TizenRefApp-8359 [Gallery] Add parsing Hold gesture into TouchParser

- Added Tap and Hold gesture to the ToouchParser;
- Integrated Tap and Hold gesture into ImageGrid.

Change-Id: Ie7081a8cb5ccdd08a53e236cfcc58af4880e07a8

4 files changed, 57 insertions, 1 deletions

diff --git a/inc/view/ImageGrid.h b/inc/view/ImageGrid.h
index d251b86..9c7756c 100644
--- a/inc/view/ImageGrid.h
+++ b/inc/view/ImageGrid.h
@@ -34,7 +34,8 @@ namespace gallery {
 
 		enum ItemEvent {
 			ITEM_EVENT_CLICK,
-			ITEM_EVENT_DOUBLE_TAP
+			ITEM_EVENT_DOUBLE_TAP,
+			ITEM_EVENT_TAP_AND_HOLD
 		};
 
 		class Builder {
diff --git a/inc/view/TouchParser.h b/inc/view/TouchParser.h
index 98334e5..6551e3c 100644
--- a/inc/view/TouchParser.h
+++ b/inc/view/TouchParser.h
@@ -35,6 +35,7 @@ namespace gallery {
 	public:
 		void setTapHandler(TapHandler handler);
 		void setDoubleTapHandler(TapHandler handler);
+		void setTapAndHoldHandler(TapHandler handler);
 
 	private:
 		void onMouseDown(ucl::Widget &widget, void *eventInfo);
@@ -46,9 +47,15 @@ namespace gallery {
 		bool isFastTap(ucl::UInt curTime, int curX, int curY) const;
 		double calcDownDistance(int curX, int curY) const;
 
+		void restartHoldTimer();
+		void stopHoldTimer();
+		Eina_Bool onHoldTimer();
+
 	private:
 		TapHandler m_tapHandler;
 		TapHandler m_doubleTapHandler;
+		TapHandler m_tapAndHoldHandler;
+		Ecore_Timer *m_holdTimer;
 		ucl::UInt m_downTime;
 		int m_downX;
 		int m_downY;
diff --git a/src/view/ImageGrid.cpp b/src/view/ImageGrid.cpp
index da5b427..adb8791 100644
--- a/src/view/ImageGrid.cpp
+++ b/src/view/ImageGrid.cpp
@@ -244,6 +244,8 @@ namespace gallery {
 				m_touchParser = makeShared<TouchParser>(m_btn);
 				m_touchParser->setDoubleTapHandler(
 						DELEGATE(Item::onDoubleTap, this));
+				m_touchParser->setTapAndHoldHandler(
+						DELEGATE(Item::onTapAndHold, this));
 			}
 
 			Widget &getWidget()
@@ -402,6 +404,14 @@ namespace gallery {
 				}
 			}
 
+			void onTapAndHold(const int x, const int y)
+			{
+				if (isRealized()) {
+					m_imageGrid.handleItemEvent(m_realizeIndex,
+							ITEM_EVENT_TAP_AND_HOLD, x, y);
+				}
+			}
+
 		private:
 			const ImageGrid &m_imageGrid;
 			StyledWidget m_btn;
diff --git a/src/view/TouchParser.cpp b/src/view/TouchParser.cpp
index ed1d600..119a7eb 100644
--- a/src/view/TouchParser.cpp
+++ b/src/view/TouchParser.cpp
@@ -23,6 +23,7 @@ namespace gallery { namespace { namespace impl {
 	constexpr auto TAP_MOVE_THRESHOLD = 30;
 	constexpr auto FAST_TAP_DISTANCE = 60;
 	constexpr auto FAST_TAP_DELAY_MS = 300;
+	constexpr auto TAP_AND_HOLD_DELAY_SEC = (500.0 / 1000.0);
 }}}
 
 namespace gallery {
@@ -31,6 +32,7 @@ namespace gallery {
 
 	TouchParser::TouchParser(RefCountObjBase &rc, Widget &eventSource) :
 		RefCountAware(&rc),
+		m_holdTimer(nullptr),
 		m_downTime(0),
 		m_downX(0),
 		m_downY(0),
@@ -50,6 +52,7 @@ namespace gallery {
 
 	TouchParser::~TouchParser()
 	{
+		stopHoldTimer();
 	}
 
 	void TouchParser::setTapHandler(TapHandler handler)
@@ -62,6 +65,11 @@ namespace gallery {
 		m_doubleTapHandler = handler;
 	}
 
+	void TouchParser::setTapAndHoldHandler(TapHandler handler)
+	{
+		m_tapAndHoldHandler = handler;
+	}
+
 	void TouchParser::onMouseDown(Widget &widget, void *eventInfo)
 	{
 		if (m_isMouseDown) {
@@ -73,6 +81,7 @@ namespace gallery {
 
 		if (!isFastTap(e->timestamp, e->canvas.x, e->canvas.y)) {
 			m_tapCounter = 0;
+			restartHoldTimer();
 		} else if (m_doubleTapHandler && (m_tapCounter == 1)) {
 			m_doubleTapHandler(m_downX, m_downY);
 		}
@@ -92,6 +101,7 @@ namespace gallery {
 
 		const auto e = static_cast<Evas_Event_Mouse_Up *>(eventInfo);
 
+		stopHoldTimer();
 		updateIsTapPossible(e->event_flags, e->canvas.x, e->canvas.y);
 
 		if (!m_isTapPossible) {
@@ -115,6 +125,10 @@ namespace gallery {
 		const auto e = static_cast<Evas_Event_Mouse_Move *>(eventInfo);
 
 		updateIsTapPossible(e->event_flags, e->cur.canvas.x, e->cur.canvas.y);
+
+		if (!m_isTapPossible) {
+			stopHoldTimer();
+		}
 	}
 
 	void TouchParser::updateIsTapPossible(const int flags,
@@ -144,4 +158,28 @@ namespace gallery {
 
 		return sqrt(1.0 * dx * dx + 1.0 * dy * dy);
 	}
+
+	void TouchParser::restartHoldTimer()
+	{
+		stopHoldTimer();
+		m_holdTimer = ecore_timer_add(impl::TAP_AND_HOLD_DELAY_SEC,
+				CALLBACK_A(TouchParser::onHoldTimer), this);
+	}
+
+	void TouchParser::stopHoldTimer()
+	{
+		if (m_holdTimer) {
+			ecore_timer_del(m_holdTimer);
+			m_holdTimer = nullptr;
+		}
+	}
+
+	Eina_Bool TouchParser::onHoldTimer()
+	{
+		m_holdTimer = nullptr;
+		if (m_tapAndHoldHandler) {
+			m_tapAndHoldHandler(m_downX, m_downY);
+		}
+		return ECORE_CALLBACK_CANCEL;
+	}
 }