| /* |
| * Copyright (C) 2013 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * 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 |
| * OWNER 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 "config.h" |
| #include "core/html/LinkImport.h" |
| |
| #include "core/dom/Document.h" |
| #include "core/fetch/CrossOriginAccessControl.h" |
| #include "core/html/HTMLImportLoader.h" |
| #include "core/html/HTMLImportsController.h" |
| #include "core/html/HTMLLinkElement.h" |
| |
| |
| namespace WebCore { |
| |
| PassRefPtr<LinkImport> LinkImport::create(HTMLLinkElement* owner) |
| { |
| return adoptRef(new LinkImport(owner)); |
| } |
| |
| LinkImport::LinkImport(HTMLLinkElement* owner) |
| : LinkResource(owner) |
| { |
| } |
| |
| LinkImport::~LinkImport() |
| { |
| clear(); |
| } |
| |
| Document* LinkImport::importedDocument() const |
| { |
| if (!m_loader) |
| return 0; |
| return m_loader->importedDocument(); |
| } |
| |
| void LinkImport::process() |
| { |
| if (m_loader) |
| return; |
| if (!m_owner) |
| return; |
| if (!m_owner->document().frame() && !m_owner->document().import()) |
| return; |
| |
| if (!m_owner->document().import()) { |
| ASSERT(m_owner->document().frame()); // The document should be the master. |
| HTMLImportsController::provideTo(&m_owner->document()); |
| } |
| |
| LinkRequestBuilder builder(m_owner); |
| if (!builder.isValid()) { |
| didFinish(); |
| return; |
| } |
| |
| HTMLImport* parent = m_owner->document().import(); |
| HTMLImportsController* controller = parent->controller(); |
| m_loader = controller->createLoader(parent, builder.build(true)); |
| if (!m_loader) { |
| didFinish(); |
| return; |
| } |
| |
| m_loader->addClient(this); |
| } |
| |
| void LinkImport::clear() |
| { |
| m_owner = 0; |
| |
| if (m_loader) { |
| m_loader->removeClient(this); |
| m_loader.clear(); |
| } |
| } |
| |
| void LinkImport::ownerRemoved() |
| { |
| clear(); |
| } |
| |
| void LinkImport::didFinish() |
| { |
| if (!m_owner) |
| return; |
| m_owner->scheduleEvent(); |
| } |
| |
| bool LinkImport::hasLoaded() const |
| { |
| return m_loader && m_loader->isLoaded(); |
| } |
| |
| } // namespace WebCore |