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CEF4Delphi/demos/Delphi_FMX_Mac/FMXExternalPumpBrowser/uFMXExternalPumpBrowser.pas
salvadordf 29c04d2221 Updated copyright year 
Fixed the project version in the Lazarus LPK file
2022-01-01 10:41:21 +01:00

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// ************************************************************************
// ***************************** 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 © 2022 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 uFMXExternalPumpBrowser;
{$I cef.inc}
interface
uses
System.Types, System.UITypes, System.Classes, System.SyncObjs,
Macapi.AppKit, FMX.Types, FMX.Controls, FMX.Forms, FMX.Dialogs,
FMX.Edit, FMX.StdCtrls, FMX.Controls.Presentation,
{$IFDEF DELPHI17_UP}FMX.Graphics,{$ENDIF}
uCEFFMXChromium, uCEFFMXBufferPanel, uCEFTimerWorkScheduler,
uCEFInterfaces, uCEFTypes, uCEFConstants, uCEFChromiumCore, FMX.Layouts,
FMX.Memo.Types, FMX.ScrollBox, FMX.Memo, FMX.Menus, FMX.ComboEdit;
type
tagRGBQUAD = record
rgbBlue : BYTE;
rgbGreen : BYTE;
rgbRed : BYTE;
rgbReserved : BYTE;
end;
TRGBQuad = tagRGBQUAD;
TJSDialogInfo = record
OriginUrl : ustring;
MessageText : ustring;
DefaultPromptText : ustring;
DialogType : TCefJsDialogType;
Callback : ICefJsDialogCallback;
end;
TFMXExternalPumpBrowserFrm = class(TForm)
AddressPnl: TPanel;
chrmosr: TFMXChromium;
Timer1: TTimer;
SaveDialog1: TSaveDialog;
Panel1: TFMXBufferPanel;
Layout1: TLayout;
GoBtn: TButton;
SnapshotBtn: TButton;
MainMenu1: TMainMenu;
EditMenu: TMenuItem;
UndoMenuItem: TMenuItem;
RedoMenuItem: TMenuItem;
SeparatorMenuItem: TMenuItem;
CutMenuItem: TMenuItem;
CopyMenuItem: TMenuItem;
PasteMenuItem: TMenuItem;
DeleteMenuItem: TMenuItem;
SelectAllMenuItem: TMenuItem;
AddressCb: TComboEdit;
PopupMenu1: TPopupMenu;
BackMenuItem: TMenuItem;
ForwardMenuItem: TMenuItem;
procedure GoBtnClick(Sender: TObject);
procedure GoBtnEnter(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: Single);
procedure Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Single);
procedure Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Single);
procedure Panel1MouseLeave(Sender: TObject);
procedure Panel1MouseWheel(Sender: TObject; Shift: TShiftState; WheelDelta: Integer; var Handled: Boolean);
procedure Panel1KeyUp(Sender: TObject; var Key: Word; var KeyChar: Char; Shift: TShiftState);
procedure Panel1KeyDown(Sender: TObject; var Key: Word; var KeyChar: Char; Shift: TShiftState);
procedure Panel1DialogKey(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure FormActivate(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure FormHide(Sender: TObject);
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
procedure chrmosrPaint(Sender: TObject; const browser: ICefBrowser; type_: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; width, height: Integer);
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 chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
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 extra_info: ICefDictionaryValue; var noJavascriptAccess: Boolean; var Result: Boolean);
procedure chrmosrAfterCreated(Sender: TObject; const browser: ICefBrowser);
procedure chrmosrCursorChange(Sender: TObject; const browser: ICefBrowser; cursor_: TCefCursorHandle; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo; var aResult: Boolean);
procedure chrmosrBeforeContextMenu(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel);
procedure chrmosrJsdialog(Sender: TObject; const browser: ICefBrowser; const originUrl: ustring; dialogType: TCefJsDialogType; const messageText, defaultPromptText: ustring; const callback: ICefJsDialogCallback; out suppressMessage, Result: Boolean);
procedure Timer1Timer(Sender: TObject);
procedure AddressEdtEnter(Sender: TObject);
procedure PopupMenu1Popup(Sender: TObject);
procedure SnapshotBtnClick(Sender: TObject);
procedure SnapshotBtnEnter(Sender: TObject);
procedure CopyMenuItemClick(Sender: TObject);
procedure CutMenuItemClick(Sender: TObject);
procedure DeleteMenuItemClick(Sender: TObject);
procedure PasteMenuItemClick(Sender: TObject);
procedure RedoMenuItemClick(Sender: TObject);
procedure SelectAllMenuItemClick(Sender: TObject);
procedure UndoMenuItemClick(Sender: TObject);
procedure BackMenuItemClick(Sender: TObject);
procedure ForwardMenuItemClick(Sender: TObject);
protected
FPopUpBitmap : TBitmap;
FPopUpRect : TRect;
FShowPopUp : boolean;
FResizing : boolean;
FPendingResize : boolean;
FCanClose : boolean;
FClosing : boolean;
FResizeCS : TCriticalSection;
{$IFDEF DELPHI17_UP}
FMouseWheelService : IFMXMouseService;
{$ENDIF}
FJSDialogInfo : TJSDialogInfo;
FLastClickPoint : TPointF;
procedure GlobalCEFTimerWorkScheduler_OnAllowDoWork(Sender: TObject; var allow : boolean);
procedure LoadURL;
function getModifiers(Shift: TShiftState): TCefEventFlags; overload;
function getModifiers(Shift: TShiftState; KeyCode: integer): TCefEventFlags; overload;
function getModifiers(Button: TMouseButton; Shift: TShiftState): TCefEventFlags; overload;
function GetButton(Button: TMouseButton): TCefMouseButtonType;
function GetMousePosition(var aPoint : TPointF) : boolean;
procedure ShowPendingJSDialog;
procedure ShowPendingPopupMenu;
public
procedure DoResize;
procedure NotifyMoveOrResizeStarted;
procedure SendCaptureLostEvent;
procedure SetBounds(ALeft: Integer; ATop: Integer; AWidth: Integer; AHeight: Integer); override;
end;
var
FMXExternalPumpBrowserFrm : TFMXExternalPumpBrowserFrm;
// This is a simple browser using FireMonkey components in OSR mode (off-screen
// rendering) and a external message pump for MacOS.
// It's recomemded to understand the code in the SimpleOSRBrowser and
// OSRExternalPumpBrowser demos before reading the code in this demo.
// All FMX applications using CEF4Delphi should add the $(FrameworkType)
// conditional define in the project options to avoid duplicated resources.
// This demo has that define in the menu option :
// Project -> Options -> Building -> Delphi compiler -> Conditional defines
// (All configurations)
// The subprocesses may need to use "FMX" instead of the $(FrameworkType)
// conditional define
// As mentioned in the CEF4Delphi information page, Chromium in MacOS requires
// 4 helper bundles used for the subprocesses. The helpers must be copied inside
// the "Contents/Frameworks" directory along with the CEF binaries.
// Read this for more details :
// https://www.briskbard.com/index.php?lang=en&pageid=cef#builddemo
// The Helpers *MUST* have these names :
// <appname> Helper.app
// <appname> Helper (GPU).app
// <appname> Helper (Plugin).app
// <appname> Helper (Renderer).app
// Delphi doesn't allow project names with spaces so you need to rename all the
// helper bundles and the executable inside them. The "AppHelperRenamer" tool
// can be used for that purpose.
// The CopyCEFFramework and CopyCEFHelpers calls in the DPR file will copy
// the CEF binaries and the helper bundles automatically but those functions
// should only be used during development because the final build should have
// all the bundle contents signed using your "Apple developer certificate".
// All the helpers in this demo have extra information in the info.plist file.
// Open the "Project -> Options..." menu option and select "Application -> Version Info"
// in the left tree to edit the information in the info.plist file.
// As you can see in the helper projects, these keys have the final helper name :
// CFBundleName, CFBundleDisplayName and CFBundleExecutable.
// You also need to add a new key called "NSBGOnly" with a value "1" because the
// helper projects are regular multidevice applications without forms and
// the NSBGOnly key hides the app bundle icon from the dock.
// All the helpers use the uCEFLoader.pas unit to initialize and finalize CEF in
// the "initialization" and "finalization" sections of that unit.
// Adding the CEF binaries and the helpers to the "Contents/Frameworks"
// directory while the main application is deployed is possible but then Delphi
// runs codesign to sign all those files. You need to setup your
// "Apple developer certificate" details in the project options.
// Open the "Project -> Options..." menu option and select "Deployment -> Provisioning"
// to fill the certificate details needed to sign your application.
// Chromium requires subclassing NSApplication and implementing CrAppProtocol in
// NSApplication but the Firemonkey framework only allows to do that partially.
// This is a known cause of issues that can be avoided using custom popup menus
// and dialogs. This demo shows how to use a custom popup menu to replace the
// context menu and Firemonkey dialogs to replace JavaScript dialogs.
// If you detect some other issues when the browser shows some native user
// interface controls then replace them with custom Firemonkey controls.
// 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 the default
// implementation will destroy the internal browser immediately, which will
// trigger the chrmosr.OnBeforeClose event.
// 3- chrmosr.OnBeforeClose sets FCanClose to True and closes the form.
procedure CreateGlobalCEFApp;
implementation
{$R *.fmx}
uses
System.SysUtils, System.Math, System.IOUtils,
FMX.Platform, FMX.DialogService, FMX.DialogService.Async,
uCEFMiscFunctions, uCEFApplication, uFMXApplicationService,
uCEFMacOSConstants, uCEFMacOSFunctions;
procedure GlobalCEFApp_OnScheduleMessagePumpWork(const aDelayMS : int64);
begin
if (GlobalCEFTimerWorkScheduler <> nil) then
GlobalCEFTimerWorkScheduler.ScheduleMessagePumpWork(aDelayMS);
end;
procedure CreateGlobalCEFApp;
begin
GlobalCEFApp := TCefApplication.Create;
GlobalCEFApp.WindowlessRenderingEnabled := True;
GlobalCEFApp.EnableHighDPISupport := True;
GlobalCEFApp.ExternalMessagePump := True;
GlobalCEFApp.MultiThreadedMessageLoop := False;
GlobalCEFApp.UseMockKeyChain := True;
GlobalCEFApp.OnScheduleMessagePumpWork := GlobalCEFApp_OnScheduleMessagePumpWork;
{$IFDEF DEBUG}
GlobalCEFApp.LogFile := TPath.GetHomePath + TPath.DirectorySeparatorChar + 'debug.log';
GlobalCEFApp.LogSeverity := LOGSEVERITY_INFO;
{$ENDIF}
// TCEFTimerWorkScheduler will call cef_do_message_loop_work when
// it's told in the GlobalCEFApp.OnScheduleMessagePumpWork event.
// GlobalCEFTimerWorkScheduler needs to be created before the
// GlobalCEFApp.StartMainProcess call.
GlobalCEFTimerWorkScheduler := TCEFTimerWorkScheduler.Create;
end;
procedure TFMXExternalPumpBrowserFrm.FormActivate(Sender: TObject);
begin
if not(chrmosr.Initialized) then
begin
// opaque white background color
chrmosr.Options.BackgroundColor := CefColorSetARGB($FF, $FF, $FF, $FF);
if not(chrmosr.CreateBrowser) then
Timer1.Enabled := True;
end;
end;
procedure TFMXExternalPumpBrowserFrm.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
CanClose := FCanClose;
if not(FClosing) then
begin
FClosing := True;
Visible := False;
AddressPnl.Enabled := False;
FJSDialogInfo.Callback := nil;
chrmosr.CloseBrowser(True);
end;
end;
procedure TFMXExternalPumpBrowserFrm.FormCreate(Sender: TObject);
begin
TFMXApplicationService.AddPlatformService;
// Enable this code line in case there's an unexpected crash when
// cef_do_message_loop_work is called.
//GlobalCEFTimerWorkScheduler.OnAllowDoWork := GlobalCEFTimerWorkScheduler_OnAllowDoWork;
FPopUpBitmap := nil;
FPopUpRect := rect(0, 0, 0, 0);
FShowPopUp := False;
FResizing := False;
FPendingResize := False;
FCanClose := False;
FClosing := False;
FResizeCS := TCriticalSection.Create;
chrmosr.DefaultURL := AddressCb.Text;
{$IFDEF DELPHI17_UP}
if TPlatformServices.Current.SupportsPlatformService(IFMXMouseService) then
FMouseWheelService := TPlatformServices.Current.GetPlatformService(IFMXMouseService) as IFMXMouseService;
{$ENDIF}
end;
procedure TFMXExternalPumpBrowserFrm.FormDestroy(Sender: TObject);
begin
FResizeCS.Free;
if (FPopUpBitmap <> nil) then FreeAndNil(FPopUpBitmap);
end;
procedure TFMXExternalPumpBrowserFrm.FormHide(Sender: TObject);
begin
chrmosr.SetFocus(False);
chrmosr.WasHidden(True);
end;
procedure TFMXExternalPumpBrowserFrm.FormShow(Sender: TObject);
begin
if chrmosr.Initialized then
begin
chrmosr.WasHidden(False);
chrmosr.SetFocus(True);
end;
end;
procedure TFMXExternalPumpBrowserFrm.ForwardMenuItemClick(Sender: TObject);
begin
chrmosr.GoForward;
end;
procedure TFMXExternalPumpBrowserFrm.GoBtnClick(Sender: TObject);
begin
LoadURL;
end;
procedure TFMXExternalPumpBrowserFrm.LoadURL;
begin
FResizeCS.Acquire;
FResizing := False;
FPendingResize := False;
FResizeCS.Release;
chrmosr.LoadURL(AddressCb.Text);
end;
procedure TFMXExternalPumpBrowserFrm.GoBtnEnter(Sender: TObject);
begin
chrmosr.SetFocus(False);
end;
procedure TFMXExternalPumpBrowserFrm.Panel1Click(Sender: TObject);
begin
Panel1.SetFocus;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1DialogKey( Sender : TObject;
var Key : Word;
Shift : TShiftState);
begin
if (Key = vkTab) then Key := 0;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1Enter(Sender: TObject);
begin
chrmosr.SetFocus(True);
end;
procedure TFMXExternalPumpBrowserFrm.Panel1Exit(Sender: TObject);
begin
chrmosr.SetFocus(False);
end;
procedure TFMXExternalPumpBrowserFrm.Panel1KeyUp( Sender : TObject;
var Key : Word;
var KeyChar : Char;
Shift : TShiftState);
var
TempKeyEvent : TCefKeyEvent;
begin
if not(Panel1.IsFocused) or (KeyChar = #0) then
exit;
TempKeyEvent.kind := KEYEVENT_KEYUP;
TempKeyEvent.native_key_code := KeyToMacOSKeyCode(Key);
TempKeyEvent.modifiers := getModifiers(Shift, TempKeyEvent.native_key_code);
TempKeyEvent.windows_key_code := 0;
TempKeyEvent.is_system_key := ord(False);
TempKeyEvent.character := KeyChar;
TempKeyEvent.unmodified_character := KeyChar;
TempKeyEvent.focus_on_editable_field := ord(False);
chrmosr.SendKeyEvent(@TempKeyEvent);
end;
procedure TFMXExternalPumpBrowserFrm.Panel1KeyDown( Sender : TObject;
var Key : Word;
var KeyChar : Char;
Shift : TShiftState);
var
TempKeyEvent : TCefKeyEvent;
begin
if not(Panel1.IsFocused) then exit;
TempKeyEvent.kind := KEYEVENT_KEYDOWN;
TempKeyEvent.native_key_code := KeyToMacOSKeyCode(Key);
TempKeyEvent.modifiers := getModifiers(Shift, TempKeyEvent.native_key_code);
TempKeyEvent.windows_key_code := 0;
TempKeyEvent.is_system_key := ord(False);
TempKeyEvent.character := KeyChar;
TempKeyEvent.unmodified_character := KeyChar;
TempKeyEvent.focus_on_editable_field := ord(False);
chrmosr.SendKeyEvent(@TempKeyEvent);
if not(TempKeyEvent.native_key_code in CEF_MACOS_KEYPAD_KEYS +
CEF_MACOS_ARROW_KEYS +
CEF_MACOS_FUNCTION_KEYS) then
begin
TempKeyEvent.kind := KEYEVENT_CHAR;
chrmosr.SendKeyEvent(@TempKeyEvent);
end;
end;
procedure TFMXExternalPumpBrowserFrm.GlobalCEFTimerWorkScheduler_OnAllowDoWork(Sender: TObject; var allow : boolean);
begin
allow := not(TFMXApplicationService(TFMXApplicationService.NewFMXApplicationService).GetHandlingSendEvent);
end;
function TFMXExternalPumpBrowserFrm.GetMousePosition(var aPoint : TPointF) : boolean;
begin
{$IFDEF DELPHI17_UP}
if (FMouseWheelService <> nil) then
begin
aPoint := FMouseWheelService.GetMousePos;
Result := True;
end
else
begin
aPoint.x := 0;
aPoint.y := 0;
Result := False;
end;
{$ELSE}
TempPointF := Platform.GetMousePos;
Result := True;
{$ENDIF}
end;
procedure TFMXExternalPumpBrowserFrm.Panel1MouseLeave(Sender: TObject);
var
TempEvent : TCefMouseEvent;
TempPoint : TPointF;
begin
if GetMousePosition(TempPoint) then
begin
TempPoint := Panel1.ScreenToClient(TempPoint);
TempEvent.x := round(TempPoint.x);
TempEvent.y := round(TempPoint.y);
TempEvent.modifiers := EVENTFLAG_NONE;
chrmosr.SendMouseMoveEvent(@TempEvent, True);
end;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1MouseMove(Sender : TObject;
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);
chrmosr.SendMouseMoveEvent(@TempEvent, False);
end;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1MouseUp(Sender : TObject;
Button : TMouseButton;
Shift : TShiftState;
X, Y : Single);
var
TempEvent : TCefMouseEvent;
TempCount : integer;
begin
if not(ssTouch in Shift) then
begin
FLastClickPoint.x := x;
FLastClickPoint.y := y;
TempEvent.x := round(X);
TempEvent.y := round(Y);
TempEvent.modifiers := getModifiers(Button, Shift);
if (ssDouble in Shift) then
TempCount := 2
else
TempCount := 1;
chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), True, TempCount);
end;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1MouseDown(Sender : TObject;
Button : TMouseButton;
Shift : TShiftState;
X, Y : Single);
var
TempEvent : TCefMouseEvent;
TempCount : integer;
begin
if not(ssTouch in Shift) then
begin
TempEvent.x := round(X);
TempEvent.y := round(Y);
TempEvent.modifiers := getModifiers(Button, Shift);
if (ssDouble in Shift) then
TempCount := 2
else
TempCount := 1;
chrmosr.SendMouseClickEvent(@TempEvent, GetButton(Button), False, TempCount);
end;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1MouseWheel( Sender : TObject;
Shift : TShiftState;
WheelDelta : Integer;
var Handled : Boolean);
var
TempEvent : TCefMouseEvent;
TempPoint : TPointF;
begin
if Panel1.IsFocused and GetMousePosition(TempPoint) then
begin
TempPoint := Panel1.ScreenToClient(TempPoint);
TempEvent.x := round(TempPoint.x);
TempEvent.y := round(TempPoint.y);
TempEvent.modifiers := getModifiers(Shift);
chrmosr.SendMouseWheelEvent(@TempEvent, 0, WheelDelta);
end;
end;
procedure TFMXExternalPumpBrowserFrm.Panel1Resize(Sender: TObject);
begin
DoResize;
end;
procedure TFMXExternalPumpBrowserFrm.PasteMenuItemClick(Sender: TObject);
begin
chrmosr.ClipboardPaste;
end;
procedure TFMXExternalPumpBrowserFrm.PopupMenu1Popup(Sender: TObject);
begin
BackMenuItem.Enabled := chrmosr.CanGoBack;
ForwardMenuItem.Enabled := chrmosr.CanGoForward;
end;
procedure TFMXExternalPumpBrowserFrm.RedoMenuItemClick(Sender: TObject);
begin
chrmosr.ClipboardRedo;
end;
procedure TFMXExternalPumpBrowserFrm.Timer1Timer(Sender: TObject);
begin
Timer1.Enabled := False;
if not(chrmosr.CreateBrowser) then
Timer1.Enabled := True;
end;
procedure TFMXExternalPumpBrowserFrm.UndoMenuItemClick(Sender: TObject);
begin
chrmosr.ClipboardUndo;
end;
procedure TFMXExternalPumpBrowserFrm.AddressEdtEnter(Sender: TObject);
begin
chrmosr.SetFocus(False);
end;
procedure TFMXExternalPumpBrowserFrm.BackMenuItemClick(Sender: TObject);
begin
chrmosr.GoBack;
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrAfterCreated(Sender: TObject; const browser: ICefBrowser);
begin
// Now the browser is fully initialized we can enable the UI.
Caption := 'FMX External Pump Browser';
AddressPnl.Enabled := True;
Panel1.SetFocus;
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrBeforeClose(Sender: TObject; const browser: ICefBrowser);
begin
FCanClose := True;
TThread.ForceQueue(nil, procedure
begin
close
end);
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrBeforeContextMenu( Sender : TObject;
const browser : ICefBrowser;
const frame : ICefFrame;
const params : ICefContextMenuParams;
const model : ICefMenuModel);
begin
// Disable the context menu to avoid crashes and show a custom FMX popup menu instead.
// You can call the methods in "model" to populate the custom popup menu with the original menu options.
if (model <> nil) then model.Clear;
TThread.ForceQueue(nil, ShowPendingPopupMenu);
end;
procedure TFMXExternalPumpBrowserFrm.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 extra_info : ICefDictionaryValue;
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 TFMXExternalPumpBrowserFrm.chrmosrCursorChange( Sender : TObject;
const browser : ICefBrowser;
cursor_ : TCefCursorHandle;
cursorType : TCefCursorType;
const customCursorInfo : PCefCursorInfo;
var aResult : Boolean);
begin
Panel1.Cursor := CefCursorToWindowsCursor(cursorType);
aResult := True;
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrGetScreenInfo( Sender : TObject;
const browser : ICefBrowser;
var screenInfo : TCefScreenInfo;
out Result : Boolean);
var
TempRect : TCEFRect;
begin
TempRect.x := 0;
TempRect.y := 0;
TempRect.width := round(Panel1.Width);
TempRect.height := round(Panel1.Height);
screenInfo.device_scale_factor := Panel1.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 TFMXExternalPumpBrowserFrm.chrmosrGetScreenPoint( Sender : TObject;
const browser : ICefBrowser;
viewX : Integer;
viewY : Integer;
var screenX : Integer;
var 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 := Panel1.ClientToScreen(TempViewPt);
screenX := TempScreenPt.x;
screenY := TempScreenPt.y;
Result := True;
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrGetViewRect( Sender : TObject;
const browser : ICefBrowser;
var rect : TCefRect);
begin
rect.x := 0;
rect.y := 0;
rect.width := round(Panel1.Width);
rect.height := round(Panel1.Height);
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrJsdialog( Sender : TObject;
const browser : ICefBrowser;
const originUrl : ustring;
dialogType : TCefJsDialogType;
const messageText : ustring;
const defaultPromptText : ustring;
const callback : ICefJsDialogCallback;
out suppressMessage : Boolean;
out Result : Boolean);
begin
FJSDialogInfo.OriginUrl := originUrl;
FJSDialogInfo.DialogType := dialogType;
FJSDialogInfo.MessageText := messageText;
FJSDialogInfo.DefaultPromptText := defaultPromptText;
FJSDialogInfo.Callback := callback;
Result := True;
suppressMessage := False;
TThread.ForceQueue(nil, ShowPendingJSDialog);
end;
procedure TFMXExternalPumpBrowserFrm.ShowPendingJSDialog;
var
TempCaption : string;
begin
TempCaption := 'JavaScript message from : ' + FJSDialogInfo.OriginUrl;
case FJSDialogInfo.DialogType of
JSDIALOGTYPE_CONFIRM :
begin
TempCaption := TempCaption + CRLF + CRLF + FJSDialogInfo.MessageText;
TDialogServiceAsync.MessageDialog(TempCaption,
TMsgDlgType.mtConfirmation,
[TMsgDlgBtn.mbYes, TMsgDlgBtn.mbNo],
TMsgDlgBtn.mbYes,
0,
procedure(const AResult: TModalResult)
begin
FJSDialogInfo.Callback.cont(AResult in [mrOk, mrYes], '');
FJSDialogInfo.Callback := nil;
end);
end;
JSDIALOGTYPE_PROMPT :
TDialogServiceAsync.InputQuery(TempCaption,
[FJSDialogInfo.MessageText],
[FJSDialogInfo.DefaultPromptText],
procedure(const AResult: TModalResult; const AValues: array of string)
begin
FJSDialogInfo.Callback.cont(AResult in [mrOk, mrYes], AValues[0]);
FJSDialogInfo.Callback := nil;
end);
else // JSDIALOGTYPE_ALERT
begin
TempCaption := TempCaption + CRLF + CRLF + FJSDialogInfo.MessageText;
TDialogServiceAsync.ShowMessage(TempCaption);
FJSDialogInfo.Callback := nil;
end;
end;
end;
procedure TFMXExternalPumpBrowserFrm.ShowPendingPopupMenu;
var
TempPoint : TPointF;
begin
if not(GetMousePosition(TempPoint)) then
TempPoint := Panel1.ClientToScreen(FLastClickPoint);
PopupMenu1.Popup(TempPoint.X, TempPoint.Y);
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrPaint( Sender : TObject;
const browser : ICefBrowser;
type_ : TCefPaintElementType;
dirtyRectsCount : NativeUInt;
const dirtyRects : PCefRectArray;
const buffer : Pointer;
width : Integer;
height : Integer);
var
src, dst, srcPixel, dstPixel: PByte;
i, j, k, 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 Panel1.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);
{$IFDEF DELPHI17_UP}
FPopUpBitmap.BitmapScale := Panel1.ScreenScale;
{$ENDIF}
end;
TempWidth := FPopUpBitmap.Width;
TempHeight := FPopUpBitmap.Height;
{$IFNDEF DELPHI17_UP}
TempScanlineSize := FPopUpBitmap.BytesPerLine;
{$ENDIF}
TempBitmap := FPopUpBitmap;
end
else
begin
TempForcedResize := Panel1.UpdateBufferDimensions(Width, Height) or not(Panel1.BufferIsResized(False));
TempWidth := Panel1.BufferWidth;
TempHeight := Panel1.BufferHeight;
{$IFNDEF DELPHI17_UP}
TempScanlineSize := Panel1.ScanlineSize;
{$ENDIF}
TempBitmap := Panel1.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);
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];
{$ENDIF}
srcPixel := src;
dstPixel := dst;
k := TempLineSize;
while (k > 0) do
begin
// Switch the red and blue channels
dstPixel[0] := srcPixel[2];
dstPixel[1] := srcPixel[1];
dstPixel[2] := srcPixel[0];
dstPixel[3] := srcPixel[3];
inc(dstPixel, SizeOf(TRGBQuad));
inc(srcPixel, SizeOf(TRGBQuad));
dec(k);
end;
{$IFNDEF DELPHI17_UP}
inc(dst, DstStride);
{$ENDIF}
inc(src, SrcStride);
inc(i);
end;
end;
end;
inc(n);
end;
Panel1.InvalidatePanel;
finally
{$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);
Panel1.BufferDraw(FPopUpBitmap, TempSrcRect, TempDstRect);
end;
end;
if (type_ = PET_VIEW) then
begin
if TempForcedResize or FPendingResize then
TThread.ForceQueue(nil, DoResize);
FResizing := False;
FPendingResize := False;
end;
finally
Panel1.EndBufferDraw;
end;
finally
FResizeCS.Release;
end;
end;
procedure TFMXExternalPumpBrowserFrm.chrmosrPopupShow( Sender : TObject;
const browser : ICefBrowser;
show : Boolean);
begin
if show then
FShowPopUp := True
else
begin
FShowPopUp := False;
FPopUpRect := rect(0, 0, 0, 0);
chrmosr.Invalidate(PET_VIEW);
end;
end;
procedure TFMXExternalPumpBrowserFrm.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 TFMXExternalPumpBrowserFrm.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 TFMXExternalPumpBrowserFrm.CopyMenuItemClick(Sender: TObject);
begin
chrmosr.ClipboardCopy;
end;
procedure TFMXExternalPumpBrowserFrm.CutMenuItemClick(Sender: TObject);
begin
chrmosr.ClipboardCut;
end;
procedure TFMXExternalPumpBrowserFrm.DeleteMenuItemClick(Sender: TObject);
begin
chrmosr.ClipboardDel;
end;
procedure TFMXExternalPumpBrowserFrm.DoResize;
begin
try
if (FResizeCS <> nil) then
begin
FResizeCS.Acquire;
if FResizing then
FPendingResize := True
else
if Panel1.BufferIsResized then
chrmosr.Invalidate(PET_VIEW)
else
begin
FResizing := True;
chrmosr.WasResized;
end;
end;
finally
if (FResizeCS <> nil) then FResizeCS.Release;
end;
end;
procedure TFMXExternalPumpBrowserFrm.SetBounds(ALeft, ATop, AWidth, AHeight: Integer);
var
PositionChanged: Boolean;
begin
PositionChanged := (ALeft <> Left) or (ATop <> Top);
inherited SetBounds(ALeft, ATop, AWidth, AHeight);
if PositionChanged then NotifyMoveOrResizeStarted;
end;
procedure TFMXExternalPumpBrowserFrm.NotifyMoveOrResizeStarted;
begin
if (chrmosr <> nil) then chrmosr.NotifyMoveOrResizeStarted;
end;
procedure TFMXExternalPumpBrowserFrm.SelectAllMenuItemClick(Sender: TObject);
begin
chrmosr.SelectAll;
end;
procedure TFMXExternalPumpBrowserFrm.SendCaptureLostEvent;
begin
if (chrmosr <> nil) then chrmosr.SendCaptureLostEvent;
end;
function TFMXExternalPumpBrowserFrm.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;
if (ssCommand in Shift) then Result := Result or EVENTFLAG_COMMAND_DOWN;
end;
function TFMXExternalPumpBrowserFrm.getModifiers(Shift: TShiftState; KeyCode: integer): TCefEventFlags;
begin
Result := getModifiers(Shift);
if (KeyCode in CEF_MACOS_KEYPAD_KEYS) then
Result := Result or EVENTFLAG_IS_KEY_PAD;
end;
function TFMXExternalPumpBrowserFrm.getModifiers(Button: TMouseButton; Shift: TShiftState): TCefEventFlags;
begin
Result := getModifiers(shift);
case Button of
TMouseButton.mbLeft : Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
TMouseButton.mbRight : Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
TMouseButton.mbMiddle : Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
end;
end;
function TFMXExternalPumpBrowserFrm.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 TFMXExternalPumpBrowserFrm.SnapshotBtnClick(Sender: TObject);
begin
if SaveDialog1.Execute then Panel1.SaveToFile(SaveDialog1.FileName);
end;
procedure TFMXExternalPumpBrowserFrm.SnapshotBtnEnter(Sender: TObject);
begin
chrmosr.SetFocus(False);
end;
end.
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