123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184 |
- /*
- * Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
- * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <LibJS/Heap/Heap.h>
- #include <LibJS/Runtime/Realm.h>
- #include <LibJS/Runtime/Set.h>
- #include <LibWeb/Bindings/FontFaceSetPrototype.h>
- #include <LibWeb/Bindings/Intrinsics.h>
- #include <LibWeb/CSS/FontFace.h>
- #include <LibWeb/CSS/FontFaceSet.h>
- #include <LibWeb/HTML/EventNames.h>
- #include <LibWeb/WebIDL/Promise.h>
- namespace Web::CSS {
- JS_DEFINE_ALLOCATOR(FontFaceSet);
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-fontfaceset
- JS::NonnullGCPtr<FontFaceSet> FontFaceSet::construct_impl(JS::Realm& realm, Vector<JS::Handle<FontFace>> const& initial_faces)
- {
- auto ready_promise = WebIDL::create_promise(realm);
- auto set_entries = JS::Set::create(realm);
- // The FontFaceSet constructor, when called, must iterate its initialFaces argument and add each value to its set entries.
- for (auto const& face : initial_faces)
- set_entries->set_add(face);
- return realm.heap().allocate<FontFaceSet>(realm, realm, ready_promise, set_entries);
- }
- JS::NonnullGCPtr<FontFaceSet> FontFaceSet::create(JS::Realm& realm)
- {
- return construct_impl(realm, {});
- }
- FontFaceSet::FontFaceSet(JS::Realm& realm, JS::NonnullGCPtr<WebIDL::Promise> ready_promise, JS::NonnullGCPtr<JS::Set> set_entries)
- : DOM::EventTarget(realm)
- , m_set_entries(set_entries)
- , m_ready_promise(ready_promise)
- , m_status(Bindings::FontFaceSetLoadStatus::Loaded)
- {
- }
- void FontFaceSet::initialize(JS::Realm& realm)
- {
- Base::initialize(realm);
- WEB_SET_PROTOTYPE_FOR_INTERFACE(FontFaceSet);
- }
- void FontFaceSet::visit_edges(Cell::Visitor& visitor)
- {
- Base::visit_edges(visitor);
- visitor.visit(m_set_entries);
- visitor.visit(m_ready_promise);
- visitor.visit(m_loading_fonts);
- visitor.visit(m_loaded_fonts);
- visitor.visit(m_failed_fonts);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-add
- WebIDL::ExceptionOr<JS::NonnullGCPtr<FontFaceSet>>
- FontFaceSet::add(JS::Handle<FontFace> face)
- {
- // 1. If font is already in the FontFaceSet’s set entries, skip to the last step of this algorithm immediately.
- if (m_set_entries->set_has(face))
- return JS::NonnullGCPtr<FontFaceSet>(*this);
- // 2. If font is CSS-connected, throw an InvalidModificationError exception and exit this algorithm immediately.
- if (face->is_css_connected()) {
- return WebIDL::InvalidModificationError::create(realm(), "Cannot add a CSS-connected FontFace to a FontFaceSet"_fly_string);
- }
- // 3. Add the font argument to the FontFaceSet’s set entries.
- m_set_entries->set_add(face);
- // 4. If font’s status attribute is "loading"
- if (face->status() == Bindings::FontFaceLoadStatus::Loading) {
- // 1. If the FontFaceSet’s [[LoadingFonts]] list is empty, switch the FontFaceSet to loading.
- if (m_loading_fonts.is_empty()) {
- m_status = Bindings::FontFaceSetLoadStatus::Loading;
- }
- // 2. Append font to the FontFaceSet’s [[LoadingFonts]] list.
- m_loading_fonts.append(*face);
- }
- // 5. Return the FontFaceSet.
- return JS::NonnullGCPtr<FontFaceSet>(*this);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-delete
- bool FontFaceSet::delete_(JS::Handle<FontFace> face)
- {
- // 1. If font is CSS-connected, return false and exit this algorithm immediately.
- if (face->is_css_connected()) {
- return false;
- }
- // 2. Let deleted be the result of removing font from the FontFaceSet’s set entries.
- bool deleted = m_set_entries->set_remove(face);
- // 3. If font is present in the FontFaceSet’s [[LoadedFonts]], or [[FailedFonts]] lists, remove it.
- m_loaded_fonts.remove_all_matching([face](auto const& entry) { return entry == face; });
- m_failed_fonts.remove_all_matching([face](auto const& entry) { return entry == face; });
- // 4. If font is present in the FontFaceSet’s [[LoadingFonts]] list, remove it. If font was the last item in that list (and so the list is now empty), switch the FontFaceSet to loaded.
- m_loading_fonts.remove_all_matching([face](auto const& entry) { return entry == face; });
- if (m_loading_fonts.is_empty()) {
- m_status = Bindings::FontFaceSetLoadStatus::Loaded;
- }
- return deleted;
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-clear
- void FontFaceSet::clear()
- {
- // FIXME: Do the actual spec steps
- m_set_entries->set_clear();
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloading
- void FontFaceSet::set_onloading(WebIDL::CallbackType* event_handler)
- {
- set_event_handler_attribute(HTML::EventNames::loading, event_handler);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloading
- WebIDL::CallbackType* FontFaceSet::onloading()
- {
- return event_handler_attribute(HTML::EventNames::loading);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloadingdone
- void FontFaceSet::set_onloadingdone(WebIDL::CallbackType* event_handler)
- {
- set_event_handler_attribute(HTML::EventNames::loadingdone, event_handler);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloadingdone
- WebIDL::CallbackType* FontFaceSet::onloadingdone()
- {
- return event_handler_attribute(HTML::EventNames::loadingdone);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloadingerror
- void FontFaceSet::set_onloadingerror(WebIDL::CallbackType* event_handler)
- {
- set_event_handler_attribute(HTML::EventNames::loadingerror, event_handler);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloadingerror
- WebIDL::CallbackType* FontFaceSet::onloadingerror()
- {
- return event_handler_attribute(HTML::EventNames::loadingerror);
- }
- // https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-load
- JS::ThrowCompletionOr<JS::NonnullGCPtr<JS::Promise>> FontFaceSet::load(String const&, String const&)
- {
- // FIXME: Do the steps
- auto promise = WebIDL::create_rejected_promise(realm(), WebIDL::NotSupportedError::create(realm(), "FontFaceSet::load is not yet implemented"_fly_string));
- return verify_cast<JS::Promise>(*promise->promise());
- }
- // https://drafts.csswg.org/css-font-loading/#font-face-set-ready
- JS::NonnullGCPtr<JS::Promise> FontFaceSet::ready() const
- {
- return verify_cast<JS::Promise>(*m_ready_promise->promise());
- }
- void FontFaceSet::resolve_ready_promise()
- {
- WebIDL::resolve_promise(realm(), *m_ready_promise);
- }
- }
|