86 lines
2.5 KiB
JavaScript
86 lines
2.5 KiB
JavaScript
export class Highlighter {
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constructor(layout, clockElement, mode) {
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this._layout = layout;
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this._clockElement = clockElement;
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this._mode = mode === 'seconds' ? 'seconds' : 'time';
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this._time = null;
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}
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display(time) {
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if (this._mode === 'seconds') {
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const second = this._getSecond(time);
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if (this._getCurrentSecond() !== second) {
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this._clearAll();
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this._highlight(`second${second}`);
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}
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} else {
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const minute = this._getMinute(time);
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if (this._getCurrentMinute() !== minute) {
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const dotMinute = this._getDotMinute(time);
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const hour = this._getHour(time);
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this._clearAll();
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this._highlight('on');
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for (let i = 1; i <= dotMinute; i++) {
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this._highlight(`dot${i}`);
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}
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this._highlight(`minute${minute}`);
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this._highlight(`hour${hour}`);
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}
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}
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this._time = time;
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}
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_getSecond(time) {
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if (typeof this._layout.getSeconds === 'function') {
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return this._layout.getSeconds(time);
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}
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return time.getSeconds();
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}
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_getDotMinute(time) {
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if (typeof this._layout.getDotMinute === 'function') {
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return this._layout.getDotMinute(time);
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}
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return time.getMinutes() % 5;
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}
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_getMinute(time) {
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if (typeof this._layout.getMinutes === 'function') {
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return this._layout.getMinutes(time);
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}
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return time.getMinutes();
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}
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_getHour(time) {
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if (typeof this._layout.getHours === 'function') {
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return this._layout.getHours(time);
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}
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const hour = time.getHours();
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if (time.getMinutes() >= 25) {
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return (hour + 1) % 24;
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}
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return hour;
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}
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_clearAll() {
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const items = this._clockElement.getElementsByClassName('item');
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for (let i = 0; i < items.length; i++) {
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items.item(i).classList.remove('active');
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}
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}
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_highlight(itemClass) {
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const items = this._clockElement.getElementsByClassName(`item ${itemClass}`);
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for (let i = 0; i < items.length; i++) {
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items.item(i).classList.add('active');
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}
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}
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_getCurrentSecond() {
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return !!this._time && this._time.getSeconds() || -1;
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}
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_getCurrentMinute() {
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return !!this._time && this._time.getMinutes() || -1;
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}
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}
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