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2a7924f96c
This patch implements the "create a new browsing context" function from the HTML spec and replaces our existing logic with it. The big difference is that browsing contexts now initially navigate to "about:blank" instead of starting out in a strange "empty" state. This makes it possible for websites to create a new iframe and start scripting inside it right away, without having to load an URL into it.
115 lines
4.5 KiB
C++
115 lines
4.5 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/HTML/BrowsingContextContainer.h>
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#include <LibWeb/HTML/Origin.h>
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#include <LibWeb/Page/Page.h>
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namespace Web::HTML {
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BrowsingContextContainer::BrowsingContextContainer(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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}
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BrowsingContextContainer::~BrowsingContextContainer() = default;
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// https://html.spec.whatwg.org/multipage/browsers.html#creating-a-new-nested-browsing-context
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void BrowsingContextContainer::create_new_nested_browsing_context()
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{
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// 1. Let group be element's node document's browsing context's top-level browsing context's group.
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// FIXME: We do not have a concept of "browsing context groups" yet.
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auto* group = document().browsing_context();
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if (!group)
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return;
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VERIFY(group->page());
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// 2. Let browsingContext be the result of creating a new browsing context with element's node document, element, and group.
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// 3. Set element's nested browsing context to browsingContext.
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m_nested_browsing_context = BrowsingContext::create_a_new_browsing_context(*group->page(), document(), *this);
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group->append_child(*m_nested_browsing_context);
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m_nested_browsing_context->set_frame_nesting_levels(group->frame_nesting_levels());
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m_nested_browsing_context->register_frame_nesting(document().url());
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// 4. If element has a name attribute, then set browsingContext's name to the value of this attribute.
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if (auto name = attribute(HTML::AttributeNames::name); !name.is_empty())
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m_nested_browsing_context->set_name(name);
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}
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// https://html.spec.whatwg.org/multipage/window-object.html#a-browsing-context-is-discarded
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void BrowsingContextContainer::discard_nested_browsing_context()
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{
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// 1. Discard all Document objects for all the entries in browsingContext's session history.
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if (m_nested_browsing_context && m_nested_browsing_context->parent())
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m_nested_browsing_context->parent()->remove_child(*m_nested_browsing_context);
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// 2. If browsingContext is a top-level browsing context, then remove browsingContext.
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// NOTE: We skip this here because this is by definition a nested browsing context, not top-level.
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}
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// https://html.spec.whatwg.org/multipage/browsers.html#concept-bcc-content-document
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const DOM::Document* BrowsingContextContainer::content_document() const
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{
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// 1. If container's nested browsing context is null, then return null.
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if (m_nested_browsing_context == nullptr)
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return nullptr;
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// 2. Let context be container's nested browsing context.
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auto const& context = *m_nested_browsing_context;
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// 3. Let document be context's active document.
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auto const* document = context.active_document();
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// FIXME: This should not be here, as we're expected to have a document at this point.
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if (!document)
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return nullptr;
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VERIFY(document);
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VERIFY(m_document);
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// 4. If document's origin and container's node document's origin are not same origin-domain, then return null.
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if (!document->origin().is_same_origin_domain(m_document->origin()))
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return nullptr;
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// 5. Return document.
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return document;
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}
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DOM::Document const* BrowsingContextContainer::content_document_without_origin_check() const
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{
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if (!m_nested_browsing_context)
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return nullptr;
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return m_nested_browsing_context->active_document();
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}
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// https://html.spec.whatwg.org/multipage/embedded-content-other.html#dom-media-getsvgdocument
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const DOM::Document* BrowsingContextContainer::get_svg_document() const
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{
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// 1. Let document be this element's content document.
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auto const* document = content_document();
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// 2. If document is non-null and was created by the page load processing model for XML files section because the computed type of the resource in the navigate algorithm was image/svg+xml, then return document.
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if (document && document->content_type() == "image/svg+xml"sv)
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return document;
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// 3. Return null.
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return nullptr;
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}
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HTML::Window* BrowsingContextContainer::content_window() const
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{
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// FIXME: This should return the WindowProxy
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auto* document = content_document();
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if (!document)
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return nullptr;
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return const_cast<HTML::Window*>(&document->window());
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}
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}
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