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 const Vector3 POPUP_SIZE_FACTOR_TO_PARENT = Vector3( 0.0, 0.25, 0.0 );
48 } // unnamed namespace
51 * @brief The main class of the demo.
53 class TextFieldExample : public ConnectionTracker
57 TextFieldExample( Application& application )
58 : mApplication( application )
60 // Connect to the Application's Init signal
61 mApplication.InitSignal().Connect( this, &TextFieldExample::Create );
66 // Nothing to do here.
70 * One-time setup in response to Application InitSignal.
72 void Create( Application& application )
74 Stage stage = Stage::GetCurrent();
76 stage.SetBackgroundColor( Vector4( 0.04f, 0.345f, 0.392f, 1.0f ) );
77 stage.KeyEventSignal().Connect(this, &TextFieldExample::OnKeyEvent);
79 // Hide the indicator bar
80 application.GetWindow().ShowIndicator( Dali::Window::INVISIBLE );
82 mButton = CreateFolderButton();
83 mButton.ClickedSignal().Connect( this, &TextFieldExample::OnButtonClicked );
87 PushButton CreateFolderButton()
89 PushButton button = PushButton::New();
90 button.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, FOLDER_ICON_IMAGE );
91 button.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, FOLDER_OPEN_ICON_IMAGE );
92 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
93 button.SetResizePolicy( ResizePolicy::FIXED, Dimension::ALL_DIMENSIONS );
94 ImageDimensions imageSize = ResourceImage::GetImageSize( FOLDER_ICON_IMAGE );
95 button.SetSize( imageSize.GetWidth(), imageSize.GetHeight() );
100 bool OnButtonClicked( Toolkit::Button button )
102 Stage stage = Stage::GetCurrent();
103 Vector2 stageSize = stage.GetSize();
105 // Remove previously hidden pop-up
106 UnparentAndReset(mPopup);
108 // Launch a pop-up containing TextField
109 mField = CreateTextField( stageSize, mButtonLabel );
110 mPopup = CreatePopup( stageSize.width * 0.8f );
111 mPopup.Add( mField );
112 mPopup.OutsideTouchedSignal().Connect( this, &TextFieldExample::OnPopupOutsideTouched );
114 mPopup.SetDisplayState( Popup::SHOWN );
119 TextField CreateTextField( const Vector2& stageSize, const std::string& text )
121 TextField field = TextField::New();
122 field.SetName("textField");
123 field.SetAnchorPoint( AnchorPoint::TOP_LEFT );
124 field.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
125 field.SetResizePolicy( ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT );
126 field.SetProperty( TextField::Property::TEXT, text );
127 field.SetProperty( TextField::Property::TEXT_COLOR, Vector4( 0.0f, 1.0f, 1.0f, 1.0f ) ); // CYAN
128 field.SetProperty( TextField::Property::PLACEHOLDER_TEXT, "Unnamed folder" );
129 field.SetProperty( TextField::Property::PLACEHOLDER_TEXT_FOCUSED, "Enter folder name." );
130 field.SetProperty( TextField::Property::DECORATION_BOUNDING_BOX, Rect<int>( BORDER_WIDTH, BORDER_WIDTH, stageSize.width - BORDER_WIDTH*2, stageSize.height - BORDER_WIDTH*2 ) );
135 Popup CreatePopup( float width )
137 Popup popup = Popup::New();
138 popup.SetParentOrigin( ParentOrigin::CENTER );
139 popup.SetAnchorPoint( AnchorPoint::CENTER );
140 popup.SetSize( width, 0.0f );
141 popup.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::HEIGHT );
142 popup.SetSizeModeFactor( POPUP_SIZE_FACTOR_TO_PARENT );
143 popup.TouchSignal().Connect( this, &TextFieldExample::OnPopupTouched );
148 void OnPopupOutsideTouched()
150 // Update the folder text
151 if( mButton && mField )
153 Property::Value text = mField.GetProperty( TextField::Property::TEXT );
154 mButtonLabel = text.Get< std::string >();
155 mButton.SetProperty( Toolkit::Button::Property::LABEL, mButtonLabel );
158 // Hide & discard the pop-up
161 mPopup.SetDisplayState( Popup::HIDDEN );
166 bool OnPopupTouched( Actor actor, const TouchData& event )
168 // End edit mode for TextField if parent Popup touched.
169 if(event.GetPointCount() > 0)
171 switch( event.GetState( 0 ) )
173 case PointState::DOWN:
175 // Update the folder text and lose focus for Key events
176 if( mButton && mField )
178 Property::Value text = mField.GetProperty( TextField::Property::TEXT );
179 mButtonLabel = text.Get< std::string >();
180 mButton.SetProperty( Toolkit::Button::Property::LABEL, mButtonLabel );
181 mField.ClearKeyInputFocus();
196 * Main key event handler
198 void OnKeyEvent(const KeyEvent& event)
200 if(event.state == KeyEvent::Down)
202 if( IsKey( event, DALI_KEY_ESCAPE) || IsKey( event, DALI_KEY_BACK ) )
211 Application& mApplication;
213 // This button launches a pop-up containing TextField
215 std::string mButtonLabel;
222 void RunTest( Application& application )
224 TextFieldExample test( application );
226 application.MainLoop();
229 /** Entry point for Linux & Tizen applications */
230 int DALI_EXPORT_API main( int argc, char **argv )
232 // DALI_DEMO_THEME_PATH not passed to Application so TextField example uses default Toolkit style sheet.
233 Application application = Application::New( &argc, &argv );
235 RunTest( application );