@codebakery/origami/esm5/styles/src/modules/import-style-module.js

Angular + Polymer

/**
 * The <dom-module> constructor.
 */
var cachedDomModule;
/**
 * Style module CSS text cached by id.
 */
var CACHED_STYLE_MODULES = new Map();
/**
 * Imports a `<dom-module id="name">` style module by its id and returns the
 * `<style>` content for the module. Ensure that the module is imported and
 * added to the DOM before calling `importStyleModule()`.
 *
 * @deprecated Use stylesFromModule from
 *   `@polymer/polymer/lib/utils/style-gather`
 * @param styleModule the named id of the style module to import
 * @returns the style module's CSS text, or an empty string if the module does
 *   not exist
 */
export function importStyleModule(styleModule) {
    if (!CACHED_STYLE_MODULES.has(styleModule)) {
        if (!cachedDomModule) {
            cachedDomModule = customElements.get('dom-module');
        }
        var styleTemplate = (cachedDomModule.import(styleModule, 'template'));
        if (styleTemplate) {
            var styles = styleTemplate.content.querySelectorAll('style');
            CACHED_STYLE_MODULES.set(styleModule, Array.from(styles)
                .map(function (style) { return style.innerText; })
                .join('\n'));
        }
        else {
            CACHED_STYLE_MODULES.set(styleModule, '');
        }
    }
    return CACHED_STYLE_MODULES.get(styleModule);
}
/**
 * Resets the cache using by `importStyleModule()`, primarily used for testing.
 *
 * @deprecated clearStyleModuleCache will be removed in the next major release
 */
export function clearStyleModuleCache() {
    CACHED_STYLE_MODULES = new Map();
}
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