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Copy pathsplit-flap.js
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390 lines (351 loc) · 12.4 KB
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// Home Sweet Global Namespace
var sf = {};
// Namespace for objects defined and used locally in templates
sf.local = {};
// Namespace for plugin-specific javascript,
// to be loaded later in separate files
sf.plugins = {};
/* ********************************************************************* */
/* HOUSEKEEPING */
Array.prototype.rotate = (function() {
var unshift = Array.prototype.unshift,
splice = Array.prototype.splice;
return function(count) {
var len = this.length >>> 0,
count = count >> 0;
unshift.apply(this, splice.call(this, count % len, len));
return this;
};
})();
sf.util = {
// Function splits string into array of substrings of len or less.
// Splits happen at the last space.
splitString: function(str,len){
var arr = [];
var words = str.split(" ");
var line = words[0];
for(var i=1;i<words.length;i++){
if(line.length + words[i].length + 1 < len + 1){
line = line + " " + words[i];
} else {
arr.push(line);
line = words[i];
}
}
// push the last line into the array
arr.push(line);
return arr;
},
// Methods for getting query parameters out of the URL
getUrlParams: function(){
var vars = [], param;
var params = window.location.href.slice(window.location.href.indexOf('?') + 1, window.location.href.indexOf('#')).split('&');
for(var i = 0; i < params.length; i++) {
param = params[i].split('=');
vars.push(param[0]);
vars[param[0]] = param[1];
}
return vars;
},
getUrlParam: function(name){
return $.getUrlParams()[name];
}
};
/* ********************************************************************* */
/* BACKBONE COLLECTIONS, MODELS AND VIEWS */
// This View generates the empty markup for the rows
// It is only called once, at document.ready()
// By default it sets 12 rows. Set sf.options.numRows to change this.
sf.Board = Backbone.View.extend({
render: function() {
this.el.find(".row").remove();
for(var i=0;i<(sf.options.numRows);i++){
this.el.append(this.template());
};
this.el.find(".row").each(function(){
sf.display.initRow($(this));
});
return this;
}
});
sf.board = {
// Generate the markup for and initialize a blank board
init: function(options){
var board = new sf.Board;
board.el = options.container;
board.template = _.template(options.template.html());
sf.options.numRows = sf.options.numRows ? sf.options.numRows : 12; // default 12 rows
board.render();
},
// Utility method to clear the board.
// It goes through every group in every row,
// calling loadGroup() with an empty string.
// When it gets to the last row it reloads the page.
// NOTE: Use this to avoid memory leaks -- call it every hour or so.
clear: function(container) {
var rows = container.find(".row"),
i=0;
var loop = function() {
setTimeout(function () {
var groups = $(rows[i]).find(".group");
groups.each(function(){
sf.display.loadGroup(" ",$(this));
})
i++;
if (i < rows.length) {
loop(i);
} else {
// give it 10 seconds to finish clearing
// the board, then reload the page.
setTimeout(function(){
window.location.reload();
}, 10*1000)
}
}, 500);
};
loop();
}
};
// This Collection is used to hold the datset for this board.
// If there's more results than rows, it will page the results
// at options.pageInterval.
sf.Items = Backbone.Collection.extend({
update: function(options){
this.fetch({
success: function(response){
var results = response.toJSON(),
maxResults = options.maxResults ? options.maxResults : 24,
numResults = results.length <= maxResults ? results.length : maxResults,
numRows = options.numRows,
numPages = Math.ceil(numResults/numRows),
pageInterval = options.pageInterval ? options.pageInterval : 30000,
i=0,page=0;
// Load initial results
sf.display.loadSequentially(results.slice(i,i+numRows),options.container);
// console.log("results at page",page,"index",i,results.slice(i,i+numRows));
i += numRows;
page++;
// This recursive function loops through the results by page
loop = function() {
setTimeout(function () {
sf.display.loadSequentially(results.slice(i,i+numRows),options.container);
// console.log("results at page",page,"index",i,results.slice(i,i+numRows));
i += numRows;
page++;
if (page < numPages) {
loop(i);
}
}, pageInterval);
};
loop();
}
});
},
parse: function(json){
return(sf.plugins[sf.options.plugin].formatData(json)); // normalize this data
}
});
sf.items = {
// Get the data for a board and load it
init: function(options) {
// create the Collection
items = new sf.Items; // NOTE GLOBAL!
items.url = sf.plugins[options.plugin].url(options);
// check if we're using jsonp
if(sf.plugins[options.plugin].dataType ==="jsonp"){
items.sync = function(method, model, options){
options.timeout = 10000;
options.dataType = "jsonp";
return Backbone.sync(method, model, options);
};
}
// pick up any sorting options
if(options.order && options.sort){
items.comparator = function(item){
if(options.order === "desc"){
return -item.get(options.sort);
} else {
return item.get(options.sort);
}
};
}
},
load: function(options){
// Set a count to keep track of how many times the page has been refreshed.
// When count has reached options.pageReloadAt, clear the board and reload the window.
var count = 1;
var pageReloadAt = options.pageReloadAt ? options.pageReloadAt : 120;
// Get the initial data and load the chart
items.update(options);
// If user has specified a refresh interval, setInterval()
if(options.refreshInterval){
setInterval(function(){
if(count < pageReloadAt){
items.update(options);
count = count + 1;
} else {
sf.board.clear(options.container);
}
}, options.refreshInterval);
}
}
},
/* ********************************************************************* */
/* DISPLAY METHODS */
sf.display = {
// DRUM ARRAYS
// These contain the character sets for each drum. Each position represents
// a character and when prepended by "c" gives the class name which will
// be applied to display that character.
FullDrum: function() {
this.order = [' ','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','0','1','2','3','4','5','6','7','8','9','.',',','?','!','/','\'','+','-',':','@','#'];
},
CharDrum: function() {
this.order = [' ','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','.',','];
},
NumDrum: function() {
this.order = [' ','0','1','2','3','4','5','6','7','8','9','.',','];
},
ImageDrum: function() {
this.order = []; // Intentionally empty here. Override in plugins/<plugin_name>/custom.js
},
initRow: function(row) { // expects the jQuery DOM object
// For each character, construct a drum array and
// attach that array to the element's .data() object
row.find("span").each(function() {
var parent = $(this).closest("div");
if(parent.hasClass("number")){
var drum = new sf.display.NumDrum(); // Numbers only
} else if(parent.hasClass("character")) {
var drum = new sf.display.CharDrum(); // Characters only
} else if(parent.hasClass("image")) {
var drum = new sf.display.ImageDrum(); // Images
} else {
var drum = new sf.display.FullDrum(); // The full set
}
$(this).data("order", drum.order);
// Finally, set each character to a space.
sf.display.change($(this), " ");
});
},
loadSequentially: function() {
var input = arguments[0],
container = arguments[1],
rows = container.find(".row"),
i=0,
stagger = sf.options.stagger ? sf.options.stagger : 1000;
var loop = function() {
setTimeout(function () {
if(input[i]) {
sf.display.loadRow(input[i],$(rows[i]));
}
i++;
if (i < rows.length) {
loop(i);
}
}, stagger);
};
loop();
},
loadRow: function() {
var input = arguments[0],
row = arguments[1], // the row object
key,group;
// load the keys array into the .[key] groups
for(key in input) {
if(input.hasOwnProperty(key)){
group = row.find("."+key);
if(group.length > 0) {
sf.display.loadGroup(input[key], group);
// put that value into that group's data store
group.data("contents",input[key]);
}
}
}
},
loadGroup: function() {
// load a string into a group of display elements
var input = arguments[0], // the input (which may be a string or a int)
input = input+"", // force it into a string
target = arguments[1], // the group object
elements = target.find("span").closest("div"), // may have separators, so check for spans
strLen = elements.size(),
i, characters;
// ###################################
// STATUS INDICATORS
// Add the class "on" to the correct element
if(target.hasClass("status")) {
target.find("div").removeClass("on");
target.find(".s"+input).addClass("on");
// ###################################
// IMAGES
// Only one display element--no need to iterate
} else if(target.find(".image").length > 0){
sf.display.change(target.find("span"), input, false);
// ###################################
// NORMAL CHARACTERS
// otherwise, this group is composed of split-flap character or number elements
} else {
input = input.toUpperCase();
// get individual characters and pad the array
// with spaces (to clear any existing characters)
characters = input.split("");
for(i=0;i<strLen;i++) {
if(typeof(characters[i]) === 'undefined') {
characters[i] = " ";
}
}
// trim the array to the number of display elements
characters = characters.slice(0,strLen);
// assign them to the display elements
for(var i=0;i<characters.length;i++) {
// TODO: is there a more efficient way to do this?
sf.display.change($(elements[i]).find("span"), characters[i], true);
}
}
},
change: function() {
var container = arguments[0],
c = arguments[1], // the new character
isChar = arguments[2], // true if this is an character (not an image)
index, i, j;
// get the curent order of the display element's drum
var values = container.data("order");
// how many times do we need to increment the drum?
index = values.indexOf(c);
// increment the drum
for(i=0;i<index;i++) {
sf.display.show(container, (values[i + 1]), isChar);
}
// rotate the dom element's stored array to the new order for next time
container.data("order", values.rotate(index));
},
show: function() {
var container = arguments[0],
i = arguments[1],
isChar = arguments[2],
c;
c = isChar ? "c"+(i) : (i); // character class names are preceded by "c"
// punctuation has special class names
// TODO: can we be more efficient here? This method gets called a lot!
switch(i) {
case " ": c = "csp"; break;
case ".": c = "cper"; break;
case ",": c = "ccom"; break;
case "?": c = "cque"; break;
case "!": c = "cexc"; break;
case "/": c = "csla"; break;
case "'": c = "capo"; break;
case "+": c = "cplu"; break;
case "-": c = "cmin"; break;
case "↑": c = "cup"; break;
case "↓": c = "cdn"; break;
case "%": c = "cpct"; break;
}
container.fadeOut(50, function(){
container.removeClass().addClass(c);
}).fadeIn(50);
}
};
/* END DISPLAY METHODS */
/* ********************************************************************* */