first commit
This commit is contained in:
rionzhao
+255
@@ -0,0 +1,255 @@
|
||||
import { cubicOut, cubicInOut, linear } from '../easing/index.js';
|
||||
import { assign, split_css_unit, is_function } from '../internal/index.js';
|
||||
|
||||
/**
|
||||
* Animates a `blur` filter alongside an element's opacity.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#blur
|
||||
* @param {Element} node
|
||||
* @param {import('./public').BlurParams} [params]
|
||||
* @returns {import('./public').TransitionConfig}
|
||||
*/
|
||||
export function blur(
|
||||
node,
|
||||
{ delay = 0, duration = 400, 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] = split_css_unit(amount);
|
||||
return {
|
||||
delay,
|
||||
duration,
|
||||
easing,
|
||||
css: (_t, u) => `opacity: ${target_opacity - od * u}; filter: ${f} blur(${u * value}${unit});`
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Animates the opacity of an element from 0 to the current opacity for `in` transitions and from the current opacity to 0 for `out` transitions.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#fade
|
||||
* @param {Element} node
|
||||
* @param {import('./public').FadeParams} [params]
|
||||
* @returns {import('./public').TransitionConfig}
|
||||
*/
|
||||
export function fade(node, { delay = 0, duration = 400, easing = linear } = {}) {
|
||||
const o = +getComputedStyle(node).opacity;
|
||||
return {
|
||||
delay,
|
||||
duration,
|
||||
easing,
|
||||
css: (t) => `opacity: ${t * o}`
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Animates the x and y positions and the opacity of an element. `in` transitions animate from the provided values, passed as parameters to the element's default values. `out` transitions animate from the element's default values to the provided values.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#fly
|
||||
* @param {Element} node
|
||||
* @param {import('./public').FlyParams} [params]
|
||||
* @returns {import('./public').TransitionConfig}
|
||||
*/
|
||||
export function fly(
|
||||
node,
|
||||
{ delay = 0, duration = 400, 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] = split_css_unit(x);
|
||||
const [yValue, yUnit] = split_css_unit(y);
|
||||
return {
|
||||
delay,
|
||||
duration,
|
||||
easing,
|
||||
css: (t, u) => `
|
||||
transform: ${transform} translate(${(1 - t) * xValue}${xUnit}, ${(1 - t) * yValue}${yUnit});
|
||||
opacity: ${target_opacity - od * u}`
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Slides an element in and out.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#slide
|
||||
* @param {Element} node
|
||||
* @param {import('./public').SlideParams} [params]
|
||||
* @returns {import('./public').TransitionConfig}
|
||||
*/
|
||||
export function slide(node, { delay = 0, duration = 400, easing = cubicOut, axis = 'y' } = {}) {
|
||||
const style = getComputedStyle(node);
|
||||
const opacity = +style.opacity;
|
||||
const primary_property = axis === 'y' ? 'height' : 'width';
|
||||
const primary_property_value = parseFloat(style[primary_property]);
|
||||
const secondary_properties = axis === 'y' ? ['top', 'bottom'] : ['left', 'right'];
|
||||
const capitalized_secondary_properties = secondary_properties.map(
|
||||
(e) => `${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,
|
||||
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;`
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Animates the opacity and scale of an element. `in` transitions animate from an element's current (default) values to the provided values, passed as parameters. `out` transitions animate from the provided values to an element's default values.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#scale
|
||||
* @param {Element} node
|
||||
* @param {import('./public').ScaleParams} [params]
|
||||
* @returns {import('./public').TransitionConfig}
|
||||
*/
|
||||
export function scale(
|
||||
node,
|
||||
{ delay = 0, duration = 400, 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,
|
||||
css: (_t, u) => `
|
||||
transform: ${transform} scale(${1 - sd * u});
|
||||
opacity: ${target_opacity - od * u}
|
||||
`
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Animates the stroke of an SVG element, like a snake in a tube. `in` transitions begin with the path invisible and draw the path to the screen over time. `out` transitions start in a visible state and gradually erase the path. `draw` only works with elements that have a `getTotalLength` method, like `<path>` and `<polyline>`.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#draw
|
||||
* @param {SVGElement & { getTotalLength(): number }} node
|
||||
* @param {import('./public').DrawParams} [params]
|
||||
* @returns {import('./public').TransitionConfig}
|
||||
*/
|
||||
export function draw(node, { delay = 0, speed, duration, 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,
|
||||
css: (_, u) => `
|
||||
stroke-dasharray: ${len};
|
||||
stroke-dashoffset: ${u * len};
|
||||
`
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* The `crossfade` function creates a pair of [transitions](https://svelte.dev/docs#template-syntax-element-directives-transition-fn) called `send` and `receive`. When an element is 'sent', it looks for a corresponding element being 'received', and generates a transition that transforms the element to its counterpart's position and fades it out. When an element is 'received', the reverse happens. If there is no counterpart, the `fallback` transition is used.
|
||||
*
|
||||
* https://svelte.dev/docs/svelte-transition#crossfade
|
||||
* @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]}
|
||||
*/
|
||||
export 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 = cubicOut
|
||||
} = assign(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: is_function(duration) ? duration(d) : duration,
|
||||
easing,
|
||||
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)];
|
||||
}
|
||||
Reference in New Issue
Block a user