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Salvador Diaz Fau
2017-01-27 17:29:37 +01:00
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commit 21dcc60a24
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// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 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 � 2017 Salvador D�az 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;
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
interface
uses
uCEFBase, uCEFInterfaces, uCEFTypes;
type
TCefJsDialogHandlerOwn = class(TCefBaseOwn, 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;
public
constructor Create; virtual;
end;
TCustomJsDialogHandler = class(TCefJsDialogHandlerOwn)
protected
FEvent: IChromiumEvents;
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;
public
constructor Create(const events: IChromiumEvents); reintroduce; virtual;
end;
implementation
uses
uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFJsDialogCallback;
function cef_jsdialog_handler_on_jsdialog(self: PCefJsDialogHandler;
browser: PCefBrowser; const origin_url: PCefString;
dialog_type: TCefJsDialogType; const message_text, default_prompt_text: PCefString;
callback: PCefJsDialogCallback; suppress_message: PInteger): Integer; stdcall;
var
sm: Boolean;
begin
sm := suppress_message^ <> 0;
with TCefJsDialogHandlerOwn(CefGetObject(self)) do
Result := Ord(OnJsdialog(TCefBrowserRef.UnWrap(browser), CefString(origin_url),
dialog_type, CefString(message_text), CefString(default_prompt_text),
TCefJsDialogCallbackRef.UnWrap(callback), sm));
suppress_message^ := Ord(sm);
end;
function cef_jsdialog_handler_on_before_unload_dialog(self: PCefJsDialogHandler;
browser: PCefBrowser; const message_text: PCefString; is_reload: Integer;
callback: PCefJsDialogCallback): Integer; stdcall;
begin
with TCefJsDialogHandlerOwn(CefGetObject(self)) do
Result := Ord(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;
begin
with TCefJsDialogHandlerOwn(CefGetObject(self)) do
OnResetDialogState(TCefBrowserRef.UnWrap(browser));
end;
procedure cef_jsdialog_handler_on_dialog_closed(self: PCefJsDialogHandler;
browser: PCefBrowser); stdcall;
begin
with TCefJsDialogHandlerOwn(CefGetObject(self)) do
OnDialogClosed(TCefBrowserRef.UnWrap(browser));
end;
constructor TCefJsDialogHandlerOwn.Create;
begin
inherited CreateData(SizeOf(TCefJsDialogHandler));
with PCefJsDialogHandler(FData)^ do
begin
on_jsdialog := cef_jsdialog_handler_on_jsdialog;
on_before_unload_dialog := cef_jsdialog_handler_on_before_unload_dialog;
on_reset_dialog_state := cef_jsdialog_handler_on_reset_dialog_state;
on_dialog_closed := cef_jsdialog_handler_on_dialog_closed;
end;
end;
function TCefJsDialogHandlerOwn.OnJsdialog(const browser: ICefBrowser;
const originUrl: ustring; dialogType: TCefJsDialogType;
const messageText, defaultPromptText: ustring;
const callback: ICefJsDialogCallback;
out suppressMessage: Boolean): Boolean;
begin
Result := 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;
// TCustomJsDialogHandler
constructor TCustomJsDialogHandler.Create(const events: IChromiumEvents);
begin
inherited Create;
FEvent := events;
end;
function TCustomJsDialogHandler.OnBeforeUnloadDialog(const browser: ICefBrowser;
const messageText: ustring; isReload: Boolean;
const callback: ICefJsDialogCallback): Boolean;
begin
Result := FEvent.doOnBeforeUnloadDialog(browser, messageText, isReload, callback);
end;
procedure TCustomJsDialogHandler.OnDialogClosed(const browser: ICefBrowser);
begin
FEvent.doOnDialogClosed(browser);
end;
function TCustomJsDialogHandler.OnJsdialog(const browser: ICefBrowser;
const originUrl: ustring; dialogType: TCefJsDialogType;
const messageText, defaultPromptText: ustring;
const callback: ICefJsDialogCallback;
out suppressMessage: Boolean): Boolean;
begin
Result := FEvent.doOnJsdialog(browser, originUrl, dialogType,
messageText, defaultPromptText, callback, suppressMessage);
end;
procedure TCustomJsDialogHandler.OnResetDialogState(const browser: ICefBrowser);
begin
FEvent.doOnResetDialogState(browser);
end;
end.