From 7aa034ce2386d93a280a5770821382aae835f790 Mon Sep 17 00:00:00 2001
From: Victor Woeltjen <victor.woeltjen@nasa.gov>
Date: Thu, 26 May 2016 16:05:38 -0700
Subject: [PATCH] Add todo tutorial

---
 tutorials/todo/res/templates/todo.html        | 29 ++++++
 .../todo/src/controllers/TodoController.js    | 97 +++++++++++++++++++
 2 files changed, 126 insertions(+)
 create mode 100644 tutorials/todo/res/templates/todo.html
 create mode 100644 tutorials/todo/src/controllers/TodoController.js

diff --git a/tutorials/todo/res/templates/todo.html b/tutorials/todo/res/templates/todo.html
new file mode 100644
index 0000000000..68ea575091
--- /dev/null
+++ b/tutorials/todo/res/templates/todo.html
@@ -0,0 +1,29 @@
+<div ng-controller="TodoController" class="example-todo">
+    <div class="example-button-group">
+        <a ng-class="{ selected: checkVisibility(true) }"
+           ng-click="setVisibility(true)">All</a>
+        <a ng-class="{ selected: checkVisibility(false, false) }"
+           ng-click="setVisibility(false, false)">Incomplete</a>
+        <a ng-class="{ selected: checkVisibility(false, true) }"
+           ng-click="setVisibility(false, true)">Complete</a>
+    </div>
+
+    <ul>
+        <li ng-repeat="task in model.tasks"
+            ng-class="{ 'example-task-completed': task.completed }"
+            ng-if="showTask(task)">
+
+            <input type="checkbox"
+                   ng-checked="task.completed"
+                   ng-click="toggleCompletion($index)">
+            <span ng-click="selectTask($index)"
+                  ng-class="{ selected: isSelected($index) }"
+                  class="example-task-description">
+                {{task.description}}
+            </span>
+        </li>
+    </ul>
+    <div ng-if="model.tasks.length < 1" class="example-message">
+        There are no tasks to show.
+    </div>
+</div>
diff --git a/tutorials/todo/src/controllers/TodoController.js b/tutorials/todo/src/controllers/TodoController.js
new file mode 100644
index 0000000000..77e509f0b7
--- /dev/null
+++ b/tutorials/todo/src/controllers/TodoController.js
@@ -0,0 +1,97 @@
+define(function () {
+    // Form to display when adding new tasks
+    var NEW_TASK_FORM = {
+        name: "Add a Task",
+        sections: [{
+            rows: [{
+                name: 'Description',
+                key: 'description',
+                control: 'textfield',
+                required: true
+            }]
+        }]
+    };
+
+    function TodoController($scope, dialogService) {
+        var showAll = true,
+            showCompleted;
+
+        // Persist changes made to a domain object's model
+        function persist() {
+            var persistence =
+                $scope.domainObject.getCapability('persistence');
+            return persistence && persistence.persist();
+        }
+
+        // Remove a task
+        function removeTaskAtIndex(taskIndex) {
+            $scope.domainObject.useCapability('mutation', function (model) {
+                model.tasks.splice(taskIndex, 1);
+            });
+            persist();
+        }
+
+        // Add a task
+        function addNewTask(task) {
+            $scope.domainObject.useCapability('mutation', function (model) {
+                model.tasks.push(task);
+            });
+            persist();
+        }
+
+        // Change which tasks are visible
+        $scope.setVisibility = function (all, completed) {
+            showAll = all;
+            showCompleted = completed;
+        };
+
+        +       // Check if current visibility settings match
+            +       $scope.checkVisibility = function (all, completed) {
+            +           return showAll ? all : (completed === showCompleted);
+            +       };
+
+        // Toggle the completion state of a task
+        $scope.toggleCompletion = function (taskIndex) {
+            $scope.domainObject.useCapability('mutation', function (model) {
+                var task = model.tasks[taskIndex];
+                task.completed = !task.completed;
+            });
+            persist();
+        };
+
+        // Check whether a task should be visible
+        $scope.showTask = function (task) {
+            return showAll || (showCompleted === !!(task.completed));
+        };
+
+        // Handle selection state in edit mode
+        if ($scope.selection) {
+            // Expose the ability to select tasks
+            $scope.selectTask = function (taskIndex) {
+                $scope.selection.select({
+                    removeTask: function () {
+                        removeTaskAtIndex(taskIndex);
+                        $scope.selection.deselect();
+                    },
+                    taskIndex: taskIndex
+                });
+            };
+
+            // Expose a check for current selection state
+            $scope.isSelected = function (taskIndex) {
+                return ($scope.selection.get() || {}).taskIndex ===
+                    taskIndex;
+            };
+
+            // Expose a view-level selection proxy
+            $scope.selection.proxy({
+                addTask: function () {
+                    dialogService.getUserInput(NEW_TASK_FORM, {})
+                        .then(addNewTask);
+                }
+            });
+        }
+    }
+
+    return TodoController;
+});