iOS:use JSDispatcher to avoid overstock too many js tasks

doric-iOS/Pod/Classes/Shader/DoricFlowLayoutNode.m

@@ -21,6 +21,7 @@
 #import "DoricFlowLayoutItemNode.h"
 #import "DoricExtensions.h"
 #import <JavaScriptCore/JavaScriptCore.h>
+#import "DoricJSDispatcher.h"
 
 @protocol DoricFlowLayoutDelegate
 - (CGFloat)doricFlowLayoutItemHeightAtIndexPath:(NSIndexPath *)indexPath;
@@ -174,6 +175,7 @@ @interface DoricFlowLayoutNode () <UICollectionViewDataSource, UICollectionViewD
 @property(nonatomic, strong) NSMutableSet <DoricDidScrollBlock> *didScrollBlocks;
 @property(nonatomic, copy) NSString *onScrollFuncId;
 @property(nonatomic, copy) NSString *onScrollEndFuncId;
+@property(nonatomic, strong) DoricJSDispatcher *jsDispatcher;
 @end
 
 @implementation DoricFlowLayoutNode
@@ -384,12 +386,19 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
         block(scrollView);
     }
     if (self.onScrollFuncId) {
-        [self callJSResponse:self.onScrollFuncId,
+        if (!self.jsDispatcher) {
+            self.jsDispatcher = [DoricJSDispatcher new];
+        }
+        __weak typeof(self) __self = self;
+        [self.jsDispatcher dispatch:^DoricAsyncResult * {
+            __strong typeof(__self) self = __self;
+            return [self callJSResponse:self.onScrollFuncId,
                                         @{
                                                 @"x": @(self.view.contentOffset.x),
                                                 @"y": @(self.view.contentOffset.y),
                                         },
                             nil];
+        }];
     }
 }
 

doric-iOS/Pod/Classes/Shader/DoricListNode.m

@@ -23,6 +23,7 @@
 #import "DoricListItemNode.h"
 #import "DoricLayouts.h"
 #import "DoricRefreshableNode.h"
+#import "DoricJSDispatcher.h"
 
 @interface DoricTableViewCell : UITableViewCell
 @property(nonatomic, strong) DoricListItemNode *doricListItemNode;
@@ -69,6 +70,7 @@ @interface DoricListNode () <UITableViewDataSource, UITableViewDelegate>
 @property(nonatomic, strong) NSMutableSet <DoricDidScrollBlock> *didScrollBlocks;
 @property(nonatomic, copy) NSString *onScrollFuncId;
 @property(nonatomic, copy) NSString *onScrollEndFuncId;
+@property(nonatomic, strong) DoricJSDispatcher *jsDispatcher;
 @end
 
 @implementation DoricListNode
@@ -264,12 +266,19 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
         block(scrollView);
     }
     if (self.onScrollFuncId) {
-        [self callJSResponse:self.onScrollFuncId,
+        if (!self.jsDispatcher) {
+            self.jsDispatcher = [DoricJSDispatcher new];
+        }
+        __weak typeof(self) __self = self;
+        [self.jsDispatcher dispatch:^DoricAsyncResult * {
+            __strong typeof(__self) self = __self;
+            return [self callJSResponse:self.onScrollFuncId,
                                         @{
                                                 @"x": @(self.view.contentOffset.x),
                                                 @"y": @(self.view.contentOffset.y),
                                         },
                             nil];
+        }];
     }
 }
 

doric-iOS/Pod/Classes/Shader/DoricScrollerNode.m

@@ -23,6 +23,7 @@
 #import "DoricExtensions.h"
 #import "DoricRefreshableNode.h"
 #import "DoricPromise.h"
+#import "DoricJSDispatcher.h"
 
 @implementation DoricScrollView
 
@@ -54,6 +55,7 @@ @interface DoricScrollerNode () <UIScrollViewDelegate>
 @property(nonatomic, copy) NSString *onScrollFuncId;
 @property(nonatomic, copy) NSString *onScrollEndFuncId;
 @property(nonatomic, strong) NSMutableSet <DoricDidScrollBlock> *didScrollBlocks;
+@property(nonatomic, strong) DoricJSDispatcher *jsDispatcher;
 @end
 
 @implementation DoricScrollerNode
@@ -144,12 +146,19 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
         block(scrollView);
     }
     if (self.onScrollFuncId) {
-        [self callJSResponse:self.onScrollFuncId,
+        if (!self.jsDispatcher) {
+            self.jsDispatcher = [DoricJSDispatcher new];
+        }
+        __weak typeof(self) __self = self;
+        [self.jsDispatcher dispatch:^DoricAsyncResult * {
+            __strong typeof(__self) self = __self;
+            return [self callJSResponse:self.onScrollFuncId,
                                         @{
                                                 @"x": @(self.view.contentOffset.x),
                                                 @"y": @(self.view.contentOffset.y),
                                         },
                             nil];
+        }];
     }
 }
 

doric-iOS/Pod/Classes/Util/DoricJSDispatcher.h

@@ -0,0 +1,25 @@
+/*
+ * 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 2020/3/25.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricViewNode.h"
+
+@interface DoricJSDispatcher : NSObject
+- (void)dispatch:(DoricAsyncResult *(^)(void))block;
+@end

doric-iOS/Pod/Classes/Util/DoricJSDispatcher.m

@@ -0,0 +1,59 @@
+/*
+ * 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 2020/3/25.
+//
+
+#import "DoricJSDispatcher.h"
+
+@interface DoricJSDispatcher ()
+@property(nonatomic, strong) NSMutableArray <DoricAsyncResult *(^)(void)> *blocks;
+@property(nonatomic, assign) BOOL consuming;
+@end
+
+@implementation DoricJSDispatcher
+- (void)dispatch:(DoricAsyncResult *(^)(void))block {
+    if (!self.blocks) {
+        self.blocks = [@[block] mutableCopy];
+    } else {
+        while (self.blocks.count > 0) {
+            [self.blocks removeLastObject];
+        }
+        [self.blocks insertObject:block atIndex:0];
+    }
+    if (!self.consuming) {
+        [self consume];
+    }
+}
+
+- (void)consume {
+    DoricAsyncResult *(^block )(void) = self.blocks.lastObject;
+    if (block) {
+        self.consuming = YES;
+        [self.blocks removeLastObject];
+        DoricAsyncResult *result = block();
+        __weak typeof(self) __self = self;
+        result.finishCallback = ^{
+            dispatch_async(dispatch_get_main_queue(), ^{
+                __strong typeof(__self) self = __self;
+                [self consume];
+            });
+        };
+    } else {
+        self.consuming = NO;
+    }
+}
+@end