2017-07-09 23:03:03

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「Vue.js: TodoMVCをつくる 05 ー項目のテキストを再編集できるようにする」

Todoリストにすでに入力した項目のテキストをダブルクリックで書き替え、[return]/[Enter]キーで確定、[esc]キーでキャンセルできるようにした。

Creation of "TodoMVC Example" is divided into five steps and this code is final.

Vue.js: TodoMVC part 05

// forked from FumioNonaka's "Vue.js: TodoMVC part 04" http://jsdo.it/FumioNonaka/KpRM
var STORAGE_KEY = 'todos-vuejs-2.0';
var todoStorage = {
	fetch: function() {
		var todos = JSON.parse(localStorage.getItem(STORAGE_KEY) || '[]');
		todos.forEach(function(todo, index) {
			todo.id = index;
		});
		todoStorage.uid = todos.length;
		return todos;
	},
	save: function(todos) {
		localStorage.setItem(STORAGE_KEY, JSON.stringify(todos));
	}
};
var filters = {
	all: function(todos) {
		return todos;
	},
	active: function(todos) {
		return todos.filter(function(todo) {
			return !todo.completed;
		});
	},
	completed: function(todos) {
		return todos.filter(function(todo) {
			return todo.completed;
		});
	}
};
var app = new Vue({
	data: {
		todos: todoStorage.fetch(),
		newTodo: '',
		editedTodo: null,
		visibility: 'all'
	},
	watch: {
		todos: {
			handler: function(todos) {
				todoStorage.save(todos);
			},
			deep: true
		}
	},
	computed: {
		filteredTodos: function() {
			return filters[this.visibility](this.todos);
		},
		remaining: function() {
			var todos = filters.active(this.todos);
			return todos.length;
		},
		allDone: {
			get: function() {
				return this.remaining === 0;
			},
			set: function(value) {
				this.todos.forEach(function(todo) {
					todo.completed = value;
				});
			}
		}
	},
	filters: {
		pluralize: function(n) {
			return n === 1 ? 'item' : 'items';
		}
	},
	methods: {
		addTodo: function() {
			var value = this.newTodo && this.newTodo.trim();
			if (!value) {
				return;
			}
			this.todos.push({
				id: todoStorage.uid++,
				title: value,
				completed: false
			});
			this.newTodo = '';
		},
		removeTodo: function(todo) {
			this.todos.splice(this.todos.indexOf(todo), 1);
		},
		editTodo: function(todo) {
			this.beforeEditCache = todo.title;
			this.editedTodo = todo;
		},
		doneEdit: function(todo) {
			if (!this.editedTodo) {
				return;
			}
			this.editedTodo = null;
			var title = todo.title.trim();
			if (title) {
				todo.title = title;
			} else {
				this.removeTodo(todo);
			}
		},
		cancelEdit: function(todo) {
			this.editedTodo = null;
			todo.title = this.beforeEditCache;
		},
		removeCompleted: function() {
			this.todos = filters.active(this.todos);
		}
	},
	directives: {
		'todo-focus': function(element, binding) {
			if (binding.value) {
				element.focus();
			}
		}
	}
});
function onHashChange() {
	var visibility = window.location.hash.replace(/#\/?/, '');
	if (filters[visibility]) {
		app.visibility = visibility;
	} else {
		window.location.hash = '';
		app.visibility = 'all';
	}
}
window.addEventListener('hashchange', onHashChange);
onHashChange();
app.$mount('.todoapp');

Vue.js: TodoMVC part 05

###「[Vue.js: TodoMVCをつくる 05 ー項目のテキストを再編集できるようにする](http://fumiononaka.com/Business/html5/FN1707004.html)」 Todoリストにすでに入力した項目のテキストをダブルクリックで書き替え、[return]/[Enter]キーで確定、[esc]キーでキャンセルできるようにした。 ___ Creation of "[TodoMVC Example](https://vuejs.org/v2/examples/todomvc.html)" is divided into five steps and this code is final. * [part 01](http://jsdo.it/FumioNonaka/wro8) * [part 02](http://jsdo.it/FumioNonaka/8eUF) * [part 03](http://jsdo.it/FumioNonaka/I78z) * [part 04](http://jsdo.it/FumioNonaka/KpRM)// forked from FumioNonaka's "Vue.js: TodoMVC part 04" http://jsdo.it/FumioNonaka/KpRM var STORAGE_KEY = 'todos-vuejs-2.0'; var todoStorage = { fetch: function() { var todos = JSON.parse(localStorage.getItem(STORAGE_KEY) || '[]'); todos.forEach(function(todo, index) { todo.id = index; }); todoStorage.uid = todos.length; return todos; }, save: function(todos) { localStorage.setItem(STORAGE_KEY, JSON.stringify(todos)); } }; var filters = { all: function(todos) { return todos; }, active: function(todos) { return todos.filter(function(todo) { return !todo.completed; }); }, completed: function(todos) { return todos.filter(function(todo) { return todo.completed; }); } }; var app = new Vue({ data: { todos: todoStorage.fetch(), newTodo: '', editedTodo: null, visibility: 'all' }, watch: { todos: { handler: function(todos) { todoStorage.save(todos); }, deep: true } }, computed: { filteredTodos: function() { return filters[this.visibility](this.todos); }, remaining: function() { var todos = filters.active(this.todos); return todos.length; }, allDone: { get: function() { return this.remaining === 0; }, set: function(value) { this.todos.forEach(function(todo) { todo.completed = value; }); } } }, filters: { pluralize: function(n) { return n === 1 ? 'item' : 'items'; } }, methods: { addTodo: function() { var value = this.newTodo && this.newTodo.trim(); if (!value) { return; } this.todos.push({ id: todoStorage.uid++, title: value, completed: false }); this.newTodo = ''; }, removeTodo: function(todo) { this.todos.splice(this.todos.indexOf(todo), 1); }, editTodo: function(todo) { this.beforeEditCache = todo.title; this.editedTodo = todo; }, doneEdit: function(todo) { if (!this.editedTodo) { return; } this.editedTodo = null; var title = todo.title.trim(); if (title) { todo.title = title; } else { this.removeTodo(todo); } }, cancelEdit: function(todo) { this.editedTodo = null; todo.title = this.beforeEditCache; }, removeCompleted: function() { this.todos = filters.active(this.todos); } }, directives: { 'todo-focus': function(element, binding) { if (binding.value) { element.focus(); } } } }); function onHashChange() { var visibility = window.location.hash.replace(/#\/?/, ''); if (filters[visibility]) { app.visibility = visibility; } else { window.location.hash = ''; app.visibility = 'all'; } } window.addEventListener('hashchange', onHashChange); onHashChange(); app.$mount('.todoapp'); <link href="https://unpkg.com/todomvc-app-css@2.0.6/index.css" rel="stylesheet"> <script src="https://unpkg.com/vue/dist/vue.js"></script> <section class="todoapp"> <header class="header"> <h1>todos</h1> <input class="new-todo" autofocus autocomplete="off" placeholder="What needs to be done?" v-model="newTodo" @keydown.enter="addTodo"> </header> <section class="main" v-show="todos.length" v-cloak> <input class="toggle-all" type="checkbox" v-model="allDone"> <ul class="todo-list"> <li v-for="todo in filteredTodos" class="todo" :key="todo.id" :class="{completed: todo.completed, editing: todo == editedTodo}"> <div class="view"> <input class="toggle" type="checkbox" v-model="todo.completed"> <label @dblclick="editTodo(todo)">{{todo.title}}</label> <button class="destroy" @click="removeTodo(todo)"></button> </div> <input class="edit" type="text" v-model="todo.title" v-todo-focus="todo == editedTodo" @keydown.enter="doneEdit(todo)" @keydown.esc="cancelEdit(todo)" @blur="doneEdit(todo)"> </li> </ul> </section> <footer class="footer" v-show="todos.length" v-cloak> <span class="todo-count"> <strong>{{remaining}}</strong> {{remaining | pluralize}} left </span> <ul class="filters"> <li><a href="#/all" :class="{selected: visibility == 'all'}">All</a></li> <li><a href="#/active" :class="{selected: visibility == 'active'}">Active</a></li> <li><a href="#/completed" :class="{selected: visibility == 'completed'}">Completed</a></li> </ul> <button class="clear-completed" @click="removeCompleted" v-show="todos.length > remaining"> Clear completed </button> </footer> </section> [v-cloak] { display: none; }

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Vue.js: TodoMVC part 05

「Vue.js: TodoMVCをつくる 05 ー項目のテキストを再編集できるようにする」

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「Vue.js: TodoMVCをつくる 05 ー項目のテキストを再編集できるようにする」