Added Clear All action

src/main/java/com/leinardi/pycharm/pylint/actions/ClearAll.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2018 Roberto Leinardi.
+ *
+ * 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 com.leinardi.pycharm.pylint.actions;
+
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.PlatformDataKeys;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.wm.ToolWindow;
+import com.intellij.openapi.wm.ToolWindowManager;
+import com.intellij.ui.content.Content;
+import com.leinardi.pycharm.pylint.PylintPlugin;
+import com.leinardi.pycharm.pylint.toolwindow.PylintToolWindowPanel;
+
+/**
+ * Action to toggle error display in tool window.
+ */
+public class ClearAll extends BaseAction {
+
+    @Override
+    public void actionPerformed(final AnActionEvent event) {
+        final Project project = PlatformDataKeys.PROJECT.getData(event.getDataContext());
+        if (project == null) {
+            return;
+        }
+
+        final PylintPlugin pylintPlugin
+                = project.getComponent(PylintPlugin.class);
+        if (pylintPlugin == null) {
+            throw new IllegalStateException("Couldn't get pylint plugin");
+        }
+
+        final ToolWindow toolWindow = ToolWindowManager.getInstance(
+                project).getToolWindow(PylintToolWindowPanel.ID_TOOLWINDOW);
+
+        final Content content = toolWindow.getContentManager().getContent(0);
+        if (content != null && content.getComponent() instanceof PylintToolWindowPanel) {
+            ((PylintToolWindowPanel) content.getComponent()).clearResult();
+        }
+    }
+
+}

src/main/java/com/leinardi/pycharm/pylint/toolwindow/PylintToolWindowPanel.java

@@ -479,6 +479,11 @@ public void displayWarningResult(final String messageKey,
         treeModel.setRootMessage(messageKey, messageArgs);
     }
 
+    public void clearResult() {
+        treeModel.clear();
+        treeModel.setRootText(null);
+    }
+
     /**
      * Clear the results and display notice to say an error occurred.
      *

src/main/java/com/leinardi/pycharm/pylint/ui/PylintConfigPanel.java

@@ -141,14 +141,12 @@ public void actionPerformed(final ActionEvent e) {
                 testButton.setIcon(Icons.icon("/general/inspectionsOK.png"));
                 Notifications.showInfo(
                         project,
-                        PylintBundle.message("config.pylint.path.success.title"),
                         PylintBundle.message("config.pylint.path.success.message")
                 );
             } else {
                 testButton.setIcon(Icons.icon("/general/error.png"));
                 Notifications.showError(
                         project,
-                        PylintBundle.message("config.pylint.path.failure.title"),
                         PylintBundle.message("config.pylint.path.failure.message", pathToPylint)
                 );
             }

src/main/java/com/leinardi/pycharm/pylint/util/Notifications.java

@@ -36,13 +36,14 @@ public final class Notifications {
 
     private static final NotificationGroup BALLOON_GROUP = balloonGroup(message("plugin.notification.alerts"));
     private static final NotificationGroup LOG_ONLY_GROUP = logOnlyGroup(message("plugin.notification.logging"));
+    private static final String TITLE = message("plugin.name");
 
     private Notifications() {
     }
 
     public static void showInfo(final Project project, final String infoText) {
         BALLOON_GROUP
-                .createNotification("", infoText, INFORMATION, URL_OPENING_LISTENER)
+                .createNotification(TITLE, infoText, INFORMATION, URL_OPENING_LISTENER)
                 .notify(project);
     }
 
@@ -54,7 +55,7 @@ public static void showInfo(final Project project, final String title, final Str
 
     public static void showWarning(final Project project, final String warningText) {
         BALLOON_GROUP
-                .createNotification("", warningText, WARNING, URL_OPENING_LISTENER)
+                .createNotification(TITLE, warningText, WARNING, URL_OPENING_LISTENER)
                 .notify(project);
     }
 
@@ -66,7 +67,7 @@ public static void showWarning(final Project project, final String title, final
 
     public static void showError(final Project project, final String errorText) {
         BALLOON_GROUP
-                .createNotification("", errorText, ERROR, URL_OPENING_LISTENER)
+                .createNotification(TITLE, errorText, ERROR, URL_OPENING_LISTENER)
                 .notify(project);
     }
 

src/main/resources/META-INF/plugin.xml

@@ -120,6 +120,15 @@
                     text="Display Refactor"
                     description="Display Refactor results"
                     icon="/actions/forceRefresh.png"/>
+
+            <separator/>
+
+            <action id="PylintClearAllAction"
+                    class="com.leinardi.pycharm.pylint.actions.ClearAll"
+                    text="Clear All"
+                    description="Clear all elements in the tool window"
+                    icon="/actions/gc.png"/>
+
         </group>
 
         <group id="PylintPluginActions" text="Pylint" popup="true">

src/main/resources/com/leinardi/pycharm/pylint/PylintBundle.properties

@@ -73,10 +73,8 @@ pylint.exception-with-root-cause=<html><b>The scan failed due to an exception:<b
 config.pylint.path=Path to Pylint executable:
 config.pylint.path.default=pylint
 config.pylint.path.test=Test
-config.pylint.path.success.title=Success
-config.pylint.path.success.message=Pylint executable found!
-config.pylint.path.failure.title=Failure
-config.pylint.path.failure.message=Pylint not found on {0}
+config.pylint.path.success.message=Success: executable found!
+config.pylint.path.failure.message=Failure: executable "{0}" not found
 config.file.tab=Configuration File
 config.file.description=The active rules file may be overridden, or deactivated, by module settings.
 config.file.label.text=Configuration File: