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| <html> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> | |
| <body></body> | |
| <script src="frontend.js"></script> | |
| <script src="frontendDev.js"></script> | |
| </html> |
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| tree = { | |
| "topLevelItems": ["1", "2", "3", "4"], | |
| "items": { | |
| "1": { | |
| "parent": null, | |
| "title": "Books", | |
| "children": ["11", "12", "13"] | |
| }, | |
| "11": { | |
| "parent": "1", | |
| "title": "Fiction", | |
| "children": ["111", "112", "113"] | |
| }, | |
| "111": { | |
| "parent": "11", | |
| "title": "Classic", | |
| "children": ["1111", "1112"] | |
| }, | |
| "1111": { | |
| "parent": "111", | |
| "title": "Copyrighted" | |
| }, | |
| "1112": { | |
| "parent": "111", | |
| "title": "Public Domain" | |
| }, | |
| "112": { | |
| "parent": "11", | |
| "title": "Science Fiction" | |
| }, | |
| "113": { | |
| "parent": "11", | |
| "title": "Thriller" | |
| }, | |
| "12": { | |
| "parent": "1", | |
| "title": "Non-Fiction", | |
| "children": ["121", "122", "123"] | |
| }, | |
| "121": { | |
| "parent": "12", | |
| "title": "How To", | |
| "description": "See also: 231, 122." | |
| }, | |
| "122": { | |
| "parent": "12", | |
| "title": "Reference" | |
| }, | |
| "123": { | |
| "parent": "12", | |
| "title": "True Crime" | |
| }, | |
| "13": { | |
| "parent": "1", | |
| "title": "Other" | |
| }, | |
| "2": { | |
| "parent": null, | |
| "title": "Cars", | |
| "children": ["21", "22", "23"] | |
| }, | |
| "21": { | |
| "parent": "2", | |
| "title": "Sedans", | |
| "children": ["211", "212"] | |
| }, | |
| "211": { | |
| "parent": "21", | |
| "title": "Accord" | |
| }, | |
| "212": { | |
| "parent": "21", | |
| "title": "Camry" | |
| }, | |
| "22": { | |
| "parent": "2", | |
| "title": "Trucks" | |
| }, | |
| "23": { | |
| "parent": "2", | |
| "title": "Other", | |
| "children": ["231", "232"] | |
| }, | |
| "231": { | |
| "parent": "21", | |
| "title": "Repair manuals", | |
| "description": "See also: 121." | |
| }, | |
| "232": { | |
| "parent": "21", | |
| "title": "Tools", | |
| "description": "See also: 41." | |
| }, | |
| "3": { | |
| "parent": null, | |
| "title": "Trains", | |
| "children": ["31", "32"] | |
| }, | |
| "31": { | |
| "parent": "3", | |
| "title": "Big ones" | |
| }, | |
| "32": { | |
| "parent": "3", | |
| "title": "Small ones" | |
| }, | |
| "4": { | |
| "parent": null, | |
| "title": "Tools", | |
| "children": ["41", "42", "43"] | |
| }, | |
| "41": { | |
| "parent": "4", | |
| "title": "Automotive", | |
| "children": ["411", "412", "413"] | |
| }, | |
| "411": { | |
| "parent": "41", | |
| "title": "Other", | |
| "children": ["4111", "4112", "4113"] | |
| }, | |
| "4111": { | |
| "parent": "411", | |
| "title": "Widgets", | |
| "children": ["41111", "41112"] | |
| }, | |
| "41111": { | |
| "parent": "4111", | |
| "title": "Wamwozzles" | |
| }, | |
| "41112": { | |
| "parent": "4111", | |
| "title": "Wunkles", | |
| "description": "Check out 41111, too." | |
| }, | |
| "4112": { | |
| "parent": "411", | |
| "title": "Whatchamahoozers" | |
| }, | |
| "4113": { | |
| "parent": "411", | |
| "title": "Beeps" | |
| }, | |
| "412": { | |
| "parent": "41", | |
| "title": "Spanners" | |
| }, | |
| "413": { | |
| "parent": "41", | |
| "title": "Wrenches" | |
| }, | |
| "42": { | |
| "parent": "4", | |
| "title": "Metal" | |
| }, | |
| "43": { | |
| "parent": "4", | |
| "title": "Woodworking" | |
| } | |
| } | |
| } | |
| (function(){ | |
| var nodes = Object.keys(tree.items); | |
| var toAppend = ""; | |
| toAppend += "<select id='level' class='dropdown'> <option value=''></option>"; | |
| for(var j = 0; j < tree.topLevelItems.length; j++){ | |
| toAppend += "<option value='" + tree.topLevelItems[j] + "'>" + tree.items[tree.topLevelItems[j]].title + "</option>"; | |
| } | |
| toAppend += "</select>"; | |
| for(var i = 0; i < nodes.length; i++ ){ | |
| var children = tree.items[nodes[i]].children; | |
| if (children){ | |
| toAppend += "<select id='level" + nodes[i] + "' class='dropdown'> <option value=''></option>"; | |
| for(var j = 0; j < children.length; j++){ | |
| toAppend += "<option value='" + children[j] + "'>" + tree.items[children[j]].title + "</option>"; | |
| } | |
| toAppend += "</select>"; | |
| } | |
| } | |
| $('body').append(toAppend); | |
| var setCategory = function(event){ | |
| var selected = $(event.target).val().split(""); | |
| $('.dropdown').hide(); | |
| $('#level').show(); | |
| for ( var i = 0 ; i <= selected.length; i++ ){ | |
| var dropdown = $("#level" + selected.slice(0,i).join("")); | |
| console.log(dropdown); | |
| dropdown.show(); | |
| } | |
| } | |
| $('.dropdown').on("change", function(event){setCategory(event)}); | |
| $('.dropdown').hide(); | |
| $('#level').show(); | |
| })() |
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