69 lines
2.1 KiB
C#
69 lines
2.1 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using Microsoft.Maui.Platform.Linux.Native;
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namespace Microsoft.Maui.Platform.Linux.Services;
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public static class GtkContextMenuService
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{
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[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
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private delegate void ActivateCallback(IntPtr menuItem, IntPtr userData);
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private static readonly List<ActivateCallback> _callbacks = new List<ActivateCallback>();
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private static readonly List<Action> _actions = new List<Action>();
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public static void ShowContextMenu(List<GtkMenuItem> items)
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{
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if (items == null || items.Count == 0)
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{
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return;
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}
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_callbacks.Clear();
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_actions.Clear();
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IntPtr intPtr = GtkNative.gtk_menu_new();
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if (intPtr == IntPtr.Zero)
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{
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Console.WriteLine("[GtkContextMenuService] Failed to create GTK menu");
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return;
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}
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foreach (GtkMenuItem item in items)
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{
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IntPtr intPtr2;
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if (item.IsSeparator)
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{
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intPtr2 = GtkNative.gtk_separator_menu_item_new();
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}
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else
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{
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intPtr2 = GtkNative.gtk_menu_item_new_with_label(item.Text);
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GtkNative.gtk_widget_set_sensitive(intPtr2, item.IsEnabled);
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if (item.IsEnabled && item.Action != null)
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{
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Action action = item.Action;
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_actions.Add(action);
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int actionIndex = _actions.Count - 1;
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ActivateCallback activateCallback = delegate
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{
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Console.WriteLine("[GtkContextMenuService] Menu item activated: " + item.Text);
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_actions[actionIndex]?.Invoke();
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};
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_callbacks.Add(activateCallback);
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GtkNative.g_signal_connect_data(intPtr2, "activate", Marshal.GetFunctionPointerForDelegate(activateCallback), IntPtr.Zero, IntPtr.Zero, 0);
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}
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}
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GtkNative.gtk_menu_shell_append(intPtr, intPtr2);
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GtkNative.gtk_widget_show(intPtr2);
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}
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GtkNative.gtk_widget_show(intPtr);
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IntPtr intPtr3 = GtkNative.gtk_get_current_event();
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GtkNative.gtk_menu_popup_at_pointer(intPtr, intPtr3);
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if (intPtr3 != IntPtr.Zero)
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{
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GtkNative.gdk_event_free(intPtr3);
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}
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Console.WriteLine($"[GtkContextMenuService] Showed GTK menu with {items.Count} items");
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}
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}
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