mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
03f9e9a1b9
Fixed issue #404 : Memory leak with empty TChromiumDefaultUrl Fixed crash in RasperryPi OS 64 bits
339 lines
11 KiB
ObjectPascal
339 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 © 2022 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 uCEFTextfieldDelegate;
|
|
|
|
{$IFDEF FPC}
|
|
{$MODE OBJFPC}{$H+}
|
|
{$ENDIF}
|
|
|
|
{$I cef.inc}
|
|
|
|
{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
|
|
{$MINENUMSIZE 4}
|
|
|
|
interface
|
|
|
|
uses
|
|
{$IFDEF DELPHI16_UP}
|
|
System.Classes, System.SysUtils,
|
|
{$ELSE}
|
|
Classes, SysUtils,
|
|
{$ENDIF}
|
|
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes, uCEFViewDelegate;
|
|
|
|
type
|
|
TCefTextfieldDelegateRef = class(TCefViewDelegateRef, ICefTextfieldDelegate)
|
|
protected
|
|
procedure OnKeyEvent(const textfield: ICefTextfield; const event: TCefKeyEvent; var aResult : boolean);
|
|
procedure OnAfterUserAction(const textfield: ICefTextfield);
|
|
|
|
public
|
|
class function UnWrap(data: Pointer): ICefTextfieldDelegate;
|
|
end;
|
|
|
|
TCefTextfieldDelegateOwn = class(TCefViewDelegateOwn, ICefTextfieldDelegate)
|
|
protected
|
|
procedure OnKeyEvent(const textfield: ICefTextfield; const event: TCefKeyEvent; var aResult : boolean); virtual;
|
|
procedure OnAfterUserAction(const textfield: ICefTextfield); virtual;
|
|
|
|
procedure InitializeCEFMethods; override;
|
|
|
|
public
|
|
constructor Create; override;
|
|
end;
|
|
|
|
TCustomTextfieldDelegate = class(TCefTextfieldDelegateOwn)
|
|
protected
|
|
FEvents : Pointer;
|
|
|
|
// ICefViewDelegate
|
|
procedure OnGetPreferredSize(const view: ICefView; var aResult : TCefSize); override;
|
|
procedure OnGetMinimumSize(const view: ICefView; var aResult : TCefSize); override;
|
|
procedure OnGetMaximumSize(const view: ICefView; var aResult : TCefSize); override;
|
|
procedure OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer); override;
|
|
procedure OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView); override;
|
|
procedure OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView); override;
|
|
procedure OnWindowChanged(const view: ICefView; added: boolean); override;
|
|
procedure OnLayoutChanged(const view: ICefView; new_bounds: TCefRect); override;
|
|
procedure OnFocus(const view: ICefView); override;
|
|
procedure OnBlur(const view: ICefView); override;
|
|
|
|
// ICefTextfieldDelegate
|
|
procedure OnKeyEvent(const textfield: ICefTextfield; const event: TCefKeyEvent; var aResult : boolean); override;
|
|
procedure OnAfterUserAction(const textfield: ICefTextfield); override;
|
|
|
|
public
|
|
constructor Create(const events: ICefTextfieldDelegateEvents); reintroduce;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
uCEFLibFunctions, uCEFMiscFunctions, uCEFTextfield;
|
|
|
|
|
|
// **************************************************************
|
|
// ***************** TCefTextfieldDelegateRef *******************
|
|
// **************************************************************
|
|
|
|
procedure TCefTextfieldDelegateRef.OnKeyEvent(const textfield : ICefTextfield;
|
|
const event : TCefKeyEvent;
|
|
var aResult : boolean);
|
|
begin
|
|
aResult := (PCefTextfieldDelegate(FData)^.on_key_event(PCefTextfieldDelegate(FData),
|
|
CefGetData(textfield),
|
|
@event) <> 0);
|
|
end;
|
|
|
|
procedure TCefTextfieldDelegateRef.OnAfterUserAction(const textfield: ICefTextfield);
|
|
begin
|
|
PCefTextfieldDelegate(FData)^.on_after_user_action(PCefTextfieldDelegate(FData),
|
|
CefGetData(textfield));
|
|
end;
|
|
|
|
class function TCefTextfieldDelegateRef.UnWrap(data: Pointer): ICefTextfieldDelegate;
|
|
begin
|
|
if (data <> nil) then
|
|
Result := Create(data) as ICefTextfieldDelegate
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
|
|
// **************************************************************
|
|
// ***************** TCefTextfieldDelegateOwn *******************
|
|
// **************************************************************
|
|
|
|
function cef_textfield_delegate_on_key_event(self: PCefTextfieldDelegate; textfield: PCefTextfield; const event: PCefKeyEvent): Integer; stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
TempResult : boolean;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
TempResult := False;
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefTextfieldDelegateOwn) then
|
|
TCefTextfieldDelegateOwn(TempObject).OnKeyEvent(TCefTextfieldRef.UnWrap(textfield), event^, TempResult);
|
|
|
|
Result := ord(TempResult);
|
|
end;
|
|
|
|
procedure cef_textfield_delegate_on_accelerator(self: PCefTextfieldDelegate; textfield: PCefTextfield); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefTextfieldDelegateOwn) then
|
|
TCefTextfieldDelegateOwn(TempObject).OnAfterUserAction(TCefTextfieldRef.UnWrap(textfield));
|
|
end;
|
|
|
|
constructor TCefTextfieldDelegateOwn.Create;
|
|
begin
|
|
inherited CreateData(SizeOf(TCefTextfieldDelegate));
|
|
|
|
InitializeCEFMethods;
|
|
end;
|
|
|
|
procedure TCefTextfieldDelegateOwn.InitializeCEFMethods;
|
|
begin
|
|
inherited InitializeCEFMethods;
|
|
|
|
with PCefTextfieldDelegate(FData)^ do
|
|
begin
|
|
on_after_user_action := {$IFDEF FPC}@{$ENDIF}cef_textfield_delegate_on_accelerator;
|
|
on_key_event := {$IFDEF FPC}@{$ENDIF}cef_textfield_delegate_on_key_event;
|
|
end;
|
|
end;
|
|
|
|
procedure TCefTextfieldDelegateOwn.OnKeyEvent(const textfield: ICefTextfield; const event: TCefKeyEvent; var aResult : boolean);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefTextfieldDelegateOwn.OnAfterUserAction(const textfield: ICefTextfield);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
|
|
// **************************************************************
|
|
// ***************** TCustomTextfieldDelegate *******************
|
|
// **************************************************************
|
|
|
|
constructor TCustomTextfieldDelegate.Create(const events: ICefTextfieldDelegateEvents);
|
|
begin
|
|
inherited Create;
|
|
|
|
FEvents := Pointer(events);
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnGetPreferredSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnGetPreferredSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnGetPreferredSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnGetMinimumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnGetMinimumSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnGetMinimumSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnGetMaximumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnGetMaximumSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnGetMaximumSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnGetHeightForWidth(view, width, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnGetHeightForWidth', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnParentViewChanged(view, added, parent);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnParentViewChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnChildViewChanged(view, added, child);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnChildViewChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnWindowChanged(const view: ICefView; added: boolean);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnWindowChanged(view, added);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnWindowChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnLayoutChanged(const view: ICefView; new_bounds: TCefRect);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnLayoutChanged(view, new_bounds);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnLayoutChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnFocus(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnFocus(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnFocus', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnBlur(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnBlur(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnBlur', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnKeyEvent(const textfield: ICefTextfield; const event: TCefKeyEvent; var aResult : boolean);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnKeyEvent(textfield, event, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnKeyEvent', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomTextfieldDelegate.OnAfterUserAction(const textfield: ICefTextfield);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefTextfieldDelegateEvents(FEvents).doOnAfterUserAction(textfield);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomTextfieldDelegate.OnAfterUserAction', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
end.
|