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'use strict';
// Copyright (C) 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Picker used by <input type='month' />
*/
function initializeMonthPicker(config) {
global.picker = new MonthPicker(config);
main.append(global.picker);
main.style.border = '1px solid #bfbfbf';
if (global.params.isBorderTransparent) {
main.style.borderColor = 'transparent';
}
main.style.height = (MonthPicker.Height - 2) + 'px';
main.style.width = (MonthPicker.Width - 2) + 'px';
resizeWindow(MonthPicker.Width, MonthPicker.Height);
}
/**
* MonthPicker: Custom element providing a month picker implementation.
* MonthPicker contains 2 parts:
* - year list view
* - today button
*/
class MonthPicker extends HTMLElement {
constructor(config) {
super();
this.initializeFromConfig_(config);
this.yearListView_ =
new YearListView(this.minimumMonth_, this.maximumMonth_, config);
this.append(this.yearListView_.element);
this.initializeYearListView_();
this.todayButton_ = new CalendarNavigationButton();
this.append(this.todayButton_.element);
this.initializeTodayButton_();
window.addEventListener('resize', this.onWindowResize_);
this.addEventListener('keydown', this.onKeyDown_);
}
initializeFromConfig_ = (config) => {
const minimum = (typeof config.min !== 'undefined' && config.min) ?
parseDateString(config.min) :
Month.Minimum;
const maximum = (typeof config.max !== 'undefined' && config.max) ?
parseDateString(config.max) :
Month.Maximum;
this.minimumMonth_ = Month.createFromDay(minimum.firstDay());
this.maximumMonth_ = Month.createFromDay(maximum.lastDay());
};
initializeYearListView_ = () => {
this.yearListView_.setWidth(MonthPicker.YearWidth);
this.yearListView_.setHeight(MonthPicker.YearHeight);
if (global.params.isLocaleRTL) {
this.yearListView_.element.style.right = MonthPicker.YearPadding + 'px';
this.yearListView_.scrubbyScrollBar.element.style.right =
MonthPicker.YearWidth + 'px';
} else {
this.yearListView_.element.style.left = MonthPicker.YearPadding + 'px';
this.yearListView_.scrubbyScrollBar.element.style.left =
MonthPicker.YearWidth + 'px';
}
this.yearListView_.element.style.top = MonthPicker.YearPadding + 'px';
let yearForInitialScroll = this.selectedMonth ?
this.selectedMonth.year - 1 :
Month.createFromToday().year - 1;
this.yearListView_.scrollToRow(yearForInitialScroll, false);
this.yearListView_.selectWithoutAnimating(yearForInitialScroll);
this.yearListView_.on(
YearListView.EventTypeYearListViewDidSelectMonth,
this.onYearListViewDidSelectMonth_);
};
onYearListViewDidSelectMonth_ = (sender, month) => {
const selectedValue = month.toString();
window.pagePopupController.setValueAndClosePopup(0, selectedValue);
};
initializeTodayButton_ = () => {
this.todayButton_.element.textContent = global.params.todayLabel;
this.todayButton_.element.setAttribute(
'aria-label', global.params.todayLabel);
this.todayButton_.element.classList.add(MonthPicker.ClassNameTodayButton);
const monthContainingToday = Month.createFromToday();
this.todayButton_.setDisabled(
!this.yearListView_.isValid(monthContainingToday));
this.todayButton_.on(
CalendarNavigationButton.EventTypeButtonClick,
this.onTodayButtonClick_);
};
onTodayButtonClick_ = (sender) => {
const selectedValue = Month.createFromToday().toString();
window.pagePopupController.setValueAndClosePopup(0, selectedValue);
};
onKeyDown_ = (event) => {
switch (event.key) {
case 'Enter':
// Don't do anything here if user has hit Enter on 'This month'
// button. We'll handle that in this.onTodayButtonClick_.
if (!event.target.matches('.calendar-navigation-button')) {
if (this.selectedMonth) {
window.pagePopupController.setValueAndClosePopup(
0, this.selectedMonth.toString());
} else {
window.pagePopupController.closePopup();
}
}
break;
case 'Escape':
if (!this.selectedMonth ||
(this.selectedMonth.equals(this.initialSelectedMonth))) {
window.pagePopupController.closePopup();
} else {
this.resetToInitialValue_();
window.pagePopupController.setValue(
this.hadValidValueWhenOpened ?
this.initialSelectedMonth.toString() :
'');
}
break;
case 'ArrowUp':
case 'ArrowDown':
case 'ArrowLeft':
case 'ArrowRight':
case 'PageUp':
case 'PageDown':
case 'Home':
case 'End':
if (this.selectedMonth) {
window.pagePopupController.setValue(this.selectedMonth.toString());
}
break;
}
};
resetToInitialValue_ = () => {
this.yearListView_.setSelectedMonthAndUpdateView(this.initialSelectedMonth);
};
onWindowResize_ = (event) => {
window.removeEventListener('resize', this.onWindowResize_);
this.yearListView_.element.focus();
};
get selectedMonth() {
return this.yearListView_._selectedMonth;
};
get initialSelectedMonth() {
return this.yearListView_._initialSelectedMonth;
};
get hadValidValueWhenOpened() {
return this.yearListView_._hadValidValueWhenOpened;
};
}
MonthPicker.Width = 232;
MonthPicker.YearWidth = 194;
MonthPicker.YearHeight = 128;
MonthPicker.YearPadding = 12;
MonthPicker.Height = 182;
MonthPicker.ClassNameTodayButton = 'today-button-refresh';
window.customElements.define('month-picker', MonthPicker);
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