diff --git a/designer_base/src/com/fr/design/extra/exe/GetPluginCategoriesExecutor.java b/designer_base/src/com/fr/design/extra/exe/GetPluginCategoriesExecutor.java
new file mode 100644
index 000000000..92aa0bbe8
--- /dev/null
+++ b/designer_base/src/com/fr/design/extra/exe/GetPluginCategoriesExecutor.java
@@ -0,0 +1,42 @@
+package com.fr.design.extra.exe;
+
+import com.fr.design.extra.PluginHelper;
+import com.fr.design.extra.Process;
+import com.fr.general.SiteCenter;
+import com.fr.general.http.HttpClient;
+
+/**
+ * Created by vito on 16/5/16.
+ */
+public class GetPluginCategoriesExecutor implements Executor {
+    private String result = "[]";
+
+    @Override
+    public String getTaskFinishMessage() {
+        return result;
+    }
+
+    @Override
+    public Command[] getCommands() {
+        return new Command[]{
+                new Command() {
+                    @Override
+                    public String getExecuteMessage() {
+                        return null;
+                    }
+
+                    @Override
+                    public void run(Process<String> process) {
+                        String url = SiteCenter.getInstance().acquireUrlByKind("plugin.category");
+                        if (url != null) {
+                            HttpClient httpClient = new HttpClient(url);
+                            result = httpClient.getResponseText();
+                        } else {
+                            result = PluginHelper.CONNECTION_404;
+                        }
+
+                    }
+                }
+        };
+    }
+}
diff --git a/designer_base/src/com/fr/design/extra/exe/GetPluginFromStoreExecutor.java b/designer_base/src/com/fr/design/extra/exe/GetPluginFromStoreExecutor.java
new file mode 100644
index 000000000..9bd7e2bbe
--- /dev/null
+++ b/designer_base/src/com/fr/design/extra/exe/GetPluginFromStoreExecutor.java
@@ -0,0 +1,68 @@
+package com.fr.design.extra.exe;
+
+import com.fr.design.extra.PluginHelper;
+import com.fr.design.extra.Process;
+import com.fr.general.FRLogger;
+import com.fr.general.SiteCenter;
+import com.fr.general.http.HttpClient;
+import com.fr.stable.StringUtils;
+
+/**
+ * Created by vito on 16/4/18.
+ * 获取插件分类信息
+ */
+public class GetPluginFromStoreExecutor implements Executor {
+    private String result = "[]";
+    private String category;
+    private String seller;
+    private String fee;
+
+    public GetPluginFromStoreExecutor(String category, String seller, String fee) {
+        this.category = category;
+        this.seller = seller;
+        this.fee = fee;
+    }
+
+    @Override
+    public String getTaskFinishMessage() {
+        return result;
+    }
+
+    @Override
+    public Command[] getCommands() {
+        return new Command[]{
+                new Command() {
+                    @Override
+                    public String getExecuteMessage() {
+                        return StringUtils.EMPTY;
+                    }
+
+                    @Override
+                    public void run(Process<String> process) {
+                        String plistUrl = SiteCenter.getInstance().acquireUrlByKind("plugin.plist");
+                        if (StringUtils.isNotBlank(plistUrl)) {
+                            StringBuilder url = new StringBuilder();
+                            url.append(plistUrl);
+                            if (StringUtils.isNotBlank(category)) {
+                                url.append("&cid=").append(category.split("-")[1]);
+                            }
+                            if (StringUtils.isNotBlank(seller)) {
+                                url.append("&seller=").append(seller.split("-")[1]);
+                            }
+                            if (StringUtils.isNotBlank(fee)) {
+                                url.append("&fee=").append(fee.split("-")[1]);
+                            }
+                            try {
+                                HttpClient httpClient = new HttpClient(url.toString());
+                                result = httpClient.getResponseText();
+                            } catch (Exception e) {
+                                FRLogger.getLogger().error(e.getMessage());
+                            }
+                        } else {
+                            result = PluginHelper.CONNECTION_404;
+                        }
+                    }
+                }
+        };
+    }
+}
diff --git a/designer_base/src/com/fr/design/extra/exe/ReadUpdateOnlineExecutor.java b/designer_base/src/com/fr/design/extra/exe/ReadUpdateOnlineExecutor.java
new file mode 100644
index 000000000..c510a67cc
--- /dev/null
+++ b/designer_base/src/com/fr/design/extra/exe/ReadUpdateOnlineExecutor.java
@@ -0,0 +1,51 @@
+package com.fr.design.extra.exe;
+
+import com.fr.design.extra.PluginsReaderFromStore;
+import com.fr.design.extra.Process;
+import com.fr.general.FRLogger;
+
+import com.fr.plugin.Plugin;
+import com.fr.stable.StringUtils;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Created by vito on 16/4/19.
+ */
+public class ReadUpdateOnlineExecutor implements Executor {
+    private Plugin[] plugins;
+    private String result;
+
+    @Override
+    public String getTaskFinishMessage() {
+        return result;
+    }
+
+    @Override
+    public Command[] getCommands() {
+        return new Command[]{
+                new Command() {
+                    @Override
+                    public String getExecuteMessage() {
+                        return StringUtils.EMPTY;
+                    }
+
+                    @Override
+                    public void run(Process<String> process) {
+                        try {
+                            plugins = PluginsReaderFromStore.readPluginsForUpdate();
+                            JSONArray jsonArray = new JSONArray();
+                            for (Plugin plugin : plugins) {
+                                JSONObject jsonObject = new JSONObject();
+                                jsonObject.put("pluginid", plugin.getId());
+                                jsonArray.put(jsonObject);
+                            }
+                            result = jsonArray.toString();
+                        } catch (Exception e) {
+                            FRLogger.getLogger().error(e.getMessage());
+                        }
+                    }
+                }
+        };
+    }
+}
diff --git a/designer_base/src/com/fr/design/extra/exe/SearchOnlineExecutor.java b/designer_base/src/com/fr/design/extra/exe/SearchOnlineExecutor.java
new file mode 100644
index 000000000..089173c98
--- /dev/null
+++ b/designer_base/src/com/fr/design/extra/exe/SearchOnlineExecutor.java
@@ -0,0 +1,47 @@
+package com.fr.design.extra.exe;
+
+import com.fr.design.extra.Process;
+import com.fr.general.FRLogger;
+import com.fr.general.SiteCenter;
+import com.fr.general.http.HttpClient;
+import com.fr.stable.StringUtils;
+
+/**
+ * Created by vito on 16/4/18.
+ */
+public class SearchOnlineExecutor implements Executor {
+    private String result;
+    private String keyword;
+
+    public SearchOnlineExecutor(String keyword) {
+        this.keyword = keyword;
+    }
+
+    @Override
+    public String getTaskFinishMessage() {
+        return result;
+    }
+
+    @Override
+    public Command[] getCommands() {
+        return new Command[]{
+                new Command() {
+                    @Override
+                    public String getExecuteMessage() {
+                        return StringUtils.EMPTY;
+                    }
+
+                    @Override
+                    public void run(Process<String> process) {
+                        try {
+                            HttpClient httpClient = new HttpClient(SiteCenter.getInstance().acquireUrlByKind("plugin.plist") + "&keyword=" + keyword);
+                            result = httpClient.getResponseText();
+
+                        } catch (Exception e) {
+                            FRLogger.getLogger().error(e.getMessage());
+                        }
+                    }
+                }
+        };
+    }
+}
diff --git a/designer_base/src/com/fr/design/web/CustomIconPane.java b/designer_base/src/com/fr/design/web/CustomIconPane.java
index dbf4b37b8..eebd65d52 100644
--- a/designer_base/src/com/fr/design/web/CustomIconPane.java
+++ b/designer_base/src/com/fr/design/web/CustomIconPane.java
@@ -232,6 +232,9 @@ public class CustomIconPane extends BasicPane {
 	}
 
 	private void updateButtonPane() {
+		if (editButton == null || removeButton == null){
+			return;
+		}
 		if (iconManager.isSystemIcon(selectedIconName)) {
 			editButton.setEnabled(false);
             removeButton.setEnabled(false);
@@ -298,7 +301,7 @@ public class CustomIconPane extends BasicPane {
 		} catch (RuntimeException re) {
             return;
 		}
-        updateButtonPane();
+		updateButtonPane();
 	}
 	
 	private class IconButton extends JToggleButton implements ActionListener{