[76] | 1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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| 2 | * full list of contributors). Published under the Clear BSD license. |
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| 3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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| 4 | * full text of the license. */ |
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| 5 | |
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| 6 | |
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| 7 | /** |
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| 8 | * Class: OpenLayers.Popup |
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| 9 | * A popup is a small div that can opened and closed on the map. |
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| 10 | * Typically opened in response to clicking on a marker. |
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| 11 | * See <OpenLayers.Marker>. Popup's don't require their own |
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| 12 | * layer and are added the the map using the <OpenLayers.Map.addPopup> |
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| 13 | * method. |
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| 14 | * |
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| 15 | * Example: |
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| 16 | * (code) |
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| 17 | * popup = new OpenLayers.Popup("chicken", |
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| 18 | * new OpenLayers.LonLat(5,40), |
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| 19 | * new OpenLayers.Size(200,200), |
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| 20 | * "example popup", |
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| 21 | * true); |
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| 22 | * |
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| 23 | * map.addPopup(popup); |
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| 24 | * (end) |
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| 25 | */ |
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| 26 | OpenLayers.Popup = OpenLayers.Class({ |
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| 27 | |
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| 28 | /** |
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| 29 | * Property: events |
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| 30 | * {<OpenLayers.Events>} custom event manager |
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| 31 | */ |
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| 32 | events: null, |
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| 33 | |
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| 34 | /** Property: id |
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| 35 | * {String} the unique identifier assigned to this popup. |
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| 36 | */ |
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| 37 | id: "", |
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| 38 | |
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| 39 | /** |
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| 40 | * Property: lonlat |
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| 41 | * {<OpenLayers.LonLat>} the position of this popup on the map |
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| 42 | */ |
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| 43 | lonlat: null, |
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| 44 | |
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| 45 | /** |
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| 46 | * Property: div |
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| 47 | * {DOMElement} the div that contains this popup. |
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| 48 | */ |
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| 49 | div: null, |
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| 50 | |
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| 51 | /** |
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| 52 | * Property: contentSize |
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| 53 | * {<OpenLayers.Size>} the width and height of the content. |
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| 54 | */ |
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| 55 | contentSize: null, |
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| 56 | |
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| 57 | /** |
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| 58 | * Property: size |
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| 59 | * {<OpenLayers.Size>} the width and height of the popup. |
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| 60 | */ |
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| 61 | size: null, |
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| 62 | |
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| 63 | /** |
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| 64 | * Property: contentHTML |
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| 65 | * {String} An HTML string for this popup to display. |
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| 66 | */ |
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| 67 | contentHTML: null, |
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| 68 | |
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| 69 | /** |
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| 70 | * Property: backgroundColor |
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| 71 | * {String} the background color used by the popup. |
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| 72 | */ |
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| 73 | backgroundColor: "", |
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| 74 | |
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| 75 | /** |
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| 76 | * Property: opacity |
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| 77 | * {float} the opacity of this popup (between 0.0 and 1.0) |
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| 78 | */ |
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| 79 | opacity: "", |
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| 80 | |
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| 81 | /** |
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| 82 | * Property: border |
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| 83 | * {String} the border size of the popup. (eg 2px) |
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| 84 | */ |
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| 85 | border: "", |
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| 86 | |
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| 87 | /** |
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| 88 | * Property: contentDiv |
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| 89 | * {DOMElement} a reference to the element that holds the content of |
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| 90 | * the div. |
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| 91 | */ |
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| 92 | contentDiv: null, |
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| 93 | |
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| 94 | /** |
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| 95 | * Property: groupDiv |
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| 96 | * {DOMElement} First and only child of 'div'. The group Div contains the |
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| 97 | * 'contentDiv' and the 'closeDiv'. |
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| 98 | */ |
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| 99 | groupDiv: null, |
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| 100 | |
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| 101 | /** |
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| 102 | * Property: closeDiv |
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| 103 | * {DOMElement} the optional closer image |
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| 104 | */ |
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| 105 | closeDiv: null, |
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| 106 | |
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| 107 | /** |
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| 108 | * APIProperty: autoSize |
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| 109 | * {Boolean} Resize the popup to auto-fit the contents. |
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| 110 | * Default is false. |
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| 111 | */ |
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| 112 | autoSize: false, |
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| 113 | |
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| 114 | /** |
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| 115 | * APIProperty: minSize |
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| 116 | * {<OpenLayers.Size>} Minimum size allowed for the popup's contents. |
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| 117 | */ |
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| 118 | minSize: null, |
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| 119 | |
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| 120 | /** |
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| 121 | * APIProperty: maxSize |
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| 122 | * {<OpenLayers.Size>} Maximum size allowed for the popup's contents. |
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| 123 | */ |
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| 124 | maxSize: null, |
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| 125 | |
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| 126 | /** |
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| 127 | * Property: displayClass |
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| 128 | * {String} The CSS class of the popup. |
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| 129 | */ |
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| 130 | displayClass: "olPopup", |
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| 131 | |
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| 132 | /** |
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| 133 | * Property: contentDisplayClass |
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| 134 | * {String} The CSS class of the popup content div. |
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| 135 | */ |
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| 136 | contentDisplayClass: "olPopupContent", |
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| 137 | |
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| 138 | /** |
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| 139 | * Property: padding |
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| 140 | * {int or <OpenLayers.Bounds>} An extra opportunity to specify internal |
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| 141 | * padding of the content div inside the popup. This was originally |
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| 142 | * confused with the css padding as specified in style.css's |
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| 143 | * 'olPopupContent' class. We would like to get rid of this altogether, |
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| 144 | * except that it does come in handy for the framed and anchoredbubble |
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| 145 | * popups, who need to maintain yet another barrier between their |
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| 146 | * content and the outer border of the popup itself. |
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| 147 | * |
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| 148 | * Note that in order to not break API, we must continue to support |
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| 149 | * this property being set as an integer. Really, though, we'd like to |
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| 150 | * have this specified as a Bounds object so that user can specify |
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| 151 | * distinct left, top, right, bottom paddings. With the 3.0 release |
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| 152 | * we can make this only a bounds. |
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| 153 | */ |
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| 154 | padding: 0, |
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| 155 | |
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| 156 | /** |
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| 157 | * Property: disableFirefoxOverflowHack |
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| 158 | * {Boolean} The hack for overflow in Firefox causes all elements |
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| 159 | * to be re-drawn, which causes Flash elements to be |
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| 160 | * re-initialized, which is troublesome. |
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| 161 | * With this property the hack can be disabled. |
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| 162 | */ |
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| 163 | disableFirefoxOverflowHack: false, |
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| 164 | |
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| 165 | /** |
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| 166 | * Method: fixPadding |
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| 167 | * To be removed in 3.0, this function merely helps us to deal with the |
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| 168 | * case where the user may have set an integer value for padding, |
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| 169 | * instead of an <OpenLayers.Bounds> object. |
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| 170 | */ |
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| 171 | fixPadding: function() { |
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| 172 | if (typeof this.padding == "number") { |
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| 173 | this.padding = new OpenLayers.Bounds( |
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| 174 | this.padding, this.padding, this.padding, this.padding |
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| 175 | ); |
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| 176 | } |
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| 177 | }, |
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| 178 | |
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| 179 | /** |
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| 180 | * APIProperty: panMapIfOutOfView |
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| 181 | * {Boolean} When drawn, pan map such that the entire popup is visible in |
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| 182 | * the current viewport (if necessary). |
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| 183 | * Default is false. |
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| 184 | */ |
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| 185 | panMapIfOutOfView: false, |
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| 186 | |
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| 187 | /** |
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| 188 | * APIProperty: keepInMap |
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| 189 | * {Boolean} If panMapIfOutOfView is false, and this property is true, |
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| 190 | * contrain the popup such that it always fits in the available map |
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| 191 | * space. By default, this is not set on the base class. If you are |
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| 192 | * creating popups that are near map edges and not allowing pannning, |
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| 193 | * and especially if you have a popup which has a |
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| 194 | * fixedRelativePosition, setting this to false may be a smart thing to |
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| 195 | * do. Subclasses may want to override this setting. |
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| 196 | * |
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| 197 | * Default is false. |
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| 198 | */ |
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| 199 | keepInMap: false, |
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| 200 | |
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| 201 | /** |
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| 202 | * APIProperty: closeOnMove |
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| 203 | * {Boolean} When map pans, close the popup. |
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| 204 | * Default is false. |
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| 205 | */ |
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| 206 | closeOnMove: false, |
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| 207 | |
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| 208 | /** |
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| 209 | * Property: map |
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| 210 | * {<OpenLayers.Map>} this gets set in Map.js when the popup is added to the map |
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| 211 | */ |
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| 212 | map: null, |
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| 213 | |
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| 214 | /** |
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| 215 | * Constructor: OpenLayers.Popup |
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| 216 | * Create a popup. |
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| 217 | * |
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| 218 | * Parameters: |
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| 219 | * id - {String} a unqiue identifier for this popup. If null is passed |
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| 220 | * an identifier will be automatically generated. |
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| 221 | * lonlat - {<OpenLayers.LonLat>} The position on the map the popup will |
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| 222 | * be shown. |
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| 223 | * contentSize - {<OpenLayers.Size>} The size of the content. |
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| 224 | * contentHTML - {String} An HTML string to display inside the |
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| 225 | * popup. |
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| 226 | * closeBox - {Boolean} Whether to display a close box inside |
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| 227 | * the popup. |
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| 228 | * closeBoxCallback - {Function} Function to be called on closeBox click. |
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| 229 | */ |
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| 230 | initialize:function(id, lonlat, contentSize, contentHTML, closeBox, closeBoxCallback) { |
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| 231 | if (id == null) { |
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| 232 | id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_"); |
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| 233 | } |
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| 234 | |
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| 235 | this.id = id; |
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| 236 | this.lonlat = lonlat; |
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| 237 | |
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| 238 | this.contentSize = (contentSize != null) ? contentSize |
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| 239 | : new OpenLayers.Size( |
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| 240 | OpenLayers.Popup.WIDTH, |
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| 241 | OpenLayers.Popup.HEIGHT); |
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| 242 | if (contentHTML != null) { |
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| 243 | this.contentHTML = contentHTML; |
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| 244 | } |
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| 245 | this.backgroundColor = OpenLayers.Popup.COLOR; |
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| 246 | this.opacity = OpenLayers.Popup.OPACITY; |
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| 247 | this.border = OpenLayers.Popup.BORDER; |
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| 248 | |
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| 249 | this.div = OpenLayers.Util.createDiv(this.id, null, null, |
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| 250 | null, null, null, "hidden"); |
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| 251 | this.div.className = this.displayClass; |
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| 252 | |
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| 253 | var groupDivId = this.id + "_GroupDiv"; |
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| 254 | this.groupDiv = OpenLayers.Util.createDiv(groupDivId, null, null, |
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| 255 | null, "relative", null, |
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| 256 | "hidden"); |
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| 257 | |
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| 258 | var id = this.div.id + "_contentDiv"; |
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| 259 | this.contentDiv = OpenLayers.Util.createDiv(id, null, this.contentSize.clone(), |
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| 260 | null, "relative"); |
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| 261 | this.contentDiv.className = this.contentDisplayClass; |
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| 262 | this.groupDiv.appendChild(this.contentDiv); |
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| 263 | this.div.appendChild(this.groupDiv); |
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| 264 | |
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| 265 | if (closeBox) { |
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| 266 | this.addCloseBox(closeBoxCallback); |
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| 267 | } |
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| 268 | |
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| 269 | this.registerEvents(); |
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| 270 | }, |
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| 271 | |
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| 272 | /** |
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| 273 | * Method: destroy |
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| 274 | * nullify references to prevent circular references and memory leaks |
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| 275 | */ |
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| 276 | destroy: function() { |
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| 277 | |
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| 278 | this.id = null; |
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| 279 | this.lonlat = null; |
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| 280 | this.size = null; |
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| 281 | this.contentHTML = null; |
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| 282 | |
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| 283 | this.backgroundColor = null; |
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| 284 | this.opacity = null; |
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| 285 | this.border = null; |
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| 286 | |
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| 287 | if (this.closeOnMove && this.map) { |
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| 288 | this.map.events.unregister("movestart", this, this.hide); |
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| 289 | } |
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| 290 | |
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| 291 | this.events.destroy(); |
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| 292 | this.events = null; |
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| 293 | |
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| 294 | if (this.closeDiv) { |
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| 295 | OpenLayers.Event.stopObservingElement(this.closeDiv); |
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| 296 | this.groupDiv.removeChild(this.closeDiv); |
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| 297 | } |
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| 298 | this.closeDiv = null; |
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| 299 | |
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| 300 | this.div.removeChild(this.groupDiv); |
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| 301 | this.groupDiv = null; |
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| 302 | |
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| 303 | if (this.map != null) { |
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| 304 | this.map.removePopup(this); |
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| 305 | } |
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| 306 | this.map = null; |
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| 307 | this.div = null; |
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| 308 | |
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| 309 | this.autoSize = null; |
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| 310 | this.minSize = null; |
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| 311 | this.maxSize = null; |
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| 312 | this.padding = null; |
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| 313 | this.panMapIfOutOfView = null; |
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| 314 | }, |
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| 315 | |
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| 316 | /** |
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| 317 | * Method: draw |
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| 318 | * Constructs the elements that make up the popup. |
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| 319 | * |
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| 320 | * Parameters: |
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| 321 | * px - {<OpenLayers.Pixel>} the position the popup in pixels. |
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| 322 | * |
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| 323 | * Returns: |
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| 324 | * {DOMElement} Reference to a div that contains the drawn popup |
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| 325 | */ |
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| 326 | draw: function(px) { |
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| 327 | if (px == null) { |
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| 328 | if ((this.lonlat != null) && (this.map != null)) { |
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| 329 | px = this.map.getLayerPxFromLonLat(this.lonlat); |
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| 330 | } |
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| 331 | } |
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| 332 | |
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| 333 | // this assumes that this.map already exists, which is okay because |
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| 334 | // this.draw is only called once the popup has been added to the map. |
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| 335 | if (this.closeOnMove) { |
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| 336 | this.map.events.register("movestart", this, this.hide); |
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| 337 | } |
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| 338 | |
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| 339 | //listen to movestart, moveend to disable overflow (FF bug) |
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| 340 | if (!this.disableFirefoxOverflowHack && OpenLayers.Util.getBrowserName() == 'firefox') { |
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| 341 | this.map.events.register("movestart", this, function() { |
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| 342 | var style = document.defaultView.getComputedStyle( |
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| 343 | this.contentDiv, null |
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| 344 | ); |
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| 345 | var currentOverflow = style.getPropertyValue("overflow"); |
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| 346 | if (currentOverflow != "hidden") { |
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| 347 | this.contentDiv._oldOverflow = currentOverflow; |
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| 348 | this.contentDiv.style.overflow = "hidden"; |
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| 349 | } |
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| 350 | }); |
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| 351 | this.map.events.register("moveend", this, function() { |
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| 352 | var oldOverflow = this.contentDiv._oldOverflow; |
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| 353 | if (oldOverflow) { |
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| 354 | this.contentDiv.style.overflow = oldOverflow; |
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| 355 | this.contentDiv._oldOverflow = null; |
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| 356 | } |
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| 357 | }); |
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| 358 | } |
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| 359 | |
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| 360 | this.moveTo(px); |
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| 361 | if (!this.autoSize && !this.size) { |
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| 362 | this.setSize(this.contentSize); |
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| 363 | } |
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| 364 | this.setBackgroundColor(); |
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| 365 | this.setOpacity(); |
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| 366 | this.setBorder(); |
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| 367 | this.setContentHTML(); |
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| 368 | |
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| 369 | if (this.panMapIfOutOfView) { |
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| 370 | this.panIntoView(); |
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| 371 | } |
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| 372 | |
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| 373 | return this.div; |
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| 374 | }, |
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| 375 | |
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| 376 | /** |
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| 377 | * Method: updatePosition |
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| 378 | * if the popup has a lonlat and its map members set, |
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| 379 | * then have it move itself to its proper position |
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| 380 | */ |
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| 381 | updatePosition: function() { |
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| 382 | if ((this.lonlat) && (this.map)) { |
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| 383 | var px = this.map.getLayerPxFromLonLat(this.lonlat); |
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| 384 | if (px) { |
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| 385 | this.moveTo(px); |
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| 386 | } |
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| 387 | } |
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| 388 | }, |
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| 389 | |
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| 390 | /** |
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| 391 | * Method: moveTo |
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| 392 | * |
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| 393 | * Parameters: |
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| 394 | * px - {<OpenLayers.Pixel>} the top and left position of the popup div. |
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| 395 | */ |
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| 396 | moveTo: function(px) { |
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| 397 | if ((px != null) && (this.div != null)) { |
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| 398 | this.div.style.left = px.x + "px"; |
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| 399 | this.div.style.top = px.y + "px"; |
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| 400 | } |
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| 401 | }, |
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| 402 | |
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| 403 | /** |
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| 404 | * Method: visible |
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| 405 | * |
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| 406 | * Returns: |
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| 407 | * {Boolean} Boolean indicating whether or not the popup is visible |
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| 408 | */ |
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| 409 | visible: function() { |
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| 410 | return OpenLayers.Element.visible(this.div); |
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| 411 | }, |
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| 412 | |
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| 413 | /** |
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| 414 | * Method: toggle |
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| 415 | * Toggles visibility of the popup. |
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| 416 | */ |
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| 417 | toggle: function() { |
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| 418 | if (this.visible()) { |
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| 419 | this.hide(); |
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| 420 | } else { |
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| 421 | this.show(); |
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| 422 | } |
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| 423 | }, |
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| 424 | |
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| 425 | /** |
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| 426 | * Method: show |
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| 427 | * Makes the popup visible. |
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| 428 | */ |
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| 429 | show: function() { |
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| 430 | OpenLayers.Element.show(this.div); |
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| 431 | |
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| 432 | if (this.panMapIfOutOfView) { |
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| 433 | this.panIntoView(); |
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| 434 | } |
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| 435 | }, |
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| 436 | |
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| 437 | /** |
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| 438 | * Method: hide |
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| 439 | * Makes the popup invisible. |
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| 440 | */ |
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| 441 | hide: function() { |
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| 442 | OpenLayers.Element.hide(this.div); |
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| 443 | }, |
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| 444 | |
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| 445 | /** |
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| 446 | * Method: setSize |
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| 447 | * Used to adjust the size of the popup. |
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| 448 | * |
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| 449 | * Parameters: |
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| 450 | * contentSize - {<OpenLayers.Size>} the new size for the popup's |
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| 451 | * contents div (in pixels). |
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| 452 | */ |
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| 453 | setSize:function(contentSize) { |
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| 454 | this.size = contentSize.clone(); |
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| 455 | |
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| 456 | // if our contentDiv has a css 'padding' set on it by a stylesheet, we |
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| 457 | // must add that to the desired "size". |
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| 458 | var contentDivPadding = this.getContentDivPadding(); |
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| 459 | var wPadding = contentDivPadding.left + contentDivPadding.right; |
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| 460 | var hPadding = contentDivPadding.top + contentDivPadding.bottom; |
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| 461 | |
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| 462 | // take into account the popup's 'padding' property |
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| 463 | this.fixPadding(); |
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| 464 | wPadding += this.padding.left + this.padding.right; |
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| 465 | hPadding += this.padding.top + this.padding.bottom; |
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| 466 | |
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| 467 | // make extra space for the close div |
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| 468 | if (this.closeDiv) { |
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| 469 | var closeDivWidth = parseInt(this.closeDiv.style.width); |
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| 470 | wPadding += closeDivWidth + contentDivPadding.right; |
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| 471 | } |
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| 472 | |
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| 473 | //increase size of the main popup div to take into account the |
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| 474 | // users's desired padding and close div. |
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| 475 | this.size.w += wPadding; |
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| 476 | this.size.h += hPadding; |
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| 477 | |
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| 478 | //now if our browser is IE, we need to actually make the contents |
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| 479 | // div itself bigger to take its own padding into effect. this makes |
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| 480 | // me want to shoot someone, but so it goes. |
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| 481 | if (OpenLayers.Util.getBrowserName() == "msie") { |
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| 482 | this.contentSize.w += |
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| 483 | contentDivPadding.left + contentDivPadding.right; |
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| 484 | this.contentSize.h += |
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| 485 | contentDivPadding.bottom + contentDivPadding.top; |
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| 486 | } |
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| 487 | |
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| 488 | if (this.div != null) { |
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| 489 | this.div.style.width = this.size.w + "px"; |
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| 490 | this.div.style.height = this.size.h + "px"; |
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| 491 | } |
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| 492 | if (this.contentDiv != null){ |
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| 493 | this.contentDiv.style.width = contentSize.w + "px"; |
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| 494 | this.contentDiv.style.height = contentSize.h + "px"; |
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| 495 | } |
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| 496 | }, |
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| 497 | |
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| 498 | /** |
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| 499 | * APIMethod: updateSize |
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| 500 | * Auto size the popup so that it precisely fits its contents (as |
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| 501 | * determined by this.contentDiv.innerHTML). Popup size will, of |
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| 502 | * course, be limited by the available space on the current map |
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| 503 | */ |
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| 504 | updateSize: function() { |
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| 505 | |
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| 506 | // determine actual render dimensions of the contents by putting its |
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| 507 | // contents into a fake contentDiv (for the CSS) and then measuring it |
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| 508 | var preparedHTML = "<div class='" + this.contentDisplayClass+ "'>" + |
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| 509 | this.contentDiv.innerHTML + |
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| 510 | "</div>"; |
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| 511 | |
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| 512 | var containerElement = (this.map) ? this.map.layerContainerDiv |
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| 513 | : document.body; |
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| 514 | var realSize = OpenLayers.Util.getRenderedDimensions( |
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| 515 | preparedHTML, null, { |
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| 516 | displayClass: this.displayClass, |
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| 517 | containerElement: containerElement |
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| 518 | } |
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| 519 | ); |
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| 520 | |
---|
| 521 | // is the "real" size of the div is safe to display in our map? |
---|
| 522 | var safeSize = this.getSafeContentSize(realSize); |
---|
| 523 | |
---|
| 524 | var newSize = null; |
---|
| 525 | if (safeSize.equals(realSize)) { |
---|
| 526 | //real size of content is small enough to fit on the map, |
---|
| 527 | // so we use real size. |
---|
| 528 | newSize = realSize; |
---|
| 529 | |
---|
| 530 | } else { |
---|
| 531 | |
---|
| 532 | //make a new OL.Size object with the clipped dimensions |
---|
| 533 | // set or null if not clipped. |
---|
| 534 | var fixedSize = new OpenLayers.Size(); |
---|
| 535 | fixedSize.w = (safeSize.w < realSize.w) ? safeSize.w : null; |
---|
| 536 | fixedSize.h = (safeSize.h < realSize.h) ? safeSize.h : null; |
---|
| 537 | |
---|
| 538 | if (fixedSize.w && fixedSize.h) { |
---|
| 539 | //content is too big in both directions, so we will use |
---|
| 540 | // max popup size (safeSize), knowing well that it will |
---|
| 541 | // overflow both ways. |
---|
| 542 | newSize = safeSize; |
---|
| 543 | } else { |
---|
| 544 | //content is clipped in only one direction, so we need to |
---|
| 545 | // run getRenderedDimensions() again with a fixed dimension |
---|
| 546 | var clippedSize = OpenLayers.Util.getRenderedDimensions( |
---|
| 547 | preparedHTML, fixedSize, { |
---|
| 548 | displayClass: this.contentDisplayClass, |
---|
| 549 | containerElement: containerElement |
---|
| 550 | } |
---|
| 551 | ); |
---|
| 552 | |
---|
| 553 | //if the clipped size is still the same as the safeSize, |
---|
| 554 | // that means that our content must be fixed in the |
---|
| 555 | // offending direction. If overflow is 'auto', this means |
---|
| 556 | // we are going to have a scrollbar for sure, so we must |
---|
| 557 | // adjust for that. |
---|
| 558 | // |
---|
| 559 | var currentOverflow = OpenLayers.Element.getStyle( |
---|
| 560 | this.contentDiv, "overflow" |
---|
| 561 | ); |
---|
| 562 | if ( (currentOverflow != "hidden") && |
---|
| 563 | (clippedSize.equals(safeSize)) ) { |
---|
| 564 | var scrollBar = OpenLayers.Util.getScrollbarWidth(); |
---|
| 565 | if (fixedSize.w) { |
---|
| 566 | clippedSize.h += scrollBar; |
---|
| 567 | } else { |
---|
| 568 | clippedSize.w += scrollBar; |
---|
| 569 | } |
---|
| 570 | } |
---|
| 571 | |
---|
| 572 | newSize = this.getSafeContentSize(clippedSize); |
---|
| 573 | } |
---|
| 574 | } |
---|
| 575 | this.setSize(newSize); |
---|
| 576 | }, |
---|
| 577 | |
---|
| 578 | /** |
---|
| 579 | * Method: setBackgroundColor |
---|
| 580 | * Sets the background color of the popup. |
---|
| 581 | * |
---|
| 582 | * Parameters: |
---|
| 583 | * color - {String} the background color. eg "#FFBBBB" |
---|
| 584 | */ |
---|
| 585 | setBackgroundColor:function(color) { |
---|
| 586 | if (color != undefined) { |
---|
| 587 | this.backgroundColor = color; |
---|
| 588 | } |
---|
| 589 | |
---|
| 590 | if (this.div != null) { |
---|
| 591 | this.div.style.backgroundColor = this.backgroundColor; |
---|
| 592 | } |
---|
| 593 | }, |
---|
| 594 | |
---|
| 595 | /** |
---|
| 596 | * Method: setOpacity |
---|
| 597 | * Sets the opacity of the popup. |
---|
| 598 | * |
---|
| 599 | * Parameters: |
---|
| 600 | * opacity - {float} A value between 0.0 (transparent) and 1.0 (solid). |
---|
| 601 | */ |
---|
| 602 | setOpacity:function(opacity) { |
---|
| 603 | if (opacity != undefined) { |
---|
| 604 | this.opacity = opacity; |
---|
| 605 | } |
---|
| 606 | |
---|
| 607 | if (this.div != null) { |
---|
| 608 | // for Mozilla and Safari |
---|
| 609 | this.div.style.opacity = this.opacity; |
---|
| 610 | |
---|
| 611 | // for IE |
---|
| 612 | this.div.style.filter = 'alpha(opacity=' + this.opacity*100 + ')'; |
---|
| 613 | } |
---|
| 614 | }, |
---|
| 615 | |
---|
| 616 | /** |
---|
| 617 | * Method: setBorder |
---|
| 618 | * Sets the border style of the popup. |
---|
| 619 | * |
---|
| 620 | * Parameters: |
---|
| 621 | * border - {String} The border style value. eg 2px |
---|
| 622 | */ |
---|
| 623 | setBorder:function(border) { |
---|
| 624 | if (border != undefined) { |
---|
| 625 | this.border = border; |
---|
| 626 | } |
---|
| 627 | |
---|
| 628 | if (this.div != null) { |
---|
| 629 | this.div.style.border = this.border; |
---|
| 630 | } |
---|
| 631 | }, |
---|
| 632 | |
---|
| 633 | /** |
---|
| 634 | * Method: setContentHTML |
---|
| 635 | * Allows the user to set the HTML content of the popup. |
---|
| 636 | * |
---|
| 637 | * Parameters: |
---|
| 638 | * contentHTML - {String} HTML for the div. |
---|
| 639 | */ |
---|
| 640 | setContentHTML:function(contentHTML) { |
---|
| 641 | |
---|
| 642 | if (contentHTML != null) { |
---|
| 643 | this.contentHTML = contentHTML; |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | if ((this.contentDiv != null) && |
---|
| 647 | (this.contentHTML != null) && |
---|
| 648 | (this.contentHTML != this.contentDiv.innerHTML)) { |
---|
| 649 | |
---|
| 650 | this.contentDiv.innerHTML = this.contentHTML; |
---|
| 651 | |
---|
| 652 | if (this.autoSize) { |
---|
| 653 | |
---|
| 654 | //if popup has images, listen for when they finish |
---|
| 655 | // loading and resize accordingly |
---|
| 656 | this.registerImageListeners(); |
---|
| 657 | |
---|
| 658 | //auto size the popup to its current contents |
---|
| 659 | this.updateSize(); |
---|
| 660 | } |
---|
| 661 | } |
---|
| 662 | |
---|
| 663 | }, |
---|
| 664 | |
---|
| 665 | /** |
---|
| 666 | * Method: registerImageListeners |
---|
| 667 | * Called when an image contained by the popup loaded. this function |
---|
| 668 | * updates the popup size, then unregisters the image load listener. |
---|
| 669 | */ |
---|
| 670 | registerImageListeners: function() { |
---|
| 671 | |
---|
| 672 | // As the images load, this function will call updateSize() to |
---|
| 673 | // resize the popup to fit the content div (which presumably is now |
---|
| 674 | // bigger than when the image was not loaded). |
---|
| 675 | // |
---|
| 676 | // If the 'panMapIfOutOfView' property is set, we will pan the newly |
---|
| 677 | // resized popup back into view. |
---|
| 678 | // |
---|
| 679 | // Note that this function, when called, will have 'popup' and |
---|
| 680 | // 'img' properties in the context. |
---|
| 681 | // |
---|
| 682 | var onImgLoad = function() { |
---|
| 683 | |
---|
| 684 | this.popup.updateSize(); |
---|
| 685 | |
---|
| 686 | if ( this.popup.visible() && this.popup.panMapIfOutOfView ) { |
---|
| 687 | this.popup.panIntoView(); |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | OpenLayers.Event.stopObserving( |
---|
| 691 | this.img, "load", this.img._onImageLoad |
---|
| 692 | ); |
---|
| 693 | |
---|
| 694 | }; |
---|
| 695 | |
---|
| 696 | //cycle through the images and if their size is 0x0, that means that |
---|
| 697 | // they haven't been loaded yet, so we attach the listener, which |
---|
| 698 | // will fire when the images finish loading and will resize the |
---|
| 699 | // popup accordingly to its new size. |
---|
| 700 | var images = this.contentDiv.getElementsByTagName("img"); |
---|
| 701 | for (var i = 0, len = images.length; i < len; i++) { |
---|
| 702 | var img = images[i]; |
---|
| 703 | if (img.width == 0 || img.height == 0) { |
---|
| 704 | |
---|
| 705 | var context = { |
---|
| 706 | 'popup': this, |
---|
| 707 | 'img': img |
---|
| 708 | }; |
---|
| 709 | |
---|
| 710 | //expando this function to the image itself before registering |
---|
| 711 | // it. This way we can easily and properly unregister it. |
---|
| 712 | img._onImgLoad = OpenLayers.Function.bind(onImgLoad, context); |
---|
| 713 | |
---|
| 714 | OpenLayers.Event.observe(img, 'load', img._onImgLoad); |
---|
| 715 | } |
---|
| 716 | } |
---|
| 717 | }, |
---|
| 718 | |
---|
| 719 | /** |
---|
| 720 | * APIMethod: getSafeContentSize |
---|
| 721 | * |
---|
| 722 | * Parameters: |
---|
| 723 | * size - {<OpenLayers.Size>} Desired size to make the popup. |
---|
| 724 | * |
---|
| 725 | * Returns: |
---|
| 726 | * {<OpenLayers.Size>} A size to make the popup which is neither smaller |
---|
| 727 | * than the specified minimum size, nor bigger than the maximum |
---|
| 728 | * size (which is calculated relative to the size of the viewport). |
---|
| 729 | */ |
---|
| 730 | getSafeContentSize: function(size) { |
---|
| 731 | |
---|
| 732 | var safeContentSize = size.clone(); |
---|
| 733 | |
---|
| 734 | // if our contentDiv has a css 'padding' set on it by a stylesheet, we |
---|
| 735 | // must add that to the desired "size". |
---|
| 736 | var contentDivPadding = this.getContentDivPadding(); |
---|
| 737 | var wPadding = contentDivPadding.left + contentDivPadding.right; |
---|
| 738 | var hPadding = contentDivPadding.top + contentDivPadding.bottom; |
---|
| 739 | |
---|
| 740 | // take into account the popup's 'padding' property |
---|
| 741 | this.fixPadding(); |
---|
| 742 | wPadding += this.padding.left + this.padding.right; |
---|
| 743 | hPadding += this.padding.top + this.padding.bottom; |
---|
| 744 | |
---|
| 745 | if (this.closeDiv) { |
---|
| 746 | var closeDivWidth = parseInt(this.closeDiv.style.width); |
---|
| 747 | wPadding += closeDivWidth + contentDivPadding.right; |
---|
| 748 | } |
---|
| 749 | |
---|
| 750 | // prevent the popup from being smaller than a specified minimal size |
---|
| 751 | if (this.minSize) { |
---|
| 752 | safeContentSize.w = Math.max(safeContentSize.w, |
---|
| 753 | (this.minSize.w - wPadding)); |
---|
| 754 | safeContentSize.h = Math.max(safeContentSize.h, |
---|
| 755 | (this.minSize.h - hPadding)); |
---|
| 756 | } |
---|
| 757 | |
---|
| 758 | // prevent the popup from being bigger than a specified maximum size |
---|
| 759 | if (this.maxSize) { |
---|
| 760 | safeContentSize.w = Math.min(safeContentSize.w, |
---|
| 761 | (this.maxSize.w - wPadding)); |
---|
| 762 | safeContentSize.h = Math.min(safeContentSize.h, |
---|
| 763 | (this.maxSize.h - hPadding)); |
---|
| 764 | } |
---|
| 765 | |
---|
| 766 | //make sure the desired size to set doesn't result in a popup that |
---|
| 767 | // is bigger than the map's viewport. |
---|
| 768 | // |
---|
| 769 | if (this.map && this.map.size) { |
---|
| 770 | |
---|
| 771 | var extraX = 0, extraY = 0; |
---|
| 772 | if (this.keepInMap && !this.panMapIfOutOfView) { |
---|
| 773 | var px = this.map.getPixelFromLonLat(this.lonlat); |
---|
| 774 | switch (this.relativePosition) { |
---|
| 775 | case "tr": |
---|
| 776 | extraX = px.x; |
---|
| 777 | extraY = this.map.size.h - px.y; |
---|
| 778 | break; |
---|
| 779 | case "tl": |
---|
| 780 | extraX = this.map.size.w - px.x; |
---|
| 781 | extraY = this.map.size.h - px.y; |
---|
| 782 | break; |
---|
| 783 | case "bl": |
---|
| 784 | extraX = this.map.size.w - px.x; |
---|
| 785 | extraY = px.y; |
---|
| 786 | break; |
---|
| 787 | case "br": |
---|
| 788 | extraX = px.x; |
---|
| 789 | extraY = px.y; |
---|
| 790 | break; |
---|
| 791 | default: |
---|
| 792 | extraX = px.x; |
---|
| 793 | extraY = this.map.size.h - px.y; |
---|
| 794 | break; |
---|
| 795 | } |
---|
| 796 | } |
---|
| 797 | |
---|
| 798 | var maxY = this.map.size.h - |
---|
| 799 | this.map.paddingForPopups.top - |
---|
| 800 | this.map.paddingForPopups.bottom - |
---|
| 801 | hPadding - extraY; |
---|
| 802 | |
---|
| 803 | var maxX = this.map.size.w - |
---|
| 804 | this.map.paddingForPopups.left - |
---|
| 805 | this.map.paddingForPopups.right - |
---|
| 806 | wPadding - extraX; |
---|
| 807 | |
---|
| 808 | safeContentSize.w = Math.min(safeContentSize.w, maxX); |
---|
| 809 | safeContentSize.h = Math.min(safeContentSize.h, maxY); |
---|
| 810 | } |
---|
| 811 | |
---|
| 812 | return safeContentSize; |
---|
| 813 | }, |
---|
| 814 | |
---|
| 815 | /** |
---|
| 816 | * Method: getContentDivPadding |
---|
| 817 | * Glorious, oh glorious hack in order to determine the css 'padding' of |
---|
| 818 | * the contentDiv. IE/Opera return null here unless we actually add the |
---|
| 819 | * popup's main 'div' element (which contains contentDiv) to the DOM. |
---|
| 820 | * So we make it invisible and then add it to the document temporarily. |
---|
| 821 | * |
---|
| 822 | * Once we've taken the padding readings we need, we then remove it |
---|
| 823 | * from the DOM (it will actually get added to the DOM in |
---|
| 824 | * Map.js's addPopup) |
---|
| 825 | * |
---|
| 826 | * Returns: |
---|
| 827 | * {<OpenLayers.Bounds>} |
---|
| 828 | */ |
---|
| 829 | getContentDivPadding: function() { |
---|
| 830 | |
---|
| 831 | //use cached value if we have it |
---|
| 832 | var contentDivPadding = this._contentDivPadding; |
---|
| 833 | if (!contentDivPadding) { |
---|
| 834 | |
---|
| 835 | if (this.div.parentNode == null) { |
---|
| 836 | //make the div invisible and add it to the page |
---|
| 837 | this.div.style.display = "none"; |
---|
| 838 | document.body.appendChild(this.div); |
---|
| 839 | } |
---|
| 840 | |
---|
| 841 | //read the padding settings from css, put them in an OL.Bounds |
---|
| 842 | contentDivPadding = new OpenLayers.Bounds( |
---|
| 843 | OpenLayers.Element.getStyle(this.contentDiv, "padding-left"), |
---|
| 844 | OpenLayers.Element.getStyle(this.contentDiv, "padding-bottom"), |
---|
| 845 | OpenLayers.Element.getStyle(this.contentDiv, "padding-right"), |
---|
| 846 | OpenLayers.Element.getStyle(this.contentDiv, "padding-top") |
---|
| 847 | ); |
---|
| 848 | |
---|
| 849 | //cache the value |
---|
| 850 | this._contentDivPadding = contentDivPadding; |
---|
| 851 | |
---|
| 852 | if (this.div.parentNode == document.body) { |
---|
| 853 | //remove the div from the page and make it visible again |
---|
| 854 | document.body.removeChild(this.div); |
---|
| 855 | this.div.style.display = ""; |
---|
| 856 | } |
---|
| 857 | } |
---|
| 858 | return contentDivPadding; |
---|
| 859 | }, |
---|
| 860 | |
---|
| 861 | /** |
---|
| 862 | * Method: addCloseBox |
---|
| 863 | * |
---|
| 864 | * Parameters: |
---|
| 865 | * callback - {Function} The callback to be called when the close button |
---|
| 866 | * is clicked. |
---|
| 867 | */ |
---|
| 868 | addCloseBox: function(callback) { |
---|
| 869 | |
---|
| 870 | this.closeDiv = OpenLayers.Util.createDiv( |
---|
| 871 | this.id + "_close", null, new OpenLayers.Size(17, 17) |
---|
| 872 | ); |
---|
| 873 | this.closeDiv.className = "olPopupCloseBox"; |
---|
| 874 | |
---|
| 875 | // use the content div's css padding to determine if we should |
---|
| 876 | // padd the close div |
---|
| 877 | var contentDivPadding = this.getContentDivPadding(); |
---|
| 878 | |
---|
| 879 | this.closeDiv.style.right = contentDivPadding.right + "px"; |
---|
| 880 | this.closeDiv.style.top = contentDivPadding.top + "px"; |
---|
| 881 | this.groupDiv.appendChild(this.closeDiv); |
---|
| 882 | |
---|
| 883 | var closePopup = callback || function(e) { |
---|
| 884 | this.hide(); |
---|
| 885 | OpenLayers.Event.stop(e); |
---|
| 886 | }; |
---|
| 887 | OpenLayers.Event.observe(this.closeDiv, "click", |
---|
| 888 | OpenLayers.Function.bindAsEventListener(closePopup, this)); |
---|
| 889 | }, |
---|
| 890 | |
---|
| 891 | /** |
---|
| 892 | * Method: panIntoView |
---|
| 893 | * Pans the map such that the popup is totaly viewable (if necessary) |
---|
| 894 | */ |
---|
| 895 | panIntoView: function() { |
---|
| 896 | |
---|
| 897 | var mapSize = this.map.getSize(); |
---|
| 898 | |
---|
| 899 | //start with the top left corner of the popup, in px, |
---|
| 900 | // relative to the viewport |
---|
| 901 | var origTL = this.map.getViewPortPxFromLayerPx( new OpenLayers.Pixel( |
---|
| 902 | parseInt(this.div.style.left), |
---|
| 903 | parseInt(this.div.style.top) |
---|
| 904 | )); |
---|
| 905 | var newTL = origTL.clone(); |
---|
| 906 | |
---|
| 907 | //new left (compare to margins, using this.size to calculate right) |
---|
| 908 | if (origTL.x < this.map.paddingForPopups.left) { |
---|
| 909 | newTL.x = this.map.paddingForPopups.left; |
---|
| 910 | } else |
---|
| 911 | if ( (origTL.x + this.size.w) > (mapSize.w - this.map.paddingForPopups.right)) { |
---|
| 912 | newTL.x = mapSize.w - this.map.paddingForPopups.right - this.size.w; |
---|
| 913 | } |
---|
| 914 | |
---|
| 915 | //new top (compare to margins, using this.size to calculate bottom) |
---|
| 916 | if (origTL.y < this.map.paddingForPopups.top) { |
---|
| 917 | newTL.y = this.map.paddingForPopups.top; |
---|
| 918 | } else |
---|
| 919 | if ( (origTL.y + this.size.h) > (mapSize.h - this.map.paddingForPopups.bottom)) { |
---|
| 920 | newTL.y = mapSize.h - this.map.paddingForPopups.bottom - this.size.h; |
---|
| 921 | } |
---|
| 922 | |
---|
| 923 | var dx = origTL.x - newTL.x; |
---|
| 924 | var dy = origTL.y - newTL.y; |
---|
| 925 | |
---|
| 926 | this.map.pan(dx, dy); |
---|
| 927 | }, |
---|
| 928 | |
---|
| 929 | /** |
---|
| 930 | * Method: registerEvents |
---|
| 931 | * Registers events on the popup. |
---|
| 932 | * |
---|
| 933 | * Do this in a separate function so that subclasses can |
---|
| 934 | * choose to override it if they wish to deal differently |
---|
| 935 | * with mouse events |
---|
| 936 | * |
---|
| 937 | * Note in the following handler functions that some special |
---|
| 938 | * care is needed to deal correctly with mousing and popups. |
---|
| 939 | * |
---|
| 940 | * Because the user might select the zoom-rectangle option and |
---|
| 941 | * then drag it over a popup, we need a safe way to allow the |
---|
| 942 | * mousemove and mouseup events to pass through the popup when |
---|
| 943 | * they are initiated from outside. |
---|
| 944 | * |
---|
| 945 | * Otherwise, we want to essentially kill the event propagation |
---|
| 946 | * for all other events, though we have to do so carefully, |
---|
| 947 | * without disabling basic html functionality, like clicking on |
---|
| 948 | * hyperlinks or drag-selecting text. |
---|
| 949 | */ |
---|
| 950 | registerEvents:function() { |
---|
| 951 | this.events = new OpenLayers.Events(this, this.div, null, true); |
---|
| 952 | |
---|
| 953 | this.events.on({ |
---|
| 954 | "mousedown": this.onmousedown, |
---|
| 955 | "mousemove": this.onmousemove, |
---|
| 956 | "mouseup": this.onmouseup, |
---|
| 957 | "click": this.onclick, |
---|
| 958 | "mouseout": this.onmouseout, |
---|
| 959 | "dblclick": this.ondblclick, |
---|
| 960 | scope: this |
---|
| 961 | }); |
---|
| 962 | |
---|
| 963 | }, |
---|
| 964 | |
---|
| 965 | /** |
---|
| 966 | * Method: onmousedown |
---|
| 967 | * When mouse goes down within the popup, make a note of |
---|
| 968 | * it locally, and then do not propagate the mousedown |
---|
| 969 | * (but do so safely so that user can select text inside) |
---|
| 970 | * |
---|
| 971 | * Parameters: |
---|
| 972 | * evt - {Event} |
---|
| 973 | */ |
---|
| 974 | onmousedown: function (evt) { |
---|
| 975 | this.mousedown = true; |
---|
| 976 | OpenLayers.Event.stop(evt, true); |
---|
| 977 | }, |
---|
| 978 | |
---|
| 979 | /** |
---|
| 980 | * Method: onmousemove |
---|
| 981 | * If the drag was started within the popup, then |
---|
| 982 | * do not propagate the mousemove (but do so safely |
---|
| 983 | * so that user can select text inside) |
---|
| 984 | * |
---|
| 985 | * Parameters: |
---|
| 986 | * evt - {Event} |
---|
| 987 | */ |
---|
| 988 | onmousemove: function (evt) { |
---|
| 989 | if (this.mousedown) { |
---|
| 990 | OpenLayers.Event.stop(evt, true); |
---|
| 991 | } |
---|
| 992 | }, |
---|
| 993 | |
---|
| 994 | /** |
---|
| 995 | * Method: onmouseup |
---|
| 996 | * When mouse comes up within the popup, after going down |
---|
| 997 | * in it, reset the flag, and then (once again) do not |
---|
| 998 | * propagate the event, but do so safely so that user can |
---|
| 999 | * select text inside |
---|
| 1000 | * |
---|
| 1001 | * Parameters: |
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| 1002 | * evt - {Event} |
---|
| 1003 | */ |
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| 1004 | onmouseup: function (evt) { |
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| 1005 | if (this.mousedown) { |
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| 1006 | this.mousedown = false; |
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| 1007 | OpenLayers.Event.stop(evt, true); |
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| 1008 | } |
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| 1009 | }, |
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| 1010 | |
---|
| 1011 | /** |
---|
| 1012 | * Method: onclick |
---|
| 1013 | * Ignore clicks, but allowing default browser handling |
---|
| 1014 | * |
---|
| 1015 | * Parameters: |
---|
| 1016 | * evt - {Event} |
---|
| 1017 | */ |
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| 1018 | onclick: function (evt) { |
---|
| 1019 | OpenLayers.Event.stop(evt, true); |
---|
| 1020 | }, |
---|
| 1021 | |
---|
| 1022 | /** |
---|
| 1023 | * Method: onmouseout |
---|
| 1024 | * When mouse goes out of the popup set the flag to false so that |
---|
| 1025 | * if they let go and then drag back in, we won't be confused. |
---|
| 1026 | * |
---|
| 1027 | * Parameters: |
---|
| 1028 | * evt - {Event} |
---|
| 1029 | */ |
---|
| 1030 | onmouseout: function (evt) { |
---|
| 1031 | this.mousedown = false; |
---|
| 1032 | }, |
---|
| 1033 | |
---|
| 1034 | /** |
---|
| 1035 | * Method: ondblclick |
---|
| 1036 | * Ignore double-clicks, but allowing default browser handling |
---|
| 1037 | * |
---|
| 1038 | * Parameters: |
---|
| 1039 | * evt - {Event} |
---|
| 1040 | */ |
---|
| 1041 | ondblclick: function (evt) { |
---|
| 1042 | OpenLayers.Event.stop(evt, true); |
---|
| 1043 | }, |
---|
| 1044 | |
---|
| 1045 | CLASS_NAME: "OpenLayers.Popup" |
---|
| 1046 | }); |
---|
| 1047 | |
---|
| 1048 | OpenLayers.Popup.WIDTH = 200; |
---|
| 1049 | OpenLayers.Popup.HEIGHT = 200; |
---|
| 1050 | OpenLayers.Popup.COLOR = "white"; |
---|
| 1051 | OpenLayers.Popup.OPACITY = 1; |
---|
| 1052 | OpenLayers.Popup.BORDER = "0px"; |
---|