wot-design/lib/anchor/index.js

Mobile UI components built on vue.js

module.exports =
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/***/ 0:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return normalizeComponent; });
/* globals __VUE_SSR_CONTEXT__ */

// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).
// This module is a runtime utility for cleaner component module output and will
// be included in the final webpack user bundle.

function normalizeComponent (
  scriptExports,
  render,
  staticRenderFns,
  functionalTemplate,
  injectStyles,
  scopeId,
  moduleIdentifier, /* server only */
  shadowMode /* vue-cli only */
) {
  // Vue.extend constructor export interop
  var options = typeof scriptExports === 'function'
    ? scriptExports.options
    : scriptExports

  // render functions
  if (render) {
    options.render = render
    options.staticRenderFns = staticRenderFns
    options._compiled = true
  }

  // functional template
  if (functionalTemplate) {
    options.functional = true
  }

  // scopedId
  if (scopeId) {
    options._scopeId = 'data-v-' + scopeId
  }

  var hook
  if (moduleIdentifier) { // server build
    hook = function (context) {
      // 2.3 injection
      context =
        context || // cached call
        (this.$vnode && this.$vnode.ssrContext) || // stateful
        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional
      // 2.2 with runInNewContext: true
      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
        context = __VUE_SSR_CONTEXT__
      }
      // inject component styles
      if (injectStyles) {
        injectStyles.call(this, context)
      }
      // register component module identifier for async chunk inferrence
      if (context && context._registeredComponents) {
        context._registeredComponents.add(moduleIdentifier)
      }
    }
    // used by ssr in case component is cached and beforeCreate
    // never gets called
    options._ssrRegister = hook
  } else if (injectStyles) {
    hook = shadowMode
      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }
      : injectStyles
  }

  if (hook) {
    if (options.functional) {
      // for template-only hot-reload because in that case the render fn doesn't
      // go through the normalizer
      options._injectStyles = hook
      // register for functioal component in vue file
      var originalRender = options.render
      options.render = function renderWithStyleInjection (h, context) {
        hook.call(context)
        return originalRender(h, context)
      }
    } else {
      // inject component registration as beforeCreate hook
      var existing = options.beforeCreate
      options.beforeCreate = existing
        ? [].concat(existing, hook)
        : [hook]
    }
  }

  return {
    exports: scriptExports,
    options: options
  }
}


/***/ }),

/***/ 116:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);

// EXTERNAL MODULE: ./src/utils/animateScrollLeft.js
var animateScrollLeft = __webpack_require__(19);

// EXTERNAL MODULE: external "wot-design/lib/sticky"
var sticky_ = __webpack_require__(22);
var sticky_default = /*#__PURE__*/__webpack_require__.n(sticky_);

// CONCATENATED MODULE: ./node_modules/babel-loader/lib!./node_modules/vue-loader/lib??vue-loader-options!./packages/anchor/src/main.vue?vue&type=script&lang=js&


var anchorTimer;
/* harmony default export */ var mainvue_type_script_lang_js_ = ({
  name: 'WdAnchor',
  data: function data() {
    return {
      ifAnimate: false,
      lineStyle: {},
      clientWidth: 0,
      isScroll: true,
      anchorChange: true
    };
  },
  props: {
    value: String,
    data: {
      type: Array,
      default: function _default() {
        return [];
      }
    },
    slidableNum: {
      type: Number,
      default: 5
    },
    offsetTop: {
      type: Number,
      default: 0
    },
    containerOffsetTop: {
      type: Number,
      default: 0
    }
  },
  components: {
    Sticky: sticky_default.a
  },
  computed: {
    activeIndex: function activeIndex() {
      return this.value;
    }
  },
  watch: {
    data: function data() {
      this.lineScrollIntoView();
      this.setLineStyle();
    },
    activeIndex: function activeIndex() {
      this.lineScrollIntoView();
      this.setLineStyle();
    }
  },
  methods: {
    /**
     * 滚动效果实现
     * @param {timer} obj
     * @param {direction} number 滚动方向
     */
    onScroll: function onScroll(timer, direction) {
      var _this = this;

      clearInterval(anchorTimer);
      var bodyTop = document.documentElement.scrollTop || document.body.scrollTop;
      anchorTimer = setInterval(function () {
        if (Math.abs(bodyTop - timer.SCOLLOR_OFFSETTOP) <= timer.step) {
          window.scrollTo(0, timer.SCOLLOR_OFFSETTOP);
          clearInterval(anchorTimer);
          setTimeout(function () {
            _this.anchorChange = true;
          }, 100);
        } else {
          bodyTop += direction * timer.step;
          window.scrollTo(0, bodyTop);
        }
      }, timer.times);
    },

    /**
     * @param {String} id
     */
    anchorIndex: function anchorIndex(id) {
      var item = document.getElementById(id);
      var scrollerOffsetTop = this.getOffsetTop(item);
      var windowScrollTop = document.documentElement.scrollTop || document.body.scrollTop;
      var timer = {
        step: 30,
        times: 16,
        SCOLLOR_OFFSETTOP: scrollerOffsetTop
      };

      if (windowScrollTop > scrollerOffsetTop) {
        this.onScroll(timer, -1); // -1向上滚动 1向下滚动
      } else if (windowScrollTop < scrollerOffsetTop) {
        if (scrollerOffsetTop + document.documentElement.clientHeight > document.documentElement.offsetHeight) {
          timer = {
            step: 30,
            times: 16,
            SCOLLOR_OFFSETTOP: document.documentElement.offsetHeight - document.documentElement.clientHeight
          };
        }

        this.onScroll(timer, 1);
      }
    },

    /**
     * 获取元素以浏览器左上角为原点的距离
     * @param {Object} obj
     * @returns {String} 返回需要滚动的距离
     */
    getOffsetTop: function getOffsetTop(obj) {
      var offsetTop = obj.offsetTop; // 获取该元素对应父容器的上边距

      var node = obj.offsetParent;

      while (node != null) {
        // 判断是否有父容器，如果存在则累加其边距
        offsetTop += node.offsetTop;
        node = node.offsetParent;
      }

      return offsetTop - this.containerOffsetTop;
    },

    /**
     * Tab切换
     * @param {string} id 选中id
     * @param {Number} index 选中index
     */
    changeTab: function changeTab(id, index) {
      this.isScroll = false;
      this.anchorChange = false;
      this.anchorIndex(id);
      this.$emit('input', id);
      this.$emit('change', index);
      this.$emit('click', index);
    },
    setLineStyle: function setLineStyle() {
      var _this2 = this;

      var shouldAnimate = this.ifAnimate;
      this.$nextTick(function () {
        var left = 0;
        var width = 19;

        if (_this2.$refs["navs_".concat(_this2.activeIndex)]) {
          var _this2$$refs$ = _this2.$refs["navs_".concat(_this2.activeIndex)],
              clientWidth = _this2$$refs$.clientWidth,
              offsetLeft = _this2$$refs$.offsetLeft;

          left = offsetLeft + (clientWidth - width) / 2;
        }

        _this2.lineStyle = {
          width: "".concat(width, "px"),
          transform: "translateX(".concat(left, "px)"),
          transition: shouldAnimate ? 'width 300ms, transform 300ms' : ''
        };
      });
    },
    getNavDom: function getNavDom() {
      var _this3 = this;

      var h = this.$createElement;
      return this.data.map(function (item, index) {
        return h("div", {
          "key": item.id,
          "ref": "navs_".concat(item.id),
          "class": {
            'wd-anchor__nav-item': true,
            'is-active': _this3.activeIndex === index
          },
          "on": {
            "click": function click() {
              _this3.changeTab(item.id, index);
            }
          }
        }, [item.title]);
      });
    },
    lineScrollIntoView: function lineScrollIntoView(immediate) {
      var activeNav = this.$refs["navs_".concat(this.activeIndex)];
      if (!activeNav) return;
      var visibleWidth = this.$refs.navVisible.offsetWidth;
      var activeLeft = activeNav.offsetWidth / 2 + activeNav.offsetLeft;
      var nextNavContainerLeft = activeLeft - visibleWidth / 2;
      Object(animateScrollLeft["a" /* default */])(this.$refs.navContainer, nextNavContainerLeft, immediate ? 0 : 300);
    },
    onShow: function onShow() {
      var _this4 = this;

      this.$nextTick(function () {
        _this4.setLineStyle();

        _this4.lineScrollIntoView(true);

        _this4.ifAnimate = true;
      });
    },

    /**
     * 判断是否在可视线区
     */
    isInVisibleArea: function isInVisibleArea(ele) {
      var rect = ele.getBoundingClientRect();

      if (rect.top + this.containerOffsetTop <= window.innerHeight && rect.top <= this.containerOffsetTop && rect.bottom >= this.containerOffsetTop) {
        return true;
      }

      return false;
    },

    /**
     * 屏幕滚动事件监听
     */
    handleScroll: function handleScroll() {
      var _this5 = this;

      if (this.anchorChange) {
        // Tab切换按钮会滚动视图，标记判断滚动是否结束
        this.isScroll = true;
      }

      if (!this.isScroll) return;
      this.data.every(function (item, index) {
        if (_this5.isInVisibleArea(document.getElementById(item.id))) {
          _this5.$emit('input', item.id);

          _this5.$emit('change', index);

          return false;
        }

        return true;
      });
    }
  },
  mounted: function mounted() {
    var _this6 = this;

    this.clientWidth = document.body.clientWidth;
    this.onShow();
    this.$nextTick(function () {
      window.addEventListener('scroll', _this6.handleScroll);
    });
  },
  beforeDestroy: function beforeDestroy() {
    clearInterval(anchorTimer);
    window.removeEventListener('scroll', this.handleScroll);
  },
  render: function render(h) {
    var Navs = this.getNavDom();
    var Nav = h("div", {
      "class": "wd-anchor__nav",
      "ref": "navVisible"
    }, [h("div", {
      "class": "wd-anchor__nav-container",
      "ref": "navContainer"
    }, [Navs, h("i", {
      "class": "wd-anchor__line",
      "style": this.lineStyle
    })])]);
    return h("div", {
      "class": {
        'wd-anchor': true,
        'is-slide': this.slidableNum < this.data.length
      }
    }, [h(sticky_default.a, {
      "attrs": {
        "offsetTop": this.offsetTop,
        "container": this.$el
      }
    }, [Nav]), h("div", {
      "class": "wd-anchor__container"
    }, [h("div", {
      "class": "wd-anchor__body"
    }, [this.$slots.default])])]);
  }
});
// CONCATENATED MODULE: ./packages/anchor/src/main.vue?vue&type=script&lang=js&
 /* harmony default export */ var src_mainvue_type_script_lang_js_ = (mainvue_type_script_lang_js_); 
// EXTERNAL MODULE: ./node_modules/vue-loader/lib/runtime/componentNormalizer.js
var componentNormalizer = __webpack_require__(0);

// CONCATENATED MODULE: ./packages/anchor/src/main.vue
var main_render, staticRenderFns




/* normalize component */

var component = Object(componentNormalizer["a" /* default */])(
  src_mainvue_type_script_lang_js_,
  main_render,
  staticRenderFns,
  false,
  null,
  null,
  null
  
)

/* hot reload */
if (false) { var api; }
component.options.__file = "packages/anchor/src/main.vue"
/* harmony default export */ var main = (component.exports);
// CONCATENATED MODULE: ./packages/anchor/index.js


main.install = function (Vue) {
  Vue.component(main.name, main);
};

/* harmony default export */ var packages_anchor = __webpack_exports__["default"] = (main);

/***/ }),

/***/ 19:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony default export */ __webpack_exports__["a"] = (function ($el, to, duration) {
  var count = 0;
  var from = $el.scrollLeft;
  var frames = duration === 0 ? 1 : Math.round(duration / 16);

  function animate() {
    $el.scrollLeft += (to - from) / frames;

    if (++count < frames) {
      requestAnimationFrame(animate);
    }
  }

  animate();
});

/***/ }),

/***/ 22:
/***/ (function(module, exports) {

module.exports = require("wot-design/lib/sticky");

/***/ })

/******/ });