auto_tests/tests/DygraphOps.js

   1 // Copyright (c) 2011 Google, Inc.
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining a copy
   4 // of this software and associated documentation files (the "Software"), to deal
   5 // in the Software without restriction, including without limitation the rights
   6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 // copies of the Software, and to permit persons to whom the Software is
   8 // furnished to do so, subject to the following conditions:
   9 //
  10 // The above copyright notice and this permission notice shall be included in
  11 // all copies or substantial portions of the Software.
  12 //
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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  18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19 // THE SOFTWARE.
  20
  21
  22 /**
  23  * @fileoverview Utility functions for Dygraphs.
  24  *
  25  * @author konigsberg@google.com (Robert Konigsberg)
  26  */
  27 var DygraphOps = {};
  28
  29 DygraphOps.defaultEvent_ = {
  30   type : '',
  31   canBubble : true,
  32   cancelable : true,
  33   view : document.defaultView,
  34   detail : 0,
  35   screenX : 0,
  36   screenY : 0,
  37   clientX : 0,
  38   clientY : 0,
  39   ctrlKey : false,
  40   altKey : false,
  41   shiftKey : false,
  42   metaKey : false,
  43   button : 0,
  44   relatedTarget : null
  45 };
  46
  47 DygraphOps.createEvent_ = function(command, custom) {
  48
  49   var copy = function(from, to) {
  50     if (from != null) {
  51       for (var prop in from) {
  52         if(from.hasOwnProperty(prop)) {
  53           to[prop] = from[prop];
  54         }
  55       }
  56     }
  57   }
  58
  59   var e = {};
  60   copy(DygraphOps.defaultEvent_, e);
  61   copy(command, e);
  62   copy(custom, e);
  63
  64   var event = document.createEvent('MouseEvents');
  65   event.initMouseEvent(
  66     e.type,
  67     e.canBubble,
  68     e.cancelable,
  69     e.view,
  70     e.detail,
  71     e.screenX,
  72     e.screenY,
  73     e.clientX,
  74     e.clientY,
  75     e.ctrlKey,
  76     e.altKey,
  77     e.shiftKey,
  78     e.metaKey,
  79     e.button,
  80     e.relatedTarget);
  81   return event;
  82 }
  83
  84 DygraphOps.dispatchDoubleClick = function(g, custom) {
  85   var opts = {
  86     type : 'dblclick',
  87     detail : 2
  88   };
  89   var event = DygraphOps.createEvent_(opts, custom);
  90   g.canvas_.dispatchEvent(event);
  91 };
  92
  93 DygraphOps.dispatchMouseDown = function(g, x, y, custom) {
  94   var px = Dygraph.findPosX(g.canvas_);
  95   var py = Dygraph.findPosY(g.canvas_);
  96
  97   var pageX = px + g.toDomXCoord(x);
  98   var pageY = py + g.toDomYCoord(y);
  99
 100   var opts = {
 101     type : 'mousedown',
 102     detail : 1,
 103     screenX : pageX,
 104     screenY : pageY,
 105     clientX : pageX,
 106     clientY : pageY,
 107   };
 108
 109   var event = DygraphOps.createEvent_(opts, custom);
 110   g.canvas_.dispatchEvent(event);
 111 };
 112
 113 DygraphOps.dispatchMouseMove = function(g, x, y, custom) {
 114   var px = Dygraph.findPosX(g.canvas_);
 115   var py = Dygraph.findPosY(g.canvas_);
 116
 117   var pageX = px + g.toDomXCoord(x);
 118   var pageY = py + g.toDomYCoord(y);
 119
 120   var opts = {
 121     type : 'mousemove',
 122     screenX : pageX,
 123     screenY : pageY,
 124     clientX : pageX,
 125     clientY : pageY,
 126   };
 127
 128   var event = DygraphOps.createEvent_(opts, custom);
 129   g.canvas_.dispatchEvent(event);
 130 };
 131
 132 DygraphOps.dispatchMouseUp = function(g, x, y, custom) {
 133   var px = Dygraph.findPosX(g.canvas_);
 134   var py = Dygraph.findPosY(g.canvas_);
 135
 136   var pageX = px + g.toDomXCoord(x);
 137   var pageY = py + g.toDomYCoord(y);
 138
 139   var opts = {
 140     type : 'mouseup',
 141     screenX : pageX,
 142     screenY : pageY,
 143     clientX : pageX,
 144     clientY : pageY,
 145   };
 146
 147   var event = DygraphOps.createEvent_(opts, custom);
 148   g.canvas_.dispatchEvent(event);
 149 };