Merge pull request #491 from danvk/legend-never

[dygraphs.git] / dygraph.js

diff --git a/dygraph.js b/dygraph.js
index 49ecc3e..efc9092 100644 (file)
--- a/dygraph.js
+++ b/dygraph.js
@@ -47,7 +47,6 @@
 if (typeof(DEBUG) === 'undefined') DEBUG=true;
 
 var Dygraph = (function() {
-/*jshint globalstrict: true */
 /*global DygraphLayout:false, DygraphCanvasRenderer:false, DygraphOptions:false, G_vmlCanvasManager:false,ActiveXObject:false */
 "use strict";
 
@@ -118,10 +117,8 @@ Dygraph.KMG2_SMALL_LABELS = [ 'm', 'u', 'n', 'p', 'f', 'a', 'z', 'y' ];
  * and maxNumberWidth options.
  * @param {number} x The number to be formatted
  * @param {Dygraph} opts An options view
- * @param {string} name The name of the point's data series
- * @param {Dygraph} g The dygraph object
  */
-Dygraph.numberValueFormatter = function(x, opts, pt, g) {
+Dygraph.numberValueFormatter = function(x, opts) {
   var sigFigs = opts('sigFigs');
 
   if (sigFigs !== null) {
@@ -192,8 +189,8 @@ Dygraph.numberValueFormatter = function(x, opts, pt, g) {
  * variant for use as an axisLabelFormatter.
  * @private
  */
-Dygraph.numberAxisLabelFormatter = function(x, granularity, opts, g) {
-  return Dygraph.numberValueFormatter(x, opts, g);
+Dygraph.numberAxisLabelFormatter = function(x, granularity, opts) {
+  return Dygraph.numberValueFormatter(x, opts);
 };
 
 /**
@@ -315,9 +312,7 @@ Dygraph.DEFAULT_ATTRS = {
   stackedGraphNaNFill: 'all',
   hideOverlayOnMouseOut: true,
 
-  // TODO(danvk): support 'onmouseover' and 'never', and remove synonyms.
-  legend: 'onmouseover',  // the only relevant value at the moment is 'always'.
-
+  legend: 'onmouseover',
   stepPlot: false,
   avoidMinZero: false,
   xRangePad: 0,
@@ -555,6 +550,7 @@ Dygraph.prototype.__init__ = function(div, file, attrs) {
 
     var handlers = pluginInstance.activate(this);
     for (var eventName in handlers) {
+      if (!handlers.hasOwnProperty(eventName)) continue;
       // TODO(danvk): validate eventName.
       pluginDict.events[eventName] = handlers[eventName];
     }
@@ -1079,7 +1075,7 @@ Dygraph.prototype.toPercentXCoord = function(x) {
   var xRange = this.xAxisRange();
   var pct;
   var logscale = this.attributes_.getForAxis("logscale", 'x') ;
-  if (logscale == true) { // logscale can be null so we test for true explicitly.
+  if (logscale === true) {  // logscale can be null so we test for true explicitly.
     var logr0 = Dygraph.log10(xRange[0]);
     var logr1 = Dygraph.log10(xRange[1]);
     pct = (Dygraph.log10(x) - logr0) / (logr1 - logr0);
@@ -1489,6 +1485,26 @@ Dygraph.prototype.createDragInterface_ = function() {
       contextB.dragStartY = Dygraph.dragGetY_(event, contextB);
       contextB.cancelNextDblclick = false;
       contextB.tarp.cover();
+    },
+    destroy: function() {
+      var context = this;
+      if (context.isZooming || context.isPanning) {
+        context.isZooming = false;
+        context.dragStartX = null;
+        context.dragStartY = null;
+      }
+
+      if (context.isPanning) {
+        context.isPanning = false;
+        context.draggingDate = null;
+        context.dateRange = null;
+        for (var i = 0; i < self.axes_.length; i++) {
+          delete self.axes_[i].draggingValue;
+          delete self.axes_[i].dragValueRange;
+        }
+      }
+
+      context.tarp.uncover();
     }
   };
 
@@ -1512,27 +1528,13 @@ Dygraph.prototype.createDragInterface_ = function() {
 
   // If the user releases the mouse button during a drag, but not over the
   // canvas, then it doesn't count as a zooming action.
-  var mouseUpHandler = function(event) {
-    if (context.isZooming || context.isPanning) {
-      context.isZooming = false;
-      context.dragStartX = null;
-      context.dragStartY = null;
-    }
-
-    if (context.isPanning) {
-      context.isPanning = false;
-      context.draggingDate = null;
-      context.dateRange = null;
-      for (var i = 0; i < self.axes_.length; i++) {
-        delete self.axes_[i].draggingValue;
-        delete self.axes_[i].dragValueRange;
-      }
-    }
-
-    context.tarp.uncover();
-  };
+  if (!interactionModel.willDestroyContextMyself) {
+    var mouseUpHandler = function(event) {
+      context.destroy();
+    };
 
-  this.addAndTrackEvent(document, 'mouseup', mouseUpHandler);
+    this.addAndTrackEvent(document, 'mouseup', mouseUpHandler);
+  }
 };
 
 /**
@@ -1597,7 +1599,7 @@ Dygraph.prototype.drawZoomRect_ = function(direction, startX, endX, startY,
  */
 Dygraph.prototype.clearZoomRect_ = function() {
   this.currentZoomRectArgs_ = null;
-  this.canvas_ctx_.clearRect(0, 0, this.canvas_.width, this.canvas_.height);
+  this.canvas_ctx_.clearRect(0, 0, this.width_, this.height_);
 };
 
 /**
@@ -2719,8 +2721,7 @@ Dygraph.prototype.renderGraph_ = function(is_initial_draw) {
 
   // TODO(danvk): is this a performance bottleneck when panning?
   // The interaction canvas should already be empty in that situation.
-  this.canvas_.getContext('2d').clearRect(0, 0, this.canvas_.width,
-                                          this.canvas_.height);
+  this.canvas_.getContext('2d').clearRect(0, 0, this.width_, this.height_);
 
   if (this.getFunctionOption("drawCallback") !== null) {
     this.getFunctionOption("drawCallback")(this, is_initial_draw);
@@ -3550,6 +3551,7 @@ Dygraph.prototype.updateOptions = function(input_attrs, block_redraw) {
 Dygraph.mapLegacyOptions_ = function(attrs) {
   var my_attrs = {};
   for (var k in attrs) {
+    if (!attrs.hasOwnProperty(k)) continue;
     if (k == 'file') continue;
     if (attrs.hasOwnProperty(k)) my_attrs[k] = attrs[k];
   }