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Merge pull request #13 from ArcBlock/feature/ch405/migrate-data-sourc…
…es-to-depend-on-absdkclient migrate data sources to depend on ABSDKClient
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| // ABSDKDataSource.swift | ||
| // | ||
| // Copyright (c) 2017-present ArcBlock Foundation Ltd <https://www.arcblock.io/> | ||
| // | ||
| // 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: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // 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. | ||
|
|
||
| import Apollo | ||
| import UIKit | ||
|
|
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| public typealias ArrayDataSourceMapper<Query: GraphQLQuery, Data: GraphQLSelectionSet> = (_ data: Query.Data) -> [Data?]? | ||
|
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| public typealias ObjectDataSourceMapper<Query: GraphQLQuery, Data: GraphQLSelectionSet> = (_ data: Query.Data) -> Data? | ||
|
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| public typealias ViewUpdateHandler<Data: GraphQLSelectionSet> = (_ view: UIView, _ data: Data) -> Void | ||
|
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| protocol ABSDKDataSource { | ||
| associatedtype Query: GraphQLQuery | ||
| associatedtype Data: GraphQLSelectionSet | ||
|
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| var client: ABSDKClient { get } | ||
| var query: Query { get } | ||
| var viewUpdateHandler: ViewUpdateHandler<Data> { get } | ||
| var watcher: GraphQLQueryWatcher<Query>? { get } | ||
|
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| init(client: ABSDKClient, query: Query, viewUpdateHandler: @escaping ViewUpdateHandler<Data>) | ||
| } | ||
|
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| final public class ABSDKObjectDataSource<Query: GraphQLQuery, Data: GraphQLSelectionSet>: ABSDKDataSource { | ||
| public weak var view: UIView? | ||
|
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| var object: Data? = nil { | ||
| didSet { | ||
| viewUpdateHandler(view!, object!) | ||
| } | ||
| } | ||
|
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| var dataSourceMapper: ObjectDataSourceMapper<Query, Data>? = nil | ||
| var watcher: GraphQLQueryWatcher<Query>? = nil | ||
|
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| let client: ABSDKClient | ||
| let query: Query | ||
| let viewUpdateHandler: ViewUpdateHandler<Data> | ||
|
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| init(client: ABSDKClient, query: Query, viewUpdateHandler: @escaping ViewUpdateHandler<Data>) { | ||
| self.client = client | ||
| self.query = query | ||
| self.viewUpdateHandler = viewUpdateHandler | ||
| } | ||
|
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| public convenience init(client: ABSDKClient, query: Query, dataSourceMapper: @escaping ObjectDataSourceMapper<Query, Data>, viewUpdateHandler: @escaping ViewUpdateHandler<Data>) { | ||
| self.init(client: client, query: query, viewUpdateHandler: viewUpdateHandler) | ||
| self.dataSourceMapper = dataSourceMapper | ||
|
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| self.watcher = self.client.watch(query: self.query, cachePolicy: .returnCacheDataAndFetch, resultHandler: { (result, err) in | ||
| self.object = self.dataSourceMapper!((result?.data)!) | ||
| }) | ||
| } | ||
| } | ||
|
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| final public class ABSDKTableViewDataSource<Query: GraphQLQuery, Data: GraphQLSelectionSet>: NSObject, UITableViewDataSource, ABSDKDataSource { | ||
| public weak var tableView: UITableView? { | ||
| didSet { | ||
| tableView?.dataSource = self | ||
| } | ||
| } | ||
|
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| public var reuseIdentifier: String! = "Cell" | ||
|
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| var array: [Data?]? = [] { | ||
| didSet { | ||
| tableView?.reloadData() | ||
| } | ||
| } | ||
|
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| var dataSourceMapper: ArrayDataSourceMapper<Query, Data>? = nil | ||
| var watcher: GraphQLQueryWatcher<Query>? = nil | ||
|
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| let client: ABSDKClient | ||
| let query: Query | ||
| let viewUpdateHandler: ViewUpdateHandler<Data> | ||
|
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| init(client: ABSDKClient, query: Query, viewUpdateHandler: @escaping ViewUpdateHandler<Data>) { | ||
| self.client = client | ||
| self.query = query | ||
| self.viewUpdateHandler = viewUpdateHandler | ||
| super.init() | ||
| } | ||
|
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| public convenience init(client: ABSDKClient, query: Query, dataSourceMapper: @escaping (Query.Data) -> [Data?]?, viewUpdateHandler: @escaping (UIView, Data) -> Void) { | ||
| self.init(client: client, query: query, viewUpdateHandler: viewUpdateHandler) | ||
| self.dataSourceMapper = dataSourceMapper | ||
|
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| self.watcher = self.client.watch(query: self.query, cachePolicy: .returnCacheDataAndFetch, resultHandler: { (result, err) in | ||
| self.array = self.dataSourceMapper!((result?.data)!) | ||
| }) | ||
| } | ||
|
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| public func dataForIndexPath(indexPath: IndexPath) -> Data? { | ||
| return array![indexPath.row] | ||
| } | ||
|
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| public func numberOfSections(in tableView: UITableView) -> Int { | ||
| return 1 | ||
| } | ||
|
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| public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { | ||
| return array?.count ?? 0 | ||
| } | ||
|
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| public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { | ||
| let cell = tableView.dequeueReusableCell(withIdentifier: reuseIdentifier, for: indexPath) | ||
| let data = self.dataForIndexPath(indexPath: indexPath) | ||
| viewUpdateHandler(cell, data!) | ||
| return cell | ||
| } | ||
| } | ||
|
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| final public class ABSDKCollectionViewDataSource<Query: GraphQLQuery, Data: GraphQLSelectionSet>: NSObject, UICollectionViewDataSource, ABSDKDataSource { | ||
| public weak var collectionView: UICollectionView? { | ||
| didSet { | ||
| collectionView?.dataSource = self | ||
| } | ||
| } | ||
|
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| public var reuseIdentifier: String! = "Cell" | ||
|
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| var array: [Data?]? = [] { | ||
| didSet { | ||
| collectionView?.reloadData() | ||
| } | ||
| } | ||
|
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| var dataSourceMapper: ArrayDataSourceMapper<Query, Data>? = nil | ||
| var watcher: GraphQLQueryWatcher<Query>? = nil | ||
|
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| let client: ABSDKClient | ||
| let query: Query | ||
| let viewUpdateHandler: ViewUpdateHandler<Data> | ||
|
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| init(client: ABSDKClient, query: Query, viewUpdateHandler: @escaping ViewUpdateHandler<Data>) { | ||
| self.client = client | ||
| self.query = query | ||
| self.viewUpdateHandler = viewUpdateHandler | ||
| super.init() | ||
| } | ||
|
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| public convenience init(client: ABSDKClient, query: Query, dataSourceMapper: @escaping (Query.Data) -> [Data?]?, viewUpdateHandler: @escaping (UIView, Data) -> Void) { | ||
| self.init(client: client, query: query, viewUpdateHandler: viewUpdateHandler) | ||
| self.dataSourceMapper = dataSourceMapper | ||
|
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| self.watcher = self.client.watch(query: self.query, cachePolicy: .returnCacheDataAndFetch, resultHandler: { (result, err) in | ||
| self.array = self.dataSourceMapper!((result?.data)!) | ||
| }) | ||
| } | ||
|
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| public func numberOfSections(in collectionView: UICollectionView) -> Int { | ||
| return 1 | ||
| } | ||
|
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| public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { | ||
| return array?.count ?? 0 | ||
| } | ||
|
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| public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { | ||
| let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath) | ||
| let data = array![indexPath.row]! | ||
| viewUpdateHandler(cell, data) | ||
| return cell | ||
| } | ||
| } |
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