mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
448 lines
14 KiB
ObjectPascal
448 lines
14 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 © 2021 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 uCEFTextfieldComponent;
|
|
|
|
{$IFDEF FPC}
|
|
{$MODE OBJFPC}{$H+}
|
|
{$ENDIF}
|
|
|
|
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
|
|
{$MINENUMSIZE 4}
|
|
|
|
{$I cef.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
{$IFDEF DELPHI16_UP}
|
|
{$IFDEF MSWINDOWS}WinApi.Windows,{$ENDIF} System.Classes,
|
|
{$ELSE}
|
|
{$IFDEF MSWINDOWS}Windows,{$ENDIF} Classes,
|
|
{$IFDEF FPC}
|
|
LCLProc, LCLType, LCLIntf, LResources, InterfaceBase,
|
|
{$ENDIF}
|
|
{$ENDIF}
|
|
uCEFTypes, uCEFInterfaces, uCEFViewsFrameworkEvents, uCEFViewComponent;
|
|
|
|
type
|
|
{$IFNDEF FPC}{$IFDEF DELPHI16_UP}[ComponentPlatformsAttribute(pidWin32 or pidWin64)]{$ENDIF}{$ENDIF}
|
|
TCEFTextfieldComponent = class(TCEFViewComponent, ICefTextfieldDelegateEvents)
|
|
protected
|
|
FTextfield : ICefTextfield;
|
|
|
|
// ICefTextfieldDelegateEvents
|
|
FOnTextfieldKeyEvent : TOnTextfieldKeyEventEvent;
|
|
FOnAfterUserAction : TOnAfterUserActionEvent;
|
|
|
|
procedure DestroyView; override;
|
|
procedure Initialize; override;
|
|
|
|
function GetInitialized : boolean; override;
|
|
function GetAsView : ICefView; override;
|
|
function GetAsTextfield : ICefTextfield; override;
|
|
function GetIsPasswordInput : boolean;
|
|
function GetIsReadOnly : boolean;
|
|
function GetText : ustring;
|
|
function GetHasSelection : boolean;
|
|
function GetSelectedText : ustring;
|
|
function GetSelectedRange : TCefRange;
|
|
function GetCursorPosition : NativeUInt;
|
|
function GetTextColor : TCefColor;
|
|
function GetSelectionTextColor : TCefColor;
|
|
function GetSelectionBackgroundColor : TCefColor;
|
|
function GetPlaceholderText : ustring;
|
|
|
|
procedure SetPasswordInput(password_input: boolean);
|
|
procedure SetReadOnly(read_only: boolean);
|
|
procedure SetText(const text_: ustring);
|
|
procedure SetTextColor(color: TCefColor);
|
|
procedure SetSelectionTextColor(color: TCefColor);
|
|
procedure SetSelectionBackgroundColor(color: TCefColor);
|
|
procedure SetPlaceholderText(const text_: ustring);
|
|
|
|
// ICefTextfieldDelegateEvents
|
|
procedure doOnKeyEvent(const textfield: ICefTextfield; const event: TCefKeyEvent; var aResult : boolean);
|
|
procedure doOnAfterUserAction(const textfield: ICefTextfield);
|
|
|
|
// ICefViewDelegateEvents
|
|
procedure doCreateCustomView; override;
|
|
|
|
public
|
|
procedure CreateTextField;
|
|
procedure AppendText(const text_: ustring);
|
|
procedure InsertOrReplaceText(const text_: ustring);
|
|
procedure SelectAll(reversed: boolean);
|
|
procedure ClearSelection;
|
|
procedure SelectRange(const range: TCefRange);
|
|
procedure SetFontList(const font_list: ustring);
|
|
procedure ApplyTextColor(color: TCefColor; const range: TCefRange);
|
|
procedure ApplyTextStyle(style: TCefTextStyle; add: boolean; const range: TCefRange);
|
|
function IsCommandEnabled(command_id: TCefTextFieldCommands): boolean;
|
|
procedure ExecuteCommand(command_id: TCefTextFieldCommands);
|
|
procedure ClearEditHistory;
|
|
procedure SetAccessibleName(const name_: ustring);
|
|
procedure SetPlaceholderTextColor(color: TCefColor);
|
|
|
|
property PasswordInput : boolean read GetIsPasswordInput write SetPasswordInput;
|
|
property ReadOnly : boolean read GetIsReadOnly write SetReadOnly;
|
|
property Text : ustring read GetText write SetText;
|
|
property SelectedText : ustring read GetSelectedText;
|
|
property TextColor : TCefColor read GetTextColor write SetTextColor;
|
|
property SelectionTextColor : TCefColor read GetSelectionTextColor write SetSelectionTextColor;
|
|
property SelectionBackgroundColor : TCefColor read GetSelectionBackgroundColor write SetSelectionBackgroundColor;
|
|
property PlaceholderText : ustring read GetPlaceholderText write SetPlaceholderText;
|
|
property HasSelection : boolean read GetHasSelection;
|
|
|
|
published
|
|
property OnTextfieldKeyEvent : TOnTextfieldKeyEventEvent read FOnTextfieldKeyEvent write FOnTextfieldKeyEvent;
|
|
property OnAfterUserAction : TOnAfterUserActionEvent read FOnAfterUserAction write FOnAfterUserAction;
|
|
end;
|
|
|
|
{$IFDEF FPC}
|
|
procedure Register;
|
|
{$ENDIF}
|
|
|
|
// *********************************************************
|
|
// ********************** ATTENTION ! **********************
|
|
// *********************************************************
|
|
// ** **
|
|
// ** MANY OF THE EVENTS IN CEF4DELPHI COMPONENTS LIKE **
|
|
// ** TCHROMIUM, TFMXCHROMIUM OR TCEFAPPLICATION ARE **
|
|
// ** EXECUTED IN A CEF THREAD BY DEFAULT. **
|
|
// ** **
|
|
// ** WINDOWS CONTROLS MUST BE CREATED AND DESTROYED IN **
|
|
// ** THE SAME THREAD TO AVOID ERRORS. **
|
|
// ** SOME OF THEM RECREATE THE HANDLERS IF THEY ARE **
|
|
// ** MODIFIED AND CAN CAUSE THE SAME ERRORS. **
|
|
// ** **
|
|
// ** DON'T CREATE, MODIFY OR DESTROY WINDOWS CONTROLS **
|
|
// ** INSIDE THE CEF4DELPHI EVENTS AND USE **
|
|
// ** SYNCHRONIZATION OBJECTS TO PROTECT VARIABLES AND **
|
|
// ** FIELDS IF THEY ARE ALSO USED IN THE MAIN THREAD. **
|
|
// ** **
|
|
// ** READ THIS FOR MORE INFORMATION : **
|
|
// ** https://www.briskbard.com/index.php?pageid=cef **
|
|
// ** **
|
|
// ** USE OUR FORUMS FOR MORE QUESTIONS : **
|
|
// ** https://www.briskbard.com/forum/ **
|
|
// ** **
|
|
// *********************************************************
|
|
// *********************************************************
|
|
|
|
implementation
|
|
|
|
uses
|
|
uCEFTextfieldDelegate, uCEFMiscFunctions, uCEFTask, uCEFTextfield;
|
|
|
|
procedure TCEFTextfieldComponent.Initialize;
|
|
begin
|
|
inherited Initialize;
|
|
|
|
FTextfield := nil;
|
|
FOnTextfieldKeyEvent := nil;
|
|
FOnAfterUserAction := nil;
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.DestroyView;
|
|
begin
|
|
FTextfield := nil;
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.CreateTextField;
|
|
begin
|
|
CreateView;
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.doOnKeyEvent(const textfield : ICefTextfield;
|
|
const event : TCefKeyEvent;
|
|
var aResult : boolean);
|
|
begin
|
|
if assigned(FOnTextfieldKeyEvent) then
|
|
FOnTextfieldKeyEvent(self, textfield, event, aResult);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.doOnAfterUserAction(const textfield: ICefTextfield);
|
|
begin
|
|
if assigned(FOnAfterUserAction) then
|
|
FOnAfterUserAction(self, textfield);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.doCreateCustomView;
|
|
var
|
|
TempDelegate : ICefTextfieldDelegate;
|
|
begin
|
|
if (FTextfield = nil) then
|
|
try
|
|
TempDelegate := TCustomTextfieldDelegate.Create(self);
|
|
FTextfield := TCefTextfieldRef.CreateTextField(TempDelegate);
|
|
finally
|
|
TempDelegate := nil;
|
|
end;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetInitialized : boolean;
|
|
begin
|
|
Result := (FTextfield <> nil);
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetAsView : ICefView;
|
|
begin
|
|
Result := FTextfield as ICefView;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetAsTextfield : ICefTextfield;
|
|
begin
|
|
Result := FTextfield;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetIsPasswordInput : boolean;
|
|
begin
|
|
Result := Initialized and FTextfield.IsPasswordInput;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetIsReadOnly : boolean;
|
|
begin
|
|
Result := Initialized and FTextfield.IsReadOnly;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetText : ustring;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.GetText
|
|
else
|
|
Result := '';
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetHasSelection : boolean;
|
|
begin
|
|
Result := Initialized and FTextfield.HasSelection;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetSelectedText : ustring;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.SelectedText
|
|
else
|
|
Result := '';
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetSelectedRange : TCefRange;
|
|
var
|
|
TempRange : TCefRange;
|
|
begin
|
|
if Initialized then
|
|
TempRange := FTextfield.GetSelectedRange
|
|
else
|
|
begin
|
|
TempRange.from := 0;
|
|
TempRange.to_ := 0;
|
|
end;
|
|
|
|
Result := TempRange;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetCursorPosition : NativeUInt;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.GetCursorPosition
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetTextColor : TCefColor;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.GetTextColor
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetSelectionTextColor : TCefColor;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.GetSelectionTextColor
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetSelectionBackgroundColor : TCefColor;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.GetSelectionBackgroundColor
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.GetPlaceholderText : ustring;
|
|
begin
|
|
if Initialized then
|
|
Result := FTextfield.GetPlaceholderText
|
|
else
|
|
Result := '';
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetPasswordInput(password_input: boolean);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetPasswordInput(password_input);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetReadOnly(read_only: boolean);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetReadOnly(read_only);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetText(const text_: ustring);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetText(text_);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetTextColor(color: TCefColor);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetTextColor(color);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetSelectionTextColor(color: TCefColor);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetSelectionTextColor(color);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetSelectionBackgroundColor(color: TCefColor);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetSelectionBackgroundColor(color);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetPlaceholderText(const text_: ustring);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetPlaceholderText(text_);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.AppendText(const text_: ustring);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.AppendText(text_);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.InsertOrReplaceText(const text_: ustring);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.InsertOrReplaceText(text_);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SelectAll(reversed: boolean);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SelectAll(reversed);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.ClearSelection;
|
|
begin
|
|
if Initialized then
|
|
FTextfield.ClearSelection;
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SelectRange(const range: TCefRange);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SelectRange(range);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetFontList(const font_list: ustring);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetFontList(font_list);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.ApplyTextColor(color: TCefColor; const range: TCefRange);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.ApplyTextColor(color, range);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.ApplyTextStyle(style: TCefTextStyle; add: boolean; const range: TCefRange);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.ApplyTextStyle(style, add, range);
|
|
end;
|
|
|
|
function TCEFTextfieldComponent.IsCommandEnabled(command_id: TCefTextFieldCommands): boolean;
|
|
begin
|
|
Result := Initialized and FTextfield.IsCommandEnabled(command_id);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.ExecuteCommand(command_id: TCefTextFieldCommands);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.ExecuteCommand(command_id);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.ClearEditHistory;
|
|
begin
|
|
if Initialized then
|
|
FTextfield.ClearEditHistory;
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetAccessibleName(const name_: ustring);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetAccessibleName(name_);
|
|
end;
|
|
|
|
procedure TCEFTextfieldComponent.SetPlaceholderTextColor(color: TCefColor);
|
|
begin
|
|
if Initialized then
|
|
FTextfield.SetPlaceholderTextColor(color);
|
|
end;
|
|
|
|
{$IFDEF FPC}
|
|
procedure Register;
|
|
begin
|
|
{$I res/tceftextfieldcomponent.lrs}
|
|
RegisterComponents('Chromium Views Framework', [TCEFTextfieldComponent]);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
|
|
end.
|