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Merge pull request #58 from zwang/dev
Time separators in ChattoApp. Also removes dynamicType when fetching resources from the framework.
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148 changes: 148 additions & 0 deletions
148
ChattoApp/ChattoApp/Source/TimestampSeparatorView.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| /* | ||
| The MIT License (MIT) | ||
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| Copyright (c) 2016-present Zhao Wang. | ||
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| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
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| The above copyright notice and this permission notice shall be included in | ||
| all copies or substantial portions of the Software. | ||
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| THE SOFTWARE. | ||
| */ | ||
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| import Foundation | ||
| import UIKit | ||
| import Chatto | ||
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| extension NSDate { | ||
| // Have a time stamp formatter to avoid keep creating new ones. This improves performance | ||
| private static let weekdayAndDateStampDateFormatter: NSDateFormatter = { | ||
| let dateFormatter = NSDateFormatter() | ||
| dateFormatter.timeZone = NSTimeZone.localTimeZone() | ||
| dateFormatter.dateFormat = "EEEE, MMM dd yyyy" // "Monday, Mar 7 2016" | ||
| return dateFormatter | ||
| }() | ||
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| func toWeekDayAndDateString() -> String { | ||
| return NSDate.weekdayAndDateStampDateFormatter.stringFromDate(self) | ||
| } | ||
| } | ||
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| class WeekDayDatestamp: ChatItemProtocol { | ||
| let uid: String | ||
| let type: String = WeekDayDatestamp.chatItemType | ||
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| static var chatItemType: ChatItemType { | ||
| return "WeekDayDatestamp" | ||
| } | ||
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| init(date: NSDate) { | ||
| let datestampString = date.toWeekDayAndDateString() | ||
| self.uid = datestampString.uppercaseString | ||
| } | ||
| } | ||
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| class WeekDayDatestampCollectionViewCell: UICollectionViewCell { | ||
| private let label: UILabel = UILabel() | ||
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| override init(frame: CGRect) { | ||
| super.init(frame: frame) | ||
| commonInit() | ||
| } | ||
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| required init?(coder aDecoder: NSCoder) { | ||
| super.init(coder: aDecoder) | ||
| commonInit() | ||
| } | ||
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| private func commonInit() { | ||
| label.font = UIFont.systemFontOfSize(12) | ||
| label.textAlignment = .Center | ||
| label.textColor = UIColor.grayColor() | ||
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| self.contentView.addSubview(label) | ||
| } | ||
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| var text: String = "" { | ||
| didSet { | ||
| if oldValue != text { | ||
| setTextOnLabel(text) | ||
| } | ||
| } | ||
| } | ||
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| private func setTextOnLabel(text: String) { | ||
| label.text = text | ||
| label.sizeToFit() | ||
| setNeedsLayout() | ||
| } | ||
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| override func layoutSubviews() { | ||
| super.layoutSubviews() | ||
| label.center = self.contentView.center | ||
| } | ||
| } | ||
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| public class WeekDayDatestampPresenterBuilder: ChatItemPresenterBuilderProtocol { | ||
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| public func canHandleChatItem(chatItem: ChatItemProtocol) -> Bool { | ||
| return chatItem is WeekDayDatestamp | ||
| } | ||
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| public func createPresenterWithChatItem(chatItem: ChatItemProtocol) -> ChatItemPresenterProtocol { | ||
| assert(self.canHandleChatItem(chatItem)) | ||
| return WeekDayDatestampPresenter(weekDayDatestamp: chatItem as! WeekDayDatestamp) | ||
| } | ||
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| public var presenterType: ChatItemPresenterProtocol.Type { | ||
| return WeekDayDatestampPresenter.self | ||
| } | ||
| } | ||
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| class WeekDayDatestampPresenter: ChatItemPresenterProtocol { | ||
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| let weekDayDatestamp: WeekDayDatestamp | ||
| init (weekDayDatestamp: WeekDayDatestamp) { | ||
| self.weekDayDatestamp = weekDayDatestamp | ||
| } | ||
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| private static let cellReuseIdentifier = WeekDayDatestampCollectionViewCell.self.description() | ||
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| static func registerCells(collectionView: UICollectionView) { | ||
| collectionView.registerClass(WeekDayDatestampCollectionViewCell.self, forCellWithReuseIdentifier: cellReuseIdentifier) | ||
| } | ||
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| func dequeueCell(collectionView collectionView: UICollectionView, indexPath: NSIndexPath) -> UICollectionViewCell { | ||
| let cell = collectionView.dequeueReusableCellWithReuseIdentifier(WeekDayDatestampPresenter.cellReuseIdentifier, forIndexPath: indexPath) | ||
| return cell | ||
| } | ||
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| func configureCell(cell: UICollectionViewCell, decorationAttributes: ChatItemDecorationAttributesProtocol?) { | ||
| guard let datestamp = cell as? WeekDayDatestampCollectionViewCell else { | ||
| assert(false, "expecting status cell") | ||
| return | ||
| } | ||
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| datestamp.text = weekDayDatestamp.uid | ||
| } | ||
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| var canCalculateHeightInBackground: Bool { | ||
| return true | ||
| } | ||
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| func heightForCell(maximumWidth width: CGFloat, decorationAttributes: ChatItemDecorationAttributesProtocol?) -> CGFloat { | ||
| return 24 | ||
| } | ||
| } |