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doric-iOS/Pod/Classes/Refresh/DoricRefreshableNode.h

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+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * 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.
+ */
+//
+// Created by pengfei.zhou on 2019/11/26.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricSuperNode.h"
+#import "DoricSwipeRefreshLayout.h"
+
+@interface DoricRefreshableNode : DoricSuperNode<DoricSwipeRefreshLayout *>
+@end

doric-iOS/Pod/Classes/Refresh/DoricRefreshableNode.m

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+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * 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.
+ */
+//
+// Created by pengfei.zhou on 2019/11/26.
+//
+
+#import "DoricRefreshableNode.h"
+#import "Doric.h"
+
+@interface DoricRefreshableNode () <DoricSwipePullingDelegate>
+@property(nonatomic, strong) DoricViewNode *contentNode;
+@property(nonatomic, copy) NSString *contentViewId;
+@property(nonatomic, strong) DoricViewNode *headerNode;
+@property(nonatomic, copy) NSString *headerViewId;
+@end
+
+@implementation DoricRefreshableNode
+- (DoricSwipeRefreshLayout *)build {
+    return [[DoricSwipeRefreshLayout new] also:^(DoricSwipeRefreshLayout *it) {
+        it.swipePullingDelegate = self;
+
+    }];
+}
+
+- (void)blendView:(DoricSwipeRefreshLayout *)view forPropName:(NSString *)name propValue:(id)prop {
+    if ([@"content" isEqualToString:name]) {
+        self.contentViewId = prop;
+    } else if ([@"header" isEqualToString:name]) {
+        self.headerViewId = prop;
+    } else if ([@"onRefresh" isEqualToString:name]) {
+        __weak typeof(self) _self = self;
+        NSString *funcId = prop;
+        self.view.onRefreshBlock = ^{
+            __strong  typeof(_self) self = _self;
+            [self callJSResponse:funcId, nil];
+        };
+    } else {
+        [super blendView:view forPropName:name propValue:prop];
+    }
+}
+
+- (DoricViewNode *)subNodeWithViewId:(NSString *)viewId {
+    if ([viewId isEqualToString:self.contentViewId]) {
+        return self.contentNode;
+    } else if ([viewId isEqualToString:self.headerViewId]) {
+        return self.headerNode;
+    } else {
+        return nil;
+    }
+}
+
+- (void)blend:(NSDictionary *)props {
+    [super blend:props];
+    [self blendContent];
+    [self blendHeader];
+}
+
+- (void)blendContent {
+    NSDictionary *contentModel = [self subModelOf:self.contentViewId];
+    if (!contentModel) {
+        return;
+    }
+    NSString *viewId = contentModel[@"id"];
+    NSString *type = contentModel[@"type"];
+    NSDictionary *childProps = contentModel[@"props"];
+    if (self.contentNode) {
+        if ([self.contentNode.viewId isEqualToString:viewId]) {
+            //skip
+        } else {
+            if (self.reusable && [type isEqualToString:self.contentNode.type]) {
+                [self.contentNode also:^(DoricViewNode *it) {
+                    it.viewId = viewId;
+                    [it blend:childProps];
+                }];
+            } else {
+                self.contentNode = [[DoricViewNode create:self.doricContext withType:type] also:^(DoricViewNode *it) {
+                    it.viewId = viewId;
+                    [it initWithSuperNode:self];
+                    [it blend:childProps];
+                    self.view.contentView = it.view;
+                }];
+            }
+        }
+    } else {
+        self.contentNode = [[DoricViewNode create:self.doricContext withType:type] also:^(DoricViewNode *it) {
+            it.viewId = viewId;
+            [it initWithSuperNode:self];
+            [it blend:childProps];
+            self.view.contentView = it.view;
+        }];
+    }
+}
+
+- (void)blendHeader {
+    NSDictionary *headerModel = [self subModelOf:self.headerViewId];
+    if (!headerModel) {
+        return;
+    }
+    NSString *viewId = headerModel[@"id"];
+    NSString *type = headerModel[@"type"];
+    NSDictionary *childProps = headerModel[@"props"];
+    if (self.headerNode) {
+        if ([self.headerNode.viewId isEqualToString:viewId]) {
+            //skip
+        } else {
+            if (self.reusable && [type isEqualToString:self.headerNode.type]) {
+                [self.headerNode also:^(DoricViewNode *it) {
+                    it.viewId = viewId;
+                    [it blend:childProps];
+                }];
+            } else {
+                self.headerNode = [[DoricViewNode create:self.doricContext withType:type] also:^(DoricViewNode *it) {
+                    it.viewId = viewId;
+                    [it initWithSuperNode:self];
+                    [it blend:childProps];
+                    self.view.headerView = it.view;
+                }];
+            }
+        }
+    } else {
+        self.headerNode = [[DoricViewNode create:self.doricContext withType:type] also:^(DoricViewNode *it) {
+            it.viewId = viewId;
+            [it initWithSuperNode:self];
+            [it blend:childProps];
+            self.view.headerView = it.view;
+        }];
+    }
+}
+
+- (void)blendSubNode:(NSDictionary *)subModel {
+    [[self subNodeWithViewId:subModel[@"id"]] blend:subModel[@"props"]];
+}
+
+- (void)startAnimation {
+    [self.headerNode callJSResponse:@"startAnimation", nil];
+}
+
+- (void)stopAnimation {
+    [self.headerNode callJSResponse:@"stopAnimation", nil];
+}
+
+- (void)setPullingDistance:(CGFloat)distance {
+    [self.headerNode callJSResponse:@"setPullingDistance", @(distance), nil];
+}
+
+- (void)setRefreshing:(NSNumber *)refreshable withPromise:(DoricPromise *)promise {
+    self.view.refreshing = [refreshable boolValue];
+    [promise resolve:nil];
+}
+
+- (void)setRefreshable:(NSNumber *)refreshing withPromise:(DoricPromise *)promise {
+    self.view.refreshable = [refreshing boolValue];
+    [promise resolve:nil];
+}
+
+- (NSNumber *)isRefreshing {
+    return @(self.view.refreshing);
+}
+
+- (NSNumber *)isRefreshable {
+    return @(self.view.refreshable);
+}
+@end

doric-iOS/Pod/Classes/Refresh/DoricSwipeRefreshLayout.h

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+//
+// Created by pengfei.zhou on 2019/11/26.
+//
+
+#import <Foundation/Foundation.h>
+
+@protocol DoricSwipePullingDelegate <NSObject>
+- (void)startAnimation;
+
+- (void)stopAnimation;
+
+- (void)setPullingDistance:(CGFloat)rotation;
+@end
+
+@interface DoricSwipeRefreshLayout : UIScrollView
+@property(nonatomic, strong) UIView *contentView;
+@property(nonatomic, strong) UIView *headerView;
+@property(nonatomic, assign) BOOL refreshable;
+@property(nonatomic, assign) BOOL refreshing;
+@property(nonatomic, strong) void (^onRefreshBlock)(void);
+@property(nonatomic, weak) id <DoricSwipePullingDelegate> swipePullingDelegate;
+@end

doric-iOS/Pod/Classes/Refresh/DoricSwipeRefreshLayout.m

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+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * 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.
+ */
+//
+// Created by pengfei.zhou on 2019/11/26.
+//
+
+#import "DoricSwipeRefreshLayout.h"
+#import "UIView+Doric.h"
+#import "DoricLayouts.h"
+#import "Doric.h"
+
+@interface DoricSwipeRefreshLayout () <UIScrollViewDelegate>
+
+@end
+
+@implementation DoricSwipeRefreshLayout
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.showsHorizontalScrollIndicator = NO;
+        self.showsVerticalScrollIndicator = NO;
+        self.alwaysBounceVertical = YES;
+        self.delegate = self;
+        if (@available(iOS 11, *)) {
+            self.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
+        }
+    }
+    return self;
+}
+
+- (instancetype)init {
+    if (self = [super init]) {
+        self.showsHorizontalScrollIndicator = NO;
+        self.showsVerticalScrollIndicator = NO;
+        self.alwaysBounceVertical = YES;
+        self.delegate = self;
+        if (@available(iOS 11, *)) {
+            self.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
+        }
+    }
+    return self;
+}
+
+- (CGSize)sizeThatFits:(CGSize)size {
+    if (self.contentView) {
+        return [self.contentView measureSize:size];
+    }
+    return CGSizeZero;
+}
+
+- (BOOL)requestFromSubview:(UIView *)subview {
+    if (subview == self.headerView) {
+        return NO;
+    }
+    return [super requestFromSubview:subview];
+}
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+}
+
+- (void)layoutSelf:(CGSize)targetSize {
+    if (self.contentOffset.y != 0) {
+        return;
+    }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
+    [self.headerView also:^(UIView *it) {
+        [it layoutSelf:[it measureSize:targetSize]];
+        it.bottom = 0;
+        it.centerX = self.centerX;
+    }];
+    [self.contentView also:^(UIView *it) {
+        [it layoutSelf:targetSize];
+    }];
+    self.contentSize = self.frame.size;
+}
+
+- (void)setContentView:(UIView *)contentView {
+    if (_contentView) {
+        [_contentView removeFromSuperview];
+    }
+    _contentView = contentView;
+    [self addSubview:contentView];
+}
+
+- (void)setHeaderView:(UIView *)headerView {
+    if (_headerView) {
+        [_headerView removeFromSuperview];
+    }
+    _headerView = headerView;
+    [self addSubview:headerView];
+    self.refreshable = YES;
+}
+
+- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
+    if (-scrollView.contentOffset.y >= self.headerView.height) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            self.refreshing = YES;
+        });
+    }
+}
+
+- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
+    if (scrollView.contentOffset.y <= 0) {
+        [self.swipePullingDelegate setPullingDistance:-scrollView.contentOffset.y];
+    }
+}
+
+- (void)setContentOffset:(CGPoint)contentOffset {
+    [super setContentOffset:contentOffset];
+}
+
+- (void)setRefreshing:(BOOL)refreshing {
+    if (_refreshing == refreshing) {
+        return;
+    }
+    if (refreshing) {
+        [self setContentOffset:CGPointMake(0, -self.headerView.height) animated:YES];
+        self.scrollEnabled = NO;
+        if (self.onRefreshBlock) {
+            self.onRefreshBlock();
+        }
+    } else {
+        [self setContentOffset:(CGPoint) {0, 0} animated:YES];
+        self.scrollEnabled = YES;
+    }
+    _refreshing = refreshing;
+}
+
+- (void)setRefreshable:(BOOL)refreshable {
+    self.scrollEnabled = refreshable;
+    if (refreshable) {
+        self.contentOffset = (CGPoint) {0, 0};
+        self.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
+    }
+}
+
+- (BOOL)refreshable {
+    return self.scrollEnabled;
+}
+
+- (void)setContentSize:(CGSize)contentSize {
+    [super setContentSize:contentSize];
+}
+@end