X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;ds=sidebyside;f=dygraph-interaction-model.js;h=a3de6f76d96c8fe609bcbd37d57b3aff4484f906;hb=81cb07d653f397d31c063ff3688c5e682f1d6d82;hp=3029025b7198be989d5d049069811226b5323a62;hpb=88e95c462340958bdfd0ac4c0736b94c5fd21024;p=dygraphs.git

diff --git a/dygraph-interaction-model.js b/dygraph-interaction-model.js
index 3029025..a3de6f7 100644
--- a/dygraph-interaction-model.js
+++ b/dygraph-interaction-model.js
@@ -10,6 +10,9 @@
  * @author Robert Konigsberg (konigsberg@google.com)
  */
 
+/*jshint globalstrict: true */
+/*global Dygraph:false */
+"use strict";
 
 /**
  * A collection of functions to facilitate build custom interaction models.
@@ -31,6 +34,7 @@ Dygraph.Interaction = {};
  * 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];
@@ -51,8 +55,8 @@ Dygraph.Interaction.startPan = function(event, g, context) {
     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;
@@ -69,8 +73,8 @@ Dygraph.Interaction.startPan = function(event, g, context) {
   // 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.
@@ -129,7 +133,7 @@ Dygraph.Interaction.movePan = function(event, g, context) {
 
       var pixelsDragged = context.dragEndY - context.dragStartY;
       var unitsDragged = pixelsDragged * axis.unitsPerPixel;
- 
+
       var boundedValue = context.boundedValues ? context.boundedValues[i] : null;
 
       // In log scale, maxValue and minValue are the logs of those values.
@@ -178,7 +182,7 @@ Dygraph.Interaction.endPan = function(event, g, 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);
   }
 
@@ -266,7 +270,8 @@ Dygraph.Interaction.treatMouseOpAsClick = function(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;
       }
@@ -311,7 +316,7 @@ Dygraph.Interaction.endZoom = function(event, g, 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);
   }
 
@@ -322,7 +327,7 @@ Dygraph.Interaction.endZoom = function(event, g, context) {
     g.doZoomY_(Math.min(context.dragStartY, context.dragEndY),
                Math.max(context.dragStartY, context.dragEndY));
   } else {
-    g.canvas_ctx_.clearRect(0, 0, g.canvas_.width, g.canvas_.height);
+    g.clearZoomRect_();
   }
   context.dragStartX = null;
   context.dragStartY = null;
@@ -408,8 +413,26 @@ Dygraph.Interaction.nonInteractiveModel_ = {
     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);
     }
   }
 };
+
+// Default interaction model when using the range selector.
+Dygraph.Interaction.dragIsPanInteractionModel = {
+  mousedown: function(event, g, context) {
+    context.initializeMouseDown(event, g, context);
+    Dygraph.startPan(event, g, context);
+  },
+  mousemove: function(event, g, context) {
+    if (context.isPanning) {
+      Dygraph.movePan(event, g, context);
+    }
+  },
+  mouseup: function(event, g, context) {
+    if (context.isPanning) {
+      Dygraph.endPan(event, g, context);
+    }
+  }
+};