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svelte/transition/index.js

245 lines
7.8 KiB

'use strict';
var easing = require('../easing/index.js');
var Component = require('../internal/Component-9c4b98a2.js');
/**
* @param {Element} node
* @param {import('./public').BlurParams} [params]
* @returns {import('./public').TransitionConfig}
*/
function blur(
node,
{ delay = 0, duration = 400, easing: easing$1 = easing.cubicInOut, amount = 5, opacity = 0 } = {}
) {
const style = getComputedStyle(node);
const target_opacity = +style.opacity;
const f = style.filter === 'none' ? '' : style.filter;
const od = target_opacity * (1 - opacity);
const [value, unit] = Component.split_css_unit(amount);
return {
delay,
duration,
easing: easing$1,
css: (_t, u) => `opacity: ${target_opacity - od * u}; filter: ${f} blur(${u * value}${unit});`
};
}
/**
* @param {Element} node
* @param {import('./public').FadeParams} [params]
* @returns {import('./public').TransitionConfig}
*/
function fade(node, { delay = 0, duration = 400, easing = Component.identity } = {}) {
const o = +getComputedStyle(node).opacity;
return {
delay,
duration,
easing,
css: (t) => `opacity: ${t * o}`
};
}
/**
* @param {Element} node
* @param {import('./public').FlyParams} [params]
* @returns {import('./public').TransitionConfig}
*/
function fly(
node,
{ delay = 0, duration = 400, easing: easing$1 = easing.cubicOut, x = 0, y = 0, opacity = 0 } = {}
) {
const style = getComputedStyle(node);
const target_opacity = +style.opacity;
const transform = style.transform === 'none' ? '' : style.transform;
const od = target_opacity * (1 - opacity);
const [xValue, xUnit] = Component.split_css_unit(x);
const [yValue, yUnit] = Component.split_css_unit(y);
return {
delay,
duration,
easing: easing$1,
css: (t, u) => `
transform: ${transform} translate(${(1 - t) * xValue}${xUnit}, ${(1 - t) * yValue}${yUnit});
opacity: ${target_opacity - od * u}`
};
}
/**
* @param {Element} node
* @param {import('./public').SlideParams} [params]
* @returns {import('./public').TransitionConfig}
*/
function slide(node, { delay = 0, duration = 400, easing: easing$1 = easing.cubicOut, axis = 'y' } = {}) {
const style = getComputedStyle(node);
const opacity = +style.opacity;
const primary_property = axis === 'y' ? 'height' : 'width';
const primary_property_value = parseFloat(style[primary_property]);
const secondary_properties = axis === 'y' ? ['top', 'bottom'] : ['left', 'right'];
const capitalized_secondary_properties = secondary_properties.map(
(e) => `${e[0].toUpperCase()}${e.slice(1)}`
);
const padding_start_value = parseFloat(style[`padding${capitalized_secondary_properties[0]}`]);
const padding_end_value = parseFloat(style[`padding${capitalized_secondary_properties[1]}`]);
const margin_start_value = parseFloat(style[`margin${capitalized_secondary_properties[0]}`]);
const margin_end_value = parseFloat(style[`margin${capitalized_secondary_properties[1]}`]);
const border_width_start_value = parseFloat(
style[`border${capitalized_secondary_properties[0]}Width`]
);
const border_width_end_value = parseFloat(
style[`border${capitalized_secondary_properties[1]}Width`]
);
return {
delay,
duration,
easing: easing$1,
css: (t) =>
'overflow: hidden;' +
`opacity: ${Math.min(t * 20, 1) * opacity};` +
`${primary_property}: ${t * primary_property_value}px;` +
`padding-${secondary_properties[0]}: ${t * padding_start_value}px;` +
`padding-${secondary_properties[1]}: ${t * padding_end_value}px;` +
`margin-${secondary_properties[0]}: ${t * margin_start_value}px;` +
`margin-${secondary_properties[1]}: ${t * margin_end_value}px;` +
`border-${secondary_properties[0]}-width: ${t * border_width_start_value}px;` +
`border-${secondary_properties[1]}-width: ${t * border_width_end_value}px;`
};
}
/**
* @param {Element} node
* @param {import('./public').ScaleParams} [params]
* @returns {import('./public').TransitionConfig}
*/
function scale(
node,
{ delay = 0, duration = 400, easing: easing$1 = easing.cubicOut, start = 0, opacity = 0 } = {}
) {
const style = getComputedStyle(node);
const target_opacity = +style.opacity;
const transform = style.transform === 'none' ? '' : style.transform;
const sd = 1 - start;
const od = target_opacity * (1 - opacity);
return {
delay,
duration,
easing: easing$1,
css: (_t, u) => `
transform: ${transform} scale(${1 - sd * u});
opacity: ${target_opacity - od * u}
`
};
}
/**
* @param {SVGElement & { getTotalLength(): number }} node
* @param {import('./public').DrawParams} [params]
* @returns {import('./public').TransitionConfig}
*/
function draw(node, { delay = 0, speed, duration, easing: easing$1 = easing.cubicInOut } = {}) {
let len = node.getTotalLength();
const style = getComputedStyle(node);
if (style.strokeLinecap !== 'butt') {
len += parseInt(style.strokeWidth);
}
if (duration === undefined) {
if (speed === undefined) {
duration = 800;
} else {
duration = len / speed;
}
} else if (typeof duration === 'function') {
duration = duration(len);
}
return {
delay,
duration,
easing: easing$1,
css: (_, u) => `
stroke-dasharray: ${len};
stroke-dashoffset: ${u * len};
`
};
}
/**
* @param {import('./public').CrossfadeParams & {
* fallback?: (node: Element, params: import('./public').CrossfadeParams, intro: boolean) => import('./public').TransitionConfig;
* }} params
* @returns {[(node: any, params: import('./public').CrossfadeParams & { key: any; }) => () => import('./public').TransitionConfig, (node: any, params: import('./public').CrossfadeParams & { key: any; }) => () => import('./public').TransitionConfig]}
*/
function crossfade({ fallback, ...defaults }) {
/** @type {Map<any, Element>} */
const to_receive = new Map();
/** @type {Map<any, Element>} */
const to_send = new Map();
/**
* @param {Element} from_node
* @param {Element} node
* @param {import('./public').CrossfadeParams} params
* @returns {import('./public').TransitionConfig}
*/
function crossfade(from_node, node, params) {
const {
delay = 0,
duration = (d) => Math.sqrt(d) * 30,
easing: easing$1 = easing.cubicOut
} = Component.assign(Component.assign({}, defaults), params);
const from = from_node.getBoundingClientRect();
const to = node.getBoundingClientRect();
const dx = from.left - to.left;
const dy = from.top - to.top;
const dw = from.width / to.width;
const dh = from.height / to.height;
const d = Math.sqrt(dx * dx + dy * dy);
const style = getComputedStyle(node);
const transform = style.transform === 'none' ? '' : style.transform;
const opacity = +style.opacity;
return {
delay,
duration: Component.is_function(duration) ? duration(d) : duration,
easing: easing$1,
css: (t, u) => `
opacity: ${t * opacity};
transform-origin: top left;
transform: ${transform} translate(${u * dx}px,${u * dy}px) scale(${t + (1 - t) * dw}, ${
t + (1 - t) * dh
});
`
};
}
/**
* @param {Map<any, Element>} items
* @param {Map<any, Element>} counterparts
* @param {boolean} intro
* @returns {(node: any, params: import('./public').CrossfadeParams & { key: any; }) => () => import('./public').TransitionConfig}
*/
function transition(items, counterparts, intro) {
return (node, params) => {
items.set(params.key, node);
return () => {
if (counterparts.has(params.key)) {
const other_node = counterparts.get(params.key);
counterparts.delete(params.key);
return crossfade(other_node, node, params);
}
// if the node is disappearing altogether
// (i.e. wasn't claimed by the other list)
// then we need to supply an outro
items.delete(params.key);
return fallback && fallback(node, params, intro);
};
};
}
return [transition(to_send, to_receive, false), transition(to_receive, to_send, true)];
}
exports.blur = blur;
exports.crossfade = crossfade;
exports.draw = draw;
exports.fade = fade;
exports.fly = fly;
exports.scale = scale;
exports.slide = slide;