1 files changed, 88 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/WebProcessLifetimeTracker.cpp b/Source/WebKit2/UIProcess/WebProcessLifetimeTracker.cpp
new file mode 100644
index 000000000..b080cc81c
--- /dev/null
+++ b/Source/WebKit2/UIProcess/WebProcessLifetimeTracker.cpp
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+/*
+ * Copyright (C) 2015 Apple 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "WebProcessLifetimeTracker.h"
+
+#include "WebProcessLifetimeObserver.h"
+#include "WebProcessProxy.h"
+
+namespace WebKit {
+
+WebProcessLifetimeTracker::WebProcessLifetimeTracker(WebPageProxy& webPageProxy)
+    : m_webPageProxy(webPageProxy)
+{
+}
+
+WebProcessLifetimeTracker::~WebProcessLifetimeTracker()
+{
+}
+
+void WebProcessLifetimeTracker::addObserver(WebProcessLifetimeObserver& observer)
+{
+    ASSERT(!m_observers.contains(&observer));
+
+    m_observers.add(&observer);
+
+    observer.webPageWasAdded(m_webPageProxy);
+
+    if (processIsRunning())
+        observer.addWebPage(m_webPageProxy);
+}
+
+void WebProcessLifetimeTracker::connectionWillOpen(IPC::Connection&)
+{
+    ASSERT(processIsRunning());
+
+    for (auto& observer : m_observers)
+        observer->addWebPage(m_webPageProxy);
+}
+
+void WebProcessLifetimeTracker::webProcessWillShutDown()
+{
+    ASSERT(processIsRunning());
+
+    for (auto& observer : m_observers)
+        observer->removeWebPage(m_webPageProxy);
+}
+
+void WebProcessLifetimeTracker::pageWasInvalidated()
+{
+    if (!processIsRunning())
+        return;
+
+    for (auto& observer : m_observers) {
+        observer->removeWebPage(m_webPageProxy);
+
+        observer->webPageWasRemoved(m_webPageProxy);
+    }
+}
+
+bool WebProcessLifetimeTracker::processIsRunning()
+{
+    return m_webPageProxy.process().state() == WebProcessProxy::State::Running;
+}
+
+}