@nativescript/core
Version:
A JavaScript library providing an easy to use api for interacting with iOS and Android platform APIs.
67 lines • 2.82 kB
JavaScript
import { Screen, Device } from '../platform';
import { findMatch, stripQualifiers } from './qualifier-matcher';
import { Trace } from '../trace';
import { initAppForModuleResolver, getResolveInstance, _setResolver } from './helpers';
export class ModuleNameResolver {
constructor(context, moduleListProvider = global.getRegisteredModules) {
this.context = context;
this.moduleListProvider = moduleListProvider;
this._cache = {};
initAppForModuleResolver();
}
resolveModuleName(path, ext) {
const key = path + ext;
let result = this._cache[key];
if (result === undefined) {
result = this.resolveModuleNameImpl(path, ext);
this._cache[key] = result;
}
if (Trace.isEnabled()) {
Trace.write(`path: '${path}' with ext: '${ext}' resolved: '${result}'`, Trace.categories.ModuleNameResolver);
}
return result;
}
clearCache() {
this._cache = {};
}
resolveModuleNameImpl(path, ext) {
let result = null;
ext = ext ? '.' + ext : '';
// This call will return a clean path without qualifiers
path = stripQualifiers(path);
const candidates = this.getCandidates(path, ext);
result = findMatch(path, ext, candidates, this.context);
return result;
}
getCandidates(path, ext) {
const candidates = this.moduleListProvider().filter((moduleName) => moduleName.startsWith(path) && (!ext || moduleName.endsWith(ext)));
return candidates;
}
}
export function resolveModuleName(path, ext) {
if (global.__snapshot) {
return resolveModuleSnapshot(path, ext);
}
if (!getResolveInstance()) {
_setResolver(new ModuleNameResolver({
width: Screen.mainScreen.widthDIPs,
height: Screen.mainScreen.heightDIPs,
os: Device.os,
deviceType: Device.deviceType,
}));
}
return getResolveInstance().resolveModuleName(path, ext);
}
function resolveModuleSnapshot(path, ext) {
Trace.write(`Resolving module in SNAPSHOT context - path: '${path}' with ext: '${ext}'`, Trace.categories.ModuleNameResolver);
// Platform module when in snapshot. So resolve modules with default android phone.
// NB: The only module name that should ever be resolved while in snapshot is app.css, because it is
// applied explicitly in the snapshot by [NativeScriptSnapshotPlugin](https://github.com/NativeScript/nativescript-dev-webpack/blob/48b26f412fd70c19dc0b9c7763e08e9505a0ae11/plugins/NativeScriptSnapshotPlugin/index.js#L48-L56)
return new ModuleNameResolver({
width: 400,
height: 800,
os: 'Android',
deviceType: 'Phone',
}).resolveModuleName(path, ext);
}
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