| /* |
| * 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 "third_party/blink/renderer/core/html/imports/link_import.h" |
| |
| #include "services/network/public/mojom/referrer_policy.mojom-blink.h" |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/html/html_link_element.h" |
| #include "third_party/blink/renderer/core/html/imports/html_import_child.h" |
| #include "third_party/blink/renderer/core/html/imports/html_import_loader.h" |
| #include "third_party/blink/renderer/core/html/imports/html_import_tree_root.h" |
| #include "third_party/blink/renderer/core/html/imports/html_imports_controller.h" |
| #include "third_party/blink/renderer/core/html_names.h" |
| #include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h" |
| #include "third_party/blink/renderer/platform/loader/fetch/resource_loader_options.h" |
| #include "third_party/blink/renderer/platform/loader/fetch/resource_request.h" |
| #include "third_party/blink/renderer/platform/weborigin/kurl.h" |
| #include "third_party/blink/renderer/platform/weborigin/security_policy.h" |
| #include "third_party/blink/renderer/platform/wtf/text/atomic_string.h" |
| |
| namespace blink { |
| |
| LinkImport::LinkImport(HTMLLinkElement* owner) |
| : LinkResource(owner), child_(nullptr) {} |
| |
| LinkImport::~LinkImport() = default; |
| |
| Document* LinkImport::ImportedDocument() const { |
| if (!child_ || !owner_ || !owner_->isConnected()) |
| return nullptr; |
| if (child_->Loader()->HasError()) |
| return nullptr; |
| return child_->GetDocument(); |
| } |
| |
| void LinkImport::Process() { |
| if (child_) |
| return; |
| if (!owner_) |
| return; |
| if (!ShouldLoadResource()) |
| return; |
| |
| const KURL& url = owner_->GetNonEmptyURLAttribute(html_names::kHrefAttr); |
| if (url.IsEmpty() || !url.IsValid()) { |
| DidFinish(); |
| return; |
| } |
| |
| ResourceRequest resource_request(GetDocument().CompleteURL(url)); |
| network::mojom::ReferrerPolicy referrer_policy = owner_->GetReferrerPolicy(); |
| resource_request.SetReferrerPolicy(referrer_policy); |
| |
| ResourceLoaderOptions options(GetExecutionContext()->GetCurrentWorld()); |
| options.initiator_info.name = owner_->localName(); |
| |
| FetchParameters params(std::move(resource_request), options); |
| params.SetCharset(GetCharset()); |
| params.SetContentSecurityPolicyNonce(owner_->nonce()); |
| |
| HTMLImportsController* controller = GetDocument().EnsureImportsController(); |
| child_ = controller->Load(GetDocument(), this, params); |
| if (!child_) { |
| DidFinish(); |
| return; |
| } |
| } |
| |
| void LinkImport::DidFinish() { |
| if (!owner_ || !owner_->isConnected()) |
| return; |
| owner_->ScheduleEvent(); |
| } |
| |
| void LinkImport::ImportChildWasDisposed(HTMLImportChild* child) { |
| DCHECK_EQ(child_, child); |
| child_ = nullptr; |
| owner_ = nullptr; |
| } |
| |
| bool LinkImport::IsSync() const { |
| return owner_ && !owner_->Async(); |
| } |
| |
| HTMLLinkElement* LinkImport::Link() { |
| return owner_; |
| } |
| |
| bool LinkImport::HasLoaded() const { |
| return owner_ && child_ && child_->HasFinishedLoading() && |
| !child_->Loader()->HasError(); |
| } |
| |
| void LinkImport::OwnerInserted() { |
| if (child_) |
| child_->OwnerInserted(); |
| } |
| |
| void LinkImport::OwnerRemoved() { |
| if (owner_) |
| GetDocument().GetStyleEngine().HtmlImportAddedOrRemoved(); |
| } |
| |
| void LinkImport::Trace(Visitor* visitor) const { |
| visitor->Trace(child_); |
| HTMLImportChildClient::Trace(visitor); |
| LinkResource::Trace(visitor); |
| } |
| |
| } // namespace blink |