Revert of Remove support for legacy WebKit Notifications

Source/modules/notifications/NotificationBase.cpp

+/*
+ * 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 "modules/notifications/NotificationBase.h"
+
+#include "core/dom/Document.h"
+#include "core/page/WindowFocusAllowedIndicator.h"
+#include "modules/notifications/NotificationController.h"
+
+namespace WebCore {
+
+NotificationBase::NotificationBase(const String& title, ExecutionContext* context, NotificationClient* client)
+    : ActiveDOMObject(context)
+    , m_title(title)
+    , m_dir("auto")
+    , m_state(Idle)
+    , m_client(client)
+{
+    ASSERT(m_client);
+}
+
+NotificationBase::~NotificationBase()
+{
+}
+
+void NotificationBase::show()
+{
+    // prevent double-showing
+    if (m_state == Idle) {
+        if (!toDocument(executionContext())->page())
+            return;
+        if (NotificationController::from(toDocument(executionContext())->page())->client()->checkPermission(executionContext()) != NotificationClient::PermissionAllowed) {
+            dispatchErrorEvent();
+            return;
+        }
+        if (m_client->show(this)) {
+            m_state = Showing;
+        }
+    }
+}
+
+void NotificationBase::close()
+{
+    switch (m_state) {
+    case Idle:
+        break;
+    case Showing:
+        m_client->cancel(this);
+        break;
+    case Closed:
+        break;
+    }
+}
+
+void NotificationBase::dispatchShowEvent()
+{
+    dispatchEvent(Event::create(EventTypeNames::show));
+}
+
+void NotificationBase::dispatchClickEvent()
+{
+    UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
+    WindowFocusAllowedIndicator windowFocusAllowed;
+    dispatchEvent(Event::create(EventTypeNames::click));
+}
+
+void NotificationBase::dispatchErrorEvent()
+{
+    dispatchEvent(Event::create(EventTypeNames::error));
+}
+
+void NotificationBase::dispatchCloseEvent()
+{
+    dispatchEvent(Event::create(EventTypeNames::close));
+    m_state = Closed;
+}
+
+TextDirection NotificationBase::direction() const
+{
+    // FIXME: Resolve dir()=="auto" against the document.
+    return dir() == "rtl" ? RTL : LTR;
+}
+
+const String& NotificationBase::permissionString(NotificationClient::Permission permission)
+{
+    DEFINE_STATIC_LOCAL(const String, allowedPermission, ("granted"));
+    DEFINE_STATIC_LOCAL(const String, deniedPermission, ("denied"));
+    DEFINE_STATIC_LOCAL(const String, defaultPermission, ("default"));
+
+    switch (permission) {
+    case NotificationClient::PermissionAllowed:
+        return allowedPermission;
+    case NotificationClient::PermissionDenied:
+        return deniedPermission;
+    case NotificationClient::PermissionNotAllowed:
+        return defaultPermission;
+    }
+
+    ASSERT_NOT_REACHED();
+    return deniedPermission;
+}
+
+bool NotificationBase::dispatchEvent(PassRefPtr<Event> event)
+{
+    // Do not dispatch if the context is gone.
+    if (!executionContext())
+        return false;
+
+    return EventTarget::dispatchEvent(event);
+}
+
+void NotificationBase::stop()
+{
+    if (m_client)
+        m_client->notificationObjectDestroyed(this);
+
+    m_client = 0;
+    m_state = Closed;
+}
+
+bool NotificationBase::hasPendingActivity() const
+{
+    return m_state == Showing;
+}
+
+} // namespace WebCore