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https://gitee.com/ant-design-vue/ant-design-vue.git
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171 lines
5.6 KiB
Vue
171 lines
5.6 KiB
Vue
import { nextTick, defineComponent } from 'vue';
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import PropTypes from '../_util/vue-types';
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import { alignElement, alignPoint } from 'dom-align';
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import addEventListener from '../vc-util/Dom/addEventListener';
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import { isWindow, buffer, isSamePoint, restoreFocus, monitorResize } from './util';
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import { cloneElement } from '../_util/vnode';
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import clonedeep from 'lodash-es/cloneDeep';
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import { getSlot, findDOMNode } from '../_util/props-util';
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import useBuffer from './hooks/useBuffer';
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import isVisible from '../vc-util/Dom/isVisible';
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function getElement(func) {
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if (typeof func !== 'function' || !func) return null;
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return func();
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}
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function getPoint(point) {
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if (typeof point !== 'object' || !point) return null;
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return point;
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}
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export default defineComponent({
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props: {
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childrenProps: PropTypes.object,
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align: PropTypes.object.isRequired,
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target: PropTypes.oneOfType([PropTypes.func, PropTypes.object]).def(() => window),
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monitorBufferTime: PropTypes.number.def(50),
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monitorWindowResize: PropTypes.looseBool.def(false),
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disabled: PropTypes.looseBool.def(false),
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},
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data() {
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this.aligned = false;
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this.sourceResizeMonitor = { cancel: () => {} };
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this.resizeMonitor = { cancel: () => {} };
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this.prevProps = { ...this.$props };
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const [forceAlign, cancelForceAlign] = useBuffer(this.goAlign, 0);
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return {
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forceAlign,
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cancelForceAlign,
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};
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},
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mounted() {
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nextTick(() => {
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const props = this.$props;
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// if parent ref not attached .... use document.getElementById
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!this.aligned && this.forceAlign();
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if (!props.disabled && props.monitorWindowResize) {
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this.startMonitorWindowResize();
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}
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this.startMonitorElementResize();
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});
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},
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updated() {
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nextTick(() => {
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const prevProps = this.prevProps;
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const props = this.$props;
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let reAlign = false;
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if (!props.disabled) {
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if (prevProps.disabled) {
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reAlign = true;
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} else {
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const lastElement = getElement(prevProps.target);
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const currentElement = getElement(props.target);
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const lastPoint = getPoint(prevProps.target);
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const currentPoint = getPoint(props.target);
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if (isWindow(lastElement) && isWindow(currentElement)) {
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// Skip if is window
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reAlign = false;
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} else if (
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(lastElement && !currentElement && currentPoint) || // Change from element to point
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(lastPoint && currentPoint && currentElement) // Change from point to element
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) {
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reAlign = true;
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}
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}
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}
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if (reAlign) {
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this.forceAlign();
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} else {
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this.startMonitorElementResize();
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}
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if (props.monitorWindowResize && !props.disabled) {
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this.startMonitorWindowResize();
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} else {
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this.stopMonitorWindowResize();
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}
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this.prevProps = { ...this.$props, align: clonedeep(this.$props.align) };
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});
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},
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beforeUnmount() {
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this.stopMonitorWindowResize();
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this.resizeMonitor?.cancel();
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this.sourceResizeMonitor?.cancel();
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this.cancelForceAlign();
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},
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methods: {
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startMonitorElementResize() {
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const prevProps = this.prevProps;
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const props = this.$props;
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const lastElement = getElement(prevProps.target);
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const currentElement = getElement(props.target);
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const lastPoint = getPoint(prevProps.target);
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const currentPoint = getPoint(props.target);
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const source = findDOMNode(this);
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const { sourceResizeMonitor, resizeMonitor } = this;
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if (source !== sourceResizeMonitor.element) {
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sourceResizeMonitor?.cancel();
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sourceResizeMonitor.element = source;
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sourceResizeMonitor.cancel = monitorResize(source, this.forceAlign);
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}
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if (lastElement !== currentElement || !isSamePoint(lastPoint, currentPoint)) {
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//this.forceAlign();
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// Add resize observer
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if (resizeMonitor.element !== currentElement) {
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resizeMonitor?.cancel();
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resizeMonitor.element = currentElement;
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resizeMonitor.cancel = monitorResize(currentElement, this.forceAlign);
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}
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}
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},
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startMonitorWindowResize() {
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if (!this.resizeHandler) {
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this.bufferMonitor = buffer(this.forceAlign, this.$props.monitorBufferTime);
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this.resizeHandler = addEventListener(window, 'resize', this.bufferMonitor);
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}
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},
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stopMonitorWindowResize() {
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if (this.resizeHandler) {
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this.bufferMonitor.clear();
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this.resizeHandler.remove();
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this.resizeHandler = null;
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}
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},
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goAlign() {
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const { disabled, target, align } = this.$props;
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if (!disabled && target) {
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const source = findDOMNode(this);
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let result;
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const element = getElement(target);
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const point = getPoint(target);
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// IE lose focus after element realign
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// We should record activeElement and restore later
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const activeElement = document.activeElement;
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if (element && isVisible(element)) {
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result = alignElement(source, element, align);
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} else if (point) {
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result = alignPoint(source, point, align);
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}
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restoreFocus(activeElement, source);
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this.aligned = true;
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this.$attrs.onAlign && result && this.$attrs.onAlign(source, result);
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return true;
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}
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return false;
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},
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},
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render() {
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const { childrenProps } = this.$props;
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const child = getSlot(this);
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if (child && childrenProps) {
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return cloneElement(child[0], childrenProps);
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}
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return child && child[0];
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},
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});
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