97 lines
2.8 KiB
C#
97 lines
2.8 KiB
C#
/*
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* Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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using System.Windows.Threading;
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using SafeExamBrowser.Contracts.Applications;
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using SafeExamBrowser.Contracts.UserInterface.Shell;
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using SafeExamBrowser.Contracts.UserInterface.Shell.Events;
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using SafeExamBrowser.UserInterface.Shared.Utilities;
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namespace SafeExamBrowser.UserInterface.Desktop.Controls
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{
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public partial class TaskbarApplicationControl : UserControl, IApplicationControl
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{
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private IApplicationInfo info;
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private IList<IApplicationInstance> instances = new List<IApplicationInstance>();
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public event ApplicationControlClickedEventHandler Clicked;
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public TaskbarApplicationControl(IApplicationInfo info)
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{
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this.info = info;
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InitializeComponent();
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InitializeApplicationControl();
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}
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public void RegisterInstance(IApplicationInstance instance)
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{
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Dispatcher.Invoke(() =>
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{
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var instanceButton = new TaskbarApplicationInstanceButton(instance, info);
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instanceButton.Clicked += (id) => Clicked?.Invoke(id);
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instance.Terminated += (id) => Instance_OnTerminated(id, instanceButton);
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instances.Add(instance);
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InstanceStackPanel.Children.Add(instanceButton);
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});
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}
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private void InitializeApplicationControl()
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{
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var originalBrush = Button.Background;
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Button.ToolTip = info.Tooltip;
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Button.Content = IconResourceLoader.Load(info.IconResource);
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Button.MouseEnter += (o, args) => InstancePopup.IsOpen = instances.Count > 1;
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Button.MouseLeave += (o, args) => Task.Delay(250).ContinueWith(_ => Dispatcher.Invoke(() => InstancePopup.IsOpen = InstancePopup.IsMouseOver));
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InstancePopup.MouseLeave += (o, args) => Task.Delay(250).ContinueWith(_ => Dispatcher.Invoke(() => InstancePopup.IsOpen = IsMouseOver));
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InstancePopup.Opened += (o, args) =>
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{
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Background = Brushes.LightGray;
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Button.Background = Brushes.LightGray;
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};
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InstancePopup.Closed += (o, args) =>
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{
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Background = originalBrush;
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Button.Background = originalBrush;
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};
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}
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private void Button_Click(object sender, RoutedEventArgs e)
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{
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if (instances.Count <= 1)
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{
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Clicked?.Invoke(instances.FirstOrDefault()?.Id);
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}
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else
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{
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InstancePopup.IsOpen = true;
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}
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}
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private void Instance_OnTerminated(InstanceIdentifier id, TaskbarApplicationInstanceButton instanceButton)
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{
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Dispatcher.InvokeAsync(() =>
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{
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instances.Remove(instances.FirstOrDefault(i => i.Id == id));
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InstanceStackPanel.Children.Remove(instanceButton);
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});
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}
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}
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}
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