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- /**
- * @name InfoBox
- * @version 1.1.13 [March 19, 2014]
- * @author Gary Little (inspired by proof-of-concept code from Pamela Fox of Google)
- * @copyright Copyright 2010 Gary Little [gary at luxcentral.com]
- * @fileoverview InfoBox extends the Google Maps JavaScript API V3 <tt>OverlayView</tt> class.
- * <p>
- * An InfoBox behaves like a <tt>google.maps.InfoWindow</tt>, but it supports several
- * additional properties for advanced styling. An InfoBox can also be used as a map label.
- * <p>
- * An InfoBox also fires the same events as a <tt>google.maps.InfoWindow</tt>.
- */
- /*!
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /*jslint browser:true */
- /*global google */
- /**
- * @name InfoBoxOptions
- * @class This class represents the optional parameter passed to the {@link InfoBox} constructor.
- * @property {string|Node} content The content of the InfoBox (plain text or an HTML DOM node).
- * @property {boolean} [disableAutoPan=false] Disable auto-pan on <tt>open</tt>.
- * @property {number} maxWidth The maximum width (in pixels) of the InfoBox. Set to 0 if no maximum.
- * @property {Size} pixelOffset The offset (in pixels) from the top left corner of the InfoBox
- * (or the bottom left corner if the <code>alignBottom</code> property is <code>true</code>)
- * to the map pixel corresponding to <tt>position</tt>.
- * @property {LatLng} position The geographic location at which to display the InfoBox.
- * @property {number} zIndex The CSS z-index style value for the InfoBox.
- * Note: This value overrides a zIndex setting specified in the <tt>boxStyle</tt> property.
- * @property {string} [boxClass="infoBox"] The name of the CSS class defining the styles for the InfoBox container.
- * @property {Object} [boxStyle] An object literal whose properties define specific CSS
- * style values to be applied to the InfoBox. Style values defined here override those that may
- * be defined in the <code>boxClass</code> style sheet. If this property is changed after the
- * InfoBox has been created, all previously set styles (except those defined in the style sheet)
- * are removed from the InfoBox before the new style values are applied.
- * @property {string} closeBoxMargin The CSS margin style value for the close box.
- * The default is "2px" (a 2-pixel margin on all sides).
- * @property {string} closeBoxURL The URL of the image representing the close box.
- * Note: The default is the URL for Google's standard close box.
- * Set this property to "" if no close box is required.
- * @property {Size} infoBoxClearance Minimum offset (in pixels) from the InfoBox to the
- * map edge after an auto-pan.
- * @property {boolean} [isHidden=false] Hide the InfoBox on <tt>open</tt>.
- * [Deprecated in favor of the <tt>visible</tt> property.]
- * @property {boolean} [visible=true] Show the InfoBox on <tt>open</tt>.
- * @property {boolean} alignBottom Align the bottom left corner of the InfoBox to the <code>position</code>
- * location (default is <tt>false</tt> which means that the top left corner of the InfoBox is aligned).
- * @property {string} pane The pane where the InfoBox is to appear (default is "floatPane").
- * Set the pane to "mapPane" if the InfoBox is being used as a map label.
- * Valid pane names are the property names for the <tt>google.maps.MapPanes</tt> object.
- * @property {boolean} enableEventPropagation Propagate mousedown, mousemove, mouseover, mouseout,
- * mouseup, click, dblclick, touchstart, touchend, touchmove, and contextmenu events in the InfoBox
- * (default is <tt>false</tt> to mimic the behavior of a <tt>google.maps.InfoWindow</tt>). Set
- * this property to <tt>true</tt> if the InfoBox is being used as a map label.
- */
- /**
- * Creates an InfoBox with the options specified in {@link InfoBoxOptions}.
- * Call <tt>InfoBox.open</tt> to add the box to the map.
- * @constructor
- * @param {InfoBoxOptions} [opt_opts]
- */
- function InfoBox(opt_opts) {
- opt_opts = opt_opts || {};
- google.maps.OverlayView.apply(this, arguments);
- // Standard options (in common with google.maps.InfoWindow):
- //
- this.content_ = opt_opts.content || "";
- this.disableAutoPan_ = opt_opts.disableAutoPan || false;
- this.maxWidth_ = opt_opts.maxWidth || 0;
- this.pixelOffset_ = opt_opts.pixelOffset || new google.maps.Size(0, 0);
- this.position_ = opt_opts.position || new google.maps.LatLng(0, 0);
- this.zIndex_ = opt_opts.zIndex || null;
- // Additional options (unique to InfoBox):
- //
- this.boxClass_ = opt_opts.boxClass || "infoBox";
- this.boxStyle_ = opt_opts.boxStyle || {};
- this.closeBoxMargin_ = opt_opts.closeBoxMargin || "2px";
- this.closeBoxURL_ = opt_opts.closeBoxURL || "http://www.google.com/intl/en_us/mapfiles/close.gif";
- if (opt_opts.closeBoxURL === "") {
- this.closeBoxURL_ = "";
- }
- this.infoBoxClearance_ = opt_opts.infoBoxClearance || new google.maps.Size(1, 1);
- if (typeof opt_opts.visible === "undefined") {
- if (typeof opt_opts.isHidden === "undefined") {
- opt_opts.visible = true;
- } else {
- opt_opts.visible = !opt_opts.isHidden;
- }
- }
- this.isHidden_ = !opt_opts.visible;
- this.alignBottom_ = opt_opts.alignBottom || false;
- this.pane_ = opt_opts.pane || "floatPane";
- this.enableEventPropagation_ = opt_opts.enableEventPropagation || false;
- this.div_ = null;
- this.closeListener_ = null;
- this.moveListener_ = null;
- this.contextListener_ = null;
- this.eventListeners_ = null;
- this.fixedWidthSet_ = null;
- }
- /* InfoBox extends OverlayView in the Google Maps API v3.
- */
- InfoBox.prototype = new google.maps.OverlayView();
- /**
- * Creates the DIV representing the InfoBox.
- * @private
- */
- InfoBox.prototype.createInfoBoxDiv_ = function () {
- var i;
- var events;
- var bw;
- var me = this;
- // This handler prevents an event in the InfoBox from being passed on to the map.
- //
- var cancelHandler = function (e) {
- e.cancelBubble = true;
- if (e.stopPropagation) {
- e.stopPropagation();
- }
- };
- // This handler ignores the current event in the InfoBox and conditionally prevents
- // the event from being passed on to the map. It is used for the contextmenu event.
- //
- var ignoreHandler = function (e) {
- e.returnValue = false;
- if (e.preventDefault) {
- e.preventDefault();
- }
- if (!me.enableEventPropagation_) {
- cancelHandler(e);
- }
- };
- if (!this.div_) {
- this.div_ = document.createElement("div");
- this.setBoxStyle_();
- if (typeof this.content_.nodeType === "undefined") {
- this.div_.innerHTML = this.getCloseBoxImg_() + this.content_;
- } else {
- this.div_.innerHTML = this.getCloseBoxImg_();
- this.div_.appendChild(this.content_);
- }
- // Add the InfoBox DIV to the DOM
- this.getPanes()[this.pane_].appendChild(this.div_);
- this.addClickHandler_();
- if (this.div_.style.width) {
- this.fixedWidthSet_ = true;
- } else {
- if (this.maxWidth_ !== 0 && this.div_.offsetWidth > this.maxWidth_) {
- this.div_.style.width = this.maxWidth_;
- this.div_.style.overflow = "auto";
- this.fixedWidthSet_ = true;
- } else { // The following code is needed to overcome problems with MSIE
- bw = this.getBoxWidths_();
- this.div_.style.width = (this.div_.offsetWidth - bw.left - bw.right) + "px";
- this.fixedWidthSet_ = false;
- }
- }
- this.panBox_(this.disableAutoPan_);
- if (!this.enableEventPropagation_) {
- this.eventListeners_ = [];
- // Cancel event propagation.
- //
- // Note: mousemove not included (to resolve Issue 152)
- events = ["mousedown", "mouseover", "mouseout", "mouseup",
- "click", "dblclick", "touchstart", "touchend", "touchmove"];
- for (i = 0; i < events.length; i++) {
- this.eventListeners_.push(google.maps.event.addDomListener(this.div_, events[i], cancelHandler));
- }
- // Workaround for Google bug that causes the cursor to change to a pointer
- // when the mouse moves over a marker underneath InfoBox.
- this.eventListeners_.push(google.maps.event.addDomListener(this.div_, "mouseover", function (e) {
- this.style.cursor = "default";
- }));
- }
- this.contextListener_ = google.maps.event.addDomListener(this.div_, "contextmenu", ignoreHandler);
- /**
- * This event is fired when the DIV containing the InfoBox's content is attached to the DOM.
- * @name InfoBox#domready
- * @event
- */
- google.maps.event.trigger(this, "domready");
- }
- };
- /**
- * Returns the HTML <IMG> tag for the close box.
- * @private
- */
- InfoBox.prototype.getCloseBoxImg_ = function () {
- var img = "";
- if (this.closeBoxURL_ !== "") {
- img = "<img";
- img += " src='" + this.closeBoxURL_ + "'";
- img += " align=right"; // Do this because Opera chokes on style='float: right;'
- img += " style='";
- img += " position: relative;"; // Required by MSIE
- img += " cursor: pointer;";
- img += " margin: " + this.closeBoxMargin_ + ";";
- img += "'>";
- }
- return img;
- };
- /**
- * Adds the click handler to the InfoBox close box.
- * @private
- */
- InfoBox.prototype.addClickHandler_ = function () {
- var closeBox;
- if (this.closeBoxURL_ !== "") {
- closeBox = this.div_.firstChild;
- this.closeListener_ = google.maps.event.addDomListener(closeBox, "click", this.getCloseClickHandler_());
- } else {
- this.closeListener_ = null;
- }
- };
- /**
- * Returns the function to call when the user clicks the close box of an InfoBox.
- * @private
- */
- InfoBox.prototype.getCloseClickHandler_ = function () {
- var me = this;
- return function (e) {
- // 1.0.3 fix: Always prevent propagation of a close box click to the map:
- e.cancelBubble = true;
- if (e.stopPropagation) {
- e.stopPropagation();
- }
- /**
- * This event is fired when the InfoBox's close box is clicked.
- * @name InfoBox#closeclick
- * @event
- */
- google.maps.event.trigger(me, "closeclick");
- me.close();
- };
- };
- /**
- * Pans the map so that the InfoBox appears entirely within the map's visible area.
- * @private
- */
- InfoBox.prototype.panBox_ = function (disablePan) {
- var map;
- var bounds;
- var xOffset = 0, yOffset = 0;
- if (!disablePan) {
- map = this.getMap();
- if (map instanceof google.maps.Map) { // Only pan if attached to map, not panorama
- if (!map.getBounds().contains(this.position_)) {
- // Marker not in visible area of map, so set center
- // of map to the marker position first.
- map.setCenter(this.position_);
- }
- bounds = map.getBounds();
- var mapDiv = map.getDiv();
- var mapWidth = mapDiv.offsetWidth;
- var mapHeight = mapDiv.offsetHeight;
- var iwOffsetX = this.pixelOffset_.width;
- var iwOffsetY = this.pixelOffset_.height;
- var iwWidth = this.div_.offsetWidth;
- var iwHeight = this.div_.offsetHeight;
- var padX = this.infoBoxClearance_.width;
- var padY = this.infoBoxClearance_.height;
- var pixPosition = this.getProjection().fromLatLngToContainerPixel(this.position_);
- if (pixPosition.x < (-iwOffsetX + padX)) {
- xOffset = pixPosition.x + iwOffsetX - padX;
- } else if ((pixPosition.x + iwWidth + iwOffsetX + padX) > mapWidth) {
- xOffset = pixPosition.x + iwWidth + iwOffsetX + padX - mapWidth;
- }
- if (this.alignBottom_) {
- if (pixPosition.y < (-iwOffsetY + padY + iwHeight)) {
- yOffset = pixPosition.y + iwOffsetY - padY - iwHeight;
- } else if ((pixPosition.y + iwOffsetY + padY) > mapHeight) {
- yOffset = pixPosition.y + iwOffsetY + padY - mapHeight;
- }
- } else {
- if (pixPosition.y < (-iwOffsetY + padY)) {
- yOffset = pixPosition.y + iwOffsetY - padY;
- } else if ((pixPosition.y + iwHeight + iwOffsetY + padY) > mapHeight) {
- yOffset = pixPosition.y + iwHeight + iwOffsetY + padY - mapHeight;
- }
- }
- if (!(xOffset === 0 && yOffset === 0)) {
- // Move the map to the shifted center.
- //
- var c = map.getCenter();
- map.panBy(xOffset, yOffset);
- }
- }
- }
- };
- /**
- * Sets the style of the InfoBox by setting the style sheet and applying
- * other specific styles requested.
- * @private
- */
- InfoBox.prototype.setBoxStyle_ = function () {
- var i, boxStyle;
- if (this.div_) {
- // Apply style values from the style sheet defined in the boxClass parameter:
- this.div_.className = this.boxClass_;
- // Clear existing inline style values:
- this.div_.style.cssText = "";
- // Apply style values defined in the boxStyle parameter:
- boxStyle = this.boxStyle_;
- for (i in boxStyle) {
- if (boxStyle.hasOwnProperty(i)) {
- this.div_.style[i] = boxStyle[i];
- }
- }
- // Fix for iOS disappearing InfoBox problem.
- // See http://stackoverflow.com/questions/9229535/google-maps-markers-disappear-at-certain-zoom-level-only-on-iphone-ipad
- this.div_.style.WebkitTransform = "translateZ(0)";
- // Fix up opacity style for benefit of MSIE:
- //
- if (typeof this.div_.style.opacity !== "undefined" && this.div_.style.opacity !== "") {
- // See http://www.quirksmode.org/css/opacity.html
- this.div_.style.MsFilter = "\"progid:DXImageTransform.Microsoft.Alpha(Opacity=" + (this.div_.style.opacity * 100) + ")\"";
- this.div_.style.filter = "alpha(opacity=" + (this.div_.style.opacity * 100) + ")";
- }
- // Apply required styles:
- //
- this.div_.style.position = "absolute";
- this.div_.style.visibility = 'hidden';
- if (this.zIndex_ !== null) {
- this.div_.style.zIndex = this.zIndex_;
- }
- }
- };
- /**
- * Get the widths of the borders of the InfoBox.
- * @private
- * @return {Object} widths object (top, bottom left, right)
- */
- InfoBox.prototype.getBoxWidths_ = function () {
- var computedStyle;
- var bw = {top: 0, bottom: 0, left: 0, right: 0};
- var box = this.div_;
- if (document.defaultView && document.defaultView.getComputedStyle) {
- computedStyle = box.ownerDocument.defaultView.getComputedStyle(box, "");
- if (computedStyle) {
- // The computed styles are always in pixel units (good!)
- bw.top = parseInt(computedStyle.borderTopWidth, 10) || 0;
- bw.bottom = parseInt(computedStyle.borderBottomWidth, 10) || 0;
- bw.left = parseInt(computedStyle.borderLeftWidth, 10) || 0;
- bw.right = parseInt(computedStyle.borderRightWidth, 10) || 0;
- }
- } else if (document.documentElement.currentStyle) { // MSIE
- if (box.currentStyle) {
- // The current styles may not be in pixel units, but assume they are (bad!)
- bw.top = parseInt(box.currentStyle.borderTopWidth, 10) || 0;
- bw.bottom = parseInt(box.currentStyle.borderBottomWidth, 10) || 0;
- bw.left = parseInt(box.currentStyle.borderLeftWidth, 10) || 0;
- bw.right = parseInt(box.currentStyle.borderRightWidth, 10) || 0;
- }
- }
- return bw;
- };
- /**
- * Invoked when <tt>close</tt> is called. Do not call it directly.
- */
- InfoBox.prototype.onRemove = function () {
- if (this.div_) {
- this.div_.parentNode.removeChild(this.div_);
- this.div_ = null;
- }
- };
- /**
- * Draws the InfoBox based on the current map projection and zoom level.
- */
- InfoBox.prototype.draw = function () {
- this.createInfoBoxDiv_();
- var pixPosition = this.getProjection().fromLatLngToDivPixel(this.position_);
- this.div_.style.left = (pixPosition.x + this.pixelOffset_.width) + "px";
- if (this.alignBottom_) {
- this.div_.style.bottom = -(pixPosition.y + this.pixelOffset_.height) + "px";
- } else {
- this.div_.style.top = (pixPosition.y + this.pixelOffset_.height) + "px";
- }
- if (this.isHidden_) {
- this.div_.style.visibility = "hidden";
- } else {
- this.div_.style.visibility = "visible";
- }
- };
- /**
- * Sets the options for the InfoBox. Note that changes to the <tt>maxWidth</tt>,
- * <tt>closeBoxMargin</tt>, <tt>closeBoxURL</tt>, and <tt>enableEventPropagation</tt>
- * properties have no affect until the current InfoBox is <tt>close</tt>d and a new one
- * is <tt>open</tt>ed.
- * @param {InfoBoxOptions} opt_opts
- */
- InfoBox.prototype.setOptions = function (opt_opts) {
- if (typeof opt_opts.boxClass !== "undefined") { // Must be first
- this.boxClass_ = opt_opts.boxClass;
- this.setBoxStyle_();
- }
- if (typeof opt_opts.boxStyle !== "undefined") { // Must be second
- this.boxStyle_ = opt_opts.boxStyle;
- this.setBoxStyle_();
- }
- if (typeof opt_opts.content !== "undefined") {
- this.setContent(opt_opts.content);
- }
- if (typeof opt_opts.disableAutoPan !== "undefined") {
- this.disableAutoPan_ = opt_opts.disableAutoPan;
- }
- if (typeof opt_opts.maxWidth !== "undefined") {
- this.maxWidth_ = opt_opts.maxWidth;
- }
- if (typeof opt_opts.pixelOffset !== "undefined") {
- this.pixelOffset_ = opt_opts.pixelOffset;
- }
- if (typeof opt_opts.alignBottom !== "undefined") {
- this.alignBottom_ = opt_opts.alignBottom;
- }
- if (typeof opt_opts.position !== "undefined") {
- this.setPosition(opt_opts.position);
- }
- if (typeof opt_opts.zIndex !== "undefined") {
- this.setZIndex(opt_opts.zIndex);
- }
- if (typeof opt_opts.closeBoxMargin !== "undefined") {
- this.closeBoxMargin_ = opt_opts.closeBoxMargin;
- }
- if (typeof opt_opts.closeBoxURL !== "undefined") {
- this.closeBoxURL_ = opt_opts.closeBoxURL;
- }
- if (typeof opt_opts.infoBoxClearance !== "undefined") {
- this.infoBoxClearance_ = opt_opts.infoBoxClearance;
- }
- if (typeof opt_opts.isHidden !== "undefined") {
- this.isHidden_ = opt_opts.isHidden;
- }
- if (typeof opt_opts.visible !== "undefined") {
- this.isHidden_ = !opt_opts.visible;
- }
- if (typeof opt_opts.enableEventPropagation !== "undefined") {
- this.enableEventPropagation_ = opt_opts.enableEventPropagation;
- }
- if (this.div_) {
- this.draw();
- }
- };
- /**
- * Sets the content of the InfoBox.
- * The content can be plain text or an HTML DOM node.
- * @param {string|Node} content
- */
- InfoBox.prototype.setContent = function (content) {
- this.content_ = content;
- if (this.div_) {
- if (this.closeListener_) {
- google.maps.event.removeListener(this.closeListener_);
- this.closeListener_ = null;
- }
- // Odd code required to make things work with MSIE.
- //
- if (!this.fixedWidthSet_) {
- this.div_.style.width = "";
- }
- if (typeof content.nodeType === "undefined") {
- this.div_.innerHTML = this.getCloseBoxImg_() + content;
- } else {
- this.div_.innerHTML = this.getCloseBoxImg_();
- this.div_.appendChild(content);
- }
- // Perverse code required to make things work with MSIE.
- // (Ensures the close box does, in fact, float to the right.)
- //
- if (!this.fixedWidthSet_) {
- this.div_.style.width = this.div_.offsetWidth + "px";
- if (typeof content.nodeType === "undefined") {
- this.div_.innerHTML = this.getCloseBoxImg_() + content;
- } else {
- this.div_.innerHTML = this.getCloseBoxImg_();
- this.div_.appendChild(content);
- }
- }
- this.addClickHandler_();
- }
- /**
- * This event is fired when the content of the InfoBox changes.
- * @name InfoBox#content_changed
- * @event
- */
- google.maps.event.trigger(this, "content_changed");
- };
- /**
- * Sets the geographic location of the InfoBox.
- * @param {LatLng} latlng
- */
- InfoBox.prototype.setPosition = function (latlng) {
- this.position_ = latlng;
- if (this.div_) {
- this.draw();
- }
- /**
- * This event is fired when the position of the InfoBox changes.
- * @name InfoBox#position_changed
- * @event
- */
- google.maps.event.trigger(this, "position_changed");
- };
- /**
- * Sets the zIndex style for the InfoBox.
- * @param {number} index
- */
- InfoBox.prototype.setZIndex = function (index) {
- this.zIndex_ = index;
- if (this.div_) {
- this.div_.style.zIndex = index;
- }
- /**
- * This event is fired when the zIndex of the InfoBox changes.
- * @name InfoBox#zindex_changed
- * @event
- */
- google.maps.event.trigger(this, "zindex_changed");
- };
- /**
- * Sets the visibility of the InfoBox.
- * @param {boolean} isVisible
- */
- InfoBox.prototype.setVisible = function (isVisible) {
- this.isHidden_ = !isVisible;
- if (this.div_) {
- this.div_.style.visibility = (this.isHidden_ ? "hidden" : "visible");
- }
- };
- /**
- * Returns the content of the InfoBox.
- * @returns {string}
- */
- InfoBox.prototype.getContent = function () {
- return this.content_;
- };
- /**
- * Returns the geographic location of the InfoBox.
- * @returns {LatLng}
- */
- InfoBox.prototype.getPosition = function () {
- return this.position_;
- };
- /**
- * Returns the zIndex for the InfoBox.
- * @returns {number}
- */
- InfoBox.prototype.getZIndex = function () {
- return this.zIndex_;
- };
- /**
- * Returns a flag indicating whether the InfoBox is visible.
- * @returns {boolean}
- */
- InfoBox.prototype.getVisible = function () {
- var isVisible;
- if ((typeof this.getMap() === "undefined") || (this.getMap() === null)) {
- isVisible = false;
- } else {
- isVisible = !this.isHidden_;
- }
- return isVisible;
- };
- /**
- * Shows the InfoBox. [Deprecated; use <tt>setVisible</tt> instead.]
- */
- InfoBox.prototype.show = function () {
- this.isHidden_ = false;
- if (this.div_) {
- this.div_.style.visibility = "visible";
- }
- };
- /**
- * Hides the InfoBox. [Deprecated; use <tt>setVisible</tt> instead.]
- */
- InfoBox.prototype.hide = function () {
- this.isHidden_ = true;
- if (this.div_) {
- this.div_.style.visibility = "hidden";
- }
- };
- /**
- * Adds the InfoBox to the specified map or Street View panorama. If <tt>anchor</tt>
- * (usually a <tt>google.maps.Marker</tt>) is specified, the position
- * of the InfoBox is set to the position of the <tt>anchor</tt>. If the
- * anchor is dragged to a new location, the InfoBox moves as well.
- * @param {Map|StreetViewPanorama} map
- * @param {MVCObject} [anchor]
- */
- InfoBox.prototype.open = function (map, anchor) {
- var me = this;
- if (anchor) {
- this.position_ = anchor.getPosition();
- this.moveListener_ = google.maps.event.addListener(anchor, "position_changed", function () {
- me.setPosition(this.getPosition());
- });
- }
- this.setMap(map);
- if (this.div_) {
- this.panBox_();
- }
- };
- /**
- * Removes the InfoBox from the map.
- */
- InfoBox.prototype.close = function () {
- var i;
- if (this.closeListener_) {
- google.maps.event.removeListener(this.closeListener_);
- this.closeListener_ = null;
- }
- if (this.eventListeners_) {
- for (i = 0; i < this.eventListeners_.length; i++) {
- google.maps.event.removeListener(this.eventListeners_[i]);
- }
- this.eventListeners_ = null;
- }
- if (this.moveListener_) {
- google.maps.event.removeListener(this.moveListener_);
- this.moveListener_ = null;
- }
- if (this.contextListener_) {
- google.maps.event.removeListener(this.contextListener_);
- this.contextListener_ = null;
- }
- this.setMap(null);
- };
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