| /* |
| * Copyright (C) 2020 Apple Inc. 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h" |
| #include "APIContentWorld.h" |
| |
| #include "ContentWorldShared.h" |
| #include "WebUserContentControllerProxy.h" |
| #include <wtf/HashMap.h> |
| #include <wtf/text/StringHash.h> |
| |
| namespace API { |
| |
| static HashMap<WTF::String, ContentWorld*>& sharedWorldNameMap() |
| { |
| static NeverDestroyed<HashMap<WTF::String, ContentWorld*>> sharedMap; |
| return sharedMap; |
| } |
| |
| static HashMap<WebKit::ContentWorldIdentifier, ContentWorld*>& sharedWorldIdentifierMap() |
| { |
| static NeverDestroyed<HashMap<WebKit::ContentWorldIdentifier, ContentWorld*>> sharedMap; |
| return sharedMap; |
| } |
| |
| ContentWorld* ContentWorld::worldForIdentifier(WebKit::ContentWorldIdentifier identifer) |
| { |
| return sharedWorldIdentifierMap().get(identifer); |
| } |
| |
| ContentWorld::ContentWorld(const WTF::String& name) |
| : m_name(name) |
| { |
| static std::once_flag once; |
| std::call_once(once, [] { |
| // To make sure we don't use our shared pageContentWorld identifier for this |
| // content world we're about to make, burn through one identifier. |
| auto identifier = WebKit::ContentWorldIdentifier::generate(); |
| ASSERT_UNUSED(identifier, identifier.toUInt64() >= WebKit::pageContentWorldIdentifier().toUInt64()); |
| }); |
| |
| m_identifier = WebKit::ContentWorldIdentifier::generate(); |
| auto addResult = sharedWorldIdentifierMap().add(m_identifier, this); |
| ASSERT_UNUSED(addResult, addResult.isNewEntry); |
| } |
| |
| ContentWorld::ContentWorld(WebKit::ContentWorldIdentifier identifier) |
| : m_identifier(identifier) |
| { |
| ASSERT(m_identifier == WebKit::pageContentWorldIdentifier()); |
| } |
| |
| Ref<ContentWorld> ContentWorld::sharedWorldWithName(const WTF::String& name) |
| { |
| auto result = sharedWorldNameMap().add(name, nullptr); |
| if (result.isNewEntry) { |
| result.iterator->value = new ContentWorld(name); |
| return adoptRef(*result.iterator->value); |
| } |
| |
| return *result.iterator->value; |
| } |
| |
| ContentWorld& ContentWorld::pageContentWorld() |
| { |
| static NeverDestroyed<RefPtr<ContentWorld>> world(adoptRef(new ContentWorld(WebKit::pageContentWorldIdentifier()))); |
| return *world.get(); |
| } |
| |
| ContentWorld& ContentWorld::defaultClientWorld() |
| { |
| static NeverDestroyed<RefPtr<ContentWorld>> world(adoptRef(new ContentWorld(WTF::String { }))); |
| return *world.get(); |
| } |
| |
| ContentWorld::~ContentWorld() |
| { |
| ASSERT(m_identifier != WebKit::pageContentWorldIdentifier()); |
| |
| auto result = sharedWorldIdentifierMap().take(m_identifier); |
| ASSERT_UNUSED(result, result == this || m_identifier == WebKit::pageContentWorldIdentifier()); |
| |
| if (!name().isNull()) { |
| auto taken = sharedWorldNameMap().take(name()); |
| ASSERT_UNUSED(taken, taken == this); |
| } |
| |
| for (auto proxy : m_associatedContentControllerProxies) |
| proxy->contentWorldDestroyed(*this); |
| } |
| |
| void ContentWorld::addAssociatedUserContentControllerProxy(WebKit::WebUserContentControllerProxy& proxy) |
| { |
| auto addResult = m_associatedContentControllerProxies.add(&proxy); |
| ASSERT_UNUSED(addResult, addResult.isNewEntry); |
| } |
| |
| void ContentWorld::userContentControllerProxyDestroyed(WebKit::WebUserContentControllerProxy& proxy) |
| { |
| bool removed = m_associatedContentControllerProxies.remove(&proxy); |
| ASSERT_UNUSED(removed, removed); |
| } |
| |
| } // namespace API |