elara-ui/lib/infinite-scroll.js

Elara based on element-ui, and add other usefull components

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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
  }
}


/***/ }),

/***/ 144:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

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

// EXTERNAL MODULE: external "throttle-debounce/debounce"
var debounce_ = __webpack_require__(17);
var debounce_default = /*#__PURE__*/__webpack_require__.n(debounce_);

// EXTERNAL MODULE: external "elara-ui/lib/utils/types"
var types_ = __webpack_require__(20);

// EXTERNAL MODULE: external "elara-ui/lib/utils/dom"
var dom_ = __webpack_require__(2);

// CONCATENATED MODULE: ./node_modules/element-ui/packageDest/infinite-scroll/src/main.js
var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();





var getStyleComputedProperty = function getStyleComputedProperty(element, property) {
  if (element === window) {
    element = document.documentElement;
  }

  if (element.nodeType !== 1) {
    return [];
  }
  // NOTE: 1 DOM access here
  var css = window.getComputedStyle(element, null);
  return property ? css[property] : css;
};

var entries = function entries(obj) {
  return Object.keys(obj || {}).map(function (key) {
    return [key, obj[key]];
  });
};

var getPositionSize = function getPositionSize(el, prop) {
  return el === window || el === document ? document.documentElement[prop] : el[prop];
};

var getOffsetHeight = function getOffsetHeight(el) {
  return getPositionSize(el, 'offsetHeight');
};

var getClientHeight = function getClientHeight(el) {
  return getPositionSize(el, 'clientHeight');
};

var scope = 'ElaraInfiniteScroll';
var attributes = {
  delay: {
    type: Number,
    default: 200
  },
  distance: {
    type: Number,
    default: 0
  },
  disabled: {
    type: Boolean,
    default: false
  },
  immediate: {
    type: Boolean,
    default: true
  }
};

var main_getScrollOptions = function getScrollOptions(el, vm) {
  if (!Object(types_["isHtmlElement"])(el)) return {};

  return entries(attributes).reduce(function (map, _ref) {
    var _ref2 = _slicedToArray(_ref, 2),
        key = _ref2[0],
        option = _ref2[1];

    var type = option.type,
        defaultValue = option.default;

    var value = el.getAttribute('infinite-scroll-' + key);
    value = Object(types_["isUndefined"])(vm[value]) ? value : vm[value];
    switch (type) {
      case Number:
        value = Number(value);
        value = Number.isNaN(value) ? defaultValue : value;
        break;
      case Boolean:
        value = Object(types_["isDefined"])(value) ? value === 'false' ? false : Boolean(value) : defaultValue;
        break;
      default:
        value = type(value);
    }
    map[key] = value;
    return map;
  }, {});
};

var getElementTop = function getElementTop(el) {
  return el.getBoundingClientRect().top;
};

var main_handleScroll = function handleScroll(cb) {
  var _scope = this[scope],
      el = _scope.el,
      vm = _scope.vm,
      container = _scope.container,
      observer = _scope.observer;

  var _getScrollOptions = main_getScrollOptions(el, vm),
      distance = _getScrollOptions.distance,
      disabled = _getScrollOptions.disabled;

  if (disabled) return;

  var containerInfo = container.getBoundingClientRect();
  if (!containerInfo.width && !containerInfo.height) return;

  var shouldTrigger = false;

  if (container === el) {
    // be aware of difference between clientHeight & offsetHeight & window.getComputedStyle().height
    var scrollBottom = container.scrollTop + getClientHeight(container);
    shouldTrigger = container.scrollHeight - scrollBottom <= distance;
  } else {
    var heightBelowTop = getOffsetHeight(el) + getElementTop(el) - getElementTop(container);
    var offsetHeight = getOffsetHeight(container);
    var borderBottom = Number.parseFloat(getStyleComputedProperty(container, 'borderBottomWidth'));
    shouldTrigger = heightBelowTop - offsetHeight + borderBottom <= distance;
  }

  if (shouldTrigger && Object(types_["isFunction"])(cb)) {
    cb.call(vm);
  } else if (observer) {
    observer.disconnect();
    this[scope].observer = null;
  }
};

/* harmony default export */ var main = ({
  name: 'InfiniteScroll',
  inserted: function inserted(el, binding, vnode) {
    var cb = binding.value;

    var vm = vnode.context;
    // only include vertical scroll
    var container = Object(dom_["getScrollContainer"])(el, true);

    var _getScrollOptions2 = main_getScrollOptions(el, vm),
        delay = _getScrollOptions2.delay,
        immediate = _getScrollOptions2.immediate;

    var onScroll = debounce_default()(delay, main_handleScroll.bind(el, cb));

    el[scope] = { el: el, vm: vm, container: container, onScroll: onScroll };

    if (container) {
      container.addEventListener('scroll', onScroll);

      if (immediate) {
        var observer = el[scope].observer = new MutationObserver(onScroll);
        observer.observe(container, { childList: true, subtree: true });
        onScroll();
      }
    }
  },
  unbind: function unbind(el) {
    var _el$scope = el[scope],
        container = _el$scope.container,
        onScroll = _el$scope.onScroll;

    if (container) {
      container.removeEventListener('scroll', onScroll);
    }
  }
});
// CONCATENATED MODULE: ./node_modules/element-ui/packageDest/infinite-scroll/index.js


/* istanbul ignore next */
main.install = function (Vue) {
  Vue.directive(main.name, main);
};

/* harmony default export */ var infinite_scroll = (main);
// CONCATENATED MODULE: ./node_modules/babel-loader/lib??ref--6!./node_modules/vue-loader/lib??vue-loader-options!./packages/infinite-scroll/src/main.vue?vue&type=script&lang=js&


/* harmony default export */ var mainvue_type_script_lang_js_ = ({
  name: 'ElaraInfiniteScroll',
  extends: infinite_scroll
});
// CONCATENATED MODULE: ./packages/infinite-scroll/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/infinite-scroll/src/main.vue
var render, staticRenderFns




/* normalize component */

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

/* harmony default export */ var src_main = (component.exports);
// CONCATENATED MODULE: ./packages/infinite-scroll/index.js

src_main.install = function (Vue) {
  Vue.component(src_main.name, src_main);
};
/* harmony default export */ var packages_infinite_scroll = __webpack_exports__["default"] = (src_main);

/***/ }),

/***/ 17:
/***/ (function(module, exports) {

module.exports = require("throttle-debounce/debounce");

/***/ }),

/***/ 2:
/***/ (function(module, exports) {

module.exports = require("elara-ui/lib/utils/dom");

/***/ }),

/***/ 20:
/***/ (function(module, exports) {

module.exports = require("elara-ui/lib/utils/types");

/***/ })

/******/ });