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827 lines
25 KiB
ObjectPascal
827 lines
25 KiB
ObjectPascal
unit uMainForm;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, Forms, Controls, Graphics, Dialogs, ExtCtrls,
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LMessages, StdCtrls, LCLType, ComCtrls, Types, SyncObjs,
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{$IFDEF LCLQT}qt4,{$ENDIF}
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{$IFDEF LCLQT5}qt5,{$ENDIF}
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{$IFDEF LCLQT6}qt6,{$ENDIF}
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uCEFBufferPanel, uCEFChromium, uCEFInterfaces, uCEFTypes;
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type
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{ TMainForm }
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TMainForm = class(TForm)
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AddressCb: TComboBox;
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AddressPnl: TPanel;
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Panel1: TBufferPanel;
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Chromium1: TChromium;
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GoBtn: TButton;
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procedure Panel1Enter(Sender: TObject);
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procedure Panel1Exit(Sender: TObject);
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procedure Panel1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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procedure Panel1MouseEnter(Sender: TObject);
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procedure Panel1MouseLeave(Sender: TObject);
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procedure Panel1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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procedure Panel1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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procedure Panel1MouseWheel(Sender: TObject; Shift: TShiftState; WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
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procedure Panel1QTKeyPress(Sender: TObject; Event_: QEventH);
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procedure Panel1QTKeyRelease(Sender: TObject; Event_: QEventH);
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procedure Panel1Resize(Sender: TObject);
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procedure Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
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procedure Chromium1BeforeClose(Sender: TObject; const browser: ICefBrowser);
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procedure Chromium1BeforePopup(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; popup_id: Integer; 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);
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procedure Chromium1CursorChange(Sender: TObject; const browser: ICefBrowser; cursor_: TCefCursorHandle; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo; var aResult : boolean);
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procedure Chromium1GetScreenInfo(Sender: TObject; const browser: ICefBrowser; var screenInfo: TCefScreenInfo; out Result: Boolean);
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procedure Chromium1GetScreenPoint(Sender: TObject; const browser: ICefBrowser; viewX, viewY: Integer; var screenX, screenY: Integer; out Result: Boolean);
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procedure Chromium1GetViewRect(Sender: TObject; const browser: ICefBrowser; var rect: TCefRect);
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procedure Chromium1OpenUrlFromTab(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; out Result: Boolean);
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procedure Chromium1Paint(Sender: TObject; const browser: ICefBrowser; type_: TCefPaintElementType; dirtyRectsCount: NativeUInt; const dirtyRects: PCefRectArray; const buffer: Pointer; aWidth, aHeight: Integer);
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procedure Chromium1PopupShow(Sender: TObject; const browser: ICefBrowser; aShow: Boolean);
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procedure Chromium1PopupSize(Sender: TObject; const browser: ICefBrowser; const rect: PCefRect);
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procedure Chromium1SetFocus(Sender: TObject; const browser: ICefBrowser; source: TCefFocusSource; out Result: Boolean);
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procedure Chromium1Tooltip(Sender: TObject; const browser: ICefBrowser; var aText: ustring; out Result: Boolean);
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procedure FormActivate(Sender: TObject);
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procedure FormCloseQuery(Sender: TObject; var CanClose: boolean);
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procedure FormCreate(Sender: TObject);
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procedure FormDestroy(Sender: TObject);
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procedure FormHide(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure FormWindowStateChange(Sender: TObject);
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procedure Application_OnActivate(Sender: TObject);
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procedure Application_OnDeactivate(Sender: TObject);
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procedure AddressCbEnter(Sender: TObject);
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procedure GoBtnClick(Sender: TObject);
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procedure GoBtnEnter(Sender: TObject);
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private
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protected
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FPopUpRect : TRect;
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FShowPopUp : boolean;
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FResizing : boolean;
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FPendingResize : boolean;
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FCanClose : boolean;
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FClosing : boolean;
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FResizeCS : TCriticalSection;
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FBrowserCS : TCriticalSection;
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FPanelCursor : TCursor;
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FPanelHint : ustring;
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FPanelOffset : TPoint;
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function GetPanelCursor : TCursor;
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function GetPanelHint : ustring;
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procedure SetPanelCursor(aValue : TCursor);
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procedure SetPanelHint(const aValue : ustring);
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procedure SendCompMessage(aMsg : cardinal; aData: PtrInt = 0);
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function getModifiers(Shift: TShiftState): TCefEventFlags;
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function GetButton(Button: TMouseButton): TCefMouseButtonType;
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procedure DoResize;
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procedure UpdatePanelOffset;
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procedure BrowserCreatedMsg(Data: PtrInt);
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procedure BrowserCloseFormMsg(Data: PtrInt);
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procedure PendingResizeMsg(Data: PtrInt);
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procedure PendingInvalidateMsg(Data: PtrInt);
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procedure PendingCursorUpdateMsg(Data: PtrInt);
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procedure PendingHintUpdateMsg(Data: PtrInt);
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// CEF needs to handle these messages to call TChromium.NotifyMoveOrResizeStarted
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procedure WMMove(var Message: TLMMove); message LM_MOVE;
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procedure WMSize(var Message: TLMSize); message LM_SIZE;
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procedure WMWindowPosChanged(var Message: TLMWindowPosChanged); message LM_WINDOWPOSCHANGED;
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property PanelCursor : TCursor read GetPanelCursor write SetPanelCursor;
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property PanelHint : ustring read GetPanelHint write SetPanelHint;
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public
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end;
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var
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MainForm: TMainForm;
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procedure CreateGlobalCEFApp;
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function StartMainProcess: boolean;
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implementation
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{$R *.lfm}
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uses
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Math,
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uCEFMiscFunctions, uCEFApplication, uCEFConstants, uCEFBitmapBitBuffer,
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uCEFLinuxFunctions;
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const
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CEF_UPDATE_CURSOR = $A1D;
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CEF_UPDATE_HINT = $A1E;
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var
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MainAppEvent : TEventObject;
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{GlobalCEFApp functions}
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{%Region}
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procedure GlobalCEFApp_OnContextInitialized();
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begin
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MainAppEvent.SetEvent;
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end;
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procedure CreateGlobalCEFApp;
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begin
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GlobalCEFApp := TCefApplication.Create;
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GlobalCEFApp.LogFile := 'debug.log';
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GlobalCEFApp.LogSeverity := LOGSEVERITY_INFO;
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GlobalCEFApp.RootCache := 'RootCache';
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GlobalCEFApp.SetCurrentDir := True;
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GlobalCEFApp.DisableZygote := True;
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GlobalCEFApp.OnContextInitialized := @GlobalCEFApp_OnContextInitialized;
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end;
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function StartMainProcess: boolean;
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begin
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Result := False;
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if GlobalCEFApp.StartMainProcess then
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begin
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// Wait until the context is initialized before initializing GTK.
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if (MainAppEvent.WaitFor(10000) = wrTimeout) then
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CefDebugLog('CEF initialization failure!')
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else
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Result := True;
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end;
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end;
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{%Endregion}
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{TBufferPanel events}
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{%Region}
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procedure TMainForm.Panel1Enter(Sender: TObject);
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begin
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Chromium1.SetFocus(True);
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end;
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procedure TMainForm.Panel1Exit(Sender: TObject);
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begin
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Chromium1.SetFocus(False);
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end;
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procedure TMainForm.Panel1MouseDown(Sender: TObject; Button: TMouseButton;
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Shift: TShiftState; X, Y: Integer);
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var
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TempEvent : TCefMouseEvent;
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begin
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Panel1.SetFocus;
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TempEvent.x := X;
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TempEvent.y := Y;
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TempEvent.modifiers := getModifiers(Shift);
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DeviceToLogical(TempEvent, Panel1.ScreenScale);
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Chromium1.SendMouseClickEvent(@TempEvent, GetButton(Button), False, 1);
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end;
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procedure TMainForm.Panel1MouseEnter(Sender: TObject);
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var
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TempEvent : TCefMouseEvent;
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TempPoint : TPoint;
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begin
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TempPoint := Panel1.ScreenToClient(mouse.CursorPos);
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TempEvent.x := TempPoint.x;
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TempEvent.y := TempPoint.y;
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TempEvent.modifiers := EVENTFLAG_NONE;
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DeviceToLogical(TempEvent, Panel1.ScreenScale);
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Chromium1.SendMouseMoveEvent(@TempEvent, False);
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end;
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procedure TMainForm.Panel1MouseLeave(Sender: TObject);
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var
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TempEvent : TCefMouseEvent;
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TempPoint : TPoint;
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begin
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TempPoint := Panel1.ScreenToClient(mouse.CursorPos);
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TempEvent.x := TempPoint.x;
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TempEvent.y := TempPoint.y;
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TempEvent.modifiers := EVENTFLAG_NONE;
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DeviceToLogical(TempEvent, Panel1.ScreenScale);
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Chromium1.SendMouseMoveEvent(@TempEvent, True);
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end;
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procedure TMainForm.Panel1MouseMove(Sender: TObject; Shift: TShiftState; X,
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Y: Integer);
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var
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TempEvent : TCefMouseEvent;
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begin
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TempEvent.x := x;
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TempEvent.y := y;
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TempEvent.modifiers := getModifiers(Shift);
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DeviceToLogical(TempEvent, Panel1.ScreenScale);
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Chromium1.SendMouseMoveEvent(@TempEvent, False);
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end;
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procedure TMainForm.Panel1MouseUp(Sender: TObject; Button: TMouseButton;
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Shift: TShiftState; X, Y: Integer);
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var
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TempEvent : TCefMouseEvent;
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begin
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TempEvent.x := X;
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TempEvent.y := Y;
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TempEvent.modifiers := getModifiers(Shift);
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DeviceToLogical(TempEvent, Panel1.ScreenScale);
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Chromium1.SendMouseClickEvent(@TempEvent, GetButton(Button), True, 1);
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end;
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procedure TMainForm.Panel1MouseWheel(Sender: TObject; Shift: TShiftState;
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WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
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var
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TempEvent : TCefMouseEvent;
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begin
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TempEvent.x := MousePos.x;
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TempEvent.y := MousePos.y;
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TempEvent.modifiers := getModifiers(Shift);
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DeviceToLogical(TempEvent, Panel1.ScreenScale);
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Chromium1.SendMouseWheelEvent(@TempEvent, 0, WheelDelta);
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end;
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procedure TMainForm.Panel1QTKeyPress(Sender: TObject; Event_: QEventH);
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var
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TempCefEvent : TCefKeyEvent;
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begin
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QTKeyEventToCEFKeyEvent(QKeyEventH(Event_), TempCefEvent);
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TempCefEvent.kind := KEYEVENT_RAWKEYDOWN;
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Chromium1.SendKeyEvent(@TempCefEvent); CefKeyEventLog(TempCefEvent);
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TempCefEvent.kind := KEYEVENT_CHAR;
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Chromium1.SendKeyEvent(@TempCefEvent); CefKeyEventLog(TempCefEvent);
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end;
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procedure TMainForm.Panel1QTKeyRelease(Sender: TObject; Event_: QEventH);
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var
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TempCefEvent : TCefKeyEvent;
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begin
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QTKeyEventToCEFKeyEvent(QKeyEventH(Event_), TempCefEvent);
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TempCefEvent.kind := KEYEVENT_KEYUP;
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Chromium1.SendKeyEvent(@TempCefEvent); CefKeyEventLog(TempCefEvent);
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end;
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procedure TMainForm.Panel1Resize(Sender: TObject);
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begin
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DoResize;
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end;
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{%Endregion}
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{TChromium events}
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{%Region}
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procedure TMainForm.Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
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begin
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// Now the browser is fully initialized we can initialize the UI.
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SendCompMessage(CEF_AFTERCREATED);
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end;
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procedure TMainForm.Chromium1BeforeClose(Sender: TObject;
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const browser: ICefBrowser);
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begin
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FCanClose := True;
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SendCompMessage(CEF_BEFORECLOSE);
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end;
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procedure TMainForm.Chromium1BeforePopup(Sender: TObject;
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const browser: ICefBrowser; const frame: ICefFrame; popup_id: Integer;
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const targetUrl, targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition;
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userGesture: Boolean; const popupFeatures: TCefPopupFeatures;
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var windowInfo: TCefWindowInfo; var client: ICefClient;
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var settings: TCefBrowserSettings; var extra_info: ICefDictionaryValue;
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var noJavascriptAccess: Boolean; var Result: Boolean);
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begin
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// For simplicity, this demo blocks all popup windows and new tabs
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Result := (targetDisposition in [CEF_WOD_NEW_FOREGROUND_TAB, CEF_WOD_NEW_BACKGROUND_TAB, CEF_WOD_NEW_POPUP, CEF_WOD_NEW_WINDOW]);
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end;
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procedure TMainForm.Chromium1CursorChange(Sender: TObject;
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const browser: ICefBrowser; cursor_: TCefCursorHandle;
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cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo;
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var aResult : boolean);
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begin
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PanelCursor := CefCursorToWindowsCursor(cursorType);
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aResult := True;
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SendCompMessage(CEF_UPDATE_CURSOR);
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end;
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procedure TMainForm.Chromium1GetScreenInfo(Sender: TObject;
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const browser: ICefBrowser; var screenInfo: TCefScreenInfo; out
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Result: Boolean);
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var
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TempRect : TCEFRect;
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TempScale : single;
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begin
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TempScale := Panel1.ScreenScale;
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TempRect.x := 0;
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TempRect.y := 0;
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TempRect.width := DeviceToLogical(Panel1.Width, TempScale);
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TempRect.height := DeviceToLogical(Panel1.Height, TempScale);
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screenInfo.device_scale_factor := TempScale;
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screenInfo.depth := 0;
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screenInfo.depth_per_component := 0;
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screenInfo.is_monochrome := Ord(False);
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screenInfo.rect := TempRect;
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screenInfo.available_rect := TempRect;
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Result := True;
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end;
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procedure TMainForm.Chromium1GetScreenPoint(Sender: TObject;
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const browser: ICefBrowser; viewX, viewY: Integer; var screenX,
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screenY: Integer; out Result: Boolean);
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begin
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try
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FBrowserCS.Acquire;
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screenX := LogicalToDevice(viewX, Panel1.ScreenScale) + FPanelOffset.x;
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screenY := LogicalToDevice(viewY, Panel1.ScreenScale) + FPanelOffset.y;
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Result := True;
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finally
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FBrowserCS.Release;
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end;
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end;
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procedure TMainForm.Chromium1GetViewRect(Sender: TObject;
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const browser: ICefBrowser; var rect: TCefRect);
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var
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TempScale : single;
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begin
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TempScale := Panel1.ScreenScale;
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rect.x := 0;
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rect.y := 0;
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rect.width := DeviceToLogical(Panel1.Width, TempScale);
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rect.height := DeviceToLogical(Panel1.Height, TempScale);
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end;
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procedure TMainForm.Chromium1OpenUrlFromTab(Sender: TObject;
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const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring;
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targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; out
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Result: Boolean);
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begin
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// For simplicity, this demo blocks all popup windows and new tabs
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Result := (targetDisposition in [CEF_WOD_NEW_FOREGROUND_TAB, CEF_WOD_NEW_BACKGROUND_TAB, CEF_WOD_NEW_POPUP, CEF_WOD_NEW_WINDOW]);
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end;
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procedure TMainForm.Chromium1Paint(Sender: TObject; const browser: ICefBrowser;
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type_: TCefPaintElementType; dirtyRectsCount: NativeUInt;
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const dirtyRects: PCefRectArray; const buffer: Pointer; aWidth, aHeight: Integer
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);
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var
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src, dst: PByte;
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i, j, TempLineSize, TempSrcOffset, TempDstOffset, SrcStride : Integer;
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n : NativeUInt;
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TempWidth, TempHeight : integer;
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TempBufferBits : Pointer;
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TempForcedResize : boolean;
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TempBitmap : TCEFBitmapBitBuffer;
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TempSrcRect : TRect;
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begin
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try
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FResizeCS.Acquire;
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TempForcedResize := False;
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if Panel1.BeginBufferDraw then
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begin
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if (type_ = PET_POPUP) then
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begin
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Panel1.UpdateOrigPopupBufferDimensions(aWidth, aHeight);
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TempBitmap := Panel1.OrigPopupBuffer;
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TempWidth := Panel1.OrigPopupBufferWidth;
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TempHeight := Panel1.OrigPopupBufferHeight;
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end
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else
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begin
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TempForcedResize := Panel1.UpdateOrigBufferDimensions(aWidth, aHeight) or
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not(Panel1.BufferIsResized(False));
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TempBitmap := Panel1.OrigBuffer;
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TempWidth := Panel1.OrigBufferWidth;
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TempHeight := Panel1.OrigBufferHeight;
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end;
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SrcStride := aWidth * SizeOf(TRGBQuad);
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n := 0;
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while (n < dirtyRectsCount) do
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begin
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if (dirtyRects^[n].x >= 0) and (dirtyRects^[n].y >= 0) then
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begin
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TempLineSize := min(dirtyRects^[n].width, TempWidth - dirtyRects^[n].x) * SizeOf(TRGBQuad);
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if (TempLineSize > 0) then
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begin
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TempSrcOffset := ((dirtyRects^[n].y * aWidth) + dirtyRects^[n].x) * SizeOf(TRGBQuad);
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TempDstOffset := (dirtyRects^[n].x * SizeOf(TRGBQuad));
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src := @PByte(buffer)[TempSrcOffset];
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i := 0;
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j := min(dirtyRects^[n].height, TempHeight - dirtyRects^[n].y);
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while (i < j) do
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begin
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TempBufferBits := TempBitmap.Scanline[dirtyRects^[n].y + i];
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dst := @PByte(TempBufferBits)[TempDstOffset];
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Move(src^, dst^, TempLineSize);
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Inc(src, SrcStride);
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inc(i);
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end;
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end;
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end;
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inc(n);
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end;
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if FShowPopup then
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begin
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TempSrcRect := Rect(0, 0,
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FPopUpRect.Right - FPopUpRect.Left,
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FPopUpRect.Bottom - FPopUpRect.Top);
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Panel1.DrawOrigPopupBuffer(TempSrcRect, FPopUpRect);
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end;
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Panel1.EndBufferDraw;
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SendCompMessage(CEF_PENDINGINVALIDATE);
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if (type_ = PET_VIEW) then
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begin
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if TempForcedResize or FPendingResize then
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SendCompMessage(CEF_PENDINGRESIZE);
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FResizing := False;
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FPendingResize := False;
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end;
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end;
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finally
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FResizeCS.Release;
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end;
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end;
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procedure TMainForm.Chromium1PopupShow(Sender: TObject; const browser: ICefBrowser; aShow: Boolean);
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begin
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if aShow then
|
|
FShowPopUp := True
|
|
else
|
|
begin
|
|
FShowPopUp := False;
|
|
FPopUpRect := rect(0, 0, 0, 0);
|
|
|
|
if (Chromium1 <> nil) then Chromium1.Invalidate(PET_VIEW);
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.Chromium1PopupSize(Sender: TObject; const browser: ICefBrowser; const rect: PCefRect);
|
|
begin
|
|
LogicalToDevice(rect^, Panel1.ScreenScale);
|
|
|
|
FPopUpRect.Left := rect^.x;
|
|
FPopUpRect.Top := rect^.y;
|
|
FPopUpRect.Right := rect^.x + rect^.width - 1;
|
|
FPopUpRect.Bottom := rect^.y + rect^.height - 1;
|
|
end;
|
|
|
|
procedure TMainForm.Chromium1SetFocus(Sender: TObject; const browser: ICefBrowser;
|
|
source: TCefFocusSource; out Result: Boolean);
|
|
begin
|
|
Result := not(Panel1.Focused);
|
|
end;
|
|
|
|
procedure TMainForm.Chromium1Tooltip(Sender: TObject; const browser: ICefBrowser; var aText: ustring; out Result: Boolean);
|
|
begin
|
|
PanelHint := aText;
|
|
Result := True;
|
|
|
|
SendCompMessage(CEF_UPDATE_HINT);
|
|
end;
|
|
{%Endregion}
|
|
|
|
{TForm events}
|
|
{%Region}
|
|
procedure TMainForm.FormActivate(Sender: TObject);
|
|
begin
|
|
// This will trigger the AfterCreated event when the browser is fully
|
|
// initialized and ready to receive commands.
|
|
|
|
// GlobalCEFApp.GlobalContextInitialized has to be TRUE before creating any browser
|
|
// If it's not initialized yet, we use a simple timer to create the browser later.
|
|
|
|
// Linux needs a visible form to create a browser so we need to use the
|
|
// TForm.OnActivate event instead of the TForm.OnShow event
|
|
|
|
if not(Chromium1.Initialized) then
|
|
begin
|
|
// We have to update the DeviceScaleFactor here to get the scale of the
|
|
// monitor where the main application form is located.
|
|
GlobalCEFApp.UpdateDeviceScaleFactor;
|
|
|
|
UpdatePanelOffset;
|
|
|
|
// opaque white background color
|
|
Chromium1.Options.BackgroundColor := CefColorSetARGB($FF, $FF, $FF, $FF);
|
|
Chromium1.DefaultURL := UTF8Decode(AddressCb.Text);
|
|
|
|
Chromium1.CreateBrowser;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.FormCloseQuery(Sender: TObject; var CanClose: boolean);
|
|
begin
|
|
CanClose := FCanClose;
|
|
|
|
if not(FClosing) then
|
|
begin
|
|
FClosing := True;
|
|
Visible := False;
|
|
Chromium1.CloseBrowser(True);
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.FormCreate(Sender: TObject);
|
|
begin
|
|
FPopUpRect := rect(0, 0, 0, 0);
|
|
FShowPopUp := False;
|
|
FResizing := False;
|
|
FPendingResize := False;
|
|
FCanClose := False;
|
|
FClosing := False;
|
|
FResizeCS := TCriticalSection.Create;
|
|
FBrowserCS := TCriticalSection.Create;
|
|
|
|
Panel1.CopyOriginalBuffer := True;
|
|
Panel1.OnQtKeyPress := @Panel1QTKeyPress;
|
|
Panel1.OnQtKeyRelease := @Panel1QTKeyRelease;
|
|
|
|
Application.OnActivate := @Application_OnActivate;
|
|
Application.OnDeactivate := @Application_OnDeactivate;
|
|
end;
|
|
|
|
procedure TMainForm.FormDestroy(Sender: TObject);
|
|
begin
|
|
if (FResizeCS <> nil) then FreeAndNil(FResizeCS);
|
|
if (FBrowserCS <> nil) then FreeAndNil(FBrowserCS);
|
|
end;
|
|
|
|
procedure TMainForm.FormHide(Sender: TObject);
|
|
begin
|
|
Chromium1.SetFocus(False);
|
|
Chromium1.WasHidden(True);
|
|
end;
|
|
|
|
procedure TMainForm.FormShow(Sender: TObject);
|
|
begin
|
|
Chromium1.WasHidden(False);
|
|
Chromium1.SetFocus(Panel1.Focused);
|
|
end;
|
|
|
|
procedure TMainForm.FormWindowStateChange(Sender: TObject);
|
|
begin
|
|
if (WindowState = wsMinimized) then
|
|
begin
|
|
Chromium1.SetFocus(False);
|
|
Chromium1.WasHidden(True);
|
|
end
|
|
else
|
|
begin
|
|
Chromium1.WasHidden(False);
|
|
Chromium1.SetFocus(Panel1.Focused);
|
|
end;
|
|
end;
|
|
{%Endregion}
|
|
|
|
{TApplication events}
|
|
{%Region}
|
|
procedure TMainForm.Application_OnActivate(Sender: TObject);
|
|
begin
|
|
Chromium1.SetFocus(Panel1.Focused);
|
|
end;
|
|
|
|
procedure TMainForm.Application_OnDeactivate(Sender: TObject);
|
|
begin
|
|
Chromium1.SetFocus(False);
|
|
end;
|
|
{%Endregion}
|
|
|
|
{Other events}
|
|
{%Region}
|
|
procedure TMainForm.AddressCbEnter(Sender: TObject);
|
|
begin
|
|
Chromium1.SetFocus(False);
|
|
end;
|
|
|
|
procedure TMainForm.GoBtnClick(Sender: TObject);
|
|
begin
|
|
FResizeCS.Acquire;
|
|
FResizing := False;
|
|
FPendingResize := False;
|
|
FResizeCS.Release;
|
|
|
|
Chromium1.LoadURL(UTF8Decode(AddressCb.Text))
|
|
end;
|
|
|
|
procedure TMainForm.GoBtnEnter(Sender: TObject);
|
|
begin
|
|
Chromium1.SetFocus(False);
|
|
end;
|
|
{%Endregion}
|
|
|
|
{Getters and setters}
|
|
{%Region}
|
|
function TMainForm.GetPanelCursor : TCursor;
|
|
begin
|
|
try
|
|
FBrowserCS.Acquire;
|
|
Result := FPanelCursor;
|
|
finally
|
|
FBrowserCS.Release;
|
|
end;
|
|
end;
|
|
|
|
function TMainForm.GetPanelHint : ustring;
|
|
begin
|
|
try
|
|
FBrowserCS.Acquire;
|
|
Result := FPanelHint;
|
|
finally
|
|
FBrowserCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.SetPanelCursor(aValue : TCursor);
|
|
begin
|
|
try
|
|
FBrowserCS.Acquire;
|
|
FPanelCursor := aValue;
|
|
finally
|
|
FBrowserCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.SetPanelHint(const aValue : ustring);
|
|
begin
|
|
try
|
|
FBrowserCS.Acquire;
|
|
FPanelHint := aValue;
|
|
finally
|
|
FBrowserCS.Release;
|
|
end;
|
|
end;
|
|
{%Endregion}
|
|
|
|
{Misc functions}
|
|
{%Region}
|
|
procedure TMainForm.SendCompMessage(aMsg : cardinal; aData: PtrInt);
|
|
begin
|
|
case aMsg of
|
|
CEF_AFTERCREATED : Application.QueueAsyncCall(@BrowserCreatedMsg, aData);
|
|
CEF_BEFORECLOSE : Application.QueueAsyncCall(@BrowserCloseFormMsg, aData);
|
|
CEF_PENDINGRESIZE : Application.QueueAsyncCall(@PendingResizeMsg, aData);
|
|
CEF_PENDINGINVALIDATE : Application.QueueAsyncCall(@PendingInvalidateMsg, aData);
|
|
CEF_UPDATE_CURSOR : Application.QueueAsyncCall(@PendingCursorUpdateMsg, aData);
|
|
CEF_UPDATE_HINT : Application.QueueAsyncCall(@PendingHintUpdateMsg, aData);
|
|
end;
|
|
end;
|
|
|
|
function TMainForm.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 TMainForm.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 TMainForm.DoResize;
|
|
begin
|
|
try
|
|
FResizeCS.Acquire;
|
|
|
|
if FResizing then
|
|
FPendingResize := True
|
|
else
|
|
if Panel1.BufferIsResized then
|
|
Chromium1.Invalidate(PET_VIEW)
|
|
else
|
|
begin
|
|
FResizing := True;
|
|
Chromium1.WasResized;
|
|
end;
|
|
finally
|
|
FResizeCS.Release;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.UpdatePanelOffset;
|
|
var
|
|
TempPoint : TPoint;
|
|
begin
|
|
try
|
|
FBrowserCS.Acquire;
|
|
TempPoint.x := 0;
|
|
TempPoint.y := 0;
|
|
FPanelOffset := Panel1.ClientToScreen(TempPoint);
|
|
finally
|
|
FBrowserCS.Release;
|
|
end;
|
|
end;
|
|
{%Endregion}
|
|
|
|
{Message handlers}
|
|
{%Region}
|
|
procedure TMainForm.BrowserCreatedMsg(Data: PtrInt);
|
|
begin
|
|
Caption := 'Simple OSR Browser';
|
|
AddressPnl.Enabled := True;
|
|
|
|
Chromium1.SetFocus(Panel1.Focused);
|
|
Chromium1.NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TMainForm.BrowserCloseFormMsg(Data: PtrInt);
|
|
begin
|
|
Close;
|
|
end;
|
|
|
|
procedure TMainForm.PendingResizeMsg(Data: PtrInt);
|
|
begin
|
|
DoResize;
|
|
end;
|
|
|
|
procedure TMainForm.PendingInvalidateMsg(Data: PtrInt);
|
|
begin
|
|
Panel1.Invalidate;
|
|
end;
|
|
|
|
procedure TMainForm.PendingCursorUpdateMsg(Data: PtrInt);
|
|
begin
|
|
Panel1.Cursor := PanelCursor;
|
|
end;
|
|
|
|
procedure TMainForm.PendingHintUpdateMsg(Data: PtrInt);
|
|
begin
|
|
Panel1.hint := UTF8Encode(PanelHint);
|
|
Panel1.ShowHint := (length(Panel1.hint) > 0);
|
|
end;
|
|
|
|
procedure TMainForm.WMMove(var Message: TLMMove);
|
|
begin
|
|
inherited;
|
|
UpdatePanelOffset;
|
|
Chromium1.NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TMainForm.WMSize(var Message: TLMSize);
|
|
begin
|
|
inherited;
|
|
UpdatePanelOffset;
|
|
Chromium1.NotifyMoveOrResizeStarted;
|
|
end;
|
|
|
|
procedure TMainForm.WMWindowPosChanged(var Message: TLMWindowPosChanged);
|
|
begin
|
|
inherited;
|
|
UpdatePanelOffset;
|
|
Chromium1.NotifyMoveOrResizeStarted;
|
|
end;
|
|
{%Endregion}
|
|
|
|
initialization
|
|
MainAppEvent := TEventObject.Create(nil, True, False, 'MainAppEvent');
|
|
|
|
finalization
|
|
if assigned(MainAppEvent) then
|
|
FreeAndNil(MainAppEvent);
|
|
|
|
end.
|
|
|