mirror of
https://github.com/Hofknecht/SystemTrayMenu.git
synced 2024-09-06 20:51:15 +12:00
642 lines
23 KiB
C#
642 lines
23 KiB
C#
// <copyright file="KeyboardInput.cs" company="PlaceholderCompany">
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// Copyright (c) PlaceholderCompany. All rights reserved.
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// </copyright>
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namespace SystemTrayMenu.Handler
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{
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using System;
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using System.Globalization;
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using System.Linq;
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using System.Windows.Controls;
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using System.Windows.Input;
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using SystemTrayMenu.DataClasses;
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using SystemTrayMenu.Helpers;
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using SystemTrayMenu.Utilities;
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using static SystemTrayMenu.UserInterface.Menu;
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using Menu = SystemTrayMenu.UserInterface.Menu;
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internal class KeyboardInput : IDisposable
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{
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private readonly Menu?[] menus;
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private readonly KeyboardHook hook = new();
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private int iRowKey = -1;
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private Menu? focussedMenu;
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public KeyboardInput(Menu?[] menus)
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{
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this.menus = menus;
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}
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internal event Action? HotKeyPressed;
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internal event Action? ClosePressed;
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internal event Action<ListView, ListViewItemData>? RowSelected;
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internal event Action<int, ListView?>? RowDeselected;
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internal event Action<ListView, ListViewItemData>? EnterPressed;
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internal bool InUse { get; set; }
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public void Dispose()
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{
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hook.Dispose();
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}
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internal void RegisterHotKey()
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{
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if (!string.IsNullOrEmpty(Properties.Settings.Default.HotKey))
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{
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try
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{
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hook.RegisterHotKey();
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hook.KeyPressed += (sender, e) => HotKeyPressed?.Invoke();
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}
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catch (InvalidOperationException ex)
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{
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Log.Warn($"key:'{Properties.Settings.Default.HotKey}'", ex);
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Properties.Settings.Default.HotKey = string.Empty;
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Properties.Settings.Default.Save();
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}
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}
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}
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internal void ResetSelectedByKey()
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{
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iRowKey = -1;
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focussedMenu = null;
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}
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internal void CmdKeyProcessed(Menu sender, Key key, ModifierKeys modifiers)
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{
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switch (key)
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{
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case Key.Enter:
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if (modifiers == ModifierKeys.None)
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{
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SelectByKey(key, modifiers);
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focussedMenu?.FocusTextBox();
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}
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break;
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case Key.Left:
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case Key.Right:
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case Key.Home:
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case Key.End:
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case Key.Up:
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case Key.Down:
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case Key.Escape:
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if (modifiers == ModifierKeys.None)
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{
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SelectByKey(key, modifiers);
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}
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break;
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case Key.F4:
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if (modifiers == ModifierKeys.Alt)
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{
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SelectByKey(key, modifiers);
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}
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break;
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case Key.F:
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if (modifiers == ModifierKeys.Control)
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{
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focussedMenu?.FocusTextBox();
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}
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break;
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case Key.Tab:
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if (modifiers == ModifierKeys.None)
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{
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int indexOfTheCurrentMenu = GetMenuIndex(sender);
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int indexMax = menus.Where(m => m != null).Count() - 1;
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int indexNew = 0;
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if (indexOfTheCurrentMenu > 0)
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{
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indexNew = indexOfTheCurrentMenu - 1;
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}
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else
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{
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indexNew = indexMax;
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}
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menus[indexNew]?.FocusTextBox();
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}
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else if (modifiers == ModifierKeys.Shift)
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{
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int indexOfTheCurrentMenu = GetMenuIndex(sender);
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int indexMax = menus.Where(m => m != null).Count() - 1;
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int indexNew = 0;
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if (indexOfTheCurrentMenu < indexMax)
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{
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indexNew = indexOfTheCurrentMenu + 1;
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}
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else
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{
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indexNew = 0;
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}
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menus[indexNew]?.FocusTextBox();
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}
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break;
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case Key.Apps:
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if (modifiers == ModifierKeys.None)
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{
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ListView? dgv = focussedMenu?.GetDataGridView();
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if (dgv != null)
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{
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if (iRowKey > -1 && dgv.Items.Count > iRowKey)
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{
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#if TODO // WPF: Better way to open context menu (as it looks like this is the code's intention)
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Point point = dgv.GetCellDisplayRectangle(2, iRowKey, false).Location;
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RowData trigger = (RowData)dgv.Rows[iRowKey].Cells[2].Value;
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MouseEventArgs mouseEventArgs = new(MouseButtons.Right, 1, point.X, point.Y, 0);
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trigger.MouseDown(dgv, mouseEventArgs);
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#endif
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}
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}
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}
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break;
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default:
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break;
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}
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int GetMenuIndex(in Menu? currentMenu)
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{
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int index = 0;
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foreach (Menu? menuFindIndex in menus.Where(m => m != null))
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{
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if (currentMenu == menuFindIndex)
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{
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break;
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}
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index++;
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}
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return index;
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}
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}
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internal void SearchTextChanging()
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{
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ClearIsSelectedByKey();
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}
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internal void SearchTextChanged(Menu menu, bool isSearchStringEmpty)
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{
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if (isSearchStringEmpty)
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{
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ClearIsSelectedByKey();
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}
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else
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{
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ListView? dgv = menu.GetDataGridView();
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if (dgv != null)
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{
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if (dgv.Items.Count > 0)
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{
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Select(dgv, (ListViewItemData)dgv.Items[0], true);
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}
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}
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}
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}
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internal void ClearIsSelectedByKey()
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{
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ClearIsSelectedByKey(focussedMenu, iRowKey);
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}
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internal void Select(ListView dgv, ListViewItemData itemData, bool refreshview)
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{
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int index = dgv.Items.IndexOf(itemData); // TODO: Remove index (work with instance instead)
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Menu menu = (Menu)dgv.GetParentWindow();
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if (index != iRowKey || menu != focussedMenu)
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{
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ClearIsSelectedByKey();
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}
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iRowKey = index;
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focussedMenu = menu;
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RowData rowData = itemData.data;
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if (rowData != null)
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{
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rowData.IsSelected = true;
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}
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if (refreshview)
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{
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if (dgv.SelectedItems.Contains(itemData))
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{
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dgv.SelectedItems.Remove(itemData);
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}
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dgv.SelectedItems.Add(itemData);
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}
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}
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private bool IsAnyMenuSelectedByKey(
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ref ListView? dgv,
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ref Menu? subMenu,
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ref string textSelected)
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{
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Menu? menu = focussedMenu;
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bool isStillSelected = false;
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if (menu != null && iRowKey > -1)
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{
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dgv = menu.GetDataGridView();
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if (dgv != null)
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{
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if (dgv.Items.Count > iRowKey)
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{
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ListViewItemData itemData = (ListViewItemData)dgv.Items[iRowKey];
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RowData rowData = itemData.data;
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if (rowData.IsSelected)
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{
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isStillSelected = true;
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subMenu = rowData.SubMenu;
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textSelected = itemData.ColumnText;
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}
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}
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}
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}
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return isStillSelected;
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}
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private void SelectByKey(Key key, ModifierKeys modifiers, string keyInput = "", bool keepSelection = false)
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{
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int iRowBefore = iRowKey;
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Menu? menuBefore = focussedMenu;
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Menu? menu = focussedMenu;
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ListView? dgv = null;
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ListView? dgvBefore = null;
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Menu? menuFromSelected = null;
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string textselected = string.Empty;
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bool isStillSelected = IsAnyMenuSelectedByKey(ref dgv, ref menuFromSelected, ref textselected);
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if (isStillSelected)
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{
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if (keepSelection)
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{
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// If current selection is still valid for this search then skip selecting different item
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if (textselected.StartsWith(keyInput, true, CultureInfo.InvariantCulture))
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{
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return;
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}
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}
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dgvBefore = dgv;
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}
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else
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{
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ResetSelectedByKey();
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menu = focussedMenu;
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dgv = menu?.GetDataGridView();
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}
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bool toClear = false;
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bool handled = false;
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switch (key)
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{
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case Key.Enter:
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if ((modifiers == ModifierKeys.None) && (iRowKey > -1 && dgv != null && dgv.Items.Count > iRowKey))
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{
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ListViewItemData itemData = (ListViewItemData)dgv.Items[iRowKey];
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RowData trigger = itemData.data;
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if (trigger.IsMenuOpen || !trigger.IsPointingToFolder)
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{
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trigger.OpenItem(out bool doCloseAfterOpen);
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if (doCloseAfterOpen)
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{
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ClosePressed?.Invoke();
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}
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}
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else
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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EnterPressed?.Invoke(dgv, itemData);
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}
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handled = true;
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}
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break;
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case Key.Up:
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if ((modifiers == ModifierKeys.None) &&
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dgv != null &&
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(SelectMatchedReverse(dgv, iRowKey) ||
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SelectMatchedReverse(dgv, dgv.Items.Count - 1)))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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handled = true;
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}
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break;
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case Key.Down:
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if ((modifiers == ModifierKeys.None) &&
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(SelectMatched(dgv, iRowKey) ||
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SelectMatched(dgv, 0)))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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handled = true;
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}
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break;
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case Key.Home:
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if ((modifiers == ModifierKeys.None) && SelectMatched(dgv, 0))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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handled = true;
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}
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break;
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case Key.End:
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if ((modifiers == ModifierKeys.None) &&
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dgv != null &&
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SelectMatchedReverse(dgv, dgv.Items.Count - 1))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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handled = true;
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}
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break;
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case Key.Left:
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if (modifiers == ModifierKeys.None &&
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dgv != null &&
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dgvBefore != null)
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{
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Menu? nextMenu = focussedMenu?.SubMenu;
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bool nextMenuLocationIsLeft = nextMenu != null && menu != null && nextMenu.Location.X < menu.Location.X;
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Menu? previousMenu = focussedMenu?.ParentMenu;
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bool previousMenuLocationIsRight = previousMenu != null && menu != null && menu.Location.X < previousMenu.Location.X;
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if (nextMenuLocationIsLeft || previousMenuLocationIsRight)
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{
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SelectNextMenu(iRowBefore, ref dgv, dgvBefore, menuFromSelected, isStillSelected, ref toClear);
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}
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else if (focussedMenu?.Level > 0)
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{
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SelectPreviousMenu(iRowBefore, ref menu, ref dgv, dgvBefore, ref toClear);
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}
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handled = true;
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}
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break;
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case Key.Right:
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if (modifiers == ModifierKeys.None &&
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dgv != null &&
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dgvBefore != null)
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{
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bool nextMenuLocationIsRight = focussedMenu?.SubMenu?.Location.X > focussedMenu?.Location.X;
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bool previousMenuLocationIsLeft = focussedMenu?.Location.X > focussedMenu?.ParentMenu?.Location.X;
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if (nextMenuLocationIsRight || previousMenuLocationIsLeft)
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{
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SelectNextMenu(iRowBefore, ref dgv, dgvBefore, menuFromSelected, isStillSelected, ref toClear);
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}
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else if (focussedMenu?.Level > 0)
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{
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SelectPreviousMenu(iRowBefore, ref menu, ref dgv, dgvBefore, ref toClear);
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}
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handled = true;
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}
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break;
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case Key.Escape:
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case Key.F4:
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if ((key == Key.Escape && modifiers == ModifierKeys.None) ||
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(key == Key.F4 && modifiers == ModifierKeys.Alt))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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ResetSelectedByKey();
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toClear = true;
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ClosePressed?.Invoke();
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handled = true;
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}
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break;
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default:
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break;
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}
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if (!handled)
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{
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if (!string.IsNullOrEmpty(keyInput))
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{
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if (SelectMatched(dgv, iRowKey, keyInput) ||
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SelectMatched(dgv, 0, keyInput))
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{
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RowDeselected?.Invoke(iRowBefore, null);
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SelectRow(dgv, iRowKey);
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toClear = true;
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}
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else if (isStillSelected)
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{
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iRowKey = iRowBefore - 1;
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if (SelectMatched(dgv, iRowKey, keyInput) ||
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SelectMatched(dgv, 0, keyInput))
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{
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RowDeselected?.Invoke(iRowBefore, null);
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SelectRow(dgv, iRowKey);
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}
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else
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{
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iRowKey = iRowBefore;
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}
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}
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}
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}
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if (isStillSelected && toClear)
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{
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ClearIsSelectedByKey(menuBefore, iRowBefore);
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}
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}
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private void SelectPreviousMenu(int iRowBefore, ref Menu? menu, ref ListView? dgv, ListView? dgvBefore, ref bool toClear)
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{
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if (focussedMenu?.Level > 0)
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{
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if (focussedMenu.ParentMenu != null)
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{
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iRowKey = -1;
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menu = focussedMenu = focussedMenu.ParentMenu;
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dgv = menu?.GetDataGridView();
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if (dgv != null)
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{
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if (SelectMatched(dgv, dgv.Items.IndexOf(dgv.SelectedItems.Count > 0 ? dgv.SelectedItems[0] : null)) ||
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SelectMatched(dgv, 0))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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}
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}
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}
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}
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else
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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ResetSelectedByKey();
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toClear = true;
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}
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}
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private void SelectNextMenu(int iRowBefore, ref ListView? dgv, ListView dgvBefore, Menu? menuFromSelected, bool isStillSelected, ref bool toClear)
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{
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if (isStillSelected)
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{
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if (menuFromSelected != null &&
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menuFromSelected == focussedMenu?.SubMenu)
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{
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dgv = menuFromSelected?.GetDataGridView();
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if (dgv != null && dgv.Items.Count > 0)
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{
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focussedMenu = menuFromSelected;
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iRowKey = -1;
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if (SelectMatched(dgv, iRowKey) ||
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SelectMatched(dgv, 0))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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}
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}
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}
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}
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else
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{
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focussedMenu = menus[0];
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while (focussedMenu?.SubMenu != null)
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{
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focussedMenu = focussedMenu.SubMenu;
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}
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iRowKey = -1;
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Menu? lastMenu = focussedMenu;
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if (lastMenu != null)
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{
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dgv = lastMenu?.GetDataGridView();
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if (SelectMatched(dgv, iRowKey) ||
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SelectMatched(dgv, 0))
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{
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RowDeselected?.Invoke(iRowBefore, dgvBefore);
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SelectRow(dgv, iRowKey);
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toClear = true;
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}
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}
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}
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}
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private void SelectRow(ListView? dgv, int iRowKey)
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{
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if (dgv != null && dgv.Items.Count > iRowKey)
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{
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InUse = true;
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RowSelected?.Invoke(dgv, (ListViewItemData)dgv.Items[iRowKey]);
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}
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}
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private bool SelectMatched(ListView? dgv, int indexStart, string keyInput = "")
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{
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bool found = false;
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if (dgv != null)
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{
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for (int i = indexStart; i < dgv.Items.Count; i++)
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{
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if (Select(dgv, i, keyInput))
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{
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found = true;
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break;
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}
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}
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}
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return found;
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}
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private bool SelectMatchedReverse(ListView? dgv, int indexStart, string keyInput = "")
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{
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bool found = false;
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for (int i = indexStart; i > -1; i--)
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{
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if (Select(dgv, i, keyInput))
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{
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found = true;
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break;
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}
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|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
private bool Select(ListView? dgv, int i, string keyInput = "")
|
|
{
|
|
bool found = false;
|
|
if (i > -1 &&
|
|
i != iRowKey &&
|
|
dgv != null &&
|
|
dgv.Items.Count > i)
|
|
{
|
|
ListViewItemData itemData = (ListViewItemData)dgv.Items[i];
|
|
RowData rowData = itemData.data;
|
|
if (itemData.ColumnText.StartsWith(keyInput, true, CultureInfo.InvariantCulture))
|
|
{
|
|
iRowKey = rowData.RowIndex;
|
|
rowData.IsSelected = true;
|
|
if (dgv.SelectedItems.Contains(itemData))
|
|
{
|
|
dgv.SelectedItems.Remove(itemData);
|
|
}
|
|
|
|
dgv.SelectedItems.Add(itemData);
|
|
dgv.ScrollIntoView(itemData);
|
|
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
private void ClearIsSelectedByKey(Menu? menu, int rowIndex)
|
|
{
|
|
if (menu != null && rowIndex > -1)
|
|
{
|
|
ListView? dgv = menu?.GetDataGridView();
|
|
if (dgv != null && dgv.Items.Count > rowIndex)
|
|
{
|
|
Menu.ListViewItemData itemData = (Menu.ListViewItemData)dgv.Items[rowIndex];
|
|
RowData rowData = itemData.data;
|
|
if (dgv.SelectedItems.Contains(itemData))
|
|
{
|
|
dgv.SelectedItems.Remove(itemData);
|
|
}
|
|
|
|
if (rowData != null)
|
|
{
|
|
rowData.IsSelected = false;
|
|
rowData.IsClicking = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|