Examples with BeforeSelectionHandler com.google.gwt.event.logical.shared.BeforeSelectionHandler used on opensource projects

Example 1 with BeforeSelectionHandler

use of com.google.gwt.event.logical.shared.BeforeSelectionHandler in project opentsdb by OpenTSDB.

the class QueryUi method onModuleLoad.

/**
   * This is the entry point method.
   */
public void onModuleLoad() {
    asyncGetJson(AGGREGATORS_URL, new GotJsonCallback() {

        public void got(final JSONValue json) {
            // Do we need more manual type checking?  Not sure what will happen
            // in the browser if something other than an array is returned.
            final JSONArray aggs = json.isArray();
            for (int i = 0; i < aggs.size(); i++) {
                aggregators.add(aggs.get(i).isString().stringValue());
            }
            ((MetricForm) metrics.getWidget(0)).setAggregators(aggregators);
            refreshFromQueryString();
            refreshGraph();
        }
    });
    // All UI elements need to regenerate the graph when changed.
    {
        final ValueChangeHandler<Date> vch = new ValueChangeHandler<Date>() {

            public void onValueChange(final ValueChangeEvent<Date> event) {
                refreshGraph();
            }
        };
        TextBox tb = start_datebox.getTextBox();
        tb.addBlurHandler(refreshgraph);
        tb.addKeyPressHandler(refreshgraph);
        start_datebox.addValueChangeHandler(vch);
        tb = end_datebox.getTextBox();
        tb.addBlurHandler(refreshgraph);
        tb.addKeyPressHandler(refreshgraph);
        end_datebox.addValueChangeHandler(vch);
    }
    autoreoload_interval.addBlurHandler(refreshgraph);
    autoreoload_interval.addKeyPressHandler(refreshgraph);
    yrange.addBlurHandler(refreshgraph);
    yrange.addKeyPressHandler(refreshgraph);
    y2range.addBlurHandler(refreshgraph);
    y2range.addKeyPressHandler(refreshgraph);
    ylog.addClickHandler(new AdjustYRangeCheckOnClick(ylog, yrange));
    y2log.addClickHandler(new AdjustYRangeCheckOnClick(y2log, y2range));
    ylog.addClickHandler(refreshgraph);
    y2log.addClickHandler(refreshgraph);
    ylabel.addBlurHandler(refreshgraph);
    ylabel.addKeyPressHandler(refreshgraph);
    y2label.addBlurHandler(refreshgraph);
    y2label.addKeyPressHandler(refreshgraph);
    yformat.addBlurHandler(refreshgraph);
    yformat.addKeyPressHandler(refreshgraph);
    y2format.addBlurHandler(refreshgraph);
    y2format.addKeyPressHandler(refreshgraph);
    wxh.addBlurHandler(refreshgraph);
    wxh.addKeyPressHandler(refreshgraph);
    global_annotations.addBlurHandler(refreshgraph);
    global_annotations.addKeyPressHandler(refreshgraph);
    horizontalkey.addClickHandler(refreshgraph);
    keybox.addClickHandler(refreshgraph);
    nokey.addClickHandler(refreshgraph);
    smooth.addClickHandler(refreshgraph);
    styles.addChangeHandler(refreshgraph);
    yrange.setValidationRegexp(// Nothing or
    "^(" + // "[start
    "|\\[([-+.0-9eE]+|\\*)?" + //   :end]"
    ":([-+.0-9eE]+|\\*)?\\])$");
    yrange.setVisibleLength(5);
    // MAX=2^26=20 chars: "[-$MAX:$MAX]"
    yrange.setMaxLength(44);
    yrange.setText("[0:]");
    y2range.setValidationRegexp(// Nothing or
    "^(" + // "[start
    "|\\[([-+.0-9eE]+|\\*)?" + //   :end]"
    ":([-+.0-9eE]+|\\*)?\\])$");
    y2range.setVisibleLength(5);
    // MAX=2^26=20 chars: "[-$MAX:$MAX]"
    y2range.setMaxLength(44);
    y2range.setText("[0:]");
    y2range.setEnabled(false);
    y2log.setEnabled(false);
    ylabel.setVisibleLength(10);
    // Arbitrary limit.
    ylabel.setMaxLength(50);
    y2label.setVisibleLength(10);
    // Arbitrary limit.
    y2label.setMaxLength(50);
    y2label.setEnabled(false);
    // Nothing or at least one %?
    yformat.setValidationRegexp("^(|.*%..*)$");
    yformat.setVisibleLength(10);
    // Arbitrary limit.
    yformat.setMaxLength(16);
    // Nothing or at least one %?
    y2format.setValidationRegexp("^(|.*%..*)$");
    y2format.setVisibleLength(10);
    // Arbitrary limit.
    y2format.setMaxLength(16);
    y2format.setEnabled(false);
    // 100x100
    wxh.setValidationRegexp("^[1-9][0-9]{2,}x[1-9][0-9]{2,}$");
    wxh.setVisibleLength(9);
    // 99999x99999
    wxh.setMaxLength(11);
    wxh.setText((Window.getClientWidth() - 20) + "x" + (Window.getClientHeight() * 4 / 5));
    final FlexTable table = new FlexTable();
    table.setText(0, 0, "From");
    {
        final HorizontalPanel hbox = new HorizontalPanel();
        hbox.add(new InlineLabel("To"));
        final Anchor now = new Anchor("(now)");
        now.addClickHandler(new ClickHandler() {

            public void onClick(final ClickEvent event) {
                end_datebox.setValue(new Date());
                refreshGraph();
            }
        });
        hbox.add(now);
        hbox.add(autoreload);
        hbox.setWidth("100%");
        table.setWidget(0, 1, hbox);
    }
    autoreload.addValueChangeHandler(new ValueChangeHandler<Boolean>() {

        @Override
        public void onValueChange(final ValueChangeEvent<Boolean> event) {
            if (autoreload.getValue()) {
                final HorizontalPanel hbox = new HorizontalPanel();
                hbox.setWidth("100%");
                hbox.add(new InlineLabel("Every:"));
                hbox.add(autoreoload_interval);
                hbox.add(new InlineLabel("seconds"));
                table.setWidget(1, 1, hbox);
                if (autoreoload_interval.getValue().isEmpty()) {
                    autoreoload_interval.setValue("15");
                }
                autoreoload_interval.setFocus(true);
                // Force refreshGraph.
                lastgraphuri = "";
                // Trigger the 1st auto-reload
                refreshGraph();
            } else {
                table.setWidget(1, 1, end_datebox);
            }
        }
    });
    // >=5s
    autoreoload_interval.setValidationRegexp("^([5-9]|[1-9][0-9]+)$");
    autoreoload_interval.setMaxLength(4);
    autoreoload_interval.setVisibleLength(8);
    table.setWidget(1, 0, start_datebox);
    table.setWidget(1, 1, end_datebox);
    {
        final HorizontalPanel hbox = new HorizontalPanel();
        hbox.add(new InlineLabel("WxH:"));
        hbox.add(wxh);
        table.setWidget(0, 3, hbox);
    }
    {
        final HorizontalPanel hbox = new HorizontalPanel();
        hbox.add(global_annotations);
        table.setWidget(0, 4, hbox);
    }
    {
        addMetricForm("metric 1", 0);
        metrics.selectTab(0);
        metrics.add(new InlineLabel("Loading..."), "+");
        metrics.addBeforeSelectionHandler(new BeforeSelectionHandler<Integer>() {

            public void onBeforeSelection(final BeforeSelectionEvent<Integer> event) {
                final int item = event.getItem();
                final int nitems = metrics.getWidgetCount();
                if (item == nitems - 1) {
                    // Last item: the "+" was clicked.
                    event.cancel();
                    final MetricForm metric = addMetricForm("metric " + nitems, item);
                    metrics.selectTab(item);
                    metric.setFocus(true);
                }
            }
        });
        table.setWidget(2, 0, metrics);
    }
    table.getFlexCellFormatter().setColSpan(2, 0, 2);
    table.getFlexCellFormatter().setRowSpan(1, 3, 2);
    final DecoratedTabPanel optpanel = new DecoratedTabPanel();
    optpanel.add(makeAxesPanel(), "Axes");
    optpanel.add(makeKeyPanel(), "Key");
    optpanel.add(makeStylePanel(), "Style");
    optpanel.selectTab(0);
    table.setWidget(1, 3, optpanel);
    table.getFlexCellFormatter().setColSpan(1, 3, 2);
    final DecoratorPanel decorator = new DecoratorPanel();
    decorator.setWidget(table);
    final VerticalPanel graphpanel = new VerticalPanel();
    graphpanel.add(decorator);
    {
        final VerticalPanel graphvbox = new VerticalPanel();
        graphvbox.add(graphstatus);
        graph.setVisible(false);
        // Put the graph image element and the zoombox elements inside the absolute panel
        graphbox.add(graph, 0, 0);
        zoom_box.setVisible(false);
        graphbox.add(zoom_box, 0, 0);
        graph.addMouseOverHandler(new MouseOverHandler() {

            public void onMouseOver(final MouseOverEvent event) {
                final Style style = graphbox.getElement().getStyle();
                style.setCursor(Cursor.CROSSHAIR);
            }
        });
        graph.addMouseOutHandler(new MouseOutHandler() {

            public void onMouseOut(final MouseOutEvent event) {
                final Style style = graphbox.getElement().getStyle();
                style.setCursor(Cursor.AUTO);
            }
        });
        graphvbox.add(graphbox);
        graph.addErrorHandler(new ErrorHandler() {

            public void onError(final ErrorEvent event) {
                graphstatus.setText("Oops, failed to load the graph.");
            }
        });
        graph.addLoadHandler(new LoadHandler() {

            public void onLoad(final LoadEvent event) {
                graphbox.setWidth(graph.getWidth() + "px");
                graphbox.setHeight(graph.getHeight() + "px");
            }
        });
        graphpanel.add(graphvbox);
    }
    final DecoratedTabPanel mainpanel = new DecoratedTabPanel();
    mainpanel.setWidth("100%");
    mainpanel.add(graphpanel, "Graph");
    mainpanel.add(stats_table, "Stats");
    mainpanel.add(logs, "Logs");
    mainpanel.add(build_data, "Version");
    mainpanel.selectTab(0);
    mainpanel.addBeforeSelectionHandler(new BeforeSelectionHandler<Integer>() {

        public void onBeforeSelection(final BeforeSelectionEvent<Integer> event) {
            clearError();
            final int item = event.getItem();
            switch(item) {
                case 1:
                    refreshStats();
                    return;
                case 2:
                    refreshLogs();
                    return;
                case 3:
                    refreshVersion();
                    return;
            }
        }
    });
    final VerticalPanel root = new VerticalPanel();
    root.setWidth("100%");
    root.add(current_error);
    current_error.setVisible(false);
    current_error.addStyleName("dateBoxFormatError");
    root.add(mainpanel);
    RootPanel.get("queryuimain").add(root);
    // Must be done at the end, once all the widgets are attached.
    ensureSameWidgetSize(optpanel);
    History.addHistoryListener(this);
}