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authorFederico Ceratto <federico.ceratto@gmail.com>2016-03-30 21:40:42 +0000
committerFederico Ceratto <federico.ceratto@gmail.com>2016-03-30 21:40:42 +0000
commit9ce153ce7167c11adba8ac225edc7a707e97c6eb (patch)
tree9f6e849cce2dcc7e5b4e9e6252c843dc2d0787a2 /web/old/index.js
downloadnetdata-9ce153ce7167c11adba8ac225edc7a707e97c6eb.tar.xz
netdata-9ce153ce7167c11adba8ac225edc7a707e97c6eb.zip
Imported Upstream version 1.0.0upstream/1.0.0
Diffstat (limited to 'web/old/index.js')
-rwxr-xr-xweb/old/index.js1174
1 files changed, 1174 insertions, 0 deletions
diff --git a/web/old/index.js b/web/old/index.js
new file mode 100755
index 000000000..3a28daf73
--- /dev/null
+++ b/web/old/index.js
@@ -0,0 +1,1174 @@
+var page_is_visible = 1;
+
+var TARGET_THUMB_GRAPH_WIDTH = 500; // thumb charts width will range from 0.5 to 1.5 of that
+var MINIMUM_THUMB_GRAPH_WIDTH = 400; // thumb chart will generally try to be wider than that
+var TARGET_THUMB_GRAPH_HEIGHT = 160; // the height of the thumb charts
+var TARGET_GROUP_GRAPH_HEIGHT = 160;
+
+var THUMBS_MAX_TIME_TO_SHOW = 240; // how much time the thumb charts will present?
+var THUMBS_POINTS_DIVISOR = 3;
+var THUMBS_STACKED_POINTS_DIVISOR = 4;
+
+var GROUPS_MAX_TIME_TO_SHOW = 600; // how much time the group charts will present?
+var GROUPS_POINTS_DIVISOR = 2;
+var GROUPS_STACKED_POINTS_DIVISOR = 3;
+
+var MAINCHART_MIN_TIME_TO_SHOW = 1200; // how much time the main chart will present by default?
+var MAINCHART_POINTS_DIVISOR = 2; // how much detailed will the main chart be by default? 1 = finest, higher is faster
+var MAINCHART_STACKED_POINTS_DIVISOR = 3; // how much detailed will the main chart be by default? 1 = finest, higher is faster
+
+var MAINCHART_CONTROL_HEIGHT = 75; // how tall the control chart will be
+var MAINCHART_CONTROL_DIVISOR = 5; // how much detailed will the control chart be? 1 = finest, higher is faster
+var MAINCHART_INITIAL_SELECTOR= 20; // 1/20th of the width, this overrides MAINCHART_MIN_TIME_TO_SHOW
+
+var CHARTS_REFRESH_LOOP = 50; // delay between chart refreshes
+var CHARTS_REFRESH_IDLE = 500; // delay between chart refreshes when no chart was ready for refresh the last time
+var CHARTS_CHECK_NO_FOCUS = 500; // delay to check for visibility when the page has no focus
+var CHARTS_SCROLL_IDLE = 100; // delay to wait after a page scroll
+
+var ENABLE_CURVE = 1;
+
+var resize_request = false;
+
+function setPresentationNormal(ui) {
+ THUMBS_POINTS_DIVISOR = 3;
+ THUMBS_STACKED_POINTS_DIVISOR = Math.round(THUMBS_POINTS_DIVISOR * 1.5);
+ GROUPS_POINTS_DIVISOR = 2;
+ GROUPS_STACKED_POINTS_DIVISOR = Math.round(GROUPS_POINTS_DIVISOR * 1.5);
+ MAINCHART_POINTS_DIVISOR = 2;
+ MAINCHART_STACKED_POINTS_DIVISOR = Math.round(MAINCHART_POINTS_DIVISOR * 1.5);
+ ENABLE_CURVE = 1;
+ CHARTS_REFRESH_LOOP = 50;
+ CHARTS_SCROLL_IDLE = 50;
+ resize_request = true;
+ if(ui) $('#presentation_normal').trigger('click');
+ playGraphs();
+}
+function setPresentationSpeedy(ui) {
+ THUMBS_POINTS_DIVISOR = 10;
+ THUMBS_STACKED_POINTS_DIVISOR = Math.round(THUMBS_POINTS_DIVISOR * 1.5);
+ GROUPS_POINTS_DIVISOR = 8;
+ GROUPS_STACKED_POINTS_DIVISOR = Math.round(GROUPS_POINTS_DIVISOR * 1.5);
+ MAINCHART_POINTS_DIVISOR = 5;
+ MAINCHART_STACKED_POINTS_DIVISOR = Math.round(MAINCHART_POINTS_DIVISOR * 1.5);
+ ENABLE_CURVE = 0;
+ CHARTS_REFRESH_LOOP = 50;
+ CHARTS_SCROLL_IDLE = 100;
+ resize_request = true;
+ if(ui) $('#presentation_speedy').trigger('click');
+ playGraphs();
+}
+function setPresentationDetailed(ui) {
+ THUMBS_POINTS_DIVISOR = 1;
+ THUMBS_STACKED_POINTS_DIVISOR = 1;
+ GROUPS_POINTS_DIVISOR = 1;
+ GROUPS_STACKED_POINTS_DIVISOR = 1;
+ MAINCHART_POINTS_DIVISOR = 1;
+ MAINCHART_STACKED_POINTS_DIVISOR = 1;
+ ENABLE_CURVE = 1;
+ CHARTS_REFRESH_LOOP = 50;
+ CHARTS_SCROLL_IDLE = 50;
+ resize_request = true;
+ if(ui) $('#presentation_detailed').trigger('click');
+ playGraphs();
+}
+
+function isIE() {
+ userAgent = navigator.userAgent;
+ return userAgent.indexOf("MSIE ") > -1 || userAgent.indexOf("Trident/") > -1;
+}
+
+if(isIE()){
+ // do stuff with ie-users
+ CHARTS_REFRESH_LOOP=250;
+ CHARTS_SCROLL_IDLE=500;
+}
+
+var MODE_THUMBS = 1;
+var MODE_MAIN = 2;
+var MODE_GROUP_THUMBS = 3;
+var mode; // one of the MODE_* values
+
+var allCharts = new Array();
+var mainchart;
+
+// html for the main menu
+var mainmenu = "";
+var categoriesmainmenu = "";
+var familiesmainmenu = "";
+var chartsmainmenu = "";
+
+
+// ------------------------------------------------------------------------
+// common HTML generation
+
+function thumbChartActions(i, c, nogroup) {
+ var name = c.name;
+ if(!nogroup) name = c.family;
+
+ var refinfo = "the chart is drawing ";
+ if(c.group == 1) refinfo += "every single point collected (" + c.update_every + "s each).";
+ else refinfo += ((c.group_method == "average")?"the average":"the max") + " value for every " + (c.group * c.update_every) + " seconds of data";
+
+ var html = "<div class=\"btn-group btn-group\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"" + refinfo + "\">"
+ + "<button type=\"button\" class=\"btn btn-default\" onclick=\"javascript: return;\"><span class=\"glyphicon glyphicon-info-sign\"></span></button>"
+ + "</div>"
+ + "<div class=\"btn-group btn-group\"><button type=\"button\" class=\"btn btn-default disabled\"><small>&nbsp;&nbsp; " + name + "</small></button>";
+
+ if(!nogroup) {
+ var ingroup = 0;
+ var ingroup_detail = 0;
+
+ $.each(allCharts, function(i, d) {
+ if(d.family == c.family) {
+ ingroup++;
+ if(d.isdetail) ingroup_detail++;
+ }
+ });
+
+ var hidden = "";
+ if(ingroup_detail) hidden = ", including " + ingroup_detail + " charts not shown now";
+
+ html += "<button type=\"button\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Show all " + ingroup + " charts in group '" + c.family + "'" + hidden + "\" class=\"btn btn-default\" onclick=\"initGroupGraphs('" + c.family +"');\"><span class=\"glyphicon glyphicon-th-large\"></span></button>";
+ }
+
+ html += "<button type=\"button\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"show chart '" + c.name + "' in fullscreen\" class=\"btn btn-default\" onclick=\"initMainChartIndex(" + i +");\"><span class=\"glyphicon glyphicon-resize-full\"></span></button>"
+ + "<button type=\"button\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"set options for chart '" + c.name + "'\" class=\"btn btn-default disabled\" onclick=\"alert('Not implemented yet!');\"><span class=\"glyphicon glyphicon-cog\"></span></button>"
+ + "<button type=\"button\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"ignore chart '" + c.name + "'\" class=\"btn btn-default\" onclick=\"disableChart(" + i + ");\"><span class=\"glyphicon glyphicon-trash\"></span></button>"
+ + "</div>";
+
+ return html;
+}
+
+function groupChartActions(i, c) {
+ var name = c.name;
+
+ var refinfo = "the chart is drawing ";
+ if(c.group == 1) refinfo += "every single point collected (" + c.update_every + "s each).";
+ else refinfo += ((c.group_method == "average")?"the average":"the max") + " value for every " + (c.group * c.update_every) + " seconds of data";
+
+ var html = "<div class=\"btn-group btn-group\" data-toggle=\"tooltip\" data-placement=\"left\" title=\"" + refinfo + "\">"
+ + "<button type=\"button\" class=\"btn btn-default\" onclick=\"javascript: return;\"><span class=\"glyphicon glyphicon-info-sign\"></span></button>"
+ + "</div>";
+
+ html += "<button type=\"button\" data-toggle=\"tooltip\" data-placement=\"left\" title=\"show chart '" + c.name + "' in fullscreen\" class=\"btn btn-default\" onclick=\"initMainChartIndex(" + i +");\"><span class=\"glyphicon glyphicon-resize-full\"></span></button>"
+ + "<button type=\"button\" data-toggle=\"tooltip\" data-placement=\"left\" title=\"ignore chart '" + c.name + "'\" class=\"btn btn-default\" onclick=\"disableChart(" + i + ");\"><span class=\"glyphicon glyphicon-trash\"></span></button>"
+ + "</div>";
+
+ return html;
+}
+
+function mylog(txt) {
+ console.log(txt);
+ $('#logline').html(txt);
+}
+
+function chartssort(a, b) {
+ if(a.priority == b.priority) {
+ if(a.name < b.name) return -1;
+ }
+ else if(a.priority < b.priority) return -1;
+
+ return 1;
+}
+
+
+// ------------------------------------------------------------------------
+// MAINGRAPH = fullscreen view of 1 graph
+
+// copy the chart c to mainchart
+// switch to main graphs screen
+function initMainChart(c) {
+ if(mainchart) cleanThisChart(mainchart);
+
+ mainchart = $.extend(true, {}, c);
+ mainchart.enabled = true;
+ mainchart.refreshCount = 0;
+ mainchart.last_updated = 0;
+ mainchart.chartOptions.explorer = null;
+ mainchart.chart = null;
+
+ mainchart.before = 0;
+ mainchart.after = 0;
+
+ mainchart.chartOptions.width = screenWidth();
+ mainchart.chartOptions.height = $(window).height() - 150 - MAINCHART_CONTROL_HEIGHT;
+ if(mainchart.chartOptions.height < 300) mainchart.chartOptions.height = 300;
+
+ mainchart.div = 'maingraph';
+ mainchart.max_time_to_show = (mainchart.last_entry_t - mainchart.first_entry_t) / ( MAINCHART_INITIAL_SELECTOR * mainchart.update_every );
+ if(mainchart.max_time_to_show < MAINCHART_MIN_TIME_TO_SHOW) mainchart.max_time_to_show = MAINCHART_MIN_TIME_TO_SHOW;
+ calculateChartPointsToShow(mainchart, mainchart.chartOptions.isStacked?MAINCHART_STACKED_POINTS_DIVISOR:MAINCHART_POINTS_DIVISOR, mainchart.max_time_to_show, 0, ENABLE_CURVE);
+
+ // copy it to the hidden chart
+ mainchart.hiddenchart = $.extend(true, {}, mainchart);
+ mainchart.hiddenchart.chartOptions.height = MAINCHART_CONTROL_HEIGHT;
+ mainchart.hiddenchart.div = 'maingraph_control';
+ mainchart.hiddenchart.non_zero = 0;
+
+ // initialize the div
+ showChartIsLoading(mainchart.div, mainchart.name, mainchart.chartOptions.width, mainchart.chartOptions.height);
+ document.getElementById(mainchart.hiddenchart.div).innerHTML = "<table><tr><td align=\"center\" width=\"" + mainchart.hiddenchart.chartOptions.width + "\" height=\"" + mainchart.hiddenchart.chartOptions.height + "\" style=\"vertical-align:middle\"><h4><span class=\"label label-default\">Please wait...</span></h4></td></tr></table>";
+ //showChartIsLoading(mainchart.hiddenchart.div, mainchart.hiddenchart.name, mainchart.hiddenchart.chartOptions.width, mainchart.hiddenchart.chartOptions.height);
+
+ // set the radio buttons
+ setMainChartGroupMethod(mainchart.group_method, 'no-refresh');
+ setMainChartMax('normal');
+
+ $('#group' + mainchart.group).trigger('click');
+ setMainChartGroup(mainchart.group, 'no-refresh');
+
+ switchToMainGraph();
+}
+
+function refreshHiddenChart(doNext) {
+ if(refresh_mode == REFRESH_PAUSED && mainchart.hiddenchart.last_updated != 0) {
+ if(typeof doNext == "function") doNext();
+ return;
+ }
+
+ // is it too soon for a refresh?
+ var now = new Date().getTime();
+ if((now - mainchart.hiddenchart.last_updated) < (mainchart.update_every * 10 * 1000) || (now - mainchart.hiddenchart.last_updated) < (mainchart.hiddenchart.group * mainchart.hiddenchart.update_every * 1000)) {
+ if(typeof doNext == "function") doNext();
+ return;
+ }
+
+ if(mainchart.dashboard && mainchart.hiddenchart.refreshCount > 50) {
+ mainchart.dashboard.clear();
+ mainchart.control_wrapper.clear();
+ mainchart.hidden_wrapper.clear();
+
+ mainchart.dashboard = null;
+ mainchart.control_wrapper = null;
+ mainchart.hidden_wrapper = null;
+ mainchart.hiddenchart.last_updated = 0;
+ }
+
+ if(!mainchart.dashboard) {
+ var controlopts = $.extend(true, {}, mainchart.chartOptions, {
+ lineWidth: 1,
+ height: mainchart.hiddenchart.chartOptions.height,
+ chartArea: {'width': '98%'},
+ hAxis: {'baselineColor': 'none', viewWindowMode: 'maximized', gridlines: { count: 0 } },
+ vAxis: {'title': null, gridlines: { count: 0 } },
+ });
+
+ mainchart.dashboard = new google.visualization.Dashboard(document.getElementById('maingraph_dashboard'));
+ mainchart.control_wrapper = new google.visualization.ControlWrapper({
+ controlType: 'ChartRangeFilter',
+ containerId: 'maingraph_control',
+ options: {
+ filterColumnIndex: 0,
+ ui: {
+ chartType: mainchart.chartType,
+ chartOptions: controlopts,
+ minRangeSize: (mainchart.max_time_to_show * 1000) / MAINCHART_POINTS_DIVISOR,
+ }
+ },
+ });
+ mainchart.hidden_wrapper = new google.visualization.ChartWrapper({
+ chartType: mainchart.chartType,
+ containerId: 'maingraph_hidden',
+ options: {
+ isStacked: mainchart.chartOptions.isStacked,
+ width: mainchart.hiddenchart.chartOptions.width,
+ height: mainchart.hiddenchart.chartOptions.height,
+ //chartArea: {'height': '80%', 'width': '100%'},
+ //hAxis: {'slantedText': false},
+ //legend: {'position': 'none'}
+ },
+ });
+
+ mainchart.hiddenchart.refreshCount = 0;
+ }
+
+ // load the data for the control and the hidden wrappers
+ // calculate the group and points to show for the control chart
+ calculateChartPointsToShow(mainchart.hiddenchart, MAINCHART_CONTROL_DIVISOR, 0, -1, ENABLE_CURVE);
+
+ $.ajax({
+ url: generateChartURL(mainchart.hiddenchart),
+ dataType:"json",
+ cache: false
+ })
+ .done(function(jsondata) {
+ if(!jsondata || jsondata.length == 0) return;
+
+ mainchart.control_data = new google.visualization.DataTable(jsondata);
+
+ if(mainchart.hiddenchart.last_updated == 0) {
+ google.visualization.events.addListener(mainchart.control_wrapper, 'ready', mainchartControlReadyEvent);
+ mainchart.dashboard.bind(mainchart.control_wrapper, mainchart.hidden_wrapper);
+ }
+ if(refresh_mode != REFRESH_PAUSED) {
+ // console.log('mainchart.points_to_show: ' + mainchart.points_to_show + ', mainchart.group: ' + mainchart.group + ', mainchart.update_every: ' + mainchart.update_every);
+
+ var start = now - (mainchart.points_to_show * mainchart.group * mainchart.update_every * 1000);
+ var end = now;
+ var min = MAINCHART_MIN_TIME_TO_SHOW * 1000;
+ if(end - start < min) start = end - min;
+
+ mainchart.control_wrapper.setState({range: {
+ start: new Date(start),
+ end: new Date(end)
+ },
+ ui: {
+ minRangeSize: min
+ }});
+ }
+
+ mainchart.dashboard.draw(mainchart.control_data);
+ mainchart.hiddenchart.last_updated = new Date().getTime();
+ mainchart.hiddenchart.refreshCount++;
+ })
+ .always(function() {
+ if(typeof doNext == "function") doNext();
+ });
+}
+
+function mainchartControlReadyEvent() {
+ google.visualization.events.addListener(mainchart.control_wrapper, 'statechange', mainchartControlStateHandler);
+ //mylog(mainchart);
+}
+
+function mainchartControlStateHandler() {
+ // setMainChartPlay('pause');
+
+ var state = mainchart.control_wrapper.getState();
+ mainchart.after = Math.round(state.range.start.getTime() / 1000);
+ mainchart.before = Math.round(state.range.end.getTime() / 1000);
+
+ calculateChartPointsToShow(mainchart, mainchart.chartOptions.isStacked?MAINCHART_STACKED_POINTS_DIVISOR:MAINCHART_POINTS_DIVISOR, mainchart.before - mainchart.after, 0, ENABLE_CURVE);
+ //mylog('group = ' + mainchart.group + ', points_to_show = ' + mainchart.points_to_show + ', dt = ' + (mainchart.before - mainchart.after));
+
+ $('#group' + mainchart.group).trigger('click');
+ mainchart.last_updated = 0;
+
+ if(refresh_mode != REFRESH_PAUSED) pauseGraphs();
+}
+
+function initMainChartIndex(i) {
+ if(mode == MODE_GROUP_THUMBS)
+ initMainChart(groupCharts[i]);
+
+ else if(mode == MODE_THUMBS)
+ initMainChart(allCharts[i]);
+
+ else
+ initMainChart(allCharts[i]);
+}
+
+function initMainChartIndexOfMyCharts(i) {
+ initMainChart(allCharts[i]);
+}
+
+var last_main_chart_max='normal';
+function setMainChartMax(m) {
+ if(!mainchart) return;
+
+ if(m == 'toggle') {
+ if(last_main_chart_max == 'maximized') m = 'normal';
+ else m = 'maximized';
+ }
+
+ if(m == "maximized") {
+ mainchart.chartOptions.theme = 'maximized';
+ //mainchart.chartOptions.axisTitlesPosition = 'in';
+ //mainchart.chartOptions.legend = {position: 'none'};
+ mainchart.chartOptions.hAxis.title = null;
+ mainchart.chartOptions.hAxis.viewWindowMode = 'maximized';
+ mainchart.chartOptions.vAxis.viewWindowMode = 'maximized';
+ mainchart.chartOptions.chartArea = {'width': '98%', 'height': '100%'};
+ }
+ else {
+ mainchart.chartOptions.hAxis.title = null;
+ mainchart.chartOptions.theme = null;
+ mainchart.chartOptions.hAxis.viewWindowMode = null;
+ mainchart.chartOptions.vAxis.viewWindowMode = null;
+ mainchart.chartOptions.chartArea = {'width': '80%', 'height': '90%'};
+ }
+ $('.mainchart_max_button').button(m);
+ last_main_chart_max = m;
+ mainchart.last_updated = 0;
+}
+
+function setMainChartGroup(g, norefresh) {
+ if(!mainchart) return;
+
+ mainchart.group = g;
+
+ if(!mainchart.before && !mainchart.after)
+ calculateChartPointsToShow(mainchart, mainchart.chartOptions.isStacked?MAINCHART_STACKED_POINTS_DIVISOR:MAINCHART_POINTS_DIVISOR, mainchart.max_time_to_show, mainchart.group, ENABLE_CURVE);
+ else
+ calculateChartPointsToShow(mainchart, mainchart.chartOptions.isStacked?MAINCHART_STACKED_POINTS_DIVISOR:MAINCHART_POINTS_DIVISOR, 0, mainchart.group, ENABLE_CURVE);
+
+ if(!norefresh) {
+ mainchart.last_updated = 0;
+ }
+}
+
+var last_main_chart_avg = null;
+function setMainChartGroupMethod(g, norefresh) {
+ if(!mainchart) return;
+
+ if(g == 'toggle') {
+ if(last_main_chart_avg == 'max') g = 'average';
+ else g = 'max';
+ }
+
+ mainchart.group_method = g;
+
+ $('.mainchart_avg_button').button(g);
+
+ if(!norefresh) {
+ mainchart.last_updated = 0;
+ }
+
+ last_main_chart_avg = g;
+}
+
+function setMainChartPlay(p) {
+ if(!mainchart) return;
+
+ if(p == 'toggle') {
+ if(refresh_mode != REFRESH_ALWAYS) p = 'play';
+ else p = 'pause';
+ }
+
+ if(p == 'play') {
+ //mainchart.chartOptions.explorer = null;
+ mainchart.after = 0;
+ mainchart.before = 0;
+ calculateChartPointsToShow(mainchart, mainchart.chartOptions.isStacked?MAINCHART_STACKED_POINTS_DIVISOR:MAINCHART_POINTS_DIVISOR, mainchart.max_time_to_show, 0, ENABLE_CURVE);
+ $('#group' + mainchart.group).trigger('click');
+ mainchart.last_updated = 0;
+ mainchart.hiddenchart.last_updated = 0;
+ playGraphs();
+ }
+ else {
+ //mainchart.chartOptions.explorer = {
+ // 'axis': 'horizontal',
+ // 'maxZoomOut': 1,
+ //};
+ //mainchart.last_updated = 0;
+
+ //if(!renderChart(mainchart, pauseGraphs))
+ pauseGraphs();
+ }
+}
+
+function buttonGlobalPlayPause(p) {
+ if(mode == MODE_MAIN) {
+ setMainChartPlay(p);
+ return;
+ }
+
+ if(p == 'toggle') {
+ if(refresh_mode != REFRESH_ALWAYS) p = 'play';
+ else p = 'pause';
+ }
+
+ if(p == 'play') playGraphs();
+ else pauseGraphs();
+}
+
+
+// ------------------------------------------------------------------------
+// Chart resizing
+
+function screenWidth() {
+ return (($(window).width() * 0.95) - 50);
+}
+
+// calculate the proper width for the thumb charts
+function thumbWidth() {
+ var cwidth = screenWidth();
+ var items = Math.round(cwidth / TARGET_THUMB_GRAPH_WIDTH);
+ if(items < 1) items = 1;
+
+ if(items > 1 && (cwidth / items) < MINIMUM_THUMB_GRAPH_WIDTH) items--;
+
+ return Math.round(cwidth / items) - 1;
+}
+
+function groupChartSizes() {
+ var s = { width: screenWidth(), height: TARGET_GROUP_GRAPH_HEIGHT };
+
+ var count = 0;
+ if(groupCharts) $.each(groupCharts, function(i, c) {
+ if(c.enabled) count++;
+ });
+
+ if(count == 0) {
+ s.width = TARGET_GROUP_GRAPH_HEIGHT;
+ s.height = TARGET_GROUP_GRAPH_HEIGHT;
+ }
+ else {
+ if(s.width < MINIMUM_THUMB_GRAPH_WIDTH) s.width = screenWidth();
+ s.height = ($(window).height() - 130) / count - 10;
+ }
+
+ if(s.height < TARGET_GROUP_GRAPH_HEIGHT)
+ s.height = TARGET_GROUP_GRAPH_HEIGHT;
+
+ return s;
+}
+
+// resize all charts
+// if the thumb charts need resize in their width, reset them
+function resizeCharts() {
+ var width = screenWidth();
+
+ if(mainchart) {
+ mainchart.chartOptions.width = width;
+ mainchart.chartOptions.height = $(window).height() - 150 - MAINCHART_CONTROL_HEIGHT;
+ mainchart.last_updated = 0;
+
+ mainchart.hidden_wrapper.setOption('width', width);
+ mainchart.control_wrapper.setOption('ui.chartOptions.width', width);
+ mainchart.hiddenchart.chartOptions.width = width;
+ mainchart.hiddenchart.last_updated = 0;
+ }
+
+ width = thumbWidth();
+ $.each(allCharts, function(i, c) {
+ if(c.enabled) {
+ cleanThisChart(c);
+ c.chartOptions.width = width;
+ calculateChartPointsToShow(c, c.chartOptions.isStacked?THUMBS_STACKED_POINTS_DIVISOR:THUMBS_POINTS_DIVISOR, THUMBS_MAX_TIME_TO_SHOW, -1, ENABLE_CURVE);
+ showChartIsLoading(c.div, c.name, c.chartOptions.width, c.chartOptions.height);
+ document.getElementById(c.id + '_thumb_actions_div').innerHTML = thumbChartActions(i, c);
+ c.last_updated = 0;
+ }
+ });
+
+ if(groupCharts) $.each(groupCharts, function(i, c) {
+ var sizes = groupChartSizes();
+
+ if(c.enabled) {
+ cleanThisChart(c);
+ c.chartOptions.width = sizes.width;
+ c.chartOptions.height = sizes.height;
+ calculateChartPointsToShow(c, c.chartOptions.isStacked?GROUPS_STACKED_POINTS_DIVISOR:GROUPS_POINTS_DIVISOR, GROUPS_MAX_TIME_TO_SHOW, -1, ENABLE_CURVE);
+ showChartIsLoading(c.div, c.name, c.chartOptions.width, c.chartOptions.height);
+ document.getElementById(c.id + '_group_actions_div').innerHTML = groupChartActions(i, c);
+ c.last_updated = 0;
+ }
+ });
+
+ updateUI();
+}
+
+window.onresize = function(event) {
+ resize_request = true;
+};
+
+
+// ------------------------------------------------------------------------
+// Core of the thread refreshing the charts
+
+var REFRESH_PAUSED = 0;
+var REFRESH_ALWAYS = 1;
+
+var refresh_mode = REFRESH_PAUSED;
+var last_refresh = 0;
+function playGraphs() {
+ mylog('playGraphs()');
+ if(refresh_mode == REFRESH_ALWAYS) return;
+
+ //mylog('PlayGraphs()');
+ refresh_mode = REFRESH_ALWAYS;
+ $('.mainchart_play_button').button('play');
+ $('.global_play_button').button('play');
+
+ // check if the thread died due to a javascript error
+ var now = new Date().getTime();
+ if((now - last_refresh) > 60000) {
+ // it died or never started
+ //mylog('It seems the refresh thread died. Restarting it.');
+ renderChartCallback();
+ }
+}
+
+function pauseGraphs() {
+ mylog('pauseGraphs()');
+ if(refresh_mode == REFRESH_PAUSED) return;
+
+ refresh_mode = REFRESH_PAUSED;
+ $('.mainchart_play_button').button('pause');
+ $('.global_play_button').button('pause');
+}
+
+var interval = null;
+function checkRefreshThread() {
+ if(interval == null) {
+ interval = setInterval(checkRefreshThread, 2000);
+ return;
+ }
+
+ var now = new Date().getTime();
+ if(now - last_refresh > 60000) {
+ mylog('Refresh thread died. Restarting it.');
+ renderChartCallback();
+ }
+}
+
+// refresh the proper chart
+// this is an internal function.
+// never call it directly, or new javascript threads will be spawn
+var timeout = null;
+function renderChartCallback() {
+ last_refresh = new Date().getTime();
+
+ if(!page_is_visible) {
+ timeout = setTimeout(triggerRefresh, CHARTS_CHECK_NO_FOCUS);
+ return;
+ }
+
+ if(resize_request) {
+ mylog('renderChartCallback() resize_request is set');
+ cleanupCharts();
+ resizeCharts();
+ resize_request = false;
+ // refresh_mode = REFRESH_ALWAYS;
+ }
+
+ if(last_user_scroll) {
+ var now = new Date().getTime();
+ if((now - last_user_scroll) >= CHARTS_SCROLL_IDLE) {
+ last_user_scroll = 0;
+ mylog('Scrolling: resuming refresh...');
+ }
+ else {
+ mylog('Scrolling: pausing refresh for ' + (CHARTS_SCROLL_IDLE - (now - last_user_scroll)) + ' ms...');
+ timeout = setTimeout(triggerRefresh, CHARTS_SCROLL_IDLE - (now - last_user_scroll));
+ return;
+ }
+ }
+
+ if(refresh_mode == REFRESH_PAUSED) {
+ if(mode == MODE_MAIN && mainchart.last_updated == 0) {
+ mainChartRefresh();
+ return;
+ }
+
+ if(mode != MODE_MAIN) {
+ timeout = setTimeout(triggerRefresh, CHARTS_REFRESH_IDLE);
+ return;
+ }
+ }
+
+ if(mode == MODE_THUMBS) timeout = setTimeout(thumbChartsRefreshNext, CHARTS_REFRESH_LOOP);
+ else if(mode == MODE_GROUP_THUMBS) timeout = setTimeout(groupChartsRefreshNext, CHARTS_REFRESH_LOOP);
+ else if(mode == MODE_MAIN) timeout = setTimeout(mainChartRefresh, CHARTS_REFRESH_LOOP);
+ else timeout = setTimeout(triggerRefresh, CHARTS_REFRESH_IDLE);
+}
+
+// callback for refreshing the charts later
+// this is an internal function.
+// never call it directly, or new javascript threads will be spawn
+function triggerRefresh() {
+ //mylog('triggerRefresh()');
+
+ if(!page_is_visible || (refresh_mode == REFRESH_PAUSED && mode != MODE_MAIN)) {
+ last_refresh = new Date().getTime();
+ timeout = setTimeout(triggerRefresh, CHARTS_REFRESH_IDLE);
+ return;
+ }
+
+ if(mode == MODE_THUMBS) timeout = setTimeout(renderChartCallback, CHARTS_REFRESH_IDLE);
+ else if(mode == MODE_GROUP_THUMBS) timeout = setTimeout(renderChartCallback, CHARTS_REFRESH_IDLE);
+ else if(mode == MODE_MAIN) timeout = setTimeout(renderChartCallback, CHARTS_REFRESH_IDLE);
+ else timeout = setTimeout(triggerRefresh, CHARTS_REFRESH_IDLE);
+}
+
+// refresh the main chart
+// make sure we don't loose the refreshing thread
+function mainChartRefresh() {
+ //mylog('mainChartRefresh()');
+
+ if(mode != MODE_MAIN || !mainchart) {
+ triggerRefresh();
+ return;
+ }
+
+ if(refresh_mode == REFRESH_PAUSED && mainchart.last_updated != 0) {
+ hiddenChartRefresh();
+ return;
+ }
+
+ if(!renderChart(mainchart, hiddenChartRefresh))
+ hiddenChartRefresh();
+}
+
+function hiddenChartRefresh() {
+ refreshHiddenChart(triggerRefresh);
+}
+
+function roundRobinRenderChart(charts, startat) {
+ var refreshed = false;
+
+ // find a chart to refresh
+ var all = charts.length;
+ var cur = startat + 1;
+ var count = 0;
+
+ for(count = 0; count < all ; count++, cur++) {
+ if(cur >= all) cur = 0;
+
+ if(charts[cur].enabled) {
+ refreshed = renderChart(charts[cur], renderChartCallback);
+ if(refreshed) {
+ mylog('Refreshed: ' + charts[cur].name);
+ break;
+ }
+ }
+ }
+
+ if(!refreshed) triggerRefresh();
+ return cur;
+}
+
+// refresh the thumb charts
+// make sure we don't loose the refreshing thread
+var last_thumb_updated = 0;
+function thumbChartsRefreshNext() {
+ //mylog('thumbChartsRefreshNext()');
+
+ if(allCharts.length == 0 || mode != MODE_THUMBS) {
+ triggerRefresh();
+ return;
+ }
+
+ last_thumb_updated = roundRobinRenderChart(allCharts, last_thumb_updated);
+}
+
+// refresh the group charts
+// make sure we don't loose the refreshing thread
+var last_group_updated = 0;
+function groupChartsRefreshNext() {
+ //mylog('groupChartsRefreshNext()');
+
+ if(!groupCharts || groupCharts.length == 0 || mode != MODE_GROUP_THUMBS) {
+ //mylog('cannot refresh charts');
+ triggerRefresh();
+ return;
+ }
+
+ last_group_updated = roundRobinRenderChart(groupCharts, last_group_updated);
+}
+
+
+// ------------------------------------------------------------------------
+// switch the screen between views
+// these should be called only from initXXXX()
+
+function disableChart(i) {
+ mylog('disableChart(' + i + ')');
+
+ var chart = null;
+
+ var count = 0;
+ if(mode == MODE_GROUP_THUMBS && groupCharts) {
+ $.each(groupCharts, function(i, c) {
+ if(c.enabled) count++;
+ });
+
+ if(i < groupCharts.length) chart = groupCharts[i];
+ }
+ else if(mode == MODE_THUMBS) {
+ $.each(allCharts, function(i, c) {
+ if(c.enabled) count++;
+ });
+
+ if(i < allCharts.length) chart = allCharts[i];
+ }
+
+ if(!chart) return;
+
+ if(count <= 1) {
+ alert('Cannot close the last chart shown.');
+ return;
+ }
+
+ if(chart) {
+ mylog("request to disable chart " + chart.name);
+ chart.disablethisplease = true;
+ resize_request = true;
+ }
+ else
+ mylog("no chart to disable");
+}
+
+function cleanThisChart(chart, emptydivs) {
+ //mylog('cleanThisChart(' + chart.name + ', ' + emptydivs +')');
+
+ if(chart.dashboard) {
+ chart.dashboard.clear();
+ chart.dashboard = null;
+
+ if(chart.control_wrapper) {
+ chart.control_wrapper.clear();
+ chart.control_wrapper = null;
+ }
+
+ if(chart.hidden_wrapper) {
+ chart.hidden_wrapper.clear();
+ chart.hidden_wrapper = null;
+ }
+
+ chart.control_data = null;
+ }
+
+ if(chart.chart) chart.chart.clearChart();
+ chart.chart = null;
+
+ if(emptydivs) {
+ var div = document.getElementById(chart.div);
+ if(div) {
+ div.style.display = 'none';
+ div.innerHTML = "";
+ }
+
+ div = document.getElementById(chart.div + "_parent");
+ if(div) {
+ div.style.display = 'none';
+ div.innerHTML = "";
+ }
+ }
+
+ //mylog("chart " + chart.name + " cleaned with option " + emptydivs);
+}
+
+// cleanup the previously shown charts
+function cleanupCharts() {
+ // mylog('cleanupCharts()');
+
+ if(mode != MODE_MAIN && mainchart) {
+ if(mainchart.chart) cleanThisChart(mainchart);
+ mainchart = null;
+ }
+
+ if(mode != MODE_GROUP_THUMBS && groupCharts) {
+ clearGroupGraphs();
+ }
+
+ // cleanup the disabled charts
+ $.each(allCharts, function(i, c) {
+ if(c.disablethisplease && c.enabled) {
+ cleanThisChart(c, 'emptydivs');
+ c.disablethisplease = false;
+ c.enabled = false;
+ resize_request = true;
+ mylog("removed thumb chart " + c.name + " removed");
+ }
+ });
+
+ if(groupCharts) $.each(groupCharts, function(i, c) {
+ if(c.disablethisplease && c.enabled) {
+ cleanThisChart(c, 'emptydivs');
+ c.disablethisplease = false;
+ c.enabled = false;
+ resize_request = true;
+ mylog("removed group chart " + c.name + " removed");
+ }
+ });
+
+ // we never cleanup the main chart
+}
+
+function updateUI() {
+ $('[data-toggle="tooltip"]').tooltip({'container': 'body', 'html': true});
+
+ $('[data-spy="scroll"]').each(function () {
+ var $spy = $(this).scrollspy('refresh')
+ })
+}
+
+var thumbsScrollPosition = null;
+function switchToMainGraph() {
+ //mylog('switchToMainGraph()');
+
+ if(!mainchart) return;
+
+ if(!groupCharts) thumbsScrollPosition = window.pageYOffset;
+
+ document.getElementById('maingraph_container').style.display = 'block';
+ document.getElementById('thumbgraphs_container').style.display = 'none';
+ document.getElementById('groupgraphs_container').style.display = 'none';
+ document.getElementById('splash_container').style.display = 'none';
+
+ document.getElementById("main_menu_div").innerHTML = "<ul class=\"nav navbar-nav\"><li><a href=\"javascript:switchToThumbGraphs();\"><span class=\"glyphicon glyphicon-circle-arrow-left\"></span> Back to Dashboard</a></li><li class=\"active\"><a href=\"#\">" + mainchart.name + "</a></li>" + familiesmainmenu + chartsmainmenu + "</ul>" ;
+
+ window.scrollTo(0, 0);
+
+ mode = MODE_MAIN;
+ playGraphs();
+ updateUI();
+}
+
+function switchToThumbGraphs() {
+ //mylog('switchToThumbGraphs()');
+
+ document.getElementById('maingraph_container').style.display = 'none';
+ document.getElementById('thumbgraphs_container').style.display = 'block';
+ document.getElementById('groupgraphs_container').style.display = 'none';
+ document.getElementById('splash_container').style.display = 'none';
+
+ document.getElementById("main_menu_div").innerHTML = mainmenu;
+
+ if(thumbsScrollPosition) window.scrollTo(0, thumbsScrollPosition);
+
+ // switch mode
+ mode = MODE_THUMBS;
+ playGraphs();
+ updateUI();
+}
+
+function switchToGroupGraphs() {
+ //mylog('switchToGroupGraphs()');
+
+ if(!groupCharts) return;
+
+ if(!mainchart) thumbsScrollPosition = window.pageYOffset;
+
+ document.getElementById('maingraph_container').style.display = 'none';
+ document.getElementById('thumbgraphs_container').style.display = 'none';
+ document.getElementById('groupgraphs_container').style.display = 'block';
+ document.getElementById('splash_container').style.display = 'none';
+
+ document.getElementById("main_menu_div").innerHTML = "<ul class=\"nav navbar-nav\"><li><a href=\"javascript:switchToThumbGraphs();\"><span class=\"glyphicon glyphicon-circle-arrow-left\"></span> Back to Dashboard</a></li><li class=\"active\"><a href=\"#\">" + groupCharts[0].family + "</a></li>" + familiesmainmenu + chartsmainmenu + "</ul>";
+
+ window.scrollTo(0, 0);
+
+ mode = MODE_GROUP_THUMBS;
+ playGraphs();
+ updateUI();
+}
+
+
+// ------------------------------------------------------------------------
+// Group Charts
+
+var groupCharts = null;
+function initGroupGraphs(group) {
+ var count = 0;
+
+ if(groupCharts) clearGroupGraphs();
+ groupCharts = new Array();
+
+ var groupbody = "";
+ $.each(allCharts, function(i, c) {
+ if(c.family == group) {
+ groupCharts[count] = [];
+ groupCharts[count] = $.extend(true, {}, c);
+ groupCharts[count].div += "_group";
+ groupCharts[count].enabled = true;
+ groupCharts[count].chart = null;
+ groupCharts[count].last_updated = 0;
+ count++;
+ }
+ });
+ groupCharts.sort(chartssort);
+
+ var sizes = groupChartSizes();
+
+ var groupbody = "";
+ $.each(groupCharts, function(i, c) {
+ c.chartOptions.width = sizes.width;
+ c.chartOptions.height = sizes.height;
+ c.chartOptions.chartArea.width = '85%';
+ c.chartOptions.chartArea.height = '90%';
+ c.chartOptions.hAxis.textPosition = 'in';
+ c.chartOptions.hAxis.viewWindowMode = 'maximized';
+ c.chartOptions.hAxis.textStyle = { "fontSize": 9 };
+ c.chartOptions.vAxis.textStyle = { "fontSize": 9 };
+ c.chartOptions.fontSize = 11;
+ c.chartOptions.titlePosition = 'in';
+ c.chartOptions.tooltip = { "textStyle": { "fontSize": 9 } };
+ c.chartOptions.legend = { "textStyle": { "fontSize": 9 } };
+
+ calculateChartPointsToShow(c, c.chartOptions.isStacked?GROUPS_STACKED_POINTS_DIVISOR:GROUPS_POINTS_DIVISOR, GROUPS_MAX_TIME_TO_SHOW, -1, ENABLE_CURVE);
+
+ groupbody += "<div class=\"thumbgraph\" id=\"" + c.div + "_parent\"><table><tr><td width='" + sizes.width + "'><div class=\"thumbgraph\" id=\"" + c.div + "\">" + chartIsLoadingHTML(c.name, c.chartOptions.width, c.chartOptions.height) + "</div></td><td id=\"" + c.id + "_group_actions_div\" align=\"center\">" + groupChartActions(i, c) + "</td></tr><tr><td width='15'></td></tr></table></div>";
+ //groupbody += "<div class=\"thumbgraph\" id=\"" + c.div + "\">" + chartIsLoadingHTML(c.name, c.chartOptions.width, c.chartOptions.height) + "</div>";
+ });
+ groupbody += "";
+
+ document.getElementById("groupgraphs").innerHTML = groupbody;
+ switchToGroupGraphs();
+}
+
+function clearGroupGraphs() {
+ if(groupCharts && groupCharts.length) {
+ $.each(groupCharts, function(i, c) {
+ cleanThisChart(c, 'emptydivs');
+ });
+
+ groupCharts = null;
+ }
+
+ document.getElementById("groupgraphs").innerHTML = "";
+}
+
+
+// ------------------------------------------------------------------------
+// Global entry point
+// initialize the thumb charts
+
+var last_user_scroll = 0;
+
+// load the charts from the server
+// generate html for the thumbgraphs to support them
+function initCharts() {
+ setPresentationNormal(1);
+
+ var width = thumbWidth();
+ var height = TARGET_THUMB_GRAPH_HEIGHT;
+
+ window.onscroll = function (e) {
+ last_user_scroll = new Date().getTime();
+ mylog('Scrolling: detected');
+ }
+
+ loadCharts(null, function(all) {
+ allCharts = all.charts;
+
+ if(allCharts == null || allCharts.length == 0) {
+ alert("Cannot load data from server.");
+ return;
+ }
+
+ var thumbsContainer = document.getElementById("thumbgraphs");
+ if(!thumbsContainer) {
+ alert("Cannot find the thumbsContainer");
+ return;
+ }
+
+ allCharts.sort(chartssort);
+
+ document.getElementById('hostname_id').innerHTML = all.hostname;
+ document.title = all.hostname;
+
+ // create an array for grouping all same-type graphs together
+ var dimensions = 0;
+ var categories = new Array();
+ var families = new Array();
+ var chartslist = new Array();
+ $.each(allCharts, function(i, c) {
+ var j;
+
+ chartslist.push({name: c.name, type: c.type, id: i});
+
+ dimensions += c.dimensions.length;
+ c.chartOptions.width = width;
+ c.chartOptions.height = height;
+
+ // calculate how many point to show for each chart
+ //c.points_to_show = Math.round(c.entries / c.group) - 1;
+ // show max 10 mins of data
+ //if(c.points_to_show * c.group > THUMBS_MAX_TIME_TO_SHOW) c.points_to_show = THUMBS_MAX_TIME_TO_SHOW / c.group;
+ calculateChartPointsToShow(c, c.chartOptions.isStacked?THUMBS_STACKED_POINTS_DIVISOR:THUMBS_POINTS_DIVISOR, THUMBS_MAX_TIME_TO_SHOW, -1, ENABLE_CURVE);
+
+ if(c.enabled) {
+ var h = "<div class=\"thumbgraph\" id=\"" + c.div + "_parent\"><table><tr><td><div class=\"thumbgraph\" id=\"" + c.div + "\">" + chartIsLoadingHTML(c.name, c.chartOptions.width, c.chartOptions.height) + "</div></td></tr><tr><td id=\"" + c.id + "_thumb_actions_div\" align=\"center\">"
+ + thumbChartActions(i, c)
+ + "</td></tr><tr><td height='15'></td></tr></table></div>";
+
+ // find the categories object for this type
+ for(j = 0; j < categories.length ;j++) {
+ if(categories[j].name == c.type) {
+ categories[j].html += h;
+ categories[j].count++;
+ break;
+ }
+ }
+
+ if(j == categories.length)
+ categories.push({name: c.type, title: c.category, description: '', priority: c.categoryPriority, count: 1, glyphicon: c.glyphicon, html: h});
+ }
+
+ // find the families object for this type
+ for(j = 0; j < families.length ;j++) {
+ if(families[j].name == c.family) {
+ families[j].count++;
+ break;
+ }
+ }
+
+ if(j == families.length)
+ families.push({name: c.family, count: 1});
+ });
+
+ document.getElementById('server_summary_id').innerHTML = "<small>NetData server at <b>" + all.hostname + "</b> is maintaining <b>" + allCharts.length + "</b> charts, having <b>" + dimensions + "</b> dimensions (by default with <b>" + all.history + "</b> entries each), which are updated every <b>" + all.update_every + "s</b>, using a total of <b>" + (Math.round(all.memory * 10 / 1024 / 1024) / 10) + " MB</b> for the round robin database.</small>";
+
+ $.each(categories, function(i, a) {
+ a.html = "<tr><td id=\"" + a.name + "\"><ol class=\"breadcrumb graphs\"><li class=\"active\"><span class=\"glyphicon " + a.glyphicon + "\"></span> &nbsp; <a id=\"" + a.name + "\" href=\"#" + a.name + "\"><b>" + a.title + "</b> " + a.description + " </a></li></ol></td></tr><tr><td><div class=\"thumbgraphs\">" + a.html + "</td></tr>";
+ });
+
+ function categoriessort(a, b) {
+ if(a.priority < b.priority) return -1;
+ return 1;
+ }
+ categories.sort(categoriessort);
+
+ function familiessort(a, b) {
+ if(a.name < b.name) return -1;
+ return 1;
+ }
+ families.sort(familiessort);
+
+ function chartslistsort(a, b) {
+ if(a.name < b.name) return -1;
+ return 1;
+ }
+ chartslist.sort(chartslistsort);
+
+ // combine all the htmls into one
+ var allcategories = "<table width=\"100%\">";
+ mainmenu = '<ul class="nav navbar-nav">';
+
+ categoriesmainmenu = '<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown"><span class=\"glyphicon glyphicon-fire\"></span> Dashboard Sections <b class="caret"></b></a><ul class="dropdown-menu">';
+ $.each(categories, function(i, a) {
+ allcategories += a.html;
+ categoriesmainmenu += "<li><a href=\"#" + a.name + "\">" + a.title + "</a></li>";
+ });
+ categoriesmainmenu += "</ul></li>";
+ allcategories += "</table>";
+
+ familiesmainmenu = '<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown"><span class=\"glyphicon glyphicon-th-large\"></span> Chart Families <b class="caret"></b></a><ul class="dropdown-menu">';
+ $.each(families, function(i, a) {
+ familiesmainmenu += "<li><a href=\"javascript:initGroupGraphs('" + a.name + "');\">" + a.name + " <span class=\"badge pull-right\">" + a.count + "</span></a></li>";
+ });
+ familiesmainmenu += "</ul></li>";
+
+ chartsmainmenu = '<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown"><span class=\"glyphicon glyphicon-resize-full\"></span> All Charts <b class="caret"></b></a><ul class="dropdown-menu">';
+ $.each(chartslist, function(i, a) {
+ chartsmainmenu += "<li><a href=\"javascript:initMainChartIndexOfMyCharts('" + a.id + "');\">" + a.name + "</a></li>";
+ });
+ chartsmainmenu += "</ul></li>";
+
+ mainmenu += categoriesmainmenu;
+ mainmenu += familiesmainmenu;
+ mainmenu += chartsmainmenu;
+ mainmenu += '<li role="presentation" class="disabled" style="display: none;"><a href="#" id="logline"></a></li></ul>';
+
+ thumbsContainer.innerHTML = allcategories;
+ switchToThumbGraphs();
+ checkRefreshThread();
+ });
+}
+
+$(window).blur(function() {
+ page_is_visible = 0;
+ mylog('Lost Focus!');
+});
+
+$(window).focus(function() {
+ page_is_visible = 1;
+ mylog('Focus restored!');
+});
+
+// Set a callback to run when the Google Visualization API is loaded.
+google.setOnLoadCallback(initCharts);