Reference TCustomWebBrowser

  TCustomWebBrowser = class(TWinControl, IWebBrowserEvents)
  protected
    class procedure WSRegisterClass; override;
    procedure InitializeWnd; override;
    procedure DestroyWnd; override;
    procedure Notification(AComponent: TComponent; Operation: TOperation); override;
    procedure PaintWindow(DC: HDC); override;
    procedure Paint; virtual;
    { HasView is true when the control hosts a web view, and false when it
      paints itself }
    function HasView: Boolean;
    { ControlCanvas is used to paint the control when it has no web view }
    property ControlCanvas: TControlCanvas read FCanvas;
    { The methods below are called in response to changes in the web view }
    procedure DoLoadStatus(Status: TWebLoadStatus); virtual;
    procedure DoError(const Uri: string; ErrorCode: Integer; const ErrorMessage: string; var Handled: Boolean); virtual;
    procedure DoProgress(Progress: Integer); virtual;
    procedure DoLocationChange(const Uri: string); virtual;
    procedure DoTitleChange(const Title: string); virtual;
    procedure DoNavigate(const Uri: string; var Action: TWebNavigateAction); virtual;
    procedure DoHitTest(HitTest: TWebHitTest; const Link, Media: string); virtual;
    procedure DoContextMenu(X, Y: Integer; HitTest: TWebHitTest; const Link, Media: string; var Handled: Boolean); virtual;
    procedure DoScriptDialog(Dialog: TWebScriptDialog; const Message: string; var Input: string; var Accepted: Boolean); virtual;
    { When Editable is true the page can be edited by the user }
    property Editable: Boolean read FEditable write SetEditable default False;
    { ZoomFactor can be used to increase or decrease the size of text or content }
    property ZoomFactor: Double read FZoomFactor write SetZoomFactor stored IsZoomFactorStored;
    { When ZoomTextOnly is true only text is resized by zoom factor }
    property ZoomTextOnly: Boolean read FZoomTextOnly write SetZoomTextOnly default False;
    { When DeveloperTools is true the inspector can be shown and an inspect item
      is added to the context menu }
    property DeveloperTools: Boolean read FDeveloperTools write SetDeveloperTools default False;
    { The folder files are downloaded to. When empty the download folder of the
      user is used. }
    property DownloadFolder: string read FDownloadFolder write FDownloadFolder;
    { OnDownloadStart is invoked before a file is downloaded }
    property OnDownloadStart: TWebDownloadStartEvent read FOnDownloadStart write FOnDownloadStart;
    { OnDownloadProgress is invoked as a download progresses }
    property OnDownloadProgress: TWebDownloadEvent read FOnDownloadProgress write FOnDownloadProgress;
    { OnDownloadFinish is invoked when a download finishes or fails }
    property OnDownloadFinish: TWebDownloadEvent read FOnDownloadFinish write FOnDownloadFinish;
    { OnError is invoked when a load fails }
    property OnError: TWebErrorEvent read FOnError write FOnError;
    { OnContextMenu is invoked when a context menu is about to be shown }
    property OnContextMenu: TWebContextMenuEvent read FOnContextMenu write FOnContextMenu;
    { OnHitTest is invoked when the element under the mouse changes }
    property OnHitTest: TWebHitTestEvent read FOnHitTest write FOnHitTest;
    { OnLoadStatusChange occurs when the loading status changes }
    property OnLoadStatusChange: TNotifyEvent read FOnLoadStatusChange write FOnLoadStatusChange;
    { OnLocationChange occurs when a new uri begins to load or is redirected }
    property OnLocationChange: TNotifyEvent read FOnLocationChange write FOnLocationChange;
    { OnTitleChange occurs when the title of the page changes }
    property OnTitleChange: TNotifyEvent read FOnTitleChange write FOnTitleChange;
    { OnNavigate is invoked before a navigation is followed }
    property OnNavigate: TWebNavigateEvent read FOnNavigate write FOnNavigate;
    { OnProgress is invoked as a load progresses }
    property OnProgress: TWebProgressEvent read FOnProgress write FOnProgress;
    { OnScriptDialog is invoked by javascript alert(), confirm(), and prompt()
      functions }
    property OnScriptDialog: TWebScriptDialogEvent read FOnScriptDialog write FOnScriptDialog;
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    { Available is true when the WebKitGTK library is installed }
    class function Available: Boolean;
    { Load content by navigating using a protocol such as http: file: or about: }
    procedure Load(const Uri: string);
    { Load content directly from an html string }
    procedure LoadHtml(const Html: string);
    { Stop a load in progress }
    procedure Stop;
    { Repeat the previously navigated uri request or html load }
    procedure Reload;
    { Insert a snippet of javascript into the page and execute it }
    procedure ExecuteScript(const Script: string);
    { Navigate back one step in history }
    procedure GoBack;
    { Navigate forward one step in history }
    procedure GoForward;
    { Query if it's possible to navigate back one step in history }
    function CanGoBack: Boolean;
    { Query if it's possible to navigate forward one step in history }
    function CanGoForward: Boolean;
    { Navigate back (negative) or forward (positive) a number of steps in
      history }
    procedure BackOrForward(Steps: Integer);
    { Query if it's possible to navigate back or forward a number of steps in
      history }
    function BackOrForwardExists(Steps: Integer): Boolean;
    { Show the inspector, which also sets DeveloperTools to true }
    procedure ShowInspector;
    { Close the inspector }
    procedure CloseInspector;
    { Query the title and uri of the page a number of steps back (negative) or
      forward (positive) in history }
    function HistoryItem(Steps: Integer; out Title, Uri: string): Boolean;
    { Download a file to the download folder }
    procedure Download(const Uri: string);
    { Cancel a download which is in progress }
    procedure CancelDownload(Download: TWebDownload);
    { Remove the downloads which are not in progress from the list of downloads }
    procedure ClearDownloads;
    { The folder files are downloaded to, which is the download folder of the
      user unless DownloadFolder is set }
    function ActiveDownloadFolder: string;
    { Show the print dialog for the page }
    procedure Print;
    { Capture an image of the visible page and place it on the clipboard. The
      image is captured in the background and is on the clipboard a moment after
      this method returns. }
    procedure CaptureToClipboard;
    { Add a listener which is notified of changes in the browser }
    procedure AddListener(Listener: TWebNotifyEvent);
    { Remove a listener }
    procedure RemoveListener(Listener: TWebNotifyEvent);
    { The inspector control associated with the browser, or nil if there is
      none. It is set when the WebBrowser property of an inspector control is
      set to the browser. }
    property Inspector: TWebInspector read FInspector;
    { The uri of the link under the mouse }
    property HoverLink: string read FHoverLink;
    { The number of downloads started by the browser }
    property DownloadCount: Integer read GetDownloadCount;
    { The downloads started by the browser, with the oldest first }
    property Downloads[Index: Integer]: TWebDownload read GetDownload;
    { The uri of the content being displayed }
    property Location: string read FLocation write SetLocation;
    { Html stores the last value passed to LoadHtml }
    property Html: string read FHtml;
    { HtmlDefined is true when the last load method invoked was LoadHtml }
    property HtmlDefined: Boolean read FHtmlDefined;
    { The status of the current load }
    property LoadStatus: TWebLoadStatus read FLoadStatus;
    { Loading is true while a load is in progress }
    property Loading: Boolean read GetLoading;
    { The progress of the current load ranging from 0 to 100 }
    property Progress: Integer read FProgress;
    { The title string extracted from a web page }
    property Title: string read FTitle;
  end;