// ************************************************************************
// ***************************** 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 © 2020 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 uBrowserFrame;
{$I cef.inc}
interface
uses
Winapi.Windows, System.SysUtils, System.Types, System.UITypes, System.Classes,
WinApi.Messages, System.Variants, FMX.Types, {$IFDEF DELPHI17_UP}FMX.Graphics,{$ENDIF}
System.SyncObjs, FMX.Controls, FMX.Forms, FMX.Dialogs, FMX.StdCtrls,
FMX.Edit, FMX.Layouts, FMX.Controls.Presentation, FMX.TabControl,
uCEFChromiumCore, uCEFFMXChromium, uCEFFMXWindowParent, uCEFInterfaces,
uCEFTypes, uCEFConstants, uCEFFMXBufferPanel;
type
TBrowserTitleEvent = procedure(Sender: TObject; const aTitle : string) of object;
TBrowserFrame = class(TFrame)
FMXChromium1: TFMXChromium;
StatusBar: TStatusBar;
StatusLbl: TLabel;
AddressLay: TLayout;
GoBtn: TSpeedButton;
NavButtonLay: TLayout;
BackBtn: TSpeedButton;
ForwardBtn: TSpeedButton;
ReloadBtn: TSpeedButton;
StopBtn: TSpeedButton;
URLEdt: TEdit;
FMXBufferPanel1: TFMXBufferPanel;
procedure BackBtnClick(Sender: TObject);
procedure ForwardBtnClick(Sender: TObject);
procedure ReloadBtnClick(Sender: TObject);
procedure StopBtnClick(Sender: TObject);
procedure GoBtnClick(Sender: TObject);
procedure FMXBufferPanel1Enter(Sender: TObject);
procedure FMXBufferPanel1Exit(Sender: TObject);
procedure FMXBufferPanel1Resize(Sender: TObject);
procedure FMXBufferPanel1Click(Sender: TObject);
procedure FMXBufferPanel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
procedure FMXBufferPanel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
procedure FMXBufferPanel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Single);
procedure FMXBufferPanel1MouseLeave(Sender: TObject);
procedure FMXBufferPanel1MouseWheel(Sender: TObject; Shift: TShiftState; WheelDelta: Integer; var Handled: Boolean);
procedure FMXBufferPanel1KeyDown(Sender: TObject; var Key: Word; var KeyChar: Char; Shift: TShiftState);
procedure FMXBufferPanel1DialogKey(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure FMXChromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
procedure FMXChromium1BeforeClose(Sender: TObject; const browser: ICefBrowser);
procedure FMXChromium1BeforePopup(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const targetUrl, targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; const popupFeatures: TCefPopupFeatures; var windowInfo: TCefWindowInfo; var client: ICefClient; var settings: TCefBrowserSettings; var extra_info: ICefDictionaryValue; var noJavascriptAccess, Result: Boolean);
procedure FMXChromium1CursorChange(Sender: TObject; const browser: ICefBrowser; cursor: HICON; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo);
procedure FMXChromium1GetScreenInfo(Sender: TObject; const browser: ICefBrowser; var screenInfo: TCefScreenInfo; out Result: Boolean);
procedure FMXChromium1GetScreenPoint(Sender: TObject; const browser: ICefBrowser; viewX, viewY: Integer; var screenX, screenY: Integer; out Result: Boolean);
procedure FMXChromium1GetViewRect(Sender: TObject; const browser: ICefBrowser; var rect: TCefRect);
procedure FMXChromium1Paint(Sender: TObject; const browser: ICefBrowser; type_: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; width, height: Integer);
procedure FMXChromium1PopupShow(Sender: TObject; const browser: ICefBrowser; show: Boolean);
procedure FMXChromium1PopupSize(Sender: TObject; const browser: ICefBrowser; const rect: PCefRect);
procedure FMXChromium1Tooltip(Sender: TObject; const browser: ICefBrowser; var text: ustring; out Result: Boolean);
procedure FMXChromium1TitleChange(Sender: TObject; const browser: ICefBrowser; const title: ustring);
procedure FMXChromium1OpenUrlFromTab(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; out Result: Boolean);
procedure FMXChromium1AddressChange(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const url: ustring);
procedure FMXChromium1LoadError(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; errorCode: Integer; const errorText, failedUrl: ustring);
procedure FMXChromium1LoadingStateChange(Sender: TObject; const browser: ICefBrowser; isLoading, canGoBack, canGoForward: Boolean);
procedure FMXChromium1StatusMessage(Sender: TObject; const browser: ICefBrowser; const value: ustring);
protected
FPopUpBitmap : TBitmap;
FPopUpRect : TRect;
FShowPopUp : boolean;
FResizing : boolean;
FPendingResize : boolean;
FResizeCS : TCriticalSection;
FAtLeastWin8 : boolean;
FClosing : boolean; // Indicates that this frame is destroying the browser
FHomepage : string; // Used to set the TChromium.DefaultURL property
FOnBrowserDestroyed : TNotifyEvent;
FOnBrowserNeedsResize : TNotifyEvent;
FOnBrowserTitleChange : TBrowserTitleEvent;
FLastClickCount : integer;
FLastClickTime : integer;
FLastClickPoint : TPointF;
FLastClickButton : TMouseButton;
function GetParentForm : TCustomForm;
function GetParentTab : TTabItem;
function getModifiers(Shift: TShiftState): TCefEventFlags;
function GetButton(Button: TMouseButton): TCefMouseButtonType;
function GetMousePosition(var aPoint : TPointF) : boolean;
procedure InitializeLastClick;
function CancelPreviousClick(const x, y : single; var aCurrentTime : integer) : boolean;
{$IFDEF MSWINDOWS}
function PostFormMessage(aMsg : cardinal; aWParam : WPARAM = 0; aLParam : LPARAM = 0) : boolean;
function ArePointerEventsSupported : boolean;
function HandlePenEvent(const aID : uint32; aMsg : cardinal) : boolean;
function HandleTouchEvent(const aID : uint32; aMsg : cardinal) : boolean; overload;
function HandlePointerEvent(const aMessage : TMsg) : boolean;
{$ENDIF}
public
constructor Create(AOwner : TComponent); override;
destructor Destroy; override;
procedure NotifyMoveOrResizeStarted;
procedure SendCaptureLostEvent;
{$IFDEF MSWINDOWS}
procedure HandleSYSCHAR(const aMessage : TMsg);
procedure HandleSYSKEYDOWN(const aMessage : TMsg);
procedure HandleSYSKEYUP(const aMessage : TMsg);
procedure HandleKEYDOWN(const aMessage : TMsg);
procedure HandleKEYUP(const aMessage : TMsg);
function HandlePOINTER(const aMessage : TMsg) : boolean;
{$ENDIF}
procedure CreateBrowser;
procedure CloseBrowser;
procedure ResizeBrowser;
procedure FocusBrowser;
property ParentForm : TCustomForm read GetParentForm;
property ParentTab : TTabItem read GetParentTab;
property Closing : boolean read FClosing;
property Homepage : string read FHomepage write FHomepage;
property OnBrowserDestroyed : TNotifyEvent read FOnBrowserDestroyed write FOnBrowserDestroyed;
property OnBrowserTitleChange : TBrowserTitleEvent read FOnBrowserTitleChange write FOnBrowserTitleChange;
property OnBrowserNeedsResize : TNotifyEvent read FOnBrowserNeedsResize write FOnBrowserNeedsResize;
end;
implementation
{$R *.fmx}
uses
FMX.Platform, {$IFDEF MSWINDOWS}FMX.Platform.Win,{$ENDIF} System.Math,
uCEFMiscFunctions, uCEFApplication, uBrowserTab, uMainForm;
procedure TBrowserFrame.BackBtnClick(Sender: TObject);
begin
FMXChromium1.GoBack;
end;
constructor TBrowserFrame.Create(AOwner : TComponent);
var
TempMajorVer, TempMinorVer : DWORD;
begin
inherited Create(AOwner);
FClosing := False;
FHomepage := '';
FOnBrowserDestroyed := nil;
FOnBrowserTitleChange := nil;
FPopUpBitmap := nil;
FPopUpRect := rect(0, 0, 0, 0);
FShowPopUp := False;
FResizing := False;
FPendingResize := False;
FClosing := False;
FResizeCS := TCriticalSection.Create;
FAtLeastWin8 := GetWindowsMajorMinorVersion(TempMajorVer, TempMinorVer) and
((TempMajorVer > 6) or
((TempMajorVer = 6) and (TempMinorVer >= 2)));
InitializeLastClick;
end;
destructor TBrowserFrame.Destroy;
begin
FResizeCS.Free;
if (FPopUpBitmap <> nil) then FreeAndNil(FPopUpBitmap);
inherited Destroy;
end;
procedure TBrowserFrame.ReloadBtnClick(Sender: TObject);
begin
FMXChromium1.Reload;
end;
procedure TBrowserFrame.FocusBrowser;
begin
FMXBufferPanel1.SetFocus;
end;
procedure TBrowserFrame.ResizeBrowser;
begin
try
if (FResizeCS <> nil) then
begin
FResizeCS.Acquire;
if FResizing then
FPendingResize := True
else
if FMXBufferPanel1.BufferIsResized then
FMXChromium1.Invalidate(PET_VIEW)
else
begin
FResizing := True;
FMXChromium1.WasResized;
end;
end;
finally
if (FResizeCS <> nil) then FResizeCS.Release;
end;
end;
procedure TBrowserFrame.NotifyMoveOrResizeStarted;
begin
FMXChromium1.NotifyMoveOrResizeStarted;
end;
procedure TBrowserFrame.SendCaptureLostEvent;
begin
FMXChromium1.SendCaptureLostEvent;
end;
procedure TBrowserFrame.StopBtnClick(Sender: TObject);
begin
FMXChromium1.StopLoad;
end;
procedure TBrowserFrame.FMXBufferPanel1Click(Sender: TObject);
begin
FocusBrowser;
end;
procedure TBrowserFrame.FMXBufferPanel1DialogKey(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if (Key = vkTab) then Key := 0;
end;
procedure TBrowserFrame.FMXBufferPanel1Enter(Sender: TObject);
begin
FMXChromium1.SendFocusEvent(True);
end;
procedure TBrowserFrame.FMXBufferPanel1Exit(Sender: TObject);
begin
FMXChromium1.SendFocusEvent(False);
end;
procedure TBrowserFrame.FMXBufferPanel1KeyDown(Sender: TObject; var Key: Word;
var KeyChar: Char; Shift: TShiftState);
var
TempKeyEvent : TCefKeyEvent;
begin
if not(FMXBufferPanel1.IsFocused) then exit;
if (Key = 0) and (KeyChar <> #0) then
begin
TempKeyEvent.kind := KEYEVENT_CHAR;
TempKeyEvent.modifiers := getModifiers(Shift);
TempKeyEvent.windows_key_code := ord(KeyChar);
TempKeyEvent.native_key_code := 0;
TempKeyEvent.is_system_key := ord(False);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end
else
if (Key <> 0) and (KeyChar = #0) and
(Key in [vkLeft, vkRight, vkUp, vkDown]) then
Key := 0;
end;
procedure TBrowserFrame.FMXBufferPanel1MouseDown(Sender: TObject;
Button: TMouseButton; Shift: TShiftState; X, Y: Single);
var
TempEvent : TCefMouseEvent;
TempTime : integer;
begin
if not(ssTouch in Shift) then
begin
FocusBrowser;
if not(CancelPreviousClick(x, y, TempTime)) and (Button = FLastClickButton) then
inc(FLastClickCount)
else
begin
FLastClickPoint.x := x;
FLastClickPoint.y := y;
FLastClickCount := 1;
end;
FLastClickTime := TempTime;
FLastClickButton := Button;
TempEvent.x := round(X);
TempEvent.y := round(Y);
TempEvent.modifiers := getModifiers(Shift);
FMXChromium1.SendMouseClickEvent(@TempEvent, GetButton(Button), False, FLastClickCount);
end;
end;
procedure TBrowserFrame.FMXBufferPanel1MouseLeave(Sender: TObject);
var
TempEvent : TCefMouseEvent;
TempPoint : TPoint;
TempPointF : TPointF;
TempTime : integer;
begin
if GetMousePosition(TempPointF) then
begin
TempPoint.x := round(TempPointF.x);
TempPoint.y := round(TempPointF.y);
TempPoint := FMXBufferPanel1.ScreenToclient(TempPoint);
if CancelPreviousClick(TempPoint.x, TempPoint.y, TempTime) then InitializeLastClick;
TempEvent.x := TempPoint.x;
TempEvent.y := TempPoint.y;
TempEvent.modifiers := GetCefMouseModifiers;
FMXChromium1.SendMouseMoveEvent(@TempEvent, True);
end;
end;
procedure TBrowserFrame.FMXBufferPanel1MouseMove(Sender: TObject;
Shift: TShiftState; X, Y: Single);
var
TempEvent : TCefMouseEvent;
TempTime : integer;
begin
if not(ssTouch in Shift) then
begin
if CancelPreviousClick(x, y, TempTime) then InitializeLastClick;
TempEvent.x := round(X);
TempEvent.y := round(Y);
TempEvent.modifiers := getModifiers(Shift);
FMXChromium1.SendMouseMoveEvent(@TempEvent, False);
end;
end;
procedure TBrowserFrame.FMXBufferPanel1MouseUp(Sender: TObject;
Button: TMouseButton; Shift: TShiftState; X, Y: Single);
var
TempEvent : TCefMouseEvent;
begin
if not(ssTouch in Shift) then
begin
TempEvent.x := round(X);
TempEvent.y := round(Y);
TempEvent.modifiers := getModifiers(Shift);
FMXChromium1.SendMouseClickEvent(@TempEvent, GetButton(Button), True, FLastClickCount);
end;
end;
procedure TBrowserFrame.FMXBufferPanel1MouseWheel(Sender: TObject;
Shift: TShiftState; WheelDelta: Integer; var Handled: Boolean);
var
TempEvent : TCefMouseEvent;
TempPoint : TPoint;
TempPointF : TPointF;
begin
if FMXBufferPanel1.IsFocused and GetMousePosition(TempPointF) then
begin
TempPoint.x := round(TempPointF.x);
TempPoint.y := round(TempPointF.y);
TempPoint := FMXBufferPanel1.ScreenToClient(TempPoint);
TempEvent.x := TempPoint.x;
TempEvent.y := TempPoint.y;
TempEvent.modifiers := getModifiers(Shift);
FMXChromium1.SendMouseWheelEvent(@TempEvent, 0, WheelDelta);
end;
end;
procedure TBrowserFrame.FMXBufferPanel1Resize(Sender: TObject);
begin
ResizeBrowser;
end;
procedure TBrowserFrame.FMXChromium1AddressChange(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame; const url: ustring);
begin
URLEdt.Text := url;
end;
procedure TBrowserFrame.FMXChromium1AfterCreated(Sender: TObject;
const browser: ICefBrowser);
begin
AddressLay.Enabled := True;
FocusBrowser;
end;
procedure TBrowserFrame.FMXChromium1BeforeClose(Sender: TObject;
const browser: ICefBrowser);
begin
if assigned(FOnBrowserDestroyed) then FOnBrowserDestroyed(Sender);
end;
procedure TBrowserFrame.FMXChromium1BeforePopup(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame; const targetUrl,
targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition;
userGesture: Boolean; const popupFeatures: TCefPopupFeatures;
var windowInfo: TCefWindowInfo; var client: ICefClient;
var settings: TCefBrowserSettings; var extra_info: ICefDictionaryValue;
var noJavascriptAccess, Result: Boolean);
begin
// For simplicity, this demo blocks all popup windows and new tabs
Result := (targetDisposition in [WOD_NEW_FOREGROUND_TAB, WOD_NEW_BACKGROUND_TAB, WOD_NEW_POPUP, WOD_NEW_WINDOW]);
end;
procedure TBrowserFrame.FMXChromium1CursorChange(Sender: TObject;
const browser: ICefBrowser; cursor: HICON; cursorType: TCefCursorType;
const customCursorInfo: PCefCursorInfo);
begin
FMXBufferPanel1.Cursor := CefCursorToWindowsCursor(cursorType);
end;
procedure TBrowserFrame.FMXChromium1GetScreenInfo(Sender: TObject;
const browser: ICefBrowser; var screenInfo: TCefScreenInfo;
out Result: Boolean);
var
TempRect : TCEFRect;
begin
TempRect.x := 0;
TempRect.y := 0;
TempRect.width := round(FMXBufferPanel1.Width);
TempRect.height := round(FMXBufferPanel1.Height);
screenInfo.device_scale_factor := FMXBufferPanel1.ScreenScale;
screenInfo.depth := 0;
screenInfo.depth_per_component := 0;
screenInfo.is_monochrome := Ord(False);
screenInfo.rect := TempRect;
screenInfo.available_rect := TempRect;
Result := True;
end;
procedure TBrowserFrame.FMXChromium1GetScreenPoint(Sender: TObject;
const browser: ICefBrowser; viewX, viewY: Integer; var screenX,
screenY: Integer; out Result: Boolean);
var
TempScreenPt, TempViewPt : TPoint;
begin
// TFMXBufferPanel.ClientToScreen applies the scale factor. No need to call LogicalToDevice to set TempViewPt.
TempViewPt.x := viewX;
TempViewPt.y := viewY;
TempScreenPt := FMXBufferPanel1.ClientToScreen(TempViewPt);
screenX := TempScreenPt.x;
screenY := TempScreenPt.y;
Result := True;
end;
procedure TBrowserFrame.FMXChromium1GetViewRect(Sender: TObject;
const browser: ICefBrowser; var rect: TCefRect);
begin
rect.x := 0;
rect.y := 0;
rect.width := round(FMXBufferPanel1.Width);
rect.height := round(FMXBufferPanel1.Height);
end;
procedure TBrowserFrame.FMXChromium1LoadError(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame; errorCode: Integer;
const errorText, failedUrl: ustring);
var
TempString : string;
begin
if (errorCode = ERR_ABORTED) then exit;
TempString := '<html><body bgcolor="white">' +
'<h2>Failed to load URL ' + failedUrl +
' with error ' + errorText +
' (' + inttostr(errorCode) + ').</h2></body></html>';
FMXChromium1.LoadString(TempString, frame);
end;
procedure TBrowserFrame.FMXChromium1LoadingStateChange(Sender: TObject;
const browser: ICefBrowser; isLoading, canGoBack, canGoForward: Boolean);
begin
BackBtn.Enabled := canGoBack;
ForwardBtn.Enabled := canGoForward;
if isLoading then
begin
ReloadBtn.Enabled := False;
StopBtn.Enabled := True;
end
else
begin
ReloadBtn.Enabled := True;
StopBtn.Enabled := False;
end;
end;
procedure TBrowserFrame.FMXChromium1OpenUrlFromTab(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring;
targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean;
out Result: Boolean);
begin
// For simplicity, this demo blocks all popup windows and new tabs
Result := (targetDisposition in [WOD_NEW_FOREGROUND_TAB, WOD_NEW_BACKGROUND_TAB, WOD_NEW_POPUP, WOD_NEW_WINDOW]);
end;
procedure TBrowserFrame.FMXChromium1Paint(Sender: TObject;
const browser: ICefBrowser; type_: TCefPaintElementType;
dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray;
const buffer: Pointer; width, height: Integer);
var
src, dst: PByte;
i, j, TempLineSize, TempSrcOffset, TempDstOffset, SrcStride, TempWidth, TempHeight : Integer;
n : NativeUInt;
{$IFNDEF DELPHI17_UP}
TempScanlineSize, DstStride : integer;
{$ENDIF}
TempBufferBits : Pointer;
TempForcedResize : boolean;
TempBitmapData : TBitmapData;
TempBitmap : TBitmap;
TempSrcRect, TempDstRect : TRectF;
begin
try
FResizeCS.Acquire;
TempForcedResize := False;
if FMXBufferPanel1.BeginBufferDraw then
try
if (type_ = PET_POPUP) then
begin
if (FPopUpBitmap = nil) or
(width <> FPopUpBitmap.Width) or
(height <> FPopUpBitmap.Height) then
begin
if (FPopUpBitmap <> nil) then FPopUpBitmap.Free;
FPopUpBitmap := TBitmap.Create(width, height);
{$IFDEF DELPHI17_UP}
FPopUpBitmap.BitmapScale := FMXBufferPanel1.ScreenScale;
{$ENDIF}
end;
TempWidth := FPopUpBitmap.Width;
TempHeight := FPopUpBitmap.Height;
{$IFNDEF DELPHI17_UP}
TempScanlineSize := FPopUpBitmap.BytesPerLine;
{$ENDIF}
TempBitmap := FPopUpBitmap;
end
else
begin
TempForcedResize := FMXBufferPanel1.UpdateBufferDimensions(Width, Height) or not(FMXBufferPanel1.BufferIsResized(False));
TempWidth := FMXBufferPanel1.BufferWidth;
TempHeight := FMXBufferPanel1.BufferHeight;
{$IFNDEF DELPHI17_UP}
TempScanlineSize := FMXBufferPanel1.ScanlineSize;
{$ENDIF}
TempBitmap := FMXBufferPanel1.Buffer;
end;
if (TempBitmap <> nil) {$IFDEF DELPHI17_UP}and TempBitmap.Map(TMapAccess.ReadWrite, TempBitmapData){$ENDIF} then
begin
try
{$IFNDEF DELPHI17_UP}
TempBufferBits := TempBitmapData.StartLine;
DstStride := TempScanlineSize;
{$ENDIF}
SrcStride := Width * SizeOf(TRGBQuad);
n := 0;
while (n < dirtyRectsCount) do
begin
if (dirtyRects[n].x >= 0) and (dirtyRects[n].y >= 0) then
begin
TempLineSize := min(dirtyRects[n].width, TempWidth - dirtyRects[n].x) * SizeOf(TRGBQuad);
if (TempLineSize > 0) then
begin
TempSrcOffset := ((dirtyRects[n].y * Width) + dirtyRects[n].x) * SizeOf(TRGBQuad);
{$IFDEF DELPHI17_UP}
TempDstOffset := (dirtyRects[n].x * SizeOf(TRGBQuad));
{$ELSE}
TempDstOffset := (dirtyRects[n].y * TempScanlineSize) + (dirtyRects[n].x * SizeOf(TRGBQuad));
{$ENDIF}
src := @PByte(buffer)[TempSrcOffset];
{$IFNDEF DELPHI17_UP}
dst := @PByte(TempBufferBits)[TempDstOffset];
{$ENDIF}
i := 0;
j := min(dirtyRects[n].height, TempHeight - dirtyRects[n].y);
while (i < j) do
begin
{$IFDEF DELPHI17_UP}
TempBufferBits := TempBitmapData.GetScanline(dirtyRects[n].y + i);
dst := @PByte(TempBufferBits)[TempDstOffset];
{$ENDIF}
System.Move(src^, dst^, TempLineSize);
{$IFNDEF DELPHI17_UP}
inc(dst, DstStride);
{$ENDIF}
inc(src, SrcStride);
inc(i);
end;
end;
end;
inc(n);
end;
FMXBufferPanel1.InvalidatePanel;
finally
{$IFDEF DELPHI17_UP}
TempBitmap.Unmap(TempBitmapData);
{$ENDIF}
end;
if FShowPopup and (FPopUpBitmap <> nil) then
begin
TempSrcRect := RectF(0, 0,
min(FPopUpRect.Width, FPopUpBitmap.Width),
min(FPopUpRect.Height, FPopUpBitmap.Height));
TempDstRect.Left := FPopUpRect.Left / GlobalCEFApp.DeviceScaleFactor;
TempDstRect.Top := FPopUpRect.Top / GlobalCEFApp.DeviceScaleFactor;
TempDstRect.Right := TempDstRect.Left + (TempSrcRect.Width / GlobalCEFApp.DeviceScaleFactor);
TempDstRect.Bottom := TempDstRect.Top + (TempSrcRect.Height / GlobalCEFApp.DeviceScaleFactor);
FMXBufferPanel1.BufferDraw(FPopUpBitmap, TempSrcRect, TempDstRect);
end;
end;
if (type_ = PET_VIEW) then
begin
if (TempForcedResize or FPendingResize) and
assigned(FOnBrowserNeedsResize) then
FOnBrowserNeedsResize(self);
FResizing := False;
FPendingResize := False;
end;
finally
FMXBufferPanel1.EndBufferDraw;
end;
finally
FResizeCS.Release;
end;
end;
procedure TBrowserFrame.FMXChromium1PopupShow(Sender: TObject;
const browser: ICefBrowser; show: Boolean);
begin
if show then
FShowPopUp := True
else
begin
FShowPopUp := False;
FPopUpRect := rect(0, 0, 0, 0);
FMXChromium1.Invalidate(PET_VIEW);
end;
end;
procedure TBrowserFrame.FMXChromium1PopupSize(Sender: TObject;
const browser: ICefBrowser; const rect: PCefRect);
begin
if (GlobalCEFApp <> nil) then
begin
LogicalToDevice(rect^, GlobalCEFApp.DeviceScaleFactor);
FPopUpRect.Left := rect.x;
FPopUpRect.Top := rect.y;
FPopUpRect.Right := rect.x + rect.width - 1;
FPopUpRect.Bottom := rect.y + rect.height - 1;
end;
end;
procedure TBrowserFrame.FMXChromium1StatusMessage(Sender: TObject;
const browser: ICefBrowser; const value: ustring);
begin
StatusLbl.Text := value;
end;
procedure TBrowserFrame.FMXChromium1TitleChange(Sender: TObject;
const browser: ICefBrowser; const title: ustring);
begin
if assigned(FOnBrowserTitleChange) then FOnBrowserTitleChange(Sender, title);
end;
procedure TBrowserFrame.FMXChromium1Tooltip(Sender: TObject;
const browser: ICefBrowser; var text: ustring; out Result: Boolean);
begin
FMXBufferPanel1.Hint := text;
FMXBufferPanel1.ShowHint := (length(text) > 0);
Result := True;
end;
procedure TBrowserFrame.ForwardBtnClick(Sender: TObject);
begin
FMXChromium1.GoForward;
end;
function TBrowserFrame.GetParentForm : TCustomForm;
var
TempParent : TTabItem;
begin
Result := nil;
TempParent := ParentTab;
if (TempParent <> nil) and (TempParent is TBrowserTab) then
Result := TBrowserTab(TempParent).ParentForm;
end;
function TBrowserFrame.GetParentTab : TTabItem;
var
TempParent : TFMXObject;
begin
Result := nil;
TempParent := Parent;
while (TempParent <> nil) and not(TempParent is TTabItem) do
TempParent := TempParent.Parent;
if (TempParent <> nil) and (TempParent is TTabItem) then
Result := TTabItem(TempParent);
end;
procedure TBrowserFrame.GoBtnClick(Sender: TObject);
begin
FMXChromium1.LoadURL(URLEdt.Text);
end;
procedure TBrowserFrame.CreateBrowser;
begin
if not(FMXChromium1.Initialized) then
begin
FMXChromium1.DefaultUrl := FHomepage;
FMXChromium1.CreateBrowser;
end;
end;
procedure TBrowserFrame.CloseBrowser;
begin
if not(FClosing) then
begin
FClosing := True;
AddressLay.Enabled := False;
FMXChromium1.CloseBrowser(True);
end;
end;
function TBrowserFrame.getModifiers(Shift: TShiftState): TCefEventFlags;
begin
Result := EVENTFLAG_NONE;
if (ssShift in Shift) then Result := Result or EVENTFLAG_SHIFT_DOWN;
if (ssAlt in Shift) then Result := Result or EVENTFLAG_ALT_DOWN;
if (ssCtrl in Shift) then Result := Result or EVENTFLAG_CONTROL_DOWN;
if (ssLeft in Shift) then Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
if (ssRight in Shift) then Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
if (ssMiddle in Shift) then Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
end;
function TBrowserFrame.GetButton(Button: TMouseButton): TCefMouseButtonType;
begin
case Button of
TMouseButton.mbRight : Result := MBT_RIGHT;
TMouseButton.mbMiddle : Result := MBT_MIDDLE;
else Result := MBT_LEFT;
end;
end;
function TBrowserFrame.GetMousePosition(var aPoint : TPointF) : boolean;
var
TempForm : TCustomForm;
begin
TempForm := ParentForm;
Result := (TempForm <> nil) and
(TempForm is TMainForm) and
TMainForm(TempForm).GetMousePosition(aPoint);
end;
procedure TBrowserFrame.InitializeLastClick;
begin
FLastClickCount := 1;
FLastClickTime := 0;
FLastClickPoint.x := 0;
FLastClickPoint.y := 0;
FLastClickButton := TMouseButton.mbLeft;
end;
function TBrowserFrame.CancelPreviousClick(const x, y : single; var aCurrentTime : integer) : boolean;
begin
{$IFDEF MSWINDOWS}
aCurrentTime := GetMessageTime;
Result := (abs(FLastClickPoint.x - x) > (GetSystemMetrics(SM_CXDOUBLECLK) div 2)) or
(abs(FLastClickPoint.y - y) > (GetSystemMetrics(SM_CYDOUBLECLK) div 2)) or
(cardinal(aCurrentTime - FLastClickTime) > GetDoubleClickTime);
{$ELSE}
aCurrentTime := 0;
Result := False;
{$ENDIF}
end;
{$IFDEF MSWINDOWS}
function TBrowserFrame.PostFormMessage(aMsg : cardinal; aWParam : WPARAM; aLParam : LPARAM) : boolean;
var
TempTab : TTabItem;
begin
TempTab := ParentTab;
Result := (TempTab <> nil) and
(TempTab is TBrowserTab) and
TBrowserTab(TempTab).PostFormMessage(aMsg, aWParam, aLParam);
end;
function TBrowserFrame.ArePointerEventsSupported : boolean;
begin
Result := FAtLeastWin8 and
(@GetPointerType <> nil) and
(@GetPointerTouchInfo <> nil) and
(@GetPointerPenInfo <> nil);
end;
function TBrowserFrame.HandlePointerEvent(const aMessage : TMsg) : boolean;
const
PT_TOUCH = 2;
PT_PEN = 3;
var
TempID : uint32;
TempType : POINTER_INPUT_TYPE;
begin
Result := False;
TempID := LoWord(aMessage.wParam);
if GetPointerType(TempID, @TempType) then
case TempType of
PT_PEN : Result := HandlePenEvent(TempID, aMessage.message);
PT_TOUCH : Result := HandleTouchEvent(TempID, aMessage.message);
end;
end;
function TBrowserFrame.HandlePenEvent(const aID : uint32; aMsg : cardinal) : boolean;
var
TempPenInfo : POINTER_PEN_INFO;
TempTouchEvent : TCefTouchEvent;
TempPoint : TPoint;
begin
Result := False;
if not(GetPointerPenInfo(aID, @TempPenInfo)) then exit;
TempTouchEvent.id := aID;
TempTouchEvent.x := 0;
TempTouchEvent.y := 0;
TempTouchEvent.radius_x := 0;
TempTouchEvent.radius_y := 0;
TempTouchEvent.type_ := CEF_TET_RELEASED;
TempTouchEvent.modifiers := EVENTFLAG_NONE;
if ((TempPenInfo.penFlags and PEN_FLAG_ERASER) <> 0) then
TempTouchEvent.pointer_type := CEF_POINTER_TYPE_ERASER
else
TempTouchEvent.pointer_type := CEF_POINTER_TYPE_PEN;
if ((TempPenInfo.penMask and PEN_MASK_PRESSURE) <> 0) then
TempTouchEvent.pressure := TempPenInfo.pressure / 1024
else
TempTouchEvent.pressure := 0;
if ((TempPenInfo.penMask and PEN_MASK_ROTATION) <> 0) then
TempTouchEvent.rotation_angle := TempPenInfo.rotation / 180 * Pi
else
TempTouchEvent.rotation_angle := 0;
Result := True;
case aMsg of
WM_POINTERDOWN :
TempTouchEvent.type_ := CEF_TET_PRESSED;
WM_POINTERUPDATE :
if ((TempPenInfo.pointerInfo.pointerFlags and POINTER_FLAG_INCONTACT) <> 0) then
TempTouchEvent.type_ := CEF_TET_MOVED
else
exit; // Ignore hover events.
WM_POINTERUP :
TempTouchEvent.type_ := CEF_TET_RELEASED;
end;
if ((TempPenInfo.pointerInfo.pointerFlags and POINTER_FLAG_CANCELED) <> 0) then
TempTouchEvent.type_ := CEF_TET_CANCELLED;
TempPoint := FMXBufferPanel1.ScreenToClient(TempPenInfo.pointerInfo.ptPixelLocation);
// TFMXBufferPanel.ScreenToClient applies the scale factor. No need to call DeviceToLogical to set TempTouchEvent.
TempTouchEvent.x := TempPoint.x;
TempTouchEvent.y := TempPoint.y;
FMXChromium1.SendTouchEvent(@TempTouchEvent);
end;
function TBrowserFrame.HandleTouchEvent(const aID : uint32; aMsg : cardinal) : boolean;
var
TempTouchInfo : POINTER_TOUCH_INFO;
TempTouchEvent : TCefTouchEvent;
TempPoint : TPoint;
begin
Result := False;
if not(GetPointerTouchInfo(aID, @TempTouchInfo)) then exit;
TempTouchEvent.id := aID;
TempTouchEvent.x := 0;
TempTouchEvent.y := 0;
TempTouchEvent.radius_x := 0;
TempTouchEvent.radius_y := 0;
TempTouchEvent.rotation_angle := 0;
TempTouchEvent.pressure := 0;
TempTouchEvent.type_ := CEF_TET_RELEASED;
TempTouchEvent.modifiers := EVENTFLAG_NONE;
TempTouchEvent.pointer_type := CEF_POINTER_TYPE_TOUCH;
Result := True;
case aMsg of
WM_POINTERDOWN :
TempTouchEvent.type_ := CEF_TET_PRESSED;
WM_POINTERUPDATE :
if ((TempTouchInfo.pointerInfo.pointerFlags and POINTER_FLAG_INCONTACT) <> 0) then
TempTouchEvent.type_ := CEF_TET_MOVED
else
exit; // Ignore hover events.
WM_POINTERUP :
TempTouchEvent.type_ := CEF_TET_RELEASED;
end;
if ((TempTouchInfo.pointerInfo.pointerFlags and POINTER_FLAG_CANCELED) <> 0) then
TempTouchEvent.type_ := CEF_TET_CANCELLED;
TempPoint := FMXBufferPanel1.ScreenToClient(TempTouchInfo.pointerInfo.ptPixelLocation);
// TFMXBufferPanel.ScreenToClient applies the scale factor. No need to call DeviceToLogical to set TempTouchEvent.
TempTouchEvent.x := TempPoint.x;
TempTouchEvent.y := TempPoint.y;
FMXChromium1.SendTouchEvent(@TempTouchEvent);
end;
procedure TBrowserFrame.HandleSYSCHAR(const aMessage : TMsg);
var
TempKeyEvent : TCefKeyEvent;
begin
if FMXBufferPanel1.IsFocused and (aMessage.wParam in [VK_BACK..VK_HELP]) then
begin
TempKeyEvent.kind := KEYEVENT_CHAR;
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
TempKeyEvent.native_key_code := integer(aMessage.lParam);
TempKeyEvent.is_system_key := ord(True);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end;
end;
procedure TBrowserFrame.HandleSYSKEYDOWN(const aMessage : TMsg);
var
TempKeyEvent : TCefKeyEvent;
begin
if FMXBufferPanel1.IsFocused and (aMessage.wParam in [VK_BACK..VK_HELP]) then
begin
TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
TempKeyEvent.native_key_code := integer(aMessage.lParam);
TempKeyEvent.is_system_key := ord(True);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end;
end;
procedure TBrowserFrame.HandleSYSKEYUP(const aMessage : TMsg);
var
TempKeyEvent : TCefKeyEvent;
begin
if FMXBufferPanel1.IsFocused and (aMessage.wParam in [VK_BACK..VK_HELP]) then
begin
TempKeyEvent.kind := KEYEVENT_KEYUP;
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
TempKeyEvent.native_key_code := integer(aMessage.lParam);
TempKeyEvent.is_system_key := ord(True);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end;
end;
procedure TBrowserFrame.HandleKEYDOWN(const aMessage : TMsg);
var
TempKeyEvent : TCefKeyEvent;
begin
if FMXBufferPanel1.IsFocused then
begin
TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
TempKeyEvent.native_key_code := integer(aMessage.lParam);
TempKeyEvent.is_system_key := ord(False);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end;
end;
procedure TBrowserFrame.HandleKEYUP(const aMessage : TMsg);
var
TempKeyEvent : TCefKeyEvent;
begin
if FMXBufferPanel1.IsFocused then
begin
if (aMessage.wParam = vkReturn) then
begin
TempKeyEvent.kind := KEYEVENT_CHAR;
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
TempKeyEvent.native_key_code := integer(aMessage.lParam);
TempKeyEvent.is_system_key := ord(False);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end;
TempKeyEvent.kind := KEYEVENT_KEYUP;
TempKeyEvent.modifiers := GetCefKeyboardModifiers(aMessage.wParam, aMessage.lParam);
TempKeyEvent.windows_key_code := integer(aMessage.wParam);
TempKeyEvent.native_key_code := integer(aMessage.lParam);
TempKeyEvent.is_system_key := ord(False);
TempKeyEvent.character := #0;
TempKeyEvent.unmodified_character := #0;
TempKeyEvent.focus_on_editable_field := ord(False);
FMXChromium1.SendKeyEvent(@TempKeyEvent);
end;
end;
function TBrowserFrame.HandlePOINTER(const aMessage : TMsg) : boolean;
begin
Result := FMXBufferPanel1.IsFocused and
(GlobalCEFApp <> nil) and
ArePointerEventsSupported and
HandlePointerEvent(aMessage);
end;
{$ENDIF}
end.