From e68f9499fa018884784b6263a577602008036e01 Mon Sep 17 00:00:00 2001
From: Zach Fox <fox@highfidelity.io>
Date: Thu, 20 Jul 2017 16:51:00 -0700
Subject: [PATCH] Add hover/unhover handlers to context overlays

---
 interface/src/Application.cpp                 | 16 ++++++++++---
 .../ui/overlays/ContextOverlayInterface.cpp   | 23 ++++++++++++++++++-
 .../src/ui/overlays/ContextOverlayInterface.h |  2 ++
 3 files changed, 37 insertions(+), 4 deletions(-)

diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 7cf5037f57..699ddfcb2d 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -1348,9 +1348,19 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
     });
 
     connect(overlays,
-            SIGNAL(mousePressOnOverlay(const OverlayID&, const PointerEvent&)),
-            DependencyManager::get<ContextOverlayInterface>().data(),
-            SLOT(clickContextOverlay(const OverlayID&, const PointerEvent&)));
+        SIGNAL(mousePressOnOverlay(const OverlayID&, const PointerEvent&)),
+        DependencyManager::get<ContextOverlayInterface>().data(),
+        SLOT(clickContextOverlay(const OverlayID&, const PointerEvent&)));
+
+    connect(overlays,
+        SIGNAL(hoverEnterOverlay(const OverlayID&, const PointerEvent&)),
+        DependencyManager::get<ContextOverlayInterface>().data(),
+        SLOT(hoverEnterContextOverlay(const OverlayID&, const PointerEvent&)));
+
+    connect(overlays,
+        SIGNAL(hoverLeaveOverlay(const OverlayID&, const PointerEvent&)),
+        DependencyManager::get<ContextOverlayInterface>().data(),
+        SLOT(hoverLeaveContextOverlay(const OverlayID&, const PointerEvent&)));
 
     // Add periodic checks to send user activity data
     static int CHECK_NEARBY_AVATARS_INTERVAL_MS = 10000;
diff --git a/interface/src/ui/overlays/ContextOverlayInterface.cpp b/interface/src/ui/overlays/ContextOverlayInterface.cpp
index 50fcf50b90..78ca0d591c 100644
--- a/interface/src/ui/overlays/ContextOverlayInterface.cpp
+++ b/interface/src/ui/overlays/ContextOverlayInterface.cpp
@@ -69,7 +69,7 @@ bool ContextOverlayInterface::createOrDestroyContextOverlay(const EntityItemID&
             if (_contextOverlayID == UNKNOWN_OVERLAY_ID || !qApp->getOverlays().isAddedOverlay(_contextOverlayID)) {
                 _contextOverlay = std::make_shared<Image3DOverlay>();
                 _contextOverlay->setAlpha(0.85f);
-                _contextOverlay->setPulseMin(0.75f);
+                _contextOverlay->setPulseMin(0.6f);
                 _contextOverlay->setPulseMax(1.0f);
                 _contextOverlay->setColorPulse(1.0f);
                 _contextOverlay->setIgnoreRayIntersection(false);
@@ -130,6 +130,27 @@ void ContextOverlayInterface::clickContextOverlay(const OverlayID& overlayID, co
         destroyContextOverlay(_currentEntityWithContextOverlay, PointerEvent());
     }
 }
+
+void ContextOverlayInterface::hoverEnterContextOverlay(const OverlayID& overlayID, const PointerEvent& event) {
+    if (_contextOverlayID != UNKNOWN_OVERLAY_ID && _contextOverlay) {
+        qCDebug(context_overlay) << "Started hovering over Context Overlay. Overlay ID:" << overlayID;
+        _contextOverlay->setColor({ 0xFF, 0xFF, 0xFF });
+        _contextOverlay->setColorPulse(0.0f);
+        _contextOverlay->setPulsePeriod(0.0f);
+        _contextOverlay->setAlpha(1.0f);
+    }
+}
+
+void ContextOverlayInterface::hoverLeaveContextOverlay(const OverlayID& overlayID, const PointerEvent& event) {
+    if (_contextOverlayID != UNKNOWN_OVERLAY_ID && _contextOverlay) {
+        qCDebug(context_overlay) << "Stopped hovering over Context Overlay. Overlay ID:" << overlayID;
+        _contextOverlay->setColor({ 0xFF, 0xFF, 0xFF });
+        _contextOverlay->setColorPulse(1.0f);
+        _contextOverlay->setPulsePeriod(1.0f);
+        _contextOverlay->setAlpha(0.85f);
+    }
+}
+
 static const QString MARKETPLACE_BASE_URL = "http://metaverse.highfidelity.com/marketplace/items/";
 
 void ContextOverlayInterface::openMarketplace() {
diff --git a/interface/src/ui/overlays/ContextOverlayInterface.h b/interface/src/ui/overlays/ContextOverlayInterface.h
index 5ba70d7614..f06f85eab7 100644
--- a/interface/src/ui/overlays/ContextOverlayInterface.h
+++ b/interface/src/ui/overlays/ContextOverlayInterface.h
@@ -58,6 +58,8 @@ public slots:
     bool destroyContextOverlay(const EntityItemID& entityItemID, const PointerEvent& event);
     bool destroyContextOverlay(const EntityItemID& entityItemID);
     void clickContextOverlay(const OverlayID& overlayID, const PointerEvent& event);
+    void hoverEnterContextOverlay(const OverlayID& overlayID, const PointerEvent& event);
+    void hoverLeaveContextOverlay(const OverlayID& overlayID, const PointerEvent& event);
 
 private:
     bool _verboseLogging { true };