seperate iOS project from main project
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pengfei.zhou
216
Pod/Classes/Shader/DoricListNode.m
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216
Pod/Classes/Shader/DoricListNode.m
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/*
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* Copyright [2019] [Doric.Pub]
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// Created by pengfei.zhou on 2019/11/15.
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//
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#import <JavaScriptCore/JavaScriptCore.h>
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#import "DoricListNode.h"
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#import "DoricExtensions.h"
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#import "DoricListItemNode.h"
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#import "DoricLayouts.h"
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#import "DoricRefreshableNode.h"
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@interface DoricTableViewCell : UITableViewCell
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@property(nonatomic, strong) DoricListItemNode *doricListItemNode;
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@end
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@implementation DoricTableViewCell
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@end
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@interface DoricTableView : UITableView
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@end
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@implementation DoricTableView
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- (CGSize)sizeThatFits:(CGSize)size {
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if (self.subviews.count > 0) {
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CGFloat width = size.width;
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CGFloat height = 0;
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for (UIView *child in self.subviews) {
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CGSize childSize = [child measureSize:size];
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width = MAX(childSize.width, width);
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height += childSize.height;
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}
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return CGSizeMake(width, MAX(height, size.height));
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}
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return size;
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}
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- (void)layoutSelf:(CGSize)targetSize {
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[super layoutSelf:targetSize];
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[self reloadData];
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}
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@end
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@interface DoricListNode () <UITableViewDataSource, UITableViewDelegate>
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@property(nonatomic, strong) NSMutableDictionary <NSNumber *, NSString *> *itemViewIds;
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@property(nonatomic, strong) NSMutableDictionary <NSNumber *, NSNumber *> *itemHeights;
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@property(nonatomic, assign) NSUInteger itemCount;
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@property(nonatomic, assign) NSUInteger batchCount;
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@end
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@implementation DoricListNode
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- (instancetype)initWithContext:(DoricContext *)doricContext {
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if (self = [super initWithContext:doricContext]) {
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_itemViewIds = [NSMutableDictionary new];
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_itemHeights = [NSMutableDictionary new];
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_batchCount = 15;
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}
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return self;
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}
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- (void)initWithSuperNode:(DoricSuperNode *)superNode {
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[super initWithSuperNode:superNode];
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if ([superNode isKindOfClass:[DoricRefreshableNode class]]) {
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self.view.bounces = NO;
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}
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}
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- (UITableView *)build {
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return [[DoricTableView new] also:^(UITableView *it) {
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it.dataSource = self;
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it.delegate = self;
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it.separatorStyle = UITableViewCellSeparatorStyleNone;
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}];
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}
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- (void)blendView:(UITableView *)view forPropName:(NSString *)name propValue:(id)prop {
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if ([@"itemCount" isEqualToString:name]) {
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self.itemCount = [prop unsignedIntegerValue];
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[self.view reloadData];
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} else if ([@"renderItem" isEqualToString:name]) {
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[self.itemViewIds removeAllObjects];
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[self clearSubModel];
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[self.view reloadData];
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} else if ([@"batchCount" isEqualToString:name]) {
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self.batchCount = [prop unsignedIntegerValue];
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} else {
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[super blendView:view forPropName:name propValue:prop];
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}
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}
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- (void)blend:(NSDictionary *)props {
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[super blend:props];
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}
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
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return self.itemCount;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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NSUInteger position = (NSUInteger) indexPath.row;
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NSDictionary *model = [self itemModelAt:position];
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NSDictionary *props = model[@"props"];
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NSString *reuseId = props[@"identifier"];
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DoricTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseId ?: @"doriccell"];
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if (!cell) {
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cell = [[DoricTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseId ?: @"doriccell"];
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DoricListItemNode *listItemNode = [[DoricListItemNode alloc] initWithContext:self.doricContext];
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[listItemNode initWithSuperNode:self];
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cell.doricListItemNode = listItemNode;
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[cell.contentView addSubview:listItemNode.view];
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}
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DoricListItemNode *node = cell.doricListItemNode;
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node.viewId = model[@"id"];
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[node blend:props];
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CGSize size = [node.view measureSize:CGSizeMake(tableView.width, tableView.height)];
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[node.view layoutSelf:size];
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[self callItem:position height:size.height];
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return cell;
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}
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- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
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NSUInteger position = (NSUInteger) indexPath.row;
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NSNumber *heightNumber = self.itemHeights[@(position)];
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if (heightNumber) {
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return [heightNumber floatValue];
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} else {
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return 44.f;
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}
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}
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- (NSDictionary *)itemModelAt:(NSUInteger)position {
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NSString *viewId = self.itemViewIds[@(position)];
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if (viewId && viewId.length > 0) {
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return [self subModelOf:viewId];
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} else {
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DoricAsyncResult *result = [self callJSResponse:@"renderBunchedItems", @(position), @(self.batchCount), nil];
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JSValue *models = [result waitUntilResult];
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NSArray *array = [models toArray];
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[array enumerateObjectsUsingBlock:^(NSDictionary *obj, NSUInteger idx, BOOL *stop) {
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NSString *thisViewId = obj[@"id"];
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[self setSubModel:obj in:thisViewId];
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NSUInteger pos = position + idx;
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self.itemViewIds[@(pos)] = thisViewId;
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}];
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return array[0];
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}
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}
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- (void)blendSubNode:(NSDictionary *)subModel {
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NSString *viewId = subModel[@"id"];
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DoricViewNode *viewNode = [self subNodeWithViewId:viewId];
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if (viewNode) {
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[viewNode blend:subModel[@"props"]];
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} else {
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NSMutableDictionary *model = [[self subModelOf:viewId] mutableCopy];
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[self recursiveMixin:subModel to:model];
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[self setSubModel:model in:viewId];
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}
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[self.itemViewIds enumerateKeysAndObjectsUsingBlock:^(NSNumber *_Nonnull key, NSString *_Nonnull obj, BOOL *_Nonnull stop) {
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if ([viewId isEqualToString:obj]) {
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*stop = YES;
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NSIndexPath *indexPath = [NSIndexPath indexPathForRow:[key integerValue] inSection:0];
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[UIView performWithoutAnimation:^{
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[self.view reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
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}];
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}
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}];
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}
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- (void)callItem:(NSUInteger)position height:(CGFloat)height {
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NSNumber *old = self.itemHeights[@(position)];
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if (old && old.floatValue == height) {
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return;
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}
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self.itemHeights[@(position)] = @(height);
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NSIndexPath *indexPath = [NSIndexPath indexPathForRow:position inSection:0];
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[UIView performWithoutAnimation:^{
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[self.view reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
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}];
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}
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- (DoricViewNode *)subNodeWithViewId:(NSString *)viewId {
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__block DoricViewNode *ret = nil;
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[self.doricContext.driver ensureSyncInMainQueue:^{
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for (UITableViewCell *tableViewCell in self.view.visibleCells) {
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if ([tableViewCell isKindOfClass:[DoricTableViewCell class]]) {
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DoricListItemNode *node = ((DoricTableViewCell *) tableViewCell).doricListItemNode;
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if ([viewId isEqualToString:node.viewId]) {
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ret = node;
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break;
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}
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}
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}
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}];
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return ret;
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}
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@end
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