我正在使用Multimarker将带有标签的标记添加到自定义谷歌地图。包含标签的 div 使用 onclick 调用函数。但是如果我在地图上添加一条折线，onclick 就会停止工作。我想不通为什么...
这是添加标记的代码：
var fastMarkers = [];
var myLatlng = new google.maps.LatLng(70,-101);
var marker = new com.redfin.FastMarker(/*id*/1, myLatlng, ["<div onclick='test()'><span>mylabel</span></div>"], null);
fastMarkers.push(marker);
new com.redfin.FastMarkerOverlay(map, fastMarkers);
这是折线：
var linepathcoords = [
new google.maps.LatLng(71, -103),
new google.maps.LatLng(73, -107),
];
var linepath=new google.maps.Polyline({
path:linepathcoords,
strokeColor:"#ff0000",
strokeOpacity:0.9,
strokeWeight:2
});
//This next line is what's causing the onclick in the marker to stop working. Why?
linepath.setMap(map);
};
这是 Multimarker 的代码：
/*
Copyright 2010 Redfin Corporation
Licensed under the Apache License, Version 2.0:
http://www.apache.org/licenses/LICENSE-2.0
*/
com = {redfin: {}};
/* Construct a new FastMarkerOverlay layer for a V2 map
* @constructor
* @param {google.maps.Map} map the map to which we'll add markers
* @param {Array.<com.redfin.FastMarker>} markers the array of markers to display on the map
*/
com.redfin.FastMarkerOverlay = function(map, markers) {
this.setMap(map);
this._markers = markers;
}
com.redfin.FastMarkerOverlay.prototype = new google.maps.OverlayView();
com.redfin.FastMarkerOverlay.prototype.onAdd = function() {
this._div = document.createElement("div");
var panes = this.getPanes();
panes.overlayLayer.appendChild(this._div);
}
/* Copy our data to a new FastMarkerOverlay
* @param {google.maps.Map} map the map to which the copy will add markers
* @return {FastMarkerOverlay} Copy of FastMarkerOverlay
*/
com.redfin.FastMarkerOverlay.prototype.copy = function(map) {
var markers = this._markers;
var i = markers.length;
var markersCopy = new Array(i);
while (i--) {
markersCopy[i] = markers[i].copy();
}
return new com.redfin.FastMarkerOverlay(map, markers);
};
/* Draw the FastMarkerOverlay based on the current projection and zoom level; called by Gmaps */
com.redfin.FastMarkerOverlay.prototype.draw = function() {
// if already removed, never draw
if (!this._div) return;
// Size and position the overlay. We use a southwest and northeast
// position of the overlay to peg it to the correct position and size.
// We need to retrieve the projection from this overlay to do this.
var overlayProjection = this.getProjection();
// DGF use fastloop http://ajaxian.com/archives/fast-loops-in-js
// JD Create string with all the markers
var i = this._markers.length;
var textArray = [];
while (i--) {
var marker = this._markers[i];
var divPixel = overlayProjection.fromLatLngToDivPixel(marker._latLng);
textArray.push("<div style='position:absolute; left:");
textArray.push(divPixel.x + marker._leftOffset);
textArray.push("px; top:");
textArray.push(divPixel.y + marker._topOffset);
textArray.push("px;")
if (marker._zIndex) {
textArray.push(" z-index:");
textArray.push(marker._zIndex);
textArray.push(";");
}
textArray.push("'");
if (marker._divClassName) {
textArray.push(" class='");
textArray.push(marker._divClassName);
textArray.push("'");
}
textArray.push(" id='");
textArray.push(marker._id);
textArray.push("' >");
var markerHtmlArray = marker._htmlTextArray;
var j = markerHtmlArray.length;
var currentSize = textArray.length;
while (j--) {
textArray[j + currentSize] = markerHtmlArray[j];
}
textArray.push("</div>");
}
//Insert the HTML into the overlay
this._div.innerHTML = textArray.join('');
}
/** Hide all of the markers */
com.redfin.FastMarkerOverlay.prototype.hide = function() {
if (!this._div) return;
this._div.style.display = "none";
}
/** Show all of the markers after hiding them */
com.redfin.FastMarkerOverlay.prototype.unhide = function() {
if (!this._div) return;
this._div.style.display = "block";
}
/** Remove the overlay from the map; never use the overlay again after calling this function */
com.redfin.FastMarkerOverlay.prototype.onRemove = function() {
this._div.parentNode.removeChild(this._div);
this._div = null;
}
/** Create a single marker for use in FastMarkerOverlay
* @constructor
* @param {string} id DOM node ID of the div that will contain the marker
* @param {google.maps.LatLng} latLng geographical location of the marker
* @param {Array.<string>} htmlTextArray an array of strings which we'll join together to form the HTML of your marker
* @param {string=} divClassName the CSS class of the div that will contain the marker. (optional)
* @param {string=} zIndex zIndex of the div that will contain the marker. (optional, 'auto' by default)
* @param {number=} leftOffset the offset in pixels by which we'll horizontally adjust the marker position (optional)
* @param {number=} topOffset the offset in pixels by which we'll vertically adjust the marker position (optional)
*/
com.redfin.FastMarker = function(id, latLng, htmlTextArray, divClassName, zIndex, leftOffset, topOffset) {
this._id = id;
this._latLng = latLng;
this._htmlTextArray = htmlTextArray;
this._divClassName = divClassName;
this._zIndex = zIndex;
this._leftOffset = leftOffset || 0;
this._topOffset = topOffset || 0;
}
/** Copy the FastMarker
* @return {com.redfin.FastMarker} duplicate of this marker
*/
com.redfin.FastMarker.prototype.copy = function() {
var htmlArray = this._htmlTextArray;
var i = htmlArray.length;
var htmlArrayCopy = new Array(i);
while (i--) {
htmlArrayCopy[i] = htmlArray[i];
}
return new com.redfin.FastMarker(this._id, latLng, htmlArrayCopy, this._divClassName, this._zIndex, this._leftOffset, this._topOffset);
}
附加信息：在添加折线之前，我可以使用 Firefox 中的“检查”工具并选择包含标签的 div 和 span。但添加折线后，div 消失了（标签在地图上仍然可见，但我无法单击它，也无法使用检查工具选择它。此外，添加折线后，我在 Firefox 中看到“检查” - 列出很多 div 突然有“溢出：隐藏”，我认为他们以前没有。这是一个线索吗？如果我删除折线也无济于事。onclick 功能标签仍然不起作用。就像，我可以添加折线，删除它，添加标签，标签的 onclick 不起作用。或者我可以添加标签，添加折线，标签的 onclick 停止工作，删除折线，标签onclick 仍然无法正常工作。）