mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
92da537bf7
Fix Delphi build issue in MacOS Added TCefApplicationCore.CheckCEFResources Added TCefApplicationCore.CheckCEFDLL Set TCefApplicationCore.CheckCEFFiles to false by default in MacOS
365 lines
11 KiB
ObjectPascal
365 lines
11 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 uCEFFMXChromium;
|
|
|
|
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
|
|
{$MINENUMSIZE 4}
|
|
|
|
{$I cef.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
System.Classes, System.Types,
|
|
{$IFDEF MSWINDOWS}
|
|
WinApi.Windows, WinApi.Messages, FMX.Platform.Win,
|
|
{$ENDIF}
|
|
FMX.Types, FMX.Platform, FMX.Forms, FMX.Controls, FMX.Graphics,
|
|
uCEFTypes, uCEFInterfaces, uCEFChromiumCore;
|
|
|
|
type
|
|
{$IFNDEF FPC}{$IFDEF DELPHI16_UP}[ComponentPlatformsAttribute(pidWin32 or pidWin64)]{$ENDIF}{$ENDIF}
|
|
TFMXChromium = class(TChromiumCore, IChromiumEvents)
|
|
protected
|
|
function GetParentFormHandle : TCefWindowHandle; override;
|
|
function GetParentForm : TCustomForm;
|
|
function GetScreenScale : Single;
|
|
procedure InitializeDevToolsWindowInfo; virtual;
|
|
|
|
public
|
|
procedure ShowDevTools(inspectElementAt: TPoint);
|
|
procedure CloseDevTools;
|
|
|
|
procedure MoveFormTo(const x, y: Integer);
|
|
procedure MoveFormBy(const x, y: Integer);
|
|
procedure ResizeFormWidthTo(const x : Integer);
|
|
procedure ResizeFormHeightTo(const y : Integer);
|
|
procedure SetFormLeftTo(const x : Integer);
|
|
procedure SetFormTopTo(const y : Integer);
|
|
|
|
function CreateBrowser(const aWindowName : ustring = ''; const aContext : ICefRequestContext = nil; const aExtraInfo : ICefDictionaryValue = nil) : boolean; overload; virtual;
|
|
function SaveAsBitmapStream(var aStream : TStream; const aRect : System.Types.TRect) : boolean;
|
|
function TakeSnapshot(var aBitmap : TBitmap; const aRect : System.Types.TRect) : boolean;
|
|
|
|
property ScreenScale : single read GetScreenScale;
|
|
end;
|
|
|
|
// *********************************************************
|
|
// ********************** 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
|
|
{$IFDEF MSWINDOWS}FMX.Helpers.Win,{$ENDIF}
|
|
System.SysUtils, System.Math,
|
|
uCEFApplicationCore;
|
|
|
|
function TFMXChromium.CreateBrowser(const aWindowName : ustring;
|
|
const aContext : ICefRequestContext;
|
|
const aExtraInfo : ICefDictionaryValue) : boolean;
|
|
var
|
|
TempHandle : TCefWindowHandle;
|
|
begin
|
|
{$IFDEF MACOS}
|
|
TempHandle := nil;
|
|
{$ELSE}
|
|
TempHandle := 0;
|
|
{$ENDIF}
|
|
Result := inherited CreateBrowser(TempHandle, Rect(0, 0, 0, 0), aWindowName, aContext, aExtraInfo);
|
|
end;
|
|
|
|
procedure TFMXChromium.InitializeDevToolsWindowInfo;
|
|
var
|
|
TempHandle : TCefWindowHandle;
|
|
begin
|
|
{$IFDEF MACOS}
|
|
TempHandle := nil;
|
|
{$ELSE}
|
|
TempHandle := 0;
|
|
{$ENDIF}
|
|
DefaultInitializeDevToolsWindowInfo(TempHandle, Rect(0, 0, 0, 0), '');
|
|
end;
|
|
|
|
procedure TFMXChromium.ShowDevTools(inspectElementAt: TPoint);
|
|
begin
|
|
if Initialized then
|
|
begin
|
|
InitializeDevToolsWindowInfo;
|
|
inherited ShowDevTools(inspectElementAt, @FDevWindowInfo);
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXChromium.CloseDevTools;
|
|
begin
|
|
inherited CloseDevTools;
|
|
end;
|
|
|
|
function TFMXChromium.GetParentForm : TCustomForm;
|
|
var
|
|
TempComp : TComponent;
|
|
begin
|
|
Result := nil;
|
|
TempComp := Owner;
|
|
|
|
while (TempComp <> nil) do
|
|
if (TempComp is TCustomForm) then
|
|
begin
|
|
Result := TCustomForm(TempComp);
|
|
exit;
|
|
end
|
|
else
|
|
TempComp := TempComp.owner;
|
|
end;
|
|
|
|
function TFMXChromium.GetScreenScale : Single;
|
|
{$IFDEF DELPHI24_UP}{$IFDEF MSWINDOWS}
|
|
var
|
|
TempHandle : TCefWindowHandle;
|
|
{$ENDIF}{$ENDIF}
|
|
begin
|
|
{$IFDEF DELPHI24_UP}{$IFDEF MSWINDOWS}
|
|
TempHandle := GetParentFormHandle;
|
|
|
|
if (TempHandle <> 0) then
|
|
Result := GetWndScale(TempHandle)
|
|
else
|
|
{$ENDIF}{$ENDIF}
|
|
if (GlobalCEFApp <> nil) then
|
|
Result := GlobalCEFApp.DeviceScaleFactor
|
|
else
|
|
Result := 1;
|
|
end;
|
|
|
|
function TFMXChromium.GetParentFormHandle : TCefWindowHandle;
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
TempForm : TCustomForm;
|
|
{$ENDIF}
|
|
begin
|
|
Result := inherited GetParentFormHandle;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
TempForm := GetParentForm;
|
|
|
|
if (TempForm <> nil) then
|
|
Result := FmxHandleToHWND(TempForm.Handle)
|
|
else
|
|
if (Application <> nil) and
|
|
(Application.MainForm <> nil) then
|
|
Result := FmxHandleToHWND(Application.MainForm.Handle);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TFMXChromium.MoveFormTo(const x, y: Integer);
|
|
var
|
|
TempForm : TCustomForm;
|
|
{$IFDEF DELPHI17_UP}
|
|
TempRect : TRect;
|
|
{$ENDIF}
|
|
begin
|
|
TempForm := GetParentForm;
|
|
{$IFDEF DELPHI17_UP}
|
|
if (TempForm <> nil) then
|
|
begin
|
|
TempRect.Left := min(max(x, max(screen.DesktopLeft, 0)), screen.DesktopWidth - TempForm.Width);
|
|
TempRect.Top := min(max(y, max(screen.DesktopTop, 0)), screen.DesktopHeight - TempForm.Height);
|
|
TempRect.Right := TempRect.Left + TempForm.Width - 1;
|
|
TempRect.Bottom := TempRect.Top + TempForm.Height - 1;
|
|
|
|
TempForm.SetBounds(TempRect.Left, TempRect.Top, TempRect.Right - TempRect.Left + 1, TempRect.Bottom - TempRect.Top + 1);
|
|
end;
|
|
{$ELSE}
|
|
TempForm.SetBounds(x, y, TempForm.Width, TempForm.Height);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TFMXChromium.MoveFormBy(const x, y: Integer);
|
|
var
|
|
TempForm : TCustomForm;
|
|
{$IFDEF DELPHI17_UP}
|
|
TempRect : TRect;
|
|
{$ENDIF}
|
|
begin
|
|
TempForm := GetParentForm;
|
|
{$IFDEF DELPHI17_UP}
|
|
if (TempForm <> nil) then
|
|
begin
|
|
TempRect.Left := min(max(TempForm.Left + x, max(screen.DesktopLeft, 0)), screen.DesktopWidth - TempForm.Width);
|
|
TempRect.Top := min(max(TempForm.Top + y, max(screen.DesktopTop, 0)), screen.DesktopHeight - TempForm.Height);
|
|
TempRect.Right := TempRect.Left + TempForm.Width - 1;
|
|
TempRect.Bottom := TempRect.Top + TempForm.Height - 1;
|
|
|
|
TempForm.SetBounds(TempRect.Left, TempRect.Top, TempRect.Right - TempRect.Left + 1, TempRect.Bottom - TempRect.Top + 1);
|
|
end;
|
|
{$ELSE}
|
|
TempForm.SetBounds(TempForm.Left + x, TempForm.Top + y, TempForm.Width, TempForm.Height);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TFMXChromium.ResizeFormWidthTo(const x : Integer);
|
|
var
|
|
TempForm : TCustomForm;
|
|
TempX, TempDeltaX : integer;
|
|
begin
|
|
TempForm := GetParentForm;
|
|
|
|
if (TempForm <> nil) then
|
|
begin
|
|
TempX := max(x, 100);
|
|
TempDeltaX := TempForm.Width - TempForm.ClientWidth;
|
|
TempForm.Width := TempX + TempDeltaX;
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXChromium.ResizeFormHeightTo(const y : Integer);
|
|
var
|
|
TempForm : TCustomForm;
|
|
TempY, TempDeltaY : integer;
|
|
begin
|
|
TempForm := GetParentForm;
|
|
|
|
if (TempForm <> nil) then
|
|
begin
|
|
TempY := max(y, 100);
|
|
TempDeltaY := TempForm.Height - TempForm.ClientHeight;
|
|
TempForm.Height := TempY + TempDeltaY;
|
|
end;
|
|
end;
|
|
|
|
procedure TFMXChromium.SetFormLeftTo(const x : Integer);
|
|
var
|
|
TempForm : TCustomForm;
|
|
begin
|
|
TempForm := GetParentForm;
|
|
|
|
if (TempForm <> nil) then
|
|
{$IFDEF DELPHI17_UP}
|
|
TempForm.Left := min(max(x, max(screen.DesktopLeft, 0)), screen.DesktopWidth - TempForm.Width);
|
|
{$ELSE}
|
|
TempForm.Left := x;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TFMXChromium.SetFormTopTo(const y : Integer);
|
|
var
|
|
TempForm : TCustomForm;
|
|
begin
|
|
TempForm := GetParentForm;
|
|
|
|
if (TempForm <> nil) then
|
|
{$IFDEF DELPHI17_UP}
|
|
TempForm.Top := min(max(y, max(screen.DesktopTop, 0)), screen.DesktopHeight - TempForm.Height);
|
|
{$ELSE}
|
|
TempForm.Top := y;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
function TFMXChromium.SaveAsBitmapStream(var aStream : TStream; const aRect : System.Types.TRect) : boolean;
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
TempDC : HDC;
|
|
TempRect : System.Types.TRect;
|
|
{$ENDIF}
|
|
begin
|
|
Result := False;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
if not(FIsOSR) and (FRenderCompHWND <> 0) and (aStream <> nil) then
|
|
begin
|
|
TempDC := GetDC(FRenderCompHWND);
|
|
|
|
if (TempDC <> 0) then
|
|
try
|
|
TempRect := aRect;
|
|
Result := OffsetRect(TempRect, - TempRect.Left, - TempRect.Top) and
|
|
CopyDCToBitmapStream(TempDC, TempRect, aStream);
|
|
finally
|
|
ReleaseDC(FRenderCompHWND, TempDC);
|
|
end;
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
function TFMXChromium.TakeSnapshot(var aBitmap : TBitmap; const aRect : System.Types.TRect) : boolean;
|
|
var
|
|
TempStream : TMemoryStream;
|
|
begin
|
|
Result := False;
|
|
TempStream := nil;
|
|
|
|
if FIsOSR or (aBitmap = nil) then exit;
|
|
|
|
try
|
|
TempStream := TMemoryStream.Create;
|
|
|
|
if SaveAsBitmapStream(TStream(TempStream), aRect) then
|
|
begin
|
|
aBitmap.LoadFromStream(TempStream);
|
|
Result := True;
|
|
end;
|
|
finally
|
|
FreeAndNil(TempStream);
|
|
end;
|
|
end;
|
|
|
|
end.
|