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osrm-backend/WebContent/geocoder.js
DennisSchiefer 22dda2b285 added new gui buttons for opening/closing, 
route button now works,
more precise error message when geocoder does not find a result,
added maximum input length for text boxes
2012-03-14 17:42:14 +01:00

195 lines
9.1 KiB
JavaScript
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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
or see http://www.gnu.org/licenses/agpl.txt.
*/
// OSRM geocoding routines
// [geocoder query, management and display of geocoder results]
// [TODO: better separation of GUI and geocoding routines, reverse geocoding]
// some constants
OSRM.GEOCODE_POST = 'http://nominatim.openstreetmap.org/search?format=json';
OSRM.SOURCE_MARKER_LABEL = "source";
OSRM.TARGET_MARKER_LABEL = "target";
// update geo coordinates in input boxes
function updateLocation(marker_id) {
if (marker_id == OSRM.SOURCE_MARKER_LABEL) {
document.getElementById("input-source-name").value = my_markers.route[0].getPosition().lat.toFixed(6) + ", " + my_markers.route[0].getPosition().lng.toFixed(6);
} else if (marker_id == OSRM.TARGET_MARKER_LABEL) {
document.getElementById("input-target-name").value = my_markers.route[my_markers.route.length-1].getPosition().lat.toFixed(6) + ", " + my_markers.route[my_markers.route.length-1].getPosition().lng.toFixed(6);
}
}
// process input request and call geocoder if needed
function callGeocoder(marker_id, query) {
//geo coordinates given -> go directly to drawing results
if(query.match(/^\s*[-+]?[0-9]*\.?[0-9]+\s*[,;]\s*[-+]?[0-9]*\.?[0-9]+\s*$/)){
var coord = query.split(/[,;]/);
onclickGeocoderResult(marker_id, coord[0], coord[1]);
// updateReverseGeocoder(marker_id);
return;
}
//build request
if (marker_id == OSRM.SOURCE_MARKER_LABEL) {
var src= OSRM.GEOCODE_POST + "&q=" + query;
OSRM.JSONP.call( src, showGeocoderResults_Source, showGeocoderResults_Timeout, OSRM.DEFAULTS.JSONP_TIMEOUT, "geocoder_source" );
} else if (marker_id == OSRM.TARGET_MARKER_LABEL) {
var src = OSRM.GEOCODE_POST + "&q=" + query;
OSRM.JSONP.call( src, showGeocoderResults_Target, showGeocoderResults_Timeout, OSRM.DEFAULTS.JSONP_TIMEOUT, "geocoder_target" );
}
}
// helper function for clicks on geocoder search results
function onclickGeocoderResult(marker_id, lat, lon) {
var index;
if( marker_id == OSRM.SOURCE_MARKER_LABEL )
index = my_markers.setSource( new L.LatLng(lat, lon) );
else if( marker_id == OSRM.TARGET_MARKER_LABEL )
index = my_markers.setTarget( new L.LatLng(lat, lon) );
else
index = -1; // search via positions not yet implemented
my_markers.route[index].show();
my_markers.route[index].centerView();
getRoute(OSRM.FULL_DESCRIPTION);
}
// process JSONP response of geocoder
// (with wrapper functions for source/target jsonp)
function showGeocoderResults_Source(response) { showGeocoderResults(OSRM.SOURCE_MARKER_LABEL, response); }
function showGeocoderResults_Target(response) { showGeocoderResults(OSRM.TARGET_MARKER_LABEL, response); }
function showGeocoderResults(marker_id, response) {
if(response){
if(response.length == 0) {
showGeocoderResults_Empty(marker_id);
return;
}
var html = "";
html += '<table class="results-table">';
for(var i=0; i < response.length; i++){
var result = response[i];
//odd or even ?
var rowstyle='results-odd';
if(i%2==0) { rowstyle='results-even'; }
html += '<tr class="'+rowstyle+'">';
html += '<td class="result-counter"><span">'+(i+1)+'.</span></td>';
html += '<td class="result-items">';
if(result.display_name){
html += '<div class="result-item" onclick="onclickGeocoderResult(\''+marker_id+'\', '+result.lat+', '+result.lon+');">'+result.display_name+'</div>';
}
html += "</td></tr>";
}
html += '</table>';
document.getElementById('information-box-headline').innerHTML = OSRM.loc("SEARCH_RESULTS")+":";
document.getElementById('information-box').innerHTML = html;
onclickGeocoderResult(marker_id, response[0].lat, response[0].lon);
}
}
function showGeocoderResults_Empty(marker_id) {
document.getElementById('information-box-headline').innerHTML = OSRM.loc("SEARCH_RESULTS")+":";
if(marker_id == OSRM.SOURCE_MARKER_LABEL)
document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("NO_RESULTS_FOUND_SOURCE")+".<p>";
else if(marker_id == OSRM.TARGET_MARKER_LABEL)
document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("NO_RESULTS_FOUND_TARGET")+".<p>";
else
document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("NO_RESULTS_FOUND")+".<p>";
}
function showGeocoderResults_Timeout() {
document.getElementById('information-box-headline').innerHTML = OSRM.loc("SEARCH_RESULTS")+":";
document.getElementById('information-box').innerHTML = "<br><p style='font-size:14px;font-weight:bold;text-align:center;'>"+OSRM.loc("TIMED_OUT")+".<p>";
}
// - [upcoming feature: reverse geocoding] -
//OSRM.REVERSE_GEOCODE_POST = 'http://nominatim.openstreetmap.org/reverse?format=json';
//
//function updateReverseGeocoder(marker_id) {
// if (marker_id == OSRM.SOURCE_MARKER_LABEL) {
// document.getElementById("input-source-name").value = my_markers.route[0].getPosition().lat.toFixed(6) + ", " + my_markers.route[0].getPosition().lng.toFixed(6);
// callReverseGeocoder("source", my_markers.route[0].getPosition().lat, my_markers.route[0].getPosition().lng);
// } else if (marker_id == OSRM.TARGET_MARKER_LABEL) {
// document.getElementById("input-target-name").value = my_markers.route[my_markers.route.length-1].getPosition().lat.toFixed(6) + ", " + my_markers.route[my_markers.route.length-1].getPosition().lng.toFixed(6);
// callReverseGeocoder("target", my_markers.route[my_markers.route.length-1].getPosition().lat, my_markers.route[my_markers.route.length-1].getPosition().lng);
// }
//}
//function updateLocations() {
// if( my_markers.route[0] && my_markers.route[0].label == OSRM.SOURCE_MARKER_LABEL) {
// document.getElementById("input-source-name").value = my_markers.route[0].getPosition().lat.toFixed(6) + ", " + my_markers.route[0].getPosition().lng.toFixed(6);
// callReverseGeocoder("source", my_markers.route[0].getPosition().lat, my_markers.route[0].getPosition().lng);
// //OSRM.debug.log("[call1] reverse geocoder");
// }
//
// if( my_markers.route[my_markers.route.length-1] && my_markers.route[ my_markers.route.length-1 ].label == OSRM.TARGET_MARKER_LABEL) {
// document.getElementById("input-target-name").value = my_markers.route[my_markers.route.length-1].getPosition().lat.toFixed(6) + ", " + my_markers.route[my_markers.route.length-1].getPosition().lng.toFixed(6);
// callReverseGeocoder("target", my_markers.route[my_markers.route.length-1].getPosition().lat, my_markers.route[my_markers.route.length-1].getPosition().lng);
// }
//}
//
//
//function timeout_ReverseGeocoder() {
// //OSRM.debug.log("[timeout] reverse geocoder");
//}
//
////prepare request and call reverse geocoder
//function callReverseGeocoder(marker_id, lat, lon) {
// //build request
// if (marker_id == OSRM.SOURCE_MARKER_LABEL) {
// var src= OSRM.REVERSE_GEOCODE_POST + "&lat=" + lat + "&lon=" + lon;
// OSRM.JSONP.call( src, showReverseGeocoderResults_Source, timeout_ReverseGeocoder, OSRM.DEFAULTS.JSONP_TIMEOUT, "reverse_geocoder_source" );
// //OSRM.debug.log("[call2] reverse geocoder");
// } else if (marker_id == OSRM.TARGET_MARKER_LABEL) {
// var src = OSRM.REVERSE_GEOCODE_POST + "&lat=" + lat + "&lon=" + lon;
// OSRM.JSONP.call( src, showReverseGeocoderResults_Target, timeout_ReverseGeocoder, OSRM.DEFAULTS.JSONP_TIMEOUT, "reverse_geocoder_target" );
// }
//}
////processing JSONP response of reverse geocoder
////(with wrapper functions for source/target jsonp)
//function showReverseGeocoderResults_Source(response) { showReverseGeocoderResults(OSRM.SOURCE_MARKER_LABEL, response); }
//function showReverseGeocoderResults_Target(response) { showReverseGeocoderResults(OSRM.TARGET_MARKER_LABEL, response); }
//function showReverseGeocoderResults(marker_id, response) {
// //OSRM.debug.log("[inner] reverse geocoder");
// if(response){
// if(response.address == undefined)
// return;
//
// var address = "";
// if( response.address.road)
// address += response.address.road;
// if( response.address.city) {
// if( response.address.road)
// address += ", ";
// address += response.address.city;
// }
// if( address == "" )
// return;
//
// if(marker_id == OSRM.SOURCE_MARKER_LABEL)
// document.getElementById("input-source-name").value = address;
// else if(marker_id == OSRM.TARGET_MARKER_LABEL)
// document.getElementById("input-target-name").value = address;
// }
//}
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