Our 404 error page is a little bit too boring. The solution is to add more penguins ! This relies on MIT licensed javascript code imported from https://github.com/VincentGarreau/particles.js The image is extracted from the existing libvirt logo SVG file. Signed-off-by: Daniel P. Berrangé <berrange@xxxxxxxxxx> --- docs/404.html.in | 7 +- docs/css/libvirt.css | 12 + docs/js/app.js | 108 +++ docs/js/meson.build | 2 + docs/js/particles.js | 1541 ++++++++++++++++++++++++++++++++++++++++ docs/logos/meson.build | 2 + docs/logos/penguin.png | Bin 0 -> 4236 bytes docs/logos/penguin.svg | 358 ++++++++++ docs/page.xsl | 8 + 9 files changed, 2035 insertions(+), 3 deletions(-) create mode 100644 docs/js/app.js create mode 100644 docs/js/particles.js create mode 100644 docs/logos/penguin.png create mode 100644 docs/logos/penguin.svg Yes, this could easily be considered an April Fools' joke, but at the same time it is common to have a bit of fun with 404 error pages, so it is also a real suggestion :-) Live example rendering is at: https://berrange.gitlab.io/-/libvirt/-/jobs/3749944370/artifacts/website/404.html The main "cost" of the fun is a few 10's of KB more in the dist from the JS/SVG/PNG diff --git a/docs/404.html.in b/docs/404.html.in index 0ac76f125a..39cded58f6 100644 --- a/docs/404.html.in +++ b/docs/404.html.in @@ -5,15 +5,16 @@ <h1>404 page not found</h1> <p> - Someone appears to have eaten the <del>penguin</del> - page you were looking for. You might want to try + We can't figure out which <del>penguin</del> page you were + looking for. You might want to try </p> <ul> <li>going back to the <a href="https://libvirt.org/";>home page</a> to find a collection of links to interesting pages on this site</li> <li>using the search box at the top right corner of the screen to locate the content on this site or mailing list archives</li> + <li>selecting the right penguin swimming in the pool below</li> </ul> - + <div id="particles-js"><!-- preserve --></div> </body> </html> diff --git a/docs/css/libvirt.css b/docs/css/libvirt.css index 097dfcbe8e..fbd193da74 100644 --- a/docs/css/libvirt.css +++ b/docs/css/libvirt.css @@ -636,3 +636,15 @@ th p, td p { #contents p.topic-title { display: none; } + +canvas { + display: block; + vertical-align: bottom; +} + +#particles-js { + background-color: rgb(230,250,255); + border: 2px solid rgb(150,180,255); + width: 100%; + height: 100%; +} diff --git a/docs/js/app.js b/docs/js/app.js new file mode 100644 index 0000000000..79fae27c2e --- /dev/null +++ b/docs/js/app.js @@ -0,0 +1,108 @@ +particlesJS('particles-js', + { + "particles": { + "number": { + "value": 20, + "density": { + "enable": true, + "value_area": 800 + } + }, + "color": { + "value": "#ff0000" + }, + "shape": { + "type": "image", + "image": { + "src": "logos/penguin.png", + "width": 73, + "height": 138 + } + }, + "opacity": { + "value": 0.5, + "random": true, + "anim": { + "enable": true, + "speed": 1, + "opacity_min": 0.1, + "sync": false + } + }, + "size": { + "value": 50, + "random": true, + "anim": { + "enable": false, + "speed": 40, + "size_min": 0.1, + "sync": false + } + }, + "line_linked": { + "enable": false, + }, + "move": { + "enable": true, + "speed": 6, + "direction": "none", + "random": false, + "straight": false, + "out_mode": "bounce", + "attract": { + "enable": true, + "rotateX": 600, + "rotateY": 1200 + } + } + }, + "interactivity": { + "detect_on": "canvas", + "events": { + "onhover": { + "enable": true, + "mode": "repulse" + }, + "onclick": { + "enable": true, + "mode": "push" + }, + "resize": true + }, + "modes": { + "grab": { + "distance": 400, + "line_linked": { + "opacity": 1 + } + }, + "bubble": { + "distance": 400, + "size": 40, + "duration": 2, + "opacity": 8, + "speed": 3 + }, + "repulse": { + "distance": 200 + }, + "push": { + "particles_nb": 4 + }, + "remove": { + "particles_nb": 2 + } + } + }, + "retina_detect": true, + "config_demo": { + "hide_card": false, + "background_color": "#b61924", + "background_image": "", + "background_position": "50% 50%", + "background_repeat": "no-repeat", + "background_size": "cover" + } + } + +); diff --git a/docs/js/meson.build b/docs/js/meson.build index cbf2dc2633..4e3e05bf89 100644 --- a/docs/js/meson.build +++ b/docs/js/meson.build @@ -1,5 +1,7 @@ docs_js_files = [ 'main.js', + 'particles.js', + 'app.js' ] install_data(docs_js_files, install_dir: docs_html_dir / 'js') diff --git a/docs/js/particles.js b/docs/js/particles.js new file mode 100644 index 0000000000..ef3917fab7 --- /dev/null +++ b/docs/js/particles.js @@ -0,0 +1,1541 @@ +/* ----------------------------------------------- +/* Author : Vincent Garreau - vincentgarreau.com +/* MIT license: https://opensource.org/licenses/MIT +/* Demo / Generator : vincentgarreau.com/particles.js +/* GitHub : github.com/VincentGarreau/particles.js +/* How to use? : Check the GitHub README +/* v2.0.0 +/* ----------------------------------------------- */ + +var pJS = function(tag_id, params){ + + var canvas_el = document.querySelector('#'+tag_id+' > .particles-js-canvas-el'); + + /* particles.js variables with default values */ + this.pJS = { + canvas: { + el: canvas_el, + w: canvas_el.offsetWidth, + h: canvas_el.offsetHeight + }, + particles: { + number: { + value: 400, + density: { + enable: true, + value_area: 800 + } + }, + color: { + value: '#fff' + }, + shape: { + type: 'circle', + stroke: { + width: 0, + color: '#ff0000' + }, + polygon: { + nb_sides: 5 + }, + image: { + src: '', + width: 100, + height: 100 + } + }, + opacity: { + value: 1, + random: false, + anim: { + enable: false, + speed: 2, + opacity_min: 0, + sync: false + } + }, + size: { + value: 20, + random: false, + anim: { + enable: false, + speed: 20, + size_min: 0, + sync: false + } + }, + line_linked: { + enable: true, + distance: 100, + color: '#fff', + opacity: 1, + width: 1 + }, + move: { + enable: true, + speed: 2, + direction: 'none', + random: false, + straight: false, + out_mode: 'out', + bounce: false, + attract: { + enable: false, + rotateX: 3000, + rotateY: 3000 + } + }, + array: [] + }, + interactivity: { + detect_on: 'canvas', + events: { + onhover: { + enable: true, + mode: 'grab' + }, + onclick: { + enable: true, + mode: 'push' + }, + resize: true + }, + modes: { + grab:{ + distance: 100, + line_linked:{ + opacity: 1 + } + }, + bubble:{ + distance: 200, + size: 80, + duration: 0.4 + }, + repulse:{ + distance: 200, + duration: 0.4 + }, + push:{ + particles_nb: 4 + }, + remove:{ + particles_nb: 2 + } + }, + mouse:{} + }, + retina_detect: false, + fn: { + interact: {}, + modes: {}, + vendors:{} + }, + tmp: {} + }; + + var pJS = this.pJS; + + /* params settings */ + if(params){ + Object.deepExtend(pJS, params); + } + + pJS.tmp.obj = { + size_value: pJS.particles.size.value, + size_anim_speed: pJS.particles.size.anim.speed, + move_speed: pJS.particles.move.speed, + line_linked_distance: pJS.particles.line_linked.distance, + line_linked_width: pJS.particles.line_linked.width, + mode_grab_distance: pJS.interactivity.modes.grab.distance, + mode_bubble_distance: pJS.interactivity.modes.bubble.distance, + mode_bubble_size: pJS.interactivity.modes.bubble.size, + mode_repulse_distance: pJS.interactivity.modes.repulse.distance + }; + + + pJS.fn.retinaInit = function(){ + + if(pJS.retina_detect && window.devicePixelRatio > 1){ + pJS.canvas.pxratio = window.devicePixelRatio; + pJS.tmp.retina = true; + } + else{ + pJS.canvas.pxratio = 1; + pJS.tmp.retina = false; + } + + pJS.canvas.w = pJS.canvas.el.offsetWidth * pJS.canvas.pxratio; + pJS.canvas.h = pJS.canvas.el.offsetHeight * pJS.canvas.pxratio; + + pJS.particles.size.value = pJS.tmp.obj.size_value * pJS.canvas.pxratio; + pJS.particles.size.anim.speed = pJS.tmp.obj.size_anim_speed * pJS.canvas.pxratio; + pJS.particles.move.speed = pJS.tmp.obj.move_speed * pJS.canvas.pxratio; + pJS.particles.line_linked.distance = pJS.tmp.obj.line_linked_distance * pJS.canvas.pxratio; + pJS.interactivity.modes.grab.distance = pJS.tmp.obj.mode_grab_distance * pJS.canvas.pxratio; + pJS.interactivity.modes.bubble.distance = pJS.tmp.obj.mode_bubble_distance * pJS.canvas.pxratio; + pJS.particles.line_linked.width = pJS.tmp.obj.line_linked_width * pJS.canvas.pxratio; + pJS.interactivity.modes.bubble.size = pJS.tmp.obj.mode_bubble_size * pJS.canvas.pxratio; + pJS.interactivity.modes.repulse.distance = pJS.tmp.obj.mode_repulse_distance * pJS.canvas.pxratio; + + }; + + + + /* ---------- pJS functions - canvas ------------ */ + + pJS.fn.canvasInit = function(){ + pJS.canvas.ctx = pJS.canvas.el.getContext('2d'); + }; + + pJS.fn.canvasSize = function(){ + + pJS.canvas.el.width = pJS.canvas.w; + pJS.canvas.el.height = pJS.canvas.h; + + if(pJS && pJS.interactivity.events.resize){ + + window.addEventListener('resize', function(){ + + pJS.canvas.w = pJS.canvas.el.offsetWidth; + pJS.canvas.h = pJS.canvas.el.offsetHeight; + + /* resize canvas */ + if(pJS.tmp.retina){ + pJS.canvas.w *= pJS.canvas.pxratio; + pJS.canvas.h *= pJS.canvas.pxratio; + } + + pJS.canvas.el.width = pJS.canvas.w; + pJS.canvas.el.height = pJS.canvas.h; + + /* repaint canvas on anim disabled */ + if(!pJS.particles.move.enable){ + pJS.fn.particlesEmpty(); + pJS.fn.particlesCreate(); + pJS.fn.particlesDraw(); + pJS.fn.vendors.densityAutoParticles(); + } + + /* density particles enabled */ + pJS.fn.vendors.densityAutoParticles(); + + }); + + } + + }; + + + pJS.fn.canvasPaint = function(){ + pJS.canvas.ctx.fillRect(0, 0, pJS.canvas.w, pJS.canvas.h); + }; + + pJS.fn.canvasClear = function(){ + pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h); + }; + + + /* --------- pJS functions - particles ----------- */ + + pJS.fn.particle = function(color, opacity, position){ + + /* size */ + this.radius = (pJS.particles.size.random ? Math.random() : 1) * pJS.particles.size.value; + if(pJS.particles.size.anim.enable){ + this.size_status = false; + this.vs = pJS.particles.size.anim.speed / 100; + if(!pJS.particles.size.anim.sync){ + this.vs = this.vs * Math.random(); + } + } + + /* position */ + this.x = position ? position.x : Math.random() * pJS.canvas.w; + this.y = position ? position.y : Math.random() * pJS.canvas.h; + + /* check position - into the canvas */ + if(this.x > pJS.canvas.w - this.radius*2) this.x = this.x - this.radius; + else if(this.x < this.radius*2) this.x = this.x + this.radius; + if(this.y > pJS.canvas.h - this.radius*2) this.y = this.y - this.radius; + else if(this.y < this.radius*2) this.y = this.y + this.radius; + + /* check position - avoid overlap */ + if(pJS.particles.move.bounce){ + pJS.fn.vendors.checkOverlap(this, position); + } + + /* color */ + this.color = {}; + if(typeof(color.value) == 'object'){ + + if(color.value instanceof Array){ + var color_selected = color.value[Math.floor(Math.random() * pJS.particles.color.value.length)]; + this.color.rgb = hexToRgb(color_selected); + }else{ + if(color.value.r != undefined && color.value.g != undefined && color.value.b != undefined){ + this.color.rgb = { + r: color.value.r, + g: color.value.g, + b: color.value.b + } + } + if(color.value.h != undefined && color.value.s != undefined && color.value.l != undefined){ + this.color.hsl = { + h: color.value.h, + s: color.value.s, + l: color.value.l + } + } + } + + } + else if(color.value == 'random'){ + this.color.rgb = { + r: (Math.floor(Math.random() * (255 - 0 + 1)) + 0), + g: (Math.floor(Math.random() * (255 - 0 + 1)) + 0), + b: (Math.floor(Math.random() * (255 - 0 + 1)) + 0) + } + } + else if(typeof(color.value) == 'string'){ + this.color = color; + this.color.rgb = hexToRgb(this.color.value); + } + + /* opacity */ + this.opacity = (pJS.particles.opacity.random ? Math.random() : 1) * pJS.particles.opacity.value; + if(pJS.particles.opacity.anim.enable){ + this.opacity_status = false; + this.vo = pJS.particles.opacity.anim.speed / 100; + if(!pJS.particles.opacity.anim.sync){ + this.vo = this.vo * Math.random(); + } + } + + /* animation - velocity for speed */ + var velbase = {} + switch(pJS.particles.move.direction){ + case 'top': + velbase = { x:0, y:-1 }; + break; + case 'top-right': + velbase = { x:0.5, y:-0.5 }; + break; + case 'right': + velbase = { x:1, y:-0 }; + break; + case 'bottom-right': + velbase = { x:0.5, y:0.5 }; + break; + case 'bottom': + velbase = { x:0, y:1 }; + break; + case 'bottom-left': + velbase = { x:-0.5, y:1 }; + break; + case 'left': + velbase = { x:-1, y:0 }; + break; + case 'top-left': + velbase = { x:-0.5, y:-0.5 }; + break; + default: + velbase = { x:0, y:0 }; + break; + } + + if(pJS.particles.move.straight){ + this.vx = velbase.x; + this.vy = velbase.y; + if(pJS.particles.move.random){ + this.vx = this.vx * (Math.random()); + this.vy = this.vy * (Math.random()); + } + }else{ + this.vx = velbase.x + Math.random()-0.5; + this.vy = velbase.y + Math.random()-0.5; + } + + // var theta = 2.0 * Math.PI * Math.random(); + // this.vx = Math.cos(theta); + // this.vy = Math.sin(theta); + + this.vx_i = this.vx; + this.vy_i = this.vy; + + + + /* if shape is image */ + + var shape_type = pJS.particles.shape.type; + if(typeof(shape_type) == 'object'){ + if(shape_type instanceof Array){ + var shape_selected = shape_type[Math.floor(Math.random() * shape_type.length)]; + this.shape = shape_selected; + } + }else{ + this.shape = shape_type; + } + + if(this.shape == 'image'){ + var sh = pJS.particles.shape; + this.img = { + src: sh.image.src, + ratio: sh.image.width / sh.image.height + } + if(!this.img.ratio) this.img.ratio = 1; + if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg != undefined){ + pJS.fn.vendors.createSvgImg(this); + if(pJS.tmp.pushing){ + this.img.loaded = false; + } + } + } + + + + }; + + + pJS.fn.particle.prototype.draw = function() { + + var p = this; + + if(p.radius_bubble != undefined){ + var radius = p.radius_bubble; + }else{ + var radius = p.radius; + } + + if(p.opacity_bubble != undefined){ + var opacity = p.opacity_bubble; + }else{ + var opacity = p.opacity; + } + + if(p.color.rgb){ + var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+opacity+')'; + }else{ + var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+opacity+')'; + } + + pJS.canvas.ctx.fillStyle = color_value; + pJS.canvas.ctx.beginPath(); + + switch(p.shape){ + + case 'circle': + pJS.canvas.ctx.arc(p.x, p.y, radius, 0, Math.PI * 2, false); + break; + + case 'edge': + pJS.canvas.ctx.rect(p.x-radius, p.y-radius, radius*2, radius*2); + break; + + case 'triangle': + pJS.fn.vendors.drawShape(pJS.canvas.ctx, p.x-radius, p.y+radius / 1.66, radius*2, 3, 2); + break; + + case 'polygon': + pJS.fn.vendors.drawShape( + pJS.canvas.ctx, + p.x - radius / (pJS.particles.shape.polygon.nb_sides/3.5), // startX + p.y - radius / (2.66/3.5), // startY + radius*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength + pJS.particles.shape.polygon.nb_sides, // sideCountNumerator + 1 // sideCountDenominator + ); + break; + + case 'star': + pJS.fn.vendors.drawShape( + pJS.canvas.ctx, + p.x - radius*2 / (pJS.particles.shape.polygon.nb_sides/4), // startX + p.y - radius / (2*2.66/3.5), // startY + radius*2*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength + pJS.particles.shape.polygon.nb_sides, // sideCountNumerator + 2 // sideCountDenominator + ); + break; + + case 'image': + + function draw(){ + pJS.canvas.ctx.drawImage( + img_obj, + p.x-radius, + p.y-radius, + radius*2, + radius*2 / p.img.ratio + ); + } + + if(pJS.tmp.img_type == 'svg'){ + var img_obj = p.img.obj; + }else{ + var img_obj = pJS.tmp.img_obj; + } + + if(img_obj){ + draw(); + } + + break; + + } + + pJS.canvas.ctx.closePath(); + + if(pJS.particles.shape.stroke.width > 0){ + pJS.canvas.ctx.strokeStyle = pJS.particles.shape.stroke.color; + pJS.canvas.ctx.lineWidth = pJS.particles.shape.stroke.width; + pJS.canvas.ctx.stroke(); + } + + pJS.canvas.ctx.fill(); + + }; + + + pJS.fn.particlesCreate = function(){ + for(var i = 0; i < pJS.particles.number.value; i++) { + pJS.particles.array.push(new pJS.fn.particle(pJS.particles.color, pJS.particles.opacity.value)); + } + }; + + pJS.fn.particlesUpdate = function(){ + + for(var i = 0; i < pJS.particles.array.length; i++){ + + /* the particle */ + var p = pJS.particles.array[i]; + + // var d = ( dx = pJS.interactivity.mouse.click_pos_x - p.x ) * dx + ( dy = pJS.interactivity.mouse.click_pos_y - p.y ) * dy; + // var f = -BANG_SIZE / d; + // if ( d < BANG_SIZE ) { + // var t = Math.atan2( dy, dx ); + // p.vx = f * Math.cos(t); + // p.vy = f * Math.sin(t); + // } + + /* move the particle */ + if(pJS.particles.move.enable){ + var ms = pJS.particles.move.speed/2; + p.x += p.vx * ms; + p.y += p.vy * ms; + } + + /* change opacity status */ + if(pJS.particles.opacity.anim.enable) { + if(p.opacity_status == true) { + if(p.opacity >= pJS.particles.opacity.value) p.opacity_status = false; + p.opacity += p.vo; + }else { + if(p.opacity <= pJS.particles.opacity.anim.opacity_min) p.opacity_status = true; + p.opacity -= p.vo; + } + if(p.opacity < 0) p.opacity = 0; + } + + /* change size */ + if(pJS.particles.size.anim.enable){ + if(p.size_status == true){ + if(p.radius >= pJS.particles.size.value) p.size_status = false; + p.radius += p.vs; + }else{ + if(p.radius <= pJS.particles.size.anim.size_min) p.size_status = true; + p.radius -= p.vs; + } + if(p.radius < 0) p.radius = 0; + } + + /* change particle position if it is out of canvas */ + if(pJS.particles.move.out_mode == 'bounce'){ + var new_pos = { + x_left: p.radius, + x_right: pJS.canvas.w, + y_top: p.radius, + y_bottom: pJS.canvas.h + } + }else{ + var new_pos = { + x_left: -p.radius, + x_right: pJS.canvas.w + p.radius, + y_top: -p.radius, + y_bottom: pJS.canvas.h + p.radius + } + } + + if(p.x - p.radius > pJS.canvas.w){ + p.x = new_pos.x_left; + p.y = Math.random() * pJS.canvas.h; + } + else if(p.x + p.radius < 0){ + p.x = new_pos.x_right; + p.y = Math.random() * pJS.canvas.h; + } + if(p.y - p.radius > pJS.canvas.h){ + p.y = new_pos.y_top; + p.x = Math.random() * pJS.canvas.w; + } + else if(p.y + p.radius < 0){ + p.y = new_pos.y_bottom; + p.x = Math.random() * pJS.canvas.w; + } + + /* out of canvas modes */ + switch(pJS.particles.move.out_mode){ + case 'bounce': + if (p.x + p.radius > pJS.canvas.w) p.vx = -p.vx; + else if (p.x - p.radius < 0) p.vx = -p.vx; + if (p.y + p.radius > pJS.canvas.h) p.vy = -p.vy; + else if (p.y - p.radius < 0) p.vy = -p.vy; + break; + } + + /* events */ + if(isInArray('grab', pJS.interactivity.events.onhover.mode)){ + pJS.fn.modes.grabParticle(p); + } + + if(isInArray('bubble', pJS.interactivity.events.onhover.mode) || isInArray('bubble', pJS.interactivity.events.onclick.mode)){ + pJS.fn.modes.bubbleParticle(p); + } + + if(isInArray('repulse', pJS.interactivity.events.onhover.mode) || isInArray('repulse', pJS.interactivity.events.onclick.mode)){ + pJS.fn.modes.repulseParticle(p); + } + + /* interaction auto between particles */ + if(pJS.particles.line_linked.enable || pJS.particles.move.attract.enable){ + for(var j = i + 1; j < pJS.particles.array.length; j++){ + var p2 = pJS.particles.array[j]; + + /* link particles */ + if(pJS.particles.line_linked.enable){ + pJS.fn.interact.linkParticles(p,p2); + } + + /* attract particles */ + if(pJS.particles.move.attract.enable){ + pJS.fn.interact.attractParticles(p,p2); + } + + /* bounce particles */ + if(pJS.particles.move.bounce){ + pJS.fn.interact.bounceParticles(p,p2); + } + + } + } + + + } + + }; + + pJS.fn.particlesDraw = function(){ + + /* clear canvas */ + pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h); + + /* update each particles param */ + pJS.fn.particlesUpdate(); + + /* draw each particle */ + for(var i = 0; i < pJS.particles.array.length; i++){ + var p = pJS.particles.array[i]; + p.draw(); + } + + }; + + pJS.fn.particlesEmpty = function(){ + pJS.particles.array = []; + }; + + pJS.fn.particlesRefresh = function(){ + + /* init all */ + cancelRequestAnimFrame(pJS.fn.checkAnimFrame); + cancelRequestAnimFrame(pJS.fn.drawAnimFrame); + pJS.tmp.source_svg = undefined; + pJS.tmp.img_obj = undefined; + pJS.tmp.count_svg = 0; + pJS.fn.particlesEmpty(); + pJS.fn.canvasClear(); + + /* restart */ + pJS.fn.vendors.start(); + + }; + + + /* ---------- pJS functions - particles interaction ------------ */ + + pJS.fn.interact.linkParticles = function(p1, p2){ + + var dx = p1.x - p2.x, + dy = p1.y - p2.y, + dist = Math.sqrt(dx*dx + dy*dy); + + /* draw a line between p1 and p2 if the distance between them is under the config distance */ + if(dist <= pJS.particles.line_linked.distance){ + + var opacity_line = pJS.particles.line_linked.opacity - (dist / (1/pJS.particles.line_linked.opacity)) / pJS.particles.line_linked.distance; + + if(opacity_line > 0){ + + /* style */ + var color_line = pJS.particles.line_linked.color_rgb_line; + pJS.canvas.ctx.strokeStyle = 'rgba('+color_line.r+','+color_line.g+','+color_line.b+','+opacity_line+')'; + pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width; + //pJS.canvas.ctx.lineCap = 'round'; /* performance issue */ + + /* path */ + pJS.canvas.ctx.beginPath(); + pJS.canvas.ctx.moveTo(p1.x, p1.y); + pJS.canvas.ctx.lineTo(p2.x, p2.y); + pJS.canvas.ctx.stroke(); + pJS.canvas.ctx.closePath(); + + } + + } + + }; + + + pJS.fn.interact.attractParticles = function(p1, p2){ + + /* condensed particles */ + var dx = p1.x - p2.x, + dy = p1.y - p2.y, + dist = Math.sqrt(dx*dx + dy*dy); + + if(dist <= pJS.particles.line_linked.distance){ + + var ax = dx/(pJS.particles.move.attract.rotateX*1000), + ay = dy/(pJS.particles.move.attract.rotateY*1000); + + p1.vx -= ax; + p1.vy -= ay; + + p2.vx += ax; + p2.vy += ay; + + } + + + } + + + pJS.fn.interact.bounceParticles = function(p1, p2){ + + var dx = p1.x - p2.x, + dy = p1.y - p2.y, + dist = Math.sqrt(dx*dx + dy*dy), + dist_p = p1.radius+p2.radius; + + if(dist <= dist_p){ + p1.vx = -p1.vx; + p1.vy = -p1.vy; + + p2.vx = -p2.vx; + p2.vy = -p2.vy; + } + + } + + + /* ---------- pJS functions - modes events ------------ */ + + pJS.fn.modes.pushParticles = function(nb, pos){ + + pJS.tmp.pushing = true; + + for(var i = 0; i < nb; i++){ + pJS.particles.array.push( + new pJS.fn.particle( + pJS.particles.color, + pJS.particles.opacity.value, + { + 'x': pos ? pos.pos_x : Math.random() * pJS.canvas.w, + 'y': pos ? pos.pos_y : Math.random() * pJS.canvas.h + } + ) + ) + if(i == nb-1){ + if(!pJS.particles.move.enable){ + pJS.fn.particlesDraw(); + } + pJS.tmp.pushing = false; + } + } + + }; + + + pJS.fn.modes.removeParticles = function(nb){ + + pJS.particles.array.splice(0, nb); + if(!pJS.particles.move.enable){ + pJS.fn.particlesDraw(); + } + + }; + + + pJS.fn.modes.bubbleParticle = function(p){ + + /* on hover event */ + if(pJS.interactivity.events.onhover.enable && isInArray('bubble', pJS.interactivity.events.onhover.mode)){ + + var dx_mouse = p.x - pJS.interactivity.mouse.pos_x, + dy_mouse = p.y - pJS.interactivity.mouse.pos_y, + dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse), + ratio = 1 - dist_mouse / pJS.interactivity.modes.bubble.distance; + + function init(){ + p.opacity_bubble = p.opacity; + p.radius_bubble = p.radius; + } + + /* mousemove - check ratio */ + if(dist_mouse <= pJS.interactivity.modes.bubble.distance){ + + if(ratio >= 0 && pJS.interactivity.status == 'mousemove'){ + + /* size */ + if(pJS.interactivity.modes.bubble.size != pJS.particles.size.value){ + + if(pJS.interactivity.modes.bubble.size > pJS.particles.size.value){ + var size = p.radius + (pJS.interactivity.modes.bubble.size*ratio); + if(size >= 0){ + p.radius_bubble = size; + } + }else{ + var dif = p.radius - pJS.interactivity.modes.bubble.size, + size = p.radius - (dif*ratio); + if(size > 0){ + p.radius_bubble = size; + }else{ + p.radius_bubble = 0; + } + } + + } + + /* opacity */ + if(pJS.interactivity.modes.bubble.opacity != pJS.particles.opacity.value){ + + if(pJS.interactivity.modes.bubble.opacity > pJS.particles.opacity.value){ + var opacity = pJS.interactivity.modes.bubble.opacity*ratio; + if(opacity > p.opacity && opacity <= pJS.interactivity.modes.bubble.opacity){ + p.opacity_bubble = opacity; + } + }else{ + var opacity = p.opacity - (pJS.particles.opacity.value-pJS.interactivity.modes.bubble.opacity)*ratio; + if(opacity < p.opacity && opacity >= pJS.interactivity.modes.bubble.opacity){ + p.opacity_bubble = opacity; + } + } + + } + + } + + }else{ + init(); + } + + + /* mouseleave */ + if(pJS.interactivity.status == 'mouseleave'){ + init(); + } + + } + + /* on click event */ + else if(pJS.interactivity.events.onclick.enable && isInArray('bubble', pJS.interactivity.events.onclick.mode)){ + + + if(pJS.tmp.bubble_clicking){ + var dx_mouse = p.x - pJS.interactivity.mouse.click_pos_x, + dy_mouse = p.y - pJS.interactivity.mouse.click_pos_y, + dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse), + time_spent = (new Date().getTime() - pJS.interactivity.mouse.click_time)/1000; + + if(time_spent > pJS.interactivity.modes.bubble.duration){ + pJS.tmp.bubble_duration_end = true; + } + + if(time_spent > pJS.interactivity.modes.bubble.duration*2){ + pJS.tmp.bubble_clicking = false; + pJS.tmp.bubble_duration_end = false; + } + } + + + function process(bubble_param, particles_param, p_obj_bubble, p_obj, id){ + + if(bubble_param != particles_param){ + + if(!pJS.tmp.bubble_duration_end){ + if(dist_mouse <= pJS.interactivity.modes.bubble.distance){ + if(p_obj_bubble != undefined) var obj = p_obj_bubble; + else var obj = p_obj; + if(obj != bubble_param){ + var value = p_obj - (time_spent * (p_obj - bubble_param) / pJS.interactivity.modes.bubble.duration); + if(id == 'size') p.radius_bubble = value; + if(id == 'opacity') p.opacity_bubble = value; + } + }else{ + if(id == 'size') p.radius_bubble = undefined; + if(id == 'opacity') p.opacity_bubble = undefined; + } + }else{ + if(p_obj_bubble != undefined){ + var value_tmp = p_obj - (time_spent * (p_obj - bubble_param) / pJS.interactivity.modes.bubble.duration), + dif = bubble_param - value_tmp; + value = bubble_param + dif; + if(id == 'size') p.radius_bubble = value; + if(id == 'opacity') p.opacity_bubble = value; + } + } + + } + + } + + if(pJS.tmp.bubble_clicking){ + /* size */ + process(pJS.interactivity.modes.bubble.size, pJS.particles.size.value, p.radius_bubble, p.radius, 'size'); + /* opacity */ + process(pJS.interactivity.modes.bubble.opacity, pJS.particles.opacity.value, p.opacity_bubble, p.opacity, 'opacity'); + } + + } + + }; + + + pJS.fn.modes.repulseParticle = function(p){ + + if(pJS.interactivity.events.onhover.enable && isInArray('repulse', pJS.interactivity.events.onhover.mode) && pJS.interactivity.status == 'mousemove') { + + var dx_mouse = p.x - pJS.interactivity.mouse.pos_x, + dy_mouse = p.y - pJS.interactivity.mouse.pos_y, + dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse); + + var normVec = {x: dx_mouse/dist_mouse, y: dy_mouse/dist_mouse}, + repulseRadius = pJS.interactivity.modes.repulse.distance, + velocity = 100, + repulseFactor = clamp((1/repulseRadius)*(-1*Math.pow(dist_mouse/repulseRadius,2)+1)*repulseRadius*velocity, 0, 50); + + var pos = { + x: p.x + normVec.x * repulseFactor, + y: p.y + normVec.y * repulseFactor + } + + if(pJS.particles.move.out_mode == 'bounce'){ + if(pos.x - p.radius > 0 && pos.x + p.radius < pJS.canvas.w) p.x = pos.x; + if(pos.y - p.radius > 0 && pos.y + p.radius < pJS.canvas.h) p.y = pos.y; + }else{ + p.x = pos.x; + p.y = pos.y; + } + + } + + + else if(pJS.interactivity.events.onclick.enable && isInArray('repulse', pJS.interactivity.events.onclick.mode)) { + + if(!pJS.tmp.repulse_finish){ + pJS.tmp.repulse_count++; + if(pJS.tmp.repulse_count == pJS.particles.array.length){ + pJS.tmp.repulse_finish = true; + } + } + + if(pJS.tmp.repulse_clicking){ + + var repulseRadius = Math.pow(pJS.interactivity.modes.repulse.distance/6, 3); + + var dx = pJS.interactivity.mouse.click_pos_x - p.x, + dy = pJS.interactivity.mouse.click_pos_y - p.y, + d = dx*dx + dy*dy; + + var force = -repulseRadius / d * 1; + + function process(){ + + var f = Math.atan2(dy,dx); + p.vx = force * Math.cos(f); + p.vy = force * Math.sin(f); + + if(pJS.particles.move.out_mode == 'bounce'){ + var pos = { + x: p.x + p.vx, + y: p.y + p.vy + } + if (pos.x + p.radius > pJS.canvas.w) p.vx = -p.vx; + else if (pos.x - p.radius < 0) p.vx = -p.vx; + if (pos.y + p.radius > pJS.canvas.h) p.vy = -p.vy; + else if (pos.y - p.radius < 0) p.vy = -p.vy; + } + + } + + // default + if(d <= repulseRadius){ + process(); + } + + // bang - slow motion mode + // if(!pJS.tmp.repulse_finish){ + // if(d <= repulseRadius){ + // process(); + // } + // }else{ + // process(); + // } + + + }else{ + + if(pJS.tmp.repulse_clicking == false){ + + p.vx = p.vx_i; + p.vy = p.vy_i; + + } + + } + + } + + } + + + pJS.fn.modes.grabParticle = function(p){ + + if(pJS.interactivity.events.onhover.enable && pJS.interactivity.status == 'mousemove'){ + + var dx_mouse = p.x - pJS.interactivity.mouse.pos_x, + dy_mouse = p.y - pJS.interactivity.mouse.pos_y, + dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse); + + /* draw a line between the cursor and the particle if the distance between them is under the config distance */ + if(dist_mouse <= pJS.interactivity.modes.grab.distance){ + + var opacity_line = pJS.interactivity.modes.grab.line_linked.opacity - (dist_mouse / (1/pJS.interactivity.modes.grab.line_linked.opacity)) / pJS.interactivity.modes.grab.distance; + + if(opacity_line > 0){ + + /* style */ + var color_line = pJS.particles.line_linked.color_rgb_line; + pJS.canvas.ctx.strokeStyle = 'rgba('+color_line.r+','+color_line.g+','+color_line.b+','+opacity_line+')'; + pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width; + //pJS.canvas.ctx.lineCap = 'round'; /* performance issue */ + + /* path */ + pJS.canvas.ctx.beginPath(); + pJS.canvas.ctx.moveTo(p.x, p.y); + pJS.canvas.ctx.lineTo(pJS.interactivity.mouse.pos_x, pJS.interactivity.mouse.pos_y); + pJS.canvas.ctx.stroke(); + pJS.canvas.ctx.closePath(); + + } + + } + + } + + }; + + + + /* ---------- pJS functions - vendors ------------ */ + + pJS.fn.vendors.eventsListeners = function(){ + + /* events target element */ + if(pJS.interactivity.detect_on == 'window'){ + pJS.interactivity.el = window; + }else{ + pJS.interactivity.el = pJS.canvas.el; + } + + + /* detect mouse pos - on hover / click event */ + if(pJS.interactivity.events.onhover.enable || pJS.interactivity.events.onclick.enable){ + + /* el on mousemove */ + pJS.interactivity.el.addEventListener('mousemove', function(e){ + + if(pJS.interactivity.el == window){ + var pos_x = e.clientX, + pos_y = e.clientY; + } + else{ + var pos_x = e.offsetX || e.clientX, + pos_y = e.offsetY || e.clientY; + } + + pJS.interactivity.mouse.pos_x = pos_x; + pJS.interactivity.mouse.pos_y = pos_y; + + if(pJS.tmp.retina){ + pJS.interactivity.mouse.pos_x *= pJS.canvas.pxratio; + pJS.interactivity.mouse.pos_y *= pJS.canvas.pxratio; + } + + pJS.interactivity.status = 'mousemove'; + + }); + + /* el on onmouseleave */ + pJS.interactivity.el.addEventListener('mouseleave', function(e){ + + pJS.interactivity.mouse.pos_x = null; + pJS.interactivity.mouse.pos_y = null; + pJS.interactivity.status = 'mouseleave'; + + }); + + } + + /* on click event */ + if(pJS.interactivity.events.onclick.enable){ + + pJS.interactivity.el.addEventListener('click', function(){ + + pJS.interactivity.mouse.click_pos_x = pJS.interactivity.mouse.pos_x; + pJS.interactivity.mouse.click_pos_y = pJS.interactivity.mouse.pos_y; + pJS.interactivity.mouse.click_time = new Date().getTime(); + + if(pJS.interactivity.events.onclick.enable){ + + switch(pJS.interactivity.events.onclick.mode){ + + case 'push': + if(pJS.particles.move.enable){ + pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse); + }else{ + if(pJS.interactivity.modes.push.particles_nb == 1){ + pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse); + } + else if(pJS.interactivity.modes.push.particles_nb > 1){ + pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb); + } + } + break; + + case 'remove': + pJS.fn.modes.removeParticles(pJS.interactivity.modes.remove.particles_nb); + break; + + case 'bubble': + pJS.tmp.bubble_clicking = true; + break; + + case 'repulse': + pJS.tmp.repulse_clicking = true; + pJS.tmp.repulse_count = 0; + pJS.tmp.repulse_finish = false; + setTimeout(function(){ + pJS.tmp.repulse_clicking = false; + }, pJS.interactivity.modes.repulse.duration*1000) + break; + + } + + } + + }); + + } + + + }; + + pJS.fn.vendors.densityAutoParticles = function(){ + + if(pJS.particles.number.density.enable){ + + /* calc area */ + var area = pJS.canvas.el.width * pJS.canvas.el.height / 1000; + if(pJS.tmp.retina){ + area = area/(pJS.canvas.pxratio*2); + } + + /* calc number of particles based on density area */ + var nb_particles = area * pJS.particles.number.value / pJS.particles.number.density.value_area; + + /* add or remove X particles */ + var missing_particles = pJS.particles.array.length - nb_particles; + if(missing_particles < 0) pJS.fn.modes.pushParticles(Math.abs(missing_particles)); + else pJS.fn.modes.removeParticles(missing_particles); + + } + + }; + + + pJS.fn.vendors.checkOverlap = function(p1, position){ + for(var i = 0; i < pJS.particles.array.length; i++){ + var p2 = pJS.particles.array[i]; + + var dx = p1.x - p2.x, + dy = p1.y - p2.y, + dist = Math.sqrt(dx*dx + dy*dy); + + if(dist <= p1.radius + p2.radius){ + p1.x = position ? position.x : Math.random() * pJS.canvas.w; + p1.y = position ? position.y : Math.random() * pJS.canvas.h; + pJS.fn.vendors.checkOverlap(p1); + } + } + }; + + + pJS.fn.vendors.createSvgImg = function(p){ + + /* set color to svg element */ + var svgXml = pJS.tmp.source_svg, + rgbHex = /#([0-9A-F]{3,6})/gi, + coloredSvgXml = svgXml.replace(rgbHex, function (m, r, g, b) { + if(p.color.rgb){ + var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+p.opacity+')'; + }else{ + var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+p.opacity+')'; + } + return color_value; + }); + + /* prepare to create img with colored svg */ + var svg = new Blob([coloredSvgXml], {type: 'image/svg+xml;charset=utf-8'}), + DOMURL = window.URL || window.webkitURL || window, + url = DOMURL.createObjectURL(svg); + + /* create particle img obj */ + var img = new Image(); + img.addEventListener('load', function(){ + p.img.obj = img; + p.img.loaded = true; + DOMURL.revokeObjectURL(url); + pJS.tmp.count_svg++; + }); + img.src = url; + + }; + + + pJS.fn.vendors.destroypJS = function(){ + cancelAnimationFrame(pJS.fn.drawAnimFrame); + canvas_el.remove(); + pJSDom = null; + }; + + + pJS.fn.vendors.drawShape = function(c, startX, startY, sideLength, sideCountNumerator, sideCountDenominator){ + + // By Programming Thomas - https://programmingthomas.wordpress.com/2013/04/03/n-sided-shapes/ + var sideCount = sideCountNumerator * sideCountDenominator; + var decimalSides = sideCountNumerator / sideCountDenominator; + var interiorAngleDegrees = (180 * (decimalSides - 2)) / decimalSides; + var interiorAngle = Math.PI - Math.PI * interiorAngleDegrees / 180; // convert to radians + c.save(); + c.beginPath(); + c.translate(startX, startY); + c.moveTo(0,0); + for (var i = 0; i < sideCount; i++) { + c.lineTo(sideLength,0); + c.translate(sideLength,0); + c.rotate(interiorAngle); + } + //c.stroke(); + c.fill(); + c.restore(); + + }; + + pJS.fn.vendors.exportImg = function(){ + window.open(pJS.canvas.el.toDataURL('image/png'), '_blank'); + }; + + + pJS.fn.vendors.loadImg = function(type){ + + pJS.tmp.img_error = undefined; + + if(pJS.particles.shape.image.src != ''){ + + if(type == 'svg'){ + + var xhr = new XMLHttpRequest(); + xhr.open('GET', pJS.particles.shape.image.src); + xhr.onreadystatechange = function (data) { + if(xhr.readyState == 4){ + if(xhr.status == 200){ + pJS.tmp.source_svg = data.currentTarget.response; + pJS.fn.vendors.checkBeforeDraw(); + }else{ + console.log('Error pJS - Image not found'); + pJS.tmp.img_error = true; + } + } + } + xhr.send(); + + }else{ + + var img = new Image(); + img.addEventListener('load', function(){ + pJS.tmp.img_obj = img; + pJS.fn.vendors.checkBeforeDraw(); + }); + img.src = pJS.particles.shape.image.src; + + } + + }else{ + console.log('Error pJS - No image.src'); + pJS.tmp.img_error = true; + } + + }; + + + pJS.fn.vendors.draw = function(){ + + if(pJS.particles.shape.type == 'image'){ + + if(pJS.tmp.img_type == 'svg'){ + + if(pJS.tmp.count_svg >= pJS.particles.number.value){ + pJS.fn.particlesDraw(); + if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame); + else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); + }else{ + //console.log('still loading...'); + if(!pJS.tmp.img_error) pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); + } + + }else{ + + if(pJS.tmp.img_obj != undefined){ + pJS.fn.particlesDraw(); + if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame); + else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); + }else{ + if(!pJS.tmp.img_error) pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); + } + + } + + }else{ + pJS.fn.particlesDraw(); + if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame); + else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); + } + + }; + + + pJS.fn.vendors.checkBeforeDraw = function(){ + + // if shape is image + if(pJS.particles.shape.type == 'image'){ + + if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg == undefined){ + pJS.tmp.checkAnimFrame = requestAnimFrame(check); + }else{ + //console.log('images loaded! cancel check'); + cancelRequestAnimFrame(pJS.tmp.checkAnimFrame); + if(!pJS.tmp.img_error){ + pJS.fn.vendors.init(); + pJS.fn.vendors.draw(); + } + + } + + }else{ + pJS.fn.vendors.init(); + pJS.fn.vendors.draw(); + } + + }; + + + pJS.fn.vendors.init = function(){ + + /* init canvas + particles */ + pJS.fn.retinaInit(); + pJS.fn.canvasInit(); + pJS.fn.canvasSize(); + pJS.fn.canvasPaint(); + pJS.fn.particlesCreate(); + pJS.fn.vendors.densityAutoParticles(); + + /* particles.line_linked - convert hex colors to rgb */ + pJS.particles.line_linked.color_rgb_line = hexToRgb(pJS.particles.line_linked.color); + + }; + + + pJS.fn.vendors.start = function(){ + + if(isInArray('image', pJS.particles.shape.type)){ + pJS.tmp.img_type = pJS.particles.shape.image.src.substr(pJS.particles.shape.image.src.length - 3); + pJS.fn.vendors.loadImg(pJS.tmp.img_type); + }else{ + pJS.fn.vendors.checkBeforeDraw(); + } + + }; + + + + + /* ---------- pJS - start ------------ */ + + + pJS.fn.vendors.eventsListeners(); + + pJS.fn.vendors.start(); + + + +}; + +/* ---------- global functions - vendors ------------ */ + +Object.deepExtend = function(destination, source) { + for (var property in source) { + if (source[property] && source[property].constructor && + source[property].constructor === Object) { + destination[property] = destination[property] || {}; + arguments.callee(destination[property], source[property]); + } else { + destination[property] = source[property]; + } + } + return destination; +}; + +window.requestAnimFrame = (function(){ + return window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function(callback){ + window.setTimeout(callback, 1000 / 60); + }; +})(); + +window.cancelRequestAnimFrame = ( function() { + return window.cancelAnimationFrame || + window.webkitCancelRequestAnimationFrame || + window.mozCancelRequestAnimationFrame || + window.oCancelRequestAnimationFrame || + window.msCancelRequestAnimationFrame || + clearTimeout +} )(); + +function hexToRgb(hex){ + // By Tim Down - https://stackoverflow.com/a/5624139/3493650 + // Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF") + var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i; + hex = hex.replace(shorthandRegex, function(m, r, g, b) { + return r + r + g + g + b + b; + }); + var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); + return result ? { + r: parseInt(result[1], 16), + g: parseInt(result[2], 16), + b: parseInt(result[3], 16) + } : null; +}; + +function clamp(number, min, max) { + return Math.min(Math.max(number, min), max); +}; + +function isInArray(value, array) { + return array.indexOf(value) > -1; +} + + +/* ---------- particles.js functions - start ------------ */ + +window.pJSDom = []; + +window.particlesJS = function(tag_id, params){ + + //console.log(params); + + /* no string id? so it's object params, and set the id with default id */ + if(typeof(tag_id) != 'string'){ + params = tag_id; + tag_id = 'particles-js'; + } + + /* no id? set the id to default id */ + if(!tag_id){ + tag_id = 'particles-js'; + } + + /* pJS elements */ + var pJS_tag = document.getElementById(tag_id), + pJS_canvas_class = 'particles-js-canvas-el', + exist_canvas = pJS_tag.getElementsByClassName(pJS_canvas_class); + + /* remove canvas if exists into the pJS target tag */ + if(exist_canvas.length){ + while(exist_canvas.length > 0){ + pJS_tag.removeChild(exist_canvas[0]); + } + } + + /* create canvas element */ + var canvas_el = document.createElement('canvas'); + canvas_el.className = pJS_canvas_class; + + /* set size canvas */ + canvas_el.style.width = "100%"; + canvas_el.style.height = "100%"; + + /* append canvas */ + var canvas = document.getElementById(tag_id).appendChild(canvas_el); + + /* launch particle.js */ + if(canvas != null){ + pJSDom.push(new pJS(tag_id, params)); + } + +}; + +window.particlesJS.load = function(tag_id, path_config_json, callback){ + + /* load json config */ + var xhr = new XMLHttpRequest(); + xhr.open('GET', path_config_json); + xhr.onreadystatechange = function (data) { + if(xhr.readyState == 4){ + if(xhr.status == 200){ + var params = JSON.parse(data.currentTarget.response); + window.particlesJS(tag_id, params); + if(callback) callback(); + }else{ + console.log('Error pJS - XMLHttpRequest status: '+xhr.status); + console.log('Error pJS - File config not found'); + } + } + }; + xhr.send(); + +}; diff --git a/docs/logos/meson.build b/docs/logos/meson.build index 70ba67d71c..0038d4fa42 100644 --- a/docs/logos/meson.build +++ b/docs/logos/meson.build @@ -18,6 +18,8 @@ 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