1 /* |
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2 * Copyright (c) 2002-2004 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: Implementation for wrapper for a box |
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15 * |
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16 */ |
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17 |
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18 // System includes |
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19 #include <akntouchgesturefwevents.h> |
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20 #include <centralrepository.h> |
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21 |
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22 #include <activeidle2domaincrkeys.h> |
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23 #include <gfxtranseffect/gfxtranseffect.h> |
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24 |
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25 #ifdef RD_TACTILE_FEEDBACK |
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26 #include <touchfeedback.h> |
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27 #endif // RD_TACTILE_FEEDBACK |
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28 |
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29 // User includes |
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30 #include "xnappuiadapter.h" |
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31 #include "xnuiengine.h" |
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32 #include "xnproperty.h" |
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33 #include "xnviewmanager.h" |
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34 #include "xnviewdata.h" |
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35 #include "xndomnode.h" |
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36 #include "xnnode.h" |
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37 #include "xnviewcontroladapter.h" |
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38 #include "xneffectmanager.h" |
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39 #include "xnrootdata.h" |
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40 #include "xnviewadapter.h" |
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41 #include "xnbackgroundmanager.h" |
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42 |
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43 #include "xnviewswitcher.h" |
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44 |
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45 // Constants |
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46 const TInt KDrawDelay( 25000 ); // 16100 = 62 fps |
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47 const TInt KDragTreshold( 30 ); |
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48 const TInt KMaxScrollSpeed( 150 ); |
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49 const TInt KMinScrollSpeed( 20 ); |
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50 const TInt KAnimationDuration( 500000 ); |
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51 const TInt KDragOffsetForBackground( 100 ); |
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52 const TInt KDragOffsetForPageSwitch( 50 ); |
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53 |
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54 enum TViewPosition |
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55 { |
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56 KCurrentView, KNextView, KPreviousView |
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57 }; |
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58 |
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59 // ============================= LOCAL FUNCTIONS =============================== |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // ----------------------------------------------------------------------------- |
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63 // |
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64 void HideAdapter( CXnControlAdapter* aAdapter ) |
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65 { |
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66 if( aAdapter ) |
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67 { |
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68 aAdapter->Window().SetOrdinalPosition( -1 ); |
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69 } |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // ----------------------------------------------------------------------------- |
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74 // |
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75 void ShowAdapter( CXnControlAdapter* aAdapter ) |
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76 { |
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77 if( aAdapter ) |
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78 { |
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79 aAdapter->Window().SetOrdinalPosition( 1 ); |
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80 } |
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81 } |
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82 |
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83 // ----------------------------------------------------------------------------- |
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84 // Changes window position |
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85 // ----------------------------------------------------------------------------- |
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86 // |
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87 void SetWindowPosition( CXnControlAdapter* aAdapter, const TPoint& aPos ) |
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88 { |
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89 if( aAdapter ) |
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90 { |
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91 aAdapter->Window().SetPosition( aPos ); |
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92 } |
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93 } |
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94 |
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95 // ----------------------------------------------------------------------------- |
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96 // Hide/Show control |
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97 // ----------------------------------------------------------------------------- |
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98 // |
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99 void SetVisible( CCoeControl* aControl, TBool aVisible ) |
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100 { |
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101 if( aControl ) |
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102 { |
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103 aControl->MakeVisible( aVisible ); |
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104 } |
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105 } |
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106 |
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107 // ----------------------------------------------------------------------------- |
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108 // ShowNodes |
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109 // ----------------------------------------------------------------------------- |
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110 // |
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111 void ShowNodesL( CXnNode& aNode, TBool aShow ) |
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112 { |
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113 CXnDomStringPool* sp( aNode.DomNode()->StringPool() ); |
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114 |
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115 CXnProperty* prop( NULL ); |
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116 if( aShow ) |
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117 { |
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118 prop = CXnProperty::NewL( |
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119 XnPropertyNames::style::common::KDisplay, |
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120 XnPropertyNames::style::common::display::KBlock, |
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121 CXnDomPropertyValue::EString, *sp ); |
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122 } |
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123 else |
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124 { |
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125 prop = CXnProperty::NewL( |
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126 XnPropertyNames::style::common::KDisplay, |
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127 XnPropertyNames::style::common::display::KNone, |
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128 CXnDomPropertyValue::EString, *sp ); |
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129 } |
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130 CleanupStack::PushL( prop ); |
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131 |
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132 aNode.SetPropertyWithoutNotificationL( prop ); |
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133 CleanupStack::Pop( prop ); |
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134 } |
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135 |
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136 // ----------------------------------------------------------------------------- |
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137 // IsNodeVisible |
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138 // ----------------------------------------------------------------------------- |
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139 // |
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140 TBool IsNodeVisibleL( CXnNode& aNode ) |
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141 { |
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142 CXnProperty* displayProp( aNode.DisplayL() ); |
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143 |
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144 if ( displayProp ) |
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145 { |
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146 const TDesC8& display( displayProp->StringValue() ); |
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147 |
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148 if ( display == XnPropertyNames::style::common::display::KBlock ) |
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149 { |
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150 return ETrue; |
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151 } |
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152 } |
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153 return EFalse; |
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154 } |
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155 |
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156 // ============================ MEMBER FUNCTIONS =============================== |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // CXnViewSwitcher::NewL |
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160 // Symbian static 1st phase constructor |
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161 // ----------------------------------------------------------------------------- |
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162 // |
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163 CXnViewSwitcher* CXnViewSwitcher::NewL() |
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164 { |
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165 CXnViewSwitcher* self = new (ELeave) CXnViewSwitcher(); |
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166 |
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167 CleanupStack::PushL(self); |
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168 self->ConstructL(); |
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169 CleanupStack::Pop(self); |
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170 |
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171 return self; |
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172 } |
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173 |
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174 // ----------------------------------------------------------------------------- |
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175 // CXnViewSwitcher::ConstructL |
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176 // Symbian 2nd phase constructor can leave. |
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177 // ----------------------------------------------------------------------------- |
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178 // |
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179 void CXnViewSwitcher::ConstructL() |
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180 { |
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181 iFingerFollowSupported = IsFingerFollowSupportedL(); |
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182 iTimer = CPeriodic::NewL( CActive::EPriorityUserInput ); |
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183 iViewSwitchState = KViewSwitchIdle; |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CXnViewSwitcher::CXnViewSwitcher |
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188 // C++ default constructor |
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189 // ----------------------------------------------------------------------------- |
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190 // |
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191 CXnViewSwitcher::CXnViewSwitcher() : |
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192 iAppUi(static_cast<CXnAppUiAdapter&> (*iAvkonAppUi)) |
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193 { |
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194 } |
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195 |
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196 // ----------------------------------------------------------------------------- |
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197 // CXnViewSwitcher::~CXnViewSwitcher |
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198 // C++ destructor |
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199 // ----------------------------------------------------------------------------- |
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200 // |
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201 CXnViewSwitcher::~CXnViewSwitcher() |
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202 { |
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203 if (iTimer->IsActive()) |
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204 { |
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205 iTimer->Cancel(); |
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206 } |
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207 delete iTimer; |
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208 } |
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209 |
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210 // ----------------------------------------------------------------------------- |
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211 // ----------------------------------------------------------------------------- |
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212 // |
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213 TBool CXnViewSwitcher::FingerFollowSupported() const |
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214 { |
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215 return iFingerFollowSupported; |
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216 } |
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217 |
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218 // ----------------------------------------------------------------------------- |
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219 // ----------------------------------------------------------------------------- |
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220 // |
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221 TBool CXnViewSwitcher::ProcessPointerEventL(const TPointerEvent& aPointerEvent ) |
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222 { |
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223 TBool consumed(EFalse); |
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224 |
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225 if ( FingerFollowSupported() ) |
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226 { |
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227 TPoint parentPos = aPointerEvent.iParentPosition; |
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228 |
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229 switch (aPointerEvent.iType) |
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230 { |
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231 case TPointerEvent::EButton1Down: |
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232 { |
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233 if ( iViewSwitchState == KViewSwitchBegin || iViewSwitchState |
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234 == KViewSwitchIdle ) |
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235 { |
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236 if (iTimer->IsActive()) |
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237 { |
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238 iTimer->Cancel(); |
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239 } |
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240 if( SetupViewsL() ) |
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241 { |
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242 iViewSwitchState = KViewSwitchBegin; |
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243 iStartPosition = parentPos; |
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244 iScrollSpeed = KMaxScrollSpeed; |
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245 iTickAmount = 0; |
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246 iDirection = KCurrentView; |
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247 iScrollDistance = 0; |
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248 iScrollDirectionDistance = 0; |
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249 } |
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250 } |
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251 else if( iViewSwitchState == KViewSwitchDragOngoing ) |
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252 { |
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253 consumed = ETrue; |
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254 } |
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255 else if( iViewSwitchState == KViewSwitchScroll ) |
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256 { |
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257 consumed = ETrue; |
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258 |
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259 if( iActivateView == KCurrentView ) |
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260 { |
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261 if (iTimer->IsActive()) |
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262 { |
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263 iTimer->Cancel(); |
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264 } |
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265 |
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266 iViewSwitchState = KViewSwitchDragOngoing; |
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267 consumed = ETrue; |
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268 iViewStartPosition = iViewPosition; |
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269 iScrollDistance = 0; |
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270 iScrollDirectionDistance = 0; |
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271 iStartPosition = parentPos; |
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272 |
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273 iTimer->Start( 0, KDrawDelay, TCallBack( |
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274 TimerCallback, this ) ); |
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275 } |
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276 else if( iActivateView == KNextView ) |
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277 { |
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278 if( iCurrentView.iAdapter && iNextView.iAdapter && |
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279 iPreviousView.iAdapter ) |
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280 { |
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281 if (iTimer->IsActive()) |
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282 { |
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283 iTimer->Cancel(); |
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284 } |
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285 |
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286 iViewSwitchState = KViewSwitchDragOngoing; |
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287 iActivateView = KCurrentView; |
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288 |
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289 if( iPreviousView.iAdapter == iNextView.iAdapter ) |
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290 { |
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291 iPreviousView = iCurrentView; |
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292 iCurrentView = iNextView; |
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293 iNextView = iPreviousView; |
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294 } |
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295 else |
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296 { |
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297 iPreviousView = iCurrentView; |
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298 |
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299 iCurrentView = iNextView; |
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300 |
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301 iNextView.iReadyToDraw = EFalse; |
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302 CXnViewData* nextViewData( |
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303 ViewData( *iCurrentView.iViewData, KNextView ) ); |
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304 CXnNode* nextViewNode( nextViewData->ViewNode() ); |
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305 if( nextViewNode ) |
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306 { |
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307 iNextView.iAdapter = nextViewNode->Control(); |
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308 iNextView.iViewData = nextViewData; |
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309 iNextView.iBgDrawn = EFalse; |
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310 } |
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311 } |
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312 |
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313 iViewStartPosition = iCurrentView.iAdapter->Window().Position(); |
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314 iScrollDistance = 0; |
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315 iScrollDirectionDistance = 0; |
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316 iStartPosition = parentPos; |
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317 |
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318 iScrollSpeed = KMaxScrollSpeed; |
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319 iTickAmount = 0; |
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320 iTimer->Start( 0, KDrawDelay, TCallBack( |
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321 TimerCallback, this ) ); |
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322 } |
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323 consumed = ETrue; |
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324 } |
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325 else if( iActivateView == KPreviousView ) |
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326 { |
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327 if( iCurrentView.iAdapter && iNextView.iAdapter && |
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328 iPreviousView.iAdapter ) |
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329 { |
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330 if (iTimer->IsActive()) |
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331 { |
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332 iTimer->Cancel(); |
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333 } |
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334 |
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335 iViewSwitchState = KViewSwitchDragOngoing; |
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336 iActivateView = KCurrentView; |
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337 |
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338 if( iPreviousView.iAdapter == iNextView.iAdapter ) |
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339 { |
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340 iNextView = iCurrentView; |
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341 iCurrentView = iPreviousView; |
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342 iPreviousView = iNextView; |
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343 } |
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344 else |
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345 { |
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346 iNextView = iCurrentView; |
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347 |
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348 iCurrentView = iPreviousView; |
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349 |
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350 iPreviousView.iReadyToDraw = EFalse; |
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351 CXnViewData* prevViewData( |
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352 ViewData( *iCurrentView.iViewData, KPreviousView ) ); |
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353 CXnNode* prevViewNode( prevViewData->ViewNode() ); |
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354 if( prevViewNode ) |
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355 { |
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356 iPreviousView.iAdapter = prevViewNode->Control(); |
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357 iPreviousView.iViewData = prevViewData; |
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358 iPreviousView.iBgDrawn = EFalse; |
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359 } |
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360 } |
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361 |
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362 iViewStartPosition = iCurrentView.iAdapter->Window().Position(); |
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363 iScrollDistance = 0; |
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364 iScrollDirectionDistance = 0; |
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365 iStartPosition = parentPos; |
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366 |
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367 iScrollSpeed = KMaxScrollSpeed; |
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368 iTickAmount = 0; |
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369 iTimer->Start( 0, KDrawDelay, TCallBack( |
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370 TimerCallback, this ) ); |
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371 } |
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372 consumed = ETrue; |
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373 } |
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374 } |
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375 } |
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376 break; |
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377 case TPointerEvent::EDrag: |
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378 { |
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379 if( iViewSwitchState == KViewSwitchIdle ) |
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380 { |
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381 consumed = EFalse; |
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382 } |
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383 else if( iViewSwitchState == KViewSwitchBegin ) |
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384 { |
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385 TPoint delta = parentPos - iStartPosition; |
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386 |
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387 if( Abs(delta.iX) > KDragTreshold || Abs(delta.iY) > KDragTreshold ) |
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388 { |
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389 #ifdef RD_TACTILE_FEEDBACK |
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390 MTouchFeedback* feedback( MTouchFeedback::Instance() ); |
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391 |
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392 if ( feedback ) |
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393 { |
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394 feedback->InstantFeedback( ETouchFeedbackBasic ); |
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395 } |
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396 #endif |
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397 |
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398 iViewSwitchState = KViewSwitchDragOngoing; |
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399 iActivateView = KCurrentView; |
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400 iViewPosition.iY = iCurrentView.iAdapter->Position().iY; |
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401 iViewPosition.iX = 0; |
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402 iStartPosition = parentPos; |
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403 |
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404 StartViewDraggingL(); |
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405 |
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406 iTimer->Start( 0, KDrawDelay, TCallBack( |
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407 TimerCallback, this ) ); |
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408 } |
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409 consumed = ETrue; |
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410 } |
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411 else if( iViewSwitchState == KViewSwitchDragOngoing ) |
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412 { |
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413 iScrollDistance = parentPos.iX - iStartPosition.iX; |
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414 consumed = ETrue; |
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415 } |
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416 else |
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417 { |
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418 consumed = EFalse; |
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419 } |
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420 } |
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421 break; |
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422 case TPointerEvent::EButton1Up: |
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423 { |
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424 if( iViewSwitchState == KViewSwitchBegin ) |
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425 { |
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426 iViewSwitchState = KViewSwitchIdle; |
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427 } |
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428 else if( iViewSwitchState == KViewSwitchDragOngoing ) |
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429 { |
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430 if (iTimer->IsActive()) |
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431 { |
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432 iTimer->Cancel(); |
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433 } |
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434 |
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435 #ifdef RD_TACTILE_FEEDBACK |
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436 /* |
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437 MTouchFeedback* feedback( MTouchFeedback::Instance() ); |
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438 |
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439 if ( feedback ) |
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440 { |
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441 feedback->InstantFeedback( ETouchFeedbackBasic ); |
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442 } |
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443 */ |
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444 #endif |
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445 |
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446 consumed = ETrue; |
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447 |
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448 StartViewScrolling(); |
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449 iViewSwitchState = KViewSwitchScroll; |
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450 } |
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451 else if( iViewSwitchState == KViewSwitchScroll ) |
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452 { |
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453 consumed = ETrue; |
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454 } |
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455 } |
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456 break; |
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457 default: |
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458 break; |
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459 } |
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460 } |
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461 |
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462 return consumed; |
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463 } |
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464 |
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465 // ----------------------------------------------------------------------------- |
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466 // ----------------------------------------------------------------------------- |
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467 // |
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468 void CXnViewSwitcher::TouchGesture( TAknTouchGestureFwType& /*aTouchGesture*/ ) |
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469 { |
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470 } |
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471 |
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472 // ----------------------------------------------------------------------------- |
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473 // CXnViewSwitcher::SizeChanged |
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474 // ----------------------------------------------------------------------------- |
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475 // |
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476 void CXnViewSwitcher::SizeChanged( TRect aRect ) |
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477 { |
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478 iRect = aRect; |
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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 // |
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484 TBool CXnViewSwitcher::SetupViewsL() |
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485 { |
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486 TBool ret = EFalse; |
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487 |
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488 CXnViewManager& wManager = iAppUi.ViewManager(); |
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489 iCurrentView.iViewData = &wManager.ActiveViewData(); |
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490 iCurrentView.iAdapter = iCurrentView.iViewData->ViewNode()->Control(); |
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491 iCurrentView.iReadyToDraw = ETrue; |
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492 iCurrentView.iBgDrawn = ETrue; |
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493 |
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494 iViewStartPosition = TPoint( 0, iCurrentView.iAdapter->Window().Position().iY ); |
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495 |
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496 if ( wManager.ViewAmount() > 1 ) |
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497 { |
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498 ret = ETrue; |
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499 |
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500 CXnNode* nextViewNode( wManager.NextViewData().ViewNode() ); |
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501 if( nextViewNode ) |
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502 { |
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503 iNextView.iAdapter = nextViewNode->Control(); |
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504 iNextView.iViewData = &wManager.NextViewData(); |
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505 } |
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506 |
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507 CXnNode* prevViewNode( wManager.PreviousViewData().ViewNode() ); |
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508 if( prevViewNode && prevViewNode == nextViewNode ) |
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509 { |
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510 // Only 2 views in Homesceern -> previous = next |
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511 iPreviousView = iNextView; |
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512 } |
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513 else if( prevViewNode ) |
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514 { |
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515 iPreviousView.iAdapter = prevViewNode->Control(); |
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516 iPreviousView.iViewData = &wManager.PreviousViewData(); |
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517 } |
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518 } |
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519 return ret; |
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520 } |
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521 |
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522 // ----------------------------------------------------------------------------- |
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523 // ----------------------------------------------------------------------------- |
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524 // |
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525 void CXnViewSwitcher::PrepareViewL( CXnViewSwitcher::TViewInformation& aView ) |
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526 { |
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527 if( !aView.iAdapter || !aView.iViewData ) |
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528 { |
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529 return; |
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530 } |
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531 |
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532 CXnControlAdapter& adapter = *aView.iAdapter; |
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533 RWindow& win( adapter.Window() ); |
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534 win.SetOrdinalPosition( -1 ); |
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535 adapter.MakeVisible( ETrue ); |
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536 |
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537 CXnNode* viewNode( aView.iViewData->ViewNode() ); |
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538 TBool nodesVisible( IsNodeVisibleL( *viewNode ) ); |
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539 if( !nodesVisible ) |
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540 { |
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541 // Set visible temporarily |
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542 ShowNodesL( *viewNode, ETrue ); |
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543 } |
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544 |
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545 iAppUi.ViewAdapter().EnterEditStateL( *aView.iViewData, EFalse ); |
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546 |
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547 viewNode->UiEngine()->RenderUIL( viewNode ); |
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548 aView.iReadyToDraw = ETrue; |
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549 } |
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550 |
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551 // ----------------------------------------------------------------------------- |
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552 // ----------------------------------------------------------------------------- |
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553 // |
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554 void CXnViewSwitcher::StartViewDraggingL() |
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555 { |
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556 // Remove focused node, in order to prevent activate triggers |
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557 CXnNode* currentViewNode = |
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558 iAppUi.ViewManager().ActiveViewData(). Node()->LayoutNode(); |
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559 CXnUiEngine* engine(currentViewNode->UiEngine()); |
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560 |
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561 CXnNode* focusedNode = engine->FocusedNode(); |
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562 if (focusedNode) |
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563 { |
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564 focusedNode->UnsetStateL(XnPropertyNames::style::common::KPressedDown); |
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565 focusedNode->UnsetStateL(XnPropertyNames::style::common::KFocus); |
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566 } |
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567 |
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568 // Send button up to prevent long tapping |
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569 TPointerEvent pointerEvent; |
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570 pointerEvent.iType = TPointerEvent::EButton1Up; |
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571 if ( iCurrentView.iAdapter ) |
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572 { |
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573 iCurrentView.iAdapter->CXnControlAdapter::HandlePointerEventL( |
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574 pointerEvent); |
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575 } |
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576 } |
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577 |
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578 // ----------------------------------------------------------------------------- |
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579 // ----------------------------------------------------------------------------- |
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580 // |
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581 void CXnViewSwitcher::StartViewScrolling() |
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582 { |
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583 TInt screenWidth = iCurrentView.iAdapter->Window().Size().iWidth; |
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584 |
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585 UpdateViewToBeActivated( KDragOffsetForPageSwitch ); |
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586 |
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587 switch (iActivateView) |
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588 { |
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589 case KPreviousView: |
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590 { |
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591 iScrollDistance = screenWidth - iViewPosition.iX; |
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592 } |
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593 break; |
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594 case KNextView: |
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595 { |
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596 iScrollDistance = -screenWidth - iViewPosition.iX; |
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597 } |
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598 break; |
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599 default: // KCurrentView |
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600 { |
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601 iScrollDistance = -iViewPosition.iX; |
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602 } |
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603 break; |
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604 } |
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605 |
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606 TInt minSpeed = Abs( iScrollDistance / ( KAnimationDuration / KDrawDelay ) ); |
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607 iScrollSpeed = Abs( iScrollSpeed ); |
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608 if( iScrollSpeed < minSpeed ) |
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609 { |
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610 iScrollSpeed = minSpeed; |
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611 } |
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612 if( iScrollSpeed < KMinScrollSpeed ) |
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613 { |
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614 iScrollSpeed = KMinScrollSpeed; |
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615 } |
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616 if (iTimer->IsActive()) |
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617 { |
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618 iTimer->Cancel(); |
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619 } |
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620 |
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621 iTimer->Start(KDrawDelay, KDrawDelay, TCallBack( |
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622 TimerCallback, this)); |
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623 } |
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624 |
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625 |
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626 // ----------------------------------------------------------------------------- |
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627 // ----------------------------------------------------------------------------- |
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628 // |
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629 void CXnViewSwitcher::ViewSwitchEndedL() |
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630 { |
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631 iViewSwitchState = KViewSwitchIdle; |
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632 |
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633 if (iTimer->IsActive()) |
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634 { |
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635 iTimer->Cancel(); |
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636 } |
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637 |
|
638 iViewPosition.iX = 0; |
|
639 |
|
640 if ( iCurrentView.iAdapter ) |
|
641 { |
|
642 CXnViewManager& wManager( iAppUi.ViewManager() ); |
|
643 CXnViewData* activeViewData( &wManager.ActiveViewData() ); |
|
644 |
|
645 switch( iActivateView ) |
|
646 { |
|
647 case KCurrentView: |
|
648 SetVisible( iNextView.iAdapter, EFalse ); |
|
649 SetVisible( iPreviousView.iAdapter, EFalse ); |
|
650 |
|
651 if( iCurrentView.iViewData && activeViewData != iCurrentView.iViewData ) |
|
652 { |
|
653 wManager.ActivateViewL( *iCurrentView.iViewData, TUid::Null(), EFalse ); |
|
654 } |
|
655 break; |
|
656 case KPreviousView: |
|
657 if ( iPreviousView.iAdapter ) |
|
658 { |
|
659 SetVisible( iCurrentView.iAdapter, EFalse ); |
|
660 if( iPreviousView.iAdapter != iNextView.iAdapter ) |
|
661 { |
|
662 SetVisible( iNextView.iAdapter, EFalse ); |
|
663 } |
|
664 |
|
665 CXnViewData* prevViewData( ViewData( *iCurrentView.iViewData, KPreviousView ) ); |
|
666 if( prevViewData && activeViewData != prevViewData ) |
|
667 { |
|
668 wManager.ActivateViewL( *prevViewData, TUid::Null(), EFalse ); |
|
669 } |
|
670 } |
|
671 break; |
|
672 case KNextView: |
|
673 if ( iNextView.iAdapter ) |
|
674 { |
|
675 SetVisible( iCurrentView.iAdapter, EFalse ); |
|
676 if( iPreviousView.iAdapter != iNextView.iAdapter ) |
|
677 { |
|
678 SetVisible( iPreviousView.iAdapter, EFalse ); |
|
679 } |
|
680 |
|
681 CXnViewData* nextViewData( ViewData( *iCurrentView.iViewData, KNextView ) ); |
|
682 if( nextViewData && activeViewData != nextViewData ) |
|
683 { |
|
684 wManager.ActivateViewL( *nextViewData, TUid::Null(), EFalse ); |
|
685 } |
|
686 } |
|
687 break; |
|
688 } |
|
689 |
|
690 ClearViews(); |
|
691 } |
|
692 } |
|
693 |
|
694 // ----------------------------------------------------------------------------- |
|
695 // ----------------------------------------------------------------------------- |
|
696 // |
|
697 void CXnViewSwitcher::Scroll() |
|
698 { |
|
699 TInt scrollStep = iScrollDistance / 1.5; |
|
700 |
|
701 if( Abs( scrollStep ) > Abs( iScrollSpeed ) ) |
|
702 { |
|
703 scrollStep = ( scrollStep > 0 ) ? iScrollSpeed : -iScrollSpeed; |
|
704 } |
|
705 |
|
706 iViewPosition.iX += scrollStep; |
|
707 iScrollDistance -= scrollStep; |
|
708 } |
|
709 |
|
710 // ----------------------------------------------------------------------------- |
|
711 // ----------------------------------------------------------------------------- |
|
712 // |
|
713 void CXnViewSwitcher::DoScroll() |
|
714 { |
|
715 SetWindowPosition( iCurrentView.iAdapter, iViewPosition ); |
|
716 |
|
717 if( iViewPosition.iX < 0 && iNextView.iAdapter ) |
|
718 { |
|
719 // next view shown |
|
720 if( !iNextView.iReadyToDraw ) |
|
721 { |
|
722 TRAP_IGNORE( PrepareViewL( iNextView ) ); |
|
723 if( iPreviousView.iAdapter == iNextView.iAdapter ) |
|
724 { |
|
725 iPreviousView.iReadyToDraw = ETrue; |
|
726 } |
|
727 } |
|
728 |
|
729 ShowAdapter( iNextView.iAdapter ); |
|
730 if( iPreviousView.iAdapter != iNextView.iAdapter ) |
|
731 { |
|
732 HideAdapter( iPreviousView.iAdapter ); |
|
733 } |
|
734 |
|
735 TPoint pos( TPoint( iViewPosition.iX + iRect.Width(), iViewPosition.iY ) ); |
|
736 SetWindowPosition( iNextView.iAdapter, pos ); |
|
737 } |
|
738 |
|
739 else if( iViewPosition.iX > 0 && iPreviousView.iAdapter ) |
|
740 { |
|
741 // previous view shown |
|
742 if( !iPreviousView.iReadyToDraw ) |
|
743 { |
|
744 TRAP_IGNORE( PrepareViewL( iPreviousView ) ); |
|
745 } |
|
746 |
|
747 ShowAdapter( iPreviousView.iAdapter ); |
|
748 if( iPreviousView.iAdapter != iNextView.iAdapter ) |
|
749 { |
|
750 HideAdapter( iNextView.iAdapter ); |
|
751 } |
|
752 TPoint pos( TPoint( iViewPosition.iX - iRect.Width(), iViewPosition.iY ) ); |
|
753 SetWindowPosition( iPreviousView.iAdapter, pos ); |
|
754 } |
|
755 |
|
756 else |
|
757 { |
|
758 HideAdapter( iPreviousView.iAdapter ); |
|
759 HideAdapter( iNextView.iAdapter ); |
|
760 } |
|
761 } |
|
762 |
|
763 // ----------------------------------------------------------------------------- |
|
764 // ----------------------------------------------------------------------------- |
|
765 // |
|
766 TInt CXnViewSwitcher::TimerCallback(TAny *aPtr) |
|
767 { |
|
768 CXnViewSwitcher* self = reinterpret_cast<CXnViewSwitcher*> (aPtr); |
|
769 |
|
770 if( self->iViewSwitchState == KViewSwitchDragOngoing ) |
|
771 { |
|
772 TInt prevViewPos( self->iViewPosition.iX ); |
|
773 self->iViewPosition.iX = self->iViewStartPosition.iX + self->iScrollDistance; |
|
774 self->DoScroll(); |
|
775 |
|
776 self->UpdateViewToBeActivated( KDragOffsetForBackground ); |
|
777 |
|
778 // Hack for informing NGA to draw. |
|
779 self->iAppUi.ViewAdapter().BgManager().DrawNow(TRect(0,0,1,1)); |
|
780 |
|
781 // Scroll speed is average drag delta between timer callbacks. |
|
782 self->iTickAmount++; |
|
783 |
|
784 TInt scrollDistance = self->iViewPosition.iX - prevViewPos; |
|
785 |
|
786 if( ( scrollDistance < 0 && self->iScrollDirectionDistance > 0 ) || |
|
787 ( scrollDistance > 0 && self->iScrollDirectionDistance < 0 ) ) |
|
788 { |
|
789 // Scroll direction has been changed |
|
790 self->iScrollDirectionDistance = scrollDistance; |
|
791 self->iScrollSpeed = scrollDistance; |
|
792 self->iTickAmount = 1; |
|
793 } |
|
794 else |
|
795 { |
|
796 self->iScrollDirectionDistance += scrollDistance; |
|
797 self->iScrollSpeed = self->iScrollDistance / self->iTickAmount; |
|
798 } |
|
799 |
|
800 if( scrollDistance < 0 ) |
|
801 { |
|
802 self->iDirection = KNextView; |
|
803 } |
|
804 else if( scrollDistance > 0 ) |
|
805 { |
|
806 self->iDirection = KPreviousView; |
|
807 } |
|
808 |
|
809 return 0; |
|
810 } |
|
811 |
|
812 if ( Abs( self->iScrollDistance ) <= 2 ) |
|
813 { |
|
814 TRAP_IGNORE( self->ViewSwitchEndedL() ); |
|
815 } |
|
816 else |
|
817 { |
|
818 self->Scroll(); |
|
819 self->DoScroll(); |
|
820 |
|
821 // Hack for inforing NGA to draw. |
|
822 self->iAppUi.ViewAdapter().BgManager().DrawNow(TRect(0,0,1,1)); |
|
823 } |
|
824 return 0; |
|
825 } |
|
826 |
|
827 // ----------------------------------------------------------------------------- |
|
828 // ----------------------------------------------------------------------------- |
|
829 // |
|
830 TBool CXnViewSwitcher::IsFingerFollowSupportedL() const |
|
831 { |
|
832 CRepository* repository = |
|
833 CRepository::NewL(TUid::Uid(KCRUidActiveIdleLV)); |
|
834 TBool value(EFalse); |
|
835 TInt err(repository->Get(KAIFingerFollowSupport, value)); |
|
836 delete repository; |
|
837 |
|
838 return value && (KErrNone == err); |
|
839 } |
|
840 |
|
841 // ----------------------------------------------------------------------------- |
|
842 // ----------------------------------------------------------------------------- |
|
843 // |
|
844 CXnViewData* CXnViewSwitcher::ViewData( CXnViewData& aCurrentViewData, |
|
845 TInt aView ) |
|
846 { |
|
847 CXnRootData& rootData = iAppUi.ViewManager().ActiveAppData(); |
|
848 RPointerArray<CXnPluginData>& rootDataArr = rootData.PluginData(); |
|
849 |
|
850 CXnViewData* ret( NULL ); |
|
851 |
|
852 TInt viewAmount( rootDataArr.Count() ); |
|
853 for( TInt i = 0; i < viewAmount; i++ ) |
|
854 { |
|
855 CXnViewData* viewData = static_cast<CXnViewData*>( rootDataArr[i] ); |
|
856 if( &aCurrentViewData == viewData ) |
|
857 { |
|
858 if( aView == KNextView ) |
|
859 { |
|
860 if( i < viewAmount - 1 ) |
|
861 { |
|
862 ret = static_cast<CXnViewData*>( rootDataArr[i + 1] ); |
|
863 } |
|
864 else |
|
865 { |
|
866 ret = static_cast<CXnViewData*>( rootDataArr[0] ); |
|
867 } |
|
868 break; |
|
869 } |
|
870 else if( aView == KPreviousView ) |
|
871 { |
|
872 if( i == 0 ) |
|
873 { |
|
874 ret = static_cast<CXnViewData*>( rootDataArr[viewAmount - 1] ); |
|
875 } |
|
876 else |
|
877 { |
|
878 ret = static_cast<CXnViewData*>( rootDataArr[i - 1] ); |
|
879 } |
|
880 break; |
|
881 } |
|
882 } |
|
883 } |
|
884 |
|
885 return ret; |
|
886 } |
|
887 |
|
888 // ----------------------------------------------------------------------------- |
|
889 // ----------------------------------------------------------------------------- |
|
890 // |
|
891 void CXnViewSwitcher::ClearViews() |
|
892 { |
|
893 TPoint p( 0, iCurrentView.iAdapter->Window().Position().iY ); |
|
894 SetWindowPosition( iCurrentView.iAdapter, p ); |
|
895 SetWindowPosition( iPreviousView.iAdapter, p ); |
|
896 SetWindowPosition( iNextView.iAdapter, p ); |
|
897 ShowAdapter( iPreviousView.iAdapter ); |
|
898 ShowAdapter( iNextView.iAdapter ); |
|
899 ShowAdapter( iCurrentView.iAdapter ); |
|
900 iCurrentView.iAdapter = NULL; |
|
901 iCurrentView.iViewData = NULL; |
|
902 iCurrentView.iReadyToDraw = EFalse; |
|
903 iCurrentView.iBgDrawn = EFalse; |
|
904 iNextView.iAdapter = NULL; |
|
905 iNextView.iViewData = NULL; |
|
906 iNextView.iReadyToDraw = EFalse; |
|
907 iNextView.iBgDrawn = EFalse; |
|
908 iPreviousView.iAdapter = NULL; |
|
909 iPreviousView.iViewData = NULL; |
|
910 iPreviousView.iReadyToDraw = EFalse; |
|
911 iPreviousView.iBgDrawn = EFalse; |
|
912 } |
|
913 |
|
914 // ----------------------------------------------------------------------------- |
|
915 // ----------------------------------------------------------------------------- |
|
916 // |
|
917 void CXnViewSwitcher::UpdateViewToBeActivated( TInt aOffset ) |
|
918 { |
|
919 if ( iViewPosition.iX > aOffset && iDirection == KPreviousView && |
|
920 iScrollDirectionDistance > aOffset / 2) |
|
921 { |
|
922 if( iActivateView != KPreviousView && |
|
923 iPreviousView.iViewData && iCurrentView.iViewData ) |
|
924 { |
|
925 iActivateView = KPreviousView; |
|
926 if( !iPreviousView.iBgDrawn ) |
|
927 { |
|
928 ChangeBackground( *iCurrentView.iViewData, |
|
929 *iPreviousView.iViewData ); |
|
930 iPreviousView.iBgDrawn = ETrue; |
|
931 iNextView.iBgDrawn = EFalse; |
|
932 iCurrentView.iBgDrawn = EFalse; |
|
933 } |
|
934 } |
|
935 } |
|
936 else if ( iViewPosition.iX < -aOffset && iDirection == KNextView && |
|
937 iScrollDirectionDistance < -aOffset / 2 ) |
|
938 { |
|
939 if( iActivateView != KNextView && |
|
940 iNextView.iViewData && iCurrentView.iViewData ) |
|
941 { |
|
942 iActivateView = KNextView; |
|
943 if( !iNextView.iBgDrawn ) |
|
944 { |
|
945 ChangeBackground( *iCurrentView.iViewData, |
|
946 *iNextView.iViewData ); |
|
947 iPreviousView.iBgDrawn = EFalse; |
|
948 iNextView.iBgDrawn = ETrue; |
|
949 iCurrentView.iBgDrawn = EFalse; |
|
950 } |
|
951 } |
|
952 } |
|
953 else if( iActivateView != KCurrentView && |
|
954 iPreviousView.iViewData && iNextView.iViewData && iCurrentView.iViewData ) |
|
955 { |
|
956 if( Abs( iScrollDirectionDistance ) > aOffset / 2 ) |
|
957 { |
|
958 iActivateView = KCurrentView; |
|
959 if( !iCurrentView.iBgDrawn ) |
|
960 { |
|
961 ChangeBackground( ( iPreviousView.iBgDrawn ) ? *iPreviousView.iViewData : |
|
962 *iNextView.iViewData, *iCurrentView.iViewData ); |
|
963 iPreviousView.iBgDrawn = EFalse; |
|
964 iNextView.iBgDrawn = EFalse; |
|
965 iCurrentView.iBgDrawn = ETrue; |
|
966 } |
|
967 } |
|
968 } |
|
969 } |
|
970 |
|
971 // ----------------------------------------------------------------------------- |
|
972 // ----------------------------------------------------------------------------- |
|
973 // |
|
974 void CXnViewSwitcher::ChangeBackground( CXnViewData& aCurrent, CXnViewData& aNext ) |
|
975 { |
|
976 CXnBackgroundManager& bg( iAppUi.ViewAdapter().BgManager() ); |
|
977 |
|
978 GfxTransEffect::Begin( &bg, KGfxControlActionBgImgToImgAppear ); |
|
979 |
|
980 bg.ChangeWallpaper( aCurrent, aNext, EFalse ); |
|
981 |
|
982 GfxTransEffect::SetDemarcation( &bg, bg.Position() ); |
|
983 GfxTransEffect::End( &bg ); |
|
984 } |
|
985 |
|
986 // ----------------------------------------------------------------------------- |
|
987 // ----------------------------------------------------------------------------- |
|
988 // |
|
989 void CXnViewSwitcher::StopViewSwitchL() |
|
990 { |
|
991 ViewSwitchEndedL(); |
|
992 } |
|
993 |
|
994 // End of file |
|