前回のサンプルではModelとView辺がうまく分離できていなかったので修正してみた
Backbone.Modelに状態を保存し、イベントを拾って、Undoなどの処理を行うようにしてみた
- app.ts
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | /// <reference path="jquery.d.ts" /> /// <reference path="backbone.d.ts" /> /// <reference path="backbone.undo.d.ts" /> /// <reference path="underscore.d.ts" /> module sample { var undoButton = $("#undo"); var redoButton = $("#redo"); var addButton = $("#add"); var updateNameButton = $("#update_name"); var updateValueButton = $("#update_value"); export class App { private listview: ItemListView; private appModel: AppModel; constructor() { this.appModel = new AppModel(); this.listview = new ItemListView({ "collection":this.appModel.get("collection") }); var self = this; undoButton.click(function () { console.log("undoButton.click"); self.appModel.set({ "undoButtonClicked": true }); }); redoButton.click(function () { console.log("redoButton.click"); self.appModel.set({ "redoButtonClicked": true }); }); addButton.click(function () { console.log("addButton.click"); self.appModel.set({ "addButtonClicked": true }); }); updateNameButton.click(function () { console.log("updateNameButton.click"); self.appModel.set({ "updateNameButtonClicked": true }); }); updateValueButton.click(function () { console.log("updateValueButton.click"); self.appModel.set({ "updateValueButtonClicked": true }); }); } draw(): void { this.listview.render(); } } class AppModel extends Backbone.Model { private undoHandler: UndoHandler; constructor(options?) { super(options); this.undoHandler = new UndoHandler(this.get("collection")); this.bind("change", this.change); } defaults() { return { collection: new ItemCollection([ new ItemModel({ "name": "0", "value": "0" }), ]), undoButtonClicked: false, redoButtonClicked: false, addButtonClicked: false, updateNameButtonClicked: false, updateValueButtonClicked:false } } change(): void { if (this.get("undoButtonClicked")) { this.undoHandler.undo(); this.set({ "undoButtonClicked": false }); } if (this.get("redoButtonClicked")) { this.undoHandler.redo(); this.set({ "redoButtonClicked": false }); } if (this.get("addButtonClicked")) { this.get("collection").add(new ItemModel({ "name": "0", "value": "0" })); this.set({ "addButtonClicked": false }); } if (this.get("updateNameButtonClicked")) { this.get("collection").forEach(function (item) { item.set("name", _.random(100).toString()); }); this.set({ "updateNameButtonClicked": false }); } if (this.get("updateValueButtonClicked")) { this.get("collection").forEach(function (item) { item.set("value", _.random(100).toString()); }); this.set({ "updateValueButtonClicked": false }); } console.log("AppModel.change"); } } class UndoHandler { private manager: Backbone.UndoManager; constructor(collections:Backbone.Collection<Backbone.Model>) { var self = this; self.manager = new Backbone.UndoManager({ register: collections, track: true }); self.manager.removeUndoType("change:isChanging"); self.manager.addUndoType("change:isChanging", { "on": function (model, isChanging, options) { console.log("manager.addUndoType.on"); }, "undo": function (model, before, after, options) { console.log("manager.addUndoType.undo"); model.set(before) }, "redo": function (model, before, after, options) { console.log("manager.addUndoType.redo"); model.set(after) } }); self.manager.on("all", function (type) { console.log("all.type:" + type); switch (type) { case "undo": { console.log("undo"); break; } case "redo": { console.log("redo"); break; } } }); self.manager.trigger("undo redo"); self.manager.stack.on("add", function () { console.log("stack.on.add"); }); } undo(): void{ this.manager.undo(true); } redo(): void { this.manager.redo(true); } } class ItemModel extends Backbone.Model { constructor(options?) { if (options) { if (options.name) this.set({ "name": options.name }, { "validate": true }); if (options.value) this.set({ "value": options.value }, { "validate": true }); } super(options); this.bind("change", this.change); } change(): void { console.log("ItemModel.change:name="+this.get("name")+",value="+this.get("value")); } defaults() { return { "id": _.uniqueId(), "name": "", "value":"" } } validate(attrs) { if (!attrs.name || _.isEmpty(attrs.name)) { return "name must not be empty"; } if (!attrs.value || _.isEmpty(attrs.value)) { return "value must not be empty"; } } } class ItemCollection extends Backbone.Collection<ItemModel>{ constructor(options) { super(options); } } class ItemView extends Backbone.View<ItemModel> { template: (data: any) => string; constructor(options?) { var html = $("#template-item").html(); this.template = _.template(html); this.events = <any>{ "click": "onclick", "change":"onchange" }; super(options); this.model.bind("change", this.render, this); } private onclick() { console.log("ItemView.onclick"); } private change() { console.log("ItemView.onchange"); this.render(); } render(): ItemView { var html = this.template(this.model.toJSON()); $(this.el).html(html); return this; } } class ItemListView extends Backbone.View<ItemModel>{ constructor(options?) { this.el = "#item-list"; if (options) { if (options.collection) this.collection = options.collection; } super(options); this.listenTo(this.collection, 'add', this.render); this.listenTo(this.collection, 'remove', this.render); this.listenTo(this.collection, 'reset', this.render); } render(): ItemListView { var el = $(this.el); el.empty(); this.collection.forEach(item=> { console.log("ItemListView.render"); var view=new ItemView({ "model": item }).render(); el.append(view.el); }); return this; } } } new sample.App().draw(); |
- index.html
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | <!DOCTYPE html> <html lang="ja"> <head> <meta charset="utf-8" /> <title></title> </head> <body> <div id="item-list"></div> <br /> <br /> <button id="update_name">update_name</button> <button id="update_value">update_value</button> <button id="add">add</button> <br /> <button id="undo">undo</button> <button id="redo">redo</button> <script id="template-item" type="text/html"> <button type="button">name=<%= name %>,value=<%= value %></button> </script> <script src="jquery-1.10.2.js"></script> <script src="underscore.js"></script> <script src="backbone.js"></script> <script src="backbone.undo.js"></script> <script src="app.js"></script> </body> </html> |
AppModelクラスが状態を保存している。このBackboneModelに対し、各マウスイベントで発生したClickイベントの関数からModelに対し値をセット。Backboneのchangeイベントが発生するのでそれを拾って処理を行う感じ
Backboneをこのように使うのかどうかは不明。。自己流です