Show/hide HTML5 video control properly according to the touch event

Due to the webkit merge, some code of handling touch and control is gone.
Now basically add this functionality back.
Refer to the original CL : c/101875

bug:5137664
Change-Id: I951c88cf8fa86061a13465f966fb291706104d8f

2 files changed, 24 insertions, 2 deletions

diff --git a/Source/WebCore/html/HTMLMediaElement.cpp b/Source/WebCore/html/HTMLMediaElement.cpp
index a9f025f..93bd09e 100644
--- a/Source/WebCore/html/HTMLMediaElement.cpp
+++ b/Source/WebCore/html/HTMLMediaElement.cpp
@@ -79,6 +79,11 @@
 #include "Widget.h"
 #endif
 
+#if PLATFORM(ANDROID)
+// For every touch, show the media control for 4 seconds.
+#define TOUCH_DELAY 4
+#endif
+
 using namespace std;
 
 namespace WebCore {
@@ -171,6 +176,9 @@ HTMLMediaElement::HTMLMediaElement(const QualifiedName& tagName, Document* docum
     , m_dispatchingCanPlayEvent(false)
     , m_loadInitiatedByUserGesture(false)
     , m_completelyLoaded(false)
+#if PLATFORM(ANDROID)
+    , m_lastTouch(0)
+#endif
 {
     LOG(Media, "HTMLMediaElement::HTMLMediaElement");
     document->registerForDocumentActivationCallbacks(this);
@@ -1626,8 +1634,13 @@ void HTMLMediaElement::playbackProgressTimerFired(Timer<HTMLMediaElement>*)
 
     scheduleTimeupdateEvent(true);
     if (hasMediaControls()) {
-        if (!m_mouseOver && controls() && hasVideo())
+
+        if (!m_mouseOver && controls() && hasVideo()) {
+#if PLATFORM(ANDROID)
+            if (WTF::currentTime() - m_lastTouch > TOUCH_DELAY)
+#endif
             mediaControls()->makeTransparent();
+        }
         mediaControls()->playbackProgressed();
     }
     // FIXME: deal with cue ranges here
@@ -2373,8 +2386,13 @@ void HTMLMediaElement::defaultEventHandler(Event* event)
     }
 
 #if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
-    if (event->isTouchEvent())
+    if (event->isTouchEvent()) {
         m_mouseOver = !(event->type() == eventNames().touchendEvent || event->type() == eventNames().touchcancelEvent);
+        if (m_mouseOver && hasMediaControls() && controls() && !canPlay()) {
+            m_lastTouch = WTF::currentTime();
+            mediaControls()->makeOpaque();
+        }
+    }
 #endif
 
     HTMLElement::defaultEventHandler(event);
diff --git a/Source/WebCore/html/HTMLMediaElement.h b/Source/WebCore/html/HTMLMediaElement.h
index 604cdf8..987cf87 100644
--- a/Source/WebCore/html/HTMLMediaElement.h
+++ b/Source/WebCore/html/HTMLMediaElement.h
@@ -417,6 +417,10 @@ private:
     bool m_dispatchingCanPlayEvent : 1;
     bool m_loadInitiatedByUserGesture : 1;
     bool m_completelyLoaded : 1;
+
+#if PLATFORM(ANDROID)
+    double m_lastTouch;
+#endif
 };
 
 } //namespace