v2.2.4

.smartconfig.json

@@ -35,5 +35,15 @@
   },
   "@ship.zone/szci": {
     "npmGlobalTools": []
+  },
+  "@git.zone/tsbundle": {
+    "bundles": [
+      {
+        "from": "./ts/index.ts",
+        "to": "./dist_bundle/bundle.js",
+        "outputMode": "bundle",
+        "bundler": "esbuild"
+      }
+    ]
   }
 }

changelog.md

@@ -1,5 +1,44 @@
 # Changelog
 
+## 2026-03-27 - 2.2.4 - fix(build)
+migrate package config to .smartconfig and align build tooling
+
+- replace npmextra.json with .smartconfig.json and include tsbundle bundle configuration
+- update build script and package files list to use the new smartconfig-based setup
+- bump build-related dependencies and add Node types to tsconfig
+- add definite assignment assertions for element properties to satisfy TypeScript checks
+
+## 2026-03-12 - 2.2.3 - fix(repo)
+no changes to commit
+
+
+## 2026-03-11 - 2.2.2 - fix(decorators)
+patch container-responsive styles to fix stale container queries and add customElement wrapper that sets .is and warns on class/tag mismatch
+
+- containerResponsive now derives the kebab name and replaces stale '@container <derived>' occurrences inside CSSResult cssText using unsafeCSS to correct container queries produced before decorators ran
+- containerResponsive appends containerContextStyles to the component styles while preserving/processing existing static styles
+- Added a customElement decorator wrapper that assigns .is on the class, logs a warning if the class name kebab-cases to a different tag name, and delegates to Lit's customElement
+- ts/index.ts now re-exports customElement from the local decorator so the new behavior is used project-wide
+
+## 2026-03-11 - 2.2.1 - fix(dees-element)
+rename cssForCustom to cssForConstraint, remove DeesElement static cssFor* helpers, and add optional elementClass parameter to cssManager breakpoint helpers
+
+- Rename: cssManager.cssForCustom -> cssManager.cssForConstraint and DeesElement.cssForCustom -> DeesElement.cssForConstraint; underlying domtools calls updated to cssForConstraint/cssForConstraintContainer.
+- Breaking: Removed static helpers DeesElement.cssForDesktop, cssForNotebook, cssForTablet, cssForPhablet, cssForPhone — consumers must now use cssManager.cssFor*(css, this) or pass an element class to get component-scoped container rules.
+- API change: cssManager.cssForDesktop|cssForNotebook|cssForTablet|cssForPhablet|cssForPhone now accept an optional elementClass (or pass this) and a helper getContainerNameFromClass was added to generate container names.
+- Docs: readme.md updated to show new signatures, guidance to pass this for component-scoped constraints, and renaming of "custom" to "constraint".
+- Dependency: bumped @design.estate/dees-domtools from ^2.4.0 to ^2.5.1.
+
+## 2026-03-11 - 2.2.0 - feat(dees-element)
+add container-responsive APIs (containerResponsive decorator, DeesElement static cssFor* container helpers, and cssManager cssForCustom) and update docs
+
+- Exported new containerResponsive decorator (ts/decorators.containerresponsive.ts and exported from ts/index.ts)
+- Added component-level static helpers on DeesElement: cssForDesktop, cssForNotebook, cssForTablet, cssForPhablet, cssForPhone, cssForCustom
+- Added cssManager.cssForCustom to provide curried custom breakpoint helper
+- Updated readme with Container-Responsive Components section and usage examples
+- Bumped dependency @design.estate/dees-domtools from ^2.3.8 to ^2.4.0
+- Non-breaking new functionality — recommend minor version bump
+
 ## 2026-01-27 - 2.1.6 - fix(docs, deps, tests)
 update README with expanded usage docs and examples; bump devDependencies and dees-domtools; fix test import path
 

license

@@ -1,4 +1,4 @@
-Copyright (c) 2020 Lossless GmbH (hello@lossless.com)
+Copyright (c) 2020 Task Venture Capital GmbH (hello@task.vc)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@design.estate/dees-element",
-  "version": "2.1.6",
+  "version": "2.2.4",
   "private": false,
   "description": "A library for creating custom elements extending the lit element class with additional functionalities.",
   "main": "dist_ts/index.js",
@@ -10,17 +10,17 @@
   "license": "MIT",
   "scripts": {
     "test": "(tstest test/ --verbose)",
-    "build": "(tsbuild tsfolders --web --allowimplicitany && tsbundle npm)",
+    "build": "(tsbuild tsfolders --web --allowimplicitany && tsbundle)",
     "buildDocs": "tsdoc"
   },
   "devDependencies": {
-    "@git.zone/tsbuild": "^4.1.2",
+    "@git.zone/tsbuild": "^4.4.0",
-    "@git.zone/tsbundle": "^2.8.3",
+    "@git.zone/tsbundle": "^2.10.0",
-    "@git.zone/tstest": "^3.1.8",
+    "@git.zone/tstest": "^3.6.1",
-    "@types/node": "^25.0.10"
+    "@types/node": "^25.5.0"
   },
   "dependencies": {
-    "@design.estate/dees-domtools": "^2.3.8",
+    "@design.estate/dees-domtools": "^2.5.3",
     "@push.rocks/isounique": "^1.0.5",
     "@push.rocks/smartrx": "^3.0.10",
     "lit": "^3.3.2"
@@ -37,7 +37,7 @@
     "dist_ts_web/**/*",
     "assets/**/*",
     "cli.js",
-    "npmextra.json",
+    ".smartconfig.json",
     "readme.md"
   ],
   "keywords": [

readme.md

@@ -72,11 +72,12 @@ The singleton `cssManager` is the central hub for theming and responsive layout:
 |---|---|
 | `cssManager.defaultStyles` | Base styles for consistent element rendering |
 | `cssManager.bdTheme(bright, dark)` | Returns a `CSSResult` that auto-switches between bright/dark values |
-| `cssManager.cssForDesktop(css)` | Media-query wrapper for desktop breakpoints |
+| `cssManager.cssForDesktop(css, this?)` | Breakpoint for desktop; pass `this` for component-scoped |
-| `cssManager.cssForNotebook(css)` | Media-query wrapper for notebook breakpoints |
+| `cssManager.cssForNotebook(css, this?)` | Breakpoint for notebook; pass `this` for component-scoped |
-| `cssManager.cssForTablet(css)` | Media-query wrapper for tablet breakpoints |
+| `cssManager.cssForTablet(css, this?)` | Breakpoint for tablet; pass `this` for component-scoped |
-| `cssManager.cssForPhablet(css)` | Media-query wrapper for phablet breakpoints |
+| `cssManager.cssForPhablet(css, this?)` | Breakpoint for phablet; pass `this` for component-scoped |
-| `cssManager.cssForPhone(css)` | Media-query wrapper for phone breakpoints |
+| `cssManager.cssForPhone(css, this?)` | Breakpoint for phone; pass `this` for component-scoped |
+| `cssManager.cssForConstraint({ maxWidth, minWidth })` | Custom viewport-level constraint (curried) |
 | `cssManager.cssGridColumns(cols, gap)` | Generates CSS grid column widths |
 
 Example — responsive + themed styles:
@@ -106,6 +107,57 @@ class MyCard extends DeesElement {
 }
 ```
 
+### 📦 Container-Responsive Components
+
+For components that need to respond to their **own width** (not the viewport), use the `@containerResponsive()` decorator and pass `this` as the second argument to `cssManager.cssFor*`:
+
+```typescript
+import {
+  DeesElement, customElement, html, css, cssManager,
+  containerResponsive,
+} from '@design.estate/dees-element';
+
+@containerResponsive()
+@customElement('my-stats-grid')
+class MyStatsGrid extends DeesElement {
+  static styles = [
+    cssManager.defaultStyles,
+    css`.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }`,
+
+    // Component-level: when THIS element is narrower than tablet width
+    cssManager.cssForTablet(css`
+      .grid { grid-template-columns: repeat(2, 1fr); }
+    `, this),
+
+    // Viewport-level: when the browser window is phone-sized
+    cssManager.cssForPhone(css`
+      .grid { grid-template-columns: 1fr; }
+    `),
+
+    // Component-level with custom width constraint
+    this.cssForConstraint({ maxWidth: 500 })(css`
+      .grid { gap: 8px; }
+    `),
+  ];
+
+  render() {
+    return html`<div class="grid"><slot></slot></div>`;
+  }
+}
+```
+
+**How it works:**
+
+| API | Scope | Generated CSS |
+|-----|-------|---------------|
+| `cssManager.cssForPhablet(css)` | Viewport | `@media` + `@container wccToolsViewport` |
+| `cssManager.cssForPhablet(css, this)` | Component | `@container <tag-name>` only |
+| `cssManager.cssForConstraint({maxWidth:800})(css)` | Viewport | `@media` + `@container wccToolsViewport` |
+| `this.cssForConstraint({maxWidth:500})(css)` | Component | `@container <tag-name>` only |
+| `@containerResponsive()` | Decorator | Sets `container-type: inline-size` + `container-name` on `:host` |
+
+The `@containerResponsive()` decorator is required for component-scoped queries — it establishes the CSS containment context on `:host`.
+
 ### ⚡ Reactive Properties & State
 
 Use the standard Lit decorators, re-exported for convenience:
@@ -255,6 +307,7 @@ The directives namespace also re-exports these commonly used Lit directives:
 | `unsafeHTML` | Render raw HTML in templates |
 | `render` | Lit render function |
 | `static` / `unsafeStatic` | Static html template helpers |
+| `containerResponsive` | Decorator that adds CSS containment to `:host` |
 | `domtools` | DOM tooling utilities |
 | `directives` | All directives (resolve, subscribe, etc.) |
 | `rxjs` (type) | RxJS type re-export |

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@design.estate/dees-element',
-  version: '2.1.6',
+  version: '2.2.4',
   description: 'A library for creating custom elements extending the lit element class with additional functionalities.'
 }

ts/classes.cssmanager.ts

@@ -47,26 +47,60 @@ export class CssManager {
     return domtools.elementBasic.staticStyles;
   }
 
-  public cssForDesktop(contentArg: CSSResult) {
+  private getContainerNameFromClass(elementClass: { is?: string; name: string }): string {
+    return elementClass.is || elementClass.name.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
+  }
+
+  public cssForDesktop(contentArg: CSSResult, elementClass?: { is?: string; name: string }) {
+    if (elementClass) {
+      return unsafeCSS(domtools.breakpoints.cssForContainer(
+        contentArg, `(min-width: ${domtools.breakpoints.desktop}px)`, this.getContainerNameFromClass(elementClass),
+      ));
+    }
     return unsafeCSS(domtools.breakpoints.cssForDesktop(contentArg));
   }
 
-  public cssForNotebook(contentArg: CSSResult) {
+  public cssForNotebook(contentArg: CSSResult, elementClass?: { is?: string; name: string }) {
+    if (elementClass) {
+      return unsafeCSS(domtools.breakpoints.cssForContainer(
+        contentArg, `(max-width: ${domtools.breakpoints.notebook}px)`, this.getContainerNameFromClass(elementClass),
+      ));
+    }
     return unsafeCSS(domtools.breakpoints.cssForNotebook(contentArg));
   }
 
-  public cssForTablet(contentArg: CSSResult) {
+  public cssForTablet(contentArg: CSSResult, elementClass?: { is?: string; name: string }) {
+    if (elementClass) {
+      return unsafeCSS(domtools.breakpoints.cssForContainer(
+        contentArg, `(max-width: ${domtools.breakpoints.tablet}px)`, this.getContainerNameFromClass(elementClass),
+      ));
+    }
     return unsafeCSS(domtools.breakpoints.cssForTablet(contentArg));
   }
 
-  public cssForPhablet(contentArg: CSSResult) {
+  public cssForPhablet(contentArg: CSSResult, elementClass?: { is?: string; name: string }) {
+    if (elementClass) {
+      return unsafeCSS(domtools.breakpoints.cssForContainer(
+        contentArg, `(max-width: ${domtools.breakpoints.phablet}px)`, this.getContainerNameFromClass(elementClass),
+      ));
+    }
     return unsafeCSS(domtools.breakpoints.cssForPhablet(contentArg));
   }
 
-  public cssForPhone(contentArg: CSSResult) {
+  public cssForPhone(contentArg: CSSResult, elementClass?: { is?: string; name: string }) {
+    if (elementClass) {
+      return unsafeCSS(domtools.breakpoints.cssForContainer(
+        contentArg, `(max-width: ${domtools.breakpoints.phone}px)`, this.getContainerNameFromClass(elementClass),
+      ));
+    }
     return unsafeCSS(domtools.breakpoints.cssForPhone(contentArg));
   }
 
+  public cssForConstraint(constraints: { maxWidth?: number; minWidth?: number }) {
+    return (contentArg: CSSResult) =>
+      unsafeCSS(domtools.breakpoints.cssForConstraint(constraints)(contentArg));
+  }
+
   public bdTheme(brightValueArg: string, darkValueArg: string): CSSResult {
     let returnCssVar: string;
 

ts/classes.dees-element.ts

@@ -1,6 +1,18 @@
 import * as plugins from './plugins.js';
+import { type CSSResult } from 'lit';
 
 export class DeesElement extends plugins.lit.LitElement {
+  // STATIC — component-level constraint helper (use in `static styles = [...]`)
+
+  private static getContainerName(): string {
+    return (this as any).is || this.name.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
+  }
+
+  static cssForConstraint(constraints: { maxWidth?: number; minWidth?: number }) {
+    return (cssArg: CSSResult) =>
+      plugins.domtools.breakpoints.cssForConstraintContainer(constraints, this.getContainerName())(cssArg);
+  }
+
   // INSTANCE
   @plugins.lit.property({ type: Boolean })
   public accessor goBright: boolean = false;
@@ -9,10 +21,10 @@ export class DeesElement extends plugins.lit.LitElement {
   public domtoolsPromise: Promise<plugins.domtools.DomTools>;
 
   @plugins.lit.property()
-  public accessor domtools: plugins.domtools.DomTools;
+  public accessor domtools!: plugins.domtools.DomTools;
 
   public rxSubscriptions: plugins.smartrx.rxjs.Subscription[] = [];
-  private themeSubscription: plugins.smartrx.rxjs.Subscription;
+  private themeSubscription!: plugins.smartrx.rxjs.Subscription;
 
   private elementDomReadyDeferred = plugins.domtools.plugins.smartpromise.defer();
   public elementDomReady = this.elementDomReadyDeferred.promise;

ts/decorators.containerresponsive.ts

@@ -0,0 +1,47 @@
+import { unsafeCSS, type CSSResult } from 'lit';
+import * as domtools from '@design.estate/dees-domtools';
+
+const camelToKebab = (name: string) =>
+  name.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
+
+export function containerResponsive() {
+  return function (target: any) {
+    const tagName: string =
+      target.is || target.name.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
+
+    // If .is differs from the regex-derived name, cssManager.cssFor*(css, this)
+    // in static styles (evaluated before decorators) used the wrong container name.
+    // Fix those stale references now.
+    const derivedName = target.name ? camelToKebab(target.name) : null;
+    if (derivedName && derivedName !== tagName) {
+      const fixStyle = (style: CSSResult) => {
+        if (style && style.cssText && style.cssText.includes(`@container ${derivedName}`)) {
+          return unsafeCSS(
+            style.cssText.replaceAll(`@container ${derivedName}`, `@container ${tagName}`)
+          );
+        }
+        return style;
+      };
+
+      const original = target.styles;
+      if (Array.isArray(original)) {
+        target.styles = original.map(fixStyle);
+      } else if (original) {
+        target.styles = fixStyle(original);
+      }
+    }
+
+    // Append containment context styles
+    const containerStyles = domtools.breakpoints.containerContextStyles(tagName);
+    const current = target.styles;
+    if (Array.isArray(current)) {
+      target.styles = [...current, containerStyles];
+    } else if (current) {
+      target.styles = [current, containerStyles];
+    } else {
+      target.styles = [containerStyles];
+    }
+
+    return target;
+  };
+}

ts/decorators.customelement.ts

@@ -0,0 +1,25 @@
+import { customElement as litCustomElement } from 'lit/decorators/custom-element.js';
+
+const camelToKebab = (name: string) =>
+  name.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
+
+export function customElement(tagName: string) {
+  return (classOrTarget: any, context?: any) => {
+    // Set .is so that other decorators and utilities can read the tag name
+    classOrTarget.is = tagName;
+
+    // Warn if class name convention doesn't match the tag
+    if (classOrTarget.name) {
+      const derived = camelToKebab(classOrTarget.name);
+      if (derived !== tagName) {
+        console.warn(
+          `[dees-element] Class "${classOrTarget.name}" kebab-cases to "${derived}" but tag is "${tagName}". ` +
+          `Container queries use .is ("${tagName}").`
+        );
+      }
+    }
+
+    // Delegate to Lit's original decorator
+    return litCustomElement(tagName)(classOrTarget, context);
+  };
+}

ts/index.ts

@@ -7,7 +7,7 @@ export { html as static, unsafeStatic } from 'lit/static-html.js';
 
 export { unsafeHTML } from 'lit/directives/unsafe-html.js';
 
-export { customElement } from 'lit/decorators/custom-element.js';
+export { customElement } from './decorators.customelement.js';
 
 export { property, state, query, queryAll, queryAsync } from 'lit/decorators.js';
 
@@ -18,6 +18,9 @@ export { domtools };
 // DeesElements exports
 export * from './classes.dees-element.js';
 
+// decorator exports
+export { containerResponsive } from './decorators.containerresponsive.js';
+
 // directives exports
 import * as directives from './directives/index.js';
 

tsconfig.json

@@ -4,7 +4,8 @@
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
     "esModuleInterop": true,
-    "verbatimModuleSyntax": true
+    "verbatimModuleSyntax": true,
+    "types": ["node"]
   },
   "exclude": [
     "dist_*/**/*.d.ts"