archive/net.sourceforge.phpeclipse.news/src/net/sourceforge/phpeclipse/news/search/SearchDialog.java

   1 /*
   2  * Created on 25 janv. 2004
   3  *
   4  * (c)2004 Jérôme Nègre - http://www.jnegre.org/
   5  */
   6
   7 package net.sourceforge.phpeclipse.news.search;
   8
   9 import java.net.MalformedURLException;
  10 import java.util.ArrayList;
  11 import java.util.Hashtable;
  12 import java.util.Iterator;
  13 import java.util.Vector;
  14
  15 import net.sourceforge.phpeclipse.news.Channel;
  16
  17 import org.apache.xmlrpc.XmlRpcClient;
  18 import org.eclipse.jface.dialogs.Dialog;
  19 import org.eclipse.jface.dialogs.IDialogConstants;
  20 import org.eclipse.swt.SWT;
  21 import org.eclipse.swt.events.SelectionAdapter;
  22 import org.eclipse.swt.events.SelectionEvent;
  23 import org.eclipse.swt.graphics.Cursor;
  24 import org.eclipse.swt.layout.GridData;
  25 import org.eclipse.swt.layout.GridLayout;
  26 import org.eclipse.swt.widgets.Button;
  27 import org.eclipse.swt.widgets.Composite;
  28 import org.eclipse.swt.widgets.Control;
  29 import org.eclipse.swt.widgets.Group;
  30 import org.eclipse.swt.widgets.Label;
  31 import org.eclipse.swt.widgets.List;
  32 import org.eclipse.swt.widgets.Shell;
  33 import org.eclipse.swt.widgets.Text;
  34
  35 /**
  36  * @author Jérôme Nègre
  37  *
  38  */
  39 public class SearchDialog extends Dialog {
  40
  41     private Label statusBar;
  42     private Text searchText;
  43     private List list;
  44     private Text name;
  45     private Text siteUrl;
  46     private Text feedUrl;
  47     private Text version;
  48     private Text description;
  49
  50     private ArrayList resultChannels = new ArrayList();
  51
  52     private XmlRpcClient xmlRpcClient;
  53
  54     /**
  55      * @param parentShell
  56      */
  57     public SearchDialog(Shell parentShell) {
  58         super(parentShell);
  59         this.setShellStyle(SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MODELESS);
  60     }
  61
  62     protected void configureShell(Shell newShell) {
  63         super.configureShell(newShell);
  64         newShell.setText("Search using http://www.syndic8.com/");
  65     }
  66
  67     /**
  68      * Adds the controls to the dialog
  69      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
  70      */
  71     protected Control createDialogArea(Composite parent) {
  72         Composite composite = (Composite)super.createDialogArea(parent);
  73         GridLayout gl = (GridLayout)composite.getLayout();
  74         gl.numColumns = 4;
  75
  76         //Text to enter the searched words
  77         searchText = new Text(composite,SWT.BORDER);
  78         GridData gd = new GridData(GridData.FILL_HORIZONTAL);
  79         gd.horizontalSpan = 3;
  80         searchText.setLayoutData(gd);
  81         //Button "search!"
  82         Button searchButton = new Button(composite,0);
  83         searchButton.setText("Search!");
  84         searchButton.addSelectionListener(new SelectionAdapter() {
  85             public void widgetSelected(SelectionEvent e) {
  86                 //TODO use a worker
  87                 Cursor waitCursor = new Cursor(SearchDialog.this.getContents().getDisplay(), SWT.CURSOR_WAIT);
  88                 try {
  89                         SearchDialog.this.getContents().setCursor(waitCursor);
  90                     SearchDialog.this.searchNow();
  91                 } catch (Exception x) {
  92                     setStatusMessage("Error: "+x.getMessage());
  93                 } finally {
  94                         SearchDialog.this.getContents().setCursor(null);
  95                         waitCursor.dispose();
  96                 }
  97             }
  98         });
  99         //List for the titles of the feeds
 100         list = new List(composite,SWT.BORDER|SWT.H_SCROLL|SWT.V_SCROLL|SWT.SINGLE);
 101         gd = new GridData(GridData.FILL_BOTH);
 102         list.setLayoutData(gd);
 103         list.addSelectionListener(new SelectionAdapter() {
 104             public void widgetSelected(SelectionEvent e) {
 105                 SearchDialog.this.showFieldDetails((Hashtable)((ArrayList)list.getData()).get(list.getSelectionIndex()));
 106             }
 107         });
 108
 109         //Description of the selected feed
 110         Group group = new Group(composite,0);
 111         group.setText("Selected Feed");
 112         gd = new GridData(GridData.FILL_BOTH);
 113         gd.horizontalSpan = 3;
 114         group.setLayoutData(gd);
 115         group.setLayout(new GridLayout(2,false));
 116         //name
 117         new Label(group,0).setText("Name:");
 118         name = new Text(group,SWT.BORDER|SWT.READ_ONLY);
 119         name.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 120         //site url
 121         new Label(group,0).setText("Site URL:");
 122         siteUrl = new Text(group,SWT.BORDER|SWT.READ_ONLY);
 123         siteUrl.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 124         //feed url
 125         new Label(group,0).setText("Feed URL:");
 126         feedUrl = new Text(group,SWT.BORDER|SWT.READ_ONLY);
 127         feedUrl.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 128         //RSS version
 129         new Label(group,0).setText("RSS version:");
 130         version = new Text(group,SWT.BORDER|SWT.READ_ONLY);
 131         version.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 132         //description
 133         new Label(group,0).setText("Description:");
 134         description = new Text(group,SWT.BORDER|SWT.READ_ONLY|SWT.MULTI|SWT.H_SCROLL|SWT.V_SCROLL|SWT.WRAP);
 135         description.setLayoutData(new GridData(GridData.FILL_BOTH));
 136
 137         //status bar
 138         statusBar = new Label(composite,SWT.NONE);
 139         gd = new GridData(GridData.FILL_HORIZONTAL);
 140         gd.horizontalSpan = 4;
 141         statusBar.setLayoutData(gd);
 142         setStatusMessage("Ready.");
 143         return composite;
 144     }
 145
 146     private XmlRpcClient getXmlRpcClient() throws MalformedURLException {
 147         if(this.xmlRpcClient == null) {
 148             this.xmlRpcClient = new XmlRpcClient("http://www.syndic8.com/xmlrpc.php");
 149         }
 150         return this.xmlRpcClient;
 151     }
 152
 153     /**
 154      *
 155      */
 156     protected void searchNow() throws Exception {
 157       clearFeedList();
 158       setStatusMessage("Connecting...");
 159       XmlRpcClient client = getXmlRpcClient();
 160       //Get the list of ids
 161       Vector args = new Vector();
 162       args.add(searchText.getText());
 163       args.add("sitename");
 164       //args.add(new Integer(30));
 165       Vector ids = (Vector)client.execute("syndic8.FindFeeds",args);
 166       setStatusMessage("Found "+ids.size()+" result(s), asking for details...");
 167       //Get the descriptions of the feeds
 168       Vector fields = new Vector();
 169       fields.add("sitename");
 170       fields.add("siteurl");
 171       fields.add("dataurl");
 172       fields.add("rss_version");
 173       fields.add("description");
 174       args.clear();
 175       args.add(ids);
 176       args.add(fields);
 177       Vector infos = (Vector)client.execute("syndic8.GetFeedInfo",args);
 178       setStatusMessage("Showing details...");
 179       Iterator iterator = infos.iterator();
 180       while(iterator.hasNext()) {
 181           Hashtable info = (Hashtable)iterator.next();
 182           addFeedInList(info);
 183       }
 184       setStatusMessage("Ready.");
 185     }
 186
 187     protected void clearFeedList() {
 188         list.removeAll();
 189         showFieldDetails(null);
 190         list.setData(new ArrayList());
 191     }
 192
 193     protected void showFieldDetails(Hashtable info) {
 194         name.setText(info==null?"":(String)info.get("sitename"));
 195         siteUrl.setText(info==null?"":(String)info.get("siteurl"));
 196         feedUrl.setText(info==null?"":(String)info.get("dataurl"));
 197         version.setText(info==null?"":(String)info.get("rss_version"));
 198         description.setText(info==null?"":(String)info.get("description"));
 199     }
 200
 201     protected void addFeedInList(Hashtable info) {
 202         String name = (String)info.get("sitename");
 203         String dataurl = (String)info.get("dataurl");
 204         if("".equals(name) || "".equals(dataurl)) {
 205             //skip it
 206             return;
 207         }
 208         ArrayList al = (ArrayList)list.getData();
 209         al.add(info);
 210         list.add(name);
 211     }
 212
 213     protected void setStatusMessage(String message) {
 214         statusBar.setText(message);
 215         //TODO remove next line
 216         System.out.println(message);
 217     }
 218
 219     protected void createButtonsForButtonBar(Composite parent) {
 220         createButton(parent,IDialogConstants.OPEN_ID,"Add Selected",false);
 221         createButton(parent,IDialogConstants.OK_ID,IDialogConstants.OK_LABEL,false);
 222     }
 223
 224         protected void buttonPressed(int buttonId) {
 225                 super.buttonPressed(buttonId);
 226                 if(buttonId == IDialogConstants.OPEN_ID) {
 227                         String name = this.name.getText();
 228                         String url = this.feedUrl.getText();
 229                         if(!"".equals(name) && !"".equals(url)) {
 230                                 resultChannels.add(new Channel(name, url));
 231                         }
 232                 }
 233         }
 234
 235         public Channel[] getChannels() {
 236                 return (Channel[])resultChannels.toArray(new Channel[]{});
 237         }
 238 }