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* Fixes #276 - Rebuilt room timeline: - Removed the need for the ListCollectionViewAdapter - Rewrote the TimelineItemList without using introspection - Added ReversedScrollView for laying out items at the bottom/trailing - Rewrote TimelineProvider diffing through CollectionDifference (similar to the RoomSummaryProvider) - Added back `scrollDismissesKeyboard` behavior - Various other tweaks and fixes - Fixed various warnings: - removed async AttributedStringBuilder as AttributedString is non-sendable, made the RoomTimelineItemFactory synchronous - removed unused virtual timeline items - removed unused isOutgoing property from the FormattedBodyText * Make TimelineItemContextMenuActions indentifiable and specify contextMenu identifiers * Bump the matrix-rust-components-swift to v1.0.16-alpha * Add changes file and changelog contribution guide * Fix attributed string builder unit tests
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// | ||
// Copyright 2022 New Vector Ltd | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
// | ||
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import SwiftUI | ||
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/// A SwiftUI scroll view that lays out its content starting at the bottom or trailing | ||
/// https://www.thirdrocktechkno.com/blog/implementing-reversed-scrolling-behaviour-in-swiftui/ | ||
struct ReversedScrollView<Content: View>: View { | ||
private let axis: Axis.Set | ||
private let leadingSpace: CGFloat | ||
private let content: Content | ||
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init(_ axis: Axis.Set = .horizontal, leadingSpace: CGFloat = 0, @ViewBuilder builder: () -> Content) { | ||
self.axis = axis | ||
self.leadingSpace = leadingSpace | ||
content = builder() | ||
} | ||
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var body: some View { | ||
GeometryReader { proxy in | ||
ScrollView(axis, showsIndicators: false) { | ||
Stack(axis) { | ||
Spacer(minLength: leadingSpace) | ||
content | ||
} | ||
.frame( | ||
minWidth: minWidth(in: proxy, for: axis), | ||
minHeight: minHeight(in: proxy, for: axis) | ||
) | ||
} | ||
} | ||
} | ||
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private func minWidth(in proxy: GeometryProxy, for axis: Axis.Set) -> CGFloat? { | ||
axis.contains(.horizontal) ? proxy.size.width : nil | ||
} | ||
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private func minHeight(in proxy: GeometryProxy, for axis: Axis.Set) -> CGFloat? { | ||
axis.contains(.vertical) ? proxy.size.height : nil | ||
} | ||
} | ||
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private struct Stack<Content: View>: View { | ||
var axis: Axis.Set | ||
var content: Content | ||
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init(_ axis: Axis.Set = .vertical, @ViewBuilder builder: () -> Content) { | ||
self.axis = axis | ||
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content = builder() | ||
} | ||
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var body: some View { | ||
switch axis { | ||
case .horizontal: | ||
HStack { | ||
content | ||
} | ||
case .vertical: | ||
VStack { | ||
content | ||
} | ||
default: | ||
VStack { | ||
content | ||
} | ||
} | ||
} | ||
} |
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