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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: AknTreeListView physics handler |
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15 * |
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16 */ |
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17 |
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18 #include <aknphysics.h> |
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19 #include <aknphysicsobserveriface.h> |
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20 #include <babitflags.h> |
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21 #include <eiksbobs.h> |
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22 #include <eikon.hrh> // EKeyOK |
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23 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
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24 #include <aknlistloadertfx.h> |
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25 #include <aknlistboxtfx.h> |
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26 #endif // RD_UI_TRANSITION_EFFECTS_LIST |
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27 |
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28 #include <touchfeedback.h> |
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29 |
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30 #include "akntree.h" |
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31 #include "akntreelistview.h" |
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32 #include "akntreelistphysicshandler.h" |
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33 #include "akntreelist.h" |
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34 #include "akntrace.h" // trace |
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35 |
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36 // Tree list view physics handler flag definitions. |
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37 enum TAknTreeListPhysicsHandlerFlags |
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38 { |
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39 // pressed-down highlight should be drawn to focused item |
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40 EFlagPDHighlightToFocusedItem, |
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41 // pressed-down highlight should be drawn to nonfocused item |
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42 EFlagPDHighlightToNonFocusedItem, |
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43 EFlagButtonUpReceived, |
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44 EFlagUpdatingView |
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45 }; |
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46 |
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47 |
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48 |
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49 // ======== MEMBER FUNCTIONS ======== |
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50 |
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51 // --------------------------------------------------------------------------- |
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52 // CAknTreeListPhysicsHandler::NewL |
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53 // --------------------------------------------------------------------------- |
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54 // |
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55 CAknTreeListPhysicsHandler* CAknTreeListPhysicsHandler::NewL( |
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56 CAknTreeListView* aTreeListView, |
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57 CAknTree* aTree, |
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58 RArray<TAknTreeListViewItem>* aItems ) |
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59 { |
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60 CAknTreeListPhysicsHandler* self = |
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61 CAknTreeListPhysicsHandler::NewLC( aTreeListView, aTree, aItems ); |
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62 CleanupStack::Pop( self ); |
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63 return self; |
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64 } |
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65 |
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66 |
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67 // --------------------------------------------------------------------------- |
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68 // CAknTreeListPhysicsHandler::NewLC |
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69 // --------------------------------------------------------------------------- |
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70 // |
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71 CAknTreeListPhysicsHandler* CAknTreeListPhysicsHandler::NewLC( |
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72 CAknTreeListView* aTreeListView, |
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73 CAknTree* aTree, |
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74 RArray<TAknTreeListViewItem>* aItems ) |
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75 { |
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76 CAknTreeListPhysicsHandler* self |
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77 = new ( ELeave ) CAknTreeListPhysicsHandler( |
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78 aTreeListView, aTree, aItems ); |
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79 CleanupStack::PushL( self ); |
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80 self->ConstructL(); |
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81 return self; |
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82 } |
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83 |
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84 |
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85 // --------------------------------------------------------------------------- |
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86 // CAknTreeListPhysicsHandler::~CAknTreeListPhysicsHandler |
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87 // --------------------------------------------------------------------------- |
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88 // |
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89 CAknTreeListPhysicsHandler::~CAknTreeListPhysicsHandler() |
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90 { |
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91 delete iHighlightTimer; |
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92 delete iPhysics; |
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93 } |
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94 |
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95 |
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96 // --------------------------------------------------------------------------- |
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97 // CAknTreeListPhysicsHandler::HandlePointerEventL |
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98 // --------------------------------------------------------------------------- |
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99 // |
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100 void CAknTreeListPhysicsHandler::HandlePointerEventL( |
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101 const TPointerEvent& aPointerEvent, const TInt& aViewLevel, |
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102 TBool aMarking, TBool aShiftPressed, TBool aCtrlPressed ) |
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103 { |
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104 _AKNTRACE_FUNC_ENTER; |
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105 if ( aPointerEvent.iType == TPointerEvent::EButton1Down && iEnableEvents ) |
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106 { |
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107 iEventsBlocked = EFalse; |
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108 iEnableEvents = EFalse; |
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109 } |
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110 if ( iEventsBlocked ) |
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111 { |
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112 _AKNTRACE("CAknTreeListPhysicsHandler::%s Return due to event blocked", __FUNCTION__); |
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113 _AKNTRACE_FUNC_EXIT; |
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114 return; |
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115 } |
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116 |
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117 // Panning/flicking logic |
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118 |
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119 // EButton1Down |
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120 |
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121 TBool wasFlicking( EFalse ); |
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122 TBool wasScrolling = ( iPhysics->OngoingPhysicsAction() != |
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123 CAknPhysics::EAknPhysicsActionNone ); |
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124 |
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125 if ( aPointerEvent.iType == TPointerEvent::EButton1Down && |
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126 iViewRect.Contains( aPointerEvent.iPosition ) ) |
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127 { |
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128 iPenDown = ETrue; |
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129 if ( iPhysics->OngoingPhysicsAction() == CAknPhysics::EAknPhysicsActionFlicking ) |
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130 { |
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131 // flicking was ongoing when content stopped |
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132 if ( iFeedback ) |
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133 { |
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134 iFeedback->InstantFeedback( ETouchFeedbackBasic ); |
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135 } |
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136 wasFlicking = ETrue; |
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137 } |
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138 |
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139 iFlags.Clear( EFlagButtonUpReceived ); |
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140 iPosition = aPointerEvent.iPosition; |
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141 iStartPosition = aPointerEvent.iPosition; |
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142 |
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143 iPhysics->StopPhysics(); |
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144 iPhysics->ResetFriction(); |
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145 |
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146 iStartTime.HomeTime(); |
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147 iHighlightTimer->Cancel(); |
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148 |
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149 iItemToBeFocused = NULL; |
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150 iIndexToBeFocused = -1; |
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151 iItemToBeSelected = NULL; |
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152 |
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153 iPanningActivated = EFalse; |
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154 |
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155 iPlayFeedbackOnUp = EFalse; |
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156 |
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157 // Check if marquee needs to be disabled |
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158 if ( iTreeListView->SingleClickEnabled() |
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159 && iTree->IsMarqueeOn() ) |
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160 { |
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161 iTree->EnableMarquee( EFalse ); |
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162 } |
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163 |
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164 iEmptyAreaClicked = EmptyAreaClicked( aPointerEvent.iPosition ); |
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165 } |
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166 |
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167 // EDrag |
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168 |
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169 if ( aPointerEvent.iType == TPointerEvent::EDrag ) |
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170 { |
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171 TInt distanceFromStart( iStartPosition.iY - aPointerEvent.iPosition.iY ); |
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172 |
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173 if ( !iPanningActivated && Abs( distanceFromStart ) > DragThreshold() ) |
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174 { |
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175 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
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176 MAknListBoxTfx* tfxApi = CAknListLoader::TfxApi( iTfxGc ); |
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177 |
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178 if ( tfxApi ) |
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179 { |
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180 tfxApi->EnableEffects( EFalse ); |
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181 } |
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182 #endif // RD_UI_TRANSITION_EFFECTS_LIST |
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183 |
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184 iPanningActivated = ETrue; |
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185 iEmptyAreaClicked = EFalse; |
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186 |
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187 iHighlightTimer->Cancel(); |
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188 iItemToBeFocused = NULL; |
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189 iItemToBeSelected = NULL; |
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190 iIndexToBeFocused = -1; |
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191 iTreeListView->SetPressedDownState( EFalse ); |
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192 iPosition = aPointerEvent.iPosition; |
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193 |
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194 _AKNTRACE( |
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195 "CAknTreeListPhysicsHandler::[%s] Report EEventPanningStarted", |
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196 __FUNCTION__); |
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197 |
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198 if ( iTreeListView->SingleClickEnabled() ) |
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199 { |
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200 iTreeListView->EnableHighlight( EFalse ); |
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201 iTreeListView->CancelLongTapDetectorL(); |
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202 } |
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203 |
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204 iTreeListView->ReportTreeListEvent( |
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205 MAknTreeListObserver::EEventPanningStarted, |
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206 KAknTreeIIDNone ); |
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207 } |
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208 |
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209 if ( iPanningActivated ) |
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210 { |
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211 TInt deltaY( iPosition.iY - aPointerEvent.iPosition.iY ); |
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212 iPosition = aPointerEvent.iPosition; |
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213 |
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214 TPoint deltaPoint( 0, deltaY ); |
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215 _AKNTRACE( |
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216 "CAknTreeListPhysicsHandler::[%s] Panning deltaPoint.iY = %d", |
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217 __FUNCTION__, deltaY ); |
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218 iPhysics->RegisterPanningPosition( deltaPoint ); |
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219 } |
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220 else if ( iTreeListView->SingleClickEnabled() ) |
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221 { |
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222 iTreeListView->LongTapPointerEventL( aPointerEvent ); |
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223 } |
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224 } |
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225 |
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226 // EButton1Up |
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227 |
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228 if ( aPointerEvent.iType == TPointerEvent::EButton1Up ) |
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229 { |
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230 iTreeListView->SetPressedDownState( EFalse ); |
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231 if ( iTreeListView->SingleClickEnabled() && !aMarking ) |
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232 { |
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233 iHighlightTimer->Cancel(); |
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234 iTreeListView->EnableHighlight( EFalse ); |
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235 iTreeListView->LongTapPointerEventL( aPointerEvent ); |
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236 } |
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237 iFlags.Set( EFlagButtonUpReceived ); |
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238 iTreeListView->DrawDeferred(); |
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239 |
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240 TInt distance = iStartPosition.iY - aPointerEvent.iPosition.iY; |
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241 TPoint drag( 0, distance ); |
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242 |
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243 if ( iPhysics->StartPhysics( drag, iStartTime ) ) |
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244 { |
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245 if ( iPanningActivated ) |
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246 { |
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247 _AKNTRACE( |
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248 "CAknTreeListPhysicsHandler::[%s] Report EEventPanningStopped", |
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249 __FUNCTION__); |
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250 iTreeListView->ReportTreeListEvent( |
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251 MAknTreeListObserver::EEventPanningStopped, |
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252 KAknTreeIIDNone ); |
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253 } |
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254 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
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255 // Transitions are already suspended if listbox was panned. |
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256 if ( !iPanningActivated ) |
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257 { |
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258 MAknListBoxTfx* tfxApi = CAknListLoader::TfxApi( iTfxGc ); |
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259 |
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260 if ( tfxApi ) |
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261 { |
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262 tfxApi->EnableEffects( EFalse ); |
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263 } |
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264 } |
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265 #endif // RD_UI_TRANSITION_EFFECTS_LIST |
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266 |
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267 if ( iPhysics->OngoingPhysicsAction() == CAknPhysics::EAknPhysicsActionFlicking ) |
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268 { |
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269 iItemToBeFocused = NULL; |
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270 iItemToBeSelected = NULL; |
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271 iIndexToBeFocused = -1; |
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272 iHighlightTimer->Cancel(); |
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273 } |
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274 |
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275 if ( iItemToBeSelected != NULL ) |
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276 { |
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277 iTreeListView->SelectItem( iItemToBeSelected ); |
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278 iItemToBeSelected = NULL; |
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279 } |
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280 _AKNTRACE( |
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281 "CAknTreeListPhysicsHandler::[%s] Report EEventFlickStarted", |
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282 __FUNCTION__); |
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283 iTreeListView->ReportTreeListEvent( |
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284 MAknTreeListObserver::EEventFlickStarted, |
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285 KAknTreeIIDNone ); |
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286 _AKNTRACE_FUNC_EXIT; |
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287 return; |
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288 } |
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289 |
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290 if ( iPlayFeedbackOnUp ) |
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291 { |
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292 // touch down has occured on an item, which requires feedback |
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293 // also on up event -> play basic list feedback |
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294 if ( iFeedback ) |
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295 { |
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296 TTouchLogicalFeedback fbType = ETouchFeedbackList; |
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297 if ( iItemToBeSelected != NULL ) |
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298 { |
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299 if ( iItemToBeSelected->IsLeaf() && iItemToBeSelected->IsMarkable() ) |
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300 { |
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301 fbType = ETouchFeedbackCheckbox; |
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302 } |
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303 else if ( iItemToBeSelected->Node() != NULL ) |
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304 { |
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305 if ( iItemToBeSelected->Node()->ChildCount() == 0 && |
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306 iItemToBeSelected->Node()->IsMarkable() ) |
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307 { |
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308 fbType = ETouchFeedbackCheckbox; |
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309 } |
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310 } |
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311 iFeedback->InstantFeedback( iTreeListView, |
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312 fbType, |
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313 ETouchFeedbackVibra, |
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314 aPointerEvent ); |
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315 } |
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316 |
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317 } |
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318 } |
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319 |
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320 if ( iItemToBeSelected != NULL && !aMarking) |
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321 { |
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322 iTreeListView->SelectItem( iItemToBeSelected ); |
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323 iItemToBeSelected = NULL; |
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324 } |
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325 |
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326 if ( iItemToBeSelected == NULL && iEmptyAreaClicked ) |
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327 { |
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328 if ( iTree->VisibleItemCount() > 0 ) |
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329 { |
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330 iTreeListView->ReportTreeListEvent( |
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331 MAknTreeListObserver::EEmptyAreaClicked, |
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332 KAknTreeIIDNone ); |
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333 } |
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334 else |
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335 { |
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336 iTreeListView->ReportTreeListEvent( |
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337 MAknTreeListObserver::EEmptyListClicked, |
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338 KAknTreeIIDNone ); |
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339 } |
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340 } |
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341 } |
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342 |
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343 // Item handling logic |
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344 |
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345 TPoint adjustedPosition( aPointerEvent.iPosition ); |
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346 adjustedPosition.iY += Offset(); |
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347 |
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348 for ( TInt ii = 0; ii < iItems->Count(); ++ii ) |
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349 { |
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350 CAknTreeItem* item = (*iItems)[ii].Item(); |
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351 |
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352 if ( item && (*iItems)[ii].Rect().Contains( adjustedPosition ) ) |
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353 { |
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354 if ( aPointerEvent.iType == TPointerEvent::EButton1Down ) |
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355 { |
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356 // Marking mode |
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357 if ( aMarking ) |
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358 { |
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359 TBool drawNow = ( item == iTreeListView->FocusedItem() ); |
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360 if ( aShiftPressed ) |
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361 { |
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362 iTreeListView->MarkItems( iTreeListView->FocusedItem(), item, |
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363 !item->IsMarked(), drawNow ); |
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364 } |
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365 else if ( aCtrlPressed ) |
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366 { |
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367 iTreeListView->MarkItem( item, !item->IsMarked(), drawNow ); |
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368 } |
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369 } |
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370 else if ( iTreeListView->SingleClickEnabled() |
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371 && !wasFlicking ) |
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372 { |
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373 iItemToBeSelected = item; |
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374 iTreeListView->SetFocusedItem( item, ii, EFalse ); |
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375 // Start long tap detector |
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376 if ( !iTreeListView->HasMarkedItemsL() ) |
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377 { |
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378 iTreeListView->LongTapPointerEventL( aPointerEvent ); |
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379 } |
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380 } |
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381 if ( ii != iTreeListView->FocusedItemIndex() ) |
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382 { |
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383 iItemToBeFocused = item; |
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384 iIndexToBeFocused = ii; |
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385 // node will be collapsed/expanded only if flicking was not ongoing |
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386 if ( item->Node() && !wasFlicking ) |
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387 { |
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388 iItemToBeSelected = item; |
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389 // Pressed down highlight to nonfocused item |
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390 iFlags.Set( EFlagPDHighlightToNonFocusedItem ); |
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391 } |
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392 // touch down on non-focused item, while not flicking |
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393 if ( iFeedback && !wasFlicking ) |
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394 { |
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395 if ( item->Node() ) |
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396 { |
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397 // item is a non-focused node, play basic list |
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398 // feedback |
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399 iFeedback->InstantFeedback( iTreeListView, |
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400 ETouchFeedbackList ); |
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401 |
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402 // next up event causes for the node to collapse, |
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403 // play feedback on up event |
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404 iPlayFeedbackOnUp = ETrue; |
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405 } |
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406 else |
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407 { |
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408 // item is a non-focused leaf, play sensitive |
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409 // feedback |
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410 iFeedback->InstantFeedback( iTreeListView, |
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411 ETouchFeedbackSensitiveList ); |
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412 } |
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413 } |
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414 } |
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415 // item will be selected only if flicking was not ongoing |
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416 else if ( !wasFlicking ) |
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417 { |
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418 iItemToBeSelected = item; |
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419 // Pressed down highlight to focused item |
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420 iFlags.Set( EFlagPDHighlightToFocusedItem ); |
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421 // touch down on focused item, while not flicking |
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422 if ( iFeedback ) |
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423 { |
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424 iFeedback->InstantFeedback( iTreeListView, |
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425 ETouchFeedbackList ); |
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426 |
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427 // next up event cause an action on the screen, |
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428 // play feedback on up event |
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429 iPlayFeedbackOnUp = ETrue; |
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430 } |
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431 } |
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432 if ( !aMarking ) |
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433 { |
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434 // timer will be launched everytime, but not |
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435 // if flicking was ongoing AND it was stopped by tapping |
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436 // to highlighted item or to folder (=node) |
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437 if ( !( wasFlicking && iItemToBeSelected != NULL ) ) |
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438 { |
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439 LaunchHighlightTimer( wasScrolling ); |
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440 } |
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441 } |
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442 else |
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443 { |
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444 // Pressed down highlight or highlight timer |
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445 // are not used in marking mode. |
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446 SetHighlight(); |
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447 } |
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448 } |
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449 (*iItems)[ii].HandlePointerEventL( aPointerEvent, aViewLevel, |
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450 iTreeListView->Indention(), iTreeListView->IndentionWidth() ); |
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451 } |
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452 } |
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453 _AKNTRACE_FUNC_EXIT; |
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454 } |
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455 |
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456 // --------------------------------------------------------------------------- |
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457 // CAknTreeListPhysicsHandler::HandleScrollEventL |
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458 // --------------------------------------------------------------------------- |
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459 // |
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460 void CAknTreeListPhysicsHandler::HandleScrollEventL( |
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461 TEikScrollEvent aEventType, const TInt& aThumbPosition ) |
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462 { |
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463 switch ( aEventType ) |
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464 { |
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465 case EEikScrollUp: |
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466 case EEikScrollDown: |
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467 case EEikScrollPageUp: |
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468 case EEikScrollPageDown: |
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469 case EEikScrollThumbDragVert: |
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470 { |
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471 iScrollIndex = aThumbPosition; |
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472 ScrollView( ETrue ); |
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473 } |
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474 // fall through |
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475 default: |
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476 { |
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477 StopPhysics(); |
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478 } |
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479 } |
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480 } |
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481 |
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482 // ----------------------------------------------------------------------------- |
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483 // CAknTreeListPhysicsHandler::HandleKeyEvent |
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484 // ----------------------------------------------------------------------------- |
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485 // |
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486 void CAknTreeListPhysicsHandler::HandleKeyEvent( TInt aKeyCode ) |
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487 { |
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488 |
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489 if ( aKeyCode != EKeyLeftArrow && aKeyCode != EKeyRightArrow && |
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490 aKeyCode != EKeyUpArrow && aKeyCode != EKeyDownArrow && |
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491 aKeyCode != EKeyEnter && aKeyCode != EKeyOK ) |
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492 { |
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493 return; |
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494 } |
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495 |
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496 TInt lastItem = LastVisibleItemIndex(); |
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497 TInt firstItem = FirstVisibleItemIndex(); |
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498 TInt focusedItem = iTreeListView->FocusedItemIndex(); |
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499 |
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500 // Offset used in drawing |
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501 TInt panningOffset = Offset(); |
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502 // When physics is activated view contains partial items |
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503 TInt viewOffset( |
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504 iItemHeight * ( lastItem - firstItem + 1 ) - iViewRect.Height() + iListTopOffset ); |
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505 |
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506 // Handle list top item |
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507 if ( panningOffset != 0 && ( firstItem == focusedItem || |
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508 firstItem == focusedItem + 1 ) ) |
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509 { |
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510 iScrollIndex -= panningOffset; |
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511 ScrollView( EFalse ); |
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512 } |
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513 // Handle list bottom item |
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514 else if ( panningOffset != viewOffset && ( lastItem == focusedItem || |
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515 lastItem == focusedItem - 1 ) ) |
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516 { |
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517 iScrollIndex -= panningOffset - viewOffset; |
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518 ScrollView( EFalse ); |
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519 } |
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520 } |
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521 |
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522 // --------------------------------------------------------------------------- |
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523 // CAknTreeListPhysicsHandler::SetViewRect |
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524 // --------------------------------------------------------------------------- |
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525 // |
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526 void CAknTreeListPhysicsHandler::SetViewRect( const TRect& aRect ) |
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527 { |
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528 iViewRect = aRect; |
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529 |
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530 // Calculate list top offset |
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531 TRect firstItemRect( ( *iItems )[ 0 ].Rect() ); |
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532 if ( iViewRect.iTl.iY < firstItemRect.iTl.iY ) |
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533 { |
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534 iListTopOffset = firstItemRect.iTl.iY - iViewRect.iTl.iY; |
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535 } |
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536 } |
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537 |
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538 |
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539 // --------------------------------------------------------------------------- |
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540 // CAknTreeListPhysicsHandler::ViewRect |
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541 // --------------------------------------------------------------------------- |
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542 // |
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543 TRect CAknTreeListPhysicsHandler::ViewRect() const |
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544 { |
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545 return iViewRect; |
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546 } |
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547 |
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548 |
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549 // --------------------------------------------------------------------------- |
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550 // CAknTreeListPhysicsHandler::SetItemHeight |
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551 // --------------------------------------------------------------------------- |
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552 // |
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553 void CAknTreeListPhysicsHandler::SetItemHeight( const TInt& aHeight ) |
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554 { |
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555 if( iScrollIndex > 0 && iItemHeight > 0 && aHeight != iItemHeight ) |
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556 { |
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557 iScrollIndex = ( iScrollIndex / iItemHeight ) * aHeight; |
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558 } |
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559 iItemHeight = aHeight; |
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560 } |
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561 |
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562 |
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563 // --------------------------------------------------------------------------- |
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564 // Offset |
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565 // --------------------------------------------------------------------------- |
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566 // |
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567 TInt CAknTreeListPhysicsHandler::Offset() const |
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568 { |
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569 if ( iItemHeight == 0) |
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570 { |
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571 return 0; |
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572 } |
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573 |
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574 TInt currentLine = iScrollIndex / iItemHeight; |
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575 |
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576 if ( currentLine < 0) |
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577 { |
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578 return iScrollIndex % iItemHeight + iItemHeight * currentLine; |
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579 } |
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580 else if ( currentLine >= iTree->VisibleItemCount() ) |
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581 { |
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582 return iScrollIndex - ( iItemHeight * ( iTree->VisibleItemCount() - 1 ) ); |
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583 } |
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584 return iScrollIndex % iItemHeight; |
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585 } |
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586 |
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587 |
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588 // --------------------------------------------------------------------------- |
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589 // InitPhysicsL |
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590 // --------------------------------------------------------------------------- |
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591 // |
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592 void CAknTreeListPhysicsHandler::InitPhysicsL() |
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593 { |
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594 TSize totalSize( iViewRect.Width(), WorldHeight() ); |
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595 TSize viewSize( iViewRect.Width(), iViewRect.Height() ); |
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596 |
|
597 iPhysics->InitPhysicsL( totalSize, viewSize, EFalse ); |
|
598 |
|
599 if ( iScrollIndex < 0 ) |
|
600 { |
|
601 iScrollIndex = 0; |
|
602 ScrollView( EFalse ); |
|
603 } |
|
604 } |
|
605 |
|
606 |
|
607 // --------------------------------------------------------------------------- |
|
608 // CAknTreeListPhysicsHandler::ResetEventBlockingStatus |
|
609 // --------------------------------------------------------------------------- |
|
610 // |
|
611 void CAknTreeListPhysicsHandler::ResetEventBlockingStatus() |
|
612 { |
|
613 iEventsBlocked = EFalse; |
|
614 iEnableEvents = EFalse; |
|
615 } |
|
616 |
|
617 |
|
618 // --------------------------------------------------------------------------- |
|
619 // GetVScrollbarParams |
|
620 // --------------------------------------------------------------------------- |
|
621 // |
|
622 void CAknTreeListPhysicsHandler::GetVScrollbarParams( TInt& aThumbSpan, |
|
623 TInt& aThumbPos, |
|
624 TInt& aScrollSpan ) |
|
625 { |
|
626 aThumbSpan = iViewRect.Height() - iViewRect.Height() % 2; |
|
627 aThumbPos = iScrollIndex; |
|
628 |
|
629 TInt span1( aThumbPos + aThumbSpan ); |
|
630 TInt totalHeight( iTree->VisibleItemCount() * iItemHeight ); |
|
631 TInt span2( totalHeight - aThumbSpan ); |
|
632 |
|
633 aScrollSpan = Max( Min( span1, span2 ), totalHeight ); |
|
634 } |
|
635 |
|
636 |
|
637 // --------------------------------------------------------------------------- |
|
638 // FocusedItemVisible |
|
639 // --------------------------------------------------------------------------- |
|
640 // |
|
641 TBool CAknTreeListPhysicsHandler::FocusedItemVisible( |
|
642 const TInt& aFocusedIndex ) const |
|
643 { |
|
644 TBool visible( EFalse ); |
|
645 if ( aFocusedIndex > -1 && aFocusedIndex < iItems->Count() ) |
|
646 { |
|
647 visible = ETrue; |
|
648 TInt topY( ( *iItems )[ aFocusedIndex ].Rect().iTl.iY - Offset() ); |
|
649 TInt bottomY( ( *iItems )[ aFocusedIndex ].Rect().iBr.iY - Offset() ); |
|
650 if ( bottomY < iViewRect.iTl.iY || topY > iViewRect.iBr.iY ) |
|
651 { |
|
652 visible = EFalse; |
|
653 } |
|
654 } |
|
655 return visible; |
|
656 } |
|
657 |
|
658 |
|
659 // --------------------------------------------------------------------------- |
|
660 // FirstVisibleItemIndex |
|
661 // --------------------------------------------------------------------------- |
|
662 // |
|
663 TInt CAknTreeListPhysicsHandler::FirstVisibleItemIndex() const |
|
664 { |
|
665 TInt firstItemIndex( -1 ); |
|
666 if ( iItems->Count() ) |
|
667 { |
|
668 firstItemIndex = 0; |
|
669 TBool firstItemFound( EFalse ); |
|
670 while ( firstItemIndex < iItems->Count() && !firstItemFound ) |
|
671 { |
|
672 TInt bottomY( |
|
673 ( *iItems )[ firstItemIndex ].Rect().iBr.iY - Offset() ); |
|
674 if ( bottomY < iViewRect.iTl.iY ) |
|
675 { |
|
676 firstItemIndex++; |
|
677 } |
|
678 else |
|
679 { |
|
680 firstItemFound = ETrue; |
|
681 break; |
|
682 } |
|
683 } |
|
684 if ( !firstItemFound ) |
|
685 { |
|
686 firstItemIndex = 0; |
|
687 } |
|
688 } |
|
689 return firstItemIndex; |
|
690 } |
|
691 |
|
692 |
|
693 // --------------------------------------------------------------------------- |
|
694 // LastVisibleItemIndex |
|
695 // --------------------------------------------------------------------------- |
|
696 // |
|
697 TInt CAknTreeListPhysicsHandler::LastVisibleItemIndex() const |
|
698 { |
|
699 TInt lastItemIndex( -1 ); |
|
700 if ( iItems->Count() ) |
|
701 { |
|
702 lastItemIndex = iItems->Count() - 1; |
|
703 TBool lastItemFound( EFalse ); |
|
704 while ( lastItemIndex > -1 && !lastItemFound ) |
|
705 { |
|
706 TInt topY( ( *iItems )[ lastItemIndex ].Rect().iTl.iY - Offset() ); |
|
707 if ( topY > iViewRect.iBr.iY ) |
|
708 { |
|
709 lastItemIndex--; |
|
710 } |
|
711 else |
|
712 { |
|
713 lastItemFound = ETrue; |
|
714 break; |
|
715 } |
|
716 } |
|
717 } |
|
718 return lastItemIndex; |
|
719 } |
|
720 |
|
721 |
|
722 // --------------------------------------------------------------------------- |
|
723 // UpdateScrollIndex |
|
724 // --------------------------------------------------------------------------- |
|
725 // |
|
726 void CAknTreeListPhysicsHandler::UpdateScrollIndex( const TBool& aScrollTop ) |
|
727 { |
|
728 // Do nothing if handler itself is updating the view |
|
729 if ( iFlags.IsSet( EFlagUpdatingView ) ) |
|
730 { |
|
731 return; |
|
732 } |
|
733 |
|
734 TInt first( 0 ); |
|
735 TInt scrollOffset( 0 ); |
|
736 TInt previousScrollIndex( iScrollIndex ); |
|
737 |
|
738 // Check that scroll index is within worldSizeLimit |
|
739 TInt worldSizeLimit( WorldHeight() - iViewRect.Height() ); |
|
740 if ( worldSizeLimit < iScrollIndex && worldSizeLimit > 0 ) |
|
741 { |
|
742 iScrollIndex = worldSizeLimit; |
|
743 } |
|
744 |
|
745 // Adjusting scroll index according to first visible item |
|
746 if ( aScrollTop ) |
|
747 { |
|
748 first = FirstVisibleItemIndex(); |
|
749 } |
|
750 |
|
751 // Adjusting scroll index according to last visible item |
|
752 else |
|
753 { |
|
754 scrollOffset = iViewRect.Height(); |
|
755 first = iItems->Count() - 1; |
|
756 while ( scrollOffset > iItemHeight && first >= 0 ) |
|
757 { |
|
758 scrollOffset -= iItemHeight; |
|
759 first--; |
|
760 } |
|
761 } |
|
762 |
|
763 if ( first >= 0 && first < iItems->Count() ) |
|
764 { |
|
765 // First visible item index of the whole item list |
|
766 TInt topIndex( iTree->VisibleItemIndex( (*iItems)[ first ].Item() ) ); |
|
767 TInt currentIndex( iScrollIndex / iItemHeight ); |
|
768 |
|
769 // Scrollindex needs updating |
|
770 if ( topIndex != currentIndex || scrollOffset != 0 ) |
|
771 { |
|
772 iScrollIndex = topIndex * iItemHeight + scrollOffset; |
|
773 |
|
774 // Check that scroll index is within boundaries. |
|
775 if ( iScrollIndex < 0 ) |
|
776 { |
|
777 iScrollIndex = 0; |
|
778 } |
|
779 else if ( iScrollIndex > worldSizeLimit ) |
|
780 { |
|
781 if ( worldSizeLimit < 0 ) |
|
782 { |
|
783 // if worldSizeLimit<0, means the world height is less than view rect, no scroll needed, |
|
784 // it is safe to set iScrollIndex to 0 |
|
785 iScrollIndex = 0; |
|
786 } |
|
787 else |
|
788 { |
|
789 iScrollIndex = worldSizeLimit; |
|
790 } |
|
791 } |
|
792 |
|
793 // Update view if needed |
|
794 if ( previousScrollIndex != iScrollIndex ) |
|
795 { |
|
796 ScrollView( EFalse ); |
|
797 } |
|
798 } |
|
799 } |
|
800 } |
|
801 |
|
802 |
|
803 // --------------------------------------------------------------------------- |
|
804 // ViewPositionChanged |
|
805 // --------------------------------------------------------------------------- |
|
806 // |
|
807 void CAknTreeListPhysicsHandler::ViewPositionChanged( |
|
808 const TPoint& aNewPosition, |
|
809 TBool aDrawNow, |
|
810 TUint /*aFlags*/ ) |
|
811 { |
|
812 iScrollIndex = aNewPosition.iY - iViewRect.Height() / 2; |
|
813 TTouchFeedbackType feedbackType = ETouchFeedbackVibra; |
|
814 if ( iPhysics->OngoingPhysicsAction() |
|
815 == CAknPhysics::EAknPhysicsActionDragging ) |
|
816 { |
|
817 feedbackType = static_cast<TTouchFeedbackType>(ETouchFeedbackAudio | ETouchFeedbackVibra); |
|
818 } |
|
819 if ( iPhysics->OngoingPhysicsAction() |
|
820 == CAknPhysics::EAknPhysicsActionBouncing ) |
|
821 { |
|
822 iEventsBlocked = ETrue; |
|
823 iEnableEvents = EFalse; |
|
824 } |
|
825 else |
|
826 { |
|
827 ResetEventBlockingStatus(); |
|
828 } |
|
829 |
|
830 TInt viewBottom = aNewPosition.iY + iViewRect.Height() - iViewRect.Height() / 2; |
|
831 if ( iPenDown ) |
|
832 { |
|
833 iPenDown = EFalse; |
|
834 if ( iScrollIndex <= iListTopOffset - iItemHeight ) |
|
835 { |
|
836 iOldTopItem = -1; |
|
837 } |
|
838 else |
|
839 { |
|
840 iOldTopItem = ( iScrollIndex - iListTopOffset ) / iItemHeight; |
|
841 if ( iOldTopItem >= iTree->VisibleItemCount() ) |
|
842 { |
|
843 iOldTopItem = iTree->VisibleItemCount(); |
|
844 } |
|
845 } |
|
846 |
|
847 if ( viewBottom < iListTopOffset ) |
|
848 { |
|
849 iOldBottomItem = -1; |
|
850 } |
|
851 else |
|
852 { |
|
853 iOldBottomItem = ( viewBottom - iListTopOffset ) / iItemHeight; |
|
854 if ( iOldBottomItem >= iTree->VisibleItemCount() ) |
|
855 { |
|
856 iOldBottomItem = iTree->VisibleItemCount(); |
|
857 } |
|
858 } |
|
859 } |
|
860 else |
|
861 { |
|
862 TInt bottomItem, upperItem; |
|
863 if ( iScrollIndex <= iListTopOffset - iItemHeight ) |
|
864 { |
|
865 upperItem = -1; |
|
866 } |
|
867 else |
|
868 { |
|
869 upperItem = ( iScrollIndex - iListTopOffset ) / iItemHeight; |
|
870 if ( upperItem >= iTree->VisibleItemCount() ) |
|
871 { |
|
872 upperItem = iTree->VisibleItemCount(); |
|
873 } |
|
874 } |
|
875 if ( viewBottom < iListTopOffset ) |
|
876 { |
|
877 bottomItem = -1; |
|
878 } |
|
879 else |
|
880 { |
|
881 bottomItem = ( viewBottom - iListTopOffset ) / iItemHeight; |
|
882 if ( bottomItem >= iTree->VisibleItemCount() ) |
|
883 { |
|
884 bottomItem = iTree->VisibleItemCount(); |
|
885 } |
|
886 } |
|
887 if ( upperItem == -1 ) |
|
888 { |
|
889 if ( bottomItem != iOldBottomItem ) |
|
890 { |
|
891 if ( bottomItem != iTree->VisibleItemCount() - 1 ) |
|
892 iFeedback->InstantFeedback( iTreeListView, |
|
893 ETouchFeedbackSensitiveList, |
|
894 feedbackType, |
|
895 TPointerEvent() ); |
|
896 } |
|
897 } |
|
898 else if ( bottomItem == iTree->VisibleItemCount() ) |
|
899 { |
|
900 if ( upperItem != iOldTopItem ) |
|
901 { |
|
902 iFeedback->InstantFeedback( iTreeListView, |
|
903 ETouchFeedbackSensitiveList, |
|
904 feedbackType, |
|
905 TPointerEvent() ); |
|
906 } |
|
907 } |
|
908 else if ( upperItem >= 0 || bottomItem < iTree->VisibleItemCount() ) |
|
909 { |
|
910 if ( upperItem < iOldTopItem || bottomItem > iOldBottomItem ) |
|
911 { |
|
912 iFeedback->InstantFeedback( iTreeListView, |
|
913 ETouchFeedbackSensitiveList, |
|
914 feedbackType, |
|
915 TPointerEvent() ); |
|
916 } |
|
917 } |
|
918 iOldTopItem = upperItem; |
|
919 iOldBottomItem = bottomItem; |
|
920 } |
|
921 ScrollView( aDrawNow ); |
|
922 } |
|
923 |
|
924 |
|
925 // --------------------------------------------------------------------------- |
|
926 // PhysicEmulationEnded |
|
927 // --------------------------------------------------------------------------- |
|
928 // |
|
929 void CAknTreeListPhysicsHandler::PhysicEmulationEnded() |
|
930 { |
|
931 iEnableEvents = ETrue; |
|
932 _AKNTRACE("CAknTreeListPhysicsHandler::%s Report EEventFlickStopped", |
|
933 __FUNCTION__); |
|
934 iTreeListView->ReportTreeListEvent( |
|
935 MAknTreeListObserver::EEventFlickStopped, |
|
936 KAknTreeIIDNone ); |
|
937 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
938 MAknListBoxTfx* tfxApi = CAknListLoader::TfxApi( iTfxGc ); |
|
939 |
|
940 if ( tfxApi ) |
|
941 { |
|
942 tfxApi->EnableEffects( ETrue ); |
|
943 } |
|
944 #endif // RD_UI_TRANSITION_EFFECTS_LIST |
|
945 } |
|
946 |
|
947 |
|
948 |
|
949 // --------------------------------------------------------------------------- |
|
950 // CAknTreeListPhysicsHandler::ViewPosition |
|
951 // --------------------------------------------------------------------------- |
|
952 // |
|
953 TPoint CAknTreeListPhysicsHandler::ViewPosition() const |
|
954 { |
|
955 TPoint viewPosition( iViewRect.Width() / 2, |
|
956 iScrollIndex + iViewRect.Height() / 2 ); |
|
957 return viewPosition; |
|
958 } |
|
959 |
|
960 |
|
961 // --------------------------------------------------------------------------- |
|
962 // CAknTreeListPhysicsHandler::SetGc |
|
963 // --------------------------------------------------------------------------- |
|
964 // |
|
965 void CAknTreeListPhysicsHandler::SetGc( CWindowGc* aGc ) |
|
966 { |
|
967 iTfxGc = aGc; |
|
968 } |
|
969 |
|
970 |
|
971 // --------------------------------------------------------------------------- |
|
972 // CAknTreeListPhysicsHandler::CAknTreeListPhysicsHandler |
|
973 // --------------------------------------------------------------------------- |
|
974 // |
|
975 CAknTreeListPhysicsHandler::CAknTreeListPhysicsHandler( |
|
976 CAknTreeListView* aTreeListView, |
|
977 CAknTree* aTree, |
|
978 RArray<TAknTreeListViewItem>* aItems ) |
|
979 : |
|
980 iPhysics( NULL ), |
|
981 iHighlightTimer( NULL ), |
|
982 iTree( aTree ), |
|
983 iTreeListView( aTreeListView ), |
|
984 iItems( aItems ), |
|
985 iPlayFeedbackOnUp( EFalse ) |
|
986 { |
|
987 } |
|
988 |
|
989 |
|
990 // --------------------------------------------------------------------------- |
|
991 // CAknTreeListPhysicsHandler::ConstructL |
|
992 // --------------------------------------------------------------------------- |
|
993 // |
|
994 void CAknTreeListPhysicsHandler::ConstructL() |
|
995 { |
|
996 iPhysics = CAknPhysics::NewL( *this, iTreeListView ); |
|
997 iHighlightTimer = CPeriodic::NewL( CActive::EPriorityStandard ); |
|
998 iFeedback = MTouchFeedback::Instance(); |
|
999 } |
|
1000 |
|
1001 |
|
1002 // --------------------------------------------------------------------------- |
|
1003 // DragThreshold |
|
1004 // --------------------------------------------------------------------------- |
|
1005 // |
|
1006 TInt CAknTreeListPhysicsHandler::DragThreshold() |
|
1007 { |
|
1008 return iPhysics->DragThreshold(); |
|
1009 } |
|
1010 |
|
1011 |
|
1012 // --------------------------------------------------------------------------- |
|
1013 // LaunchHighlightTimer |
|
1014 // --------------------------------------------------------------------------- |
|
1015 // |
|
1016 void CAknTreeListPhysicsHandler::LaunchHighlightTimer( TBool aWasScrolling ) |
|
1017 { |
|
1018 if ( !aWasScrolling ) |
|
1019 { |
|
1020 HighlightTimerCallback( this ); |
|
1021 CCoeEnv::Static()->WsSession().Finish(); |
|
1022 } |
|
1023 else |
|
1024 { |
|
1025 TInt highlightTimeout = iPhysics->HighlightTimeout() * 1000; |
|
1026 |
|
1027 iHighlightTimer->Start( |
|
1028 TTimeIntervalMicroSeconds32( highlightTimeout ), |
|
1029 TTimeIntervalMicroSeconds32( highlightTimeout ), |
|
1030 TCallBack( HighlightTimerCallback, this ) ); |
|
1031 } |
|
1032 } |
|
1033 |
|
1034 |
|
1035 // --------------------------------------------------------------------------- |
|
1036 // HighlightTimerCallback |
|
1037 // --------------------------------------------------------------------------- |
|
1038 // |
|
1039 TInt CAknTreeListPhysicsHandler::HighlightTimerCallback( TAny* aPtr ) |
|
1040 { |
|
1041 CAknTreeListPhysicsHandler* handler = |
|
1042 static_cast<CAknTreeListPhysicsHandler*>( aPtr ); |
|
1043 if ( handler && handler->iTreeListView ) |
|
1044 { |
|
1045 if ( handler->iTreeListView->SingleClickEnabled() |
|
1046 && !handler->iEnableEvents ) |
|
1047 { |
|
1048 handler->iTreeListView->EnableHighlight(ETrue); |
|
1049 } |
|
1050 // Pressed down highlight if item still pressed down |
|
1051 if ( !handler->iFlags.IsSet( EFlagButtonUpReceived ) |
|
1052 && handler->iFlags.IsSet( EFlagPDHighlightToFocusedItem ) ) |
|
1053 { |
|
1054 handler->iTreeListView->SetPressedDownState( ETrue ); |
|
1055 handler->iTreeListView->DrawNow(); |
|
1056 } |
|
1057 else |
|
1058 { |
|
1059 // Pressed down highlight if item still pressed down |
|
1060 if ( !handler->iFlags.IsSet( EFlagButtonUpReceived ) |
|
1061 && handler->iFlags.IsSet( EFlagPDHighlightToNonFocusedItem ) ) |
|
1062 { |
|
1063 handler->iTreeListView->SetPressedDownState( ETrue ); |
|
1064 } |
|
1065 handler->SetHighlight(); |
|
1066 } |
|
1067 handler->iFlags.Clear( EFlagPDHighlightToFocusedItem ); |
|
1068 handler->iFlags.Clear( EFlagPDHighlightToNonFocusedItem ); |
|
1069 } |
|
1070 return NULL; |
|
1071 } |
|
1072 |
|
1073 |
|
1074 // --------------------------------------------------------------------------- |
|
1075 // SetHighlight |
|
1076 // --------------------------------------------------------------------------- |
|
1077 // |
|
1078 void CAknTreeListPhysicsHandler::SetHighlight() |
|
1079 { |
|
1080 iHighlightTimer->Cancel(); |
|
1081 if ( iItemToBeFocused ) |
|
1082 { |
|
1083 iTreeListView->SetHighlight( iItemToBeFocused, iIndexToBeFocused ); |
|
1084 iItemToBeFocused = NULL; |
|
1085 } |
|
1086 } |
|
1087 |
|
1088 |
|
1089 // --------------------------------------------------------------------------- |
|
1090 // ScrollView |
|
1091 // --------------------------------------------------------------------------- |
|
1092 // |
|
1093 void CAknTreeListPhysicsHandler::ScrollView( TBool aDrawNow ) |
|
1094 { |
|
1095 iFlags.Set( EFlagUpdatingView ); |
|
1096 if ( iPreviousIndex != iScrollIndex ) |
|
1097 { |
|
1098 iPreviousIndex = iScrollIndex; |
|
1099 TInt currentLine = iScrollIndex / iItemHeight; |
|
1100 |
|
1101 TInt line = currentLine; |
|
1102 if ( currentLine < 0 ) |
|
1103 { |
|
1104 line = 0; |
|
1105 } |
|
1106 else if ( currentLine >= iTree->VisibleItemCount() ) |
|
1107 { |
|
1108 line = iTree->VisibleItemCount() - 1; |
|
1109 } |
|
1110 |
|
1111 iTreeListView->UpdateTreeListView( line, aDrawNow ); |
|
1112 } |
|
1113 iFlags.Clear( EFlagUpdatingView ); |
|
1114 } |
|
1115 |
|
1116 |
|
1117 // --------------------------------------------------------------------------- |
|
1118 // CAknTreeListPhysicsHandler::StopPhysics |
|
1119 // --------------------------------------------------------------------------- |
|
1120 // |
|
1121 void CAknTreeListPhysicsHandler::StopPhysics() |
|
1122 { |
|
1123 iPhysics->StopPhysics(); |
|
1124 iPhysics->ResetFriction(); |
|
1125 } |
|
1126 |
|
1127 |
|
1128 // --------------------------------------------------------------------------- |
|
1129 // CAknTreeListPhysicsHandler::WorldHeight |
|
1130 // --------------------------------------------------------------------------- |
|
1131 // |
|
1132 TInt CAknTreeListPhysicsHandler::WorldHeight() |
|
1133 { |
|
1134 return iTree->VisibleItemCount() * iItemHeight + iListTopOffset; |
|
1135 } |
|
1136 |
|
1137 |
|
1138 // --------------------------------------------------------------------------- |
|
1139 // CAknTreeListPhysicsHandler::EmptyAreaClicked |
|
1140 // --------------------------------------------------------------------------- |
|
1141 // |
|
1142 TBool CAknTreeListPhysicsHandler::EmptyAreaClicked( TPoint aPosition ) |
|
1143 { |
|
1144 if ( aPosition.iY <= WorldHeight() ) |
|
1145 { |
|
1146 return EFalse; |
|
1147 } |
|
1148 return ETrue; |
|
1149 } |
|
1150 |
|
1151 |