'power save mode' option (turns off daemon code analyzer)

platform/lang-impl/src/com/intellij/codeInsight/daemon/PowerSaveHectorProvider.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2000-2010 JetBrains s.r.o.
+ *
+ * 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.intellij.codeInsight.daemon;
+
+import com.intellij.ide.PowerSaveMode;
+import com.intellij.openapi.editor.HectorComponentPanel;
+import com.intellij.openapi.editor.HectorComponentPanelsProvider;
+import com.intellij.openapi.options.ConfigurationException;
+import com.intellij.psi.PsiFile;
+import org.jetbrains.annotations.NotNull;
+
+import javax.swing.*;
+
+/**
+ * @author yole
+ */
+public class PowerSaveHectorProvider implements HectorComponentPanelsProvider {
+  @Override
+  public HectorComponentPanel createConfigurable(@NotNull PsiFile file) {
+    return new HectorComponentPanel() {
+      private JCheckBox myCheckBox = new JCheckBox("Power Save Mode");
+
+      @Override
+      public JComponent createComponent() {
+        return myCheckBox;
+      }
+
+      @Override
+      public boolean isModified() {
+        return myCheckBox.isSelected() != PowerSaveMode.isEnabled();
+      }
+
+      @Override
+      public void apply() throws ConfigurationException {
+        PowerSaveMode.setEnabled(myCheckBox.isSelected());
+      }
+
+      @Override
+      public void reset() {
+        myCheckBox.setSelected(PowerSaveMode.isEnabled());
+      }
+
+      @Override
+      public void disposeUIResources() {
+      }
+    };
+  }
+}

platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonCodeAnalyzerImpl.java

@@ -27,6 +27,7 @@ import com.intellij.codeInsight.daemon.ReferenceImporter;
 import com.intellij.codeInsight.hint.HintManager;
 import com.intellij.codeInsight.intention.impl.IntentionHintComponent;
 import com.intellij.concurrency.Job;
+import com.intellij.ide.PowerSaveMode;
 import com.intellij.lang.annotation.HighlightSeverity;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.diagnostic.Logger;
@@ -586,6 +587,7 @@ public class DaemonCodeAnalyzerImpl extends DaemonCodeAnalyzer implements JDOMEx
     return new Runnable() {
       public void run() {
         if (!myUpdateByTimerEnabled) return;
+        if (PowerSaveMode.isEnabled()) return;
         if (myDisposed || myProject.isDisposed()) return;
         final Collection<FileEditor> activeEditors = myDaemonListeners.getSelectedEditors();
         if (activeEditors.isEmpty()) return;

platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonListeners.java

@@ -19,6 +19,7 @@ package com.intellij.codeInsight.daemon.impl;
 import com.intellij.ProjectTopics;
 import com.intellij.codeHighlighting.Pass;
 import com.intellij.codeInsight.hint.TooltipController;
+import com.intellij.ide.PowerSaveMode;
 import com.intellij.ide.todo.TodoConfiguration;
 import com.intellij.openapi.Disposable;
 import com.intellij.openapi.actionSystem.*;
@@ -195,6 +196,13 @@ public class DaemonListeners implements Disposable {
       }
     });
 
+    connection.subscribe(PowerSaveMode.TOPIC, new PowerSaveMode.Listener() {
+      @Override
+      public void powerSaveStateChanged() {
+        stopDaemon(true);
+      }
+    });
+
     CommandProcessor.getInstance().addCommandListener(new MyCommandListener(), this);
     ApplicationManager.getApplication().addApplicationListener(myApplicationListener);
     EditorColorsManager.getInstance().addEditorColorsListener(myEditorColorsListener);

platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/TrafficLightRenderer.java

@@ -20,6 +20,7 @@ import com.intellij.codeHighlighting.HighlightDisplayLevel;
 import com.intellij.codeHighlighting.TextEditorHighlightingPass;
 import com.intellij.codeInsight.daemon.DaemonBundle;
 import com.intellij.codeInsight.daemon.impl.analysis.HighlightLevelUtil;
+import com.intellij.ide.PowerSaveMode;
 import com.intellij.lang.annotation.HighlightSeverity;
 import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.editor.markup.ErrorStripeRenderer;
@@ -109,7 +110,7 @@ public class TrafficLightRenderer implements ErrorStripeRenderer {
     final SeverityRegistrar severityRegistrar = SeverityRegistrar.getInstance(myProject);
     status.errorCount = new int[severityRegistrar.getSeveritiesCount()];
     status.rootsNumber = roots.length;
-    fillDaemonCodeAnalyzerErrorsSatus(status, fillErrorsCount);
+    fillDaemonCodeAnalyzerErrorsStatus(status, fillErrorsCount);
     List<TextEditorHighlightingPass> passes = myDaemonCodeAnalyzer.getPassesToShowProgressFor(myFile);
     ArrayList<DaemonCodeAnalyzerStatus.PassStatus> passStati = new ArrayList<DaemonCodeAnalyzerStatus.PassStatus>();
     for (TextEditorHighlightingPass tepass : passes) {
@@ -127,7 +128,7 @@ public class TrafficLightRenderer implements ErrorStripeRenderer {
     return status;
   }
 
-  protected void fillDaemonCodeAnalyzerErrorsSatus(DaemonCodeAnalyzerStatus status, boolean fillErrorsCount) {
+  protected void fillDaemonCodeAnalyzerErrorsStatus(DaemonCodeAnalyzerStatus status, boolean fillErrorsCount) {
     final SeverityRegistrar severityRegistrar = SeverityRegistrar.getInstance(myProject);
     List<HighlightInfo> highlights = DaemonCodeAnalyzerImpl.getHighlights(myDocument, myProject);
     if (highlights == null) highlights = Arrays.asList(HighlightInfo.EMPTY_ARRAY);
@@ -185,6 +186,11 @@ public class TrafficLightRenderer implements ErrorStripeRenderer {
 
     if (status == null) return null;
     @NonNls String text = HTML_HEADER;
+    if (PowerSaveMode.isEnabled()) {
+      text += "Code analysis is disabled in power save mode.";
+      text += HTML_FOOTER;
+      return text;
+    }
     if (status.noHighlightingRoots != null && status.noHighlightingRoots.length == status.rootsNumber) {
       text += DaemonBundle.message("analysis.hasnot.been.run");
       text += HTML_FOOTER;

platform/lang-impl/src/com/intellij/ide/PowerSaveMode.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2000-2010 JetBrains s.r.o.
+ *
+ * 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.intellij.ide;
+
+import com.intellij.openapi.components.ServiceManager;
+import com.intellij.util.messages.MessageBus;
+import com.intellij.util.messages.Topic;
+
+/**
+ * @author yole
+ */
+public class PowerSaveMode {
+  private boolean myEnabled = false;
+  private final MessageBus myBus;
+
+  public PowerSaveMode(MessageBus bus) {
+    myBus = bus;
+  }
+
+  public static boolean isEnabled() {
+    return ServiceManager.getService(PowerSaveMode.class).myEnabled;
+  }
+
+  public static void setEnabled(boolean value) {
+    final PowerSaveMode instance = ServiceManager.getService(PowerSaveMode.class);
+    if (instance.myEnabled != value) {
+      instance.myEnabled = value;
+      instance.myBus.syncPublisher(TOPIC).powerSaveStateChanged();
+    }
+  }
+
+  public interface Listener {
+    void powerSaveStateChanged();
+  }
+
+  public static Topic<Listener> TOPIC = Topic.create("PowerSaveMode.Listener", Listener.class);
+}

platform/lang-impl/src/com/intellij/ide/actions/TogglePowerSaveAction.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2000-2010 JetBrains s.r.o.
+ *
+ * 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.intellij.ide.actions;
+
+import com.intellij.ide.PowerSaveMode;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.ToggleAction;
+import com.intellij.openapi.project.DumbAware;
+
+/**
+ * @author yole
+ */
+public class TogglePowerSaveAction extends ToggleAction implements DumbAware {
+  @Override
+  public boolean isSelected(AnActionEvent e) {
+    return PowerSaveMode.isEnabled();
+  }
+
+  @Override
+  public void setSelected(AnActionEvent e, boolean state) {
+    PowerSaveMode.setEnabled(state);
+  }
+}

platform/lang-impl/src/com/intellij/openapi/wm/impl/status/TogglePopupHintsPanel.java

@@ -20,6 +20,7 @@ import com.intellij.codeInsight.daemon.DaemonCodeAnalyzer;
 import com.intellij.codeInsight.daemon.impl.HectorComponent;
 import com.intellij.codeInsight.daemon.impl.analysis.HighlightLevelUtil;
 import com.intellij.ide.DataManager;
+import com.intellij.ide.PowerSaveMode;
 import com.intellij.openapi.actionSystem.PlatformDataKeys;
 import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.fileEditor.FileEditorManager;
@@ -38,6 +39,7 @@ import com.intellij.psi.PsiManager;
 import com.intellij.ui.UIBundle;
 import com.intellij.ui.awt.RelativePoint;
 import com.intellij.util.Consumer;
+import com.intellij.util.messages.MessageBusConnection;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -57,7 +59,8 @@ public class TogglePopupHintsPanel implements StatusBarWidget, StatusBarWidget.I
 
   public TogglePopupHintsPanel(@NotNull final Project project) {
     myCurrentIcon = EMPTY_ICON;
-    project.getMessageBus().connect().subscribe(FileEditorManagerListener.FILE_EDITOR_MANAGER, new FileEditorManagerAdapter() {
+    final MessageBusConnection connection = project.getMessageBus().connect();
+    connection.subscribe(FileEditorManagerListener.FILE_EDITOR_MANAGER, new FileEditorManagerAdapter() {
       @Override
       public void selectionChanged(FileEditorManagerEvent event) {
         updateStatus();
@@ -68,6 +71,12 @@ public class TogglePopupHintsPanel implements StatusBarWidget, StatusBarWidget.I
         updateStatus();
       }
     });
+    connection.subscribe(PowerSaveMode.TOPIC, new PowerSaveMode.Listener() {
+      @Override
+      public void powerSaveStateChanged() {
+        updateStatus();
+      }
+    });
   }
 
   public void dispose() {
@@ -130,13 +139,21 @@ public class TogglePopupHintsPanel implements StatusBarWidget, StatusBarWidget.I
 
   private void updateStatus(PsiFile file) {
     if (isStateChangeable(file)) {
-      if (HighlightLevelUtil.shouldInspect(file)) {
+      if (PowerSaveMode.isEnabled()) {
+        myCurrentIcon = EMPTY_ICON;
+        myToolTipText = "Code analysis is disabled in power save mode. ";
+      }
+      else if (HighlightLevelUtil.shouldInspect(file)) {
         myCurrentIcon = INSPECTIONS_ICON;
-        myToolTipText =  "Current inspection profile: " + InspectionProjectProfileManager.getInstance(file.getProject()).getInspectionProfile().getName() + ". ";
-      } else if (HighlightLevelUtil.shouldHighlight(file)) {
+        myToolTipText = "Current inspection profile: " +
+                        InspectionProjectProfileManager.getInstance(file.getProject()).getInspectionProfile().getName() +
+                        ". ";
+      }
+      else if (HighlightLevelUtil.shouldHighlight(file)) {
         myCurrentIcon = SYNTAX_ONLY_ICON;
-        myToolTipText = "Highlighting level is: Syntax. ";        
-      } else {
+        myToolTipText = "Highlighting level is: Syntax. ";
+      }
+      else {
         myCurrentIcon = INSPECTIONS_OFF_ICON;
         myToolTipText = "Inspections are off. ";
       }

platform/platform-resources-en/src/messages/ActionsBundle.properties

@@ -1171,3 +1171,5 @@ group.ToolsBasicGroup.description=Tools Basic Group
 group.ToolbarNewElement.text=Toolbar New Element Group
 action.NewElementToolbarAction.text=Create New File
 action.ShowRegistry.text=Registry
+action.TogglePowerSave.text=Power Save Mode
+action.TogglePowerSave.description=Power save mode disables background code analysis and other background operations

platform/platform-resources/src/META-INF/LangExtensions.xml

@@ -128,6 +128,9 @@
   <applicationService serviceInterface="com.intellij.patterns.compiler.PatternCompilerFactory"
                       serviceImplementation="com.intellij.patterns.compiler.PatternCompilerFactoryImpl"/>
 
+  <applicationService serviceInterface="com.intellij.ide.PowerSaveMode"
+                      serviceImplementation="com.intellij.ide.PowerSaveMode"/>
+
   <projectService serviceInterface="com.intellij.psi.codeStyle.ProjectCodeStyleSettingsManager"
                   serviceImplementation="com.intellij.psi.codeStyle.ProjectCodeStyleSettingsManager"/>
 
@@ -568,4 +571,6 @@
   <applicationService serviceInterface="com.intellij.ide.todo.TodoConfiguration"
                       serviceImplementation="com.intellij.ide.todo.TodoConfiguration"/>
   <indexPatternProvider implementation="com.intellij.ide.todo.TodoIndexPatternProvider"/>
+
+  <hectorComponentProvider implementation="com.intellij.codeInsight.daemon.PowerSaveHectorProvider"/>
 </extensions>

platform/platform-resources/src/idea/LangActions.xml

@@ -70,6 +70,12 @@
       <add-to-group group-id="FileMenu" anchor="after" relative-to-action="ChangeFileEncodingGroup"/>
     </action>
 
+    <group id="PowerSaveGroup">
+      <separator/>
+      <action id="TogglePowerSave" class="com.intellij.ide.actions.TogglePowerSaveAction"/>
+      <add-to-group group-id="FileMenu" anchor="after" relative-to-action="ToggleReadOnlyAttribute"/>
+    </group>
+
     <!-- Edit -->
     <action id="CopyReference" class="com.intellij.ide.actions.CopyReferenceAction">
       <add-to-group group-id="CutCopyPasteGroup" anchor="after" relative-to-action="CopyPaths"/>

xml/dom-impl/src/com/intellij/util/xml/highlighting/DomElementsErrorPanel.java

@@ -162,7 +162,7 @@ public class DomElementsErrorPanel extends JPanel implements CommittablePanel, H
     }
 
     @Override
-    protected void fillDaemonCodeAnalyzerErrorsSatus(DaemonCodeAnalyzerStatus status, boolean fillErrorsCount) {
+    protected void fillDaemonCodeAnalyzerErrorsStatus(DaemonCodeAnalyzerStatus status, boolean fillErrorsCount) {
       for (int i = 0; i < status.errorCount.length; i++) {
         final HighlightSeverity minSeverity = SeverityRegistrar.getInstance(myProject).getSeverityByIndex(i);
         if (minSeverity == null) {