angular2
Version:
Angular 2 - a web framework for modern web apps
90 lines • 13.7 kB
JavaScript
import { AsyncRoute, AuxRoute, Route, Redirect } from './route_config_decorator';
import { isType } from 'angular2/src/facade/lang';
import { BaseException } from 'angular2/src/facade/exceptions';
/**
* Given a JS Object that represents a route config, returns a corresponding Route, AsyncRoute,
* AuxRoute or Redirect object.
*
* Also wraps an AsyncRoute's loader function to add the loaded component's route config to the
* `RouteRegistry`.
*/
export function normalizeRouteConfig(config, registry) {
if (config instanceof AsyncRoute) {
var wrappedLoader = wrapLoaderToReconfigureRegistry(config.loader, registry);
return new AsyncRoute({
path: config.path,
loader: wrappedLoader,
name: config.name,
data: config.data,
useAsDefault: config.useAsDefault
});
}
if (config instanceof Route || config instanceof Redirect || config instanceof AuxRoute) {
return config;
}
if ((+!!config.component) + (+!!config.redirectTo) + (+!!config.loader) != 1) {
throw new BaseException(`Route config should contain exactly one "component", "loader", or "redirectTo" property.`);
}
if (config.as && config.name) {
throw new BaseException(`Route config should contain exactly one "as" or "name" property.`);
}
if (config.as) {
config.name = config.as;
}
if (config.loader) {
var wrappedLoader = wrapLoaderToReconfigureRegistry(config.loader, registry);
return new AsyncRoute({
path: config.path,
loader: wrappedLoader,
name: config.name,
useAsDefault: config.useAsDefault
});
}
if (config.aux) {
return new AuxRoute({ path: config.aux, component: config.component, name: config.name });
}
if (config.component) {
if (typeof config.component == 'object') {
let componentDefinitionObject = config.component;
if (componentDefinitionObject.type == 'constructor') {
return new Route({
path: config.path,
component: componentDefinitionObject.constructor,
name: config.name,
data: config.data,
useAsDefault: config.useAsDefault
});
}
else if (componentDefinitionObject.type == 'loader') {
return new AsyncRoute({
path: config.path,
loader: componentDefinitionObject.loader,
name: config.name,
useAsDefault: config.useAsDefault
});
}
else {
throw new BaseException(`Invalid component type "${componentDefinitionObject.type}". Valid types are "constructor" and "loader".`);
}
}
return new Route(config);
}
if (config.redirectTo) {
return new Redirect({ path: config.path, redirectTo: config.redirectTo });
}
return config;
}
function wrapLoaderToReconfigureRegistry(loader, registry) {
return () => {
return loader().then((componentType) => {
registry.configFromComponent(componentType);
return componentType;
});
};
}
export function assertComponentExists(component, path) {
if (!isType(component)) {
throw new BaseException(`Component for route "${path}" is not defined, or is not a class.`);
}
}
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{AsyncRoute, AuxRoute, Route, Redirect, RouteDefinition} from './route_config_decorator';\nimport {ComponentDefinition} from './route_definition';\nimport {isType, Type} from 'angular2/src/facade/lang';\nimport {BaseException, WrappedException} from 'angular2/src/facade/exceptions';\nimport {RouteRegistry} from './route_registry';\n\n\n/**\n * Given a JS Object that represents a route config, returns a corresponding Route, AsyncRoute,\n * AuxRoute or Redirect object.\n *\n * Also wraps an AsyncRoute's loader function to add the loaded component's route config to the\n * `RouteRegistry`.\n */\nexport function normalizeRouteConfig(config: RouteDefinition,\n                                     registry: RouteRegistry): RouteDefinition {\n  if (config instanceof AsyncRoute) {\n    var wrappedLoader = wrapLoaderToReconfigureRegistry(config.loader, registry);\n    return new AsyncRoute({\n      path: config.path,\n      loader: wrappedLoader,\n      name: config.name,\n      data: config.data,\n      useAsDefault: config.useAsDefault\n    });\n  }\n  if (config instanceof Route || config instanceof Redirect || config instanceof AuxRoute) {\n    return <RouteDefinition>config;\n  }\n\n  if ((+!!config.component) + (+!!config.redirectTo) + (+!!config.loader) != 1) {\n    throw new BaseException(\n        `Route config should contain exactly one \"component\", \"loader\", or \"redirectTo\" property.`);\n  }\n  if (config.as && config.name) {\n    throw new BaseException(`Route config should contain exactly one \"as\" or \"name\" property.`);\n  }\n  if (config.as) {\n    config.name = config.as;\n  }\n  if (config.loader) {\n    var wrappedLoader = wrapLoaderToReconfigureRegistry(config.loader, registry);\n    return new AsyncRoute({\n      path: config.path,\n      loader: wrappedLoader,\n      name: config.name,\n      useAsDefault: config.useAsDefault\n    });\n  }\n  if (config.aux) {\n    return new AuxRoute({path: config.aux, component:<Type>config.component, name: config.name});\n  }\n  if (config.component) {\n    if (typeof config.component == 'object') {\n      let componentDefinitionObject = <ComponentDefinition>config.component;\n      if (componentDefinitionObject.type == 'constructor') {\n        return new Route({\n          path: config.path,\n          component:<Type>componentDefinitionObject.constructor,\n          name: config.name,\n          data: config.data,\n          useAsDefault: config.useAsDefault\n        });\n      } else if (componentDefinitionObject.type == 'loader') {\n        return new AsyncRoute({\n          path: config.path,\n          loader: componentDefinitionObject.loader,\n          name: config.name,\n          useAsDefault: config.useAsDefault\n        });\n      } else {\n        throw new BaseException(\n            `Invalid component type \"${componentDefinitionObject.type}\". Valid types are \"constructor\" and \"loader\".`);\n      }\n    }\n    return new Route(<{\n      path: string;\n      component: Type;\n      name?: string;\n      data?: {[key: string]: any};\n      useAsDefault?: boolean;\n    }>config);\n  }\n\n  if (config.redirectTo) {\n    return new Redirect({path: config.path, redirectTo: config.redirectTo});\n  }\n\n  return config;\n}\n\n\nfunction wrapLoaderToReconfigureRegistry(loader: Function, registry: RouteRegistry): Function {\n  return () => {\n    return loader().then((componentType) => {\n      registry.configFromComponent(componentType);\n      return componentType;\n    });\n  };\n}\n\nexport function assertComponentExists(component: Type, path: string): void {\n  if (!isType(component)) {\n    throw new BaseException(`Component for route \"${path}\" is not defined, or is not a class.`);\n  }\n}\n"]}