Implement PaymentRequestUpdateEvent

third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.cpp

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "modules/payments/PaymentRequestUpdateEvent.h"
+
+#include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/ScriptFunction.h"
+#include "core/dom/DOMException.h"
+#include "core/dom/ExceptionCode.h"
+#include "modules/payments/PaymentUpdater.h"
+
+namespace blink {
+namespace {
+
+class UpdatePaymentDetailsFunction : public ScriptFunction {
+public:
+    static v8::Local<v8::Function> createFunction(ScriptState* scriptState, PaymentUpdater* updater)
+    {
+        UpdatePaymentDetailsFunction* self = new UpdatePaymentDetailsFunction(scriptState, updater);
+        return self->bindToV8Function();
+    }
+
+    DEFINE_INLINE_VIRTUAL_TRACE()
+    {
+        visitor->trace(m_updater);
+        ScriptFunction::trace(visitor);
+    }
+
+private:
+    UpdatePaymentDetailsFunction(ScriptState* scriptState, PaymentUpdater* updater)
+        : ScriptFunction(scriptState)
+        , m_updater(updater)
+    {
+        DCHECK(m_updater);
+    }
+
+    ScriptValue call(ScriptValue value) override
+    {
+        m_updater->onUpdatePaymentDetails(value);
+        return ScriptValue();
+    }
+
+    Member<PaymentUpdater> m_updater;
+};
+
+class UpdatePaymentDetailsErrorFunction : public ScriptFunction {
+public:
+    static v8::Local<v8::Function> createFunction(ScriptState* scriptState, PaymentUpdater* updater)
+    {
+        UpdatePaymentDetailsErrorFunction* self = new UpdatePaymentDetailsErrorFunction(scriptState, updater);
+        return self->bindToV8Function();
+    }
+
+    DEFINE_INLINE_VIRTUAL_TRACE()
+    {
+        visitor->trace(m_updater);
+        ScriptFunction::trace(visitor);
+    }
+
+private:
+    UpdatePaymentDetailsErrorFunction(ScriptState* scriptState, PaymentUpdater* updater)
+        : ScriptFunction(scriptState)
+        , m_updater(updater)
+    {
+        DCHECK(m_updater);
+    }
+
+    ScriptValue call(ScriptValue value) override
+    {
+        m_updater->onUpdatePaymentDetailsFailure(value);
+        return ScriptValue();
+    }
+
+    Member<PaymentUpdater> m_updater;
+};
+
+} // namespace
+
+PaymentRequestUpdateEvent::~PaymentRequestUpdateEvent()
+{
+}
+
+PaymentRequestUpdateEvent* PaymentRequestUpdateEvent::create()
+{
+    return new PaymentRequestUpdateEvent();
+}
+
+PaymentRequestUpdateEvent* PaymentRequestUpdateEvent::create(const AtomicString& type, const PaymentRequestUpdateEventInit& init)
+{
+    return new PaymentRequestUpdateEvent(type, init);
+}
+
+void PaymentRequestUpdateEvent::setPaymentDetailsUpdater(PaymentUpdater* updater)
+{
+    m_updater = updater;
+}
+
+void PaymentRequestUpdateEvent::updateWith(ScriptState* scriptState, ScriptPromise promise, ExceptionState& exceptionState)
+{
+    if (!m_updater)
+        return;
+
+    if (!isBeingDispatched()) {
+        exceptionState.throwDOMException(InvalidStateError, "Cannot update details when the event is not being dispatched");
+        return;
+    }
+
+    if (m_waitForUpdate) {
+        exceptionState.throwDOMException(InvalidStateError, "Cannot update details twice");
+        return;
+    }
+
+    stopImmediatePropagation();
+    m_waitForUpdate = true;
+
+    promise.then(UpdatePaymentDetailsFunction::createFunction(scriptState, m_updater),
+        UpdatePaymentDetailsErrorFunction::createFunction(scriptState, m_updater));
+}
+
+DEFINE_TRACE(PaymentRequestUpdateEvent)
+{
+    visitor->trace(m_updater);
+    Event::trace(visitor);
+}
+
+PaymentRequestUpdateEvent::PaymentRequestUpdateEvent()
+    : m_waitForUpdate(false)
+{
+}
+
+PaymentRequestUpdateEvent::PaymentRequestUpdateEvent(const AtomicString& type, const PaymentRequestUpdateEventInit& init)
+    : Event(type, init)
+    , m_waitForUpdate(false)
+{
+}
+
+} // namespace blink