fd4d2918f1
git-svn-id: http://svn.openlayers.org/trunk/openlayers@3787 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
147 lines
4.1 KiB
JavaScript
147 lines
4.1 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under a modified BSD license.
|
|
* See http://svn.openlayers.org/trunk/openlayers/repository-license.txt
|
|
* for the full text of the license. */
|
|
|
|
|
|
/**
|
|
* @requires OpenLayers/Popup.js
|
|
*
|
|
* Class: OpenLayers.Popup.Anchored
|
|
*
|
|
* Inherits from:
|
|
* - <OpenLayers.Popup>
|
|
*/
|
|
OpenLayers.Popup.Anchored = OpenLayers.Class(OpenLayers.Popup, {
|
|
|
|
/**
|
|
* Parameter: relativePosition
|
|
* {String} Relative position of the popup ("lr", "ll", "tr", or "tl")
|
|
*/
|
|
relativePosition: null,
|
|
|
|
/**
|
|
* Parameter: anchor
|
|
* {Object} Object to which we'll anchor the popup.
|
|
* Must expose a 'size' (<OpenLayers.Size>) and
|
|
* 'offset' (<OpenLayers.Pixel>)
|
|
*/
|
|
anchor: null,
|
|
|
|
/**
|
|
* Constructor: OpenLayers.Popup.Anchored
|
|
*
|
|
* Parameters:
|
|
* id - {String}
|
|
* lonlat - {<OpenLayers.LonLat>}
|
|
* size - {<OpenLayers.Size>}
|
|
* contentHTML - {String}
|
|
* anchor - {Object} Object which must expose a
|
|
* - 'size' (OpenLayers.Size) and
|
|
* - 'offset' (OpenLayers.Pixel)
|
|
* (this is generally an OpenLayers.Icon)
|
|
* closeBox - {Boolean}
|
|
*/
|
|
initialize:function(id, lonlat, size, contentHTML, anchor, closeBox) {
|
|
var newArguments = new Array(id, lonlat, size, contentHTML, closeBox);
|
|
OpenLayers.Popup.prototype.initialize.apply(this, newArguments);
|
|
|
|
this.anchor = (anchor != null) ? anchor
|
|
: { size: new OpenLayers.Size(0,0),
|
|
offset: new OpenLayers.Pixel(0,0)};
|
|
},
|
|
|
|
/**
|
|
* Method: draw
|
|
*
|
|
* Parameters:
|
|
* px - {<OpenLayers.Pixel>}
|
|
*
|
|
* Return:
|
|
* {DOMElement} Reference to a div that contains the drawn popup
|
|
*/
|
|
draw: function(px) {
|
|
if (px == null) {
|
|
if ((this.lonlat != null) && (this.map != null)) {
|
|
px = this.map.getLayerPxFromLonLat(this.lonlat);
|
|
}
|
|
}
|
|
|
|
//calculate relative position
|
|
this.relativePosition = this.calculateRelativePosition(px);
|
|
|
|
return OpenLayers.Popup.prototype.draw.apply(this, arguments);
|
|
},
|
|
|
|
/**
|
|
* Method: calculateRelativePosition
|
|
*
|
|
* Parameters:
|
|
* px - {<OpenLayers.Pixel>}
|
|
*
|
|
* Return:
|
|
* {String} The relative position ("br" "tr" "tl "bl") at which the popup
|
|
* should be placed
|
|
*/
|
|
calculateRelativePosition:function(px) {
|
|
var lonlat = this.map.getLonLatFromLayerPx(px);
|
|
|
|
var extent = this.map.getExtent();
|
|
var quadrant = extent.determineQuadrant(lonlat);
|
|
|
|
return OpenLayers.Bounds.oppositeQuadrant(quadrant);
|
|
},
|
|
|
|
/**
|
|
* Method: moveTo
|
|
*
|
|
* Parameters:
|
|
* px - {<OpenLayers.Pixel>}
|
|
*/
|
|
moveTo: function(px) {
|
|
|
|
var newPx = this.calculateNewPx(px);
|
|
|
|
var newArguments = new Array(newPx);
|
|
OpenLayers.Popup.prototype.moveTo.apply(this, newArguments);
|
|
},
|
|
|
|
/**
|
|
* Method: setSize
|
|
*
|
|
* Parameters:
|
|
* size - {<OpenLayers.Size>}
|
|
*/
|
|
setSize:function(size) {
|
|
OpenLayers.Popup.prototype.setSize.apply(this, arguments);
|
|
|
|
if ((this.lonlat) && (this.map)) {
|
|
var px = this.map.getLayerPxFromLonLat(this.lonlat);
|
|
this.moveTo(px);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Method: calculateNewPx
|
|
*
|
|
* Parameters:
|
|
* px - {<OpenLayers.Pixel>}
|
|
*
|
|
* Return:
|
|
* {<OpenLayers.Pixel>} The the new px position of the popup on the screen
|
|
* relative to the passed-in px
|
|
*/
|
|
calculateNewPx:function(px) {
|
|
var newPx = px.offset(this.anchor.offset);
|
|
|
|
var top = (this.relativePosition.charAt(0) == 't');
|
|
newPx.y += (top) ? -this.size.h : this.anchor.size.h;
|
|
|
|
var left = (this.relativePosition.charAt(1) == 'l');
|
|
newPx.x += (left) ? -this.size.w : this.anchor.size.w;
|
|
|
|
return newPx;
|
|
},
|
|
|
|
CLASS_NAME: "OpenLayers.Popup.Anchored"
|
|
});
|