mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
326 lines
13 KiB
ObjectPascal
326 lines
13 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 uCEFRenderProcessHandler;
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{$IFNDEF CPUX64}
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{$ALIGN ON}
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{$MINENUMSIZE 4}
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{$ENDIF}
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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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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;
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type
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TCefRenderProcessHandlerOwn = class(TCefBaseRefCountedOwn, ICefRenderProcessHandler)
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protected
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procedure OnRenderThreadCreated(const extraInfo: ICefListValue); virtual;
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procedure OnWebKitInitialized; virtual;
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procedure OnBrowserCreated(const browser: ICefBrowser); virtual;
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procedure OnBrowserDestroyed(const browser: ICefBrowser); virtual;
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function GetLoadHandler: PCefLoadHandler; virtual;
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function OnBeforeNavigation(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; navigationType: TCefNavigationType; isRedirect: Boolean): Boolean; virtual;
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procedure OnContextCreated(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context); virtual;
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procedure OnContextReleased(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context); virtual;
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procedure OnUncaughtException(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context; const exception: ICefV8Exception; const stackTrace: ICefV8StackTrace); virtual;
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procedure OnFocusedNodeChanged(const browser: ICefBrowser; const frame: ICefFrame; const node: ICefDomNode); virtual;
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function OnProcessMessageReceived(const browser: ICefBrowser; sourceProcess: TCefProcessId; const message: ICefProcessMessage): Boolean; virtual;
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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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FMessageName : ustring;
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FOnCustomMessage : TOnCustomMessage;
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FOnWebKitReady : TOnWebKitReady;
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FOnBeforeBrowserNavigation : TOnBeforeBrowserNavigation;
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procedure OnWebKitInitialized; override;
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function OnProcessMessageReceived(const browser: ICefBrowser; sourceProcess: TCefProcessId; const message: ICefProcessMessage): Boolean; override;
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function OnBeforeNavigation(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; navigationType: TCefNavigationType; isRedirect: Boolean): Boolean; override;
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public
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constructor Create; override;
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property MessageName : ustring read FMessageName write FMessageName;
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property OnCustomMessage : TOnCustomMessage read FOnCustomMessage write FOnCustomMessage;
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property OnWebKitReady : TOnWebKitReady read FOnWebKitReady write FOnWebKitReady;
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property OnBeforeBrowserNavigation : TOnBeforeBrowserNavigation read FOnBeforeBrowserNavigation write FOnBeforeBrowserNavigation;
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end;
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implementation
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uses
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uCEFMiscFunctions, uCEFLibFunctions;
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procedure cef_render_process_handler_on_render_thread_created(
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self: PCefRenderProcessHandler; extra_info: PCefListValue); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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OnRenderThreadCreated(TCefListValueRef.UnWrap(extra_info));
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end;
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procedure cef_render_process_handler_on_web_kit_initialized(self: PCefRenderProcessHandler); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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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); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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OnBrowserCreated(TCefBrowserRef.UnWrap(browser));
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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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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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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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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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Result := GetLoadHandler();
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end;
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function cef_render_process_handler_on_before_navigation(self: PCefRenderProcessHandler;
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browser: PCefBrowser; frame: PCefFrame; request: PCefRequest;
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navigation_type: TCefNavigationType; is_redirect: Integer): Integer; stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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Result := Ord(OnBeforeNavigation(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request),
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navigation_type, is_redirect <> 0));
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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; frame: PCefFrame; context: PCefv8Context); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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OnContextCreated(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), 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; frame: PCefFrame; context: PCefv8Context); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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OnContextReleased(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), 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; frame: PCefFrame; context: PCefv8Context;
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exception: PCefV8Exception; stackTrace: PCefV8StackTrace); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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OnUncaughtException(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame),
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TCefv8ContextRef.UnWrap(context), 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; frame: PCefFrame; node: PCefDomNode); stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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OnFocusedNodeChanged(TCefBrowserRef.UnWrap(browser), 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; source_process: TCefProcessId;
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message: PCefProcessMessage): Integer; stdcall;
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begin
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with TCefRenderProcessHandlerOwn(CefGetObject(Self)) do
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Result := Ord(OnProcessMessageReceived(TCefBrowserRef.UnWrap(browser), 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_render_thread_created := cef_render_process_handler_on_render_thread_created;
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on_web_kit_initialized := cef_render_process_handler_on_web_kit_initialized;
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on_browser_created := cef_render_process_handler_on_browser_created;
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on_browser_destroyed := cef_render_process_handler_on_browser_destroyed;
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get_load_handler := cef_render_process_handler_get_load_handler;
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on_before_navigation := cef_render_process_handler_on_before_navigation;
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on_context_created := cef_render_process_handler_on_context_created;
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on_context_released := cef_render_process_handler_on_context_released;
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on_uncaught_exception := cef_render_process_handler_on_uncaught_exception;
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on_focused_node_changed := cef_render_process_handler_on_focused_node_changed;
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on_process_message_received := 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: PCefLoadHandler;
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begin
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Result := nil;
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end;
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function TCefRenderProcessHandlerOwn.OnBeforeNavigation(
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const browser: ICefBrowser; const frame: ICefFrame;
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const request: ICefRequest; navigationType: TCefNavigationType;
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isRedirect: Boolean): Boolean;
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begin
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Result := False;
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end;
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procedure TCefRenderProcessHandlerOwn.OnBrowserCreated(
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const browser: ICefBrowser);
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begin
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end;
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procedure TCefRenderProcessHandlerOwn.OnBrowserDestroyed(
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const browser: ICefBrowser);
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begin
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end;
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procedure TCefRenderProcessHandlerOwn.OnContextCreated(
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const browser: ICefBrowser; const frame: ICefFrame;
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const context: ICefv8Context);
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begin
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end;
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procedure TCefRenderProcessHandlerOwn.OnContextReleased(
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const browser: ICefBrowser; const frame: ICefFrame;
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const context: ICefv8Context);
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begin
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end;
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procedure TCefRenderProcessHandlerOwn.OnFocusedNodeChanged(
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const browser: ICefBrowser; const frame: ICefFrame; const node: ICefDomNode);
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begin
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end;
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function TCefRenderProcessHandlerOwn.OnProcessMessageReceived(
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const browser: ICefBrowser; sourceProcess: TCefProcessId;
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const message: ICefProcessMessage): Boolean;
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begin
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Result := False;
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end;
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procedure TCefRenderProcessHandlerOwn.OnRenderThreadCreated(const extraInfo: ICefListValue);
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begin
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end;
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procedure TCefRenderProcessHandlerOwn.OnUncaughtException(
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const browser: ICefBrowser; const frame: ICefFrame;
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const context: ICefv8Context; const exception: ICefV8Exception;
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const stackTrace: ICefV8StackTrace);
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begin
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end;
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procedure TCefRenderProcessHandlerOwn.OnWebKitInitialized;
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begin
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end;
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// TCefCustomRenderProcessHandler
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constructor TCefCustomRenderProcessHandler.Create;
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begin
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inherited Create;
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FMessageName := '';
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FOnCustomMessage := nil;
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FOnWebKitReady := nil;
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FOnBeforeBrowserNavigation := nil;
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end;
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procedure TCefCustomRenderProcessHandler.OnWebKitInitialized;
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begin
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if assigned(FOnWebKitReady) then FOnWebKitReady();
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end;
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function TCefCustomRenderProcessHandler.OnProcessMessageReceived(const browser : ICefBrowser;
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sourceProcess : TCefProcessId;
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const message : ICefProcessMessage): Boolean;
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begin
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if assigned(FOnCustomMessage) and (message.Name = FMessageName) then
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begin
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FOnCustomMessage(browser, sourceProcess, message);
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Result := True;
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end
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else
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Result := inherited OnProcessMessageReceived(browser, sourceProcess, message);
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end;
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function TCefCustomRenderProcessHandler.OnBeforeNavigation(const browser : ICefBrowser;
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const frame : ICefFrame;
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const request : ICefRequest;
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navigationType : TCefNavigationType;
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isRedirect : Boolean) : Boolean;
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begin
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Result := False;
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if assigned(FOnBeforeBrowserNavigation) then
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FOnBeforeBrowserNavigation(browser, frame, request, navigationType, isRedirect, Result)
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else
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Result := inherited OnBeforeNavigation(browser, frame, request, navigationType, isRedirect);
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end;
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end.
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