1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 | /* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD * license. See http://svn.openlayers.org/trunk/openlayers/license.txt for the * full text of the license. */ /** * @requires OpenLayers/Popup/Anchored.js */ /** * Class: OpenLayers.Popup.Framed * * Inherits from: * - <OpenLayers.Popup.Anchored> */ OpenLayers.Popup.Framed = OpenLayers.Class(OpenLayers.Popup.Anchored, { /** * Property: imageSrc * {String} location of the image to be used as the popup frame */ imageSrc: null, /** * Property: imageSize * {<OpenLayers.Size>} Size (measured in pixels) of the image located * by the 'imageSrc' property. */ imageSize: null, /** * APIProperty: isAlphaImage * {Boolean} The image has some alpha and thus needs to use the alpha * image hack. Note that setting this to true will have no noticeable * effect in FF or IE7 browsers, but will all but crush the ie6 * browser. * Default is false. */ isAlphaImage: false, /** * Property: positionBlocks * {Object} Hash of different position blocks (Object/Hashs). Each block * will be keyed by a two-character 'relativePosition' * code string (ie "tl", "tr", "bl", "br"). Block properties are * 'offset', 'padding' (self-explanatory), and finally the 'blocks' * parameter, which is an array of the block objects. * * Each block object must have 'size', 'anchor', and 'position' * properties. * * Note that positionBlocks should never be modified at runtime. */ positionBlocks: null, /** * Property: blocks * {Array[Object]} Array of objects, each of which is one "block" of the * popup. Each block has a 'div' and an 'image' property, both of * which are DOMElements, and the latter of which is appended to the * former. These are reused as the popup goes changing positions for * great economy and elegance. */ blocks: null, /** * APIProperty: fixedRelativePosition * {Boolean} We want the framed popup to work dynamically placed relative * to its anchor but also in just one fixed position. A well designed * framed popup will have the pixels and logic to display itself in * any of the four relative positions, but (understandably), this will * not be the case for all of them. By setting this property to 'true', * framed popup will not recalculate for the best placement each time * it's open, but will always open the same way. * Note that if this is set to true, it is generally advisable to also * set the 'panIntoView' property to true so that the popup can be * scrolled into view (since it will often be offscreen on open) * Default is false. */ fixedRelativePosition: false, /** * Constructor: OpenLayers.Popup.Framed * * Parameters: * id - {String} * lonlat - {<OpenLayers.LonLat>} * contentSize - {<OpenLayers.Size>} * contentHTML - {String} * anchor - {Object} Object to which we'll anchor the popup. Must expose * a 'size' (<OpenLayers.Size>) and 'offset' (<OpenLayers.Pixel>) * (Note that this is generally an <OpenLayers.Icon>). * closeBox - {Boolean} * closeBoxCallback - {Function} Function to be called on closeBox click. */ initialize:function(id, lonlat, contentSize, contentHTML, anchor, closeBox, closeBoxCallback) { OpenLayers.Popup.Anchored.prototype.initialize.apply(this, arguments); if (this.fixedRelativePosition) { //based on our decided relativePostion, set the current padding // this keeps us from getting into trouble this.updateRelativePosition(); //make calculateRelativePosition always return the specified // fixed position. this.calculateRelativePosition = function(px) { return this.relativePosition; }; } this.contentDiv.style.position = "absolute"; this.contentDiv.style.zIndex = 1; if (closeBox) { this.closeDiv.style.zIndex = 1; } this.groupDiv.style.position = "absolute"; this.groupDiv.style.top = "0px"; this.groupDiv.style.left = "0px"; this.groupDiv.style.height = "100%"; this.groupDiv.style.width = "100%"; }, /** * APIMethod: destroy */ destroy: function() { this.imageSrc = null; this.imageSize = null; this.isAlphaImage = null; this.fixedRelativePosition = false; this.positionBlocks = null; //remove our blocks for(var i = 0; i < this.blocks.length; i++) { var block = this.blocks[i]; if (block.image) { block.div.removeChild(block.image); } block.image = null; if (block.div) { this.groupDiv.removeChild(block.div); } block.div = null; } this.blocks = null; OpenLayers.Popup.Anchored.prototype.destroy.apply(this, arguments); }, /** * APIMethod: setBackgroundColor */ setBackgroundColor:function(color) { //does nothing since the framed popup's entire scheme is based on a // an image -- changing the background color makes no sense. }, /** * APIMethod: setBorder */ setBorder:function() { //does nothing since the framed popup's entire scheme is based on a // an image -- changing the popup's border makes no sense. }, /** * Method: setOpacity * Sets the opacity of the popup. * * Parameters: * opacity - {float} A value between 0.0 (transparent) and 1.0 (solid). */ setOpacity:function(opacity) { //does nothing since we suppose that we'll never apply an opacity // to a framed popup }, /** * APIMethod: setSize * Overridden here, because we need to update the blocks whenever the size * of the popup has changed. * * Parameters: * contentSize - {<OpenLayers.Size>} the new size for the popup's * contents div (in pixels). */ setSize:function(contentSize) { OpenLayers.Popup.Anchored.prototype.setSize.apply(this, arguments); this.updateBlocks(); }, /** * Method: updateRelativePosition * When the relative position changes, we need to set the new padding * BBOX on the popup, reposition the close div, and update the blocks. */ updateRelativePosition: function() { //update the padding this.padding = this.positionBlocks[this.relativePosition].padding; //update the position of our close box to new padding if (this.closeDiv) { // use the content div's css padding to determine if we should // padd the close div var contentDivPadding = this.getContentDivPadding(); this.closeDiv.style.right = contentDivPadding.right + this.padding.right + "px"; this.closeDiv.style.top = contentDivPadding.top + this.padding.top + "px"; } this.updateBlocks(); }, /** * Method: calculateNewPx * Besides the standard offset as determined by the Anchored class, our * Framed popups have a special 'offset' property for each of their * positions, which is used to offset the popup relative to its anchor. * * Parameters: * px - {<OpenLayers.Pixel>} * * Returns: * {<OpenLayers.Pixel>} The the new px position of the popup on the screen * relative to the passed-in px. */ calculateNewPx:function(px) { var newPx = OpenLayers.Popup.Anchored.prototype.calculateNewPx.apply( this, arguments ); newPx = newPx.offset(this.positionBlocks[this.relativePosition].offset); return newPx; }, /** * Method: createBlocks */ createBlocks: function() { this.blocks = []; //since all positions contain the same number of blocks, we can // just pick the first position and use its blocks array to create // our blocks array var firstPosition = null; for(var key in this.positionBlocks) { firstPosition = key; break; } var position = this.positionBlocks[firstPosition]; for (var i = 0; i < position.blocks.length; i++) { var block = {}; this.blocks.push(block); var divId = this.id + '_FrameDecorationDiv_' + i; block.div = OpenLayers.Util.createDiv(divId, null, null, null, "absolute", null, "hidden", null ); var imgId = this.id + '_FrameDecorationImg_' + i; var imageCreator = (this.isAlphaImage) ? OpenLayers.Util.createAlphaImageDiv : OpenLayers.Util.createImage; block.image = imageCreator(imgId, null, this.imageSize, this.imageSrc, "absolute", null, null, null ); block.div.appendChild(block.image); this.groupDiv.appendChild(block.div); } }, /** * Method: updateBlocks * Internal method, called on initialize and when the popup's relative * position has changed. This function takes care of re-positioning * the popup's blocks in their appropropriate places. */ updateBlocks: function() { if (!this.blocks) { this.createBlocks(); } if (this.size && this.relativePosition) { var position = this.positionBlocks[this.relativePosition]; for (var i = 0; i < position.blocks.length; i++) { var positionBlock = position.blocks[i]; var block = this.blocks[i]; // adjust sizes var l = positionBlock.anchor.left; var b = positionBlock.anchor.bottom; var r = positionBlock.anchor.right; var t = positionBlock.anchor.top; //note that we use the isNaN() test here because if the // size object is initialized with a "auto" parameter, the // size constructor calls parseFloat() on the string, // which will turn it into NaN // var w = (isNaN(positionBlock.size.w)) ? this.size.w - (r + l) : positionBlock.size.w; var h = (isNaN(positionBlock.size.h)) ? this.size.h - (b + t) : positionBlock.size.h; block.div.style.width = (w < 0 ? 0 : w) + 'px'; block.div.style.height = (h < 0 ? 0 : h) + 'px'; block.div.style.left = (l != null) ? l + 'px' : ''; block.div.style.bottom = (b != null) ? b + 'px' : ''; block.div.style.right = (r != null) ? r + 'px' : ''; block.div.style.top = (t != null) ? t + 'px' : ''; block.image.style.left = positionBlock.position.x + 'px'; block.image.style.top = positionBlock.position.y + 'px'; } this.contentDiv.style.left = this.padding.left + "px"; this.contentDiv.style.top = this.padding.top + "px"; } }, CLASS_NAME: "OpenLayers.Popup.Framed" }); |