70 строки
2.4 KiB
JavaScript
70 строки
2.4 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const EXPORTED_SYMBOLS = ['movieTransform'];
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function MovieTransform() {
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/*
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Class that normalizes movie API responses into a data object containing all
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required keys. Used by the Recommendation to generate a uniform data object
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to pass into the RecommendationRow for rendering into the XUL DOM.
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This class is stateless, so a singleton instance is created and exported.
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*/
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}
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MovieTransform.prototype = {
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transform: function(data) {
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if (!this.isValid(data)) {
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return;
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}
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// NOTE: using the full keys repeatedly to aid grepping.
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const result = {
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type: 'movie',
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title: `${data.enhancements.movie.title} (${data.enhancements.movie.year})`,
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url: data.enhancements.movie.imdb_url,
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favicon: {
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url: data.enhancements.favicon.url,
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color: data.enhancements.favicon.color
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},
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// The movie poster's dimensions are missing (recommendation-server
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// issue #144). For now, the IMDB ratio seems to be 3:2, so just roll with that.
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keyImage: {
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url: data.enhancements.movie.poster,
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height: 96,
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width: 64
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},
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details: this.generateDetails(data),
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description: data.enhancements.movie.plot
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};
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return result;
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},
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generateDetails: function(data) {
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let items = [
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'IMDB Rating ' + data.enhancements.movie.rating.imdb.raw,
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data.enhancements.movie.runtime,
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data.enhancements.movie.genre];
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return items.join(' - ');
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},
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isValid: function(data) {
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let valid = false;
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// Just try to access every required key. If one is missing, the thrown Error
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// will tell us it's an invalid data object. For optional keys, just check
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// that the parent key exists (if no other check touches the parent).
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try {
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valid = data.enhancements.movie.title &&
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data.enhancements.movie.imdb_url &&
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data.enhancements.favicon.url &&
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data.enhancements.favicon.color &&
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data.enhancements.movie.poster &&
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data.enhancements.movie.rating.imdb &&
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data.enhancements.movie.runtime &&
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data.enhancements.movie.genre;
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} catch (ex) {}
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return valid;
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}
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};
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const movieTransform = new MovieTransform();
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