001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.io.remotecontrol.handler; 003 004import static org.openstreetmap.josm.tools.I18n.tr; 005 006import java.awt.Point; 007import java.util.Collections; 008import java.util.Map; 009 010import org.openstreetmap.josm.Main; 011import org.openstreetmap.josm.actions.AutoScaleAction; 012import org.openstreetmap.josm.command.AddCommand; 013import org.openstreetmap.josm.data.coor.LatLon; 014import org.openstreetmap.josm.data.osm.Node; 015import org.openstreetmap.josm.data.osm.OsmPrimitive; 016import org.openstreetmap.josm.gui.util.GuiHelper; 017import org.openstreetmap.josm.io.remotecontrol.AddTagsDialog; 018import org.openstreetmap.josm.io.remotecontrol.PermissionPrefWithDefault; 019 020/** 021 * Handler for add_node request. 022 */ 023public class AddNodeHandler extends RequestHandler { 024 025 /** 026 * The remote control command name used to add a node. 027 */ 028 public static final String command = "add_node"; 029 030 private double lat; 031 private double lon; 032 033 @Override 034 protected void handleRequest() { 035 GuiHelper.runInEDTAndWait(new Runnable() { 036 @Override public void run() { 037 addNode(args); 038 } 039 }); 040 } 041 042 @Override 043 public String[] getMandatoryParams() { 044 return new String[] {"lat", "lon"}; 045 } 046 047 @Override 048 public String[] getOptionalParams() { 049 return new String[] {"addtags"}; 050 } 051 052 @Override 053 public String getUsage() { 054 return "adds a node (given by its latitude and longitude) to the current dataset"; 055 } 056 057 @Override 058 public String[] getUsageExamples() { 059 return new String[] { 060 "/add_node?lat=11&lon=22", 061 "/add_node?lon=13.3&lat=53.2&addtags=natural=tree|name=%20%20%20==Great%20Oak==" 062 }; 063 } 064 065 @Override 066 public String getPermissionMessage() { 067 return tr("Remote Control has been asked to create a new node.") + 068 "<br>" + tr("Coordinates: ") + args.get("lat") + ", " + args.get("lon"); 069 } 070 071 @Override 072 public PermissionPrefWithDefault getPermissionPref() { 073 return PermissionPrefWithDefault.CREATE_OBJECTS; 074 } 075 076 /** 077 * Adds a node, implements the GET /add_node?lon=...&lat=... request. 078 * @param args request arguments 079 */ 080 private void addNode(Map<String, String> args) { 081 082 // Parse the arguments 083 Main.info("Adding node at (" + lat + ", " + lon + ')'); 084 085 // Create a new node 086 LatLon ll = new LatLon(lat, lon); 087 088 Node node = null; 089 090 if (Main.isDisplayingMapView()) { 091 Point p = Main.map.mapView.getPoint(ll); 092 node = Main.map.mapView.getNearestNode(p, OsmPrimitive.isUsablePredicate); 093 if (node != null && node.getCoor().greatCircleDistance(ll) > Main.pref.getDouble("remotecontrol.tolerance", 0.1)) { 094 node = null; // node is too far 095 } 096 } 097 098 if (node == null) { 099 node = new Node(ll); 100 // Now execute the commands to add this node. 101 Main.main.undoRedo.add(new AddCommand(node)); 102 } 103 104 Main.main.getCurrentDataSet().setSelected(node); 105 if (PermissionPrefWithDefault.CHANGE_VIEWPORT.isAllowed()) { 106 AutoScaleAction.autoScale("selection"); 107 } else { 108 Main.map.mapView.repaint(); 109 } 110 // parse parameter addtags=tag1=value1|tag2=vlaue2 111 AddTagsDialog.addTags(args, sender, Collections.singleton(node)); 112 } 113 114 @Override 115 protected void validateRequest() throws RequestHandlerBadRequestException { 116 try { 117 lat = Double.parseDouble(args != null ? args.get("lat") : ""); 118 lon = Double.parseDouble(args != null ? args.get("lon") : ""); 119 } catch (NumberFormatException e) { 120 throw new RequestHandlerBadRequestException("NumberFormatException ("+e.getMessage()+')', e); 121 } 122 if (!Main.main.hasEditLayer()) { 123 throw new RequestHandlerBadRequestException(tr("There is no layer opened to add node")); 124 } 125 } 126}