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Clear ListView and show loading animation during update

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This commit is contained in:
John Lewin 2018-07-13 16:13:53 -07:00
parent 78a64419c3
commit fc7c6b5061
2 changed files with 31 additions and 7 deletions
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37
Library/Widgets/ListView/ListView.cs
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@ -55,6 +55,11 @@ namespace MatterHackers.MatterControl.CustomWidgets
private ILibraryContainerLink loadingContainerLink;
// Default to IconListView
private GuiWidget contentView;
private Color loadingBackgroundColor;
private ImageSequenceWidget loadingIndicator;
// Default constructor uses IconListView
public ListView(ILibraryContext context, ThemeConfig theme)
: this(context, new IconListView(theme), theme)
@ -65,6 +70,8 @@ namespace MatterHackers.MatterControl.CustomWidgets
{
contentView = new IconListView(theme);
loadingBackgroundColor = new Color(theme.Colors.PrimaryAccentColor, 10);
this.theme = theme;
this.LibraryContext = context;
@ -292,9 +299,6 @@ namespace MatterHackers.MatterControl.CustomWidgets
List
}
// Default to IconListView
private GuiWidget contentView ;
/// <summary>
/// The GuiWidget responsible for rendering ListViewItems
/// </summary>
@ -312,10 +316,19 @@ namespace MatterHackers.MatterControl.CustomWidgets
{
this.ScrollArea.CloseAllChildren();
this.contentView = value;
this.contentView.HAnchor = HAnchor.Stretch;
this.contentView.Name = "Library ListView";
contentView = value;
contentView.HAnchor = HAnchor.Stretch;
contentView.VAnchor = VAnchor.Fit | VAnchor.Top;
contentView.Name = "Library ListContentView";
this.AddChild(this.contentView);
this.ScrollArea.AddChild(
loadingIndicator = new ImageSequenceWidget(ApplicationController.Instance.GetProcessingSequence(theme.Colors.PrimaryAccentColor))
{
VAnchor = VAnchor.Top,
HAnchor = HAnchor.Center,
Visible = false
});
}
}
else
@ -359,7 +372,7 @@ namespace MatterHackers.MatterControl.CustomWidgets
if (itemModel is ILibraryContainerLink containerLink)
{
// Prevent invalid assignment of container.Parent due to overlapping load attempts that
// Prevent invalid assignment of container.Parent due to overlapping load attempts that
// would otherwise result in containers with self referencing parent properties
if (loadingContainerLink != containerLink)
{
@ -371,11 +384,21 @@ namespace MatterHackers.MatterControl.CustomWidgets
var container = await containerLink.GetContainer(null);
if (container != null)
{
(contentView as IListContentView)?.ClearItems();
this.BackgroundColor = loadingBackgroundColor;
contentView.Visible = false;
loadingIndicator.Visible = true;
await Task.Run(() =>
{
container.Load();
});
loadingIndicator.Visible = false;
this.BackgroundColor = Color.Transparent;
contentView.Visible = true;
container.Parent = ActiveContainer;
SetActiveContainer(container);
}