@wordpress/editor
Version:
Enhanced block editor for WordPress posts.
76 lines (75 loc) • 2.66 kB
JavaScript
// packages/editor/src/components/visual-editor/use-select-nearest-editable-block.js
import { useRefEffect } from "@wordpress/compose";
import { useSelect, useDispatch } from "@wordpress/data";
import { store as blockEditorStore } from "@wordpress/block-editor";
import { unlock } from "../../lock-unlock.mjs";
var DISTANCE_THRESHOLD = 500;
function clamp(value, min, max) {
return Math.min(Math.max(value, min), max);
}
function distanceFromRect(x, y, rect) {
const dx = x - clamp(x, rect.left, rect.right);
const dy = y - clamp(y, rect.top, rect.bottom);
return Math.sqrt(dx * dx + dy * dy);
}
function useSelectNearestEditableBlock({
isEnabled = true
} = {}) {
const { getEnabledClientIdsTree, getBlockName, getBlockOrder } = unlock(
useSelect(blockEditorStore)
);
const { selectBlock } = useDispatch(blockEditorStore);
return useRefEffect(
(element) => {
if (!isEnabled) {
return;
}
const selectNearestEditableBlock = (x, y) => {
const editableBlockClientIds = getEnabledClientIdsTree().flatMap(({ clientId }) => {
const blockName = getBlockName(clientId);
if (blockName === "core/template-part") {
return [];
}
if (blockName === "core/post-content") {
const innerBlocks = getBlockOrder(clientId);
if (innerBlocks.length) {
return innerBlocks;
}
}
return [clientId];
});
let nearestDistance = Infinity, nearestClientId = null;
for (const clientId of editableBlockClientIds) {
const block = element.querySelector(
`[data-block="${clientId}"]`
);
if (!block) {
continue;
}
const rect = block.getBoundingClientRect();
const distance = distanceFromRect(x, y, rect);
if (distance < nearestDistance && distance < DISTANCE_THRESHOLD) {
nearestDistance = distance;
nearestClientId = clientId;
}
}
if (nearestClientId) {
selectBlock(nearestClientId);
}
};
const handleClick = (event) => {
const shouldSelect = event.target === element || event.target.classList.contains("is-root-container");
if (shouldSelect) {
selectNearestEditableBlock(event.clientX, event.clientY);
}
};
element.addEventListener("click", handleClick);
return () => element.removeEventListener("click", handleClick);
},
[isEnabled]
);
}
export {
useSelectNearestEditableBlock as default
};
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