Mercurial > hg > batmud > maputils

annotate src/citymap.js @ 2728:4e2f9e5b0579

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Change mapGetWindowSize() to mapGetElementSize(elem) and adjust users accordingly.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 07 Mar 2024 11:07:24 +0200
parents 6683547af623
children
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1 //
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2 // Positioning, tooltip etc utility functions in JavaScript for BatMUD maps
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3 // Programmed by Matti 'ccr' Hamalainen <ccr@tnsp.org>
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4 // (C) Copyright 2006-2024 Tecnic Software productions (TNSP)
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5 //
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6 var mapTipData = null;
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7 var mapTipItem = null, mapTipTitle = null, mapTipNames = null, mapTipFreeform;
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8 var mapTipXC = 0, mapTipYC = 0;
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9
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10 var mapElem = null, listElem = null, mapElemPrev = null;
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11 var mapDragEnable = true, mapDragGoing = false;
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12 var mapDragPos = { x: 0, y: 0, mx: 0, my: 0 };
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13 var mapCurrID;
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14
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15
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16 function mapGetElementCoords(elem)
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17 {
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18 var xc = yc = 0;
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19 if (elem.offsetParent)
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20 {
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21 xc = elem.offsetLeft;
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22 yc = elem.offsetTop;
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23 while (elem = elem.offsetParent)
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24 {
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25 xc += elem.offsetLeft;
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26 yc += elem.offsetTop;
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27 }
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28 }
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29
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30 return { x: xc, y: yc, mx: 0, my: 0 };
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31 }
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32
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33
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34 function mapGetElementSize(elem)
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35 {
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36 var elemW, elemH;
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37 if (elem.clientWidth || elem.clientHeight)
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38 {
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39 elemW = elem.clientWidth;
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40 elemH = elem.clientHeight;
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41 }
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42 else
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43 if (typeof(elem.innerWidth) == 'number')
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44 {
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45 elemW = elem.innerWidth;
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46 elemH = elem.innerHeight;
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47 }
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48 else
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49 {
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50 elemW = elemH = 0;
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51 }
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52
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53 return { w: elemW, h: elemH };
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54 }
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55
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56
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57 // Add or remove given CSS class to specified element
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58 function mapSetStyle(uid, ustyle, uset)
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59 {
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60 var uelem = document.getElementById(uid);
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61 if (uelem)
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62 {
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63 if (uset)
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64 uelem.classList.add(ustyle);
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65 else
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66 uelem.classList.remove(ustyle);
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67 }
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68 }
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69
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70
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71 // Update the tooltip box
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72 function mapTooltipUpdate(ev)
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73 {
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74 var x = document.all ? (window.event.x + document.body.scrollLeft) : ev.pageX;
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75 var y = document.all ? (window.event.y + document.body.scrollTop) : ev.pageY;
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76 if (mapTipItem != null)
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77 {
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78 const dim = mapGetElementSize(window);
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79 var boxW = mapTipItem.clientWidth + 25, boxH = mapTipItem.clientHeight + 25;
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80
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81 if (x + boxW + 15 >= dim.w)
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82 x -= boxW;
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83 else
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84 x += 15;
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85
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86 if (y + boxH + 15 >= dim.h)
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87 y -= boxH;
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88 else
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89 y += 15;
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90
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91 mapTipXC = x;
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92 mapTipYC = y;
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93
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94 mapTipItem.style.left = x + "px";
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95 mapTipItem.style.top = y + "px";
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96 }
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97 }
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98
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99
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100 function mapTooltipShow(ev)
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101 {
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102 const eid = ev.target.dataset.id;
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103 mapTipData = document.getElementById("listloc"+ eid);
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104 if (mapTipData != null)
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105 {
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106 mapTipTitle.textContent = mapTipData.dataset.ttTitle;
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107 mapTipNames.textContent = mapTipData.dataset.ttNames;
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108 mapTipFreeform.textContent = mapTipData.dataset.ttFreeform;
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109 }
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110
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111 mapTipItem.style.left = mapTipXC + "px";
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112 mapTipItem.style.top = mapTipYC + "px";
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113 mapTipItem.style.display = "block";
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114 mapTooltipUpdate(ev);
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115 }
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116
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117
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118 function mapTooltipHide(ev)
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119 {
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120 if (mapTipItem)
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121 {
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122 mapTipItem.style.display = "none";
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123 }
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124 }
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125
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126
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127 function mapSetActive(eid, uset)
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128 {
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129 mapSetStyle('maploc'+eid, "locactive", uset);
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130 mapSetStyle('listloc'+eid, "locactive", uset);
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131 }
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132
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133
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134 function mapLocationShow2(ev)
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135 {
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136 const eid = ev.target.dataset.id;
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137
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138 if (mapElemPrev != null) mapSetActive(mapElemPrev, false);
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139 mapSetActive(eid, true);
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140 mapElemPrev = eid;
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141 }
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142
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143
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144 function mapLocationHide(ev)
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145 {
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146 if (mapElemPrev != null) mapSetActive(mapElemPrev, false);
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147 mapElemPrev = null;
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148 mapTooltipHide(ev);
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149 }
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150
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151
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152 function mapLocationShow1(ev)
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153 {
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154 const eid = ev.target.dataset.id;
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155 mapLocationShow2(ev);
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156
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157 mapTooltipHide(ev);
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158 mapTooltipShow(ev);
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159 }
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160
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161
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162 function mapSetWindowPosToID(eid)
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163 {
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164 const dim = mapGetElementSize(mapElem);
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165 var nelem = document.getElementById('maploc'+eid);
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166 if (nelem)
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167 {
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168 const pos = mapGetElementCoords(nelem);
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169 mapDragPos.x = pos.x - (dim.w / 2);
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170 mapDragPos.y = pos.y - (dim.h / 2);
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171
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172 mapElem.scrollLeft = mapDragPos.x;
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173 mapElem.scrollTop = mapDragPos.y;
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174 }
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175
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176 nelem = document.getElementById('listloc'+eid);
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177 if (nelem)
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178 {
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179 const pos = mapGetElementCoords(nelem);
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180 listElem.scrollTop = pos.y - 10;
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181 }
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182 }
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183
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184
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185 function mapLocationClick(ev)
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186 {
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187 const eid = ev.target.dataset.id;
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188 if (mapCurrID != eid)
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189 {
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190 mapSetStyle('maploc'+mapCurrID, "lochilite", false);
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191 mapSetStyle('listloc'+mapCurrID, "lochilite", false);
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192 }
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193 mapCurrID = eid;
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194
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195 mapSetStyle('maploc'+eid, "lochilite", true);
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196 mapSetStyle('listloc'+eid, "lochilite", true);
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197 mapSetWindowPosToID(eid);
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198 }
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199
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200
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201 function mapDragUpHandler(ev)
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202 {
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203 if (mapDragGoing)
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204 {
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205 mapDragGoing = false;
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206 mapElem.style.cursor = "grab";
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207 mapElem.style.removeProperty("user-select");
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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 function mapDragMoveHandler(ev)
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213 {
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214 mapTooltipUpdate(ev);
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215 if (mapDragGoing)
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216 {
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217 const dx = ev.clientX - mapDragPos.mx;
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218 const dy = ev.clientY - mapDragPos.my;
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219
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220 mapElem.scrollLeft = mapDragPos.x - dx;
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221 mapElem.scrollTop = mapDragPos.y - dy;
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222 }
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223 }
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224
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225
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226 function mapDragStartPan(ev)
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227 {
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228 if (mapDragEnable)
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229 {
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230 mapElem.style.cursor = "grabbing";
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231 mapElem.style.userSelect = "none";
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232
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233 mapDragPos = {
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234 x: mapElem.scrollLeft,
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235 y: mapElem.scrollTop,
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236 mx: ev.clientX,
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237 my: ev.clientY,
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238 };
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239
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240 mapDragGoing = true;
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241 }
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242 }
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243
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244
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245 function mapOnLoad()
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246 {
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247 mapElem = document.getElementById("smap");
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248 listElem = document.getElementById("loclist");
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249
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250 mapElem.style.cursor = "grab";
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251
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252 // Create tooltip div
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253 mapTipItem = document.createElement("div");
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254 mapTipItem.id = "tooltip";
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255 mapTipItem.style.display = "none";
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256 mapTipTitle = document.createElement("h1");
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257 mapTipNames = document.createElement("div");
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258 mapTipNames.className = "names";
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259 mapTipFreeform = document.createElement("div");
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260 mapTipFreeform.className = "freeform";
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261 mapTipItem.appendChild(mapTipTitle);
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262 mapTipItem.appendChild(mapTipNames);
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263 mapTipItem.appendChild(mapTipFreeform);
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264 document.body.appendChild(mapTipItem);
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265
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266 // Add event listeners to locations
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267 var elems = document.getElementsByClassName("loc");
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268 for (let i = 0; i < elems.length; i++)
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269 {
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270 var elem = elems[i];
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271 elem.addEventListener("mouseover", mapTooltipShow);
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272 elem.addEventListener("mouseout", mapTooltipHide);
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273 elem.addEventListener("click", mapLocationClick);
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274 }
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275
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276 // .. and location list items
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277 var elems = document.getElementsByClassName("item");
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278 for (let i = 0; i < elems.length; i++)
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279 {
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280 var elem = elems[i];
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281 elem.addEventListener("mouseover", elem.dataset.info == "true" ? mapLocationShow1 : mapLocationShow2);
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282 elem.addEventListener("mouseout", mapLocationHide);
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283 elem.addEventListener("click", mapLocationClick);
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284 }
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285
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286 // And map navigation / tooltip stuff
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287 mapElem.addEventListener("mousedown", mapDragStartPan);
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288 document.addEventListener("mousemove", mapDragMoveHandler);
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289 document.addEventListener("mouseup", mapDragUpHandler);
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290
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291 // Finally, scroll to position
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292 var slink = window.location.href;
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293 if ((spos = slink.indexOf("#")) >= 0)
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294 {
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295 var eid = unescape(slink.substr(spos + 1).toLowerCase()).trim();
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296 var elem = document.getElementById('maploc'+eid);
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297 if (elem)
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298 {
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299 mapCurrID = eid;
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300
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301 mapSetStyle('maploc'+eid, "lochilite", true);
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302 mapSetStyle('listloc'+eid, "lochilite", true);
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303
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304 setTimeout(function()
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305 {
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306 mapSetWindowPosToID(eid);
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307 },
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308 50);
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309 }
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310 }
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311 }