var a = i.split('.');
if(a[0] === 'options') {
- if(a[1] === 'options.setOptionCallback') continue;
+ if(a[1] === 'setOptionCallback') continue;
if(typeof NETDATA.localStorage.default[i] === 'undefined') continue;
if(NETDATA.options.current[i] === NETDATA.localStorage.default[i]) continue;
// hidden all the not-visible charts
// using this little function we try to switch
// the charts back to visible quickly
- var targets = NETDATA.options.targets;
- var len = targets.length;
- while(len--) targets[len].isVisible();
+ //var targets = NETDATA.options.targets;
+ //var len = targets.length;
+ //while(len--) targets[len].isVisible();
}
// ----------------------------------------------------------------------------------------------------------------
// dimensions selection
// FIXME
+ // move color assignment to dimensions, here
dimensionStatus = function(parent, label, name_div, value_div, color) {
this.enabled = false;
// ----------------------------------------------------------------------------------------------------------------
- // Our state object, where all per-chart values are stored
+ // global selection sync
- resizeCallback = function(state) {
- this.state = state;
- this.resize = function(height) {
- this.state
+ NETDATA.globalSelectionSync = {
+ state: null,
+ dont_sync_before: 0,
+ last_t: 0,
+ slaves: [],
+
+ stop: function() {
+ if(this.state !== null)
+ this.state.globalSelectionSyncStop();
+ },
+
+ delay: function() {
+ if(this.state !== null) {
+ this.state.globalSelectionSyncDelay();
+ }
}
- }
+ };
+
+ // ----------------------------------------------------------------------------------------------------------------
+ // Our state object, where all per-chart values are stored
chartState = function(element) {
var self = $(element);
+ this.element = element;
+
+ // IMPORTANT:
+ // all private functions should use 'that', instead of 'this'
+ var that = this;
+
+ /* error() - private
+ * show an error instead of the chart
+ */
+ var error = function(msg) {
+ that.element.innerHTML = that.id + ': ' + msg;
+ that.enabled = false;
+ that.current = that.pan;
+ }
// GUID - a unique identifier for the chart
this.uuid = NETDATA.guid();
this.height = self.data('height') || NETDATA.chartDefaults.height;
if(this.settings_id !== null) {
- var me = this;
this.height = NETDATA.localStorageGet('chart_heights.' + this.settings_id, this.height, function(height) {
- me.resizeAndRedrawChart(height);
+ // this is the callback that will be called
+ // if and when the user resets all localStorage variables
+ // to their defaults
+
+ resizeChartToHeight(height);
});
}
- $.extend(this, {
- // string - the netdata server URL, without any path
- host: self.data('host') || NETDATA.chartDefaults.host,
-
- // string - the grouping method requested by the user
- method: self.data('method') || NETDATA.chartDefaults.method,
-
- // the time-range requested by the user
- after: self.data('after') || NETDATA.chartDefaults.after,
- before: self.data('before') || NETDATA.chartDefaults.before,
-
- // the pixels per point requested by the user
- pixels_per_point: self.data('pixels-per-point') || 1,
- points: self.data('points') || null,
-
- // the dimensions requested by the user
- dimensions: self.data('dimensions') || null,
-
- // the chart library requested by the user
- library_name: self.data('chart-library') || NETDATA.chartDefaults.library,
- library: null, // object - the chart library used
-
- colors: null,
- colors_assigned: {},
- colors_available: null,
-
- element: element, // the element already created by the user
- element_message: null,
- element_loading: null,
- element_chart: null, // the element with the chart
- element_chart_id: null,
- element_legend: null, // the element with the legend of the chart (if created by us)
- element_legend_id: null,
- element_legend_childs: {
- hidden: null,
- title_date: null,
- title_time: null,
- title_units: null,
- nano: null,
- nano_options: null,
- series: null
- },
-
- chart_url: null, // string - the url to download chart info
- chart: null, // object - the chart as downloaded from the server
-
- validated: false, // boolean - has the chart been validated?
- enabled: true, // boolean - is the chart enabled for refresh?
- paused: false, // boolean - is the chart paused for any reason?
- selected: false, // boolean - is the chart shown a selection?
- debug: false, // boolean - console.log() debug info about this chart
+ // string - the netdata server URL, without any path
+ this.host = self.data('host') || NETDATA.chartDefaults.host;
- dom_created: false, // boolean - is the DOM for the chart created?
- chart_created: false, // boolean - is the library.create() been called?
-
- updates_counter: 0, // numeric - the number of refreshes made so far
- updates_since_last_creation: 0,
+ // make sure the host does not end with /
+ // all netdata API requests use absolute paths
+ while(this.host.slice(-1) === '/')
+ this.host = this.host.substring(0, this.host.length - 1);
- tm: {
- last_info_downloaded: 0, // milliseconds - the timestamp we downloaded the chart
+ // string - the grouping method requested by the user
+ this.method = self.data('method') || NETDATA.chartDefaults.method;
- last_updated: 0, // the timestamp the chart last updated with data
+ // the time-range requested by the user
+ this.after = self.data('after') || NETDATA.chartDefaults.after;
+ this.before = self.data('before') || NETDATA.chartDefaults.before;
- pan_and_zoom_seq: 0, // the sequence number of the global synchronization
- // between chart.
- // Used with NETDATA.globalPanAndZoom.seq
+ // the pixels per point requested by the user
+ this.pixels_per_point = self.data('pixels-per-point') || 1;
+ this.points = self.data('points') || null;
- last_visible_check: 0, // the time we last checked if it is visible
+ // the dimensions requested by the user
+ this.dimensions = self.data('dimensions') || null;
- last_resized: 0, // the time the chart was resized
- last_hidden: 0, // the time the chart was hidden
- last_unhidden: 0, // the time the chart was unhidden
+ // the chart library requested by the user
+ this.library_name = self.data('chart-library') || NETDATA.chartDefaults.library;
- last_autorefreshed: 0 // the time the chart was last refreshed
- },
+ // object - the chart library used
+ this.library = null;
- data: null, // the last data as downloaded from the netdata server
- data_url: 'invalid://', // string - the last url used to update the chart
- data_points: 0, // number - the number of points returned from netdata
- data_after: 0, // milliseconds - the first timestamp of the data
- data_before: 0, // milliseconds - the last timestamp of the data
- data_update_every: 0, // milliseconds - the frequency to update the data
- netdata_first: 0, // milliseconds - the first timestamp in netdata
- netdata_last: 0, // milliseconds - the last timestamp in netdata
-
- dimensions_visibility: new dimensionsVisibility(this),
-
- current: null, // auto, pan, zoom
- // this is a pointer to one of the sub-classes below
-
- auto: {
- name: 'auto',
- autorefresh: true,
- force_update_at: 0, // the timestamp to force the update at
- force_before_ms: null,
- force_after_ms: null,
- requested_before_ms: null,
- requested_after_ms: null,
- },
- pan: {
- name: 'pan',
- autorefresh: false,
- force_update_at: 0, // the timestamp to force the update at
- force_before_ms: null,
- force_after_ms: null,
- requested_before_ms: null,
- requested_after_ms: null,
- },
- zoom: {
- name: 'zoom',
- autorefresh: false,
- force_update_at: 0, // the timestamp to force the update at
- force_before_ms: null,
- force_after_ms: null,
- requested_before_ms: null,
- requested_after_ms: null,
- },
+ // color management
+ this.colors = null;
+ this.colors_assigned = {};
+ this.colors_available = null;
- refresh_dt_ms: 0, // milliseconds - the time the last refresh took
- refresh_dt_element_name: self.data('dt-element-name') || null, // string - the element to print refresh_dt_ms
- refresh_dt_element: null
- });
+ // the element already created by the user
+ this.element_message = null;
- this.init();
- }
+ // the element with the chart
+ this.element_chart = null;
- // ----------------------------------------------------------------------------------------------------------------
- // Chart Resize
-
- // this is actual chart resize algorithm
- // it will:
- // - resize the entire container
- // - update the internal states
- // - resize the chart as the div changes height
- // - update the scrollbar of the legend
- chartState.prototype.resizeAndRedrawChart = function(h) {
- // console.log(h);
- this.element.style.height = h;
-
- if(this.settings_id !== null)
- NETDATA.localStorageSet('chart_heights.' + this.settings_id, h);
-
- var now = new Date().getTime();
- NETDATA.options.last_page_scroll = now;
- NETDATA.options.last_resized = now;
- NETDATA.options.auto_refresher_stop_until = now + NETDATA.options.current.stop_updates_while_resizing;
-
- if(typeof this.library.resize === 'function' && this.element_chart !== null)
- this.library.resize(this);
-
- if(this.element_legend_childs.nano !== null && this.element_legend_childs.nano_options !== null)
- $(this.element_legend_childs.nano).nanoScroller();
- };
+ // the element with the legend of the chart (if created by us)
+ this.element_legend = null;
+ this.element_legend_childs = {
+ hidden: null,
+ title_date: null,
+ title_time: null,
+ title_units: null,
+ nano: null,
+ nano_options: null,
+ series: null
+ };
- chartState.prototype.resizeHandler = function(e) {
- e.preventDefault();
+ this.chart_url = null; // string - the url to download chart info
+ this.chart = null; // object - the chart as downloaded from the server
+
+ this.validated = false; // boolean - has the chart been validated?
+ this.enabled = true; // boolean - is the chart enabled for refresh?
+ this.paused = false; // boolean - is the chart paused for any reason?
+ this.selected = false; // boolean - is the chart shown a selection?
+ this.debug = false; // boolean - console.log() debug info about this chart
+
+ this.netdata_first = 0; // milliseconds - the first timestamp in netdata
+ this.netdata_last = 0; // milliseconds - the last timestamp in netdata
+ this.requested_after = null; // milliseconds - the timestamp of the request after param
+ this.requested_before = null; // milliseconds - the timestamp of the request before param
+
+ this.auto = {
+ name: 'auto',
+ autorefresh: true,
+ force_update_at: 0, // the timestamp to force the update at
+ force_before_ms: null,
+ force_after_ms: null
+ };
+ this.pan = {
+ name: 'pan',
+ autorefresh: false,
+ force_update_at: 0, // the timestamp to force the update at
+ force_before_ms: null,
+ force_after_ms: null
+ };
+ this.zoom = {
+ name: 'zoom',
+ autorefresh: false,
+ force_update_at: 0, // the timestamp to force the update at
+ force_before_ms: null,
+ force_after_ms: null
+ };
- if(typeof this.event_resize === 'undefined'
- || this.event_resize.chart_original_w === 'undefined'
- || this.event_resize.chart_original_h === 'undefined')
- this.event_resize = {
- chart_original_w: this.element.clientWidth,
- chart_original_h: this.element.clientHeight,
- last: 0
- };
+ // this is a pointer to one of the sub-classes below
+ // auto, pan, zoom
+ this.current = this.auto;
- if(e.type === 'touchstart') {
- this.event_resize.mouse_start_x = e.touches.item(0).pageX;
- this.event_resize.mouse_start_y = e.touches.item(0).pageY;
+ // check the requested library is available
+ // we don't initialize it here - it will be initialized when
+ // this chart will be first used
+ if(typeof NETDATA.chartLibraries[that.library_name] === 'undefined') {
+ NETDATA.error(402, that.library_name);
+ error('chart library "' + that.library_name + '" is not found');
+ return;
}
- else {
- this.event_resize.mouse_start_x = e.clientX;
- this.event_resize.mouse_start_y = e.clientY;
+ else if(NETDATA.chartLibraries[that.library_name].enabled === false) {
+ NETDATA.error(403, that.library_name);
+ error('chart library "' + that.library_name + '" is not enabled');
+ return;
}
+ else
+ that.library = NETDATA.chartLibraries[that.library_name];
- this.event_resize.chart_start_w = this.element.clientWidth;
- this.event_resize.chart_start_h = this.element.clientHeight;
- this.event_resize.chart_last_w = this.element.clientWidth;
- this.event_resize.chart_last_h = this.element.clientHeight;
+ // milliseconds - the time the last refresh took
+ this.refresh_dt_ms = 0;
- var now = new Date().getTime();
- if(now - this.event_resize.last <= NETDATA.options.current.double_click_speed) {
- // double click / double tap event
+ // if we need to report the rendering speed
+ // find the element that needs to be updated
+ var refresh_dt_element_name = self.data('dt-element-name') || null; // string - the element to print refresh_dt_ms
- // the optimal height of the chart
- // showing the entire legend
- var optimal = this.event_resize.chart_last_h
- + this.element_legend_childs.content.scrollHeight
- - this.element_legend_childs.content.clientHeight;
+ if(refresh_dt_element_name !== null)
+ this.refresh_dt_element = document.getElementById(refresh_dt_element_name) || null;
+ else
+ this.refresh_dt_element = null;
- // if we are not optimal, be optimal
- if(this.event_resize.chart_last_h != optimal)
- this.resizeAndRedrawChart(optimal.toString() + 'px');
+ this.dimensions_visibility = new dimensionsVisibility(this);
- // else if we do not have the original height
- // reset to the original height
- else if(this.event_resize.chart_last_h != this.event_resize.chart_original_h)
- this.resizeAndRedrawChart(this.event_resize.chart_original_h.toString() + 'px');
- }
- else {
- this.event_resize.last = now;
- var self = this;
+ // ============================================================================================================
+ // PRIVATE FUNCTIONS
- // process movement event
- document.onmousemove =
- document.ontouchmove =
- this.element_legend_childs.resize_handler.onmousemove =
- this.element_legend_childs.resize_handler.ontouchmove =
- function(e) {
- var y = null;
-
- switch(e.type) {
- case 'mousemove': y = e.clientY; break;
- case 'touchmove': y = e.touches.item(e.touches - 1).pageY; break;
- }
+ var createDOM = function() {
+ if(that.enabled == false) return;
- if(y !== null) {
- var newH = self.event_resize.chart_start_h + y - self.event_resize.mouse_start_y;
+ if(that.element_message !== null) that.element_message.innerHTML = '';
+ if(that.element_legend !== null) that.element_legend.innerHTML = '';
+ if(that.element_chart !== null) that.element_chart.innerHTML = '';
- if(newH >= 70 && newH !== self.event_resize.chart_last_h) {
- self.resizeAndRedrawChart(newH.toString() + 'px');
- self.event_resize.chart_last_h = newH;
- }
- }
- };
+ that.element.innerHTML = '';
- // process end event
- document.onmouseup =
- document.ontouchend =
- this.element_legend_childs.resize_handler.onmouseup =
- this.element_legend_childs.resize_handler.ontouchend =
- function(e) {
- // remove all the hooks
- document.onmouseup =
- document.onmousemove =
- document.ontouchmove =
- document.ontouchend =
- self.element_legend_childs.resize_handler.onmousemove =
- self.element_legend_childs.resize_handler.ontouchmove =
- self.element_legend_childs.resize_handler.onmouseout =
- self.element_legend_childs.resize_handler.onmouseup =
- self.element_legend_childs.resize_handler.ontouchend =
- null;
-
- // allow auto-refreshes
- NETDATA.options.auto_refresher_stop_until = 0;
- };
- }
- }
+ that.element_message = document.createElement('div');
+ that.element_message.className = ' netdata-message hidden';
+ that.element.appendChild(that.element_message);
-
- // ----------------------------------------------------------------------------------------------------------------
- // global selection sync
+ that.element_chart = document.createElement('div');
+ that.element_chart.id = that.library_name + '-' + that.uuid + '-chart';
+ that.element.appendChild(that.element_chart);
- NETDATA.globalSelectionSync = {
- state: null,
- dont_sync_before: 0,
- slaves: []
- };
+ if(that.hasLegend() === true) {
+ that.element.className = "netdata-container-with-legend";
+ that.element_chart.className = 'netdata-chart-with-legend-right netdata-' + that.library_name + '-chart-with-legend-right';
- // prevent to global selection sync for some time
- chartState.prototype.globalSelectionSyncDelay = function(ms) {
- if(NETDATA.options.current.sync_selection === false)
- return;
+ that.element_legend = document.createElement('div');
+ that.element_legend.className = 'netdata-chart-legend netdata-' + that.library_name + '-legend';
+ that.element.appendChild(that.element_legend);
+ }
+ else {
+ that.element.className = "netdata-container";
+ that.element_chart.className = ' netdata-chart netdata-' + that.library_name + '-chart';
- if(typeof ms === 'number')
- NETDATA.globalSelectionSync.dont_sync_before = new Date().getTime() + ms;
- else
- NETDATA.globalSelectionSync.dont_sync_before = new Date().getTime() + NETDATA.options.current.sync_selection_delay;
- }
+ that.element_legend = null;
+ }
+ that.element_legend_childs.series = null;
- // can we globally apply selection sync?
- chartState.prototype.globalSelectionSyncAbility = function() {
- if(NETDATA.options.current.sync_selection === false)
- return false;
+ if(that.width !== 0)
+ $(that.element).css('width', that.width);
- if(NETDATA.globalSelectionSync.dont_sync_before > new Date().getTime()) return false;
- return true;
- }
+ if(that.height !== 0)
+ $(that.element).css('height', that.height);
- chartState.prototype.globalSelectionSyncIsMaster = function() {
- if(NETDATA.globalSelectionSync.state === this)
- return true;
- else
- return false;
- }
+ if(NETDATA.chartDefaults.min_width !== null)
+ $(that.element).css('min-width', NETDATA.chartDefaults.min_width);
- // this chart is the master of the global selection sync
- chartState.prototype.globalSelectionSyncBeMaster = function() {
- // am I the master?
- if(this.globalSelectionSyncIsMaster()) {
- if(this.debug === true)
- this.log('sync: I am the master already.');
+ that.tm.last_dom_created = new Date().getTime();
- return;
+ showLoading();
}
- if(NETDATA.globalSelectionSync.state) {
- if(this.debug === true)
- this.log('sync: I am not the sync master. Resetting global sync.');
+ /* init() private
+ * initialize state viariables
+ * destroy all (possibly) created state elements
+ * create the basic DOM for a chart
+ */
+ var init = function() {
+ if(that.enabled == false) return;
- this.globalSelectionSyncStop();
- }
+ that.paused = false;
+ that.selected = false;
- // become the master
- if(this.debug === true)
- this.log('sync: becoming sync master.');
+ that.chart_created = false; // boolean - is the library.create() been called?
+ that.updates_counter = 0; // numeric - the number of refreshes made so far
+ that.updates_since_last_creation = 0;
- this.selected = true;
- NETDATA.globalSelectionSync.state = this;
+ that.tm = {
+ last_initialized: 0, // milliseconds - the timestamp it was last initialized
+ last_dom_created: 0, // milliseconds - the timestamp its DOM was last created
+ last_mode_switch: 0, // milliseconds - the timestamp it switched modes
- // find the all slaves
- var targets = NETDATA.options.targets;
- var len = targets.length;
- while(len--) {
- st = targets[len];
+ last_info_downloaded: 0, // milliseconds - the timestamp we downloaded the chart
+ last_updated: 0, // the timestamp the chart last updated with data
+ pan_and_zoom_seq: 0, // the sequence number of the global synchronization
+ // between chart.
+ // Used with NETDATA.globalPanAndZoom.seq
+ last_visible_check: 0, // the time we last checked if it is visible
+ last_resized: 0, // the time the chart was resized
+ last_hidden: 0, // the time the chart was hidden
+ last_unhidden: 0, // the time the chart was unhidden
+ last_autorefreshed: 0 // the time the chart was last refreshed
+ },
- if(st === this) {
- if(this.debug === true)
- st.log('sync: not adding me to sync');
- }
- else if(st.globalSelectionSyncIsEligible()) {
- if(this.debug === true)
- st.log('sync: adding to sync as slave');
+ that.data = null; // the last data as downloaded from the netdata server
+ that.data_url = 'invalid://'; // string - the last url used to update the chart
+ that.data_points = 0; // number - the number of points returned from netdata
+ that.data_after = 0; // milliseconds - the first timestamp of the data
+ that.data_before = 0; // milliseconds - the last timestamp of the data
+ that.data_update_every = 0; // milliseconds - the frequency to update the data
- st.globalSelectionSyncBeSlave();
- }
+ that.tm.last_initialized = new Date().getTime();
+ createDOM();
+
+ that.setMode('auto');
}
- // this.globalSelectionSyncDelay(100);
- }
+ var maxMessageFontSize = function() {
+ // normally we want a font size, as tall as the element
+ var h = that.element_message.clientHeight;
- // can the chart participate to the global selection sync as a slave?
- chartState.prototype.globalSelectionSyncIsEligible = function() {
- if(this.enabled === true
- && this.library !== null
- && typeof this.library.setSelection === 'function'
- && this.isVisible()
- && this.dom_created === true
- && this.chart_created === true)
- return true;
+ // but give it some air, 20% let's say, or 5 pixels min
+ var lost = Math.max(h * 0.2, 5);
+ h -= lost;
- return false;
- }
+ // center the text, verically
+ var paddingTop = (lost - 5) / 2;
- // this chart is a slave of the global selection sync
- chartState.prototype.globalSelectionSyncBeSlave = function() {
- if(NETDATA.globalSelectionSync.state !== this)
- NETDATA.globalSelectionSync.slaves.push(this);
- }
+ // but check the width too
+ // it should fit 10 characters in it
+ var w = that.element_message.clientWidth / 10;
+ if(h > w) {
+ paddingTop += (h - w) / 2;
+ h = w;
+ }
- // sync all the visible charts to the given time
- // this is to be called from the chart libraries
- chartState.prototype.globalSelectionSync = function(t) {
- if(this.globalSelectionSyncAbility() === false) {
- if(this.debug === true)
- this.log('sync: cannot sync (yet?).');
+ // and don't make it too huge
+ // 5% of the screen size is good
+ if(h > screen.height / 20) {
+ paddingTop += (h - (screen.height / 20)) / 2;
+ h = screen.height / 20;
+ }
- return;
+ // set it
+ that.element_message.style.fontSize = h.toString() + 'px';
+ that.element_message.style.paddingTop = paddingTop.toString() + 'px';
}
- if(this.globalSelectionSyncIsMaster() === false) {
- if(this.debug === true)
- this.log('sync: trying to be sync master.');
-
- this.globalSelectionSyncBeMaster();
+ var showMessage = function(msg) {
+ that.element_message.className = 'netdata-message';
+ that.element_message.innerHTML = msg;
+ this.element_message.style.fontSize = 'x-small';
+ that.element_message.style.paddingTop = '0px';
+ that.___messageHidden___ = undefined;
+ }
- if(this.globalSelectionSyncAbility() === false) {
- if(this.debug === true)
- this.log('sync: cannot sync (yet?).');
+ var showMessageIcon = function(icon) {
+ that.element_message.innerHTML = icon;
+ that.element_message.className = 'netdata-message icon';
+ maxMessageFontSize();
+ that.___messageHidden___ = undefined;
+ }
- return;
+ var hideMessage = function() {
+ if(typeof that.___messageHidden___ === 'undefined') {
+ that.___messageHidden___ = true;
+ that.element_message.className = 'netdata-message hidden';
}
}
- $.each(NETDATA.globalSelectionSync.slaves, function(i, st) {
- st.setSelection(t);
- });
- }
-
- // stop syncing all charts to the given time
- chartState.prototype.globalSelectionSyncStop = function() {
- if(NETDATA.globalSelectionSync.slaves.length) {
- if(this.debug === true)
- this.log('sync: cleaning up...');
-
- var self = this;
- $.each(NETDATA.globalSelectionSync.slaves, function(i, st) {
- if(st === self) {
- if(self.debug === true)
- st.log('sync: not adding me to sync stop');
- }
- else {
- if(self.debug === true)
- st.log('sync: removed slave from sync');
-
- st.clearSelection();
- }
- });
+ var showRendering = function() {
+ var icon;
+ if(that.chart !== null) {
+ if(that.chart.chart_type === 'line')
+ icon = '<i class="fa fa-line-chart"></i>';
+ else
+ icon = '<i class="fa fa-area-chart"></i>';
+ }
+ else
+ icon = '<i class="fa fa-area-chart"></i>';
- NETDATA.globalSelectionSync.slaves = [];
- NETDATA.globalSelectionSync.state = null;
+ showMessageIcon(icon + ' netdata');
}
- // since we are the sync master, we should not call this.clearSelection()
- // dygraphs is taking care of visualizing our selection.
- this.selected = false;
- }
-
- chartState.prototype.setSelection = function(t) {
- if(typeof this.library.setSelection === 'function') {
- if(this.library.setSelection(this, t) === true)
- this.selected = true;
- else
- this.selected = false;
+ var showLoading = function() {
+ if(that.chart_created === false) {
+ showMessageIcon('<i class="fa fa-refresh"></i> netdata');
+ return true;
+ }
+ return false;
}
- else this.selected = true;
- if(this.selected === true && this.debug === true)
- this.log('selection set to ' + t.toString());
+ // hide the chart, when it is not visible - called from isVisible()
+ var hideChart = function() {
+ // no chart yet
+ if(that.chart_created === false) return;
- return this.selected;
- }
+ // we should destroy it
+ if(NETDATA.options.current.destroy_on_hide === true) {
+ init();
+ that.___chartIsHidden___ = undefined;
+ return;
+ }
- chartState.prototype.clearSelection = function() {
- if(this.selected === true) {
- if(typeof this.library.clearSelection === 'function') {
- if(this.library.clearSelection(this) === true)
- this.selected = false;
- else
- this.selected = true;
+ // just hide it, if it is not already hidden
+ if(typeof that.___chartIsHidden___ === 'undefined') {
+ showRendering();
+ that.element_chart.style.display = 'none';
+ if(that.element_legend !== null) that.element_legend.style.display = 'none';
+ that.___chartIsHidden___ = true;
+ }
+ }
+
+ // unhide the chart, when it is visible - called from isVisible()
+ var unhideChart = function() {
+ if(typeof that.___chartIsHidden___ !== 'undefined') {
+ that.element_chart.style.display = 'inline-block';
+ if(that.element_legend !== null) that.element_legend.style.display = 'inline-block';
+ hideMessage();
+ that.___chartIsHidden___ = undefined;
+ resizeChart();
}
- else this.selected = false;
-
- if(this.selected === false && this.debug === true)
- this.log('selection cleared');
}
- this.legendReset();
- return this.selected;
- }
-
- // find if a timestamp (ms) is shown in the current chart
- chartState.prototype.timeIsVisible = function(t) {
- if(t >= this.data_after && t <= this.data_before)
- return true;
- return false;
- },
+ // ----------------------------------------------------------------------------------------------------------------
+ // Chart Resize
- chartState.prototype.calculateRowForTime = function(t) {
- if(this.timeIsVisible(t) === false) return -1;
- return Math.floor((t - this.data_after) / this.data_update_every);
- }
+ // resizeChart() - private
+ // to be called just before the chart library to make sure that
+ // a properly sized dom is available
+ var resizeChart = function() {
+ if(that.isVisible() === true && that.tm.last_resized < NETDATA.options.last_resized) {
+ that.tm.last_resized = new Date().getTime();
+ if(that.chart_created === false) return;
- // ----------------------------------------------------------------------------------------------------------------
+ if(that.needsRecreation())
+ init();
- // console logging
- chartState.prototype.log = function(msg) {
- console.log(this.id + ' (' + this.library_name + ' ' + this.uuid + '): ' + msg);
- }
+ else if(typeof that.library.resize === 'function') {
+ that.library.resize(that);
- chartState.prototype.pauseChart = function() {
- if(this.paused === false) {
- if(this.debug === true)
- this.log('paused');
+ if(that.element_legend_childs.nano !== null && that.element_legend_childs.nano_options !== null)
+ $(that.element_legend_childs.nano).nanoScroller();
- this.paused = true;
+ maxMessageFontSize();
+ }
+ }
}
- }
-
- chartState.prototype.unpauseChart = function() {
- if(this.paused) {
- if(this.debug === true)
- this.log('unpaused');
- this.paused = false;
- }
- }
+ // this is the actual chart resize algorithm
+ // it will:
+ // - resize the entire container
+ // - update the internal states
+ // - resize the chart as the div changes height
+ // - update the scrollbar of the legend
+ var resizeChartToHeight = function(h) {
+ // console.log(h);
+ that.element.style.height = h;
- chartState.prototype.resetChart = function() {
- if(NETDATA.globalPanAndZoom.isMaster(this) && this.isVisible())
- NETDATA.globalPanAndZoom.clearMaster();
+ if(that.settings_id !== null)
+ NETDATA.localStorageSet('chart_heights.' + that.settings_id, h);
- this.tm.pan_and_zoom_seq = 0;
+ var now = new Date().getTime();
+ NETDATA.options.last_page_scroll = now;
+ NETDATA.options.last_resized = now;
+ NETDATA.options.auto_refresher_stop_until = now + NETDATA.options.current.stop_updates_while_resizing;
- this.clearSelection();
+ // force a resize
+ that.tm.last_resized = 0;
+ resizeChart();
+ };
- this.setMode('auto');
- this.current.force_update_at = 0;
- this.current.force_before_ms = null;
- this.current.force_after_ms = null;
- this.tm.last_autorefreshed = 0;
- this.paused = false;
- this.selected = false;
- this.enabled = true;
- this.debug = false;
-
- // do not update the chart here
- // or the chart will flip-flop when it is the master
- // of a selection sync and another chart becomes
- // the new master
- if(NETDATA.options.current.sync_pan_and_zoom === false && this.isVisible() === true)
- this.updateChart();
- }
+ this.resizeHandler = function(e) {
+ e.preventDefault();
- chartState.prototype.setMode = function(m) {
- if(this.current) {
- if(this.current.name === m) return;
+ if(typeof this.event_resize === 'undefined'
+ || this.event_resize.chart_original_w === 'undefined'
+ || this.event_resize.chart_original_h === 'undefined')
+ this.event_resize = {
+ chart_original_w: this.element.clientWidth,
+ chart_original_h: this.element.clientHeight,
+ last: 0
+ };
- this[m].requested_before_ms = this.current.requested_before_ms;
- this[m].requested_after_ms = this.current.requested_after_ms;
- }
+ if(e.type === 'touchstart') {
+ this.event_resize.mouse_start_x = e.touches.item(0).pageX;
+ this.event_resize.mouse_start_y = e.touches.item(0).pageY;
+ }
+ else {
+ this.event_resize.mouse_start_x = e.clientX;
+ this.event_resize.mouse_start_y = e.clientY;
+ }
- if(m === 'auto')
- this.current = this.auto;
- else if(m === 'pan')
- this.current = this.pan;
- else if(m === 'zoom')
- this.current = this.zoom;
- else
- this.current = this.auto;
+ this.event_resize.chart_start_w = this.element.clientWidth;
+ this.event_resize.chart_start_h = this.element.clientHeight;
+ this.event_resize.chart_last_w = this.element.clientWidth;
+ this.event_resize.chart_last_h = this.element.clientHeight;
- this.current.force_update_at = 0;
- this.current.force_before_ms = null;
- this.current.force_after_ms = null;
+ var now = new Date().getTime();
+ if(now - this.event_resize.last <= NETDATA.options.current.double_click_speed) {
+ // double click / double tap event
+
+ // the optimal height of the chart
+ // showing the entire legend
+ var optimal = this.event_resize.chart_last_h
+ + this.element_legend_childs.content.scrollHeight
+ - this.element_legend_childs.content.clientHeight;
+
+ // if we are not optimal, be optimal
+ if(this.event_resize.chart_last_h != optimal)
+ resizeChartToHeight(optimal.toString() + 'px');
+
+ // else if we do not have the original height
+ // reset to the original height
+ else if(this.event_resize.chart_last_h != this.event_resize.chart_original_h)
+ resizeChartToHeight(this.event_resize.chart_original_h.toString() + 'px');
+ }
+ else {
+ this.event_resize.last = now;
+
+ // process movement event
+ document.onmousemove =
+ document.ontouchmove =
+ this.element_legend_childs.resize_handler.onmousemove =
+ this.element_legend_childs.resize_handler.ontouchmove =
+ function(e) {
+ var y = null;
+
+ switch(e.type) {
+ case 'mousemove': y = e.clientY; break;
+ case 'touchmove': y = e.touches.item(e.touches - 1).pageY; break;
+ }
- if(this.debug === true)
- this.log('mode set to ' + this.current.name);
- }
+ if(y !== null) {
+ var newH = that.event_resize.chart_start_h + y - that.event_resize.mouse_start_y;
- chartState.prototype.updateChartPanOrZoom = function(after, before) {
- if(before < after) return false;
+ if(newH >= 70 && newH !== that.event_resize.chart_last_h) {
+ resizeChartToHeight(newH.toString() + 'px');
+ that.event_resize.chart_last_h = newH;
+ }
+ }
+ };
+
+ // process end event
+ document.onmouseup =
+ document.ontouchend =
+ this.element_legend_childs.resize_handler.onmouseup =
+ this.element_legend_childs.resize_handler.ontouchend =
+ function(e) {
+ // remove all the hooks
+ document.onmouseup =
+ document.onmousemove =
+ document.ontouchmove =
+ document.ontouchend =
+ that.element_legend_childs.resize_handler.onmousemove =
+ that.element_legend_childs.resize_handler.ontouchmove =
+ that.element_legend_childs.resize_handler.onmouseout =
+ that.element_legend_childs.resize_handler.onmouseup =
+ that.element_legend_childs.resize_handler.ontouchend =
+ null;
+
+ // allow auto-refreshes
+ NETDATA.options.auto_refresher_stop_until = 0;
+ };
+ }
+ }
- var min_duration = Math.round((this.chartWidth() / 30 * this.chart.update_every * 1000));
- if(this.debug === true)
- this.log('requested duration of ' + ((before - after) / 1000).toString() + ' (' + after + ' - ' + before + '), minimum ' + min_duration / 1000);
+ var noDataToShow = function() {
+ this.legendUpdateDOM();
+ that.tm.last_autorefreshed = new Date().getTime();
+ that.data_update_every = 30 * 1000;
+ }
- if((before - after) < min_duration) return false;
+ // ============================================================================================================
+ // PUBLIC FUNCTIONS
- var current_duration = this.data_before - this.data_after;
- var wanted_duration = before - after;
- var tolerance = this.data_update_every * 2;
- var movement = Math.abs(before - this.data_before);
+ this.setMode = function(m) {
+ if(this.current !== null && this.current.name === m) return;
- if(this.debug === true)
- this.log('current duration: ' + current_duration / 1000 + ', wanted duration: ' + wanted_duration / 1000 + ', movement: ' + movement / 1000 + ', tolerance: ' + tolerance / 1000);
+ if(m === 'auto')
+ this.current = this.auto;
+ else if(m === 'pan')
+ this.current = this.pan;
+ else if(m === 'zoom')
+ this.current = this.zoom;
+ else
+ this.current = this.auto;
- if(Math.abs(current_duration - wanted_duration) <= tolerance && movement <= tolerance) {
- if(this.debug === true)
- this.log('IGNORED');
+ this.current.force_update_at = 0;
+ this.current.force_before_ms = null;
+ this.current.force_after_ms = null;
- return false;
+ this.tm.last_mode_switch = new Date().getTime();
}
- if(this.current.name === 'auto') {
- this.setMode('pan');
+ // ----------------------------------------------------------------------------------------------------------------
+ // global selection sync
- if(this.debug === true)
- this.log('updateChartPanOrZoom(): caller did not set proper mode');
+ // prevent to global selection sync for some time
+ this.globalSelectionSyncDelay = function(ms) {
+ if(NETDATA.options.current.sync_selection === false)
+ return;
+
+ if(typeof ms === 'number')
+ NETDATA.globalSelectionSync.dont_sync_before = new Date().getTime() + ms;
+ else
+ NETDATA.globalSelectionSync.dont_sync_before = new Date().getTime() + NETDATA.options.current.sync_selection_delay;
}
- this.current.force_update_at = new Date().getTime() + NETDATA.options.current.pan_and_zoom_delay;
- this.current.force_after_ms = after;
- this.current.force_before_ms = before;
- NETDATA.globalPanAndZoom.setMaster(this, after, before);
- return true;
- }
+ // can we globally apply selection sync?
+ this.globalSelectionSyncAbility = function() {
+ if(NETDATA.options.current.sync_selection === false)
+ return false;
- chartState.prototype.legendFormatValue = function(value) {
- if(value === null || value === 'undefined') return '-';
- if(typeof value !== 'number') return value;
+ if(NETDATA.globalSelectionSync.dont_sync_before > new Date().getTime())
+ return false;
- var abs = Math.abs(value);
- if(abs >= 1) return (Math.round(value * 100) / 100).toLocaleString();
- if(abs >= 0.1) return (Math.round(value * 1000) / 1000).toLocaleString();
- return (Math.round(value * 10000) / 10000).toLocaleString();
- }
+ return true;
+ }
+
+ this.globalSelectionSyncIsMaster = function() {
+ if(NETDATA.globalSelectionSync.state === this)
+ return true;
+ else
+ return false;
+ }
- chartState.prototype.legendSetLabelValue = function(label, value) {
- var series = this.element_legend_childs.series[label];
- if(typeof series === 'undefined') return;
- if(series.value === null && series.user === null) return;
+ // this chart is the master of the global selection sync
+ this.globalSelectionSyncBeMaster = function() {
+ // am I the master?
+ if(this.globalSelectionSyncIsMaster()) {
+ if(this.debug === true)
+ this.log('sync: I am the master already.');
- // if the value has not changed, skip DOM update
- //if(series.last === value) return;
+ return;
+ }
- var s, r;
- if(typeof value === 'number') {
- var v = Math.abs(value);
- s = r = this.legendFormatValue(value);
+ if(NETDATA.globalSelectionSync.state) {
+ if(this.debug === true)
+ this.log('sync: I am not the sync master. Resetting global sync.');
- if(typeof series.last === 'number') {
- if(v > series.last) s += '<i class="fa fa-angle-up" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
- else if(v < series.last) s += '<i class="fa fa-angle-down" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
- else s += '<i class="fa fa-angle-left" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
+ this.globalSelectionSyncStop();
}
- else s += '<i class="fa fa-angle-right" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
- series.last = v;
- }
- else {
- s = r = value;
- series.last = value;
- }
- if(series.value !== null) series.value.innerHTML = s;
- if(series.user !== null) series.user.innerHTML = r;
- }
+ // become the master
+ if(this.debug === true)
+ this.log('sync: becoming sync master.');
- chartState.prototype.legendSetDate = function(ms) {
- if(typeof ms !== 'number') {
- this.legendShowUndefined();
- return;
- }
+ this.selected = true;
+ NETDATA.globalSelectionSync.state = this;
- var d = new Date(ms);
+ // find the all slaves
+ var targets = NETDATA.options.targets;
+ var len = targets.length;
+ while(len--) {
+ st = targets[len];
- if(this.element_legend_childs.title_date)
- this.element_legend_childs.title_date.innerHTML = d.toLocaleDateString();
+ if(st === this) {
+ if(this.debug === true)
+ st.log('sync: not adding me to sync');
+ }
+ else if(st.globalSelectionSyncIsEligible()) {
+ if(this.debug === true)
+ st.log('sync: adding to sync as slave');
- if(this.element_legend_childs.title_time)
- this.element_legend_childs.title_time.innerHTML = d.toLocaleTimeString();
+ st.globalSelectionSyncBeSlave();
+ }
+ }
- if(this.element_legend_childs.title_units)
- this.element_legend_childs.title_units.innerHTML = this.chart.units;
- }
+ // this.globalSelectionSyncDelay(100);
+ }
- chartState.prototype.legendShowUndefined = function() {
- if(this.element_legend_childs.title_date)
- this.element_legend_childs.title_date.innerHTML = ' ';
+ // can the chart participate to the global selection sync as a slave?
+ this.globalSelectionSyncIsEligible = function() {
+ if(this.enabled === true
+ && this.library !== null
+ && typeof this.library.setSelection === 'function'
+ && this.isVisible() === true
+ && this.chart_created === true)
+ return true;
- if(this.element_legend_childs.title_time)
- this.element_legend_childs.title_time.innerHTML = this.chart.name;
+ return false;
+ }
- if(this.element_legend_childs.title_units)
- this.element_legend_childs.title_units.innerHTML = ' ';
+ // this chart becomes a slave of the global selection sync
+ this.globalSelectionSyncBeSlave = function() {
+ if(NETDATA.globalSelectionSync.state !== this)
+ NETDATA.globalSelectionSync.slaves.push(this);
+ }
- if(this.data && this.element_legend_childs.series !== null) {
- var labels = this.data.dimension_names;
- var i = labels.length;
- while(i--) {
- var label = labels[i];
+ // sync all the visible charts to the given time
+ // this is to be called from the chart libraries
+ this.globalSelectionSync = function(t) {
+ if(this.globalSelectionSyncAbility() === false) {
+ if(this.debug === true)
+ this.log('sync: cannot sync (yet?).');
- if(typeof label === 'undefined') continue;
- if(typeof this.element_legend_childs.series[label] === 'undefined') continue;
- this.legendSetLabelValue(label, null);
+ return;
}
- }
- }
- chartState.prototype.legendShowLatestValues = function() {
- if(this.chart === null) return;
- if(this.selected) return;
-
- if(this.data === null || this.element_legend_childs.series === null) {
- this.legendShowUndefined();
- return;
- }
-
- var show_undefined = true;
- if(Math.abs(this.data.last_entry - this.data.before) <= this.data.view_update_every)
- show_undefined = false;
-
- if(show_undefined) {
- this.legendShowUndefined();
- return;
- }
+ if(this.globalSelectionSyncIsMaster() === false) {
+ if(this.debug === true)
+ this.log('sync: trying to be sync master.');
- this.legendSetDate(this.data.before * 1000);
+ this.globalSelectionSyncBeMaster();
- var labels = this.data.dimension_names;
- var i = labels.length;
- while(i--) {
- var label = labels[i];
+ if(this.globalSelectionSyncAbility() === false) {
+ if(this.debug === true)
+ this.log('sync: cannot sync (yet?).');
- if(typeof label === 'undefined') continue;
- if(typeof this.element_legend_childs.series[label] === 'undefined') continue;
+ return;
+ }
+ }
- if(show_undefined)
- this.legendSetLabelValue(label, null);
- else
- this.legendSetLabelValue(label, this.data.view_latest_values[i]);
+ NETDATA.globalSelectionSync.last_t = t;
+ $.each(NETDATA.globalSelectionSync.slaves, function(i, st) {
+ st.setSelection(t);
+ });
}
- }
- chartState.prototype.legendReset = function() {
- this.legendShowLatestValues();
- }
+ // stop syncing all charts to the given time
+ this.globalSelectionSyncStop = function() {
+ if(NETDATA.globalSelectionSync.slaves.length) {
+ if(this.debug === true)
+ this.log('sync: cleaning up...');
- // this should be called just ONCE per dimension per chart
- chartState.prototype._chartDimensionColor = function(label) {
- if(this.colors === null) this.chartColors();
+ $.each(NETDATA.globalSelectionSync.slaves, function(i, st) {
+ if(st === that) {
+ if(that.debug === true)
+ st.log('sync: not adding me to sync stop');
+ }
+ else {
+ if(that.debug === true)
+ st.log('sync: removed slave from sync');
- if(typeof this.colors_assigned[label] === 'undefined') {
- if(this.colors_available.length === 0) {
- for(var i = 0, len = NETDATA.colors.length; i < len ; i++)
- this.colors_available.push(NETDATA.colors[i]);
- }
+ st.clearSelection();
+ }
+ });
- this.colors_assigned[label] = this.colors_available.shift();
+ NETDATA.globalSelectionSync.last_t = 0;
+ NETDATA.globalSelectionSync.slaves = [];
+ NETDATA.globalSelectionSync.state = null;
+ }
- if(this.debug === true)
- this.log('label "' + label + '" got color "' + this.colors_assigned[label]);
- }
- else {
- if(this.debug === true)
- this.log('label "' + label + '" already has color "' + this.colors_assigned[label] + '"');
+ // since we are the sync master, we should not call this.clearSelection()
+ // dygraphs is taking care of visualizing our selection.
+ this.selected = false;
+ this.clearSelection();
}
- this.colors.push(this.colors_assigned[label]);
- return this.colors_assigned[label];
- }
+ this.setSelection = function(t) {
+ if(typeof this.library.setSelection === 'function') {
+ if(this.library.setSelection(this, t) === true)
+ this.selected = true;
+ else
+ this.selected = false;
+ }
+ else this.selected = true;
- chartState.prototype.chartColors = function() {
- if(this.colors !== null) return this.colors;
+ if(this.selected === true && this.debug === true)
+ this.log('selection set to ' + t.toString());
- this.colors = new Array();
- this.colors_available = new Array();
- // this.colors_assigned = {};
+ return this.selected;
+ }
- var c = $(this.element).data('colors');
- if(typeof c !== 'undefined' && c !== null) {
- if(typeof c !== 'string') {
- this.log('invalid color given: ' + c + ' (give a space separated list of colors)');
- }
- else {
- c = c.split(' ');
- for(var i = 0, len = c.length; i < len ; i++)
- this.colors_available.push(c[i]);
+ this.clearSelection = function() {
+ if(this.selected === true) {
+ if(typeof this.library.clearSelection === 'function') {
+ if(this.library.clearSelection(this) === true)
+ this.selected = false;
+ else
+ this.selected = true;
+ }
+ else this.selected = false;
+
+ if(this.selected === false && this.debug === true)
+ this.log('selection cleared');
}
+
+ this.legendReset();
+ return this.selected;
}
- // push all the standard colors too
- for(var i = 0, len = NETDATA.colors.length; i < len ; i++)
- this.colors_available.push(NETDATA.colors[i]);
+ // find if a timestamp (ms) is shown in the current chart
+ this.timeIsVisible = function(t) {
+ if(t >= this.data_after && t <= this.data_before)
+ return true;
+ return false;
+ },
- return this.colors;
- }
+ this.calculateRowForTime = function(t) {
+ if(this.timeIsVisible(t) === false) return -1;
+ return Math.floor((t - this.data_after) / this.data_update_every);
+ }
- chartState.prototype.legendUpdateDOM = function() {
- var needed = false;
+ // ----------------------------------------------------------------------------------------------------------------
- // check that the legend DOM is up to date for the downloaded dimensions
- if(typeof this.element_legend_childs.series !== 'object' || this.element_legend_childs.series === null) {
- // this.log('the legend does not have any series - requesting legend update');
- needed = true;
- }
- else if(this.data === null) {
- // this.log('the chart does not have any data - requesting legend update');
- needed = true;
+ // console logging
+ this.log = function(msg) {
+ console.log(this.id + ' (' + this.library_name + ' ' + this.uuid + '): ' + msg);
}
- else if(typeof this.element_legend_childs.series.labels_key === 'undefined') {
- needed = true;
- }
- else {
- var labels = this.data.dimension_names.toString();
- if(labels !== this.element_legend_childs.series.labels_key) {
- needed = true;
+ this.pauseChart = function() {
+ if(this.paused === false) {
if(this.debug === true)
- this.log('NEW LABELS: "' + labels + '" NOT EQUAL OLD LABELS: "' + this.element_legend_childs.series.labels_key + '"');
+ this.log('paused');
+
+ this.paused = true;
}
}
- if(needed === false) {
- // make sure colors available
- this.chartColors();
-
- // do we have to update the current values?
- // we do this, only when the visible chart is current
- if(Math.abs(this.data.last_entry - this.data.before) <= this.data.view_update_every) {
+ this.unpauseChart = function() {
+ if(this.paused) {
if(this.debug === true)
- this.log('chart in running... updating values on legend...');
+ this.log('unpaused');
- //var labels = this.data.dimension_names;
- //var i = labels.length;
- //while(i--)
- // this.legendSetLabelValue(labels[i], this.data.latest_values[i]);
+ this.paused = false;
}
- return;
}
- if(this.colors === null) {
- // this is the first time we update the chart
- // let's assign colors to all dimensions
- if(this.library.track_colors() === true)
- for(var dim in this.chart.dimensions)
- this._chartDimensionColor(this.chart.dimensions[dim].name);
- }
- // we will re-generate the colors for the chart
- this.colors = null;
- if(this.debug === true)
- this.log('updating Legend DOM');
+ this.resetChart = function() {
+ if(NETDATA.globalPanAndZoom.isMaster(this) && this.isVisible())
+ NETDATA.globalPanAndZoom.clearMaster();
- // mark all dimensions as invalid
- this.dimensions_visibility.invalidateAll();
-
- var self = $(this.element);
- var genLabel = function(state, parent, name, count) {
- var color = state._chartDimensionColor(name);
+ this.tm.pan_and_zoom_seq = 0;
- var user_element = null;
- var user_id = self.data('show-value-of-' + name + '-at') || null;
- if(user_id !== null) {
- user_element = document.getElementById(user_id) || null;
- if(user_element === null)
- me.log('Cannot find element with id: ' + user_id);
- }
+ this.clearSelection();
- state.element_legend_childs.series[name] = {
- name: document.createElement('span'),
- value: document.createElement('span'),
- user: user_element,
- last: null
- };
+ this.setMode('auto');
+ this.current.force_update_at = 0;
+ this.current.force_before_ms = null;
+ this.current.force_after_ms = null;
+ this.tm.last_autorefreshed = 0;
+ this.paused = false;
+ this.selected = false;
+ this.enabled = true;
+ this.debug = false;
- var label = state.element_legend_childs.series[name];
+ // do not update the chart here
+ // or the chart will flip-flop when it is the master
+ // of a selection sync and another chart becomes
+ // the new master
+ if(NETDATA.options.current.sync_pan_and_zoom === false && this.isVisible() === true)
+ this.updateChart();
+ }
- // create the dimension visibility tracking for this label
- var ds = state.dimensions_visibility.dimensionAdd(name, label.name, label.value, color);
+ this.updateChartPanOrZoom = function(after, before) {
+ if(before < after) return false;
- var rgb = NETDATA.colorHex2Rgb(color);
- label.name.innerHTML = '<table class="netdata-legend-name-table-'
- + state.chart.chart_type
- + '" style="background-color: '
- + 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + NETDATA.options.current['color_fill_opacity_' + state.chart.chart_type] + ')'
- + '"><tr class="netdata-legend-name-tr"><td class="netdata-legend-name-td"></td></tr></table>'
+ var min_duration = Math.round((this.chartWidth() / 30 * this.chart.update_every * 1000));
- var text = document.createTextNode(' ' + name);
- label.name.appendChild(text);
+ if(this.debug === true)
+ this.log('requested duration of ' + ((before - after) / 1000).toString() + ' (' + after + ' - ' + before + '), minimum ' + min_duration / 1000);
- if(count > 0)
- parent.appendChild(document.createElement('br'));
+ if((before - after) < min_duration) return false;
- parent.appendChild(label.name);
- parent.appendChild(label.value);
- };
+ var current_duration = this.data_before - this.data_after;
+ var wanted_duration = before - after;
+ var tolerance = this.data_update_every * 2;
+ var movement = Math.abs(before - this.data_before);
- var content = document.createElement('div');
-
- if(this.hasLegend()) {
- this.element_legend_childs = {
- content: content,
- resize_handler: document.createElement('div'),
- title_date: document.createElement('span'),
- title_time: document.createElement('span'),
- title_units: document.createElement('span'),
- nano: document.createElement('div'),
- nano_options: {
- paneClass: 'netdata-legend-series-pane',
- sliderClass: 'netdata-legend-series-slider',
- contentClass: 'netdata-legend-series-content',
- enabledClass: '__enabled',
- flashedClass: '__flashed',
- activeClass: '__active',
- tabIndex: -1,
- alwaysVisible: true,
- sliderMinHeight: 10
- },
- series: {}
- };
+ if(this.debug === true)
+ this.log('current duration: ' + current_duration / 1000 + ', wanted duration: ' + wanted_duration / 1000 + ', movement: ' + movement / 1000 + ', tolerance: ' + tolerance / 1000);
- this.element_legend.innerHTML = '';
+ if(Math.abs(current_duration - wanted_duration) <= tolerance && movement <= tolerance) {
+ if(this.debug === true)
+ this.log('IGNORED');
- this.element_legend_childs.resize_handler.className += " netdata-legend-resize-handler";
- this.element_legend_childs.resize_handler.innerHTML = '<i class="fa fa-chevron-up"></i><i class="fa fa-chevron-down"></i>';
- this.element.appendChild(this.element_legend_childs.resize_handler);
- var self2 = this;
+ return false;
+ }
- // mousedown event
- this.element_legend_childs.resize_handler.onmousedown =
- function(e) {
- self2.resizeHandler(e);
- };
+ if(this.current.name === 'auto') {
+ this.setMode('pan');
- // touchstart event
- this.element_legend_childs.resize_handler.addEventListener('touchstart', function(e) {
- self2.resizeHandler(e);
- }, false);
+ if(this.debug === true)
+ this.log('updateChartPanOrZoom(): caller did not set proper mode');
+ }
- this.element_legend_childs.title_date.className += " netdata-legend-title-date";
- this.element_legend.appendChild(this.element_legend_childs.title_date);
+ this.current.force_update_at = new Date().getTime() + NETDATA.options.current.pan_and_zoom_delay;
+ this.current.force_after_ms = after;
+ this.current.force_before_ms = before;
+ NETDATA.globalPanAndZoom.setMaster(this, after, before);
+ return true;
+ }
- this.element_legend.appendChild(document.createElement('br'));
+ this.legendFormatValue = function(value) {
+ if(value === null || value === 'undefined') return '-';
+ if(typeof value !== 'number') return value;
- this.element_legend_childs.title_time.className += " netdata-legend-title-time";
- this.element_legend.appendChild(this.element_legend_childs.title_time);
+ var abs = Math.abs(value);
+ if(abs >= 1) return (Math.round(value * 100) / 100).toLocaleString();
+ if(abs >= 0.1) return (Math.round(value * 1000) / 1000).toLocaleString();
+ return (Math.round(value * 10000) / 10000).toLocaleString();
+ }
- this.element_legend.appendChild(document.createElement('br'));
+ this.legendSetLabelValue = function(label, value) {
+ var series = this.element_legend_childs.series[label];
+ if(typeof series === 'undefined') return;
+ if(series.value === null && series.user === null) return;
- this.element_legend_childs.title_units.className += " netdata-legend-title-units";
- this.element_legend.appendChild(this.element_legend_childs.title_units);
+ // if the value has not changed, skip DOM update
+ //if(series.last === value) return;
- this.element_legend.appendChild(document.createElement('br'));
+ var s, r;
+ if(typeof value === 'number') {
+ var v = Math.abs(value);
+ s = r = this.legendFormatValue(value);
- this.element_legend_childs.nano.className = 'netdata-legend-series';
- this.element_legend.appendChild(this.element_legend_childs.nano);
+ if(typeof series.last === 'number') {
+ if(v > series.last) s += '<i class="fa fa-angle-up" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
+ else if(v < series.last) s += '<i class="fa fa-angle-down" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
+ else s += '<i class="fa fa-angle-left" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
+ }
+ else s += '<i class="fa fa-angle-right" style="width: 8px; text-align: center; overflow: hidden; vertical-align: middle;"></i>';
+ series.last = v;
+ }
+ else {
+ s = r = value;
+ series.last = value;
+ }
- content.className = 'netdata-legend-series-content';
- this.element_legend_childs.nano.appendChild(content);
- }
- else {
- this.element_legend_childs = {
- content: content,
- resize_handler: null,
- title_date: null,
- title_time: null,
- title_units: null,
- nano: null,
- nano_options: null,
- series: {}
- };
+ if(series.value !== null) series.value.innerHTML = s;
+ if(series.user !== null) series.user.innerHTML = r;
}
- if(this.data) {
- this.element_legend_childs.series.labels_key = this.data.dimension_names.toString();
- if(this.debug === true)
- this.log('labels from data: "' + this.element_legend_childs.series.labels_key + '"');
-
- for(var i = 0, len = this.data.dimension_names.length; i < len ;i++) {
- genLabel(this, content, this.data.dimension_names[i], i);
- }
- }
- else {
- var tmp = new Array();
- for(var dim in this.chart.dimensions) {
- tmp.push(this.chart.dimensions[dim].name);
- genLabel(this, content, this.chart.dimensions[dim].name, i);
+ this.legendSetDate = function(ms) {
+ if(typeof ms !== 'number') {
+ this.legendShowUndefined();
+ return;
}
- this.element_legend_childs.series.labels_key = tmp.toString();
- if(this.debug === true)
- this.log('labels from chart: "' + this.element_legend_childs.series.labels_key + '"');
- }
- // create a hidden div to be used for hidding
- // the original legend of the chart library
- var el = document.createElement('div');
- this.element_legend.appendChild(el);
- el.style.display = 'none';
+ var d = new Date(ms);
- this.element_legend_childs.hidden = document.createElement('div');
- el.appendChild(this.element_legend_childs.hidden);
+ if(this.element_legend_childs.title_date)
+ this.element_legend_childs.title_date.innerHTML = d.toLocaleDateString();
- if(this.element_legend_childs.nano !== null && this.element_legend_childs.nano_options !== null)
- $(this.element_legend_childs.nano).nanoScroller(this.element_legend_childs.nano_options);
+ if(this.element_legend_childs.title_time)
+ this.element_legend_childs.title_time.innerHTML = d.toLocaleTimeString();
- this.legendShowLatestValues();
- }
+ if(this.element_legend_childs.title_units)
+ this.element_legend_childs.title_units.innerHTML = this.chart.units;
+ }
- chartState.prototype.createChartDOM = function() {
- if(this.debug === true)
- this.log('creating DOM');
-
- this.element_chart_id = this.library_name + '-' + this.uuid + '-chart';
- this.element_chart = document.createElement('div');
- this.element_chart.className += ' netdata-chart' + (this.hasLegend()?'-with-legend-right':'').toString();
- this.element_chart.className += ' netdata-' + this.library_name + '-chart' + (this.hasLegend()?'-with-legend-right':'').toString();
- this.element_chart.id = this.element_chart_id;
- $(this.element_chart).data('netdata-state-object', this);
- this.element.appendChild(this.element_chart);
-
- this.element_legend_id = this.library_name + '-' + this.uuid + '-legend';
- this.element_legend = document.createElement('div');
- this.element_legend.className += ' netdata-chart-legend';
- this.element_legend.className += ' netdata-' + this.library_name + '-legend';
- this.element_legend.id = this.element_legend_id;
- $(this.element_legend).data('netdata-state-object', this);
-
- if(this.hasLegend() === false)
- this.element_legend.style.display = 'none';
- else
- this.element.appendChild(this.element_legend);
+ this.legendShowUndefined = function() {
+ if(this.element_legend_childs.title_date)
+ this.element_legend_childs.title_date.innerHTML = ' ';
- this.element_legend_childs.series = null;
- this.legendUpdateDOM();
+ if(this.element_legend_childs.title_time)
+ this.element_legend_childs.title_time.innerHTML = this.chart.name;
- // in case the user has an active global selection sync in place
- // reset it
- this.globalSelectionSyncStop();
- this.dom_created = true;
- }
+ if(this.element_legend_childs.title_units)
+ this.element_legend_childs.title_units.innerHTML = ' ';
- chartState.prototype.hasLegend = function() {
- if(typeof this.___hasLegendCache___ !== 'undefined')
- return this.___hasLegendCache___;
+ if(this.data && this.element_legend_childs.series !== null) {
+ var labels = this.data.dimension_names;
+ var i = labels.length;
+ while(i--) {
+ var label = labels[i];
- var leg = false;
- if(this.library && this.library.legend(this) === 'right-side') {
- var legend = $(this.element).data('legend') || 'yes';
- if(legend === 'yes') leg = true;
+ if(typeof label === 'undefined') continue;
+ if(typeof this.element_legend_childs.series[label] === 'undefined') continue;
+ this.legendSetLabelValue(label, null);
+ }
+ }
}
- this.___hasLegendCache___ = leg;
- return leg;
- }
+ this.legendShowLatestValues = function() {
+ if(this.chart === null) return;
+ if(this.selected) return;
- chartState.prototype.legendWidth = function() {
- return (this.hasLegend())?140:0;
- }
+ if(this.data === null || this.element_legend_childs.series === null) {
+ this.legendShowUndefined();
+ return;
+ }
- chartState.prototype.legendHeight = function() {
- return $(this.element).height();
- }
+ var show_undefined = true;
+ if(Math.abs(this.data.last_entry - this.data.before) <= this.data.view_update_every)
+ show_undefined = false;
- chartState.prototype.chartWidth = function() {
- return $(this.element).width() - this.legendWidth();
- }
+ if(show_undefined) {
+ this.legendShowUndefined();
+ return;
+ }
- chartState.prototype.chartHeight = function() {
- return $(this.element).height();
- }
+ this.legendSetDate(this.data.before * 1000);
- chartState.prototype.chartPixelsPerPoint = function() {
- // force an options provided detail
- var px = this.pixels_per_point;
+ var labels = this.data.dimension_names;
+ var i = labels.length;
+ while(i--) {
+ var label = labels[i];
- if(this.library && px < this.library.pixels_per_point(this))
- px = this.library.pixels_per_point(this);
+ if(typeof label === 'undefined') continue;
+ if(typeof this.element_legend_childs.series[label] === 'undefined') continue;
- if(px < NETDATA.options.current.pixels_per_point)
- px = NETDATA.options.current.pixels_per_point;
+ if(show_undefined)
+ this.legendSetLabelValue(label, null);
+ else
+ this.legendSetLabelValue(label, this.data.view_latest_values[i]);
+ }
+ }
- return px;
- }
+ this.legendReset = function() {
+ this.legendShowLatestValues();
+ }
- chartState.prototype.needsRecreation = function() {
- return (
- this.dom_created === true
- && this.chart_created === true
- && this.library
- && this.library.autoresize() === false
- && this.tm.last_resized < NETDATA.options.last_resized
- );
- }
+ // this should be called just ONCE per dimension per chart
+ this._chartDimensionColor = function(label) {
+ if(this.colors === null) this.chartColors();
- chartState.prototype.resizeChart = function() {
- if(this.needsRecreation()) {
- if(this.debug === true)
- this.log('forcing re-generation due to window resize.');
+ if(typeof this.colors_assigned[label] === 'undefined') {
+ if(this.colors_available.length === 0) {
+ for(var i = 0, len = NETDATA.colors.length; i < len ; i++)
+ this.colors_available.push(NETDATA.colors[i]);
+ }
- this.destroyChart();
- }
+ this.colors_assigned[label] = this.colors_available.shift();
- this.tm.last_resized = new Date().getTime();
- }
+ if(this.debug === true)
+ this.log('label "' + label + '" got color "' + this.colors_assigned[label]);
+ }
+ else {
+ if(this.debug === true)
+ this.log('label "' + label + '" already has color "' + this.colors_assigned[label] + '"');
+ }
- chartState.prototype.chartURL = function() {
- var before;
- var after;
- if(NETDATA.globalPanAndZoom.isActive()) {
- after = Math.round(NETDATA.globalPanAndZoom.force_after_ms / 1000);
- before = Math.round(NETDATA.globalPanAndZoom.force_before_ms / 1000);
- this.tm.pan_and_zoom_seq = NETDATA.globalPanAndZoom.seq;
+ this.colors.push(this.colors_assigned[label]);
+ return this.colors_assigned[label];
}
- else {
- before = this.current.force_before_ms !== null ? Math.round(this.current.force_before_ms / 1000) : this.before;
- after = this.current.force_after_ms !== null ? Math.round(this.current.force_after_ms / 1000) : this.after;
- this.tm.pan_and_zoom_seq = 0;
+
+ this.chartColors = function() {
+ if(this.colors !== null) return this.colors;
+
+ this.colors = new Array();
+ this.colors_available = new Array();
+ // this.colors_assigned = {};
+
+ var c = $(this.element).data('colors');
+ if(typeof c !== 'undefined' && c !== null) {
+ if(typeof c !== 'string') {
+ this.log('invalid color given: ' + c + ' (give a space separated list of colors)');
+ }
+ else {
+ c = c.split(' ');
+ for(var i = 0, len = c.length; i < len ; i++)
+ this.colors_available.push(c[i]);
+ }
+ }
+
+ // push all the standard colors too
+ for(var i = 0, len = NETDATA.colors.length; i < len ; i++)
+ this.colors_available.push(NETDATA.colors[i]);
+
+ return this.colors;
}
- this.current.requested_after_ms = after * 1000;
- this.current.requested_before_ms = before * 1000;
+ this.legendUpdateDOM = function() {
+ var needed = false;
- this.data_points = this.points || Math.round(this.chartWidth() / this.chartPixelsPerPoint());
+ // check that the legend DOM is up to date for the downloaded dimensions
+ if(typeof this.element_legend_childs.series !== 'object' || this.element_legend_childs.series === null) {
+ // this.log('the legend does not have any series - requesting legend update');
+ needed = true;
+ }
+ else if(this.data === null) {
+ // this.log('the chart does not have any data - requesting legend update');
+ needed = true;
+ }
+ else if(typeof this.element_legend_childs.series.labels_key === 'undefined') {
+ needed = true;
+ }
+ else {
+ var labels = this.data.dimension_names.toString();
+ if(labels !== this.element_legend_childs.series.labels_key) {
+ needed = true;
- // build the data URL
- this.data_url = this.chart.data_url;
- this.data_url += "&format=" + this.library.format();
- this.data_url += "&points=" + this.data_points.toString();
- this.data_url += "&group=" + this.method;
- this.data_url += "&options=" + this.library.options();
- this.data_url += '|jsonwrap';
+ if(this.debug === true)
+ this.log('NEW LABELS: "' + labels + '" NOT EQUAL OLD LABELS: "' + this.element_legend_childs.series.labels_key + '"');
+ }
+ }
- if(NETDATA.options.current.eliminate_zero_dimensions === true)
- this.data_url += '|nonzero';
+ if(needed === false) {
+ // make sure colors available
+ this.chartColors();
- if(after)
- this.data_url += "&after=" + after.toString();
+ // do we have to update the current values?
+ // we do this, only when the visible chart is current
+ if(Math.abs(this.data.last_entry - this.data.before) <= this.data.view_update_every) {
+ if(this.debug === true)
+ this.log('chart in running... updating values on legend...');
- if(before)
- this.data_url += "&before=" + before.toString();
+ //var labels = this.data.dimension_names;
+ //var i = labels.length;
+ //while(i--)
+ // this.legendSetLabelValue(labels[i], this.data.latest_values[i]);
+ }
+ return;
+ }
+ if(this.colors === null) {
+ // this is the first time we update the chart
+ // let's assign colors to all dimensions
+ if(this.library.track_colors() === true)
+ for(var dim in this.chart.dimensions)
+ this._chartDimensionColor(this.chart.dimensions[dim].name);
+ }
+ // we will re-generate the colors for the chart
+ this.colors = null;
- if(this.dimensions)
- this.data_url += "&dimensions=" + this.dimensions;
+ if(this.debug === true)
+ this.log('updating Legend DOM');
- if(NETDATA.options.debug.chart_data_url === true || this.debug === true)
- this.log('chartURL(): ' + this.data_url + ' WxH:' + this.chartWidth() + 'x' + this.chartHeight() + ' points: ' + this.data_points + ' library: ' + this.library_name);
- }
+ // mark all dimensions as invalid
+ this.dimensions_visibility.invalidateAll();
- chartState.prototype.redrawChart = function() {
- if(this.data !== null)
- this.updateChartWithData(this.data);
- }
+ var genLabel = function(state, parent, name, count) {
+ var color = state._chartDimensionColor(name);
- chartState.prototype.updateChartWithData = function(data) {
- if(this.debug === true)
- this.log('got data from netdata server');
+ var user_element = null;
+ var user_id = self.data('show-value-of-' + name + '-at') || null;
+ if(user_id !== null) {
+ user_element = document.getElementById(user_id) || null;
+ if(user_element === null)
+ me.log('Cannot find element with id: ' + user_id);
+ }
- this.data = data;
- this.updates_counter++;
+ state.element_legend_childs.series[name] = {
+ name: document.createElement('span'),
+ value: document.createElement('span'),
+ user: user_element,
+ last: null
+ };
- var started = new Date().getTime();
- this.tm.last_updated = started;
+ var label = state.element_legend_childs.series[name];
- // if the result is JSON, find the latest update-every
- if(typeof data === 'object') {
- if(typeof data.view_update_every !== 'undefined')
- this.data_update_every = data.view_update_every * 1000;
+ // create the dimension visibility tracking for this label
+ var ds = state.dimensions_visibility.dimensionAdd(name, label.name, label.value, color);
- if(typeof data.after !== 'undefined')
- this.data_after = data.after * 1000;
+ var rgb = NETDATA.colorHex2Rgb(color);
+ label.name.innerHTML = '<table class="netdata-legend-name-table-'
+ + state.chart.chart_type
+ + '" style="background-color: '
+ + 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + NETDATA.options.current['color_fill_opacity_' + state.chart.chart_type] + ')'
+ + '"><tr class="netdata-legend-name-tr"><td class="netdata-legend-name-td"></td></tr></table>'
- if(typeof data.before !== 'undefined')
- this.data_before = data.before * 1000;
+ var text = document.createTextNode(' ' + name);
+ label.name.appendChild(text);
- if(typeof data.first_entry !== 'undefined')
- this.netdata_first = data.first_entry * 1000;
+ if(count > 0)
+ parent.appendChild(document.createElement('br'));
- if(typeof data.last_entry !== 'undefined')
- this.netdata_last = data.last_entry * 1000;
+ parent.appendChild(label.name);
+ parent.appendChild(label.value);
+ };
- if(typeof data.points !== 'undefined')
- this.data_points = data.points;
+ var content = document.createElement('div');
+
+ if(this.hasLegend()) {
+ this.element_legend_childs = {
+ content: content,
+ resize_handler: document.createElement('div'),
+ title_date: document.createElement('span'),
+ title_time: document.createElement('span'),
+ title_units: document.createElement('span'),
+ nano: document.createElement('div'),
+ nano_options: {
+ paneClass: 'netdata-legend-series-pane',
+ sliderClass: 'netdata-legend-series-slider',
+ contentClass: 'netdata-legend-series-content',
+ enabledClass: '__enabled',
+ flashedClass: '__flashed',
+ activeClass: '__active',
+ tabIndex: -1,
+ alwaysVisible: true,
+ sliderMinHeight: 10
+ },
+ series: {}
+ };
- data.state = this;
- }
+ this.element_legend.innerHTML = '';
- if(this.debug === true) {
- this.log('UPDATE No ' + this.updates_counter + ' COMPLETED');
+ this.element_legend_childs.resize_handler.className += " netdata-legend-resize-handler";
+ this.element_legend_childs.resize_handler.innerHTML = '<i class="fa fa-chevron-up"></i><i class="fa fa-chevron-down"></i>';
+ this.element.appendChild(this.element_legend_childs.resize_handler);
- if(this.current.force_after_ms)
- this.log('STATUS: forced : ' + (this.current.force_after_ms / 1000).toString() + ' - ' + (this.current.force_before_ms / 1000).toString());
- else
- this.log('STATUS: forced: unset');
+ // mousedown event
+ this.element_legend_childs.resize_handler.onmousedown =
+ function(e) {
+ that.resizeHandler(e);
+ };
- this.log('STATUS: requested: ' + (this.current.requested_after_ms / 1000).toString() + ' - ' + (this.current.requested_before_ms / 1000).toString());
- this.log('STATUS: rendered : ' + (this.data_after / 1000).toString() + ' - ' + (this.data_before / 1000).toString());
- this.log('STATUS: points : ' + (this.data_points).toString());
- }
+ // touchstart event
+ this.element_legend_childs.resize_handler.addEventListener('touchstart', function(e) {
+ that.resizeHandler(e);
+ }, false);
- if(this.data_points === 0) {
- this.noData();
- return;
- }
+ this.element_legend_childs.title_date.className += " netdata-legend-title-date";
+ this.element_legend.appendChild(this.element_legend_childs.title_date);
- // this may force the chart to be re-created
- this.resizeChart();
+ this.element_legend.appendChild(document.createElement('br'));
- if(this.updates_since_last_creation >= this.library.max_updates_to_recreate()) {
- if(this.debug === true)
- this.log('max updates of ' + this.updates_since_last_creation.toString() + ' reached. Forcing re-generation.');
+ this.element_legend_childs.title_time.className += " netdata-legend-title-time";
+ this.element_legend.appendChild(this.element_legend_childs.title_time);
- this.chart_created = false;
- }
+ this.element_legend.appendChild(document.createElement('br'));
- if(this.chart_created === true
- && this.dom_created === true
- && typeof this.library.update === 'function') {
+ this.element_legend_childs.title_units.className += " netdata-legend-title-units";
+ this.element_legend.appendChild(this.element_legend_childs.title_units);
- if(this.debug === true)
- this.log('updating chart...');
+ this.element_legend.appendChild(document.createElement('br'));
- // check and update the legend
- this.legendUpdateDOM();
+ this.element_legend_childs.nano.className = 'netdata-legend-series';
+ this.element_legend.appendChild(this.element_legend_childs.nano);
- this.updates_since_last_creation++;
- if(NETDATA.options.debug.chart_errors === true) {
- this.library.update(this, data);
+ content.className = 'netdata-legend-series-content';
+ this.element_legend_childs.nano.appendChild(content);
}
else {
- try {
- this.library.update(this, data);
- }
- catch(err) {
- this.error('chart failed to be updated as ' + this.library_name);
- }
+ this.element_legend_childs = {
+ content: content,
+ resize_handler: null,
+ title_date: null,
+ title_time: null,
+ title_units: null,
+ nano: null,
+ nano_options: null,
+ series: {}
+ };
}
- }
- else {
- if(this.debug === true)
- this.log('creating chart...');
- this.createChartDOM();
- this.updates_since_last_creation = 0;
+ if(this.data) {
+ this.element_legend_childs.series.labels_key = this.data.dimension_names.toString();
+ if(this.debug === true)
+ this.log('labels from data: "' + this.element_legend_childs.series.labels_key + '"');
- if(NETDATA.options.debug.chart_errors === true) {
- this.library.create(this, data);
- this.chart_created = true;
+ for(var i = 0, len = this.data.dimension_names.length; i < len ;i++) {
+ genLabel(this, content, this.data.dimension_names[i], i);
+ }
}
else {
- try {
- this.library.create(this, data);
- this.chart_created = true;
- }
- catch(err) {
- this.error('chart failed to be created as ' + this.library_name);
+ var tmp = new Array();
+ for(var dim in this.chart.dimensions) {
+ tmp.push(this.chart.dimensions[dim].name);
+ genLabel(this, content, this.chart.dimensions[dim].name, i);
}
+ this.element_legend_childs.series.labels_key = tmp.toString();
+ if(this.debug === true)
+ this.log('labels from chart: "' + this.element_legend_childs.series.labels_key + '"');
}
- }
- // this.legendShowLatestValues();
-
- // update the performance counters
- var now = new Date().getTime();
-
- // don't update last_autorefreshed if this chart is
- // forced to be updated with global PanAndZoom
- if(NETDATA.globalPanAndZoom.isActive())
- this.tm.last_autorefreshed = 0;
- else {
- if(NETDATA.options.current.parallel_refresher === true && NETDATA.options.current.concurrent_refreshes)
- this.tm.last_autorefreshed = Math.round(now / this.data_update_every) * this.data_update_every;
- else
- this.tm.last_autorefreshed = now;
- }
- this.refresh_dt_ms = now - started;
- NETDATA.options.auto_refresher_fast_weight += this.refresh_dt_ms;
+ // create a hidden div to be used for hidding
+ // the original legend of the chart library
+ var el = document.createElement('div');
+ if(this.element_legend !== null)
+ this.element_legend.appendChild(el);
+ el.style.display = 'none';
- if(this.refresh_dt_element)
- this.refresh_dt_element.innerHTML = this.refresh_dt_ms.toString();
- }
+ this.element_legend_childs.hidden = document.createElement('div');
+ el.appendChild(this.element_legend_childs.hidden);
- chartState.prototype.updateChart = function(callback) {
- // due to late initialization of charts and libraries
- // we need to check this too
- if(this.enabled === false) {
- if(this.debug === true)
- this.log('I am not enabled');
+ if(this.element_legend_childs.nano !== null && this.element_legend_childs.nano_options !== null)
+ $(this.element_legend_childs.nano).nanoScroller(this.element_legend_childs.nano_options);
- if(typeof callback === 'function') callback();
- return false;
+ this.legendShowLatestValues();
}
- if(this.chart === null) {
- var self = this;
- this.getChart(function() { self.updateChart(callback); });
- return;
- }
+ this.hasLegend = function() {
+ if(typeof this.___hasLegendCache___ !== 'undefined')
+ return this.___hasLegendCache___;
- if(this.library.initialized === false) {
- if(this.library.enabled === true) {
- var self = this;
- this.library.initialize(function() { self.updateChart(callback); });
- return;
+ var leg = false;
+ if(this.library && this.library.legend(this) === 'right-side') {
+ var legend = $(this.element).data('legend') || 'yes';
+ if(legend === 'yes') leg = true;
}
- else {
- this.error('chart library "' + this.library_name + '" is not available.');
- if(typeof callback === 'function') callback();
- return false;
- }
- }
-
- this.clearSelection();
- this.chartURL();
- this.showLoading();
-
- if(this.debug === true)
- this.log('updating from ' + this.data_url);
-
- var self = this;
- this.xhr = $.ajax( {
- url: this.data_url,
- crossDomain: NETDATA.options.crossDomainAjax,
- cache: false,
- async: true
- })
- .success(function(data) {
- self.hideLoading();
- if(self.debug === true)
- self.log('data received. updating chart.');
-
- self.updateChartWithData(data);
- })
- .fail(function() {
- self.hideLoading();
- self.error('data download failed for url: ' + self.data_url);
- })
- .always(function() {
- self.hideLoading();
- if(typeof callback === 'function') callback();
- });
- }
-
- chartState.prototype.destroyChart = function() {
- if(this.debug === true)
- this.log('destroying chart');
-
- if(this.element_message !== null) {
- this.element_message.innerHTML = '';
- this.element_message = null;
+ this.___hasLegendCache___ = leg;
+ return leg;
}
- if(this.element_loading !== null) {
- this.element_loading.innerHTML = '';
- this.element_loading = null;
+ this.legendWidth = function() {
+ return (this.hasLegend())?140:0;
}
- if(this.element_legend !== null) {
- this.element_legend.innerHTML = '';
- this.element_legend = null;
+ this.legendHeight = function() {
+ return $(this.element).height();
}
- if(this.element_chart !== null) {
- this.element_chart.innerHTML = '';
- this.element_chart = null;
+ this.chartWidth = function() {
+ return $(this.element).width() - this.legendWidth();
}
- this.element_legend_childs = {
- hidden: null,
- title_date: null,
- title_time: null,
- title_units: null,
- nano: null,
- nano_options: null,
- series: null
- };
-
- this.element.innerHTML = '';
- this.refresh_dt_element = null;
-
- this.dom_created = false;
- this.chart_created = false;
- this.paused = false;
- this.selected = false;
- this.updates_counter = 0;
- this.updates_since_last_creation = 0;
- this.tm.pan_and_zoom_seq = 0;
- this.tm.last_resized = 0;
- this.tm.last_visible_check = 0;
- this.tm.last_hidden = 0;
- this.tm.last_unhidden = 0;
- this.tm.last_autorefreshed = 0;
-
- this.data = null;
- this.data_points = 0;
- this.data_after = 0;
- this.data_before = 0;
- this.data_update_every = 0;
- this.netdata_first = 0;
- this.netdata_last = 0;
- if(this.current !== null) {
- this.current.force_update_at = 0;
- this.current.force_after_ms = null;
- this.current.force_before_ms = null;
- this.current.requested_after_ms = null;
- this.current.requested_before_ms = null;
+ this.chartHeight = function() {
+ return $(this.element).height();
}
- this.init();
- }
- chartState.prototype.unhideChart = function() {
- if(typeof this.___isHidden___ !== 'undefined' && this.enabled === true) {
- if(this.debug === true)
- this.log('unhiding chart');
+ this.chartPixelsPerPoint = function() {
+ // force an options provided detail
+ var px = this.pixels_per_point;
- this.element_message.style.display = 'none';
- if(this.element_chart !== null) this.element_chart.style.display = 'inline-block';
- if(this.element_legend !== null) this.element_legend.style.display = 'inline-block';
- if(this.element_loading !== null) this.element_loading.style.display = 'none';
- this.___isHidden___ = undefined;
- this.element_message.innerHTML = 'chart ' + this.id + ' is visible now';
+ if(this.library && px < this.library.pixels_per_point(this))
+ px = this.library.pixels_per_point(this);
- // refresh the scrolbar
- if(this.element_legend_childs.nano !== null && this.element_legend_childs.nano_options !== null)
- $(this.element_legend_childs.nano).nanoScroller(this.element_legend_childs.nano_options);
+ if(px < NETDATA.options.current.pixels_per_point)
+ px = NETDATA.options.current.pixels_per_point;
- this.tm.last_unhidden = new Date().getTime();
+ return px;
}
- }
- chartState.prototype.hideChart = function() {
- if(typeof this.___isHidden___ === 'undefined' && this.enabled === true) {
- if(NETDATA.options.current.destroy_on_hide === true)
- this.destroyChart();
-
- if(this.debug === true)
- this.log('hiding chart');
-
- this.element_message.style.display = 'inline-block';
- if(this.element_chart !== null) this.element_chart.style.display = 'none';
- if(this.element_legend !== null) this.element_legend.style.display = 'none';
- if(this.element_loading !== null) this.element_loading.style.display = 'none';
- this.___isHidden___ = true;
- this.___showsLoading___ = undefined;
- this.element_message.innerHTML = 'chart ' + this.id + ' is hidden to speed up the browser';
- this.tm.last_hidden = new Date().getTime();
+ this.needsRecreation = function() {
+ return (
+ this.chart_created === true
+ && this.library
+ && this.library.autoresize() === false
+ && this.tm.last_resized < NETDATA.options.last_resized
+ );
}
- }
- chartState.prototype.hideLoading = function() {
- if(typeof this.___showsLoading___ !== 'undefined' && this.enabled === true) {
- if(this.debug === true)
- this.log('hide loading...');
-
- this.element_message.style.display = 'none';
- if(this.element_chart !== null) this.element_chart.style.display = 'inline-block';
- if(this.element_legend !== null) this.element_legend.style.display = 'inline-block';
- if(this.element_loading !== null) this.element_loading.style.display = 'none';
- this.___showsLoading___ = undefined;
- this.element_loading.innerHTML = 'chart ' + this.id + ' finished loading!';
- this.tm.last_unhidden = new Date().getTime();
- }
- }
+ this.chartURL = function() {
+ var before;
+ var after;
+ if(NETDATA.globalPanAndZoom.isActive()) {
+ after = Math.round(NETDATA.globalPanAndZoom.force_after_ms / 1000);
+ before = Math.round(NETDATA.globalPanAndZoom.force_before_ms / 1000);
+ this.tm.pan_and_zoom_seq = NETDATA.globalPanAndZoom.seq;
+ }
+ else {
+ before = this.current.force_before_ms !== null ? Math.round(this.current.force_before_ms / 1000) : this.before;
+ after = this.current.force_after_ms !== null ? Math.round(this.current.force_after_ms / 1000) : this.after;
+ this.tm.pan_and_zoom_seq = 0;
+ }
- chartState.prototype.showLoading = function() {
- if(typeof this.___showsLoading___ === 'undefined' && this.chart_created === false && this.enabled === true) {
- if(this.debug === true)
- this.log('show loading...');
+ this.requested_after = after * 1000;
+ this.requested_before = before * 1000;
- this.element_message.style.display = 'none';
- if(this.element_chart !== null) this.element_chart.style.display = 'none';
- if(this.element_legend !== null) this.element_legend.style.display = 'none';
- if(this.element_loading !== null) this.element_loading.style.display = 'inline-block';
- this.___showsLoading___ = true;
- this.___isHidden___ = undefined;
- this.element_loading.innerHTML = 'chart ' + this.id + ' is loading...';
- this.tm.last_hidden = new Date().getTime();
- }
- }
+ this.data_points = this.points || Math.round(this.chartWidth() / this.chartPixelsPerPoint());
- chartState.prototype.isVisible = function() {
- // this.log('last_visible_check: ' + this.tm.last_visible_check + ', last_page_scroll: ' + NETDATA.options.last_page_scroll);
+ // build the data URL
+ this.data_url = this.chart.data_url;
+ this.data_url += "&format=" + this.library.format();
+ this.data_url += "&points=" + this.data_points.toString();
+ this.data_url += "&group=" + this.method;
+ this.data_url += "&options=" + this.library.options();
+ this.data_url += '|jsonwrap';
- // caching - we do not evaluate the charts visibility
- // if the page has not been scrolled since the last check
- if(this.tm.last_visible_check > NETDATA.options.last_page_scroll) {
- if(this.debug === true)
- this.log('isVisible: ' + this.___isVisible___);
+ if(NETDATA.options.current.eliminate_zero_dimensions === true)
+ this.data_url += '|nonzero';
- return this.___isVisible___;
- }
+ if(after)
+ this.data_url += "&after=" + after.toString();
- this.tm.last_visible_check = new Date().getTime();
+ if(before)
+ this.data_url += "&before=" + before.toString();
- var wh = window.innerHeight;
- var x = this.element.getBoundingClientRect();
- var ret = 0;
- var tolerance = 0;
+ if(this.dimensions)
+ this.data_url += "&dimensions=" + this.dimensions;
- if(x.top < 0 && -x.top > x.height) {
- // the chart is entirely above
- ret = -x.top - x.height;
+ if(NETDATA.options.debug.chart_data_url === true || this.debug === true)
+ this.log('chartURL(): ' + this.data_url + ' WxH:' + this.chartWidth() + 'x' + this.chartHeight() + ' points: ' + this.data_points + ' library: ' + this.library_name);
}
- else if(x.top > wh) {
- // the chart is entirely below
- ret = x.top - wh;
+
+ this.redrawChart = function() {
+ if(this.data !== null)
+ this.updateChartWithData(this.data);
}
- if(ret > tolerance) {
- // the chart is too far
- this.___isVisible___ = false;
- if(this.chart_created === true) this.hideChart();
-
+ this.updateChartWithData = function(data) {
if(this.debug === true)
- this.log('isVisible: ' + this.___isVisible___);
+ this.log('got data from netdata server');
- return this.___isVisible___;
- }
- else {
- // the chart is inside or very close
- this.___isVisible___ = true;
- this.unhideChart();
-
- if(this.debug === true)
- this.log('isVisible: ' + this.___isVisible___);
+ // this may force the chart to be re-created
+ resizeChart();
- return this.___isVisible___;
- }
- }
+ this.data = data;
+ this.updates_counter++;
- chartState.prototype.isAutoRefreshed = function() {
- return (this.current.autorefresh);
- }
+ var started = new Date().getTime();
- chartState.prototype.canBeAutoRefreshed = function() {
- now = new Date().getTime();
+ // if the result is JSON, find the latest update-every
+ if(typeof data === 'object') {
+ if(typeof data.view_update_every !== 'undefined')
+ this.data_update_every = data.view_update_every * 1000;
- if(this.enabled === false) {
- if(this.debug === true)
- this.log('I am not enabled');
+ if(typeof data.after !== 'undefined')
+ this.data_after = data.after * 1000;
- return false;
- }
+ if(typeof data.before !== 'undefined')
+ this.data_before = data.before * 1000;
- if(this.library === null || this.library.enabled === false) {
- this.error('charting library "' + this.library_name + '" is not available');
- if(this.debug === true)
- this.log('My chart library ' + this.library_name + ' is not available');
+ if(typeof data.first_entry !== 'undefined')
+ this.netdata_first = data.first_entry * 1000;
- return false;
- }
+ if(typeof data.last_entry !== 'undefined')
+ this.netdata_last = data.last_entry * 1000;
- if(this.isVisible() === false) {
- if(NETDATA.options.debug.visibility === true || this.debug === true)
- this.log('I am not visible');
+ if(typeof data.points !== 'undefined')
+ this.data_points = data.points;
- return false;
- }
-
- if(this.current.force_update_at !== 0 && this.current.force_update_at < now) {
- if(this.debug === true)
- this.log('timed force update detected - allowing this update');
+ data.state = this;
+ }
- this.current.force_update_at = 0;
- return true;
- }
+ if(this.debug === true) {
+ this.log('UPDATE No ' + this.updates_counter + ' COMPLETED');
+
+ if(this.current.force_after_ms)
+ this.log('STATUS: forced : ' + (this.current.force_after_ms / 1000).toString() + ' - ' + (this.current.force_before_ms / 1000).toString());
+ else
+ this.log('STATUS: forced: unset');
- if(this.isAutoRefreshed() === true) {
- // allow the first update, even if the page is not visible
- if(this.updates_counter && NETDATA.options.page_is_visible === false) {
- if(NETDATA.options.debug.focus === true || this.debug === true)
- this.log('canBeAutoRefreshed(): page does not have focus');
+ this.log('STATUS: requested: ' + (this.requested_after / 1000).toString() + ' - ' + (this.requested_before / 1000).toString());
+ this.log('STATUS: rendered : ' + (this.data_after / 1000).toString() + ' - ' + (this.data_before / 1000).toString());
+ this.log('STATUS: points : ' + (this.data_points).toString());
+ }
- return false;
+ if(this.data_points === 0) {
+ noDataToShow();
+ return;
}
- if(this.needsRecreation() === true) {
+ if(this.updates_since_last_creation >= this.library.max_updates_to_recreate()) {
if(this.debug === true)
- this.log('canBeAutoRefreshed(): needs re-creation.');
+ this.log('max updates of ' + this.updates_since_last_creation.toString() + ' reached. Forcing re-generation.');
- return true;
+ this.chart_created = false;
}
- // options valid only for autoRefresh()
- if(NETDATA.options.auto_refresher_stop_until === 0 || NETDATA.options.auto_refresher_stop_until < now) {
- if(NETDATA.globalPanAndZoom.isActive()) {
- if(NETDATA.globalPanAndZoom.shouldBeAutoRefreshed(this)) {
- if(this.debug === true)
- this.log('canBeAutoRefreshed(): global panning: I need an update.');
+ // check and update the legend
+ this.legendUpdateDOM();
- return true;
- }
- else {
- if(this.debug === true)
- this.log('canBeAutoRefreshed(): global panning: I am already up to date.');
+ if(this.chart_created === true
+ && typeof this.library.update === 'function') {
- return false;
+ if(this.debug === true)
+ this.log('updating chart...');
+
+ this.updates_since_last_creation++;
+ if(NETDATA.options.debug.chart_errors === true) {
+ this.library.update(this, data);
+ }
+ else {
+ try {
+ this.library.update(this, data);
+ }
+ catch(err) {
+ error('chart failed to be updated as ' + this.library_name);
}
}
+ }
+ else {
+ if(this.debug === true)
+ this.log('creating chart...');
- if(this.selected === true) {
- if(this.debug === true)
- this.log('canBeAutoRefreshed(): I have a selection in place.');
-
- return false;
+ if(NETDATA.options.debug.chart_errors === true) {
+ this.library.create(this, data);
+ this.chart_created = true;
+ this.updates_since_last_creation = 0;
}
-
- if(this.paused === true) {
- if(this.debug === true)
- this.log('canBeAutoRefreshed(): I am paused.');
-
- return false;
+ else {
+ try {
+ this.library.create(this, data);
+ this.chart_created = true;
+ this.updates_since_last_creation = 0;
+ }
+ catch(err) {
+ error('chart failed to be created as ' + this.library_name);
+ }
}
+ }
+ hideMessage();
+ NETDATA.globalSelectionSync.stop();
- if(now - this.tm.last_autorefreshed >= this.data_update_every) {
- if(this.debug === true)
- this.log('canBeAutoRefreshed(): It is time to update me.');
+ // this.legendShowLatestValues();
- return true;
- }
+ // update the performance counters
+ var now = new Date().getTime();
+ this.tm.last_updated = now;
+
+ // don't update last_autorefreshed if this chart is
+ // forced to be updated with global PanAndZoom
+ if(NETDATA.globalPanAndZoom.isActive())
+ this.tm.last_autorefreshed = 0;
+ else {
+ if(NETDATA.options.current.parallel_refresher === true && NETDATA.options.current.concurrent_refreshes)
+ this.tm.last_autorefreshed = Math.round(now / this.data_update_every) * this.data_update_every;
+ else
+ this.tm.last_autorefreshed = now;
}
- }
- return false;
- }
+ this.refresh_dt_ms = now - started;
+ NETDATA.options.auto_refresher_fast_weight += this.refresh_dt_ms;
- chartState.prototype.autoRefresh = function(callback) {
- if(this.canBeAutoRefreshed() === true) {
- this.updateChart(callback);
- }
- else {
- if(typeof callback !== 'undefined')
- callback();
+ if(this.refresh_dt_element !== null)
+ this.refresh_dt_element.innerHTML = this.refresh_dt_ms.toString();
}
- }
- chartState.prototype._defaultsFromDownloadedChart = function(chart) {
- this.chart = chart;
- this.chart_url = chart.url;
- this.data_update_every = chart.update_every * 1000;
- this.data_points = Math.round(this.chartWidth() / this.chartPixelsPerPoint());
- this.tm.last_info_downloaded = new Date().getTime();
- }
+ this.updateChart = function(callback) {
+ // due to late initialization of charts and libraries
+ // we need to check this too
+ if(this.enabled === false) {
+ if(this.debug === true)
+ this.log('I am not enabled');
- // fetch the chart description from the netdata server
- chartState.prototype.getChart = function(callback) {
- this.chart = NETDATA.chartRegistry.get(this.host, this.id);
- if(this.chart) {
- this._defaultsFromDownloadedChart(this.chart);
- if(typeof callback === 'function') callback();
- }
- else {
- this.chart_url = this.host + "/api/v1/chart?chart=" + this.id;
+ if(typeof callback === 'function') callback();
+ return false;
+ }
- if(this.debug === true)
- this.log('downloading ' + this.chart_url);
+ if(this.chart === null) {
+ this.getChart(function() { that.updateChart(callback); });
+ return;
+ }
- var self = this;
+ if(this.library.initialized === false) {
+ if(this.library.enabled === true) {
+ this.library.initialize(function() { that.updateChart(callback); });
+ return;
+ }
+ else {
+ error('chart library "' + this.library_name + '" is not available.');
+ if(typeof callback === 'function') callback();
+ return false;
+ }
+ }
+
+ this.clearSelection();
+ this.chartURL();
- $.ajax( {
- url: this.chart_url,
+ if(this.debug === true)
+ this.log('updating from ' + this.data_url);
+
+ this.xhr = $.ajax( {
+ url: this.data_url,
crossDomain: NETDATA.options.crossDomainAjax,
cache: false,
async: true
})
- .done(function(chart) {
- chart.url = self.chart_url;
- chart.data_url = (self.host + chart.data_url);
- self._defaultsFromDownloadedChart(chart);
- NETDATA.chartRegistry.add(self.host, self.id, chart);
+ .success(function(data) {
+ if(that.debug === true)
+ that.log('data received. updating chart.');
+
+ that.updateChartWithData(data);
})
.fail(function() {
- NETDATA.error(404, self.chart_url);
- self.error('chart not found on url "' + self.chart_url + '"');
+ error('data download failed for url: ' + that.data_url);
})
.always(function() {
if(typeof callback === 'function') callback();
});
}
- }
- // resize the chart to its real dimensions
- // as given by the caller
- chartState.prototype.sizeChart = function() {
- if(this.hasLegend() === true)
- this.element.className += " netdata-container-with-legend";
- else
- this.element.className += " netdata-container";
+ this.isVisible = function() {
+ // this.log('last_visible_check: ' + this.tm.last_visible_check + ', last_page_scroll: ' + NETDATA.options.last_page_scroll);
- if(this.debug === true)
- this.log('sizing element');
+ // caching - we do not evaluate the charts visibility
+ // if the page has not been scrolled since the last check
+ if(this.tm.last_visible_check > NETDATA.options.last_page_scroll) {
+ if(this.debug === true)
+ this.log('isVisible: ' + this.___isVisible___);
- if(this.width !== 0)
- $(this.element).css('width', this.width);
+ return this.___isVisible___;
+ }
- if(this.height !== 0)
- $(this.element).css('height', this.height);
+ this.tm.last_visible_check = new Date().getTime();
- if(NETDATA.chartDefaults.min_width !== null)
- $(this.element).css('min-width', NETDATA.chartDefaults.min_width);
- }
+ var wh = window.innerHeight;
+ var x = this.element.getBoundingClientRect();
+ var ret = 0;
+ var tolerance = 0;
- chartState.prototype.noData = function() {
- if(this.dom_created === false)
- this.createChartDOM();
+ if(x.top < 0 && -x.top > x.height) {
+ // the chart is entirely above
+ ret = -x.top - x.height;
+ }
+ else if(x.top > wh) {
+ // the chart is entirely below
+ ret = x.top - wh;
+ }
- this.tm.last_autorefreshed = new Date().getTime();
- this.data_update_every = 30 * 1000;
- }
+ if(ret > tolerance) {
+ // the chart is too far
- // show a message in the chart
- chartState.prototype.message = function(type, msg) {
- this.hideChart();
- this.element_message.innerHTML = msg;
+ hideChart();
+ this.___isVisible___ = false;
+
+ if(this.debug === true)
+ this.log('isVisible: ' + this.___isVisible___);
- if(this.debug === null)
- this.log(msg);
- }
+ return this.___isVisible___;
+ }
+ else {
+ // the chart is inside or very close
- // show an error on the chart and stop it forever
- chartState.prototype.error = function(msg) {
- this.message('error', this.id + ': ' + msg);
- this.enabled = false;
- }
+ unhideChart();
+ this.___isVisible___ = true;
+
+ if(this.debug === true)
+ this.log('isVisible: ' + this.___isVisible___);
- // show a message indicating the chart is loading
- chartState.prototype.info = function(msg) {
- this.message('info', this.id + ': ' + msg);
- }
+ return this.___isVisible___;
+ }
+ }
- chartState.prototype.init = function() {
- this.element.innerHTML = '';
+ this.isAutoRefreshed = function() {
+ return (this.current.autorefresh);
+ }
- this.element_message = document.createElement('div');
- this.element_message.className += ' netdata-message';
- this.element.appendChild(this.element_message);
+ this.canBeAutoRefreshed = function() {
+ now = new Date().getTime();
- this.element_loading = document.createElement('div');
- this.element_loading.className += ' netdata-chart-is-loading';
- this.element.appendChild(this.element_loading);
+ if(this.enabled === false) {
+ if(this.debug === true)
+ this.log('I am not enabled');
- if(this.debug === null)
- this.log('created');
+ return false;
+ }
- // make sure the host does not end with /
- // all netdata API requests use absolute paths
- while(this.host.slice(-1) === '/')
- this.host = this.host.substring(0, this.host.length - 1);
+ if(this.library === null || this.library.enabled === false) {
+ error('charting library "' + this.library_name + '" is not available');
+ if(this.debug === true)
+ this.log('My chart library ' + this.library_name + ' is not available');
- // check the requested library is available
- // we don't initialize it here - it will be initialized when
- // this chart will be first used
- if(typeof NETDATA.chartLibraries[this.library_name] === 'undefined') {
- NETDATA.error(402, this.library_name);
- this.error('chart library "' + this.library_name + '" is not found');
+ return false;
+ }
+
+ if(this.isVisible() === false) {
+ if(NETDATA.options.debug.visibility === true || this.debug === true)
+ this.log('I am not visible');
+
+ return false;
+ }
+
+ if(this.current.force_update_at !== 0 && this.current.force_update_at < now) {
+ if(this.debug === true)
+ this.log('timed force update detected - allowing this update');
+
+ this.current.force_update_at = 0;
+ return true;
+ }
+
+ if(this.isAutoRefreshed() === true) {
+ // allow the first update, even if the page is not visible
+ if(this.updates_counter && NETDATA.options.page_is_visible === false) {
+ if(NETDATA.options.debug.focus === true || this.debug === true)
+ this.log('canBeAutoRefreshed(): page does not have focus');
+
+ return false;
+ }
+
+ if(this.needsRecreation() === true) {
+ if(this.debug === true)
+ this.log('canBeAutoRefreshed(): needs re-creation.');
+
+ return true;
+ }
+
+ // options valid only for autoRefresh()
+ if(NETDATA.options.auto_refresher_stop_until === 0 || NETDATA.options.auto_refresher_stop_until < now) {
+ if(NETDATA.globalPanAndZoom.isActive()) {
+ if(NETDATA.globalPanAndZoom.shouldBeAutoRefreshed(this)) {
+ if(this.debug === true)
+ this.log('canBeAutoRefreshed(): global panning: I need an update.');
+
+ return true;
+ }
+ else {
+ if(this.debug === true)
+ this.log('canBeAutoRefreshed(): global panning: I am already up to date.');
+
+ return false;
+ }
+ }
+
+ if(this.selected === true) {
+ if(this.debug === true)
+ this.log('canBeAutoRefreshed(): I have a selection in place.');
+
+ return false;
+ }
+
+ if(this.paused === true) {
+ if(this.debug === true)
+ this.log('canBeAutoRefreshed(): I am paused.');
+
+ return false;
+ }
+
+ if(now - this.tm.last_autorefreshed >= this.data_update_every) {
+ if(this.debug === true)
+ this.log('canBeAutoRefreshed(): It is time to update me.');
+
+ return true;
+ }
+ }
+ }
+
+ return false;
}
- else if(NETDATA.chartLibraries[this.library_name].enabled === false) {
- NETDATA.error(403, this.library_name);
- this.error('chart library "' + this.library_name + '" is not enabled');
+
+ this.autoRefresh = function(callback) {
+ if(this.canBeAutoRefreshed() === true) {
+ this.updateChart(callback);
+ }
+ else {
+ if(typeof callback !== 'undefined')
+ callback();
+ }
}
- else
- this.library = NETDATA.chartLibraries[this.library_name];
- this.sizeChart();
+ this._defaultsFromDownloadedChart = function(chart) {
+ this.chart = chart;
+ this.chart_url = chart.url;
+ this.data_update_every = chart.update_every * 1000;
+ this.data_points = Math.round(this.chartWidth() / this.chartPixelsPerPoint());
+ this.tm.last_info_downloaded = new Date().getTime();
+ }
- // if we need to report the rendering speed
- // find the element that needs to be updated
- if(this.refresh_dt_element_name)
- this.refresh_dt_element = document.getElementById(this.refresh_dt_element_name) || null;
+ // fetch the chart description from the netdata server
+ this.getChart = function(callback) {
+ this.chart = NETDATA.chartRegistry.get(this.host, this.id);
+ if(this.chart) {
+ this._defaultsFromDownloadedChart(this.chart);
+ if(typeof callback === 'function') callback();
+ }
+ else {
+ this.chart_url = this.host + "/api/v1/chart?chart=" + this.id;
+
+ if(this.debug === true)
+ this.log('downloading ' + this.chart_url);
+
+ $.ajax( {
+ url: this.chart_url,
+ crossDomain: NETDATA.options.crossDomainAjax,
+ cache: false,
+ async: true
+ })
+ .done(function(chart) {
+ chart.url = that.chart_url;
+ chart.data_url = (that.host + chart.data_url);
+ that._defaultsFromDownloadedChart(chart);
+ NETDATA.chartRegistry.add(that.host, that.id, chart);
+ })
+ .fail(function() {
+ NETDATA.error(404, that.chart_url);
+ error('chart not found on url "' + that.chart_url + '"');
+ })
+ .always(function() {
+ if(typeof callback === 'function') callback();
+ });
+ }
+ }
+
+ // ============================================================================================================
+ // INITIALIZATION
- // the default mode for all charts
- this.setMode('auto');
+ init();
}
// get or create a chart state, given a DOM element
y: {
pixelsPerLabel: 15,
valueFormatter: function (x) {
+ // we format legends with the state object
+ // no need to do anything here
// return (Math.round(x*100) / 100).toLocaleString();
- //return state.legendFormatValue(x);
- //FIXME
+ // return state.legendFormatValue(x);
return x;
}
}
NETDATA.morrisChartCreate = function(state, data) {
state.morris_options = {
- element: state.element_chart_id,
+ element: state.element_chart.id,
data: data.result.data,
xkey: 'time',
ykeys: data.dimension_names,
projects / netdata.git / blobdiff