mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-24 08:02:15 +02:00
334 lines
12 KiB
ObjectPascal
334 lines
12 KiB
ObjectPascal
unit uCEFMenuButtonDelegate;
|
|
|
|
{$IFDEF FPC}
|
|
{$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, uCEFButtonDelegate;
|
|
|
|
type
|
|
TCefMenuButtonDelegateRef = class(TCefButtonDelegateRef, ICefMenuButtonDelegate)
|
|
protected
|
|
procedure OnMenuButtonPressed(const menu_button: ICefMenuButton; const screen_point: TCefPoint; const button_pressed_lock: ICefMenuButtonPressedLock);
|
|
|
|
public
|
|
/// <summary>
|
|
/// Returns a ICefMenuButtonDelegate instance using a PCefMenuButtonDelegate data pointer.
|
|
/// </summary>
|
|
class function UnWrap(data: Pointer): ICefMenuButtonDelegate;
|
|
end;
|
|
|
|
/// <summary>
|
|
/// Implement this interface to handle MenuButton events. The functions of this
|
|
/// interface will be called on the browser process UI thread unless otherwise
|
|
/// indicated.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/capi/views/cef_menu_button_delegate_capi.h">CEF source file: /include/capi/views/cef_menu_button_delegate_capi.h (cef_menu_button_delegate_t)</see></para>
|
|
/// </remarks>
|
|
TCefMenuButtonDelegateOwn = class(TCefButtonDelegateOwn, ICefMenuButtonDelegate)
|
|
protected
|
|
/// <summary>
|
|
/// Called when |button| is pressed. Call ICefMenuButton.ShowMenu() to
|
|
/// show a popup menu at |screen_point|. When showing a custom popup such as a
|
|
/// window keep a reference to |button_pressed_lock| until the popup is hidden
|
|
/// to maintain the pressed button state.
|
|
/// </summary>
|
|
procedure OnMenuButtonPressed(const menu_button: ICefMenuButton; const screen_point: TCefPoint; const button_pressed_lock: ICefMenuButtonPressedLock); virtual;
|
|
/// <summary>
|
|
/// Links the methods in the internal CEF record data pointer with the methods in this class.
|
|
/// </summary>
|
|
procedure InitializeCEFMethods; override;
|
|
public
|
|
constructor Create; override;
|
|
end;
|
|
|
|
/// <summary>
|
|
/// This class handles all the ICefMenuButtonDelegate methods which call the ICefMenuButtonDelegateEvents methods.
|
|
/// ICefMenuButtonDelegateEvents will be implemented by the control receiving the ICefMenuButtonDelegate events.
|
|
/// </summary>
|
|
TCustomMenuButtonDelegate = class(TCefMenuButtonDelegateOwn)
|
|
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;
|
|
procedure OnThemeChanged(const view: ICefView); override;
|
|
|
|
// ICefButtonDelegate
|
|
procedure OnButtonPressed(const button: ICefButton); override;
|
|
procedure OnButtonStateChanged(const button: ICefButton); override;
|
|
|
|
// ICefMenuButtonDelegate
|
|
procedure OnMenuButtonPressed(const menu_button: ICefMenuButton; const screen_point: TCefPoint; const button_pressed_lock: ICefMenuButtonPressedLock); override;
|
|
|
|
public
|
|
/// <summary>
|
|
/// Creates an instance of this class liked to an interface that's implemented by a control receiving the events.
|
|
/// </summary>
|
|
constructor Create(const events: ICefMenuButtonDelegateEvents); reintroduce;
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
uCEFLibFunctions, uCEFMiscFunctions, uCEFMenuButton, uCEFMenuButtonPressedLock;
|
|
|
|
|
|
// **************************************************************
|
|
// **************** TCefMenuButtonDelegateRef *******************
|
|
// **************************************************************
|
|
|
|
procedure TCefMenuButtonDelegateRef.OnMenuButtonPressed(const menu_button : ICefMenuButton;
|
|
const screen_point : TCefPoint;
|
|
const button_pressed_lock : ICefMenuButtonPressedLock);
|
|
begin
|
|
PCefMenuButtonDelegate(FData)^.on_menu_button_pressed(PCefMenuButtonDelegate(FData),
|
|
CefGetData(menu_button),
|
|
@screen_point,
|
|
CefGetData(button_pressed_lock));
|
|
end;
|
|
|
|
class function TCefMenuButtonDelegateRef.UnWrap(data: Pointer): ICefMenuButtonDelegate;
|
|
begin
|
|
if (data <> nil) then
|
|
Result := Create(data) as ICefMenuButtonDelegate
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
|
|
// **************************************************************
|
|
// **************** TCefMenuButtonDelegateOwn *******************
|
|
// **************************************************************
|
|
|
|
procedure cef_menubutton_delegate_on_menu_button_pressed( self : PCefMenuButtonDelegate;
|
|
menu_button : PCefMenuButton;
|
|
const screen_point : PCefPoint;
|
|
button_pressed_lock : PCefMenuButtonPressedLock); stdcall;
|
|
var
|
|
TempObject : TObject;
|
|
begin
|
|
TempObject := CefGetObject(self);
|
|
|
|
if (TempObject <> nil) and (TempObject is TCefMenuButtonDelegateOwn) then
|
|
TCefMenuButtonDelegateOwn(TempObject).OnMenuButtonPressed(TCefMenuButtonRef.UnWrap(menu_button),
|
|
screen_point^,
|
|
TCefMenuButtonPressedLockRef.UnWrap(button_pressed_lock));
|
|
end;
|
|
|
|
constructor TCefMenuButtonDelegateOwn.Create;
|
|
begin
|
|
inherited CreateData(SizeOf(TCefMenuButtonDelegate));
|
|
|
|
InitializeCEFMethods;
|
|
end;
|
|
|
|
procedure TCefMenuButtonDelegateOwn.InitializeCEFMethods;
|
|
begin
|
|
inherited InitializeCEFMethods;
|
|
|
|
with PCefMenuButtonDelegate(FData)^ do
|
|
on_menu_button_pressed := {$IFDEF FPC}@{$ENDIF}cef_menubutton_delegate_on_menu_button_pressed;
|
|
end;
|
|
|
|
procedure TCefMenuButtonDelegateOwn.OnMenuButtonPressed(const menu_button : ICefMenuButton;
|
|
const screen_point : TCefPoint;
|
|
const button_pressed_lock : ICefMenuButtonPressedLock);
|
|
begin
|
|
//
|
|
end;
|
|
|
|
|
|
// **************************************************************
|
|
// **************** TCustomMenuButtonDelegate *******************
|
|
// **************************************************************
|
|
|
|
constructor TCustomMenuButtonDelegate.Create(const events: ICefMenuButtonDelegateEvents);
|
|
begin
|
|
inherited Create;
|
|
|
|
FEvents := Pointer(events);
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnGetPreferredSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnGetPreferredSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnGetPreferredSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnGetMinimumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnGetMinimumSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnGetMinimumSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnGetMaximumSize(const view: ICefView; var aResult : TCefSize);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnGetMaximumSize(view, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnGetMaximumSize', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnGetHeightForWidth(const view: ICefView; width: Integer; var aResult: Integer);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnGetHeightForWidth(view, width, aResult);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnGetHeightForWidth', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnParentViewChanged(const view: ICefView; added: boolean; const parent: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnParentViewChanged(view, added, parent);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnParentViewChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnChildViewChanged(const view: ICefView; added: boolean; const child: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnChildViewChanged(view, added, child);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnChildViewChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnWindowChanged(const view: ICefView; added: boolean);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnWindowChanged(view, added);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnWindowChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnLayoutChanged(const view: ICefView; new_bounds: TCefRect);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnLayoutChanged(view, new_bounds);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnLayoutChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnFocus(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnFocus(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnFocus', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnBlur(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnBlur(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnBlur', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnThemeChanged(const view: ICefView);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnThemeChanged(view);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnThemeChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnButtonPressed(const button: ICefButton);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnButtonPressed(button);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnButtonPressed', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnButtonStateChanged(const button: ICefButton);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnButtonStateChanged(button);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnButtonStateChanged', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TCustomMenuButtonDelegate.OnMenuButtonPressed(const menu_button : ICefMenuButton;
|
|
const screen_point : TCefPoint;
|
|
const button_pressed_lock : ICefMenuButtonPressedLock);
|
|
begin
|
|
try
|
|
if (FEvents <> nil) then
|
|
ICefMenuButtonDelegateEvents(FEvents).doOnMenuButtonPressed(menu_button, screen_point, button_pressed_lock);
|
|
except
|
|
on e : exception do
|
|
if CustomExceptionHandler('TCustomMenuButtonDelegate.OnMenuButtonPressed', e) then raise;
|
|
end;
|
|
end;
|
|
|
|
end.
|
|
|