1 files changed, 170 insertions, 0 deletions
diff --git a/src/haptic.cpp b/src/haptic.cpp
new file mode 100644
index 0000000..54a7d49
--- /dev/null
+++ b/src/haptic.cpp
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2014 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *   Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#include <notifications/dbus-shared.h>
+#include <notifications/haptic.h>
+
+#include <gio/gio.h>
+
+#include <numeric>
+#include <vector>
+
+namespace unity {
+namespace indicator {
+namespace notifications {
+
+/***
+****
+***/
+
+class Haptic::Impl
+{
+public:
+
+    Impl(const Mode& mode):
+        m_mode(mode),
+        m_cancellable(g_cancellable_new())
+    {
+        g_bus_get (G_BUS_TYPE_SESSION, m_cancellable, on_bus_ready, this);
+    }
+
+    ~Impl()
+    {
+        if (m_tag)
+            g_source_remove(m_tag);
+
+        g_cancellable_cancel (m_cancellable);
+        g_object_unref (m_cancellable);
+
+        g_clear_object (&m_bus);
+    }
+
+private:
+
+    static void on_bus_ready (GObject*, GAsyncResult* res, gpointer gself)
+    {
+        GError * error;
+        GDBusConnection * bus;
+
+        error = nullptr;
+        bus = g_bus_get_finish (res, &error);
+        if (error != nullptr)
+        {
+            if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+                g_warning ("Unable to get bus: %s", error->message);
+
+            g_error_free (error);
+        }
+        else if (bus != nullptr)
+        {
+            auto self = static_cast<Impl*>(gself);
+
+            self->m_bus = G_DBUS_CONNECTION (g_object_ref (bus));
+            self->start_vibrating();
+
+            g_object_unref (bus);
+        }
+    }
+
+    void start_vibrating()
+    {
+        g_return_if_fail (m_tag == 0);
+
+        switch (m_mode)
+        {
+            case MODE_PULSE: // the only mode currently supported... :)
+
+                // one second on, one second off.
+                m_pattern = std::vector<uint32_t>({1000u, 1000u});
+                break;
+        }
+
+        // Set up a loop to keep repeating the pattern
+        auto msec = std::accumulate(m_pattern.begin(), m_pattern.end(), 0u);
+        m_tag = g_timeout_add(msec, call_vibrate_pattern_static, this);
+        call_vibrate_pattern();
+    }
+
+    static gboolean call_vibrate_pattern_static (gpointer gself)
+    {
+        static_cast<Impl*>(gself)->call_vibrate_pattern();
+        return G_SOURCE_CONTINUE;
+    }
+
+    void call_vibrate_pattern()
+    {
+        // build the vibrate pattern
+        GVariantBuilder builder;
+        g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
+        for (const auto& msec : m_pattern)
+            g_variant_builder_add_value (&builder, g_variant_new_uint32(msec));
+        auto pattern_array = g_variant_builder_end (&builder);
+
+        /* Use a repeat_count of 1 here because we handle looping ourselves.
+           NB: VibratePattern could do it for us, but doesn't let us cancel
+           a running loop -- we could keep vibrating even after "this" was
+           destructed */
+        auto repeat_count = g_variant_new_uint32 (1u);
+ 
+        g_variant_builder_init (&builder, G_VARIANT_TYPE_TUPLE);
+        g_variant_builder_add_value (&builder, pattern_array);
+        g_variant_builder_add_value (&builder, repeat_count);
+        auto vibrate_pattern_args = g_variant_builder_end (&builder);
+
+        g_dbus_connection_call (m_bus,
+                                BUS_HAPTIC_NAME,
+                                BUS_HAPTIC_PATH,
+                                BUS_HAPTIC_INTERFACE,
+                                "VibratePattern",
+                                vibrate_pattern_args,
+                                nullptr,
+                                G_DBUS_CALL_FLAGS_NONE,
+                                -1,
+                                m_cancellable,
+                                nullptr,
+                                nullptr);
+    }
+
+    const Mode m_mode;
+    GCancellable * m_cancellable = nullptr;
+    GDBusConnection * m_bus = nullptr;
+    std::vector<uint32_t> m_pattern;
+    guint m_tag = 0;
+};
+
+/***
+****
+***/
+
+Haptic::Haptic(const Mode& mode):
+    impl(new Impl (mode))
+{
+}
+
+Haptic::~Haptic()
+{
+}
+
+/***
+****
+***/
+
+} // namespace datetime
+} // namespace indicator
+} // namespace unity