X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=plugins%2Frange-selector.js;h=fe32b1a26276bb04a24cf4bae4a5b94a23c6966e;hb=df75aef5d3eb2056253841c2522e61ecf5dc53a2;hp=b46737797d5a23e68e28f2e127ac2ae9a2676c5d;hpb=ec475f445b083d0ea77dbaf43ae709ad5cff35b8;p=dygraphs.git

diff --git a/plugins/range-selector.js b/plugins/range-selector.js
index b467377..fe32b1a 100644
--- a/plugins/range-selector.js
+++ b/plugins/range-selector.js
@@ -3,6 +3,7 @@
  * Copyright 2011 Paul Felix (paul.eric.felix@gmail.com)
  * MIT-licensed (http://opensource.org/licenses/MIT)
  */
+/*global Dygraph:false,TouchEvent:false */
 
 /**
  * @fileoverview This file contains the RangeSelector plugin used to provide
@@ -15,16 +16,11 @@ Dygraph.Plugins.RangeSelector = (function() {
 /*global Dygraph:false */
 "use strict";
 
-// Range selector status values
-var NOT_CREATED = 0; // Range selector interface has not been created
-var CREATED = 1 << 0; // Range selector interface has been created
-var ADDED_TO_GRAPH = 1 << 1; // Range selector elements have been added to the graph
-
 var rangeSelector = function() {
   this.isIE_ = /MSIE/.test(navigator.userAgent) && !window.opera;
   this.hasTouchInterface_ = typeof(TouchEvent) != 'undefined';
   this.isMobileDevice_ = /mobile|android/gi.test(navigator.appVersion);
-  this.status_ = NOT_CREATED;
+  this.interfaceCreated_ = false;
 };
 
 rangeSelector.prototype.toString = function() {
@@ -33,8 +29,6 @@ rangeSelector.prototype.toString = function() {
 
 rangeSelector.prototype.activate = function(dygraph) {
   this.dygraph_ = dygraph;
-  this.layout_ = dygraph.layout_;
-  this.graphDiv_ = dygraph.graphDiv;
   this.isUsingExcanvas_ = dygraph.isUsingExcanvas_;
   if (this.getOption_('showRangeSelector')) {
     this.createInterface_();
@@ -80,12 +74,12 @@ rangeSelector.prototype.createInterface_ = function() {
 
   // Range selector and animatedZooms have a bad interaction. See issue 359.
   if (this.getOption_('animatedZooms')) {
-    this.dygraph_.warn('Animated zooms and range selector are not compatible; disabling animatedZooms.');
+    Dygraph.warn('Animated zooms and range selector are not compatible; disabling animatedZooms.');
     this.dygraph_.updateOptions({animatedZooms: false}, true);
   }
 
+  this.interfaceCreated_ = true;
   this.addToGraph_();
-  this.status_ = CREATED;
 };
 
 /**
@@ -93,12 +87,11 @@ rangeSelector.prototype.createInterface_ = function() {
  * Adds the range selector to the graph.
  */
 rangeSelector.prototype.addToGraph_ = function() {
-  var graphDiv = this.graphDiv_;
+  var graphDiv = this.graphDiv_ = this.dygraph_.graphDiv;
   graphDiv.appendChild(this.bgcanvas_);
   graphDiv.appendChild(this.fgcanvas_);
   graphDiv.appendChild(this.leftZoomHandle_);
   graphDiv.appendChild(this.rightZoomHandle_);
-  this.status_ |= ADDED_TO_GRAPH;
 };
 
 /**
@@ -111,7 +104,7 @@ rangeSelector.prototype.removeFromGraph_ = function() {
   graphDiv.removeChild(this.fgcanvas_);
   graphDiv.removeChild(this.leftZoomHandle_);
   graphDiv.removeChild(this.rightZoomHandle_);
-  this.status_ ^= ADDED_TO_GRAPH;
+  this.graphDiv_ = null;
 };
 
 /**
@@ -129,7 +122,7 @@ rangeSelector.prototype.reserveSpace_ = function(e) {
  * Renders the static portion of the range selector at the predraw stage.
  */
 rangeSelector.prototype.renderStaticLayer_ = function() {
-  if (!this.updateInterfaceStatus_()) {
+  if (!this.updateVisibility_()) {
     return;
   }
   this.resize_();
@@ -141,7 +134,7 @@ rangeSelector.prototype.renderStaticLayer_ = function() {
  * Renders the interactive portion of the range selector after the chart has been drawn.
  */
 rangeSelector.prototype.renderInteractiveLayer_ = function() {
-  if (!this.updateInterfaceStatus_() || this.isChangingRange_) {
+  if (!this.updateVisibility_() || this.isChangingRange_) {
     return;
   }
   this.placeZoomHandles_();
@@ -150,23 +143,23 @@ rangeSelector.prototype.renderInteractiveLayer_ = function() {
 
 /**
  * @private
- * Check to see if the range selector is enabled/disabled and update interface accordingly.
+ * Check to see if the range selector is enabled/disabled and update visibility accordingly.
  */
-rangeSelector.prototype.updateInterfaceStatus_ = function() {
+rangeSelector.prototype.updateVisibility_ = function() {
   var enabled = this.getOption_('showRangeSelector');
   if (enabled) {
-    if (!(this.status_ & CREATED)) {
+    if (!this.interfaceCreated_) {
       this.createInterface_();
-    } else if (!(this.status_ & ADDED_TO_GRAPH)) {
+    } else if (!this.graphDiv_ || !this.graphDiv_.parentNode) {
       this.addToGraph_();
     }
-  } else if (this.status_ & ADDED_TO_GRAPH) {
+  } else if (this.graphDiv_) {
     this.removeFromGraph_();
     var dygraph = this.dygraph_;
     setTimeout(function() { dygraph.width_ = 0; dygraph.resize(); }, 1);
   }
   return enabled;
-}
+};
 
 /**
  * @private
@@ -182,8 +175,12 @@ rangeSelector.prototype.resize_ = function() {
     canvas.style.height = canvas.height + 'px';  // for IE
   }
 
-  var plotArea = this.layout_.getPlotArea();
-  var xAxisLabelHeight = this.getOption_('xAxisHeight') || (this.getOption_('axisLabelFontSize') + 2 * this.getOption_('axisTickSize'));
+  var plotArea = this.dygraph_.layout_.getPlotArea();
+  
+  var xAxisLabelHeight = 0;
+  if (this.dygraph_.getOptionForAxis('drawAxis', 'x')) {
+    xAxisLabelHeight = this.getOption_('xAxisHeight') || (this.getOption_('axisLabelFontSize') + 2 * this.getOption_('axisTickSize'));
+  }
   this.canvasRect_ = {
     x: plotArea.x,
     y: plotArea.y + plotArea.h + xAxisLabelHeight + 4,
@@ -271,8 +268,8 @@ rangeSelector.prototype.createZoomHandles_ = function() {
  */
 rangeSelector.prototype.initInteraction_ = function() {
   var self = this;
-  var topElem = this.isIE_ ? document : window;
-  var xLast = 0;
+  var topElem = document;
+  var clientXLast = 0;
   var handle = null;
   var isZooming = false;
   var isPanning = false;
@@ -285,7 +282,7 @@ rangeSelector.prototype.initInteraction_ = function() {
   // functions, defined below.  Defining them this way (rather than with
   // "function foo() {...}" makes JSHint happy.
   var toXDataWindow, onZoomStart, onZoom, onZoomEnd, doZoom, isMouseInPanZone,
-      onPanStart, onPan, onPanEnd, doPan, onCanvasMouseMove, applyBrowserZoomLevel;
+      onPanStart, onPan, onPanEnd, doPan, onCanvasHover;
 
   // Touch event functions
   var onZoomHandleTouchEvent, onCanvasTouchEvent, addTouchEvents;
@@ -298,22 +295,16 @@ rangeSelector.prototype.initInteraction_ = function() {
     return [xDataMin, xDataMax];
   };
 
-  applyBrowserZoomLevel = function(delX) {
-    var zoom = window.outerWidth/document.documentElement.clientWidth;
-    if (!isNaN(zoom)) {
-      return delX/zoom;
-    } else {
-      return delX;
-    }
-  };
-
   onZoomStart = function(e) {
     Dygraph.cancelEvent(e);
     isZooming = true;
-    xLast = e.screenX;
+    clientXLast = e.clientX;
     handle = e.target ? e.target : e.srcElement;
-    self.dygraph_.addEvent(topElem, 'mousemove', onZoom);
-    self.dygraph_.addEvent(topElem, 'mouseup', onZoomEnd);
+    if (e.type === 'mousedown' || e.type === 'dragstart') {
+      // These events are removed manually.
+      Dygraph.addEvent(topElem, 'mousemove', onZoom);
+      Dygraph.addEvent(topElem, 'mouseup', onZoomEnd);
+    }
     self.fgcanvas_.style.cursor = 'col-resize';
     tarp.cover();
     return true;
@@ -324,13 +315,12 @@ rangeSelector.prototype.initInteraction_ = function() {
       return false;
     }
     Dygraph.cancelEvent(e);
-    var delX = e.screenX - xLast;
-    if (Math.abs(delX) < 4 || e.screenX === 0) {
-      // First iPad move event seems to have screenX = 0
+
+    var delX = e.clientX - clientXLast;
+    if (Math.abs(delX) < 4) {
       return true;
     }
-    xLast = e.screenX;
-    delX = applyBrowserZoomLevel(delX);
+    clientXLast = e.clientX;
 
     // Move handle.
     var zoomHandleStatus = self.getZoomHandleStatus_();
@@ -403,9 +393,12 @@ rangeSelector.prototype.initInteraction_ = function() {
     if (!isPanning && isMouseInPanZone(e) && self.getZoomHandleStatus_().isZoomed) {
       Dygraph.cancelEvent(e);
       isPanning = true;
-      xLast = e.screenX;
-      self.dygraph_.addEvent(topElem, 'mousemove', onPan);
-      self.dygraph_.addEvent(topElem, 'mouseup', onPanEnd);
+      clientXLast = e.clientX;
+      if (e.type === 'mousedown') {
+        // These events are removed manually.
+        Dygraph.addEvent(topElem, 'mousemove', onPan);
+        Dygraph.addEvent(topElem, 'mouseup', onPanEnd);
+      }
       return true;
     }
     return false;
@@ -417,12 +410,11 @@ rangeSelector.prototype.initInteraction_ = function() {
     }
     Dygraph.cancelEvent(e);
 
-    var delX = e.screenX - xLast;
+    var delX = e.clientX - clientXLast;
     if (Math.abs(delX) < 4) {
       return true;
     }
-    xLast = e.screenX;
-    delX = applyBrowserZoomLevel(delX);
+    clientXLast = e.clientX;
 
     // Move range view
     var zoomHandleStatus = self.getZoomHandleStatus_();
@@ -475,7 +467,7 @@ rangeSelector.prototype.initInteraction_ = function() {
     }
   };
 
-  onCanvasMouseMove = function(e) {
+  onCanvasHover = function(e) {
     if (isZooming || isPanning) {
       return;
     }
@@ -516,7 +508,7 @@ rangeSelector.prototype.initInteraction_ = function() {
   addTouchEvents = function(elem, fn) {
     var types = ['touchstart', 'touchend', 'touchmove', 'touchcancel'];
     for (var i = 0; i < types.length; i++) {
-      self.dygraph_.addEvent(elem, types[i], fn);
+      self.dygraph_.addAndTrackEvent(elem, types[i], fn);
     }
   };
 
@@ -524,14 +516,14 @@ rangeSelector.prototype.initInteraction_ = function() {
   this.setDefaultOption_('panEdgeFraction', 0.0001);
 
   var dragStartEvent = window.opera ? 'mousedown' : 'dragstart';
-  this.dygraph_.addEvent(this.leftZoomHandle_, dragStartEvent, onZoomStart);
-  this.dygraph_.addEvent(this.rightZoomHandle_, dragStartEvent, onZoomStart);
+  this.dygraph_.addAndTrackEvent(this.leftZoomHandle_, dragStartEvent, onZoomStart);
+  this.dygraph_.addAndTrackEvent(this.rightZoomHandle_, dragStartEvent, onZoomStart);
 
   if (this.isUsingExcanvas_) {
-    this.dygraph_.addEvent(this.iePanOverlay_, 'mousedown', onPanStart);
+    this.dygraph_.addAndTrackEvent(this.iePanOverlay_, 'mousedown', onPanStart);
   } else {
-    this.dygraph_.addEvent(this.fgcanvas_, 'mousedown', onPanStart);
-    this.dygraph_.addEvent(this.fgcanvas_, 'mousemove', onCanvasMouseMove);
+    this.dygraph_.addAndTrackEvent(this.fgcanvas_, 'mousedown', onPanStart);
+    this.dygraph_.addAndTrackEvent(this.fgcanvas_, 'mousemove', onCanvasHover);
   }
 
   // Touch events
@@ -646,96 +638,49 @@ rangeSelector.prototype.drawMiniPlot_ = function() {
 
 /**
  * @private
- * Computes and returns the combinded series data along with min/max for the mini plot.
- * @return {Object} An object containing combinded series array, ymin, ymax.
+ * Computes and returns the combined series data along with min/max for the mini plot.
+ * The combined series consists of averaged values for all series.
+ * When series have error bars, the error bars are ignored.
+ * @return {Object} An object containing combined series array, ymin, ymax.
  */
 rangeSelector.prototype.computeCombinedSeriesAndLimits_ = function() {
-  var data = this.dygraph_.rawData_;
+  var g = this.dygraph_;
   var logscale = this.getOption_('logscale');
 
   // Create a combined series (average of all series values).
-  var combinedSeries = [];
-  var sum;
-  var count;
-  var mutipleValues;
-  var i, j, k;
-  var xVal, yVal;
-
-  // Find out if data has multiple values per datapoint.
-  // Go to first data point that actually has values (see http://code.google.com/p/dygraphs/issues/detail?id=246)
-  for (i = 0; i < data.length; i++) {
-    if (data[i].length > 1 && data[i][1] !== null) {
-      mutipleValues = typeof data[i][1] != 'number';
-      if (mutipleValues) {
-        sum = [];
-        count = [];
-        for (k = 0; k < data[i][1].length; k++) {
-          sum.push(0);
-          count.push(0);
-        }
-      }
-      break;
-    }
+  var i;
+
+  // TODO(danvk): short-circuit if there's only one series.
+  var rolledSeries = [];
+  var dataHandler = g.dataHandler_;
+  var options = g.attributes_;
+  for (i = 1; i < g.numColumns(); i++) {
+    var series = dataHandler.extractSeries(g.rawData_, i, options);
+    if (g.rollPeriod() > 1) {
+      series = dataHandler.rollingAverage(series, g.rollPeriod(), options);
+    }
+    
+    rolledSeries.push(series);
   }
 
-  for (i = 0; i < data.length; i++) {
-    var dataPoint = data[i];
-    xVal = dataPoint[0];
-
-    if (mutipleValues) {
-      for (k = 0; k < sum.length; k++) {
-        sum[k] = count[k] = 0;
-      }
-    } else {
-      sum = count = 0;
-    }
-
-    for (j = 1; j < dataPoint.length; j++) {
-      if (this.dygraph_.visibility()[j-1]) {
-        var y;
-        if (mutipleValues) {
-          for (k = 0; k < sum.length; k++) {
-            y = dataPoint[j][k];
-            if (y === null || isNaN(y)) continue;
-            sum[k] += y;
-            count[k]++;
-          }
-        } else {
-          y = dataPoint[j];
-          if (y === null || isNaN(y)) continue;
-          sum += y;
-          count++;
-        }
-      }
-    }
-
-    if (mutipleValues) {
-      for (k = 0; k < sum.length; k++) {
-        sum[k] /= count[k];
-      }
-      yVal = sum.slice(0);
-    } else {
-      yVal = sum/count;
-    }
-
-    combinedSeries.push([xVal, yVal]);
-  }
-
-  // Account for roll period, fractions.
-  combinedSeries = this.dygraph_.rollingAverage(combinedSeries, this.dygraph_.rollPeriod_);
-
-  if (typeof combinedSeries[0][1] != 'number') {
-    for (i = 0; i < combinedSeries.length; i++) {
-      yVal = combinedSeries[i][1];
-      combinedSeries[i][1] = yVal[0];
-    }
+  var combinedSeries = [];
+  for (i = 0; i < rolledSeries[0].length; i++) {
+    var sum = 0;
+    var count = 0;
+    for (var j = 0; j < rolledSeries.length; j++) {
+      var y = rolledSeries[j][i][1];
+      if (y === null || isNaN(y)) continue;
+      count++;
+      sum += y;
+    }
+    combinedSeries.push([rolledSeries[0][i][0], sum / count]);
   }
 
   // Compute the y range.
   var yMin = Number.MAX_VALUE;
   var yMax = -Number.MAX_VALUE;
   for (i = 0; i < combinedSeries.length; i++) {
-    yVal = combinedSeries[i][1];
+    var yVal = combinedSeries[i][1];
     if (yVal !== null && isFinite(yVal) && (!logscale || yVal > 0)) {
       yMin = Math.min(yMin, yVal);
       yMax = Math.max(yMax, yVal);
@@ -846,8 +791,8 @@ rangeSelector.prototype.drawInteractiveLayer_ = function() {
  */
 rangeSelector.prototype.getZoomHandleStatus_ = function() {
   var halfHandleWidth = this.leftZoomHandle_.width/2;
-  var leftHandlePos = parseInt(this.leftZoomHandle_.style.left, 10) + halfHandleWidth;
-  var rightHandlePos = parseInt(this.rightZoomHandle_.style.left, 10) + halfHandleWidth;
+  var leftHandlePos = parseFloat(this.leftZoomHandle_.style.left) + halfHandleWidth;
+  var rightHandlePos = parseFloat(this.rightZoomHandle_.style.left) + halfHandleWidth;
   return {
       leftHandlePos: leftHandlePos,
       rightHandlePos: rightHandlePos,