Example usage for javafx.beans.property Property addListener

Introduction

In this page you can find the example usage for javafx.beans.property Property addListener.

Prototype

void addListener(ChangeListener<? super T> listener);

Source Link

Document

Adds a ChangeListener which will be notified whenever the value of the ObservableValue changes.

Usage

From source file:gov.va.isaac.gui.preferences.PreferencesViewController.java

public void aboutToShow() {
    // Using allValid_ to prevent rerunning content of aboutToShow()
    if (allValid_ == null) {
        // These listeners are for debug and testing only. They may be removed at any time.
        UserProfileBindings userProfileBindings = AppContext.getService(UserProfileBindings.class);
        for (Property<?> property : userProfileBindings.getAll()) {
            property.addListener(new ChangeListener<Object>() {
                @Override/*ww  w . j a v a2s.c o  m*/
                public void changed(ObservableValue<? extends Object> observable, Object oldValue,
                        Object newValue) {
                    logger.debug("{} property changed from {} to {}", property.getName(), oldValue, newValue);
                }
            });
        }

        // load fields before initializing allValid_
        // in case plugin.validationFailureMessageProperty() initialized by getNode()
        tabPane_.getTabs().clear();
        List<PreferencesPluginViewI> sortableList = new ArrayList<>();
        Comparator<PreferencesPluginViewI> comparator = new Comparator<PreferencesPluginViewI>() {
            @Override
            public int compare(PreferencesPluginViewI o1, PreferencesPluginViewI o2) {
                if (o1.getTabOrder() == o2.getTabOrder()) {
                    return o1.getName().compareTo(o2.getName());
                } else {
                    return o1.getTabOrder() - o2.getTabOrder();
                }
            }
        };
        for (PreferencesPluginViewI plugin : plugins_) {
            sortableList.add(plugin);
        }
        Collections.sort(sortableList, comparator);
        for (PreferencesPluginViewI plugin : sortableList) {
            logger.debug("Adding PreferencesPluginView tab \"{}\"", plugin.getName());
            Label tabLabel = new Label(plugin.getName());

            tabLabel.setMaxHeight(Double.MAX_VALUE);
            tabLabel.setMaxWidth(Double.MAX_VALUE);
            Tab pluginTab = new Tab();
            pluginTab.setGraphic(tabLabel);
            Region content = plugin.getContent();
            content.setMaxWidth(Double.MAX_VALUE);
            content.setMaxHeight(Double.MAX_VALUE);
            content.setPadding(new Insets(5.0));

            Label errorMessageLabel = new Label();
            errorMessageLabel.textProperty().bind(plugin.validationFailureMessageProperty());
            errorMessageLabel.setAlignment(Pos.BOTTOM_CENTER);
            TextErrorColorHelper.setTextErrorColor(errorMessageLabel);

            VBox vBox = new VBox();
            vBox.getChildren().addAll(errorMessageLabel, content);
            vBox.setMaxWidth(Double.MAX_VALUE);
            vBox.setAlignment(Pos.TOP_CENTER);

            plugin.validationFailureMessageProperty().addListener(new ChangeListener<String>() {
                @Override
                public void changed(ObservableValue<? extends String> observable, String oldValue,
                        String newValue) {
                    if (newValue != null && !StringUtils.isEmpty(newValue)) {
                        TextErrorColorHelper.setTextErrorColor(tabLabel);
                    } else {
                        TextErrorColorHelper.clearTextErrorColor(tabLabel);
                    }
                }
            });
            //Initialize, if stored value is wrong
            if (StringUtils.isNotEmpty(plugin.validationFailureMessageProperty().getValue())) {
                TextErrorColorHelper.setTextErrorColor(tabLabel);
            }
            pluginTab.setContent(vBox);
            tabPane_.getTabs().add(pluginTab);
        }

        allValid_ = new ValidBooleanBinding() {
            {
                ArrayList<ReadOnlyStringProperty> pluginValidationFailureMessages = new ArrayList<>();
                for (PreferencesPluginViewI plugin : plugins_) {
                    pluginValidationFailureMessages.add(plugin.validationFailureMessageProperty());
                }
                bind(pluginValidationFailureMessages
                        .toArray(new ReadOnlyStringProperty[pluginValidationFailureMessages.size()]));
                setComputeOnInvalidate(true);
            }

            @Override
            protected boolean computeValue() {
                for (PreferencesPluginViewI plugin : plugins_) {
                    if (plugin.validationFailureMessageProperty().get() != null
                            && plugin.validationFailureMessageProperty().get().length() > 0) {
                        this.setInvalidReason(plugin.validationFailureMessageProperty().get());

                        logger.debug("Setting PreferencesView allValid_ to false because \"{}\"",
                                this.getReasonWhyInvalid().get());
                        return false;
                    }
                }

                logger.debug("Setting PreferencesView allValid_ to true");

                this.clearInvalidReason();
                return true;
            }
        };

        okButton_.disableProperty().bind(allValid_.not());
        // set focus on default
        // Platform.runLater(...);
    }

    // Reload persisted values every time view opened
    for (PreferencesPluginViewI plugin : plugins_) {
        plugin.getContent();
    }
}

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