--- /dev/null
+// OpenTween - Client of Twitter
+// Copyright (c) 2007-2011 kiri_feather (@kiri_feather) <kiri.feather@gmail.com>
+// (c) 2008-2011 Moz (@syo68k)
+// (c) 2008-2011 takeshik (@takeshik) <http://www.takeshik.org/>
+// (c) 2010-2011 anis774 (@anis774) <http://d.hatena.ne.jp/anis774/>
+// (c) 2010-2011 fantasticswallow (@f_swallow) <http://twitter.com/f_swallow>
+// (c) 2011 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
+// All rights reserved.
+//
+// This file is part of OpenTween.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General public License as published by the Free
+// Software Foundation; either version 3 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General public License
+// for more details.
+//
+// You should have received a copy of the GNU General public License along
+// with this program. If not, see <http://www.gnu.org/licenses/>, or write to
+// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+// Boston, MA 02110-1301, USA.
+
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Windows.Forms;
+using OpenTween.Models;
+using OpenTween.OpenTweenCustomControl;
+
+namespace OpenTween
+{
+ public class TimelineListViewState
+ {
+ private readonly DetailsListView listView;
+ private readonly TabModel tab;
+
+ private ListViewScroll savedScrollState;
+ private ListViewSelection savedSelectionState;
+
+ internal readonly record struct ListViewScroll(
+ ScrollLockMode ScrollLockMode,
+ long? TopItemStatusId
+ );
+
+ internal enum ScrollLockMode
+ {
+ /// <summary>固定しない</summary>
+ None,
+
+ /// <summary>最上部に固定する</summary>
+ FixedToTop,
+
+ /// <summary>最下部に固定する</summary>
+ FixedToBottom,
+
+ /// <summary><see cref="ListViewScroll.TopItemStatusId"/> の位置に固定する</summary>
+ FixedToItem,
+ }
+
+ internal readonly record struct ListViewSelection(
+ long[] SelectedStatusIds,
+ long? SelectionMarkStatusId,
+ long? FocusedStatusId
+ );
+
+ public TimelineListViewState(DetailsListView listView, TabModel tab)
+ {
+ this.listView = listView;
+ this.tab = tab;
+ }
+
+ public void Save(bool lockScroll)
+ {
+ this.savedScrollState = this.SaveListViewScroll(lockScroll);
+ this.savedSelectionState = this.SaveListViewSelection();
+ }
+
+ public void Restore()
+ {
+ this.RestoreScroll();
+ this.RestoreSelection();
+ }
+
+ public void RestoreScroll()
+ => this.RestoreListViewScroll(this.savedScrollState);
+
+ public void RestoreSelection()
+ => this.RestoreListViewSelection(this.savedSelectionState);
+
+ /// <summary>
+ /// <see cref="ListView"/> のスクロール位置に関する情報を <see cref="ListViewScroll"/> として返します
+ /// </summary>
+ private ListViewScroll SaveListViewScroll(bool lockScroll)
+ {
+ var lockMode = this.GetScrollLockMode(lockScroll);
+ long? topItemStatusId = null;
+
+ if (lockMode == ScrollLockMode.FixedToItem)
+ {
+ var topItemIndex = this.listView.TopItem?.Index ?? -1;
+ if (topItemIndex != -1 && topItemIndex < this.tab.AllCount)
+ topItemStatusId = this.tab.GetStatusIdAt(topItemIndex);
+ }
+
+ return new ListViewScroll
+ {
+ ScrollLockMode = lockMode,
+ TopItemStatusId = topItemStatusId,
+ };
+ }
+
+ private ScrollLockMode GetScrollLockMode(bool lockScroll)
+ {
+ if (this.tab.SortMode == ComparerMode.Id)
+ {
+ if (this.tab.SortOrder == SortOrder.Ascending)
+ {
+ // Id昇順
+ if (lockScroll)
+ return ScrollLockMode.None;
+
+ // 最下行が表示されていたら、最下行へ強制スクロール。最下行が表示されていなかったら制御しない
+
+ // 一番下に表示されているアイテム
+ var bottomItem = this.listView.GetItemAt(0, this.listView.ClientSize.Height - 1);
+ if (bottomItem == null || bottomItem.Index == this.listView.VirtualListSize - 1)
+ return ScrollLockMode.FixedToBottom;
+ else
+ return ScrollLockMode.None;
+ }
+ else
+ {
+ // Id降順
+ if (lockScroll)
+ return ScrollLockMode.FixedToItem;
+
+ // 最上行が表示されていたら、制御しない。最上行が表示されていなかったら、現在表示位置へ強制スクロール
+ var topItem = this.listView.TopItem;
+ if (topItem == null || topItem.Index == 0)
+ return ScrollLockMode.FixedToTop;
+ else
+ return ScrollLockMode.FixedToItem;
+ }
+ }
+ else
+ {
+ return ScrollLockMode.FixedToItem;
+ }
+ }
+
+ /// <summary>
+ /// <see cref="ListView"/> の選択状態を <see cref="ListViewSelection"/> として返します
+ /// </summary>
+ private ListViewSelection SaveListViewSelection()
+ {
+ if (this.listView.VirtualListSize == 0)
+ {
+ return new ListViewSelection
+ {
+ SelectedStatusIds = Array.Empty<long>(),
+ SelectionMarkStatusId = null,
+ FocusedStatusId = null,
+ };
+ }
+
+ return new ListViewSelection
+ {
+ SelectedStatusIds = this.tab.SelectedStatusIds,
+ FocusedStatusId = this.GetFocusedStatusId(),
+ SelectionMarkStatusId = this.GetSelectionMarkStatusId(),
+ };
+ }
+
+ private long? GetFocusedStatusId()
+ {
+ var index = this.listView.FocusedItem?.Index ?? -1;
+
+ return index != -1 && index < this.tab.AllCount ? this.tab.GetStatusIdAt(index) : (long?)null;
+ }
+
+ private long? GetSelectionMarkStatusId()
+ {
+ var index = this.listView.SelectionMark;
+
+ return index != -1 && index < this.tab.AllCount ? this.tab.GetStatusIdAt(index) : (long?)null;
+ }
+
+ /// <summary>
+ /// <see cref="SaveListViewScroll"/> によって保存されたスクロール位置を復元します
+ /// </summary>
+ private void RestoreListViewScroll(ListViewScroll listScroll)
+ {
+ if (this.listView.VirtualListSize == 0)
+ return;
+
+ switch (listScroll.ScrollLockMode)
+ {
+ case ScrollLockMode.FixedToTop:
+ this.listView.EnsureVisible(0);
+ break;
+ case ScrollLockMode.FixedToBottom:
+ this.listView.EnsureVisible(this.listView.VirtualListSize - 1);
+ break;
+ case ScrollLockMode.FixedToItem:
+ var topIndex = listScroll.TopItemStatusId != null ? this.tab.IndexOf(listScroll.TopItemStatusId.Value) : -1;
+ if (topIndex != -1)
+ {
+ var topItem = this.listView.Items[topIndex];
+ try
+ {
+ this.listView.TopItem = topItem;
+ }
+ catch (NullReferenceException)
+ {
+ this.listView.EnsureVisible(this.listView.VirtualListSize - 1);
+ this.listView.EnsureVisible(topIndex);
+ }
+ }
+ break;
+ case ScrollLockMode.None:
+ default:
+ break;
+ }
+ }
+
+ /// <summary>
+ /// <see cref="SaveListViewSelection"/> によって保存された選択状態を復元します
+ /// </summary>
+ private void RestoreListViewSelection(ListViewSelection listSelection)
+ {
+ var invalidateBounds = (Rectangle?)null;
+
+ var previousFocusedItem = this.listView.FocusedItem;
+ if (previousFocusedItem != null)
+ invalidateBounds = previousFocusedItem.Bounds;
+
+ // status_id から ListView 上のインデックスに変換
+ if (listSelection.SelectedStatusIds != null)
+ {
+ var selectedIndices = this.tab.IndexOf(listSelection.SelectedStatusIds).Where(x => x != -1).ToArray();
+ this.listView.SelectItems(selectedIndices);
+ }
+
+ if (listSelection.FocusedStatusId != null)
+ {
+ var focusedIndex = this.tab.IndexOf(listSelection.FocusedStatusId.Value);
+ if (focusedIndex != -1)
+ this.listView.Items[focusedIndex].Focused = true;
+ }
+
+ if (listSelection.SelectionMarkStatusId != null)
+ {
+ var selectionMarkIndex = this.tab.IndexOf(listSelection.SelectionMarkStatusId.Value);
+ if (selectionMarkIndex != -1)
+ this.listView.SelectionMark = selectionMarkIndex;
+ }
+
+ if (invalidateBounds != null)
+ this.listView.Invalidate(invalidateBounds.Value);
+ }
+ }
+}
private TimelineListViewCache? listCache;
private TimelineListViewDrawer? listDrawer;
+ private readonly Dictionary<string, TimelineListViewState> listViewState = new();
private bool isColumnChanged = false;
private void RefreshTimeline()
{
- var curTabModel = this.CurrentTab;
var curListView = this.CurrentListView;
// 現在表示中のタブのスクロール位置を退避
- var curListScroll = this.SaveListViewScroll(curListView, curTabModel);
-
- // 各タブのリスト上の選択位置などを退避
- var listSelections = this.SaveListViewSelection();
+ var currentListViewState = this.listViewState[this.CurrentTabName];
+ currentListViewState.Save(this.ListLockMenuItem.Checked);
// 更新確定
int addCount;
this.listCache.UpdateListSize();
// 選択位置などを復元
- this.RestoreListViewSelection(curListView, curTabModel, listSelections[curTabModel.TabName]);
+ currentListViewState.RestoreSelection();
}
}
}
// スクロール位置を復元
- this.RestoreListViewScroll(curListView, curTabModel, curListScroll);
+ currentListViewState.RestoreScroll();
// 新着通知
this.NotifyNewPosts(notifyPosts, soundFile, addCount, newMentionOrDm);
this.HashSupl.AddRangeItem(this.tw.GetHashList());
}
- internal readonly record struct ListViewScroll(
- ScrollLockMode ScrollLockMode,
- long? TopItemStatusId
- );
-
- internal enum ScrollLockMode
- {
- /// <summary>固定しない</summary>
- None,
-
- /// <summary>最上部に固定する</summary>
- FixedToTop,
-
- /// <summary>最下部に固定する</summary>
- FixedToBottom,
-
- /// <summary><see cref="ListViewScroll.TopItemStatusId"/> の位置に固定する</summary>
- FixedToItem,
- }
-
- /// <summary>
- /// <see cref="ListView"/> のスクロール位置に関する情報を <see cref="ListViewScroll"/> として返します
- /// </summary>
- private ListViewScroll SaveListViewScroll(DetailsListView listView, TabModel tab)
- {
- var lockMode = this.GetScrollLockMode(listView);
- long? topItemStatusId = null;
-
- if (lockMode == ScrollLockMode.FixedToItem)
- {
- var topItemIndex = listView.TopItem?.Index ?? -1;
- if (topItemIndex != -1 && topItemIndex < tab.AllCount)
- topItemStatusId = tab.GetStatusIdAt(topItemIndex);
- }
-
- return new ListViewScroll
- {
- ScrollLockMode = lockMode,
- TopItemStatusId = topItemStatusId,
- };
- }
-
- private ScrollLockMode GetScrollLockMode(DetailsListView listView)
- {
- if (this.statuses.SortMode == ComparerMode.Id)
- {
- if (this.statuses.SortOrder == SortOrder.Ascending)
- {
- // Id昇順
- if (this.ListLockMenuItem.Checked)
- return ScrollLockMode.None;
-
- // 最下行が表示されていたら、最下行へ強制スクロール。最下行が表示されていなかったら制御しない
-
- // 一番下に表示されているアイテム
- var bottomItem = listView.GetItemAt(0, listView.ClientSize.Height - 1);
- if (bottomItem == null || bottomItem.Index == listView.VirtualListSize - 1)
- return ScrollLockMode.FixedToBottom;
- else
- return ScrollLockMode.None;
- }
- else
- {
- // Id降順
- if (this.ListLockMenuItem.Checked)
- return ScrollLockMode.FixedToItem;
-
- // 最上行が表示されていたら、制御しない。最上行が表示されていなかったら、現在表示位置へ強制スクロール
- var topItem = listView.TopItem;
- if (topItem == null || topItem.Index == 0)
- return ScrollLockMode.FixedToTop;
- else
- return ScrollLockMode.FixedToItem;
- }
- }
- else
- {
- return ScrollLockMode.FixedToItem;
- }
- }
-
- internal readonly record struct ListViewSelection(
- long[]? SelectedStatusIds,
- long? SelectionMarkStatusId,
- long? FocusedStatusId
- );
-
- /// <summary>
- /// <see cref="ListView"/> の選択状態を <see cref="ListViewSelection"/> として返します
- /// </summary>
- private IReadOnlyDictionary<string, ListViewSelection> SaveListViewSelection()
- {
- var listsDict = new Dictionary<string, ListViewSelection>();
-
- foreach (var (tab, index) in this.statuses.Tabs.WithIndex())
- {
- var listView = (DetailsListView)this.ListTab.TabPages[index].Tag;
- listsDict[tab.TabName] = this.SaveListViewSelection(listView, tab);
- }
-
- return listsDict;
- }
-
- /// <summary>
- /// <see cref="ListView"/> の選択状態を <see cref="ListViewSelection"/> として返します
- /// </summary>
- private ListViewSelection SaveListViewSelection(DetailsListView listView, TabModel tab)
- {
- if (listView.VirtualListSize == 0)
- {
- return new ListViewSelection
- {
- SelectedStatusIds = Array.Empty<long>(),
- SelectionMarkStatusId = null,
- FocusedStatusId = null,
- };
- }
-
- return new ListViewSelection
- {
- SelectedStatusIds = tab.SelectedStatusIds,
- FocusedStatusId = this.GetFocusedStatusId(listView, tab),
- SelectionMarkStatusId = this.GetSelectionMarkStatusId(listView, tab),
- };
- }
-
- private long? GetFocusedStatusId(DetailsListView listView, TabModel tab)
- {
- var index = listView.FocusedItem?.Index ?? -1;
-
- return index != -1 && index < tab.AllCount ? tab.GetStatusIdAt(index) : (long?)null;
- }
-
- private long? GetSelectionMarkStatusId(DetailsListView listView, TabModel tab)
- {
- var index = listView.SelectionMark;
-
- return index != -1 && index < tab.AllCount ? tab.GetStatusIdAt(index) : (long?)null;
- }
-
- /// <summary>
- /// <see cref="SaveListViewScroll"/> によって保存されたスクロール位置を復元します
- /// </summary>
- private void RestoreListViewScroll(DetailsListView listView, TabModel tab, ListViewScroll listScroll)
- {
- if (listView.VirtualListSize == 0)
- return;
-
- switch (listScroll.ScrollLockMode)
- {
- case ScrollLockMode.FixedToTop:
- listView.EnsureVisible(0);
- break;
- case ScrollLockMode.FixedToBottom:
- listView.EnsureVisible(listView.VirtualListSize - 1);
- break;
- case ScrollLockMode.FixedToItem:
- var topIndex = listScroll.TopItemStatusId != null ? tab.IndexOf(listScroll.TopItemStatusId.Value) : -1;
- if (topIndex != -1)
- {
- var topItem = listView.Items[topIndex];
- try
- {
- listView.TopItem = topItem;
- }
- catch (NullReferenceException)
- {
- listView.EnsureVisible(listView.VirtualListSize - 1);
- listView.EnsureVisible(topIndex);
- }
- }
- break;
- case ScrollLockMode.None:
- default:
- break;
- }
- }
-
- /// <summary>
- /// <see cref="SaveListViewSelection"/> によって保存された選択状態を復元します
- /// </summary>
- private void RestoreListViewSelection(DetailsListView listView, TabModel tab, ListViewSelection listSelection)
- {
- // status_id から ListView 上のインデックスに変換
- int[]? selectedIndices = null;
- if (listSelection.SelectedStatusIds != null)
- selectedIndices = tab.IndexOf(listSelection.SelectedStatusIds).Where(x => x != -1).ToArray();
-
- var focusedIndex = -1;
- if (listSelection.FocusedStatusId != null)
- focusedIndex = tab.IndexOf(listSelection.FocusedStatusId.Value);
-
- var selectionMarkIndex = -1;
- if (listSelection.SelectionMarkStatusId != null)
- selectionMarkIndex = tab.IndexOf(listSelection.SelectionMarkStatusId.Value);
-
- this.SelectListItem(listView, selectedIndices, focusedIndex, selectionMarkIndex);
- }
-
private bool BalloonRequired()
{
if (this.initial)
var newAlignment = this.settings.Common.ViewTabBottom ? TabAlignment.Bottom : TabAlignment.Top;
if (this.ListTab.Alignment == newAlignment) return;
- // 各タブのリスト上の選択位置などを退避
- var listSelections = this.SaveListViewSelection();
+ // リスト上の選択位置などを退避
+ var currentListViewState = this.listViewState[this.CurrentTabName];
+ currentListViewState.Save(this.ListLockMenuItem.Checked);
this.ListTab.Alignment = newAlignment;
- foreach (var (tab, index) in this.statuses.Tabs.WithIndex())
- {
- var lst = (DetailsListView)this.ListTab.TabPages[index].Tag;
- using (ControlTransaction.Update(lst))
- {
- // 選択位置などを復元
- this.RestoreListViewSelection(lst, tab, listSelections[tab.TabName]);
- }
- }
+ currentListViewState.Restore();
}
private void ApplyListViewIconSize(MyCommon.IconSizes iconSz)
listCustom.HScrolled += this.MyList_HScrolled;
}
+ var state = new TimelineListViewState(listCustom, tab);
+ this.listViewState[tab.TabName] = state;
+
return true;
}
this.SetListProperty(); // 他のタブに列幅等を反映
+ this.listViewState.Remove(tabName);
+
// オブジェクトインスタンスの削除
var listCustom = (DetailsListView)tabPage.Tag;
tabPage.Tag = null;
{
this.SetListProperty();
+ var previousTabName = this.CurrentTabName;
+ if (this.listViewState.TryGetValue(previousTabName, out var previousListViewState))
+ previousListViewState.Save(this.ListLockMenuItem.Checked);
+
this.listCache?.PurgeCache();
this.statuses.SelectTab(tabPage.Text);
tab.ClearAnchor();
var listView = this.CurrentListView;
- listView.SelectItems(tab.SelectedIndices);
+
+ var currentListViewState = this.listViewState[tab.TabName];
+ currentListViewState.Restore();
if (this.Use2ColumnsMode)
{
if (flg) lView.Invalidate(bnd);
}
- private void SelectListItem(DetailsListView lView, int[]? index, int focusedIndex, int selectionMarkIndex)
- {
- // 複数
- var bnd = new Rectangle();
- var flg = false;
- var item = lView.FocusedItem;
- if (item != null)
- {
- bnd = item.Bounds;
- flg = true;
- }
-
- if (index != null)
- {
- lView.SelectItems(index);
- }
- if (selectionMarkIndex > -1 && lView.VirtualListSize > selectionMarkIndex)
- {
- lView.SelectionMark = selectionMarkIndex;
- }
- if (focusedIndex > -1 && lView.VirtualListSize > focusedIndex)
- {
- lView.Items[focusedIndex].Focused = true;
- }
- else if (index != null && index.Length != 0)
- {
- lView.Items[index.Last()].Focused = true;
- }
-
- if (flg) lView.Invalidate(bnd);
- }
-
private async void TweenMain_Shown(object sender, EventArgs e)
{
this.NotifyIcon1.Visible = true;
OSDN Git Service
