Merge "Fix resource leaks in layouting." into devel/master

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / focus-manager / keyboard-focus-manager-impl.cpp

diff --git a/dali-toolkit/internal/focus-manager/keyboard-focus-manager-impl.cpp b/dali-toolkit/internal/focus-manager/keyboard-focus-manager-impl.cpp
index 5225c46..3653f5f 100644 (file)
--- a/dali-toolkit/internal/focus-manager/keyboard-focus-manager-impl.cpp
+++ b/dali-toolkit/internal/focus-manager/keyboard-focus-manager-impl.cpp
@@ -119,14 +119,17 @@ KeyboardFocusManager::KeyboardFocusManager()
   mFocusedActorEnterKeySignal(),
   mCurrentFocusActor(),
   mFocusIndicatorActor(),
-  mIsFocusIndicatorEnabled( -1 ),
+  mIsFocusIndicatorShown( -1 ),
   mFocusGroupLoopEnabled( false ),
   mIsWaitingKeyboardFocusChangeCommit( false ),
+  mClearFocusOnTouch( true ),
+  mEnableFocusIndicator( true ),
+  mAlwaysShowIndicator( true ),
   mFocusHistory(),
   mSlotDelegate( this ),
   mCustomAlgorithmInterface(NULL)
 {
-  // TODO: Get FocusIndicatorEnable constant from stylesheet to set mIsFocusIndicatorEnabled.
+  // TODO: Get FocusIndicatorEnable constant from stylesheet to set mIsFocusIndicatorShown.
   Stage::GetCurrent().KeyEventSignal().Connect( mSlotDelegate, &KeyboardFocusManager::OnKeyEvent);
   Stage::GetCurrent().TouchSignal().Connect( mSlotDelegate, &KeyboardFocusManager::OnTouch );
 }
@@ -141,7 +144,9 @@ void KeyboardFocusManager::GetConfigurationFromStyleManger()
     if( styleManager )
     {
       Property::Map config = Toolkit::DevelStyleManager::GetConfigurations( styleManager );
-      mIsFocusIndicatorEnabled = static_cast<int>(config["alwaysShowFocus"].Get<bool>());
+      mAlwaysShowIndicator = config["alwaysShowFocus"].Get<bool>();
+      mIsFocusIndicatorShown = static_cast<int>(mAlwaysShowIndicator);
+      mClearFocusOnTouch = mIsFocusIndicatorShown ? false : true;
     }
 }
 
@@ -149,7 +154,7 @@ bool KeyboardFocusManager::SetCurrentFocusActor( Actor actor )
 {
   DALI_ASSERT_DEBUG( !mIsWaitingKeyboardFocusChangeCommit && "Calling this function in the PreFocusChangeSignal callback?" );
 
-  if( mIsFocusIndicatorEnabled == -1 )
+  if( mIsFocusIndicatorShown == -1 )
   {
     GetConfigurationFromStyleManger();
   }
@@ -176,7 +181,7 @@ bool KeyboardFocusManager::DoSetCurrentFocusActor( Actor actor )
   // Check whether the actor is in the stage and is keyboard focusable.
   if( actor && actor.IsKeyboardFocusable() && actor.OnStage() )
   {
-    if( mIsFocusIndicatorEnabled )
+    if( mIsFocusIndicatorShown && mEnableFocusIndicator )
     {
       actor.Add( GetFocusIndicatorActor() );
     }
@@ -208,13 +213,13 @@ bool KeyboardFocusManager::DoSetCurrentFocusActor( Actor actor )
     }
 
     // Push Current Focused Actor to FocusHistory
-    mFocusHistory.PushBack( &actor.GetBaseObject() );
+    mFocusHistory.push_back( actor );
 
     // Delete first element before add new element when Stack is full.
-    if( mFocusHistory.Count() > MAX_HISTORY_AMOUNT )
+    if( mFocusHistory.size() > MAX_HISTORY_AMOUNT )
     {
-       FocusStackIterator beginPos = mFocusHistory.Begin();
-       mFocusHistory.Erase( beginPos );
+       FocusStackIterator beginPos = mFocusHistory.begin();
+       mFocusHistory.erase( beginPos );
     }
 
     DALI_LOG_INFO( gLogFilter, Debug::General, "[%s:%d] SUCCEED\n", __FUNCTION__, __LINE__);
@@ -249,28 +254,39 @@ Actor KeyboardFocusManager::GetCurrentFocusGroup()
 void KeyboardFocusManager::MoveFocusBackward()
 {
   // Find Pre Focused Actor when the list size is more than 1
-  if( mFocusHistory.Count() > 1 )
+  if( mFocusHistory.size() > 1 )
   {
     // Delete current focused actor in history
-    FocusStackIterator endPos = mFocusHistory.End();
-    endPos = mFocusHistory.Erase( --endPos );
+    mFocusHistory.pop_back();
 
-    // If pre-focused actors are not on stage, remove them in stack
-    while( !Dali::Actor::DownCast(BaseHandle(mFocusHistory[ mFocusHistory.Count() - 1 ])).OnStage() )
+    // If pre-focused actors are not on stage or deleted, remove them in stack
+    while( mFocusHistory.size() > 0 )
     {
-      endPos = mFocusHistory.Erase( --endPos );
-    }
-
-    // Get pre focused actor
-    BaseObject* object = mFocusHistory[ mFocusHistory.Count() - 1 ];
-    BaseHandle handle( object );
-    Actor preFocusedActor = Dali::Actor::DownCast( handle );
+      // Get pre focused actor
+      Actor target = mFocusHistory[ mFocusHistory.size() -1 ].GetHandle();
 
-    // Delete pre focused actor in history because it will pushed again by SetCurrentFocusActor()
-    mFocusHistory.Erase( --endPos );
+      // Impl of Actor is not null
+      if( target && target.OnStage() )
+      {
+        // Delete pre focused actor in history because it will pushed again by SetCurrentFocusActor()
+        mFocusHistory.pop_back();
+        SetCurrentFocusActor( target );
+        break;
+      }
+      else
+      {
+        // Target is empty handle or off stage. Erase from queue
+        mFocusHistory.pop_back();
+      }
+    }
 
-    SetCurrentFocusActor( preFocusedActor );
- }
+    // if there is no actor which can get focus, then push current focus actor in stack again
+    if( mFocusHistory.size() == 0 )
+    {
+      Actor currentFocusedActor = GetCurrentFocusActor();
+      mFocusHistory.push_back( currentFocusedActor );
+    }
+  }
 }
 
 bool KeyboardFocusManager::IsLayoutControl(Actor actor) const
@@ -541,7 +557,7 @@ void KeyboardFocusManager::ClearFocus()
   }
 
   mCurrentFocusActor.Reset();
-  mIsFocusIndicatorEnabled = 0;
+  mIsFocusIndicatorShown = static_cast<int>(mAlwaysShowIndicator);
 }
 
 void KeyboardFocusManager::SetFocusGroupLoop(bool enabled)
@@ -641,7 +657,7 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
 
   std::string keyName = event.keyPressedName;
 
-  if( mIsFocusIndicatorEnabled == -1 )
+  if( mIsFocusIndicatorShown == -1 )
   {
     GetConfigurationFromStyleManger();
   }
@@ -654,10 +670,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     {
       if(!isAccessibilityEnabled)
       {
-        if(!mIsFocusIndicatorEnabled)
+        if(!mIsFocusIndicatorShown)
         {
           // Show focus indicator
-          mIsFocusIndicatorEnabled = 1;
+          mIsFocusIndicatorShown = 1;
         }
         else
         {
@@ -677,10 +693,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     {
       if(!isAccessibilityEnabled)
       {
-        if(!mIsFocusIndicatorEnabled)
+        if(!mIsFocusIndicatorShown)
         {
           // Show focus indicator
-          mIsFocusIndicatorEnabled = 1;
+          mIsFocusIndicatorShown = 1;
         }
         else
         {
@@ -698,10 +714,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
     else if (keyName == "Up" && !isAccessibilityEnabled)
     {
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
       else
       {
@@ -713,10 +729,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
     else if (keyName == "Down" && !isAccessibilityEnabled)
     {
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
       else
       {
@@ -728,10 +744,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
     else if (keyName == "Prior" && !isAccessibilityEnabled)
     {
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
       else
       {
@@ -743,10 +759,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
     else if (keyName == "Next" && !isAccessibilityEnabled)
     {
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
       else
       {
@@ -758,10 +774,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
     else if (keyName == "Tab" && !isAccessibilityEnabled)
     {
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
       else
       {
@@ -774,10 +790,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
     else if (keyName == "space" && !isAccessibilityEnabled)
     {
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
 
       isFocusStartableKey = true;
@@ -785,10 +801,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     else if (keyName == "" && !isAccessibilityEnabled)
     {
       // Check the fake key event for evas-plugin case
-      if(!mIsFocusIndicatorEnabled)
+      if(!mIsFocusIndicatorShown)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
 
       isFocusStartableKey = true;
@@ -805,10 +821,10 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
   {
     if (keyName == "Return")
     {
-      if(!mIsFocusIndicatorEnabled && !isAccessibilityEnabled)
+      if(!mIsFocusIndicatorShown && !isAccessibilityEnabled)
       {
         // Show focus indicator
-        mIsFocusIndicatorEnabled = 1;
+        mIsFocusIndicatorShown = 1;
       }
       else
       {
@@ -833,13 +849,16 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
     }
   }
 
-  if(isFocusStartableKey && mIsFocusIndicatorEnabled && !isAccessibilityEnabled)
+  if(isFocusStartableKey && mIsFocusIndicatorShown && !isAccessibilityEnabled)
   {
     Actor actor = GetCurrentFocusActor();
     if( actor )
     {
-      // Make sure the focused actor is highlighted
-      actor.Add( GetFocusIndicatorActor() );
+      if( mEnableFocusIndicator )
+      {
+        // Make sure the focused actor is highlighted
+        actor.Add( GetFocusIndicatorActor() );
+      }
     }
     else
     {
@@ -852,9 +871,17 @@ void KeyboardFocusManager::OnKeyEvent(const KeyEvent& event)
 
 void KeyboardFocusManager::OnTouch(const TouchData& touch)
 {
+  // if mIsFocusIndicatorShown is -1, it means Configuration is not loaded.
+  // Try to load configuration.
+  if( mIsFocusIndicatorShown == -1 )
+  {
+    GetConfigurationFromStyleManger();
+  }
+
   // Clear the focus when user touch the screen.
   // We only do this on a Down event, otherwise the clear action may override a manually focused actor.
-  if( ( touch.GetPointCount() < 1 ) || ( touch.GetState( 0 ) == PointState::DOWN ) )
+  // If mClearFocusOnTouch is false, do not clear the focus even if user touch the screen.
+  if( (( touch.GetPointCount() < 1 ) || ( touch.GetState( 0 ) == PointState::DOWN )) && mClearFocusOnTouch )
   {
     ClearFocus();
   }
@@ -917,6 +944,21 @@ void KeyboardFocusManager::SetCustomAlgorithm(CustomAlgorithmInterface& interfac
   mCustomAlgorithmInterface = &interface;
 }
 
+void KeyboardFocusManager::EnableFocusIndicator(bool enable)
+{
+  if( !enable && mFocusIndicatorActor )
+  {
+    mFocusIndicatorActor.Unparent();
+  }
+
+  mEnableFocusIndicator = enable;
+}
+
+bool KeyboardFocusManager::IsFocusIndicatorEnabled() const
+{
+  return mEnableFocusIndicator;
+}
+
 } // namespace Internal
 
 } // namespace Toolkit