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SEBWIN-326: Disabled close button for main browser window.

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This commit is contained in:
dbuechel 2019-05-08 11:02:59 +02:00
parent 305110f239
commit 931228b6f1
4 changed files with 59 additions and 0 deletions
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9
SafeExamBrowser.UserInterface.Desktop/BrowserWindow.xaml.cs
View file

@ -142,6 +142,14 @@ namespace SafeExamBrowser.UserInterface.Desktop
}
}
private void BrowserWindow_Loaded(object sender, RoutedEventArgs e)
{
if (isMainWindow)
{
WindowUtility.DisableCloseButtonFor(this);
}
}
private CustomPopupPlacement[] MenuPopup_PlacementCallback(Size popupSize, Size targetSize, Point offset)
{
return new[]
@ -196,6 +204,7 @@ namespace SafeExamBrowser.UserInterface.Desktop
BackwardButton.Click += (o, args) => BackwardNavigationRequested?.Invoke();
Closing += BrowserWindow_Closing;
ForwardButton.Click += (o, args) => ForwardNavigationRequested?.Invoke();
Loaded += BrowserWindow_Loaded;
MenuButton.Click += (o, args) => MenuPopup.IsOpen = !MenuPopup.IsOpen;
MenuButton.MouseLeave += (o, args) => Task.Delay(250).ContinueWith(_ => Dispatcher.Invoke(() => MenuPopup.IsOpen = MenuPopup.IsMouseOver));
MenuPopup.CustomPopupPlacementCallback = new CustomPopupPlacementCallback(MenuPopup_PlacementCallback);

9
SafeExamBrowser.UserInterface.Mobile/BrowserWindow.xaml.cs
View file

@ -142,6 +142,14 @@ namespace SafeExamBrowser.UserInterface.Mobile
}
}
private void BrowserWindow_Loaded(object sender, RoutedEventArgs e)
{
if (isMainWindow)
{
WindowUtility.DisableCloseButtonFor(this);
}
}
private CustomPopupPlacement[] MenuPopup_PlacementCallback(Size popupSize, Size targetSize, Point offset)
{
return new[]
@ -196,6 +204,7 @@ namespace SafeExamBrowser.UserInterface.Mobile
BackwardButton.Click += (o, args) => BackwardNavigationRequested?.Invoke();
Closing += BrowserWindow_Closing;
ForwardButton.Click += (o, args) => ForwardNavigationRequested?.Invoke();
Loaded += BrowserWindow_Loaded;
MenuButton.Click += (o, args) => MenuPopup.IsOpen = !MenuPopup.IsOpen;
MenuButton.MouseLeave += (o, args) => Task.Delay(250).ContinueWith(_ => Dispatcher.Invoke(() => MenuPopup.IsOpen = MenuPopup.IsMouseOver));
MenuPopup.CustomPopupPlacementCallback = new CustomPopupPlacementCallback(MenuPopup_PlacementCallback);

1
SafeExamBrowser.UserInterface.Shared/SafeExamBrowser.UserInterface.Shared.csproj
View file

@ -67,6 +67,7 @@
<Compile Include="Utilities\IconResourceLoader.cs" />
<Compile Include="Utilities\UrlRandomizer.cs" />
<Compile Include="Utilities\VisualExtensions.cs" />
<Compile Include="Utilities\WindowUtility.cs" />
<Compile Include="Utilities\XamlIconResource.cs" />
</ItemGroup>
<ItemGroup>

40
SafeExamBrowser.UserInterface.Shared/Utilities/WindowUtility.cs Normal file
View file

@ -0,0 +1,40 @@
/*
* Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
namespace SafeExamBrowser.UserInterface.Shared.Utilities
{
public static class WindowUtility
{
private const uint MF_BYCOMMAND = 0x00000000;
private const uint MF_GRAYED = 0x00000001;
private const uint MF_ENABLED = 0x00000000;
private const uint SC_CLOSE = 0xF060;
public static void DisableCloseButtonFor(Window window)
{
var handle = new WindowInteropHelper(window);
var systemMenu = GetSystemMenu(handle.Handle, false);
if (systemMenu != IntPtr.Zero)
{
EnableMenuItem(systemMenu, SC_CLOSE, MF_BYCOMMAND | MF_GRAYED);
}
}
[DllImport("user32.dll")]
private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);
[DllImport("user32.dll")]
private static extern bool EnableMenuItem(IntPtr hMenu, uint uIDEnableItem, uint uEnable);
}
}