[541] | 1 | //*************************************************************
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| 2 | // EwbBehaviorsComp *
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| 3 | // *
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| 4 | // Freeware Component *
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| 5 | // For Delphi *
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| 6 | // by *
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| 7 | // Serge Voloshenyuk *
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| 8 | // Developing Team: *
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| 9 | // Serge Voloshenyuk (SergeV@bsalsa.com) *
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| 10 | // Eran Bodankin (bsalsa) -(bsalsa@gmail.com) *
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| 11 | // *
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| 12 | // Documentation and updated versions: *
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| 13 | // *
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| 14 | // http://www.bsalsa.com *
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| 15 | //*************************************************************
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| 16 | {LICENSE:
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| 17 | THIS SOFTWARE IS PROVIDED TO YOU "AS IS" WITHOUT WARRANTY OF ANY KIND,
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| 18 | EITHER EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE APPLIED
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| 19 | WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
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| 20 | YOU ASSUME THE ENTIRE RISK AS TO THE ACCURACY AND THE USE OF THE SOFTWARE
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| 21 | AND ALL OTHER RISK ARISING OUT OF THE USE OR PERFORMANCE OF THIS SOFTWARE
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| 22 | AND DOCUMENTATION. BSALSA PRODUCTIONS DOES NOT WARRANT THAT THE SOFTWARE IS ERROR-FREE
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| 23 | OR WILL OPERATE WITHOUT INTERRUPTION. THE SOFTWARE IS NOT DESIGNED, INTENDED
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| 24 | OR LICENSED FOR USE IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE CONTROLS,
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| 25 | INCLUDING WITHOUT LIMITATION, THE DESIGN, CONSTRUCTION, MAINTENANCE OR
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| 26 | OPERATION OF NUCLEAR FACILITIES, AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS,
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| 27 | AIR TRAFFIC CONTROL, AND LIFE SUPPORT OR WEAPONS SYSTEMS. BSALSA PRODUCTIONS SPECIFICALLY
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| 28 | DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR SUCH PURPOSE.
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| 29 |
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| 30 | You may use/ change/ modify the component under 3 conditions:
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| 31 | 1. In your website, add a link to "http://www.bsalsa.com"
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| 32 | 2. In your application, add credits to "Embedded Web Browser"
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| 33 | 3. Mail me (bsalsa@gmail.com) any code change in the unit for the benefit
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| 34 | of the other users.
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| 35 | 4. Please, consider donation in our web site!
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| 36 | {*******************************************************************************}
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| 37 | //$Id: EwbBehaviorsComp.pas,v 1.1.2.1 2006/11/29 22:13:00 sergev Exp $
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| 38 |
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| 39 | unit EwbBehaviorsComp;
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| 40 |
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| 41 | interface
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| 42 |
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| 43 | {$I EWB.inc}
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| 44 |
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| 45 | uses
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| 46 | {$IFDEF DELPHI6_UP}Variants, {$ENDIF}
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| 47 | Windows, Classes, Graphics, ActiveX, Mshtml_Ewb, EwbAcc, EwbClasses, EwbEvents,
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| 48 | EwbEventsComp;
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| 49 |
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| 50 | type
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| 51 | TEwbBehaviorFactory = class;
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| 52 | TBinBehavior = class;
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| 53 | TEwbBehaviorController = class;
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| 54 |
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| 55 | TPainterProperty = (
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| 56 | ppOpaque,
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| 57 | ppTransparent,
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| 58 | //NOIMPL ppAlpha,
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| 59 | //NOIMPL ppComplex,
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| 60 | ppOverlay,
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| 61 | ppHitTest,
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| 62 | ppSurface,
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| 63 | pp3DSurface,
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| 64 | //NOIMPL ppNoBand,
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| 65 | ppNoDC,
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| 66 | ppNoPhysicalClip,
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| 67 | ppNoSaveDC,
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| 68 | ppSupportsXForm,
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| 69 | ppExpand,
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| 70 | ppNoScrollBits
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| 71 | );
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| 72 | TPainterProperties = set of TPainterProperty;
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| 73 |
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| 74 | TPaintZOrder = (
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| 75 | pzNone,
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| 76 | pzReplaceAll,
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| 77 | pzReplaceContent,
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| 78 | pzReplaceBackground,
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| 79 | pzBelowContent,
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| 80 | pzBelowFlow,
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| 81 | pzAboveFlow,
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| 82 | pzAboveContent,
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| 83 | pzWinTop
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| 84 | );
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| 85 |
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| 86 | TPaintEventFlag = (pfTarget, pfSetCursor);
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| 87 | TPaintEventFlags = set of TPaintEventFlag;
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| 88 |
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| 89 | TLayoutMode = (
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| 90 | lmNone,
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| 91 | lmFullDelegation,
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| 92 | lmModifyNatural,
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| 93 | lmMapSize
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| 94 | );
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| 95 |
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| 96 | {events}
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| 97 | TBehaviorNameEvent = procedure(Sender: TEwbBehaviorController;
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| 98 | Element: IHTMLElement2; var aName: WideString) of object;
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| 99 | TCreateBehaviorEvent = function(Sender: TEwbBehaviorController;
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| 100 | const bstrBehavior, bstrBehaviorUrl: WideString;
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| 101 | pSite: IElementBehaviorSite): IElementBehavior of object;
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| 102 |
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| 103 | TGetIdOfNameEvent = procedure(Sender: TBinBehavior; const name: widestring; var id: Integer) of object;
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| 104 | TInvokeEvent = procedure(Sender: TBinBehavior; DispID: Integer;
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| 105 | VarResult: POleVariant; Params: TDispParams; var Rezult: HRESULT) of object;
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| 106 | TGetPropertyEvent = procedure(Sender: TBinBehavior; DispID: Integer;
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| 107 | VarResult: POleVariant; Params: TDispParams; var Rezult: HRESULT) of object;
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| 108 | TPutPropertyEvent = procedure(Sender: TBinBehavior; DispID: Integer;
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| 109 | Params: TDispParams; var Rezult: HRESULT) of object;
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| 110 |
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| 111 |
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| 112 | TBehaviorNotifyEvent = procedure(Sender: TBinBehavior) of object;
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| 113 | TPainterDrawEvent = procedure(Sender: TBinBehavior;
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| 114 | rcBounds, rcUpdate: TRect; lDrawFlags: Integer; Canvas: TCanvas) of object;
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| 115 | TPainterDirectDrawEvent = procedure(Sender: TBinBehavior;
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| 116 | rcBounds, rcUpdate: TRect; lDrawFlags: Integer; DrawObject: Pointer) of
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| 117 | object;
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| 118 | TPainterResizeEvent = procedure(Sender: TBinBehavior; size: TSize) of object;
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| 119 | TPainterInfoEvent = procedure(Sender: TBinBehavior; var pInfo:
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| 120 | _HTML_PAINTER_INFO) of object;
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| 121 | TPainterHitTestEvent = procedure(Sender: TBinBehavior; pt: TPoint; var pbHit:
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| 122 | BOOL;
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| 123 | var plPartID: Longint) of object;
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| 124 |
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| 125 | TLayoutSizeEvent = procedure(Sender: TBinBehavior; dwFlags: Integer;
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| 126 | sizeContent: TSize; var pptTranslateBy: TPoint;
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| 127 | var pptTopLeft: TPoint; var psizeProposed: TSize) of object;
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| 128 | TLayoutPositionEvent = procedure(Sender: TBinBehavior; lFlags: Integer; var
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| 129 | pptTopLeft: TPoint) of object;
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| 130 | TLayoutMapSizeEvent = procedure(Sender: TBinBehavior; psizeIn: PSize; var
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| 131 | prcOut: TRect) of object;
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| 132 | TLayoutTextDescentEvent = procedure(Sender: TBinBehavior; var plDescent:
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| 133 | Integer) of object;
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| 134 |
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| 135 | TEventTargetEvent = procedure(Sender: TBinBehavior; var ppElement:
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| 136 | IHTMLElement) of object;
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| 137 | TSetCursorEvent = procedure(Sender: TBinBehavior; lPartID: Integer) of object;
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| 138 | TStringFromPartIDEvent = procedure(Sender: TBinBehavior; lPartID: Integer; var
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| 139 | pbstrPart: WideString) of object;
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| 140 | TOverlayMoveEvent = procedure(Sender: TBinBehavior; rcDevice: TRect) of
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| 141 | object;
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| 142 | TGetFocusRectEvent = procedure(Sender: TBinBehavior; var pRect: TRect) of
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| 143 | object;
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| 144 | TGetSubmitInfoEvent = procedure(Sender: TBinBehavior; pSubmitData:
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| 145 | IHTMLSubmitData) of object;
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| 146 | TResetSubmitEvent = procedure(Sender: TBinBehavior) of object;
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| 147 |
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| 148 | TFindBehaviorEvent = procedure(Sender: TObject;
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| 149 | const bstrBehavior, bstrBehaviorUrl: WideString;
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| 150 | pSite: IElementBehaviorSite; var ppBehavior: IElementBehavior) of object;
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| 151 |
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| 152 | TResolveNSEvent = procedure(Sender: TObject;
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| 153 | const bstrNamespace, bstrTagName, bstrAttrs: WideString;
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| 154 | pNamespace: IElementNamespace) of object;
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| 155 |
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| 156 | TCreateNamespaceEvent = procedure(Sender: TObject;
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| 157 | pNamespace: IElementNamespace) of object;
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| 158 |
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| 159 | TCreateNSWithImplEvent = procedure(Sender: TObject;
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| 160 | pNamespace: IElementNamespace;
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| 161 | const bstrImplementation: WideString) of object;
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| 162 |
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| 163 | TEwbBehaviorFactory = class(TComponent
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| 164 | , IElementBehaviorFactory
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| 165 | , IElementNamespaceFactoryCallback
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| 166 | , IElementNamespaceFactory
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| 167 | , IElementNamespaceFactory2
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| 168 | )
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| 169 | private
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| 170 | FOnFindBehavior: TFindBehaviorEvent;
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| 171 | FOnResolveNS: TResolveNSEvent;
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| 172 | FOnCreateNS: TCreateNamespaceEvent;
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| 173 | FOnCreateNSWithImpl: TCreateNSWithImplEvent;
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| 174 | protected
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| 175 | {IElementBehaviorFactory}
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| 176 | function FindBehavior(const bstrBehavior: WideString; const bstrBehaviorUrl:
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| 177 | WideString;
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| 178 | const pSite: IElementBehaviorSite; out ppBehavior: IElementBehavior):
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| 179 | HRESULT; stdcall;
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| 180 | {IElementNamespaceFactoryCallback}
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| 181 | function Resolve(const bstrNamespace: WideString; const bstrTagName:
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| 182 | WideString;
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| 183 | const bstrAttrs: WideString; pNamespace: IElementNamespace): HRESULT;
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| 184 | stdcall;
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| 185 | {IElementNamespaceFactory}
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| 186 | function IElementNamespaceFactory.create = FactoryCreate;
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| 187 | function FactoryCreate(pNamespace: IElementNamespace): HRESULT; stdcall;
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| 188 | {IElementNamespaceFactory2}
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| 189 | function IElementNamespaceFactory2.create = FactoryCreate;
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| 190 | function CreateWithImplementation(pNamespace: IElementNamespace;
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| 191 | const bstrImplementation: WideString): HRESULT; stdcall;
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| 192 | published
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| 193 | property OnFindBehavior: TFindBehaviorEvent read FOnFindBehavior write
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| 194 | FOnFindBehavior;
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| 195 | property OnResolveNS: TResolveNSEvent read FOnResolveNS write FOnResolveNS;
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| 196 | property OnCreateNS: TCreateNamespaceEvent read FOnCreateNS write
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| 197 | FOnCreateNS;
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| 198 | property OnCreateNSWithImpl: TCreateNSWithImplEvent read FOnCreateNSWithImpl
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| 199 | write FOnCreateNSWithImpl;
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| 200 | end;
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| 201 |
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| 202 | TEwbBehaviorController = class(THtmlListener, IElementBehaviorFactory)
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| 203 | private
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| 204 | FBehaviors: TList;
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| 205 | FZOrder: TPaintZOrder;
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| 206 | FPainterProperties: TPainterProperties;
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| 207 | FPainterFlags: Integer;
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| 208 | FOnDetach: TBehaviorNotifyEvent;
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| 209 | FOnApplyStyle: TBehaviorNotifyEvent;
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| 210 | FOnDocContextChange: TBehaviorNotifyEvent;
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| 211 | FOnContentReady: TBehaviorNotifyEvent;
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| 212 | FOnInit: TBehaviorNotifyEvent;
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| 213 | FOnContentSave: TBehaviorNotifyEvent;
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| 214 | FOnDocReady: TBehaviorNotifyEvent;
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| 215 | FOnDraw: TPainterDrawEvent;
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| 216 | FOnHitTest: TPainterHitTestEvent;
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| 217 | FOnPainterInfo: TPainterInfoEvent;
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| 218 | FOnResize: TPainterResizeEvent;
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| 219 | FOnGetName: TBehaviorNameEvent;
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| 220 | FOnCreateBehavior: TCreateBehaviorEvent;
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| 221 | fHandleEvents: Boolean;
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| 222 | FLayoutMode: TLayoutMode;
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| 223 | fLayoutMapSize: TLayoutMapSizeEvent;
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| 224 | fLayoutPosition: TLayoutPositionEvent;
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| 225 | FLayoutSize: TLayoutSizeEvent;
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| 226 | FLayoutTextDescent: Integer;
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| 227 | FOnLayoutTextDescent: TLayoutTextDescentEvent;
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| 228 | fPaintEventInfo: TPaintEventFlags;
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| 229 | FOnEventTarget: TEventTargetEvent;
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| 230 | FOnSetCursor: TSetCursorEvent;
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| 231 | FOnStringFromPartID: TStringFromPartIDEvent;
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| 232 | FOnOverlayMove: TOverlayMoveEvent;
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| 233 | FOnDirectDraw: TPainterDirectDrawEvent;
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| 234 | FOnGetFocusRect: TGetFocusRectEvent;
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| 235 | FOnGetSubmitInfo: TGetSubmitInfoEvent;
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| 236 | FOnResetSubmit: TResetSubmitEvent;
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| 237 | FOnGetIdOfName: TGetIdOfNameEvent;
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| 238 | FOnGetProperty: TGetPropertyEvent;
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| 239 | FOnInvoke: TInvokeEvent;
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| 240 | FOnPutProperty: TPutPropertyEvent;
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| 241 | fAlive: Boolean;
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| 242 | procedure setPainterProperties(const Value: TPainterProperties);
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| 243 | procedure setZOrder(const Value: TPaintZOrder);
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| 244 | procedure setLayoutMode(const Value: TLayoutMode);
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| 245 | procedure setLayoutTextDescent(const Value: Integer);
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| 246 | protected
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| 247 | {IElementBehaviorFactory}
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| 248 | function FindBehavior(const bstrBehavior: WideString; const bstrBehaviorUrl:
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| 249 | WideString;
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| 250 | const pSite: IElementBehaviorSite; out ppBehavior: IElementBehavior):
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| 251 | HRESULT; stdcall;
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| 252 |
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| 253 | protected
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| 254 | procedure Add(aBehavior: TBinBehavior);
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| 255 | procedure Remove(aBehavior: TBinBehavior);
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| 256 |
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| 257 | procedure DoGetIdOfName(Sender: TBinBehavior; const name: widestring; var id: Integer); virtual;
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| 258 | procedure DoInvoke(Sender: TBinBehavior; DispID: Integer;
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| 259 | VarResult: POleVariant; Params: TDispParams; var Rezult: HRESULT); virtual;
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| 260 | procedure DoGetProperty(Sender: TBinBehavior; DispID: Integer;
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| 261 | VarResult: POleVariant; Params: TDispParams; var Rezult: HRESULT); virtual;
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| 262 | procedure DoPutProperty(Sender: TBinBehavior; DispID: Integer;
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| 263 | Params: TDispParams; var Rezult: HRESULT); virtual;
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| 264 |
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| 265 | procedure DoInit(Sender: TBinBehavior); virtual;
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| 266 | procedure DoDetach(Sender: TBinBehavior); virtual;
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| 267 | procedure DoNotify(Sender: TBinBehavior; lEvent: Integer); virtual;
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| 268 | procedure DoDraw(Sender: TBinBehavior;
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| 269 | rcBounds, rcUpdate: TRect; lDrawFlags: Integer; Canvas: TCanvas); virtual;
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| 270 | procedure DoDirectDraw(Sender: TBinBehavior;
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| 271 | rcBounds, rcUpdate: TRect; lDrawFlags: Integer; pvDrawObject: Pointer);
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| 272 | virtual;
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| 273 | procedure DoPainterResize(Sender: TBinBehavior; size: TSize); virtual;
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| 274 | procedure GetPainterInfo(Sender: TBinBehavior; var pInfo:
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| 275 | _HTML_PAINTER_INFO); virtual;
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| 276 | procedure DoHitTestPoint(Sender: TBinBehavior; pt: TPoint; var pbHit: BOOL;
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| 277 | var plPartID: Longint); virtual;
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| 278 | procedure DoLayoutSize(Sender: TBinBehavior; dwFlags: Integer; sizeContent:
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| 279 | TSize; var pptTranslateBy: TPoint;
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| 280 | var pptTopLeft: TPoint; var psizeProposed: TSize); virtual;
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| 281 | procedure DoLayoutPosition(Sender: TBinBehavior; lFlags: Integer; var
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| 282 | pptTopLeft: TPoint); virtual;
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| 283 | procedure DoLayoutMapSize(Sender: TBinBehavior; psizeIn: PSize; var prcOut:
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| 284 | TRect); virtual;
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| 285 | procedure DoTextDescent(Sender: TBinBehavior; var plDescent: Integer);
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| 286 | virtual;
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| 287 |
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| 288 | procedure DoEventTarget(Sender: TBinBehavior; var ppElement: IHTMLElement);
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| 289 | virtual;
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| 290 | procedure DoSetCursor(Sender: TBinBehavior; lPartID: Integer); virtual;
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| 291 | function DoStringFromPartID(Sender: TBinBehavior; lPartID: Integer; out
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| 292 | pbstrPart: WideString): Boolean; virtual;
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| 293 | procedure DoOverlayMove(Sender: TBinBehavior; rcDevice: TRect); virtual;
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| 294 | procedure DoGetFocusRect(Sender: TBinBehavior; var pRect: TRect); virtual;
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| 295 | procedure DoGetSubmitInfo(Sender: TBinBehavior; pSubmitData:
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| 296 | IHTMLSubmitData); virtual;
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| 297 | procedure DoResetSubmit(Sender: TBinBehavior); virtual;
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| 298 | public
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| 299 | destructor Destroy; override;
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| 300 |
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| 301 | procedure InvalidatePainterInfo;
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| 302 | procedure InvalidateLayoutInfo;
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| 303 |
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| 304 | function Attach(Element: IHTMLElement2): Integer; overload;
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| 305 | function Attach(Element: IHTMLElement): Integer; overload;
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| 306 | published
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| 307 | property Alive: Boolean read fAlive write fAlive;
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| 308 | property ZOrder: TPaintZOrder read FZOrder write setZOrder default pzNone;
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| 309 | property LayoutMode: TLayoutMode read FLayoutMode write setLayoutMode default lmNone;
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| 310 | property PainterProperties: TPainterProperties read FPainterProperties write
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| 311 | setPainterProperties;
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| 312 | property HandleEvents: Boolean read fHandleEvents write fHandleEvents;
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| 313 | property LayoutTextDescent: Integer read FLayoutTextDescent write
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| 314 | setLayoutTextDescent;
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| 315 | property PaintEventInfo: TPaintEventFlags read fPaintEventInfo write
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| 316 | fPaintEventInfo;
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| 317 |
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| 318 | property OnGetName: TBehaviorNameEvent read FOnGetName write FOnGetName;
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| 319 | property OnInvoke: TInvokeEvent read FOnInvoke write FOnInvoke;
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| 320 | property OnGetProperty: TGetPropertyEvent read FOnGetProperty write FOnGetProperty;
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| 321 | property OnPutProperty: TPutPropertyEvent read FOnPutProperty write FOnPutProperty;
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| 322 |
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| 323 |
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| 324 | property OnCreateBehavior: TCreateBehaviorEvent read FOnCreateBehavior write
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| 325 | FOnCreateBehavior;
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| 326 |
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| 327 | property OnGetIdOfName: TGetIdOfNameEvent read FOnGetIdOfName write FOnGetIdOfName;
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| 328 |
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| 329 | property OnInit: TBehaviorNotifyEvent read FOnInit write FOnInit;
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| 330 | property OnDetach: TBehaviorNotifyEvent read FOnDetach write FOnDetach;
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| 331 | property OnContentReady: TBehaviorNotifyEvent read FOnContentReady write
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| 332 | FOnContentReady;
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| 333 | property OnDocReady: TBehaviorNotifyEvent read FOnDocReady write
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| 334 | FOnDocReady;
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| 335 | property OnApplyStyle: TBehaviorNotifyEvent read FOnApplyStyle write
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| 336 | FOnApplyStyle;
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| 337 | property OnDocContextChange: TBehaviorNotifyEvent read FOnDocContextChange
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| 338 | write FOnDocContextChange;
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| 339 | property OnContentSave: TBehaviorNotifyEvent read FOnContentSave write
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| 340 | FOnContentSave;
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| 341 |
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| 342 | property OnDraw: TPainterDrawEvent read FOnDraw write FOnDraw;
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| 343 | property OnDirectDraw: TPainterDirectDrawEvent read FOnDirectDraw write
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| 344 | FOnDirectDraw;
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| 345 | property OnPainterResize: TPainterResizeEvent read FOnResize write
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| 346 | FOnResize;
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| 347 | property OnPainterInfo: TPainterInfoEvent read FOnPainterInfo write
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| 348 | FOnPainterInfo;
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| 349 | property OnPainterHitTest: TPainterHitTestEvent read FOnHitTest write
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| 350 | FOnHitTest;
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| 351 |
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| 352 | property OnOverlayMove: TOverlayMoveEvent read FOnOverlayMove write
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| 353 | FOnOverlayMove;
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| 354 |
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| 355 | property OnEventTarget: TEventTargetEvent read FOnEventTarget write
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| 356 | FOnEventTarget;
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| 357 | property OnSetCursor: TSetCursorEvent read FOnSetCursor write FOnSetCursor;
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| 358 | property OnStringFromPartID: TStringFromPartIDEvent read FOnStringFromPartID
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| 359 | write FOnStringFromPartID;
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| 360 |
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| 361 | property OnLayoutSize: TLayoutSizeEvent read FLayoutSize write FLayoutSize;
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| 362 | property OnLayoutPosition: TLayoutPositionEvent read fLayoutPosition write
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| 363 | fLayoutPosition;
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| 364 | property OnLayoutMapSize: TLayoutMapSizeEvent read fLayoutMapSize write
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| 365 | fLayoutMapSize;
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| 366 | property OnLayoutTextDescent: TLayoutTextDescentEvent read
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| 367 | FOnLayoutTextDescent write FOnLayoutTextDescent;
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| 368 |
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| 369 | property OnGetFocusRect: TGetFocusRectEvent read FOnGetFocusRect write
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| 370 | FOnGetFocusRect;
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| 371 | property OnGetSubmitInfo: TGetSubmitInfoEvent read FOnGetSubmitInfo write
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| 372 | FOnGetSubmitInfo;
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| 373 | property OnResetSubmit: TResetSubmitEvent read FOnResetSubmit write
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| 374 | FOnResetSubmit;
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| 375 | end;
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| 376 |
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| 377 | TBihState = set of 0..7;
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| 378 |
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| 379 | TBinBehavior = class(TInterfacedDispatchObject
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| 380 | , IElementBehavior
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| 381 | , IHTMLPainter
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| 382 | , IHTMLPainterEventInfo
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| 383 | , IHTMLPainterOverlay
|
---|
| 384 | , IElementBehaviorLayout
|
---|
| 385 | , IElementBehaviorLayout2
|
---|
| 386 | , IElementBehaviorFocus
|
---|
| 387 | , IElementBehaviorSubmit
|
---|
| 388 | )
|
---|
| 389 | private
|
---|
| 390 | fController: TEwbBehaviorController;
|
---|
| 391 | fSite: IElementBehaviorSite;
|
---|
| 392 | FElement: IHTMLElement;
|
---|
| 393 | FEventsLink: IHubLink;
|
---|
| 394 | fState: TBihState;
|
---|
| 395 | function getSiteOM: IElementBehaviorSiteOM;
|
---|
| 396 | function getPaintSite: IHTMLPaintSite;
|
---|
| 397 | function getDefaults: IHTMLElementDefaults;
|
---|
| 398 | function getSiteLayout: IElementBehaviorSiteLayout;
|
---|
| 399 | function getSiteLayout2: IElementBehaviorSiteLayout2;
|
---|
| 400 | protected
|
---|
| 401 | {IDispatch}
|
---|
| 402 | function GetIDsOfNames(const IID: TGUID; Names: Pointer;
|
---|
| 403 | NameCount, LocaleID: Integer; DispIDs: Pointer): HRESULT; override;
|
---|
| 404 | stdcall;
|
---|
| 405 | function Invoke(DispID: Integer; const IID: TGUID; LocaleID: Integer;
|
---|
| 406 | Flags: Word; var Params; VarResult, ExcepInfo, ArgErr: Pointer): HRESULT;
|
---|
| 407 | override; stdcall;
|
---|
| 408 | {IElementBehavior}
|
---|
| 409 | function Init(pBehaviorSite: IElementBehaviorSite): HRESULT; stdcall;
|
---|
| 410 | function Notify(lEvent: Integer; var pVar: OleVariant): HRESULT; stdcall;
|
---|
| 411 | function Detach: HRESULT; stdcall;
|
---|
| 412 | {IHTMLPainter}
|
---|
| 413 | function IHTMLPainter.Draw = PainterDraw;
|
---|
| 414 | function PainterDraw(rcBounds, rcUpdate: TRect; lDrawFlags: Integer;
|
---|
| 415 | hdc: hdc; pvDrawObject: Pointer): HRESULT; stdcall;
|
---|
| 416 | function IHTMLPainter.onresize = PainterResize;
|
---|
| 417 | function PainterResize(size: TSize): HRESULT; stdcall;
|
---|
| 418 | function IHTMLPainter.GetPainterInfo = PainterInfo;
|
---|
| 419 | function PainterInfo(out pInfo: _HTML_PAINTER_INFO): HRESULT; stdcall;
|
---|
| 420 | function IHTMLPainter.HitTestPoint = PainterHitTestPoint;
|
---|
| 421 | function PainterHitTestPoint(pt: TPoint; out pbHit: BOOL; out plPartID:
|
---|
| 422 | Longint): HRESULT; stdcall;
|
---|
| 423 | {IHTMLPainterEventInfo}
|
---|
| 424 | function GetEventInfoFlags(out plEventInfoFlags: Integer): HRESULT; stdcall;
|
---|
| 425 | function GetEventTarget(var ppElement: IHTMLElement): HRESULT; stdcall;
|
---|
| 426 | function SetCursor(lPartID: Integer): HRESULT; stdcall;
|
---|
| 427 | function StringFromPartID(lPartID: Integer; out pbstrPart: WideString):
|
---|
| 428 | HRESULT; stdcall;
|
---|
| 429 | {IHTMLPainterOverlay}
|
---|
| 430 | function IHTMLPainterOverlay.onmove = onOverlayMove;
|
---|
| 431 | function onOverlayMove(rcDevice: TRect): HRESULT; stdcall;
|
---|
| 432 | {IElementBehaviorLayout}
|
---|
| 433 | function GetSize(dwFlags: Integer; sizeContent: TSize; var pptTranslateBy:
|
---|
| 434 | TPoint;
|
---|
| 435 | var pptTopLeft: TPoint; var psizeProposed: TSize): HRESULT; stdcall;
|
---|
| 436 | function GetLayoutInfo(out plLayoutInfo: Integer): HRESULT; stdcall;
|
---|
| 437 | function GetPosition(lFlags: Integer; var pptTopLeft: TPoint): HRESULT;
|
---|
| 438 | stdcall;
|
---|
| 439 | function MapSize(psizeIn: PSize; out prcOut: TRect): HRESULT; stdcall;
|
---|
| 440 | {IElementBehaviorLayout2}
|
---|
| 441 | function GetTextDescent(out plDescent: Integer): HRESULT; stdcall;
|
---|
| 442 | {IElementBehaviorFocus}
|
---|
| 443 | function GetFocusRect(var pRect: TRect): HRESULT; stdcall;
|
---|
| 444 | {IElementBehaviorSubmit}
|
---|
| 445 | function GetSubmitInfo(pSubmitData: IHTMLSubmitData): HRESULT; stdcall;
|
---|
| 446 | function IElementBehaviorSubmit.reset = ResetSubmit;
|
---|
| 447 | function ResetSubmit: HRESULT; stdcall;
|
---|
| 448 | protected
|
---|
| 449 | function getBoolProp(const Index: Integer): Boolean;
|
---|
| 450 | procedure SetBoolProp(const Index: Integer; const Value: Boolean);
|
---|
| 451 | public
|
---|
| 452 | constructor Create(aController: TEwbBehaviorController);
|
---|
| 453 | destructor Destroy; override;
|
---|
| 454 |
|
---|
| 455 | procedure ConnectToEvents;
|
---|
| 456 | procedure DisconnectFromEvents;
|
---|
| 457 | property Controller: TEwbBehaviorController read fController;
|
---|
| 458 | property Site: IElementBehaviorSite read fSite;
|
---|
| 459 | property SiteOM: IElementBehaviorSiteOM read getSiteOM;
|
---|
| 460 | property ContextReady: Boolean index 0 read getBoolProp;
|
---|
| 461 | property DocumentReady: Boolean index 1 read getBoolProp;
|
---|
| 462 | property Element: IHTMLElement read FElement;
|
---|
| 463 | property PaintSite: IHTMLPaintSite read getPaintSite;
|
---|
| 464 | property Defaults: IHTMLElementDefaults read getDefaults;
|
---|
| 465 | property SiteLayout: IElementBehaviorSiteLayout read getSiteLayout;
|
---|
| 466 | property SiteLayout2: IElementBehaviorSiteLayout2 read getSiteLayout2;
|
---|
| 467 | end;
|
---|
| 468 |
|
---|
| 469 | implementation
|
---|
| 470 | uses SysUtils;
|
---|
| 471 |
|
---|
| 472 | const
|
---|
| 473 |
|
---|
| 474 | _zorders: array[TPaintZOrder] of Integer = (
|
---|
| 475 | HTMLPAINT_ZORDER_NONE,
|
---|
| 476 | HTMLPAINT_ZORDER_REPLACE_ALL,
|
---|
| 477 | HTMLPAINT_ZORDER_REPLACE_CONTENT,
|
---|
| 478 | HTMLPAINT_ZORDER_REPLACE_BACKGROUND,
|
---|
| 479 | HTMLPAINT_ZORDER_BELOW_CONTENT,
|
---|
| 480 | HTMLPAINT_ZORDER_BELOW_FLOW,
|
---|
| 481 | HTMLPAINT_ZORDER_ABOVE_FLOW,
|
---|
| 482 | HTMLPAINT_ZORDER_ABOVE_CONTENT,
|
---|
| 483 | HTMLPAINT_ZORDER_WINDOW_TOP
|
---|
| 484 | );
|
---|
| 485 |
|
---|
| 486 | _pproperties: array[TPainterProperty] of Integer = (
|
---|
| 487 | HTMLPAINTER_OPAQUE,
|
---|
| 488 | HTMLPAINTER_TRANSPARENT,
|
---|
| 489 | //NOIMPL HTMLPAINTER_ALPHA,
|
---|
| 490 | //NOIMPL HTMLPAINTER_COMPLEX,
|
---|
| 491 | HTMLPAINTER_OVERLAY,
|
---|
| 492 | HTMLPAINTER_HITTEST,
|
---|
| 493 | HTMLPAINTER_SURFACE,
|
---|
| 494 | HTMLPAINTER_3DSURFACE,
|
---|
| 495 | //NOIMPL HTMLPAINTER_NOBAND,
|
---|
| 496 | HTMLPAINTER_NODC,
|
---|
| 497 | HTMLPAINTER_NOPHYSICALCLIP,
|
---|
| 498 | HTMLPAINTER_NOSAVEDC,
|
---|
| 499 | HTMLPAINTER_SUPPORTS_XFORM,
|
---|
| 500 | HTMLPAINTER_EXPAND,
|
---|
| 501 | HTMLPAINTER_NOSCROLLBITS
|
---|
| 502 | );
|
---|
| 503 |
|
---|
| 504 | _layouts: array[TLayoutMode] of Integer = (
|
---|
| 505 | 0,
|
---|
| 506 | BEHAVIORLAYOUTINFO_FULLDELEGATION,
|
---|
| 507 | BEHAVIORLAYOUTINFO_MODIFYNATURAL,
|
---|
| 508 | BEHAVIORLAYOUTINFO_MAPSIZE
|
---|
| 509 | );
|
---|
| 510 |
|
---|
| 511 | { TEwbBehaviorFactory }
|
---|
| 512 |
|
---|
| 513 | function TEwbBehaviorFactory.CreateWithImplementation(
|
---|
| 514 | pNamespace: IElementNamespace;
|
---|
| 515 | const bstrImplementation: WideString): HRESULT;
|
---|
| 516 | begin
|
---|
| 517 | Result := S_OK;
|
---|
| 518 | if Assigned(FOnCreateNSWithImpl) then
|
---|
| 519 | FOnCreateNSWithImpl(Self, pNamespace, bstrImplementation)
|
---|
| 520 | else if Assigned(FOnCreateNS) then
|
---|
| 521 | FOnCreateNS(Self, pNamespace);
|
---|
| 522 | end;
|
---|
| 523 |
|
---|
| 524 | function TEwbBehaviorFactory.FactoryCreate(pNamespace: IElementNamespace):
|
---|
| 525 | HRESULT;
|
---|
| 526 | begin
|
---|
| 527 | Result := S_OK;
|
---|
| 528 | if Assigned(FOnCreateNS) then
|
---|
| 529 | FOnCreateNS(Self, pNamespace);
|
---|
| 530 | end;
|
---|
| 531 |
|
---|
| 532 | function TEwbBehaviorFactory.FindBehavior(const bstrBehavior,
|
---|
| 533 | bstrBehaviorUrl: WideString; const pSite: IElementBehaviorSite;
|
---|
| 534 | out ppBehavior: IElementBehavior): HRESULT;
|
---|
| 535 | begin
|
---|
| 536 | ppBehavior := nil;
|
---|
| 537 | if Assigned(FOnFindBehavior) then
|
---|
| 538 | FOnFindBehavior(Self, bstrBehavior, bstrBehaviorUrl, pSite, ppBehavior);
|
---|
| 539 | if ppBehavior = nil then
|
---|
| 540 | Result := E_NOTIMPL
|
---|
| 541 | else
|
---|
| 542 | Result := S_OK;
|
---|
| 543 | end;
|
---|
| 544 |
|
---|
| 545 | function TEwbBehaviorFactory.Resolve(const bstrNamespace, bstrTagName,
|
---|
| 546 | bstrAttrs: WideString; pNamespace: IElementNamespace): HRESULT;
|
---|
| 547 | begin
|
---|
| 548 | Result := S_OK;
|
---|
| 549 | if Assigned(FOnResolveNS) then
|
---|
| 550 | FOnResolveNS(Self, bstrNamespace, bstrTagName, bstrAttrs, pNamespace);
|
---|
| 551 | end;
|
---|
| 552 |
|
---|
| 553 | { TBinBehavior }
|
---|
| 554 |
|
---|
| 555 | constructor TBinBehavior.Create(aController: TEwbBehaviorController);
|
---|
| 556 | begin
|
---|
| 557 | inherited Create;
|
---|
| 558 | aController.Add(Self);
|
---|
| 559 | end;
|
---|
| 560 |
|
---|
| 561 | destructor TBinBehavior.Destroy;
|
---|
| 562 | begin
|
---|
| 563 | FController.Remove(Self);
|
---|
| 564 | inherited;
|
---|
| 565 | end;
|
---|
| 566 |
|
---|
| 567 | function TBinBehavior.getBoolProp(const Index: Integer): Boolean;
|
---|
| 568 | begin
|
---|
| 569 | Result := Index in fState;
|
---|
| 570 | end;
|
---|
| 571 |
|
---|
| 572 | procedure TBinBehavior.SetBoolProp(const Index: Integer;
|
---|
| 573 | const Value: Boolean);
|
---|
| 574 | begin
|
---|
| 575 | if Value then
|
---|
| 576 | Include(fState, Index)
|
---|
| 577 | else
|
---|
| 578 | Exclude(fState, Index);
|
---|
| 579 | end;
|
---|
| 580 |
|
---|
| 581 | function TBinBehavior.getSiteOM: IElementBehaviorSiteOM;
|
---|
| 582 | begin
|
---|
| 583 | if not Supports(fSite, IElementBehaviorSiteOM, Result) then
|
---|
| 584 | Result := nil;
|
---|
| 585 | end;
|
---|
| 586 |
|
---|
| 587 | function TBinBehavior.getPaintSite: IHTMLPaintSite;
|
---|
| 588 | begin
|
---|
| 589 | if not Supports(fSite, IHTMLPaintSite, Result) then
|
---|
| 590 | Result := nil;
|
---|
| 591 | end;
|
---|
| 592 |
|
---|
| 593 | function TBinBehavior.getDefaults: IHTMLElementDefaults;
|
---|
| 594 | var
|
---|
| 595 | OM2: IElementBehaviorSiteOM2;
|
---|
| 596 | begin
|
---|
| 597 | if Supports(fSite, IElementBehaviorSiteOM2, OM2) then
|
---|
| 598 | OM2.GetDefaults(Result)
|
---|
| 599 | else
|
---|
| 600 | Result := nil;
|
---|
| 601 | end;
|
---|
| 602 |
|
---|
| 603 | function TBinBehavior.getSiteLayout: IElementBehaviorSiteLayout;
|
---|
| 604 | begin
|
---|
| 605 | if not Supports(fSite, IElementBehaviorSiteLayout, Result) then
|
---|
| 606 | Result := nil;
|
---|
| 607 | end;
|
---|
| 608 |
|
---|
| 609 | function TBinBehavior.getSiteLayout2: IElementBehaviorSiteLayout2;
|
---|
| 610 | begin
|
---|
| 611 | if not Supports(fSite, IElementBehaviorSiteLayout2, Result) then
|
---|
| 612 | Result := nil;
|
---|
| 613 | end;
|
---|
| 614 |
|
---|
| 615 | function TBinBehavior.Detach: HRESULT;
|
---|
| 616 | begin
|
---|
| 617 | FController.DoDetach(Self);
|
---|
| 618 | DisconnectFromEvents;
|
---|
| 619 | FElement := nil;
|
---|
| 620 | SetBoolProp(1, False);
|
---|
| 621 | fSite := nil;
|
---|
| 622 | SetBoolProp(0, False);
|
---|
| 623 | Result := S_OK;
|
---|
| 624 | end;
|
---|
| 625 |
|
---|
| 626 | procedure TBinBehavior.ConnectToEvents;
|
---|
| 627 | begin
|
---|
| 628 | if FEventsLink = nil then
|
---|
| 629 | FEventsLink := FController.Connect2(Element, Self);
|
---|
| 630 | end;
|
---|
| 631 |
|
---|
| 632 | procedure TBinBehavior.DisconnectFromEvents;
|
---|
| 633 | begin
|
---|
| 634 | if FEventsLink <> nil then
|
---|
| 635 | try
|
---|
| 636 | FEventsLink.Disconnect;
|
---|
| 637 | finally
|
---|
| 638 | FEventsLink := nil;
|
---|
| 639 | end;
|
---|
| 640 | end;
|
---|
| 641 |
|
---|
| 642 | function TBinBehavior.Init(pBehaviorSite: IElementBehaviorSite): HRESULT;
|
---|
| 643 | begin
|
---|
| 644 | fSite := pBehaviorSite;
|
---|
| 645 | FController.DoInit(Self);
|
---|
| 646 | Result := S_OK;
|
---|
| 647 | end;
|
---|
| 648 |
|
---|
| 649 | function TBinBehavior.Notify(lEvent: Integer;
|
---|
| 650 | var pVar: OleVariant): HRESULT;
|
---|
| 651 | begin
|
---|
| 652 | case lEvent of
|
---|
| 653 | BEHAVIOREVENT_CONTENTREADY:
|
---|
| 654 | begin
|
---|
| 655 | SetBoolProp(0, True);
|
---|
| 656 | Site.GetElement(FElement);
|
---|
| 657 | if FController.HandleEvents then
|
---|
| 658 | Self.ConnectToEvents;
|
---|
| 659 | end;
|
---|
| 660 | BEHAVIOREVENT_DOCUMENTREADY:
|
---|
| 661 | SetBoolProp(1, True);
|
---|
| 662 | end;
|
---|
| 663 | FController.DoNotify(Self, lEvent);
|
---|
| 664 | Result := S_OK;
|
---|
| 665 | end;
|
---|
| 666 |
|
---|
| 667 | function TBinBehavior.PainterDraw(rcBounds, rcUpdate: TRect;
|
---|
| 668 | lDrawFlags: Integer; hdc: hdc; pvDrawObject: Pointer): HRESULT;
|
---|
| 669 | var
|
---|
| 670 | Canvas: TCanvas;
|
---|
| 671 | begin
|
---|
| 672 | Result := S_OK;
|
---|
| 673 | if hdc <> 0 then
|
---|
| 674 | begin
|
---|
| 675 | Canvas := TCanvas.Create;
|
---|
| 676 | Canvas.Handle := hdc;
|
---|
| 677 | end else if pvDrawObject <> nil then
|
---|
| 678 | begin
|
---|
| 679 | FController.DoDirectDraw(Self, rcBounds, rcUpdate, lDrawFlags,
|
---|
| 680 | pvDrawObject);
|
---|
| 681 | Exit;
|
---|
| 682 | end else
|
---|
| 683 | Canvas := nil;
|
---|
| 684 | try
|
---|
| 685 | FController.DoDraw(Self, rcBounds, rcUpdate, lDrawFlags, Canvas);
|
---|
| 686 | finally
|
---|
| 687 | Canvas.Free;
|
---|
| 688 | end;
|
---|
| 689 | end;
|
---|
| 690 |
|
---|
| 691 | function TBinBehavior.PainterHitTestPoint(pt: TPoint; out pbHit: BOOL;
|
---|
| 692 | out plPartID: Integer): HRESULT;
|
---|
| 693 | begin
|
---|
| 694 | pbHit := False;
|
---|
| 695 | plPartID := 0;
|
---|
| 696 | FController.DoHitTestPoint(Self, pt, pbHit, plPartID);
|
---|
| 697 | Result := S_OK;
|
---|
| 698 | end;
|
---|
| 699 |
|
---|
| 700 | function TBinBehavior.PainterInfo(out pInfo: _HTML_PAINTER_INFO): HRESULT;
|
---|
| 701 | begin
|
---|
| 702 | pInfo.lZOrder := _zorders[FController.ZOrder];
|
---|
| 703 | pInfo.lFlags := FController.FPainterFlags;
|
---|
| 704 | FController.GetPainterInfo(Self, pInfo);
|
---|
| 705 | Result := S_OK;
|
---|
| 706 | end;
|
---|
| 707 |
|
---|
| 708 | function TBinBehavior.PainterResize(size: TSize): HRESULT;
|
---|
| 709 | begin
|
---|
| 710 | FController.DoPainterResize(Self, size);
|
---|
| 711 | Result := S_OK;
|
---|
| 712 | end;
|
---|
| 713 |
|
---|
| 714 | function TBinBehavior.GetLayoutInfo(out plLayoutInfo: Integer): HRESULT;
|
---|
| 715 | begin
|
---|
| 716 | plLayoutInfo := _layouts[FController.LayoutMode];
|
---|
| 717 | Result := S_OK;
|
---|
| 718 | end;
|
---|
| 719 |
|
---|
| 720 | function TBinBehavior.GetPosition(lFlags: Integer;
|
---|
| 721 | var pptTopLeft: TPoint): HRESULT;
|
---|
| 722 | begin
|
---|
| 723 | FController.DoLayoutPosition(Self, lFlags, pptTopLeft);
|
---|
| 724 | Result := S_OK;
|
---|
| 725 | end;
|
---|
| 726 |
|
---|
| 727 | function TBinBehavior.GetSize(dwFlags: Integer; sizeContent: TSize;
|
---|
| 728 | var pptTranslateBy, pptTopLeft: TPoint;
|
---|
| 729 | var psizeProposed: TSize): HRESULT;
|
---|
| 730 | begin
|
---|
| 731 | FController.DoLayoutSize(Self, dwFlags, sizeContent,
|
---|
| 732 | pptTranslateBy, pptTopLeft, psizeProposed);
|
---|
| 733 | Result := S_OK;
|
---|
| 734 | end;
|
---|
| 735 |
|
---|
| 736 | function TBinBehavior.MapSize(psizeIn: PSize; out prcOut: TRect): HRESULT;
|
---|
| 737 | begin
|
---|
| 738 | FController.DoLayoutMapSize(Self, psizeIn, prcOut);
|
---|
| 739 | Result := S_OK;
|
---|
| 740 | end;
|
---|
| 741 |
|
---|
| 742 | function TBinBehavior.GetTextDescent(out plDescent: Integer): HRESULT;
|
---|
| 743 | begin
|
---|
| 744 | FController.DoTextDescent(Self, plDescent);
|
---|
| 745 | Result := S_OK;
|
---|
| 746 | end;
|
---|
| 747 |
|
---|
| 748 | function TBinBehavior.GetEventInfoFlags(
|
---|
| 749 | out plEventInfoFlags: Integer): HRESULT;
|
---|
| 750 | begin
|
---|
| 751 | plEventInfoFlags := 0;
|
---|
| 752 | with Self.FController do
|
---|
| 753 | begin
|
---|
| 754 | if pfTarget in PaintEventInfo then
|
---|
| 755 | plEventInfoFlags := HTMLPAINT_EVENT_TARGET;
|
---|
| 756 | if pfSetCursor in PaintEventInfo then
|
---|
| 757 | plEventInfoFlags := plEventInfoFlags or HTMLPAINT_EVENT_SETCURSOR;
|
---|
| 758 | end;
|
---|
| 759 | Result := S_OK;
|
---|
| 760 | end;
|
---|
| 761 |
|
---|
| 762 | function TBinBehavior.GetEventTarget(var ppElement: IHTMLElement): HRESULT;
|
---|
| 763 | begin
|
---|
| 764 | FController.DoEventTarget(Self, ppElement);
|
---|
| 765 | Result := S_OK;
|
---|
| 766 | end;
|
---|
| 767 |
|
---|
| 768 | function TBinBehavior.SetCursor(lPartID: Integer): HRESULT;
|
---|
| 769 | begin
|
---|
| 770 | FController.DoSetCursor(Self, lPartID);
|
---|
| 771 | Result := S_OK;
|
---|
| 772 | end;
|
---|
| 773 |
|
---|
| 774 | function TBinBehavior.StringFromPartID(lPartID: Integer;
|
---|
| 775 | out pbstrPart: WideString): HRESULT;
|
---|
| 776 | begin
|
---|
| 777 | if FController.DoStringFromPartID(Self, lPartID, pbstrPart) then
|
---|
| 778 | Result := S_OK
|
---|
| 779 | else
|
---|
| 780 | Result := E_NOTIMPL;
|
---|
| 781 | end;
|
---|
| 782 |
|
---|
| 783 | function TBinBehavior.onOverlayMove(rcDevice: TRect): HRESULT;
|
---|
| 784 | begin
|
---|
| 785 | FController.DoOverlayMove(Self, rcDevice);
|
---|
| 786 | Result := S_OK;
|
---|
| 787 | end;
|
---|
| 788 |
|
---|
| 789 | function TBinBehavior.GetFocusRect(var pRect: TRect): HRESULT;
|
---|
| 790 | begin
|
---|
| 791 | FController.DoGetFocusRect(Self, pRect);
|
---|
| 792 | Result := S_OK;
|
---|
| 793 | end;
|
---|
| 794 |
|
---|
| 795 | function TBinBehavior.GetSubmitInfo(
|
---|
| 796 | pSubmitData: IHTMLSubmitData): HRESULT;
|
---|
| 797 | begin
|
---|
| 798 | FController.DoGetSubmitInfo(Self, pSubmitData);
|
---|
| 799 | Result := S_OK;
|
---|
| 800 | end;
|
---|
| 801 |
|
---|
| 802 | function TBinBehavior.ResetSubmit: HRESULT;
|
---|
| 803 | begin
|
---|
| 804 | FController.DoResetSubmit(Self);
|
---|
| 805 | Result := S_OK;
|
---|
| 806 | end;
|
---|
| 807 |
|
---|
| 808 | function TBinBehavior.GetIDsOfNames(const IID: TGUID; Names: Pointer;
|
---|
| 809 | NameCount, LocaleID: Integer; DispIDs: Pointer): HRESULT;
|
---|
| 810 | var
|
---|
| 811 | I: Integer;
|
---|
| 812 | pname: WideString;
|
---|
| 813 | id: Integer;
|
---|
| 814 | begin
|
---|
| 815 | pname := PWideChar(Names^);
|
---|
| 816 | for I := 0 to NameCount - 1 do
|
---|
| 817 | PDispIDList(DispIDs)^[i] := -1;
|
---|
| 818 | id := -1;
|
---|
| 819 | FController.DoGetIdOfName(Self, pname, id);
|
---|
| 820 | if id <> -1 then
|
---|
| 821 | begin
|
---|
| 822 | PDispIDList(DispIDs)^[0] := TDispID(id);
|
---|
| 823 | Result := S_OK
|
---|
| 824 | end else Result := E_NOTIMPL;
|
---|
| 825 | end;
|
---|
| 826 |
|
---|
| 827 | function TBinBehavior.Invoke(DispID: Integer; const IID: TGUID;
|
---|
| 828 | LocaleID: Integer; Flags: Word; var Params; VarResult, ExcepInfo,
|
---|
| 829 | ArgErr: Pointer): HRESULT;
|
---|
| 830 | begin
|
---|
| 831 | try
|
---|
| 832 | Result := DISP_E_MEMBERNOTFOUND;
|
---|
| 833 | if integer(DispID) <> -1 then
|
---|
| 834 | if Flags = DISPATCH_METHOD then
|
---|
| 835 | FController.DoInvoke(Self, DispID, POleVariant(VarResult),
|
---|
| 836 | TDispParams(Params), Result)
|
---|
| 837 | else
|
---|
| 838 | case Flags and not DISPATCH_METHOD of
|
---|
| 839 | DISPATCH_PROPERTYGET:
|
---|
| 840 | FController.DoGetProperty(Self, DispID, POleVariant(VarResult),
|
---|
| 841 | TDispParams(Params), Result);
|
---|
| 842 |
|
---|
| 843 | DISPATCH_PROPERTYPUT,
|
---|
| 844 | DISPATCH_PROPERTYPUTREF,
|
---|
| 845 | DISPATCH_PROPERTYPUT + DISPATCH_PROPERTYPUTREF:
|
---|
| 846 | FController.DoPutProperty(Self, DispID, TDispParams(Params), Result);
|
---|
| 847 | end;
|
---|
| 848 | except
|
---|
| 849 | on E: Exception do
|
---|
| 850 | with PExcepInfo(ExcepInfo)^ do
|
---|
| 851 | begin
|
---|
| 852 | Result := DISP_E_EXCEPTION;
|
---|
| 853 | wCode := 9999;
|
---|
| 854 | bstrDescription := E.Message;
|
---|
| 855 | bstrSource := E.ClassName;
|
---|
| 856 | dwHelpContext := E.HelpContext;
|
---|
| 857 | end;
|
---|
| 858 | end;
|
---|
| 859 | end;
|
---|
| 860 |
|
---|
| 861 | { TEwbBehaviorController }
|
---|
| 862 |
|
---|
| 863 | destructor TEwbBehaviorController.Destroy;
|
---|
| 864 | begin
|
---|
| 865 | FreeAndNil(FBehaviors);
|
---|
| 866 | inherited;
|
---|
| 867 | end;
|
---|
| 868 |
|
---|
| 869 | procedure TEwbBehaviorController.Add(aBehavior: TBinBehavior);
|
---|
| 870 | begin
|
---|
| 871 | aBehavior.fController := Self;
|
---|
| 872 | if Alive then
|
---|
| 873 | begin
|
---|
| 874 | if FBehaviors = nil then
|
---|
| 875 | FBehaviors := TList.Create;
|
---|
| 876 | FBehaviors.Add(aBehavior);
|
---|
| 877 | end;
|
---|
| 878 | end;
|
---|
| 879 |
|
---|
| 880 | procedure TEwbBehaviorController.Remove(aBehavior: TBinBehavior);
|
---|
| 881 | begin
|
---|
| 882 | aBehavior.fController := nil;
|
---|
| 883 | if FBehaviors <> nil then
|
---|
| 884 | FBehaviors.Remove(aBehavior);
|
---|
| 885 | end;
|
---|
| 886 |
|
---|
| 887 | procedure TEwbBehaviorController.InvalidatePainterInfo;
|
---|
| 888 | var I: Integer;
|
---|
| 889 | begin
|
---|
| 890 | if FBehaviors <> nil then
|
---|
| 891 | for I := 0 to FBehaviors.Count - 1 do
|
---|
| 892 | with TBinBehavior(FBehaviors[I]) do
|
---|
| 893 | PaintSite.InvalidatePainterInfo;
|
---|
| 894 | end;
|
---|
| 895 |
|
---|
| 896 | procedure TEwbBehaviorController.InvalidateLayoutInfo;
|
---|
| 897 | var I: Integer;
|
---|
| 898 | begin
|
---|
| 899 | if FBehaviors <> nil then
|
---|
| 900 | for I := 0 to FBehaviors.Count - 1 do
|
---|
| 901 | with TBinBehavior(FBehaviors[I]) do
|
---|
| 902 | SiteLayout.InvalidateLayoutInfo;
|
---|
| 903 | end;
|
---|
| 904 |
|
---|
| 905 | procedure TEwbBehaviorController.setZOrder(const Value: TPaintZOrder);
|
---|
| 906 | begin
|
---|
| 907 | if FZOrder <> Value then
|
---|
| 908 | begin
|
---|
| 909 | FZOrder := Value;
|
---|
| 910 | InvalidatePainterInfo;
|
---|
| 911 | end;
|
---|
| 912 | end;
|
---|
| 913 |
|
---|
| 914 | procedure TEwbBehaviorController.setPainterProperties(
|
---|
| 915 | const Value: TPainterProperties);
|
---|
| 916 | var
|
---|
| 917 | lFlags: Integer;
|
---|
| 918 | I: TPainterProperty;
|
---|
| 919 | begin
|
---|
| 920 | lFlags := 0;
|
---|
| 921 | FPainterProperties := Value;
|
---|
| 922 | for I := Low(TPainterProperty) to High(TPainterProperty) do
|
---|
| 923 | if I in Value then
|
---|
| 924 | lFlags := lFlags or _pproperties[I];
|
---|
| 925 | FPainterFlags := lFlags;
|
---|
| 926 | InvalidatePainterInfo;
|
---|
| 927 | end;
|
---|
| 928 |
|
---|
| 929 | procedure TEwbBehaviorController.setLayoutMode(const Value: TLayoutMode);
|
---|
| 930 | begin
|
---|
| 931 | if FLayoutMode <> Value then
|
---|
| 932 | begin
|
---|
| 933 | FLayoutMode := Value;
|
---|
| 934 | InvalidateLayoutInfo;
|
---|
| 935 | end;
|
---|
| 936 | end;
|
---|
| 937 |
|
---|
| 938 | procedure TEwbBehaviorController.setLayoutTextDescent(
|
---|
| 939 | const Value: Integer);
|
---|
| 940 | begin
|
---|
| 941 | if FLayoutTextDescent <> Value then
|
---|
| 942 | begin
|
---|
| 943 | FLayoutTextDescent := Value;
|
---|
| 944 | InvalidateLayoutInfo;
|
---|
| 945 | end;
|
---|
| 946 | end;
|
---|
| 947 |
|
---|
| 948 | function TEwbBehaviorController.FindBehavior(const bstrBehavior,
|
---|
| 949 | bstrBehaviorUrl: WideString; const pSite: IElementBehaviorSite;
|
---|
| 950 | out ppBehavior: IElementBehavior): HRESULT;
|
---|
| 951 | begin
|
---|
| 952 | if Assigned(FOnCreateBehavior) then
|
---|
| 953 | ppBehavior := FOnCreateBehavior(Self, bstrBehavior, bstrBehaviorUrl, pSite);
|
---|
| 954 | if ppBehavior = nil then
|
---|
| 955 | ppBehavior := TBinBehavior.Create(Self) as IElementBehavior;
|
---|
| 956 | Result := S_OK;
|
---|
| 957 | end;
|
---|
| 958 |
|
---|
| 959 | function TEwbBehaviorController.Attach(Element: IHTMLElement2): Integer;
|
---|
| 960 | var
|
---|
| 961 | aName: Widestring;
|
---|
| 962 | {$IFDEF DELPHI5_UP}
|
---|
| 963 | SelfIntf: IElementBehaviorFactory;
|
---|
| 964 | {$ENDIF}
|
---|
| 965 | begin
|
---|
| 966 | aName := '';
|
---|
| 967 | if Assigned(FOnGetName) then
|
---|
| 968 | FOnGetName(Self, Element, aName);
|
---|
| 969 | {$IFDEF DELPHI5_UP}
|
---|
| 970 | GetInterface(IElementBehaviorFactory, SelfIntf);
|
---|
| 971 | Result := Element.addBehavior(aName, SelfIntf);
|
---|
| 972 | {$ELSE}
|
---|
| 973 | Result := Element.addBehavior(aName, Self as IElementBehaviorFactory);
|
---|
| 974 | {$ENDIF}
|
---|
| 975 | end;
|
---|
| 976 |
|
---|
| 977 | function TEwbBehaviorController.Attach(Element: IHTMLElement): Integer;
|
---|
| 978 | var
|
---|
| 979 | E: IHTMLElement2;
|
---|
| 980 | begin
|
---|
| 981 | if Supports(Element, IHTMLElement2, E) then
|
---|
| 982 | Result := Attach(E)
|
---|
| 983 | else
|
---|
| 984 | Result := 0;
|
---|
| 985 | end;
|
---|
| 986 |
|
---|
| 987 | procedure TEwbBehaviorController.DoInit(Sender: TBinBehavior);
|
---|
| 988 | begin
|
---|
| 989 | if Assigned(FOnInit) then
|
---|
| 990 | FOnInit(Sender);
|
---|
| 991 | end;
|
---|
| 992 |
|
---|
| 993 | procedure TEwbBehaviorController.DoDetach(Sender: TBinBehavior);
|
---|
| 994 | begin
|
---|
| 995 | if Assigned(FOnDetach) then
|
---|
| 996 | FOnDetach(Sender);
|
---|
| 997 | end;
|
---|
| 998 |
|
---|
| 999 | procedure TEwbBehaviorController.DoDraw(Sender: TBinBehavior; rcBounds,
|
---|
| 1000 | rcUpdate: TRect; lDrawFlags: Integer; Canvas: TCanvas);
|
---|
| 1001 | begin
|
---|
| 1002 | if Assigned(FOnDraw) then
|
---|
| 1003 | FOnDraw(Sender, rcBounds, rcUpdate, lDrawFlags, Canvas);
|
---|
| 1004 | end;
|
---|
| 1005 |
|
---|
| 1006 | procedure TEwbBehaviorController.DoDirectDraw(Sender: TBinBehavior;
|
---|
| 1007 | rcBounds, rcUpdate: TRect; lDrawFlags: Integer; pvDrawObject: Pointer);
|
---|
| 1008 | begin
|
---|
| 1009 | if Assigned(FOnDirectDraw) then
|
---|
| 1010 | FOnDirectDraw(Sender, rcBounds, rcUpdate, lDrawFlags, pvDrawObject);
|
---|
| 1011 | end;
|
---|
| 1012 |
|
---|
| 1013 | procedure TEwbBehaviorController.DoHitTestPoint(Sender: TBinBehavior;
|
---|
| 1014 | pt: TPoint; var pbHit: BOOL; var plPartID: Integer);
|
---|
| 1015 | begin
|
---|
| 1016 | if Assigned(FOnHitTest) then
|
---|
| 1017 | FOnHitTest(Sender, pt, pbHit, plPartID);
|
---|
| 1018 | end;
|
---|
| 1019 |
|
---|
| 1020 | procedure TEwbBehaviorController.DoPainterResize(Sender: TBinBehavior;
|
---|
| 1021 | Size: TSize);
|
---|
| 1022 | begin
|
---|
| 1023 | if Assigned(FOnResize) then
|
---|
| 1024 | FOnResize(Sender, size);
|
---|
| 1025 | end;
|
---|
| 1026 |
|
---|
| 1027 | procedure TEwbBehaviorController.GetPainterInfo(Sender: TBinBehavior;
|
---|
| 1028 | var pInfo: _HTML_PAINTER_INFO);
|
---|
| 1029 | begin
|
---|
| 1030 | if Assigned(FOnPainterInfo) then
|
---|
| 1031 | FOnPainterInfo(Sender, pInfo);
|
---|
| 1032 | end;
|
---|
| 1033 |
|
---|
| 1034 | procedure TEwbBehaviorController.DoNotify(Sender: TBinBehavior;
|
---|
| 1035 | lEvent: Integer);
|
---|
| 1036 | begin
|
---|
| 1037 | case lEvent of
|
---|
| 1038 | BEHAVIOREVENT_CONTENTREADY:
|
---|
| 1039 | if Assigned(FOnContentReady) then
|
---|
| 1040 | FOnContentReady(Sender);
|
---|
| 1041 | BEHAVIOREVENT_DOCUMENTREADY:
|
---|
| 1042 | if Assigned(FOnDocReady) then
|
---|
| 1043 | FOnDocReady(Sender);
|
---|
| 1044 | BEHAVIOREVENT_DOCUMENTCONTEXTCHANGE:
|
---|
| 1045 | if Assigned(FOnDocContextChange) then
|
---|
| 1046 | FOnDocContextChange(Sender);
|
---|
| 1047 | BEHAVIOREVENT_CONTENTSAVE:
|
---|
| 1048 | if Assigned(FOnContentSave) then
|
---|
| 1049 | FOnContentSave(Sender);
|
---|
| 1050 | BEHAVIOREVENT_APPLYSTYLE:
|
---|
| 1051 | if Assigned(FOnApplyStyle) then
|
---|
| 1052 | FOnApplyStyle(Sender);
|
---|
| 1053 | end;
|
---|
| 1054 | end;
|
---|
| 1055 |
|
---|
| 1056 | procedure TEwbBehaviorController.DoLayoutMapSize(Sender: TBinBehavior;
|
---|
| 1057 | psizeIn: PSize; var prcOut: TRect);
|
---|
| 1058 | begin
|
---|
| 1059 | if Assigned(fLayoutMapSize) then
|
---|
| 1060 | fLayoutMapSize(Sender, psizeIn, prcOut);
|
---|
| 1061 | end;
|
---|
| 1062 |
|
---|
| 1063 | procedure TEwbBehaviorController.DoLayoutPosition(Sender: TBinBehavior;
|
---|
| 1064 | lFlags: Integer; var pptTopLeft: TPoint);
|
---|
| 1065 | begin
|
---|
| 1066 | if Assigned(fLayoutPosition) then
|
---|
| 1067 | fLayoutPosition(Sender, lFlags, pptTopLeft);
|
---|
| 1068 | end;
|
---|
| 1069 |
|
---|
| 1070 | procedure TEwbBehaviorController.DoLayoutSize(Sender: TBinBehavior;
|
---|
| 1071 | dwFlags: Integer; sizeContent: TSize; var pptTranslateBy,
|
---|
| 1072 | pptTopLeft: TPoint; var psizeProposed: TSize);
|
---|
| 1073 | begin
|
---|
| 1074 | if Assigned(FLayoutSize) then
|
---|
| 1075 | FLayoutSize(Sender, dwFlags, sizeContent, pptTranslateBy, pptTopLeft,
|
---|
| 1076 | psizeProposed);
|
---|
| 1077 | end;
|
---|
| 1078 |
|
---|
| 1079 | procedure TEwbBehaviorController.DoTextDescent(Sender: TBinBehavior;
|
---|
| 1080 | var plDescent: Integer);
|
---|
| 1081 | begin
|
---|
| 1082 | plDescent := Self.LayoutTextDescent;
|
---|
| 1083 | if Assigned(FOnLayoutTextDescent) then
|
---|
| 1084 | FOnLayoutTextDescent(Sender, plDescent);
|
---|
| 1085 | end;
|
---|
| 1086 |
|
---|
| 1087 | procedure TEwbBehaviorController.DoEventTarget(Sender: TBinBehavior;
|
---|
| 1088 | var ppElement: IHTMLElement);
|
---|
| 1089 | begin
|
---|
| 1090 | if Assigned(FOnEventTarget) then
|
---|
| 1091 | FOnEventTarget(Sender, ppElement);
|
---|
| 1092 | end;
|
---|
| 1093 |
|
---|
| 1094 | procedure TEwbBehaviorController.DoSetCursor(Sender: TBinBehavior;
|
---|
| 1095 | lPartID: Integer);
|
---|
| 1096 | begin
|
---|
| 1097 | if Assigned(FOnSetCursor) then
|
---|
| 1098 | FOnSetCursor(Sender, lPartID);
|
---|
| 1099 | end;
|
---|
| 1100 |
|
---|
| 1101 | function TEwbBehaviorController.DoStringFromPartID(Sender: TBinBehavior;
|
---|
| 1102 | lPartID: Integer; out pbstrPart: WideString): Boolean;
|
---|
| 1103 | begin
|
---|
| 1104 | Result := Assigned(FOnStringFromPartID);
|
---|
| 1105 | if Result then
|
---|
| 1106 | FOnStringFromPartID(Sender, lPartID, pbstrPart);
|
---|
| 1107 | end;
|
---|
| 1108 |
|
---|
| 1109 | procedure TEwbBehaviorController.DoOverlayMove(Sender: TBinBehavior;
|
---|
| 1110 | rcDevice: TRect);
|
---|
| 1111 | begin
|
---|
| 1112 | if Assigned(FOnOverlayMove) then
|
---|
| 1113 | FOnOverlayMove(Sender, rcDevice);
|
---|
| 1114 | end;
|
---|
| 1115 |
|
---|
| 1116 | procedure TEwbBehaviorController.DoGetFocusRect(Sender: TBinBehavior;
|
---|
| 1117 | var pRect: TRect);
|
---|
| 1118 | begin
|
---|
| 1119 | if Assigned(FOnGetFocusRect) then
|
---|
| 1120 | FOnGetFocusRect(Sender, pRect);
|
---|
| 1121 | end;
|
---|
| 1122 |
|
---|
| 1123 | procedure TEwbBehaviorController.DoGetSubmitInfo(Sender: TBinBehavior;
|
---|
| 1124 | pSubmitData: IHTMLSubmitData);
|
---|
| 1125 | begin
|
---|
| 1126 | if Assigned(FOnGetSubmitInfo) then
|
---|
| 1127 | FOnGetSubmitInfo(Sender, pSubmitData);
|
---|
| 1128 | end;
|
---|
| 1129 |
|
---|
| 1130 | procedure TEwbBehaviorController.DoResetSubmit(Sender: TBinBehavior);
|
---|
| 1131 | begin
|
---|
| 1132 | if Assigned(FOnResetSubmit) then
|
---|
| 1133 | FOnResetSubmit(Sender);
|
---|
| 1134 | end;
|
---|
| 1135 |
|
---|
| 1136 | procedure TEwbBehaviorController.DoGetIdOfName(Sender: TBinBehavior;
|
---|
| 1137 | const name: widestring; var id: Integer);
|
---|
| 1138 | begin
|
---|
| 1139 | if Assigned(FOnGetIdOfName) then
|
---|
| 1140 | FOnGetIdOfName(Sender, name, id);
|
---|
| 1141 | end;
|
---|
| 1142 |
|
---|
| 1143 | procedure TEwbBehaviorController.DoGetProperty(Sender: TBinBehavior;
|
---|
| 1144 | DispID: Integer; VarResult: POleVariant; Params: TDispParams;
|
---|
| 1145 | var Rezult: HRESULT);
|
---|
| 1146 | begin
|
---|
| 1147 | if Assigned(FOnGetProperty) then
|
---|
| 1148 | FOnGetProperty(Sender, DispID, VarResult, Params, Rezult);
|
---|
| 1149 | end;
|
---|
| 1150 |
|
---|
| 1151 | procedure TEwbBehaviorController.DoInvoke(Sender: TBinBehavior;
|
---|
| 1152 | DispID: Integer; VarResult: POleVariant; Params: TDispParams;
|
---|
| 1153 | var Rezult: HRESULT);
|
---|
| 1154 | begin
|
---|
| 1155 | if Assigned(FOnInvoke) then
|
---|
| 1156 | FOnInvoke(Sender, DispID, VarResult, Params, Rezult);
|
---|
| 1157 | end;
|
---|
| 1158 |
|
---|
| 1159 | procedure TEwbBehaviorController.DoPutProperty(Sender: TBinBehavior;
|
---|
| 1160 | DispID: Integer; Params: TDispParams; var Rezult: HRESULT);
|
---|
| 1161 | begin
|
---|
| 1162 | if Assigned(FOnPutProperty) then
|
---|
| 1163 | FOnPutProperty(Sender, DispID, Params, Rezult);
|
---|
| 1164 | end;
|
---|
| 1165 |
|
---|
| 1166 | end.
|
---|