Set up Leap Motion plugin container

Author: ctrlaltdavid

interface/external/leapmotion/readme.txt

@@ -10,7 +10,7 @@ Interface has been tested with SDK versions:
 1. Copy the LeapSDK folders from the LeapDeveloperKit installation directory (Lib, Include) into the interface/externals/leapmotion folder.
    This readme.txt should be there as well.
 
-   The files neeeded in the folders are:
+   The files needed in the folders are:
 
    include/
    - Leap.h
@@ -21,13 +21,13 @@ Interface has been tested with SDK versions:
      x86/
      - Leap.dll
      - Leap.lib
-     - mscvcp120.dll (optional if you already have the Msdev 2012 SDK redistriuable installed)
-     - mscvcr120.dll (optional if you already have the Msdev 2012 SDK redistriuable installed)
+     - mscvcp120.dll (optional if you already have the Msdev 2012 SDK redistributable installed)
+     - mscvcr120.dll (optional if you already have the Msdev 2012 SDK redistributable installed)
    - lipLeap.dylib
      libc++/
      -libLeap.dylib
 
    You may optionally choose to copy the SDK folders to a location outside the repository (so you can re-use with different checkouts and different projects). 
    If so our CMake find module expects you to set the ENV variable 'HIFI_LIB_DIR' to a directory containing a subfolder 'leapmotion' that contains the 2 folders mentioned above (Include, Lib).
 
-2. Clear your build directory, run cmake and build, and you should be all set.
+2. Clear your build directory, run cmake and build, and you should be all set.

plugins/CMakeLists.txt

@@ -30,6 +30,8 @@ if (NOT SERVER_ONLY AND NOT ANDROID)
   add_subdirectory(${DIR})
   set(DIR "steamClient")
   add_subdirectory(${DIR})
+  set(DIR "hifiLeapMotion")
+  add_subdirectory(${DIR})
 endif()
 
 # server-side plugins

plugins/hifiLeapMotion/CMakeLists.txt

@@ -0,0 +1,16 @@
+#
+#  Created by David Rowe on 15 Jun 2017.
+#  Copyright 2017 High Fidelity, Inc.
+#
+#  Distributed under the Apache License, Version 2.0.
+#  See the accompanying file LICENSE or http:#www.apache.org/licenses/LICENSE-2.0.html
+#
+
+if (WIN32)
+    find_package(LEAPMOTION)
+    if (LEAPMOTION_FOUND) 
+        set(TARGET_NAME hifiLeapMotion)
+        setup_hifi_plugin(Script Qml Widgets)
+        link_hifi_libraries(shared controllers ui plugins input-plugins)
+    endif()
+endif()

plugins/hifiLeapMotion/src/LeapMotionPlugin.cpp

@@ -0,0 +1,25 @@
+//
+//  LeapMotionPlugin.cpp
+//
+//  Created by David Rowe on 15 Jun 2017.
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include "LeapMotionPlugin.h"
+
+const char* LeapMotionPlugin::NAME = "Leap Motion";
+
+void LeapMotionPlugin::pluginUpdate(float deltaTime, const controller::InputCalibrationData& inputCalibrationData) {
+    // TODO
+}
+
+controller::Input::NamedVector LeapMotionPlugin::InputDevice::getAvailableInputs() const {
+    static controller::Input::NamedVector availableInputs;
+
+    // TODO
+
+    return availableInputs;
+}

plugins/hifiLeapMotion/src/LeapMotionPlugin.h

@@ -0,0 +1,42 @@
+//
+//  LeapMotionPlugin.h
+//
+//  Created by David Rowe on 15 Jun 2017.
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#ifndef hifi_LeapMotionPlugin_h
+#define hifi_LeapMotionPlugin_h
+
+#include <controllers/InputDevice.h>
+#include <plugins/InputPlugin.h>
+
+class LeapMotionPlugin : public InputPlugin {
+    Q_OBJECT
+
+public:
+    virtual const QString getName() const override { return NAME; }
+
+    virtual void pluginFocusOutEvent() override { _inputDevice->focusOutEvent(); }
+    virtual void pluginUpdate(float deltaTime, const controller::InputCalibrationData& inputCalibrationData) override;
+
+protected:
+    static const char* NAME;
+
+    class InputDevice : public controller::InputDevice {
+    public:
+        friend class LeapMotionPlugin;
+
+        InputDevice() : controller::InputDevice("Leap Motion") {}
+
+        // Device functions
+        virtual controller::Input::NamedVector getAvailableInputs() const override;
+    };
+
+    std::shared_ptr<InputDevice> _inputDevice{ std::make_shared<InputDevice>() };
+};
+
+#endif // hifi_LeapMotionPlugin_h

plugins/hifiLeapMotion/src/LeapMotionProvider.cpp

@@ -0,0 +1,51 @@
+//
+//  LeapMotionProvider.cpp
+//
+//  Created by David Rowe on 15 Jun 2017.
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include <mutex>
+
+#include <QtCore/QObject>
+#include <QtCore/QtPlugin>
+#include <QtCore/QStringList>
+
+#include <plugins/RuntimePlugin.h>
+#include <plugins/InputPlugin.h>
+
+#include "LeapMotionPlugin.h"
+
+class LeapMotionProvider : public QObject, public InputProvider
+{
+    Q_OBJECT
+        Q_PLUGIN_METADATA(IID InputProvider_iid FILE "plugin.json")
+        Q_INTERFACES(InputProvider)
+
+public:
+    LeapMotionProvider(QObject* parent = nullptr) : QObject(parent) {}
+    virtual ~LeapMotionProvider() {}
+
+    virtual InputPluginList getInputPlugins() override {
+        static std::once_flag once;
+        std::call_once(once, [&] {
+            InputPluginPointer plugin(new LeapMotionPlugin());
+            if (plugin->isSupported()) {
+                _inputPlugins.push_back(plugin);
+            }
+        });
+        return _inputPlugins;
+    }
+
+    virtual void destroyInputPlugins() override {
+        _inputPlugins.clear();
+    }
+
+private:
+    InputPluginList _inputPlugins;
+};
+
+#include "LeapMotionProvider.moc"

plugins/hifiLeapMotion/src/plugin.json

@@ -0,0 +1 @@
+{"name":"Leap Motion"}