mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-12-04 09:26:52 +02:00
205 lines
6.8 KiB
ObjectPascal
205 lines
6.8 KiB
ObjectPascal
// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
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// browser in Delphi applications.
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//
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// The original license of DCEF3 still applies to CEF4Delphi.
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//
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// For more information about CEF4Delphi visit :
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// https://www.briskbard.com/index.php?lang=en&pageid=cef
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//
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// Copyright © 2020 Salvador Diaz Fau. All rights reserved.
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//
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// ************************************************************************
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// ************ vvvv Original license and comments below vvvv *************
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// ************************************************************************
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(*
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* Delphi Chromium Embedded 3
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*
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* Usage allowed under the restrictions of the Lesser GNU General Public License
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* or alternatively the restrictions of the Mozilla Public License 1.1
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* Unit owner : Henri Gourvest <hgourvest@gmail.com>
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* Web site : http://www.progdigy.com
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* Repository : http://code.google.com/p/delphichromiumembedded/
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* Group : http://groups.google.com/group/delphichromiumembedded
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*
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* Embarcadero Technologies, Inc is not permitted to use or redistribute
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* this source code without explicit permission.
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*
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*)
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unit uCEFBrowserProcessHandler;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
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uses
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes, uCEFApplicationCore;
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type
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TCefBrowserProcessHandlerOwn = class(TCefBaseRefCountedOwn, ICefBrowserProcessHandler)
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protected
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procedure OnContextInitialized; virtual; abstract;
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procedure OnBeforeChildProcessLaunch(const commandLine: ICefCommandLine); virtual; abstract;
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procedure GetPrintHandler(var aHandler : ICefPrintHandler); virtual;
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procedure OnScheduleMessagePumpWork(const delayMs: Int64); virtual; abstract;
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public
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constructor Create; virtual;
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end;
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TCefCustomBrowserProcessHandler = class(TCefBrowserProcessHandlerOwn)
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protected
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FCefApp : TCefApplicationCore;
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procedure OnContextInitialized; override;
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procedure OnBeforeChildProcessLaunch(const commandLine: ICefCommandLine); override;
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procedure OnScheduleMessagePumpWork(const delayMs: Int64); override;
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public
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constructor Create(const aCefApp : TCefApplicationCore); reintroduce;
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destructor Destroy; override;
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end;
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implementation
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uses
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{$IFDEF DELPHI16_UP}
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System.SysUtils,
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{$ELSE}
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SysUtils,
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{$ENDIF}
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uCEFMiscFunctions, uCEFLibFunctions, uCEFCommandLine, uCEFListValue, uCEFConstants;
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procedure cef_browser_process_handler_on_context_initialized(self: PCefBrowserProcessHandler); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefBrowserProcessHandlerOwn) then
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TCefBrowserProcessHandlerOwn(TempObject).OnContextInitialized;
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end;
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procedure cef_browser_process_handler_on_before_child_process_launch(self : PCefBrowserProcessHandler;
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command_line : PCefCommandLine); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefBrowserProcessHandlerOwn) then
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TCefBrowserProcessHandlerOwn(TempObject).OnBeforeChildProcessLaunch(TCefCommandLineRef.UnWrap(command_line));
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end;
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function cef_browser_process_handler_get_print_handler(self: PCefBrowserProcessHandler): PCefPrintHandler; stdcall;
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var
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TempObject : TObject;
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TempHandler : ICefPrintHandler;
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begin
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Result := nil;
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefBrowserProcessHandlerOwn) then
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try
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TCefBrowserProcessHandlerOwn(TempObject).GetPrintHandler(TempHandler);
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if (TempHandler <> nil) then Result := TempHandler.Wrap;
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finally
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TempHandler := nil;
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end;
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end;
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procedure cef_browser_process_handler_on_schedule_message_pump_work(self : PCefBrowserProcessHandler;
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delay_ms : Int64); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefBrowserProcessHandlerOwn) then
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TCefBrowserProcessHandlerOwn(TempObject).OnScheduleMessagePumpWork(delay_ms);
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end;
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constructor TCefBrowserProcessHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefBrowserProcessHandler));
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with PCefBrowserProcessHandler(FData)^ do
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begin
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on_context_initialized := {$IFDEF FPC}@{$ENDIF}cef_browser_process_handler_on_context_initialized;
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on_before_child_process_launch := {$IFDEF FPC}@{$ENDIF}cef_browser_process_handler_on_before_child_process_launch;
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get_print_handler := {$IFDEF FPC}@{$ENDIF}cef_browser_process_handler_get_print_handler;
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on_schedule_message_pump_work := {$IFDEF FPC}@{$ENDIF}cef_browser_process_handler_on_schedule_message_pump_work;
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end;
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end;
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procedure TCefBrowserProcessHandlerOwn.GetPrintHandler(var aHandler : ICefPrintHandler);
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begin
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aHandler := nil; // only linux
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end;
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// TCefCustomBrowserProcessHandler
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constructor TCefCustomBrowserProcessHandler.Create(const aCefApp : TCefApplicationCore);
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begin
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inherited Create;
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FCefApp := aCefApp;
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end;
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destructor TCefCustomBrowserProcessHandler.Destroy;
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begin
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FCefApp := nil;
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inherited Destroy;
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end;
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procedure TCefCustomBrowserProcessHandler.OnContextInitialized;
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnContextInitialized;
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomBrowserProcessHandler.OnContextInitialized', e) then raise;
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end;
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end;
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procedure TCefCustomBrowserProcessHandler.OnBeforeChildProcessLaunch(const commandLine: ICefCommandLine);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnBeforeChildProcessLaunch(commandLine);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomBrowserProcessHandler.OnBeforeChildProcessLaunch', e) then raise;
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end;
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end;
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procedure TCefCustomBrowserProcessHandler.OnScheduleMessagePumpWork(const delayMs: Int64);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnScheduleMessagePumpWork(delayMs);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomBrowserProcessHandler.OnScheduleMessagePumpWork', e) then raise;
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end;
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end;
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end.
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