Applied patch for Issue 222: save favorite transforms.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@2079 7d457c2a-affb-35e4-300a-418c747d4874

main/src/com/google/refine/ProjectManager.java

@@ -466,5 +466,6 @@ public abstract class ProjectManager {
     */
    static protected void preparePreferenceStore(PreferenceStore ps) {
        ps.put("scripting.expressions", new TopList(s_expressionHistoryMax));
+       ps.put("scripting.starred-expressions", new TopList(Integer.MAX_VALUE));
    }
 }

main/src/com/google/refine/commands/expr/GetExpressionHistoryCommand.java

@@ -67,6 +67,7 @@ public class GetExpressionHistoryCommand extends Command {
             localExpressions = localExpressions.size() > 20 ? localExpressions.subList(0, 20) : localExpressions;
             
             List<String> globalExpressions = toExpressionList(ProjectManager.singleton.getPreferenceStore().get("scripting.expressions"));
+            Set<String> starredExpressions = new HashSet<String>(((TopList)ProjectManager.singleton.getPreferenceStore().get("scripting.starred-expressions")).getList());
             
             Set<String> done = new HashSet<String>();
             
@@ -81,6 +82,7 @@ public class GetExpressionHistoryCommand extends Command {
                     writer.object();
                     writer.key("code"); writer.value(s);
                     writer.key("global"); writer.value(false);
+                    writer.key("starred"); writer.value(starredExpressions.contains(s));
                     writer.endObject();
                     done.add(s);
                 }
@@ -89,6 +91,7 @@ public class GetExpressionHistoryCommand extends Command {
                         writer.object();
                         writer.key("code"); writer.value(s);
                         writer.key("global"); writer.value(true);
+                        writer.key("starred"); writer.value(starredExpressions.contains(s));
                         writer.endObject();
                     }
                 }

main/src/com/google/refine/commands/expr/GetStarredExpressionsCommand.java

@@ -0,0 +1,44 @@
+package com.google.refine.commands.expr;
+
+import java.io.IOException;
+import java.util.List;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONWriter;
+
+import com.google.refine.ProjectManager;
+import com.google.refine.commands.Command;
+import com.google.refine.preference.TopList;
+
+
+public class GetStarredExpressionsCommand extends Command {
+    
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        
+        try {
+            List<String> starredExpressions = ((TopList)ProjectManager.singleton.getPreferenceStore().get("scripting.starred-expressions")).getList();
+            
+            response.setCharacterEncoding("UTF-8");
+            response.setHeader("Content-Type", "application/json");
+            
+            JSONWriter writer = new JSONWriter(response.getWriter());
+            writer.object();
+            writer.key("expressions");
+                writer.array();
+                for (String s : starredExpressions) {
+                    writer.object();
+                    writer.key("code"); writer.value(s);
+                    writer.endObject();
+                }
+                writer.endArray();
+            writer.endObject();
+        } catch (Exception e) {
+            respondException(response, e);
+        }
+    }
+}

main/src/com/google/refine/commands/expr/ToggleStarredExpressionCommand.java

@@ -0,0 +1,51 @@
+
+package com.google.refine.commands.expr;
+
+import java.io.IOException;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONWriter;
+
+import com.google.refine.ProjectManager;
+import com.google.refine.commands.Command;
+import com.google.refine.preference.TopList;
+
+public class ToggleStarredExpressionCommand extends Command {
+
+    @Override
+    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        String expression = request.getParameter("expression");
+
+        TopList starredExpressions = ((TopList) ProjectManager.singleton.getPreferenceStore().get(
+                "scripting.starred-expressions"));
+
+        if (starredExpressions.getList().contains(expression))
+            starredExpressions.remove(expression);
+        else
+            starredExpressions.add(expression);
+
+        if(request.getParameter("returnList") != null)
+        try {
+            response.setCharacterEncoding("UTF-8");
+            response.setHeader("Content-Type", "application/json");
+
+            JSONWriter writer = new JSONWriter(response.getWriter());
+            writer.object();
+            writer.key("expressions");
+            writer.array();
+            for (String s : starredExpressions) {
+                writer.object();
+                writer.key("code");
+                writer.value(s);
+                writer.endObject();
+            }
+            writer.endArray();
+            writer.endObject();
+        } catch (Exception e) {
+            respondException(response, e);
+        }
+    }
+}

main/src/com/google/refine/preference/TopList.java

@@ -34,6 +34,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 package com.google.refine.preference;
 
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Properties;
 
@@ -46,7 +47,7 @@ import org.json.JSONWriter;
 import com.google.refine.Jsonizable;
 
 
-public class TopList implements Jsonizable {
+public class TopList implements Jsonizable, Iterable<String> {
     private static final long serialVersionUID = 2666669643063493350L;
     
     final protected int          _top;
@@ -69,6 +70,11 @@ public class TopList implements Jsonizable {
         }
     }
     
+    public void remove(String element)
+    {
+        _list.remove(element);
+    }
+
     @Override
     public void write(JSONWriter writer, Properties options) throws JSONException {
         writer.object();
@@ -102,4 +108,9 @@ public class TopList implements Jsonizable {
             _list.add(a.getString(i));
         }
     }
+    
+    @Override  
+    public Iterator<String> iterator() {  
+        return _list.iterator();  
+    } 
 }

main/webapp/modules/core/MOD-INF/controller.js

@@ -120,9 +120,12 @@ function registerCommands() {
 
     RS.registerCommand(module, "get-expression-language-info", new Packages.com.google.refine.commands.expr.GetExpressionLanguageInfoCommand());
     RS.registerCommand(module, "get-expression-history", new Packages.com.google.refine.commands.expr.GetExpressionHistoryCommand());
+    RS.registerCommand(module, "get-starred-expressions", new Packages.com.google.refine.commands.expr.GetStarredExpressionsCommand());
+    RS.registerCommand(module, "toggle-starred-expression", new Packages.com.google.refine.commands.expr.ToggleStarredExpressionCommand());
     RS.registerCommand(module, "log-expression", new Packages.com.google.refine.commands.expr.LogExpressionCommand());
     RS.registerCommand(module, "preview-expression", new Packages.com.google.refine.commands.expr.PreviewExpressionCommand());
 
+
     RS.registerCommand(module, "get-preference", new Packages.com.google.refine.commands.GetPreferenceCommand());
     RS.registerCommand(module, "get-all-preferences", new Packages.com.google.refine.commands.GetAllPreferencesCommand());
     RS.registerCommand(module, "set-preference", new Packages.com.google.refine.commands.SetPreferenceCommand());

main/webapp/modules/core/scripts/dialogs/expression-preview-dialog.html

@@ -14,6 +14,7 @@
         <ul>
           <li><a href="#expression-preview-tabs-preview">Preview</a></li>
           <li><a href="#expression-preview-tabs-history">History</a></li>
+          <li><a href="#expression-preview-tabs-starred">Starred</a></li>
           <li><a href="#expression-preview-tabs-help">Help</a></li>
         </ul>
         <div id="expression-preview-tabs-preview">
@@ -22,6 +23,9 @@
         <div id="expression-preview-tabs-history" style="display: none;">
           <div class="expression-preview-container" bind="expressionPreviewHistoryContainer"></div>
         </div>
+        <div id="expression-preview-tabs-starred" style="display: none;">
+          <div class="expression-preview-container" bind="expressionPreviewStarredContainer"></div>
+        </div>
         <div id="expression-preview-tabs-help" style="display: none;">
           <div class="expression-preview-help-container" bind="expressionPreviewHelpTabBody"></div>
         </div>

main/webapp/modules/core/scripts/dialogs/expression-preview-dialog.js

@@ -119,6 +119,7 @@ ExpressionPreviewDialog.Widget = function(
     
     $("#expression-preview-tabs").tabs();
     $("#expression-preview-tabs-history").css("display", "");
+    $("#expression-preview-tabs-starred").css("display", "");
     $("#expression-preview-tabs-help").css("display", "");
     
     this._elmts.expressionPreviewLanguageSelect[0].value = language;
@@ -140,6 +141,7 @@ ExpressionPreviewDialog.Widget = function(
     
     this.update();
     this._renderExpressionHistoryTab();
+    this._renderStarredExpressionsTab();
     this._renderHelpTab();
 };
 
@@ -266,15 +268,93 @@ ExpressionPreviewDialog.Widget.prototype._renderExpressionHistory = function(dat
     
     var table = $(
         '<table>' +
-            '<tr><th></th><th>From</th><th colspan="2">Expression</th><th></th></tr>' +
+            '<tr><th></th><th></th><th>From</th><th colspan="2">Expression</th><th></th></tr>' +
         '</table>'
     ).appendTo($('<div>').addClass("expression-preview-table-wrapper").appendTo(elmt))[0];
     
-    var renderEntry = function(entry) {
+    var renderEntry = function(self,tr,entry) {
-        var tr = table.insertRow(table.rows.length);
+        $(tr).empty();
         var o = Scripting.parse(entry.code);
+        $('<a href="javascript:{}">&nbsp;</a>')
+                .addClass(entry.starred ? "data-table-star-on" : "data-table-star-off")
+                .appendTo(tr.insertCell(0))
+                .click(function() {
+                    $.post(
+                        "/command/core/toggle-starred-expression",
+                        { expression: entry.code },
+                        function(data) {
+                            entry.starred = !entry.starred;
+                            renderEntry(self,tr,entry);
+                            self._renderStarredExpressionsTab();
+                        },
+                        "json"
+                    );
+                });
         
-        $('<a href="javascript:{}">Reuse</a>').appendTo(tr.insertCell(0)).click(function() {
+        $('<a href="javascript:{}">Reuse</a>').appendTo(tr.insertCell(1)).click(function() {
+            self._elmts.expressionPreviewTextarea[0].value = o.expression;
+            self._elmts.expressionPreviewLanguageSelect[0].value = o.language;
+            
+            $("#expression-preview-tabs").tabs('option', 'selected', 0);
+            
+            self._elmts.expressionPreviewTextarea.select().focus();
+            
+            self.update();
+        });
+        
+        
+        $(tr.insertCell(2)).html(entry.global ? "Other&nbsp;projects" : "This&nbsp;project");
+        $(tr.insertCell(3)).text(o.language + ":");
+        $(tr.insertCell(4)).text(o.expression);
+    };
+    
+    for (var i = 0; i < data.expressions.length; i++) {
+        var tr = table.insertRow(table.rows.length);
+        var entry = data.expressions[i];
+        renderEntry(self,tr,entry);
+    }
+   
+};
+
+ExpressionPreviewDialog.Widget.prototype._renderStarredExpressionsTab = function() {
+    var self = this;
+    $.getJSON(
+        "/command/core/get-starred-expressions",
+        null,
+        function(data) {
+            self._renderStarredExpressions(data);
+        },
+        "json"
+    );
+};
+
+ExpressionPreviewDialog.Widget.prototype._renderStarredExpressions = function(data) {
+    var self = this;
+    var elmt = this._elmts.expressionPreviewStarredContainer.empty().width(this._tabContentWidth);
+    
+    var table = $(
+        '<table>' +
+            '<tr><th></th><th></th><th colspan="2">Expression</th><th></th></tr>' +
+        '</table>'
+    ).appendTo($('<div>').addClass("expression-preview-table-wrapper").appendTo(elmt))[0];
+    
+    var renderEntry = function(entry) {
+        var tr = table.insertRow(table.rows.length);
+        var o = Scripting.parse(entry.code);
+        
+        $('<a href="javascript:{}">Remove</a>').appendTo(tr.insertCell(0)).click(function() {
+            $.post(
+                "/command/core/toggle-starred-expression",
+                { expression: entry.code, returnList: true },
+                function(data) {
+                    self._renderStarredExpressions(data);
+                    self._renderExpressionHistoryTab();
+                },
+                "json"
+            );
+        });
+        
+        $('<a href="javascript:{}">Reuse</a>').appendTo(tr.insertCell(1)).click(function() {
             self._elmts.expressionPreviewTextarea[0].value = o.expression;
             self._elmts.expressionPreviewLanguageSelect[0].value = o.language;
             
@@ -285,7 +365,6 @@ ExpressionPreviewDialog.Widget.prototype._renderExpressionHistory = function(dat
             self.update();
         });
         
-        $(tr.insertCell(1)).html(entry.global ? "Other&nbsp;projects" : "This&nbsp;project");
         $(tr.insertCell(2)).text(o.language + ":");
         $(tr.insertCell(3)).text(o.expression);
     };
@@ -294,8 +373,7 @@ ExpressionPreviewDialog.Widget.prototype._renderExpressionHistory = function(dat
         var entry = data.expressions[i];
         renderEntry(entry);
     }
-};
+}
-
 ExpressionPreviewDialog.Widget.prototype._scheduleUpdate = function() {
     if (this._timerID !== null) {
         window.clearTimeout(this._timerID);

main/webapp/modules/core/styles/dialogs/expression-preview-dialog.less

@@ -52,21 +52,24 @@ textarea.expression-preview-code {
 
 #expression-preview-tabs-preview,
 #expression-preview-tabs-help,
-#expression-preview-tabs-history {
+#expression-preview-tabs-history,
+#expression-preview-tabs-starred {
     padding: @padding_tight;
     overflow: hidden;
 }
 
 #expression-preview-tabs-preview > div,
 #expression-preview-tabs-help > div,
-#expression-preview-tabs-history > div {
+#expression-preview-tabs-history > div,
+#expression-preview-tabs-starred {
     height: 200px;
     overflow: auto;
 }
 
 #expression-preview-tabs-preview td, #expression-preview-tabs-preview th,
 #expression-preview-tabs-help td, #expression-preview-tabs-help th,
-#expression-preview-tabs-history td, #expression-preview-tabs-history th {
+#expression-preview-tabs-history td, #expression-preview-tabs-history th,
+#expression-preview-tabs-starred td, #expression-preview-tabs-starred th {
     padding: @padding_tight;
 }