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import DropdownUtils from './dropdown_utils';
import FilteredSearchDropdownManager from './filtered_search_dropdown_manager';
const DATA_DROPDOWN_TRIGGER = 'data-dropdown-trigger';
export default class FilteredSearchDropdown {
constructor({ droplab, dropdown, input, filter }) {
this.droplab = droplab;
this.hookId = input && input.id;
this.input = input;
this.filter = filter;
this.dropdown = dropdown;
this.loadingTemplate = `<div class="filter-dropdown-loading">
<i class="fa fa-spinner fa-spin"></i>
</div>`;
this.bindEvents();
}
bindEvents() {
this.itemClickedWrapper = this.itemClicked.bind(this);
this.dropdown.addEventListener('click.dl', this.itemClickedWrapper);
}
unbindEvents() {
this.dropdown.removeEventListener('click.dl', this.itemClickedWrapper);
}
getCurrentHook() {
return this.droplab.hooks.filter(h => h.id === this.hookId)[0] || null;
}
itemClicked(e, getValueFunction) {
const { selected } = e.detail;
if (selected.tagName === 'LI' && selected.innerHTML) {
const dataValueSet = DropdownUtils.setDataValueIfSelected(this.filter, selected);
if (!dataValueSet) {
const value = getValueFunction(selected);
FilteredSearchDropdownManager.addWordToInput(this.filter, value, true);
}
this.resetFilters();
this.dismissDropdown();
this.dispatchInputEvent();
}
}
setAsDropdown() {
this.input.setAttribute(DATA_DROPDOWN_TRIGGER, `#${this.dropdown.id}`);
}
setOffset(offset = 0) {
if (window.innerWidth > 480) {
this.dropdown.style.left = `${offset}px`;
} else {
this.dropdown.style.left = '0px';
}
}
renderContent(forceShowList = false) {
const currentHook = this.getCurrentHook();
if (forceShowList && currentHook && currentHook.list.hidden) {
currentHook.list.show();
}
}
render(forceRenderContent = false, forceShowList = false) {
this.setAsDropdown();
const currentHook = this.getCurrentHook();
const firstTimeInitialized = currentHook === null;
if (firstTimeInitialized || forceRenderContent) {
this.renderContent(forceShowList);
} else if (currentHook.list.list.id !== this.dropdown.id) {
this.renderContent(forceShowList);
}
}
dismissDropdown() {
// Focusing on the input will dismiss dropdown
// (default droplab functionality)
this.input.focus();
}
dispatchInputEvent() {
// Propogate input change to FilteredSearchDropdownManager
// so that it can determine which dropdowns to open
this.input.dispatchEvent(
new CustomEvent('input', {
bubbles: true,
cancelable: true,
}),
);
}
dispatchFormSubmitEvent() {
// dispatchEvent() is necessary as form.submit() does not
// trigger event handlers
this.input.form.dispatchEvent(new Event('submit'));
}
hideDropdown() {
const currentHook = this.getCurrentHook();
if (currentHook) {
currentHook.list.hide();
}
}
resetFilters() {
const hook = this.getCurrentHook();
if (hook) {
const data = hook.list.data || [];
if (!data) return;
const results = data.map(o => {
const updated = o;
updated.droplab_hidden = false;
return updated;
});
hook.list.render(results);
}
}
}
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