333 lines
21 KiB
JavaScript
333 lines
21 KiB
JavaScript
/**
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* Hamburger Morphing Animation Module
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* A lightweight ES module for creating animated hamburger menu icons using SVG.js
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*/
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// Configuration constants - easily adjustable
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const STROKE_WIDTH = 29;
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const ANIMATION_DURATION = 500;
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// Default colors for light and dark mode compatibility
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const DEFAULT_FOREGROUND = "#000000";
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const DEFAULT_BACKGROUND = "#ffffff";
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const DEFAULT_HOVER = "#ff0000";
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export class HamburgerMorphing {
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/**
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* Creates a new hamburger morphing animation instance
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* @param {string} containerSelector - CSS selector for the container element
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* @param {Object} options - Configuration options
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* @param {number} [options.size=100] - Size of the SVG in pixels
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* @param {string} [options.foreground="#000000"] - Foreground/stroke color for the lines (supports CSS variables)
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* @param {string} [options.background="#ffffff"] - Background color for cutout effects (supports CSS variables)
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* @param {string} [options.hover="#ff0000"] - Hover color for interactive effects (supports CSS variables)
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*/
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constructor(containerSelector, options = {}) {
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this.container = document.querySelector(containerSelector);
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if (!this.container) {
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throw new Error(`Container element not found: ${containerSelector}`);
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}
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this.options = {
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size: options.size || 100,
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foreground: this.resolveCssVariable(options.foreground || DEFAULT_FOREGROUND),
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background: this.resolveCssVariable(options.background || DEFAULT_BACKGROUND),
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hover: this.resolveCssVariable(options.hover || DEFAULT_HOVER)
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};
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this.draw = null;
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this.line1 = null;
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this.line2 = null;
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this.line3 = null;
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this.stroke = {
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color: this.options.foreground,
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width: STROKE_WIDTH,
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linecap: "round",
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linejoin: "round",
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};
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this.init();
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// Add hover event listeners
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this.container.addEventListener('mouseenter', () => this.onHover(true));
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this.container.addEventListener('mouseleave', () => this.onHover(false));
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}
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/**
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* Resolves CSS variables to their computed color values
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* @param {string} color - Color value (can be CSS variable like 'var(--primary-color)' or hex like '#000000')
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* @returns {string} Resolved color value
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*/
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resolveCssVariable(color) {
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// Check if the color is a CSS variable
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if (color && color.trim().startsWith('var(')) {
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// Extract the variable name from var(--variable-name)
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const match = color.match(/var\(\s*(--[^,\s)]+)/);
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if (match) {
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const variableName = match[1];
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// Get the computed style from the document root
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const computedValue = getComputedStyle(document.documentElement)
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.getPropertyValue(variableName)
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.trim();
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// Return the computed value if found, otherwise return the original
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return computedValue || color;
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}
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}
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// Return the color as-is if it's not a CSS variable
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return color;
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}
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/**
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* Initializes the SVG drawing and creates the initial hamburger lines
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*/
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init() {
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// Clear any existing content
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this.container.innerHTML = '';
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// Create SVG drawing - expand to fill container
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this.draw = SVG().addTo(this.container).size('100%', '100%').viewbox(0, 0, 100, 100);
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// Create the three lines
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this.line1 = this.draw.line(20, 20, 80, 20).fill(this.options.background).stroke(this.stroke);
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this.line2 = this.draw.line(20, 50, 80, 50).fill(this.options.background).stroke(this.stroke);
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this.line3 = this.draw.line(20, 80, 80, 80).fill(this.options.background).stroke(this.stroke);
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}
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/**
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* Animates the hamburger icon to a specified shape
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* @param {string} shape - The target shape ('burger', 'x', 'plus', 'minus', 'arrow_left', 'arrow_right', 'arrow_up', 'arrow_down')
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*/
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animateTo(shape) {
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if (!this.line1 || !this.line2 || !this.line3) {
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throw new Error('HamburgerMorphing not properly initialized');
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}
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switch (shape) {
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case 'x':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 20, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'plus':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'minus':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'burger':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'arrow_left':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 20, y1: 20, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 65, x2: 80, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 20, y1: 80, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'arrow_down':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 50, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 20, y2: 35, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 50, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'arrow_up':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 50, y1: 50, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 80, y2: 65, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 50, y1: 50, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'arrow_right':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 20, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 35, y1: 50, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 80, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'triangle_up':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 50, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'triangle_down':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 50, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'triangle_left':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 20, y1: 20, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'triangle_right':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 20, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 20, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'carrot_right':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 20, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 20, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'carrot_left':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 20, y1: 20, y2: 50, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 50, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'carrot_up':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 50, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'carrot_down':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 50, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 80, y1: 80, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'circle':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': 90 , stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': 90 , stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': 90 , stroke: this.options.foreground });
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break;
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case 'doughnut':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': 90 });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': 90 });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 50, x2: 50, y1: 50, y2: 50, 'stroke-width': 45, stroke: this.options.background });
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break;
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case 'moon':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 60, x2: 60, y1: 50, y2: 50, 'stroke-width': 90 });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 60, x2: 60, y1: 50, y2: 50, 'stroke-width': 90 });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 90, x2: 90, y1: 50, y2: 50, 'stroke-width': 90, stroke: this.options.background });
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break;
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case 'u':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 20, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'u_up':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 20, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'u_left':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 20, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'u_right':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'hamburger_vertical':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 20, y2: 20, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 80, y1: 80, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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case 'hamburger_horizontal':
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this.line1.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 20, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line2.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 20, x2: 20, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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this.line3.animate(ANIMATION_DURATION, 0, "now").attr({ x1: 80, x2: 80, y1: 20, y2: 80, 'stroke-width': STROKE_WIDTH, stroke: this.options.foreground });
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break;
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default:
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throw new Error(`Unknown shape: ${shape}`);
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}
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}
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/**
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* Returns the current SVG code as a string
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* @returns {string} SVG markup
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*/
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getSvgCode() {
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const svgElement = this.container.querySelector('svg');
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if (!svgElement) return '';
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const lines = svgElement.querySelectorAll('line');
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let svgCode = `<svg viewBox="0 0 100 100" width="${this.options.size}px" height="${this.options.size}px">\n`;
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lines.forEach(line => {
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const x1 = Math.round(line.getAttribute('x1'));
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const y1 = Math.round(line.getAttribute('y1'));
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const x2 = Math.round(line.getAttribute('x2'));
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const y2 = Math.round(line.getAttribute('y2'));
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const stroke = line.getAttribute('stroke') || this.options.foreground;
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const strokeWidth = line.getAttribute('stroke-width') || STROKE_WIDTH.toString();
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const strokeLinecap = line.getAttribute('stroke-linecap') || 'round';
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const strokeLinejoin = line.getAttribute('stroke-linejoin') || 'round';
|
|
const fill = line.getAttribute('fill') || '#fff';
|
|
const opacity = line.getAttribute('opacity') || '1';
|
|
|
|
svgCode += ` <line x1="${x1}" x2="${x2}" y1="${y1}" y2="${y2}" stroke="${stroke}" stroke-width="${strokeWidth}" stroke-linecap="${strokeLinecap}" stroke-linejoin="${strokeLinejoin}" fill="${fill}" opacity="${opacity}"></line>\n`;
|
|
});
|
|
|
|
svgCode += `</svg>`;
|
|
return svgCode;
|
|
}
|
|
|
|
/**
|
|
* Handles hover state changes with animation
|
|
* @param {boolean} isHovering - Whether the mouse is hovering
|
|
*/
|
|
onHover(isHovering) {
|
|
if (!this.line1 || !this.line2 || !this.line3) return;
|
|
|
|
const targetColor = isHovering ? this.options.hover : this.options.foreground;
|
|
|
|
// Only change color for lines that have the foreground color (not background/cutout colors)
|
|
const hoverDuration = ANIMATION_DURATION / 2; // Half the morphing time
|
|
if (this.line1.attr('stroke') === this.options.foreground || this.line1.attr('stroke') === this.options.hover) {
|
|
this.line1.animate(hoverDuration, 0, "now").attr({ stroke: targetColor });
|
|
}
|
|
if (this.line2.attr('stroke') === this.options.foreground || this.line2.attr('stroke') === this.options.hover) {
|
|
this.line2.animate(hoverDuration, 0, "now").attr({ stroke: targetColor });
|
|
}
|
|
if (this.line3.attr('stroke') === this.options.foreground || this.line3.attr('stroke') === this.options.hover) {
|
|
this.line3.animate(hoverDuration, 0, "now").attr({ stroke: targetColor });
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Destroys the hamburger morphing instance and cleans up the DOM
|
|
*/
|
|
destroy() {
|
|
// Remove event listeners
|
|
this.container.removeEventListener('mouseenter', () => this.onHover(true));
|
|
this.container.removeEventListener('mouseleave', () => this.onHover(false));
|
|
|
|
if (this.draw) {
|
|
this.draw.remove();
|
|
this.draw = null;
|
|
}
|
|
this.line1 = null;
|
|
this.line2 = null;
|
|
this.line3 = null;
|
|
}
|
|
} |