Add more missing methods to iOS ListView

Change-Id: Ifb1edb80c6263f704a6aa1de52752fa469494349

appinventor/components-ios/src/ListView.swift

@@ -90,11 +90,36 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
 
   @objc open var Elements: [AnyObject] {
     get {
+      if _listData.count > 0 {
+        return _listData as [AnyObject]
+      } else {
         return _elements as [AnyObject]
       }
+    }
     set(elements) {
+      _elements = []
+      _listData = []
+      guard !elements.isEmpty else {
+        _view.reloadData()
+        return
+      }
+      if elements.first is YailDictionary {
+        for item in elements {
+          if let row = item as? YailDictionary {
+            if let rowDict = row as? [String:String] {
+              _listData.append(rowDict)
+            }
+          } else if let row = item as? String {
+            _listData.append(["Text1": row, "Text2": "", "Image": ""])
+          } else {
+            // Hmm...
+          }
+        }
+      } else {
         _elements = elements.toStringArray()
-      _automaticHeightConstraint.constant = _elements.isEmpty ? kDefaultTableCellHeight : kDefaultTableCellHeight * CGFloat(_elements.count)
+      }
+      let rows = max(_elements.count, _listData.count)
+      _automaticHeightConstraint.constant = rows == 0 ? kDefaultTableCellHeight : kDefaultTableCellHeight * CGFloat(rows)
       if let searchBar = _view.tableHeaderView as? UISearchBar {
         self.searchBar(searchBar, textDidChange: searchBar.text ?? "")
       } else {
@@ -109,7 +134,6 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
     }
     set(fontTypeface) {
       _fontTypeface = fontTypeface
-        print(_fontTypeface)
       _view.reloadData()
     }
   }
@@ -120,7 +144,6 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
     }
     set(FontTypefaceDetail) {
       _fontTypefaceDetail = FontTypefaceDetail
-      print(_fontTypeface)
       _view.reloadData()
     }
   }
@@ -138,10 +161,6 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
     }
     set(jsonString) {
       do {
-        print("JSON string: \(jsonString)")
-        let jsonObject = try getObjectFromJson(jsonString)
-        print("JSON object: \(jsonObject)")
-
         if let dictionaries = try getObjectFromJson(jsonString) as? [[String: Any]] {
           _listData = dictionaries.compactMap { dictionary in
             var item: [String: String] = [:]
@@ -180,7 +199,6 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
     }
     set(listViewLayoutMode) {
       _listViewLayoutMode = listViewLayoutMode
-      print("ListViewLayout \(ListViewLayout) " )
       _view.reloadData()
     }
   }
@@ -191,7 +209,6 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
     }
     set(orientation) {
       _orientation = orientation
-      print("Orientation \(Orientation)")
       _view.reloadData()
     }
   }
@@ -211,13 +228,11 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
       } else if let index = _listData.firstIndex(where: { $0["Text1"] == selection }) {
         _selectionIndex = Int32(index) + 1
         _selection = selection
-        print("selection index \(_selection)")
         _view.selectRow(at: IndexPath(item: index, section: 0), animated: true, scrollPosition: .none)
       } else {
         _selectionIndex = 0
         _selection = ""
       }
-      print("Selection set: \(_selection)")
     }
   }
 
@@ -334,6 +349,30 @@ open class ListView: ViewComponent, AbstractMethodsForViewComponent,
 
   // MARK: Methods
 
+  @objc open func CreateElement(_ mainText: String, _ detailText: String, _ imageName: String) -> YailDictionary {
+    return [
+      "Text1": mainText,
+      "Text2": detailText,
+      "Image": imageName
+    ] as YailDictionary
+  }
+
+  @objc open func GetDetailText(_ listElement: YailDictionary) -> String {
+    return listElement["Text2"] as? String ?? ""
+  }
+
+  @objc open func GetImageName(_ listElement: YailDictionary) -> String {
+    return listElement["Image"] as? String ?? ""
+  }
+
+  @objc open func GetMainText(_ listElement: YailDictionary) -> String {
+    return listElement["Text1"] as? String ?? ""
+  }
+
+  @objc open func Refresh() {
+    _view.reloadData()
+  }
+
   @objc open func RemoveItemAtIndex(_ index: Int32) {
     if index < 1 || index > max(_listData.count, _elements.count) {
       _container?.form?.dispatchErrorOccurredEvent(self, "RemoveItemAtIndex",

appinventor/components-ios/tests/Unit Tests/components/visible/ListViewTests.swift

@@ -6,14 +6,14 @@
 import XCTest
 @testable import AIComponentKit
 
-class ListViewTests: XCTestCase {
+class ListViewTests: AppInventorTestCase {
 
-  var testForm: ReplForm!
   var testList: ListView!
 
   override func setUp() {
-    testForm = ReplForm()
-    testList = ListView(testForm)
+    super.setUp()
+    testList = ListView(form)
+    XCTAssertTrue(addComponent(testList, named: "ListView1"))
   }
 
   func testSelectionIndex() {
@@ -29,4 +29,71 @@ class ListViewTests: XCTestCase {
     XCTAssertEqual("banana", testList.Selection)
   }
 
+  func testCreateElement() {
+    testList.Elements = [testList.CreateElement("MainText", "DetailText", "Image")]
+    XCTAssertEqual(1, testList.Elements.count)
+    XCTAssertEqual("MainText", testList.GetMainText(YailDictionary(dictionary: testList.Elements[0] as! Dictionary)))
+    XCTAssertEqual("DetailText", testList.GetDetailText(YailDictionary(dictionary: testList.Elements[0] as! Dictionary)))
+    XCTAssertEqual("Image", testList.GetImageName(YailDictionary(dictionary: testList.Elements[0] as! Dictionary)))
+  }
+
+
+  func testBackgroundColor() {
+    testList.BackgroundColor = Color.blue.int32
+    testList.Elements = ["Test"] as [AnyObject]
+    let view = testList.view as! UITableView
+    var cell = testList.tableView(view, cellForRowAt: IndexPath(row: 0, section: 0))
+    XCTAssertNotNil(cell)
+    XCTAssertEqual(Color.blue.uiColor, cell.backgroundColor)
+
+    // Change back to the default (black)
+    testList.BackgroundColor = Color.default.int32
+    XCTAssertEqual(Color.black.int32, testList.BackgroundColor)
+
+    cell = testList.tableView(view, cellForRowAt: IndexPath(row: 0, section: 0))
+    XCTAssertNotNil(cell)
+    XCTAssertEqual(Color.black.uiColor, cell.backgroundColor)
+  }
+
+  func testMixedElements() {
+    testList.Elements = [testList.CreateElement("MainText", "", ""), "Plain String"] as [AnyObject]
+    XCTAssertEqual(2, testList.Elements.count)
+    // The second element should be promoted to a dictionary
+    XCTAssertNotNil(testList.Elements[1] as? Dictionary<String, String>)
+  }
+
+  func testFontTypeface() {
+    testList.FontTypeface = "2"
+    testList.Elements = ["Test"] as [AnyObject]
+    testList.Refresh()
+    let view = testList.view as! UITableView
+    let cell = testList.tableView(view, cellForRowAt: IndexPath(row: 0, section: 0))
+    XCTAssertNotNil(cell)
+    XCTAssertEqual("Times New Roman", cell.textLabel?.font.familyName)
+  }
+
+  func testListData() {
+    testList.ListData = "[{\"Text1\": \"apple\", \"Text2\": \"2.99\", \"Image\": \"apple.jpg\"}]"
+    XCTAssertEqual(1, testList.Elements.count)
+    XCTAssertEqual([["Text1": "apple", "Text2": "2.99", "Image": "apple.jpg"]], testList.Elements as? [[String:String]])
+  }
+
+  func testBadListData() {
+    testList.ListData = "this is not json"
+    XCTAssertEqual(0, testList.Elements.count)
+  }
+
+  // MARK: Events
+
+  func testAfterPicking() {
+    expectToReceiveEvent(on: testList, named: "AfterPicking") { [self] arguments in
+      XCTAssertEqual(2, testList.SelectionIndex)
+      XCTAssertEqual("banana", testList.Selection)
+    }
+    testList.Elements = ["apple", "banana", "cantaloupe"] as [AnyObject]
+    testList.Refresh()
+    let view = testList.view as! UITableView
+    testList.tableView(view, didSelectRowAt: IndexPath(row: 1, section: 0))
+    verify()
+  }
 }