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CmdPal: Add a dock (#45824)
Add support for a "dock" window in CmdPal. The dock is a toolbar powered by the `APPBAR` APIs. This gives you a persistent region to display commands for quick shortcuts or glanceable widgets. The dock can be pinned to any side of the screen. The dock can be independently styled with any of the theming controls cmdpal already has The dock has three "regions" to pin to - the "start", the "center", and the "end". Elements on the dock are grouped as "bands", which contains a set of "items". Each "band" is one atomic unit. For example, the Media Player extension produces 4 items, but one _band_. The dock has only one size (for now) The dock will only appear on your primary display (for now) This PR includes support for pinning arbitrary top-level commands to the dock - however, we're planning on replacing that with a more universal ability to pin any command to the dock or top level. (see #45191). This is at least usable for now. This is definitely still _even more preview_ than usual PowerToys features, but it's more than usable. I'd love to get it out there and start collecting feedback on where to improve next. I'll probably add a follow-up issue for tracking the remaining bugs & nits. closes #45201 --------- Co-authored-by: Niels Laute <niels.laute@live.nl>
This commit is contained in:
Mike Griese
@@ -0,0 +1,633 @@
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// Copyright (c) Microsoft Corporation
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.Collections.ObjectModel;
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using CommunityToolkit.Mvvm.Messaging;
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using ManagedCommon;
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using Microsoft.CmdPal.UI.Messages;
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using Microsoft.CmdPal.UI.ViewModels.Messages;
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using Microsoft.CmdPal.UI.ViewModels.Settings;
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using Microsoft.CommandPalette.Extensions.Toolkit;
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namespace Microsoft.CmdPal.UI.ViewModels.Dock;
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public sealed partial class DockViewModel
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{
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private readonly TopLevelCommandManager _topLevelCommandManager;
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private readonly SettingsModel _settingsModel;
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private readonly DockPageContext _pageContext; // only to be used for our own context menu - not for dock bands themselves
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private readonly IContextMenuFactory _contextMenuFactory;
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private DockSettings _settings;
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public TaskScheduler Scheduler { get; }
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public ObservableCollection<DockBandViewModel> StartItems { get; } = new();
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public ObservableCollection<DockBandViewModel> CenterItems { get; } = new();
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public ObservableCollection<DockBandViewModel> EndItems { get; } = new();
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public ObservableCollection<TopLevelViewModel> AllItems => _topLevelCommandManager.DockBands;
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public DockViewModel(
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TopLevelCommandManager tlcManager,
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IContextMenuFactory contextMenuFactory,
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SettingsModel settings,
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TaskScheduler scheduler)
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{
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_topLevelCommandManager = tlcManager;
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_contextMenuFactory = contextMenuFactory;
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_settingsModel = settings;
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_settings = settings.DockSettings;
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Scheduler = scheduler;
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_pageContext = new(this);
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_topLevelCommandManager.DockBands.CollectionChanged += DockBands_CollectionChanged;
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}
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private void DockBands_CollectionChanged(object? sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
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{
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Logger.LogDebug("Starting DockBands_CollectionChanged");
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SetupBands();
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Logger.LogDebug("Ended DockBands_CollectionChanged");
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}
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public void UpdateSettings(DockSettings settings)
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{
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Logger.LogDebug($"DockViewModel.UpdateSettings");
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_settings = settings;
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SetupBands();
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}
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private void SetupBands()
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{
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Logger.LogDebug($"Setting up dock bands");
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SetupBands(_settings.StartBands, StartItems);
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SetupBands(_settings.CenterBands, CenterItems);
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SetupBands(_settings.EndBands, EndItems);
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}
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private void SetupBands(
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List<DockBandSettings> bands,
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ObservableCollection<DockBandViewModel> target)
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{
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List<DockBandViewModel> newBands = new();
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foreach (var band in bands)
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{
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var commandId = band.CommandId;
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var topLevelCommand = _topLevelCommandManager.LookupDockBand(commandId);
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if (topLevelCommand is null)
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{
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Logger.LogWarning($"Failed to find band {commandId}");
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}
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if (topLevelCommand is not null)
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{
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// note: CreateBandItem doesn't actually initialize the band, it
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// just creates the VM. Callers need to make sure to call
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// InitializeProperties() on a BG thread elsewhere
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var bandVm = CreateBandItem(band, topLevelCommand.ItemViewModel);
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newBands.Add(bandVm);
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}
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}
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var beforeCount = target.Count;
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var afterCount = newBands.Count;
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DoOnUiThread(() =>
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{
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List<DockBandViewModel> removed = new();
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ListHelpers.InPlaceUpdateList(target, newBands, out removed);
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var isStartBand = target == StartItems;
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var label = isStartBand ? "Start bands:" : "End bands:";
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Logger.LogDebug($"{label} ({beforeCount}) -> ({afterCount}), Removed {removed?.Count ?? 0} items");
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// then, back to a BG thread:
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Task.Run(() =>
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{
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if (removed is not null)
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{
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foreach (var removedItem in removed)
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{
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removedItem.SafeCleanup();
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}
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}
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});
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});
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// Initialize properties on BG thread
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Task.Run(() =>
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{
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foreach (var band in newBands)
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{
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band.SafeInitializePropertiesSynchronous();
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}
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});
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}
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/// <summary>
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/// Instantiate a new band view model for this CommandItem, given the
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/// settings. The DockBandViewModel will _not_ be initialized - callers
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/// will need to make sure to initialize it somewhere else (off the UI
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/// thread)
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/// </summary>
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private DockBandViewModel CreateBandItem(
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DockBandSettings bandSettings,
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CommandItemViewModel commandItem)
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{
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DockBandViewModel band = new(commandItem, commandItem.PageContext, bandSettings, _settings, SaveSettings, _contextMenuFactory);
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// the band is NOT initialized here!
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return band;
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}
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private void SaveSettings()
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{
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SettingsModel.SaveSettings(_settingsModel);
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}
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public DockBandViewModel? FindBandByTopLevel(TopLevelViewModel tlc)
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{
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var id = tlc.Id;
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return FindBandById(id);
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}
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public DockBandViewModel? FindBandById(string id)
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{
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foreach (var band in StartItems)
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{
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if (band.Id == id)
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{
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return band;
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}
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}
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foreach (var band in CenterItems)
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{
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if (band.Id == id)
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{
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return band;
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}
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}
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foreach (var band in EndItems)
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{
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if (band.Id == id)
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{
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return band;
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}
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}
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return null;
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}
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/// <summary>
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/// Syncs the band position in settings after a same-list reorder.
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/// Does not save to disk - call SaveBandOrder() when done editing.
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/// </summary>
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public void SyncBandPosition(DockBandViewModel band, DockPinSide targetSide, int targetIndex)
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{
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var bandId = band.Id;
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var dockSettings = _settingsModel.DockSettings;
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var bandSettings = dockSettings.StartBands.FirstOrDefault(b => b.CommandId == bandId)
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?? dockSettings.CenterBands.FirstOrDefault(b => b.CommandId == bandId)
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?? dockSettings.EndBands.FirstOrDefault(b => b.CommandId == bandId);
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if (bandSettings == null)
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{
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return;
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}
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// Remove from all settings lists
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dockSettings.StartBands.RemoveAll(b => b.CommandId == bandId);
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dockSettings.CenterBands.RemoveAll(b => b.CommandId == bandId);
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dockSettings.EndBands.RemoveAll(b => b.CommandId == bandId);
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// Add to target settings list at the correct index
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var targetSettings = targetSide switch
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{
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DockPinSide.Start => dockSettings.StartBands,
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DockPinSide.Center => dockSettings.CenterBands,
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DockPinSide.End => dockSettings.EndBands,
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_ => dockSettings.StartBands,
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};
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var insertIndex = Math.Min(targetIndex, targetSettings.Count);
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targetSettings.Insert(insertIndex, bandSettings);
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}
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/// <summary>
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/// Moves a dock band to a new position (cross-list drop).
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/// Does not save to disk - call SaveBandOrder() when done editing.
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/// </summary>
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public void MoveBandWithoutSaving(DockBandViewModel band, DockPinSide targetSide, int targetIndex)
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{
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var bandId = band.Id;
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var dockSettings = _settingsModel.DockSettings;
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var bandSettings = dockSettings.StartBands.FirstOrDefault(b => b.CommandId == bandId)
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?? dockSettings.CenterBands.FirstOrDefault(b => b.CommandId == bandId)
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?? dockSettings.EndBands.FirstOrDefault(b => b.CommandId == bandId);
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if (bandSettings == null)
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{
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Logger.LogWarning($"Could not find band settings for band {bandId}");
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return;
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}
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// Remove from all sides (settings and UI)
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dockSettings.StartBands.RemoveAll(b => b.CommandId == bandId);
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dockSettings.CenterBands.RemoveAll(b => b.CommandId == bandId);
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dockSettings.EndBands.RemoveAll(b => b.CommandId == bandId);
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StartItems.Remove(band);
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CenterItems.Remove(band);
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EndItems.Remove(band);
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// Add to the target side at the specified index
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switch (targetSide)
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{
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case DockPinSide.Start:
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{
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var settingsIndex = Math.Min(targetIndex, dockSettings.StartBands.Count);
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dockSettings.StartBands.Insert(settingsIndex, bandSettings);
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var uiIndex = Math.Min(targetIndex, StartItems.Count);
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StartItems.Insert(uiIndex, band);
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break;
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}
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case DockPinSide.Center:
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{
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var settingsIndex = Math.Min(targetIndex, dockSettings.CenterBands.Count);
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dockSettings.CenterBands.Insert(settingsIndex, bandSettings);
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var uiIndex = Math.Min(targetIndex, CenterItems.Count);
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CenterItems.Insert(uiIndex, band);
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break;
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}
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case DockPinSide.End:
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{
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var settingsIndex = Math.Min(targetIndex, dockSettings.EndBands.Count);
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dockSettings.EndBands.Insert(settingsIndex, bandSettings);
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var uiIndex = Math.Min(targetIndex, EndItems.Count);
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EndItems.Insert(uiIndex, band);
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break;
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}
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}
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Logger.LogDebug($"Moved band {bandId} to {targetSide} at index {targetIndex} (not saved yet)");
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}
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/// <summary>
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/// Saves the current band order and label settings to settings.
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/// Call this when exiting edit mode.
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/// </summary>
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public void SaveBandOrder()
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{
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// Save ShowLabels for all bands
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foreach (var band in StartItems.Concat(CenterItems).Concat(EndItems))
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{
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band.SaveShowLabels();
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}
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_snapshotStartBands = null;
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_snapshotCenterBands = null;
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_snapshotEndBands = null;
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_snapshotBandViewModels = null;
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SettingsModel.SaveSettings(_settingsModel);
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Logger.LogDebug("Saved band order to settings");
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}
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private List<DockBandSettings>? _snapshotStartBands;
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private List<DockBandSettings>? _snapshotCenterBands;
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private List<DockBandSettings>? _snapshotEndBands;
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private Dictionary<string, DockBandViewModel>? _snapshotBandViewModels;
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/// <summary>
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/// Takes a snapshot of the current band order and label settings before editing.
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/// Call this when entering edit mode.
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/// </summary>
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public void SnapshotBandOrder()
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{
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var dockSettings = _settingsModel.DockSettings;
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_snapshotStartBands = dockSettings.StartBands.Select(b => b.Clone()).ToList();
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_snapshotCenterBands = dockSettings.CenterBands.Select(b => b.Clone()).ToList();
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_snapshotEndBands = dockSettings.EndBands.Select(b => b.Clone()).ToList();
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// Snapshot band ViewModels so we can restore unpinned bands
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// Use a dictionary but handle potential duplicates gracefully
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_snapshotBandViewModels = new Dictionary<string, DockBandViewModel>();
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foreach (var band in StartItems.Concat(CenterItems).Concat(EndItems))
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{
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_snapshotBandViewModels.TryAdd(band.Id, band);
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}
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// Snapshot ShowLabels for all bands
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foreach (var band in _snapshotBandViewModels.Values)
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{
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band.SnapshotShowLabels();
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}
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Logger.LogDebug($"Snapshot taken: {_snapshotStartBands.Count} start bands, {_snapshotCenterBands.Count} center bands, {_snapshotEndBands.Count} end bands");
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}
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/// <summary>
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/// Restores the band order and label settings from the snapshot taken when entering edit mode.
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/// Call this when discarding edit mode changes.
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/// </summary>
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public void RestoreBandOrder()
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{
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if (_snapshotStartBands == null ||
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_snapshotCenterBands == null ||
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_snapshotEndBands == null || _snapshotBandViewModels == null)
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{
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Logger.LogWarning("No snapshot to restore from");
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return;
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}
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// Restore ShowLabels for all snapshotted bands
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foreach (var band in _snapshotBandViewModels.Values)
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{
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band.RestoreShowLabels();
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}
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var dockSettings = _settingsModel.DockSettings;
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// Restore settings from snapshot
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dockSettings.StartBands.Clear();
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dockSettings.CenterBands.Clear();
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dockSettings.EndBands.Clear();
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foreach (var bandSnapshot in _snapshotStartBands)
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{
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var bandSettings = bandSnapshot.Clone();
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dockSettings.StartBands.Add(bandSettings);
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}
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foreach (var bandSnapshot in _snapshotCenterBands)
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{
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var bandSettings = bandSnapshot.Clone();
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dockSettings.CenterBands.Add(bandSettings);
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}
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foreach (var bandSnapshot in _snapshotEndBands)
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{
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var bandSettings = bandSnapshot.Clone();
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dockSettings.EndBands.Add(bandSettings);
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}
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// Rebuild UI collections from restored settings using the snapshotted ViewModels
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RebuildUICollectionsFromSnapshot();
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_snapshotStartBands = null;
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_snapshotCenterBands = null;
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_snapshotEndBands = null;
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_snapshotBandViewModels = null;
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Logger.LogDebug("Restored band order from snapshot");
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}
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private void RebuildUICollectionsFromSnapshot()
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{
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if (_snapshotBandViewModels == null)
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{
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return;
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}
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var dockSettings = _settingsModel.DockSettings;
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StartItems.Clear();
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CenterItems.Clear();
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EndItems.Clear();
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foreach (var bandSettings in dockSettings.StartBands)
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{
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if (_snapshotBandViewModels.TryGetValue(bandSettings.CommandId, out var bandVM))
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{
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StartItems.Add(bandVM);
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}
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}
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foreach (var bandSettings in dockSettings.CenterBands)
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{
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if (_snapshotBandViewModels.TryGetValue(bandSettings.CommandId, out var bandVM))
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{
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CenterItems.Add(bandVM);
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}
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}
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foreach (var bandSettings in dockSettings.EndBands)
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{
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if (_snapshotBandViewModels.TryGetValue(bandSettings.CommandId, out var bandVM))
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{
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EndItems.Add(bandVM);
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}
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}
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}
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private void RebuildUICollections()
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{
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var dockSettings = _settingsModel.DockSettings;
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// Create a lookup of all current band ViewModels
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var allBands = StartItems.Concat(CenterItems).Concat(EndItems).ToDictionary(b => b.Id);
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StartItems.Clear();
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CenterItems.Clear();
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EndItems.Clear();
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foreach (var bandSettings in dockSettings.StartBands)
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{
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if (allBands.TryGetValue(bandSettings.CommandId, out var bandVM))
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{
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StartItems.Add(bandVM);
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}
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}
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foreach (var bandSettings in dockSettings.CenterBands)
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{
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if (allBands.TryGetValue(bandSettings.CommandId, out var bandVM))
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{
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CenterItems.Add(bandVM);
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}
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}
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foreach (var bandSettings in dockSettings.EndBands)
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{
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if (allBands.TryGetValue(bandSettings.CommandId, out var bandVM))
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{
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EndItems.Add(bandVM);
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}
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}
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}
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/// <summary>
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/// Gets the list of dock bands that are not currently pinned to any section.
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/// </summary>
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public IEnumerable<TopLevelViewModel> GetAvailableBandsToAdd()
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{
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// Get IDs of all bands currently in the dock
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var pinnedBandIds = new HashSet<string>();
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foreach (var band in StartItems)
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{
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pinnedBandIds.Add(band.Id);
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}
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foreach (var band in CenterItems)
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{
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pinnedBandIds.Add(band.Id);
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}
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foreach (var band in EndItems)
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{
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pinnedBandIds.Add(band.Id);
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}
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// Return all dock bands that are not already pinned
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return AllItems.Where(tlc => !pinnedBandIds.Contains(tlc.Id));
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}
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/// <summary>
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/// Adds a band to the specified dock section.
|
||||
/// Does not save to disk - call SaveBandOrder() when done editing.
|
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/// </summary>
|
||||
public void AddBandToSection(TopLevelViewModel topLevel, DockPinSide targetSide)
|
||||
{
|
||||
var bandId = topLevel.Id;
|
||||
|
||||
// Check if already in the dock
|
||||
if (FindBandById(bandId) != null)
|
||||
{
|
||||
Logger.LogWarning($"Band {bandId} is already in the dock");
|
||||
return;
|
||||
}
|
||||
|
||||
// Create settings for the new band
|
||||
var bandSettings = new DockBandSettings { ProviderId = topLevel.CommandProviderId, CommandId = bandId, ShowLabels = null };
|
||||
var dockSettings = _settingsModel.DockSettings;
|
||||
|
||||
// Create the band view model
|
||||
var bandVm = CreateBandItem(bandSettings, topLevel.ItemViewModel);
|
||||
|
||||
// Add to the appropriate section
|
||||
switch (targetSide)
|
||||
{
|
||||
case DockPinSide.Start:
|
||||
dockSettings.StartBands.Add(bandSettings);
|
||||
StartItems.Add(bandVm);
|
||||
break;
|
||||
case DockPinSide.Center:
|
||||
dockSettings.CenterBands.Add(bandSettings);
|
||||
CenterItems.Add(bandVm);
|
||||
break;
|
||||
case DockPinSide.End:
|
||||
dockSettings.EndBands.Add(bandSettings);
|
||||
EndItems.Add(bandVm);
|
||||
break;
|
||||
}
|
||||
|
||||
// Snapshot the new band so it can be removed on discard
|
||||
bandVm.SnapshotShowLabels();
|
||||
|
||||
Task.Run(() =>
|
||||
{
|
||||
bandVm.SafeInitializePropertiesSynchronous();
|
||||
});
|
||||
|
||||
Logger.LogDebug($"Added band {bandId} to {targetSide} (not saved yet)");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Unpins a band from the dock, removing it from whichever section it's in.
|
||||
/// Does not save to disk - call SaveBandOrder() when done editing.
|
||||
/// </summary>
|
||||
public void UnpinBand(DockBandViewModel band)
|
||||
{
|
||||
var bandId = band.Id;
|
||||
var dockSettings = _settingsModel.DockSettings;
|
||||
|
||||
// Remove from settings
|
||||
dockSettings.StartBands.RemoveAll(b => b.CommandId == bandId);
|
||||
dockSettings.CenterBands.RemoveAll(b => b.CommandId == bandId);
|
||||
dockSettings.EndBands.RemoveAll(b => b.CommandId == bandId);
|
||||
|
||||
// Remove from UI collections
|
||||
StartItems.Remove(band);
|
||||
CenterItems.Remove(band);
|
||||
EndItems.Remove(band);
|
||||
|
||||
Logger.LogDebug($"Unpinned band {bandId} (not saved yet)");
|
||||
}
|
||||
|
||||
private void DoOnUiThread(Action action)
|
||||
{
|
||||
Task.Factory.StartNew(
|
||||
action,
|
||||
CancellationToken.None,
|
||||
TaskCreationOptions.None,
|
||||
Scheduler);
|
||||
}
|
||||
|
||||
public CommandItemViewModel GetContextMenuForDock()
|
||||
{
|
||||
var model = new DockContextMenuItem();
|
||||
var vm = new CommandItemViewModel(new(model), new(_pageContext), contextMenuFactory: null);
|
||||
vm.SlowInitializeProperties();
|
||||
return vm;
|
||||
}
|
||||
|
||||
private sealed partial class DockContextMenuItem : CommandItem
|
||||
{
|
||||
public DockContextMenuItem()
|
||||
{
|
||||
var editDockCommand = new AnonymousCommand(
|
||||
action: () =>
|
||||
{
|
||||
WeakReferenceMessenger.Default.Send(new EnterDockEditModeMessage());
|
||||
})
|
||||
{
|
||||
Name = Properties.Resources.dock_edit_dock_name,
|
||||
Icon = Icons.EditIcon,
|
||||
};
|
||||
|
||||
var openSettingsCommand = new AnonymousCommand(
|
||||
action: () =>
|
||||
{
|
||||
WeakReferenceMessenger.Default.Send(new OpenSettingsMessage("Dock"));
|
||||
})
|
||||
{
|
||||
Name = Properties.Resources.dock_settings_name,
|
||||
Icon = Icons.SettingsIcon,
|
||||
};
|
||||
|
||||
MoreCommands = new CommandContextItem[]
|
||||
{
|
||||
new CommandContextItem(editDockCommand),
|
||||
new CommandContextItem(openSettingsCommand),
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Provides an empty page context, for the dock's own context menu. We're
|
||||
/// building the context menu for the dock using literally our own cmdpal
|
||||
/// types, but that means we need a page context for the VM we will
|
||||
/// generate.
|
||||
/// </summary>
|
||||
private sealed partial class DockPageContext(DockViewModel dockViewModel) : IPageContext
|
||||
{
|
||||
public TaskScheduler Scheduler => dockViewModel.Scheduler;
|
||||
|
||||
public ICommandProviderContext ProviderContext => CommandProviderContext.Empty;
|
||||
|
||||
public void ShowException(Exception ex, string? extensionHint)
|
||||
{
|
||||
var extensionText = extensionHint ?? "<unknown>";
|
||||
Logger.LogError($"Error in dock context {extensionText}", ex);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user