Current File : /home/vacivi36/.trash/vacivitta/node_modules/framer-motion/dist/es/projection/shared/stack.mjs
import { addUniqueItem, removeItem } from 'motion-utils';
class NodeStack {
constructor() {
this.members = [];
}
add(node) {
addUniqueItem(this.members, node);
node.scheduleRender();
}
remove(node) {
removeItem(this.members, node);
if (node === this.prevLead) {
this.prevLead = undefined;
}
if (node === this.lead) {
const prevLead = this.members[this.members.length - 1];
if (prevLead) {
this.promote(prevLead);
}
}
}
relegate(node) {
const indexOfNode = this.members.findIndex((member) => node === member);
if (indexOfNode === 0)
return false;
/**
* Find the next projection node that is present
*/
let prevLead;
for (let i = indexOfNode; i >= 0; i--) {
const member = this.members[i];
if (member.isPresent !== false) {
prevLead = member;
break;
}
}
if (prevLead) {
this.promote(prevLead);
return true;
}
else {
return false;
}
}
promote(node, preserveFollowOpacity) {
const prevLead = this.lead;
if (node === prevLead)
return;
this.prevLead = prevLead;
this.lead = node;
node.show();
if (prevLead) {
prevLead.instance && prevLead.scheduleRender();
node.scheduleRender();
node.resumeFrom = prevLead;
if (preserveFollowOpacity) {
node.resumeFrom.preserveOpacity = true;
}
if (prevLead.snapshot) {
node.snapshot = prevLead.snapshot;
node.snapshot.latestValues =
prevLead.animationValues || prevLead.latestValues;
}
if (node.root && node.root.isUpdating) {
node.isLayoutDirty = true;
}
const { crossfade } = node.options;
if (crossfade === false) {
prevLead.hide();
}
/**
* TODO:
* - Test border radius when previous node was deleted
* - boxShadow mixing
* - Shared between element A in scrolled container and element B (scroll stays the same or changes)
* - Shared between element A in transformed container and element B (transform stays the same or changes)
* - Shared between element A in scrolled page and element B (scroll stays the same or changes)
* ---
* - Crossfade opacity of root nodes
* - layoutId changes after animation
* - layoutId changes mid animation
*/
}
}
exitAnimationComplete() {
this.members.forEach((node) => {
const { options, resumingFrom } = node;
options.onExitComplete && options.onExitComplete();
if (resumingFrom) {
resumingFrom.options.onExitComplete &&
resumingFrom.options.onExitComplete();
}
});
}
scheduleRender() {
this.members.forEach((node) => {
node.instance && node.scheduleRender(false);
});
}
/**
* Clear any leads that have been removed this render to prevent them from being
* used in future animations and to prevent memory leaks
*/
removeLeadSnapshot() {
if (this.lead && this.lead.snapshot) {
this.lead.snapshot = undefined;
}
}
}
export { NodeStack };
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