218 lines
9.0 KiB
JavaScript
218 lines
9.0 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 geocoding routines
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// [geocoder query, management and display of geocoder results]
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// [TODO: better separation of GUI and geocoding routines, reverse geocoding]
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// some constants
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OSRM.CONSTANTS.SOURCE_LABEL = "source";
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OSRM.CONSTANTS.TARGET_LABEL = "target";
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OSRM.CONSTANTS.VIA_LABEL = "via";
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// update geo coordinates in input boxes
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function updateLocation(marker_id) {
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if (marker_id == OSRM.C.SOURCE_LABEL && OSRM.G.markers.hasSource()) {
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document.getElementById("input-source-name").value = OSRM.G.markers.route[0].getPosition().lat.toFixed(6) + ", " + OSRM.G.markers.route[0].getPosition().lng.toFixed(6);
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} else if (marker_id == OSRM.C.TARGET_LABEL && OSRM.G.markers.hasTarget()) {
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document.getElementById("input-target-name").value = OSRM.G.markers.route[OSRM.G.markers.route.length-1].getPosition().lat.toFixed(6) + ", " + OSRM.G.markers.route[OSRM.G.markers.route.length-1].getPosition().lng.toFixed(6);
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}
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}
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// process input request and call geocoder if needed
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function callGeocoder(marker_id, query) {
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if (marker_id == OSRM.C.SOURCE_LABEL && OSRM.G.markers.hasSource() && OSRM.G.markers.route[0].dirty_move == false && OSRM.G.markers.route[0].dirty_type == false)
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return;
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if (marker_id == OSRM.C.TARGET_LABEL && OSRM.G.markers.hasTarget() && OSRM.G.markers.route[OSRM.G.markers.route.length-1].dirty_move == false && OSRM.G.markers.route[OSRM.G.markers.route.length-1].dirty_type == false)
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return;
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if(query=="")
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return;
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//geo coordinates given -> go directly to drawing results
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if(query.match(/^\s*[-+]?[0-9]*\.?[0-9]+\s*[,;]\s*[-+]?[0-9]*\.?[0-9]+\s*$/)){
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var coord = query.split(/[,;]/);
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onclickGeocoderResult(marker_id, coord[0], coord[1], true);
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return;
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}
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//build request
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if (marker_id == OSRM.C.SOURCE_LABEL) {
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var call = OSRM.DEFAULTS.HOST_GEOCODER_URL + "?format=json" + OSRM.DEFAULTS.GEOCODER_BOUNDS + "&q=" + query;
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OSRM.JSONP.call( call, showGeocoderResults_Source, showGeocoderResults_Timeout, OSRM.DEFAULTS.JSONP_TIMEOUT, "geocoder_source" );
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} else if (marker_id == OSRM.C.TARGET_LABEL) {
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var call = OSRM.DEFAULTS.HOST_GEOCODER_URL + "?format=json" + OSRM.DEFAULTS.GEOCODER_BOUNDS + "&q=" + query;
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OSRM.JSONP.call( call, showGeocoderResults_Target, showGeocoderResults_Timeout, OSRM.DEFAULTS.JSONP_TIMEOUT, "geocoder_target" );
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}
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}
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// helper function for clicks on geocoder search results
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function onclickGeocoderResult(marker_id, lat, lon, do_reverse_geocode, do_zoom ) {
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var index;
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if( marker_id == OSRM.C.SOURCE_LABEL )
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index = OSRM.G.markers.setSource( new L.LatLng(lat, lon) );
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else if( marker_id == OSRM.C.TARGET_LABEL )
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index = OSRM.G.markers.setTarget( new L.LatLng(lat, lon) );
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else
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index = -1; // via nodes not yet implemented
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if( do_reverse_geocode == true )
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updateAddress(marker_id);
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var zoom = undefined;
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if( do_zoom == false )
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zoom = OSRM.G.map.getZoom();
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OSRM.G.markers.route[index].show();
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if( !OSRM.G.markers.route[index].dirty_move || OSRM.G.markers.route[index].dirty_type )
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OSRM.G.markers.route[index].centerView(zoom);
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getRoute(OSRM.C.FULL_DESCRIPTION);
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OSRM.G.markers.route[index].dirty_move = false;
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OSRM.G.markers.route[index].dirty_type = false;
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}
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// process JSONP response of geocoder
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// (with wrapper functions for source/target jsonp)
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function showGeocoderResults_Source(response) { showGeocoderResults(OSRM.C.SOURCE_LABEL, response); }
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function showGeocoderResults_Target(response) { showGeocoderResults(OSRM.C.TARGET_LABEL, response); }
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function showGeocoderResults(marker_id, response) {
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if(response){
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if(response.length == 0) {
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showGeocoderResults_Empty(marker_id);
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return;
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}
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var html = "";
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html += '<table class="results-table">';
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for(var i=0; i < response.length; i++){
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var result = response[i];
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//odd or even ?
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var rowstyle='results-odd';
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if(i%2==0) { rowstyle='results-even'; }
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html += '<tr class="'+rowstyle+'">';
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html += '<td class="result-counter"><span">'+(i+1)+'.</span></td>';
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html += '<td class="result-items">';
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if(result.display_name){
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html += '<div class="result-item" onclick="onclickGeocoderResult(\''+marker_id+'\', '+result.lat+', '+result.lon+');">'+result.display_name+'</div>';
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}
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html += "</td></tr>";
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}
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html += '</table>';
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document.getElementById('information-box-headline').innerHTML = OSRM.loc("SEARCH_RESULTS")+":";
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document.getElementById('information-box').innerHTML = html;
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onclickGeocoderResult(marker_id, response[0].lat, response[0].lon);
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}
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}
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function showGeocoderResults_Empty(marker_id) {
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document.getElementById('information-box-headline').innerHTML = OSRM.loc("SEARCH_RESULTS")+":";
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if(marker_id == OSRM.C.SOURCE_LABEL)
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document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("NO_RESULTS_FOUND_SOURCE")+".<p>";
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else if(marker_id == OSRM.C.TARGET_LABEL)
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document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("NO_RESULTS_FOUND_TARGET")+".<p>";
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else
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document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("NO_RESULTS_FOUND")+".<p>";
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}
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function showGeocoderResults_Timeout() {
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document.getElementById('information-box-headline').innerHTML = OSRM.loc("SEARCH_RESULTS")+":";
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document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("TIMED_OUT")+".<p>";
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}
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// - [upcoming feature: reverse geocoding (untested) ] -
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// update address in input boxes
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function updateAddress(marker_id, do_fallback_to_lat_lng) {
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var lat = null;
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var lng = null;
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if(marker_id == OSRM.C.SOURCE_LABEL && OSRM.G.markers.hasSource()) {
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lat = OSRM.G.markers.route[0].getPosition().lat;
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lng = OSRM.G.markers.route[0].getPosition().lng;
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} else if(marker_id == OSRM.C.TARGET_LABEL && OSRM.G.markers.hasTarget() ) {
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lat = OSRM.G.markers.route[OSRM.G.markers.route.length-1].getPosition().lat;
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lng = OSRM.G.markers.route[OSRM.G.markers.route.length-1].getPosition().lng;
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} else
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return;
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var call = OSRM.DEFAULTS.HOST_REVERSE_GEOCODER_URL + "?format=json" + "&lat=" + lat + "&lon=" + lng;
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OSRM.JSONP.call( call, processReverseGeocoderResponse, processReverseGeocoderResponse_Timeout, OSRM.DEFAULTS.JSONP_TIMEOUT, "reverse_geocoder_"+marker_id, {marker_id:marker_id, do_fallback: do_fallback_to_lat_lng} );
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}
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// processing JSONP response of reverse geocoder
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function processReverseGeocoderResponse_Timeout(response, parameters) {
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if(parameters.do_fallback)
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updateLocation(parameters.marker_id);
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}
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function processReverseGeocoderResponse(response, parameters) {
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if(!response) {
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processReverseGeocoderResponse_Timeout(response, parameters);
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return;
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}
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if(response.address == undefined) {
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processReverseGeocoderResponse_Timeout(response, parameters);
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return;
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}
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// build reverse geocoding address
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var used_address_data = 0;
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var address = "";
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if( response.address.road) {
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address += response.address.road;
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used_address_data++;
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}
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if( response.address.city ) {
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if( used_address_data > 0 )
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address += ", ";
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address += response.address.city;
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used_address_data++;
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} else if( response.address.village ) {
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if( used_address_data > 0 )
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address += ", ";
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address += response.address.village;
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used_address_data++;
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}
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if( used_address_data < 2 && response.address.country ) {
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if( used_address_data > 0 )
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address += ", ";
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address += response.address.country;
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used_address_data++;
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}
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if( used_address_data == 0 ) {
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processReverseGeocoderResponse_Timeout(response, parameters);
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return;
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}
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// add result to DOM
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if(parameters.marker_id == OSRM.C.SOURCE_LABEL && OSRM.G.markers.hasSource() ) {
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document.getElementById("input-source-name").value = address;
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OSRM.G.markers.route[0].dirty_move = false;
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OSRM.G.markers.route[0].dirty_type = false;
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} else if(parameters.marker_id == OSRM.C.TARGET_LABEL && OSRM.G.markers.hasTarget() ) {
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document.getElementById("input-target-name").value = address;
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OSRM.G.markers.route[OSRM.G.markers.route.length-1].dirty_move = false;
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OSRM.G.markers.route[OSRM.G.markers.route.length-1].dirty_type = false;
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}
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}
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