* @author Robert Konigsberg (konigsberg@google.com)
*/
+/*jshint globalstrict: true */
+/*global Dygraph:false */
+"use strict";
/**
* A collection of functions to facilitate build custom interaction models.
* dragStartX/dragStartY/etc. properties). This function modifies the context.
*/
Dygraph.Interaction.startPan = function(event, g, context) {
+ var i, axis;
context.isPanning = true;
var xRange = g.xAxisRange();
context.dateRange = xRange[1] - xRange[0];
var boundedValues = [];
var maxYPixelsToDraw = g.height_ * g.attr_("panEdgeFraction");
- for (var i = 0; i < g.axes_.length; i++) {
- var axis = g.axes_[i];
+ for (i = 0; i < g.axes_.length; i++) {
+ axis = g.axes_[i];
var yExtremes = axis.extremeRange;
var boundedTopY = g.toDomYCoord(yExtremes[0], i) + maxYPixelsToDraw;
// Record the range of each y-axis at the start of the drag.
// If any axis has a valueRange or valueWindow, then we want a 2D pan.
context.is2DPan = false;
- for (var i = 0; i < g.axes_.length; i++) {
- var axis = g.axes_[i];
+ for (i = 0; i < g.axes_.length; i++) {
+ axis = g.axes_[i];
var yRange = g.yAxisRange(i);
// TODO(konigsberg): These values should be in |context|.
// In log scale, initialTopValue, dragValueRange and unitsPerPixel are log scale.
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
- g.lastx_ != undefined && g.lastx_ != -1) {
+ g.lastx_ !== undefined && g.lastx_ != -1) {
Dygraph.Interaction.treatMouseOpAsClick(g, event, context);
}
var p = g.selPoints_[i];
var distance = Math.pow(p.canvasx - context.dragEndX, 2) +
Math.pow(p.canvasy - context.dragEndY, 2);
- if (closestIdx == -1 || distance < closestDistance) {
+ if (!isNaN(distance) &&
+ (closestIdx == -1 || distance < closestDistance)) {
closestDistance = distance;
closestIdx = i;
}
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
- g.lastx_ != undefined && g.lastx_ != -1) {
+ g.lastx_ !== undefined && g.lastx_ != -1) {
Dygraph.Interaction.treatMouseOpAsClick(g, event, context);
}
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
- g.lastx_ != undefined && g.lastx_ != -1) {
+ g.lastx_ !== undefined && g.lastx_ != -1) {
Dygraph.Interaction.treatMouseOpAsClick(g, event, context);
}
}