}
// 5. Otherwise, if name is an ASCII case-insensitive match for "_parent",
// set chosen to currentNavigable's parent, if any, and currentNavigable otherwise.
else if (Infra::is_ascii_case_insensitive_match(name, "_parent"sv)) {
if (auto parent = this->parent())
chosen = parent;
else
chosen = this;
}
// 6. Otherwise, if name is an ASCII case-insensitive match for "_top",
// set chosen to currentNavigable's traversable navigable.
else if (Infra::is_ascii_case_insensitive_match(name, "_top"sv)) {
chosen = traversable_navigable();
}
// 7. Otherwise, if name is not an ASCII case-insensitive match for "_blank",
// there exists a navigable whose target name is the same as name, currentNavigable's
// active browsing context is familiar with that navigable's active browsing context,
// and the user agent determines that the two browsing contexts are related enough that
// it is ok if they reach each other, set chosen to that navigable. If there are multiple
// matching navigables, the user agent should pick one in some arbitrary consistent manner,
// such as the most recently opened, most recently focused, or more closely related, and set
// chosen to it.
else if (!Infra::is_ascii_case_insensitive_match(name, "_blank"sv)) {
TODO();
}
// Otherwise, a new top-level traversable is being requested, and what happens depends on the
// user agent's configuration and abilities — it is determined by the rules given for the first
// applicable option from the following list:
else {
TODO();
}
return { chosen.ptr(), window_type };
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#getting-session-history-entries
Vector<JS::NonnullGCPtr<SessionHistoryEntry>>& Navigable::get_session_history_entries() const
{