【ADD】button新增防抖节流模式+附带案例

basicPage/button/button.vue

@@ -14,7 +14,7 @@
       
       <demo-title title="大小">
         <view>
-          <tn-button size="sm" margin="10rpx 10rpx">按钮</tn-button>
+          <tn-button size="sm" margin="10rpx 10rpx" >按钮</tn-button>
           <tn-button margin="10rpx 10rpx">按钮</tn-button>
           <tn-button size="lg" margin="10rpx 10rpx">按钮</tn-button>
           <tn-button width="150rpx" height="100rpx" :fontSize="40" margin="10rpx 10rpx">按钮</tn-button>
@@ -78,6 +78,11 @@
         <tn-button :disabled="true" width="100%" height="100rpx" margin="10rpx 0">按钮</tn-button>
       </demo-title>
 	  
+	  <demo-title title="防抖节流(默认间隔200ms,这里用1s)">
+	    <tn-button width="100%" height="100rpx" margin="10rpx 0" @click="say('点击了防抖')" :blockTime="1000" scene="debounce">防抖模式</tn-button>
+		<tn-button width="100%" height="100rpx" margin="10rpx 0" @click="say('点击了节流')" :blockTime="1000" scene="throttle">节流模式</tn-button>
+	  </demo-title>
+      
       <view class="tn-padding-bottom-lg"></view>
       
     </view>
@@ -97,6 +102,10 @@
       }
     },
     methods: {
+		say(msg){
+			this.$tn.message.toast(msg)
+		},
+
     }
   }
 </script>

tuniao-ui/components/tn-button/tn-button.vue

@@ -1,29 +1,22 @@
 <template>
-  <button
+	<button class="tn-btn-class tn-btn" :class="[
-    class="tn-btn-class tn-btn"
-    :class="[
       buttonClass,
       backgroundColorClass,
       fontColorClass
-    ]"
+    ]" :style="[buttonStyle]" hover-class="tn-hover" :loading="loading" :disabled="disabled" :form-type="formType"
-    :style="[buttonStyle]"
+		:open-type="openType" @getuserinfo="handleGetUserInfo" @getphonenumber="handleGetPhoneNumber"
-    hover-class="tn-hover"
+		@contact="handleContact" @error="handleError" @tap="handleClick">
-    :loading="loading"
-    :disabled="disabled"
-    :form-type="formType"
-    :open-type="openType"
-    @getuserinfo="handleGetUserInfo"
-    @getphonenumber="handleGetPhoneNumber"
-    @contact="handleContact"
-    @error="handleError"
-    @tap="handleClick"
-  >
 		<slot></slot>
 	</button>
 </template>
 
 <script>
 	import componentsColorMixin from '../../libs/mixin/components_color.js'
+	import {
+		debounceFun,
+		throttleFun
+	} from '../../libs/function/applyEven.js'
+	let spanTime = 200;
 	export default {
 		mixins: [componentsColorMixin],
 		name: "tn-button",
@@ -113,6 +106,16 @@
 			blockRepeatClick: {
 				type: Boolean,
 				default: false
+			},
+			//场景：（如果开启blockRepeatClick，这里无效）none ： 不开启防抖节流模式，debounce ：防抖模式 throttle：节流模式
+			scene:{
+				type: String,
+				default: 'none'
+			},
+			// 防抖节流间隔时间（毫秒）
+			blockTime:{
+				type: Number,
+				default: 200
 			}
 		},
 		computed: {
@@ -162,7 +165,7 @@
 			// 按钮的样式
 			buttonStyle() {
 				let style = {}
-        switch(this.size) {
+				switch (this.size) {
 					case 'sm':
 						style.padding = '0 20rpx'
 						style.fontSize = '22rpx'
@@ -173,7 +176,7 @@
 						style.fontSize = '32rpx'
 						style.height = this.height || '80rpx'
 						break
-          default :
+					default:
 						style.padding = '0 30rpx'
 						style.fontSize = '28rpx'
 						style.height = this.height || '64rpx'
@@ -212,7 +215,8 @@
 				if (this.shadow && !this.backgroundColorClass) {
 					if (this.backgroundColorStyle.indexOf('#') != -1) {
 						style.boxShadow = `6rpx 6rpx 8rpx ${(this.backgroundColorStyle || '#000000')}10`
-          } else if (this.backgroundColorStyle.indexOf('rgb') != -1 || this.backgroundColorStyle.indexOf('rgba') != -1 || !this.backgroundColorStyle) {
+					} else if (this.backgroundColorStyle.indexOf('rgb') != -1 || this.backgroundColorStyle.indexOf(
+						'rgba') != -1 || !this.backgroundColorStyle) {
 						style.boxShadow = `6rpx 6rpx 8rpx ${(this.backgroundColorStyle || 'rgba(0, 0, 0, 0.1)')}`
 					}
 
@@ -223,28 +227,43 @@
 		},
 		data() {
 			return {
-        // 上次点击的时间
+
-        clickTime: 0,
-        // 两次点击防抖的间隔时间
-        clickIntervalTime: 200
 			}
 		},
+		watch:{
+			//支持动态修改时间，但是这里是没有做撤销上一次的方法，毕竟这种场景非常少
+			//这里只是防止用户使用时复用了组件，有场景时长要求二次变动，而做的优化
+			blockTime:{
+				handler(newVal,oldVal){
+				    this.initScene();
+				}
+			},
+		},
+		mounted() {
+			this.initScene()
+		},
 		methods: {
-      // 按钮点击事件
+			initScene(){
-      handleClick() {
+				// 动态传入blockTime，需要重新初始化,参数
-        if (this.disabled) {
+				//防抖模式
-          return
+				this.debounceClick=debounceFun(function() {
-        }
+					this.emitClick();
-        if (this.blockRepeatClick) {
+				}, this.blockTime);
-          const nowTime = new Date().getTime()
+				//节流模式
-          if (nowTime - this.clickTime <= this.clickIntervalTime) {
+				this.throttleClick=throttleFun(function() {
-            return
+					this.emitClick();
-          }
+				}, this.blockTime);	
-          this.clickTime = nowTime
+			},
-          setTimeout(() => {
+			//防抖模式
-            this.clickTime = 0
+			debounceClick:debounceFun(function() {
-          }, this.clickIntervalTime)
+				this.emitClick();
-        }
+			}, spanTime),
+			//节流模式
+			throttleClick:throttleFun(function() {
+				this.emitClick();
+			}, spanTime),
+			emitClick() {
+				//触发事件
 				this.$emit('click', {
 					index: Number(this.index)
 				})
@@ -253,16 +272,45 @@
 					index: Number(this.index)
 				})
 			},
-      handleGetUserInfo({ detail = {} } = {}) {
+			// 按钮点击事件
+			handleClick() {
+				if (this.disabled) {
+					return
+				}
+				//兼容旧的
+				if (this.blockRepeatClick) {
+					this.throttleClick();
+					return;
+				}
+				//普通模式，触发多少次就回调多少次
+				if(this.scene === 'none'){
+					this.emitClick();
+				}else if(this.scene == 'debounce'){
+					//防抖模式
+					this.debounceClick();
+				}else{
+					//节流模式
+					this.throttleClick();
+				}
+			},
+			handleGetUserInfo({
+				detail = {}
+			} = {}) {
 				this.$emit('getuserinfo', detail);
 			},
-      handleContact({ detail = {} } = {}) {
+			handleContact({
+				detail = {}
+			} = {}) {
 				this.$emit('contact', detail);
 			},
-      handleGetPhoneNumber({ detail = {} } = {}) {
+			handleGetPhoneNumber({
+				detail = {}
+			} = {}) {
 				this.$emit('getphonenumber', detail);
 			},
-      handleError({ detail = {} } = {}) {
+			handleError({
+				detail = {}
+			} = {}) {
 				this.$emit('error', detail);
 			},
 
@@ -272,7 +320,6 @@
 </script>
 
 <style lang="scss" scoped>
-  
 	.tn-btn {
 		position: relative;
 		display: inline-flex;
@@ -298,5 +345,4 @@
 			}
 		}
 	}
-  
 </style>

tuniao-ui/libs/function/applyEven.js

@@ -0,0 +1,28 @@
+//防抖
+export function debounceFun(func, delay=500) {
+	//定时器
+	let timer;
+	return function(...args) {
+		// 清除之前设置的定时器
+		clearTimeout(timer);
+		timer = setTimeout(() => {
+			func.apply(this, args);
+		}, delay);
+	};
+}
+
+//节流
+export function throttleFun(func, delay=500) {
+	//定时器
+	let timer = null;
+	return function(...args) {
+		if(!timer){
+			timer = setTimeout(() => {
+				//执行前清空
+				timer = null;
+				console.log("执行了")
+				func.apply(this, args);
+			}, delay);
+		}
+	};
+}