ensemble.controls.SearchBox Maven / Gradle / Ivy
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package ensemble.controls;
import ensemble.Ensemble2;
import ensemble.search.DocumentType;
import ensemble.search.IndexSearcher;
import ensemble.search.SearchResult;
import java.util.List;
import java.util.Map;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Point2D;
import javafx.geometry.Pos;
import javafx.geometry.Side;
import javafx.scene.control.*;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Region;
import javafx.scene.layout.VBox;
import javafx.stage.Popup;
import javafx.stage.WindowEvent;
import javafx.util.Duration;
import org.apache.lucene.queryParser.ParseException;
/**
* A mac style search box with drop down with results
*/
public class SearchBox extends Region {
private TextField textBox;
private Button clearButton;
private IndexSearcher indexSearcher;
private ContextMenu contextMenu = new ContextMenu();
private Popup extraInfoPopup = new Popup();
private Label infoName;
private Label infoDescription;
private VBox infoBox;
private Tooltip searchErrorTooltip = new Tooltip();
private Timeline searchErrorTooltipHidder = null;
public SearchBox() {
setId("SearchBox");
setMinHeight(24);
setPrefSize(150, 24);
setMaxHeight(24);
textBox = new TextField();
textBox.setPromptText("Search");
clearButton = new Button();
clearButton.setVisible(false);
getChildren().addAll(textBox, clearButton);
clearButton.setOnAction(new EventHandler() {
@Override public void handle(ActionEvent actionEvent) {
textBox.setText("");
textBox.requestFocus();
}
});
textBox.setOnKeyReleased(new EventHandler() {
@Override public void handle(KeyEvent keyEvent) {
if (keyEvent.getCode() == KeyCode.DOWN) {
///System.out.println("SearchBox.handle DOWN");
contextMenu.setFocused(true);
}
}
});
textBox.textProperty().addListener(new ChangeListener() {
@Override public void changed(ObservableValue observable, String oldValue, String newValue) {
clearButton.setVisible(textBox.getText().length() != 0);
if (textBox.getText().length() == 0) {
if (contextMenu != null) contextMenu.hide();
showError(null);
} else {
boolean haveResults = false;
Map> results = null;
try {
if (indexSearcher == null) indexSearcher = new IndexSearcher();
results = indexSearcher.search(
textBox.getText() + (textBox.getText().matches("\\w+") ? "*" : "")
);
// check if we have any results
for (List categoryResults: results.values()) {
if (categoryResults.size() > 0) {
haveResults = true;
break;
}
}
} catch (ParseException e) {
showError(e.getMessage().substring("Cannot parse ".length()));
}
if (haveResults) {
showError(null);
populateMenu(results);
if (!contextMenu.isShowing()) contextMenu.show(SearchBox.this, Side.BOTTOM, 10,-5);
} else {
if (searchErrorTooltip.getText() == null) showError("No matches");
contextMenu.hide();
}
contextMenu.setFocused(true);
}
}
});
// create info popup
infoBox = new VBox();
infoBox.setId("search-info-box");
infoBox.setFillWidth(true);
infoBox.setMinWidth(USE_PREF_SIZE);
infoBox.setPrefWidth(350);
infoName = new Label();
infoName.setId("search-info-name");
infoName.setMinHeight(USE_PREF_SIZE);
infoName.setPrefHeight(28);
infoDescription = new Label();
infoDescription.setId("search-info-description");
infoDescription.setWrapText(true);
infoDescription.setPrefWidth(infoBox.getPrefWidth()-24);
infoBox.getChildren().addAll(infoName,infoDescription);
extraInfoPopup.getContent().add(infoBox);
// hide info popup when context menu is hidden
contextMenu.setOnHidden(new EventHandler() {
@Override public void handle(WindowEvent windowEvent) {
extraInfoPopup.hide();
}
});
}
private void showError(String message) {
searchErrorTooltip.setText(message);
if (searchErrorTooltipHidder != null) searchErrorTooltipHidder.stop();
if (message != null) {
Point2D toolTipPos = textBox.localToScene(0, textBox.getLayoutBounds().getHeight());
double x = toolTipPos.getX() + textBox.getScene().getX() + textBox.getScene().getWindow().getX();
double y = toolTipPos.getY() + textBox.getScene().getY() + textBox.getScene().getWindow().getY();
searchErrorTooltip.show( textBox.getScene().getWindow(),x, y);
searchErrorTooltipHidder = new Timeline();
searchErrorTooltipHidder.getKeyFrames().add(
new KeyFrame(Duration.seconds(3),
new EventHandler() {
public void handle(ActionEvent t) {
searchErrorTooltip.hide();
searchErrorTooltip.setText(null);
}
}
)
);
searchErrorTooltipHidder.play();
} else {
searchErrorTooltip.hide();
}
}
private void populateMenu(Map> results) {
contextMenu.getItems().clear();
for (Map.Entry> entry : results.entrySet()) {
boolean first = true;
for(SearchResult result: entry.getValue()) {
final SearchResult sr = result;
final HBox hBox = new HBox();
hBox.setFillHeight(true);
Label itemLabel = new Label(result.getName());
itemLabel.getStyleClass().add("item-label");
if (first) {
first = false;
Label groupLabel = new Label(result.getDocumentType().getPluralDisplayName());
groupLabel.getStyleClass().add("group-label");
groupLabel.setAlignment(Pos.CENTER_RIGHT);
groupLabel.setMinWidth(USE_PREF_SIZE);
groupLabel.setPrefWidth(70);
hBox.getChildren().addAll(groupLabel,itemLabel);
} else {
Region spacer = new Region();
spacer.setMinWidth(USE_PREF_SIZE);
spacer.setPrefWidth(70);
hBox.getChildren().addAll(spacer,itemLabel);
}
// create a special node for hiding/showing popup content
final Region popRegion = new Region();
popRegion.getStyleClass().add("search-menu-item-popup-region");
popRegion.setPrefSize(10, 10);
hBox.getChildren().add(popRegion);
final String name = (result.getDocumentType() == DocumentType.SAMPLE) ? result.getName() :
result.getPackageName()+
((result.getClassName() != null) ? "."+result.getClassName() : "") +
((result.getName() != null) ? "."+result.getName() : "");
final String shortDescription = (result.getShortDescription().length() == 160) ? result.getShortDescription() +"..." : result.getShortDescription();
popRegion.opacityProperty().addListener(new ChangeListener() {
@Override public void changed(ObservableValue observable, Number oldValue, Number newValue) {
Platform.runLater( new Runnable() { // TODO runLater used here as a workaround for RT-14396
@Override public void run() {
if (popRegion.getOpacity() == 1) {
infoName.setText(name);
infoDescription.setText(shortDescription);
Point2D hBoxPos = hBox.localToScene(0, 0);
extraInfoPopup.show(getScene().getWindow(),
hBoxPos.getX() + contextMenu.getScene().getX() + contextMenu.getX() - infoBox.getPrefWidth() - 10,
hBoxPos.getY() + contextMenu.getScene().getY() + contextMenu.getY() - 27
);
}
}
});
}
});
// create menu item
CustomMenuItem menuItem = new CustomMenuItem(hBox, true);
menuItem.getStyleClass().add("search-menu-item");
contextMenu.getItems().add(menuItem);
// handle item selection
menuItem.setOnAction(new EventHandler() {
@Override public void handle(ActionEvent actionEvent) {
///System.out.println("SearchBox.handle menuItem.setOnAction");
Ensemble2.getEnsemble2().goToPage(sr.getEnsemblePath(),true);
}
});
}
}
}
@Override protected void layoutChildren() {
textBox.resize(getWidth(),getHeight());
clearButton.resizeRelocate(getWidth()-18,6,12,13);
}
}
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