| /* |
| * 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: |
| * |
| * 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. |
| * 3. 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/custom/v0_custom_element_registration_context.h" |
| |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/dom/element.h" |
| #include "third_party/blink/renderer/core/html/custom/v0_custom_element.h" |
| #include "third_party/blink/renderer/core/html/custom/v0_custom_element_definition.h" |
| #include "third_party/blink/renderer/core/html/custom/v0_custom_element_scheduler.h" |
| #include "third_party/blink/renderer/core/html/html_element.h" |
| #include "third_party/blink/renderer/core/html/html_unknown_element.h" |
| #include "third_party/blink/renderer/core/html_names.h" |
| #include "third_party/blink/renderer/core/svg/svg_unknown_element.h" |
| #include "third_party/blink/renderer/core/svg_names.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| |
| namespace blink { |
| |
| V0CustomElementRegistrationContext::V0CustomElementRegistrationContext() |
| : candidates_(V0CustomElementUpgradeCandidateMap::Create()) {} |
| |
| void V0CustomElementRegistrationContext::RegisterElement( |
| Document* document, |
| V0CustomElementConstructorBuilder* constructor_builder, |
| const AtomicString& type, |
| ExceptionState& exception_state) { |
| V0CustomElementDefinition* definition = registry_.RegisterElement( |
| document, constructor_builder, type, exception_state); |
| |
| if (!definition) |
| return; |
| |
| // Upgrade elements that were waiting for this definition. |
| V0CustomElementUpgradeCandidateMap::ElementSet* upgrade_candidates = |
| candidates_->TakeUpgradeCandidatesFor(definition->Descriptor()); |
| |
| if (!upgrade_candidates) |
| return; |
| |
| for (const auto& candidate : *upgrade_candidates) |
| V0CustomElement::Define(candidate, definition); |
| } |
| |
| Element* V0CustomElementRegistrationContext::CreateCustomTagElement( |
| Document& document, |
| const QualifiedName& tag_name) { |
| DCHECK(V0CustomElement::IsValidName(tag_name.LocalName())); |
| |
| Element* element; |
| |
| if (html_names::xhtmlNamespaceURI == tag_name.NamespaceURI()) { |
| element = HTMLElement::Create(tag_name, document); |
| } else if (svg_names::kNamespaceURI == tag_name.NamespaceURI()) { |
| element = SVGUnknownElement::Create(tag_name, document); |
| } else { |
| // XML elements are not custom elements, so return early. |
| return Element::Create(tag_name, &document); |
| } |
| |
| element->SetV0CustomElementState(Element::kV0WaitingForUpgrade); |
| ResolveOrScheduleResolution(element, g_null_atom); |
| return element; |
| } |
| |
| void V0CustomElementRegistrationContext::DidGiveTypeExtension( |
| Element* element, |
| const AtomicString& type) { |
| ResolveOrScheduleResolution(element, type); |
| } |
| |
| void V0CustomElementRegistrationContext::ResolveOrScheduleResolution( |
| Element* element, |
| const AtomicString& type_extension) { |
| // If an element has a custom tag name it takes precedence over |
| // the "is" attribute (if any). |
| const AtomicString& type = V0CustomElement::IsValidName(element->localName()) |
| ? element->localName() |
| : type_extension; |
| DCHECK(!type.IsNull()); |
| |
| V0CustomElementDescriptor descriptor(type, element->namespaceURI(), |
| element->localName()); |
| DCHECK_EQ(element->GetV0CustomElementState(), Element::kV0WaitingForUpgrade); |
| |
| V0CustomElementScheduler::ResolveOrScheduleResolution(this, element, |
| descriptor); |
| } |
| |
| void V0CustomElementRegistrationContext::Resolve( |
| Element* element, |
| const V0CustomElementDescriptor& descriptor) { |
| V0CustomElementDefinition* definition = registry_.Find(descriptor); |
| if (definition) { |
| V0CustomElement::Define(element, definition); |
| } else { |
| DCHECK_EQ(element->GetV0CustomElementState(), |
| Element::kV0WaitingForUpgrade); |
| candidates_->Add(descriptor, element); |
| } |
| } |
| |
| void V0CustomElementRegistrationContext::SetIsAttributeAndTypeExtension( |
| Element* element, |
| const AtomicString& type) { |
| DCHECK(element); |
| DCHECK(!type.IsEmpty()); |
| element->setAttribute(html_names::kIsAttr, type); |
| SetTypeExtension(element, type); |
| } |
| |
| void V0CustomElementRegistrationContext::SetTypeExtension( |
| Element* element, |
| const AtomicString& type) { |
| if (!element->IsHTMLElement() && !element->IsSVGElement()) |
| return; |
| |
| V0CustomElementRegistrationContext* context = |
| element->GetDocument().RegistrationContext(); |
| if (!context) |
| return; |
| |
| if (element->IsV0CustomElement()) { |
| // This can happen if: |
| // 1. The element has a custom tag, which takes precedence over |
| // type extensions. |
| // 2. Undoing a command (eg ReplaceNodeWithSpan) recycles an |
| // element but tries to overwrite its attribute list. |
| return; |
| } |
| |
| // Custom tags take precedence over type extensions |
| DCHECK(!V0CustomElement::IsValidName(element->localName())); |
| |
| if (!V0CustomElement::IsValidName(type)) |
| return; |
| |
| element->SetV0CustomElementState(Element::kV0WaitingForUpgrade); |
| context->DidGiveTypeExtension(element, |
| element->GetDocument().ConvertLocalName(type)); |
| } |
| |
| bool V0CustomElementRegistrationContext::NameIsDefined( |
| const AtomicString& name) const { |
| return registry_.NameIsDefined(name); |
| } |
| |
| void V0CustomElementRegistrationContext::SetV1( |
| const CustomElementRegistry* v1) { |
| registry_.SetV1(v1); |
| } |
| |
| void V0CustomElementRegistrationContext::Trace(Visitor* visitor) { |
| visitor->Trace(candidates_); |
| visitor->Trace(registry_); |
| } |
| |
| } // namespace blink |