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Author SHA1 Message Date
73171e316a migrate from AmeVox 2026-04-27 02:16:02 +03:00
8246bf3492 ES-Modules enabled 2026-04-26 15:30:49 +03:00
9397e17810 init typescript project 2026-04-26 15:11:44 +03:00
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dist/
node_modules/

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# Gefest
# Gefest Framework
Gefest is a lightweight, TypeScript-based framework for building and managing HTML elements programmatically. It provides a class-based approach to create reusable UI components with built-in support for attributes, classes, styles, and event handling.
## Features
- **Class-based Element Creation**: Define HTML elements as TypeScript classes
- **Attribute Management**: Easy setting, getting, and removing of HTML attributes
- **CSS Class Handling**: Add and remove classes dynamically
- **Style System**: Extensible styling with custom style classes
- **Event Handling**: Built-in click event management with automatic re-rendering
- **Element Registration**: Automatic ID generation and DOM integration
- **Primitive Components**: Pre-built HTML element wrappers
- **Dynamic Updates**: Re-render elements on the fly
## Installation
Gefest is included as a module in this project. To use it in your TypeScript files:
```typescript
import { GefestEngine, GefestElement } from './engine';
import { GefestButton } from './primitives/button';
// ... other imports as needed
```
## Core Concepts
### GefestElement
The base abstract class for all Gefest elements. It provides:
- Content management (strings or nested elements)
- Attribute handling
- Class management
- Style application
- Event binding
- Automatic re-rendering on updates
### GefestEngine
Manages the lifecycle of Gefest elements:
- Registers elements with unique IDs
- Activates event handlers on DOM elements
- Provides the main entry point for applications
- Handles re-rendering of updated elements
### GefestStyle
Abstract base class for styling systems. Implement custom styles by extending this class.
## Basic Usage
### Creating Elements
```typescript
import { GefestButton } from './primitives/button';
// Create a simple button
const button = new GefestButton("Click me!");
console.log(button.build()); // <button data-gefest-id="gefest-abc123">Click me!</button>
```
### Setting Attributes
```typescript
const button = new GefestButton("Submit");
button.setAttribute('type', 'submit');
button.setAttribute('disabled', 'true');
```
### Managing Classes
```typescript
const button = new GefestButton("Button");
button.addClass('btn');
button.addClass('btn-primary');
button.removeClass('btn');
console.log(button.getClassList()); // ['btn-primary']
```
### Hiding Elements
```typescript
const button = new GefestButton("Hidden Button");
button.isHidden = true; // Sets the 'hidden' attribute on the element
```
### Event Handling
```typescript
const button = new GefestButton("Click me!");
button.onClick = () => {
console.log('Button clicked!');
// The framework automatically re-renders after click
};
```
### Updating Elements
```typescript
const button = new GefestButton("Initial");
button.update(); // Re-renders the element in the DOM
```
### Running the Application
```typescript
import { GefestEngine } from './engine';
async function main() {
// Create and configure your elements here
const button = new GefestButton("Hello World");
button.onClick = () => alert('Hello!');
// Insert into DOM
document.body.innerHTML = button.build();
}
GefestEngine.main(main);
```
## Primitives
Gefest includes several pre-built primitive elements:
### GefestButton
Wraps HTML `<button>` elements.
```typescript
const button = new GefestButton("Click me");
button.setAttribute('type', 'submit');
```
### GefestA
Wraps HTML `<a>` elements.
```typescript
const link = new GefestA("Visit site", "https://example.com");
link.setAttribute('target', '_blank');
```
### GefestImg
Wraps HTML `<img>` elements.
```typescript
const image = new GefestImg("", "path/to/image.jpg");
image.setAttribute('alt', 'Description');
```
### Other Primitives
- `GefestP`: Paragraph (`<p>`)
- `GefestSpan`: Span (`<span>`)
- `GefestHeader`: Header (`<h1>`)
- `GefestI`: Italic (`<i>`)
- `GefestSmall`: Small text (`<small>`)
- `GefestCenter`: Centered content (`<center>`)
## Advanced Features
### Nested Elements
```typescript
const link = new GefestA("Read more", "#");
const button = new GefestButton([link, " about this"]);
```
### Custom Elements
Create your own elements by extending `GefestElement`:
```typescript
import { GefestElement } from './element';
export class GefestDiv extends GefestElement {
protected wrapHTML(content: string): string {
const attrString = this.attributesToString();
return `<div ${attrString}>${content}</div>`;
}
}
```
### Custom Styles
Implement custom styling by extending `GefestStyle`:
```typescript
import { GefestStyle, GefestElement } from './style';
export class BootstrapStyle extends GefestStyle {
applyStyle(html: string, element?: GefestElement): string {
// Apply Bootstrap classes or inline styles
if (element?.getClassList().includes('btn')) {
return html.replace('<button', '<button class="btn btn-primary"');
}
return html;
}
}
```
Apply styles to elements:
```typescript
const button = new GefestButton("Styled Button");
button.style = new BootstrapStyle();
```
### Parsing HTML
Convert existing HTML strings to Gefest elements:
```typescript
const element = GefestElement.fromHTML('<button class="btn">Click</button>');
```
## API Reference
### GefestElement
#### Properties
- `gefestId: string` - Unique identifier for the element (readonly)
- `style: GefestStyle | null` - Style to apply to the element
- `onClick: (() => void) | null` - Click event handler (getter/setter)
- `isHidden: boolean` - Whether the element should be hidden (sets the 'hidden' attribute when true)
#### Methods
- `constructor(content: (GefestElement | string)[] | string)`
- `build(isFromStyle?: boolean): string`
- `update(): void` - Re-renders the element in the DOM
- `setAttribute(key: string, value: string): void`
- `getAttribute(key: string): string | undefined`
- `removeAttribute(key: string): void`
- `addClass(className: string): void`
- `removeClass(className: string): void`
- `getClassList(): string[]`
- `setPersonalStyle(style: string | null): void`
#### Static Methods
- `fromHTML(html: string): GefestElement`
### GefestEngine
#### Static Methods
- `register(element: GefestElement): string`
- `activateOnClick(): Promise<void>`
- `main(main: () => Promise<void>): Promise<void>`
- `reRenderByGI(gefestId: string): void`
### GefestStyle
#### Methods
- `applyStyle(html: string, element?: GefestElement): string`
## Examples
### Complete Application
```typescript
import { GefestEngine } from './engine';
import { GefestButton, GefestP } from './primitives';
async function main() {
const title = new GefestP("Welcome to Gefest!");
title.addClass('title');
const button = new GefestButton("Get Started");
button.addClass('start-btn');
button.onClick = () => {
alert('Welcome!');
};
// For custom elements, define them as shown above
const container = new (class extends GefestElement {
protected wrapHTML(content: string): string {
const attrString = this.attributesToString();
return `<div ${attrString}>${content}</div>`;
}
})([title, button]);
container.addClass('container');
document.body.innerHTML = container.build();
}
GefestEngine.main(main);
```
### Form Creation
```typescript
import { GefestButton } from './primitives/button';
const submitBtn = new GefestButton("Submit");
submitBtn.setAttribute('type', 'submit');
submitBtn.addClass('btn-submit');
const form = document.createElement('form');
form.innerHTML = submitBtn.build();
document.body.appendChild(form);
```
## Contributing
To add new primitives or extend the framework:
1. Create new classes extending `GefestElement`
2. Implement the `wrapHTML` method to return the appropriate HTML tag
3. Add event handling if needed
4. Test with `GefestEngine.main()`
## License
This framework is part of the AmeVox project. See project license for details.

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{
"name": "Gefest",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"devDependencies": {
"typescript": "^6.0.3"
}
},
"node_modules/typescript": {
"version": "6.0.3",
"resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
"integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
"dev": true,
"bin": {
"tsc": "bin/tsc",
"tsserver": "bin/tsserver"
},
"engines": {
"node": ">=14.17"
}
}
}
}

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{
"devDependencies": {
"typescript": "^6.0.3"
}
}

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import { GefestEngine } from './engine';
import { GefestStyle } from './style';
// The general class of Gefest
export abstract class GefestElement {
style: GefestStyle | null = null;
isHidden: boolean = false;
//onClick: (() => void) | null = null;
readonly gefestId: string;
protected content: (GefestElement | string)[] | string;
protected attributes: Record<string, string> = {};
protected classList: Set<string> = new Set();
protected clickHandler: (() => void) | null = null;
set onClick(handler: (() => void) | null) {
if (handler) {
this.clickHandler = handler;
} else {
this.clickHandler = null;
}
}
get onClick(): (() => void) | null {
if (this.clickHandler === null)
return null;
return () => {
this.clickHandler!();
GefestEngine.activateOnClick();
};
}
/**
* Creates a new instance of the element from an HTML string.
* @param html The HTML string to parse.
* @returns The created GefestElement.
*/
static fromHTML(html: string): GefestElement {
const htmlElement = new DOMParser().parseFromString(html, 'text/html').body.firstChild as HTMLElement;
const element = new (class extends GefestElement {
protected wrapHTML(content: string): string {
return content;
}
})(htmlElement.innerHTML);
for (const attr of htmlElement.attributes) {
try {
element.setAttribute(attr.name, attr.value);
} catch (_) {}
}
for (const className of htmlElement.classList) {
element.addClass(className);
}
return element;
}
/**
* Creates a new instance of the element.
* @param content The content for the element. Can be a string, an array of strings, an array of GefestElements or a combination of both.
*/
constructor (content : (GefestElement | string)[] | string = []) {
this.gefestId = GefestEngine.register(this);
this.content = content;
}
/**
* Call to GefestEngine for rerender element
*/
update (): void {
GefestEngine.reRenderByGI(this.gefestId);
}
/**
* Builds the element and returns it as a string. If the element has a style, it applies the style to the rendered HTML.
* @param isFromStyle Indicates if the build is being called from a style application. This prevents infinite recursion when applying styles.
* @returns The built element as a string.
*/
build (isFromStyle: boolean = false): string {
if (this.isHidden)
this.setAttribute('hidden', '');
else
this.removeAttribute('hidden');
if (!isFromStyle)
return this.applyStyle(this.render(), this);
return this.render();
};
/**
* Checks if an attribute key is reserved.
* @param key The attribute key.
*/
checkReservedAttribute(key: string): void {
if (({ "style": true, "class": true })[key])
throw new Error(`The attribute "${
key
}" is reserved. Use the setPersonalStyle method for styles and setClass method for classes.`);
}
/**
* Sets a personal style for the element. This will be applied on top of any style that is set for the element.
* @param style The personal style to set. If null, the personal style will be removed.
*/
setPersonalStyle(style: string | null): void {
if (style === null) {
delete this.attributes.style;
return;
}
this.attributes.style = style;
}
/**
* Adds a class to the element's class list and updates the "class" attribute accordingly.
* @param className The class name to add.
*/
addClass(className: string): void {
this.classList.add(className);
this.attributes.class = Array.from(this.classList).join(' ');
}
/**
* Removes a class from the element's class list and updates the "class" attribute accordingly.
* @param className The class name to remove.
*/
removeClass(className: string): void {
this.classList.delete(className);
this.attributes.class = Array.from(this.classList).join(' ');
}
/**
* Gets the list of classes for the element.
* @returns The array of class names.
*/
getClassList(): string[] {
return Array.from(this.classList);
}
/**
* Sets an attribute for the element.
* @param key The attribute key.
* @param value The attribute value.
*/
setAttribute (key: string, value: string): void {
this.checkReservedAttribute(key);
this.attributes[key] = value;
}
/**
* Gets an attribute value by its key.
* @param key The attribute key.
* @returns The attribute value or undefined if not found.
*/
getAttribute (key: string): string | undefined {
return this.attributes[key];
}
/**
* Removes an attribute by its key.
* @param key The attribute key.
*/
removeAttribute (key: string): void {
this.checkReservedAttribute(key);
delete this.attributes[key];
}
/**
* Applies the element's style to the given HTML.
* @param html The HTML to apply the style to.
* @returns The styled HTML.
*/
protected applyStyle(html: string, element?: GefestElement): string {
if (this.style)
return this.style.applyStyle(html, element);
return html;
}
/**
* Converts the element's attributes to a string.
* @returns The attributes string.
*/
protected attributesToString (): string {
return Object.entries(this.attributes)
.map(([key, value]) => `${key}="${value}"`)
.join(' ');
}
/**
* Wraps the given content in HTML tags.
* @param content The content to wrap.
* @returns The wrapped HTML.
*/
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<div ${attrString}>${content}</div>`;
}
/**
* Renders the element and returns it as a string.
* @returns The rendered element as a string.
*/
protected render (): string {
if (typeof this.content === 'string') {
return this.wrapHTML(this.content);
}
const rendered : string[] = [];
for (const item of this.content) {
if (typeof item === 'string') {
rendered.push(this.applyStyle(this.wrapHTML(item)));
}
else if (item instanceof GefestElement) {
if (!item.style && this.style) {
item.style = this.style;
}
rendered.push(item.build());
}
}
return this.wrapHTML(rendered.join(''));
}
}

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import { GefestElement } from "./element";
// For protecting the set of elements from direct access
const elements: Set<GefestElement> = new Set();
const elementsMapping: Map<string, GefestElement> = new Map<string, GefestElement> ();
export class GefestEngine {
static register (element: GefestElement) : string {
elements.add(element);
// Generate GefestID for the element
const gefestId = `gefest-${Math.random().toString(36).substr(2, 9)}`;
element.setAttribute('data-gefest-id', gefestId);
elementsMapping.set(gefestId, element);
return gefestId;
}
static async activateOnClick(): Promise<void> {
for (let element of elements) {
const elementHTML = document.querySelectorAll(`[data-gefest-id="${element.gefestId}"]`);
if (elementHTML.length > 0) {
const htmlElement = elementHTML[0] as HTMLElement;
htmlElement.onclick = element.onClick;
}
}
}
static async main(main : () => Promise<void>): Promise<void> {
await main();
await GefestEngine.activateOnClick();
}
static reRenderByGI (gefestId: string) {
const gefestElement = elementsMapping.get(gefestId);
if (!gefestElement) return;
const elementHTML = document.querySelectorAll(`[data-gefest-id="${gefestId}"]`);
if (elementHTML.length > 0) {
const htmlElement = elementHTML[0] as HTMLElement;
htmlElement.outerHTML = gefestElement.build();
GefestEngine.activateOnClick();
}
}
}

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import { GefestElement } from "../element";
export class GefestA extends GefestElement {
constructor(content : (GefestElement | string)[] | string, href: string | null = null) {
super(content);
if (href !== null)
this.setAttribute('href', href);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<a ${attrString}>${content}</a>`;
}
}

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import { GefestElement } from "../element";
export class GefestButton extends GefestElement {
constructor(content : (GefestElement | string)[] | string) {
super(content);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<button ${attrString}>${content}</button>`;
}
}

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import { GefestElement } from "../element";
export class GefestCenter extends GefestElement {
constructor(content : (GefestElement | string)[] | string) {
super(content);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<center ${attrString}>${content}</center>`;
}
}

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import { GefestElement } from "../element";
type HeaderLevel = 1 | 2 | 3 | 4 | 5 | 6;
export class GefestHeader extends GefestElement {
protected level: HeaderLevel;
constructor(content : (GefestElement | string)[] | string, level : HeaderLevel = 1) {
super(content);
this.level = level;
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<h${this.level} ${attrString}>${content}</h${this.level}>`;
}
}

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import { GefestElement } from "../element";
export class GefestI extends GefestElement {
constructor(content : (GefestElement | string)[] | string) {
super(content);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<i ${attrString}>${content}</i>`;
}
}

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import { GefestElement } from "../element";
export class GefestImg extends GefestElement {
constructor(content : (GefestElement | string)[] | string, src: string) {
super(content);
this.setAttribute('src', src);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<img ${attrString}>${content}</img>`;
}
}

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import { GefestElement } from "../element";
export class GefestP extends GefestElement {
constructor(content : (GefestElement | string)[] | string) {
super(content);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<p ${attrString}>${content}</p>`;
}
}

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import { GefestElement } from "../element";
export class GefestSmall extends GefestElement {
constructor(content : (GefestElement | string)[] | string) {
super(content);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<small ${attrString}>${content}</small>`;
}
}

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import { GefestElement } from "../element";
export class GefestSpan extends GefestElement {
constructor(content : (GefestElement | string)[] | string) {
super(content);
}
protected wrapHTML (content: string): string {
const attrString = this.attributesToString();
return `<span ${attrString}>${content}</span>`;
}
}

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import { GefestElement } from "./element";
export abstract class GefestStyle {
applyStyle (html: string, element ?: GefestElement): string {
throw new Error('You need to implement the applyStyle method in the child class');
}
}

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{
// Visit https://aka.ms/tsconfig to read more about this file
"compilerOptions": {
// File Layout
"rootDir": "./src",
"outDir": "./dist",
// Environment Settings
// See also https://aka.ms/tsconfig/module
"module": "esnext",
"target": "ES2020",
"types": [],
// For nodejs:
// "lib": ["esnext"],
// "types": ["node"],
// and npm install -D @types/node
// Other Outputs
"sourceMap": true,
"declaration": true,
"declarationMap": true,
// Stricter Typechecking Options
"noUncheckedIndexedAccess": true,
"exactOptionalPropertyTypes": true,
// Style Options
// "noImplicitReturns": true,
// "noImplicitOverride": true,
// "noUnusedLocals": true,
// "noUnusedParameters": true,
// "noFallthroughCasesInSwitch": true,
// "noPropertyAccessFromIndexSignature": true,
// Recommended Options
"strict": true,
"jsx": "react-jsx",
"verbatimModuleSyntax": false,
"isolatedModules": true,
"noUncheckedSideEffectImports": true,
"moduleDetection": "force",
"skipLibCheck": true,
}
}