mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-24 08:02:15 +02:00
139 lines
4.4 KiB
ObjectPascal
139 lines
4.4 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 CEF3 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 © 2017 Salvador Díaz 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 uCEFAccessibilityHandler;
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{$IFNDEF CPUX64}
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{$ALIGN ON}
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{$MINENUMSIZE 4}
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{$ENDIF}
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{$I cef.inc}
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interface
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uses
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes, uCEFChromiumEvents;
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type
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TCEFAccessibilityHandlerOwn = class(TCefBaseRefCountedOwn, ICefAccessibilityHandler)
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protected
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procedure OnAccessibilityTreeChange(const value: ICefValue); virtual;
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procedure OnAccessibilityLocationChange(const value: ICefValue); virtual;
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public
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constructor Create; virtual;
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end;
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TCustomAccessibilityHandler = class(TCEFAccessibilityHandlerOwn)
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protected
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FOnTreeChange : TOnAccessibilityEvent;
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FOnLocationChange : TOnAccessibilityEvent;
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procedure OnAccessibilityTreeChange(const value: ICefValue); override;
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procedure OnAccessibilityLocationChange(const value: ICefValue); override;
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public
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constructor Create; override;
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property OnTreeChange : TOnAccessibilityEvent read FOnTreeChange write FOnTreeChange;
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property OnLocationChange : TOnAccessibilityEvent read FOnLocationChange write FOnLocationChange;
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end;
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implementation
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uses
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uCEFMiscFunctions, uCEFValue;
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procedure cef_accessibility_handler_on_accessibility_tree_change(self: PCefAccessibilityHandler; value: PCefValue); stdcall;
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begin
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with TCEFAccessibilityHandlerOwn(CefGetObject(self)) do
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OnAccessibilityTreeChange(TCefValueRef.UnWrap(value));
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end;
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procedure cef_accessibility_handler_on_accessibility_location_change(self: PCefAccessibilityHandler; value: PCefValue); stdcall;
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begin
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with TCEFAccessibilityHandlerOwn(CefGetObject(self)) do
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OnAccessibilityLocationChange(TCefValueRef.UnWrap(value));
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end;
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constructor TCEFAccessibilityHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCEFAccessibilityHandler));
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with PCEFAccessibilityHandler(FData)^ do
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begin
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on_accessibility_tree_change := cef_accessibility_handler_on_accessibility_tree_change;
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on_accessibility_location_change := cef_accessibility_handler_on_accessibility_location_change;
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end;
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end;
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procedure TCEFAccessibilityHandlerOwn.OnAccessibilityTreeChange(const value: ICefValue);
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begin
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//
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end;
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procedure TCEFAccessibilityHandlerOwn.OnAccessibilityLocationChange(const value: ICefValue);
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begin
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//
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end;
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// *****************************************
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// ****** TCustomAccessibilityHandler ******
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// *****************************************
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constructor TCustomAccessibilityHandler.Create;
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begin
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inherited Create;
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FOnTreeChange := nil;
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FOnLocationChange := nil;
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end;
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procedure TCustomAccessibilityHandler.OnAccessibilityTreeChange(const value: ICefValue);
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begin
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if assigned(FOnTreeChange) then FOnTreeChange(self, value);
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end;
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procedure TCustomAccessibilityHandler.OnAccessibilityLocationChange(const value: ICefValue);
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begin
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if assigned(FOnLocationChange) then FOnLocationChange(self, value);
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end;
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end.
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