Subversion Repositories eFlore/Archives.cel-v1

/*

 * Copyright 2006 Google Inc.

 *

 * Licensed under the Apache License, Version 2.0 (the "License"); you may not

 * use this file except in compliance with the License. You may obtain a copy of

 * the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

 * License for the specific language governing permissions and limitations under

 * the License.

 */

package org.tela_botanica.client;

import com.google.gwt.http.client.URL;

import com.google.gwt.json.client.JSONArray;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.json.client.JSONString;

import com.google.gwt.json.client.JSONValue;

import com.google.gwt.user.client.HTTPRequest;

import com.google.gwt.user.client.ResponseTextHandler;

import net.mygwt.ui.client.data.Model;

import net.mygwt.ui.client.viewer.IAsyncContentCallback;

import net.mygwt.ui.client.viewer.IAsyncTreeContentProvider;

import net.mygwt.ui.client.viewer.IElementComparer;

import net.mygwt.ui.client.viewer.ISelectionChangedListener;

import net.mygwt.ui.client.viewer.ModelLabelProvider;

import net.mygwt.ui.client.viewer.SelectionChangedEvent;

import net.mygwt.ui.client.viewer.TreeViewer;

import net.mygwt.ui.client.viewer.Viewer;

import net.mygwt.ui.client.widget.ExpandBar;

import net.mygwt.ui.client.widget.ExpandItem;

import net.mygwt.ui.client.widget.tree.Tree;

public class LocationFilterView {

		private static final String VALUE_UNKNOWN = "Inconnu";

		private String user;

		private String serviceBaseUrl = null;

		private String id_location = "all";

		private String location = "all";

		private String lieudit = "all";

		private Mediator mediator = null;

	    private SALB[] salbs=null;

	    private TALB[] talbs=null;

	    private FALB[] falbs=null;

		private Model root = null;

		private RALB ralb = null;

		private Tree tree = null;

		private TreeViewer viewer=null;

		public LocationFilterView(Mediator med,InventoryFilterView inventoryFilterView) {

			mediator=med;

			user=mediator.getUser();

			serviceBaseUrl = mediator.getServiceBaseUrl();

			mediator.registerLocationFilterView(this);

			initTree();

			ExpandItem locationfilter = new ExpandItem();

			locationfilter.setText("Lieux");

			ExpandBar expandBar=inventoryFilterView.getExpandBar();

			locationfilter.getContainer().add(tree);

			expandBar.add(locationfilter);

			locationfilter.setExpanded(true);

  }

 // Initialisation noeud de base

  void initTree() {

	  // Enregistrement Mise à jour asynchrone

	   IAsyncTreeContentProvider cp = new IAsyncTreeContentProvider() {

	   public Object[] getElements(Object input) {

		      Model m = (Model) input;

		       return m.getChildren().toArray();

	   }

	   public Object getParent(Object element) {

		   return ((Model) element).getParent();

	   }

	   public boolean hasChildren(Object parent) {

	          if (parent instanceof FALB) {  // Station

	        	  return false;

		      }

	          else  {

	        	  if (parent instanceof SALB) {  // Departement

	        		  if (((SALB)parent).toString().compareTo(VALUE_UNKNOWN)==0)

	        			  return false;

	        		  else

	        			  return true;

	        	  }

	        	  else {

	        		  return true;

	        	  }

	          }

	    }

	    public void getChildren(final Object parent, final IAsyncContentCallback callback) {

	          if (parent instanceof SALB) {

	        	  // Departement + commune

		           HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user + "/"

							+ ((SALB) parent).getAsString("path"),

							new ResponseTextHandler() {

								public void onCompletion(String str) {

									JSONValue jsonValue = JSONParser.parse(str);

									JSONArray jsonArray;

									JSONArray jsonArrayNested;

									int i=0;

									if ((jsonArray = jsonValue.isArray()) != null) {

										int arraySize = jsonArray.size();

										talbs=new TALB[arraySize];

										for (i = 0; i < arraySize; ++i) {

											if ((jsonArrayNested = jsonArray.get(i).isArray()) != null) {

												String dep=Util.toCelString(((JSONString)jsonArrayNested.get(0)).toString());

												if (dep.compareTo("000null")==0) dep=VALUE_UNKNOWN;

												talbs[i]=new TALB((SALB) parent,dep);

											}

										}

										callback.setElements(talbs);

									}

								}

							});

		         }

	          else if (parent instanceof TALB) {

	        	  // Commune + station

		           HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user + "/"

							+ ((TALB) parent).getAsString("path") ,

							new ResponseTextHandler() {

								public void onCompletion(String str) {

									JSONValue jsonValue = JSONParser.parse(str);

									JSONArray jsonArray;

									JSONArray jsonArrayNested;

									int i=0;

									if ((jsonArray = jsonValue.isArray()) != null) {

										int arraySize = jsonArray.size();

										falbs=new FALB[arraySize];

										for (i = 0; i < arraySize; ++i) {

											if ((jsonArrayNested = jsonArray.get(i).isArray()) != null) {

												String com=Util.toCelString(((JSONString)jsonArrayNested.get(0)).toString());

												if (com.compareTo("000null")==0) com=VALUE_UNKNOWN;

												falbs[i]=new FALB((TALB) parent, com);

											}

										}

										callback.setElements(falbs);

									}

								}

							});

	          }

	          	else if (parent instanceof RALB) {

	          		 // Rafraichissement Racine

			           HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user ,

								new ResponseTextHandler() {

									public void onCompletion(String str) {

										JSONValue jsonValue = JSONParser.parse(str);

										JSONArray jsonArray;

										JSONArray jsonArrayNested;

										int i=0;

										if ((jsonArray = jsonValue.isArray()) != null) {

											int arraySize = jsonArray.size();

											salbs=new SALB[arraySize];

											for (i = 0; i < arraySize; ++i) {

												if ((jsonArrayNested = jsonArray.get(i).isArray()) != null) {

													String all=Util.toCelString(((JSONString)jsonArrayNested.get(0)).toString());

													if (all.compareTo("000null")==0) all=VALUE_UNKNOWN;

													salbs[i]=new SALB(all);

												}

											}

											callback.setElements(salbs);

											Model m=new Model();

											m.set("name",id_location);

											viewer.setExpanded(m,true);

										}

									}

								});

	          	}

	    	}

		    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {

		    }

		 };

		 tree = new Tree();

		 viewer = new TreeViewer(tree);

		 viewer.setContentProvider(cp);

		 viewer.setLabelProvider(new ModelLabelProvider());

		 viewer.setComparer(new IElementComparer() {

			 public boolean equals(Object a, Object b) {

				 if ((a==null) || b==null)

					 return false;

				 if (((Model) a).getAsString("name").compareTo(((Model) b).getAsString("name"))==0) {

					 return true;

				 }

				 else return false;

			 }

		 }

		 );

		   viewer.addSelectionListener(new ISelectionChangedListener() {

			        public void selectionChanged(SelectionChangedEvent se) {

			          Model m = (Model) se.getSelection().getFirstElement();

			       //   Info.show("Selection Changed", "{0} was selected", m.getAsString("path"));

			          if (m instanceof TALB) { // Commune

			        	  location=m.getAsString("name");

			        	  if (location.compareTo(VALUE_UNKNOWN)==0) location="000null";

			        	  id_location=m.getAsString("salb");

			        	  if (id_location.compareTo(VALUE_UNKNOWN)==0) id_location="000null";

			        	  lieudit="all";

			        	  mediator.onLocationSelected(id_location,location,lieudit);

			          }

			          else

				          if (m instanceof FALB) { // Station

				        	  id_location=m.getAsString("salb");

				        	  if (id_location.compareTo(VALUE_UNKNOWN)==0) id_location="000null";

				        	  location=m.getAsString("talb");

				        	  if (location.compareTo(VALUE_UNKNOWN)==0) location="000null";

				        	  lieudit=m.getAsString("name");

				        	  if (lieudit.compareTo(VALUE_UNKNOWN)==0) lieudit="000null";

				        	  mediator.onLocationSelected(id_location,location,lieudit);

				          }

				          else

				          if (m instanceof SALB) { // Departement

				        	  id_location=m.getAsString("name");

				        	  if (id_location.compareTo(VALUE_UNKNOWN)==0) id_location="000null";

				        	  location="all";

				        	  lieudit="all";

				        	  mediator.onLocationSelected(id_location,location,lieudit);

				          }

			          		if (m instanceof RALB) { // Pays

			          				id_location="all";

			          				location="all";

			          				lieudit="all";

			          				mediator.onLocationSelected(id_location,location,lieudit);

			          		}

			        }

		});

		 // Initialisation premier niveau (doublon obligatoire avec rafraichissement asynchrone)

		 root = new Model();

		 HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user ,

					new ResponseTextHandler() {

						public void onCompletion(String str) {

							JSONValue jsonValue = JSONParser.parse(str);

							JSONArray jsonArray;

							JSONArray jsonArrayNested;

							int i=0;

							if ((jsonArray = jsonValue.isArray()) != null) {

								int arraySize = jsonArray.size();

								salbs=new SALB[arraySize];

								ralb = new RALB("France");

								for (i = 0; i < arraySize; ++i) {

									if ((jsonArrayNested = jsonArray.get(i).isArray()) != null) {

										String all=Util.toCelString(((JSONString)jsonArrayNested.get(0)).toString());

										if (all.compareTo("000null")==0) all=VALUE_UNKNOWN;

										salbs[i]=new SALB(all);

										ralb.add(salbs[i]);

									}

								}

								root.add(ralb);

								viewer.setInput(root);

							}

						}

					});

      }

		public void setLocation(String location) {

			this.location = location;

		}

		public void setIDLocation(String id_location) {

			this.id_location = id_location;

		}

		public void setLieudit(String lieudit) {

			this.lieudit = lieudit;

		}

		public void setUser(String user) {

			this.user = user;

		}

		private class RALB extends Model {  // Root Administrative level boundaries (pays)

			  public RALB(String name) {

			    set("name", name);

			    set("path", URL.encodeComponent(name));

			  }

			  public String toString() {

			    return getAsString("name");

			  }

		}

		private class SALB extends Model {  // Second Administrative level boundaries (departerment)

			  public SALB(String name) {

			    set("name", name);

			    set("path", URL.encodeComponent(name));

			  }

			  public String toString() {

				    return getAsString("name");

			  }

		}

		private class TALB extends Model {  // Tierce Administrative level boundaries (Commune)

			  public TALB(SALB parent, String name) {

			    set("name", name);

			    set("salb", parent.get("name"));

			    set("path", parent.get("path")+"/"+URL.encodeComponent(name));

			  }

			  public String toString() {

				    return getAsString("name");

			  }

		}

		private class FALB extends Model {  // Forth Administrative level boundaries (Station)

			  public FALB(TALB parent,String name) {

			    set("name", name);

			    set("salb", parent.get("salb"));

			    set("talb", parent.get("name"));

			    set("path", parent.get("path")+"/"+URL.encodeComponent(name));

			  }

			  public String toString() {

				    return getAsString("name");

			  }

		}

		public void update() {

			Model m=new Model();

			m.set("name",id_location);

			if (viewer.findItem(m)!=null) {

				viewer.refresh(m); // Rafraichissement branche departemental

			}

			else { // Pas de branche departementale ? : rafraichissement total

				Model r=new Model();

				r.set("name","France");

				viewer.refresh(r);

			}

		}

}