1 files changed, 140 insertions, 0 deletions
diff --git a/Source/WebKit2/WebProcess/Gamepad/WebGamepadProvider.cpp b/Source/WebKit2/WebProcess/Gamepad/WebGamepadProvider.cpp
new file mode 100644
index 000000000..73262864f
--- /dev/null
+++ b/Source/WebKit2/WebProcess/Gamepad/WebGamepadProvider.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2016 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 "WebGamepadProvider.h"
+
+#if ENABLE(GAMEPAD)
+
+#include "GamepadData.h"
+#include "WebGamepad.h"
+#include "WebProcess.h"
+#include "WebProcessPoolMessages.h"
+#include <WebCore/GamepadProviderClient.h>
+#include <wtf/NeverDestroyed.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+WebGamepadProvider& WebGamepadProvider::singleton()
+{
+    static NeverDestroyed<WebGamepadProvider> provider;
+    return provider;
+}
+
+WebGamepadProvider::WebGamepadProvider()
+{
+}
+
+WebGamepadProvider::~WebGamepadProvider()
+{
+}
+
+void WebGamepadProvider::setInitialGamepads(const Vector<GamepadData>& gamepadDatas)
+{
+    ASSERT(m_gamepads.isEmpty());
+
+    m_gamepads.resize(gamepadDatas.size());
+    m_rawGamepads.resize(gamepadDatas.size());
+    for (size_t i = 0; i < gamepadDatas.size(); ++i) {
+        if (gamepadDatas[i].isNull())
+            continue;
+
+        m_gamepads[i] = std::make_unique<WebGamepad>(gamepadDatas[i]);
+        m_rawGamepads[i] = m_gamepads[i].get();
+    }
+}
+
+void WebGamepadProvider::gamepadConnected(const GamepadData& gamepadData)
+{
+    if (m_gamepads.size() <= gamepadData.index()) {
+        m_gamepads.resize(gamepadData.index() + 1);
+        m_rawGamepads.resize(gamepadData.index() + 1);
+    }
+
+    ASSERT(!m_gamepads[gamepadData.index()]);
+
+    m_gamepads[gamepadData.index()] = std::make_unique<WebGamepad>(gamepadData);
+    m_rawGamepads[gamepadData.index()] = m_gamepads[gamepadData.index()].get();
+
+    for (auto* client : m_clients)
+        client->platformGamepadConnected(*m_gamepads[gamepadData.index()]);
+}
+
+void WebGamepadProvider::gamepadDisconnected(unsigned index)
+{
+    ASSERT(m_gamepads.size() > index);
+
+    std::unique_ptr<WebGamepad> disconnectedGamepad = WTFMove(m_gamepads[index]);
+    m_rawGamepads[index] = nullptr;
+
+    for (auto* client : m_clients)
+        client->platformGamepadDisconnected(*disconnectedGamepad);
+}
+
+void WebGamepadProvider::gamepadActivity(const Vector<GamepadData>& gamepadDatas, bool shouldMakeGamepadsVisible)
+{
+    ASSERT(m_gamepads.size() == gamepadDatas.size());
+
+    for (size_t i = 0; i < m_gamepads.size(); ++i) {
+        if (m_gamepads[i])
+            m_gamepads[i]->updateValues(gamepadDatas[i]);
+    }
+
+    for (auto* client : m_clients)
+        client->platformGamepadInputActivity(shouldMakeGamepadsVisible);
+}
+
+void WebGamepadProvider::startMonitoringGamepads(GamepadProviderClient& client)
+{
+    bool processHadGamepadClients = !m_clients.isEmpty();
+
+    ASSERT(!m_clients.contains(&client));
+    m_clients.add(&client);
+
+    if (!processHadGamepadClients)
+        WebProcess::singleton().send(Messages::WebProcessPool::StartedUsingGamepads(), 0);
+}
+
+void WebGamepadProvider::stopMonitoringGamepads(GamepadProviderClient& client)
+{
+    bool processHadGamepadClients = !m_clients.isEmpty();
+
+    ASSERT(m_clients.contains(&client));
+    m_clients.remove(&client);
+
+    if (processHadGamepadClients && m_clients.isEmpty())
+        WebProcess::singleton().send(Messages::WebProcessPool::StoppedUsingGamepads(), 0);
+}
+
+const Vector<PlatformGamepad*>& WebGamepadProvider::platformGamepads()
+{
+    return m_rawGamepads;
+}
+
+}
+
+#endif // ENABLE(GAMEPAD)