mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-16 16:25:57 +01:00
885 lines
31 KiB
ObjectPascal
885 lines
31 KiB
ObjectPascal
// ************************************************************************
|
|
// ***************************** CEF4Delphi *******************************
|
|
// ************************************************************************
|
|
//
|
|
// CEF4Delphi is based on DCEF3 which uses CEF3 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 © 2019 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 uKioskOSRBrowser;
|
|
|
|
{$I cef.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
{$IFDEF DELPHI16_UP}
|
|
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes,
|
|
System.SyncObjs, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls,
|
|
Vcl.ExtCtrls, Vcl.AppEvnts, Vcl.Touch.Keyboard,
|
|
{$ELSE}
|
|
Windows, Messages, SysUtils, Variants, Classes, SyncObjs,
|
|
Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, AppEvnts, Keyboard,
|
|
{$ENDIF}
|
|
uCEFChromium, uCEFTypes, uCEFInterfaces, uCEFConstants, uBufferPanel;
|
|
|
|
const
|
|
HOMEPAGE_URL = 'https://www.google.com';
|
|
|
|
SHOWKEYBOARD_PROCMSG = 'showkeyboard';
|
|
HIDEKEYBOARD_PROCMSG = 'hidekeyboard';
|
|
|
|
CEF_SHOWKEYBOARD = WM_APP + $B01;
|
|
CEF_HIDEKEYBOARD = WM_APP + $B02;
|
|
|
|
KIOSKBROWSER_CONTEXTMENU_EXIT = MENU_ID_USER_FIRST + 1;
|
|
KIOSKBROWSER_CONTEXTMENU_HIDEKEYBOARD = MENU_ID_USER_FIRST + 2;
|
|
KIOSKBROWSER_CONTEXTMENU_SHOWKEYBOARD = MENU_ID_USER_FIRST + 3;
|
|
|
|
type
|
|
TForm1 = class(TForm)
|
|
chrmosr: TChromium;
|
|
AppEvents: TApplicationEvents;
|
|
Timer1: TTimer;
|
|
Panel1: TBufferPanel;
|
|
TouchKeyboard1: TTouchKeyboard;
|
|
|
|
procedure AppEventsMessage(var Msg: tagMSG; var Handled: Boolean);
|
|
procedure Timer1Timer(Sender: TObject);
|
|
|
|
procedure Panel1Enter(Sender: TObject);
|
|
procedure Panel1Exit(Sender: TObject);
|
|
procedure Panel1Resize(Sender: TObject);
|
|
procedure Panel1Click(Sender: TObject);
|
|
procedure Panel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
procedure Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
procedure Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
|
|
procedure Panel1MouseLeave(Sender: TObject);
|
|
|
|
procedure FormCreate(Sender: TObject);
|
|
procedure FormDestroy(Sender: TObject);
|
|
procedure FormShow(Sender: TObject);
|
|
procedure FormHide(Sender: TObject);
|
|
procedure FormAfterMonitorDpiChanged(Sender: TObject; OldDPI, NewDPI: Integer);
|
|
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
|
|
|
|
procedure chrmosrPaint(Sender: TObject; const browser: ICefBrowser; kind: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; width, height: Integer);
|
|
procedure chrmosrCursorChange(Sender: TObject; const browser: ICefBrowser; cursor: HICON; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo);
|
|
procedure chrmosrGetViewRect(Sender: TObject; const browser: ICefBrowser; var rect: TCefRect);
|
|
procedure chrmosrGetScreenPoint(Sender: TObject; const browser: ICefBrowser; viewX, viewY: Integer; var screenX, screenY: Integer; out Result: Boolean);
|
|
procedure chrmosrGetScreenInfo(Sender: TObject; const browser: ICefBrowser; var screenInfo: TCefScreenInfo; out Result: Boolean);
|
|
procedure chrmosrPopupShow(Sender: TObject; const browser: ICefBrowser; show: Boolean);
|
|
procedure chrmosrPopupSize(Sender: TObject; const browser: ICefBrowser; const rect: PCefRect);
|
|
procedure chrmosrTooltip(Sender: TObject; const browser: ICefBrowser; var text: ustring; out Result: Boolean);
|
|
procedure chrmosrBeforePopup(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 noJavascriptAccess: Boolean; var Result: Boolean);
|
|
procedure chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
|
|
procedure chrmosrBeforeContextMenu(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel);
|
|
procedure chrmosrContextMenuCommand(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; commandId: Integer; eventFlags: Cardinal; out Result: Boolean);
|
|
procedure chrmosrVirtualKeyboardRequested(Sender: TObject; const browser: ICefBrowser; input_mode: TCefTextInpuMode);
|
|
|
|
protected
|
|
FPopUpBitmap : TBitmap;
|
|
FPopUpRect : TRect;
|
|
FShowPopUp : boolean;
|
|
FResizing : boolean;
|
|
FPendingResize : boolean;
|
|
FCanClose : boolean;
|
|
FClosing : boolean;
|
|
FResizeCS : TCriticalSection;
|
|
|
|
FLastClickCount : integer;
|
|
FLastClickTime : integer;
|
|
FLastClickPoint : TPoint;
|
|
FLastClickButton : TMouseButton;
|
|
|
|
function getModifiers(Shift: TShiftState): TCefEventFlags;
|
|
function GetButton(Button: TMouseButton): TCefMouseButtonType;
|
|
procedure DoResize;
|
|
procedure InitializeLastClick;
|
|
function CancelPreviousClick(x, y : integer; var aCurrentTime : integer) : boolean;
|
|
|
|
procedure WMMove(var aMessage : TWMMove); message WM_MOVE;
|
|
procedure WMMoving(var aMessage : TMessage); message WM_MOVING;
|
|
procedure WMCaptureChanged(var aMessage : TMessage); message WM_CAPTURECHANGED;
|
|
procedure WMCancelMode(var aMessage : TMessage); message WM_CANCELMODE;
|
|
procedure WMEnterMenuLoop(var aMessage: TMessage); message WM_ENTERMENULOOP;
|
|
procedure WMExitMenuLoop(var aMessage: TMessage); message WM_EXITMENULOOP;
|
|
procedure PendingResizeMsg(var aMessage : TMessage); message CEF_PENDINGRESIZE;
|
|
procedure ShowKeyboardMsg(var aMessage : TMessage); message CEF_SHOWKEYBOARD;
|
|
procedure HideKeyboardMsg(var aMessage : TMessage); message CEF_HIDEKEYBOARD;
|
|
|
|
public
|
|
{ Public declarations }
|
|
end;
|
|
|
|
var
|
|
Form1: TForm1;
|
|
|
|
procedure CreateGlobalCEFApp;
|
|
|
|
implementation
|
|
|
|
{$R *.dfm}
|
|
|
|
uses
|
|
{$IFDEF DELPHI16_UP}
|
|
System.Math,
|
|
{$ELSE}
|
|
Math,
|
|
{$ENDIF}
|
|
uCEFMiscFunctions, uCEFApplication, uCEFProcessMessage;
|
|
|
|
// This is a simplified Kiosk browser using the off-screen mode (OSR) and a virtual keyboard.
|
|
// The default URL is defined in the HOMEPAGE_URL constant.
|
|
// To close this app press the ESC key or select the 'Exit' option in the context menu.
|
|
|
|
// This is the destruction sequence in OSR mode :
|
|
// 1- FormCloseQuery sets CanClose to the initial FCanClose value (False) and calls chrmosr.CloseBrowser(True).
|
|
// 2- chrmosr.CloseBrowser(True) will trigger chrmosr.OnClose and we have to
|
|
// set "Result" to false and CEF3 will destroy the internal browser immediately.
|
|
// 3- chrmosr.OnBeforeClose is triggered because the internal browser was destroyed.
|
|
// Now we set FCanClose to True and send WM_CLOSE to the form.
|
|
|
|
procedure CreateGlobalCEFApp;
|
|
begin
|
|
GlobalCEFApp := TCefApplication.Create;
|
|
GlobalCEFApp.WindowlessRenderingEnabled := True;
|
|
GlobalCEFApp.EnableHighDPISupport := True;
|
|
end;
|
|
|
|
procedure TForm1.AppEventsMessage(var Msg: tagMSG; var Handled: Boolean);
|
|
var
|
|
TempKeyEvent : TCefKeyEvent;
|
|
TempMouseEvent : TCefMouseEvent;
|
|
begin
|
|
case Msg.message of
|
|
WM_SYSCHAR :
|
|
if Panel1.Focused then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_CHAR;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
|
|
TempKeyEvent.windows_key_code := Msg.wParam;
|
|
TempKeyEvent.native_key_code := Msg.lParam;
|
|
TempKeyEvent.is_system_key := ord(True);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
Handled := True;
|
|
end;
|
|
|
|
WM_SYSKEYDOWN :
|
|
if Panel1.Focused then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
|
|
TempKeyEvent.windows_key_code := Msg.wParam;
|
|
TempKeyEvent.native_key_code := Msg.lParam;
|
|
TempKeyEvent.is_system_key := ord(True);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
Handled := True;
|
|
end;
|
|
|
|
WM_SYSKEYUP :
|
|
if Panel1.Focused then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_KEYUP;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
|
|
TempKeyEvent.windows_key_code := Msg.wParam;
|
|
TempKeyEvent.native_key_code := Msg.lParam;
|
|
TempKeyEvent.is_system_key := ord(True);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
Handled := True;
|
|
end;
|
|
|
|
WM_KEYDOWN :
|
|
if Panel1.Focused then
|
|
begin
|
|
// Close the demo when the user presses ESC
|
|
if (Msg.wParam = VK_ESCAPE) then
|
|
begin
|
|
PostMessage(Handle, WM_CLOSE, 0, 0);
|
|
Handled := True;
|
|
end;
|
|
|
|
TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
|
|
TempKeyEvent.windows_key_code := Msg.wParam;
|
|
TempKeyEvent.native_key_code := Msg.lParam;
|
|
TempKeyEvent.is_system_key := ord(False);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
Handled := (Msg.wParam = VK_TAB);
|
|
end;
|
|
|
|
WM_KEYUP :
|
|
if Panel1.Focused then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_KEYUP;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
|
|
TempKeyEvent.windows_key_code := Msg.wParam;
|
|
TempKeyEvent.native_key_code := Msg.lParam;
|
|
TempKeyEvent.is_system_key := ord(False);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
Handled := True;
|
|
end;
|
|
|
|
WM_CHAR :
|
|
if Panel1.Focused then
|
|
begin
|
|
TempKeyEvent.kind := KEYEVENT_CHAR;
|
|
TempKeyEvent.modifiers := GetCefKeyboardModifiers(Msg.wParam, Msg.lParam);
|
|
TempKeyEvent.windows_key_code := Msg.wParam;
|
|
TempKeyEvent.native_key_code := Msg.lParam;
|
|
TempKeyEvent.is_system_key := ord(False);
|
|
TempKeyEvent.character := #0;
|
|
TempKeyEvent.unmodified_character := #0;
|
|
TempKeyEvent.focus_on_editable_field := ord(False);
|
|
|
|
chrmosr.SendKeyEvent(@TempKeyEvent);
|
|
Handled := True;
|
|
end;
|
|
|
|
WM_MOUSEWHEEL :
|
|
if Panel1.Focused and (GlobalCEFApp <> nil) then
|
|
begin
|
|
TempMouseEvent.x := Msg.lParam and $FFFF;
|
|
TempMouseEvent.y := Msg.lParam shr 16;
|
|
TempMouseEvent.modifiers := GetCefMouseModifiers(Msg.wParam);
|
|
DeviceToLogical(TempMouseEvent, GlobalCEFApp.DeviceScaleFactor);
|
|
chrmosr.SendMouseWheelEvent(@TempMouseEvent, 0, int16(Msg.wParam shr 16));
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
|
|
begin
|
|
FCanClose := True;
|
|
PostMessage(Handle, WM_CLOSE, 0, 0);
|
|
end;
|
|
|
|
procedure TForm1.chrmosrBeforeContextMenu( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
const frame : ICefFrame;
|
|
const params : ICefContextMenuParams;
|
|
const model : ICefMenuModel);
|
|
begin
|
|
model.AddSeparator;
|
|
|
|
if TouchKeyboard1.Visible then
|
|
model.AddItem(KIOSKBROWSER_CONTEXTMENU_HIDEKEYBOARD, 'Hide virtual keyboard')
|
|
else
|
|
model.AddItem(KIOSKBROWSER_CONTEXTMENU_SHOWKEYBOARD, 'Show virtual keyboard');
|
|
|
|
model.AddSeparator;
|
|
model.AddItem(KIOSKBROWSER_CONTEXTMENU_EXIT, 'Exit');
|
|
end;
|
|
|
|
procedure TForm1.chrmosrContextMenuCommand( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
const frame : ICefFrame;
|
|
const params : ICefContextMenuParams;
|
|
commandId : Integer;
|
|
eventFlags : Cardinal;
|
|
out Result : Boolean);
|
|
begin
|
|
Result := False;
|
|
|
|
case commandId of
|
|
KIOSKBROWSER_CONTEXTMENU_EXIT : PostMessage(Handle, WM_CLOSE, 0, 0);
|
|
KIOSKBROWSER_CONTEXTMENU_HIDEKEYBOARD : PostMessage(Handle, CEF_HIDEKEYBOARD, 0, 0);
|
|
KIOSKBROWSER_CONTEXTMENU_SHOWKEYBOARD : PostMessage(Handle, CEF_SHOWKEYBOARD, 0, 0);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrBeforePopup( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
const frame : ICefFrame;
|
|
const targetUrl : ustring;
|
|
const targetFrameName : ustring;
|
|
targetDisposition : TCefWindowOpenDisposition;
|
|
userGesture : Boolean;
|
|
const popupFeatures : TCefPopupFeatures;
|
|
var windowInfo : TCefWindowInfo;
|
|
var client : ICefClient;
|
|
var settings : TCefBrowserSettings;
|
|
var noJavascriptAccess : Boolean;
|
|
var 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 TForm1.chrmosrCursorChange( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
cursor : HICON;
|
|
cursorType : TCefCursorType;
|
|
const customCursorInfo : PCefCursorInfo);
|
|
begin
|
|
Panel1.Cursor := GefCursorToWindowsCursor(cursorType);
|
|
end;
|
|
|
|
procedure TForm1.chrmosrGetScreenInfo( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
var screenInfo : TCefScreenInfo;
|
|
out Result : Boolean);
|
|
var
|
|
TempRect : TCEFRect;
|
|
begin
|
|
if (GlobalCEFApp <> nil) then
|
|
begin
|
|
TempRect.x := 0;
|
|
TempRect.y := 0;
|
|
TempRect.width := DeviceToLogical(Panel1.Width, GlobalCEFApp.DeviceScaleFactor);
|
|
TempRect.height := DeviceToLogical(Panel1.Height, GlobalCEFApp.DeviceScaleFactor);
|
|
|
|
screenInfo.device_scale_factor := GlobalCEFApp.DeviceScaleFactor;
|
|
screenInfo.depth := 0;
|
|
screenInfo.depth_per_component := 0;
|
|
screenInfo.is_monochrome := Ord(False);
|
|
screenInfo.rect := TempRect;
|
|
screenInfo.available_rect := TempRect;
|
|
|
|
Result := True;
|
|
end
|
|
else
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrGetScreenPoint( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
viewX : Integer;
|
|
viewY : Integer;
|
|
var screenX : Integer;
|
|
var screenY : Integer;
|
|
out Result : Boolean);
|
|
var
|
|
TempScreenPt, TempViewPt : TPoint;
|
|
begin
|
|
if (GlobalCEFApp <> nil) then
|
|
begin
|
|
TempViewPt.x := LogicalToDevice(viewX, GlobalCEFApp.DeviceScaleFactor);
|
|
TempViewPt.y := LogicalToDevice(viewY, GlobalCEFApp.DeviceScaleFactor);
|
|
TempScreenPt := Panel1.ClientToScreen(TempViewPt);
|
|
screenX := TempScreenPt.x;
|
|
screenY := TempScreenPt.y;
|
|
Result := True;
|
|
end
|
|
else
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrGetViewRect( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
var rect : TCefRect);
|
|
begin
|
|
if (GlobalCEFApp <> nil) then
|
|
begin
|
|
rect.x := 0;
|
|
rect.y := 0;
|
|
rect.width := DeviceToLogical(Panel1.Width, GlobalCEFApp.DeviceScaleFactor);
|
|
rect.height := DeviceToLogical(Panel1.Height, GlobalCEFApp.DeviceScaleFactor);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrPaint( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
kind : TCefPaintElementType;
|
|
dirtyRectsCount : NativeUInt;
|
|
const dirtyRects : PCefRectArray;
|
|
const buffer : Pointer;
|
|
width : Integer;
|
|
height : Integer);
|
|
var
|
|
src, dst: PByte;
|
|
i, j, TempLineSize, TempSrcOffset, TempDstOffset, SrcStride, DstStride : Integer;
|
|
n : NativeUInt;
|
|
TempWidth, TempHeight, TempScanlineSize : integer;
|
|
TempBufferBits : Pointer;
|
|
TempForcedResize : boolean;
|
|
begin
|
|
try
|
|
FResizeCS.Acquire;
|
|
TempForcedResize := False;
|
|
|
|
if Panel1.BeginBufferDraw then
|
|
begin
|
|
if (kind = 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;
|
|
FPopUpBitmap.PixelFormat := pf32bit;
|
|
FPopUpBitmap.HandleType := bmDIB;
|
|
FPopUpBitmap.Width := width;
|
|
FPopUpBitmap.Height := height;
|
|
end;
|
|
|
|
TempWidth := FPopUpBitmap.Width;
|
|
TempHeight := FPopUpBitmap.Height;
|
|
TempScanlineSize := FPopUpBitmap.Width * SizeOf(TRGBQuad);
|
|
TempBufferBits := FPopUpBitmap.Scanline[pred(FPopUpBitmap.Height)];
|
|
end
|
|
else
|
|
begin
|
|
TempForcedResize := Panel1.UpdateBufferDimensions(Width, Height) or not(Panel1.BufferIsResized(False));
|
|
TempWidth := Panel1.BufferWidth;
|
|
TempHeight := Panel1.BufferHeight;
|
|
TempScanlineSize := Panel1.ScanlineSize;
|
|
TempBufferBits := Panel1.BufferBits;
|
|
end;
|
|
|
|
if (TempBufferBits <> nil) then
|
|
begin
|
|
SrcStride := Width * SizeOf(TRGBQuad);
|
|
DstStride := - TempScanlineSize;
|
|
|
|
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);
|
|
TempDstOffset := ((TempScanlineSize * pred(TempHeight)) - (dirtyRects[n].y * TempScanlineSize)) +
|
|
(dirtyRects[n].x * SizeOf(TRGBQuad));
|
|
|
|
src := @PByte(buffer)[TempSrcOffset];
|
|
dst := @PByte(TempBufferBits)[TempDstOffset];
|
|
|
|
i := 0;
|
|
j := min(dirtyRects[n].height, TempHeight - dirtyRects[n].y);
|
|
|
|
while (i < j) do
|
|
begin
|
|
Move(src^, dst^, TempLineSize);
|
|
|
|
Inc(dst, DstStride);
|
|
Inc(src, SrcStride);
|
|
inc(i);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
inc(n);
|
|
end;
|
|
|
|
if FShowPopup and (FPopUpBitmap <> nil) then
|
|
Panel1.BufferDraw(FPopUpRect.Left, FPopUpRect.Top, FPopUpBitmap);
|
|
end;
|
|
|
|
Panel1.EndBufferDraw;
|
|
Panel1.InvalidatePanel;
|
|
|
|
if (kind = PET_VIEW) then
|
|
begin
|
|
if TempForcedResize or FPendingResize then PostMessage(Handle, CEF_PENDINGRESIZE, 0, 0);
|
|
|
|
FResizing := False;
|
|
FPendingResize := False;
|
|
end;
|
|
end;
|
|
finally
|
|
FResizeCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrPopupShow( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
show : Boolean);
|
|
begin
|
|
if show then
|
|
FShowPopUp := True
|
|
else
|
|
begin
|
|
FShowPopUp := False;
|
|
FPopUpRect := rect(0, 0, 0, 0);
|
|
|
|
if (chrmosr <> nil) then chrmosr.Invalidate(PET_VIEW);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrPopupSize( 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 TForm1.chrmosrTooltip(Sender: TObject; const browser: ICefBrowser; var text: ustring; out Result: Boolean);
|
|
begin
|
|
Panel1.hint := text;
|
|
Panel1.ShowHint := (length(text) > 0);
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TForm1.chrmosrVirtualKeyboardRequested( Sender : TObject;
|
|
const browser : ICefBrowser;
|
|
input_mode : TCefTextInpuMode);
|
|
begin
|
|
if (input_mode = CEF_TEXT_INPUT_MODE_NONE) then
|
|
PostMessage(Handle, CEF_HIDEKEYBOARD, 0, 0)
|
|
else
|
|
PostMessage(Handle, CEF_SHOWKEYBOARD, 0, 0);
|
|
end;
|
|
|
|
function TForm1.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 TForm1.GetButton(Button: TMouseButton): TCefMouseButtonType;
|
|
begin
|
|
case Button of
|
|
TMouseButton.mbRight : Result := MBT_RIGHT;
|
|
TMouseButton.mbMiddle : Result := MBT_MIDDLE;
|
|
else Result := MBT_LEFT;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.WMMove(var aMessage : TWMMove);
|
|
begin
|
|
inherited;
|
|
|
|
if (chrmosr <> nil) then chrmosr.NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TForm1.WMMoving(var aMessage : TMessage);
|
|
begin
|
|
inherited;
|
|
|
|
if (chrmosr <> nil) then chrmosr.NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TForm1.WMCaptureChanged(var aMessage : TMessage);
|
|
begin
|
|
inherited;
|
|
|
|
if (chrmosr <> nil) then chrmosr.SendCaptureLostEvent;
|
|
end;
|
|
|
|
procedure TForm1.WMCancelMode(var aMessage : TMessage);
|
|
begin
|
|
inherited;
|
|
|
|
if (chrmosr <> nil) then chrmosr.SendCaptureLostEvent;
|
|
end;
|
|
|
|
procedure TForm1.WMEnterMenuLoop(var aMessage: TMessage);
|
|
begin
|
|
inherited;
|
|
|
|
if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := True;
|
|
end;
|
|
|
|
procedure TForm1.WMExitMenuLoop(var aMessage: TMessage);
|
|
begin
|
|
inherited;
|
|
|
|
if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := False;
|
|
end;
|
|
|
|
procedure TForm1.FormAfterMonitorDpiChanged(Sender: TObject; OldDPI, NewDPI: Integer);
|
|
begin
|
|
if (chrmosr <> nil) then
|
|
begin
|
|
chrmosr.NotifyScreenInfoChanged;
|
|
chrmosr.WasResized;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
|
|
begin
|
|
CanClose := FCanClose;
|
|
|
|
if not(FClosing) then
|
|
begin
|
|
FClosing := True;
|
|
Visible := False;
|
|
chrmosr.CloseBrowser(True);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.FormCreate(Sender: TObject);
|
|
begin
|
|
FPopUpBitmap := nil;
|
|
FPopUpRect := rect(0, 0, 0, 0);
|
|
FShowPopUp := False;
|
|
FResizing := False;
|
|
FPendingResize := False;
|
|
FCanClose := False;
|
|
FClosing := False;
|
|
FResizeCS := TCriticalSection.Create;
|
|
|
|
InitializeLastClick;
|
|
end;
|
|
|
|
procedure TForm1.FormDestroy(Sender: TObject);
|
|
begin
|
|
chrmosr.ShutdownDragAndDrop;
|
|
|
|
if (FPopUpBitmap <> nil) then FreeAndNil(FPopUpBitmap);
|
|
if (FResizeCS <> nil) then FreeAndNil(FResizeCS);
|
|
end;
|
|
|
|
procedure TForm1.FormHide(Sender: TObject);
|
|
begin
|
|
chrmosr.SendFocusEvent(False);
|
|
chrmosr.WasHidden(True);
|
|
end;
|
|
|
|
procedure TForm1.FormShow(Sender: TObject);
|
|
begin
|
|
if chrmosr.Initialized then
|
|
begin
|
|
chrmosr.WasHidden(False);
|
|
chrmosr.SendFocusEvent(True);
|
|
end
|
|
else
|
|
begin
|
|
// opaque white background color
|
|
chrmosr.Options.BackgroundColor := CefColorSetARGB($FF, $FF, $FF, $FF);
|
|
chrmosr.DefaultURL := HOMEPAGE_URL;
|
|
|
|
if chrmosr.CreateBrowser(nil, '') then
|
|
chrmosr.InitializeDragAndDrop(Panel1)
|
|
else
|
|
Timer1.Enabled := True;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.Panel1Click(Sender: TObject);
|
|
begin
|
|
Panel1.SetFocus;
|
|
end;
|
|
|
|
procedure TForm1.Panel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
TempEvent : TCefMouseEvent;
|
|
TempTime : integer;
|
|
begin
|
|
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
|
begin
|
|
Panel1.SetFocus;
|
|
|
|
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 := X;
|
|
TempEvent.y := Y;
|
|
TempEvent.modifiers := getModifiers(Shift);
|
|
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
|
chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), False, FLastClickCount);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.Panel1MouseLeave(Sender: TObject);
|
|
var
|
|
TempEvent : TCefMouseEvent;
|
|
TempPoint : TPoint;
|
|
TempTime : integer;
|
|
begin
|
|
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
|
begin
|
|
GetCursorPos(TempPoint);
|
|
TempPoint := Panel1.ScreenToclient(TempPoint);
|
|
|
|
if CancelPreviousClick(TempPoint.x, TempPoint.y, TempTime) then InitializeLastClick;
|
|
|
|
TempEvent.x := TempPoint.x;
|
|
TempEvent.y := TempPoint.y;
|
|
TempEvent.modifiers := GetCefMouseModifiers;
|
|
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
|
chrmosr.SendMouseMoveEvent(@TempEvent, True);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
TempEvent : TCefMouseEvent;
|
|
TempTime : integer;
|
|
begin
|
|
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
|
begin
|
|
if CancelPreviousClick(x, y, TempTime) then InitializeLastClick;
|
|
|
|
TempEvent.x := x;
|
|
TempEvent.y := y;
|
|
TempEvent.modifiers := getModifiers(Shift);
|
|
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
|
chrmosr.SendMouseMoveEvent(@TempEvent, False);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
TempEvent : TCefMouseEvent;
|
|
begin
|
|
if (GlobalCEFApp <> nil) and (chrmosr <> nil) then
|
|
begin
|
|
TempEvent.x := X;
|
|
TempEvent.y := Y;
|
|
TempEvent.modifiers := getModifiers(Shift);
|
|
DeviceToLogical(TempEvent, GlobalCEFApp.DeviceScaleFactor);
|
|
chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), True, FLastClickCount);
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.Panel1Resize(Sender: TObject);
|
|
begin
|
|
DoResize;
|
|
end;
|
|
|
|
procedure TForm1.PendingResizeMsg(var aMessage : TMessage);
|
|
begin
|
|
DoResize;
|
|
end;
|
|
|
|
procedure TForm1.ShowKeyboardMsg(var aMessage : TMessage);
|
|
begin
|
|
TouchKeyboard1.Visible := True;
|
|
end;
|
|
|
|
procedure TForm1.HideKeyboardMsg(var aMessage : TMessage);
|
|
begin
|
|
TouchKeyboard1.Visible := False;
|
|
end;
|
|
|
|
procedure TForm1.DoResize;
|
|
begin
|
|
try
|
|
FResizeCS.Acquire;
|
|
|
|
if FResizing then
|
|
FPendingResize := True
|
|
else
|
|
if Panel1.BufferIsResized then
|
|
chrmosr.Invalidate(PET_VIEW)
|
|
else
|
|
begin
|
|
FResizing := True;
|
|
chrmosr.WasResized;
|
|
end;
|
|
finally
|
|
FResizeCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.InitializeLastClick;
|
|
begin
|
|
FLastClickCount := 0;
|
|
FLastClickTime := 0;
|
|
FLastClickPoint.x := 0;
|
|
FLastClickPoint.y := 0;
|
|
FLastClickButton := mbLeft;
|
|
end;
|
|
|
|
function TForm1.CancelPreviousClick(x, y : integer; var aCurrentTime : integer) : boolean;
|
|
begin
|
|
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);
|
|
end;
|
|
|
|
procedure TForm1.Panel1Enter(Sender: TObject);
|
|
begin
|
|
chrmosr.SendFocusEvent(True);
|
|
end;
|
|
|
|
procedure TForm1.Panel1Exit(Sender: TObject);
|
|
begin
|
|
TouchKeyboard1.Visible := False;
|
|
chrmosr.SendFocusEvent(False);
|
|
end;
|
|
|
|
procedure TForm1.Timer1Timer(Sender: TObject);
|
|
begin
|
|
Timer1.Enabled := False;
|
|
|
|
if chrmosr.CreateBrowser(nil, '') then
|
|
chrmosr.InitializeDragAndDrop(Panel1)
|
|
else
|
|
if not(chrmosr.Initialized) then Timer1.Enabled := True;
|
|
end;
|
|
|
|
end.
|