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 = Palette.createChild("button", Palette.createChild("span", row));
  61   go.innerText = "Redraw"
  62   go.onclick = function() {
  63     palette.onchange();
  64   };
  65
  66   var tmp = Palette.createChild("button", Palette.createChild("span", row));
  67   tmp.innerText = "Copy"
  68   tmp.onclick = function() {
  69     var textarea = new TextArea();
  70     textarea.show("Now is the time for all good men\nto come to the aid of their country");
  71   };
  72
  73   for (var opt in opts) {
  74     try {
  75       if (opts.hasOwnProperty(opt)) {
  76         var type = opts[opt].type;
  77         var isFunction = type.indexOf("function(") == 0;
  78         var row = Palette.createChild("div", table);
  79         row.onmouseover = function(source, title, type, body, e) {
  80           return function(e) {
  81             palette.tooltip.show(source, e, title, type, body);
  82           };
  83         } (row, opt, type, Dygraph.OPTIONS_REFERENCE[opt].description);
  84         row.onmouseout = function() { palette.tooltip.hide(); };
  85
  86         var div = Palette.createChild("span", row);
  87         div.innerText = opt;
  88         div.className = "name";
  89
  90         var value = Palette.createChild("span", row);
  91         value.className = "option";
  92
  93         if (isFunction) {
  94            var input = Palette.createChild("button", value);
  95            input.onclick = function(opt, palette) {
  96              return function(event) {
  97                var entry = palette.model[opt];
  98                var inputValue = entry.functionString;
  99                if (inputValue == null || inputValue.length == 0) {
 100                  inputValue = opts[opt].type + "{\n\n}";
 101                }
 102                var textarea = new TextArea();
 103                textarea.show("Function for " + opt, inputValue);
 104                textarea.okCallback = function(value) {
 105                  if (value != inputValue) {
 106                    entry.functionString = value;
 107                    entry.input.innerText = value ? "defined" : "not defined";
 108                    palette.onchange();
 109                  }
 110                }
 111              }
 112            }(opt, this);
 113         } else {
 114           var input = Palette.createChild("input", value);
 115           input.onkeypress = function(event) {
 116             var keycode = event.which;
 117             if (keycode == 13 || keycode == 8) {
 118               palette.onchange();
 119             }
 120           }
 121
 122           input.type="text";
 123         }
 124         this.model[opt] = { input: input, row: row };
 125       }
 126     } catch(err) {
 127       throw "For option " + opt + ":" + err;
 128     }
 129   }
 130   this.filter("");
 131 }
 132
 133 // TODO: replace semicolon parsing with comma parsing, and supporting quotes.
 134 Palette.parseStringArray = function(value) {
 135   if (value == null || value.length == 0) {
 136     return null;
 137   }
 138   return value.split(";");
 139 }
 140
 141 Palette.parseBooleanArray = function(value) {
 142   if (value == null || value.length == 0) {
 143     return null;
 144   }
 145   return value.split(',').map(function(x) { return x.trim() == "true"; });
 146 }
 147
 148 Palette.parseFloatArray = function(value) {
 149   if (value == null || value.length == 0) {
 150     return null;
 151   }
 152   return value.split(',').map(function(x) { return parseFloat(x); });
 153 }
 154
 155 Palette.parseIntArray = function(value) {
 156   if (value == null || value.length == 0) {
 157     return null;
 158   }
 159   return value.split(',').map(function(x) { return parseInt(x); });
 160 }
 161
 162 Palette.prototype.read = function() {
 163   var results = {};
 164   for (var opt in this.model) {
 165     if (this.model.hasOwnProperty(opt)) {
 166       var type = opts[opt].type;
 167       var isFunction = type.indexOf("function(") == 0;
 168       var input = this.model[opt].input;
 169       var value = isFunction ? this.model[opt].functionString : input.value;
 170       if (value && value.length != 0) {
 171         if (type == "boolean") {
 172           results[opt] = value == "true";
 173         } else if (type == "int") {
 174           results[opt] = parseInt(value);
 175         } else if (type == "float") {
 176           results[opt] = parseFloat(value);
 177         } else if (type == "array<string>") {
 178           results[opt] = Palette.parseStringArray(value);
 179         } else if (type == "array<float>") {
 180           results[opt] = Palette.parseFloatArray(value);
 181         } else if (type == "array<boolean>") {
 182           results[opt] = Palette.parseBooleanArray(value);
 183         } else if (type == "array<Date>") {
 184           results[opt] = Palette.parseIntArray(value);
 185         } else if (isFunction) {
 186           var localVariable = null;
 187           eval("localVariable = " + value);
 188           results[opt] = localVariable;
 189         } else {
 190           results[opt] = value;
 191         }
 192       }
 193     }
 194   }
 195   return results;
 196 }
 197
 198 /**
 199  * Write to input elements.
 200  */
 201 Palette.prototype.write = function(hash) {
 202   var results = {};
 203   for (var opt in this.model) {
 204     //  && hash.hasOwnProperty(opt)
 205     if (this.model.hasOwnProperty(opt)) {
 206       var input = this.model[opt].input;
 207       var type = opts[opt].type;
 208       var value = hash[opt];
 209       if (type == "array<string>") {
 210         if (value) {
 211           input.value = value.join("; ");
 212         }
 213       } else if (type.indexOf("array") == 0) {
 214         if (value) {
 215           input.value = value.join(", ");
 216         }
 217       } else if (type.indexOf("function(") == 0) {
 218         input.innerText = value ? "defined" : "not defined";
 219         this.model[opt].functionString = value ? value.toString() : null;
 220       } else {
 221         if (value) {
 222           input.value = value;
 223         }
 224       }
 225     }
 226   }
 227 }
 228
 229 Palette.prototype.filter = function(pattern) {
 230   pattern = pattern.toLowerCase();
 231   var even = true;
 232   for (var opt in this.model) {
 233     if (this.model.hasOwnProperty(opt)) {
 234       var row = this.model[opt].row;
 235       var matches = opt.toLowerCase().indexOf(pattern) >= 0;
 236       row.style.display = matches ? "block" : "none";
 237       if (matches) {
 238         row.className = even ? "even" : "odd";
 239         even = !even;
 240       }
 241     }
 242   }
 243 }