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Libraries: Move to Userland/Libraries/

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Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
1857 changed files with 266 additions and 274 deletions
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Libraries/LibWeb/DOM/Document.cpp
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@ -1,690 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/StringBuilder.h>
#include <AK/Utf8View.h>
#include <LibCore/Timer.h>
#include <LibGUI/Application.h>
#include <LibGUI/DisplayLink.h>
#include <LibGUI/MessageBox.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Parser.h>
#include <LibJS/Runtime/Function.h>
#include <LibWeb/Bindings/DocumentWrapper.h>
#include <LibWeb/Bindings/WindowObject.h>
#include <LibWeb/CSS/StyleResolver.h>
#include <LibWeb/DOM/Comment.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/DocumentFragment.h>
#include <LibWeb/DOM/DocumentType.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/DOM/ElementFactory.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/DOM/Text.h>
#include <LibWeb/DOM/Window.h>
#include <LibWeb/Dump.h>
#include <LibWeb/HTML/AttributeNames.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/HTML/HTMLBodyElement.h>
#include <LibWeb/HTML/HTMLFrameSetElement.h>
#include <LibWeb/HTML/HTMLHeadElement.h>
#include <LibWeb/HTML/HTMLHtmlElement.h>
#include <LibWeb/HTML/HTMLScriptElement.h>
#include <LibWeb/HTML/HTMLTitleElement.h>
#include <LibWeb/InProcessWebView.h>
#include <LibWeb/Layout/BlockFormattingContext.h>
#include <LibWeb/Layout/InitialContainingBlockBox.h>
#include <LibWeb/Layout/TreeBuilder.h>
#include <LibWeb/Namespace.h>
#include <LibWeb/Origin.h>
#include <LibWeb/Page/Frame.h>
#include <LibWeb/SVG/TagNames.h>
#include <ctype.h>
#include <stdio.h>
namespace Web::DOM {
Document::Document(const URL& url)
: ParentNode(*this, NodeType::DOCUMENT_NODE)
, m_style_resolver(make<CSS::StyleResolver>(*this))
, m_style_sheets(CSS::StyleSheetList::create(*this))
, m_url(url)
, m_window(Window::create_with_document(*this))
, m_implementation(DOMImplementation::create(*this))
{
m_style_update_timer = Core::Timer::create_single_shot(0, [this] {
update_style();
});
m_forced_layout_timer = Core::Timer::create_single_shot(0, [this] {
force_layout();
});
}
Document::~Document()
{
}
void Document::removed_last_ref()
{
ASSERT(!ref_count());
ASSERT(!m_deletion_has_begun);
if (m_referencing_node_count) {
// The document has reached ref_count==0 but still has nodes keeping it alive.
// At this point, sever all the node links we control.
// If nodes remain elsewhere (e.g JS wrappers), they will keep the document alive.
// NOTE: This makes sure we stay alive across for the duration of the cleanup below.
increment_referencing_node_count();
m_focused_element = nullptr;
m_hovered_node = nullptr;
m_pending_parsing_blocking_script = nullptr;
m_inspected_node = nullptr;
m_scripts_to_execute_when_parsing_has_finished.clear();
m_scripts_to_execute_as_soon_as_possible.clear();
m_associated_inert_template_document = nullptr;
m_interpreter = nullptr;
{
// Gather up all the descendants of this document and prune them from the tree.
// FIXME: This could definitely be more elegant.
NonnullRefPtrVector<Node> descendants;
for_each_in_subtree([&](auto& node) {
if (&node != this)
descendants.append(node);
return IterationDecision::Continue;
});
for (auto& node : descendants) {
ASSERT(&node.document() == this);
ASSERT(!node.is_document());
if (node.parent())
node.parent()->remove_child(node);
}
}
m_in_removed_last_ref = false;
decrement_referencing_node_count();
return;
}
m_in_removed_last_ref = false;
m_deletion_has_begun = true;
delete this;
}
Origin Document::origin() const
{
if (!m_url.is_valid())
return {};
return { m_url.protocol(), m_url.host(), m_url.port() };
}
void Document::set_origin(const Origin& origin)
{
m_url.set_protocol(origin.protocol());
m_url.set_host(origin.host());
m_url.set_port(origin.port());
}
void Document::schedule_style_update()
{
if (m_style_update_timer->is_active())
return;
m_style_update_timer->start();
}
void Document::schedule_forced_layout()
{
if (m_forced_layout_timer->is_active())
return;
m_forced_layout_timer->start();
}
bool Document::is_child_allowed(const Node& node) const
{
switch (node.type()) {
case NodeType::DOCUMENT_NODE:
case NodeType::TEXT_NODE:
return false;
case NodeType::COMMENT_NODE:
return true;
case NodeType::DOCUMENT_TYPE_NODE:
return !first_child_of_type<DocumentType>();
case NodeType::ELEMENT_NODE:
return !first_child_of_type<Element>();
default:
return false;
}
}
const Element* Document::document_element() const
{
return first_child_of_type<Element>();
}
const HTML::HTMLHtmlElement* Document::html_element() const
{
auto* html = document_element();
if (is<HTML::HTMLHtmlElement>(html))
return downcast<HTML::HTMLHtmlElement>(html);
return nullptr;
}
const HTML::HTMLHeadElement* Document::head() const
{
auto* html = html_element();
if (!html)
return nullptr;
return html->first_child_of_type<HTML::HTMLHeadElement>();
}
const HTML::HTMLElement* Document::body() const
{
auto* html = html_element();
if (!html)
return nullptr;
auto* first_body = html->first_child_of_type<HTML::HTMLBodyElement>();
if (first_body)
return first_body;
auto* first_frameset = html->first_child_of_type<HTML::HTMLFrameSetElement>();
if (first_frameset)
return first_frameset;
return nullptr;
}
void Document::set_body(HTML::HTMLElement& new_body)
{
if (!is<HTML::HTMLBodyElement>(new_body) && !is<HTML::HTMLFrameSetElement>(new_body)) {
// FIXME: throw a "HierarchyRequestError" DOMException.
return;
}
auto* existing_body = body();
if (existing_body) {
TODO();
return;
}
auto* html = document_element();
if (!html) {
// FIXME: throw a "HierarchyRequestError" DOMException.
return;
}
// FIXME: Implement this once there's a non-const first_child_of_type:
// "Otherwise, the body element is null, but there's a document element. Append the new value to the document element."
TODO();
}
String Document::title() const
{
auto* head_element = head();
if (!head_element)
return {};
auto* title_element = head_element->first_child_of_type<HTML::HTMLTitleElement>();
if (!title_element)
return {};
auto raw_title = title_element->text_content();
StringBuilder builder;
bool last_was_space = false;
for (auto code_point : Utf8View(raw_title)) {
if (isspace(code_point)) {
last_was_space = true;
} else {
if (last_was_space && !builder.is_empty())
builder.append(' ');
builder.append_code_point(code_point);
last_was_space = false;
}
}
return builder.to_string();
}
void Document::set_title(const String& title)
{
auto* head_element = const_cast<HTML::HTMLHeadElement*>(head());
if (!head_element)
return;
RefPtr<HTML::HTMLTitleElement> title_element = head_element->first_child_of_type<HTML::HTMLTitleElement>();
if (!title_element) {
title_element = static_ptr_cast<HTML::HTMLTitleElement>(create_element(HTML::TagNames::title));
head_element->append_child(*title_element);
}
while (RefPtr<Node> child = title_element->first_child())
title_element->remove_child(child.release_nonnull());
title_element->append_child(adopt(*new Text(*this, title)));
if (auto* page = this->page())
page->client().page_did_change_title(title);
}
void Document::attach_to_frame(Badge<Frame>, Frame& frame)
{
m_frame = frame;
update_layout();
}
void Document::detach_from_frame(Badge<Frame>, Frame& frame)
{
ASSERT(&frame == m_frame);
tear_down_layout_tree();
m_frame = nullptr;
}
void Document::tear_down_layout_tree()
{
if (!m_layout_root)
return;
// Gather up all the layout nodes in a vector and detach them from parents
// while the vector keeps them alive.
NonnullRefPtrVector<Layout::Node> layout_nodes;
m_layout_root->for_each_in_subtree([&](auto& layout_node) {
layout_nodes.append(layout_node);
return IterationDecision::Continue;
});
for (auto& layout_node : layout_nodes) {
if (layout_node.parent())
layout_node.parent()->remove_child(layout_node);
}
m_layout_root = nullptr;
}
Color Document::background_color(const Palette& palette) const
{
auto default_color = palette.base();
auto* body_element = body();
if (!body_element)
return default_color;
auto* body_layout_node = body_element->layout_node();
if (!body_layout_node)
return default_color;
auto color = body_layout_node->computed_values().background_color();
if (!color.alpha())
return default_color;
return color;
}
RefPtr<Gfx::Bitmap> Document::background_image() const
{
auto* body_element = body();
if (!body_element)
return {};
auto* body_layout_node = body_element->layout_node();
if (!body_layout_node)
return {};
auto background_image = body_layout_node->background_image();
if (!background_image)
return {};
return background_image->bitmap();
}
URL Document::complete_url(const String& string) const
{
return m_url.complete_url(string);
}
void Document::invalidate_layout()
{
tear_down_layout_tree();
}
void Document::force_layout()
{
invalidate_layout();
update_layout();
}
void Document::update_layout()
{
if (!frame())
return;
if (!m_layout_root) {
Layout::TreeBuilder tree_builder;
m_layout_root = static_ptr_cast<Layout::InitialContainingBlockBox>(tree_builder.build(*this));
}
Layout::BlockFormattingContext root_formatting_context(*m_layout_root, nullptr);
root_formatting_context.run(*m_layout_root, Layout::LayoutMode::Default);
m_layout_root->set_needs_display();
if (frame()->is_main_frame()) {
if (auto* page = this->page())
page->client().page_did_layout();
}
}
static void update_style_recursively(DOM::Node& node)
{
node.for_each_child([&](auto& child) {
if (child.needs_style_update()) {
if (is<Element>(child))
downcast<Element>(child).recompute_style();
child.set_needs_style_update(false);
}
if (child.child_needs_style_update()) {
update_style_recursively(child);
child.set_child_needs_style_update(false);
}
return IterationDecision::Continue;
});
}
void Document::update_style()
{
update_style_recursively(*this);
update_layout();
}
RefPtr<Layout::Node> Document::create_layout_node()
{
return adopt(*new Layout::InitialContainingBlockBox(*this, CSS::StyleProperties::create()));
}
void Document::set_link_color(Color color)
{
m_link_color = color;
}
void Document::set_active_link_color(Color color)
{
m_active_link_color = color;
}
void Document::set_visited_link_color(Color color)
{
m_visited_link_color = color;
}
const Layout::InitialContainingBlockBox* Document::layout_node() const
{
return static_cast<const Layout::InitialContainingBlockBox*>(Node::layout_node());
}
Layout::InitialContainingBlockBox* Document::layout_node()
{
return static_cast<Layout::InitialContainingBlockBox*>(Node::layout_node());
}
void Document::set_inspected_node(Node* node)
{
if (m_inspected_node == node)
return;
if (m_inspected_node && m_inspected_node->layout_node())
m_inspected_node->layout_node()->set_needs_display();
m_inspected_node = node;
if (m_inspected_node && m_inspected_node->layout_node())
m_inspected_node->layout_node()->set_needs_display();
}
void Document::set_hovered_node(Node* node)
{
if (m_hovered_node == node)
return;
RefPtr<Node> old_hovered_node = move(m_hovered_node);
m_hovered_node = node;
invalidate_style();
}
NonnullRefPtrVector<Element> Document::get_elements_by_name(const String& name) const
{
NonnullRefPtrVector<Element> elements;
for_each_in_subtree_of_type<Element>([&](auto& element) {
if (element.attribute(HTML::AttributeNames::name) == name)
elements.append(element);
return IterationDecision::Continue;
});
return elements;
}
NonnullRefPtrVector<Element> Document::get_elements_by_tag_name(const FlyString& tag_name) const
{
NonnullRefPtrVector<Element> elements;
for_each_in_subtree_of_type<Element>([&](auto& element) {
if (element.local_name() == tag_name)
elements.append(element);
return IterationDecision::Continue;
});
return elements;
}
NonnullRefPtrVector<Element> Document::get_elements_by_class_name(const FlyString& class_name) const
{
NonnullRefPtrVector<Element> elements;
for_each_in_subtree_of_type<Element>([&](auto& element) {
if (element.has_class(class_name))
elements.append(element);
return IterationDecision::Continue;
});
return elements;
}
Color Document::link_color() const
{
if (m_link_color.has_value())
return m_link_color.value();
if (!page())
return Color::Blue;
return page()->palette().link();
}
Color Document::active_link_color() const
{
if (m_active_link_color.has_value())
return m_active_link_color.value();
if (!page())
return Color::Red;
return page()->palette().active_link();
}
Color Document::visited_link_color() const
{
if (m_visited_link_color.has_value())
return m_visited_link_color.value();
if (!page())
return Color::Magenta;
return page()->palette().visited_link();
}
static JS::VM& main_thread_vm()
{
static RefPtr<JS::VM> vm;
if (!vm) {
vm = JS::VM::create();
vm->set_should_log_exceptions(true);
}
return *vm;
}
JS::Interpreter& Document::interpreter()
{
if (!m_interpreter)
m_interpreter = JS::Interpreter::create<Bindings::WindowObject>(main_thread_vm(), *m_window);
return *m_interpreter;
}
JS::Value Document::run_javascript(const StringView& source)
{
auto parser = JS::Parser(JS::Lexer(source));
auto program = parser.parse_program();
if (parser.has_errors()) {
parser.print_errors();
return JS::js_undefined();
}
auto& interpreter = document().interpreter();
auto result = interpreter.run(interpreter.global_object(), *program);
if (interpreter.exception())
interpreter.vm().clear_exception();
return result;
}
NonnullRefPtr<Element> Document::create_element(const String& tag_name)
{
// FIXME: Let namespace be the HTML namespace, if this is an HTML document or this’s content type is "application/xhtml+xml", and null otherwise.
return DOM::create_element(*this, tag_name, Namespace::HTML);
}
NonnullRefPtr<DocumentFragment> Document::create_document_fragment()
{
return adopt(*new DocumentFragment(*this));
}
NonnullRefPtr<Text> Document::create_text_node(const String& data)
{
return adopt(*new Text(*this, data));
}
NonnullRefPtr<Comment> Document::create_comment(const String& data)
{
return adopt(*new Comment(*this, data));
}
void Document::set_pending_parsing_blocking_script(Badge<HTML::HTMLScriptElement>, HTML::HTMLScriptElement* script)
{
m_pending_parsing_blocking_script = script;
}
NonnullRefPtr<HTML::HTMLScriptElement> Document::take_pending_parsing_blocking_script(Badge<HTML::HTMLDocumentParser>)
{
return m_pending_parsing_blocking_script.release_nonnull();
}
void Document::add_script_to_execute_when_parsing_has_finished(Badge<HTML::HTMLScriptElement>, HTML::HTMLScriptElement& script)
{
m_scripts_to_execute_when_parsing_has_finished.append(script);
}
NonnullRefPtrVector<HTML::HTMLScriptElement> Document::take_scripts_to_execute_when_parsing_has_finished(Badge<HTML::HTMLDocumentParser>)
{
return move(m_scripts_to_execute_when_parsing_has_finished);
}
void Document::add_script_to_execute_as_soon_as_possible(Badge<HTML::HTMLScriptElement>, HTML::HTMLScriptElement& script)
{
m_scripts_to_execute_as_soon_as_possible.append(script);
}
NonnullRefPtrVector<HTML::HTMLScriptElement> Document::take_scripts_to_execute_as_soon_as_possible(Badge<HTML::HTMLDocumentParser>)
{
return move(m_scripts_to_execute_as_soon_as_possible);
}
void Document::adopt_node(Node& subtree_root)
{
subtree_root.for_each_in_subtree([&](auto& node) {
node.set_document({}, *this);
return IterationDecision::Continue;
});
}
const DocumentType* Document::doctype() const
{
return first_child_of_type<DocumentType>();
}
const String& Document::compat_mode() const
{
static String back_compat = "BackCompat";
static String css1_compat = "CSS1Compat";
if (m_quirks_mode == QuirksMode::Yes)
return back_compat;
return css1_compat;
}
bool Document::is_editable() const
{
return m_editable;
}
void Document::set_focused_element(Element* element)
{
if (m_focused_element == element)
return;
m_focused_element = element;
if (m_layout_root)
m_layout_root->set_needs_display();
}
void Document::set_ready_state(const String& ready_state)
{
m_ready_state = ready_state;
dispatch_event(Event::create(HTML::EventNames::readystatechange));
}
Page* Document::page()
{
return m_frame ? m_frame->page() : nullptr;
}
const Page* Document::page() const
{
return m_frame ? m_frame->page() : nullptr;
}
EventTarget* Document::get_parent(const Event& event)
{
if (event.type() == HTML::EventNames::load)
return nullptr;
return &window();
}
void Document::completely_finish_loading()
{
// FIXME: This needs to handle iframes.
dispatch_event(DOM::Event::create(HTML::EventNames::load));
}
}