2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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import Vue from 'vue';
import loadingVue from './loading.vue';
import { addClass, removeClass, getStyle } from 'element-ui/src/utils/dom';
import { PopupManager } from 'element-ui/src/utils/popup';
import afterLeave from 'element-ui/src/utils/after-leave';
import merge from 'element-ui/src/utils/merge';
const LoadingConstructor = Vue.extend(loadingVue);
const defaults = {
text: null,
fullscreen: true,
body: false,
lock: false,
customClass: ''
};
let fullscreenLoading;
LoadingConstructor.prototype.originalPosition = '';
LoadingConstructor.prototype.originalOverflow = '';
LoadingConstructor.prototype.close = function() {
if (this.fullscreen) {
fullscreenLoading = undefined;
}
afterLeave(this, _ => {
const target = this.fullscreen || this.body
? document.body
: this.target;
removeClass(target, 'el-loading-parent--relative');
removeClass(target, 'el-loading-parent--hidden');
if (this.$el && this.$el.parentNode) {
this.$el.parentNode.removeChild(this.$el);
}
this.$destroy();
}, 300);
this.visible = false;
};
const addStyle = (options, parent, instance) => {
let maskStyle = {};
if (options.fullscreen) {
instance.originalPosition = getStyle(document.body, 'position');
instance.originalOverflow = getStyle(document.body, 'overflow');
maskStyle.zIndex = PopupManager.nextZIndex();
} else if (options.body) {
instance.originalPosition = getStyle(document.body, 'position');
['top', 'left'].forEach(property => {
let scroll = property === 'top' ? 'scrollTop' : 'scrollLeft';
maskStyle[property] = options.target.getBoundingClientRect()[property] +
document.body[scroll] +
document.documentElement[scroll] +
'px';
});
['height', 'width'].forEach(property => {
maskStyle[property] = options.target.getBoundingClientRect()[property] + 'px';
});
} else {
instance.originalPosition = getStyle(parent, 'position');
}
Object.keys(maskStyle).forEach(property => {
instance.$el.style[property] = maskStyle[property];
});
};
const Loading = (options = {}) => {
if (Vue.prototype.$isServer) return;
options = merge({}, defaults, options);
if (typeof options.target === 'string') {
options.target = document.querySelector(options.target);
}
options.target = options.target || document.body;
if (options.target !== document.body) {
options.fullscreen = false;
} else {
options.body = true;
}
if (options.fullscreen && fullscreenLoading) {
return fullscreenLoading;
}
let parent = options.body ? document.body : options.target;
let instance = new LoadingConstructor({
el: document.createElement('div'),
data: options
});
addStyle(options, parent, instance);
if (instance.originalPosition !== 'absolute' && instance.originalPosition !== 'fixed') {
addClass(parent, 'el-loading-parent--relative');
}
if (options.fullscreen && options.lock) {
addClass(parent, 'el-loading-parent--hidden');
}
parent.appendChild(instance.$el);
Vue.nextTick(() => {
instance.visible = true;
});
if (options.fullscreen) {
fullscreenLoading = instance;
}
return instance;
};
export default Loading;
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