/** * @class Ext.sparkline.Base * * The base class for ExtJS SparkLines. SparkLines are small, inline graphs used to visually * display small amounts of data. For large datasets, use the {@link Ext.chart.AbstractChart chart package}. * * The SparkLine subclasses accept an {@link #values array of values}, and present the data in different visualizations. * * @example * new Ext.Panel({ * height: 300, * width: 600, * frame: true, * title: 'Test Sparklines', * renderTo:document.body, * bodyPadding: 10, * * // Named listeners will resolve to methods in this Panel * defaultListenerScope: true, * * // Named references will be collected, and can be access from this Panel * referenceHolder: true, * * items: [{ * reference: 'values', * xtype: 'textfield', * fieldLabel: 'Values', * validator: function(v) { * var result = []; * * v = v.replace(/\s/g, ''); * v = v.replace(/,$/, ''); * v = v.split(','); * for (var i = 0; i < v.length; i++) { * if (!Ext.isNumeric(v[i])) { * return 'Value must be a comma separated array of numbers'; * } * result.push(parseInt(v[i], 10)); * } * this.values = result; * return true; * }, * listeners: { * change: 'onTypeChange', * buffer: 500, * afterrender: { * fn: 'afterTypeRender', * single: true * } * } * }, { * reference: 'type', * xtype: 'combobox', * fieldLabel: 'Type', * store: [ * ['sparklineline', 'Line'], * ['sparklinebox', 'Box'], * ['sparklinebullet', 'Bullet'], * ['sparklinediscrete', 'Discrete'], * ['sparklinepie', 'Pie'], * ['sparklinetristate', 'TriState'] * ], * value: 'sparklineline', * listeners: { * change: 'onTypeChange', * buffer: 500 * } * }], * * // Start with a line plot. * afterTypeRender: function(typeField) { * typeField.setValue('6,10,4,-3,7,2'); * }, * * onTypeChange: function() { * var me = this, * refs = me.getReferences(), * config; * * if (me.sparkLine) { * me.remove(me.sparkLine, true); * } * config = { * xtype: refs.type.getValue(), * values: refs.values.values, * height: 25, * width: 100 * }; * me.sparkLine = Ext.create(config); * me.add(me.sparkLine); * * // Put under fields * me.sparkLine.el.dom.style.marginLeft = refs.type.labelEl.getWidth() + 'px'; * } * }); * */Ext.define('Ext.sparkline.Base', { extend: 'Ext.Gadget', xtype: 'sparkline', requires: [ 'Ext.XTemplate', 'Ext.sparkline.CanvasCanvas', 'Ext.sparkline.VmlCanvas', 'Ext.util.Color' ], cachedConfig: { /** * @cfg {String} lineColor * The hex value for line colors in graphs which * display lines ({@link Ext.sparkline.Box Box}, * {@link Ext.sparkline.Discrete Discrete} and {@link Ext.sparkline.Line Line}). */ lineColor: '#157fcc', defaultPixelsPerValue: 3, tagValuesAttribute: 'values', enableTagOptions: false, enableHighlight: true, /** * @cfg {String} [highlightColor=null] * The hex value for the highlight color to use when mouseing over a graph segment. */ highlightColor: null, /** * @cfg {Number} [highlightLighten] * How much to lighten the highlight color by when mouseing over a graph segment. */ highlightLighten: 0.1, /** * @cfg {Boolean} [tooltipSkipNull=true] * Null values will not have a tooltip displayed. */ tooltipSkipNull: true, /** * @cfg {String} [tooltipPrefix] * A string to prepend to each field displayed in a tooltip. */ tooltipPrefix: '', /** * @cfg {String} [tooltipSuffix] * A string to append to each field displayed in a tooltip. */ tooltipSuffix: '', /** * @cfg {Boolean} [disableTooltips=false] * Set to `true` to disable mouseover tooltips. */ disableTooltips: false, disableInteraction: false, /** * @cfg {String/Ext.XTemplate} [tipTpl] * An XTemplate used to display the value or values in a tooltip when hovering * over a Sparkline. * * The implemented subclases all define their own `tipTpl`, but it can be overridden. */ tipTpl: null }, config: { /** * @cfg {Number[]} values An array of numbers which define the chart. */ values: null }, baseCls: Ext.baseCSSPrefix + 'sparkline', element: { tag: 'canvas', reference: 'element', style: { display: 'inline-block', verticalAlign: 'top' }, listeners: { mouseenter: 'onMouseEnter', mouseleave: 'onMouseLeave', mousemove: 'onMouseMove' }, // Create canvas zero sized so that it does not affect the containing element's initial layout // https://sencha.jira.com/browse/EXTJSIV-10145 width: 0, height: 0 }, defaultBindProperty: 'values', // When any config is changed, the canvas needs to be redrawn. // This is done at the next animation frame when this queue is traversed. redrawQueue: {}, inheritableStatics: { /** * @private * @static * @inheritable */ onClassCreated: function(cls) { var configUpdater = cls.prototype.updateConfigChange, proto = cls.prototype, configs = cls.getConfigurator().configs, config, updaterName; // Set up an applier for all local configs which kicks off a request to redraw on the next animation frame for (config in configs) { // tipTpl not included in this scheme if (config !== 'tipTpl') { updaterName = Ext.Config.get(config).names.update; if (proto[updaterName]) { proto[updaterName] = Ext.Function.createSequence(proto[updaterName], configUpdater); } else { proto[updaterName] = configUpdater; } } } } }, constructor: function(config) { var me = this, ns = Ext.sparkline; // The canvas sets our element config me.canvas = Ext.supports.Canvas ? new ns.CanvasCanvas(me) : new ns.VmlCanvas(me); me.callParent([config]); }, // determine if all values of an array match a value // returns true if the array is empty all: function (val, arr, ignoreNull) { var i; for (i = arr.length; i--; ) { if (ignoreNull && arr[i] === null) { continue; } if (arr[i] !== val) { return false; } } return true; }, // generic config value updater. // Redraws the graph, unless we are configured to buffer redraws // in wehich case it adds this to the queue to do a redraw on the next animation frame. updateConfigChange: function(newValue) { var me = this; // If we are buffering until animation frame, or we have not been sized, then // queue a redraw flush. if (me.bufferRedraw || !me.height || !me.width) { me.redrawQueue[me.getId()] = me; // Ensure that there is a single timer to handle all queued redraws. if (!me.redrawTimer) { Ext.sparkline.Base.prototype.redrawTimer = Ext.raf(me.processRedrawQueue); } } else { me.redraw(); } return newValue; }, // Appliers convert an incoming config value. // Ensure the tipTpl is an XTemplate applyTipTpl: function(tipTpl) { if (tipTpl && !tipTpl.isTemplate) { tipTpl = new Ext.XTemplate(tipTpl); } return tipTpl; }, normalizeValue: function (val) { var nf; switch (val) { case 'undefined': val = undefined; break; case 'null': val = null; break; case 'true': val = true; break; case 'false': val = false; break; default: nf = parseFloat(val); if (val == nf) { val = nf; } } return val; }, normalizeValues: function (vals) { var i, result = []; for (i = vals.length; i--;) { result[i] = this.normalizeValue(vals[i]); } return result; }, updateWidth: function(width, oldWidth) { var me = this, dom = me.element.dom, measurer = me.measurer; me.callParent([width, oldWidth]); me.canvas.setWidth(width); me.width = width; if (me.height == null && measurer) { me.setHeight(parseInt(measurer.getCachedStyle(dom.parentNode, 'line-height'), 10)); } }, updateHeight: function(height, oldHeight) { var me = this; me.callParent([height, oldHeight]); me.canvas.setHeight(height); me.height = height; }, setValues: function(values) { var me = this, oldValues = me.getValues(); // the values config is expected to be an array values = values == null ? [] : Ext.Array.from(values); me.values = values; me.callParent([values]); // If it's physically the same Array object, we need to invoke the updater // because though the array is the same, it may have been mutated, // and the config system setter will reject the change and not invoke the updater. // This is how the Stock Ticker example works. It shuffles values down // a static array. if (values === oldValues) { me.updateValues([values, oldValues]); } }, redraw: function() { var me = this; if (!me.destroyed) { me.canvas.onOwnerUpdate(); me.canvas.reset(); if (me.getValues()) { me.onUpdate(); me.renderGraph(); } } }, onUpdate: Ext.emptyFn, /* * Render the chart to the canvas */ renderGraph: function () { var ret = true; if (this.disabled) { this.canvas.reset(); ret = false; } return ret; }, onMouseEnter: function(e) { this.onMouseMove(e); }, onMouseMove: function (e) { var me = this; // In IE/Edge, the mousemove event fires before mouseenter // This is correct according to the spec // https://www.w3.org/TR/uievents/#events-mouseevent-event-order me.canvasRegion = me.canvasRegion || me.canvas.el.getRegion(); me.currentPageXY = e.getPoint(); me.redraw(); }, onMouseLeave: function () { var me = this; // mouseleave is guaranteed to fire last, so clear region here me.canvasRegion = me.currentPageXY = me.targetX = me.targetY = null; me.redraw(); me.hideTip(); }, updateDisplay: function () { var me = this, values = me.getValues(), tipHtml, region; // To work out the position of currentPageXY within the canvas, we must account for the fact that // while document Y values as represented in the currentPageXY are based from the top of // the document, canvas Y values begin from the bottom of the canvas element. if (values && values.length && me.currentPageXY && me.canvasRegion.contains(me.currentPageXY)) { region = me.getRegion(me.currentPageXY[0] - me.canvasRegion.left, (me.canvasRegion.bottom - 1) - me.currentPageXY[1]); if (region != null && me.isValidRegion(region, values)) { if (!me.disableHighlight) { me.renderHighlight(region); } if (!me.getDisableTooltips()) { tipHtml = me.getRegionTooltip(region); } } if (me.hasListeners.sparklineregionchange) { me.fireEvent('sparklineregionchange', me); } if (tipHtml) { me.getSharedTooltip().setHtml(tipHtml); me.showTip(); } } // No tip content; ensure it's hidden if (!tipHtml) { me.hideTip(); } }, /** * @method * Return a region id for a given x/y co-ordinate */ getRegion: Ext.emptyFn, /** * Fetch the HTML to display as a tooltip */ getRegionTooltip: function(region) { var me = this, entries = [], tipTpl = me.getTipTpl(), fields, showFields, showFieldsKey, newFields, fv, formatter, fieldlen, i, j; fields = me.getRegionFields(region); formatter = me.tooltipFormatter; if (formatter) { return formatter(me, me, fields); } if (!tipTpl) { return ''; } if (!Ext.isArray(fields)) { fields = [fields]; } showFields = me.tooltipFormatFieldlist; showFieldsKey = me.tooltipFormatFieldlistKey; if (showFields && showFieldsKey) { // user-selected ordering of fields newFields = []; for (i = fields.length; i--;) { fv = fields[i][showFieldsKey]; if ((j = Ext.Array.indexOf(fv, showFields)) !== -1) { newFields[j] = fields[i]; } } fields = newFields; } fieldlen = fields.length; for (j = 0; j < fieldlen; j++) { if (!fields[j].isNull || !me.getTooltipSkipNull()) { Ext.apply(fields[j], { prefix: me.getTooltipPrefix(), suffix: me.getTooltipSuffix() }); entries.push(tipTpl.apply(fields[j])); } } if (entries.length) { return entries.join('<br>'); } return ''; }, getRegionFields: Ext.emptyFn, calcHighlightColor: function(color) { var me = this, highlightColor = me.getHighlightColor(), lighten = me.getHighlightLighten(), o; if (highlightColor) { return highlightColor; } if (lighten) { o = Ext.util.Color.fromString(color); if (o) { o.lighten(lighten); color = o.toHex(); } } return color; }, destroy: function() { delete this.redrawQueue[this.getId()]; this.callParent(); }, privates: { hideTip: Ext.privateFn, isValidRegion: function(region, values) { return region < values.length; }, showTip: Ext.privateFn }}, function(SparklineBase) { var proto = SparklineBase.prototype; proto.getSharedTooltip = function () { var me = this, tooltip = me.tooltip; if (!tooltip) { proto.tooltip = tooltip = SparklineBase.constructTip(); } return tooltip; }; SparklineBase.onClassCreated(SparklineBase); proto.processRedrawQueue = function () { var redrawQueue = proto.redrawQueue, id; for (id in redrawQueue) { redrawQueue[id].redraw(); } proto.redrawQueue = {}; proto.redrawTimer = 0; };});