src/Tizen.NUI.Components/Controls/Button.cs

   1 /*
   2  * Copyright(c) 2019 Samsung Electronics Co., Ltd.
   3  *
   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
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  *
  16  */
  17 using System;
  18 using System.ComponentModel;
  19 using Tizen.NUI.BaseComponents;
  20
  21 namespace Tizen.NUI.Components
  22 {
  23     /// <summary>
  24     /// Button is one kind of common component, a button clearly describes what action will occur when the user selects it.
  25     /// Button may contain text or an icon.
  26     /// </summary>
  27     /// <since_tizen> 6 </since_tizen>
  28     public class Button : Control
  29     {
  30         private ImageView backgroundImage;
  31         private ImageView shadowImage;
  32         private ImageView overlayImage;
  33
  34         private TextLabel buttonText;
  35         private ImageView buttonIcon;
  36
  37         private ButtonAttributes buttonAttributes;
  38         private EventHandler<StateChangedEventArgs> stateChangeHander;
  39
  40         private bool isSelected = false;
  41         private bool isEnabled = true;
  42         private bool isPressed = false;
  43         /// <summary>
  44         /// Creates a new instance of a Button.
  45         /// </summary>
  46         /// <since_tizen> 6 </since_tizen>
  47         public Button() : base()
  48         {
  49             Initialize();
  50         }
  51         /// <summary>
  52         /// Creates a new instance of a Button with style.
  53         /// </summary>
  54         /// <param name="style">Create Button by special style defined in UX.</param>
  55         /// <since_tizen> 6 </since_tizen>
  56         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
  57         [EditorBrowsable(EditorBrowsableState.Never)]
  58         public Button(string style) : base(style)
  59         {
  60             Initialize();
  61         }
  62         /// <summary>
  63         /// Creates a new instance of a Button with attributes.
  64         /// </summary>
  65         /// <param name="attributes">Create Button by attributes customized by user.</param>
  66         /// <since_tizen> 6 </since_tizen>
  67         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
  68         [EditorBrowsable(EditorBrowsableState.Never)]
  69         public Button(ButtonAttributes attributes) : base(attributes)
  70         {
  71             Initialize();
  72         }
  73         /// <summary>
  74         /// An event for the button clicked signal which can be used to subscribe or unsubscribe the event handler provided by the user.<br />
  75         /// </summary>
  76         /// <since_tizen> 6 </since_tizen>
  77         public event EventHandler<ClickEventArgs> ClickEvent;
  78         /// <summary>
  79         /// An event for the button state changed signal which can be used to subscribe or unsubscribe the event handler provided by the user.<br />
  80         /// </summary>
  81         /// <since_tizen> 6 </since_tizen>
  82         public event EventHandler<StateChangedEventArgs> StateChangedEvent
  83         {
  84             add
  85             {
  86                 stateChangeHander += value;
  87             }
  88             remove
  89             {
  90                 stateChangeHander -= value;
  91             }
  92         }
  93         /// <summary>
  94         /// Icon orientation.
  95         /// </summary>
  96         /// <since_tizen> 6 </since_tizen>
  97         public enum IconOrientation
  98         {
  99             /// <summary>
 100             /// Top.
 101             /// </summary>
 102             /// <since_tizen> 6 </since_tizen>
 103             Top,
 104             /// <summary>
 105             /// Bottom.
 106             /// </summary>
 107             /// <since_tizen> 6 </since_tizen>
 108             Bottom,
 109             /// <summary>
 110             /// Left.
 111             /// </summary>
 112             /// <since_tizen> 6 </since_tizen>
 113             Left,
 114             /// <summary>
 115             /// Right.
 116             /// </summary>
 117             /// <since_tizen> 6 </since_tizen>
 118             Right,
 119         }
 120         /// <summary>
 121         /// Flag to decide Button can be selected or not.
 122         /// </summary>
 123         /// <since_tizen> 6 </since_tizen>
 124         public bool IsSelectable
 125         {
 126             get
 127             {
 128                 return buttonAttributes?.IsSelectable ?? false;
 129             }
 130             set
 131             {
 132                 buttonAttributes.IsSelectable = value;
 133             }
 134         }
 135         /// <summary>
 136         /// Background image's resource url in Button.
 137         /// </summary>
 138         /// <since_tizen> 6 </since_tizen>
 139         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 140         [EditorBrowsable(EditorBrowsableState.Never)]
 141         public string BackgroundImageURL
 142         {
 143             get
 144             {
 145                 return buttonAttributes?.BackgroundImageAttributes?.ResourceURL?.All;
 146             }
 147             set
 148             {
 149                 if (value != null)
 150                 {
 151                     CreateBackgroundAttributes();
 152                     if (buttonAttributes.BackgroundImageAttributes.ResourceURL == null)
 153                     {
 154                         buttonAttributes.BackgroundImageAttributes.ResourceURL = new StringSelector();
 155                     }
 156                     buttonAttributes.BackgroundImageAttributes.ResourceURL.All = value;
 157                     RelayoutRequest();
 158                 }
 159             }
 160         }
 161         /// <summary>
 162         /// Background image's border in Button.
 163         /// </summary>
 164         /// <since_tizen> 6 </since_tizen>
 165         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 166         [EditorBrowsable(EditorBrowsableState.Never)]
 167         public Rectangle BackgroundImageBorder
 168         {
 169             get
 170             {
 171                 return buttonAttributes?.BackgroundImageAttributes?.Border?.All;
 172             }
 173             set
 174             {
 175                 if (value != null)
 176                 {
 177                     CreateBackgroundAttributes();
 178                     if (buttonAttributes.BackgroundImageAttributes.Border == null)
 179                     {
 180                         buttonAttributes.BackgroundImageAttributes.Border = new RectangleSelector();
 181                     }
 182                     buttonAttributes.BackgroundImageAttributes.Border.All = value;
 183                     RelayoutRequest();
 184                 }
 185             }
 186         }
 187         /// <summary>
 188         /// Shadow image's resource url in Button.
 189         /// </summary>
 190         /// <since_tizen> 6 </since_tizen>
 191         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 192         [EditorBrowsable(EditorBrowsableState.Never)]
 193         public string ShadowImageURL
 194         {
 195             get
 196             {
 197                 return buttonAttributes?.ShadowImageAttributes?.ResourceURL?.All;
 198             }
 199             set
 200             {
 201                 if (value != null)
 202                 {
 203                     CreateShadowAttributes();
 204                     if (buttonAttributes.ShadowImageAttributes.ResourceURL == null)
 205                     {
 206                         buttonAttributes.ShadowImageAttributes.ResourceURL = new StringSelector();
 207                     }
 208                     buttonAttributes.ShadowImageAttributes.ResourceURL.All = value;
 209                     RelayoutRequest();
 210                 }
 211             }
 212         }
 213         /// <summary>
 214         /// Shadow image's border in Button.
 215         /// </summary>
 216         /// <since_tizen> 6 </since_tizen>
 217         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 218         [EditorBrowsable(EditorBrowsableState.Never)]
 219         public Rectangle ShadowImageBorder
 220         {
 221             get
 222             {
 223                 return buttonAttributes?.ShadowImageAttributes?.Border?.All;
 224             }
 225             set
 226             {
 227                 if (value != null)
 228                 {
 229                     CreateShadowAttributes();
 230                     if (buttonAttributes.ShadowImageAttributes.Border == null)
 231                     {
 232                         buttonAttributes.ShadowImageAttributes.Border = new RectangleSelector();
 233                     }
 234                     buttonAttributes.ShadowImageAttributes.Border.All = value;
 235                     RelayoutRequest();
 236                 }
 237             }
 238         }
 239         /// <summary>
 240         /// Overlay image's resource url in Button.
 241         /// </summary>
 242         /// <since_tizen> 6 </since_tizen>
 243         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 244         [EditorBrowsable(EditorBrowsableState.Never)]
 245         public string OverlayImageURL
 246         {
 247             get
 248             {
 249                 return buttonAttributes?.OverlayImageAttributes?.ResourceURL?.All;
 250             }
 251             set
 252             {
 253                 if (value != null)
 254                 {
 255                     CreateOverlayAttributes();
 256                     if (buttonAttributes.OverlayImageAttributes.ResourceURL == null)
 257                     {
 258                         buttonAttributes.OverlayImageAttributes.ResourceURL = new StringSelector();
 259                     }
 260                     buttonAttributes.OverlayImageAttributes.ResourceURL.All = value;
 261                     RelayoutRequest();
 262                 }
 263             }
 264         }
 265         /// <summary>
 266         /// Overlay image's border in Button.
 267         /// </summary>
 268         /// <since_tizen> 6 </since_tizen>
 269         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 270         [EditorBrowsable(EditorBrowsableState.Never)]
 271         public Rectangle OverlayImageBorder
 272         {
 273             get
 274             {
 275                 return buttonAttributes?.OverlayImageAttributes?.Border?.All;
 276             }
 277             set
 278             {
 279                 if (value != null)
 280                 {
 281                     CreateOverlayAttributes();
 282                     if (buttonAttributes.OverlayImageAttributes.Border == null)
 283                     {
 284                         buttonAttributes.OverlayImageAttributes.Border = new RectangleSelector();
 285                     }
 286                     buttonAttributes.OverlayImageAttributes.Border.All = value;
 287                     RelayoutRequest();
 288                 }
 289             }
 290         }
 291         /// <summary>
 292         /// Text string in Button.
 293         /// </summary>
 294         /// <since_tizen> 6 </since_tizen>
 295         public string Text
 296         {
 297             get
 298             {
 299                 return buttonAttributes?.TextAttributes?.Text?.All;
 300             }
 301             set
 302             {
 303                 if (value != null)
 304                 {
 305                     CreateTextAttributes();
 306                     if(buttonAttributes.TextAttributes.Text == null)
 307                     {
 308                         buttonAttributes.TextAttributes.Text = new StringSelector();
 309                     }
 310                     buttonAttributes.TextAttributes.Text.All = value;
 311
 312                     RelayoutRequest();
 313                 }
 314             }
 315         }
 316         /// <summary>
 317         /// Translate text string in Button.
 318         /// </summary>
 319         /// <since_tizen> 6 </since_tizen>
 320         public string TranslatableText
 321         {
 322             get
 323             {
 324                 return buttonAttributes?.TextAttributes?.TranslatableText?.All;
 325             }
 326             set
 327             {
 328                 if (value != null)
 329                 {
 330                     CreateTextAttributes();
 331                     if (buttonAttributes.TextAttributes.TranslatableText == null)
 332                     {
 333                         buttonAttributes.TextAttributes.TranslatableText = new StringSelector();
 334                     }
 335                     buttonAttributes.TextAttributes.TranslatableText.All = value;
 336
 337                     RelayoutRequest();
 338                 }
 339             }
 340         }
 341         /// <summary>
 342         /// Text point size in Button.
 343         /// </summary>
 344         /// <since_tizen> 6 </since_tizen>
 345         public float PointSize
 346         {
 347             get
 348             {
 349                 return buttonAttributes?.TextAttributes?.PointSize?.All ?? 0;
 350             }
 351             set
 352             {
 353                 CreateTextAttributes();
 354                 if (buttonAttributes.TextAttributes.PointSize == null)
 355                 {
 356                     buttonAttributes.TextAttributes.PointSize = new FloatSelector();
 357                 }
 358                 buttonAttributes.TextAttributes.PointSize.All = value;
 359                 RelayoutRequest();
 360             }
 361         }
 362         /// <summary>
 363         /// Text font family in Button.
 364         /// </summary>
 365         /// <since_tizen> 6 </since_tizen>
 366         public string FontFamily
 367         {
 368             get
 369             {
 370                 return buttonAttributes?.TextAttributes?.FontFamily;
 371             }
 372             set
 373             {
 374                 CreateTextAttributes();
 375                 buttonAttributes.TextAttributes.FontFamily = value;
 376                 RelayoutRequest();
 377             }
 378         }
 379         /// <summary>
 380         /// Text color in Button.
 381         /// </summary>
 382         /// <since_tizen> 6 </since_tizen>
 383         public Color TextColor
 384         {
 385             get
 386             {
 387                 return buttonAttributes?.TextAttributes?.TextColor?.All;
 388             }
 389             set
 390             {
 391                 CreateTextAttributes();
 392                 if (buttonAttributes.TextAttributes.TextColor == null)
 393                 {
 394                     buttonAttributes.TextAttributes.TextColor = new ColorSelector();
 395                 }
 396                 buttonAttributes.TextAttributes.TextColor.All = value;
 397                 RelayoutRequest();
 398             }
 399         }
 400         /// <summary>
 401         /// Text horizontal alignment in Button.
 402         /// </summary>
 403         /// <since_tizen> 6 </since_tizen>
 404         public HorizontalAlignment TextAlignment
 405         {
 406             get
 407             {
 408                 return buttonAttributes?.TextAttributes?.HorizontalAlignment ?? HorizontalAlignment.Center;
 409             }
 410             set
 411             {
 412                 CreateTextAttributes();
 413                 buttonAttributes.TextAttributes.HorizontalAlignment = value;
 414                 RelayoutRequest();
 415             }
 416         }
 417         /// <summary>
 418         /// Icon image's resource url in Button.
 419         /// </summary>
 420         /// <since_tizen> 6 </since_tizen>
 421         public string IconURL
 422         {
 423             get
 424             {
 425                 return buttonAttributes?.IconAttributes?.ResourceURL?.All;
 426             }
 427             set
 428             {
 429                 if (value != null)
 430                 {
 431                     CreateIconAttributes();
 432                     if (buttonAttributes.IconAttributes.ResourceURL == null)
 433                     {
 434                         buttonAttributes.IconAttributes.ResourceURL = new StringSelector();
 435                     }
 436                     buttonAttributes.IconAttributes.ResourceURL.All = value;
 437                     RelayoutRequest();
 438                 }
 439             }
 440         }
 441         /// <summary>
 442         /// Text string selector in Button.
 443         /// </summary>
 444         /// <since_tizen> 6 </since_tizen>
 445         public StringSelector TextSelector
 446         {
 447             get
 448             {
 449                 return buttonAttributes?.TextAttributes?.Text;
 450             }
 451             set
 452             {
 453                 if (value != null)
 454                 {
 455                     CreateTextAttributes();
 456                     buttonAttributes.TextAttributes.Text = value.Clone() as StringSelector;
 457                     RelayoutRequest();
 458                 }
 459             }
 460         }
 461         /// <summary>
 462         /// Translateable text string selector in Button.
 463         /// </summary>
 464         /// <since_tizen> 6 </since_tizen>
 465         public StringSelector TranslatableTextSelector
 466         {
 467             get
 468             {
 469                 return buttonAttributes?.TextAttributes?.TranslatableText;
 470             }
 471             set
 472             {
 473                 if (value != null)
 474                 {
 475                     CreateTextAttributes();
 476                     buttonAttributes.TextAttributes.TranslatableText = value.Clone() as StringSelector;
 477                     RelayoutRequest();
 478                 }
 479             }
 480         }
 481         /// <summary>
 482         /// Text color selector in Button.
 483         /// </summary>
 484         /// <since_tizen> 6 </since_tizen>
 485         public ColorSelector TextColorSelector
 486         {
 487             get
 488             {
 489                 return buttonAttributes?.TextAttributes?.TextColor;
 490             }
 491             set
 492             {
 493                 if(value != null)
 494                 {
 495                     CreateTextAttributes();
 496                     buttonAttributes.TextAttributes.TextColor = value.Clone() as ColorSelector;
 497                     RelayoutRequest();
 498                 }
 499             }
 500         }
 501         /// <summary>
 502         /// Text font size selector in Button.
 503         /// </summary>
 504         /// <since_tizen> 6 </since_tizen>
 505         public FloatSelector PointSizeSelector
 506         {
 507             get
 508             {
 509                 return buttonAttributes?.TextAttributes?.PointSize;
 510             }
 511             set
 512             {
 513                 if (value != null)
 514                 {
 515                     CreateTextAttributes();
 516                     buttonAttributes.TextAttributes.PointSize = value.Clone() as FloatSelector;
 517                     RelayoutRequest();
 518                 }
 519             }
 520         }
 521         /// <summary>
 522         /// Icon image's resource url selector in Button.
 523         /// </summary>
 524         /// <since_tizen> 6 </since_tizen>
 525         public StringSelector IconURLSelector
 526         {
 527             get
 528             {
 529                 return buttonAttributes?.IconAttributes?.ResourceURL;
 530             }
 531             set
 532             {
 533                 if (value != null)
 534                 {
 535                     CreateIconAttributes();
 536                     buttonAttributes.IconAttributes.ResourceURL = value.Clone() as StringSelector;
 537                     RelayoutRequest();
 538                 }
 539             }
 540         }
 541         /// <summary>
 542         /// Background image's resource url selector in Button.
 543         /// </summary>
 544         /// <since_tizen> 6 </since_tizen>
 545         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 546         [EditorBrowsable(EditorBrowsableState.Never)]
 547         public StringSelector BackgroundImageURLSelector
 548         {
 549             get
 550             {
 551                 return buttonAttributes?.BackgroundImageAttributes?.ResourceURL;
 552             }
 553             set
 554             {
 555                 if (value != null)
 556                 {
 557                     CreateBackgroundAttributes();
 558                     buttonAttributes.BackgroundImageAttributes.ResourceURL = value.Clone() as StringSelector;
 559                     RelayoutRequest();
 560                 }
 561             }
 562         }
 563         /// <summary>
 564         /// Background image's border selector in Button.
 565         /// </summary>
 566         /// <since_tizen> 6 </since_tizen>
 567         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 568         [EditorBrowsable(EditorBrowsableState.Never)]
 569         public RectangleSelector BackgroundImageBorderSelector
 570         {
 571             get
 572             {
 573                 return buttonAttributes?.BackgroundImageAttributes?.Border;
 574             }
 575             set
 576             {
 577                 if (value != null)
 578                 {
 579                     CreateBackgroundAttributes();
 580                     buttonAttributes.BackgroundImageAttributes.Border = value.Clone() as RectangleSelector;
 581                     RelayoutRequest();
 582                 }
 583             }
 584         }
 585         /// <summary>
 586         /// Shadow image's resource url selector in Button.
 587         /// </summary>
 588         /// <since_tizen> 6 </since_tizen>
 589         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 590         [EditorBrowsable(EditorBrowsableState.Never)]
 591         public StringSelector ShadowImageURLSelector
 592         {
 593             get
 594             {
 595                 return buttonAttributes?.ShadowImageAttributes?.ResourceURL;
 596             }
 597             set
 598             {
 599                 if (value != null)
 600                 {
 601                     CreateShadowAttributes();
 602                     buttonAttributes.ShadowImageAttributes.ResourceURL = value.Clone() as StringSelector;
 603                     RelayoutRequest();
 604                 }
 605             }
 606         }
 607         /// <summary>
 608         /// Shadow image's border selector in Button.
 609         /// </summary>
 610         /// <since_tizen> 6 </since_tizen>
 611         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 612         [EditorBrowsable(EditorBrowsableState.Never)]
 613         public RectangleSelector ShadowImageBorderSelector
 614         {
 615             get
 616             {
 617                 return buttonAttributes?.ShadowImageAttributes?.Border;
 618             }
 619             set
 620             {
 621                 if (value != null)
 622                 {
 623                     CreateShadowAttributes();
 624                     buttonAttributes.ShadowImageAttributes.Border = value.Clone() as RectangleSelector;
 625                     RelayoutRequest();
 626                 }
 627             }
 628         }
 629         /// <summary>
 630         /// Overlay image's resource url selector in Button.
 631         /// </summary>
 632         /// <since_tizen> 6 </since_tizen>
 633         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 634         [EditorBrowsable(EditorBrowsableState.Never)]
 635         public StringSelector OverlayImageURLSelector
 636         {
 637             get
 638             {
 639                 return buttonAttributes?.OverlayImageAttributes?.ResourceURL;
 640             }
 641             set
 642             {
 643                 if (value != null)
 644                 {
 645                     CreateOverlayAttributes();
 646                     buttonAttributes.OverlayImageAttributes.ResourceURL = value.Clone() as StringSelector;
 647                     RelayoutRequest();
 648                 }
 649             }
 650         }
 651         /// <summary>
 652         /// Overlay image's border selector in Button.
 653         /// </summary>
 654         /// <since_tizen> 6 </since_tizen>
 655         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 656         [EditorBrowsable(EditorBrowsableState.Never)]
 657         public RectangleSelector OverlayImageBorderSelector
 658         {
 659             get
 660             {
 661                 return buttonAttributes?.OverlayImageAttributes?.Border;
 662             }
 663             set
 664             {
 665                 if (value != null)
 666                 {
 667                     CreateOverlayAttributes();
 668                     buttonAttributes.OverlayImageAttributes.Border = value.Clone() as RectangleSelector;
 669                     RelayoutRequest();
 670                 }
 671             }
 672         }
 673         /// <summary>
 674         /// Flag to decide selected state in Button.
 675         /// </summary>
 676         /// <since_tizen> 6 </since_tizen>
 677         public bool IsSelected
 678         {
 679             get
 680             {
 681                 return isSelected;
 682             }
 683             set
 684             {
 685                 isSelected = value;
 686                 UpdateState();
 687             }
 688         }
 689         /// <summary>
 690         /// Flag to decide enable or disable in Button.
 691         /// </summary>
 692         /// <since_tizen> 6 </since_tizen>
 693         public bool IsEnabled
 694         {
 695             get
 696             {
 697                 return isEnabled;
 698             }
 699             set
 700             {
 701                 isEnabled = value;
 702                 UpdateState();
 703             }
 704         }
 705
 706         /// <summary>
 707         /// Icon relative orientation in Button, work only when show icon and text.
 708         /// </summary>
 709         /// <since_tizen> 6 </since_tizen>
 710         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 711         [EditorBrowsable(EditorBrowsableState.Never)]
 712         public IconOrientation? IconRelativeOrientation
 713         {
 714             get
 715             {
 716                 return buttonAttributes?.IconRelativeOrientation;
 717             }
 718             set
 719             {
 720                 if(buttonAttributes != null && buttonAttributes.IconRelativeOrientation != value)
 721                 {
 722                     buttonAttributes.IconRelativeOrientation = value;
 723                     RelayoutRequest();
 724                 }
 725             }
 726         }
 727
 728         /// <summary>
 729         /// Icon padding in Button, work only when show icon and text.
 730         /// </summary>
 731         /// <since_tizen> 6 </since_tizen>
 732         public Extents IconPadding
 733         {
 734             get
 735             {
 736                 if (null == buttonAttributes || null == buttonAttributes.IconAttributes)
 737                 {
 738                     return null;
 739                 }
 740                 else
 741                 {
 742                     return new Extents((ushort)buttonAttributes.IconAttributes.PaddingLeft, (ushort)buttonAttributes.IconAttributes.PaddingRight, (ushort)buttonAttributes.IconAttributes.PaddingTop, (ushort)buttonAttributes.IconAttributes.PaddingBottom);
 743                 }
 744             }
 745             set
 746             {
 747                 if (null != value)
 748                 {
 749                     CreateIconAttributes();
 750                     buttonAttributes.IconAttributes.PaddingLeft = value.Start;
 751                     buttonAttributes.IconAttributes.PaddingRight = value.End;
 752                     buttonAttributes.IconAttributes.PaddingTop = value.Top;
 753                     buttonAttributes.IconAttributes.PaddingBottom = value.Bottom;
 754                     RelayoutRequest();
 755                 }
 756             }
 757         }
 758
 759         /// <summary>
 760         /// Text padding in Button, work only when show icon and text.
 761         /// </summary>
 762         /// <since_tizen> 6 </since_tizen>
 763         public Extents TextPadding
 764         {
 765             get
 766             {
 767                 if (null == buttonAttributes || null == buttonAttributes.TextAttributes)
 768                 {
 769                     return null;
 770                 }
 771                 else
 772                 {
 773                     return new Extents((ushort)buttonAttributes.TextAttributes.PaddingLeft, (ushort)buttonAttributes.TextAttributes.PaddingRight, (ushort)buttonAttributes.TextAttributes.PaddingTop, (ushort)buttonAttributes.TextAttributes.PaddingBottom);
 774                 }
 775             }
 776             set
 777             {
 778                 if (null != value)
 779                 {
 780                     CreateTextAttributes();
 781                     buttonAttributes.TextAttributes.PaddingLeft = value.Start;
 782                     buttonAttributes.TextAttributes.PaddingRight = value.End;
 783                     buttonAttributes.TextAttributes.PaddingTop = value.Top;
 784                     buttonAttributes.TextAttributes.PaddingBottom = value.Bottom;
 785                     RelayoutRequest();
 786                 }
 787             }
 788         }
 789
 790         /// <summary>
 791         /// Dispose Button and all children on it.
 792         /// </summary>
 793         /// <param name="type">Dispose type.</param>
 794         /// <since_tizen> 6 </since_tizen>
 795         protected override void Dispose(DisposeTypes type)
 796         {
 797             if (disposed)
 798             {
 799                 return;
 800             }
 801
 802             if (type == DisposeTypes.Explicit)
 803             {
 804                 if (buttonIcon != null)
 805                 {
 806                     buttonIcon.Relayout -= OnIconRelayout;
 807                     Utility.Dispose(buttonIcon);
 808                 }
 809                 if (buttonText != null)
 810                 {
 811                     Utility.Dispose(buttonText);
 812                 }
 813                 if (overlayImage != null)
 814                 {
 815                     Utility.Dispose(overlayImage);
 816                 }
 817                 if (backgroundImage != null)
 818                 {
 819                     Utility.Dispose(backgroundImage);
 820                 }
 821                 if (shadowImage != null)
 822                 {
 823                     Utility.Dispose(shadowImage);
 824                 }
 825             }
 826
 827             base.Dispose(type);
 828         }
 829         /// <summary>
 830         /// Called after a key event is received by the view that has had its focus set.
 831         /// </summary>
 832         /// <param name="key">The key event.</param>
 833         /// <returns>True if the key event should be consumed.</returns>
 834         /// <since_tizen> 6 </since_tizen>
 835         public override bool OnKey(Key key)
 836         {
 837             if (key.State == Key.StateType.Down)
 838             {
 839                 if (key.KeyPressedName == "Return")
 840                 {
 841                     isPressed = true;
 842                     UpdateState();
 843                     if(isEnabled)
 844                     {
 845                         ClickEventArgs eventArgs = new ClickEventArgs();
 846                         OnClick(eventArgs);
 847                     }
 848                 }
 849             }
 850             else if (key.State == Key.StateType.Up)
 851             {
 852                 if (key.KeyPressedName == "Return")
 853                 {
 854                     isPressed = false;
 855                     if (buttonAttributes.IsSelectable != null && buttonAttributes.IsSelectable == true)
 856                     {
 857                         isSelected = !isSelected;
 858                     }
 859                     UpdateState();
 860                 }
 861             }
 862             return base.OnKey(key);
 863         }
 864
 865         /// <summary>
 866         /// Called when the control gain key input focus. Should be overridden by derived classes if they need to customize what happens when the focus is gained.
 867         /// </summary>
 868         /// <since_tizen> 6 </since_tizen>
 869         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 870         [EditorBrowsable(EditorBrowsableState.Never)]
 871         public override void OnFocusGained()
 872         {
 873             base.OnFocusGained();
 874             UpdateState();
 875         }
 876         /// <summary>
 877         /// Called when the control loses key input focus. Should be overridden by derived classes if they need to customize what happens when the focus is lost.
 878         /// </summary>
 879         /// <since_tizen> 6 </since_tizen>
 880         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 881         [EditorBrowsable(EditorBrowsableState.Never)]
 882         public override void OnFocusLost()
 883         {
 884             base.OnFocusLost();
 885             UpdateState();
 886         }
 887
 888         /// <summary>
 889         /// Tap gesture event callback.
 890         /// </summary>
 891         /// <param name="source">Source which recieved touch event.</param>
 892         /// <param name="e">Tap gesture event argument.</param>
 893         /// <since_tizen> 6 </since_tizen>
 894         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 895         [EditorBrowsable(EditorBrowsableState.Never)]
 896         protected override void OnTapGestureDetected(object source, TapGestureDetector.DetectedEventArgs e)
 897         {
 898             if (isEnabled)
 899             {
 900                 ClickEventArgs eventArgs = new ClickEventArgs();
 901                 OnClick(eventArgs);
 902                 base.OnTapGestureDetected(source, e);
 903             }
 904         }
 905         /// <summary>
 906         /// Called after a touch event is received by the owning view.<br />
 907         /// CustomViewBehaviour.REQUIRES_TOUCH_EVENTS must be enabled during construction. See CustomView(ViewWrapperImpl.CustomViewBehaviour behaviour).<br />
 908         /// </summary>
 909         /// <param name="touch">The touch event.</param>
 910         /// <returns>True if the event should be consumed.</returns>
 911         /// <since_tizen> 6 </since_tizen>
 912         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 913         [EditorBrowsable(EditorBrowsableState.Never)]
 914         public override bool OnTouch(Touch touch)
 915         {
 916             PointStateType state = touch.GetState(0);
 917
 918             switch(state)
 919             {
 920                 case PointStateType.Down:
 921                     isPressed = true;
 922                     UpdateState();
 923                     return true;
 924                 case PointStateType.Interrupted:
 925                     isPressed = false;
 926                     UpdateState();
 927                     return true;
 928                 case PointStateType.Up:
 929                     isPressed = false;
 930                     if (buttonAttributes.IsSelectable != null && buttonAttributes.IsSelectable == true)
 931                     {
 932                         isSelected = !isSelected;
 933                     }
 934                     UpdateState();
 935                     return true;
 936                 default:
 937                     break;
 938             }
 939             return base.OnTouch(touch);
 940         }
 941         /// <summary>
 942         /// Get Button attribues.
 943         /// </summary>
 944         /// <since_tizen> 6 </since_tizen>
 945         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 946         [EditorBrowsable(EditorBrowsableState.Never)]
 947         protected override Attributes GetAttributes()
 948         {
 949             return new ButtonAttributes();
 950         }
 951         /// <summary>
 952         /// Update Button by attributes.
 953         /// </summary>
 954         /// <since_tizen> 6 </since_tizen>
 955         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
 956         [EditorBrowsable(EditorBrowsableState.Never)]
 957         protected override void OnUpdate()
 958         {
 959             if (buttonAttributes.ShadowImageAttributes != null)
 960             {
 961                 if(shadowImage == null)
 962                 {
 963                     shadowImage = new ImageView()
 964                     {
 965                         WidthResizePolicy = ResizePolicyType.FillToParent,
 966                         HeightResizePolicy = ResizePolicyType.FillToParent
 967                     };
 968                     this.Add(shadowImage);
 969                 }
 970                 ApplyAttributes(shadowImage, buttonAttributes.ShadowImageAttributes);
 971             }
 972
 973             if (buttonAttributes.BackgroundImageAttributes != null)
 974             {
 975                 if(backgroundImage == null)
 976                 {
 977                     backgroundImage = new ImageView()
 978                     {
 979                         WidthResizePolicy = ResizePolicyType.FillToParent,
 980                         HeightResizePolicy = ResizePolicyType.FillToParent
 981                     };
 982                     this.Add(backgroundImage);
 983                 }
 984                 ApplyAttributes(backgroundImage, buttonAttributes.BackgroundImageAttributes);
 985             }
 986
 987             if (buttonAttributes.OverlayImageAttributes != null)
 988             {
 989                 if(overlayImage == null)
 990                 {
 991                     overlayImage = new ImageView()
 992                     {
 993                         WidthResizePolicy = ResizePolicyType.FillToParent,
 994                         HeightResizePolicy = ResizePolicyType.FillToParent
 995                     };
 996                     this.Add(overlayImage);
 997                 }
 998                 ApplyAttributes(overlayImage, buttonAttributes.OverlayImageAttributes);
 999             }
1000
1001             if (buttonAttributes.TextAttributes != null)
1002             {
1003                 if(buttonText == null)
1004                 {
1005                     buttonText = new TextLabel();
1006                     this.Add(buttonText);
1007                 }
1008                 ApplyAttributes(buttonText, buttonAttributes.TextAttributes);
1009             }
1010
1011             if (buttonAttributes.IconAttributes != null)
1012             {
1013                 if(buttonIcon == null)
1014                 {
1015                     buttonIcon = new ImageView();
1016                     buttonIcon.Relayout += OnIconRelayout;
1017                     this.Add(buttonIcon);
1018                 }
1019                 ApplyAttributes(buttonIcon, buttonAttributes.IconAttributes);
1020             }
1021
1022             MeasureText();
1023             LayoutChild();
1024
1025             Sensitive = isEnabled ? true : false;
1026         }
1027
1028         /// <summary>
1029         /// Update Button State.
1030         /// </summary>
1031         /// <since_tizen> 6 </since_tizen>
1032         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
1033         [EditorBrowsable(EditorBrowsableState.Never)]
1034         protected void UpdateState()
1035         {
1036             ControlStates sourceState = State;
1037             ControlStates targetState;
1038
1039             if(isEnabled)
1040             {
1041                 targetState = isPressed ? ControlStates.Pressed : (IsFocused ? (IsSelected ? ControlStates.SelectedFocused : ControlStates.Focused) : (IsSelected ? ControlStates.Selected : ControlStates.Normal));
1042             }
1043             else
1044             {
1045                 targetState = IsSelected ? ControlStates.DisabledSelected : (IsFocused ? ControlStates.DisabledFocused : ControlStates.Disabled);
1046             }
1047             if(sourceState != targetState)
1048             {
1049                 State = targetState;
1050
1051                 OnUpdate();
1052
1053                 StateChangedEventArgs e = new StateChangedEventArgs
1054                 {
1055                     PreviousState = sourceState,
1056                     CurrentState = targetState
1057                 };
1058                 stateChangeHander?.Invoke(this, e);
1059             }
1060         }
1061         /// <summary>
1062         /// It is hijack by using protected, attributes copy problem when class inherited from Button.
1063         /// </summary>
1064         /// <since_tizen> 6 </since_tizen>
1065         private void Initialize()
1066         {
1067             buttonAttributes = attributes as ButtonAttributes;
1068             if (buttonAttributes == null)
1069             {
1070                 throw new Exception("Button attribute parse error.");
1071             }
1072
1073             ApplyAttributes(this, buttonAttributes);
1074             LayoutDirectionChanged += OnLayoutDirectionChanged;
1075         }
1076
1077         /// <summary>
1078         /// Measure text, it can be override.
1079         /// </summary>
1080         /// <since_tizen> 6 </since_tizen>
1081         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
1082         [EditorBrowsable(EditorBrowsableState.Never)]
1083         protected virtual void MeasureText()
1084         {
1085             if (buttonAttributes.IconRelativeOrientation == null || buttonIcon == null || buttonText == null)
1086             {
1087                 return;
1088             }
1089             buttonText.WidthResizePolicy = ResizePolicyType.Fixed;
1090             buttonText.HeightResizePolicy = ResizePolicyType.Fixed;
1091             int textPaddingLeft = buttonAttributes.TextAttributes.PaddingLeft;
1092             int textPaddingRight = buttonAttributes.TextAttributes.PaddingRight;
1093             int textPaddingTop = buttonAttributes.TextAttributes.PaddingTop;
1094             int textPaddingBottom = buttonAttributes.TextAttributes.PaddingBottom;
1095
1096             int iconPaddingLeft = buttonAttributes.IconAttributes.PaddingLeft;
1097             int iconPaddingRight = buttonAttributes.IconAttributes.PaddingRight;
1098             int iconPaddingTop = buttonAttributes.IconAttributes.PaddingTop;
1099             int iconPaddingBottom = buttonAttributes.IconAttributes.PaddingBottom;
1100
1101             if (IconRelativeOrientation == IconOrientation.Top || IconRelativeOrientation == IconOrientation.Bottom)
1102             {
1103                 buttonText.SizeWidth = SizeWidth - textPaddingLeft - textPaddingRight;
1104                 buttonText.SizeHeight = SizeHeight - textPaddingTop - textPaddingBottom - iconPaddingTop - iconPaddingBottom - buttonIcon.SizeHeight;
1105             }
1106             else
1107             {
1108                 buttonText.SizeWidth = SizeWidth - textPaddingLeft - textPaddingRight - iconPaddingLeft - iconPaddingRight - buttonIcon.SizeWidth;
1109                 buttonText.SizeHeight = SizeHeight - textPaddingTop - textPaddingBottom;
1110             }
1111         }
1112         /// <summary>
1113         /// Layout child, it can be override.
1114         /// </summary>
1115         /// <since_tizen> 6 </since_tizen>
1116         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
1117         [EditorBrowsable(EditorBrowsableState.Never)]
1118         protected virtual void LayoutChild()
1119         {
1120             if (buttonAttributes.IconRelativeOrientation == null || buttonIcon == null || buttonText == null)
1121             {
1122                 return;
1123             }
1124
1125             int textPaddingLeft = buttonAttributes.TextAttributes.PaddingLeft;
1126             int textPaddingRight = buttonAttributes.TextAttributes.PaddingRight;
1127             int textPaddingTop = buttonAttributes.TextAttributes.PaddingTop;
1128             int textPaddingBottom = buttonAttributes.TextAttributes.PaddingBottom;
1129
1130             int iconPaddingLeft = buttonAttributes.IconAttributes.PaddingLeft;
1131             int iconPaddingRight = buttonAttributes.IconAttributes.PaddingRight;
1132             int iconPaddingTop = buttonAttributes.IconAttributes.PaddingTop;
1133             int iconPaddingBottom = buttonAttributes.IconAttributes.PaddingBottom;
1134
1135             switch (IconRelativeOrientation)
1136             {
1137                 case IconOrientation.Top:
1138                     buttonIcon.PositionUsesPivotPoint = true;
1139                     buttonIcon.ParentOrigin = NUI.ParentOrigin.TopCenter;
1140                     buttonIcon.PivotPoint = NUI.PivotPoint.TopCenter;
1141                     buttonIcon.Position2D = new Position2D(0, iconPaddingTop);
1142
1143                     buttonText.PositionUsesPivotPoint = true;
1144                     buttonText.ParentOrigin = NUI.ParentOrigin.BottomCenter;
1145                     buttonText.PivotPoint = NUI.PivotPoint.BottomCenter;
1146                     buttonText.Position2D = new Position2D(0, -textPaddingBottom);
1147                     break;
1148                 case IconOrientation.Bottom:
1149                     buttonIcon.PositionUsesPivotPoint = true;
1150                     buttonIcon.ParentOrigin = NUI.ParentOrigin.BottomCenter;
1151                     buttonIcon.PivotPoint = NUI.PivotPoint.BottomCenter;
1152                     buttonIcon.Position2D = new Position2D(0, -iconPaddingBottom);
1153
1154                     buttonText.PositionUsesPivotPoint = true;
1155                     buttonText.ParentOrigin = NUI.ParentOrigin.TopCenter;
1156                     buttonText.PivotPoint = NUI.PivotPoint.TopCenter;
1157                     buttonText.Position2D = new Position2D(0, textPaddingTop);
1158                     break;
1159                 case IconOrientation.Left:
1160                     if (LayoutDirection == ViewLayoutDirectionType.LTR)
1161                     {
1162                         buttonIcon.PositionUsesPivotPoint = true;
1163                         buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterLeft;
1164                         buttonIcon.PivotPoint = NUI.PivotPoint.CenterLeft;
1165                         buttonIcon.Position2D = new Position2D(iconPaddingLeft, 0);
1166
1167                         buttonText.PositionUsesPivotPoint = true;
1168                         buttonText.ParentOrigin = NUI.ParentOrigin.CenterRight;
1169                         buttonText.PivotPoint = NUI.PivotPoint.CenterRight;
1170                         buttonText.Position2D = new Position2D(-textPaddingRight, 0);
1171                     }
1172                     else
1173                     {
1174                         buttonIcon.PositionUsesPivotPoint = true;
1175                         buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterRight;
1176                         buttonIcon.PivotPoint = NUI.PivotPoint.CenterRight;
1177                         buttonIcon.Position2D = new Position2D(-iconPaddingLeft, 0);
1178
1179                         buttonText.PositionUsesPivotPoint = true;
1180                         buttonText.ParentOrigin = NUI.ParentOrigin.CenterLeft;
1181                         buttonText.PivotPoint = NUI.PivotPoint.CenterLeft;
1182                         buttonText.Position2D = new Position2D(textPaddingRight, 0);
1183                     }
1184
1185                     break;
1186                 case IconOrientation.Right:
1187                     if (LayoutDirection == ViewLayoutDirectionType.RTL)
1188                     {
1189                         buttonIcon.PositionUsesPivotPoint = true;
1190                         buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterLeft;
1191                         buttonIcon.PivotPoint = NUI.PivotPoint.CenterLeft;
1192                         buttonIcon.Position2D = new Position2D(iconPaddingRight, 0);
1193
1194                         buttonText.PositionUsesPivotPoint = true;
1195                         buttonText.ParentOrigin = NUI.ParentOrigin.CenterRight;
1196                         buttonText.PivotPoint = NUI.PivotPoint.CenterRight;
1197                         buttonText.Position2D = new Position2D(-textPaddingLeft, 0);
1198                     }
1199                     else
1200                     {
1201                         buttonIcon.PositionUsesPivotPoint = true;
1202                         buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterRight;
1203                         buttonIcon.PivotPoint = NUI.PivotPoint.CenterRight;
1204                         buttonIcon.Position2D = new Position2D(-iconPaddingRight, 0);
1205
1206                         buttonText.PositionUsesPivotPoint = true;
1207                         buttonText.ParentOrigin = NUI.ParentOrigin.CenterLeft;
1208                         buttonText.PivotPoint = NUI.PivotPoint.CenterLeft;
1209                         buttonText.Position2D = new Position2D(textPaddingLeft, 0);
1210                     }
1211                     break;
1212                 default:
1213                     break;
1214             }
1215         }
1216         /// <summary>
1217         /// Theme change callback when theme is changed, this callback will be trigger.
1218         /// </summary>
1219         /// <since_tizen> 6 </since_tizen>
1220         /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
1221         [EditorBrowsable(EditorBrowsableState.Never)]
1222         protected override void OnThemeChangedEvent(object sender, StyleManager.ThemeChangeEventArgs e)
1223         {
1224             ButtonAttributes tempAttributes = StyleManager.Instance.GetAttributes(style) as ButtonAttributes;
1225             if(tempAttributes != null)
1226             {
1227                 attributes = buttonAttributes = tempAttributes;
1228                 RelayoutRequest();
1229             }
1230         }
1231
1232         private void OnLayoutDirectionChanged(object sender, LayoutDirectionChangedEventArgs e)
1233         {
1234             MeasureText();
1235             LayoutChild();
1236         }
1237
1238         private void OnClick(ClickEventArgs eventArgs)
1239         {
1240             ClickEvent?.Invoke(this, eventArgs);
1241         }
1242
1243         private void OnIconRelayout(object sender, EventArgs e)
1244         {
1245             MeasureText();
1246             LayoutChild();
1247         }
1248
1249         private void CreateBackgroundAttributes()
1250         {
1251             if (buttonAttributes.BackgroundImageAttributes == null)
1252             {
1253                 buttonAttributes.BackgroundImageAttributes = new ImageAttributes()
1254                 {
1255                     PositionUsesPivotPoint = true,
1256                     ParentOrigin = Tizen.NUI.ParentOrigin.Center,
1257                     PivotPoint = Tizen.NUI.PivotPoint.Center,
1258                     WidthResizePolicy = ResizePolicyType.FillToParent,
1259                     HeightResizePolicy = ResizePolicyType.FillToParent
1260                 };
1261             }
1262         }
1263
1264         private void CreateShadowAttributes()
1265         {
1266             if (buttonAttributes.ShadowImageAttributes == null)
1267             {
1268                 buttonAttributes.ShadowImageAttributes = new ImageAttributes()
1269                 {
1270                     PositionUsesPivotPoint = true,
1271                     ParentOrigin = Tizen.NUI.ParentOrigin.Center,
1272                     PivotPoint = Tizen.NUI.PivotPoint.Center,
1273                     WidthResizePolicy = ResizePolicyType.FillToParent,
1274                     HeightResizePolicy = ResizePolicyType.FillToParent
1275                 };
1276             }
1277         }
1278
1279         private void CreateOverlayAttributes()
1280         {
1281             if (buttonAttributes.OverlayImageAttributes == null)
1282             {
1283                 buttonAttributes.OverlayImageAttributes = new ImageAttributes()
1284                 {
1285                     PositionUsesPivotPoint = true,
1286                     ParentOrigin = Tizen.NUI.ParentOrigin.Center,
1287                     PivotPoint = Tizen.NUI.PivotPoint.Center,
1288                     WidthResizePolicy = ResizePolicyType.FillToParent,
1289                     HeightResizePolicy = ResizePolicyType.FillToParent
1290                 };
1291             }
1292         }
1293
1294         private void CreateTextAttributes()
1295         {
1296             if (buttonAttributes.TextAttributes == null)
1297             {
1298                 buttonAttributes.TextAttributes = new TextAttributes()
1299                 {
1300                     PositionUsesPivotPoint = true,
1301                     ParentOrigin = Tizen.NUI.ParentOrigin.Center,
1302                     PivotPoint = Tizen.NUI.PivotPoint.Center,
1303                     WidthResizePolicy = ResizePolicyType.FillToParent,
1304                     HeightResizePolicy = ResizePolicyType.FillToParent,
1305                     HorizontalAlignment = HorizontalAlignment.Center,
1306                     VerticalAlignment = VerticalAlignment.Center
1307                 };
1308             }
1309         }
1310
1311         private void CreateIconAttributes()
1312         {
1313             if (buttonAttributes.IconAttributes == null)
1314             {
1315                 buttonAttributes.IconAttributes = new ImageAttributes()
1316                 {
1317                     PositionUsesPivotPoint = true,
1318                     ParentOrigin = Tizen.NUI.ParentOrigin.Center,
1319                     PivotPoint = Tizen.NUI.PivotPoint.Center,
1320                     WidthResizePolicy = ResizePolicyType.UseNaturalSize,
1321                     HeightResizePolicy = ResizePolicyType.UseNaturalSize,
1322                 };
1323             }
1324         }
1325         /// <summary>
1326         /// ClickEventArgs is a class to record button click event arguments which will sent to user.
1327         /// </summary>
1328         /// <since_tizen> 6 </since_tizen>
1329         public class ClickEventArgs : EventArgs
1330         {
1331         }
1332         /// <summary>
1333         /// StateChangeEventArgs is a class to record button state change event arguments which will sent to user.
1334         /// </summary>
1335         /// <since_tizen> 6 </since_tizen>
1336         public class StateChangedEventArgs : EventArgs
1337         {
1338             /// <summary> previous state of Button </summary>
1339             /// <since_tizen> 6 </since_tizen>
1340             public ControlStates PreviousState;
1341             /// <summary> current state of Button </summary>
1342             /// <since_tizen> 6 </since_tizen>
1343             public ControlStates CurrentState;
1344         }
1345
1346     }
1347 }