Leaflet Bing - see https://github.com/shramov/leaflet-plugins

TileLayer.Bing.js

/* 
 * Portions of this code and logic copied from OpenLayers and
 * redistributed under the original Clear BSD license terms:
 * 
 * http://trac.osgeo.org/openlayers/browser/license.txt
 *
 * Copyright 2005-2010 OpenLayers Contributors, released under 
 * the Clear BSD license. See authors.txt for a list of contributors.
 * All rights reserved.
 *
 * --
 *
 * Leaflet-specific modifications are released under the following
 * terms:
 *
 * This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details. 
 */

L.TileLayer.Bing = L.TileLayer.extend({
  
  supportedTypes: ['Road', 'Aerial', 'AerialWithLabels'],
  
  attributionTemplate: '<span style="display:inline-block">' +
       '<a target="_blank" href="http://www.bing.com/maps/">' +
       '<img src="{logo}" /></a><br><span>{copyrights}' +
       '<a style="white-space: nowrap" target="_blank" '+
       'href="http://www.microsoft.com/maps/product/terms.html">' +
       'Terms of Use</a></span></span>',
  
  initialize: function(/*String*/ apiKey, /*String*/ mapType, /*Object*/ options) {
    
    this._apiKey = apiKey;
    this._mapType = mapType;
    
    this._loadMetadata();
    
    L.Util.setOptions(this, options);
  },
  
  _loadMetadata: function() {
    this._callbackId = "_l_tilelayer_bing_" + (L.TileLayer.Bing._callbackId++);
    var that = this;
    window[this._callbackId] = function() {
      L.TileLayer.Bing.processMetadata.apply(that, arguments);
    };
    
    var params = {
      key: this._apiKey,
      jsonp: this._callbackId,
      include: 'ImageryProviders'
    },
        url = "http://dev.virtualearth.net/REST/v1/Imagery/Metadata/" +
              this._mapType + L.Util.getParamString(params),
        script = document.createElement("script");
        
    script.type = "text/javascript";
    script.src = url;
    script.id = this._callbackId;
    document.getElementsByTagName("head")[0].appendChild(script);
  },
  
  _onMetadataLoaded: function() {},
  
  onAdd: function(map, insertAtTheBottom) {
    if (!this.metadata) {
      this._onMetadataLoaded = L.Util.bind(function() {
        L.TileLayer.prototype.onAdd.call(this, map, insertAtTheBottom);
        map.on('moveend', this._updateAttribution, this);
        this._updateAttribution();
      }, this);
    } else {
      L.TileLayer.prototype.onAdd.call(this, map, insertAtTheBottom);
      map.on('moveend', this._updateAttribution, this);
      this._updateAttribution();
    }
  },
  
  onRemove: function(map) {
    if (this._map.attributionControl) {
      this._map.attributionControl.removeAttribution(this.attribution);
    }
    this._map.off('moveend', this._updateAttribution, this);
    L.TileLayer.prototype.onRemove.call(this, map);
  },
  
  getTileUrl: function(xy, z) {
    var subdomains = this.options.subdomains,
			  quadDigits = [],
			  i = z,
			  digit,
			  mask,
			  quadKey;
    // borrowed directly from OpenLayers
    for (; i > 0; --i) {
        digit = '0';
        mask = 1 << (i - 1);
        if ((xy.x & mask) != 0) {
            digit++;
        }
        if ((xy.y & mask) != 0) {
            digit++;
            digit++;
        }
        quadDigits.push(digit);
    }

		return this._url
				.replace('{subdomain}', subdomains[(xy.x + xy.y) % subdomains.length])
				.replace('{quadkey}', quadDigits.join(""));		
  },
  
  _updateAttribution: function() {
    if (this._map.attributionControl) {
      var metadata = this.metadata;
      var res = metadata.resourceSets[0].resources[0];
      var bounds = this._map.getBounds();
      var providers = res.imageryProviders, zoom = this._map.getZoom() + 1,
          copyrights = "", provider, i, ii, j, jj, bbox, coverage;
      for (i=0,ii=providers.length; i<ii; ++i) {
          provider = providers[i];
          for (j=0,jj=provider.coverageAreas.length; j<jj; ++j) {
              coverage = provider.coverageAreas[j];
              if (zoom <= coverage.zoomMax && zoom >= coverage.zoomMin && coverage.bbox.intersects(bounds)) {
                  copyrights += provider.attribution + " ";
                  j = jj;
              }
          }
      }
      this._map.attributionControl.removeAttribution(this.attribution);
      this._map.attributionControl._attributions = {};
      this._map.attributionControl._update();
      this.attribution = this.attributionTemplate
        .replace('{logo}', metadata.brandLogoUri)
        .replace('{copyrights}', copyrights);
      this._map.attributionControl.addAttribution(this.attribution);
    }
  }    
});

L.TileLayer.Bing._callbackId = 0;

L.TileLayer.Bing.processMetadata = function(metadata) {
  if (metadata.authenticationResultCode != 'ValidCredentials') {
    throw "Invalid Bing Maps API Key"
  }
  
  if (!metadata.resourceSets.length || !metadata.resourceSets[0].resources.length) {
    throw "No resources returned, perhaps " + this._mapType + " is an invalid map type?";
  }
  
  if (metadata.statusCode != 200) {
    throw "Bing Maps API request failed with status code " + metadata.statusCode;
  }
  
  this.metadata = metadata;
  var res = metadata.resourceSets[0].resources[0],
      providers = res.imageryProviders,
      i = 0,
      j,
      provider,
      bbox,
      script = document.getElementById(this._callbackId);
  
  for (; i<providers.length; i++) {
    provider = providers[i];
    for (j=0; j<provider.coverageAreas.length; j++) {
      bbox = provider.coverageAreas[j].bbox;
      provider.coverageAreas[j].bbox = new L.LatLngBounds(new L.LatLng(bbox[0],bbox[1],true),new L.LatLng(bbox[2],bbox[3], true));
    }
  }
  
  this._url = res.imageUrl.replace('{culture}','en-US');
  this.options.subdomains = [].concat(res.imageUrlSubdomains);
  script.parentNode.removeChild(script);
  window[this._callbackId] = undefined; // cannot delete from window in IE
  delete this._callbackId;
  this._onMetadataLoaded();
}

Hi,
We are using leaflet with bing map
I am wondering if it is possible to retrieve session id to decrease billable calls to bingmap
If we use session id instead of key after first call they are nonbillable.
For bingmap ajax there is getcredentials function but I could not find anything similar with leaflet.
callback function only includes traceid.
Thanks

Hi everybody, I'm trying to add tile bing to my map, espacially 'AerialWithLabels' type. So do you have any idea how to use that? I'm using leaflet with angularJS. Honestly, I'm beginner in leaflet.

Any help is appreciated. Thankx for advance