salix/front/core/components/searchbar/searchbar.js

349 lines
9.4 KiB
JavaScript

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