mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
1fa2f43b0c
- Modified CefPostTask and CefPostDelayedTask to return a boolean value. - Added CefCurrentlyOn helper function. - Replaced all "CEF3" mentions by "CEF".
269 lines
11 KiB
ObjectPascal
269 lines
11 KiB
ObjectPascal
// ************************************************************************
|
|
// ***************************** CEF4Delphi *******************************
|
|
// ************************************************************************
|
|
//
|
|
// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
|
|
// browser in Delphi applications.
|
|
//
|
|
// The original license of DCEF3 still applies to CEF4Delphi.
|
|
//
|
|
// For more information about CEF4Delphi visit :
|
|
// https://www.briskbard.com/index.php?lang=en&pageid=cef
|
|
//
|
|
// Copyright © 2019 Salvador Diaz Fau. All rights reserved.
|
|
//
|
|
// ************************************************************************
|
|
// ************ vvvv Original license and comments below vvvv *************
|
|
// ************************************************************************
|
|
(*
|
|
* Delphi Chromium Embedded 3
|
|
*
|
|
* Usage allowed under the restrictions of the Lesser GNU General Public License
|
|
* or alternatively the restrictions of the Mozilla Public License 1.1
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
|
|
* the specific language governing rights and limitations under the License.
|
|
*
|
|
* Unit owner : Henri Gourvest <hgourvest@gmail.com>
|
|
* Web site : http://www.progdigy.com
|
|
* Repository : http://code.google.com/p/delphichromiumembedded/
|
|
* Group : http://groups.google.com/group/delphichromiumembedded
|
|
*
|
|
* Embarcadero Technologies, Inc is not permitted to use or redistribute
|
|
* this source code without explicit permission.
|
|
*
|
|
*)
|
|
|
|
unit uCEFJsDialogHandler;
|
|
|
|
{$IFDEF FPC}
|
|
{$MODE OBJFPC}{$H+}
|
|
{$ENDIF}
|
|
|
|
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
|
|
{$MINENUMSIZE 4}
|
|
|
|
{$I cef.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
|
|
|
|
type
|
|
TCefJsDialogHandlerOwn = class(TCefBaseRefCountedOwn, ICefJsDialogHandler)
|
|
protected
|
|
function OnJsdialog(const browser: ICefBrowser; const originUrl: ustring; dialogType: TCefJsDialogType; const messageText, defaultPromptText: ustring; const callback: ICefJsDialogCallback; out suppressMessage: Boolean): Boolean; virtual;
|
|
function OnBeforeUnloadDialog(const browser: ICefBrowser; const messageText: ustring; isReload: Boolean; const callback: ICefJsDialogCallback): Boolean; virtual;
|
|
procedure OnResetDialogState(const browser: ICefBrowser); virtual;
|
|
procedure OnDialogClosed(const browser: ICefBrowser); virtual;
|
|
|
|
procedure RemoveReferences; virtual;
|
|
|
|
public
|
|
constructor Create; virtual;
|
|
end;
|
|
|
|
TCustomJsDialogHandler = class(TCefJsDialogHandlerOwn)
|
|
protected
|
|
FEvents : Pointer;
|
|
|
|
function OnJsdialog(const browser: ICefBrowser; const originUrl: ustring; dialogType: TCefJsDialogType; const messageText, defaultPromptText: ustring; const callback: ICefJsDialogCallback; out suppressMessage: Boolean): Boolean; override;
|
|
function OnBeforeUnloadDialog(const browser: ICefBrowser; const messageText: ustring; isReload: Boolean; const callback: ICefJsDialogCallback): Boolean; override;
|
|
procedure OnResetDialogState(const browser: ICefBrowser); override;
|
|
procedure OnDialogClosed(const browser: ICefBrowser); override;
|
|
|
|
procedure RemoveReferences; override;
|
|
|
|
public
|
|
constructor Create(const events : IChromiumEvents); reintroduce; virtual;
|
|
destructor Destroy; override;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
{$IFDEF DELPHI16_UP}
|
|
System.SysUtils,
|
|
{$ELSE}
|
|
SysUtils,
|
|
{$ENDIF}
|
|
uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFJsDialogCallback;
|
|
|
|
function cef_jsdialog_handler_on_jsdialog( self : PCefJsDialogHandler;
|
|
browser : PCefBrowser;
|
|
const origin_url : PCefString;
|
|
dialog_type : TCefJsDialogType;
|
|
const message_text : PCefString;
|
|
const default_prompt_text : PCefString;
|
|
callback : PCefJsDialogCallback;
|
|
suppress_message : PInteger): Integer; stdcall;
|
|
var
|
|
TempSuppress : Boolean;
|
|
TempObject : TObject;
|
|
begin
|
|
Result := Ord(False);
|
|
TempSuppress := suppress_message^ <> 0;
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefJsDialogHandlerOwn) then
|
|
Result := Ord(TCefJsDialogHandlerOwn(TempObject).OnJsdialog(TCefBrowserRef.UnWrap(browser),
|
|
CefString(origin_url),
|
|
dialog_type,
|
|
CefString(message_text),
|
|
CefString(default_prompt_text),
|
|
TCefJsDialogCallbackRef.UnWrap(callback),
|
|
TempSuppress));
|
|
|
|
suppress_message^ := Ord(TempSuppress);
|
|
end;
|
|
|
|
function cef_jsdialog_handler_on_before_unload_dialog( self : PCefJsDialogHandler;
|
|
browser : PCefBrowser;
|
|
const message_text : PCefString;
|
|
is_reload : Integer;
|
|
callback : PCefJsDialogCallback): Integer; stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
Result := Ord(False);
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefJsDialogHandlerOwn) then
|
|
Result := Ord(TCefJsDialogHandlerOwn(TempObject).OnBeforeUnloadDialog(TCefBrowserRef.UnWrap(browser),
|
|
CefString(message_text),
|
|
is_reload <> 0,
|
|
TCefJsDialogCallbackRef.UnWrap(callback)));
|
|
end;
|
|
|
|
procedure cef_jsdialog_handler_on_reset_dialog_state(self : PCefJsDialogHandler;
|
|
browser : PCefBrowser); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefJsDialogHandlerOwn) then
|
|
TCefJsDialogHandlerOwn(TempObject).OnResetDialogState(TCefBrowserRef.UnWrap(browser));
|
|
end;
|
|
|
|
procedure cef_jsdialog_handler_on_dialog_closed(self : PCefJsDialogHandler;
|
|
browser : PCefBrowser); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefJsDialogHandlerOwn) then
|
|
TCefJsDialogHandlerOwn(TempObject).OnDialogClosed(TCefBrowserRef.UnWrap(browser));
|
|
end;
|
|
|
|
constructor TCefJsDialogHandlerOwn.Create;
|
|
begin
|
|
inherited CreateData(SizeOf(TCefJsDialogHandler));
|
|
|
|
with PCefJsDialogHandler(FData)^ do
|
|
begin
|
|
on_jsdialog := {$IFDEF FPC}@{$ENDIF}cef_jsdialog_handler_on_jsdialog;
|
|
on_before_unload_dialog := {$IFDEF FPC}@{$ENDIF}cef_jsdialog_handler_on_before_unload_dialog;
|
|
on_reset_dialog_state := {$IFDEF FPC}@{$ENDIF}cef_jsdialog_handler_on_reset_dialog_state;
|
|
on_dialog_closed := {$IFDEF FPC}@{$ENDIF}cef_jsdialog_handler_on_dialog_closed;
|
|
end;
|
|
end;
|
|
|
|
function TCefJsDialogHandlerOwn.OnJsdialog(const browser : ICefBrowser;
|
|
const originUrl : ustring;
|
|
dialogType : TCefJsDialogType;
|
|
const messageText : ustring;
|
|
const defaultPromptText : ustring;
|
|
const callback : ICefJsDialogCallback;
|
|
out suppressMessage : Boolean): Boolean;
|
|
begin
|
|
Result := False;
|
|
suppressMessage := False;
|
|
end;
|
|
|
|
function TCefJsDialogHandlerOwn.OnBeforeUnloadDialog(const browser : ICefBrowser;
|
|
const messageText : ustring;
|
|
isReload : Boolean;
|
|
const callback : ICefJsDialogCallback): Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TCefJsDialogHandlerOwn.OnDialogClosed(const browser: ICefBrowser);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefJsDialogHandlerOwn.OnResetDialogState(const browser: ICefBrowser);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefJsDialogHandlerOwn.RemoveReferences;
|
|
begin
|
|
//
|
|
end;
|
|
|
|
// TCustomJsDialogHandler
|
|
|
|
constructor TCustomJsDialogHandler.Create(const events : IChromiumEvents);
|
|
begin
|
|
inherited Create;
|
|
|
|
FEvents := Pointer(events);
|
|
end;
|
|
|
|
destructor TCustomJsDialogHandler.Destroy;
|
|
begin
|
|
RemoveReferences;
|
|
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TCustomJsDialogHandler.RemoveReferences;
|
|
begin
|
|
FEvents := nil;
|
|
end;
|
|
|
|
function TCustomJsDialogHandler.OnBeforeUnloadDialog(const browser : ICefBrowser;
|
|
const messageText : ustring;
|
|
isReload : Boolean;
|
|
const callback : ICefJsDialogCallback): Boolean;
|
|
begin
|
|
if (FEvents <> nil) then
|
|
Result := IChromiumEvents(FEvents).doOnBeforeUnloadDialog(browser, messageText, isReload, callback)
|
|
else
|
|
Result := inherited OnBeforeUnloadDialog(browser, messageText, isReload, callback);
|
|
end;
|
|
|
|
procedure TCustomJsDialogHandler.OnDialogClosed(const browser: ICefBrowser);
|
|
begin
|
|
if (FEvents <> nil) then IChromiumEvents(FEvents).doOnDialogClosed(browser);
|
|
end;
|
|
|
|
function TCustomJsDialogHandler.OnJsdialog(const browser : ICefBrowser;
|
|
const originUrl : ustring;
|
|
dialogType : TCefJsDialogType;
|
|
const messageText : ustring;
|
|
const defaultPromptText : ustring;
|
|
const callback : ICefJsDialogCallback;
|
|
out suppressMessage : Boolean): Boolean;
|
|
begin
|
|
suppressMessage := False;
|
|
|
|
if (FEvents <> nil) then
|
|
Result := IChromiumEvents(FEvents).doOnJsdialog(browser, originUrl, dialogType, messageText, defaultPromptText, callback, suppressMessage)
|
|
else
|
|
Result := inherited OnJsdialog(browser, originUrl, dialogType, messageText, defaultPromptText, callback, suppressMessage);
|
|
end;
|
|
|
|
procedure TCustomJsDialogHandler.OnResetDialogState(const browser: ICefBrowser);
|
|
begin
|
|
if (FEvents <> nil) then IChromiumEvents(FEvents).doOnResetDialogState(browser);
|
|
end;
|
|
|
|
end.
|