// ************************************************************************ // ***************************** CEF4Delphi ******************************* // ************************************************************************ // // CEF4Delphi is based on DCEF3 which uses CEF3 to embed a chromium-based // browser in Delphi applications. // // The original license of DCEF3 still applies to CEF4Delphi. // // For more information about CEF4Delphi visit : // https://www.briskbard.com/index.php?lang=en&pageid=cef // // Copyright © 2017 Salvador Díaz Fau. All rights reserved. // // ************************************************************************ // ************ vvvv Original license and comments below vvvv ************* // ************************************************************************ (* * Delphi Chromium Embedded 3 * * Usage allowed under the restrictions of the Lesser GNU General Public License * or alternatively the restrictions of the Mozilla Public License 1.1 * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for * the specific language governing rights and limitations under the License. * * Unit owner : Henri Gourvest * Web site : http://www.progdigy.com * Repository : http://code.google.com/p/delphichromiumembedded/ * Group : http://groups.google.com/group/delphichromiumembedded * * Embarcadero Technologies, Inc is not permitted to use or redistribute * this source code without explicit permission. * *) unit uPostDataInspector; {$I cef.inc} interface uses {$IFDEF DELPHI16_UP} Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ExtCtrls, Vcl.ComCtrls, {$ELSE} Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, ComCtrls, {$ENDIF} uCEFChromium, uCEFWindowParent, uCEFInterfaces, uCEFApplication, uCEFTypes, uCEFConstants; const POSTDATA_MSGNAME = 'postdatainfo'; type TPostDataInspectorFrm = class(TForm) StatusBar1: TStatusBar; CEFWindowParent1: TCEFWindowParent; Chromium1: TChromium; NavControlPnl: TPanel; Edit1: TEdit; GoBtn: TButton; Timer1: TTimer; procedure GoBtnClick(Sender: TObject); procedure FormShow(Sender: TObject); procedure Chromium1ProcessMessageReceived(Sender: TObject; const browser: ICefBrowser; sourceProcess: TCefProcessId; const message: ICefProcessMessage; out Result: Boolean); procedure Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser); procedure Timer1Timer(Sender: TObject); protected procedure BrowserCreatedMsg(var aMessage : TMessage); message CEF_AFTERCREATED; procedure WMMove(var aMessage : TWMMove); message WM_MOVE; procedure WMMoving(var aMessage : TMessage); message WM_MOVING; public { Public declarations } end; var PostDataInspectorFrm: TPostDataInspectorFrm; implementation {$R *.dfm} // This demo shows an alternative way to inspect the POST data in read only mode. // This data is not always available in the request of TChromium.OnBeforeBrowse // so this demo uses the TCefCustomRenderProcessHandler.OnBeforeNavigationEvent event // and sends the results in a process message. // That message is received in the Chromium1ProcessMessageReceived function. // If you need more control over the POST data register an scheme. // See the SchemeRegistrationBrowser demo. procedure TPostDataInspectorFrm.Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser); begin PostMessage(Handle, CEF_AFTERCREATED, 0, 0); end; procedure TPostDataInspectorFrm.Chromium1ProcessMessageReceived( Sender: TObject; const browser: ICefBrowser; sourceProcess: TCefProcessId; const message: ICefProcessMessage; out Result: Boolean); begin Result := False; if (message = nil) or (message.ArgumentList = nil) then exit; // Many of these events are received in different threads and the VCL // doesn't like to create and destroy components in different threads. // It's safer to store the results and send a message to the main thread to show them. // The message names is also used in the ProcessHandler_OnBeforeNavigationEvent function of the DPR file. if (message.Name = POSTDATA_MSGNAME) then begin StatusBar1.Panels[0].Text := message.ArgumentList.GetString(0); // this doesn't create/destroy components Result := True; end; end; procedure TPostDataInspectorFrm.FormShow(Sender: TObject); begin // GlobalCEFApp.GlobalContextInitialized has to be TRUE before creating any browser // If it's not initialized yet, we use a simple timer to create the browser later. if not(Chromium1.CreateBrowser(CEFWindowParent1, '')) then Timer1.Enabled := True; end; procedure TPostDataInspectorFrm.GoBtnClick(Sender: TObject); begin Chromium1.LoadURL(Edit1.Text); end; procedure TPostDataInspectorFrm.Timer1Timer(Sender: TObject); begin Timer1.Enabled := False; if not(Chromium1.CreateBrowser(CEFWindowParent1, '')) then Timer1.Enabled := True; end; procedure TPostDataInspectorFrm.WMMove(var aMessage : TWMMove); begin inherited; if (Chromium1 <> nil) then Chromium1.NotifyMoveOrResizeStarted; end; procedure TPostDataInspectorFrm.WMMoving(var aMessage : TMessage); begin inherited; if (Chromium1 <> nil) then Chromium1.NotifyMoveOrResizeStarted; end; procedure TPostDataInspectorFrm.BrowserCreatedMsg(var aMessage : TMessage); begin CEFWindowParent1.UpdateSize; NavControlPnl.Enabled := True; GoBtn.Click; end; end.