mirror of
https://github.com/RGBCube/serenity
synced 2025-10-30 18:12:45 +00:00
3a4565beec
This patch makes both of these classes inherit from RefCounted and Bindings::Wrappable, plus some minimal rejigging to allow us to keep using them internally while also exposing them to web content.
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*
|
|
* Copyright (c) 2021, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/Debug.h>
|
|
#include <AK/URL.h>
|
|
#include <LibWeb/CSS/Parser/Parser.h>
|
|
#include <LibWeb/DOM/Document.h>
|
|
#include <LibWeb/DOM/Element.h>
|
|
#include <LibWeb/Loader/CSSLoader.h>
|
|
#include <LibWeb/Loader/ResourceLoader.h>
|
|
|
|
namespace Web {
|
|
|
|
CSSLoader::CSSLoader(DOM::Element& owner_element)
|
|
: m_owner_element(owner_element)
|
|
{
|
|
}
|
|
|
|
void CSSLoader::load_from_text(const String& text)
|
|
{
|
|
m_style_sheet = parse_css(CSS::ParsingContext(m_owner_element.document()), text);
|
|
if (!m_style_sheet) {
|
|
m_style_sheet = CSS::CSSStyleSheet::create({});
|
|
m_style_sheet->set_owner_node(&m_owner_element);
|
|
}
|
|
|
|
load_next_import_if_needed();
|
|
}
|
|
|
|
void CSSLoader::load_from_url(const AK::URL& url)
|
|
{
|
|
m_style_sheet = CSS::CSSStyleSheet::create({});
|
|
m_style_sheet->set_owner_node(&m_owner_element);
|
|
|
|
auto request = LoadRequest::create_for_url_on_page(url, m_owner_element.document().page());
|
|
set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
|
|
|
|
m_document_load_event_delayer.emplace(m_owner_element.document());
|
|
}
|
|
|
|
void CSSLoader::resource_did_load()
|
|
{
|
|
VERIFY(resource());
|
|
|
|
m_document_load_event_delayer.clear();
|
|
|
|
if (!resource()->has_encoded_data()) {
|
|
dbgln_if(CSS_LOADER_DEBUG, "CSSLoader: Resource did load, no encoded data. URL: {}", resource()->url());
|
|
} else {
|
|
dbgln_if(CSS_LOADER_DEBUG, "CSSLoader: Resource did load, has encoded data. URL: {}", resource()->url());
|
|
}
|
|
|
|
auto sheet = parse_css(CSS::ParsingContext(m_owner_element.document()), resource()->encoded_data());
|
|
if (!sheet) {
|
|
dbgln_if(CSS_LOADER_DEBUG, "CSSLoader: Failed to parse stylesheet: {}", resource()->url());
|
|
return;
|
|
}
|
|
|
|
bool was_imported = m_style_sheet->for_first_not_loaded_import_rule([&](auto& rule) {
|
|
rule.set_style_sheet(sheet);
|
|
});
|
|
|
|
// Transfer the rules from the successfully parsed sheet into the sheet we've already inserted.
|
|
// FIXME: @import rules need work.
|
|
if (!was_imported) {
|
|
m_style_sheet->set_rules(sheet->rules());
|
|
}
|
|
|
|
if (on_load)
|
|
on_load();
|
|
|
|
load_next_import_if_needed();
|
|
}
|
|
|
|
void CSSLoader::resource_did_fail()
|
|
{
|
|
dbgln_if(CSS_LOADER_DEBUG, "CSSLoader: Resource did fail. URL: {}", resource()->url());
|
|
|
|
m_document_load_event_delayer.clear();
|
|
|
|
load_next_import_if_needed();
|
|
}
|
|
|
|
void CSSLoader::load_next_import_if_needed()
|
|
{
|
|
// Create load request for the first import which isn't loaded.
|
|
// TODO: We need to somehow handle infinite cycles in imports.
|
|
m_style_sheet->for_first_not_loaded_import_rule([&](auto& rule) {
|
|
dbgln_if(CSS_LOADER_DEBUG, "CSSLoader: Loading @import {}", rule.url());
|
|
|
|
LoadRequest request;
|
|
request.set_url(rule.url());
|
|
set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
|
|
});
|
|
}
|
|
|
|
}
|