diff options
Diffstat (limited to 'chromium/third_party/blink/renderer/bindings/core/v8/v8_v0_custom_element_lifecycle_callbacks.cc')
| -rw-r--r-- | chromium/third_party/blink/renderer/bindings/core/v8/v8_v0_custom_element_lifecycle_callbacks.cc | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/chromium/third_party/blink/renderer/bindings/core/v8/v8_v0_custom_element_lifecycle_callbacks.cc b/chromium/third_party/blink/renderer/bindings/core/v8/v8_v0_custom_element_lifecycle_callbacks.cc deleted file mode 100644 index fb9ec7b35ca..00000000000 --- a/chromium/third_party/blink/renderer/bindings/core/v8/v8_v0_custom_element_lifecycle_callbacks.cc +++ /dev/null @@ -1,248 +0,0 @@ -/* - * 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/bindings/core/v8/v8_v0_custom_element_lifecycle_callbacks.h" - -#include <memory> -#include "third_party/blink/renderer/bindings/core/v8/script_controller.h" -#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h" -#include "third_party/blink/renderer/bindings/core/v8/v8_element.h" -#include "third_party/blink/renderer/core/execution_context/execution_context.h" -#include "third_party/blink/renderer/platform/bindings/dom_data_store.h" -#include "third_party/blink/renderer/platform/bindings/v0_custom_element_binding.h" -#include "third_party/blink/renderer/platform/bindings/v8_per_context_data.h" -#include "third_party/blink/renderer/platform/bindings/v8_private_property.h" - -namespace blink { - -#define CALLBACK_LIST(V) \ - V(created, CreatedCallback) \ - V(attached, AttachedCallback) \ - V(detached, DetachedCallback) \ - V(attribute_changed, AttributeChangedCallback) - -static V0CustomElementLifecycleCallbacks::CallbackType FlagSet( - v8::MaybeLocal<v8::Function> attached, - v8::MaybeLocal<v8::Function> detached, - v8::MaybeLocal<v8::Function> attribute_changed) { - // V8 Custom Elements always run created to swizzle prototypes. - int flags = V0CustomElementLifecycleCallbacks::kCreatedCallback; - - if (!attached.IsEmpty()) - flags |= V0CustomElementLifecycleCallbacks::kAttachedCallback; - - if (!detached.IsEmpty()) - flags |= V0CustomElementLifecycleCallbacks::kDetachedCallback; - - if (!attribute_changed.IsEmpty()) - flags |= V0CustomElementLifecycleCallbacks::kAttributeChangedCallback; - - return V0CustomElementLifecycleCallbacks::CallbackType(flags); -} - -V8V0CustomElementLifecycleCallbacks::V8V0CustomElementLifecycleCallbacks( - ScriptState* script_state, - v8::Local<v8::Object> prototype, - v8::MaybeLocal<v8::Function> created, - v8::MaybeLocal<v8::Function> attached, - v8::MaybeLocal<v8::Function> detached, - v8::MaybeLocal<v8::Function> attribute_changed) - : V0CustomElementLifecycleCallbacks( - FlagSet(attached, detached, attribute_changed)), - script_state_(script_state), - prototype_(script_state->GetIsolate(), prototype){ - v8::Isolate* isolate = script_state->GetIsolate(); - v8::Local<v8::Function> function; - -// A given object can only be used as a Custom Element prototype -// once; see customElementIsInterfacePrototypeObject -#define SET_PRIVATE_PROPERTY(Maybe, Name) \ - static const V8PrivateProperty::SymbolKey kPrivateProperty##Name; \ - V8PrivateProperty::Symbol symbol##Name = \ - V8PrivateProperty::GetSymbol(isolate, kPrivateProperty##Name); \ - DCHECK(!symbol##Name.HasValue(prototype)); \ - { \ - if (Maybe.ToLocal(&function)) \ - symbol##Name.Set(prototype, function); \ - } - - CALLBACK_LIST(SET_PRIVATE_PROPERTY) -#undef SET_PRIVATE_PROPERTY - -#define SET_FIELD(maybe, ignored) \ - if (maybe.ToLocal(&function)) \ - maybe##_.Set(isolate, function); - - CALLBACK_LIST(SET_FIELD) -#undef SET_FIELD -} - -V8PerContextData* V8V0CustomElementLifecycleCallbacks::CreationContextData() { - if (!script_state_->ContextIsValid()) - return nullptr; - - v8::Local<v8::Context> context = script_state_->GetContext(); - if (context.IsEmpty()) - return nullptr; - - return V8PerContextData::From(context); -} - -V8V0CustomElementLifecycleCallbacks::~V8V0CustomElementLifecycleCallbacks() = - default; - -bool V8V0CustomElementLifecycleCallbacks::SetBinding( - std::unique_ptr<V0CustomElementBinding> binding) { - V8PerContextData* per_context_data = CreationContextData(); - if (!per_context_data) - return false; - - // The context is responsible for keeping the prototype - // alive. This in turn keeps callbacks alive through hidden - // references; see CALLBACK_LIST(SET_HIDDEN_VALUE). - per_context_data->AddCustomElementBinding(std::move(binding)); - return true; -} - -void V8V0CustomElementLifecycleCallbacks::Created(Element* element) { - // FIXME: callbacks while paused should be queued up for execution to - // continue then be delivered in order rather than delivered immediately. - // Bug 329665 tracks similar behavior for other synchronous events. - if (!script_state_->ContextIsValid()) - return; - - element->SetV0CustomElementState(Element::kV0Upgraded); - - ScriptState::Scope scope(script_state_); - v8::Isolate* isolate = script_state_->GetIsolate(); - v8::Local<v8::Context> context = script_state_->GetContext(); - v8::Local<v8::Value> receiver_value = - ToV8(element, context->Global(), isolate); - if (receiver_value.IsEmpty()) - return; - v8::Local<v8::Object> receiver = receiver_value.As<v8::Object>(); - - // Swizzle the prototype of the wrapper. - v8::Local<v8::Object> prototype = prototype_.NewLocal(isolate); - bool set_prototype; - if (prototype.IsEmpty() || - !receiver->SetPrototype(context, prototype).To(&set_prototype) || - !set_prototype) { - return; - } - - v8::Local<v8::Function> callback = created_.NewLocal(isolate); - if (callback.IsEmpty()) - return; - - v8::TryCatch exception_catcher(isolate); - exception_catcher.SetVerbose(true); - V8ScriptRunner::CallFunction(callback, ExecutionContext::From(script_state_), - receiver, 0, nullptr, isolate); -} - -void V8V0CustomElementLifecycleCallbacks::Attached(Element* element) { - Call(attached_, element); -} - -void V8V0CustomElementLifecycleCallbacks::Detached(Element* element) { - Call(detached_, element); -} - -void V8V0CustomElementLifecycleCallbacks::AttributeChanged( - Element* element, - const AtomicString& name, - const AtomicString& old_value, - const AtomicString& new_value) { - // FIXME: callbacks while paused should be queued up for execution to - // continue then be delivered in order rather than delivered immediately. - // Bug 329665 tracks similar behavior for other synchronous events. - if (!script_state_->ContextIsValid()) - return; - ScriptState::Scope scope(script_state_); - v8::Isolate* isolate = script_state_->GetIsolate(); - v8::Local<v8::Context> context = script_state_->GetContext(); - v8::Local<v8::Value> receiver = ToV8(element, context->Global(), isolate); - if (receiver.IsEmpty()) - return; - - v8::Local<v8::Function> callback = attribute_changed_.NewLocal(isolate); - if (callback.IsEmpty()) - return; - - v8::Local<v8::Value> argv[] = { - V8String(isolate, name), - old_value.IsNull() ? v8::Local<v8::Value>(v8::Null(isolate)) - : v8::Local<v8::Value>(V8String(isolate, old_value)), - new_value.IsNull() ? v8::Local<v8::Value>(v8::Null(isolate)) - : v8::Local<v8::Value>(V8String(isolate, new_value))}; - - v8::TryCatch exception_catcher(isolate); - exception_catcher.SetVerbose(true); - V8ScriptRunner::CallFunction(callback, ExecutionContext::From(script_state_), - receiver, base::size(argv), argv, isolate); -} - -void V8V0CustomElementLifecycleCallbacks::Call( - const TraceWrapperV8Reference<v8::Function>& callback_reference, - Element* element) { - // FIXME: callbacks while paused should be queued up for execution to - // continue then be delivered in order rather than delivered immediately. - // Bug 329665 tracks similar behavior for other synchronous events. - if (!script_state_->ContextIsValid()) - return; - ScriptState::Scope scope(script_state_); - v8::Isolate* isolate = script_state_->GetIsolate(); - v8::Local<v8::Context> context = script_state_->GetContext(); - v8::Local<v8::Function> callback = callback_reference.NewLocal(isolate); - if (callback.IsEmpty()) - return; - - v8::Local<v8::Value> receiver = ToV8(element, context->Global(), isolate); - if (receiver.IsEmpty()) - return; - - v8::TryCatch exception_catcher(isolate); - exception_catcher.SetVerbose(true); - V8ScriptRunner::CallFunction(callback, ExecutionContext::From(script_state_), - receiver, 0, nullptr, isolate); -} - -void V8V0CustomElementLifecycleCallbacks::Trace(Visitor* visitor) const { - visitor->Trace(script_state_); - visitor->Trace(prototype_); - visitor->Trace(created_); - visitor->Trace(attached_); - visitor->Trace(detached_); - visitor->Trace(attribute_changed_); - V0CustomElementLifecycleCallbacks::Trace(visitor); -} - -} // namespace blink |