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annotate webapp/src/main/webapp/jquery/jquery.digilib.regions.js @ 1067:a45894a81e40

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#26: minor enhancements for the regions plugin
author hertzhaft
date Wed, 04 Apr 2012 01:59:13 +0200
parents d9abeaa44c49
children 16215fc22fbf
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1 /** optional digilib regions plugin
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2
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3 Mark up a digilib image with rectangular regions.
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4
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5 If hasRegionInfo=true reads regions from page HTML.
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6 Element with regions has to be in digilib element, e.g.
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7
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8 <map class="dl-keep dl-regioncontent">
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9 <area href="http://www.mpiwg-berlin.mpg.de" coords="0.1,0.1,0.4,0.1" alt="MPI fuer Wissenschaftsgeschichte"/>
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10 <area href="http://www.biblhertz.it" coords="0.5,0.8,0.4,0.1" alt="Bibliotheca Hertziana"/>
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11 <area coords="0.3,0.5,0.15,0.1" />
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12 </map>
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13
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14 According to the HTML specs, "area" and "a" elements are allowed inside of a "map".
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15 Both can have a "coords" attribute, but "area" elements can't contain child nodes.
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16 To have regions with content use "a" tags, e.g.
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17
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18 <map class="dl-keep dl-regioncontent">
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19 <a href="http://www.mpiwg-berlin.mpg.de" coords="0.4907,0.3521,0.1458,0.107">
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20 MPI fuer Wissenschaftsgeschichte
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21 </a>
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22 <a href="http://www.biblhertz.it" coords="0.3413,0.2912,0.4345,0.2945">
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23 Bibliotheca Hertziana
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24 </a>
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25 <area coords="0.3,0.5,0.15,0.1" />
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26 </map>
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27
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28 */
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29
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30 (function($) {
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31 // the digilib object
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32 var digilib = null;
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33 // the functions made available by digilib
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34 var fn = {
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35 // dummy function to avoid errors, gets overwritten by buttons plugin
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36 highlightButtons : function () {
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37 console.debug('regions: dummy function - highlightButtons');
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38 }
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39 };
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40 // affine geometry plugin
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41 var geom = null;
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42
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43 var buttons = {
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44 addregion : {
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45 onclick : "defineRegion",
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46 tooltip : "define a region",
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47 icon : "addregion.png"
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48 },
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49 delregion : {
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50 onclick : "removeRegion",
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51 tooltip : "delete the last region",
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52 icon : "delregion.png"
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53 },
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54 delallregions : {
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55 onclick : "removeAllRegions",
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56 tooltip : "delete all regions",
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57 icon : "delallregions.png"
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58 },
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59 regions : {
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60 onclick : "toggleRegions",
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61 tooltip : "show or hide regions",
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62 icon : "regions.png"
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63 },
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64 regioninfo : {
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65 onclick : "showRegionInfo",
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66 tooltip : "show information about regions",
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67 icon : "regioninfo.png"
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68 }
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69 };
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70
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71 var defaults = {
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72 // are regions shown?
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73 'isRegionVisible' : true,
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74 // are region numbers shown?
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75 'showRegionNumbers' : true,
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76 // is there region content in the page?
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77 'processHtmlRegions' : false,
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78 // region defined by users and in the URL
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79 'processUserRegions' : true,
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80 // turn any region into a clickable link to its detail view
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81 'autoZoomRegionLinks' : false,
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82 // use full region as klickable link (instead of only number and text)
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83 'fullRegionLinks' : false,
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84 // css selector for area elements (must also be marked with class "dl-keep")
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85 'htmlRegionsSelector' : 'map.dl-regioncontent area, map.dl-regioncontent a',
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86 // buttonset of this plugin
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87 'regionSet' : ['regions', 'addregion', 'delregion', 'delallregions', 'regioninfo', 'lessoptions'],
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88 // url param for regions
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89 'rg' : null
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90 };
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91
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92 var actions = {
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93
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94 // define a region interactively with two clicked points
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95 defineRegion : function(data) {
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96 if (!data.settings.isRegionVisible) {
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97 alert("Please turn on regions visibility!");
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98 return;
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99 }
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100 var cssPrefix = data.settings.cssPrefix;
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101 var $elem = data.$elem;
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102 var $body = $('body');
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103 var bodyRect = geom.rectangle($body);
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104 var $scaler = data.$scaler;
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105 var scalerRect = geom.rectangle($scaler);
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106 var pt1, pt2;
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107 // overlay prevents other elements from reacting to mouse events
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108 var $overlay = $('<div class="'+cssPrefix+'overlay" style="position:absolute"/>');
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109 $body.append($overlay);
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110 bodyRect.adjustDiv($overlay);
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111 var $regionDiv = addRegionDiv(data, data.regions.length);
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112
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113 // mousedown handler: start sizing
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114 var regionStart = function (evt) {
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115 pt1 = geom.position(evt);
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116 // setup and show zoom div
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117 pt1.adjustDiv($regionDiv);
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118 $regionDiv.width(0).height(0);
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119 $regionDiv.show();
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120 // register mouse events
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121 $overlay.on("mousemove.dlRegion", regionMove);
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122 $overlay.on("mouseup.dlRegion", regionEnd);
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123 return false;
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124 };
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125
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126 // mousemove handler: size region
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127 var regionMove = function (evt) {
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128 pt2 = geom.position(evt);
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129 var rect = geom.rectangle(pt1, pt2);
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130 rect.clipTo(scalerRect);
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131 // update region
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132 rect.adjustDiv($regionDiv);
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133 return false;
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134 };
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135
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136 // mouseup handler: end sizing
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137 var regionEnd = function (evt) {
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138 pt2 = geom.position(evt);
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139 // assume a click and continue if the area is too small
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140 var clickRect = geom.rectangle(pt1, pt2);
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141 if (clickRect.getArea() <= 5) return false;
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142 // unregister mouse events and get rid of overlay
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143 $overlay.off("mousemove.dlRegion", regionMove);
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144 $overlay.off("mouseup.dlRegion", regionEnd);
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145 $overlay.remove();
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146 // clip region
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147 clickRect.clipTo(scalerRect);
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148 clickRect.adjustDiv($regionDiv);
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149 storeRegion(data, $regionDiv);
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150 // fn.redisplay(data);
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151 fn.highlightButtons(data, 'addregion', 0);
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152 redisplay(data);
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153 return false;
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154 };
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155
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156 // bind start zoom handler
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157 $overlay.one('mousedown.dlRegion', regionStart);
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158 fn.highlightButtons(data, 'addregion', 1);
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159 },
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160
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161 // remove the last added region
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162 removeRegion : function (data) {
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163 if (!data.settings.isRegionVisible) {
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164 alert("Please turn on regions visibility!");
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165 return;
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166 }
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167 var region = data.regions.pop();
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168 if (region == null) return;
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169 var $regionDiv = region.$div;
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170 $regionDiv.remove();
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171 redisplay(data);
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172 },
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173
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174 // remove the last added region
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175 removeAllRegions : function (data) {
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176 if (!data.settings.isRegionVisible) {
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177 alert("Please turn on regions visibility!");
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178 return;
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179 }
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180 var cssPrefix = data.settings.cssPrefix;
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181 var $regions = data.$elem.find('div.'+cssPrefix+'region');
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182 $regions.remove();
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183 data.regions = [];
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184 redisplay(data);
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185 },
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186
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187 // show/hide regions
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188 toggleRegions : function (data) {
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189 var show = !data.settings.isRegionVisible;
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190 data.settings.isRegionVisible = show;
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191 fn.highlightButtons(data, 'regions', show);
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47a6b93bde43 always show html-defined regions. wrong pos still not fixed
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192 renderRegions(data, 1);
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193 },
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194
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195 // show region info in a window
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196 showRegionInfo : function (data) {
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197 var $elem = data.$elem;
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198 var cssPrefix = data.settings.cssPrefix;
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199 var infoselector = '#'+cssPrefix+'regionInfo';
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200 if (fn.find(data, infoselector)) {
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201 fn.withdraw($info);
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202 return;
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203 }
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204 var html = '\
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205 <div id="'+cssPrefix+'regionInfo" class="'+cssPrefix+'keep '+cssPrefix+'regionInfo">\
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206 <table class="'+cssPrefix+'infoheader">\
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207 <tr>\
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208 <td class="'+cssPrefix+'infobutton html">HTML</td>\
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209 <td class="'+cssPrefix+'infobutton svgattr">SVG</td>\
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210 <td class="'+cssPrefix+'infobutton csv">CSV</td>\
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211 <td class="'+cssPrefix+'infobutton digilib">Digilib</td>\
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212 <td class="'+cssPrefix+'infobutton x">X</td>\
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213 </tr>\
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214 </table>\
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215 </div>';
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216 $info = $(html);
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217 $info.appendTo($elem);
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218 $info.append(regionInfoHTML(data));
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219 $info.append(regionInfoSVG(data));
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220 $info.append(regionInfoCSV(data));
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221 $info.append(regionInfoDigilib(data));
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222 var bind = function(name) {
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223 $info.find('.'+name).on('click.regioninfo', function () {
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224 $info.find('div.'+cssPrefix+'info').hide();
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225 $info.find('div.'+cssPrefix+name).show();
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226 fn.centerOnScreen(data, $info);
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e4133946a9ad display regions as HTML for use in digilib element
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227 });
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228 };
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229 bind('html');
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230 bind('svgattr');
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231 bind('csv');
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232 bind('digilib');
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233 $info.find('.x').on('click.regioninfo', function () {
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234 fn.withdraw($info);
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235 });
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236 $info.fadeIn();
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237 fn.centerOnScreen(data, $info);
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497ab03868ab moved marks to separate plugin. (pack and unpack is still in digilib.js)
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238 }
792
d742bd92b05a first step to a regions plugin
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239 };
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240
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241 // store a region div
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242 var storeRegion = function (data, $regionDiv) {
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243 var regions = data.regions;
1a7b14deae3a regions plugin works, inclunding event handlers
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244 var rect = geom.rectangle($regionDiv);
1a7b14deae3a regions plugin works, inclunding event handlers
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245 var regionRect = data.imgTrafo.invtransform(rect);
1a7b14deae3a regions plugin works, inclunding event handlers
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246 regionRect.$div = $regionDiv;
1a7b14deae3a regions plugin works, inclunding event handlers
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247 regions.push(regionRect);
1a7b14deae3a regions plugin works, inclunding event handlers
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248 console.debug("regions", data.regions, "regionRect", regionRect);
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249 };
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250
855
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251 // html for later insertion
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252 var regionInfoHTML = function (data) {
996
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253 var cssPrefix = data.settings.cssPrefix;
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254 var $infoDiv = $('<div class="'+cssPrefix+'info '+cssPrefix+'html"/>');
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255 $infoDiv.append($('<div/>').text('<map class="'+cssPrefix+'keep '+cssPrefix+'regioncontent">'));
855
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256 $.each(data.regions, function(index, r) {
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257 if (r.fromHtml) return;
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258 var area = [
872
d46706f0eede crop region info
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diff changeset
259 fn.cropFloatStr(r.x),
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260 fn.cropFloatStr(r.y),
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261 fn.cropFloatStr(r.width),
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262 fn.cropFloatStr(r.height)].join(',');
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263 $infoDiv.append($('<div/>').text('<area coords="' + area + '"/>'));
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264 });
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265 $infoDiv.append($('<div/>').text('</map>'));
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266 return $infoDiv;
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267 };
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268
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269 // SVG-style
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270 var regionInfoSVG = function (data) {
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271 var cssPrefix = data.settings.cssPrefix;
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272 var $infoDiv = $('<div class="'+cssPrefix+'info '+cssPrefix+'svgattr"/>');
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273 $.each(data.regions, function(index, r) {
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274 if (r.fromHtml) return;
872
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275 var area = [
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276 fn.cropFloatStr(r.x),
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diff changeset
277 fn.cropFloatStr(r.y),
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diff changeset
278 fn.cropFloatStr(r.width),
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279 fn.cropFloatStr(r.height)].join(' ');
855
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280 $infoDiv.append($('<div/>').text('"' + area + '"'));
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281 });
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282 return $infoDiv;
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283 };
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284
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285 // SVG-style
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286 var regionInfoCSV = function (data) {
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287 var cssPrefix = data.settings.cssPrefix;
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288 var $infoDiv = $('<div class="'+cssPrefix+'info '+cssPrefix+'csv"/>');
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diff changeset
289 $.each(data.regions, function(index, r) {
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290 if (r.fromHtml) return;
1060
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diff changeset
291 var area = [
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diff changeset
292 fn.cropFloatStr(r.x),
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diff changeset
293 fn.cropFloatStr(r.y),
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diff changeset
294 fn.cropFloatStr(r.width),
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diff changeset
295 fn.cropFloatStr(r.height)].join(',');
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diff changeset
296 $infoDiv.append($('<div/>').text(index+1 + ": " + area));
d9abeaa44c49 better region info
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297 });
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298 return $infoDiv;
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diff changeset
299 };
855
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300 // digilib-style
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301 var regionInfoDigilib = function (data) {
996
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302 var cssPrefix = data.settings.cssPrefix;
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303 var $infoDiv = $('<div class="'+cssPrefix+'info '+cssPrefix+'digilib"/>');
855
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304 $.each(data.regions, function(index, r) {
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305 if (r.fromHtml) return;
862
7ebdc106a61a second step towards zoom arrows
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parents: 855
diff changeset
306 var area = r.toString();
855
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diff changeset
307 $infoDiv.append($('<div/>').text(area));
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308 });
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309 return $infoDiv;
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310 };
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311
813
1a7b14deae3a regions plugin works, inclunding event handlers
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312 // add a region to data.$elem
873
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313 var addRegionDiv = function (data, index, attributes) {
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314 var settings = data.settings;
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315 var cssPrefix = settings.cssPrefix;
823
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316 var nr = index + 1; // we count regions from 1
996
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317 var $regionDiv = $('<div class="'+cssPrefix+'region '+cssPrefix+'overlay" style="display:none"/>');
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318 data.$elem.append($regionDiv);
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319 if (settings.showRegionNumbers) {
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4ee43243a6a0 more clean up.
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diff changeset
320 var $regionLink = $('<a class="'+cssPrefix+'regionnumber">'+nr+'</a>');
920
07c989c41b4f made plugins more jquery 1.7 compliant
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diff changeset
321 if (attributes) $regionLink.attr(attributes);
851
5922c444cd11 fixed region position bug in embedded mode, sigh
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diff changeset
322 $regionDiv.append($regionLink);
813
1a7b14deae3a regions plugin works, inclunding event handlers
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diff changeset
323 }
1025
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diff changeset
324 var url = null;
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diff changeset
325 if (attributes) {
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diff changeset
326 // copy attributes to div except href
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diff changeset
327 if (attributes.href) {
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diff changeset
328 url = attributes.href;
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329 // copy attributes
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diff changeset
330 var attrs = $.extend({}, attributes);
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diff changeset
331 delete attrs.href;
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diff changeset
332 $regionDiv.attr(attrs);
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diff changeset
333 } else {
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diff changeset
334 $regionDiv.attr(attributes);
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diff changeset
335 }
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diff changeset
336 }
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diff changeset
337 if (settings.autoZoomRegionLinks || settings.fullRegionLinks) {
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diff changeset
338 // handle click events on div
1025
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diff changeset
339 var region = data.regions[index];
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diff changeset
340 $regionDiv.on('click.dlRegion', function(evt) {
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diff changeset
341 if (settings.fullRegionLinks && url) {
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diff changeset
342 //TODO: how about target?
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diff changeset
343 window.location = url;
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diff changeset
344 }
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diff changeset
345 if (evt.target !== $regionDiv.get(0)) {
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diff changeset
346 // this was not our event
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diff changeset
347 return;
1024
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diff changeset
348 }
1025
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diff changeset
349 if (settings.autoZoomRegionLinks) {
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diff changeset
350 // zoom to region
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diff changeset
351 digilib.actions.zoomArea(data, region);
1024
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diff changeset
352 }
851
5922c444cd11 fixed region position bug in embedded mode, sigh
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parents: 850
diff changeset
353 });
823
8af71d9d830b fixed automatic region links and region content
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parents: 818
diff changeset
354 }
813
1a7b14deae3a regions plugin works, inclunding event handlers
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parents: 808
diff changeset
355 return $regionDiv;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
356 };
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
357
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
358 // create a region div from the data.regions array
947
5bde01bcfb16 button plugin works now.
robcast
parents: 941
diff changeset
359 var createRegionDiv = function (data, regions, index, attributes) {
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
360 var region = regions[index];
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
361 // check if div exists
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
362 if (region.$div != null) return region.$div;
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
363 // create and add div
873
29f214f59654 copy more region attributes
hertzhaft
parents: 872
diff changeset
364 var $regionDiv = addRegionDiv(data, index, attributes);
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
365 region.$div = $regionDiv;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
366 return $regionDiv;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
367 };
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
368
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
369 // create regions from URL parameters
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
370 var createRegionsFromURL = function (data) {
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
371 unpackRegions(data);
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
372 var regions = data.regions;
832
e4133946a9ad display regions as HTML for use in digilib element
hertzhaft
parents: 824
diff changeset
373 $.each(regions, function(i) {
947
5bde01bcfb16 button plugin works now.
robcast
parents: 941
diff changeset
374 createRegionDiv(data, regions, i);
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
375 });
792
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
376 };
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
377
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
378 // create regions from HTML
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
379 var createRegionsFromHTML = function (data) {
823
8af71d9d830b fixed automatic region links and region content
hertzhaft
parents: 818
diff changeset
380 var regions = data.regions;
1025
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
381 // regions are defined in "area" tags
1067
a45894a81e40 #26: minor enhancements for the regions plugin
hertzhaft
parents: 1060
diff changeset
382 var $content = data.$elem.find(data.settings.htmlRegionsSelector);
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
383 console.debug("createRegionsFromHTML. elems: ", $content);
835
9fa078dcb493 predefine region content with a rel=
hertzhaft
parents: 832
diff changeset
384 $content.each(function(index, a) {
9fa078dcb493 predefine region content with a rel=
hertzhaft
parents: 832
diff changeset
385 var $a = $(a);
852
4658ec2f9565 why not use coords attribute for coords?
hertzhaft
parents: 851
diff changeset
386 // the "coords" attribute contains the region coords (0..1)
4658ec2f9565 why not use coords attribute for coords?
hertzhaft
parents: 851
diff changeset
387 var coords = $a.attr('coords');
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
388 var pos = coords.split(',', 4);
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
389 var rect = geom.rectangle(pos[0], pos[1], pos[2], pos[3]);
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
390 rect.fromHtml = true;
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
391 regions.push(rect);
1024
4ee43243a6a0 more clean up.
robcast
parents: 1023
diff changeset
392 // copy some attributes
873
29f214f59654 copy more region attributes
hertzhaft
parents: 872
diff changeset
393 var attributes = {};
1024
4ee43243a6a0 more clean up.
robcast
parents: 1023
diff changeset
394 for (var n in {'id':1, 'href':1, 'title':1, 'target':1, 'style':1}) {
4ee43243a6a0 more clean up.
robcast
parents: 1023
diff changeset
395 attributes[n] = $a.attr(n);
4ee43243a6a0 more clean up.
robcast
parents: 1023
diff changeset
396 }
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
397 // create the div
947
5bde01bcfb16 button plugin works now.
robcast
parents: 941
diff changeset
398 var $regionDiv = createRegionDiv(data, regions, index, attributes);
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
399 var $contents = $a.contents().clone();
1025
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
400 if (attributes.href != null) {
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
401 // wrap contents in a-tag
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
402 var $ca = $('<a href="'+attributes.href+'"/>');
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
403 $ca.append($contents);
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
404 // alt attribute is also content (BTW: area-tag has no content())
1025
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
405 $ca.append($a.attr('alt'));
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
406 $regionDiv.append($ca);
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
407 } else {
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
408 $regionDiv.append($contents);
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
409 // alt attribute is also content (BTW: area-tag has no content())
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
410 $regionDiv.append($a.attr('alt'));
c75858ee4452 more fiddling with regions.
robcast
parents: 1024
diff changeset
411 }
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
412 });
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
413 };
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
414
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
415 // show a region on top of the scaler image
850
47a6b93bde43 always show html-defined regions. wrong pos still not fixed
hertzhaft
parents: 848
diff changeset
416 var renderRegion = function (data, index, anim) {
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
417 if (!data.imgTrafo) return;
792
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
418 var regions = data.regions;
950
164d69e2c481 much nicer implementation of preview for scrolling and zooming.
robcast
parents: 947
diff changeset
419 var zoomArea = data.zoomArea;
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
420 if (index > regions.length) return;
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
421 var region = regions[index];
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
422 var $regionDiv = region.$div;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
423 if (!$regionDiv) {
950
164d69e2c481 much nicer implementation of preview for scrolling and zooming.
robcast
parents: 947
diff changeset
424 console.error("renderRegion: region has no $div", region);
850
47a6b93bde43 always show html-defined regions. wrong pos still not fixed
hertzhaft
parents: 848
diff changeset
425 // alert("renderRegion: region has no $div to show");
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
426 return;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
427 }
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
428 var regionRect = region.copy();
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
429 var show = data.settings.isRegionVisible;
1067
a45894a81e40 #26: minor enhancements for the regions plugin
hertzhaft
parents: 1060
diff changeset
430 if (show && zoomArea.overlapsRect(regionRect) && !regionRect.containsRect(zoomArea)) {
950
164d69e2c481 much nicer implementation of preview for scrolling and zooming.
robcast
parents: 947
diff changeset
431 regionRect.clipTo(zoomArea);
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
432 var screenRect = data.imgTrafo.transform(regionRect);
1067
a45894a81e40 #26: minor enhancements for the regions plugin
hertzhaft
parents: 1060
diff changeset
433 // console.debug("renderRegion: pos=",geom.position(screenRect));
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
434 if (anim) {
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
435 $regionDiv.fadeIn();
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
436 } else{
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
437 $regionDiv.show();
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
438 }
1024
4ee43243a6a0 more clean up.
robcast
parents: 1023
diff changeset
439 // adjustDiv sets wrong coords when called BEFORE show()
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
440 screenRect.adjustDiv($regionDiv);
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
441 } else {
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
442 if (anim) {
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
443 $regionDiv.fadeOut();
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
444 } else{
824
f0a5e4d2cba7 hide region when outside of zoomArea, not show
hertzhaft
parents: 823
diff changeset
445 $regionDiv.hide();
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
446 }
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
447 }
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
448 };
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
449
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
450 // show regions
850
47a6b93bde43 always show html-defined regions. wrong pos still not fixed
hertzhaft
parents: 848
diff changeset
451 var renderRegions = function (data, anim) {
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
452 for (var i = 0; i < data.regions.length ; i++) {
850
47a6b93bde43 always show html-defined regions. wrong pos still not fixed
hertzhaft
parents: 848
diff changeset
453 renderRegion(data, i, anim);
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
454 }
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
455 };
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
456
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
457 var unpackRegions = function (data) {
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
458 // create regions from parameters
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
459 var rg = data.settings.rg;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
460 if (rg == null) return;
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
461 var regions = data.regions;
958
2a2e8c039c29 changed regions parameter separator to the same as for marks
hertzhaft
parents: 950
diff changeset
462 var rs = rg.split(",");
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
463 for (var i = 0; i < rs.length; i++) {
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
464 var r = rs[i];
958
2a2e8c039c29 changed regions parameter separator to the same as for marks
hertzhaft
parents: 950
diff changeset
465 var pos = r.split("/", 4);
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
466 var rect = geom.rectangle(pos[0], pos[1], pos[2], pos[3]);
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
467 regions.push(rect);
792
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
468 }
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
469 };
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
470
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
471 // pack regions array into a parameter string
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
472 var packRegions = function (data) {
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
473 var regions = data.regions;
815
60e8cca7ac81 could not remove last region
hertzhaft
parents: 813
diff changeset
474 if (!regions.length) {
60e8cca7ac81 could not remove last region
hertzhaft
parents: 813
diff changeset
475 data.settings.rg = null;
60e8cca7ac81 could not remove last region
hertzhaft
parents: 813
diff changeset
476 return;
60e8cca7ac81 could not remove last region
hertzhaft
parents: 813
diff changeset
477 }
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
478 var rg = '';
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
479 for (var i = 0; i < regions.length; i++) {
1024
4ee43243a6a0 more clean up.
robcast
parents: 1023
diff changeset
480 var region = regions[i];
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
481 // skip regions from HTML
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
482 if (region.fromHtml != null) continue;
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
483 if (rg) {
958
2a2e8c039c29 changed regions parameter separator to the same as for marks
hertzhaft
parents: 950
diff changeset
484 rg += ',';
792
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
485 }
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
486 rg += [
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
487 fn.cropFloatStr(region.x),
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
488 fn.cropFloatStr(region.y),
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
489 fn.cropFloatStr(region.width),
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
490 fn.cropFloatStr(region.height)
958
2a2e8c039c29 changed regions parameter separator to the same as for marks
hertzhaft
parents: 950
diff changeset
491 ].join('/');
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
492 }
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
493 data.settings.rg = rg;
792
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
494 };
d742bd92b05a first step to a regions plugin
hertzhaft
parents:
diff changeset
495
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
496 // reload display after a region has been added or removed
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
497 var redisplay = function (data) {
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
498 if (data.settings.processUserRegions) {
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
499 packRegions(data);
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
500 }
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
501 fn.redisplay(data);
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
502 };
813
1a7b14deae3a regions plugin works, inclunding event handlers
hertzhaft
parents: 808
diff changeset
503
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
504 // event handler, reads region parameter and creates region divs
799
12f790cb30de started to adapt regions plugin to new plugin mechanism
hertzhaft
parents: 792
diff changeset
505 var handleSetup = function (evt) {
941
565789329189 fix non-local variable use.
robcast
parents: 920
diff changeset
506 var data = this;
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
507 var settings = data.settings;
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
508 console.debug("regions: handleSetup", settings.rg);
1048
4aa90cccb3e4 make plugins independent from buttons plugin
hertzhaft
parents: 1027
diff changeset
509 // regions with content are given in HTML divs
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
510 if (settings.processHtmlRegions) {
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
511 createRegionsFromHTML(data);
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
512 }
1048
4aa90cccb3e4 make plugins independent from buttons plugin
hertzhaft
parents: 1027
diff changeset
513 // regions are defined in the URL
1027
ff19b9e936d3 allow predefined and user regions at the same time.
robcast
parents: 1025
diff changeset
514 if (settings.processUserRegions) {
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
515 createRegionsFromURL(data);
818
eff74cfaaf97 read regions from HTML (not working yet), show info
hertzhaft
parents: 815
diff changeset
516 }
799
12f790cb30de started to adapt regions plugin to new plugin mechanism
hertzhaft
parents: 792
diff changeset
517 };
12f790cb30de started to adapt regions plugin to new plugin mechanism
hertzhaft
parents: 792
diff changeset
518
851
5922c444cd11 fixed region position bug in embedded mode, sigh
hertzhaft
parents: 850
diff changeset
519 // event handler, sets buttons and shows regions when scaler img is reloaded
799
12f790cb30de started to adapt regions plugin to new plugin mechanism
hertzhaft
parents: 792
diff changeset
520 var handleUpdate = function (evt) {
941
565789329189 fix non-local variable use.
robcast
parents: 920
diff changeset
521 var data = this;
850
47a6b93bde43 always show html-defined regions. wrong pos still not fixed
hertzhaft
parents: 848
diff changeset
522 console.debug("regions: handleUpdate");
848
77248c6d2a5f fix missing buttons
hertzhaft
parents: 835
diff changeset
523 var settings = data.settings;
77248c6d2a5f fix missing buttons
hertzhaft
parents: 835
diff changeset
524 fn.highlightButtons(data, 'regions' , settings.isRegionVisible);
850
47a6b93bde43 always show html-defined regions. wrong pos still not fixed
hertzhaft
parents: 848
diff changeset
525 renderRegions(data);
799
12f790cb30de started to adapt regions plugin to new plugin mechanism
hertzhaft
parents: 792
diff changeset
526 };
12f790cb30de started to adapt regions plugin to new plugin mechanism
hertzhaft
parents: 792
diff changeset
527
1048
4aa90cccb3e4 make plugins independent from buttons plugin
hertzhaft
parents: 1027
diff changeset
528 // additional buttons
4aa90cccb3e4 make plugins independent from buttons plugin
hertzhaft
parents: 1027
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529 var installButtons = function (data) {
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530 var settings = data.settings;
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531 var mode = settings.interactionMode;
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532 var buttonSettings = settings.buttonSettings[mode];
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533 // configure buttons through digilib "regionSet" option
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534 var buttonSet = settings.regionSet || regionSet;
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535 // set regionSet to [] or '' for no buttons (when showing regions only)
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536 if (buttonSet.length && buttonSet.length > 0) {
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537 buttonSettings.regionSet = buttonSet;
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538 buttonSettings.buttonSets.push('regionSet');
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539 }
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540 };
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541
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542 // plugin installation called by digilib on plugin object.
813
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543 var install = function(plugin) {
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544 digilib = plugin;
808
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545 console.debug('installing regions plugin. digilib:', digilib);
1048
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546 // import digilib functions
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547 $.extend(fn, digilib.fn);
799
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548 // import geometry classes
813
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549 geom = fn.geometry;
808
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550 // add defaults, actions, buttons
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551 $.extend(digilib.defaults, defaults);
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552 $.extend(digilib.actions, actions);
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553 $.extend(digilib.buttons, buttons);
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554 };
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555
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556 // plugin initialization
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557 var init = function (data) {
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558 console.debug('initialising regions plugin. data:', data);
835
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559 var $elem = data.$elem;
1027
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560 var settings = data.settings;
996
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561 var cssPrefix = data.settings.cssPrefix;
823
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562 // regions array
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563 data.regions = [];
1048
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564 // install event handlers
848
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565 var $data = $(data);
920
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566 $data.on('setup', handleSetup);
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567 $data.on('update', handleUpdate);
1048
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568 // install buttons
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569 if (settings.processUserRegions) {
823
8af71d9d830b fixed automatic region links and region content
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570 // add "rg" to digilibParamNames
848
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571 settings.digilibParamNames.push('rg');
1048
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572 if (digilib.plugins.buttons != null) {
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573 installButtons(data);
823
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574 }
813
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575 }
792
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576 };
799
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577
808
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578 // plugin object with name and install/init methods
799
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579 // shared objects filled by digilib on registration
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580 var pluginProperties = {
1048
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581 name : 'regions',
799
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582 install : install,
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583 init : init,
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584 buttons : {},
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585 actions : {},
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586 fn : {},
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587 plugins : {}
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588 };
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589
792
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590 if ($.fn.digilib == null) {
808
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591 $.error("jquery.digilib.regions must be loaded after jquery.digilib!");
792
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592 } else {
799
12f790cb30de started to adapt regions plugin to new plugin mechanism
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593 $.fn.digilib('plugin', pluginProperties);
792
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594 }
d742bd92b05a first step to a regions plugin
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595 })(jQuery);