/* Copyright 2016 Evan A. Thompson
*
* 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.github.alvanson.xltsearch;
import java.io.File;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ReadOnlyStringWrapper;
import javafx.beans.property.SimpleObjectProperty;
import javafx.collections.ListChangeListener;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Label;
import javafx.scene.control.ProgressBar;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableRow;
import javafx.scene.control.TableView;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.image.Image;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.TransferMode;
import javafx.stage.DirectoryChooser;
import javafx.stage.Stage;
public class App extends Application {
public static final String XLT_VERSION = "0.1.1-SNAPSHOT";
private static final String APP_CONFIG_FILE = ".xltsearch";
private static final String APP_CONFIG_COMMENT = "XLTSearch App Configuration";
private static final int DEFAULT_LIMIT = 100;
private static final int SCENE_WIDTH = 640;
private static final int SCENE_HEIGHT = 480;
@FXML private Label folderPathLabel;
@FXML private Label indexDetailsLabel;
@FXML private TextField queryField;
@FXML private Button searchButton;
@FXML private TextField limitField;
@FXML private Label searchMessageLabel;
@FXML private TableView<SearchResult> resultsTable;
@FXML private TableColumn<SearchResult,String> fileNameCol;
@FXML private TableColumn<SearchResult,String> titleCol;
@FXML private TableColumn<SearchResult,String> scoreCol;
@FXML private TextArea detailsField;
@FXML private Label indexMessageLabel;
@FXML private ProgressBar indexProgress;
@FXML private Button messagesButton;
private Stage stage;
private Configurator configurator;
private MessageDisplay messageDisplay;
private PersistentProperties properties;
private final ObjectProperty<Catalog> catalog = new SimpleObjectProperty<>();
public static void main(String[] args) {
launch(args);
}
@Override
public void start(final Stage stage) {
this.stage = stage;
// initialize UI
stage.setTitle("XLTSearch " + XLT_VERSION);
stage.getIcons().addAll(new Image(getClass().getResourceAsStream("/icon32.png")),
new Image(getClass().getResourceAsStream("/icon22.png")),
new Image(getClass().getResourceAsStream("/icon16.png")));
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("/app.fxml"));
fxmlLoader.setController(this);
try {
Scene scene = new Scene(fxmlLoader.load(), SCENE_WIDTH, SCENE_HEIGHT);
stage.setScene(scene);
stage.show();
} catch (Exception ex) {
DetailedAlert alert = new DetailedAlert(DetailedAlert.AlertType.ERROR);
alert.setTitle("Error");
alert.setHeaderText("Exception while loading App");
alert.setDetailsText(MessageLogger.getStackTrace(ex));
alert.showAndWait();
}
// error notification
MessageLogger.messagesProperty().addListener(
(ListChangeListener.Change<? extends Message> c) -> {
while (c.next()) {
notify(c.getAddedSubList());
}
});
// load application properties
properties = new PersistentProperties(
new File(System.getProperty("user.home") + File.separator + APP_CONFIG_FILE),
APP_CONFIG_COMMENT, null);
// open last folder with last config
String lastFolder = properties.getProperty("last.folder");
String lastConfig = properties.getProperty("last.config"); // ok if null
// check for existence of last folder, prompt user if null/not found
File dir = lastFolder == null ? null : new File(lastFolder);
if (dir == null || !dir.isDirectory()) {
Alert alert = new Alert(Alert.AlertType.INFORMATION);
alert.setTitle("Welcome");
alert.setHeaderText("Welcome to XLTSearch!");
alert.setContentText("Please choose a folder to search.");
alert.showAndWait();
DirectoryChooser directoryChooser = new DirectoryChooser();
dir = directoryChooser.showDialog(stage);
if (dir == null) {
// user cancelled "Open Folder"
Platform.exit();
return;
}
}
// open folder and load config
catalog.set(new Catalog(dir));
catalog.get().open(lastConfig);
}
@FXML
private void initialize() {
// replaces CONSTRAINED_RESIZE_POLICY
scoreCol.prefWidthProperty().bind(
resultsTable.widthProperty()
.subtract(fileNameCol.widthProperty())
.subtract(titleCol.widthProperty())
);
searchButton.defaultButtonProperty().bind(searchButton.focusedProperty());
limitField.setText(Integer.toString(DEFAULT_LIMIT));
// DIALOGS
configurator = new Configurator();
messageDisplay = new MessageDisplay();
// UI BINDINGS
configurator.catalogProperty().bind(catalog);
catalog.addListener((o, oldValue, newValue) -> {
folderPathLabel.setText(newValue.getPath());
// bind information controls to new catalog
indexDetailsLabel.textProperty().unbind();
indexDetailsLabel.textProperty().bind(newValue.indexDetailsProperty());
searchMessageLabel.textProperty().unbind();
searchMessageLabel.textProperty().bind(newValue.searchDetailsProperty());
resultsTable.itemsProperty().unbind();
resultsTable.itemsProperty().bind(newValue.searchResultsProperty());
indexMessageLabel.textProperty().unbind();
indexMessageLabel.textProperty().bind(newValue.indexMessageProperty());
indexProgress.progressProperty().unbind();
indexProgress.progressProperty().bind(newValue.indexProgressProperty());
});
fileNameCol.setCellValueFactory((r) ->
new ReadOnlyStringWrapper(r.getValue().file.getName()));
titleCol.setCellValueFactory((r) ->
new ReadOnlyStringWrapper(r.getValue().title));
scoreCol.setCellValueFactory((r) ->
new ReadOnlyStringWrapper(String.format("%.0f", r.getValue().score*100)));
// CALLBACKS
resultsTable.getSelectionModel().selectedItemProperty().addListener(
(o, oldValue, newValue) -> {
if (newValue != null) {
detailsField.setText(newValue.details);
} else {
detailsField.setText("");
}
});
resultsTable.setOnKeyPressed((event) -> {
SearchResult result = resultsTable.getSelectionModel().getSelectedItem();
if (result != null && event.getCode() == KeyCode.ENTER) {
catalog.get().openFile(result.file);
}
});
resultsTable.setRowFactory((tv) -> {
final TableRow<SearchResult> row = new TableRow<>();
// open file on double-click
row.setOnMouseClicked((event) -> {
if (!row.isEmpty() && event.getClickCount() == 2) {
catalog.get().openFile(row.getItem().file);
}
});
// enable drag-and-drop
row.setOnDragDetected((event) -> {
if (!row.isEmpty()) {
Dragboard db = row.startDragAndDrop(TransferMode.COPY, TransferMode.LINK);
ClipboardContent content = new ClipboardContent();
content.putFiles(Collections.singletonList(row.getItem().file));
db.setContent(content);
event.consume();
}
});
return row;
});
}
@FXML
private void openFolder() {
if (catalog.get().isIndexing()) {
Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
alert.setTitle("Confirmation");
alert.setHeaderText("Indexing in progress");
alert.setContentText("Opening a new folder will cancel indexing. Continue?");
Optional<ButtonType> result = alert.showAndWait();
// escape on cancel/close
if (!result.isPresent() || result.get() != ButtonType.OK) {
return;
}
}
DirectoryChooser directoryChooser = new DirectoryChooser();
File dir = directoryChooser.showDialog(stage);
if (dir != null) {
if (catalog.get() != null) {
catalog.get().close();
}
catalog.set(new Catalog(dir));
} // do nothing on cancel
}
@FXML
private void configure() {
configurator.show();
}
// validate input and execute search
@FXML
private void search() {
// validate limit field
String limitStr = limitField.getText();
limitStr = limitStr.replaceAll("[^\\d]","");
if (limitStr.equals("")) {
limitStr = Integer.toString(DEFAULT_LIMIT);
}
limitField.setText(limitStr);
// results table clears automatically
detailsField.setText("");
// execute search
int limit = Integer.parseInt(limitStr);
catalog.get().search(queryField.getText(), limit);
}
@FXML
private void searchOnEnter(KeyEvent event) {
if (event.getCode() == KeyCode.ENTER) {
search();
}
}
// handle messages received from MessageLogger
private void notify(List<? extends Message> messages) {
// immediately display errors
for (Message msg : messages) {
if (msg.level.compareTo(Message.Level.ERROR) >= 0) {
DetailedAlert alert = new DetailedAlert(Alert.AlertType.ERROR);
alert.setTitle("Error");
alert.setHeaderText(msg.summary);
alert.setDetailsText(msg.details);
alert.show(); // showAndWait() causes repeats and race conditions
}
}
// restyle button to indicate that new messages are available
if (messages.size() > 0 && !messagesButton.getStyleClass().contains("alert")) {
messagesButton.getStyleClass().add("alert");
}
}
@FXML
private void displayMessages() {
messagesButton.getStyleClass().remove("alert");
messageDisplay.show();
}
@Override
public void stop() {
// save last folder and config, close catalog
Catalog c = catalog.get();
if (c != null) {
properties.setProperty("last.folder", c.getPath());
String configName = c.getConfigName();
if (configName != null) {
properties.setProperty("last.config", configName);
} else {
properties.remove("last.config");
}
c.close();
}
}
}
