mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-16 00:05:55 +01:00
569 lines
19 KiB
ObjectPascal
569 lines
19 KiB
ObjectPascal
// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
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// browser in Delphi applications.
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//
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// The original license of DCEF3 still applies to CEF4Delphi.
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//
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// For more information about CEF4Delphi visit :
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// https://www.briskbard.com/index.php?lang=en&pageid=cef
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//
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// Copyright © 2021 Salvador Diaz Fau. All rights reserved.
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//
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// ************************************************************************
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// ************ vvvv Original license and comments below vvvv *************
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// ************************************************************************
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(*
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* Delphi Chromium Embedded 3
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*
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* Usage allowed under the restrictions of the Lesser GNU General Public License
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* or alternatively the restrictions of the Mozilla Public License 1.1
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* Unit owner : Henri Gourvest <hgourvest@gmail.com>
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* Web site : http://www.progdigy.com
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* Repository : http://code.google.com/p/delphichromiumembedded/
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* Group : http://groups.google.com/group/delphichromiumembedded
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*
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* Embarcadero Technologies, Inc is not permitted to use or redistribute
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* this source code without explicit permission.
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*
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*)
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unit uCEFWindowComponent;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
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uses
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{$IFDEF DELPHI16_UP}
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{$IFDEF MSWINDOWS}WinApi.Windows,{$ENDIF} System.Classes,
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{$ELSE}
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{$IFDEF MSWINDOWS}Windows,{$ENDIF} Classes,
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{$IFDEF FPC}
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LCLProc, LCLType, LCLIntf, LResources, InterfaceBase,
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{$ENDIF}
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{$ENDIF}
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uCEFTypes, uCEFInterfaces, uCEFViewsFrameworkEvents, uCEFPanelComponent;
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type
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{$IFNDEF FPC}{$IFDEF DELPHI16_UP}[ComponentPlatformsAttribute(pidWin32 or pidWin64)]{$ENDIF}{$ENDIF}
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TCEFWindowComponent = class(TCEFPanelComponent, ICefWindowDelegateEvents)
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protected
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FWindow : ICefWindow;
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FWindowDlg : ICefWindowDelegate;
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// ICefWindowDelegateEvents
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FOnWindowCreated : TOnWindowCreatedEvent;
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FOnWindowDestroyed : TOnWindowDestroyedEvent;
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FOnGetParentWindow : TOnGetParentWindowEvent;
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FOnGetInitialBounds : TOnGetInitialBoundsEvent;
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FOnIsFrameless : TOnIsFramelessEvent;
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FOnCanResize : TOnCanResizeEvent;
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FOnCanMaximize : TOnCanMaximizeEvent;
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FOnCanMinimize : TOnCanMinimizeEvent;
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FOnCanClose : TOnCanCloseEvent;
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FOnAccelerator : TOnAcceleratorEvent;
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FOnKeyEvent : TOnWindowKeyEventEvent;
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procedure DestroyView; override;
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procedure Initialize; override;
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function GetInitialized : boolean; override;
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function GetAsView : ICefView; override;
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function GetAsPanel : ICefPanel; override;
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function GetAsWindow : ICefWindow; override;
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function GetIsClosed : boolean;
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function GetIsActive : boolean;
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function GetIsAlwaysOnTop : boolean;
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function GetIsMaximized : boolean;
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function GetIsMinimized : boolean;
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function GetIsFullscreen : boolean;
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function GetTitle : ustring;
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function GetWindowIcon : ICefImage;
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function GetWindowAppIcon : ICefImage;
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function GetDisplay : ICefDisplay;
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function GetClientAreaBoundsInScreen : TCefRect;
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function GetWindowHandle : TCefWindowHandle;
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procedure SetAlwaysOnTop(on_top: boolean);
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procedure SetFullscreen(fullscreen: boolean);
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procedure SetTitle(const title_: ustring);
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procedure SetWindowIcon(const image: ICefImage);
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procedure SetWindowAppIcon(const image: ICefImage);
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// ICefWindowDelegateEvents
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procedure doOnWindowCreated(const window_: ICefWindow);
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procedure doOnWindowDestroyed(const window_: ICefWindow);
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procedure doOnGetParentWindow(const window_: ICefWindow; var is_menu, can_activate_menu: boolean; var aResult : ICefWindow);
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procedure doOnGetInitialBounds(const window_: ICefWindow; var aResult : TCefRect);
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procedure doOnIsFrameless(const window_: ICefWindow; var aResult : boolean);
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procedure doOnCanResize(const window_: ICefWindow; var aResult : boolean);
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procedure doOnCanMaximize(const window_: ICefWindow; var aResult : boolean);
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procedure doOnCanMinimize(const window_: ICefWindow; var aResult : boolean);
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procedure doOnCanClose(const window_: ICefWindow; var aResult : boolean);
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procedure doOnAccelerator(const window_: ICefWindow; command_id: Integer; var aResult : boolean);
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procedure doOnKeyEvent(const window_: ICefWindow; const event: TCefKeyEvent; var aResult : boolean);
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// ICefViewDelegateEvents
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procedure doCreateCustomView; override;
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public
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procedure CreateTopLevelWindow;
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procedure Show;
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procedure Hide;
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procedure CenterWindow(const size_: TCefSize);
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procedure Close;
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procedure Activate;
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procedure Deactivate;
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procedure BringToTop;
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procedure Maximize;
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procedure Minimize;
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procedure Restore;
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procedure ShowMenu(const menu_model: ICefMenuModel; const screen_point: TCefPoint; anchor_position : TCefMenuAnchorPosition);
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procedure CancelMenu;
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procedure SetDraggableRegions(regionsCount: NativeUInt; const regions: PCefDraggableRegionArray);
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procedure SendKeyPress(key_code: Integer; event_flags: cardinal);
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procedure SendMouseMove(screen_x, screen_y: Integer);
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procedure SendMouseEvents(button: TCefMouseButtonType; mouse_down, mouse_up: boolean);
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procedure SetAccelerator(command_id, key_code : Integer; shift_pressed, ctrl_pressed, alt_pressed: boolean);
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procedure RemoveAccelerator(command_id: Integer);
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procedure RemoveAllAccelerators;
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property Title : ustring read GetTitle write SetTitle;
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property WindowIcon : ICefImage read GetWindowIcon write SetWindowIcon;
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property WindowAppIcon : ICefImage read GetWindowAppIcon write SetWindowAppIcon;
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property Display : ICefDisplay read GetDisplay;
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property ClientAreaBoundsInScreen : TCefRect read GetClientAreaBoundsInScreen;
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property WindowHandle : TCefWindowHandle read GetWindowHandle;
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property IsClosed : boolean read GetIsClosed;
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property IsActive : boolean read GetIsActive;
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property IsAlwaysOnTop : boolean read GetIsAlwaysOnTop write SetAlwaysOnTop;
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property IsFullscreen : boolean read GetIsFullscreen write SetFullscreen;
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property IsMaximized : boolean read GetIsMaximized;
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property IsMinimized : boolean read GetIsMinimized;
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published
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property OnWindowCreated : TOnWindowCreatedEvent read FOnWindowCreated write FOnWindowCreated;
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property OnWindowDestroyed : TOnWindowDestroyedEvent read FOnWindowDestroyed write FOnWindowDestroyed;
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property OnGetParentWindow : TOnGetParentWindowEvent read FOnGetParentWindow write FOnGetParentWindow;
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property OnGetInitialBounds : TOnGetInitialBoundsEvent read FOnGetInitialBounds write FOnGetInitialBounds;
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property OnIsFrameless : TOnIsFramelessEvent read FOnIsFrameless write FOnIsFrameless;
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property OnCanResize : TOnCanResizeEvent read FOnCanResize write FOnCanResize;
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property OnCanMaximize : TOnCanMaximizeEvent read FOnCanMaximize write FOnCanMaximize;
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property OnCanMinimize : TOnCanMinimizeEvent read FOnCanMinimize write FOnCanMinimize;
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property OnCanClose : TOnCanCloseEvent read FOnCanClose write FOnCanClose;
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property OnAccelerator : TOnAcceleratorEvent read FOnAccelerator write FOnAccelerator;
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property OnKeyEvent : TOnWindowKeyEventEvent read FOnKeyEvent write FOnKeyEvent;
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end;
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{$IFDEF FPC}
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procedure Register;
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{$ENDIF}
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// *********************************************************
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// ********************** ATTENTION ! **********************
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// *********************************************************
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// ** **
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// ** MANY OF THE EVENTS IN CEF4DELPHI COMPONENTS LIKE **
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// ** TCHROMIUM, TFMXCHROMIUM OR TCEFAPPLICATION ARE **
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// ** EXECUTED IN A CEF THREAD BY DEFAULT. **
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// ** **
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// ** WINDOWS CONTROLS MUST BE CREATED AND DESTROYED IN **
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// ** THE SAME THREAD TO AVOID ERRORS. **
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// ** SOME OF THEM RECREATE THE HANDLERS IF THEY ARE **
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// ** MODIFIED AND CAN CAUSE THE SAME ERRORS. **
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// ** **
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// ** DON'T CREATE, MODIFY OR DESTROY WINDOWS CONTROLS **
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// ** INSIDE THE CEF4DELPHI EVENTS AND USE **
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// ** SYNCHRONIZATION OBJECTS TO PROTECT VARIABLES AND **
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// ** FIELDS IF THEY ARE ALSO USED IN THE MAIN THREAD. **
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// ** **
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// ** READ THIS FOR MORE INFORMATION : **
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// ** https://www.briskbard.com/index.php?pageid=cef **
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// ** **
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// ** USE OUR FORUMS FOR MORE QUESTIONS : **
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// ** https://www.briskbard.com/forum/ **
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// ** **
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// *********************************************************
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// *********************************************************
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implementation
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uses
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uCEFMiscFunctions, uCEFWindowDelegate, uCEFWindow, uCEFTask;
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procedure TCEFWindowComponent.Initialize;
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begin
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inherited Initialize;
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FWindow := nil;
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FWindowDlg := nil;
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FOnWindowCreated := nil;
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FOnWindowDestroyed := nil;
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FOnGetParentWindow := nil;
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FOnGetInitialBounds := nil;
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FOnIsFrameless := nil;
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FOnCanResize := nil;
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FOnCanMaximize := nil;
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FOnCanMinimize := nil;
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FOnCanClose := nil;
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FOnAccelerator := nil;
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FOnKeyEvent := nil;
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end;
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procedure TCEFWindowComponent.CreateTopLevelWindow;
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begin
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CreateView;
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end;
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procedure TCEFWindowComponent.doCreateCustomView;
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var
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TempWindow : ICefWindow;
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begin
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if (FWindow = nil) then
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begin
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if (FWindowDlg = nil) then
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FWindowDlg := TCustomWindowDelegate.Create(self);
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TempWindow := TCefWindowRef.CreateTopLevel(FWindowDlg);
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if (FWindow = nil) then FWindow := TempWindow;
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end;
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end;
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procedure TCEFWindowComponent.DestroyView;
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begin
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if (FWindowDlg <> nil) then
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begin
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FWindowDlg.DestroyOtherRefs;
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FWindowDlg := nil;
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end;
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FWindow := nil;
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end;
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function TCEFWindowComponent.GetInitialized : boolean;
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begin
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Result := (FWindow <> nil);
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end;
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function TCEFWindowComponent.GetAsView : ICefView;
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begin
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Result := FWindow as ICefView;
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end;
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function TCEFWindowComponent.GetAsPanel : ICefPanel;
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begin
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if Initialized then
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Result := FWindow as ICefPanel
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else
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Result := nil;
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end;
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function TCEFWindowComponent.GetAsWindow : ICefWindow;
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begin
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Result := FWindow;
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end;
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procedure TCEFWindowComponent.doOnWindowCreated(const window_: ICefWindow);
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begin
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if (FWindow = nil) then FWindow := window_;
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if assigned(FOnWindowCreated) then
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FOnWindowCreated(self, window_);
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end;
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procedure TCEFWindowComponent.doOnWindowDestroyed(const window_: ICefWindow);
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begin
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if assigned(FOnWindowDestroyed) then
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FOnWindowDestroyed(self, window_);
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FWindow := nil;
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end;
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procedure TCEFWindowComponent.doOnGetParentWindow(const window_: ICefWindow; var is_menu, can_activate_menu: boolean; var aResult : ICefWindow);
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begin
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if assigned(FOnGetParentWindow) then
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FOnGetParentWindow(self, window_, is_menu, can_activate_menu, aResult);
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end;
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procedure TCEFWindowComponent.doOnGetInitialBounds(const window_: ICefWindow; var aResult : TCefRect);
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begin
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if assigned(FOnGetInitialBounds) then
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FOnGetInitialBounds(self, window_, aResult);
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end;
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procedure TCEFWindowComponent.doOnIsFrameless(const window_: ICefWindow; var aResult : boolean);
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begin
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if assigned(FOnIsFrameless) then
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FOnIsFrameless(self, window_, aResult);
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end;
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procedure TCEFWindowComponent.doOnCanResize(const window_: ICefWindow; var aResult : boolean);
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begin
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if assigned(FOnCanResize) then
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FOnCanResize(self, window_, aResult);
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end;
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procedure TCEFWindowComponent.doOnCanMaximize(const window_: ICefWindow; var aResult : boolean);
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begin
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if assigned(FOnCanMaximize) then
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FOnCanMaximize(self, window_, aResult);
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end;
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procedure TCEFWindowComponent.doOnCanMinimize(const window_: ICefWindow; var aResult : boolean);
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begin
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if assigned(FOnCanMinimize) then
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FOnCanMinimize(self, window_, aResult);
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end;
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procedure TCEFWindowComponent.doOnCanClose(const window_: ICefWindow; var aResult : boolean);
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begin
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if assigned(FOnCanClose) then
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FOnCanClose(self, window_, aResult);
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end;
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procedure TCEFWindowComponent.doOnAccelerator(const window_: ICefWindow; command_id: Integer; var aResult : boolean);
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begin
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if assigned(FOnAccelerator) then
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FOnAccelerator(self, window_, command_id, aResult);
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end;
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procedure TCEFWindowComponent.doOnKeyEvent(const window_: ICefWindow; const event: TCefKeyEvent; var aResult : boolean);
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begin
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if assigned(FOnKeyEvent) then
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FOnKeyEvent(self, window_, event, aResult);
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end;
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procedure TCEFWindowComponent.Show;
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begin
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if Initialized then FWindow.Show;
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end;
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procedure TCEFWindowComponent.Hide;
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begin
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if Initialized then FWindow.Hide;
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end;
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procedure TCEFWindowComponent.CenterWindow(const size_: TCefSize);
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begin
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if Initialized then FWindow.CenterWindow(size_);
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end;
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procedure TCEFWindowComponent.Close;
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begin
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if Initialized then FWindow.Close;
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end;
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function TCEFWindowComponent.GetIsClosed : boolean;
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begin
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Result := Initialized and FWindow.IsClosed;
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end;
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procedure TCEFWindowComponent.Activate;
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begin
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if Initialized then FWindow.Activate;
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end;
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procedure TCEFWindowComponent.Deactivate;
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begin
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if Initialized then FWindow.Deactivate;
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end;
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function TCEFWindowComponent.GetIsActive : boolean;
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begin
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Result := Initialized and FWindow.IsActive;
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end;
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procedure TCEFWindowComponent.BringToTop;
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begin
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if Initialized then FWindow.BringToTop;
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end;
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procedure TCEFWindowComponent.SetAlwaysOnTop(on_top: boolean);
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begin
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if Initialized then FWindow.SetAlwaysOnTop(on_top);
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end;
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function TCEFWindowComponent.GetIsAlwaysOnTop : boolean;
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begin
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Result := Initialized and FWindow.IsAlwaysOnTop;
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end;
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procedure TCEFWindowComponent.Maximize;
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begin
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if Initialized then FWindow.Maximize;
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end;
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procedure TCEFWindowComponent.Minimize;
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begin
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if Initialized then FWindow.Minimize;
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end;
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procedure TCEFWindowComponent.Restore;
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begin
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if Initialized then FWindow.Restore;
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end;
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procedure TCEFWindowComponent.SetFullscreen(fullscreen: boolean);
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begin
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if Initialized then FWindow.SetFullscreen(fullscreen);
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end;
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function TCEFWindowComponent.GetIsMaximized : boolean;
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begin
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Result := Initialized and FWindow.IsMaximized;
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end;
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function TCEFWindowComponent.GetIsMinimized : boolean;
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begin
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Result := Initialized and FWindow.IsMinimized;
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end;
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function TCEFWindowComponent.GetIsFullscreen : boolean;
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begin
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Result := Initialized and FWindow.IsFullscreen;
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end;
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procedure TCEFWindowComponent.SetTitle(const title_: ustring);
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begin
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if Initialized then FWindow.SetTitle(title_);
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end;
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function TCEFWindowComponent.GetTitle : ustring;
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begin
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if Initialized then
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Result := FWindow.GetTitle
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else
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Result := '';
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end;
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procedure TCEFWindowComponent.SetWindowIcon(const image: ICefImage);
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begin
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if Initialized then FWindow.SetWindowIcon(image);
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end;
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function TCEFWindowComponent.GetWindowIcon : ICefImage;
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begin
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if Initialized then
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Result := FWindow.GetWindowIcon
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else
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Result := nil;
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end;
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procedure TCEFWindowComponent.SetWindowAppIcon(const image: ICefImage);
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begin
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if Initialized then FWindow.SetWindowAppIcon(image);
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end;
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function TCEFWindowComponent.GetWindowAppIcon : ICefImage;
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begin
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if Initialized then
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Result := FWindow.GetWindowAppIcon
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else
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Result := nil;
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end;
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procedure TCEFWindowComponent.ShowMenu(const menu_model: ICefMenuModel; const screen_point: TCefPoint; anchor_position : TCefMenuAnchorPosition);
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begin
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if Initialized then FWindow.ShowMenu(menu_model, screen_point, anchor_position);
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end;
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procedure TCEFWindowComponent.CancelMenu;
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begin
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if Initialized then FWindow.CancelMenu;
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end;
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function TCEFWindowComponent.GetDisplay : ICefDisplay;
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begin
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if Initialized then
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Result := FWindow.GetDisplay
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else
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Result := nil;
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end;
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function TCEFWindowComponent.GetClientAreaBoundsInScreen : TCefRect;
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var
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TempRect : TCefRect;
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begin
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if Initialized then
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TempRect := FWindow.GetClientAreaBoundsInScreen
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else
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begin
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TempRect.x := 0;
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TempRect.y := 0;
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TempRect.width := 0;
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TempRect.height := 0;
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end;
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Result := TempRect;
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end;
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procedure TCEFWindowComponent.SetDraggableRegions(regionsCount: NativeUInt; const regions: PCefDraggableRegionArray);
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begin
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if Initialized then FWindow.SetDraggableRegions(regionsCount, regions);
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|
end;
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|
|
|
function TCEFWindowComponent.GetWindowHandle : TCefWindowHandle;
|
|
var
|
|
TempHandle : TCefWindowHandle;
|
|
begin
|
|
InitializeWindowHandle(TempHandle);
|
|
if Initialized then TempHandle := FWindow.GetWindowHandle;
|
|
Result := TempHandle;
|
|
end;
|
|
|
|
procedure TCEFWindowComponent.SendKeyPress(key_code: Integer; event_flags: cardinal);
|
|
begin
|
|
if Initialized then FWindow.SendKeyPress(key_code, event_flags);
|
|
end;
|
|
|
|
procedure TCEFWindowComponent.SendMouseMove(screen_x, screen_y: Integer);
|
|
begin
|
|
if Initialized then FWindow.SendMouseMove(screen_x, screen_y);
|
|
end;
|
|
|
|
procedure TCEFWindowComponent.SendMouseEvents(button: TCefMouseButtonType; mouse_down, mouse_up: boolean);
|
|
begin
|
|
if Initialized then FWindow.SendMouseEvents(button, mouse_down, mouse_up);
|
|
end;
|
|
|
|
procedure TCEFWindowComponent.SetAccelerator(command_id, key_code : Integer; shift_pressed, ctrl_pressed, alt_pressed: boolean);
|
|
begin
|
|
if Initialized then FWindow.SetAccelerator(command_id, key_code, shift_pressed, ctrl_pressed, alt_pressed);
|
|
end;
|
|
|
|
procedure TCEFWindowComponent.RemoveAccelerator(command_id: Integer);
|
|
begin
|
|
if Initialized then FWindow.RemoveAccelerator(command_id);
|
|
end;
|
|
|
|
procedure TCEFWindowComponent.RemoveAllAccelerators;
|
|
begin
|
|
if Initialized then FWindow.RemoveAllAccelerators;
|
|
end;
|
|
|
|
{$IFDEF FPC}
|
|
procedure Register;
|
|
begin
|
|
{$I res/tcefwindowcomponent.lrs}
|
|
RegisterComponents('Chromium Views Framework', [TCEFWindowComponent]);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
end.
|