354 lines
9.7 KiB
JavaScript
354 lines
9.7 KiB
JavaScript
import ngModule from '../../module';
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import Component from '../../lib/component';
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import {buildFilter} from 'vn-loopback/util/filter';
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import focus from '../../lib/focus';
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import './style.scss';
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/**
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* An input specialized to perform searches, it allows to use a panel
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* for advanced searches when the panel property is defined.
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* When model and exprBuilder properties are used, the model is updated
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* automatically with an and-filter exprexion in which each operand is built
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* by calling the exprBuilder function for each non-null parameter.
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*
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* @property {Object} filter A key-value object with filter parameters
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* @property {SearchPanel} panel The panel used for advanced searches
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* @property {Function} onSearch Function to call when search is submited
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* @property {CrudModel} model The model used for searching
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* @property {Function} exprBuilder If defined, is used to build each non-null param expresion
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*/
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export default class Searchbar extends Component {
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constructor($element, $) {
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super($element, $);
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this.searchState = '.';
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this.placeholder = 'Search';
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this.autoState = true;
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this.deregisterCallback = this.$transitions.onSuccess(
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{}, transition => this.onStateChange(transition));
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}
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$postLink() {
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if (this.autoState) {
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if (!this.baseState) {
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let stateParts = this.$state.current.name.split('.');
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this.baseState = stateParts[0];
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}
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this.searchState = `${this.baseState}.index`;
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this.placeholder = this.$t('Search by', {
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module: this.baseState
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});
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}
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this.fetchStateFilter(this.autoLoad);
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}
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$onDestroy() {
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this.deregisterCallback();
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}
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get filter() {
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return this._filter;
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}
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set filter(value) {
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this._filter = value;
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this.toBar(value);
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}
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get shownFilter() {
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return this.filter != null
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? this.filter
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: this.suggestedFilter;
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}
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get searchString() {
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return this._searchString;
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}
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set searchString(value) {
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this._searchString = value;
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if (value == null) this.params = [];
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}
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onStateChange(transition) {
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let ignoreHandler =
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!this.element.parentNode
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|| transition == this.transition;
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if (ignoreHandler) return;
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this.fetchStateFilter();
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}
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fetchStateFilter(autoLoad) {
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let filter = this.filter ? this.filter : null;
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if (this.$state.is(this.searchState)) {
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if (this.$params.q) {
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try {
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filter = JSON.parse(this.$params.q);
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} catch (e) {
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console.error(e);
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}
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}
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if (!filter && autoLoad)
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filter = {};
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}
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this.doSearch(filter, 'state');
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}
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openPanel(event) {
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if (event.defaultPrevented) return;
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this.$.popover.show(this.element);
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this.$panelScope = this.$.$new();
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this.panelEl = this.$compile(`<${this.panel}/>`)(this.$panelScope)[0];
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let panel = this.panelEl.$ctrl;
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if (this.shownFilter)
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panel.filter = JSON.parse(JSON.stringify(this.shownFilter));
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panel.onSubmit = filter => this.onPanelSubmit(filter.$filter);
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this.$.popover.content.appendChild(this.panelEl);
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}
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onPopoverClose() {
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this.$panelScope.$destroy();
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this.$panelScope = null;
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this.panelEl.remove();
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this.panelEl = null;
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}
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onPanelSubmit(filter) {
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this.$.popover.hide();
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filter = compact(filter);
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filter = filter != null ? filter : {};
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this.doSearch(filter, 'panel');
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}
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onSubmit() {
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this.doSearch(this.fromBar(), 'bar');
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}
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removeParam(index) {
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this.params.splice(index, 1);
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this.doSearch(this.fromBar(), 'bar');
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}
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fromBar() {
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let filter = {};
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if (this.searchString)
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filter.search = this.searchString;
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if (this.params) {
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for (let param of this.params)
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filter[param.key] = param.value;
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}
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return filter;
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}
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toBar(filter) {
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this.params = [];
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this.searchString = filter && filter.search;
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if (!filter) return;
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let keys = Object.keys(filter);
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keys.forEach(key => {
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if (key == 'search') return;
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let value = filter[key];
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let chip;
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if (typeof value == 'string'
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&& /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$/.test(value))
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value = new Date(value);
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switch (typeof value) {
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case 'boolean':
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chip = `${value ? '' : 'not '}${key}`;
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break;
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case 'number':
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case 'string':
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chip = `${key}: ${value}`;
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break;
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default:
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if (value instanceof Date) {
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let format = 'yyyy-MM-dd';
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if (value.getHours() || value.getMinutes())
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format += ' HH:mm';
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chip = `${key}: ${this.$filter('date')(value, format)}`;
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} else
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chip = key;
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}
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this.params.push({chip, key, value});
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});
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}
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doSearch(filter, source) {
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if (filter === this.filter && source != 'state') return;
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let promise = this.onSearch({$params: filter});
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promise = promise || this.$q.resolve();
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promise.then(data => this.onFilter(filter, source, data));
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}
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onFilter(filter, source, data) {
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let state;
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let params;
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let opts;
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if (filter) {
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let isOneResult = this.autoState
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&& source != 'state'
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&& !angular.equals(filter, {})
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&& data
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&& data.length == 1;
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if (isOneResult) {
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let baseDepth = this.baseState.split('.').length;
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let stateParts = this.$state.current.name
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.split('.')
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.slice(baseDepth);
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let subState = stateParts[0];
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switch (subState) {
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case 'card':
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subState += `.${stateParts[1]}`;
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if (stateParts.length >= 3)
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subState += '.index';
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break;
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default:
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subState = 'card.summary';
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}
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if (this.stateParams)
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params = this.stateParams({$row: data[0]});
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state = `${this.baseState}.${subState}`;
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filter = null;
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} else {
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state = this.searchState;
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if (filter)
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params = {q: JSON.stringify(filter)};
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if (this.$state.is(state))
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opts = {location: 'replace'};
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}
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}
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this.filter = filter;
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if (!filter && this.model)
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this.model.clear();
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if (source != 'state')
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this.transition = this.$state.go(state, params, opts).transition;
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if (source != 'bar')
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focus(this.element.querySelector('vn-textfield input'));
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}
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// Default search handlers
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stateParams(params) {
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return {id: params.$row.id};
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}
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onSearch(args) {
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if (!this.model) return;
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let filter = args.$params;
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if (filter === null) {
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this.model.clear();
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return;
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}
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let where = null;
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let params = null;
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if (this.exprBuilder) {
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where = buildFilter(filter,
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(param, value) => this.exprBuilder({param, value}));
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} else {
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params = Object.assign({}, filter);
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if (this.fetchParams)
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params = this.fetchParams({$params: params});
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}
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return this.model.applyFilter(where ? {where} : null, params)
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.then(() => this.model.data);
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}
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}
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ngModule.vnComponent('vnSearchbar', {
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controller: Searchbar,
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template: require('./searchbar.html'),
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bindings: {
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filter: '<?',
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suggestedFilter: '<?',
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panel: '@',
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info: '@?',
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onSearch: '&?',
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baseState: '@?',
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autoState: '<?',
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stateParams: '&?',
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model: '<?',
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exprBuilder: '&?',
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fetchParams: '&?',
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placeholder: '@?'
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}
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});
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class AutoSearch {
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constructor(vnSlotService) {
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this.vnSlotService = vnSlotService;
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}
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$postLink() {
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let searchbar = this.vnSlotService.getContent('topbar');
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if (searchbar && searchbar.$ctrl instanceof Searchbar)
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this.model = searchbar.$ctrl.model;
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}
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}
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AutoSearch.$inject = ['vnSlotService'];
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ngModule.vnComponent('vnAutoSearch', {
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controller: AutoSearch,
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bindings: {
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model: '=?'
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}
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});
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/**
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* Removes null, undefined, empty objects and empty arrays from an object.
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* It also applies to nested objects/arrays.
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*
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* @param {*} obj The value to format
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* @return {*} The formatted value
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*/
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function compact(obj) {
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if (obj == null)
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return undefined;
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else if (Array.isArray(obj)) {
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for (let i = obj.length - 1; i >= 0; i--) {
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if (compact(obj[i]) === undefined)
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obj.splice(i, 1);
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}
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if (obj.length == 0)
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return undefined;
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} else if (typeof obj == 'object' && obj.constructor == Object) {
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let keys = Object.keys(obj);
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for (let key of keys) {
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if (key.charAt(0) == '$' || compact(obj[key]) === undefined)
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delete obj[key];
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}
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if (Object.keys(obj).length == 0)
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return undefined;
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}
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return obj;
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}
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