ngmap
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The Simplest AngularJS Google Maps V3 Directive
260 lines (222 loc) • 8.74 kB
JavaScript
/**
* @ngdoc directive
* @memberof ngmap
* @name custom-marker
* @param Attr2Options {service} convert html attribute to Google map api options
* @param $timeout {service} AngularJS $timeout
* @description
* Marker with html
* Requires: map directive
* Restrict To: Element
*
* @attr {String} position required, position on map
* @attr {Number} z-index optional
* @attr {Boolean} visible optional
* @example
*
* Example:
* <map center="41.850033,-87.6500523" zoom="3">
* <custom-marker position="41.850033,-87.6500523">
* <div>
* <b>Home</b>
* </div>
* </custom-marker>
* </map>
*
*/
/* global document */
(function() {
'use strict';
var parser, $timeout, $compile, NgMap;
var supportedTransform = (function getSupportedTransform() {
var prefixes = 'transform WebkitTransform MozTransform OTransform msTransform'.split(' ');
var div = document.createElement('div');
for(var i = 0; i < prefixes.length; i++) {
if(div && div.style[prefixes[i]] !== undefined) {
return prefixes[i];
}
}
return false;
})();
var CustomMarker = function(options) {
options = options || {};
this.el = document.createElement('div');
this.el.style.display = 'block';
this.el.style.visibility = "hidden";
this.visible = true;
for (var key in options) { /* jshint ignore:line */
this[key] = options[key];
}
};
var setCustomMarker = function() {
CustomMarker.prototype = new google.maps.OverlayView();
CustomMarker.prototype.setContent = function(html, scope) {
this.el.innerHTML = html;
this.el.style.position = 'absolute';
this.el.style.top = 0;
this.el.style.left = 0;
if (scope) {
$compile(angular.element(this.el).contents())(scope);
}
};
CustomMarker.prototype.getDraggable = function() {
return this.draggable;
};
CustomMarker.prototype.setDraggable = function(draggable) {
this.draggable = draggable;
};
CustomMarker.prototype.getPosition = function() {
return this.position;
};
CustomMarker.prototype.setPosition = function(position) {
position && (this.position = position); /* jshint ignore:line */
var _this = this;
if (this.getProjection() && typeof this.position.lng == 'function') {
console.log(_this.getProjection());
var setPosition = function() {
if (!_this.getProjection()) { return; }
var posPixel = _this.getProjection().fromLatLngToDivPixel(_this.position);
var x = Math.round(posPixel.x - (_this.el.offsetWidth/2));
var y = Math.round(posPixel.y - _this.el.offsetHeight - 10); // 10px for anchor
if (supportedTransform) {
_this.el.style[supportedTransform] = "translate(" + x + "px, " + y + "px)";
} else {
_this.el.style.left = x + "px";
_this.el.style.top = y + "px";
}
_this.el.style.visibility = "visible";
};
if (_this.el.offsetWidth && _this.el.offsetHeight) {
setPosition();
} else {
//delayed left/top calculation when width/height are not set instantly
$timeout(setPosition, 300);
}
}
};
CustomMarker.prototype.setZIndex = function(zIndex) {
if (zIndex === undefined) return;
(this.zIndex !== zIndex) && (this.zIndex = zIndex); /* jshint ignore:line */
(this.el.style.zIndex !== this.zIndex) && (this.el.style.zIndex = this.zIndex);
};
CustomMarker.prototype.getVisible = function() {
return this.visible;
};
CustomMarker.prototype.setVisible = function(visible) {
if (this.el.style.display === 'none' && visible)
{
this.el.style.display = 'block';
} else if (this.el.style.display !== 'none' && !visible) {
this.el.style.display = 'none';
}
this.visible = visible;
};
CustomMarker.prototype.addClass = function(className) {
var classNames = this.el.className.trim().split(' ');
(classNames.indexOf(className) == -1) && classNames.push(className); /* jshint ignore:line */
this.el.className = classNames.join(' ');
};
CustomMarker.prototype.removeClass = function(className) {
var classNames = this.el.className.split(' ');
var index = classNames.indexOf(className);
(index > -1) && classNames.splice(index, 1); /* jshint ignore:line */
this.el.className = classNames.join(' ');
};
CustomMarker.prototype.onAdd = function() {
this.getPanes().overlayMouseTarget.appendChild(this.el);
};
CustomMarker.prototype.draw = function() {
this.setPosition();
this.setZIndex(this.zIndex);
this.setVisible(this.visible);
};
CustomMarker.prototype.onRemove = function() {
this.el.parentNode.removeChild(this.el);
//this.el = null;
};
};
var linkFunc = function(orgHtml, varsToWatch) {
//console.log('orgHtml', orgHtml, 'varsToWatch', varsToWatch);
return function(scope, element, attrs, mapController) {
mapController = mapController[0]||mapController[1];
var orgAttrs = parser.orgAttributes(element);
var filtered = parser.filter(attrs);
var options = parser.getOptions(filtered, {scope: scope});
var events = parser.getEvents(scope, filtered);
/**
* build a custom marker element
*/
element[0].style.display = 'none';
console.log("custom-marker options", options);
var customMarker = new CustomMarker(options);
// Do we really need a timeout with $scope.$apply() here?
setTimeout(function() { //apply contents, class, and location after it is compiled
scope.$watch('[' + varsToWatch.join(',') + ']', function(newVal, oldVal) {
customMarker.setContent(orgHtml, scope);
}, true);
customMarker.setContent(element[0].innerHTML, scope);
var classNames =
(element[0].firstElementChild) && (element[0].firstElementChild.className || '');
customMarker.class && (classNames += " " + customMarker.class);
customMarker.addClass('custom-marker');
classNames && customMarker.addClass(classNames);
console.log('customMarker', customMarker, 'classNames', classNames);
if (!(options.position instanceof google.maps.LatLng)) {
NgMap.getGeoLocation(options.position).then(
function(latlng) {
customMarker.setPosition(latlng);
}
);
}
});
console.log("custom-marker events", events);
for (var eventName in events) { /* jshint ignore:line */
google.maps.event.addDomListener(
customMarker.el, eventName, events[eventName]);
}
mapController.addObject('customMarkers', customMarker);
//set observers
mapController.observeAttrSetObj(orgAttrs, attrs, customMarker);
element.bind('$destroy', function() {
//Is it required to remove event listeners when DOM is removed?
mapController.deleteObject('customMarkers', customMarker);
});
}; // linkFunc
};
var customMarkerDirective = function(
_$timeout_, _$compile_, $interpolate, Attr2MapOptions, _NgMap_, escapeRegExp
) {
parser = Attr2MapOptions;
$timeout = _$timeout_;
$compile = _$compile_;
NgMap = _NgMap_;
var exprStartSymbol = $interpolate.startSymbol();
var exprEndSymbol = $interpolate.endSymbol();
var exprRegExp = new RegExp(escapeRegExp(exprStartSymbol) + '([^' + exprEndSymbol.substring(0, 1) + ']+)' + escapeRegExp(exprEndSymbol), 'g');
return {
restrict: 'E',
require: ['?^map','?^ngMap'],
compile: function(element) {
console.log('el', element);
setCustomMarker();
element[0].style.display ='none';
var orgHtml = element.html();
var matches = orgHtml.match(exprRegExp);
var varsToWatch = [];
//filter out that contains '::', 'this.'
(matches || []).forEach(function(match) {
var toWatch = match.replace(exprStartSymbol,'').replace(exprEndSymbol,'');
if (match.indexOf('::') == -1 &&
match.indexOf('this.') == -1 &&
varsToWatch.indexOf(toWatch) == -1) {
varsToWatch.push(match.replace(exprStartSymbol,'').replace(exprEndSymbol,''));
}
});
return linkFunc(orgHtml, varsToWatch);
}
}; // return
};// function
customMarkerDirective.$inject =
['$timeout', '$compile', '$interpolate', 'Attr2MapOptions', 'NgMap', 'escapeRegexpFilter'];
angular.module('ngMap').directive('customMarker', customMarkerDirective);
})();