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Added Views Framework support #244
Added ToolBoxBrowser2 demo Added TCEFBrowserViewComponent. Added TCEFLabelButtonComponent. Added TCEFMenuButtonComponent. Added TCEFPanelComponent. Added TCEFTextfieldComponent. Added TCEFScrollViewComponent. Added TCEFWindowComponent.
This commit is contained in:
Salvador Díaz Fau
267
source/uCEFLabelButtonComponent.pas
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267
source/uCEFLabelButtonComponent.pas
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// ************************************************************************
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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 � 2020 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 uCEFLabelButtonComponent;
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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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{$IFDEF MSWINDOWS}WinApi.Windows,{$ENDIF} System.Classes,
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{$ELSE}
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{$IFDEF MSWINDOWS}Windows,{$ENDIF} Classes,
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{$IFDEF FPC}
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LCLProc, LCLType, LCLIntf, LResources, InterfaceBase,
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{$ENDIF}
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{$ENDIF}
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uCEFTypes, uCEFInterfaces, uCEFViewsFrameworkEvents, uCEFButtonComponent;
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type
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{$IFNDEF FPC}{$IFDEF DELPHI16_UP}[ComponentPlatformsAttribute(pidWin32 or pidWin64)]{$ENDIF}{$ENDIF}
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TCEFLabelButtonComponent = class(TCEFButtonComponent)
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protected
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FLabelButton : ICefLabelButton;
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FText : ustring;
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procedure DestroyView; override;
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procedure Initialize; override;
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function GetInitialized : boolean; override;
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function GetAsView : ICefView; override;
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function GetAsButton : ICefButton; override;
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function GetAsLabelButton : ICefLabelButton; override;
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function GetAsMenuButton : ICefMenuButton; virtual;
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function GetText : ustring;
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function GetImage(button_state: TCefButtonState): ICefImage;
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procedure SetText(const text_: ustring);
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procedure SetImage(button_state: TCefButtonState; const image: ICefImage);
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// ICefViewDelegateEvents
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procedure doCreateCustomView; override;
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public
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procedure CreateLabelButton(const aText : ustring);
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procedure SetTextColor(for_state: TCefButtonState; color: TCefColor);
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procedure SetEnabledTextColors(color: TCefColor);
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procedure SetFontList(const font_list: ustring);
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procedure SetHorizontalAlignment(alignment: TCefHorizontalAlignment);
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procedure SetMinimumSize(const size_: TCefSize);
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procedure SetMaximumSize(const size_: TCefSize);
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property Text : ustring read GetText write SetText;
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property Image[button_state : TCefButtonState] : ICefImage read GetImage write SetImage;
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property AsMenuButton : ICefMenuButton read GetAsMenuButton;
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end;
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{$IFDEF FPC}
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procedure Register;
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{$ENDIF}
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// *********************************************************
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// ********************** ATTENTION ! **********************
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// *********************************************************
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// ** **
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// ** MANY OF THE EVENTS IN CEF4DELPHI COMPONENTS LIKE **
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// ** TCHROMIUM, TFMXCHROMIUM OR TCEFAPPLICATION ARE **
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// ** EXECUTED IN A CEF THREAD BY DEFAULT. **
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// ** **
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// ** WINDOWS CONTROLS MUST BE CREATED AND DESTROYED IN **
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// ** THE SAME THREAD TO AVOID ERRORS. **
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// ** SOME OF THEM RECREATE THE HANDLERS IF THEY ARE **
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// ** MODIFIED AND CAN CAUSE THE SAME ERRORS. **
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// ** **
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// ** DON'T CREATE, MODIFY OR DESTROY WINDOWS CONTROLS **
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// ** INSIDE THE CEF4DELPHI EVENTS AND USE **
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// ** SYNCHRONIZATION OBJECTS TO PROTECT VARIABLES AND **
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// ** FIELDS IF THEY ARE ALSO USED IN THE MAIN THREAD. **
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// ** **
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// ** READ THIS FOR MORE INFORMATION : **
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// ** https://www.briskbard.com/index.php?pageid=cef **
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// ** **
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// ** USE OUR FORUMS FOR MORE QUESTIONS : **
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// ** https://www.briskbard.com/forum/ **
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// ** **
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// *********************************************************
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// *********************************************************
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implementation
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uses
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uCEFLabelButton, uCEFMiscFunctions, uCEFButtonDelegate;
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procedure TCEFLabelButtonComponent.CreateLabelButton(const aText : ustring);
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begin
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FText := aText;
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CreateView;
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end;
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procedure TCEFLabelButtonComponent.doCreateCustomView;
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var
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TempDelegate : ICefButtonDelegate;
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begin
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if (FLabelButton = nil) then
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try
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TempDelegate := TCustomButtonDelegate.Create(self);
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FLabelButton := TCefLabelButtonRef.CreateLabelButton(TempDelegate, FText);
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finally
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TempDelegate := nil;
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end;
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end;
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procedure TCEFLabelButtonComponent.DestroyView;
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begin
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inherited DestroyView;
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FLabelButton := nil;
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end;
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procedure TCEFLabelButtonComponent.Initialize;
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begin
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inherited Initialize;
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FLabelButton := nil;
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end;
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function TCEFLabelButtonComponent.GetInitialized : boolean;
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begin
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Result := (FLabelButton <> nil);
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end;
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function TCEFLabelButtonComponent.GetAsView : ICefView;
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begin
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if Initialized then
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Result := FLabelButton as ICefView
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else
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Result := nil;
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end;
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function TCEFLabelButtonComponent.GetAsButton : ICefButton;
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begin
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if Initialized then
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Result := FLabelButton as ICefButton
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else
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Result := nil;
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end;
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function TCEFLabelButtonComponent.GetAsLabelButton : ICefLabelButton;
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begin
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Result := FLabelButton;
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end;
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function TCEFLabelButtonComponent.GetAsMenuButton : ICefMenuButton;
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begin
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Result := nil;
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end;
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procedure TCEFLabelButtonComponent.SetText(const text_: ustring);
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begin
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FText := text_;
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if Initialized then
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AsLabelButton.SetText(FText);
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end;
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function TCEFLabelButtonComponent.GetText : ustring;
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begin
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if Initialized then
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FText := AsLabelButton.GetText;
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Result := FText;
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end;
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procedure TCEFLabelButtonComponent.SetImage(button_state: TCefButtonState; const image: ICefImage);
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begin
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if Initialized then AsLabelButton.SetImage(button_state, image);
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end;
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function TCEFLabelButtonComponent.GetImage(button_state: TCefButtonState): ICefImage;
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begin
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if Initialized then
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Result := AsLabelButton.GetImage(button_state)
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else
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Result := nil;
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end;
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procedure TCEFLabelButtonComponent.SetTextColor(for_state: TCefButtonState; color: TCefColor);
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begin
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if Initialized then AsLabelButton.SetTextColor(for_state, color);
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end;
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procedure TCEFLabelButtonComponent.SetEnabledTextColors(color: TCefColor);
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begin
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if Initialized then AsLabelButton.SetEnabledTextColors(color);
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end;
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procedure TCEFLabelButtonComponent.SetFontList(const font_list: ustring);
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begin
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if Initialized then AsLabelButton.SetFontList(font_list);
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end;
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procedure TCEFLabelButtonComponent.SetHorizontalAlignment(alignment: TCefHorizontalAlignment);
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begin
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if Initialized then AsLabelButton.SetHorizontalAlignment(alignment);
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end;
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procedure TCEFLabelButtonComponent.SetMinimumSize(const size_: TCefSize);
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begin
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if Initialized then AsLabelButton.SetMinimumSize(size_);
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end;
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procedure TCEFLabelButtonComponent.SetMaximumSize(const size_: TCefSize);
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begin
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if Initialized then AsLabelButton.SetMaximumSize(size_);
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end;
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{$IFDEF FPC}
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procedure Register;
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begin
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{$I res/tceflabelbuttoncomponent.lrs}
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RegisterComponents('Chromium Views Framework', [TCEFLabelButtonComponent]);
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end;
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{$ENDIF}
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end.
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