Control SegmentedButtonControl()
{
var control = new SegmentedButton {
Items = { "Item1", "Item2" }
};
LogEvents(control);
return(control);
}
public void ClickingSelectedSegmentShouldNotTriggerSelectionChanged()
{
var selectedIndexesChangedCount = 0;
var itemClickCount = 0;
var clickCount = 0;
SegmentedItem itemClicked = null;
SegmentedItem itemItemClicked = null;
SegmentedItem itemExpected = null;
Form(form =>
{
itemExpected = new ButtonSegmentedItem {
Text = "Click Me!", Selected = true
};
var segmentedButton = new SegmentedButton
{
SelectionMode = SegmentedSelectionMode.Single,
Items = { "First", itemExpected, "Last" }
};
segmentedButton.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
segmentedButton.ItemClick += (sender, e) =>
{
itemItemClicked = e.Item;
itemClickCount++;
};
itemExpected.Click += (sender, e) =>
{
itemClicked = sender as SegmentedItem;
clickCount++;
Application.Instance.AsyncInvoke(form.Close);
};
Assert.IsTrue(itemExpected.Selected, "#1.1");
form.Content = new StackLayout
{
Spacing = 10,
Padding = 10,
Items =
{
"Click the selected segment",
segmentedButton
}
};
}, -1);
Assert.AreEqual(0, selectedIndexesChangedCount, "#2.1");
Assert.AreEqual(1, itemClickCount, "#2.2");
Assert.AreEqual(1, clickCount, "#2.3");
Assert.IsNotNull(itemExpected, "#3.1");
Assert.AreSame(itemExpected, itemClicked, "#3.2");
Assert.AreSame(itemExpected, itemItemClicked, "#3.3");
}
public void SettingSelectedOnItemShouldChangeSelection()
{
var segmentedButton = new SegmentedButton
{
Items = { "Item1", "Item2", "Item3" }
};
var selectedIndexesChangedCount = 0;
segmentedButton.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
segmentedButton.Items[0].Selected = true;
}
void LogEvents(SegmentedButton button)
{
button.SelectedIndexesChanged += (sender, e) => Log.Write(sender, $"SelectedIndexesChanged: {string.Join(", ", button.SelectedIndexes.Select(r => r.ToString()))}");
button.SelectedItemsChanged += (sender, e) => Log.Write(sender, $"SelectedItemsChanged: {string.Join(", ", button.SelectedItems.Select(ItemDesc))}");
button.ItemClick += (sender, e) => Log.Write(sender, $"ItemClick: {ItemDesc(e.Item)}, Index: {e.Index}");
button.SelectedIndexChanged += (sender, e) => Log.Write(sender, $"SelectedIndexChanged: {button.SelectedIndex}");
button.SelectedItemChanged += (sender, e) => Log.Write(sender, $"SelectedItemChanged: {ItemDesc(button.SelectedItem)}");
foreach (var item in button.Items)
{
LogEvents(item);
}
}
public void SettingMultipleSelectedInSingleModeShouldOnlyHaveOneSelectedItem()
{
var item1 = new ButtonSegmentedItem {
Text = "Item1", Selected = true
};
var item2 = new ButtonSegmentedItem {
Text = "Item2", Selected = true
};
var item3 = new ButtonSegmentedItem {
Text = "Item3", Selected = true
};
var segmentedButton = new SegmentedButton
{
SelectionMode = SegmentedSelectionMode.Single
};
var selectedIndexesChangedCount = 0;
segmentedButton.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
segmentedButton.Items.Add(item1);
Assert.AreEqual(1, selectedIndexesChangedCount, "#1.1");
segmentedButton.Items.Add(item2);
Assert.AreEqual(2, selectedIndexesChangedCount, "#1.2");
segmentedButton.Items.Add(item3);
Assert.AreEqual(3, selectedIndexesChangedCount, "#1.3");
Assert.AreEqual(2, segmentedButton.SelectedIndex, "#2.1");
Assert.AreSame(item3, segmentedButton.SelectedItem, "#2.2");
CollectionAssert.AreEqual(new[] { item3 }, segmentedButton.SelectedItems, "#2.3");
CollectionAssert.AreEqual(new[] { 2 }, segmentedButton.SelectedIndexes, "#2.4");
Assert.AreEqual(3, selectedIndexesChangedCount, "#2.5");
item1.Selected = true;
Assert.AreEqual(0, segmentedButton.SelectedIndex, "#3.1");
Assert.AreSame(item1, segmentedButton.SelectedItem, "#3.2");
CollectionAssert.AreEqual(new[] { item1 }, segmentedButton.SelectedItems, "#3.3");
CollectionAssert.AreEqual(new[] { 0 }, segmentedButton.SelectedIndexes, "#3.4");
Assert.AreEqual(4, selectedIndexesChangedCount, "#3.5");
item1.Selected = false;
Assert.AreEqual(-1, segmentedButton.SelectedIndex, "#4.1");
Assert.IsNull(segmentedButton.SelectedItem, "#4.2");
CollectionAssert.AreEqual(new SegmentedItem[0], segmentedButton.SelectedItems, "#4.3");
CollectionAssert.AreEqual(new int[0], segmentedButton.SelectedIndexes, "#4.4");
Assert.AreEqual(5, selectedIndexesChangedCount, "#4.5");
}
public void ChangingModesShouldUpdateSelection()
{
var item1 = new ButtonSegmentedItem {
Text = "Item1", Selected = true
};
var item2 = new ButtonSegmentedItem {
Text = "Item2", Selected = true
};
var item3 = new ButtonSegmentedItem {
Text = "Item3", Selected = true
};
var segmentedButton = new SegmentedButton
{
SelectionMode = SegmentedSelectionMode.Multiple,
Items = { item1, item2, item3 }
};
var selectedIndexesChangedCount = 0;
segmentedButton.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
// sanity check, in multiple selection last selected is returned
Assert.AreEqual(0, segmentedButton.SelectedIndex, "#1.1");
Assert.AreEqual(item1, segmentedButton.SelectedItem, "#1.2");
CollectionAssert.AreEquivalent(new[] { 0, 1, 2 }, segmentedButton.SelectedIndexes, "#1.3");
CollectionAssert.AreEquivalent(new[] { item1, item2, item3 }, segmentedButton.SelectedItems, "#1.4");
// change mode to single
segmentedButton.SelectionMode = SegmentedSelectionMode.Single;
Assert.AreEqual(1, selectedIndexesChangedCount, "#2.1");
Assert.AreEqual(0, segmentedButton.SelectedIndex, "#2.2");
Assert.AreEqual(item1, segmentedButton.SelectedItem, "#2.3");
CollectionAssert.AreEquivalent(new[] { 0 }, segmentedButton.SelectedIndexes, "#2.4");
CollectionAssert.AreEquivalent(new[] { item1 }, segmentedButton.SelectedItems, "#2.5");
// accessing selected items shouldn't trigger anything
Assert.AreEqual(1, selectedIndexesChangedCount, "#3.1");
// change mode to none
segmentedButton.SelectionMode = SegmentedSelectionMode.None;
Assert.AreEqual(2, selectedIndexesChangedCount, "#4.1");
Assert.AreEqual(-1, segmentedButton.SelectedIndex, "#4.2");
Assert.AreEqual(null, segmentedButton.SelectedItem, "#4.3");
CollectionAssert.IsEmpty(segmentedButton.SelectedIndexes, "#4.4");
CollectionAssert.IsEmpty(segmentedButton.SelectedItems, "#4.5");
}
public void ClickingAnItemWhenModeIsNoneShouldNotRaiseChangedEvents()
{
int selectedIndexesChangedCount = 0;
int itemClickWasRaised = 0;
int itemWasClicked = 0;
int itemSelectedWasChanged = 0;
bool itemIsSelected = false;
int[] selectedItems = null;
int selectedIndex = 0;
ManualForm("Click on the Click Me item", form =>
{
var control = new SegmentedButton();
control.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
control.Items.Add("Item1");
var item2 = new ButtonSegmentedItem {
Text = "Click Me"
};
item2.Click += (sender, e) => itemWasClicked++;
item2.SelectedChanged += (sender, e) => itemSelectedWasChanged++;
control.Items.Add(item2);
control.Items.Add("Item3");
// async in case code runs after this event.
control.ItemClick += (sender, e) =>
{
itemClickWasRaised++;
itemIsSelected = item2.Selected;
selectedIndex = control.SelectedIndex;
selectedItems = control.SelectedIndexes?.ToArray();
Application.Instance.AsyncInvoke(form.Close);
};
return(control);
}, allowPass: false);
Assert.AreEqual(1, itemClickWasRaised, "#1.1"); // ensure user actually clicked an item.
Assert.AreEqual(0, selectedIndexesChangedCount, "#1.2");
CollectionAssert.IsEmpty(selectedItems, "#1.3");
Assert.AreEqual(-1, selectedIndex, "#1.4");
// check item events
Assert.AreEqual(1, itemWasClicked, "#2.1");
Assert.AreEqual(0, itemSelectedWasChanged, "#2.2");
Assert.IsFalse(itemIsSelected, "#2.3");
}
public void AddingAndRemovingSelectedItemShouldChangeSelection()
{
var item1 = new ButtonSegmentedItem {
Text = "Item1"
};
var item2 = new ButtonSegmentedItem {
Text = "Item2", Selected = true
};
var item3 = new ButtonSegmentedItem {
Text = "Item3"
};
var segmentedButton = new SegmentedButton
{
SelectionMode = SegmentedSelectionMode.Single,
};
var selectedIndexesChangedCount = 0;
segmentedButton.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
// add non-selected item
segmentedButton.Items.Add(item1);
Assert.AreEqual(0, selectedIndexesChangedCount, "#1.1");
Assert.AreEqual(-1, segmentedButton.SelectedIndex, "#1.2");
// add item that was selected (selection now changed to that item!)
segmentedButton.Items.Add(item2);
Assert.AreEqual(1, selectedIndexesChangedCount, "#2.1");
Assert.AreEqual(1, segmentedButton.SelectedIndex, "#2.2");
// add another item (no change)
segmentedButton.Items.Add(item3);
Assert.AreEqual(1, selectedIndexesChangedCount, "#3.1");
Assert.AreEqual(1, segmentedButton.SelectedIndex, "#3.2");
// remove a non-selected item (no change)
segmentedButton.Items.Remove(item3);
Assert.AreEqual(1, selectedIndexesChangedCount, "#4.1");
Assert.AreEqual(1, segmentedButton.SelectedIndex, "#4.2");
// remove the selected item (change!)
segmentedButton.Items.Remove(item2);
Assert.AreEqual(2, selectedIndexesChangedCount, "#5.1");
Assert.AreEqual(-1, segmentedButton.SelectedIndex, "#5.2");
}
public void ChangingSelectionWhenModeIsNoneShouldNotRaiseChangedEvents()
{
var control = new SegmentedButton();
int selectedIndexesChangedCount = 0;
control.SelectedIndexesChanged += (sender, e) => selectedIndexesChangedCount++;
control.Items.Add("Item1");
control.Items.Add("Item2");
control.Items.Add("Item3");
Assert.AreEqual(0, selectedIndexesChangedCount, "#1");
control.SelectedIndex = 0;
Assert.AreEqual(-1, control.SelectedIndex, "#2.1");
Assert.AreEqual(0, selectedIndexesChangedCount, "#2.2");
CollectionAssert.IsEmpty(control.SelectedIndexes, "#2.3");
control.SelectedIndexes = new[] { 1, 2 };
Assert.AreEqual(-1, control.SelectedIndex, "#3.1");
Assert.AreEqual(0, selectedIndexesChangedCount, "#3.2");
CollectionAssert.IsEmpty(control.SelectedIndexes, "#3.3");
}
public SegmentedButtonSection()
{
var checkCommand = new CheckCommand
{
ToolBarText = "CheckCommand"
};
checkCommand.CheckedChanged += (sender, e) => Log.Write(sender, $"CheckedChanged: {checkCommand.Checked}");
checkCommand.Executed += (sender, e) => Log.Write(sender, "Executed");
var segbutton = new SegmentedButton();
segbutton.Items.Add(new ButtonSegmentedItem {
Image = TestIcons.TestIcon.WithSize(16, 16)
});
segbutton.Items.Add(new ButtonSegmentedItem {
Text = "Some Text", Image = TestIcons.TestImage.WithSize(16, 16)
});
segbutton.Items.Add(new ButtonSegmentedItem(checkCommand));
segbutton.Items.Add(new ButtonSegmentedItem {
Text = "Width=150", Width = 150
});
segbutton.Items.Add(new MenuSegmentedItem
{
Text = "Selectable Menu",
CanSelect = true,
Menu = new ContextMenu
{
Items =
{
CreateMenuItem("Menu Item 1"),
CreateMenuItem("Menu Item 2")
}
}
});
segbutton.Items.Add(new MenuSegmentedItem
{
Text = "Menu Only",
Image = TestIcons.TestImage.WithSize(16, 16),
CanSelect = false,
Menu = new ContextMenu
{
Items =
{
CreateMenuItem("Menu Item 1"),
CreateMenuItem("Menu Item 2")
}
}
});
LogEvents(segbutton);
var selectionModeDropDown = new EnumDropDown <SegmentedSelectionMode>();
selectionModeDropDown.SelectedValueBinding.Bind(segbutton, b => b.SelectionMode);
var selectAllButton = new Button {
Text = "SelectAll"
};
selectAllButton.Click += (sender, e) => segbutton.SelectAll();
//selectAllButton.Bind(c => c.Enabled, selectionModeDropDown.SelectedValueBinding.Convert(r => r == SegmentedSelectionMode.Multiple));
var clearSelectionButton = new Button {
Text = "ClearSelection"
};
clearSelectionButton.Click += (sender, e) => segbutton.ClearSelection();
clearSelectionButton.Bind(c => c.Enabled, selectionModeDropDown.SelectedValueBinding.Convert(r => r != SegmentedSelectionMode.None));
var checkCommandEnabled = new CheckBox {
Text = "CheckCommand.Enabled"
};
checkCommandEnabled.Bind(c => c.Checked, checkCommand, c => c.Enabled);
// layout
BeginCentered();
AddSeparateRow("SelectionMode:", selectionModeDropDown);
AddSeparateRow(selectAllButton, clearSelectionButton);
AddSeparateRow(checkCommandEnabled);
EndCentered();
AddSeparateRow(segbutton);
}
/// <summary>
/// Raises the SelectedIndexesChanged event
/// </summary>
public void OnSelectedIndexesChanged(SegmentedButton widget, EventArgs e)
{
using (widget.Platform.Context)
widget.OnSelectedIndexesChanged(e);
}
/// <summary>
/// Raises the ItemClicked event.
/// </summary>
public void OnItemClicked(SegmentedButton widget, SegmentedItemClickEventArgs e)
{
using (widget.Platform.Context)
widget.OnItemClicked(e);
}
