mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
1189 lines
43 KiB
ObjectPascal
1189 lines
43 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 © 2023 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 uFMXExternalPumpBrowser;
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{$I cef.inc}
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interface
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uses
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{$IFDEF MSWINDOWS}
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Winapi.Messages, Winapi.Windows,
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{$ENDIF}
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System.Types, System.UITypes, System.Classes, System.SyncObjs,
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FMX.Types, FMX.Controls, FMX.Forms, FMX.Dialogs,
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FMX.Edit, FMX.StdCtrls, FMX.Controls.Presentation,
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{$IFDEF DELPHI17_UP}
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FMX.Graphics,
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{$ENDIF}
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uCEFFMXChromium, uCEFFMXBufferPanel, uCEFFMXWorkScheduler,
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uCEFInterfaces, uCEFTypes, uCEFConstants, uCEFChromiumCore, FMX.Layouts,
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FMX.ComboEdit;
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type
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TFMXExternalPumpBrowserFrm = class(TForm)
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AddressPnl: TPanel;
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chrmosr: TFMXChromium;
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Timer1: TTimer;
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SaveDialog1: TSaveDialog;
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Panel1: TFMXBufferPanel;
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Layout1: TLayout;
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GoBtn: TButton;
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SnapshotBtn: TButton;
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AddressCb: TComboEdit;
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procedure GoBtnClick(Sender: TObject);
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procedure GoBtnEnter(Sender: TObject);
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procedure Panel1Enter(Sender: TObject);
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procedure Panel1Exit(Sender: TObject);
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procedure Panel1Resize(Sender: TObject);
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procedure Panel1Click(Sender: TObject);
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procedure Panel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
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procedure Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
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procedure Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Single);
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procedure Panel1MouseLeave(Sender: TObject);
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procedure Panel1MouseWheel(Sender: TObject; Shift: TShiftState; WheelDelta: Integer; var Handled: Boolean);
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procedure Panel1KeyDown(Sender: TObject; var Key: Word; var KeyChar: Char; Shift: TShiftState);
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procedure Panel1DialogKey(Sender: TObject; var Key: Word; Shift: TShiftState);
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procedure FormCreate(Sender: TObject);
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procedure FormDestroy(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure FormHide(Sender: TObject);
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procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
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procedure chrmosrPaint(Sender: TObject; const browser: ICefBrowser; type_: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; width, height: Integer);
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procedure chrmosrGetViewRect(Sender: TObject; const browser: ICefBrowser; var rect: TCefRect);
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procedure chrmosrGetScreenPoint(Sender: TObject; const browser: ICefBrowser; viewX, viewY: Integer; var screenX, screenY: Integer; out Result: Boolean);
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procedure chrmosrGetScreenInfo(Sender: TObject; const browser: ICefBrowser; var screenInfo: TCefScreenInfo; out Result: Boolean);
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procedure chrmosrPopupShow(Sender: TObject; const browser: ICefBrowser; show: Boolean);
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procedure chrmosrPopupSize(Sender: TObject; const browser: ICefBrowser; const rect: PCefRect);
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procedure chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
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procedure chrmosrTooltip(Sender: TObject; const browser: ICefBrowser; var text: ustring; out Result: Boolean);
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procedure chrmosrBeforePopup(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: Boolean; var Result: Boolean);
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procedure chrmosrAfterCreated(Sender: TObject; const browser: ICefBrowser);
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procedure chrmosrCursorChange(Sender: TObject; const browser: ICefBrowser; cursor_: TCefCursorHandle; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo; var aResult: Boolean);
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procedure chrmosrCanFocus(Sender: TObject);
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procedure Timer1Timer(Sender: TObject);
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procedure AddressEdtEnter(Sender: TObject);
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procedure SnapshotBtnClick(Sender: TObject);
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procedure SnapshotBtnEnter(Sender: TObject);
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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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FCanClose : boolean;
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FClosing : boolean;
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FResizeCS : TCriticalSection;
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FAtLeastWin8 : boolean;
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{$IFDEF DELPHI17_UP}
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FMouseWheelService : IFMXMouseService;
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{$ENDIF}
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FLastClickCount : integer;
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FLastClickTime : integer;
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FLastClickPoint : TPointF;
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FLastClickButton : TMouseButton;
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procedure LoadURL;
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function getModifiers(Shift: TShiftState): TCefEventFlags;
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function GetButton(Button: TMouseButton): TCefMouseButtonType;
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function GetMousePosition(var aPoint : TPointF) : boolean;
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procedure InitializeLastClick;
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function CancelPreviousClick(const x, y : single; var aCurrentTime : integer) : boolean;
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{$IFDEF MSWINDOWS}
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function SendCompMessage(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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{$ENDIF}
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public
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procedure DoResize;
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procedure NotifyMoveOrResizeStarted;
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procedure SendCaptureLostEvent;
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procedure SetBounds(ALeft: Integer; ATop: Integer; AWidth: Integer; AHeight: Integer); override;
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{$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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procedure HandleKEYDOWN(const aMessage : TMsg);
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procedure HandleKEYUP(const aMessage : TMsg);
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function HandlePOINTER(const aMessage : TMsg) : boolean;
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{$ENDIF}
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end;
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var
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FMXExternalPumpBrowserFrm : TFMXExternalPumpBrowserFrm;
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// This is a simple browser using FireMonkey components in OSR mode (off-screen rendering)
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// and a external message pump.
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// It's recomemded to understand the code in the SimpleOSRBrowser and OSRExternalPumpBrowser demos before
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// reading the code in this demo.
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// Due to the Firemonkey code structure, this demo uses a IFMXApplicationService interface implemented in
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// uFMXApplicationService.pas to intercept some windows messages needed to make a CEF browser work.
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// The TFMXApplicationService.HandleMessages function receives many of the messages that the
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// OSRExternalPumpBrowser demo hadled in the main form or in the GlobalFMXWorkScheduler.
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// It was necessary to destroy the browser following the destruction sequence described in
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// the MDIBrowser demo but in OSR mode there are some modifications.
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// All FMX applications using CEF4Delphi should add the $(FrameworkType) conditional define
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// in the project options to avoid duplicated resources.
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// This demo has that define in the menu option :
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// Project -> Options -> Building -> Delphi compiler -> Conditional defines (All configurations)
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// This is the destruction sequence in OSR mode :
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// 1- FormCloseQuery sets CanClose to the initial FCanClose value (False) and
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// calls chrmosr.CloseBrowser(True).
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// 2- chrmosr.CloseBrowser(True) will trigger chrmosr.OnClose and the default
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// implementation will destroy the internal browser immediately, which will
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// trigger the chrmosr.OnBeforeClose event.
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// 3- chrmosr.OnBeforeClose sets FCanClose to True and closes the form.
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procedure CreateGlobalCEFApp;
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implementation
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{$R *.fmx}
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uses
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System.SysUtils, System.Math, FMX.Platform, FMX.Platform.Win,
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uCEFMiscFunctions, uCEFApplication, uFMXApplicationService;
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procedure GlobalCEFApp_OnScheduleMessagePumpWork(const aDelayMS : int64);
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begin
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if (GlobalFMXWorkScheduler <> nil) then
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GlobalFMXWorkScheduler.ScheduleMessagePumpWork(aDelayMS);
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end;
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procedure CreateGlobalCEFApp;
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begin
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GlobalCEFApp := TCefApplication.Create;
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GlobalCEFApp.WindowlessRenderingEnabled := True;
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GlobalCEFApp.ExternalMessagePump := True;
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GlobalCEFApp.MultiThreadedMessageLoop := False;
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GlobalCEFApp.OnScheduleMessagePumpWork := GlobalCEFApp_OnScheduleMessagePumpWork;
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{$IFDEF DEBUG}
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//GlobalCEFApp.LogFile := 'debug.log';
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//GlobalCEFApp.LogSeverity := LOGSEVERITY_INFO;
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{$ENDIF}
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// TFMXWorkScheduler will call cef_do_message_loop_work when
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// it's told in the GlobalCEFApp.OnScheduleMessagePumpWork event.
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// GlobalFMXWorkScheduler needs to be created before the
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// GlobalCEFApp.StartMainProcess call.
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GlobalFMXWorkScheduler := TFMXWorkScheduler.Create(nil);
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end;
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procedure TFMXExternalPumpBrowserFrm.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
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begin
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CanClose := FCanClose;
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if not(FClosing) then
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begin
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FClosing := True;
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Visible := False;
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AddressPnl.Enabled := False;
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chrmosr.CloseBrowser(True);
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end;
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end;
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procedure TFMXExternalPumpBrowserFrm.FormCreate(Sender: TObject);
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var
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TempMajorVer, TempMinorVer : DWORD;
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begin
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TFMXApplicationService.AddPlatformService;
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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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FCanClose := False;
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FClosing := False;
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FResizeCS := TCriticalSection.Create;
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{$IFDEF MSWINDOWS}
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FAtLeastWin8 := GetWindowsMajorMinorVersion(TempMajorVer, TempMinorVer) and
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((TempMajorVer > 6) or
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((TempMajorVer = 6) and (TempMinorVer >= 2)));
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{$ELSE}
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FAtLeastWin8 := False;
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{$ENDIF}
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chrmosr.DefaultURL := AddressCb.Text;
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InitializeLastClick;
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{$IFDEF DELPHI17_UP}
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if TPlatformServices.Current.SupportsPlatformService(IFMXMouseService) then
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FMouseWheelService := TPlatformServices.Current.GetPlatformService(IFMXMouseService) as IFMXMouseService;
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{$ENDIF}
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end;
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procedure TFMXExternalPumpBrowserFrm.FormDestroy(Sender: TObject);
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begin
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FResizeCS.Free;
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if (FPopUpBitmap <> nil) then FreeAndNil(FPopUpBitmap);
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end;
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procedure TFMXExternalPumpBrowserFrm.FormHide(Sender: TObject);
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begin
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chrmosr.SetFocus(False);
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chrmosr.WasHidden(True);
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end;
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procedure TFMXExternalPumpBrowserFrm.FormShow(Sender: TObject);
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begin
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if chrmosr.Initialized then
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begin
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chrmosr.WasHidden(False);
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chrmosr.SetFocus(True);
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end
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else
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begin
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// opaque white background color
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chrmosr.Options.BackgroundColor := CefColorSetARGB($FF, $FF, $FF, $FF);
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if not(chrmosr.CreateBrowser) then Timer1.Enabled := True;
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end;
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end;
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procedure TFMXExternalPumpBrowserFrm.GoBtnClick(Sender: TObject);
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begin
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LoadURL;
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end;
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procedure TFMXExternalPumpBrowserFrm.LoadURL;
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begin
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FResizeCS.Acquire;
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FResizing := False;
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FPendingResize := False;
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FResizeCS.Release;
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chrmosr.LoadURL(AddressCb.Text);
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end;
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procedure TFMXExternalPumpBrowserFrm.GoBtnEnter(Sender: TObject);
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begin
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chrmosr.SetFocus(False);
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1Click(Sender: TObject);
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begin
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Panel1.SetFocus;
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1DialogKey(Sender: TObject;
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var Key: Word; Shift: TShiftState);
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begin
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if (Key = vkTab) then Key := 0;
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1Enter(Sender: TObject);
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begin
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chrmosr.SetFocus(True);
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1Exit(Sender: TObject);
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begin
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chrmosr.SetFocus(False);
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1KeyDown( Sender : TObject;
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var Key : Word;
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var KeyChar : Char;
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Shift : TShiftState);
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var
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TempKeyEvent : TCefKeyEvent;
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begin
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if not(Panel1.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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chrmosr.SendKeyEvent(@TempKeyEvent);
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end
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else
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if (Key <> 0) and (KeyChar = #0) and
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(Key in [vkLeft, vkRight, vkUp, vkDown]) then
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Key := 0;
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1MouseDown(Sender : TObject;
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Button : TMouseButton;
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Shift : TShiftState;
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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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Panel1.SetFocus;
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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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chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), False, FLastClickCount);
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end;
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end;
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function TFMXExternalPumpBrowserFrm.GetMousePosition(var aPoint : TPointF) : boolean;
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begin
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{$IFDEF DELPHI17_UP}
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if (FMouseWheelService <> nil) then
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begin
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aPoint := FMouseWheelService.GetMousePos;
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Result := True;
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end
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else
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begin
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aPoint.x := 0;
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aPoint.y := 0;
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Result := False;
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end;
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{$ELSE}
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TempPointF := Platform.GetMousePos;
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Result := True;
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{$ENDIF}
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1MouseLeave(Sender: TObject);
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var
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TempEvent : TCefMouseEvent;
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TempPoint : TPointF;
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TempTime : integer;
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begin
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if GetMousePosition(TempPoint) then
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begin
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TempPoint := Panel1.ScreenToClient(TempPoint);
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if CancelPreviousClick(TempPoint.x, TempPoint.y, TempTime) then InitializeLastClick;
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TempEvent.x := round(TempPoint.x);
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TempEvent.y := round(TempPoint.y);
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TempEvent.modifiers := GetCefMouseModifiers;
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chrmosr.SendMouseMoveEvent(@TempEvent, True);
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end;
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1MouseMove(Sender : TObject;
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Shift : TShiftState;
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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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chrmosr.SendMouseMoveEvent(@TempEvent, False);
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end;
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1MouseUp(Sender : TObject;
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Button : TMouseButton;
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Shift : TShiftState;
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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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chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), True, FLastClickCount);
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end;
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end;
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procedure TFMXExternalPumpBrowserFrm.Panel1MouseWheel( Sender : TObject;
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Shift : TShiftState;
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WheelDelta : Integer;
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var Handled : Boolean);
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var
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TempEvent : TCefMouseEvent;
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TempPoint : TPointF;
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begin
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if Panel1.IsFocused and GetMousePosition(TempPoint) then
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begin
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TempPoint := Panel1.ScreenToClient(TempPoint);
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TempEvent.x := round(TempPoint.x);
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TempEvent.y := round(TempPoint.y);
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TempEvent.modifiers := getModifiers(Shift);
|
|
chrmosr.SendMouseWheelEvent(@TempEvent, 0, WheelDelta);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.Panel1Resize(Sender: TObject);
|
|
begin
|
|
DoResize;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.Timer1Timer(Sender: TObject);
|
|
begin
|
|
Timer1.Enabled := False;
|
|
|
|
if not(chrmosr.CreateBrowser) and not(chrmosr.Initialized) then
|
|
Timer1.Enabled := True;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.AddressEdtEnter(Sender: TObject);
|
|
begin
|
|
chrmosr.SetFocus(False);
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrAfterCreated(Sender: TObject; const browser: ICefBrowser);
|
|
begin
|
|
// Now the browser is fully initialized we can enable the UI.
|
|
Caption := 'FMX External Pump Browser';
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
|
|
begin
|
|
FCanClose := True;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
SendCompMessage(WM_CLOSE);
|
|
{$ELSE}
|
|
TThread.Queue(nil, procedure
|
|
begin
|
|
close
|
|
end);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrBeforePopup( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
const frame : ICefFrame;
|
|
const targetUrl : ustring;
|
|
const targetFrameName : ustring;
|
|
targetDisposition : TCefWindowOpenDisposition;
|
|
userGesture : Boolean;
|
|
const popupFeatures : TCefPopupFeatures;
|
|
var windowInfo : TCefWindowInfo;
|
|
var client : ICefClient;
|
|
var settings : TCefBrowserSettings;
|
|
var extra_info : ICefDictionaryValue;
|
|
var noJavascriptAccess : Boolean;
|
|
var 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 TFMXExternalPumpBrowserFrm.chrmosrCanFocus(Sender: TObject);
|
|
begin
|
|
TThread.ForceQueue(nil,
|
|
procedure
|
|
begin
|
|
// The browser required some time to create associated internal objects
|
|
// before being able to accept the focus. Now we can set the focus on the
|
|
// TBufferPanel control
|
|
if Panel1.IsFocused then
|
|
chrmosr.SetFocus(True)
|
|
else
|
|
Panel1.SetFocus;
|
|
end);
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrCursorChange( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
cursor_ : TCefCursorHandle;
|
|
cursorType : TCefCursorType;
|
|
const customCursorInfo : PCefCursorInfo;
|
|
var aResult : Boolean);
|
|
begin
|
|
Panel1.Cursor := CefCursorToWindowsCursor(cursorType);
|
|
aResult := True;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrGetScreenInfo( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
var screenInfo : TCefScreenInfo;
|
|
out Result : Boolean);
|
|
var
|
|
TempRect : TCEFRect;
|
|
begin
|
|
TempRect.x := 0;
|
|
TempRect.y := 0;
|
|
TempRect.width := round(Panel1.Width);
|
|
TempRect.height := round(Panel1.Height);
|
|
|
|
screenInfo.device_scale_factor := Panel1.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 TFMXExternalPumpBrowserFrm.chrmosrGetScreenPoint( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
viewX : Integer;
|
|
viewY : Integer;
|
|
var screenX : Integer;
|
|
var screenY : Integer;
|
|
out Result : Boolean);
|
|
var
|
|
TempScreenPt, TempViewPt : TPoint;
|
|
TempScale : single;
|
|
begin
|
|
TempScale := Panel1.ScreenScale;
|
|
TempViewPt.x := viewX;
|
|
TempViewPt.y := viewY;
|
|
TempScreenPt := Panel1.ClientToScreen(TempViewPt);
|
|
screenX := LogicalToDevice(TempScreenPt.x, TempScale);
|
|
screenY := LogicalToDevice(TempScreenPt.y, TempScale);
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrGetViewRect( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
var rect : TCefRect);
|
|
begin
|
|
rect.x := 0;
|
|
rect.y := 0;
|
|
rect.width := round(Panel1.Width);
|
|
rect.height := round(Panel1.Height);
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrPaint( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
type_ : TCefPaintElementType;
|
|
dirtyRectsCount : NativeUInt;
|
|
const dirtyRects : PCefRectArray;
|
|
const buffer : Pointer;
|
|
width : Integer;
|
|
height : Integer);
|
|
var
|
|
src, dst: PByte;
|
|
i, j, TempLineSize, TempSrcOffset, TempDstOffset, SrcStride, TempWidth, TempHeight : Integer;
|
|
n : NativeUInt;
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempScanlineSize, DstStride : integer;
|
|
{$ENDIF}
|
|
TempBufferBits : Pointer;
|
|
TempForcedResize : boolean;
|
|
TempBitmapData : TBitmapData;
|
|
TempBitmap : TBitmap;
|
|
TempSrcRect, TempDstRect : TRectF;
|
|
begin
|
|
try
|
|
FResizeCS.Acquire;
|
|
TempForcedResize := False;
|
|
|
|
if Panel1.BeginBufferDraw then
|
|
try
|
|
if (type_ = PET_POPUP) then
|
|
begin
|
|
if (FPopUpBitmap = nil) or
|
|
(width <> FPopUpBitmap.Width) or
|
|
(height <> FPopUpBitmap.Height) then
|
|
begin
|
|
if (FPopUpBitmap <> nil) then FPopUpBitmap.Free;
|
|
|
|
FPopUpBitmap := TBitmap.Create(width, height);
|
|
{$IFDEF DELPHI17_UP}
|
|
FPopUpBitmap.BitmapScale := Panel1.ScreenScale;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
TempWidth := FPopUpBitmap.Width;
|
|
TempHeight := FPopUpBitmap.Height;
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempScanlineSize := FPopUpBitmap.BytesPerLine;
|
|
{$ENDIF}
|
|
TempBitmap := FPopUpBitmap;
|
|
end
|
|
else
|
|
begin
|
|
TempForcedResize := Panel1.UpdateBufferDimensions(Width, Height) or not(Panel1.BufferIsResized(False));
|
|
TempWidth := Panel1.BufferWidth;
|
|
TempHeight := Panel1.BufferHeight;
|
|
{$IFNDEF DELPHI17_UP}
|
|
TempScanlineSize := Panel1.ScanlineSize;
|
|
{$ENDIF}
|
|
TempBitmap := Panel1.Buffer;
|
|
end;
|
|
|
|
|
|
if (TempBitmap <> nil) {$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}
|
|
|
|
Move(src^, dst^, TempLineSize);
|
|
|
|
{$IFNDEF DELPHI17_UP}
|
|
inc(dst, DstStride);
|
|
{$ENDIF}
|
|
inc(src, SrcStride);
|
|
inc(i);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
inc(n);
|
|
end;
|
|
|
|
Panel1.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);
|
|
|
|
Panel1.BufferDraw(FPopUpBitmap, TempSrcRect, TempDstRect);
|
|
end;
|
|
end;
|
|
|
|
if (type_ = PET_VIEW) then
|
|
begin
|
|
if TempForcedResize or FPendingResize then
|
|
begin
|
|
{$IFDEF MSWINDOWS}
|
|
SendCompMessage(CEF_PENDINGRESIZE);
|
|
{$ELSE}
|
|
TThread.Queue(nil, DoResize);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
FResizing := False;
|
|
FPendingResize := False;
|
|
end;
|
|
finally
|
|
Panel1.EndBufferDraw;
|
|
end;
|
|
finally
|
|
FResizeCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrPopupShow( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
show : Boolean);
|
|
begin
|
|
if show then
|
|
FShowPopUp := True
|
|
else
|
|
begin
|
|
FShowPopUp := False;
|
|
FPopUpRect := rect(0, 0, 0, 0);
|
|
|
|
chrmosr.Invalidate(PET_VIEW);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.chrmosrPopupSize( 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 TFMXExternalPumpBrowserFrm.chrmosrTooltip( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
var text : ustring;
|
|
out Result : Boolean);
|
|
begin
|
|
Panel1.Hint := text;
|
|
Panel1.ShowHint := (length(text) > 0);
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.DoResize;
|
|
begin
|
|
if (FResizeCS <> nil) then
|
|
try
|
|
FResizeCS.Acquire;
|
|
|
|
if FResizing then
|
|
FPendingResize := True
|
|
else
|
|
if Panel1.BufferIsResized then
|
|
chrmosr.Invalidate(PET_VIEW)
|
|
else
|
|
begin
|
|
FResizing := True;
|
|
chrmosr.WasResized;
|
|
end;
|
|
finally
|
|
FResizeCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.SetBounds(ALeft, ATop, AWidth, AHeight: Integer);
|
|
var
|
|
PositionChanged: Boolean;
|
|
begin
|
|
PositionChanged := (ALeft <> Left) or (ATop <> Top);
|
|
|
|
inherited SetBounds(ALeft, ATop, AWidth, AHeight);
|
|
|
|
if PositionChanged then NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.NotifyMoveOrResizeStarted;
|
|
begin
|
|
if (chrmosr <> nil) then chrmosr.NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.SendCaptureLostEvent;
|
|
begin
|
|
if (chrmosr <> nil) then chrmosr.SendCaptureLostEvent;
|
|
end;
|
|
|
|
function TFMXExternalPumpBrowserFrm.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 TFMXExternalPumpBrowserFrm.GetButton(Button: TMouseButton): TCefMouseButtonType;
|
|
begin
|
|
case Button of
|
|
TMouseButton.mbRight : Result := MBT_RIGHT;
|
|
TMouseButton.mbMiddle : Result := MBT_MIDDLE;
|
|
else Result := MBT_LEFT;
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.InitializeLastClick;
|
|
begin
|
|
FLastClickCount := 1;
|
|
FLastClickTime := 0;
|
|
FLastClickPoint.x := 0;
|
|
FLastClickPoint.y := 0;
|
|
FLastClickButton := TMouseButton.mbLeft;
|
|
end;
|
|
|
|
function TFMXExternalPumpBrowserFrm.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;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.SnapshotBtnClick(Sender: TObject);
|
|
begin
|
|
if SaveDialog1.Execute then Panel1.SaveToFile(SaveDialog1.FileName);
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.SnapshotBtnEnter(Sender: TObject);
|
|
begin
|
|
chrmosr.SetFocus(False);
|
|
end;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
procedure TFMXExternalPumpBrowserFrm.HandleSYSCHAR(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if Panel1.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);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.HandleSYSKEYDOWN(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if Panel1.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);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.HandleSYSKEYUP(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if Panel1.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);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.HandleKEYDOWN(const aMessage : TMsg);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
begin
|
|
if Panel1.IsFocused 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(False);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXExternalPumpBrowserFrm.HandleKEYUP(const aMessage : TMsg);
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var
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TempKeyEvent : TCefKeyEvent;
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begin
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if Panel1.IsFocused then
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begin
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if (aMessage.wParam = vkReturn) then
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begin
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TempKeyEvent.kind := KEYEVENT_CHAR;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
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TempKeyEvent.windows_key_code := integer(aMessage.wParam);
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TempKeyEvent.native_key_code := integer(aMessage.lParam);
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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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chrmosr.SendKeyEvent(@TempKeyEvent);
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end;
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TempKeyEvent.kind := KEYEVENT_KEYUP;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
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TempKeyEvent.windows_key_code := integer(aMessage.wParam);
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TempKeyEvent.native_key_code := integer(aMessage.lParam);
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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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chrmosr.SendKeyEvent(@TempKeyEvent);
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end;
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end;
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function TFMXExternalPumpBrowserFrm.HandlePOINTER(const aMessage : TMsg) : boolean;
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begin
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Result := Panel1.IsFocused and
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(GlobalCEFApp <> nil) and
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ArePointerEventsSupported and
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HandlePointerEvent(aMessage);
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end;
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function TFMXExternalPumpBrowserFrm.SendCompMessage(aMsg : cardinal; aWParam : WPARAM; aLParam : LPARAM) : boolean;
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var
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TempHandle : TWinWindowHandle;
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begin
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TempHandle := WindowHandleToPlatform(Handle);
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Result := WinApi.Windows.PostMessage(TempHandle.Wnd, aMsg, aWParam, aLParam);
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end;
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function TFMXExternalPumpBrowserFrm.ArePointerEventsSupported : boolean;
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begin
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Result := FAtLeastWin8 and
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(@GetPointerType <> nil) and
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(@GetPointerTouchInfo <> nil) and
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(@GetPointerPenInfo <> nil);
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end;
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function TFMXExternalPumpBrowserFrm.HandlePointerEvent(const aMessage : TMsg) : boolean;
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const
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PT_TOUCH = 2;
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PT_PEN = 3;
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var
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TempID : uint32;
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TempType : POINTER_INPUT_TYPE;
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begin
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Result := False;
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TempID := LoWord(aMessage.wParam);
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if GetPointerType(TempID, @TempType) then
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case TempType of
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PT_PEN : Result := HandlePenEvent(TempID, aMessage.message);
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PT_TOUCH : Result := HandleTouchEvent(TempID, aMessage.message);
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end;
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end;
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function TFMXExternalPumpBrowserFrm.HandlePenEvent(const aID : uint32; aMsg : cardinal) : boolean;
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var
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TempPenInfo : POINTER_PEN_INFO;
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TempTouchEvent : TCefTouchEvent;
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TempPoint : TPoint;
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TempScale : single;
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begin
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Result := False;
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if not(GetPointerPenInfo(aID, @TempPenInfo)) then exit;
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TempTouchEvent.id := aID;
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TempTouchEvent.x := 0;
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TempTouchEvent.y := 0;
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TempTouchEvent.radius_x := 0;
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TempTouchEvent.radius_y := 0;
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TempTouchEvent.type_ := CEF_TET_RELEASED;
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TempTouchEvent.modifiers := EVENTFLAG_NONE;
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if ((TempPenInfo.penFlags and PEN_FLAG_ERASER) <> 0) then
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TempTouchEvent.pointer_type := CEF_POINTER_TYPE_ERASER
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else
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TempTouchEvent.pointer_type := CEF_POINTER_TYPE_PEN;
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if ((TempPenInfo.penMask and PEN_MASK_PRESSURE) <> 0) then
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TempTouchEvent.pressure := TempPenInfo.pressure / 1024
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else
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TempTouchEvent.pressure := 0;
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if ((TempPenInfo.penMask and PEN_MASK_ROTATION) <> 0) then
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TempTouchEvent.rotation_angle := TempPenInfo.rotation / 180 * Pi
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else
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TempTouchEvent.rotation_angle := 0;
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Result := True;
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case aMsg of
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WM_POINTERDOWN :
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TempTouchEvent.type_ := CEF_TET_PRESSED;
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WM_POINTERUPDATE :
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if ((TempPenInfo.pointerInfo.pointerFlags and POINTER_FLAG_INCONTACT) <> 0) then
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TempTouchEvent.type_ := CEF_TET_MOVED
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else
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exit; // Ignore hover events.
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WM_POINTERUP :
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TempTouchEvent.type_ := CEF_TET_RELEASED;
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end;
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if ((TempPenInfo.pointerInfo.pointerFlags and POINTER_FLAG_CANCELED) <> 0) then
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TempTouchEvent.type_ := CEF_TET_CANCELLED;
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TempScale := Panel1.ScreenScale;
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TempPoint.x := DeviceToLogical(TempPenInfo.pointerInfo.ptPixelLocation.x, TempScale);
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TempPoint.y := DeviceToLogical(TempPenInfo.pointerInfo.ptPixelLocation.y, TempScale);
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TempPoint := Panel1.ScreenToClient(TempPoint);
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TempTouchEvent.x := TempPoint.x;
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TempTouchEvent.y := TempPoint.y;
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chrmosr.SendTouchEvent(@TempTouchEvent);
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end;
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function TFMXExternalPumpBrowserFrm.HandleTouchEvent(const aID : uint32; aMsg : cardinal) : boolean;
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var
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TempTouchInfo : POINTER_TOUCH_INFO;
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TempTouchEvent : TCefTouchEvent;
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TempPoint : TPoint;
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TempScale : single;
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begin
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Result := False;
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if not(GetPointerTouchInfo(aID, @TempTouchInfo)) then exit;
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TempTouchEvent.id := aID;
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TempTouchEvent.x := 0;
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TempTouchEvent.y := 0;
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TempTouchEvent.radius_x := 0;
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TempTouchEvent.radius_y := 0;
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TempTouchEvent.rotation_angle := 0;
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TempTouchEvent.pressure := 0;
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TempTouchEvent.type_ := CEF_TET_RELEASED;
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TempTouchEvent.modifiers := EVENTFLAG_NONE;
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TempTouchEvent.pointer_type := CEF_POINTER_TYPE_TOUCH;
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Result := True;
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case aMsg of
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WM_POINTERDOWN :
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TempTouchEvent.type_ := CEF_TET_PRESSED;
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WM_POINTERUPDATE :
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if ((TempTouchInfo.pointerInfo.pointerFlags and POINTER_FLAG_INCONTACT) <> 0) then
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TempTouchEvent.type_ := CEF_TET_MOVED
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else
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exit; // Ignore hover events.
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WM_POINTERUP :
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TempTouchEvent.type_ := CEF_TET_RELEASED;
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end;
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if ((TempTouchInfo.pointerInfo.pointerFlags and POINTER_FLAG_CANCELED) <> 0) then
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TempTouchEvent.type_ := CEF_TET_CANCELLED;
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TempScale := Panel1.ScreenScale;
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TempPoint.x := DeviceToLogical(TempTouchInfo.pointerInfo.ptPixelLocation.x, TempScale);
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TempPoint.y := DeviceToLogical(TempTouchInfo.pointerInfo.ptPixelLocation.y, TempScale);
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TempPoint := Panel1.ScreenToClient(TempPoint);
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//TempPoint := Panel1.ScreenToClient(TempTouchInfo.pointerInfo.ptPixelLocation);
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TempTouchEvent.x := TempPoint.x;
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TempTouchEvent.y := TempPoint.y;
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chrmosr.SendTouchEvent(@TempTouchEvent);
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end;
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{$ENDIF}
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end.
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