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//>>built
define("dojox/charting/action2d/TouchIndicator", ["dojo/_base/lang", "dojo/_base/declare", "dojo/_base/event", "./ChartAction", "./_IndicatorElement", "dojox/lang/utils"],
function(lang, declare, eventUtil, ChartAction, IndicatorElement, du){
/*=====
dojo.declare("dojox.charting.action2d.__TouchIndicatorCtorArgs", null, {
// summary:
// Additional arguments for Touch indicator.
// series: String
// Target series name for this chart action.
series: "",
// dualIndicator: Boolean?
// Whether a double touch on the chart creates a dual indicator showing data trend between the two touch points. Default is false.
dualIndicator: false,
// autoScroll: Boolean?
// Whether when moving indicator the chart is automatically scrolled. Default is true.
autoScroll: true,
// vertical: Boolean?
// Whether the indicator is vertical or not. Default is true.
vertical: true,
// fixed: Boolean?
// Whether a fixed precision must be applied to data values for display. Default is true.
fixed: true,
// precision: Number?
// The precision at which to round data values for display. Default is 1.
precision: 0,
// lineStroke: gfx.Stroke?
// An optional stroke to use for indicator line.
lineStroke: {},
// lineOutline: dojo.gfx.Stroke?
// An optional outline to use for indicator line.
lineOutline: {},
// lineShadow: dojo.gfx.Stroke?
// An optional shadow to use for indicator line.
lineShadow: {},
// stroke: dojo.gfx.Stroke?
// An optional stroke to use for indicator label background.
stroke: {},
// outline: dojo.gfx.Stroke?
// An optional outline to use for indicator label background.
outline: {},
// shadow: dojo.gfx.Stroke?
// An optional shadow to use for indicator label background.
shadow: {},
// fill: dojo.gfx.Fill?
// An optional fill to use for indicator label background.
fill: {},
// fillFunc: Function?
// An optional function to use to compute label background fill. It takes precedence over
// fill property when available.
fillFunc: null,
// labelFunc: Function?
// An optional function to use to compute label text. It takes precedence over
// the default text when available.
labelFunc: {},
// font: String?
// A font definition to use for indicator label background.
font: "",
// fontColor: String|dojo.Color?
// The color to use for indicator label background.
fontColor: "",
// markerStroke: dojo.gfx.Stroke?
// An optional stroke to use for indicator marker.
markerStroke: {},
// markerOutline: dojo.gfx.Stroke?
// An optional outline to use for indicator marker.
markerOutline: {},
// markerShadow: dojo.gfx.Stroke?
// An optional shadow to use for indicator marker.
markerShadow: {},
// markerFill: dojo.gfx.Fill?
// An optional fill to use for indicator marker.
markerFill: {},
// markerSymbol: String?
// An optional symbol string to use for indicator marker.
markerFill: {}
});
var ChartAction = dojox.charting.action2d.ChartAction;
=====*/
return declare("dojox.charting.action2d.TouchIndicator", ChartAction, {
// summary:
// Create a touch indicator action. You can touch over the chart to display a data indicator.
// the data description block for the widget parser
defaultParams: {
series: "",
dualIndicator: false,
vertical: true,
autoScroll: true,
fixed: true,
precision: 0
},
optionalParams: {
lineStroke: {},
outlineStroke: {},
shadowStroke: {},
stroke: {},
outline: {},
shadow: {},
fill: {},
fillFunc: null,
labelFunc: null,
font: "",
fontColor: "",
markerStroke: {},
markerOutline: {},
markerShadow: {},
markerFill: {},
markerSymbol: ""
},
constructor: function(chart, plot, kwArgs){
// summary:
// Create a new touch indicator action and connect it.
// chart: dojox.charting.Chart
// The chart this action applies to.
// kwArgs: dojox.charting.action2d.__TouchIndicatorCtorArgs?
// Optional arguments for the chart action.
this._listeners = [{eventName: "ontouchstart", methodName: "onTouchStart"},
{eventName: "ontouchmove", methodName: "onTouchMove"},
{eventName: "ontouchend", methodName: "onTouchEnd"},
{eventName: "ontouchcancel", methodName: "onTouchEnd"}];
this.opt = lang.clone(this.defaultParams);
du.updateWithObject(this.opt, kwArgs);
du.updateWithPattern(this.opt, kwArgs, this.optionalParams);
this._uName = "touchIndicator"+this.opt.series;
this.connect();
},
connect: function(){
// summary:
// Connect this action to the chart. This adds a indicator plot
// to the chart that's why Chart.render() must be called after connect.
this.inherited(arguments);
// add plot with unique name
this.chart.addPlot(this._uName, {type: IndicatorElement, inter: this});
},
disconnect: function(){
// summary:
// Disconnect this action from the chart.
var plot = this.chart.getPlot(this._uName);
if(plot.pageCoord){
// we might still have something drawn on the screen
this.onTouchEnd();
}
this.chart.removePlot(this._uName);
this.inherited(arguments);
},
onTouchStart: function(event){
// summary:
// Called when touch is started on the chart.
if(event.touches.length==1){
this._onTouchSingle(event, true);
}else if(this.opt.dualIndicator && event.touches.length==2){
this._onTouchDual(event);
}
},
onTouchMove: function(event){
// summary:
// Called when touch is moved on the chart.
if(event.touches.length==1){
this._onTouchSingle(event);
}else if(this.opt.dualIndicator && event.touches.length==2){
this._onTouchDual(event);
}
},
_onTouchSingle: function(event, delayed){
// sync
if(this.chart._delayedRenderHandle && !delayed){
// we have pending rendering from a previous call, let's sync
clearTimeout(this.chart._delayedRenderHandle);
this.chart._delayedRenderHandle = null;
this.chart.render();
}
var plot = this.chart.getPlot(this._uName);
plot.pageCoord = {x: event.touches[0].pageX, y: event.touches[0].pageY};
plot.dirty = true;
if(delayed){
this.chart.delayedRender();
}else{
this.chart.render();
}
eventUtil.stop(event);
},
_onTouchDual: function(event){
var plot = this.chart.getPlot(this._uName);
plot.pageCoord = {x: event.touches[0].pageX, y: event.touches[0].pageY};
plot.secondCoord = {x: event.touches[1].pageX, y: event.touches[1].pageY};
plot.dirty = true;
this.chart.render();
eventUtil.stop(event);
},
onTouchEnd: function(event){
// summary:
// Called when touch is ended or canceled on the chart.
var plot = this.chart.getPlot(this._uName);
plot.stopTrack();
plot.pageCoord = null;
plot.secondCoord = null;
plot.dirty = true;
this.chart.delayedRender();
}
});
});
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