mirror of
https://github.com/salvadordf/CEF4Delphi.git
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275 lines
12 KiB
ObjectPascal
275 lines
12 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 uCEFContextMenuHandler;
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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;
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type
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TCefContextMenuHandlerOwn = class(TCefBaseRefCountedOwn, ICefContextMenuHandler)
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protected
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procedure OnBeforeContextMenu(const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel); virtual;
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function RunContextMenu(const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel; const callback: ICefRunContextMenuCallback): Boolean; virtual;
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function OnContextMenuCommand(const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; commandId: Integer; eventFlags: TCefEventFlags): Boolean; virtual;
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procedure OnContextMenuDismissed(const browser: ICefBrowser; const frame: ICefFrame); virtual;
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procedure RemoveReferences; virtual;
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public
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constructor Create; virtual;
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end;
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TCustomContextMenuHandler = class(TCefContextMenuHandlerOwn)
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protected
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FEvents : Pointer;
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procedure OnBeforeContextMenu(const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel); override;
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function RunContextMenu(const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel; const callback: ICefRunContextMenuCallback): Boolean; override;
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function OnContextMenuCommand(const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; commandId: Integer; eventFlags: TCefEventFlags): Boolean; override;
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procedure OnContextMenuDismissed(const browser: ICefBrowser; const frame: ICefFrame); override;
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procedure RemoveReferences; override;
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public
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constructor Create(const events : IChromiumEvents); reintroduce; virtual;
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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, uCEFBrowser, uCEFFrame, uCEFContextMenuParams,
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uCEFMenuModel, uCEFRunContextMenuCallback;
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procedure cef_context_menu_handler_on_before_context_menu(self : PCefContextMenuHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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params : PCefContextMenuParams;
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model : PCefMenuModel); 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 TCefContextMenuHandlerOwn) then
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TCefContextMenuHandlerOwn(TempObject).OnBeforeContextMenu(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefContextMenuParamsRef.UnWrap(params),
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TCefMenuModelRef.UnWrap(model));
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end;
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function cef_context_menu_handler_run_context_menu(self : PCefContextMenuHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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params : PCefContextMenuParams;
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model : PCefMenuModel;
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callback : PCefRunContextMenuCallback): 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 (TempObject is TCefContextMenuHandlerOwn) then
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Result := Ord(TCefContextMenuHandlerOwn(TempObject).RunContextMenu(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefContextMenuParamsRef.UnWrap(params),
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TCefMenuModelRef.UnWrap(model),
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TCefRunContextMenuCallbackRef.UnWrap(callback)));
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end;
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function cef_context_menu_handler_on_context_menu_command(self : PCefContextMenuHandler;
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browser : PCefBrowser;
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frame : PCefFrame;
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params : PCefContextMenuParams;
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command_id : Integer;
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event_flags : TCefEventFlags): 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 (TempObject is TCefContextMenuHandlerOwn) then
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Result := Ord(TCefContextMenuHandlerOwn(TempObject).OnContextMenuCommand(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame),
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TCefContextMenuParamsRef.UnWrap(params),
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command_id,
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event_flags));
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end;
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procedure cef_context_menu_handler_on_context_menu_dismissed(self : PCefContextMenuHandler;
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browser : PCefBrowser;
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frame : PCefFrame); 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 TCefContextMenuHandlerOwn) then
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TCefContextMenuHandlerOwn(TempObject).OnContextMenuDismissed(TCefBrowserRef.UnWrap(browser),
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TCefFrameRef.UnWrap(frame));
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end;
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constructor TCefContextMenuHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefContextMenuHandler));
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with PCefContextMenuHandler(FData)^ do
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begin
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on_before_context_menu := {$IFDEF FPC}@{$ENDIF}cef_context_menu_handler_on_before_context_menu;
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run_context_menu := {$IFDEF FPC}@{$ENDIF}cef_context_menu_handler_run_context_menu;
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on_context_menu_command := {$IFDEF FPC}@{$ENDIF}cef_context_menu_handler_on_context_menu_command;
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on_context_menu_dismissed := {$IFDEF FPC}@{$ENDIF}cef_context_menu_handler_on_context_menu_dismissed;
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end;
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end;
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procedure TCefContextMenuHandlerOwn.OnBeforeContextMenu(const browser : ICefBrowser;
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const frame : ICefFrame;
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const params : ICefContextMenuParams;
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const model : ICefMenuModel);
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begin
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//
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end;
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function TCefContextMenuHandlerOwn.OnContextMenuCommand(const browser : ICefBrowser;
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const frame : ICefFrame;
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const params : ICefContextMenuParams;
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commandId : Integer;
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eventFlags : TCefEventFlags): Boolean;
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begin
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Result := False;
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end;
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procedure TCefContextMenuHandlerOwn.OnContextMenuDismissed(const browser : ICefBrowser;
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const frame : ICefFrame);
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begin
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//
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end;
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function TCefContextMenuHandlerOwn.RunContextMenu(const browser : ICefBrowser;
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const frame : ICefFrame;
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const params : ICefContextMenuParams;
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const model : ICefMenuModel;
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const callback : ICefRunContextMenuCallback): Boolean;
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begin
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Result := False;
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end;
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procedure TCefContextMenuHandlerOwn.RemoveReferences;
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begin
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//
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end;
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// TCustomContextMenuHandler
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constructor TCustomContextMenuHandler.Create(const events : IChromiumEvents);
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begin
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inherited Create;
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FEvents := Pointer(events);
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end;
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destructor TCustomContextMenuHandler.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 TCustomContextMenuHandler.RemoveReferences;
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begin
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FEvents := nil;
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end;
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procedure TCustomContextMenuHandler.OnBeforeContextMenu(const browser : ICefBrowser;
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const frame : ICefFrame;
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const params : ICefContextMenuParams;
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const model : ICefMenuModel);
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begin
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if (FEvents <> nil) then IChromiumEvents(FEvents).doOnBeforeContextMenu(browser, frame, params, model);
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end;
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function TCustomContextMenuHandler.RunContextMenu(const browser : ICefBrowser;
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const frame : ICefFrame;
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const params : ICefContextMenuParams;
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const model : ICefMenuModel;
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const callback : ICefRunContextMenuCallback): Boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doRunContextMenu(browser, frame, params, model, callback)
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else
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Result := inherited RunContextMenu(browser, frame, params, model, callback);
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end;
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function TCustomContextMenuHandler.OnContextMenuCommand(const browser : ICefBrowser;
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const frame : ICefFrame;
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const params : ICefContextMenuParams;
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commandId : Integer;
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eventFlags : TCefEventFlags): Boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnContextMenuCommand(browser, frame, params, commandId, eventFlags)
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else
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Result := inherited OnContextMenuCommand(browser, frame, params, commandId, eventFlags);
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end;
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procedure TCustomContextMenuHandler.OnContextMenuDismissed(const browser : ICefBrowser;
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const frame : ICefFrame);
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begin
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if (FEvents <> nil) then IChromiumEvents(FEvents).doOnContextMenuDismissed(browser, frame);
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end;
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end.
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