mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-12-04 09:26:52 +02:00
769aa4f384
- Added lots of conditional compiler directives to build CEF4DElphi in Linux using Lazarus/FPC - Updated copyright year
198 lines
7.1 KiB
ObjectPascal
198 lines
7.1 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 © 2019 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 uCEFDialogHandler;
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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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{$I cef.inc}
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interface
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uses
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{$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;
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type
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TCefDialogHandlerOwn = class(TCefBaseRefCountedOwn, ICefDialogHandler)
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protected
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function OnFileDialog(const browser: ICefBrowser; mode: TCefFileDialogMode; const title, defaultFilePath: ustring; const acceptFilters: TStrings; selectedAcceptFilter: Integer; const callback: ICefFileDialogCallback): Boolean; 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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TCustomDialogHandler = class(TCefDialogHandlerOwn)
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protected
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FEvents : Pointer;
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function OnFileDialog(const browser: ICefBrowser; mode: TCefFileDialogMode; const title: ustring; const defaultFilePath: ustring; const acceptFilters: TStrings; selectedAcceptFilter: Integer; const callback: ICefFileDialogCallback): Boolean; override;
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procedure RemoveReferences; override;
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public
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constructor Create(const events: Pointer); 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, uCEFFileDialogCallback, uCEFStringList;
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function cef_dialog_handler_on_file_dialog(self : PCefDialogHandler;
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browser : PCefBrowser;
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mode : TCefFileDialogMode;
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const title : PCefString;
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const default_file_path : PCefString;
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accept_filters : TCefStringList;
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selected_accept_filter : Integer;
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callback : PCefFileDialogCallback): Integer; stdcall;
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var
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TempSL : TStringList;
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TempCefSL : ICefStringList;
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TempObject : TObject;
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begin
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TempSL := nil;
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Result := Ord(False);
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try
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try
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefDialogHandlerOwn) then
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begin
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TempSL := TStringList.Create;
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TempCefSL := TCefStringListRef.Create(accept_filters);
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TempCefSL.CopyToStrings(TempSL);
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Result := Ord(TCefDialogHandlerOwn(TempObject).OnFileDialog(TCefBrowserRef.UnWrap(browser),
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mode,
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CefString(title),
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CefString(default_file_path),
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TempSL,
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selected_accept_filter,
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TCefFileDialogCallbackRef.UnWrap(callback)));
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end;
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except
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on e : exception do
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if CustomExceptionHandler('cef_dialog_handler_on_file_dialog', e) then raise;
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end;
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finally
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if (TempSL <> nil) then FreeAndNil(TempSL);
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end;
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end;
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constructor TCefDialogHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefDialogHandler));
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PCefDialogHandler(FData)^.on_file_dialog := {$IFDEF FPC}@{$ENDIF}cef_dialog_handler_on_file_dialog;
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end;
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function TCefDialogHandlerOwn.OnFileDialog(const browser : ICefBrowser;
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mode : TCefFileDialogMode;
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const title : ustring;
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const defaultFilePath : ustring;
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const acceptFilters : TStrings;
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selectedAcceptFilter : Integer;
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const callback : ICefFileDialogCallback): Boolean;
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begin
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Result := False;
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end;
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procedure TCefDialogHandlerOwn.RemoveReferences;
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begin
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//
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end;
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// TCustomDialogHandler
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constructor TCustomDialogHandler.Create(const events: Pointer);
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begin
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inherited Create;
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FEvents := events;
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end;
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destructor TCustomDialogHandler.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 TCustomDialogHandler.RemoveReferences;
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begin
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FEvents := nil;
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end;
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function TCustomDialogHandler.OnFileDialog(const browser : ICefBrowser;
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mode : TCefFileDialogMode;
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const title : ustring;
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const defaultFilePath : ustring;
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const acceptFilters : TStrings;
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selectedAcceptFilter : Integer;
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const callback : ICefFileDialogCallback): Boolean;
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begin
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if (FEvents <> nil) then
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Result := IChromiumEvents(FEvents).doOnFileDialog(browser, mode, title, defaultFilePath,
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acceptFilters, selectedAcceptFilter, callback)
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else
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Result := inherited OnFileDialog(browser, mode, title, defaultFilePath,
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acceptFilters, selectedAcceptFilter, callback);
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end;
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end.
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