mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-16 08:15:55 +01:00
379272e643
- Update to CEF 3.3112.1659.gfef43e0 - Bug Fix #49 - Added longer error messages if the CEF binaries are not available. - Added the AfterCreated event in TChromiumWindow. - Added a 'Take a snapshot' button in the OSR demo.
147 lines
4.7 KiB
ObjectPascal
147 lines
4.7 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 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 © 2017 Salvador Díaz 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 uMainForm;
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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, Vcl.Graphics,
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Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ExtCtrls,
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{$ELSE}
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Windows, Messages, SysUtils, Variants, Classes, Graphics,
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Controls, Forms, Dialogs, StdCtrls, ExtCtrls,
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{$ENDIF}
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uCEFChromium, uCEFWindowParent, uCEFChromiumWindow, uCEFInterfaces, uCustomResourceHandler, uCEFConstants;
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type
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TMainForm = class(TForm)
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ChromiumWindow1: TChromiumWindow;
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AddressBarPnl: TPanel;
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Edit1: TEdit;
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Button1: TButton;
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procedure FormShow(Sender: TObject);
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procedure Button1Click(Sender: TObject);
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private
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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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protected
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procedure Chromium_OnAfterCreated(Sender: TObject);
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procedure Chromium_OnGetResourceHandler(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; out Result: ICefResourceHandler);
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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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MainForm: TMainForm;
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implementation
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{$R *.dfm}
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uses
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uCEFMiscFunctions;
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procedure TMainForm.Button1Click(Sender: TObject);
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begin
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ChromiumWindow1.LoadURL(Edit1.Text);
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end;
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procedure TMainForm.FormShow(Sender: TObject);
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begin
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ChromiumWindow1.OnAfterCreated := Chromium_OnAfterCreated;
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ChromiumWindow1.ChromiumBrowser.OnGetResourceHandler := Chromium_OnGetResourceHandler;
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ChromiumWindow1.CreateBrowser;
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end;
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procedure TMainForm.Chromium_OnAfterCreated(Sender: TObject);
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begin
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ChromiumWindow1.UpdateSize;
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AddressBarPnl.Enabled := True;
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end;
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procedure TMainForm.Chromium_OnGetResourceHandler(Sender : TObject;
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const browser : ICefBrowser;
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const frame : ICefFrame;
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const request : ICefRequest;
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out Result : ICefResourceHandler);
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var
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TempStream : TStringStream;
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begin
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// This event is called from the IO thread. Use mutexes if necessary.
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TempStream := nil;
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try
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try
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TempStream := TStringStream.Create('<!DOCTYPE html><html><body><p>test</p></body></html>', TEncoding.UTF8, false);
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Result := TCustomResourceHandler.Create(browser, frame, '', request, TStream(TempStream), CefGetMimeType('html'));
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except
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on e : exception do
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if CustomExceptionHandler('TMainForm.Chromium_OnGetResourceHandler', e) then raise;
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end;
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finally
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if (TempStream <> nil) then FreeAndNil(TempStream);
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end;
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end;
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procedure TMainForm.WMMove(var aMessage : TWMMove);
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begin
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inherited;
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if (ChromiumWindow1 <> nil) and
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(ChromiumWindow1.ChromiumBrowser <> nil) then
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ChromiumWindow1.ChromiumBrowser.NotifyMoveOrResizeStarted;
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end;
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procedure TMainForm.WMMoving(var aMessage : TMessage);
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begin
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inherited;
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if (ChromiumWindow1 <> nil) and
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(ChromiumWindow1.ChromiumBrowser <> nil) then
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ChromiumWindow1.ChromiumBrowser.NotifyMoveOrResizeStarted;
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end;
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end.
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