support metadata edit

main/src/com/google/refine/commands/project/SetProjectMetaDataCommand.java

@@ -0,0 +1,52 @@
+package com.google.refine.commands.project;
+
+import java.io.IOException;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONException;
+import org.json.JSONTokener;
+import org.json.JSONWriter;
+
+import com.google.refine.ProjectManager;
+import com.google.refine.ProjectMetadata;
+import com.google.refine.commands.Command;
+import com.google.refine.model.Project;
+
+public class SetProjectMetaDataCommand extends Command {
+    @Override
+    public void doPost(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        
+        Project project = request.getParameter("project") != null ? getProject(request) : null;
+        String metaName = request.getParameter("name");
+        String valueString = request.getParameter("value");
+        ProjectMetadata meta = null;
+        
+        if (project == null) {
+            respond(response, "{ \"code\" : \"error\", \"message\" : \"Project cannot be found\" }");
+            return;
+        }
+        
+        meta = project.getMetadata(); 
+        try {
+            response.setCharacterEncoding("UTF-8");
+            response.setHeader("Content-Type", "application/json");
+            JSONWriter writer = new JSONWriter(response.getWriter());
+            
+            Object o = valueString == null ? null : new JSONTokener(valueString).nextValue();
+            
+            meta.setAnyField(metaName, valueString);
+            ProjectManager.singleton.saveMetadata(meta, project.id);
+            
+            respond(response, "{ \"code\" : \"ok\" }");
+        } catch (JSONException e) {
+            respondException(response, e);
+        } catch (Exception e) {
+            respondException(response, e);
+        }
+    }
+
+}

main/webapp/modules/core/scripts/index/edit-metadata-dialog.js

@@ -0,0 +1,81 @@
+
+
+function EditMetadataDialog(metaData) {
+  this._metaDataUIs = [];
+  this._metaData = metaData;
+  
+  this._MetaDataUI = function(tr, key, value, project) {
+      var self = this;
+
+      var td0 = tr.insertCell(0);
+      $(td0).text(key);
+
+      var td1 = tr.insertCell(1);
+      $(td1).text((value !== null) ? value : "");
+
+      var td2 = tr.insertCell(2);
+
+      $('<button class="button">').text($.i18n._('core-index')["edit"]).appendTo(td2).click(function() {
+        var newValue = window.prompt($.i18n._('core-index')["change-value"]+" " + key, value);
+        if (newValue !== null) {
+          $(td1).text(newValue);
+          metaData[key] = newValue;
+          $.post(
+            "command/core/set-metaData",
+            {
+              project : project,
+              name : key,
+              value : newValue
+            },
+            function(o) {
+              if (o.code === "error") {
+                alert(o.message);
+              } 
+            },
+            "json"
+          );
+        }
+      });
+  }
+  
+  this._createDialog();
+}
+
+EditMetadataDialog.prototype._createDialog = function() {
+  var self = this;
+  
+  var frame = $(DOM.loadHTML("core", "scripts/project/edit-metadata-dialog.html"));
+  this._elmts = DOM.bind(frame);  
+
+  this._level = DialogSystem.showDialog(frame);
+  this._elmts.closeButton.html($.i18n._('core-buttons')["close"]);
+  this._elmts.closeButton.click(function() { self._dismiss(); });
+  
+  var body = $("#metadata-body");
+    
+  $('<h1>').text($.i18n._('core-index')["metaDatas"]).appendTo(body);
+
+  var metadataTable = $("<table>")
+  .addClass("list-table")
+  .addClass("preferences")
+  .html('<tr><th>'+$.i18n._('core-index')["key"]+'</th><th>'+$.i18n._('core-index')["value"]+'</th><th></th></tr>')
+  .appendTo(body)[0];
+
+  for (var k in this._metaData) {
+    var tr = metadataTable.insertRow(metadataTable.rows.length);
+    
+    if (typeof this._metaData[k] === 'string')
+        v = this._metaData[k].replace(/\"/g, "");  
+    else
+        v = JSON.stringify(this._metaData[k]);
+        
+    
+    this._metaDataUIs.push(new this._MetaDataUI(tr, k, v, this._metaData.id));
+  }
+  
+}
+
+EditMetadataDialog.prototype._dismiss = function() {
+    DialogSystem.dismissUntil(this._level - 1);
+};
+

main/webapp/modules/core/scripts/project/edit-metadata-dialog.html

@@ -0,0 +1,11 @@
+<div class="dialog-frame" style="width: 1600px; height: 700px">
+  <div class="dialog-border">
+    <div class="dialog-header" bind="dialogHeader"></div>
+    <div class="dialog-body" bind="dialogBody">
+      <div id="metadata-body" class="grid-layout layout-normal layout-full"></div>
+    </div>
+    <div class="dialog-footer" bind="dialogFooter">
+      <button class="button" bind="closeButton"></button>
+    </div>
+  </div>
+</div>