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New ConsoleBrowser demo
This commit is contained in:
Salvador Díaz Fau
840
demos/ConsoleBrowser/uWebBrowser.pas
Normal file
840
demos/ConsoleBrowser/uWebBrowser.pas
Normal file
@ -0,0 +1,840 @@
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// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF3 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 � 2018 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 uWebBrowser;
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{$I cef.inc}
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interface
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uses
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{$IFDEF DELPHI16_UP}
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Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes,
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System.SyncObjs, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls,
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Vcl.ExtCtrls, Vcl.AppEvnts,
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{$ELSE}
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Windows, Messages, SysUtils, Variants, Classes, SyncObjs,
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Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, AppEvnts,
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{$ENDIF}
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uCEFChromium, uCEFTypes, uCEFInterfaces, uCEFConstants, uBufferPanel;
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type
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TWebBrowserFrm = class(TForm)
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chrmosr: TChromium;
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AppEvents: TApplicationEvents;
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SaveDialog1: TSaveDialog;
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Timer1: TTimer;
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Panel1: TBufferPanel;
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procedure AppEventsMessage(var Msg: tagMSG; var Handled: Boolean);
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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: Integer);
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procedure Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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procedure Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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procedure Panel1MouseLeave(Sender: TObject);
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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 FormAfterMonitorDpiChanged(Sender: TObject; OldDPI, NewDPI: Integer);
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procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
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procedure chrmosrPaint(Sender: TObject; const browser: ICefBrowser; kind: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; width, height: Integer);
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procedure chrmosrCursorChange(Sender: TObject; const browser: ICefBrowser; cursor: HICON; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo);
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procedure chrmosrGetViewRect(Sender: TObject; const browser: ICefBrowser; var rect: TCefRect; out Result: Boolean);
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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 chrmosrAfterCreated(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 noJavascriptAccess: Boolean; var Result: Boolean);
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procedure chrmosrClose(Sender: TObject; const browser: ICefBrowser; out Result: Boolean);
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procedure chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
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procedure SnapshotBtnClick(Sender: TObject);
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procedure Timer1Timer(Sender: TObject);
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procedure SnapshotBtnEnter(Sender: TObject);
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procedure ComboBox1Enter(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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FLastClickCount : integer;
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FLastClickTime : integer;
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FLastClickPoint : TPoint;
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FLastClickButton : TMouseButton;
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function getModifiers(Shift: TShiftState): TCefEventFlags;
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function GetButton(Button: TMouseButton): TCefMouseButtonType;
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procedure DoResize;
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procedure InitializeLastClick;
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function CancelPreviousClick(x, y : integer; var aCurrentTime : integer) : boolean;
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procedure WMMove(var aMessage : TWMMove); message WM_MOVE;
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procedure WMMoving(var aMessage : TMessage); message WM_MOVING;
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procedure WMCaptureChanged(var aMessage : TMessage); message WM_CAPTURECHANGED;
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procedure WMCancelMode(var aMessage : TMessage); message WM_CANCELMODE;
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procedure WMEnterMenuLoop(var aMessage: TMessage); message WM_ENTERMENULOOP;
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procedure WMExitMenuLoop(var aMessage: TMessage); message WM_EXITMENULOOP;
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procedure BrowserCreatedMsg(var aMessage : TMessage); message CEF_AFTERCREATED;
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procedure PendingResizeMsg(var aMessage : TMessage); message CEF_PENDINGRESIZE;
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public
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{ Public declarations }
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end;
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var
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WebBrowserFrm: TWebBrowserFrm;
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implementation
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{$R *.dfm}
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uses
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{$IFDEF DELPHI16_UP}
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System.Math,
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{$ELSE}
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Math,
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{$ENDIF}
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uCEFMiscFunctions, uCEFApplication;
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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 calls chrmosr.CloseBrowser(True).
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// 2- chrmosr.CloseBrowser(True) will trigger chrmosr.OnClose and we have to
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// set "Result" to false and CEF3 will destroy the internal browser immediately.
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// 3- chrmosr.OnBeforeClose is triggered because the internal browser was destroyed.
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// Now we set FCanClose to True and send WM_CLOSE to the form.
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procedure TWebBrowserFrm.AppEventsMessage(var Msg: tagMSG; var Handled: Boolean);
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var
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TempKeyEvent : TCefKeyEvent;
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TempMouseEvent : TCefMouseEvent;
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begin
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case Msg.message of
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WM_SYSCHAR :
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if Panel1.Focused then
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begin
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TempKeyEvent.kind := KEYEVENT_CHAR;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
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TempKeyEvent.windows_key_code := Msg.wParam;
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TempKeyEvent.native_key_code := Msg.lParam;
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TempKeyEvent.is_system_key := ord(True);
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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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Handled := True;
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end;
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WM_SYSKEYDOWN :
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if Panel1.Focused then
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begin
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TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
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TempKeyEvent.windows_key_code := Msg.wParam;
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TempKeyEvent.native_key_code := Msg.lParam;
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TempKeyEvent.is_system_key := ord(True);
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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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Handled := True;
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end;
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WM_SYSKEYUP :
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if Panel1.Focused then
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begin
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TempKeyEvent.kind := KEYEVENT_KEYUP;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
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TempKeyEvent.windows_key_code := Msg.wParam;
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TempKeyEvent.native_key_code := Msg.lParam;
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TempKeyEvent.is_system_key := ord(True);
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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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Handled := True;
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end;
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WM_KEYDOWN :
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if Panel1.Focused then
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begin
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TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
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TempKeyEvent.windows_key_code := Msg.wParam;
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TempKeyEvent.native_key_code := Msg.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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Handled := (Msg.wParam = VK_TAB);
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end;
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WM_KEYUP :
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if Panel1.Focused then
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begin
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TempKeyEvent.kind := KEYEVENT_KEYUP;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
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TempKeyEvent.windows_key_code := Msg.wParam;
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TempKeyEvent.native_key_code := Msg.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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Handled := True;
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end;
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WM_CHAR :
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if Panel1.Focused then
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begin
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TempKeyEvent.kind := KEYEVENT_CHAR;
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TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
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TempKeyEvent.windows_key_code := Msg.wParam;
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TempKeyEvent.native_key_code := Msg.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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Handled := True;
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end;
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WM_MOUSEWHEEL :
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if Panel1.Focused and (GlobalCEFApp <> nil) then
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begin
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TempMouseEvent.x := Msg.lParam and $FFFF;
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TempMouseEvent.y := Msg.lParam shr 16;
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TempMouseEvent.modifiers := GetCefMouseModifiers(Msg.wParam);
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DeviceToLogical(TempMouseEvent, GlobalCEFApp.DeviceScaleFactor);
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chrmosr.SendMouseWheelEvent(@TempMouseEvent, 0, int16(Msg.wParam shr 16));
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end;
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end;
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end;
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procedure TWebBrowserFrm.GoBtnEnter(Sender: TObject);
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begin
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chrmosr.SendFocusEvent(False);
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end;
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procedure TWebBrowserFrm.chrmosrAfterCreated(Sender: TObject; const browser: ICefBrowser);
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begin
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PostMessage(Handle, CEF_AFTERCREATED, 0, 0);
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end;
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procedure TWebBrowserFrm.chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
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begin
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FCanClose := True;
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PostMessage(Handle, WM_CLOSE, 0, 0);
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end;
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procedure TWebBrowserFrm.chrmosrBeforePopup(Sender : TObject;
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const browser : ICefBrowser;
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const frame : ICefFrame;
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const targetUrl : ustring;
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const targetFrameName : ustring;
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targetDisposition : TCefWindowOpenDisposition;
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userGesture : Boolean;
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const popupFeatures : TCefPopupFeatures;
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var windowInfo : TCefWindowInfo;
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var client : ICefClient;
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var settings : TCefBrowserSettings;
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var noJavascriptAccess : Boolean;
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var Result : Boolean);
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begin
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// For simplicity, this demo blocks all popup windows and new tabs
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Result := (targetDisposition in [WOD_NEW_FOREGROUND_TAB, WOD_NEW_BACKGROUND_TAB, WOD_NEW_POPUP, WOD_NEW_WINDOW]);
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end;
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procedure TWebBrowserFrm.chrmosrClose(Sender: TObject; const browser: ICefBrowser; out Result: Boolean);
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begin
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Result := False;
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end;
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procedure TWebBrowserFrm.chrmosrCursorChange(Sender : TObject;
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const browser : ICefBrowser;
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cursor : HICON;
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cursorType : TCefCursorType;
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const customCursorInfo : PCefCursorInfo);
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begin
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Panel1.Cursor := GefCursorToWindowsCursor(cursorType);
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end;
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procedure TWebBrowserFrm.chrmosrGetScreenInfo(Sender : TObject;
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const browser : ICefBrowser;
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var screenInfo : TCefScreenInfo;
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out Result : Boolean);
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var
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TempRect : TCEFRect;
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begin
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if (GlobalCEFApp <> nil) then
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begin
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TempRect.x := 0;
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TempRect.y := 0;
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TempRect.width := DeviceToLogical(Panel1.Width, GlobalCEFApp.DeviceScaleFactor);
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TempRect.height := DeviceToLogical(Panel1.Height, GlobalCEFApp.DeviceScaleFactor);
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screenInfo.device_scale_factor := GlobalCEFApp.DeviceScaleFactor;
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screenInfo.depth := 0;
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screenInfo.depth_per_component := 0;
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screenInfo.is_monochrome := Ord(False);
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screenInfo.rect := TempRect;
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screenInfo.available_rect := TempRect;
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Result := True;
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end
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else
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Result := False;
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end;
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procedure TWebBrowserFrm.chrmosrGetScreenPoint(Sender : TObject;
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const browser : ICefBrowser;
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viewX : Integer;
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viewY : Integer;
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var screenX : Integer;
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var screenY : Integer;
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out Result : Boolean);
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var
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TempScreenPt, TempViewPt : TPoint;
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begin
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if (GlobalCEFApp <> nil) then
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begin
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TempViewPt.x := LogicalToDevice(viewX, GlobalCEFApp.DeviceScaleFactor);
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TempViewPt.y := LogicalToDevice(viewY, GlobalCEFApp.DeviceScaleFactor);
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TempScreenPt := Panel1.ClientToScreen(TempViewPt);
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screenX := TempScreenPt.x;
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screenY := TempScreenPt.y;
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Result := True;
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end
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else
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Result := False;
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end;
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procedure TWebBrowserFrm.chrmosrGetViewRect(Sender : TObject;
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const browser : ICefBrowser;
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var rect : TCefRect;
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out Result : Boolean);
|
||||
begin
|
||||
if (GlobalCEFApp <> nil) then
|
||||
begin
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||||
rect.x := 0;
|
||||
rect.y := 0;
|
||||
rect.width := DeviceToLogical(Panel1.Width, GlobalCEFApp.DeviceScaleFactor);
|
||||
rect.height := DeviceToLogical(Panel1.Height, GlobalCEFApp.DeviceScaleFactor);
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Result := True;
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||||
end
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else
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||||
Result := False;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.chrmosrPaint(Sender : TObject;
|
||||
const browser : ICefBrowser;
|
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kind : TCefPaintElementType;
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dirtyRectsCount : NativeUInt;
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||||
const dirtyRects : PCefRectArray;
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||||
const buffer : Pointer;
|
||||
width : Integer;
|
||||
height : Integer);
|
||||
var
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||||
src, dst: PByte;
|
||||
i, j, TempLineSize, TempSrcOffset, TempDstOffset, SrcStride, DstStride : Integer;
|
||||
n : NativeUInt;
|
||||
TempWidth, TempHeight, TempScanlineSize : integer;
|
||||
TempBufferBits : Pointer;
|
||||
TempForcedResize : boolean;
|
||||
begin
|
||||
try
|
||||
FResizeCS.Acquire;
|
||||
TempForcedResize := False;
|
||||
|
||||
if Panel1.BeginBufferDraw then
|
||||
begin
|
||||
if (kind = 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;
|
||||
FPopUpBitmap.PixelFormat := pf32bit;
|
||||
FPopUpBitmap.HandleType := bmDIB;
|
||||
FPopUpBitmap.Width := width;
|
||||
FPopUpBitmap.Height := height;
|
||||
end;
|
||||
|
||||
TempWidth := FPopUpBitmap.Width;
|
||||
TempHeight := FPopUpBitmap.Height;
|
||||
TempScanlineSize := FPopUpBitmap.Width * SizeOf(TRGBQuad);
|
||||
TempBufferBits := FPopUpBitmap.Scanline[pred(FPopUpBitmap.Height)];
|
||||
end
|
||||
else
|
||||
begin
|
||||
TempForcedResize := Panel1.UpdateBufferDimensions(Width, Height) or not(Panel1.BufferIsResized(False));
|
||||
TempWidth := Panel1.BufferWidth;
|
||||
TempHeight := Panel1.BufferHeight;
|
||||
TempScanlineSize := Panel1.ScanlineSize;
|
||||
TempBufferBits := Panel1.BufferBits;
|
||||
end;
|
||||
|
||||
if (TempBufferBits <> nil) then
|
||||
begin
|
||||
SrcStride := Width * SizeOf(TRGBQuad);
|
||||
DstStride := - TempScanlineSize;
|
||||
|
||||
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);
|
||||
TempDstOffset := ((TempScanlineSize * pred(TempHeight)) - (dirtyRects[n].y * TempScanlineSize)) +
|
||||
(dirtyRects[n].x * SizeOf(TRGBQuad));
|
||||
|
||||
src := @PByte(buffer)[TempSrcOffset];
|
||||
dst := @PByte(TempBufferBits)[TempDstOffset];
|
||||
|
||||
i := 0;
|
||||
j := min(dirtyRects[n].height, TempHeight - dirtyRects[n].y);
|
||||
|
||||
while (i < j) do
|
||||
begin
|
||||
Move(src^, dst^, TempLineSize);
|
||||
|
||||
Inc(dst, DstStride);
|
||||
Inc(src, SrcStride);
|
||||
inc(i);
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
|
||||
inc(n);
|
||||
end;
|
||||
|
||||
if FShowPopup and (FPopUpBitmap <> nil) then
|
||||
Panel1.BufferDraw(FPopUpRect.Left, FPopUpRect.Top, FPopUpBitmap);
|
||||
end;
|
||||
|
||||
Panel1.EndBufferDraw;
|
||||
Panel1.InvalidatePanel;
|
||||
|
||||
if (kind = PET_VIEW) then
|
||||
begin
|
||||
if TempForcedResize or FPendingResize then PostMessage(Handle, CEF_PENDINGRESIZE, 0, 0);
|
||||
|
||||
FResizing := False;
|
||||
FPendingResize := False;
|
||||
end;
|
||||
end;
|
||||
finally
|
||||
FResizeCS.Release;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.chrmosrPopupShow(Sender : TObject;
|
||||
const browser : ICefBrowser;
|
||||
show : Boolean);
|
||||
begin
|
||||
if show then
|
||||
FShowPopUp := True
|
||||
else
|
||||
begin
|
||||
FShowPopUp := False;
|
||||
FPopUpRect := rect(0, 0, 0, 0);
|
||||
|
||||
if (chrmosr <> nil) then chrmosr.Invalidate(PET_VIEW);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.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 TWebBrowserFrm.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 TWebBrowserFrm.ComboBox1Enter(Sender: TObject);
|
||||
begin
|
||||
chrmosr.SendFocusEvent(False);
|
||||
end;
|
||||
|
||||
function TWebBrowserFrm.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 TWebBrowserFrm.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 TWebBrowserFrm.WMMove(var aMessage : TWMMove);
|
||||
begin
|
||||
inherited;
|
||||
|
||||
if (chrmosr <> nil) then chrmosr.NotifyMoveOrResizeStarted;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.WMMoving(var aMessage : TMessage);
|
||||
begin
|
||||
inherited;
|
||||
|
||||
if (chrmosr <> nil) then chrmosr.NotifyMoveOrResizeStarted;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.WMCaptureChanged(var aMessage : TMessage);
|
||||
begin
|
||||
inherited;
|
||||
|
||||
if (chrmosr <> nil) then chrmosr.SendCaptureLostEvent;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.WMCancelMode(var aMessage : TMessage);
|
||||
begin
|
||||
inherited;
|
||||
|
||||
if (chrmosr <> nil) then chrmosr.SendCaptureLostEvent;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.WMEnterMenuLoop(var aMessage: TMessage);
|
||||
begin
|
||||
inherited;
|
||||
|
||||
if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := True;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.WMExitMenuLoop(var aMessage: TMessage);
|
||||
begin
|
||||
inherited;
|
||||
|
||||
if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := False;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.BrowserCreatedMsg(var aMessage : TMessage);
|
||||
begin
|
||||
Caption := 'DLL OSR Browser';
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.FormAfterMonitorDpiChanged(Sender: TObject; OldDPI, NewDPI: Integer);
|
||||
begin
|
||||
if (chrmosr <> nil) then
|
||||
begin
|
||||
chrmosr.NotifyScreenInfoChanged;
|
||||
chrmosr.WasResized;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
|
||||
begin
|
||||
CanClose := FCanClose;
|
||||
|
||||
if FClosing then
|
||||
GlobalCEFApp.QuitMessageLoop
|
||||
else
|
||||
begin
|
||||
FClosing := True;
|
||||
Visible := False;
|
||||
chrmosr.CloseBrowser(True);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.FormCreate(Sender: TObject);
|
||||
begin
|
||||
FPopUpBitmap := nil;
|
||||
FPopUpRect := rect(0, 0, 0, 0);
|
||||
FShowPopUp := False;
|
||||
FResizing := False;
|
||||
FPendingResize := False;
|
||||
FCanClose := False;
|
||||
FClosing := False;
|
||||
FResizeCS := TCriticalSection.Create;
|
||||
|
||||
chrmosr.DefaultURL := 'https://www.google.com';
|
||||
|
||||
InitializeLastClick;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.FormDestroy(Sender: TObject);
|
||||
begin
|
||||
chrmosr.ShutdownDragAndDrop;
|
||||
|
||||
if (FPopUpBitmap <> nil) then FreeAndNil(FPopUpBitmap);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.FormHide(Sender: TObject);
|
||||
begin
|
||||
chrmosr.SendFocusEvent(False);
|
||||
chrmosr.WasHidden(True);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.FormShow(Sender: TObject);
|
||||
begin
|
||||
if chrmosr.Initialized then
|
||||
begin
|
||||
chrmosr.WasHidden(False);
|
||||
chrmosr.SendFocusEvent(True);
|
||||
end
|
||||
else
|
||||
begin
|
||||
// opaque white background color
|
||||
chrmosr.Options.BackgroundColor := CefColorSetARGB($FF, $FF, $FF, $FF);
|
||||
|
||||
if chrmosr.CreateBrowser(nil, '') then
|
||||
chrmosr.InitializeDragAndDrop(Panel1)
|
||||
else
|
||||
Timer1.Enabled := True;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1Click(Sender: TObject);
|
||||
begin
|
||||
Panel1.SetFocus;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
||||
var
|
||||
TempEvent : TCefMouseEvent;
|
||||
TempTime : integer;
|
||||
begin
|
||||
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
||||
begin
|
||||
Panel1.SetFocus;
|
||||
|
||||
if not(CancelPreviousClick(x, y, TempTime)) and (Button = FLastClickButton) then
|
||||
inc(FLastClickCount)
|
||||
else
|
||||
begin
|
||||
FLastClickPoint.x := x;
|
||||
FLastClickPoint.y := y;
|
||||
FLastClickCount := 1;
|
||||
end;
|
||||
|
||||
FLastClickTime := TempTime;
|
||||
FLastClickButton := Button;
|
||||
|
||||
TempEvent.x := X;
|
||||
TempEvent.y := Y;
|
||||
TempEvent.modifiers := getModifiers(Shift);
|
||||
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
||||
chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), False, FLastClickCount);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1MouseLeave(Sender: TObject);
|
||||
var
|
||||
TempEvent : TCefMouseEvent;
|
||||
TempPoint : TPoint;
|
||||
TempTime : integer;
|
||||
begin
|
||||
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
||||
begin
|
||||
GetCursorPos(TempPoint);
|
||||
TempPoint := Panel1.ScreenToclient(TempPoint);
|
||||
|
||||
if CancelPreviousClick(TempPoint.x, TempPoint.y, TempTime) then InitializeLastClick;
|
||||
|
||||
TempEvent.x := TempPoint.x;
|
||||
TempEvent.y := TempPoint.y;
|
||||
TempEvent.modifiers := GetCefMouseModifiers;
|
||||
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
||||
chrmosr.SendMouseMoveEvent(@TempEvent, True);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
|
||||
var
|
||||
TempEvent : TCefMouseEvent;
|
||||
TempTime : integer;
|
||||
begin
|
||||
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
||||
begin
|
||||
if CancelPreviousClick(x, y, TempTime) then InitializeLastClick;
|
||||
|
||||
TempEvent.x := x;
|
||||
TempEvent.y := y;
|
||||
TempEvent.modifiers := getModifiers(Shift);
|
||||
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
||||
chrmosr.SendMouseMoveEvent(@TempEvent, False);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
||||
var
|
||||
TempEvent : TCefMouseEvent;
|
||||
begin
|
||||
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
||||
begin
|
||||
TempEvent.x := X;
|
||||
TempEvent.y := Y;
|
||||
TempEvent.modifiers := getModifiers(Shift);
|
||||
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
||||
chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), True, FLastClickCount);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1Resize(Sender: TObject);
|
||||
begin
|
||||
DoResize;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.PendingResizeMsg(var aMessage : TMessage);
|
||||
begin
|
||||
DoResize;
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.DoResize;
|
||||
begin
|
||||
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 TWebBrowserFrm.InitializeLastClick;
|
||||
begin
|
||||
FLastClickCount := 0;
|
||||
FLastClickTime := 0;
|
||||
FLastClickPoint.x := 0;
|
||||
FLastClickPoint.y := 0;
|
||||
FLastClickButton := mbLeft;
|
||||
end;
|
||||
|
||||
function TWebBrowserFrm.CancelPreviousClick(x, y : integer; var aCurrentTime : integer) : boolean;
|
||||
begin
|
||||
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);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1Enter(Sender: TObject);
|
||||
begin
|
||||
chrmosr.SendFocusEvent(True);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Panel1Exit(Sender: TObject);
|
||||
begin
|
||||
chrmosr.SendFocusEvent(False);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.SnapshotBtnClick(Sender: TObject);
|
||||
begin
|
||||
if SaveDialog1.Execute then Panel1.SaveToFile(SaveDialog1.FileName);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.SnapshotBtnEnter(Sender: TObject);
|
||||
begin
|
||||
chrmosr.SendFocusEvent(False);
|
||||
end;
|
||||
|
||||
procedure TWebBrowserFrm.Timer1Timer(Sender: TObject);
|
||||
begin
|
||||
Timer1.Enabled := False;
|
||||
|
||||
if chrmosr.CreateBrowser(nil, '') then
|
||||
chrmosr.InitializeDragAndDrop(Panel1)
|
||||
else
|
||||
if not(chrmosr.Initialized) then Timer1.Enabled := True;
|
||||
end;
|
||||
|
||||
end.
|
||||
Reference in New Issue
Block a user