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common.js
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'use strict';
// Common code shared between index.html, app.html, embed.html etc.
// This should be loaded after phosphorus.dist.js
/** @type {any} */
var P;
// @ts-ignore
var Common = (function() {
var DEFAULT_OPTIONS = P.player.Player.DEFAULT_OPTIONS;
// "truthy" values
var TRUE = ['true', 'yes', 'on', '1'];
// "falsey" values
var FALSE = ['false', 'no', 'off', '0'];
function parseSearch(handler) {
location.search.substr(1).split('&').forEach(function(p) {
var parts = p.split('=');
if (parts.length < 1) {
return;
}
handler(parts[0], parts[1] || '');
});
}
var playerOptions = {};
var projectId = null;
parseSearch(function(key, value) {
function setPlayerOption(name, value) {
// Check that this option exists
if (!DEFAULT_OPTIONS.hasOwnProperty(name)) {
throw new Error('Unknown option: ' + name);
}
// Get the default value and type
var defaultValue = DEFAULT_OPTIONS[name];
var expectedType = typeof defaultValue;
// Convert the input value to the correct type
if (expectedType === 'number') {
value = +value;
if (Number.isNaN(value)) {
console.warn('Value for ' + name + ' is an invalid number, skipping.');
return;
}
}
if (expectedType === 'boolean') {
value = value.toLowerCase();
if (TRUE.indexOf(value) > -1) {
value = true;
} else if (FALSE.indexOf(value) > -1) {
value = false;
} else {
console.warn('Value for ' + name + ' is an invalid boolean(-like), skipping.');
return;
}
}
playerOptions[name] = value;
}
function setPlayerFlag(name, value) {
setPlayerOption(name, value || 'true');
}
function setPlayerEnum(name, value, values) {
if (values.indexOf(value) > -1) {
setPlayerOption(name, value);
} else {
console.warn(value, 'is not one of', values.join(', '));
}
}
switch (key) {
// Player options
case 'fps':
setPlayerOption('fps', value);
break;
case 'username':
setPlayerOption('username', value);
break;
case 'turbo':
setPlayerFlag('turbo', value);
break;
case 'imageSmoothing':
setPlayerFlag('imageSmoothing', value);
break;
case 'fencing':
setPlayerFlag('spriteFencing', value);
break;
case 'limits':
setPlayerFlag('removeLimits', value);
break;
case 'cloud':
setPlayerEnum('cloudVariables', value, ['off', 'ws', 'localStorage']);
break;
case 'chost':
setPlayerFlag('cloudHost', value);
break;
case 'phost':
// Legacy mode was removed by Scratch. We will just ignore it.
if (value !== 'legacy') {
setPlayerFlag('projectHost', value);
}
break;
case 'chhost':
setPlayerFlag('cloudHistoryHost', value);
break;
// Project ID
case 'id':
// projectId is also read from location.hash if not found here.
projectId = value;
break;
// Feature flags
case 'webgl':
P.config.useWebGL = true;
break;
case 'debug':
P.config.debug = true;
break;
case 'video':
P.config.supportVideoSensing = true;
break;
case 'opt':
P.config.experimentalOptimizations = true;
break;
case 'svgr':
P.config.allowRasterizeVectors = false;
break;
}
});
// Check hash for project ID if not specified in search string
if (projectId === null) {
var hash = location.hash.substr(1);
if (/^\d+$/.test(hash)) {
projectId = hash;
}
}
return {
parseSearch: parseSearch,
playerOptions: playerOptions,
projectId: projectId,
};
}());