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7d00bd5e06
This CL implements custom elements. The design is as follows:
1) Authors subclass Element and call registerElement.
2) When we create C++ elements for custom elements, we call the author's
constructor synchronously.
3) The attach/detach/attributeChanged callbacks are called either:
a) when exiting the current custom element callback scoped (e.g., before
returning from appendChild), or
b) when draining the microtask queue.
The implementation in this CL is a bit fragile because we don't detect name
registration conflicts and we let you create custom elements with the same name
as built-in elements. Also, not every part of the engine is prepared to execute
script synchronously below createElement. We'll need to iron out these issues
over time, but this CL is a start.
R=ojan@chromium.org
Review URL: https://codereview.chromium.org/943013002
99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2001 Dirk Mueller (mueller@kde.org)
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* (C) 2006 Alexey Proskuryakov (ap@webkit.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
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* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
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* Copyright (C) 2013 Google Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/core/dom/DocumentInit.h"
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#include "gen/sky/platform/RuntimeEnabledFeatures.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/dom/custom2/new_custom_element_registry.h"
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#include "sky/engine/core/frame/LocalFrame.h"
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#include "sky/engine/core/html/imports/HTMLImportsController.h"
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namespace blink {
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DocumentInit::DocumentInit(const KURL& url, LocalFrame* frame, WeakPtr<Document> contextDocument, HTMLImportsController* importsController)
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: m_url(url)
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, m_frame(frame)
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, m_contextDocument(contextDocument)
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, m_importsController(importsController)
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{
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}
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DocumentInit::DocumentInit(const DocumentInit& other)
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: m_url(other.m_url)
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, m_frame(other.m_frame)
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, m_contextDocument(other.m_contextDocument)
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, m_importsController(other.m_importsController)
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, m_elementRegistry(other.m_elementRegistry)
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{
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}
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DocumentInit::~DocumentInit()
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{
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}
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bool DocumentInit::shouldSetURL() const
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{
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return !m_url.isEmpty();
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}
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LocalFrame* DocumentInit::frameForSecurityContext() const
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{
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if (m_frame)
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return m_frame;
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if (m_importsController)
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return m_importsController->master()->frame();
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return 0;
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}
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Settings* DocumentInit::settings() const
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{
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ASSERT(frameForSecurityContext());
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return frameForSecurityContext()->settings();
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}
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DocumentInit& DocumentInit::withElementRegistry(NewCustomElementRegistry& elementregistry)
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{
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ASSERT(!m_elementRegistry);
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m_elementRegistry = &elementregistry;
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return *this;
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}
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WeakPtr<Document> DocumentInit::contextDocument() const
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{
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return m_contextDocument;
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}
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DocumentInit DocumentInit::fromContext(WeakPtr<Document> contextDocument, const KURL& url)
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{
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return DocumentInit(url, 0, contextDocument, 0);
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}
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} // namespace blink
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