reindexing progress bar

gui/griffon-app/controllers/com/muwire/gui/LibrarySyncController.groovy

@@ -29,6 +29,7 @@ class LibrarySyncController {
 
     @ControllerAction
     void reindex() {
-
+        view.startReindex()
+        model.startReindex()
     }
 }

gui/griffon-app/i18n/messages.properties

@@ -778,7 +778,8 @@ LIBRARY_SCAN_PREVIEW_COLUMN_FILE=File
 LIBRARY_SCAN_PREVIEW_COLUMN_SHARED=Shared
 LIBRARY_SCAN_PREVIEW_COLUMN_MODIFIED=Modified
 LIBRARY_SCAN_PREVIEW_COLLECTIONS_BODY=The following collections may be affected
-LIBRARY_SCAN_PREVIEW_REINDEX=Re-Index
+LIBRARY_SCAN_PREVIEW_REINDEX=Re-index
+LIBRARY_SCAN_REINDEX_TITLE=Re-indexing files that are out of sync
 
 ## Tooltips
 

gui/griffon-app/models/com/muwire/gui/LibrarySyncModel.groovy

@@ -4,6 +4,8 @@ import com.muwire.core.Core
 import com.muwire.core.InfoHash
 import com.muwire.core.SharedFile
 import com.muwire.core.collections.FileCollection
+import com.muwire.core.files.FileHashedEvent
+import com.muwire.core.files.FileModifiedEvent
 import griffon.core.artifact.GriffonModel
 import griffon.inject.MVCMember
 import griffon.metadata.ArtifactProviderFor
@@ -72,4 +74,28 @@ class LibrarySyncModel {
             view.scanFinished()
         }
     }
+
+    void startReindex() {
+        def observer = new ReindexObserver()
+        core.eventBus.register(FileHashedEvent.class, observer)
+        def event = new FileModifiedEvent(sharedFiles: staleFiles)
+        core.eventBus.publish(event)
+    }
+
+    private class ReindexObserver {
+        private final Set<SharedFile> remaining = new HashSet<>(staleFiles)
+        private final int total = remaining.size()
+        void onFileHashedEvent(FileHashedEvent event) {
+            runInsideUIAsync {
+                if (!remaining.remove(event.original))
+                    return
+                int percentage = (int)((total - remaining.size()) * 100 / total)
+                view.updateReindexProgressBar(percentage)
+                if (remaining.isEmpty()) {
+                    core.eventBus.unregister(FileHashedEvent.class, this)
+                    view.reindexComplete()
+                }
+            }
+        }
+    }
 }

gui/griffon-app/views/com/muwire/gui/LibrarySyncView.groovy

@@ -16,6 +16,8 @@ import javax.swing.JProgressBar
 import javax.swing.JTable
 import java.awt.BorderLayout
 import java.awt.Dimension
+import java.awt.event.WindowAdapter
+import java.awt.event.WindowEvent
 
 import static com.muwire.gui.Translator.trans
 
@@ -43,6 +45,8 @@ class LibrarySyncView {
     private JProgressBar scanProgressBar
     JProgressBar reindexProgressBar
 
+    private final CloseAdapter closeAdapter = new CloseAdapter()
+
     void initUI() {
         mainFrame = (JFrame) application.windowManager.findWindow("main-frame")
         rowHeight = (int)application.context.get("row-height")
@@ -61,6 +65,7 @@ class LibrarySyncView {
         }
 
         scanDialog.with {
+            addWindowListener(closeAdapter)
             getContentPane().add(scanPanel)
             pack()
             setLocationRelativeTo(mainFrame)
@@ -146,6 +151,7 @@ class LibrarySyncView {
 
         Dimension dimension = mainFrame.getSize()
         previewDialog.with {
+            addWindowListener(closeAdapter)
             getContentPane().add(previewPanel)
             setSize((int)(dimension.getWidth() - 100), (int)(dimension.getHeight() - 100))
             setLocationRelativeTo(mainFrame)
@@ -157,4 +163,42 @@ class LibrarySyncView {
         nextDialog = null
         previewDialog.setVisible(false)
     }
+
+    void startReindex() {
+        previewDialog.setVisible(false)
+        reindexDialog = new JDialog(mainFrame, trans("LIBRARY_SCAN_REINDEX_TITLE"), true)
+        nextDialog = reindexDialog
+
+        JPanel reindexPanel = builder.panel {
+            borderLayout()
+            panel(constraints: BorderLayout.NORTH) {
+                label(text: trans("LIBRARY_SCAN_REINDEX_TITLE"))
+            }
+            reindexProgressBar = progressBar(constraints: BorderLayout.CENTER)
+        }
+
+        reindexDialog.with {
+            addWindowListener(closeAdapter)
+            getContentPane().add(reindexPanel)
+            pack()
+            setLocationRelativeTo(mainFrame)
+            setDefaultCloseOperation(DISPOSE_ON_CLOSE)
+        }
+    }
+
+    void updateReindexProgressBar(int value) {
+        reindexProgressBar.setValue(value)
+    }
+
+    void reindexComplete() {
+        nextDialog = null
+        reindexDialog.setVisible(false)
+    }
+
+    private class CloseAdapter extends WindowAdapter {
+        void windowClosed(WindowEvent e) {
+            nextDialog?.setVisible(false)
+            nextDialog = null
+        }
+    }
 }