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
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384 | , IElementBehaviorLayout
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385 | , IElementBehaviorLayout2
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386 | , IElementBehaviorFocus
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387 | , IElementBehaviorSubmit
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388 | )
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389 | private
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390 | fController: TEwbBehaviorController;
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391 | fSite: IElementBehaviorSite;
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392 | FElement: IHTMLElement;
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393 | FEventsLink: IHubLink;
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394 | fState: TBihState;
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395 | function getSiteOM: IElementBehaviorSiteOM;
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396 | function getPaintSite: IHTMLPaintSite;
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397 | function getDefaults: IHTMLElementDefaults;
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398 | function getSiteLayout: IElementBehaviorSiteLayout;
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399 | function getSiteLayout2: IElementBehaviorSiteLayout2;
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400 | protected
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401 | {IDispatch}
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402 | function GetIDsOfNames(const IID: TGUID; Names: Pointer;
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403 | NameCount, LocaleID: Integer; DispIDs: Pointer): HRESULT; override;
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404 | stdcall;
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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.
|
---|