src/Tizen.WebView/Tizen.WebView/WebView.cs

   1 /*
   2  * Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
   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 ElmSharp;
  18 using System;
  19 using System.Collections.Generic;
  20 using System.Runtime.InteropServices;
  21 using System.ComponentModel;
  22
  23 namespace Tizen.WebView
  24 {
  25     /// <summary>
  26     /// Enumeration values used to specify search options.
  27     /// </summary>
  28     /// <since_tizen> 6 </since_tizen>
  29     [Flags]
  30     public enum FindOption
  31     {
  32         /// <summary>
  33         /// No search flags, this means a case sensitive, no wrap, forward only search.
  34         /// </summary>
  35         None = 0,
  36         /// <summary>
  37         /// Case insensitive search.
  38         /// </summary>
  39         CaseInsensitive = 1 << 0,
  40         /// <summary>
  41         /// Search text only at the beginning of the words.
  42         /// </summary>
  43         AtWordStart = 1 << 1,
  44         /// <summary>
  45         /// Treat capital letters in the middle of words as word start.
  46         /// </summary>
  47         TreatMedialCapitalAsWordStart = 1 << 2,
  48         /// <summary>
  49         /// Search backwards.
  50         /// </summary>
  51         Backwards = 1 << 3,
  52         /// <summary>
  53         /// If not present the search stops at the end of the document.
  54         /// </summary>
  55         WrapAround = 1 << 4,
  56         /// <summary>
  57         /// Show overlay.
  58         /// </summary>
  59         ShowOverlay = 1 << 5,
  60         /// <summary>
  61         /// Show Indicator.
  62         /// </summary>
  63         ShowIndicator = 1 << 6,
  64         /// <summary>
  65         /// Show Highlight.
  66         /// </summary>
  67         ShowHighlight = 1 << 7,
  68     }
  69
  70     /// <summary>
  71     /// Enumeration for Http Method.
  72     /// </summary>
  73     /// <since_tizen> 6 </since_tizen>
  74     public enum HttpMethod
  75     {
  76         /// <summary>
  77         /// Get.
  78         /// </summary>
  79         Get,
  80         /// <summary>
  81         /// Head.
  82         /// </summary>
  83         Head,
  84         /// <summary>
  85         /// Post.
  86         /// </summary>
  87         Post,
  88         /// <summary>
  89         /// Put.
  90         /// </summary>
  91         Put,
  92         /// <summary>
  93         /// Delete.
  94         /// </summary>
  95         Delete,
  96     }
  97
  98     /// <summary>
  99     /// Enumeration for Orientation of the device.
 100     /// </summary>
 101     /// <since_tizen> 6 </since_tizen>
 102     public enum Orientation
 103     {
 104         /// <summary>
 105         /// 0 degrees when the device is oriented to natural position.
 106         /// </summary>
 107         Natural = 0,
 108         /// <summary>
 109         /// -90 degrees when it's left side is at the top.
 110         /// </summary>
 111         LeftAtTop = -90,
 112         /// <summary>
 113         /// 90 degrees when it's right side is at the top.
 114         /// </summary>
 115         RightAtTop = 90,
 116         /// <summary>
 117         /// 180 degrees when it is upside down.
 118         /// </summary>
 119         UpsideDown = 180,
 120     }
 121
 122     /// <summary>
 123     /// A view used to render the web contents.
 124     /// </summary>
 125     /// <since_tizen> 4 </since_tizen>
 126     public class WebView : EvasObject
 127     {
 128         private static IDictionary<string, JavaScriptMessageHandler> _javaScriptMessageHandlerMap = new Dictionary<string, JavaScriptMessageHandler>();
 129
 130         private IntPtr _handle;
 131         private IntPtr _realHandle;
 132         private Context _context;
 133         private Settings _settings;
 134
 135         // focus dummy
 136         private SmartEvent _focusIn;
 137         private SmartEvent _focusOut;
 138
 139         // Smart events
 140         private SmartEvent _loadStarted;
 141         private SmartEvent _loadFinished;
 142         private SmartEvent<SmartCallbackLoadErrorArgs> _loadError;
 143         private SmartEvent<SmartCallbackArgs> _titleChanged;
 144         private SmartEvent<SmartCallbackArgs> _urlChanged;
 145         private SmartEvent<NavigationPolicyEventArgs> _policyNavigationDecide;
 146         private SmartEvent<NewWindowPolicyEventArgs> _policyNewWindowDecide;
 147         private SmartEvent<ResponsePolicyEventArgs> _policyResponseDecide;
 148
 149         private SmartEvent<ContextMenuItemEventArgs> _contextMenuItemSelected;
 150         private SmartEvent<ContextMenuCustomizeEventArgs> _contextMenuCustomize;
 151
 152         private ContextMenuCustomize _contextMenuCustomizeDelegate;
 153
 154         /// <summary>
 155         /// Event that occurs when the load is started.
 156         /// </summary>
 157         /// <since_tizen> 4 </since_tizen>
 158         public event EventHandler LoadStarted;
 159
 160         /// <summary>
 161         /// Event that occurs when the load is finished.
 162         /// </summary>
 163         /// <since_tizen> 4 </since_tizen>
 164         public event EventHandler LoadFinished;
 165
 166         /// <summary>
 167         /// Event that occurs when the load throws an error.
 168         /// </summary>
 169         /// <since_tizen> 4 </since_tizen>
 170         public event EventHandler<SmartCallbackLoadErrorArgs> LoadError;
 171
 172         /// <summary>
 173         /// Event that occurs when the title of the main frame is changed.
 174         /// </summary>
 175         /// <since_tizen> 4 </since_tizen>
 176         public event EventHandler<SmartCallbackArgs> TitleChanged;
 177
 178         /// <summary>
 179         /// Event that occurs when the URL of the main frame is changed.
 180         /// </summary>
 181         /// <since_tizen> 4 </since_tizen>
 182         public event EventHandler<SmartCallbackArgs> UrlChanged;
 183
 184         /// <summary>
 185         /// Event that occurs when the policy navigation is decided.
 186         /// </summary>
 187         /// <since_tizen> 6 </since_tizen>
 188         public event EventHandler<NavigationPolicyEventArgs> NavigationPolicyDecideRequested;
 189
 190         /// <summary>
 191         /// Event that occurs when the policy new window is decided.
 192         /// </summary>
 193         /// <since_tizen> 6 </since_tizen>
 194         public event EventHandler<NewWindowPolicyEventArgs> NewWindowPolicyDecideRequested;
 195
 196         /// <summary>
 197         /// Event that occurs when the policy response is decided.
 198         /// </summary>
 199         /// <since_tizen> 6 </since_tizen>
 200         public event EventHandler<ResponsePolicyEventArgs> ResponsePolicyDecideRequested;
 201
 202         /// <summary>
 203         /// Event that occurs when the context menu item selected.
 204         /// </summary>
 205         /// <since_tizen> 6 </since_tizen>
 206         public event EventHandler<ContextMenuItemEventArgs> ContextMenuItemSelected;
 207
 208         /// <summary>
 209         /// The delegate is invoked when context menu customization is needed.
 210         /// </summary>
 211         /// <param name="menu">The instance of ContextMenu.</param>
 212         /// <since_tizen> 6 </since_tizen>
 213         public delegate void ContextMenuCustomize(ContextMenu menu);
 214
 215
 216         /// <summary>
 217         /// Current URL of the main frame.
 218         /// </summary>
 219         /// <since_tizen> 4 </since_tizen>
 220         public string Url
 221         {
 222             get
 223             {
 224                 return Interop.ChromiumEwk.ewk_view_url_get(_realHandle);
 225             }
 226         }
 227
 228         /// <summary>
 229         /// Current title of the main frame.
 230         /// </summary>
 231         /// <since_tizen> 4 </since_tizen>
 232         public string Title
 233         {
 234             get
 235             {
 236                 return Interop.ChromiumEwk.ewk_view_title_get(_realHandle);
 237             }
 238         }
 239
 240         /// <summary>
 241         /// Current user agent string of this view.
 242         /// </summary>
 243         /// <since_tizen> 4 </since_tizen>
 244         public string UserAgent
 245         {
 246             get
 247             {
 248                 return Interop.ChromiumEwk.ewk_view_user_agent_get(_realHandle);
 249             }
 250
 251             set
 252             {
 253                 Interop.ChromiumEwk.ewk_view_user_agent_set(_realHandle, value);
 254             }
 255         }
 256
 257         /// <summary>
 258         /// Whether a view has the focus.
 259         /// </summary>
 260         /// <since_tizen> 4 </since_tizen>
 261         public bool HasFocus
 262         {
 263             get
 264             {
 265                 return Interop.ChromiumEwk.ewk_view_focus_get(_realHandle);
 266             }
 267         }
 268
 269         /// <summary>
 270         /// Creates a WebView object.
 271         /// </summary>
 272         /// <param name="parent">Parent object of the WebView.</param>
 273         /// <since_tizen> 4 </since_tizen>
 274         public WebView(EvasObject parent) : base(parent)
 275         {
 276             InitializeSmartEvent();
 277         }
 278
 279         /// <summary>
 280         /// Gets the context object of this view.
 281         /// </summary>
 282         /// <returns>The context object of this view.</returns>
 283         /// <since_tizen> 4 </since_tizen>
 284         public Context GetContext()
 285         {
 286             if (_context == null)
 287             {
 288                 IntPtr contextHandle = Interop.ChromiumEwk.ewk_view_context_get(_realHandle);
 289                 if (contextHandle == IntPtr.Zero)
 290                 {
 291                     return null;
 292                 }
 293                 _context = new Context(contextHandle);
 294             }
 295             return _context;
 296         }
 297
 298         /// <summary>
 299         /// Gets the settings object of this view.
 300         /// </summary>
 301         /// <returns>The settings object of this view.</returns>
 302         /// <since_tizen> 4 </since_tizen>
 303         public Settings GetSettings()
 304         {
 305             if (_settings == null)
 306             {
 307                 IntPtr settingsHandle = Interop.ChromiumEwk.ewk_view_settings_get(_realHandle);
 308                 if (settingsHandle == IntPtr.Zero)
 309                 {
 310                     return null;
 311                 }
 312                 _settings = new Settings(settingsHandle);
 313             }
 314             return _settings;
 315         }
 316
 317         /// <summary>
 318         /// Gets the back/forward list object of this view.
 319         /// </summary>
 320         /// <returns>The BackForward List object of this view.</returns>
 321         /// <since_tizen> 6 </since_tizen>
 322         public BackForwardList GetBackForwardList()
 323         {
 324             IntPtr backforwardlistHandle = Interop.ChromiumEwk.ewk_view_back_forward_list_get(_realHandle);
 325             if (backforwardlistHandle == IntPtr.Zero)
 326             {
 327                 return null;
 328             }
 329             return new BackForwardList(backforwardlistHandle);
 330         }
 331
 332         /// <summary>
 333         /// Clear the back/forward list object of this view.
 334         /// </summary>
 335         /// <since_tizen> 6 </since_tizen>
 336         public void ClearBackForwardList()
 337         {
 338             Interop.ChromiumEwk.ewk_view_back_forward_list_clear(_realHandle);
 339         }
 340
 341         /// <summary>
 342         /// Asks the object to load the given URL.
 343         /// </summary>
 344         /// <remarks>
 345         /// You can only be sure that the URL changes after UrlChanged event.
 346         /// </remarks>
 347         /// <param name="url">The uniform resource identifier to load.</param>
 348         /// <since_tizen> 4 </since_tizen>
 349         public void LoadUrl(string url)
 350         {
 351             Interop.ChromiumEwk.ewk_view_url_set(_realHandle, url);
 352         }
 353
 354         /// <summary>
 355         /// Loads the specified HTML string as the content of the view.
 356         /// </summary>
 357         /// <param name="html">HTML data to load.</param>
 358         /// <param name="baseUrl">Base URL used for relative paths to external objects.</param>
 359         /// <since_tizen> 4 </since_tizen>
 360         public void LoadHtml(string html, string baseUrl)
 361         {
 362             Interop.ChromiumEwk.ewk_view_html_string_load(_realHandle, html, baseUrl, null);
 363         }
 364
 365         /// <summary>
 366         /// Asks the main frame to stop loading.
 367         /// </summary>
 368         /// <since_tizen> 4 </since_tizen>
 369         public void StopLoading()
 370         {
 371             Interop.ChromiumEwk.ewk_view_stop(_realHandle);
 372         }
 373
 374         /// <summary>
 375         /// Asks the main frame to reload the current document.
 376         /// </summary>
 377         /// <since_tizen> 4 </since_tizen>
 378         public void Reload()
 379         {
 380             Interop.ChromiumEwk.ewk_view_reload(_realHandle);
 381         }
 382
 383         /// <summary>
 384         /// Asks the main frame to navigate back in history.
 385         /// </summary>
 386         /// <since_tizen> 4 </since_tizen>
 387         public void GoBack()
 388         {
 389             Interop.ChromiumEwk.ewk_view_back(_realHandle);
 390         }
 391
 392         /// <summary>
 393         /// Asks the main frame to navigate forward in history.
 394         /// </summary>
 395         /// <since_tizen> 4 </since_tizen>
 396         public void GoForward()
 397         {
 398             Interop.ChromiumEwk.ewk_view_forward(_realHandle);
 399         }
 400
 401         /// <summary>
 402         /// Checks whether it is possible to navigate backward one item in history.
 403         /// </summary>
 404         /// <returns>Whether it is possible to navigate backward one item in history.</returns>
 405         /// <since_tizen> 4 </since_tizen>
 406         public bool CanGoBack()
 407         {
 408             return Interop.ChromiumEwk.ewk_view_back_possible(_realHandle);
 409         }
 410
 411         /// <summary>
 412         /// Checks whether it is possible to navigate forward one item in history.
 413         /// </summary>
 414         /// <returns>Whether it is possible to navigate forward one item in history.</returns>
 415         /// <since_tizen> 4 </since_tizen>
 416         public bool CanGoForward()
 417         {
 418             return Interop.ChromiumEwk.ewk_view_forward_possible(_realHandle);
 419         }
 420
 421         /// <summary>
 422         /// Injects the supplied javascript message handler into the view.
 423         /// </summary>
 424         /// <param name="name"> The message callback.</param>
 425         /// <param name="handler">The name used to expose the object in JavaScript.</param>
 426         /// <returns>'true' on success, otherwise 'false'.</returns>
 427         /// <since_tizen> 4 </since_tizen>
 428         public bool AddJavaScriptMessageHandler(string name, JavaScriptMessageHandler handler)
 429         {
 430             lock (_javaScriptMessageHandlerMap)
 431             {
 432                 if (_javaScriptMessageHandlerMap.ContainsKey(name))
 433                 {
 434                     return false;
 435                 }
 436                 _javaScriptMessageHandlerMap[name] = handler;
 437             }
 438             Interop.ChromiumEwk.ScriptMessageCallback callback = (handle, message) =>
 439             {
 440                 JavaScriptMessage convertedMessage = new JavaScriptMessage(message);
 441                 lock (_javaScriptMessageHandlerMap)
 442                 {
 443                     if (_javaScriptMessageHandlerMap.ContainsKey(convertedMessage.Name))
 444                     {
 445                         _javaScriptMessageHandlerMap[convertedMessage.Name](convertedMessage);
 446                     }
 447                 }
 448             };
 449             if (!Interop.ChromiumEwk.ewk_view_javascript_message_handler_add(_realHandle, callback, name))
 450             {
 451                 lock (_javaScriptMessageHandlerMap)
 452                 {
 453                     _javaScriptMessageHandlerMap.Remove(name);
 454                     return false;
 455                 }
 456             }
 457             return true;
 458         }
 459
 460         /// <summary>
 461         /// Requests the execution of a given name and the result to the JavaScript runtime.
 462         /// </summary>
 463         /// <param name="name">The name used to expose the object in JavaScript.</param>
 464         /// <param name="result">The result to the JavaScript runtime.</param>
 465         /// <since_tizen> 4 </since_tizen>
 466         public void EvalWithResult(string name, string result)
 467         {
 468             Interop.ChromiumEwk.ewk_view_evaluate_javascript(_realHandle, name, result);
 469         }
 470
 471         /// <summary>
 472         /// Requests the execution of the given script.
 473         /// </summary>
 474         /// <param name="script">The JavaScript code string to execute.</param>
 475         /// <since_tizen> 4 </since_tizen>
 476         public void Eval(string script)
 477         {
 478             Interop.ChromiumEwk.ewk_view_script_execute(_realHandle, script, null, IntPtr.Zero);
 479         }
 480
 481         /// <summary>
 482         /// Requests to set or unset a view as the currently focused one.
 483         /// </summary>
 484         /// <param name="focused">'true' to set the focus on the view, 'false' to remove the focus from the view.</param>
 485         /// <since_tizen> 4 </since_tizen>
 486         public void SetFocus(bool focused)
 487         {
 488             Interop.ChromiumEwk.ewk_view_focus_set(_realHandle, focused);
 489         }
 490
 491         /// <summary>
 492         /// Gets size of the content.
 493         /// </summary>
 494         /// <returns> size of the coordinate.</returns>
 495         /// <since_tizen> 6 </since_tizen>
 496         public Size ContentsSize
 497         {
 498             get
 499             {
 500                 int width, height;
 501                 Interop.ChromiumEwk.ewk_view_contents_size_get(_realHandle, out width, out height);
 502                 return new Size(width, height);
 503             }
 504         }
 505
 506         /// <summary>
 507         /// Exit full screen.
 508         /// </summary>
 509         /// <since_tizen> 6 </since_tizen>
 510         public void ExitFullscreen ()
 511         {
 512             Interop.ChromiumEwk.ewk_view_fullscreen_exit(_realHandle);
 513         }
 514
 515         /// <summary>
 516         /// Gets the current load progress of the page.
 517         /// </summary>
 518         /// <returns>'value 0.0 to 1.0' on success, otherwise '-1.0'.</returns>
 519         /// <since_tizen> 6 </since_tizen>
 520         public double LoadProgress
 521         {
 522             get
 523             {
 524                 return Interop.ChromiumEwk.ewk_view_load_progress_get(_realHandle);
 525             }
 526         }
 527
 528         /// <summary>
 529         /// Sends the orientation of the device.
 530         /// </summary>
 531         /// <param name="orientation">The new orientation of the device in degree.</param>
 532         /// <since_tizen> 6 </since_tizen>
 533         public void SendOrientation (Orientation orientation)
 534         {
 535             Interop.ChromiumEwk.ewk_view_orientation_send(_realHandle, orientation);
 536         }
 537
 538         /// <summary>
 539         /// Suspends the operation associated with the view.
 540         /// </summary>
 541         /// <since_tizen> 6 </since_tizen>
 542         public void Suspend ()
 543         {
 544             Interop.ChromiumEwk.ewk_view_suspend(_realHandle);
 545         }
 546
 547         /// <summary>
 548         /// Resumes the operation associated with the view.
 549         /// </summary>
 550         /// <since_tizen> 6 </since_tizen>
 551         public void Resume ()
 552         {
 553             Interop.ChromiumEwk.ewk_view_resume(_realHandle);
 554         }
 555
 556         /// <summary>
 557         /// Gets the current scale factor of the page.
 558         /// </summary>
 559         /// <since_tizen> 6 </since_tizen>
 560         public double Scale
 561         {
 562             get
 563             {
 564                 return Interop.ChromiumEwk.ewk_view_scale_get(_realHandle);
 565             }
 566         }
 567
 568         /// <summary>
 569         /// Sets the current scale factor of the page.
 570         /// </summary>
 571         /// <param name="scaleFactor">A new level to set.</param>
 572         /// <param name="scrollTo">The class Point object with X, Y coordinates.</param>
 573         /// <since_tizen> 6 </since_tizen>
 574         public void SetScale (double scaleFactor, Point scrollTo)
 575         {
 576             Interop.ChromiumEwk.ewk_view_scale_set(_realHandle, scaleFactor, scrollTo.X, scrollTo.Y);
 577         }
 578
 579         /// <summary>
 580         /// Sets the current page's visibility.
 581         /// </summary>
 582         /// <param name="enable">'true' to set on the visibility of the page, 'false' otherwise.</param>
 583         /// <since_tizen> 6 </since_tizen>
 584         public void SetViewVisibility (bool enable)
 585         {
 586             Interop.ChromiumEwk.ewk_view_visibility_set(_realHandle, enable);
 587         }
 588
 589         /// <summary>
 590         /// Get and Sets the scroll position of the page.
 591         /// </summary>
 592         /// <returns>The class Point object with X, Y coordinates.</returns>
 593         /// <since_tizen> 6 </since_tizen>
 594         public Point ScrollPosition
 595         {
 596             get
 597             {
 598                 Point p;
 599                 Interop.ChromiumEwk.ewk_view_scroll_pos_get(_realHandle, out p.X, out p.Y);
 600                 return p;
 601             }
 602             set
 603             {
 604                 Interop.ChromiumEwk.ewk_view_scroll_set(_realHandle, value.X, value.Y);
 605             }
 606         }
 607
 608         /// <summary>
 609         /// Scrolls the webpage by the given amount.
 610         /// </summary>
 611         /// <param name="delta">The class Point object with X, Y coordinates.</param>
 612         /// <since_tizen> 6 </since_tizen>
 613         public void ScrollBy (Point delta)
 614         {
 615             Interop.ChromiumEwk.ewk_view_scroll_by(_realHandle, delta.X, delta.Y);
 616         }
 617
 618         /// <summary>
 619         /// Searches and highlights the given text string in the document.
 620         /// </summary>
 621         /// <param name="text">The text to find.</param>
 622         /// <param name="option">The options to find.</param>
 623         /// <param name="maxMatchCount">The maximum match count to find, unlimited if 0.</param>
 624         /// <since_tizen> 6 </since_tizen>
 625         public void FindText (string text, FindOption option, int maxMatchCount)
 626         {
 627             Interop.ChromiumEwk.ewk_view_text_find(_realHandle, text, option, maxMatchCount);
 628         }
 629
 630         /// <summary>
 631         /// Requests loading of the given request data.
 632         /// </summary>
 633         /// <param name="url">The uniform resource identifier to load.</param>
 634         /// <param name="httpMethod">The http method.</param>
 635         /// <param name="httpHeaders">The http headers.</param>
 636         /// <param name="httpBody">The http body data.</param>
 637         /// <since_tizen> 6 </since_tizen>
 638         public void SetUrlRequest (string url, HttpMethod httpMethod, IDictionary<string, string> httpHeaders, string httpBody)
 639         {
 640             List<IntPtr> stringHandles = new List<IntPtr>();
 641             IntPtr hashHttpHeaders = Interop.Eina.eina_hash_string_small_new(IntPtr.Zero);
 642
 643             foreach (KeyValuePair<string, string> entry in httpHeaders)
 644             {
 645                 IntPtr keyHandle = Marshal.StringToHGlobalAnsi(entry.Key);
 646                 IntPtr valueHandle = Marshal.StringToHGlobalAnsi(entry.Value);
 647                 Interop.Eina.eina_hash_add(hashHttpHeaders, keyHandle, valueHandle);
 648                 stringHandles.Add(keyHandle);
 649                 stringHandles.Add(valueHandle);
 650              }
 651              Interop.ChromiumEwk.ewk_view_url_request_set(_realHandle, url, httpMethod, hashHttpHeaders, httpBody);
 652
 653              foreach(IntPtr handle in stringHandles)
 654              {
 655                  Marshal.FreeHGlobal(handle);
 656              }
 657         }
 658
 659         /// <summary>
 660         /// Creates a widget handle.
 661         /// </summary>
 662         /// <param name="parent">Parent EvasObject.</param>
 663         /// <returns>IntPtr of the widget handle.</returns>
 664         /// <since_tizen> 4 </since_tizen>
 665         protected override IntPtr CreateHandle(EvasObject parent)
 666         {
 667             // focus dummy
 668             _handle = Interop.Elementary.elm_layout_add((IntPtr)parent);
 669             Interop.Elementary.elm_layout_theme_set(_handle, "layout", "elm_widget", "default");
 670             Interop.Elementary.elm_object_focus_allow_set(_handle, true);
 671
 672             IntPtr evas = Interop.Evas.evas_object_evas_get(parent);
 673             _realHandle = Interop.ChromiumEwk.ewk_view_add(evas);
 674             Interop.Elementary.elm_object_part_content_set(_handle, "elm.swallow.content", _realHandle);
 675
 676             return _handle;
 677         }
 678
 679         /// <summary>
 680         /// Sets the delegate for context menu customization.
 681         /// </summary>
 682         /// <param name="contextMenuCustomizeDelegate">The delegate for context menu customization.</param>
 683         /// <since_tizen> 6 </since_tizen>
 684         public void SetContextMenuCustomizeDelegate(ContextMenuCustomize contextMenuCustomizeDelegate)
 685         {
 686             _contextMenuCustomizeDelegate = contextMenuCustomizeDelegate;
 687         }
 688
 689         private void InitializeSmartEvent()
 690         {
 691             // focus dummy
 692             _focusIn = new SmartEvent(this, "focused");
 693             _focusOut = new SmartEvent(this, "unfocused");
 694
 695             _focusIn.On += (s, e) => { ((WebView)s).SetFocus(true); };
 696             _focusOut.On += (s, e) => { ((WebView)s).SetFocus(false); };
 697
 698             _loadStarted = new SmartEvent(this, _realHandle, "load,started");
 699             _loadFinished = new SmartEvent(this, _realHandle, "load,finished");
 700             _loadError = new SmartEvent<SmartCallbackLoadErrorArgs>(this, _realHandle, "load,error", SmartCallbackLoadErrorArgs.CreateFromSmartEvent);
 701             _titleChanged = new SmartEvent<SmartCallbackArgs>(this, _realHandle, "title,changed", SmartCallbackArgs.CreateFromSmartEvent);
 702             _urlChanged = new SmartEvent<SmartCallbackArgs>(this, _realHandle, "url,changed", SmartCallbackArgs.CreateFromSmartEvent);
 703             _contextMenuCustomize = new SmartEvent<ContextMenuCustomizeEventArgs>(this, _realHandle, "contextmenu,customize", ContextMenuCustomizeEventArgs.CreateFromSmartEvent);
 704             _contextMenuItemSelected = new SmartEvent<ContextMenuItemEventArgs>(this, _realHandle, "contextmenu,selected", ContextMenuItemEventArgs.CreateFromSmartEvent);
 705             _policyNavigationDecide = new SmartEvent<NavigationPolicyEventArgs>(this, _realHandle, "policy,navigation,decide", NavigationPolicyEventArgs.CreateFromSmartEvent);
 706             _policyNewWindowDecide = new SmartEvent<NewWindowPolicyEventArgs>(this, _realHandle, "policy,newwindow,decide", NewWindowPolicyEventArgs.CreateFromSmartEvent);
 707             _policyResponseDecide = new SmartEvent<ResponsePolicyEventArgs>(this, _realHandle, "policy,response,decide", ResponsePolicyEventArgs.CreateFromSmartEvent);
 708
 709             _loadStarted.On += (s, e) => { LoadStarted?.Invoke(this, EventArgs.Empty); };
 710             _loadFinished.On += (s, e) => { LoadFinished?.Invoke(this, EventArgs.Empty); };
 711             _loadError.On += (s, e) => { LoadError?.Invoke(this, e); };
 712             _titleChanged.On += (s, e) => { TitleChanged?.Invoke(this, e); };
 713             _urlChanged.On += (s, e) => { UrlChanged?.Invoke(this, e); };
 714             _policyNavigationDecide.On += (s, e) => { NavigationPolicyDecideRequested?.Invoke(this, e); };
 715             _policyNewWindowDecide.On += (s, e) => { NewWindowPolicyDecideRequested?.Invoke(this, e); };
 716             _policyResponseDecide.On += (s, e) => { ResponsePolicyDecideRequested?.Invoke(this, e); };
 717             _contextMenuItemSelected.On += (s, e) => { ContextMenuItemSelected?.Invoke(this, e); };
 718             _contextMenuCustomize.On += (s, e) => { _contextMenuCustomizeDelegate?.Invoke(e.Menu); };
 719         }
 720
 721     }
 722 }