experimental/palette/tooltip.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
  17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19 // THE SOFTWARE.
  20
  21 /**
  22  * @fileoverview Dygraphs options palette tooltip.
  23  *
  24  * @author konigsberg@google.com (Robert Konigsberg)
  25  */
  26 "use strict";
  27
  28 function Tooltip(parent) {
  29   if (!parent) {
  30     parent = document.getElementsByTagName("body")[0];
  31   }
  32   this.elem = Palette.createChild("div", parent);
  33   this.title = Palette.createChild("div", this.elem);
  34   this.elem.className = "tooltip";
  35   this.title.className = "title";
  36   this.type = Palette.createChild("div", this.elem);
  37   this.type.className = "type";
  38   this.body = Palette.createChild("div", this.elem);
  39   this.body.className = "body";
  40   this.hide();
  41 }
  42
  43 Tooltip.prototype.show = function(source, event, title, type, body) {
  44   this.title.innerHTML = title;
  45   this.body.innerHTML = body;
  46   this.type.textContent = type; // textContent for arrays.
  47
  48   var getTopLeft = function(element) {
  49     var x = element.offsetLeft;
  50     var y = element.offsetTop;
  51     element = element.offsetParent;
  52
  53     while(element != null) {
  54       x = parseInt(x) + parseInt(element.offsetLeft);
  55       y = parseInt(y) + parseInt(element.offsetTop);
  56       element = element.offsetParent;
  57     }
  58     return [y, x];
  59   }
  60
  61   this.elem.style.height = source.style.height;
  62   this.elem.style.width = "280";
  63   var topLeft = getTopLeft(source);
  64   this.elem.style.top = parseInt(topLeft[0] + source.offsetHeight) + 'px';
  65   this.elem.style.left = parseInt(topLeft[1] + 10) + 'px';
  66   this.elem.style.visibility = "visible";
  67 }
  68
  69 Tooltip.prototype.hide = function() {
  70   this.elem.style.visibility = "hidden";
  71 }