217 lines
7.2 KiB
JavaScript
217 lines
7.2 KiB
JavaScript
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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// OSRM initialization
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// [initialization, image prefetching]
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// onload initialization routine
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OSRM.init = function() {
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OSRM.prefetchImages();
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OSRM.prefetchIcons();
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OSRM.Localization.init();
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OSRM.GUI.init();
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OSRM.Map.init();
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OSRM.Printing.init();
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OSRM.Routing.init();
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// check if the URL contains some GET parameter, e.g. for showing a route
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OSRM.parseParameters();
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};
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// prefetch images
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OSRM.GLOBALS.images = {};
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OSRM.prefetchImages = function() {
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var image_names = [ 'marker-source',
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'marker-target',
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'marker-via',
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'marker-highlight',
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'marker-source-drag',
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'marker-target-drag',
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'marker-via-drag',
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'marker-highlight-drag',
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'marker-drag',
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'cancel',
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'cancel_active',
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'cancel_hover',
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'restore',
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'restore_active',
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'restore_hover',
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'printer',
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'printer_active',
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'printer_hover',
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'printer_inactive',
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'turn-left',
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'turn-right',
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'u-turn',
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'continue',
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'slight-left',
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'slight-right',
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'sharp-left',
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'sharp-right',
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'round-about',
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'target',
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'default'
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];
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for(var i=0; i<image_names.length; i++) {
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OSRM.G.images[image_names[i]] = new Image();
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OSRM.G.images[image_names[i]].src = 'images/'+image_names[i]+'.png';
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}
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OSRM.G.images["favicon"] = new Image();
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OSRM.G.images["favicon"].src = 'images/osrm-favicon.ico';
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};
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// prefetch icons
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OSRM.GLOBALS.icons = {};
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OSRM.prefetchIcons = function() {
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var image_names = [ 'marker-source',
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'marker-target',
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'marker-via',
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'marker-highlight',
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'marker-source-drag',
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'marker-target-drag',
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'marker-via-drag',
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'marker-highlight-drag',
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'marker-drag'
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];
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for(var i=0; i<image_names.length; i++) {
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var icon = {
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iconUrl: 'images/'+image_names[i]+'.png', iconSize: new L.Point(25, 41), iconAnchor: new L.Point(13, 41),
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shadowUrl: L.ROOT_URL + 'images/marker-shadow.png', shadowSize: new L.Point(41, 41),
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popupAnchor: new L.Point(0, -33)
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};
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OSRM.G.icons[image_names[i]] = new L.SwitchableIcon(icon);
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}
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// special values for drag marker
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OSRM.G.icons['marker-drag'] = new L.SwitchableIcon( {iconUrl: 'images/marker-drag.png', iconSize: new L.Point(18, 18) } );
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};
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//parse URL GET parameters
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OSRM.parseParameters = function(){
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var called_url = document.location.search.substr(1,document.location.search.length);
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// reject messages that are clearly too long or too small
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if( called_url.length > 1000 || called_url.length == 0)
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return;
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// storage for parameter values
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var params = {};
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// parse input
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var splitted_url = called_url.split('&');
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for(var i=0; i<splitted_url.length; i++) {
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var name_val = splitted_url[i].split('=');
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if(name_val.length!=2)
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continue;
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if(name_val[0] == 'hl') {
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for(var i=0, size=OSRM.Localization.supported_languages.length; i<size; i++) {
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if( OSRM.Localization.supported_languages[i].encoding == name_val[1]) {
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OSRM.Localization.change(name_val[1]);
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break;
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}
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}
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}
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else if(name_val[0] == 'loc') {
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var coordinates = unescape(name_val[1]).split(',');
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if(coordinates.length!=2 || !OSRM.Utils.isLatitude(coordinates[0]) || !OSRM.Utils.isLongitude(coordinates[1]) )
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return;
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params.positions = params.positions || [];
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params.positions.push ( new L.LatLng( coordinates[0], coordinates[1]) );
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}
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else if(name_val[0] == 'dest') {
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var coordinates = unescape(name_val[1]).split(',');
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if(coordinates.length!=2 || !OSRM.Utils.isLatitude(coordinates[0]) || !OSRM.Utils.isLongitude(coordinates[1]) )
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return;
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params.destination = new L.LatLng( coordinates[0], coordinates[1]);
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}
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else if(name_val[0] == 'destname') {
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params.destination_name = decodeURI(name_val[1]).replace(/<\/?[^>]+(>|$)/g ,""); // discard tags
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}
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else if(name_val[0] == 'z') {
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var zoom_level = Number(name_val[1]);
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if( zoom_level<0 || zoom_level > 18)
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return;
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params.zoom = zoom;
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}
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else if(name_val[0] == 'center') {
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var coordinates = unescape(name_val[1]).split(',');
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if(coordinates.length!=2 || !OSRM.Utils.isLatitude(coordinates[0]) || !OSRM.Utils.isLongitude(coordinates[1]) )
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return;
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params.center = new L.LatLng( coordinates[0], coordinates[1]);
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}
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}
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// case 1: destination given
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if( params.destination ) {
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var index = OSRM.G.markers.setTarget( params.destination.latlng );
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if( params.destination_name )
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document.getElementById("gui-input-target").value = params.destination_name;
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else
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OSRM.Geocoder.updateAddress( OSRM.C.TARGET_LABEL, OSRM.C.DO_FALLBACK_TO_LAT_LNG );
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OSRM.G.markers.route[index].show();
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OSRM.G.markers.route[index].centerView();
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return;
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}
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// case 2: locations given
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if( params.positions ) {
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// draw via points
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if( params.positions.length > 0 ) {
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OSRM.G.markers.setSource( params.positions[0] );
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OSRM.Geocoder.updateAddress( OSRM.C.SOURCE_LABEL, OSRM.C.DO_FALLBACK_TO_LAT_LNG );
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}
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if( params.positions.length > 1 ) {
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OSRM.G.markers.setTarget( params.positions[params.positions.length-1] );
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OSRM.Geocoder.updateAddress( OSRM.C.TARGET_LABEL, OSRM.C.DO_FALLBACK_TO_LAT_LNG );
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}
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for(var i=1; i<params.positions.length-1;i++)
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OSRM.G.markers.setVia( i-1, params.positions[i] );
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for(var i=0; i<OSRM.G.markers.route.length;i++)
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OSRM.G.markers.route[i].show();
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// center on route (support for old links) / move to given view (new behaviour)
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if( params.zoom == null || params.center == null ) {
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var bounds = new L.LatLngBounds( params.positions );
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OSRM.G.map.fitBoundsUI( bounds );
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} else {
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OSRM.G.map.setView(params.center, params.zoom);
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}
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// compute route
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OSRM.Routing.getRoute();
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return;
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}
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// default case: do nothing
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};
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// onload event
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if(document.addEventListener) // FF, CH
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document.addEventListener("DOMContentLoaded", OSRM.init, false);
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else // old IE
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document.onreadystatechange = function(){if(document.readyState == "interactive" || document.readyState == "complete") OSRM.init();};
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