experimental/palette/palette.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.
  23  *
  24  * @author konigsberg@google.com (Robert Konigsberg)
  25  */
  26 "use strict";
  27
  28 function Palette() {
  29   this.model = {};
  30   this.onchange = function() {};
  31   this.filterBar = null;
  32 }
  33
  34 Palette.createChild = function(type, parentElement) {
  35   var element = document.createElement(type);
  36   parentElement.appendChild(element);
  37   return element;
  38 };
  39
  40 Palette.prototype.create = function(document, parentElement) {
  41   var palette = this;
  42
  43   var table = Palette.createChild("div", parentElement);
  44   table.className = "palette";
  45   table.width="300px";
  46
  47   this.tooltip = new Tooltip();
  48
  49   var row = Palette.createChild("div", table);
  50   row.style.visibility = "visible";
  51   row.className = "header";
  52
  53   Palette.createChild("span", row).innerText = "Filter:";
  54   this.filterBar = Palette.createChild("input", Palette.createChild("span", row));
  55   this.filterBar.type = "search";
  56   this.filterBar.onkeyup = function() {
  57     palette.filter(palette.filterBar.value)
  58   };
  59   this.filterBar.onclick = this.filterBar.onkeyup;
  60   var go = document.createElement("button");
  61   Palette.createChild("span", row).appendChild(go);
  62   go.innerText = "Redraw"
  63   go.onclick = function() {
  64     palette.onchange();
  65   };
  66
  67   for (var opt in opts) {
  68     try {
  69       if (opts.hasOwnProperty(opt)) {
  70         var type = opts[opt].type;
  71         var isFunction = type.indexOf("function(") == 0;
  72         var row = Palette.createChild("div", table);
  73         row.onmouseover = function(source, title, type, body, e) {
  74           return function(e) {
  75             palette.tooltip.show(source, e, title, type, body);
  76           };
  77         } (row, opt, type, Dygraph.OPTIONS_REFERENCE[opt].description);
  78         row.onmouseout = function() { palette.tooltip.hide(); };
  79
  80         var div = Palette.createChild("span", row);
  81         div.innerText = opt;
  82         div.className = "name";
  83
  84         var value = Palette.createChild("span", row);
  85         value.className = "option";
  86
  87         if (isFunction) {
  88            var input = Palette.createChild("button", value);
  89            input.onclick = function(opt, palette) {
  90              return function(event) {
  91                var entry = palette.model[opt];
  92                var inputValue = entry.functionString;
  93                if (inputValue == null || inputValue.length == 0) {
  94                  inputValue = opts[opt].type + "{ }";
  95                }
  96                var value = prompt("enter function", inputValue);
  97                if (value != null) {
  98                  if (value.length == 0) {
  99                    value = null;
 100                  }
 101                  if (value != inputValue) {
 102                    entry.functionString = value;
 103                    entry.input.innerText = value ? "defined" : "not defined";
 104                    palette.onchange();
 105                  }
 106                }
 107              }
 108            }(opt, this);
 109         } else {
 110           var input = Palette.createChild("input", value);
 111           input.onkeypress = function(event) {
 112             var keycode = event.which;
 113             if (keycode == 13 || keycode == 8) {
 114               palette.onchange();
 115             }
 116           }
 117
 118           input.type="text";
 119         }
 120         this.model[opt] = { input: input, row: row };
 121       }
 122     } catch(err) {
 123       throw "For option " + opt + ":" + err;
 124     }
 125   }
 126   this.filter("");
 127 }
 128
 129 // TODO: replace semicolon parsing with comma parsing, and supporting quotes.
 130 Palette.parseStringArray = function(value) {
 131   if (value == null || value.length == 0) {
 132     return null;
 133   }
 134   return value.split(";");
 135 }
 136
 137 Palette.parseBooleanArray = function(value) {
 138   if (value == null || value.length == 0) {
 139     return null;
 140   }
 141   return value.split(',').map(function(x) { return x.trim() == "true"; });
 142 }
 143
 144 Palette.parseFloatArray = function(value) {
 145   if (value == null || value.length == 0) {
 146     return null;
 147   }
 148   return value.split(',').map(function(x) { return parseFloat(x); });
 149 }
 150
 151 Palette.parseIntArray = function(value) {
 152   if (value == null || value.length == 0) {
 153     return null;
 154   }
 155   return value.split(',').map(function(x) { return parseInt(x); });
 156 }
 157
 158 Palette.prototype.read = function() {
 159   var results = {};
 160   for (var opt in this.model) {
 161     if (this.model.hasOwnProperty(opt)) {
 162       var type = opts[opt].type;
 163       var isFunction = type.indexOf("function(") == 0;
 164       var input = this.model[opt].input;
 165       var value = isFunction ? this.model[opt].functionString : input.value;
 166       if (value && value.length != 0) {
 167         if (type == "boolean") {
 168           results[opt] = value == "true";
 169         } else if (type == "int") {
 170           results[opt] = parseInt(value);
 171         } else if (type == "float") {
 172           results[opt] = parseFloat(value);
 173         } else if (type == "array<string>") {
 174           results[opt] = Palette.parseStringArray(value);
 175         } else if (type == "array<float>") {
 176           results[opt] = Palette.parseFloatArray(value);
 177         } else if (type == "array<boolean>") {
 178           results[opt] = Palette.parseBooleanArray(value);
 179         } else if (type == "array<Date>") {
 180           results[opt] = Palette.parseIntArray(value);
 181         } else if (isFunction) {
 182           var localVariable = null;
 183           eval("localVariable = " + value);
 184           results[opt] = localVariable;
 185         } else {
 186           results[opt] = value;
 187         }
 188       }
 189     }
 190   }
 191   return results;
 192 }
 193
 194 /**
 195  * Write to input elements.
 196  */
 197 Palette.prototype.write = function(hash) {
 198   var results = {};
 199   for (var opt in this.model) {
 200     //  && hash.hasOwnProperty(opt)
 201     if (this.model.hasOwnProperty(opt)) {
 202       var input = this.model[opt].input;
 203       var type = opts[opt].type;
 204       var value = hash[opt];
 205       if (type == "array<string>") {
 206         if (value) {
 207           input.value = value.join("; ");
 208         }
 209       } else if (type.indexOf("array") == 0) {
 210         if (value) {
 211           input.value = value.join(", ");
 212         }
 213       } else if (type.indexOf("function(") == 0) {
 214         input.innerText = value ? "defined" : "not defined";
 215         this.model[opt].functionString = value ? value.toString() : null;
 216       } else {
 217         if (value) {
 218           input.value = value;
 219         }
 220       }
 221     }
 222   }
 223 }
 224
 225 Palette.prototype.filter = function(pattern) {
 226   pattern = pattern.toLowerCase();
 227   var even = true;
 228   for (var opt in this.model) {
 229     if (this.model.hasOwnProperty(opt)) {
 230       var row = this.model[opt].row;
 231       var matches = opt.toLowerCase().indexOf(pattern) >= 0;
 232       row.style.display = matches ? "block" : "none";
 233       if (matches) {
 234         row.className = even ? "even" : "odd";
 235         even = !even;
 236       }
 237     }
 238   }
 239 }