From 5da14042f70711ea5cf66e034699730335462f66 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 5 May 2024 14:08:03 +0200
Subject: Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 web/gui/src/dashboard.js/charting/dygraph.js | 1065 --------------------------
 1 file changed, 1065 deletions(-)
 delete mode 100644 web/gui/src/dashboard.js/charting/dygraph.js

(limited to 'web/gui/src/dashboard.js/charting/dygraph.js')

diff --git a/web/gui/src/dashboard.js/charting/dygraph.js b/web/gui/src/dashboard.js/charting/dygraph.js
deleted file mode 100644
index 4b44e7c43..000000000
--- a/web/gui/src/dashboard.js/charting/dygraph.js
+++ /dev/null
@@ -1,1065 +0,0 @@
-// dygraph
-
-// Codacy declarations
-/* global smoothPlotter */
-/* global Dygraph */
-
-NETDATA.dygraph = {
-    smooth: false
-};
-
-NETDATA.dygraphToolboxPanAndZoom = function (state, after, before) {
-    if (after < state.netdata_first) {
-        after = state.netdata_first;
-    }
-
-    if (before > state.netdata_last) {
-        before = state.netdata_last;
-    }
-
-    state.setMode('zoom');
-    NETDATA.globalSelectionSync.stop();
-    NETDATA.globalSelectionSync.delay();
-    state.tmp.dygraph_user_action = true;
-    state.tmp.dygraph_force_zoom = true;
-    // state.log('toolboxPanAndZoom');
-    state.updateChartPanOrZoom(after, before);
-    NETDATA.globalPanAndZoom.setMaster(state, after, before);
-};
-
-NETDATA.dygraphSetSelection = function (state, t) {
-    if (typeof state.tmp.dygraph_instance !== 'undefined') {
-        let r = state.calculateRowForTime(t);
-        if (r !== -1) {
-            state.tmp.dygraph_instance.setSelection(r);
-            return true;
-        } else {
-            state.tmp.dygraph_instance.clearSelection();
-            state.legendShowUndefined();
-        }
-    }
-
-    return false;
-};
-
-NETDATA.dygraphClearSelection = function (state) {
-    if (typeof state.tmp.dygraph_instance !== 'undefined') {
-        state.tmp.dygraph_instance.clearSelection();
-    }
-    return true;
-};
-
-NETDATA.dygraphSmoothInitialize = function (callback) {
-    $.ajax({
-        url: NETDATA.dygraph_smooth_js,
-        cache: true,
-        dataType: "script",
-        xhrFields: {withCredentials: true} // required for the cookie
-    })
-        .done(function () {
-            NETDATA.dygraph.smooth = true;
-            smoothPlotter.smoothing = 0.3;
-        })
-        .fail(function () {
-            NETDATA.dygraph.smooth = false;
-        })
-        .always(function () {
-            if (typeof callback === "function") {
-                return callback();
-            }
-        });
-};
-
-NETDATA.dygraphInitialize = function (callback) {
-    if (typeof netdataNoDygraphs === 'undefined' || !netdataNoDygraphs) {
-        $.ajax({
-            url: NETDATA.dygraph_js,
-            cache: true,
-            dataType: "script",
-            xhrFields: {withCredentials: true} // required for the cookie
-        })
-            .done(function () {
-                NETDATA.registerChartLibrary('dygraph', NETDATA.dygraph_js);
-            })
-            .fail(function () {
-                NETDATA.chartLibraries.dygraph.enabled = false;
-                NETDATA.error(100, NETDATA.dygraph_js);
-            })
-            .always(function () {
-                if (NETDATA.chartLibraries.dygraph.enabled && NETDATA.options.current.smooth_plot) {
-                    NETDATA.dygraphSmoothInitialize(callback);
-                } else if (typeof callback === "function") {
-                    return callback();
-                }
-            });
-    } else {
-        NETDATA.chartLibraries.dygraph.enabled = false;
-        if (typeof callback === "function") {
-            return callback();
-        }
-    }
-};
-
-NETDATA.dygraphChartUpdate = function (state, data) {
-    let dygraph = state.tmp.dygraph_instance;
-
-    if (typeof dygraph === 'undefined') {
-        return NETDATA.dygraphChartCreate(state, data);
-    }
-
-    // when the chart is not visible, and hidden
-    // if there is a window resize, dygraph detects
-    // its element size as 0x0.
-    // this will make it re-appear properly
-
-    if (state.tm.last_unhidden > state.tmp.dygraph_last_rendered) {
-        dygraph.resize();
-    }
-
-    let options = {
-        file: data.result.data,
-        colors: state.chartColors(),
-        labels: data.result.labels,
-        //labelsDivWidth: state.chartWidth() - 70,
-        includeZero: state.tmp.dygraph_include_zero,
-        visibility: state.dimensions_visibility.selected2BooleanArray(state.data.dimension_names)
-    };
-
-    if (state.tmp.dygraph_chart_type === 'stacked') {
-        if (options.includeZero && state.dimensions_visibility.countSelected() < options.visibility.length) {
-            options.includeZero = 0;
-        }
-    }
-
-    if (!NETDATA.chartLibraries.dygraph.isSparkline(state)) {
-        options.ylabel = state.units_current; // (state.units_desired === 'auto')?"":state.units_current;
-    }
-
-    if (state.tmp.dygraph_force_zoom) {
-        if (NETDATA.options.debug.dygraph || state.debug) {
-            state.log('dygraphChartUpdate() forced zoom update');
-        }
-
-        options.dateWindow = (state.requested_padding !== null) ? [state.view_after, state.view_before] : null;
-        //options.isZoomedIgnoreProgrammaticZoom = true;
-        state.tmp.dygraph_force_zoom = false;
-    } else if (state.current.name !== 'auto') {
-        if (NETDATA.options.debug.dygraph || state.debug) {
-            state.log('dygraphChartUpdate() loose update');
-        }
-    } else {
-        if (NETDATA.options.debug.dygraph || state.debug) {
-            state.log('dygraphChartUpdate() strict update');
-        }
-
-        options.dateWindow = (state.requested_padding !== null) ? [state.view_after, state.view_before] : null;
-        //options.isZoomedIgnoreProgrammaticZoom = true;
-    }
-
-    options.valueRange = state.tmp.dygraph_options.valueRange;
-
-    let oldMax = null, oldMin = null;
-    if (state.tmp.__commonMin !== null) {
-        state.data.min = state.tmp.dygraph_instance.axes_[0].extremeRange[0];
-        oldMin = options.valueRange[0] = NETDATA.commonMin.get(state);
-    }
-    if (state.tmp.__commonMax !== null) {
-        state.data.max = state.tmp.dygraph_instance.axes_[0].extremeRange[1];
-        oldMax = options.valueRange[1] = NETDATA.commonMax.get(state);
-    }
-
-    if (state.tmp.dygraph_smooth_eligible) {
-        if ((NETDATA.options.current.smooth_plot && state.tmp.dygraph_options.plotter !== smoothPlotter)
-            || (NETDATA.options.current.smooth_plot === false && state.tmp.dygraph_options.plotter === smoothPlotter)) {
-            NETDATA.dygraphChartCreate(state, data);
-            return;
-        }
-    }
-
-    if (netdataSnapshotData !== null && NETDATA.globalPanAndZoom.isActive() && NETDATA.globalPanAndZoom.isMaster(state) === false) {
-        // pan and zoom on snapshots
-        options.dateWindow = [NETDATA.globalPanAndZoom.force_after_ms, NETDATA.globalPanAndZoom.force_before_ms];
-        //options.isZoomedIgnoreProgrammaticZoom = true;
-    }
-
-    if (NETDATA.chartLibraries.dygraph.isLogScale(state)) {
-        if (Array.isArray(options.valueRange) && options.valueRange[0] <= 0) {
-            options.valueRange[0] = null;
-        }
-    }
-
-    dygraph.updateOptions(options);
-
-    let redraw = false;
-    if (oldMin !== null && oldMin > state.tmp.dygraph_instance.axes_[0].extremeRange[0]) {
-        state.data.min = state.tmp.dygraph_instance.axes_[0].extremeRange[0];
-        options.valueRange[0] = NETDATA.commonMin.get(state);
-        redraw = true;
-    }
-    if (oldMax !== null && oldMax < state.tmp.dygraph_instance.axes_[0].extremeRange[1]) {
-        state.data.max = state.tmp.dygraph_instance.axes_[0].extremeRange[1];
-        options.valueRange[1] = NETDATA.commonMax.get(state);
-        redraw = true;
-    }
-
-    if (redraw) {
-        // state.log('forcing redraw to adapt to common- min/max');
-        dygraph.updateOptions(options);
-    }
-
-    state.tmp.dygraph_last_rendered = Date.now();
-    return true;
-};
-
-NETDATA.dygraphChartCreate = function (state, data) {
-    if (NETDATA.options.debug.dygraph || state.debug) {
-        state.log('dygraphChartCreate()');
-    }
-
-    state.tmp.dygraph_chart_type = NETDATA.dataAttribute(state.element, 'dygraph-type', state.chart.chart_type);
-    if (state.tmp.dygraph_chart_type === 'stacked' && data.dimensions === 1) {
-        state.tmp.dygraph_chart_type = 'area';
-    }
-    if (state.tmp.dygraph_chart_type === 'stacked' && NETDATA.chartLibraries.dygraph.isLogScale(state)) {
-        state.tmp.dygraph_chart_type = 'area';
-    }
-
-    let highlightCircleSize = NETDATA.chartLibraries.dygraph.isSparkline(state) ? 3 : 4;
-
-    let smooth = NETDATA.dygraph.smooth
-        ? (NETDATA.dataAttributeBoolean(state.element, 'dygraph-smooth', (state.tmp.dygraph_chart_type === 'line' && NETDATA.chartLibraries.dygraph.isSparkline(state) === false)))
-        : false;
-
-    state.tmp.dygraph_include_zero = NETDATA.dataAttribute(state.element, 'dygraph-includezero', (state.tmp.dygraph_chart_type === 'stacked'));
-    let drawAxis = NETDATA.dataAttributeBoolean(state.element, 'dygraph-drawaxis', true);
-
-    state.tmp.dygraph_options = {
-        colors: NETDATA.dataAttribute(state.element, 'dygraph-colors', state.chartColors()),
-
-        // leave a few pixels empty on the right of the chart
-        rightGap: NETDATA.dataAttribute(state.element, 'dygraph-rightgap', 5),
-        showRangeSelector: NETDATA.dataAttributeBoolean(state.element, 'dygraph-showrangeselector', false),
-        showRoller: NETDATA.dataAttributeBoolean(state.element, 'dygraph-showroller', false),
-        title: NETDATA.dataAttribute(state.element, 'dygraph-title', state.title),
-        titleHeight: NETDATA.dataAttribute(state.element, 'dygraph-titleheight', 19),
-        legend: NETDATA.dataAttribute(state.element, 'dygraph-legend', 'always'), // we need this to get selection events
-        labels: data.result.labels,
-        labelsDiv: NETDATA.dataAttribute(state.element, 'dygraph-labelsdiv', state.element_legend_childs.hidden),
-        //labelsDivStyles:        NETDATA.dataAttribute(state.element, 'dygraph-labelsdivstyles', { 'fontSize':'1px' }),
-        //labelsDivWidth:         NETDATA.dataAttribute(state.element, 'dygraph-labelsdivwidth', state.chartWidth() - 70),
-        labelsSeparateLines: NETDATA.dataAttributeBoolean(state.element, 'dygraph-labelsseparatelines', true),
-        labelsShowZeroValues: NETDATA.chartLibraries.dygraph.isLogScale(state) ? false : NETDATA.dataAttributeBoolean(state.element, 'dygraph-labelsshowzerovalues', true),
-        labelsKMB: false,
-        labelsKMG2: false,
-        showLabelsOnHighlight: NETDATA.dataAttributeBoolean(state.element, 'dygraph-showlabelsonhighlight', true),
-        hideOverlayOnMouseOut: NETDATA.dataAttributeBoolean(state.element, 'dygraph-hideoverlayonmouseout', true),
-        includeZero: state.tmp.dygraph_include_zero,
-        xRangePad: NETDATA.dataAttribute(state.element, 'dygraph-xrangepad', 0),
-        yRangePad: NETDATA.dataAttribute(state.element, 'dygraph-yrangepad', 1),
-        valueRange: NETDATA.dataAttribute(state.element, 'dygraph-valuerange', [null, null]),
-        ylabel: state.units_current, // (state.units_desired === 'auto')?"":state.units_current,
-        yLabelWidth: NETDATA.dataAttribute(state.element, 'dygraph-ylabelwidth', 12),
-
-        // the function to plot the chart
-        plotter: null,
-
-        // The width of the lines connecting data points.
-        // This can be used to increase the contrast or some graphs.
-        strokeWidth: NETDATA.dataAttribute(state.element, 'dygraph-strokewidth', ((state.tmp.dygraph_chart_type === 'stacked') ? 0.1 : ((smooth === true) ? 1.5 : 0.7))),
-        strokePattern: NETDATA.dataAttribute(state.element, 'dygraph-strokepattern', undefined),
-
-        // The size of the dot to draw on each point in pixels (see drawPoints).
-        // A dot is always drawn when a point is "isolated",
-        // i.e. there is a missing point on either side of it.
-        // This also controls the size of those dots.
-        drawPoints: NETDATA.dataAttributeBoolean(state.element, 'dygraph-drawpoints', false),
-
-        // Draw points at the edges of gaps in the data.
-        // This improves visibility of small data segments or other data irregularities.
-        drawGapEdgePoints: NETDATA.dataAttributeBoolean(state.element, 'dygraph-drawgapedgepoints', true),
-        connectSeparatedPoints: NETDATA.chartLibraries.dygraph.isLogScale(state) ? false : NETDATA.dataAttributeBoolean(state.element, 'dygraph-connectseparatedpoints', false),
-        pointSize: NETDATA.dataAttribute(state.element, 'dygraph-pointsize', 1),
-
-        // enabling this makes the chart with little square lines
-        stepPlot: NETDATA.dataAttributeBoolean(state.element, 'dygraph-stepplot', false),
-
-        // Draw a border around graph lines to make crossing lines more easily
-        // distinguishable. Useful for graphs with many lines.
-        strokeBorderColor: NETDATA.dataAttribute(state.element, 'dygraph-strokebordercolor', NETDATA.themes.current.background),
-        strokeBorderWidth: NETDATA.dataAttribute(state.element, 'dygraph-strokeborderwidth', (state.tmp.dygraph_chart_type === 'stacked') ? 0.0 : 0.0),
-        fillGraph: NETDATA.dataAttribute(state.element, 'dygraph-fillgraph', (state.tmp.dygraph_chart_type === 'area' || state.tmp.dygraph_chart_type === 'stacked')),
-        fillAlpha: NETDATA.dataAttribute(state.element, 'dygraph-fillalpha',
-            ((state.tmp.dygraph_chart_type === 'stacked')
-                ? NETDATA.options.current.color_fill_opacity_stacked
-                : NETDATA.options.current.color_fill_opacity_area)
-        ),
-        stackedGraph: NETDATA.dataAttribute(state.element, 'dygraph-stackedgraph', (state.tmp.dygraph_chart_type === 'stacked')),
-        stackedGraphNaNFill: NETDATA.dataAttribute(state.element, 'dygraph-stackedgraphnanfill', 'none'),
-        drawAxis: drawAxis,
-        axisLabelFontSize: NETDATA.dataAttribute(state.element, 'dygraph-axislabelfontsize', 10),
-        axisLineColor: NETDATA.dataAttribute(state.element, 'dygraph-axislinecolor', NETDATA.themes.current.axis),
-        axisLineWidth: NETDATA.dataAttribute(state.element, 'dygraph-axislinewidth', 1.0),
-        drawGrid: NETDATA.dataAttributeBoolean(state.element, 'dygraph-drawgrid', true),
-        gridLinePattern: NETDATA.dataAttribute(state.element, 'dygraph-gridlinepattern', null),
-        gridLineWidth: NETDATA.dataAttribute(state.element, 'dygraph-gridlinewidth', 1.0),
-        gridLineColor: NETDATA.dataAttribute(state.element, 'dygraph-gridlinecolor', NETDATA.themes.current.grid),
-        maxNumberWidth: NETDATA.dataAttribute(state.element, 'dygraph-maxnumberwidth', 8),
-        sigFigs: NETDATA.dataAttribute(state.element, 'dygraph-sigfigs', null),
-        digitsAfterDecimal: NETDATA.dataAttribute(state.element, 'dygraph-digitsafterdecimal', 2),
-        valueFormatter: NETDATA.dataAttribute(state.element, 'dygraph-valueformatter', undefined),
-        highlightCircleSize: NETDATA.dataAttribute(state.element, 'dygraph-highlightcirclesize', highlightCircleSize),
-        highlightSeriesOpts: NETDATA.dataAttribute(state.element, 'dygraph-highlightseriesopts', null), // TOO SLOW: { strokeWidth: 1.5 },
-        highlightSeriesBackgroundAlpha: NETDATA.dataAttribute(state.element, 'dygraph-highlightseriesbackgroundalpha', null), // TOO SLOW: (state.tmp.dygraph_chart_type === 'stacked')?0.7:0.5,
-        pointClickCallback: NETDATA.dataAttribute(state.element, 'dygraph-pointclickcallback', undefined),
-        visibility: state.dimensions_visibility.selected2BooleanArray(state.data.dimension_names),
-        logscale: NETDATA.chartLibraries.dygraph.isLogScale(state) ? 'y' : undefined,
-
-        // Expects a string in the format "<series name>: <style>" where each series is separated by a |
-        perSeriesStyle: NETDATA.dataAttribute(state.element, 'dygraph-per-series-style', ''),
-
-        axes: {
-            x: {
-                pixelsPerLabel: NETDATA.dataAttribute(state.element, 'dygraph-xpixelsperlabel', 50),
-                ticker: Dygraph.dateTicker,
-                axisLabelWidth: NETDATA.dataAttribute(state.element, 'dygraph-xaxislabelwidth', 60),
-                drawAxis: NETDATA.dataAttributeBoolean(state.element, 'dygraph-drawxaxis', drawAxis),
-                axisLabelFormatter: function (d, gran) {
-                    void(gran);
-                    return NETDATA.dateTime.xAxisTimeString(d);
-                }
-            },
-            y: {
-                logscale: NETDATA.chartLibraries.dygraph.isLogScale(state) ? true : undefined,
-                pixelsPerLabel: NETDATA.dataAttribute(state.element, 'dygraph-ypixelsperlabel', 15),
-                axisLabelWidth: NETDATA.dataAttribute(state.element, 'dygraph-yaxislabelwidth', 50),
-                drawAxis: NETDATA.dataAttributeBoolean(state.element, 'dygraph-drawyaxis', drawAxis),
-                axisLabelFormatter: function (y) {
-
-                    // unfortunately, we have to call this every single time
-                    state.legendFormatValueDecimalsFromMinMax(
-                        this.axes_[0].extremeRange[0],
-                        this.axes_[0].extremeRange[1]
-                    );
-
-                    let old_units = this.user_attrs_.ylabel;
-                    let v = state.legendFormatValue(y);
-                    let new_units = state.units_current;
-
-                    if (state.units_desired === 'auto' && typeof old_units !== 'undefined' && new_units !== old_units && !NETDATA.chartLibraries.dygraph.isSparkline(state)) {
-                        // console.log(this);
-                        // state.log('units discrepancy: old = ' + old_units + ', new = ' + new_units);
-                        let len = this.plugins_.length;
-                        while (len--) {
-                            // console.log(this.plugins_[len]);
-                            if (typeof this.plugins_[len].plugin.ylabel_div_ !== 'undefined'
-                                && this.plugins_[len].plugin.ylabel_div_ !== null
-                                && typeof this.plugins_[len].plugin.ylabel_div_.children !== 'undefined'
-                                && this.plugins_[len].plugin.ylabel_div_.children !== null
-                                && typeof this.plugins_[len].plugin.ylabel_div_.children[0].children !== 'undefined'
-                                && this.plugins_[len].plugin.ylabel_div_.children[0].children !== null
-                            ) {
-                                this.plugins_[len].plugin.ylabel_div_.children[0].children[0].innerHTML = new_units;
-                                this.user_attrs_.ylabel = new_units;
-                                break;
-                            }
-                        }
-
-                        if (len < 0) {
-                            state.log('units discrepancy, but cannot find dygraphs div to change: old = ' + old_units + ', new = ' + new_units);
-                        }
-                    }
-
-                    return v;
-                }
-            }
-        },
-        legendFormatter: function (data) {
-            if (state.tmp.dygraph_mouse_down) {
-                return;
-            }
-
-            let elements = state.element_legend_childs;
-
-            // if the hidden div is not there
-            // we are not managing the legend
-            if (elements.hidden === null) {
-                return;
-            }
-
-            if (typeof data.x !== 'undefined') {
-                state.legendSetDate(data.x);
-                let i = data.series.length;
-                while (i--) {
-                    let series = data.series[i];
-                    if (series.isVisible) {
-                        state.legendSetLabelValue(series.label, series.y);
-                    } else {
-                        state.legendSetLabelValue(series.label, null);
-                    }
-                }
-            }
-
-            return '';
-        },
-        drawCallback: function (dygraph, is_initial) {
-
-            // the user has panned the chart and this is called to re-draw the chart
-            // 1. refresh this chart by adding data to it
-            // 2. notify all the other charts about the update they need
-
-            // to prevent an infinite loop (feedback), we use
-            //     state.tmp.dygraph_user_action
-            // - when true, this is initiated by a user
-            // - when false, this is feedback
-
-            if (state.current.name !== 'auto' && state.tmp.dygraph_user_action) {
-                state.tmp.dygraph_user_action = false;
-
-                let x_range = dygraph.xAxisRange();
-                let after = Math.round(x_range[0]);
-                let before = Math.round(x_range[1]);
-
-                if (NETDATA.options.debug.dygraph) {
-                    state.log('dygraphDrawCallback(dygraph, ' + is_initial + '): mode ' + state.current.name + ' ' + (after / 1000).toString() + ' - ' + (before / 1000).toString());
-                    //console.log(state);
-                }
-
-                if (before <= state.netdata_last && after >= state.netdata_first) {
-                    // update only when we are within the data limits
-                    state.updateChartPanOrZoom(after, before);
-                }
-            }
-        },
-        zoomCallback: function (minDate, maxDate, yRanges) {
-
-            // the user has selected a range on the chart
-            // 1. refresh this chart by adding data to it
-            // 2. notify all the other charts about the update they need
-
-            void(yRanges);
-
-            if (NETDATA.options.debug.dygraph) {
-                state.log('dygraphZoomCallback(): ' + state.current.name);
-            }
-
-            NETDATA.globalSelectionSync.stop();
-            NETDATA.globalSelectionSync.delay();
-            state.setMode('zoom');
-
-            // refresh it to the greatest possible zoom level
-            state.tmp.dygraph_user_action = true;
-            state.tmp.dygraph_force_zoom = true;
-            state.updateChartPanOrZoom(minDate, maxDate);
-        },
-        highlightCallback: function (event, x, points, row, seriesName) {
-            void(seriesName);
-
-            state.pauseChart();
-
-            // there is a bug in dygraph when the chart is zoomed enough
-            // the time it thinks is selected is wrong
-            // here we calculate the time t based on the row number selected
-            // which is ok
-            // let t = state.data_after + row * state.data_update_every;
-            // console.log('row = ' + row + ', x = ' + x + ', t = ' + t + ' ' + ((t === x)?'SAME':(Math.abs(x-t)<=state.data_update_every)?'SIMILAR':'DIFFERENT') + ', rows in db: ' + state.data_points + ' visible(x) = ' + state.timeIsVisible(x) + ' visible(t) = ' + state.timeIsVisible(t) + ' r(x) = ' + state.calculateRowForTime(x) + ' r(t) = ' + state.calculateRowForTime(t) + ' range: ' + state.data_after + ' - ' + state.data_before + ' real: ' + state.data.after + ' - ' + state.data.before + ' every: ' + state.data_update_every);
-
-            if (state.tmp.dygraph_mouse_down !== true) {
-                NETDATA.globalSelectionSync.sync(state, x);
-            }
-
-            // fix legend zIndex using the internal structures of dygraph legend module
-            // this works, but it is a hack!
-            // state.tmp.dygraph_instance.plugins_[0].plugin.legend_div_.style.zIndex = 10000;
-        },
-        unhighlightCallback: function (event) {
-            void(event);
-
-            if (state.tmp.dygraph_mouse_down) {
-                return;
-            }
-
-            if (NETDATA.options.debug.dygraph || state.debug) {
-                state.log('dygraphUnhighlightCallback()');
-            }
-
-            state.unpauseChart();
-            NETDATA.globalSelectionSync.stop();
-        },
-        underlayCallback: function (canvas, area, g) {
-            // the chart is about to be drawn
-
-            // update history_tip_element
-            if (state.tmp.dygraph_history_tip_element) {
-                const xHookRightSide = g.toDomXCoord(state.netdata_first);
-                if (xHookRightSide > area.x) {
-                    state.tmp.dygraph_history_tip_element_displayed = true;
-                    // group the styles for possible better performance
-                    state.tmp.dygraph_history_tip_element.setAttribute(
-                      'style',
-                      `display: block; left: ${area.x}px; right: calc(100% - ${xHookRightSide}px);`
-                    )
-                } else {
-                    if (state.tmp.dygraph_history_tip_element_displayed) {
-                        // additional check just for performance
-                        // don't update the DOM when it's not needed
-                        state.tmp.dygraph_history_tip_element.style.display = 'none';
-                        state.tmp.dygraph_history_tip_element_displayed = false;
-                    }
-                }
-            }
-
-            // this function renders global highlighted time-frame
-
-            if (NETDATA.globalChartUnderlay.isActive()) {
-                let after = NETDATA.globalChartUnderlay.after;
-                let before = NETDATA.globalChartUnderlay.before;
-
-                if (after < state.view_after) {
-                    after = state.view_after;
-                }
-
-                if (before > state.view_before) {
-                    before = state.view_before;
-                }
-
-                if (after < before) {
-                    let bottom_left = g.toDomCoords(after, -20);
-                    let top_right = g.toDomCoords(before, +20);
-
-                    let left = bottom_left[0];
-                    let right = top_right[0];
-
-                    canvas.fillStyle = NETDATA.themes.current.highlight;
-                    canvas.fillRect(left, area.y, right - left, area.h);
-                }
-            }
-        },
-        interactionModel: {
-            mousedown: function (event, dygraph, context) {
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.mousedown()');
-                }
-
-                state.tmp.dygraph_user_action = true;
-
-                if (NETDATA.options.debug.dygraph) {
-                    state.log('dygraphMouseDown()');
-                }
-
-                // Right-click should not initiate anything.
-                if (event.button && event.button === 2) {
-                    return;
-                }
-
-                NETDATA.globalSelectionSync.stop();
-                NETDATA.globalSelectionSync.delay();
-
-                state.tmp.dygraph_mouse_down = true;
-                context.initializeMouseDown(event, dygraph, context);
-
-                //console.log(event);
-                if (event.button && event.button === 1) {
-                    if (event.shiftKey) {
-                        //console.log('middle mouse button dragging (PAN)');
-
-                        state.setMode('pan');
-                        // NETDATA.globalSelectionSync.delay();
-                        state.tmp.dygraph_highlight_after = null;
-                        Dygraph.startPan(event, dygraph, context);
-                    } else if (event.altKey || event.ctrlKey || event.metaKey) {
-                        //console.log('middle mouse button highlight');
-
-                        if (!(event.offsetX && event.offsetY)) {
-                            event.offsetX = event.layerX - event.target.offsetLeft;
-                            event.offsetY = event.layerY - event.target.offsetTop;
-                        }
-                        state.tmp.dygraph_highlight_after = dygraph.toDataXCoord(event.offsetX);
-                        Dygraph.startZoom(event, dygraph, context);
-                    } else {
-                        //console.log('middle mouse button selection for zoom (ZOOM)');
-
-                        state.setMode('zoom');
-                        // NETDATA.globalSelectionSync.delay();
-                        state.tmp.dygraph_highlight_after = null;
-                        Dygraph.startZoom(event, dygraph, context);
-                    }
-                } else {
-                    if (event.shiftKey) {
-                        //console.log('left mouse button selection for zoom (ZOOM)');
-
-                        state.setMode('zoom');
-                        // NETDATA.globalSelectionSync.delay();
-                        state.tmp.dygraph_highlight_after = null;
-                        Dygraph.startZoom(event, dygraph, context);
-                    } else if (event.altKey || event.ctrlKey || event.metaKey) {
-                        //console.log('left mouse button highlight');
-
-                        if (!(event.offsetX && event.offsetY)) {
-                            event.offsetX = event.layerX - event.target.offsetLeft;
-                            event.offsetY = event.layerY - event.target.offsetTop;
-                        }
-                        state.tmp.dygraph_highlight_after = dygraph.toDataXCoord(event.offsetX);
-                        Dygraph.startZoom(event, dygraph, context);
-                    } else {
-                        //console.log('left mouse button dragging (PAN)');
-
-                        state.setMode('pan');
-                        // NETDATA.globalSelectionSync.delay();
-                        state.tmp.dygraph_highlight_after = null;
-                        Dygraph.startPan(event, dygraph, context);
-                    }
-                }
-            },
-            mousemove: function (event, dygraph, context) {
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.mousemove()');
-                }
-
-                if (state.tmp.dygraph_highlight_after !== null) {
-                    //console.log('highlight selection...');
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    state.tmp.dygraph_user_action = true;
-                    Dygraph.moveZoom(event, dygraph, context);
-                    event.preventDefault();
-                } else if (context.isPanning) {
-                    //console.log('panning...');
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    state.tmp.dygraph_user_action = true;
-                    //NETDATA.globalSelectionSync.stop();
-                    //NETDATA.globalSelectionSync.delay();
-                    state.setMode('pan');
-                    context.is2DPan = false;
-                    Dygraph.movePan(event, dygraph, context);
-                } else if (context.isZooming) {
-                    //console.log('zooming...');
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    state.tmp.dygraph_user_action = true;
-                    //NETDATA.globalSelectionSync.stop();
-                    //NETDATA.globalSelectionSync.delay();
-                    state.setMode('zoom');
-                    Dygraph.moveZoom(event, dygraph, context);
-                }
-            },
-            mouseup: function (event, dygraph, context) {
-                state.tmp.dygraph_mouse_down = false;
-
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.mouseup()');
-                }
-
-                if (state.tmp.dygraph_highlight_after !== null) {
-                    //console.log('done highlight selection');
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    if (!(event.offsetX && event.offsetY)) {
-                        event.offsetX = event.layerX - event.target.offsetLeft;
-                        event.offsetY = event.layerY - event.target.offsetTop;
-                    }
-
-                    NETDATA.globalChartUnderlay.set(state
-                        , state.tmp.dygraph_highlight_after
-                        , dygraph.toDataXCoord(event.offsetX)
-                        , state.view_after
-                        , state.view_before
-                    );
-
-                    state.tmp.dygraph_highlight_after = null;
-
-                    context.isZooming = false;
-                    dygraph.clearZoomRect_();
-                    dygraph.drawGraph_(false);
-
-                    // refresh all the charts immediately
-                    NETDATA.options.auto_refresher_stop_until = 0;
-                } else if (context.isPanning) {
-                    //console.log('done panning');
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    state.tmp.dygraph_user_action = true;
-                    Dygraph.endPan(event, dygraph, context);
-
-                    // refresh all the charts immediately
-                    NETDATA.options.auto_refresher_stop_until = 0;
-                } else if (context.isZooming) {
-                    //console.log('done zomming');
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    state.tmp.dygraph_user_action = true;
-                    Dygraph.endZoom(event, dygraph, context);
-
-                    // refresh all the charts immediately
-                    NETDATA.options.auto_refresher_stop_until = 0;
-                }
-            },
-            click: function (event, dygraph, context) {
-                void(dygraph);
-                void(context);
-
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.click()');
-                }
-
-                event.preventDefault();
-            },
-            dblclick: function (event, dygraph, context) {
-                void(event);
-                void(dygraph);
-                void(context);
-
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.dblclick()');
-                }
-                NETDATA.resetAllCharts(state);
-            },
-            wheel: function (event, dygraph, context) {
-                void(context);
-
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.wheel()');
-                }
-
-                // Take the offset of a mouse event on the dygraph canvas and
-                // convert it to a pair of percentages from the bottom left.
-                // (Not top left, bottom is where the lower value is.)
-                function offsetToPercentage(g, offsetX, offsetY) {
-                    // This is calculating the pixel offset of the leftmost date.
-                    let xOffset = g.toDomCoords(g.xAxisRange()[0], null)[0];
-                    let yar0 = g.yAxisRange(0);
-
-                    // This is calculating the pixel of the highest value. (Top pixel)
-                    let yOffset = g.toDomCoords(null, yar0[1])[1];
-
-                    // x y w and h are relative to the corner of the drawing area,
-                    // so that the upper corner of the drawing area is (0, 0).
-                    let x = offsetX - xOffset;
-                    let y = offsetY - yOffset;
-
-                    // This is computing the rightmost pixel, effectively defining the
-                    // width.
-                    let w = g.toDomCoords(g.xAxisRange()[1], null)[0] - xOffset;
-
-                    // This is computing the lowest pixel, effectively defining the height.
-                    let h = g.toDomCoords(null, yar0[0])[1] - yOffset;
-
-                    // Percentage from the left.
-                    let xPct = w === 0 ? 0 : (x / w);
-                    // Percentage from the top.
-                    let yPct = h === 0 ? 0 : (y / h);
-
-                    // The (1-) part below changes it from "% distance down from the top"
-                    // to "% distance up from the bottom".
-                    return [xPct, (1 - yPct)];
-                }
-
-                // Adjusts [x, y] toward each other by zoomInPercentage%
-                // Split it so the left/bottom axis gets xBias/yBias of that change and
-                // tight/top gets (1-xBias)/(1-yBias) of that change.
-                //
-                // If a bias is missing it splits it down the middle.
-                function zoomRange(g, zoomInPercentage, xBias, yBias) {
-                    xBias = xBias || 0.5;
-                    yBias = yBias || 0.5;
-
-                    function adjustAxis(axis, zoomInPercentage, bias) {
-                        let delta = axis[1] - axis[0];
-                        let increment = delta * zoomInPercentage;
-                        let foo = [increment * bias, increment * (1 - bias)];
-
-                        return [axis[0] + foo[0], axis[1] - foo[1]];
-                    }
-
-                    let yAxes = g.yAxisRanges();
-                    let newYAxes = [];
-                    for (let i = 0; i < yAxes.length; i++) {
-                        newYAxes[i] = adjustAxis(yAxes[i], zoomInPercentage, yBias);
-                    }
-
-                    return adjustAxis(g.xAxisRange(), zoomInPercentage, xBias);
-                }
-
-                if (event.altKey || event.shiftKey) {
-                    state.tmp.dygraph_user_action = true;
-
-                    NETDATA.globalSelectionSync.stop();
-                    NETDATA.globalSelectionSync.delay();
-
-                    // http://dygraphs.com/gallery/interaction-api.js
-                    let normal_def;
-                    if (typeof event.wheelDelta === 'number' && !isNaN(event.wheelDelta))
-                    // chrome
-                    {
-                        normal_def = event.wheelDelta / 40;
-                    } else
-                    // firefox
-                    {
-                        normal_def = event.deltaY * -1.2;
-                    }
-
-                    let normal = (event.detail) ? event.detail * -1 : normal_def;
-                    let percentage = normal / 50;
-
-                    if (!(event.offsetX && event.offsetY)) {
-                        event.offsetX = event.layerX - event.target.offsetLeft;
-                        event.offsetY = event.layerY - event.target.offsetTop;
-                    }
-
-                    let percentages = offsetToPercentage(dygraph, event.offsetX, event.offsetY);
-                    let xPct = percentages[0];
-                    let yPct = percentages[1];
-
-                    let new_x_range = zoomRange(dygraph, percentage, xPct, yPct);
-                    let after = new_x_range[0];
-                    let before = new_x_range[1];
-
-                    let first = state.netdata_first + state.data_update_every;
-                    let last = state.netdata_last + state.data_update_every;
-
-                    if (before > last) {
-                        after -= (before - last);
-                        before = last;
-                    }
-                    if (after < first) {
-                        after = first;
-                    }
-
-                    state.setMode('zoom');
-                    state.updateChartPanOrZoom(after, before, function () {
-                        dygraph.updateOptions({dateWindow: [after, before]});
-                    });
-
-                    event.preventDefault();
-                }
-            },
-            touchstart: function (event, dygraph, context) {
-                state.tmp.dygraph_mouse_down = true;
-
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.touchstart()');
-                }
-
-                state.tmp.dygraph_user_action = true;
-                state.setMode('zoom');
-                state.pauseChart();
-
-                NETDATA.globalSelectionSync.stop();
-                NETDATA.globalSelectionSync.delay();
-
-                Dygraph.defaultInteractionModel.touchstart(event, dygraph, context);
-
-                // we overwrite the touch directions at the end, to overwrite
-                // the internal default of dygraph
-                context.touchDirections = {x: true, y: false};
-
-                state.dygraph_last_touch_start = Date.now();
-                state.dygraph_last_touch_move = 0;
-
-                if (typeof event.touches[0].pageX === 'number') {
-                    state.dygraph_last_touch_page_x = event.touches[0].pageX;
-                } else {
-                    state.dygraph_last_touch_page_x = 0;
-                }
-            },
-            touchmove: function (event, dygraph, context) {
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.touchmove()');
-                }
-
-                NETDATA.globalSelectionSync.stop();
-                NETDATA.globalSelectionSync.delay();
-
-                state.tmp.dygraph_user_action = true;
-                Dygraph.defaultInteractionModel.touchmove(event, dygraph, context);
-
-                state.dygraph_last_touch_move = Date.now();
-            },
-            touchend: function (event, dygraph, context) {
-                state.tmp.dygraph_mouse_down = false;
-
-                if (NETDATA.options.debug.dygraph || state.debug) {
-                    state.log('interactionModel.touchend()');
-                }
-
-                NETDATA.globalSelectionSync.stop();
-                NETDATA.globalSelectionSync.delay();
-
-                state.tmp.dygraph_user_action = true;
-                Dygraph.defaultInteractionModel.touchend(event, dygraph, context);
-
-                // if it didn't move, it is a selection
-                if (state.dygraph_last_touch_move === 0 && state.dygraph_last_touch_page_x !== 0) {
-                    NETDATA.globalSelectionSync.dontSyncBefore = 0;
-                    NETDATA.globalSelectionSync.setMaster(state);
-
-                    // internal api of dygraph
-                    let pct = (state.dygraph_last_touch_page_x - (dygraph.plotter_.area.x + state.element.getBoundingClientRect().left)) / dygraph.plotter_.area.w;
-                    console.log('pct: ' + pct.toString());
-
-                    let t = Math.round(state.view_after + (state.view_before - state.view_after) * pct);
-                    if (NETDATA.dygraphSetSelection(state, t)) {
-                        NETDATA.globalSelectionSync.sync(state, t);
-                    }
-                }
-
-                // if it was double tap within double click time, reset the charts
-                let now = Date.now();
-                if (typeof state.dygraph_last_touch_end !== 'undefined') {
-                    if (state.dygraph_last_touch_move === 0) {
-                        let dt = now - state.dygraph_last_touch_end;
-                        if (dt <= NETDATA.options.current.double_click_speed) {
-                            NETDATA.resetAllCharts(state);
-                        }
-                    }
-                }
-
-                // remember the timestamp of the last touch end
-                state.dygraph_last_touch_end = now;
-
-                // refresh all the charts immediately
-                NETDATA.options.auto_refresher_stop_until = 0;
-            }
-        }
-    };
-
-    if (NETDATA.chartLibraries.dygraph.isLogScale(state)) {
-        if (Array.isArray(state.tmp.dygraph_options.valueRange) && state.tmp.dygraph_options.valueRange[0] <= 0) {
-            state.tmp.dygraph_options.valueRange[0] = null;
-        }
-    }
-
-    if (NETDATA.chartLibraries.dygraph.isSparkline(state)) {
-        state.tmp.dygraph_options.drawGrid = false;
-        state.tmp.dygraph_options.drawAxis = false;
-        state.tmp.dygraph_options.title = undefined;
-        state.tmp.dygraph_options.ylabel = undefined;
-        state.tmp.dygraph_options.yLabelWidth = 0;
-        //state.tmp.dygraph_options.labelsDivWidth = 120;
-        //state.tmp.dygraph_options.labelsDivStyles.width = '120px';
-        state.tmp.dygraph_options.labelsSeparateLines = true;
-        state.tmp.dygraph_options.rightGap = 0;
-        state.tmp.dygraph_options.yRangePad = 1;
-        state.tmp.dygraph_options.axes.x.drawAxis = false;
-        state.tmp.dygraph_options.axes.y.drawAxis = false;
-    }
-
-    if (smooth) {
-        state.tmp.dygraph_smooth_eligible = true;
-
-        if (NETDATA.options.current.smooth_plot) {
-            state.tmp.dygraph_options.plotter = smoothPlotter;
-        }
-    }
-    else {
-        state.tmp.dygraph_smooth_eligible = false;
-    }
-
-    if (netdataSnapshotData !== null && NETDATA.globalPanAndZoom.isActive() && NETDATA.globalPanAndZoom.isMaster(state) === false) {
-        // pan and zoom on snapshots
-        state.tmp.dygraph_options.dateWindow = [NETDATA.globalPanAndZoom.force_after_ms, NETDATA.globalPanAndZoom.force_before_ms];
-        //state.tmp.dygraph_options.isZoomedIgnoreProgrammaticZoom = true;
-    }
-
-    let seriesStyles = NETDATA.dygraphGetSeriesStyle(state.tmp.dygraph_options);
-    state.tmp.dygraph_options.series = seriesStyles;
-
-    state.tmp.dygraph_instance = new Dygraph(
-        state.element_chart,
-        data.result.data,
-        state.tmp.dygraph_options
-    );
-
-    state.tmp.dygraph_history_tip_element = document.createElement('div');
-    state.tmp.dygraph_history_tip_element.innerHTML = `
-        <span class="dygraph__history-tip-content">
-          Want to extend your history of real-time metrics?
-          <br />
-           <a href="https://docs.netdata.cloud/docs/configuration-guide/#increase-the-metrics-retention-period" target=_blank>
-             Configure Netdata's <b>history</b></a>
-           or use the <a href="https://docs.netdata.cloud/database/engine/" target=_blank>DB engine</a>.
-        </span>
-    `;
-    state.tmp.dygraph_history_tip_element.className = 'dygraph__history-tip';
-    state.element_chart.appendChild(state.tmp.dygraph_history_tip_element);
-
-
-    state.tmp.dygraph_force_zoom = false;
-    state.tmp.dygraph_user_action = false;
-    state.tmp.dygraph_last_rendered = Date.now();
-    state.tmp.dygraph_highlight_after = null;
-
-    if (state.tmp.dygraph_options.valueRange[0] === null && state.tmp.dygraph_options.valueRange[1] === null) {
-        if (typeof state.tmp.dygraph_instance.axes_[0].extremeRange !== 'undefined') {
-            state.tmp.__commonMin = NETDATA.dataAttribute(state.element, 'common-min', null);
-            state.tmp.__commonMax = NETDATA.dataAttribute(state.element, 'common-max', null);
-        } else {
-            state.log('incompatible version of Dygraph detected');
-            state.tmp.__commonMin = null;
-            state.tmp.__commonMax = null;
-        }
-    } else {
-        // if the user gave a valueRange, respect it
-        state.tmp.__commonMin = null;
-        state.tmp.__commonMax = null;
-    }
-
-    return true;
-};
-
-NETDATA.dygraphGetSeriesStyle = function(dygraphOptions) {
-    const seriesStyleStr = dygraphOptions.perSeriesStyle;
-    let formattedStyles = {};
-
-    if (seriesStyleStr === '') {
-      return formattedStyles;
-    }
-
-    // Parse the config string into a JSON object
-    let styles = seriesStyleStr.replace(' ', '').split('|');
-
-    styles.forEach(style => {
-        const keys = style.split(':');
-        formattedStyles[keys[0]] = keys[1];
-    });
-
-    for (let key in formattedStyles) {
-        if (formattedStyles.hasOwnProperty(key)) {
-            let settings;
-
-            switch (formattedStyles[key]) {
-                case 'line':
-                    settings = { fillGraph: false };
-                    break;
-                case 'area':
-                    settings = { fillGraph: true };
-                    break;
-                case 'dot':
-                    settings = {
-                        fillGraph: false,
-                        drawPoints: true,
-                        pointSize: dygraphOptions.pointSize
-                    };
-                    break;
-                default:
-                    settings = undefined;
-            }
-
-            formattedStyles[key] = settings;
-        }
-    }
-
-    return formattedStyles;
-};
-- 
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