2 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "keyinput-focus-manager-impl.h"
22 #include <cstring> // for strcmp
23 #include <dali/public-api/actors/layer.h>
24 #include <dali-toolkit/public-api/controls/control-impl.h>
25 #include <dali/integration-api/debug.h>
26 #include <dali/integration-api/adaptor-framework/adaptor.h>
27 #include <dali/integration-api/adaptor-framework/scene-holder.h>
43 const char* const SIGNAL_KEY_INPUT_FOCUS_CHANGED = "keyInputFocusChanged";
47 KeyInputFocusManager::KeyInputFocusManager()
48 : mSlotDelegate( this ),
49 mCurrentFocusControl()
51 // Retrieve all the existing widnows
52 Dali::SceneHolderList sceneHolders = Adaptor::Get().GetSceneHolders();
53 for( auto iter = sceneHolders.begin(); iter != sceneHolders.end(); ++iter )
55 ( *iter ).KeyEventGeneratedSignal().Connect( mSlotDelegate, &KeyInputFocusManager::OnKeyEvent );
58 // Get notified when any new scene holder is created afterwards
59 Adaptor::Get().WindowCreatedSignal().Connect( mSlotDelegate, &KeyInputFocusManager::OnSceneHolderCreated );
62 KeyInputFocusManager::~KeyInputFocusManager()
66 void KeyInputFocusManager::OnSceneHolderCreated( Dali::Integration::SceneHolder& sceneHolder )
68 sceneHolder.KeyEventGeneratedSignal().Connect( mSlotDelegate, &KeyInputFocusManager::OnKeyEvent );
71 void KeyInputFocusManager::SetFocus( Toolkit::Control control )
79 if( control == mCurrentFocusControl )
81 // Control already has focus
85 control.OffSceneSignal().Connect( mSlotDelegate, &KeyInputFocusManager::OnFocusControlSceneDisconnection );
87 Dali::Toolkit::Control previousFocusControl = GetCurrentFocusControl();
88 if( previousFocusControl )
90 // Notify the control that it has lost key input focus
91 GetImplementation( previousFocusControl ).OnKeyInputFocusLost();
94 // Set control to currentFocusControl
95 mCurrentFocusControl = control;
97 // Tell the new actor that it has gained focus.
98 GetImplementation( control ).OnKeyInputFocusGained();
100 // Emit the signal to inform focus change to the application.
101 if ( !mKeyInputFocusChangedSignal.Empty() )
103 mKeyInputFocusChangedSignal.Emit( control, previousFocusControl );
107 void KeyInputFocusManager::RemoveFocus( Toolkit::Control control )
109 if( control == mCurrentFocusControl )
111 control.OffSceneSignal().Disconnect( mSlotDelegate, &KeyInputFocusManager::OnFocusControlSceneDisconnection );
113 // Notify the control that it has lost key input focus
114 GetImplementation( control ).OnKeyInputFocusLost();
116 mCurrentFocusControl.Reset();
120 Toolkit::Control KeyInputFocusManager::GetCurrentFocusControl() const
122 return mCurrentFocusControl;
125 Toolkit::KeyInputFocusManager::KeyInputFocusChangedSignalType& KeyInputFocusManager::KeyInputFocusChangedSignal()
127 return mKeyInputFocusChangedSignal;
130 bool KeyInputFocusManager::OnKeyEvent( const KeyEvent& event )
132 bool consumed = false;
134 Toolkit::Control control = GetCurrentFocusControl();
137 // Notify the control about the key event
138 consumed = EmitKeyEventSignal( control, event );
144 bool KeyInputFocusManager::EmitKeyEventSignal( Toolkit::Control control, const KeyEvent& event )
146 bool consumed = false;
150 consumed = GetImplementation( control ).EmitKeyEventSignal( event );
152 // if control doesn't consume KeyEvent, give KeyEvent to its parent.
155 Toolkit::Control parent = Toolkit::Control::DownCast( control.GetParent() );
159 consumed = EmitKeyEventSignal( parent, event );
167 void KeyInputFocusManager::OnFocusControlSceneDisconnection( Dali::Actor actor )
169 RemoveFocus( Dali::Toolkit::Control::DownCast( actor ) );
173 bool KeyInputFocusManager::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
175 bool connected( true );
176 KeyInputFocusManager* manager = dynamic_cast<KeyInputFocusManager*>( object );
180 if( 0 == strcmp( signalName.c_str(), SIGNAL_KEY_INPUT_FOCUS_CHANGED ) )
182 manager->KeyInputFocusChangedSignal().Connect( tracker, functor );
186 // signalName does not match any signal
194 } // namespace Internal
196 } // namespace Toolkit