mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
28ed9e7794
Added TinyBrowser demo for Linux. Added AppHelperRenamer tool for MacOS. Disabled 3 event in TCefViewDelegateRef in 32 bits as a workaround for the issue #278
513 lines
18 KiB
ObjectPascal
513 lines
18 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 © 2021 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 uCEFViewDelegate;
|
|
|
|
{$IFDEF FPC}
|
|
{$MODE OBJFPC}{$H+}
|
|
{$ENDIF}
|
|
|
|
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
|
|
{$MINENUMSIZE 4}
|
|
|
|
{$I cef.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
{$IFDEF DELPHI16_UP}
|
|
System.Classes, System.SysUtils,
|
|
{$ELSE}
|
|
Classes, SysUtils,
|
|
{$ENDIF}
|
|
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
|
|
|
|
type
|
|
TCefViewDelegateRef = class(TCefBaseRefCountedRef, ICefViewDelegate)
|
|
protected
|
|
procedure OnGetPreferredSize(const view: ICefView; var aResult : TCefSize);
|
|
procedure OnGetMinimumSize(const view: ICefView; var aResult : TCefSize);
|
|
procedure OnGetMaximumSize(const view: ICefView; var aResult : TCefSize);
|
|
procedure OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer);
|
|
procedure OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView);
|
|
procedure OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView);
|
|
procedure OnWindowChanged(const view: ICefView; added: boolean);
|
|
procedure OnFocus(const view: ICefView);
|
|
procedure OnBlur(const view: ICefView);
|
|
|
|
public
|
|
class function UnWrap(data: Pointer): ICefViewDelegate;
|
|
end;
|
|
|
|
TCefViewDelegateOwn = class(TCefBaseRefCountedOwn, ICefViewDelegate)
|
|
protected
|
|
procedure OnGetPreferredSize(const view: ICefView; var aResult : TCefSize); virtual;
|
|
procedure OnGetMinimumSize(const view: ICefView; var aResult : TCefSize); virtual;
|
|
procedure OnGetMaximumSize(const view: ICefView; var aResult : TCefSize); virtual;
|
|
procedure OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer); virtual;
|
|
procedure OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView); virtual;
|
|
procedure OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView); virtual;
|
|
procedure OnWindowChanged(const view: ICefView; added: boolean); virtual;
|
|
procedure OnFocus(const view: ICefView); virtual;
|
|
procedure OnBlur(const view: ICefView); virtual;
|
|
|
|
procedure InitializeCEFMethods; virtual;
|
|
public
|
|
constructor Create; virtual;
|
|
end;
|
|
|
|
TCustomViewDelegate = class(TCefViewDelegateOwn)
|
|
protected
|
|
FEvents : Pointer;
|
|
|
|
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 OnFocus(const view: ICefView); override;
|
|
procedure OnBlur(const view: ICefView); override;
|
|
|
|
public
|
|
constructor Create(const events: ICefViewDelegateEvents); reintroduce;
|
|
destructor Destroy; override;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
uCEFLibFunctions, uCEFMiscFunctions, uCEFView;
|
|
|
|
|
|
// **************************************************************
|
|
// ******************** TCefViewDelegateRef *********************
|
|
// **************************************************************
|
|
|
|
procedure TCefViewDelegateRef.OnGetPreferredSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
aResult := PCefViewDelegate(FData)^.get_preferred_size(PCefViewDelegate(FData), CefGetData(view));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnGetMinimumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
aResult := PCefViewDelegate(FData)^.get_minimum_size(PCefViewDelegate(FData), CefGetData(view));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnGetMaximumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
aResult := PCefViewDelegate(FData)^.get_maximum_size(PCefViewDelegate(FData), CefGetData(view));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer);
|
|
begin
|
|
aResult := PCefViewDelegate(FData)^.get_height_for_width(PCefViewDelegate(FData),
|
|
CefGetData(view),
|
|
width);
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView);
|
|
begin
|
|
PCefViewDelegate(FData)^.on_parent_view_changed(PCefViewDelegate(FData),
|
|
CefGetData(view),
|
|
ord(added),
|
|
CefGetData(parent));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView);
|
|
begin
|
|
PCefViewDelegate(FData)^.on_child_view_changed(PCefViewDelegate(FData),
|
|
CefGetData(view),
|
|
ord(added),
|
|
CefGetData(child));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnWindowChanged(const view: ICefView; added: boolean);
|
|
begin
|
|
PCefViewDelegate(FData)^.on_window_changed(PCefViewDelegate(FData),
|
|
CefGetData(view),
|
|
ord(added));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnFocus(const view: ICefView);
|
|
begin
|
|
PCefViewDelegate(FData)^.on_focus(PCefViewDelegate(FData),
|
|
CefGetData(view));
|
|
end;
|
|
|
|
procedure TCefViewDelegateRef.OnBlur(const view: ICefView);
|
|
begin
|
|
PCefViewDelegate(FData)^.on_blur(PCefViewDelegate(FData),
|
|
CefGetData(view));
|
|
end;
|
|
|
|
class function TCefViewDelegateRef.UnWrap(data: Pointer): ICefViewDelegate;
|
|
begin
|
|
if (data <> nil) then
|
|
Result := Create(data) as ICefViewDelegate
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
|
|
|
|
// **************************************************************
|
|
// ******************** TCefViewDelegateOwn *********************
|
|
// **************************************************************
|
|
|
|
function cef_view_delegate_get_preferred_size(self: PCefViewDelegate; view: PCefView): TCefSize; stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
TempSize : TCefSize;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
TempSize.width := 0;
|
|
TempSize.height := 0;
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnGetPreferredSize(TCefViewRef.UnWrap(view),
|
|
TempSize);
|
|
|
|
Result.width := TempSize.width;
|
|
Result.height := TempSize.height;
|
|
end;
|
|
|
|
function cef_view_delegate_get_minimum_size(self: PCefViewDelegate; view: PCefView): TCefSize; stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
TempSize : TCefSize;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
TempSize.width := 0;
|
|
TempSize.height := 0;
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnGetMinimumSize(TCefViewRef.UnWrap(view),
|
|
TempSize);
|
|
|
|
Result.width := TempSize.width;
|
|
Result.height := TempSize.height;
|
|
end;
|
|
|
|
function cef_view_delegate_get_maximum_size(self: PCefViewDelegate; view: PCefView): TCefSize; stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
TempSize : TCefSize;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
TempSize.width := 0;
|
|
TempSize.height := 0;
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnGetMaximumSize(TCefViewRef.UnWrap(view),
|
|
TempSize);
|
|
|
|
Result.width := TempSize.width;
|
|
Result.height := TempSize.height;
|
|
end;
|
|
|
|
function cef_view_delegate_get_height_for_width(self: PCefViewDelegate; view: PCefView; width: Integer): Integer; stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
TempHeight : integer;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
TempHeight := 0;
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnGetHeightForWidth(TCefViewRef.UnWrap(view),
|
|
width,
|
|
TempHeight);
|
|
|
|
Result := TempHeight;
|
|
end;
|
|
|
|
procedure cef_view_delegate_on_parent_view_changed(self: PCefViewDelegate; view: PCefView; added: Integer; parent: PCefView); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnParentViewChanged(TCefViewRef.UnWrap(view),
|
|
added <> 0,
|
|
TCefViewRef.UnWrap(parent));
|
|
end;
|
|
|
|
procedure cef_view_delegate_on_child_view_changed(self: PCefViewDelegate; view: PCefView; added: Integer; child: PCefView); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnChildViewChanged(TCefViewRef.UnWrap(view),
|
|
added <> 0,
|
|
TCefViewRef.UnWrap(child));
|
|
end;
|
|
|
|
procedure cef_view_delegate_on_window_changed(self: PCefViewDelegate; view: PCefView; added: Integer); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnWindowChanged(TCefViewRef.UnWrap(view),
|
|
added <> 0);
|
|
end;
|
|
|
|
procedure cef_view_delegate_on_focus(self: PCefViewDelegate; view: PCefView); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnFocus(TCefViewRef.UnWrap(view));
|
|
end;
|
|
|
|
procedure cef_view_delegate_on_blur(self: PCefViewDelegate; view: PCefView); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefViewDelegateOwn) then
|
|
TCefViewDelegateOwn(TempObject).OnBlur(TCefViewRef.UnWrap(view));
|
|
end;
|
|
|
|
constructor TCefViewDelegateOwn.Create;
|
|
begin
|
|
inherited CreateData(SizeOf(TCefViewDelegate));
|
|
|
|
InitializeCEFMethods;
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.InitializeCEFMethods;
|
|
begin
|
|
with PCefViewDelegate(FData)^ do
|
|
begin
|
|
// Disable these 3 callbacks in 32 bits as a bad workaround for issue #278
|
|
// https://github.com/salvadordf/CEF4Delphi/issues/278
|
|
// The TCefRect return type seems to be messing the stack and the other parameters
|
|
// are assigned wrong addresses.
|
|
{$IFDEF CPUX64}
|
|
get_preferred_size := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_get_preferred_size;
|
|
get_minimum_size := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_get_minimum_size;
|
|
get_maximum_size := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_get_maximum_size;
|
|
{$ELSE}
|
|
get_preferred_size := nil;
|
|
get_minimum_size := nil;
|
|
get_maximum_size := nil;
|
|
{$ENDIF}
|
|
get_height_for_width := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_get_height_for_width;
|
|
on_parent_view_changed := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_on_parent_view_changed;
|
|
on_child_view_changed := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_on_child_view_changed;
|
|
on_window_changed := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_on_window_changed;
|
|
on_focus := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_on_focus;
|
|
on_blur := {$IFDEF FPC}@{$ENDIF}cef_view_delegate_on_blur;
|
|
end;
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnGetPreferredSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnGetMinimumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnGetMaximumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnWindowChanged(const view: ICefView; added: boolean);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnFocus(const view: ICefView);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
procedure TCefViewDelegateOwn.OnBlur(const view: ICefView);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
|
|
// **************************************************************
|
|
// ******************** TCustomViewDelegate *********************
|
|
// **************************************************************
|
|
|
|
constructor TCustomViewDelegate.Create(const events: ICefViewDelegateEvents);
|
|
begin
|
|
inherited Create;
|
|
|
|
FEvents := Pointer(events);
|
|
end;
|
|
|
|
destructor TCustomViewDelegate.Destroy;
|
|
begin
|
|
FEvents := nil;
|
|
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnGetPreferredSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnGetPreferredSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnGetPreferredSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnGetMinimumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnGetMinimumSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnGetMinimumSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnGetMaximumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnGetMaximumSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnGetMaximumSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnGetHeightForWidth(view, width, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnGetHeightForWidth', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnParentViewChanged(view, added, parent);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnParentViewChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnChildViewChanged(view, added, child);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnChildViewChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnWindowChanged(const view: ICefView; added: boolean);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnWindowChanged(view, added);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnWindowChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnFocus(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnFocus(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnFocus', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomViewDelegate.OnBlur(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefViewDelegateEvents(FEvents).doOnBlur(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomViewDelegate.OnBlur', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
end.
|
|
|