first commit

历届学生/逯帅帅/项目开发/上课项目/美食App/js/utils/index.js

@@ -0,0 +1,48 @@
+function $(className) {
+  var newClassName = className.split(" ");
+  if (newClassName.length > 1) {
+    var father = newClassName[newClassName.length - 2];
+    var childrenList = document.querySelector(father).children;
+
+    var arr = Array.from(childrenList).filter(function (el){
+      if (
+        el.className.indexOf( (newClassName[newClassName.length-1]).replace(".", "") ) > -1
+        ||
+        el.tagName.toLowerCase() == newClassName[newClassName.length-1]
+      ) {
+        return el;
+      }
+    });
+
+    if (arr.length > 1) {
+      return document.querySelectorAll(className)
+    } else if (arr.length == 1){
+      return document.querySelector(className)
+    } else {
+      throw new Error(`${className} 不存在，请检查`)
+    }
+
+  } else {
+    return document.querySelector(newClassName);
+
+  }
+}
+
+function scroll(callback) {
+  $("body").onscroll = () => {
+    let scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
+    let clientHeight = document.documentElement.clientHeight || document.body.clientHeight;
+    let scrollHeight = document.documentElement.scrollHeight || document.body.scrollHeight;
+
+    if(scrollHeight > clientHeight && scrollTop + clientHeight === scrollHeight) {
+      callback()
+    }
+  }
+}
+
+
+function query(name) {
+  var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
+  var r = window.location.search.substr(1).match(reg);
+  if(r!=null)return  unescape(r[2]); return null;
+}

历届学生/逯帅帅/项目开发/上课项目/美食App/js/utils/rem.js

@@ -0,0 +1,20 @@
+!(function(win, doc) {
+    function setFontSize() {
+        var winWidth = window.innerWidth;
+        doc.documentElement.style.fontSize = (winWidth / 375) * 100 + 'px';
+    }
+    var evt = 'onorientationchange' in win ? 'orientationchange' : 'resize';
+    var timer = null;
+    win.addEventListener(evt, function() {
+        clearTimeout(timer);
+        timer = setTimeout(setFontSize, 300);
+    }, false);
+    win.addEventListener("pageshow", function(e) {
+        if (e.persisted) {
+            clearTimeout(timer);
+            timer = setTimeout(setFontSize, 300);
+        }
+    }, false);
+    //初始化 
+    setFontSize();
+}(window, document));

历届学生/逯帅帅/项目开发/上课项目/美食App/js/utils/swiper.js

@@ -0,0 +1,310 @@
+// 保护
+(function () {
+
+    // 类的构造函数
+    function swiper (el,option) {
+       this.defaultOption = {
+        el: '.swiper',
+        width () {
+          return $(this.el).clientWidth
+        },
+        timer: null,
+        time: 3000,
+        initialSlide: 0,
+        direction: 'vertical',
+        speed: 800,
+        grabCursor: false,
+        loop: false,
+        autoplay: false,
+        swiperWrapper: '.swiper-wrapper',
+        on: {
+
+        },
+        pagination: {
+          el: '.swiper-pagination',
+        },
+        // 如果需要前进后退按钮
+        navigation: {
+          nextEl: '.next',
+          prevEl: '.prev',
+        },
+        // 事件控制中心，主要保存事件的
+        eventList: {}
+      }
+
+       if (typeof el == "string") {
+
+         this.defaultOption.el = el || this.defaultOption.el;
+         this.defaultOption.time = option.time || this.defaultOption.time;
+         this.defaultOption.initialSlide = option.initialSlide || this.defaultOption.initialSlide;
+         this.defaultOption.direction = option.direction || this.defaultOption.direction;
+         this.defaultOption.speed = option.speed || this.defaultOption.speed;
+         this.defaultOption.grabCursor = option.grabCursor || this.defaultOption.grabCursor;
+         this.defaultOption.loop = option.loop || this.defaultOption.loop;
+         this.defaultOption.autoplay = option.autoplay || this.defaultOption.autoplay;
+         this.defaultOption.swiperWrapper = option.swiperWrapper || this.defaultOption.swiperWrapper;
+
+           if (option.hasOwnProperty("pagination")) {
+             this.defaultOption.pagination.el = option.pagination.el || this.defaultOption.pagination.el;
+           }
+
+           if (option.hasOwnProperty("navigation")) {
+             this.defaultOption.navigation.nextEl = option.navigation.nextEl || this.defaultOption.navigation.nextEl;
+             this.defaultOption.navigation.prevEl = option.navigation.prevEl || this.defaultOption.navigation.prevEl;
+           }
+
+           if (option.hasOwnProperty("on")) {
+               for (const key in option.on) {
+                 this.defaultOption.on[key] = option.on[key]
+               }
+           }
+
+
+           this.next = $(this.defaultOption.navigation.nextEl);
+           this.wrapper = $(this.defaultOption.swiperWrapper);
+
+           this.prev = $(this.defaultOption.navigation.prevEl);
+           this.pagination = $(this.defaultOption.pagination.el);
+           this.el = $(this.defaultOption.el);
+
+           this.init();
+
+       } else {
+           throw new Error("最外层父节点的类名必传")
+       }
+    }
+
+    // 类的方法
+    swiper.prototype = {
+        init () {
+            this.CreatedPagination();
+            this.setInitialSlide();
+            this.setGrabCursor();
+
+            if (this.defaultOption.autoplay) {
+                this.autoPlay();
+                this.el.onmouseover = () => clearInterval(this.defaultOption.timer);
+                this.el.onmouseout = () => this.autoPlay();
+            }
+
+            this.nextClick();
+            this.prevClick();
+
+            this.initSwiperSlide();
+        },
+      /**
+       * 注册移动端滑动
+       */
+      initSwiperSlide: function () {
+        var fa = this.el,
+          startX = 0,
+          startY = 0;
+
+        fa.addEventListener('touchstart', function (e) {
+          e.stopPropagation()
+          startX = e.targetTouches[0].pageX
+          startY = e.targetTouches[0].pageY
+        })
+
+        var getDirection = function (startx, starty, endx, endy) {
+          // 获得角度
+          var getAngle = function(angx, angy) {
+            return Math.atan2(angy, angx) * 180 / Math.PI;
+          };
+
+          var angx = endx - startx;
+          var angy = endy - starty;
+          var result = 0;
+
+          // 如果滑动距离太短
+          if (Math.abs(angx) < 2 && Math.abs(angy) < 2) {
+            return result;
+          }
+
+          var angle = getAngle(angx, angy);
+          if (angle >= -135 && angle <= -45) {
+            result = 1;
+          } else if (angle > 45 && angle < 135) {
+            result = 2;
+          } else if ((angle >= 135 && angle <= 180) || (angle >= -180 && angle < -135)) {
+            result = 3;
+          } else if (angle >= -45 && angle <= 45) {
+            result = 4;
+          }
+
+          return result;
+        }
+
+        fa.addEventListener('touchmove', (e) => {
+          e.stopPropagation()
+          var endX = e.changedTouches[0].pageX;
+          var endY = e.changedTouches[0].pageY;
+
+          var direction = getDirection(startX, startY, endX, endY);
+          // if (direction == 3 || direction == 4) {
+          //   var x = parseInt(endX - startX) - 40
+          //   // this.$(this.defaultConf.wrapper).style.webkitTransform = `translate3d(${x}px,0px,0px)`;
+          // }
+        });
+
+        fa.addEventListener('touchend', (e) => {
+          e.stopPropagation()
+          var endX = e.changedTouches[0].pageX;
+          var endY = e.changedTouches[0].pageY;
+
+          var direction = getDirection(startX, startY, endX, endY);
+
+          switch (direction) {
+            case 0:
+              console.log("未滑动！");
+              break;
+            case 1:
+              console.log("向上！")
+              break;
+            case 2:
+              console.log("向下！")
+              break;
+            case 3:
+              console.log("向左！")
+              this.setSpeed();
+              this.animation(-this.defaultOption.width())
+              break;
+            case 4:
+              console.log("向右滑动");
+              this.setSpeed();
+              this.animation(this.defaultOption.width())
+              break;
+            default:
+          }
+        })
+      },
+        setInitialSlide() {
+            if (this.defaultOption.initialSlide != 0) {
+                this.changePagination(this.defaultOption.initialSlide)
+            }
+        },
+        setGrabCursor() {
+          this.defaultOption.grabCursor ? this.wrapper.style.cursor = "pointer" : ""
+        },
+        setSpeed() {
+            this.wrapper.style.transition = `all ease ${this.defaultOption.speed / 1000}s`;
+        },
+        nextClick() {
+            // this 指向
+            // var test = this;
+            // 1：保存this
+            // 2: =>
+            // 3: a().bind(this)
+            this.next != null ? this.next.onclick = () => {
+                this.setSpeed();
+                this.animation(-this.defaultOption.width())
+            } : ''
+        },
+        prevClick() {
+            this.prev != null ? this.prev.onclick = () => {
+                this.setSpeed();
+                this.animation(this.defaultOption.width())
+            } : ''
+        },
+        slideTo(index) {
+            this.setSpeed();
+            this.changePagination(index)
+        },
+        on (eventType,event) {
+          this.defaultOption.eventList[eventType] = event;
+        },
+        CreatedPagination() {
+          if (this.pagination != null) {
+              Array.from(this.wrapper.children).forEach((v,i) => {
+                  this.pagination.innerHTML += ` <li class="${i == 0 ? 'active' : ''}"></li>`
+              });
+              this.BindPaginationClick();
+          }
+        },
+        BindPaginationClick() {
+            Array.from(this.pagination.children).forEach((v,i) => {
+                v.onclick = () => {
+                    this.setSpeed();
+                    this.changePagination(i)
+                }
+            })
+        },
+        changePagination(i) {
+          this.defaultOption.eventList.slideChange && this.defaultOption.eventList.slideChange(i);
+          this.defaultOption.on.slideChange && this.defaultOption.on.slideChange(i);
+          if (this.pagination != null) {
+            Array.from(this.pagination.children).forEach((item) => {
+              item.className = ""
+            });
+            Array.from(this.pagination.children)[i].className = "active";
+          }
+          this.wrapper.style.transform = `translateX(${i * -this.defaultOption.width()}px)`;
+        },
+
+        animation(offset) {
+            var val = parseInt(this.wrapper.style.transform.match(/translateX\(([\s\S]*?)\)/)[1]);
+            var newOffset = offset + val;
+            var maxWidth = -(this.wrapper.children.length - 1) * this.defaultOption.width();
+
+            if (newOffset > 0) {
+                if (this.defaultOption.loop) {
+                    newOffset = maxWidth;
+                } else {
+                    newOffset = 0
+                }
+            }
+
+            if (newOffset < maxWidth) {
+                if (this.defaultOption.loop) {
+                    newOffset = 0;
+                } else {
+                    newOffset = maxWidth
+                }
+            }
+
+            var index = Math.abs(newOffset / this.defaultOption.width());
+            this.changePagination(index);
+
+          this.defaultOption.eventList.slideChange && this.defaultOption.eventList.slideChange(index);
+          this.defaultOption.on.slideChange && this.defaultOption.on.slideChange(index)
+        },
+        autoPlay () {
+          this.defaultOption.timer = setInterval(() => {
+                this.animation(-this.defaultOption.width())
+            }, this.defaultOption.time);
+        }
+    }
+
+    function $(className) {
+        var newClassName = className.split(" ");
+        if (newClassName.length > 1) {
+            var father = newClassName[newClassName.length - 2];
+            var childrenList = document.querySelector(father).children;
+
+            var arr = Array.from(childrenList).filter(function (el){
+                if (
+                    el.className.indexOf( (newClassName[newClassName.length-1]).replace(".", "") ) > -1
+                    ||
+                    el.tagName.toLowerCase() == newClassName[newClassName.length-1]
+                ) {
+                    return el;
+                }
+            });
+
+            if (arr.length > 1) {
+                return document.querySelectorAll(className)
+            } else if (arr.length == 1){
+                return document.querySelector(className)
+            } else {
+                throw new Error(`${className} 不存在，请检查`)
+            }
+
+        } else {
+            return document.querySelector(newClassName);
+
+        }
+    }
+
+    window.Swiper = swiper;
+
+})()

历届学生/逯帅帅/项目开发/上课项目/美食App/js/utils/toast.js

@@ -0,0 +1,61 @@
+class Toast {
+  constructor() {
+    this.body = document.querySelector("body");
+  }
+
+  /**
+   * time: 提示显示时间
+   * position: 位置 top = 20%, center = 50%, bottom = 20%
+   * message: 提示的文字
+   * @param option
+   */
+  tips(option = {}) {
+    var defaultOption = {
+      time: 3000,
+      position: 'center',
+      message: '默认'
+    };
+
+    defaultOption.time = option.time || defaultOption.time;
+    defaultOption.position = option.position || defaultOption.position;
+    defaultOption.message = option.message || defaultOption.message;
+
+    var tpl = `<div class="lb-toast" style="${
+      defaultOption.position == "bottom" 
+        ? 'bottom: 10%'
+        : `top: ${defaultOption.position == "top" ? '10%' : '50%'}`
+    }">
+                    <div class="lb-toast_text">${defaultOption.message}</div>
+                </div>`;
+
+
+    this.body.innerHTML += tpl;
+
+    setTimeout(() => {
+      var toast = document.querySelector(".lb-toast");
+      console.log(toast)
+      this.body.removeChild(toast)
+    }, defaultOption.time)
+
+  }
+
+  loading() {
+    var tpl = `<div class="spinner">
+                  <div class="rect1"></div>
+                  <div class="rect2"></div>
+                  <div class="rect3"></div>
+                  <div class="rect4"></div>
+                  <div class="rect5"></div>
+              </div>`;
+    this.body.innerHTML += tpl;
+  }
+
+  clearLoading() {
+    var spinner = document.querySelector(".spinner");
+    if (spinner != null) {
+      this.body.removeChild(spinner)
+    }
+  }
+}
+
+var toast = new Toast();