reopen all projects on startup (IDEA-56150)

platform/platform-impl/src/com/intellij/ide/AppLifecycleListener.java

@@ -32,6 +32,12 @@ public interface AppLifecycleListener {
   void projectOpenFailed();
   void welcomeScreenDisplayed();
 
+  /**
+   * Fired before saving settings and before final 'can exit?' check. App may end up not closing if some of the 'can exit?' listeners
+   * return false.
+   */
+  void appClosing();
+
   abstract class Adapter implements AppLifecycleListener {
     public void appFrameCreated(final String[] commandLineArgs, @NotNull final Ref<Boolean> willOpenProject) {
     }
@@ -47,5 +53,8 @@ public interface AppLifecycleListener {
 
     public void welcomeScreenDisplayed() {
     }
+
+    public void appClosing() {
+    }
   }
 }

platform/platform-impl/src/com/intellij/ide/RecentProjectsManagerBase.java

@@ -45,6 +45,7 @@ public abstract class RecentProjectsManagerBase implements PersistentStateCompon
 
   public static class State {
     public List<String> recentPaths = new ArrayList<String>();
+    public List<String> openPaths = new ArrayList<String>();
     public String lastPath;
   }
 
@@ -123,8 +124,13 @@ public abstract class RecentProjectsManagerBase implements PersistentStateCompon
     Project[] openProjects = ProjectManager.getInstance().getOpenProjects();
     if (openProjects.length == 0) {
       myState.lastPath = null;
+      myState.openPaths = Collections.emptyList();
     } else {
       myState.lastPath = getProjectPath(openProjects[openProjects.length - 1]);
+      myState.openPaths = new ArrayList<String>();
+      for (Project openProject : openProjects) {
+        myState.openPaths.add(getProjectPath(openProject));
+      }
     }
   }
 
@@ -292,9 +298,17 @@ public abstract class RecentProjectsManagerBase implements PersistentStateCompon
       if (projectFromCommandLine != null) return;
       GeneralSettings generalSettings = GeneralSettings.getInstance();
       if (generalSettings.isReopenLastProject()) {
-        String lastProjectPath = getLastProjectPath();
-        if (lastProjectPath != null) {
-          doOpenProject(lastProjectPath, null, false);
+        List<String> openPaths = myState.openPaths;
+        if (openPaths.size() > 0) {
+          for (String openPath : openPaths) {
+            doOpenProject(openPath, null, true);
+          }
+        }
+        else {
+          String lastProjectPath = getLastProjectPath();
+          if (lastProjectPath != null) {
+            doOpenProject(lastProjectPath, null, false);
+          }
         }
       }
     }
@@ -306,5 +320,9 @@ public abstract class RecentProjectsManagerBase implements PersistentStateCompon
     public void projectOpenFailed() {
       updateLastProjectPath();
     }
+
+    public void appClosing() {
+      updateLastProjectPath();
+    }
   }
 }

platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java

@@ -688,6 +688,8 @@ public class ApplicationImpl extends ComponentManagerImpl implements Application
           }
         }
 
+        getMessageBus().syncPublisher(AppLifecycleListener.TOPIC).appClosing();
+
         FileDocumentManager.getInstance().saveAllDocuments();
 
         saveSettings();