Changing redraw strategy while handling input events in order to avoid focus

issues.

Fix style issues: missing spaces.

Fix avoid double deletion when handling empty input and the following blur event.

examples/mithril/js/controllers/todo.js

@@ -8,7 +8,7 @@ app.controller = function () {
 	this.list = app.storage.get();
 
 	// Update with props
-	this.list = this.list.map(function(item) {
+	this.list = this.list.map(function (item) {
 		return new app.Todo(item);
 	});
 
@@ -53,6 +53,10 @@ app.controller = function () {
 	};
 
 	this.doneEditing = function (todo, index) {
+		if (!todo.editing()) {
+			return;
+		}
+
 		todo.editing(false);
 		todo.title(todo.title().trim());
 		if (!todo.title()) {

examples/mithril/js/views/main-view.js

@@ -5,15 +5,18 @@ var app = app || {};
 // View utility
 app.watchInput = function (onenter, onescape) {
 	return function (e) {
+		m.redraw.strategy('none');
 		if (e.keyCode === app.ENTER_KEY) {
 			onenter();
+			m.redraw.strategy('diff');
 		} else if (e.keyCode === app.ESC_KEY) {
 			onescape();
+			m.redraw.strategy('diff');
 		}
 	};
 };
 
-app.view = (function() {
+app.view = (function () {
 	var focused = false;
 
 	return function (ctrl) {
@@ -63,13 +66,17 @@ app.view = (function() {
 								})
 							]), m('input.edit', {
 								value: task.title(),
-								onkeyup: app.watchInput(ctrl.doneEditing.bind(ctrl, task, index),
-									ctrl.cancelEditing.bind(ctrl, task)),
-								oninput: m.withAttr('value', task.title),
+								onkeyup: app.watchInput(
+									ctrl.doneEditing.bind(ctrl, task, index),
+									ctrl.cancelEditing.bind(ctrl, task)
+								),
+								oninput: m.withAttr('value', function (value) {
+									m.redraw.strategy('none');
+									task.title(value);
+								}),
 								config: function (element) {
 									if (task.editing()) {
 										element.focus();
-										element.selectionStart = element.value.length;
 									}
 								},
 								onblur: ctrl.doneEditing.bind(ctrl, task, index)