2 * Copyright (c) 2017 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 * @file text-field-example.cpp
20 * @brief Basic usage of TextField control
24 #include <dali-toolkit/dali-toolkit.h>
25 #include <dali-toolkit/devel-api/controls/buttons/button-devel.h>
26 #include <dali-toolkit/devel-api/controls/popup/popup.h>
28 #include <dali/public-api/events/touch-point.h>
31 #include "shared/multi-language-strings.h"
32 #include "shared/view.h"
35 using namespace Dali::Toolkit;
36 using namespace MultiLanguageStrings;
41 const char* const FOLDER_ICON_IMAGE = DEMO_IMAGE_DIR "folder_appicon_empty_bg.png";
42 const char* const FOLDER_OPEN_ICON_IMAGE = DEMO_IMAGE_DIR "folder_appicon_empty_open_bg.png";
44 const float BORDER_WIDTH = 4.0f;
46 } // unnamed namespace
49 * @brief The main class of the demo.
51 class TextFieldExample : public ConnectionTracker
55 TextFieldExample( Application& application )
56 : mApplication( application )
58 // Connect to the Application's Init signal
59 mApplication.InitSignal().Connect( this, &TextFieldExample::Create );
64 // Nothing to do here.
68 * One-time setup in response to Application InitSignal.
70 void Create( Application& application )
72 Stage stage = Stage::GetCurrent();
74 stage.SetBackgroundColor( Vector4( 0.04f, 0.345f, 0.392f, 1.0f ) );
75 stage.KeyEventSignal().Connect(this, &TextFieldExample::OnKeyEvent);
77 // Hide the indicator bar
78 application.GetWindow().ShowIndicator( Dali::Window::INVISIBLE );
80 mButton = CreateFolderButton();
81 mButton.ClickedSignal().Connect( this, &TextFieldExample::OnButtonClicked );
85 PushButton CreateFolderButton()
87 PushButton button = PushButton::New();
88 button.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, FOLDER_ICON_IMAGE );
89 button.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, FOLDER_OPEN_ICON_IMAGE );
90 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
94 bool OnButtonClicked( Toolkit::Button button )
96 Stage stage = Stage::GetCurrent();
97 Vector2 stageSize = stage.GetSize();
99 // Remove previously hidden pop-up
100 UnparentAndReset(mPopup);
102 // Launch a pop-up containing TextField
103 mField = CreateTextField( stageSize, mButtonLabel );
104 mPopup = CreatePopup();
105 mPopup.Add( mField );
106 mPopup.OutsideTouchedSignal().Connect( this, &TextFieldExample::OnPopupOutsideTouched );
108 mPopup.SetDisplayState( Popup::SHOWN );
113 TextField CreateTextField( const Vector2& stageSize, const std::string& text )
115 TextField field = TextField::New();
116 field.SetName("textField");
117 field.SetAnchorPoint( AnchorPoint::TOP_LEFT );
118 field.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
119 field.SetResizePolicy( ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT );
120 field.SetProperty( TextField::Property::TEXT, text );
121 field.SetProperty( TextField::Property::TEXT_COLOR, Vector4( 0.0f, 1.0f, 1.0f, 1.0f ) ); // CYAN
122 field.SetProperty( TextField::Property::PLACEHOLDER_TEXT, "Unnamed folder" );
123 field.SetProperty( TextField::Property::PLACEHOLDER_TEXT_FOCUSED, "Enter folder name." );
124 field.SetProperty( TextField::Property::DECORATION_BOUNDING_BOX, Rect<int>( BORDER_WIDTH, BORDER_WIDTH, stageSize.width - BORDER_WIDTH*2, stageSize.height - BORDER_WIDTH*2 ) );
131 Popup popup = Popup::New();
132 popup.SetParentOrigin( ParentOrigin::CENTER );
133 popup.SetAnchorPoint( AnchorPoint::CENTER );
134 popup.SetResizePolicy( ResizePolicy::FIT_TO_CHILDREN, Dimension::WIDTH );
135 popup.SetResizePolicy( ResizePolicy::FIT_TO_CHILDREN, Dimension::HEIGHT );
136 popup.TouchSignal().Connect( this, &TextFieldExample::OnPopupTouched );
141 void OnPopupOutsideTouched()
143 // Update the folder text
144 if( mButton && mField )
146 Property::Value text = mField.GetProperty( TextField::Property::TEXT );
147 mButtonLabel = text.Get< std::string >();
148 mButton.SetProperty( Toolkit::Button::Property::LABEL, mButtonLabel );
151 // Hide & discard the pop-up
154 mPopup.SetDisplayState( Popup::HIDDEN );
159 bool OnPopupTouched( Actor actor, const TouchData& event )
161 // End edit mode for TextField if parent Popup touched.
162 if(event.GetPointCount() > 0)
164 switch( event.GetState( 0 ) )
166 case PointState::DOWN:
168 // Update the folder text and lose focus for Key events
169 if( mButton && mField )
171 Property::Value text = mField.GetProperty( TextField::Property::TEXT );
172 mButtonLabel = text.Get< std::string >();
173 mButton.SetProperty( Toolkit::Button::Property::LABEL, mButtonLabel );
174 mField.ClearKeyInputFocus();
189 * Main key event handler
191 void OnKeyEvent(const KeyEvent& event)
193 if(event.state == KeyEvent::Down)
195 if( IsKey( event, DALI_KEY_ESCAPE) || IsKey( event, DALI_KEY_BACK ) )
204 Application& mApplication;
206 // This button launches a pop-up containing TextField
208 std::string mButtonLabel;
215 void RunTest( Application& application )
217 TextFieldExample test( application );
219 application.MainLoop();
222 /** Entry point for Linux & Tizen applications */
223 int DALI_EXPORT_API main( int argc, char **argv )
225 // DALI_DEMO_THEME_PATH not passed to Application so TextField example uses default Toolkit style sheet.
226 Application application = Application::New( &argc, &argv );
228 RunTest( application );