183 lines
3.9 KiB
Vue
183 lines
3.9 KiB
Vue
<template>
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<form class="ui-form" @submit.prevent="onSubmit" @change="onChange">
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<slot v-bind="slotProps" />
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</form>
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</template>
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<script>
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import Overlay from 'zero/services/overlay.js'
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import { isArray as _isArray, filter as _filter, groupBy as _groupBy } from 'underscore'
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export default {
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name: 'uiForm',
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props: {
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submit: {
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type: Function,
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default: () => { }
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},
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mapState: {
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type: Boolean,
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default: true
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},
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errorComponents: {
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type: Array,
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default: () => [ 'uiError' ]
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}
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},
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data: () => ({
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dirty: false,
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state: 'default',
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errors: [],
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slotProps: {
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state: null
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}
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}),
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watch: {
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state(val)
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{
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this.slotProps.state = val;
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}
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},
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created()
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{
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this.slotProps.state = this.state;
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},
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methods: {
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// shows a confirmation dialog for dirty forms when the route tries to change
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// it only works when this method is attached to the route component
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beforeRouteLeave(to, from, next)
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{
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if (this.dirty)
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{
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Overlay.confirm({
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title: 'You have unsaved changes',
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text: 'Are you sure you want to navigate away from this page?',
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confirmLabel: '@unsavedchanges.confirm',
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closeLabel: '@unsavedchanges.close'
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}).then(
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() => next(false),
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() => next()
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);
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}
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else
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{
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next()
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}
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},
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// handles a promise
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handle(promise)
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{
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this.setState('loading');
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return new Promise((resolve, reject) =>
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{
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promise
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.then(
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response =>
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{
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this.setState('success');
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this.setDirty(false);
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resolve(response);
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},
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errors =>
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{
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this.setState('error');
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this.setErrors(errors);
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reject(errors);
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}
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)
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.catch(exception =>
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{
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this.setState('error');
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console.info('catch', exception);
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// TODO should we throw here, probably show an error overlay
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throw exception;
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});
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});
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},
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// submits the form
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onSubmit(e)
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{
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this.submit(this, e);
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},
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// set the form to dirty when one of the fields changes
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onChange(e)
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{
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this.dirty = true;
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},
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// set dirty status
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setDirty(dirty)
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{
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this.dirty = dirty;
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},
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// set state for this component and all child components which attached it's state from the slot props
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setState(state)
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{
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this.state = state;
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},
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// tries to find matching fields for the given errors and displays them
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setErrors(errors)
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{
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if (typeof errors === 'undefined')
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{
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this.errors = [];
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}
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else if (!_isArray(errors))
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{
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this.errors = [errors];
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}
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else
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{
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this.errors = errors;
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}
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let errorGroups = _groupBy(this.errors, 'field');
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// find components which can output errors
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let traverseChildren = parent =>
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{
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parent.$children.forEach(component =>
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{
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const isErrorComponent = this.errorComponents.indexOf(component.$options.name) > -1;
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const field = component.field;
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if (isErrorComponent && field)
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{
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let errorGroup = errorGroups[field];
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if (errorGroup)
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{
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component.set(errorGroup);
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}
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}
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else
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{
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traverseChildren(component);
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}
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});
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};
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traverseChildren(this);
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}
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}
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}
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</script> |