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osu-lazer/osu.Game/Overlays/Chat/DrawableChannel.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
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using osu.Framework.Allocation;
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using osuTK.Graphics;
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using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics.Containers;
using osu.Game.Graphics.Cursor;
using osu.Game.Online.Chat;
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using osu.Framework.Graphics.Shapes;
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using osu.Game.Graphics;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics.Sprites;
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using osu.Game.Graphics.Sprites;
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namespace osu.Game.Overlays.Chat
{
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public class DrawableChannel : Container
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{
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public readonly Channel Channel;
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protected FillFlowContainer ChatLineFlow;
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private OsuScrollContainer scroll;
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[Resolved]
private OsuColour colours { get; set; }
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public DrawableChannel(Channel channel)
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{
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Channel = channel;
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RelativeSizeAxes = Axes.Both;
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}
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[BackgroundDependencyLoader]
private void load()
{
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Child = new OsuContextMenuContainer
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{
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RelativeSizeAxes = Axes.Both,
Masking = true,
Child = scroll = new OsuScrollContainer
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{
RelativeSizeAxes = Axes.Both,
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// Some chat lines have effects that slightly protrude to the bottom,
// which we do not want to mask away, hence the padding.
Padding = new MarginPadding { Bottom = 5 },
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Child = ChatLineFlow = new FillFlowContainer
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{
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Padding = new MarginPadding { Left = 20, Right = 20 },
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
}
},
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};
newMessagesArrived(Channel.Messages);
Channel.NewMessagesArrived += newMessagesArrived;
Channel.MessageRemoved += messageRemoved;
Channel.PendingMessageResolved += pendingMessageResolved;
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}
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protected override void LoadComplete()
{
base.LoadComplete();
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scrollToEnd();
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
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Channel.NewMessagesArrived -= newMessagesArrived;
Channel.MessageRemoved -= messageRemoved;
Channel.PendingMessageResolved -= pendingMessageResolved;
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}
protected virtual ChatLine CreateChatLine(Message m) => new ChatLine(m);
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protected virtual DaySeparator CreateDaySeparator(DateTimeOffset time) => new DaySeparator(time)
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{
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Margin = new MarginPadding { Vertical = 10 },
Colour = colours.ChatBlue.Lighten(0.7f),
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};
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private void newMessagesArrived(IEnumerable<Message> newMessages)
{
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bool shouldScrollToEnd = scroll.IsScrolledToEnd(10) || !chatLines.Any() || newMessages.Any(m => m is LocalMessage);
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// Add up to last Channel.MAX_HISTORY messages
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var displayMessages = newMessages.Skip(Math.Max(0, newMessages.Count() - Channel.MAX_HISTORY));
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Message lastMessage = chatLines.LastOrDefault()?.Message;
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foreach (var message in displayMessages)
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{
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if (lastMessage == null || lastMessage.Timestamp.ToLocalTime().Date != message.Timestamp.ToLocalTime().Date)
ChatLineFlow.Add(CreateDaySeparator(message.Timestamp));
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ChatLineFlow.Add(CreateChatLine(message));
lastMessage = message;
}
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var staleMessages = chatLines.Where(c => c.LifetimeEnd == double.MaxValue).ToArray();
int count = staleMessages.Length - Channel.MAX_HISTORY;
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if (count > 0)
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{
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void expireAndAdjustScroll(Drawable d)
{
scroll.OffsetScrollPosition(-d.DrawHeight);
d.Expire();
}
for (int i = 0; i < count; i++)
expireAndAdjustScroll(staleMessages[i]);
// remove all adjacent day separators after stale message removal
for (int i = 0; i < ChatLineFlow.Count - 1; i++)
{
if (!(ChatLineFlow[i] is DaySeparator)) break;
if (!(ChatLineFlow[i + 1] is DaySeparator)) break;
expireAndAdjustScroll(ChatLineFlow[i]);
}
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}
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if (shouldScrollToEnd)
scrollToEnd();
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}
private void pendingMessageResolved(Message existing, Message updated)
{
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var found = chatLines.LastOrDefault(c => c.Message == existing);
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if (found != null)
{
Trace.Assert(updated.Id.HasValue, "An updated message was returned with no ID.");
ChatLineFlow.Remove(found);
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found.Message = updated;
ChatLineFlow.Add(found);
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}
}
private void messageRemoved(Message removed)
{
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chatLines.FirstOrDefault(c => c.Message == removed)?.FadeColour(Color4.Red, 400).FadeOut(600).Expire();
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}
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private IEnumerable<ChatLine> chatLines => ChatLineFlow.Children.OfType<ChatLine>();
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private void scrollToEnd() => ScheduleAfterChildren(() => scroll.ScrollToEnd());
public class DaySeparator : Container
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{
public float TextSize
{
get => text.Font.Size;
set => text.Font = text.Font.With(size: value);
}
private float lineHeight = 2;
public float LineHeight
{
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get => lineHeight;
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set => lineHeight = leftBox.Height = rightBox.Height = value;
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}
private readonly SpriteText text;
private readonly Box leftBox;
private readonly Box rightBox;
public DaySeparator(DateTimeOffset time)
{
RelativeSizeAxes = Axes.X;
AutoSizeAxes = Axes.Y;
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Child = new GridContainer
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{
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RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
ColumnDimensions = new[]
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{
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new Dimension(),
new Dimension(GridSizeMode.AutoSize),
new Dimension(),
},
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RowDimensions = new[] { new Dimension(GridSizeMode.AutoSize), },
Content = new[]
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{
new Drawable[]
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{
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leftBox = new Box
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.X,
Height = lineHeight,
},
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text = new OsuSpriteText
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{
Margin = new MarginPadding { Horizontal = 10 },
Text = time.ToLocalTime().ToString("dd MMM yyyy"),
},
rightBox = new Box
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.X,
Height = lineHeight,
},
}
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}
};
}
}
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}
}