151 lines
4.6 KiB
JavaScript
151 lines
4.6 KiB
JavaScript
assertion type todo(id, title, completed);
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message type deleteTodo(id);
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assertion type show(completed);
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/*
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To Do (ho ho ho)
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spec is at: https://github.com/tastejs/todomvc/blob/master/app-spec.md
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- file layout?
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- README
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- pattern the HTML more explicitly on the given template, keep changes to a minimum
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- code style https://github.com/tastejs/todomvc/blob/master/contributing.md#code-style
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- no todos: make sure #main and #footer are hidden
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- mark all as complete/incomplete; make sure it is only ever checked when all the todos are checked
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- count of active todos; pluralize correctly; format correctly
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- hide "clear completed" button when no completed todos exist
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- persist to localStorage; use correct keys and name.
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- routing: spec requires that filtering be done "on a model level";
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we, by using "hidden" class, are kind of partly doing it on a view
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level. We could either continue to do this, or switch to a proper
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model level approach, but then we'd lose stability of ordering!
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*/
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var ESCAPE_KEY_CODE = 27;
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var ENTER_KEY_CODE = 13;
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function getTemplate(id) {
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return document.getElementById(id).innerHTML;
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}
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var nextId = 0;
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function addTodo(title) {
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title = title.trim();
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if (!title) return;
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actor {
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this.id = nextId++;
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this.ui = new Syndicate.UI.Anchor();
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this.title = title;
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this.completed = false;
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this.editing = false;
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this.visible = false;
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react {
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assert todo(this.id, this.title, this.completed);
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during show(this.completed) {
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do { this.visible = true; }
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finally { this.visible = false; }
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}
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assert this.ui.html('.todo-list',
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Mustache.render(getTemplate(this.editing
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? 'todo-list-item-edit-template'
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: 'todo-list-item-view-template'),
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{
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completed_class: this.completed ? "completed" : "",
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hidden_class: this.visible ? "" : "hidden",
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id: this.id,
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checked: this.completed ? "checked" : "",
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title: this.title
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}));
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on message this.ui.event('.toggle', 'change', $e) {
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this.completed = e.target.checked;
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}
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on message this.ui.event('.destroy', 'click', _) {
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:: deleteTodo(this.id);
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}
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on message this.ui.event('label', 'dblclick', _) {
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var self = this;
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this.editing = true;
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focusMe(); // TODO this is gross
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function focusMe() {
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setTimeout(function () {
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var q = 'li[data-id="'+self.id+'"] input.edit';
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var n = document.querySelector(q);
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if (!n) { return focusMe(); }
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n.focus();
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n.setSelectionRange(n.value.length, n.value.length);
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}, 0);
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}
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}
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on message this.ui.event('input.edit', 'keyup', $e) {
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if (e.keyCode === ESCAPE_KEY_CODE || e.keyCode === ENTER_KEY_CODE) {
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this.editing = false;
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}
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}
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on message this.ui.event('input.edit', 'blur', $e) {
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this.editing = false;
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}
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on message this.ui.event('input.edit', 'change', $e) {
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this.title = e.target.value.trim();
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this.editing = false;
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if (!this.title) :: deleteTodo(this.id);
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}
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} until {
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case message deleteTodo(this.id);
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}
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}
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}
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ground dataspace G {
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Syndicate.UI.spawnUIDriver();
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actor {
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react {
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on message Syndicate.UI.globalEvent('.new-todo', 'change', $e) {
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addTodo(e.target.value);
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e.target.value = "";
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}
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}
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}
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actor {
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react {
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on asserted Syndicate.UI.locationHash($hash) {
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// TODO this is a bit icky too
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var ns = document.querySelectorAll('ul.filters > li > a');
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for (var i = 0; i < ns.length; i++) { ns[i].className = ''; }
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var n = document.querySelector('ul.filters > li > a[href="#'+hash+'"]');
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n.className = 'selected';
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}
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during Syndicate.UI.locationHash('/') {
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assert show(true);
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assert show(false);
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}
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during Syndicate.UI.locationHash('/active') {
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assert show(false);
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}
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during Syndicate.UI.locationHash('/completed') {
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assert show(true);
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}
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}
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}
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addTodo('Buy milk');
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addTodo('Buy bread');
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addTodo('Finish PhD');
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}
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G.dataspace.setOnStateChange(function (mux, patch) {
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document.getElementById("ds-state").innerText = Syndicate.prettyTrie(mux.routingTable);
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});
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