mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-16 16:25:57 +01:00
1108 lines
39 KiB
ObjectPascal
1108 lines
39 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 © 2020 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 uBrowserFrame;
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{$I cef.inc}
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interface
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uses
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Winapi.Windows, System.SysUtils, System.Types, System.UITypes, System.Classes,
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System.Variants, FMX.Types, {$IFDEF DELPHI17_UP}FMX.Graphics,{$ENDIF}
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System.SyncObjs, FMX.Controls, FMX.Forms, FMX.Dialogs, FMX.StdCtrls,
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FMX.Edit, FMX.Layouts, FMX.Controls.Presentation, FMX.TabControl,
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uCEFChromiumCore, uCEFFMXChromium, uCEFFMXWindowParent, uCEFInterfaces,
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uCEFTypes, uCEFConstants, uCEFFMXBufferPanel;
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type
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TBrowserTitleEvent = procedure(Sender: TObject; const aTitle : string) of object;
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TBrowserFrame = class(TFrame)
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FMXChromium1: TFMXChromium;
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StatusBar: TStatusBar;
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StatusLbl: TLabel;
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AddressLay: TLayout;
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GoBtn: TSpeedButton;
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NavButtonLay: TLayout;
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BackBtn: TSpeedButton;
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ForwardBtn: TSpeedButton;
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ReloadBtn: TSpeedButton;
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StopBtn: TSpeedButton;
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URLEdt: TEdit;
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FMXBufferPanel1: TFMXBufferPanel;
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procedure BackBtnClick(Sender: TObject);
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procedure ForwardBtnClick(Sender: TObject);
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procedure ReloadBtnClick(Sender: TObject);
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procedure StopBtnClick(Sender: TObject);
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procedure GoBtnClick(Sender: TObject);
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procedure FMXBufferPanel1Enter(Sender: TObject);
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procedure FMXBufferPanel1Exit(Sender: TObject);
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procedure FMXBufferPanel1Resize(Sender: TObject);
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procedure FMXBufferPanel1Click(Sender: TObject);
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procedure FMXBufferPanel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
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procedure FMXBufferPanel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
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procedure FMXBufferPanel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Single);
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procedure FMXBufferPanel1MouseLeave(Sender: TObject);
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procedure FMXBufferPanel1MouseWheel(Sender: TObject; Shift: TShiftState; WheelDelta: Integer; var Handled: Boolean);
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procedure FMXBufferPanel1KeyUp(Sender: TObject; var Key: Word; var KeyChar: Char; Shift: TShiftState);
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procedure FMXBufferPanel1KeyDown(Sender: TObject; var Key: Word; var KeyChar: Char; Shift: TShiftState);
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procedure FMXChromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
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procedure FMXChromium1BeforeClose(Sender: TObject; const browser: ICefBrowser);
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procedure FMXChromium1BeforePopup(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const targetUrl, targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; const popupFeatures: TCefPopupFeatures; var windowInfo: TCefWindowInfo; var client: ICefClient; var settings: TCefBrowserSettings; var extra_info: ICefDictionaryValue; var noJavascriptAccess, Result: Boolean);
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procedure FMXChromium1CursorChange(Sender: TObject; const browser: ICefBrowser; cursor: HICON; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo);
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procedure FMXChromium1GetScreenInfo(Sender: TObject; const browser: ICefBrowser; var screenInfo: TCefScreenInfo; out Result: Boolean);
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procedure FMXChromium1GetScreenPoint(Sender: TObject; const browser: ICefBrowser; viewX, viewY: Integer; var screenX, screenY: Integer; out Result: Boolean);
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procedure FMXChromium1GetViewRect(Sender: TObject; const browser: ICefBrowser; var rect: TCefRect);
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procedure FMXChromium1Paint(Sender: TObject; const browser: ICefBrowser; type_: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; width, height: Integer);
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procedure FMXChromium1PopupShow(Sender: TObject; const browser: ICefBrowser; show: Boolean);
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procedure FMXChromium1PopupSize(Sender: TObject; const browser: ICefBrowser; const rect: PCefRect);
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procedure FMXChromium1Tooltip(Sender: TObject; const browser: ICefBrowser; var text: ustring; out Result: Boolean);
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procedure FMXChromium1TitleChange(Sender: TObject; const browser: ICefBrowser; const title: ustring);
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procedure FMXChromium1OpenUrlFromTab(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; out Result: Boolean);
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procedure FMXChromium1AddressChange(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const url: ustring);
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procedure FMXChromium1LoadError(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; errorCode: Integer; const errorText, failedUrl: ustring);
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procedure FMXChromium1LoadingStateChange(Sender: TObject; const browser: ICefBrowser; isLoading, canGoBack, canGoForward: Boolean);
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procedure FMXChromium1StatusMessage(Sender: TObject; const browser: ICefBrowser; const value: ustring);
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protected
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FPopUpBitmap : TBitmap;
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FPopUpRect : TRect;
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FShowPopUp : boolean;
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FResizing : boolean;
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FPendingResize : boolean;
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FResizeCS : TCriticalSection;
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FAtLeastWin8 : boolean;
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FClosing : boolean; // Indicates that this frame is destroying the browser
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FHomepage : string; // Used to set the TChromium.DefaultURL property
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FOnBrowserDestroyed : TNotifyEvent;
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FOnBrowserNeedsResize : TNotifyEvent;
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FOnBrowserTitleChange : TBrowserTitleEvent;
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FLastClickCount : integer;
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FLastClickTime : integer;
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FLastClickPoint : TPointF;
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FLastClickButton : TMouseButton;
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function GetParentForm : TCustomForm;
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function GetParentTab : TTabItem;
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function getModifiers(Shift: TShiftState): TCefEventFlags;
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function GetButton(Button: TMouseButton): TCefMouseButtonType;
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function GetMousePosition(var aPoint : TPointF) : boolean;
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procedure InitializeLastClick;
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function CancelPreviousClick(const x, y : single; var aCurrentTime : integer) : boolean;
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{$IFDEF MSWINDOWS}
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function PostFormMessage(aMsg : cardinal; aWParam : WPARAM = 0; aLParam : LPARAM = 0) : boolean;
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function ArePointerEventsSupported : boolean;
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function HandlePenEvent(const aID : uint32; aMsg : cardinal) : boolean;
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function HandleTouchEvent(const aID : uint32; aMsg : cardinal) : boolean; overload;
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function HandlePointerEvent(const aMessage : TMsg) : boolean;
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{$ENDIF}
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public
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constructor Create(AOwner : TComponent); override;
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destructor Destroy; override;
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procedure NotifyMoveOrResizeStarted;
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procedure SendCaptureLostEvent;
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{$IFDEF MSWINDOWS}
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procedure HandleSYSCHAR(const aMessage : TMsg);
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procedure HandleSYSKEYDOWN(const aMessage : TMsg);
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procedure HandleSYSKEYUP(const aMessage : TMsg);
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function HandlePOINTER(const aMessage : TMsg) : boolean;
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{$ENDIF}
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procedure CreateBrowser;
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procedure CloseBrowser;
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procedure ResizeBrowser;
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procedure FocusBrowser;
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property ParentForm : TCustomForm read GetParentForm;
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property ParentTab : TTabItem read GetParentTab;
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property Closing : boolean read FClosing;
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property Homepage : string read FHomepage write FHomepage;
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property OnBrowserDestroyed : TNotifyEvent read FOnBrowserDestroyed write FOnBrowserDestroyed;
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property OnBrowserTitleChange : TBrowserTitleEvent read FOnBrowserTitleChange write FOnBrowserTitleChange;
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property OnBrowserNeedsResize : TNotifyEvent read FOnBrowserNeedsResize write FOnBrowserNeedsResize;
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end;
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implementation
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{$R *.fmx}
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uses
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FMX.Platform, {$IFDEF MSWINDOWS}FMX.Platform.Win,{$ENDIF} System.Math,
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uCEFMiscFunctions, uCEFApplication, uBrowserTab, uMainForm;
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procedure TBrowserFrame.BackBtnClick(Sender: TObject);
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begin
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FMXChromium1.GoBack;
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end;
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constructor TBrowserFrame.Create(AOwner : TComponent);
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var
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TempMajorVer, TempMinorVer : DWORD;
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begin
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inherited Create(AOwner);
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FClosing := False;
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FHomepage := '';
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FOnBrowserDestroyed := nil;
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FOnBrowserTitleChange := nil;
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FPopUpBitmap := nil;
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FPopUpRect := rect(0, 0, 0, 0);
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FShowPopUp := False;
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FResizing := False;
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FPendingResize := False;
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FClosing := False;
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FResizeCS := TCriticalSection.Create;
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FAtLeastWin8 := GetWindowsMajorMinorVersion(TempMajorVer, TempMinorVer) and
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((TempMajorVer > 6) or
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((TempMajorVer = 6) and (TempMinorVer >= 2)));
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InitializeLastClick;
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end;
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destructor TBrowserFrame.Destroy;
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begin
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FResizeCS.Free;
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if (FPopUpBitmap <> nil) then FreeAndNil(FPopUpBitmap);
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inherited Destroy;
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end;
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procedure TBrowserFrame.ReloadBtnClick(Sender: TObject);
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begin
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FMXChromium1.Reload;
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end;
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procedure TBrowserFrame.FocusBrowser;
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begin
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FMXBufferPanel1.SetFocus;
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end;
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procedure TBrowserFrame.ResizeBrowser;
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begin
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try
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if (FResizeCS <> nil) then
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begin
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FResizeCS.Acquire;
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if FResizing then
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FPendingResize := True
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else
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if FMXBufferPanel1.BufferIsResized then
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FMXChromium1.Invalidate(PET_VIEW)
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else
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begin
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FResizing := True;
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FMXChromium1.WasResized;
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end;
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end;
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finally
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if (FResizeCS <> nil) then FResizeCS.Release;
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end;
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end;
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procedure TBrowserFrame.NotifyMoveOrResizeStarted;
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begin
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FMXChromium1.NotifyMoveOrResizeStarted;
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end;
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procedure TBrowserFrame.SendCaptureLostEvent;
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begin
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FMXChromium1.SendCaptureLostEvent;
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end;
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procedure TBrowserFrame.StopBtnClick(Sender: TObject);
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begin
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FMXChromium1.StopLoad;
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end;
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procedure TBrowserFrame.FMXBufferPanel1Click(Sender: TObject);
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begin
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FocusBrowser;
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end;
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procedure TBrowserFrame.FMXBufferPanel1Enter(Sender: TObject);
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begin
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FMXChromium1.SendFocusEvent(True);
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end;
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procedure TBrowserFrame.FMXBufferPanel1Exit(Sender: TObject);
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begin
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FMXChromium1.SendFocusEvent(False);
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end;
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procedure TBrowserFrame.FMXBufferPanel1KeyDown(Sender: TObject; var Key: Word;
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var KeyChar: Char; Shift: TShiftState);
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var
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TempKeyEvent : TCefKeyEvent;
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begin
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if not(FMXBufferPanel1.IsFocused) then exit;
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if (Key <> 0) and (KeyChar = #0) then
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begin
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TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
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TempKeyEvent.modifiers := getModifiers(Shift);
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TempKeyEvent.windows_key_code := Key;
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TempKeyEvent.native_key_code := 0;
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TempKeyEvent.is_system_key := ord(False);
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TempKeyEvent.character := #0;
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TempKeyEvent.unmodified_character := #0;
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TempKeyEvent.focus_on_editable_field := ord(False);
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FMXChromium1.SendKeyEvent(@TempKeyEvent);
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if (Key in [VK_LEFT, VK_RIGHT, VK_UP, VK_DOWN, VK_TAB]) then Key := 0;
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1KeyUp(Sender: TObject; var Key: Word;
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var KeyChar: Char; Shift: TShiftState);
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var
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TempKeyEvent : TCefKeyEvent;
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begin
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if not(FMXBufferPanel1.IsFocused) then exit;
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if (Key = 0) and (KeyChar <> #0) then
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begin
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TempKeyEvent.kind := KEYEVENT_CHAR;
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TempKeyEvent.modifiers := getModifiers(Shift);
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TempKeyEvent.windows_key_code := ord(KeyChar);
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TempKeyEvent.native_key_code := 0;
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TempKeyEvent.is_system_key := ord(False);
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TempKeyEvent.character := #0;
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TempKeyEvent.unmodified_character := #0;
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TempKeyEvent.focus_on_editable_field := ord(False);
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FMXChromium1.SendKeyEvent(@TempKeyEvent);
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end
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else
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if (Key <> 0) and (KeyChar = #0) then
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begin
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if (Key = VK_RETURN) then
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begin
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// FMX doesn't trigger this event with a KeyChar<>0
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// to send a KEYEVENT_CHAR event for the VK_RETURN key.
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// We add it manually before the KEYEVENT_KEYUP event.
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TempKeyEvent.kind := KEYEVENT_CHAR;
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TempKeyEvent.modifiers := getModifiers(Shift);
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TempKeyEvent.windows_key_code := VK_RETURN;
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TempKeyEvent.native_key_code := 0;
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TempKeyEvent.is_system_key := ord(False);
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TempKeyEvent.character := #0;
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TempKeyEvent.unmodified_character := #0;
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TempKeyEvent.focus_on_editable_field := ord(False);
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FMXChromium1.SendKeyEvent(@TempKeyEvent);
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end;
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TempKeyEvent.kind := KEYEVENT_KEYUP;
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TempKeyEvent.modifiers := getModifiers(Shift);
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TempKeyEvent.windows_key_code := Key;
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TempKeyEvent.native_key_code := 0;
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TempKeyEvent.is_system_key := ord(False);
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TempKeyEvent.character := #0;
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TempKeyEvent.unmodified_character := #0;
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TempKeyEvent.focus_on_editable_field := ord(False);
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FMXChromium1.SendKeyEvent(@TempKeyEvent);
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1MouseDown(Sender: TObject;
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Button: TMouseButton; Shift: TShiftState; X, Y: Single);
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var
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TempEvent : TCefMouseEvent;
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TempTime : integer;
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begin
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if not(ssTouch in Shift) then
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begin
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FocusBrowser;
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if not(CancelPreviousClick(x, y, TempTime)) and (Button = FLastClickButton) then
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inc(FLastClickCount)
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else
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begin
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FLastClickPoint.x := x;
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FLastClickPoint.y := y;
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FLastClickCount := 1;
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end;
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FLastClickTime := TempTime;
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FLastClickButton := Button;
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TempEvent.x := round(X);
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TempEvent.y := round(Y);
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TempEvent.modifiers := getModifiers(Shift);
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FMXChromium1.SendMouseClickEvent(@TempEvent, GetButton(Button), False, FLastClickCount);
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1MouseLeave(Sender: TObject);
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var
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TempEvent : TCefMouseEvent;
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TempPoint : TPoint;
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TempPointF : TPointF;
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TempTime : integer;
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begin
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if GetMousePosition(TempPointF) then
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begin
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TempPoint.x := round(TempPointF.x);
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TempPoint.y := round(TempPointF.y);
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TempPoint := FMXBufferPanel1.ScreenToclient(TempPoint);
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if CancelPreviousClick(TempPoint.x, TempPoint.y, TempTime) then InitializeLastClick;
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TempEvent.x := TempPoint.x;
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TempEvent.y := TempPoint.y;
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TempEvent.modifiers := GetCefMouseModifiers;
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FMXChromium1.SendMouseMoveEvent(@TempEvent, True);
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1MouseMove(Sender: TObject;
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Shift: TShiftState; X, Y: Single);
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var
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TempEvent : TCefMouseEvent;
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TempTime : integer;
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begin
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if not(ssTouch in Shift) then
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begin
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if CancelPreviousClick(x, y, TempTime) then InitializeLastClick;
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TempEvent.x := round(X);
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TempEvent.y := round(Y);
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TempEvent.modifiers := getModifiers(Shift);
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FMXChromium1.SendMouseMoveEvent(@TempEvent, False);
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1MouseUp(Sender: TObject;
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Button: TMouseButton; Shift: TShiftState; X, Y: Single);
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var
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TempEvent : TCefMouseEvent;
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begin
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if not(ssTouch in Shift) then
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begin
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TempEvent.x := round(X);
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TempEvent.y := round(Y);
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TempEvent.modifiers := getModifiers(Shift);
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FMXChromium1.SendMouseClickEvent(@TempEvent, GetButton(Button), True, FLastClickCount);
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1MouseWheel(Sender: TObject;
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Shift: TShiftState; WheelDelta: Integer; var Handled: Boolean);
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var
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TempEvent : TCefMouseEvent;
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TempPoint : TPoint;
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TempPointF : TPointF;
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begin
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if FMXBufferPanel1.IsFocused and GetMousePosition(TempPointF) then
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begin
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TempPoint.x := round(TempPointF.x);
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TempPoint.y := round(TempPointF.y);
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TempPoint := FMXBufferPanel1.ScreenToClient(TempPoint);
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TempEvent.x := TempPoint.x;
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TempEvent.y := TempPoint.y;
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TempEvent.modifiers := getModifiers(Shift);
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FMXChromium1.SendMouseWheelEvent(@TempEvent, 0, WheelDelta);
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end;
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end;
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procedure TBrowserFrame.FMXBufferPanel1Resize(Sender: TObject);
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begin
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ResizeBrowser;
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end;
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procedure TBrowserFrame.FMXChromium1AddressChange(Sender: TObject;
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|
const browser: ICefBrowser; const frame: ICefFrame; const url: ustring);
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begin
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URLEdt.Text := url;
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end;
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|
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procedure TBrowserFrame.FMXChromium1AfterCreated(Sender: TObject;
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|
const browser: ICefBrowser);
|
|
begin
|
|
AddressLay.Enabled := True;
|
|
FocusBrowser;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1BeforeClose(Sender: TObject;
|
|
const browser: ICefBrowser);
|
|
begin
|
|
if assigned(FOnBrowserDestroyed) then FOnBrowserDestroyed(Sender);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1BeforePopup(Sender: TObject;
|
|
const browser: ICefBrowser; const frame: ICefFrame; const targetUrl,
|
|
targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition;
|
|
userGesture: Boolean; const popupFeatures: TCefPopupFeatures;
|
|
var windowInfo: TCefWindowInfo; var client: ICefClient;
|
|
var settings: TCefBrowserSettings; var extra_info: ICefDictionaryValue;
|
|
var noJavascriptAccess, Result: Boolean);
|
|
begin
|
|
// For simplicity, this demo blocks all popup windows and new tabs
|
|
Result := (targetDisposition in [WOD_NEW_FOREGROUND_TAB, WOD_NEW_BACKGROUND_TAB, WOD_NEW_POPUP, WOD_NEW_WINDOW]);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1CursorChange(Sender: TObject;
|
|
const browser: ICefBrowser; cursor: HICON; cursorType: TCefCursorType;
|
|
const customCursorInfo: PCefCursorInfo);
|
|
begin
|
|
FMXBufferPanel1.Cursor := CefCursorToWindowsCursor(cursorType);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1GetScreenInfo(Sender: TObject;
|
|
const browser: ICefBrowser; var screenInfo: TCefScreenInfo;
|
|
out Result: Boolean);
|
|
var
|
|
TempRect : TCEFRect;
|
|
begin
|
|
TempRect.x := 0;
|
|
TempRect.y := 0;
|
|
TempRect.width := round(FMXBufferPanel1.Width);
|
|
TempRect.height := round(FMXBufferPanel1.Height);
|
|
|
|
screenInfo.device_scale_factor := FMXBufferPanel1.ScreenScale;
|
|
screenInfo.depth := 0;
|
|
screenInfo.depth_per_component := 0;
|
|
screenInfo.is_monochrome := Ord(False);
|
|
screenInfo.rect := TempRect;
|
|
screenInfo.available_rect := TempRect;
|
|
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1GetScreenPoint(Sender: TObject;
|
|
const browser: ICefBrowser; viewX, viewY: Integer; var screenX,
|
|
screenY: Integer; out Result: Boolean);
|
|
var
|
|
TempScreenPt, TempViewPt : TPoint;
|
|
begin
|
|
// TFMXBufferPanel.ClientToScreen applies the scale factor. No need to call LogicalToDevice to set TempViewPt.
|
|
TempViewPt.x := viewX;
|
|
TempViewPt.y := viewY;
|
|
TempScreenPt := FMXBufferPanel1.ClientToScreen(TempViewPt);
|
|
screenX := TempScreenPt.x;
|
|
screenY := TempScreenPt.y;
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1GetViewRect(Sender: TObject;
|
|
const browser: ICefBrowser; var rect: TCefRect);
|
|
begin
|
|
rect.x := 0;
|
|
rect.y := 0;
|
|
rect.width := round(FMXBufferPanel1.Width);
|
|
rect.height := round(FMXBufferPanel1.Height);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1LoadError(Sender: TObject;
|
|
const browser: ICefBrowser; const frame: ICefFrame; errorCode: Integer;
|
|
const errorText, failedUrl: ustring);
|
|
var
|
|
TempString : string;
|
|
begin
|
|
if (errorCode = ERR_ABORTED) then exit;
|
|
|
|
TempString := '<html><body bgcolor="white">' +
|
|
'<h2>Failed to load URL ' + failedUrl +
|
|
' with error ' + errorText +
|
|
' (' + inttostr(errorCode) + ').</h2></body></html>';
|
|
|
|
FMXChromium1.LoadString(TempString, frame);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1LoadingStateChange(Sender: TObject;
|
|
const browser: ICefBrowser; isLoading, canGoBack, canGoForward: Boolean);
|
|
begin
|
|
BackBtn.Enabled := canGoBack;
|
|
ForwardBtn.Enabled := canGoForward;
|
|
|
|
if isLoading then
|
|
begin
|
|
ReloadBtn.Enabled := False;
|
|
StopBtn.Enabled := True;
|
|
end
|
|
else
|
|
begin
|
|
ReloadBtn.Enabled := True;
|
|
StopBtn.Enabled := False;
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1OpenUrlFromTab(Sender: TObject;
|
|
const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring;
|
|
targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean;
|
|
out Result: Boolean);
|
|
begin
|
|
// For simplicity, this demo blocks all popup windows and new tabs
|
|
Result := (targetDisposition in [WOD_NEW_FOREGROUND_TAB, WOD_NEW_BACKGROUND_TAB, WOD_NEW_POPUP, WOD_NEW_WINDOW]);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1Paint(Sender: TObject;
|
|
const browser: ICefBrowser; type_: TCefPaintElementType;
|
|
dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray;
|
|
const buffer: Pointer; width, height: Integer);
|
|
var
|
|
src, dst: PByte;
|
|
i, j, TempLineSize, TempSrcOffset, TempDstOffset, SrcStride, TempWidth, TempHeight : Integer;
|
|
n : NativeUInt;
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempScanlineSize, DstStride : integer;
|
|
{$ENDIF}
|
|
TempBufferBits : Pointer;
|
|
TempForcedResize : boolean;
|
|
TempBitmapData : TBitmapData;
|
|
TempBitmap : TBitmap;
|
|
TempSrcRect, TempDstRect : TRectF;
|
|
begin
|
|
try
|
|
FResizeCS.Acquire;
|
|
TempForcedResize := False;
|
|
|
|
if FMXBufferPanel1.BeginBufferDraw then
|
|
try
|
|
if (type_ = PET_POPUP) then
|
|
begin
|
|
if (FPopUpBitmap = nil) or
|
|
(width <> FPopUpBitmap.Width) or
|
|
(height <> FPopUpBitmap.Height) then
|
|
begin
|
|
if (FPopUpBitmap <> nil) then FPopUpBitmap.Free;
|
|
|
|
FPopUpBitmap := TBitmap.Create(width, height);
|
|
{$IFDEF DELPHI17_UP}
|
|
FPopUpBitmap.BitmapScale := FMXBufferPanel1.ScreenScale;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
TempWidth := FPopUpBitmap.Width;
|
|
TempHeight := FPopUpBitmap.Height;
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempScanlineSize := FPopUpBitmap.BytesPerLine;
|
|
{$ENDIF}
|
|
TempBitmap := FPopUpBitmap;
|
|
end
|
|
else
|
|
begin
|
|
TempForcedResize := FMXBufferPanel1.UpdateBufferDimensions(Width, Height) or not(FMXBufferPanel1.BufferIsResized(False));
|
|
TempWidth := FMXBufferPanel1.BufferWidth;
|
|
TempHeight := FMXBufferPanel1.BufferHeight;
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempScanlineSize := FMXBufferPanel1.ScanlineSize;
|
|
{$ENDIF}
|
|
TempBitmap := FMXBufferPanel1.Buffer;
|
|
end;
|
|
|
|
|
|
if (TempBitmap <> nil) {$IFDEF DELPHI17_UP}and TempBitmap.Map(TMapAccess.ReadWrite, TempBitmapData){$ENDIF} then
|
|
begin
|
|
try
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempBufferBits := TempBitmapData.StartLine;
|
|
DstStride := TempScanlineSize;
|
|
{$ENDIF}
|
|
SrcStride := Width * SizeOf(TRGBQuad);
|
|
|
|
n := 0;
|
|
|
|
while (n < dirtyRectsCount) do
|
|
begin
|
|
if (dirtyRects[n].x >= 0) and (dirtyRects[n].y >= 0) then
|
|
begin
|
|
TempLineSize := min(dirtyRects[n].width, TempWidth - dirtyRects[n].x) * SizeOf(TRGBQuad);
|
|
|
|
if (TempLineSize > 0) then
|
|
begin
|
|
TempSrcOffset := ((dirtyRects[n].y * Width) + dirtyRects[n].x) * SizeOf(TRGBQuad);
|
|
|
|
{$IFDEF DELPHI17_UP}
|
|
TempDstOffset := (dirtyRects[n].x * SizeOf(TRGBQuad));
|
|
{$ELSE}
|
|
TempDstOffset := (dirtyRects[n].y * TempScanlineSize) + (dirtyRects[n].x * SizeOf(TRGBQuad));
|
|
{$ENDIF}
|
|
|
|
src := @PByte(buffer)[TempSrcOffset];
|
|
{$IFNDEF DELPHI17_UP}
|
|
dst := @PByte(TempBufferBits)[TempDstOffset];
|
|
{$ENDIF}
|
|
|
|
i := 0;
|
|
j := min(dirtyRects[n].height, TempHeight - dirtyRects[n].y);
|
|
|
|
while (i < j) do
|
|
begin
|
|
{$IFDEF DELPHI17_UP}
|
|
TempBufferBits := TempBitmapData.GetScanline(dirtyRects[n].y + i);
|
|
dst := @PByte(TempBufferBits)[TempDstOffset];
|
|
{$ENDIF}
|
|
|
|
System.Move(src^, dst^, TempLineSize);
|
|
|
|
{$IFNDEF DELPHI17_UP}
|
|
inc(dst, DstStride);
|
|
{$ENDIF}
|
|
inc(src, SrcStride);
|
|
inc(i);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
inc(n);
|
|
end;
|
|
|
|
FMXBufferPanel1.InvalidatePanel;
|
|
finally
|
|
{$IFDEF DELPHI17_UP}
|
|
TempBitmap.Unmap(TempBitmapData);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
if FShowPopup and (FPopUpBitmap <> nil) then
|
|
begin
|
|
TempSrcRect := RectF(0, 0,
|
|
min(FPopUpRect.Width, FPopUpBitmap.Width),
|
|
min(FPopUpRect.Height, FPopUpBitmap.Height));
|
|
|
|
TempDstRect.Left := FPopUpRect.Left / GlobalCEFApp.DeviceScaleFactor;
|
|
TempDstRect.Top := FPopUpRect.Top / GlobalCEFApp.DeviceScaleFactor;
|
|
TempDstRect.Right := TempDstRect.Left + (TempSrcRect.Width / GlobalCEFApp.DeviceScaleFactor);
|
|
TempDstRect.Bottom := TempDstRect.Top + (TempSrcRect.Height / GlobalCEFApp.DeviceScaleFactor);
|
|
|
|
FMXBufferPanel1.BufferDraw(FPopUpBitmap, TempSrcRect, TempDstRect);
|
|
end;
|
|
end;
|
|
|
|
if (type_ = PET_VIEW) then
|
|
begin
|
|
if (TempForcedResize or FPendingResize) and
|
|
assigned(FOnBrowserNeedsResize) then
|
|
FOnBrowserNeedsResize(self);
|
|
|
|
FResizing := False;
|
|
FPendingResize := False;
|
|
end;
|
|
finally
|
|
FMXBufferPanel1.EndBufferDraw;
|
|
end;
|
|
finally
|
|
FResizeCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1PopupShow(Sender: TObject;
|
|
const browser: ICefBrowser; show: Boolean);
|
|
begin
|
|
if show then
|
|
FShowPopUp := True
|
|
else
|
|
begin
|
|
FShowPopUp := False;
|
|
FPopUpRect := rect(0, 0, 0, 0);
|
|
|
|
FMXChromium1.Invalidate(PET_VIEW);
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1PopupSize(Sender: TObject;
|
|
const browser: ICefBrowser; const rect: PCefRect);
|
|
begin
|
|
if (GlobalCEFApp <> nil) then
|
|
begin
|
|
LogicalToDevice(rect^, GlobalCEFApp.DeviceScaleFactor);
|
|
|
|
FPopUpRect.Left := rect.x;
|
|
FPopUpRect.Top := rect.y;
|
|
FPopUpRect.Right := rect.x + rect.width - 1;
|
|
FPopUpRect.Bottom := rect.y + rect.height - 1;
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1StatusMessage(Sender: TObject;
|
|
const browser: ICefBrowser; const value: ustring);
|
|
begin
|
|
StatusLbl.Text := value;
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1TitleChange(Sender: TObject;
|
|
const browser: ICefBrowser; const title: ustring);
|
|
begin
|
|
if assigned(FOnBrowserTitleChange) then FOnBrowserTitleChange(Sender, title);
|
|
end;
|
|
|
|
procedure TBrowserFrame.FMXChromium1Tooltip(Sender: TObject;
|
|
const browser: ICefBrowser; var text: ustring; out Result: Boolean);
|
|
begin
|
|
FMXBufferPanel1.Hint := text;
|
|
FMXBufferPanel1.ShowHint := (length(text) > 0);
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TBrowserFrame.ForwardBtnClick(Sender: TObject);
|
|
begin
|
|
FMXChromium1.GoForward;
|
|
end;
|
|
|
|
function TBrowserFrame.GetParentForm : TCustomForm;
|
|
var
|
|
TempParent : TTabItem;
|
|
begin
|
|
Result := nil;
|
|
TempParent := ParentTab;
|
|
|
|
if (TempParent <> nil) and (TempParent is TBrowserTab) then
|
|
Result := TBrowserTab(TempParent).ParentForm;
|
|
end;
|
|
|
|
function TBrowserFrame.GetParentTab : TTabItem;
|
|
var
|
|
TempParent : TFMXObject;
|
|
begin
|
|
Result := nil;
|
|
TempParent := Parent;
|
|
|
|
while (TempParent <> nil) and not(TempParent is TTabItem) do
|
|
TempParent := TempParent.Parent;
|
|
|
|
if (TempParent <> nil) and (TempParent is TTabItem) then
|
|
Result := TTabItem(TempParent);
|
|
end;
|
|
|
|
procedure TBrowserFrame.GoBtnClick(Sender: TObject);
|
|
begin
|
|
FMXChromium1.LoadURL(URLEdt.Text);
|
|
end;
|
|
|
|
procedure TBrowserFrame.CreateBrowser;
|
|
begin
|
|
if not(FMXChromium1.Initialized) then
|
|
begin
|
|
FMXChromium1.DefaultUrl := FHomepage;
|
|
FMXChromium1.CreateBrowser;
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.CloseBrowser;
|
|
begin
|
|
if not(FClosing) then
|
|
begin
|
|
FClosing := True;
|
|
AddressLay.Enabled := False;
|
|
FMXChromium1.CloseBrowser(True);
|
|
end;
|
|
end;
|
|
|
|
function TBrowserFrame.getModifiers(Shift: TShiftState): TCefEventFlags;
|
|
begin
|
|
Result := EVENTFLAG_NONE;
|
|
|
|
if (ssShift in Shift) then Result := Result or EVENTFLAG_SHIFT_DOWN;
|
|
if (ssAlt in Shift) then Result := Result or EVENTFLAG_ALT_DOWN;
|
|
if (ssCtrl in Shift) then Result := Result or EVENTFLAG_CONTROL_DOWN;
|
|
if (ssLeft in Shift) then Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
|
|
if (ssRight in Shift) then Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
|
|
if (ssMiddle in Shift) then Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
|
|
end;
|
|
|
|
function TBrowserFrame.GetButton(Button: TMouseButton): TCefMouseButtonType;
|
|
begin
|
|
case Button of
|
|
TMouseButton.mbRight : Result := MBT_RIGHT;
|
|
TMouseButton.mbMiddle : Result := MBT_MIDDLE;
|
|
else Result := MBT_LEFT;
|
|
end;
|
|
end;
|
|
|
|
function TBrowserFrame.GetMousePosition(var aPoint : TPointF) : boolean;
|
|
var
|
|
TempForm : TCustomForm;
|
|
begin
|
|
TempForm := ParentForm;
|
|
Result := (TempForm <> nil) and
|
|
(TempForm is TMainForm) and
|
|
TMainForm(TempForm).GetMousePosition(aPoint);
|
|
end;
|
|
|
|
procedure TBrowserFrame.InitializeLastClick;
|
|
begin
|
|
FLastClickCount := 1;
|
|
FLastClickTime := 0;
|
|
FLastClickPoint.x := 0;
|
|
FLastClickPoint.y := 0;
|
|
FLastClickButton := TMouseButton.mbLeft;
|
|
end;
|
|
|
|
function TBrowserFrame.CancelPreviousClick(const x, y : single; var aCurrentTime : integer) : boolean;
|
|
begin
|
|
{$IFDEF MSWINDOWS}
|
|
aCurrentTime := GetMessageTime;
|
|
|
|
Result := (abs(FLastClickPoint.x - x) > (GetSystemMetrics(SM_CXDOUBLECLK) div 2)) or
|
|
(abs(FLastClickPoint.y - y) > (GetSystemMetrics(SM_CYDOUBLECLK) div 2)) or
|
|
(cardinal(aCurrentTime - FLastClickTime) > GetDoubleClickTime);
|
|
{$ELSE}
|
|
aCurrentTime := 0;
|
|
Result := False;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
function TBrowserFrame.PostFormMessage(aMsg : cardinal; aWParam : WPARAM; aLParam : LPARAM) : boolean;
|
|
var
|
|
TempTab : TTabItem;
|
|
|
|
begin
|
|
TempTab := ParentTab;
|
|
Result := (TempTab <> nil) and
|
|
(TempTab is TBrowserTab) and
|
|
TBrowserTab(TempTab).PostFormMessage(aMsg, aWParam, aLParam);
|
|
end;
|
|
|
|
function TBrowserFrame.ArePointerEventsSupported : boolean;
|
|
begin
|
|
Result := FAtLeastWin8 and
|
|
(@GetPointerType <> nil) and
|
|
(@GetPointerTouchInfo <> nil) and
|
|
(@GetPointerPenInfo <> nil);
|
|
end;
|
|
|
|
function TBrowserFrame.HandlePointerEvent(const aMessage : TMsg) : boolean;
|
|
const
|
|
PT_TOUCH = 2;
|
|
PT_PEN = 3;
|
|
var
|
|
TempID : uint32;
|
|
TempType : POINTER_INPUT_TYPE;
|
|
begin
|
|
Result := False;
|
|
TempID := LoWord(aMessage.wParam);
|
|
|
|
if GetPointerType(TempID, @TempType) then
|
|
case TempType of
|
|
PT_PEN : Result := HandlePenEvent(TempID, aMessage.message);
|
|
PT_TOUCH : Result := HandleTouchEvent(TempID, aMessage.message);
|
|
end;
|
|
end;
|
|
|
|
function TBrowserFrame.HandlePenEvent(const aID : uint32; aMsg : cardinal) : boolean;
|
|
var
|
|
TempPenInfo : POINTER_PEN_INFO;
|
|
TempTouchEvent : TCefTouchEvent;
|
|
TempPoint : TPoint;
|
|
begin
|
|
Result := False;
|
|
|
|
if not(GetPointerPenInfo(aID, @TempPenInfo)) then exit;
|
|
|
|
TempTouchEvent.id := aID;
|
|
TempTouchEvent.x := 0;
|
|
TempTouchEvent.y := 0;
|
|
TempTouchEvent.radius_x := 0;
|
|
TempTouchEvent.radius_y := 0;
|
|
TempTouchEvent.type_ := CEF_TET_RELEASED;
|
|
TempTouchEvent.modifiers := EVENTFLAG_NONE;
|
|
|
|
if ((TempPenInfo.penFlags and PEN_FLAG_ERASER) <> 0) then
|
|
TempTouchEvent.pointer_type := CEF_POINTER_TYPE_ERASER
|
|
else
|
|
TempTouchEvent.pointer_type := CEF_POINTER_TYPE_PEN;
|
|
|
|
if ((TempPenInfo.penMask and PEN_MASK_PRESSURE) <> 0) then
|
|
TempTouchEvent.pressure := TempPenInfo.pressure / 1024
|
|
else
|
|
TempTouchEvent.pressure := 0;
|
|
|
|
if ((TempPenInfo.penMask and PEN_MASK_ROTATION) <> 0) then
|
|
TempTouchEvent.rotation_angle := TempPenInfo.rotation / 180 * Pi
|
|
else
|
|
TempTouchEvent.rotation_angle := 0;
|
|
|
|
Result := True;
|
|
|
|
case aMsg of
|
|
WM_POINTERDOWN :
|
|
TempTouchEvent.type_ := CEF_TET_PRESSED;
|
|
|
|
WM_POINTERUPDATE :
|
|
if ((TempPenInfo.pointerInfo.pointerFlags and POINTER_FLAG_INCONTACT) <> 0) then
|
|
TempTouchEvent.type_ := CEF_TET_MOVED
|
|
else
|
|
exit; // Ignore hover events.
|
|
|
|
WM_POINTERUP :
|
|
TempTouchEvent.type_ := CEF_TET_RELEASED;
|
|
end;
|
|
|
|
if ((TempPenInfo.pointerInfo.pointerFlags and POINTER_FLAG_CANCELED) <> 0) then
|
|
TempTouchEvent.type_ := CEF_TET_CANCELLED;
|
|
|
|
TempPoint := FMXBufferPanel1.ScreenToClient(TempPenInfo.pointerInfo.ptPixelLocation);
|
|
// TFMXBufferPanel.ScreenToClient applies the scale factor. No need to call DeviceToLogical to set TempTouchEvent.
|
|
TempTouchEvent.x := TempPoint.x;
|
|
TempTouchEvent.y := TempPoint.y;
|
|
|
|
FMXChromium1.SendTouchEvent(@TempTouchEvent);
|
|
end;
|
|
|
|
function TBrowserFrame.HandleTouchEvent(const aID : uint32; aMsg : cardinal) : boolean;
|
|
var
|
|
TempTouchInfo : POINTER_TOUCH_INFO;
|
|
TempTouchEvent : TCefTouchEvent;
|
|
TempPoint : TPoint;
|
|
begin
|
|
Result := False;
|
|
|
|
if not(GetPointerTouchInfo(aID, @TempTouchInfo)) then exit;
|
|
|
|
TempTouchEvent.id := aID;
|
|
TempTouchEvent.x := 0;
|
|
TempTouchEvent.y := 0;
|
|
TempTouchEvent.radius_x := 0;
|
|
TempTouchEvent.radius_y := 0;
|
|
TempTouchEvent.rotation_angle := 0;
|
|
TempTouchEvent.pressure := 0;
|
|
TempTouchEvent.type_ := CEF_TET_RELEASED;
|
|
TempTouchEvent.modifiers := EVENTFLAG_NONE;
|
|
TempTouchEvent.pointer_type := CEF_POINTER_TYPE_TOUCH;
|
|
|
|
Result := True;
|
|
|
|
case aMsg of
|
|
WM_POINTERDOWN :
|
|
TempTouchEvent.type_ := CEF_TET_PRESSED;
|
|
|
|
WM_POINTERUPDATE :
|
|
if ((TempTouchInfo.pointerInfo.pointerFlags and POINTER_FLAG_INCONTACT) <> 0) then
|
|
TempTouchEvent.type_ := CEF_TET_MOVED
|
|
else
|
|
exit; // Ignore hover events.
|
|
|
|
WM_POINTERUP :
|
|
TempTouchEvent.type_ := CEF_TET_RELEASED;
|
|
end;
|
|
|
|
if ((TempTouchInfo.pointerInfo.pointerFlags and POINTER_FLAG_CANCELED) <> 0) then
|
|
TempTouchEvent.type_ := CEF_TET_CANCELLED;
|
|
|
|
TempPoint := FMXBufferPanel1.ScreenToClient(TempTouchInfo.pointerInfo.ptPixelLocation);
|
|
// TFMXBufferPanel.ScreenToClient applies the scale factor. No need to call DeviceToLogical to set TempTouchEvent.
|
|
TempTouchEvent.x := TempPoint.x;
|
|
TempTouchEvent.y := TempPoint.y;
|
|
|
|
FMXChromium1.SendTouchEvent(@TempTouchEvent);
|
|
end;
|
|
|
|
procedure TBrowserFrame.HandleSYSCHAR(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if FMXBufferPanel1.IsFocused and (aMessage.wParam in [VK_BACK..VK_HELP]) then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_CHAR;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
|
|
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
|
|
TempKeyEvent.native_key_code := integer(aMessage.lParam);
|
|
TempKeyEvent.is_system_key := ord(True);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
FMXChromium1.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.HandleSYSKEYDOWN(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if FMXBufferPanel1.IsFocused and (aMessage.wParam in [VK_BACK..VK_HELP]) then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
|
|
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
|
|
TempKeyEvent.native_key_code := integer(aMessage.lParam);
|
|
TempKeyEvent.is_system_key := ord(True);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
FMXChromium1.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
procedure TBrowserFrame.HandleSYSKEYUP(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if FMXBufferPanel1.IsFocused and (aMessage.wParam in [VK_BACK..VK_HELP]) then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_KEYUP;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
|
|
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
|
|
TempKeyEvent.native_key_code := integer(aMessage.lParam);
|
|
TempKeyEvent.is_system_key := ord(True);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
FMXChromium1.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
function TBrowserFrame.HandlePOINTER(const aMessage : TMsg) : boolean;
|
|
begin
|
|
Result := FMXBufferPanel1.IsFocused and
|
|
(GlobalCEFApp <> nil) and
|
|
ArePointerEventsSupported and
|
|
HandlePointerEvent(aMessage);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
|
|
end.
|