mirror of
https://github.com/salvadordf/CEF4Delphi.git
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141 lines
4.3 KiB
ObjectPascal
141 lines
4.3 KiB
ObjectPascal
// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
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// browser in Delphi applications.
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//
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// The original license of DCEF3 still applies to CEF4Delphi.
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//
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// For more information about CEF4Delphi visit :
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// https://www.briskbard.com/index.php?lang=en&pageid=cef
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//
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// Copyright © 2022 Salvador Diaz Fau. All rights reserved.
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//
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// ************************************************************************
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// ************ vvvv Original license and comments below vvvv *************
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// ************************************************************************
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(*
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* Delphi Chromium Embedded 3
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*
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* Usage allowed under the restrictions of the Lesser GNU General Public License
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* or alternatively the restrictions of the Mozilla Public License 1.1
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* Unit owner : Henri Gourvest <hgourvest@gmail.com>
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* Web site : http://www.progdigy.com
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* Repository : http://code.google.com/p/delphichromiumembedded/
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* Group : http://groups.google.com/group/delphichromiumembedded
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*
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* Embarcadero Technologies, Inc is not permitted to use or redistribute
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* this source code without explicit permission.
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*
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*)
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unit uCEFScrollView;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
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uses
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{$IFDEF DELPHI16_UP}
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System.Classes, System.SysUtils,
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{$ELSE}
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Classes, SysUtils,
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{$ENDIF}
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes, uCEFView;
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type
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TCefScrollViewRef = class(TCefViewRef, ICefScrollView)
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protected
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procedure SetContentView(const view: ICefView);
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function GetContentView : ICefView;
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function GetVisibleContentRect : TCefRect;
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function HasHorizontalScrollbar : boolean;
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function GetHorizontalScrollbarHeight : Integer;
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function HasVerticalScrollbar : boolean;
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function GetVerticalScrollbarWidth : Integer;
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public
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class function UnWrap(data: Pointer): ICefScrollView;
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class function CreateScrollView(const delegate: ICefViewDelegate): ICefScrollView;
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end;
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implementation
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uses
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uCEFLibFunctions, uCEFMiscFunctions;
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procedure TCefScrollViewRef.SetContentView(const view: ICefView);
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begin
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PCefScrollView(FData)^.set_content_view(PCefScrollView(FData),
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CefGetData(view));
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end;
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function TCefScrollViewRef.GetContentView : ICefView;
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begin
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Result := TCefViewRef.UnWrap(PCefScrollView(FData)^.get_content_view(PCefScrollView(FData)));
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end;
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function TCefScrollViewRef.GetVisibleContentRect : TCefRect;
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begin
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Result := PCefScrollView(FData)^.get_visible_content_rect(PCefScrollView(FData));
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end;
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function TCefScrollViewRef.HasHorizontalScrollbar : boolean;
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begin
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Result := (PCefScrollView(FData)^.has_horizontal_scrollbar(PCefScrollView(FData)) <> 0);
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end;
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function TCefScrollViewRef.GetHorizontalScrollbarHeight : Integer;
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begin
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Result := PCefScrollView(FData)^.get_horizontal_scrollbar_height(PCefScrollView(FData));
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end;
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function TCefScrollViewRef.HasVerticalScrollbar : boolean;
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begin
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Result := (PCefScrollView(FData)^.has_vertical_scrollbar(PCefScrollView(FData)) <> 0);
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end;
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function TCefScrollViewRef.GetVerticalScrollbarWidth : Integer;
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begin
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Result := PCefScrollView(FData)^.get_vertical_scrollbar_width(PCefScrollView(FData));
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end;
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class function TCefScrollViewRef.UnWrap(data: Pointer): ICefScrollView;
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begin
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if (data <> nil) then
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Result := Create(data) as ICefScrollView
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else
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Result := nil;
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end;
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class function TCefScrollViewRef.CreateScrollView(const delegate: ICefViewDelegate): ICefScrollView;
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var
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TempScrollView : PCefScrollView;
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begin
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Result := nil;
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if (delegate <> nil) then
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begin
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TempScrollView := cef_scroll_view_create(CefGetData(delegate));
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if (TempScrollView <> nil) then
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Result := Create(TempScrollView) as ICefScrollView;
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end;
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end;
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end.
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