89 lines
2.4 KiB
JavaScript
89 lines
2.4 KiB
JavaScript
import { safeJson } from './utils/fetch.mjs';
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import STATUS from './status.mjs';
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import WeatherDisplay from './weatherdisplay.mjs';
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import { registerDisplay } from './navigation.mjs';
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import { debugFlag } from './utils/debug.mjs';
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const STORIES_PER_PAGE = 2;
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const PAGE_DURATION_MS = 9000;
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class LinuxNews extends WeatherDisplay {
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constructor(navId, elemId) {
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super(navId, elemId, 'Linux News: LWN', true);
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this.timing.baseDelay = PAGE_DURATION_MS;
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}
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async getData(weatherParameters, refresh) {
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if (!super.getData(weatherParameters, refresh)) return;
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try {
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const response = await safeJson('/api/linux-news', {
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retryCount: 0,
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});
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if (!response?.success || !response.stories?.length) {
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if (debugFlag('linuxnews')) {
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console.log('Linux News: no stories available');
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}
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this.setStatus(STATUS.noData);
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return;
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}
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this.data = response.stories.slice(0, 8);
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this.setStatus(STATUS.loaded);
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} catch (error) {
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if (debugFlag('linuxnews')) {
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console.log('Linux News: error fetching data:', error.message);
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}
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this.setStatus(STATUS.noData);
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}
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}
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async drawCanvas() {
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super.drawCanvas();
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const outputElem = this.elem.querySelector('.news-output');
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const container = this.elem.querySelector('.container');
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const pages = [];
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for (let i = 0; i < this.data.length; i += STORIES_PER_PAGE) {
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pages.push(this.data.slice(i, i + STORIES_PER_PAGE));
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}
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outputElem.innerHTML = '';
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pages.forEach((pageStories) => {
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const pageElem = document.createElement('div');
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pageElem.className = 'news-page';
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pageStories.forEach((story) => {
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const storyElem = document.createElement('div');
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storyElem.className = 'story';
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const headlineElem = document.createElement('div');
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headlineElem.className = 'headline';
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headlineElem.textContent = story.headline;
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const blurbElem = document.createElement('div');
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blurbElem.className = 'blurb';
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blurbElem.textContent = story.blurb;
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storyElem.append(headlineElem, blurbElem);
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pageElem.appendChild(storyElem);
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});
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outputElem.appendChild(pageElem);
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});
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this.pageHeight = container.offsetHeight;
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this.timing.totalScreens = Math.max(1, pages.length);
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this.timing.delay = new Array(this.timing.totalScreens).fill(1);
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this.calcNavTiming();
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const top = -this.screenIndex * this.pageHeight;
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outputElem.style.top = `${top}px`;
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this.finishDraw();
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}
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}
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registerDisplay(new LinuxNews(14, 'linux-news'));
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