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CEF4Delphi/source/uCEFScrollView.pas
Salvador Díaz Fau 318318c85c Added Views Framework support #244
Added ToolBoxBrowser2 demo
Added TCEFBrowserViewComponent.
Added TCEFLabelButtonComponent.
Added TCEFMenuButtonComponent.
Added TCEFPanelComponent.
Added TCEFTextfieldComponent.
Added TCEFScrollViewComponent.
Added TCEFWindowComponent.
2020-05-05 18:10:33 +02:00

141 lines
4.3 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 © 2020 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 uCEFScrollView;
{$IFDEF FPC}
{$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, uCEFView;
type
TCefScrollViewRef = class(TCefViewRef, ICefScrollView)
protected
procedure SetContentView(const view: ICefView);
function GetContentView : ICefView;
function GetVisibleContentRect : TCefRect;
function HasHorizontalScrollbar : boolean;
function GetHorizontalScrollbarHeight : Integer;
function HasVerticalScrollbar : boolean;
function GetVerticalScrollbarWidth : Integer;
public
class function UnWrap(data: Pointer): ICefScrollView;
class function CreateScrollView(const delegate: ICefViewDelegate): ICefScrollView;
end;
implementation
uses
uCEFLibFunctions, uCEFMiscFunctions;
procedure TCefScrollViewRef.SetContentView(const view: ICefView);
begin
PCefScrollView(FData)^.set_content_view(PCefScrollView(FData),
CefGetData(view));
end;
function TCefScrollViewRef.GetContentView : ICefView;
begin
Result := TCefViewRef.UnWrap(PCefScrollView(FData)^.get_content_view(PCefScrollView(FData)));
end;
function TCefScrollViewRef.GetVisibleContentRect : TCefRect;
begin
Result := PCefScrollView(FData)^.get_visible_content_rect(PCefScrollView(FData));
end;
function TCefScrollViewRef.HasHorizontalScrollbar : boolean;
begin
Result := (PCefScrollView(FData)^.has_horizontal_scrollbar(PCefScrollView(FData)) <> 0);
end;
function TCefScrollViewRef.GetHorizontalScrollbarHeight : Integer;
begin
Result := PCefScrollView(FData)^.get_horizontal_scrollbar_height(PCefScrollView(FData));
end;
function TCefScrollViewRef.HasVerticalScrollbar : boolean;
begin
Result := (PCefScrollView(FData)^.has_vertical_scrollbar(PCefScrollView(FData)) <> 0);
end;
function TCefScrollViewRef.GetVerticalScrollbarWidth : Integer;
begin
Result := PCefScrollView(FData)^.get_vertical_scrollbar_width(PCefScrollView(FData));
end;
class function TCefScrollViewRef.UnWrap(data: Pointer): ICefScrollView;
begin
if (data <> nil) then
Result := Create(data) as ICefScrollView
else
Result := nil;
end;
class function TCefScrollViewRef.CreateScrollView(const delegate: ICefViewDelegate): ICefScrollView;
var
TempScrollView : PCefScrollView;
begin
Result := nil;
if (delegate <> nil) then
begin
TempScrollView := cef_scroll_view_create(CefGetData(delegate));
if (TempScrollView <> nil) then
Result := Create(TempScrollView) as ICefScrollView;
end;
end;
end.