Added TableView cell/row selection mode

CHANGELOG.md

@@ -1,3 +1,7 @@
+# v0.5.0
+
+* Added HasFocus function to the View interface
+
 # v0.4.0
 
 * Added SetTitle and SetTitleColor function to the Session interface

app_scripts.js

@@ -615,11 +615,12 @@ function selectDropDownListItem(elementId, number) {
 
 function listItemClickEvent(element, event) {
 	event.stopPropagation();
+	
 	var selected = false;
 	if (element.classList) {
-		selected = (element.classList.contains("ruiListItemFocused") || element.classList.contains("ruiListItemSelected"));
+		const focusStyle = getListFocusedItemStyle(element);
-	} else {
+		const blurStyle = getListSelectedItemStyle(element);
-		selected = element.className.indexOf("ruiListItemFocused") >= 0 || element.className.indexOf("ruiListItemSelected") >= 0;
+		selected = (element.classList.contains(focusStyle) || element.classList.contains(blurStyle));
 	} 
 
 	var list = element.parentNode.parentNode
@@ -640,18 +641,27 @@ function getListItemNumber(itemId) {
 	}
 }
 
+function getStyleAttribute(element, attr, defValue) {
+	var result = element.getAttribute(attr);
+	if (result) {
+		return result;
+	}
+	return defValue;
+}
+
+function getListFocusedItemStyle(element) {
+	return getStyleAttribute(element, "data-focusitemstyle", "ruiListItemFocused");
+}
+
+function getListSelectedItemStyle(element) {
+	return getStyleAttribute(element, "data-bluritemstyle", "ruiListItemSelected");
+}
+
 function selectListItem(element, item, needSendMessage) {
 	var currentId = element.getAttribute("data-current");
 	var message;
-	var focusStyle = element.getAttribute("data-focusitemstyle");
+	const focusStyle = getListFocusedItemStyle(element);
-	var blurStyle = element.getAttribute("data-bluritemstyle");
+	const blurStyle = getListSelectedItemStyle(element);
-
-	if (!focusStyle) {
-		focusStyle = "ruiListItemFocused"
-	}
-	if (!blurStyle) {
-		blurStyle = "ruiListItemSelected"
-	}
 
 	if (currentId) {
 		var current = document.getElementById(currentId);
@@ -801,24 +811,29 @@ function findBottomListItem(list, x, y) {
 	return result
 }
 
-function listViewKeyDownEvent(element, event) {
+function getKey(event) {
-	var key;
 	if (event.key) {
-		key = event.key;
+		return event.key;
-	} else if (event.keyCode) {
+	}
+
+	if (event.keyCode) {
 		switch (event.keyCode) {
-			case 13: key = "Enter"; break;
+			case 13: return "Enter";
-			case 32: key = " "; break;
+			case 32: return " ";
-			case 33: key = "PageUp"; break;
+			case 33: return "PageUp";
-			case 34: key = "PageDown"; break;
+			case 34: return "PageDown";
-			case 35: key = "End"; break;
+			case 35: return "End";
-			case 36: key = "Home"; break;
+			case 36: return "Home";
-			case 37: key = "ArrowLeft"; break;
+			case 37: return "ArrowLeft";
-			case 38: key = "ArrowUp"; break;
+			case 38: return "ArrowUp";
-			case 39: key = "ArrowRight"; break;
+			case 39: return "ArrowRight";
-			case 40: key = "ArrowDown"; break;
+			case 40: return "ArrowDown";
 		}
 	}
+}
+
+function listViewKeyDownEvent(element, event) {
+	const key = getKey(event);
 	if (key) {
 		var currentId = element.getAttribute("data-current");
 		var current
@@ -885,20 +900,9 @@ function listViewFocusEvent(element, event) {
 	if (currentId) {
 		var current = document.getElementById(currentId);
 		if (current) {
-			var focusStyle = element.getAttribute("data-focusitemstyle");
-			var blurStyle = element.getAttribute("data-bluritemstyle");
-			if (!focusStyle) {
-				focusStyle = "ruiListItemFocused"
-			}
-			if (!blurStyle) {
-				blurStyle = "ruiListItemSelected"
-			}
-			
 			if (current.classList) {
-				current.classList.remove(blurStyle);
+				current.classList.remove(getListSelectedItemStyle(element));
-				current.classList.add(focusStyle);
+				current.classList.add(getListFocusedItemStyle(element));
-			} else { // IE < 10
-				current.className = "ruiListItem " + focusStyle;
 			} 
 		}
 	}
@@ -909,20 +913,9 @@ function listViewBlurEvent(element, event) {
 	if (currentId) {
 		var current = document.getElementById(currentId);
 		if (current) {
-			var focusStyle = element.getAttribute("data-focusitemstyle");
-			var blurStyle = element.getAttribute("data-bluritemstyle");
-			if (!focusStyle) {
-				focusStyle = "ruiListItemFocused"
-			}
-			if (!blurStyle) {
-				blurStyle = "ruiListItemSelected"
-			}
-
 			if (current.classList) {
-				current.classList.remove(focusStyle);
+				current.classList.remove(getListFocusedItemStyle(element));
-				current.classList.add(blurStyle);
+				current.classList.add(getListSelectedItemStyle(element));
-			} else { // IE < 10
-				current.className = "ruiListItem " + blurStyle;
 			}
 		}
 	}
@@ -1373,3 +1366,387 @@ function setTitleColor(color) {
 function detailsEvent(element) {
 	sendMessage("details-open{session=" + sessionID + ",id=" + element.id + ",open=" + (element.open ? "1}" : "0}"));
 }
+
+function getTableFocusedItemStyle(element) {
+	return getStyleAttribute(element, "data-focusitemstyle", "ruiCurrentTableCellFocused");
+}
+
+function getTableSelectedItemStyle(element) {
+	return getStyleAttribute(element, "data-bluritemstyle", "ruiCurrentTableCell");
+}
+
+function tableViewFocusEvent(element, event) {
+	var currentId = element.getAttribute("data-current");
+	if (currentId) {
+		var current = document.getElementById(currentId);
+		if (current) {
+			if (current.classList) {
+				current.classList.remove(getTableSelectedItemStyle(element));
+				current.classList.add(getTableFocusedItemStyle(element));
+			} 
+		}
+	}
+}
+
+function tableViewBlurEvent(element, event) {
+	var currentId = element.getAttribute("data-current");
+	if (currentId) {
+		var current = document.getElementById(currentId);
+		if (current && current.classList) {
+			current.classList.remove(getTableFocusedItemStyle(element));
+			current.classList.add(getTableSelectedItemStyle(element));
+		}
+	}
+}
+
+function setTableCellCursor(element, row, column) {
+	const cellID = element.id + "-" + row + "-" + column;
+	var cell = document.getElementById(cellID);
+	if (!cell) {
+		return false;
+	}
+
+	const focusStyle = getTableFocusedItemStyle(element);
+	const oldCellID = element.getAttribute("data-current");
+	if (oldCellID) {
+		const oldCell = document.getElementById(oldCellID);
+		if (oldCell && oldCell.classList) {
+			oldCell.classList.remove(focusStyle);
+			oldCell.classList.remove(getTableSelectedItemStyle(element));
+		}
+	}
+
+	cell.classList.add(focusStyle);
+	element.setAttribute("data-current", cellID);
+
+	sendMessage("currentCell{session=" + sessionID + ",id=" + element.id + 
+			",row=" + row + ",column=" + column + "}");
+	return true;
+}
+
+function moveTableCellCursor(element, row, column, dr, dc) {
+	const rows = element.getAttribute("data-rows");
+	if (!rows) {
+		return;
+	}
+	const columns = element.getAttribute("data-columns");
+	if (!columns) {
+		return;
+	}
+
+	const rowCount = parseInt(rows);
+	const columnCount = parseInt(columns);
+	
+	row += dr;
+	column += dc;
+	while (row >= 0 && row < rowCount && column >= 0 && column < columnCount) {
+		if (setTableCellCursor(element, row, column)) {
+			return;
+		} else if (dr == 0) {
+			var r2 = row - 1;
+			while (r2 >= 0) {
+				if (setTableCellCursor(element, r2, column)) {
+					return;
+				}
+				r2--;
+			}
+		} else if (dc == 0) {
+			var c2 = column - 1;
+			while (c2 >= 0) {
+				if (setTableCellCursor(element, row, c2)) {
+					return;
+				}
+				c2--;
+			}
+		}
+		row += dr;
+		column += dc;
+	}
+}
+
+function tableViewCellKeyDownEvent(element, event) {
+	const key = getKey(event);
+	if (key) {
+		const currentId = element.getAttribute("data-current");
+		if (currentId) {
+			const elements = currentId.split("-");
+			if (elements.length >= 3) {
+				const row = parseInt(elements[1], 10)
+				const column = parseInt(elements[2], 10)
+
+				switch (key) {
+				case " ": 
+				case "Enter":
+					sendMessage("cellClick{session=" + sessionID + ",id=" + element.id + 
+								",row=" + row + ",column=" + column + "}");
+					break;
+	
+				case "ArrowLeft":
+					moveTableCellCursor(element, row, column, 0, -1)
+					break;
+				
+				case "ArrowRight":
+					moveTableCellCursor(element, row, column, 0, 1)
+					break;
+		
+				case "ArrowDown":
+					moveTableCellCursor(element, row, column, 1, 0)
+					break;
+	
+				case "ArrowUp":
+					moveTableCellCursor(element, row, column, -1, 0)
+					break;
+	
+				case "Home":
+					// TODO
+					break;
+	
+				case "End":
+					/*var newRow = rowCount-1;
+					while (newRow > row) {
+						if (setTableRowCursor(element, newRow)) {
+							break;
+						}
+						newRow--;
+					}*/
+					// TODO
+					break;
+	
+				case "PageUp":
+					// TODO
+					break;
+	
+				case "PageDown":
+					// TODO
+					break;
+	
+				default:
+					return;
+				}
+				
+				event.stopPropagation();
+				event.preventDefault();
+				return;
+			}
+		}
+		
+		switch (key) {
+		case "ArrowLeft":
+		case "ArrowRight":
+		case "ArrowDown":
+		case "ArrowUp":
+		case "Home":
+		case "End":
+		case "PageUp":
+		case "PageDown":
+			const rows = element.getAttribute("data-rows");
+			const columns = element.getAttribute("data-columns");
+			if (rows && columns) {
+				const rowCount = parseInt(rows);
+				const columnCount = parseInt(rows);
+				row = 0;
+				while (row < rowCount) {
+					column = 0;
+					while (columns < columnCount) {
+						if (setTableCellCursor(element, row, column)) {
+							event.stopPropagation();
+							event.preventDefault();
+							return;
+						}
+						column++;
+					}
+					row++;
+				}
+			}
+			break;
+
+		default:
+			return;
+		}
+		
+	}
+
+	event.stopPropagation();
+	event.preventDefault();
+}
+
+function setTableRowCursor(element, row) {
+	const tableRowID = element.id + "-" + row;
+	var tableRow = document.getElementById(tableRowID);
+	if (!tableRow) {
+		return false;
+	}
+
+	const focusStyle = getTableFocusedItemStyle(element);
+	const oldRowID = element.getAttribute("data-current");
+	if (oldRowID) {
+		const oldRow = document.getElementById(oldRowID);
+		if (oldRow && oldRow.classList) {
+			oldRow.classList.remove(focusStyle);
+			oldRow.classList.remove(getTableSelectedItemStyle(element));
+
+		}
+	}
+
+	tableRow.classList.add(focusStyle);
+	element.setAttribute("data-current", tableRowID);
+
+	sendMessage("currentRow{session=" + sessionID + ",id=" + element.id + ",row=" + row + "}");
+	return true;
+}
+
+function moveTableRowCursor(element, row, dr) {
+	const rows = element.getAttribute("data-rows");
+	if (!rows) {
+		return;
+	}
+
+	const rowCount = parseInt(rows);
+	row += dr;
+	while (row >= 0 && row < rowCount) {
+		if (setTableRowCursor(element, row)) {
+			return;
+		}
+		row += dr;
+	}
+}
+
+function tableViewRowKeyDownEvent(element, event) {
+	const key = getKey(event);
+	if (key) {
+		const currentId = element.getAttribute("data-current");
+		if (currentId) {
+			const elements = currentId.split("-");
+			if (elements.length >= 2) {
+				const row = parseInt(elements[1], 10);
+				switch (key) {
+					case " ": 
+					case "Enter":
+						sendMessage("rowClick{session=" + sessionID + ",id=" + element.id + ",row=" + row + "}");
+						break;
+		
+					case "ArrowDown":
+						moveTableRowCursor(element, row, 1)
+						break;
+		
+					case "ArrowUp":
+						moveTableRowCursor(element, row, -1)
+						break;
+		
+					case "Home":
+						var newRow = 0;
+						while (newRow < row) {
+							if (setTableRowCursor(element, newRow)) {
+								break;
+							}
+							newRow++;
+						}
+						break;
+		
+					case "End":
+						var newRow = rowCount-1;
+						while (newRow > row) {
+							if (setTableRowCursor(element, newRow)) {
+								break;
+							}
+							newRow--;
+						}
+						break;
+		
+					case "PageUp":
+						// TODO
+						break;
+		
+					case "PageDown":
+						// TODO
+						break;
+		
+					default:
+						return;
+				}
+				event.stopPropagation();
+				event.preventDefault();
+				return;
+			}
+		}
+
+		switch (key) {
+			case "ArrowLeft":
+			case "ArrowRight":
+			case "ArrowDown":
+			case "ArrowUp":
+			case "Home":
+			case "End":
+			case "PageUp":
+			case "PageDown":
+				const rows = element.getAttribute("data-rows");
+				if (rows) {
+					const rowCount = parseInt(rows);
+					row = 0;
+					while (row < rowCount) {
+						if (setTableRowCursor(element, row)) {
+							break;
+						}
+						row++;
+					}
+				}
+				break;
+
+			default:
+				return;
+		}
+	} 
+
+	event.stopPropagation();
+	event.preventDefault();
+}
+
+function tableCellClickEvent(element, event) {
+	event.preventDefault();
+
+	const elements = element.id.split("-");
+	if (elements.length < 3) {
+		return
+	}
+
+	const tableID = elements[0];
+	const row = parseInt(elements[1], 10);
+	const column = parseInt(elements[2], 10);
+	const table = document.getElementById(tableID);
+	if (table) {
+		const selection = table.getAttribute("data-selection");
+		if (selection == "cell") {
+			const currentID = table.getAttribute("data-current");
+			if (!currentID || currentID != element.ID) {
+				setTableCellCursor(table, row, column)
+			}
+		}
+	}
+
+	sendMessage("cellClick{session=" + sessionID + ",id=" + tableID + 
+				",row=" + row + ",column=" + column + "}");
+}
+
+function tableRowClickEvent(element, event) {
+	event.preventDefault();
+
+	const elements = element.id.split("-");
+	if (elements.length < 2) {
+		return
+	}
+
+	const tableID = elements[0];
+	const row = parseInt(elements[1], 10);
+	const table = document.getElementById(tableID);
+	if (table) {
+		const selection = table.getAttribute("data-selection");
+		if (selection == "cell") {
+			const currentID = table.getAttribute("data-current");
+			if (!currentID || currentID != element.ID) {
+				setTableRowCursor(table, row)
+			}
+		}
+	}
+
+	sendMessage("rowClick{session=" + sessionID + ",id=" + tableID + ",row=" + row + "}");
+}

customView.go

@@ -148,11 +148,15 @@ func (customView *CustomViewData) Scroll() Frame {
 	return customView.superView.Scroll()
 }
 
+func (customView *CustomViewData) HasFocus() bool {
+	return customView.superView.HasFocus()
+}
+
 func (customView *CustomViewData) onResize(self View, x, y, width, height float64) {
 	customView.superView.onResize(customView.superView, x, y, width, height)
 }
 
-func (customView *CustomViewData) onItemResize(self View, index int, x, y, width, height float64) {
+func (customView *CustomViewData) onItemResize(self View, index string, x, y, width, height float64) {
 	customView.superView.onItemResize(customView.superView, index, x, y, width, height)
 }
 

datePicker.go

@@ -44,6 +44,10 @@ func (picker *datePickerData) Init(session Session) {
 	picker.dateChangedListeners = []func(DatePicker, time.Time){}
 }
 
+func (picker *datePickerData) Focusable() bool {
+	return true
+}
+
 func (picker *datePickerData) normalizeTag(tag string) string {
 	tag = strings.ToLower(tag)
 	switch tag {

defaultTheme.rui

@@ -213,24 +213,32 @@ theme {
 			text-color = @ruiPopupTextColor,
 			radius = 4px,
 			shadow = _{spread-radius=4px, blur=16px, color=#80808080},
-		}
+		},
 		ruiPopupTitle {
 			background-color = @ruiPopupTitleColor,
 			text-color = @ruiPopupTitleTextColor,
 			min-height = 24px,
-		}
+		},
 		ruiMessageText {
 			padding-left = 64px,
 			padding-right = 64px,
 			padding-top = 32px,
 			padding-bottom = 32px,
-		}
+		},
 		ruiPopupMenuItem {
 			padding-top = 4px,
 			padding-bottom = 4px,
 			padding-left = 8px,
 			padding-right = 8px,
-		}
+		},
+		ruiCurrentTableCell {
+			background-color=@ruiSelectedColor,
+			text-color=@ruiSelectedTextColor,
+		},
+		ruiCurrentTableCellFocused {
+			background-color=@ruiHighlightColor,
+			text-color=@ruiHighlightTextColor,
+		},
 	],
 }
 

demo/tableDemo.go

@@ -32,6 +32,8 @@ GridLayout {
 						DropDownList { row = 5, column = 1, id = tableFootStyle, current = 0, items = ["none", "tableFoot1", "rui.Params"]},
 						Checkbox { row = 6, column = 0:1, id = tableRowStyle, content = "Row style" },
 						Checkbox { row = 7, column = 0:1, id = tableColumnStyle, content = "Column style" },
+						TextView { row = 8, text = "Selection mode" },
+						DropDownList { row = 8, column = 1, id = tableSelectionMode, current = 0, items = ["none", "cell", "row"]},
 					]
 				}
 			]
@@ -93,6 +95,10 @@ func createTableViewDemo(session rui.Session) rui.View {
 		}
 	}
 
+	rui.Set(view, "tableSelectionMode", rui.DropDownEvent, func(list rui.DropDownList, number int) {
+		rui.Set(view, "demoTableView1", rui.SelectionMode, number)
+	})
+
 	rui.Set(view, "tableCellGap", rui.DropDownEvent, func(list rui.DropDownList, number int) {
 		if number == 0 {
 			rui.Set(view, "demoTableView1", rui.Gap, rui.Px(0))

dropDownList.go

@@ -39,6 +39,10 @@ func (list *dropDownListData) Init(session Session) {
 	list.dropDownListener = []func(DropDownList, int){}
 }
 
+func (list *dropDownListData) Focusable() bool {
+	return true
+}
+
 func (list *dropDownListData) Remove(tag string) {
 	list.remove(strings.ToLower(tag))
 }

editView.go

@@ -63,6 +63,10 @@ func (edit *editViewData) Init(session Session) {
 	edit.tag = "EditView"
 }
 
+func (edit *editViewData) Focusable() bool {
+	return true
+}
+
 func (edit *editViewData) normalizeTag(tag string) string {
 	tag = strings.ToLower(tag)
 	switch tag {

filePicker.go

@@ -89,6 +89,10 @@ func (picker *filePickerData) Init(session Session) {
 	picker.fileSelectedListeners = []func(FilePicker, []FileInfo){}
 }
 
+func (picker *filePickerData) Focusable() bool {
+	return true
+}
+
 func (picker *filePickerData) Files() []FileInfo {
 	return picker.files
 }

focusEvents.go

@@ -140,13 +140,11 @@ func getFocusListeners(view View, subviewID string, tag string) []func(View) {
 }
 
 func focusEventsHtml(view View, buffer *strings.Builder) {
-	for tag, js := range focusEvents {
+	if view.Focusable() {
-		if value := view.getRaw(tag); value != nil {
+		for _, js := range focusEvents {
-			if listeners, ok := value.([]func(View)); ok && len(listeners) > 0 {
 			buffer.WriteString(js.jsEvent + `="` + js.jsFunc + `(this, event)" `)
 		}
 	}
-	}
 }
 
 // GetFocusListeners returns a FocusListener list. If there are no listeners then the empty list is returned

listView.go

@@ -1083,15 +1083,13 @@ func (listView *listViewData) htmlSubviews(self View, buffer *strings.Builder) {
 func (listView *listViewData) handleCommand(self View, command string, data DataObject) bool {
 	switch command {
 	case "itemSelected":
-		if text, ok := data.PropertyValue(`number`); ok {
+		if number, ok := dataIntProperty(data, `number`); ok {
-			if number, err := strconv.Atoi(text); err == nil {
 			listView.properties[Current] = number
 			for _, listener := range listView.selectedListeners {
 				listener(listView, number)
 			}
 			listView.propertyChangedEvent(Current)
 		}
-		}
 
 	case "itemUnselected":
 		if _, ok := listView.properties[Current]; ok {
@@ -1162,9 +1160,14 @@ func (listView *listViewData) onItemClick() {
 	}
 }
 
-func (listView *listViewData) onItemResize(self View, index int, x, y, width, height float64) {
+func (listView *listViewData) onItemResize(self View, index string, x, y, width, height float64) {
-	if index >= 0 && index < len(listView.itemFrame) {
+	n, err := strconv.Atoi(index)
-		listView.itemFrame[index] = Frame{Left: x, Top: y, Width: width, Height: height}
+	if err != nil {
+		ErrorLog(err.Error())
+	} else if n >= 0 && n < len(listView.itemFrame) {
+		listView.itemFrame[n] = Frame{Left: x, Top: y, Width: width, Height: height}
+	} else {
+		ErrorLogF(`Invalid ListView item index: %d`, n)
 	}
 }
 

mediaPlayer.go

@@ -168,6 +168,10 @@ func (player *mediaPlayerData) Init(session Session) {
 	player.tag = "MediaPlayer"
 }
 
+func (player *mediaPlayerData) Focusable() bool {
+	return true
+}
+
 func (player *mediaPlayerData) Remove(tag string) {
 	player.remove(strings.ToLower(tag))
 }

numberPicker.go

@@ -50,6 +50,10 @@ func (picker *numberPickerData) Init(session Session) {
 	picker.numberChangedListeners = []func(NumberPicker, float64){}
 }
 
+func (picker *numberPickerData) Focusable() bool {
+	return true
+}
+
 func (picker *numberPickerData) normalizeTag(tag string) string {
 	tag = strings.ToLower(tag)
 	switch tag {

resizeEvent.go

@@ -18,7 +18,7 @@ func (view *viewData) onResize(self View, x, y, width, height float64) {
 	}
 }
 
-func (view *viewData) onItemResize(self View, index int, x, y, width, height float64) {
+func (view *viewData) onItemResize(self View, index string, x, y, width, height float64) {
 }
 
 func (view *viewData) setFrameListener(tag string, value interface{}) bool {

session.go

@@ -378,15 +378,11 @@ func (session *sessionData) handleResize(data DataObject) {
 				}
 				if viewID, ok := obj.PropertyValue("id"); ok {
 					if n := strings.IndexRune(viewID, '-'); n > 0 {
-						if index, err := strconv.Atoi(viewID[n+1:]); err == nil {
 						if view := session.viewByHTMLID(viewID[:n]); view != nil {
-								view.onItemResize(view, index, getFloat("x"), getFloat("y"), getFloat("width"), getFloat("height"))
+							view.onItemResize(view, viewID[n+1:], getFloat("x"), getFloat("y"), getFloat("width"), getFloat("height"))
 						} else {
 							ErrorLogF(`View with id == %s not found`, viewID[:n])
 						}
-						} else {
-							ErrorLogF(`Invalid view id == %s not found`, viewID)
-						}
 					} else if view := session.viewByHTMLID(viewID); view != nil {
 						view.onResize(view, getFloat("x"), getFloat("y"), getFloat("width"), getFloat("height"))
 						view.setScroll(getFloat("scroll-x"), getFloat("scroll-y"), getFloat("scroll-width"), getFloat("scroll-height"))

tableView.go

@@ -214,11 +214,14 @@ type TableView interface {
 	View
 	ParanetView
 	ReloadTableData()
+	CellFrame(row, column int) Frame
+	getCurrent() CellIndex
 }
 
 type tableViewData struct {
 	viewData
 	cellViews                                 []View
+	cellFrame                                 []Frame
 	cellSelectedListener, cellClickedListener []func(TableView, int, int)
 	rowSelectedListener, rowClickedListener   []func(TableView, int)
 	current                                   CellIndex
@@ -245,6 +248,7 @@ func (table *tableViewData) Init(session Session) {
 	table.viewData.Init(session)
 	table.tag = "TableView"
 	table.cellViews = []View{}
+	table.cellFrame = []Frame{}
 	table.cellSelectedListener = []func(TableView, int, int){}
 	table.cellClickedListener = []func(TableView, int, int){}
 	table.rowSelectedListener = []func(TableView, int){}
@@ -270,6 +274,10 @@ func (table *tableViewData) normalizeTag(tag string) string {
 	return tag
 }
 
+func (table *tableViewData) Focusable() bool {
+	return GetSelectionMode(table, "") != NoneSelection
+}
+
 func (table *tableViewData) Get(tag string) interface{} {
 	return table.get(table.normalizeTag(tag))
 }
@@ -312,6 +320,10 @@ func (table *tableViewData) remove(tag string) {
 		table.current.Column = -1
 		table.propertyChanged(tag)
 
+	case SelectionMode:
+		table.viewData.remove(tag)
+		table.propertyChanged(tag)
+
 	default:
 		table.viewData.remove(tag)
 	}
@@ -486,14 +498,51 @@ func (table *tableViewData) set(tag string, value interface{}) bool {
 		}
 
 	case Current:
-		switch GetSelectionMode(table, "") {
+		switch value := value.(type) {
-		case NoneSelection:
+		case int:
+			table.current.Row = value
+			table.current.Column = -1
 
-		case CellSelection:
+		case CellIndex:
-			// TODO
+			table.current = value
 
-		case RowSelection:
+		case DataObject:
-			// TODO
+			if row, ok := dataIntProperty(value, "row"); ok {
+				table.current.Row = row
+			}
+			if column, ok := dataIntProperty(value, "column"); ok {
+				table.current.Column = column
+			}
+
+		case string:
+			if strings.Contains(value, ",") {
+				if values := strings.Split(value, ","); len(values) == 2 {
+					var n = []int{0, 0}
+					for i := 0; i < 2; i++ {
+						var err error
+						if n[i], err = strconv.Atoi(values[i]); err != nil {
+							ErrorLog(err.Error())
+							return false
+						}
+					}
+					table.current.Row = n[0]
+					table.current.Column = n[1]
+				} else {
+					notCompatibleType(tag, value)
+				}
+			} else {
+				n, err := strconv.Atoi(value)
+				if err != nil {
+					ErrorLog(err.Error())
+					return false
+				}
+				table.current.Row = n
+				table.current.Column = -1
+			}
+
+		default:
+			notCompatibleType(tag, value)
+			return false
 		}
 
 	default:
@@ -524,11 +573,75 @@ func (table *tableViewData) propertyChanged(tag string) {
 				updateCSSProperty(htmlID, "border-spacing", gap.cssString("0"), session)
 				updateCSSProperty(htmlID, "border-collapse", "separate", session)
 			}
+
+		case SelectionMode:
+			htmlID := table.htmlID()
+			session := table.Session()
+
+			switch GetSelectionMode(table, "") {
+			case CellSelection:
+				updateProperty(htmlID, "tabindex", "0", session)
+				updateProperty(htmlID, "onfocus", "tableViewFocusEvent(this, event)", session)
+				updateProperty(htmlID, "onblur", "tableViewBlurEvent(this, event)", session)
+				updateProperty(htmlID, "data-selection", "cell", session)
+				updateProperty(htmlID, "data-focusitemstyle", table.currentStyle(), session)
+				updateProperty(htmlID, "data-bluritemstyle", table.currentInactiveStyle(), session)
+
+				if table.current.Row >= 0 && table.current.Column >= 0 {
+					updateProperty(htmlID, "data-current", table.cellID(table.current.Row, table.current.Column), session)
+				} else {
+					removeProperty(htmlID, "data-current", session)
+				}
+				updateProperty(htmlID, "onkeydown", "tableViewCellKeyDownEvent(this, event)", session)
+
+			case RowSelection:
+				updateProperty(htmlID, "tabindex", "0", session)
+				updateProperty(htmlID, "onfocus", "tableViewFocusEvent(this, event)", session)
+				updateProperty(htmlID, "onblur", "tableViewBlurEvent(this, event)", session)
+				updateProperty(htmlID, "data-selection", "cell", session)
+				updateProperty(htmlID, "data-focusitemstyle", table.currentStyle(), session)
+				updateProperty(htmlID, "data-bluritemstyle", table.currentInactiveStyle(), session)
+
+				if table.current.Row >= 0 {
+					updateProperty(htmlID, "data-current", table.rowID(table.current.Row), session)
+				} else {
+					removeProperty(htmlID, "data-current", session)
+				}
+				updateProperty(htmlID, "onkeydown", "tableViewRowKeyDownEvent(this, event)", session)
+
+			default: // NoneSelection
+				for _, prop := range []string{"tabindex", "data-current", "onfocus", "onblur", "onkeydown", "data-selection"} {
+					removeProperty(htmlID, prop, session)
+				}
+			}
+			updateInnerHTML(htmlID, session)
 		}
 	}
 	table.propertyChangedEvent(tag)
 }
 
+func (table *tableViewData) currentStyle() string {
+	if value := table.getRaw(CurrentStyle); value != nil {
+		if style, ok := value.(string); ok {
+			if style, ok = table.session.resolveConstants(style); ok {
+				return style
+			}
+		}
+	}
+	return "ruiCurrentTableCellFocused"
+}
+
+func (table *tableViewData) currentInactiveStyle() string {
+	if value := table.getRaw(CurrentInactiveStyle); value != nil {
+		if style, ok := value.(string); ok {
+			if style, ok = table.session.resolveConstants(style); ok {
+				return style
+			}
+		}
+	}
+	return "ruiCurrentTableCell"
+}
+
 func (table *tableViewData) valueToCellListeners(value interface{}) []func(TableView, int, int) {
 	if value == nil {
 		return []func(TableView, int, int){}
@@ -643,16 +756,69 @@ func (table *tableViewData) htmlTag() string {
 	return "table"
 }
 
-func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
+func (table *tableViewData) rowID(index int) string {
-	table.cellViews = []View{}
+	return fmt.Sprintf("%s-%d", table.htmlID(), index)
+}
 
-	content := table.getRaw(Content)
+func (table *tableViewData) cellID(row, column int) string {
-	if content == nil {
+	return fmt.Sprintf("%s-%d-%d", table.htmlID(), row, column)
-		return
+}
+
+func (table *tableViewData) htmlProperties(self View, buffer *strings.Builder) {
+
+	if content := table.content(); content != nil {
+		buffer.WriteString(` data-rows="`)
+		buffer.WriteString(strconv.Itoa(content.RowCount()))
+		buffer.WriteString(`" data-columns="`)
+		buffer.WriteString(strconv.Itoa(content.ColumnCount()))
+		buffer.WriteRune('"')
 	}
 
-	adapter, ok := content.(TableAdapter)
+	if selectionMode := GetSelectionMode(table, ""); selectionMode != NoneSelection {
-	if !ok {
+		buffer.WriteString(` onfocus="tableViewFocusEvent(this, event)" onblur="tableViewBlurEvent(this, event)" data-focusitemstyle="`)
+		buffer.WriteString(table.currentStyle())
+		buffer.WriteString(`" data-bluritemstyle="`)
+		buffer.WriteString(table.currentInactiveStyle())
+		buffer.WriteRune('"')
+
+		switch selectionMode {
+		case RowSelection:
+			buffer.WriteString(` data-selection="row" onkeydown="tableViewRowKeyDownEvent(this, event)"`)
+			if table.current.Row >= 0 {
+				buffer.WriteString(` data-current="`)
+				buffer.WriteString(table.rowID(table.current.Row))
+				buffer.WriteRune('"')
+			}
+
+		case CellSelection:
+			buffer.WriteString(` data-selection="cell" onkeydown="tableViewCellKeyDownEvent(this, event)"`)
+			if table.current.Row >= 0 && table.current.Column >= 0 {
+				buffer.WriteString(` data-current="`)
+				buffer.WriteString(table.cellID(table.current.Row, table.current.Column))
+				buffer.WriteRune('"')
+			}
+		}
+	}
+
+	table.viewData.htmlProperties(self, buffer)
+}
+
+func (table *tableViewData) content() TableAdapter {
+	if content := table.getRaw(Content); content != nil {
+		if adapter, ok := content.(TableAdapter); ok {
+			return adapter
+		}
+	}
+
+	return nil
+}
+
+func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
+	table.cellViews = []View{}
+	table.cellFrame = []Frame{}
+
+	adapter := table.content()
+	if adapter == nil {
 		return
 	}
 
@@ -662,10 +828,12 @@ func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
 		return
 	}
 
+	table.cellFrame = make([]Frame, rowCount*columnCount)
+
 	rowStyle := table.getRowStyle()
 
 	var cellStyle1 TableCellStyle = nil
-	if style, ok := content.(TableCellStyle); ok {
+	if style, ok := adapter.(TableCellStyle); ok {
 		cellStyle1 = style
 	}
 
@@ -691,6 +859,7 @@ func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
 	view.Init(session)
 
 	ignorCells := []struct{ row, column int }{}
+	selectionMode := GetSelectionMode(table, "")
 
 	tableCSS := func(startRow, endRow int, cellTag string, cellBorder BorderProperty, cellPadding BoundsProperty) {
 		for row := startRow; row < endRow; row++ {
@@ -706,13 +875,30 @@ func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
 				}
 			}
 
-			if cssBuilder.buffer.Len() > 0 {
+			buffer.WriteString(`<tr id="`)
-				buffer.WriteString(`<tr style="`)
+			buffer.WriteString(table.rowID(row))
-				buffer.WriteString(cssBuilder.buffer.String())
+			buffer.WriteRune('"')
-				buffer.WriteString(`">`)
+
+			if selectionMode == RowSelection {
+				if row == table.current.Row {
+					buffer.WriteString(` class="`)
+					if table.HasFocus() {
+						buffer.WriteString(table.currentStyle())
 					} else {
-				buffer.WriteString("<tr>")
+						buffer.WriteString(table.currentInactiveStyle())
 					}
+					buffer.WriteRune('"')
+				}
+
+				buffer.WriteString(` onclick="tableRowClickEvent(this, event)"`)
+			}
+
+			if cssBuilder.buffer.Len() > 0 {
+				buffer.WriteString(` style="`)
+				buffer.WriteString(cssBuilder.buffer.String())
+				buffer.WriteString(`"`)
+			}
+			buffer.WriteString(">")
 
 			for column := 0; column < columnCount; column++ {
 				ignore := false
@@ -748,7 +934,7 @@ func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
 											return value
 
 										case string:
-											if value, ok = session.resolveConstants(value); ok {
+											if value, ok := session.resolveConstants(value); ok {
 												if n, err := strconv.Atoi(value); err == nil {
 													return n
 												}
@@ -780,6 +966,23 @@ func (table *tableViewData) htmlSubviews(self View, buffer *strings.Builder) {
 
 					buffer.WriteRune('<')
 					buffer.WriteString(cellTag)
+					buffer.WriteString(` id="`)
+					buffer.WriteString(table.cellID(row, column))
+					buffer.WriteString(`" class="ruiView`)
+
+					if selectionMode == CellSelection && row == table.current.Row && column == table.current.Column {
+						buffer.WriteRune(' ')
+						if table.HasFocus() {
+							buffer.WriteString(table.currentStyle())
+						} else {
+							buffer.WriteString(table.currentInactiveStyle())
+						}
+					}
+					buffer.WriteRune('"')
+
+					if selectionMode == CellSelection {
+						buffer.WriteString(` onclick="tableCellClickEvent(this, event)"`)
+					}
 
 					if columnSpan > 1 {
 						buffer.WriteString(` colspan="`)
@@ -1087,6 +1290,10 @@ func (table *tableViewData) getCellBorder() BorderProperty {
 	return nil
 }
 
+func (table *tableViewData) getCurrent() CellIndex {
+	return table.current
+}
+
 func (table *tableViewData) cssStyle(self View, builder cssBuilder) {
 	table.viewData.cssViewStyle(builder, table.Session())
 
@@ -1101,30 +1308,93 @@ func (table *tableViewData) cssStyle(self View, builder cssBuilder) {
 }
 
 func (table *tableViewData) ReloadTableData() {
+	if content := table.content(); content != nil {
+		updateProperty(table.htmlID(), "data-rows", strconv.Itoa(content.RowCount()), table.Session())
+		updateProperty(table.htmlID(), "data-columns", strconv.Itoa(content.ColumnCount()), table.Session())
+	}
 	updateInnerHTML(table.htmlID(), table.Session())
 }
 
-func (cell *tableCellView) Set(tag string, value interface{}) bool {
+func (table *tableViewData) onItemResize(self View, index string, x, y, width, height float64) {
-	return cell.set(strings.ToLower(tag), value)
+	if n := strings.IndexRune(index, '-'); n > 0 {
+		if row, err := strconv.Atoi(index[:n]); err == nil {
+			if column, err := strconv.Atoi(index[n+1:]); err == nil {
+				if content := table.content(); content != nil {
+					i := row*content.ColumnCount() + column
+					if i < len(table.cellFrame) {
+						table.cellFrame[i].Left = x
+						table.cellFrame[i].Top = y
+						table.cellFrame[i].Width = width
+						table.cellFrame[i].Height = height
+					}
+				}
+			} else {
+				ErrorLog(err.Error())
+			}
+		} else {
+			ErrorLog(err.Error())
+		}
+	} else {
+		ErrorLogF(`Invalid cell index: %s`, index)
+	}
 }
 
-func (cell *tableCellView) set(tag string, value interface{}) bool {
+func (table *tableViewData) CellFrame(row, column int) Frame {
-	switch tag {
+	if content := table.content(); content != nil {
-	case VerticalAlign:
+		i := row*content.ColumnCount() + column
-		tag = TableVerticalAlign
+		if i < len(table.cellFrame) {
+			return table.cellFrame[i]
 		}
-	return cell.viewData.set(tag, value)
-}
-
-func (cell *tableCellView) cssStyle(self View, builder cssBuilder) {
-	session := cell.Session()
-	cell.viewData.cssViewStyle(builder, session)
-
-	if value, ok := enumProperty(cell, TableVerticalAlign, session, 0); ok {
-		builder.add("vertical-align", enumProperties[TableVerticalAlign].values[value])
 	}
+	return Frame{}
 }
 
 func (table *tableViewData) Views() []View {
 	return table.cellViews
 }
+
+func (table *tableViewData) handleCommand(self View, command string, data DataObject) bool {
+	switch command {
+	case "currentRow":
+		if row, ok := dataIntProperty(data, "row"); ok && row != table.current.Row {
+			table.current.Row = row
+			for _, listener := range table.rowSelectedListener {
+				listener(table, row)
+			}
+		}
+
+	case "currentCell":
+		if row, ok := dataIntProperty(data, "row"); ok {
+			if column, ok := dataIntProperty(data, "column"); ok {
+				if row != table.current.Row || column != table.current.Column {
+					table.current.Row = row
+					table.current.Column = column
+					for _, listener := range table.cellSelectedListener {
+						listener(table, row, column)
+					}
+				}
+			}
+		}
+
+	case "rowClick":
+		if row, ok := dataIntProperty(data, "row"); ok {
+			for _, listener := range table.rowClickedListener {
+				listener(table, row)
+			}
+		}
+
+	case "cellClick":
+		if row, ok := dataIntProperty(data, "row"); ok {
+			if column, ok := dataIntProperty(data, "column"); ok {
+				for _, listener := range table.cellClickedListener {
+					listener(table, row, column)
+				}
+			}
+		}
+
+	default:
+		return table.viewData.handleCommand(self, command, data)
+	}
+
+	return true
+}

tableViewUtils.go

@@ -1,5 +1,28 @@
 package rui
 
+import "strings"
+
+func (cell *tableCellView) Set(tag string, value interface{}) bool {
+	return cell.set(strings.ToLower(tag), value)
+}
+
+func (cell *tableCellView) set(tag string, value interface{}) bool {
+	switch tag {
+	case VerticalAlign:
+		tag = TableVerticalAlign
+	}
+	return cell.viewData.set(tag, value)
+}
+
+func (cell *tableCellView) cssStyle(self View, builder cssBuilder) {
+	session := cell.Session()
+	cell.viewData.cssViewStyle(builder, session)
+
+	if value, ok := enumProperty(cell, TableVerticalAlign, session, 0); ok {
+		builder.add("vertical-align", enumProperties[TableVerticalAlign].values[value])
+	}
+}
+
 // GetSelectionMode returns the mode of the TableView elements selection.
 // Valid values are NoneSelection (0), CellSelection (1), and RowSelection (2).
 // If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
@@ -15,6 +38,42 @@ func GetSelectionMode(view View, subviewID string) int {
 	return NoneSelection
 }
 
+// GetSelectionMode returns the index of the TableView selected row.
+// If there is no selected row, then a value less than 0 are returned.
+// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
+func GetCurrentTableRow(view View, subviewID string) int {
+	if subviewID != "" {
+		view = ViewByID(view, subviewID)
+	}
+
+	if view != nil {
+		if selectionMode := GetSelectionMode(view, ""); selectionMode != NoneSelection {
+			if tableView, ok := view.(TableView); ok {
+				return tableView.getCurrent().Row
+			}
+		}
+	}
+	return -1
+}
+
+// GetCurrentTableCell returns the row and column index of the TableView selected cell.
+// If there is no selected cell, then a value of the row and column index less than 0 is returned.
+// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
+func GetCurrentTableCell(view View, subviewID string) CellIndex {
+	if subviewID != "" {
+		view = ViewByID(view, subviewID)
+	}
+
+	if view != nil {
+		if selectionMode := GetSelectionMode(view, ""); selectionMode != NoneSelection {
+			if tableView, ok := view.(TableView); ok {
+				return tableView.getCurrent()
+			}
+		}
+	}
+	return CellIndex{Row: -1, Column: -1}
+}
+
 // GetTableCellClickedListeners returns listeners of event which occurs when the user clicks on a table cell.
 // If there are no listeners then the empty list is returned.
 // If the second argument (subviewID) is "" then a value from the first argument (view) is returned.

timePicker.go

@@ -44,6 +44,10 @@ func (picker *timePickerData) Init(session Session) {
 	picker.timeChangedListeners = []func(TimePicker, time.Time){}
 }
 
+func (picker *timePickerData) Focusable() bool {
+	return true
+}
+
 func (picker *timePickerData) normalizeTag(tag string) string {
 	tag = strings.ToLower(tag)
 	switch tag {

view.go

@@ -58,6 +58,8 @@ type View interface {
 	SetAnimated(tag string, value interface{}, animation Animation) bool
 	// SetChangeListener set the function to track the change of the View property
 	SetChangeListener(tag string, listener func(View, string))
+	// HasFocus returns 'true' if the view has focus
+	HasFocus() bool
 
 	handleCommand(self View, command string, data DataObject) bool
 	htmlClass(disabled bool) string
@@ -73,7 +75,7 @@ type View interface {
 	getTransitions() Params
 
 	onResize(self View, x, y, width, height float64)
-	onItemResize(self View, index int, x, y, width, height float64)
+	onItemResize(self View, index string, x, y, width, height float64)
 	setNoResizeEvent()
 	isNoResizeEvent() bool
 	setScroll(x, y, width, height float64)
@@ -95,6 +97,7 @@ type viewData struct {
 	scroll           Frame
 	noResizeEvent    bool
 	created          bool
+	hasFocus         bool
 	//animation map[string]AnimationEndListener
 }
 
@@ -737,7 +740,14 @@ func (view *viewData) handleCommand(self View, command string, data DataObject)
 	case TouchStart, TouchEnd, TouchMove, TouchCancel:
 		handleTouchEvents(self, command, data)
 
-	case FocusEvent, LostFocusEvent:
+	case FocusEvent:
+		view.hasFocus = true
+		for _, listener := range getFocusListeners(view, "", command) {
+			listener(self)
+		}
+
+	case LostFocusEvent:
+		view.hasFocus = false
 		for _, listener := range getFocusListeners(view, "", command) {
 			listener(self)
 		}
@@ -838,3 +848,7 @@ func (view *viewData) SetChangeListener(tag string, listener func(View, string))
 		view.changeListener[tag] = listener
 	}
 }
+
+func (view *viewData) HasFocus() bool {
+	return view.hasFocus
+}