mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-24 08:02:15 +02:00
03f9e9a1b9
Fixed issue #404 : Memory leak with empty TChromiumDefaultUrl Fixed crash in RasperryPi OS 64 bits
418 lines
18 KiB
ObjectPascal
418 lines
18 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 © 2022 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 uCEFRenderProcessHandler;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$I cef.inc}
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{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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interface
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uses
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{$IFDEF DELPHI16_UP}
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System.Classes,
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{$ELSE}
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Classes,
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{$ENDIF}
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes, uCEFListValue, uCEFBrowser, uCEFFrame, uCEFRequest,
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uCEFv8Context, uCEFv8Exception, uCEFv8StackTrace, uCEFDomNode, uCEFProcessMessage, uCEFApplicationCore;
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type
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TCefRenderProcessHandlerOwn = class(TCefBaseRefCountedOwn, ICefRenderProcessHandler)
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protected
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procedure OnWebKitInitialized; virtual; abstract;
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procedure OnBrowserCreated(const browser: ICefBrowser; const extra_info: ICefDictionaryValue); virtual; abstract;
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procedure OnBrowserDestroyed(const browser: ICefBrowser); virtual; abstract;
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function GetLoadHandler: ICefLoadHandler; virtual;
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procedure OnContextCreated(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context); virtual; abstract;
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procedure OnContextReleased(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context); virtual; abstract;
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procedure OnUncaughtException(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context; const V8Exception: ICefV8Exception; const stackTrace: ICefV8StackTrace); virtual; abstract;
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procedure OnFocusedNodeChanged(const browser: ICefBrowser; const frame: ICefFrame; const node: ICefDomNode); virtual; abstract;
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function OnProcessMessageReceived(const browser: ICefBrowser; const frame: ICefFrame; sourceProcess: TCefProcessId; const aMessage: ICefProcessMessage): Boolean; virtual;
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procedure RemoveReferences; virtual; abstract;
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public
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constructor Create; virtual;
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end;
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TCefCustomRenderProcessHandler = class(TCefRenderProcessHandlerOwn)
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protected
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FCefApp : TCefApplicationCore;
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FLoadHandler : ICefLoadHandler;
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procedure OnWebKitInitialized; override;
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procedure OnBrowserCreated(const browser: ICefBrowser; const extra_info: ICefDictionaryValue); override;
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procedure OnBrowserDestroyed(const browser: ICefBrowser); override;
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function GetLoadHandler: ICefLoadHandler; override;
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procedure OnContextCreated(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context); override;
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procedure OnContextReleased(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context); override;
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procedure OnUncaughtException(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context; const V8Exception: ICefV8Exception; const stackTrace: ICefV8StackTrace); override;
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procedure OnFocusedNodeChanged(const browser: ICefBrowser; const frame: ICefFrame; const node: ICefDomNode); override;
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function OnProcessMessageReceived(const browser: ICefBrowser; const frame: ICefFrame; sourceProcess: TCefProcessId; const aMessage : ICefProcessMessage): Boolean; override;
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procedure RemoveReferences; 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, uCEFConstants, uCEFLoadHandler, uCEFDictionaryValue;
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procedure cef_render_process_handler_on_web_kit_initialized(self: PCefRenderProcessHandler); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnWebKitInitialized;
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end;
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procedure cef_render_process_handler_on_browser_created(self : PCefRenderProcessHandler;
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browser : PCefBrowser;
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extra_info : PCefDictionaryValue); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnBrowserCreated(TCefBrowserRef.UnWrap(browser),
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TCefDictionaryValueRef.UnWrap(extra_info));
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end;
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procedure cef_render_process_handler_on_browser_destroyed(self : PCefRenderProcessHandler;
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browser : PCefBrowser); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnBrowserDestroyed(TCefBrowserRef.UnWrap(browser));
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end;
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function cef_render_process_handler_get_load_handler(self: PCefRenderProcessHandler): PCefLoadHandler; stdcall;
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var
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TempObject : TObject;
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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
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(TempObject is TCefRenderProcessHandlerOwn) then
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Result := CefGetData(TCefRenderProcessHandlerOwn(TempObject).GetLoadHandler);
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end;
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procedure cef_render_process_handler_on_context_created(self : PCefRenderProcessHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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context : PCefv8Context); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnContextCreated(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefv8ContextRef.UnWrap(context));
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end;
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procedure cef_render_process_handler_on_context_released(self : PCefRenderProcessHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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context : PCefv8Context); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnContextReleased(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefv8ContextRef.UnWrap(context));
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end;
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procedure cef_render_process_handler_on_uncaught_exception(self : PCefRenderProcessHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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context : PCefv8Context;
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exception : PCefV8Exception;
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stackTrace : PCefV8StackTrace); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnUncaughtException(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefv8ContextRef.UnWrap(context),
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TCefV8ExceptionRef.UnWrap(exception),
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TCefV8StackTraceRef.UnWrap(stackTrace));
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end;
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procedure cef_render_process_handler_on_focused_node_changed(self : PCefRenderProcessHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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node : PCefDomNode); 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
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(TempObject is TCefRenderProcessHandlerOwn) then
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TCefRenderProcessHandlerOwn(TempObject).OnFocusedNodeChanged(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefDomNodeRef.UnWrap(node));
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end;
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function cef_render_process_handler_on_process_message_received(self : PCefRenderProcessHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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source_process : TCefProcessId;
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message_ : PCefProcessMessage): Integer; stdcall;
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var
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TempObject : TObject;
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begin
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Result := Ord(False);
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and
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(TempObject is TCefRenderProcessHandlerOwn) then
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Result := Ord(TCefRenderProcessHandlerOwn(TempObject).OnProcessMessageReceived(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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source_process,
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TCefProcessMessageRef.UnWrap(message_)));
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end;
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// TCefRenderProcessHandlerOwn
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constructor TCefRenderProcessHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefRenderProcessHandler));
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with PCefRenderProcessHandler(FData)^ do
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begin
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on_web_kit_initialized := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_web_kit_initialized;
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on_browser_created := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_browser_created;
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on_browser_destroyed := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_browser_destroyed;
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get_load_handler := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_get_load_handler;
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on_context_created := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_context_created;
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on_context_released := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_context_released;
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on_uncaught_exception := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_uncaught_exception;
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on_focused_node_changed := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_focused_node_changed;
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on_process_message_received := {$IFDEF FPC}@{$ENDIF}cef_render_process_handler_on_process_message_received;
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end;
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end;
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function TCefRenderProcessHandlerOwn.GetLoadHandler: ICefLoadHandler;
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begin
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Result := nil;
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end;
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function TCefRenderProcessHandlerOwn.OnProcessMessageReceived(const browser : ICefBrowser;
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const frame : ICefFrame;
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sourceProcess : TCefProcessId;
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const aMessage : ICefProcessMessage): Boolean;
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begin
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Result := False;
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end;
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// TCefCustomRenderProcessHandler
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constructor TCefCustomRenderProcessHandler.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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if (FCefApp <> nil) and FCefApp.MustCreateLoadHandler then
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FLoadHandler := TCustomRenderLoadHandler.Create(FCefApp)
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else
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FLoadHandler := nil;
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end;
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destructor TCefCustomRenderProcessHandler.Destroy;
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begin
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RemoveReferences;
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inherited Destroy;
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end;
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procedure TCefCustomRenderProcessHandler.RemoveReferences;
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begin
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if (FLoadHandler <> nil) then
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FLoadHandler.RemoveReferences;
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FCefApp := nil;
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FLoadHandler := nil;
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end;
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procedure TCefCustomRenderProcessHandler.OnWebKitInitialized;
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnWebKitInitialized;
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnWebKitInitialized', e) then raise;
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end;
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end;
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procedure TCefCustomRenderProcessHandler.OnBrowserCreated(const browser: ICefBrowser; const extra_info: ICefDictionaryValue);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnBrowserCreated(browser, extra_info);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnBrowserCreated', e) then raise;
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end;
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end;
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procedure TCefCustomRenderProcessHandler.OnBrowserDestroyed(const browser: ICefBrowser);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnBrowserDestroyed(browser);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnBrowserDestroyed', e) then raise;
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end;
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end;
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function TCefCustomRenderProcessHandler.GetLoadHandler: ICefLoadHandler;
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begin
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if (FLoadHandler <> nil) then
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Result := FLoadHandler
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else
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Result := inherited GetLoadHandler;
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end;
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procedure TCefCustomRenderProcessHandler.OnContextCreated(const browser : ICefBrowser;
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const frame : ICefFrame;
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const context : ICefv8Context);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnContextCreated(browser, frame, context);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnContextCreated', e) then raise;
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end;
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end;
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procedure TCefCustomRenderProcessHandler.OnContextReleased(const browser : ICefBrowser;
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const frame : ICefFrame;
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const context : ICefv8Context);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnContextReleased(browser, frame, context);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnContextReleased', e) then raise;
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end;
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end;
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procedure TCefCustomRenderProcessHandler.OnUncaughtException(const browser : ICefBrowser;
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const frame : ICefFrame;
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const context : ICefv8Context;
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const V8Exception : ICefV8Exception;
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const stackTrace : ICefV8StackTrace);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnUncaughtException(browser, frame, context, V8Exception, stackTrace);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnUncaughtException', e) then raise;
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end;
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end;
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procedure TCefCustomRenderProcessHandler.OnFocusedNodeChanged(const browser : ICefBrowser;
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const frame : ICefFrame;
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const node : ICefDomNode);
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begin
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnFocusedNodeChanged(browser, frame, node);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnFocusedNodeChanged', e) then raise;
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end;
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end;
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function TCefCustomRenderProcessHandler.OnProcessMessageReceived(const browser : ICefBrowser;
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const frame : ICefFrame;
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sourceProcess : TCefProcessId;
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const aMessage : ICefProcessMessage): Boolean;
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begin
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Result := inherited OnProcessMessageReceived(browser, frame, sourceProcess, aMessage);
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try
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if (FCefApp <> nil) then FCefApp.Internal_OnProcessMessageReceived(browser, frame, sourceProcess, aMessage, Result);
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except
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on e : exception do
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if CustomExceptionHandler('TCefCustomRenderProcessHandler.OnProcessMessageReceived', e) then raise;
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end;
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end;
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end.
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