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Sciter.pas
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Sciter.pas
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{*******************************************************}
{ }
{ Sciter control }
{ Copyright (c) Dmitry Baranov }
{ }
{ This component uses Sciter Engine, }
{ copyright Terra Informatica Software, Inc. }
{ (http://terrainformatica.com/). }
{ }
{*******************************************************}
unit Sciter;
interface
uses
Windows, Forms, Messages, Controls, Classes, SysUtils, Contnrs, Variants, Math, Graphics, Generics.Collections,
SciterApi, TiScriptApi, SciterNative;
type
TSciter = class;
TElementCollection = class;
TElement = class;
IElement = interface;
IElementCollection = interface;
TElementHandlerCallback = function(Sender: Pointer; const Element: IElement): Boolean; { false - continue, true - stop }
{ Element events }
TElementOnMouseEventArgs = class
private
FButtons: MOUSE_BUTTONS;
FElement: IElement;
FEventType: MOUSE_EVENTS;
FHandled: Boolean;
FKeys: KEYBOARD_STATES;
FTarget: IElement;
FViewX: Integer;
FViewY: Integer;
FX: Integer;
FY: Integer;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: MOUSE_PARAMS);
public
destructor Destroy; override;
property Buttons: MOUSE_BUTTONS read FButtons;
property Element: IElement read FElement;
property EventType: MOUSE_EVENTS read FEventType;
property Handled: Boolean read FHandled write FHandled;
property Keys: KEYBOARD_STATES read FKeys;
property Target: IElement read FTarget;
property ViewX: Integer read FViewX;
property ViewY: Integer read FViewY;
property X: Integer read FX;
property Y: Integer read FY;
end;
TElementOnMouse = procedure(ASender: TObject; const Args: TElementOnMouseEventArgs) of object;
TElementOnKeyEventArgs = class
private
FElement: IElement;
FEventType: KEY_EVENTS;
FHandled: Boolean;
FKeyCode: Integer;
FKeys: KEYBOARD_STATES;
FTarget: IElement;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: KEY_PARAMS);
public
destructor Destroy; override;
property Element: IElement read FElement;
property EventType: KEY_EVENTS read FEventType;
property Handled: Boolean read FHandled write FHandled;
property KeyCode: Integer read FKeyCode;
property Keys: KEYBOARD_STATES read FKeys;
property Target: IElement read FTarget;
end;
TElementOnKey = procedure(ASender: TObject; const Args: TElementOnKeyEventArgs) of object;
TElementOnFocusEventArgs = class
private
FElement: IElement;
FEventType: FOCUS_EVENTS;
FHandled: Boolean;
FTarget: IElement;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: FOCUS_PARAMS);
public
destructor Destroy; override;
property Element: IElement read FElement;
property EventType: FOCUS_EVENTS read FEventType;
property Handled: Boolean read FHandled write FHandled;
property Target: IElement read FTarget;
end;
TElementOnFocus = procedure(ASender: TObject; const Args: TElementOnFocusEventArgs) of object;
TElementOnTimerEventArgs = class
private
FContinue: Boolean;
FElement: IElement;
FTimerId: UINT;
protected
constructor Create(const AThis: IElement; var params: TIMER_PARAMS);
public
destructor Destroy; override;
property Continue: Boolean read FContinue write FContinue;
property Element: IElement read FElement;
property TimerId: UINT read FTimerId;
end;
TElementOnTimer = procedure(ASender: TObject; const Args: TElementOnTimerEventArgs) of object;
TElementOnControlEventArgs = class
private
FElement: IElement;
FEventType: BEHAVIOR_EVENTS;
FHandled: Boolean;
FReason: Integer;
FSource: IElement;
FTarget: IElement;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: BEHAVIOR_EVENT_PARAMS);
public
destructor Destroy; override;
property Element: IElement read FElement;
property EventType: BEHAVIOR_EVENTS read FEventType write FEventType;
property Handled: Boolean read FHandled write FHandled;
property Reason: Integer read FReason;
property Source: IElement read FSource;
property Target: IElement read FTarget;
end;
TElementOnControlEvent = procedure(ASender: TObject; const Args: TElementOnControlEventArgs) of object;
TElementOnScrollEventArgs = class
private
FElement: IElement;
FEventType: SCROLL_EVENTS;
FHandled: Boolean;
FIsVertical: Boolean;
FPos: Integer;
FTarget: IElement;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: SCROLL_PARAMS);
public
destructor Destroy; override;
property Element: IElement read FElement;
property EventType: SCROLL_EVENTS read FEventType;
property Handled: Boolean read FHandled write FHandled;
property IsVertical: Boolean read FIsVertical;
property Pos: Integer read FPos;
property Target: IElement read FTarget;
end;
TElementOnScroll = procedure(ASender: TObject; const Args: TElementOnScrollEventArgs) of object;
TElementOnSizeEventArgs = class
private
FElement: IElement;
FHandled: Boolean;
protected
constructor Create(const ASelf: IElement);
public
destructor Destroy; override;
property Element: IElement read FElement;
property Handled: Boolean read FHandled write FHandled;
end;
TElementOnSize = procedure(ASender: TObject; const Args: TElementOnSizeEventArgs) of object;
TVariantArray = array of Variant;
TElementOnScriptingCallArgs = class
private
FArgs: TVariantArray;
FArgumentsCount: Integer;
FElement: IElement;
FHandled: Boolean;
FMethod: WideString;
FParams: PSCRIPTING_METHOD_PARAMS;
function GetArg(const Index: Integer): Variant;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: SCRIPTING_METHOD_PARAMS);
procedure WriteRetVal;
public
ReturnSciterValue: TSciterValue;
ReturnVariantValue: Variant;
destructor Destroy; override;
property Argument[const Index: Integer]: Variant read GetArg;
property ArgumentsCount: Integer read FArgumentsCount;
property Element: IElement read FElement;
property Handled: Boolean read FHandled write FHandled;
property Method: WideString read FMethod;
end;
TElementOnScriptingCall = procedure(ASender: TObject; const Args: TElementOnScriptingCallArgs) of object;
TElementOnGestureEventArgs = class
private
FCmd: GESTURE_CMD;
FDeltaTime: UINT;
FDeltaV: Double;
FDeltaXY: TSize;
FElement: IElement;
FFlags: Integer;
FHandled: Boolean;
FPos: TPoint;
FPosView: TPoint;
FTarget: IElement;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: GESTURE_PARAMS);
public
destructor Destroy; override;
property Cmd: GESTURE_CMD read FCmd;
property DeltaTime: UINT read FDeltaTime;
property DeltaV: Double read FDeltaV;
property DeltaXY: TSize read FDeltaXY;
property Element: IElement read FElement;
property Flags: Integer read FFlags;
property Handled: Boolean read FHandled write FHandled;
property Pos: TPoint read FPos;
property PosView: TPoint read FPosView;
property Target: IElement read FTarget;
end;
TElementOnGesture = procedure(ASender: TObject; const Args: TElementOnGestureEventArgs) of object;
TElementOnDataArrivedEventArgs = class
private
FDataType: Integer;
FElement: IElement;
FHandled: Boolean;
FInitiator: IElement;
FStatus: Integer;
FStream: TStream;
FUri: WideString;
protected
constructor Create(const Sciter: TSciter; const ASelf: IElement; var params: DATA_ARRIVED_PARAMS);
public
destructor Destroy; override;
property DataType: Integer read FDataType;
property Element: IElement read FElement;
property Handled: Boolean read FHandled write FHandled;
property Initiator: IElement read FInitiator;
property Status: Integer read FStatus;
property Stream: TStream read FStream;
property Uri: WideString read FUri;
end;
TElementOnDataArrived = procedure(ASender: TObject; const Args: TElementOnDataArrivedEventArgs) of object;
{ Sciter events }
TSciterOnMessageEventArgs = class
private
FMessage: WideString;
FSeverity: OUTPUT_SEVERITY;
public
property Message: WideString read FMessage;
property Severity: OUTPUT_SEVERITY read FSeverity;
end;
TElementOnBehaviorEventArgs = class
private
FElement: IElement;
FHandled: Boolean;
FSciter: TSciter;
protected
constructor Create(ASciter: TSciter; const ASelf: IElement);
public
destructor Destroy; override;
property Element: IElement read FElement;
property Handled: Boolean read FHandled write FHandled;
property Sciter: TSciter read FSciter;
end;
TElementOnBehaviorEvent = procedure(ASender: TObject; const Args: TElementOnBehaviorEventArgs) of object;
TSciterOnMessage = procedure(ASender: TObject; const Args: TSciterOnMessageEventArgs) of object;
TSciterOnLoadData = procedure(ASender: TObject; const url: WideString; resType: SciterResourceType;
requestId: Pointer; out discard: Boolean; out delay: Boolean; out myself: Boolean) of object;
TSciterOnDataLoaded = procedure(ASender: TObject; const url: WideString; resType: SciterResourceType;
data: PByte; dataLength: Integer; status: Integer;
requestId: Cardinal) of object;
TSciterOnFocus = procedure(ASender: TObject) of object;
TSciterOnDocumentCompleteEventArgs = class
private
FUrl: WideString;
public
property Url: WideString read FUrl;
end;
TSciterOnDocumentComplete = procedure(ASender: TObject; const Args: TSciterOnDocumentCompleteEventArgs) of object;
IElementEvents = interface
['{CC651703-89C1-411D-875E-735D48D6E311}']
function GetOnControlEvent: TElementOnControlEvent;
function GetOnDataArrived: TElementOnDataArrived;
function GetOnFocus: TElementOnFocus;
function GetOnGesture: TElementOnGesture;
function GetOnKey: TElementOnKey;
function GetOnMouse: TElementOnMouse;
function GetOnScriptingCall: TElementOnScriptingCall;
function GetOnScroll: TElementOnScroll;
function GetOnSize: TElementOnSize;
function GetOnTimer: TElementOnTimer;
procedure SetOnControlEvent(const Value: TElementOnControlEvent);
procedure SetOnDataArrived(const Value: TElementOnDataArrived);
procedure SetOnFocus(const Value: TElementOnFocus);
procedure SetOnGesture(const Value: TElementOnGesture);
procedure SetOnKey(const Value: TElementOnKey);
procedure SetOnMouse(const Value: TElementOnMouse);
procedure SetOnScriptingCall(const Value: TElementOnScriptingCall);
procedure SetOnScroll(const Value: TElementOnScroll);
procedure SetOnSize(const Value: TElementOnSize);
procedure SetOnTimer(const Value: TElementOnTimer);
property OnControlEvent: TElementOnControlEvent read GetOnControlEvent write SetOnControlEvent;
property OnDataArrived: TElementOnDataArrived read GetOnDataArrived write SetOnDataArrived;
property OnFocus: TElementOnFocus read GetOnFocus write SetOnFocus;
property OnGesture: TElementOnGesture read GetOnGesture write SetOnGesture;
property OnKey: TElementOnKey read GetOnKey write SetOnKey;
property OnMouse: TElementOnMouse read GetOnMouse write SetOnMouse;
property OnScriptingCall: TElementOnScriptingCall read GetOnScriptingCall write SetOnScriptingCall;
property OnScroll: TElementOnScroll read GetOnScroll write SetOnScroll;
property OnSize: TElementOnSize read GetOnSize write SetOnSize;
property OnTimer: TElementOnTimer read GetOnTimer write SetOnTimer;
end;
{ For internal use }
IElementEventsFilter = interface
['{136A3D8C-2D4E-4902-8252-2373D8E61DEE}']
function GetControlEventsFilter: BEHAVIOR_EVENTS;
function GetKeyFilter: KEY_EVENTS;
function GetMouseFilter: MOUSE_EVENTS;
procedure SetControlEventsFilter(Evts: BEHAVIOR_EVENTS);
procedure SetKeyFilter(Evts: KEY_EVENTS);
procedure SetMouseFilter(Evts: MOUSE_EVENTS);
property ControlEventsFilter: BEHAVIOR_EVENTS read GetControlEventsFilter write SetControlEventsFilter;
property KeyFilter: KEY_EVENTS read GetKeyFilter write SetKeyFilter;
property MouseFilter: MOUSE_EVENTS read GetMouseFilter write SetMouseFilter;
end;
IElement = interface
['{E2C542D1-5B7B-4513-BFBC-7B0DD9FB04DE}']
procedure AppendChild(const Element: IElement);
function AttachHwndToElement(h: HWND): boolean;
function Call(const Method: WideString; const Args: Array of Variant; Global: Boolean = False): Variant;
function CloneElement: IElement;
function CombineURL(const Url: WideString): WideString;
function CreateElement(const Tag: WideString; const Text: WideString): IElement;
procedure Delete;
procedure Detach;
function EqualsTo(const Element: IElement): WordBool;
function FindNearestParent(const Selector: WideString): IElement;
function ForAll(const Selector: WideString; Handler: TElementHandlerCallback): IElement;
function GetAttr(const AttrName: WideString): WideString;
function GetAttrCount: Integer;
function GetAttributeName(Index: Integer): WideString;
function GetAttributeValue(Index: Integer): WideString;
function GetChild(Index: Integer): IElement;
function GetChildrenCount: Integer;
function GetEnabled: boolean;
function GetHandle: HELEMENT;
function GetHWND: HWND;
function GetID: WideString;
function GetIndex: Integer;
function GetInnerHtml: WideString;
function GetLocation(area: ELEMENT_AREAS = ROOT_RELATIVE): TRect;
function GetOuterHtml: WideString;
function GetParent: IElement;
function GetState: Integer;
function GetStyleAttr(const AttrName: WideString): WideString;
function GetTag: WideString;
function GetText: WideString;
function GetValue: Variant;
function GetVisible: boolean;
procedure InsertAfter(const Html: WideString);
procedure InsertBefore(const Html: WideString);
procedure InsertElement(const Child: IElement; const Index: Integer);
function IsValid: Boolean;
function NextSibling: IElement;
function PostEvent(EventCode: BEHAVIOR_EVENTS): Boolean;
function PrevSibling: IElement;
procedure RemoveChildren;
procedure Request(const Url: WideString; const RequestType: REQUEST_TYPE);
procedure ScrollToView;
function Select(const Selector: WideString): IElement;
function SelectAll(const Selector: WideString): IElementCollection;
function SendEvent(EventCode: BEHAVIOR_EVENTS): Boolean;
procedure SetAttr(const AttrName: WideString; const Value: WideString);
procedure SetID(const Value: WideString);
procedure SetInnerHtml(const Value: WideString);
procedure SetOuterHtml(const Value: WideString);
procedure SetState(const Value: Integer);
procedure SetStyleAttr(const AttrName: WideString; const Value: WideString);
procedure SetText(const Value: WideString);
function SetTimer(const Milliseconds: UINT): UINT;
procedure SetValue(Value: Variant);
procedure StopTimer;
function SubscribeControlEvents(const Selector: WideString; const Event: BEHAVIOR_EVENTS; const Handler: TElementOnControlEvent): IElement;
function SubscribeDataArrived(const Selector: WideString; const Handler: TElementOnDataArrived): IElement;
function SubscribeFocus(const Selector: WideString; const Handler: TElementOnFocus): IElement;
function SubscribeGesture(const Selector: WideString; const Handler: TElementOnGesture): IElement;
function SubscribeKey(const Selector: WideString; const Event: KEY_EVENTS; const Handler: TElementOnKey): IElement;
function SubscribeMouse(const Selector: WideString; const Event: MOUSE_EVENTS; const Handler: TElementOnMouse): IElement;
function SubscribeScriptingCall(const Selector: WideString; const Handler: TElementOnScriptingCall): IElement;
function SubscribeScroll(const Selector: WideString; const Handler: TElementOnScroll): IElement;
function SubscribeSize(const Selector: WideString; const Handler: TElementOnSize): IElement;
function SubscribeTimer(const Selector: WideString; const Handler: TElementOnTimer): IElement;
procedure Swap(const Element: IElement);
function TryCall(const Method: WideString; const Args: array of Variant; out RetVal: Variant; Global: Boolean = False): Boolean;
procedure Update;
property Attr[const AttrName: WideString]: WideString read GetAttr write SetAttr;
property AttrCount: Integer read GetAttrCount;
property ChildrenCount: Integer read GetChildrenCount;
property Enabled: boolean read GetEnabled;
property Handle: HELEMENT read GetHandle;
property ID: WideString read GetID write SetID;
property Index: Integer read GetIndex;
property InnerHtml: WideString read GetInnerHtml write SetInnerHtml;
property OuterHtml: WideString read GetOuterHtml write SetOuterHtml;
property Parent: IElement read GetParent;
property State: Integer read GetState write SetState;
property StyleAttr[const AttrName: WideString]: WideString read GetStyleAttr write SetStyleAttr;
property Tag: WideString read GetTag;
property Text: WideString read GetText write SetText;
property Value: Variant read GetValue write SetValue;
property Visible: Boolean read GetVisible;
end;
{ for internal use to emulate C++ multiple inheritance }
_ISciterEventHandler = interface
['{327EC89D-6ECB-4FFE-8F69-06589EBF8594}']
function HandleBehaviorAttach: BOOL;
function HandleBehaviorDetach: BOOL;
function HandleControlEvent(var params: BEHAVIOR_EVENT_PARAMS): BOOL;
function HandleDataArrived(var params: DATA_ARRIVED_PARAMS): BOOL;
function HandleFocus(var params: FOCUS_PARAMS): BOOL;
function HandleGesture(var params: GESTURE_PARAMS): BOOL;
function HandleInitialization(var params: INITIALIZATION_PARAMS): BOOL;
function HandleKey(var params: KEY_PARAMS): BOOL;
function HandleMethodCallEvents(var params: METHOD_PARAMS): BOOL;
function HandleMouse(var params: MOUSE_PARAMS): BOOL;
function HandleScriptingCall(var params: SCRIPTING_METHOD_PARAMS): BOOL;
function HandleScrollEvents(var params: SCROLL_PARAMS): BOOL;
function HandleSize: BOOL;
function HandleTimer(var params: TIMER_PARAMS): BOOL;
function QuerySubscriptionEvents: EVENT_GROUPS;
end;
IElementCollection = interface
['{2E262CE3-43DE-4266-9424-EBA0241F77F8}']
function GetCount: Integer;
function GetItem(const Index: Integer): IElement;
procedure RemoveAll;
property Count: Integer read GetCount;
property Item[const Index: Integer]: IElement read GetItem; default;
end;
IElements = type IElementCollection;
TElement = class(TInterfacedObject, IElement, IElementEvents, IElementEventsFilter, _ISciterEventHandler)
private
FAttrAnsiName: AnsiString;
FAttrName: WideString;
FAttrValue: WideString;
FELEMENT: HELEMENT;
FEventGroups: EVENT_GROUPS;
FFilterControlEvents: BEHAVIOR_EVENTS;
FFilterKey: KEY_EVENTS;
FFilterMouse: MOUSE_EVENTS;
FHChild: HELEMENT;
FHtml: WideString;
FOnBehaviorEvent: TElementOnBehaviorEvent;
FOnControlEvent: TElementOnControlEvent;
FOnDataArrived: TElementOnDataArrived;
FOnFocus: TElementOnFocus;
FOnGesture: TElementOnGesture;
FOnKey: TElementOnKey;
FOnMouse: TElementOnMouse;
FOnScriptingCall: TElementOnScriptingCall;
FOnScroll: TElementOnScroll;
FOnSize: TElementOnSize;
FOnTimer: TElementOnTimer;
FSciter: TSciter;
FStyleAttrName: WideString;
FStyleAttrValue: WideString;
FTag: WideString;
FText: WideString;
function GetAttr(const AttrName: WideString): WideString;
function GetAttrCount: Integer;
function GetChildrenCount: Integer;
function GetControlEventsFilter: BEHAVIOR_EVENTS;
function GetEnabled: boolean;
function GetHandle: HELEMENT;
function GetID: WideString;
function GetIndex: Integer;
function GetInnerHtml: WideString;
function GetKeyFilter: KEY_EVENTS;
function GetMouseFilter: MOUSE_EVENTS;
function GetOnControlEvent: TElementOnControlEvent;
function GetOnDataArrived: TElementOnDataArrived;
function GetOnFocus: TElementOnFocus;
function GetOnGesture: TElementOnGesture;
function GetOnKey: TElementOnKey;
function GetOnMouse: TElementOnMouse;
function GetOnScriptingCall: TElementOnScriptingCall;
function GetOnScroll: TElementOnScroll;
function GetOnSize: TElementOnSize;
function GetOnTimer: TElementOnTimer;
function GetOuterHtml: WideString;
function GetParent: IElement;
function GetState: Integer;
function GetStyleAttr(const AttrName: WideString): WideString;
function GetTag: WideString;
function GetVisible: boolean;
function HandleBehaviorAttach: BOOL;
function HandleBehaviorDetach: BOOL;
function HandleControlEvent(var params: BEHAVIOR_EVENT_PARAMS): BOOL;
function HandleDataArrived(var params: DATA_ARRIVED_PARAMS): BOOL;
function HandleFocus(var params: FOCUS_PARAMS): BOOL;
function HandleGesture(var params: GESTURE_PARAMS): BOOL;
function HandleInitialization(var params: INITIALIZATION_PARAMS): BOOL;
function HandleKey(var params: KEY_PARAMS): BOOL;
function HandleMethodCallEvents(var params: METHOD_PARAMS): BOOL;
function HandleMouse(var params: MOUSE_PARAMS): BOOL;
function HandleScriptingCall(var params: SCRIPTING_METHOD_PARAMS): BOOL;
function HandleScrollEvents(var params: SCROLL_PARAMS): BOOL;
function HandleSize: BOOL;
function HandleTimer(var params: TIMER_PARAMS): BOOL;
procedure SetAttr(const AttrName: WideString; const Value: WideString);
procedure SetControlEventsFilter(Evts: BEHAVIOR_EVENTS);
procedure SetID(const Value: WideString);
procedure SetInnerHtml(const Value: WideString);
procedure SetKeyFilter(Evts: KEY_EVENTS);
procedure SetMouseFilter(Evts: MOUSE_EVENTS);
procedure SetOnControlEvent(const Value: TElementOnControlEvent);
procedure SetOnDataArrived(const Value: TElementOnDataArrived);
procedure SetOnFocus(const Value: TElementOnFocus);
procedure SetOnGesture(const Value: TElementOnGesture);
procedure SetOnKey(const Value: TElementOnKey);
procedure SetOnMouse(const Value: TElementOnMouse);
procedure SetOnScriptingCall(const Value: TElementOnScriptingCall);
procedure SetOnScroll(const Value: TElementOnScroll);
procedure SetOnSize(const Value: TElementOnSize);
procedure SetOnTimer(const Value: TElementOnTimer);
procedure SetOuterHtml(const Value: WideString);
procedure SetState(const Value: Integer);
procedure SetStyleAttr(const AttrName: WideString; const Value: WideString);
protected
constructor Create(ASciter: TSciter; h: HELEMENT); virtual;
procedure DoBehaviorAttach(const Args: TElementOnBehaviorEventArgs); virtual;
procedure DoBehaviorDetach(const Args: TElementOnBehaviorEventArgs); virtual;
procedure DoControlEvents(const Args: TElementOnControlEventArgs); virtual;
procedure DoDataArrived(const Args: TElementOnDataArrivedEventArgs); virtual;
procedure DoFocus(const Args: TElementOnFocusEventArgs); virtual;
procedure DoGesture(const Args: TElementOnGestureEventArgs); virtual;
procedure DoKey(const Args: TElementOnKeyEventArgs); virtual;
procedure DoMouse(const Args: TElementOnMouseEventArgs); virtual;
procedure DoScriptingCall(const Args: TElementOnScriptingCallArgs); virtual;
procedure DoScroll(const Args: TElementOnScrollEventArgs); virtual;
procedure DoSize(const Args: TElementOnSizeEventArgs); virtual;
procedure DoTimer(const Args: TElementOnTimerEventArgs); virtual;
function GetText: WideString; virtual;
function GetValue: Variant; virtual;
function QuerySubscriptionEvents: EVENT_GROUPS; virtual;
procedure SetText(const Value: WideString); virtual;
procedure SetValue(Value: Variant); virtual;
property Sciter: TSciter read FSciter;
public
destructor Destroy; override;
procedure AppendChild(const Element: IElement);
function AttachHwndToElement(h: HWND): boolean;
class function BehaviorName: AnsiString; virtual;
function Call(const Method: WideString; const Args: Array of Variant; Global: Boolean = False): Variant;
procedure ClearAttributes;
function CloneElement: IElement;
function CombineURL(const Url: WideString): WideString;
function CreateElement(const Tag: WideString; const Text: WideString): IElement;
procedure Delete;
procedure Detach;
function EqualsTo(const Element: IElement): WordBool;
function FindNearestParent(const Selector: WideString): IElement;
function ForAll(const Selector: WideString; Handler: TElementHandlerCallback): IElement;
function GetAttributeName(Index: Integer): WideString;
function GetAttributeValue(Index: Integer): WideString; overload;
function GetAttributeValue(const Name: WideString): WideString; overload;
function GetChild(Index: Integer): IElement;
function GetHWND: HWND;
function GetLocation(area: ELEMENT_AREAS = ROOT_RELATIVE): TRect;
procedure InsertAfter(const Html: WideString);
procedure InsertBefore(const Html: WideString);
procedure InsertElement(const Child: IElement; const AIndex: Integer);
function IsValid: Boolean;
function NextSibling: IElement;
function PostEvent(EventCode: BEHAVIOR_EVENTS): Boolean;
function PrevSibling: IElement;
procedure RemoveChildren;
procedure Request(const Url: WideString; const RequestType: REQUEST_TYPE);
procedure ScrollToView;
function Select(const Selector: WideString): IElement;
function SelectAll(const Selector: WideString): IElementCollection;
function SendEvent(EventCode: BEHAVIOR_EVENTS): Boolean;
function SetTimer(const Milliseconds: UINT): UINT;
procedure StopTimer;
function SubscribeControlEvents(const Selector: WideString; const Event: BEHAVIOR_EVENTS; const Handler: TElementOnControlEvent): IElement;
function SubscribeDataArrived(const Selector: WideString; const Handler: TElementOnDataArrived): IElement;
function SubscribeFocus(const Selector: WideString; const Handler: TElementOnFocus): IElement;
function SubscribeGesture(const Selector: WideString; const Handler: TElementOnGesture): IElement;
function SubscribeKey(const Selector: WideString; const Event: KEY_EVENTS; const Handler: TElementOnKey): IElement;
function SubscribeMouse(const Selector: WideString; const Event: MOUSE_EVENTS; const Handler: TElementOnMouse): IElement;
function SubscribeScriptingCall(const Selector: WideString; const Handler: TElementOnScriptingCall): IElement;
function SubscribeScroll(const Selector: WideString; const Handler: TElementOnScroll): IElement;
function SubscribeSize(const Selector: WideString; const Handler: TElementOnSize): IElement;
function SubscribeTimer(const Selector: WideString; const Handler: TElementOnTimer): IElement;
procedure Swap(const Element: IElement);
function TryCall(const Method: WideString; const Args: array of Variant; out RetVal: Variant; Global: Boolean = False): Boolean;
procedure Update;
property Attr[const AttrName: WideString]: WideString read GetAttr write SetAttr;
property AttrCount: Integer read GetAttrCount;
property ChildrenCount: Integer read GetChildrenCount;
property Enabled: boolean read GetEnabled;
property Handle: HELEMENT read GetHandle;
property ID: WideString read GetID write SetID;
property Index: Integer read GetIndex;
property InnerHtml: WideString read GetInnerHtml write SetInnerHtml;
property OuterHtml: WideString read GetOuterHtml write SetOuterHtml;
property Parent: IElement read GetParent;
property State: Integer read GetState write SetState;
property StyleAttr[const AttrName: WideString]: WideString read GetStyleAttr write SetStyleAttr;
property Tag: WideString read GetTag;
property Text: WideString read GetText write SetText;
property Value: Variant read GetValue write SetValue;
property Visible: boolean read GetVisible;
property OnBehaviorEvent: TElementOnBehaviorEvent read FOnBehaviorEvent write FOnBehaviorEvent;
property OnControlEvent: TElementOnControlEvent read GetOnControlEvent write SetOnControlEvent;
property OnDataArrived: TElementOnDataArrived read GetOnDataArrived write SetOnDataArrived;
property OnFocus: TElementOnFocus read GetOnFocus write SetOnFocus;
property OnGesture: TElementOnGesture read GetOnGesture write SetOnGesture;
property OnKey: TElementOnKey read GetOnKey write SetOnKey;
property OnMouse: TElementOnMouse read GetOnMouse write SetOnMouse;
property OnScriptingCall: TElementOnScriptingCall read GetOnScriptingCall write SetOnScriptingCall;
property OnScroll: TElementOnScroll read GetOnScroll write SetOnScroll;
property OnSize: TElementOnSize read GetOnSize write SetOnSize;
property OnTimer: TElementOnTimer read GetOnTimer write SetOnTimer;
end;
TElementClass = class of TElement;
TElementList = class(TObjectList)
private
function GetItem(const Index: Integer): TElement;
protected
procedure Add(const Element: TElement);
procedure Remove(const Element: TElement);
property Item[const Index: Integer]: TElement read GetItem; default;
end;
TElementCollection = class(TInterfacedObject, IElementCollection)
private
FList: TObjectList;
FSciter: TSciter;
protected
constructor Create(ASciter: TSciter);
function GetCount: Integer;
function GetItem(const Index: Integer): IElement;
property Sciter: TSciter read FSciter;
public
destructor Destroy; override;
procedure Add(const Item: TElement);
procedure RemoveAll;
property Count: Integer read GetCount;
property Item[const Index: Integer]: IElement read GetItem; default;
end;
TSciterEventMapRule = class;
TSciterEventMap = class(TOwnedCollection)
private
function GetItem(AIndex: integer): TSciterEventMapRule;
procedure SetItem(AIndex: integer;
const Value: TSciterEventMapRule);
public
procedure Assign(Source: TPersistent); override;
property Items[AIndex: integer] : TSciterEventMapRule read GetItem write SetItem; default;
end;
TSciterEventMapRule = class(TCollectionItem, IElementEvents)
private
FOnControlEvent: TElementOnControlEvent;
FOnDataArrived: TElementOnDataArrived;
FOnFocus: TElementOnFocus;
FOnGesture: TElementOnGesture;
FOnKey: TElementOnKey;
FOnMouse: TElementOnMouse;
FOnScriptingCall: TElementOnScriptingCall;
FOnScroll: TElementOnScroll;
FOnSize: TElementOnSize;
FOnTimer: TElementOnTimer;
FSelector: WideString;
function GetOnControlEvent: TElementOnControlEvent;
function GetOnDataArrived: TElementOnDataArrived;
function GetOnFocus: TElementOnFocus;
function GetOnGesture: TElementOnGesture;
function GetOnKey: TElementOnKey;
function GetOnMouse: TElementOnMouse;
function GetOnScriptingCall: TElementOnScriptingCall;
function GetOnScroll: TElementOnScroll;
function GetOnSize: TElementOnSize;
function GetOnTimer: TElementOnTimer;
function QueryInterface(const IID: TGUID; out Obj): HResult; stdcall;
procedure SetOnControlEvent(const Value: TElementOnControlEvent);
procedure SetOnDataArrived(const Value: TElementOnDataArrived);
procedure SetOnFocus(const Value: TElementOnFocus);
procedure SetOnGesture(const Value: TElementOnGesture);
procedure SetOnKey(const Value: TElementOnKey);
procedure SetOnMouse(const Value: TElementOnMouse);
procedure SetOnScriptingCall(const Value: TElementOnScriptingCall);
procedure SetOnScroll(const Value: TElementOnScroll);
procedure SetOnSize(const Value: TElementOnSize);
procedure SetOnTimer(const Value: TElementOnTimer);
procedure SetSelector(const Value: WideString);
procedure Setup(const Element: IElement);
function _AddRef: Integer; stdcall;
function _Release: Integer; stdcall;
protected
function GetDisplayName: string; override;
public
procedure Assign(Source: TPersistent); override;
published
property Selector: WideString read FSelector write SetSelector;
property OnControlEvent: TElementOnControlEvent read GetOnControlEvent write SetOnControlEvent;
property OnDataArrived: TElementOnDataArrived read GetOnDataArrived write SetOnDataArrived;
property OnFocus: TElementOnFocus read GetOnFocus write SetOnFocus;
property OnGesture: TElementOnGesture read GetOnGesture write SetOnGesture;
property OnKey: TElementOnKey read GetOnKey write SetOnKey;
property OnMouse: TElementOnMouse read GetOnMouse write SetOnMouse;
property OnScriptingCall: TElementOnScriptingCall read GetOnScriptingCall write SetOnScriptingCall;
property OnScroll: TElementOnScroll read GetOnScroll write SetOnScroll;
property OnSize: TElementOnSize read GetOnSize write SetOnSize;
property OnTimer: TElementOnTimer read GetOnTimer write SetOnTimer;
end;
TSciter = class(TCustomControl, _ISciterEventHandler)
private
FBaseUrl: WideString;
FEventList: TInterfaceList;
FEventMap: TSciterEventMap;
FHomeURL: WideString;
FHtml: WideString;
FManagedElements: TElementList;
FOnFocus: TSciterOnFocus;
FOnDataLoaded: TSciterOnDataLoaded;
FOnDocumentComplete: TSciterOnDocumentComplete;
FOnEngineDestroyed: TNotifyEvent;
FOnHandleCreated: TNotifyEvent;
FOnLoadData: TSciterOnLoadData;
FOnMessage: TSciterOnMessage;
FOnScriptingCall: TElementOnScriptingCall;
FOnViewControlEvent: TElementOnControlEvent;
FOnViewFocus: TElementOnFocus;
FOnViewGesture: TElementOnGesture;
FOnViewKey: TElementOnKey;
FOnViewMouse: TElementOnMouse;
FOnViewScroll: TElementOnScroll;
FOnViewSize: TElementOnSize;
FUrl: WideString;
procedure BindStoredEventHandlers;
function GetHtml: WideString;
function GetHVM: HVM;
function GetRoot: IElement;
function GetVersion: WideString;
function GetFocused: IElement;
function HandleBehaviorAttach: BOOL;
function HandleBehaviorDetach: BOOL;
function HandleControlEvent(var params: BEHAVIOR_EVENT_PARAMS): BOOL;
function HandleDataArrived(var params: DATA_ARRIVED_PARAMS): BOOL;
function HandleDocumentComplete(const Url: WideString): BOOL; virtual;
function HandleFocus(var params: FOCUS_PARAMS): BOOL;
function HandleGesture(var params: GESTURE_PARAMS): BOOL;
function HandleInitialization(var params: INITIALIZATION_PARAMS): BOOL;
function HandleKey(var params: KEY_PARAMS): BOOL;
function HandleMethodCallEvents(var params: METHOD_PARAMS): BOOL;
function HandleMouse(var params: MOUSE_PARAMS): BOOL;
function HandleScriptingCall(var params: SCRIPTING_METHOD_PARAMS): BOOL;
function HandleScrollEvents(var params: SCROLL_PARAMS): BOOL;
function HandleSize: BOOL;
function HandleTimer(var params: TIMER_PARAMS): BOOL;
function MainWindowHook(var Message: TMessage): Boolean;
function QuerySubscriptionEvents: EVENT_GROUPS;
procedure SetOnMessage(const Value: TSciterOnMessage);
protected
procedure CreateParams(var Params: TCreateParams); override;
procedure CreateWindowHandle(const Params: TCreateParams); override;
procedure CreateWnd; override;
function DesignMode: boolean;
procedure DestroyWnd; override;
procedure DoDocumentComplete(const Args: TSciterOnDocumentCompleteEventArgs); virtual;
procedure DoViewControlEvent(const Args: TElementOnControlEventArgs); virtual;
procedure DoViewFocus(const Args: TElementOnFocusEventArgs); virtual;
procedure DoViewGesture(const Args: TElementOnGestureEventArgs); virtual;
procedure DoViewKey(const Args: TElementOnKeyEventArgs); virtual;
procedure DoViewMouse(const Args: TElementOnMouseEventArgs); virtual;
procedure DoViewScroll(const Args: TElementOnScrollEventArgs); virtual;
procedure DoViewSize(const Args: TElementOnSizeEventArgs); virtual;
function HandleAttachBehavior(var data: SCN_ATTACH_BEHAVIOR): UINT; virtual;
function HandleDataLoaded(var data: SCN_DATA_LOADED): UINT; virtual;
function HandleEngineDestroyed(var data: SCN_ENGINE_DESTROYED): UINT; virtual;
function HandleLoadData(var data: SCN_LOAD_DATA): UINT; virtual;
function HandlePostedNotification(var data: SCN_POSTED_NOTIFICATION): UINT; virtual;
procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
procedure Paint; override;
procedure SetName(const NewName: TComponentName); override;
procedure WndProc(var Message: TMessage); override;
property ManagedElements: TElementList read FManagedElements;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
function RecordToVar<T>(const Obj: T): Variant;
function SymbolToVar(const Symbol: String): Variant;
function AppendMasterCSS(const CSSString: UTF8String): BOOL;
function SetMasterCSS(const CSSString: UTF8String): BOOL;
function Call(const FunctionName: WideString; const Args: array of Variant): Variant;
procedure Fire(he: HELEMENT; cmd: UINT; data: Variant; async: Boolean = True);
procedure FireRoot(cmd: UINT; data: Variant; async: Boolean = True); overload;
procedure FireRoot(cmd: UINT; async: Boolean = True); overload;
procedure DataReady(const uri: WideString; data: PByte; dataLength: UINT);
procedure DataReadyAsync(const uri: WideString; data: PByte; dataLength: UINT; requestId: LPVOID);
function Eval(const Script: WideString): Variant;
function FilePathToURL(const FileName: String): String;
function FindElement(Point: TPoint): IElement;
function FindElement2(X, Y: Integer): IElement;
procedure GC;
function GetElementByHandle(Handle: NativeInt): IElement;
function GetMinHeight(Width: Integer): Integer;
function GetMinWidth: Integer;
function JsonToSciterValue(const Json: WideString): TSciterValue;
function JsonToTiScriptValue(const Json: WideString): tiscript_object;
procedure LoadHtml(const Html: WideString; const BaseURL: WideString);
function LoadURL(const URL: WideString; Async: Boolean = True { reserved }): Boolean;
function LoadPackedResource(const ResName: String; const ResType: PWideChar): Boolean;
function GetPackedItem(const ResName: String; const FileName: PWideChar; var mem: TMemoryStream): Boolean;
procedure MouseWheelHandler(var Message: TMessage); override;
procedure Println(const Message: WideString; const Args: Array of const);
function HasComObject(const Name: WideString): Boolean;
procedure RegisterComObject(const Name: WideString; const Obj: Variant); overload;
procedure RegisterComObject(const Name: WideString; const Obj: IDispatch); overload;
function RegisterNativeClass(const ClassInfo: ISciterClassInfo; ThrowIfExists: Boolean; ReplaceClassDef: Boolean = False): tiscript_class; overload;
function RegisterNativeClass(const ClassDef: ptiscript_class_def; ThrowIfExists: Boolean; ReplaceClassDef: Boolean { reserved } = False): tiscript_class; overload;
procedure RegisterNativeFunction(const Name: WideString; Handler: ptiscript_method; ns: tiscript_value = 0);
procedure RegisterNativeFunctionTag(const Name: WideString; Handler: ptiscript_tagged_method; ns: tiscript_value; Tag: Pointer);
class procedure RegisterNativeFunctor(var OutVal: TSciterValue; Name: PWideChar; Handler: Pointer; Tag: Pointer = nil);
procedure SaveToFile(const FileName: WideString; const Encoding: WideString = 'UTF-8' { reserved, TODO:} );
function SciterValueToJson(Obj: TSciterValue): WideString;
function Select(const Selector: WideString): IElement;
function SelectAll(const Selector: WideString): IElementCollection;
procedure SetHomeURL(const URL: WideString);
function SetMediaType(const MediaType: WideString): Boolean;
procedure SetObject(const Name: WideString; const Json: WideString);
procedure SetOption(const Key: SCITER_RT_OPTIONS; const Value: UINT_PTR);
procedure ShowInspector(const Element: IElement = nil);
function TiScriptCall(const ObjName: WideString; const Method: WideString; const Args: array of Variant): Variant;
function TiScriptValueToJson(Obj: tiscript_value): WideString;
function TryCall(const FunctionName: WideString; const Args: array of Variant): boolean; overload;
function TryCall(const FunctionName: WideString; const Args: array of Variant; out RetVal: Variant): boolean; overload;
procedure UnsubscribeAll;
procedure UpdateWindow;
procedure Refresh;
property Html: WideString read GetHtml;
property Root: IElement read GetRoot;
property Focused: IElement read GetFocused;
property Version: WideString read GetVersion;
property VM: HVM read GetHVM;
published
property Action;
property Align;
property Anchors;
property BevelEdges;
property BevelInner;
property BevelKind;
property BevelOuter;
property BevelWidth;
property BiDiMode;
property BorderWidth;
property Constraints;
property DragCursor;
property DragKind;
property DragMode;
property Enabled;
property EventMap: TSciterEventMap read FEventMap write FEventMap;
property Font;
property OnClick;
property OnContextPopup;
property OnDragDrop;
property OnDragOver;
property OnEndDock;
property OnEndDrag;
property OnEnter;
property OnExit;
property OnKeyDown;
property OnKeyPress;
property OnKeyUp;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnStartDock;
property OnStartDrag;
property ParentBiDiMode;
property ParentFont;
property ParentShowHint;
property PopupMenu;
property ShowHint;
property TabOrder;
property TabStop default False;
property Visible;
property OnFocus: TSciterOnFocus read FOnFocus write FOnFocus;
property OnDataLoaded: TSciterOnDataLoaded read FOnDataLoaded write FOnDataLoaded;
property OnDocumentComplete: TSciterOnDocumentComplete read FOnDocumentComplete write FOnDocumentComplete;
property OnEngineDestroyed: TNotifyEvent read FOnEngineDestroyed write FOnEngineDestroyed;
property OnHandleCreated: TNotifyEvent read FOnHandleCreated write FOnHandleCreated;
property OnLoadData: TSciterOnLoadData read FOnLoadData write FOnLoadData;
property OnMessage: TSciterOnMessage read FOnMessage write SetOnMessage;
property OnScriptingCall: TElementOnScriptingCall read FOnScriptingCall write FOnScriptingCall;
property OnViewControlEvent: TElementOnControlEvent read FOnViewControlEvent write FOnViewControlEvent;
property OnViewFocus: TElementOnFocus read FOnViewFocus write FOnViewFocus;
property OnViewGesture: TElementOnGesture read FOnViewGesture write FOnViewGesture;
property OnViewKey: TElementOnKey read FOnViewKey write FOnViewKey;
property OnViewMouse: TElementOnMouse read FOnViewMouse write FOnViewMouse;
property OnViewScroll: TElementOnScroll read FOnViewScroll write FOnViewScroll;
property OnViewSize: TElementOnSize read FOnViewSize write FOnViewSize;
end;
procedure SciterRegisterBehavior(Cls: TElementClass);
function LoadResourceAsStream(const ResName: String; const ResType: PWideChar): TCustomMemoryStream;
procedure Register;
var
Pair: TPair<String, HSARCHIVE>;
PackedRes: TDictionary<String, HSARCHIVE>;
implementation
uses
SciterOle, Winapi.MLang;
var
Behaviors: TList;
procedure SciterRegisterBehavior(Cls: TElementClass);
begin
if Behaviors = nil then
Behaviors := TList.Create;
if Behaviors.IndexOf(Cls) = -1 then
Behaviors.Add(Cls);
end;
procedure SciterDebug(param: Pointer; subsystem: UINT; severity: OUTPUT_SEVERITY; text: PWideChar; text_length: UINT); stdcall;
var
FSciter: TSciter;
pArgs: TSciterOnMessageEventArgs;
begin
FSciter := TSciter(param);
if Assigned(text) then OutputDebugString(PChar(Trim(text)));
if Assigned(FSciter.FOnMessage) then
begin
pArgs := TSciterOnMessageEventArgs.Create;
pArgs.FSeverity := severity;
pArgs.FMessage := WideString(text);
FSciter.FOnMessage(FSciter, pArgs);
pArgs.Free;
end;
end;
function SciterCheck(const SR: SCDOM_RESULT; const FmtString: String; const Args: array of const; const AllowNotHandled: Boolean = False): SCDOM_RESULT; overload;
begin
if SCDOM_RESULT(SR) = SCDOM_OK then
Result := SCDOM_OK
else
begin
if (SR = SCDOM_OK_NOT_HANDLED) and (AllowNotHandled) then
begin
Result := SR;
Exit;
end;
raise ESciterException.CreateFmt(FmtString, Args);
end;
end;
function SciterCheck(const SR: SCDOM_RESULT; const Msg: String; const AllowNotHandled: Boolean = false): SCDOM_RESULT; overload;
begin
Result := SciterCheck(SR, Msg, [], AllowNotHandled);
end;