X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph.js;h=e7cb8f8483215d4b39d2fcc8fa51ef6795909ed5;hb=37567cceaeaee48596653c1b59adb12fca8dbc26;hp=483cf7e0bde13040483f90cded4f6a520d9bf21d;hpb=9922a600c3cc88246729cb13cbd198e4729b77da;p=dygraphs.git

diff --git a/dygraph.js b/dygraph.js
index 483cf7e..e7cb8f8 100644
--- a/dygraph.js
+++ b/dygraph.js
@@ -182,6 +182,11 @@ Dygraph.prototype.__init__ = function(div, file, attrs) {
   this.is_initial_draw_ = true;
   this.annotations_ = [];
 
+  // Zoomed indicators - These indicate when the graph has been zoomed and on what axis.
+  this.zoomed = false;
+  this.zoomedX = false;
+  this.zoomedY = false;
+
   // Clear the div. This ensure that, if multiple dygraphs are passed the same
   // div, then only one will be drawn.
   div.innerHTML = "";
@@ -843,7 +848,14 @@ Dygraph.prototype.createDragInterface_ = function() {
 
   // Track the beginning of drag events
   Dygraph.addEvent(this.mouseEventElement_, 'mousedown', function(event) {
-    event.preventDefault();  // prevents mouse drags from selecting page text.
+    // prevents mouse drags from selecting page text.
+    if (event.preventDefault) {
+      event.preventDefault();  // Firefox, Chrome, etc.
+    } else {
+      event.returnValue = false;  // IE
+      event.cancelBubble = true;  
+    }
+
     px = Dygraph.findPosX(self.canvas_);
     py = Dygraph.findPosY(self.canvas_);
     dragStartX = getX(event);
@@ -1067,6 +1079,8 @@ Dygraph.prototype.doZoomX_ = function(lowX, highX) {
  */
 Dygraph.prototype.doZoomXDates_ = function(minDate, maxDate) {
   this.dateWindow_ = [minDate, maxDate];
+  this.zoomed = true;
+  this.zoomedX = true;
   this.drawGraph_();
   if (this.attr_("zoomCallback")) {
     var yRange = this.yAxisRange();
@@ -1095,10 +1109,13 @@ Dygraph.prototype.doZoomY_ = function(lowY, highY) {
     valueRanges.push([low[1], hi[1]]);
   }
 
+  this.zoomed = true;
+  this.zoomedY = true;
   this.drawGraph_();
   if (this.attr_("zoomCallback")) {
     var xRange = this.xAxisRange();
-    this.attr_("zoomCallback")(xRange[0], xRange[1], this.yAxisRanges());
+    var yRange = this.yAxisRange();
+    this.attr_("zoomCallback")(xRange[0], xRange[1], yRange[0], yRange[1]);
   }
 };
 
@@ -1125,6 +1142,9 @@ Dygraph.prototype.doUnzoom_ = function() {
   if (dirty) {
     // Putting the drawing operation before the callback because it resets
     // yAxisRange.
+    this.zoomed = false;
+    this.zoomedX = false;
+    this.zoomedY = false;
     this.drawGraph_();
     if (this.attr_("zoomCallback")) {
       var minDate = this.rawData_[0][0];
@@ -1963,6 +1983,15 @@ Dygraph.prototype.drawGraph_ = function() {
  *   indices are into the axes_ array.
  */
 Dygraph.prototype.computeYAxes_ = function() {
+  var valueWindow;
+  if (this.axes_ != undefined) {
+    // Preserve valueWindow settings.
+    valueWindow = [];
+    for (var index = 0; index < this.axes_.length; index++) {
+      valueWindow.push(this.axes_[index].valueWindow);
+    }
+  }
+
   this.axes_ = [{}];  // always have at least one y-axis.
   this.seriesToAxisMap_ = {};
 
@@ -2035,6 +2064,13 @@ Dygraph.prototype.computeYAxes_ = function() {
     if (vis[i - 1]) seriesToAxisFiltered[s] = this.seriesToAxisMap_[s];
   }
   this.seriesToAxisMap_ = seriesToAxisFiltered;
+
+  if (valueWindow != undefined) {
+    // Restore valueWindow settings.
+    for (var index = 0; index < valueWindow.length; index++) {
+      this.axes_[index].valueWindow = valueWindow[index];
+    }
+  }
 };
 
 /**
@@ -2915,7 +2951,14 @@ Dygraph.GVizChart = function(container) {
 }
 
 Dygraph.GVizChart.prototype.draw = function(data, options) {
+  // Clear out any existing dygraph.
+  // TODO(danvk): would it make more sense to simply redraw using the current
+  // date_graph object?
   this.container.innerHTML = '';
+  if (typeof(this.date_graph) != 'undefined') {
+    this.date_graph.destroy();
+  }
+
   this.date_graph = new Dygraph(this.container, data, options);
 }