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mnote/rust/crates/mnote-web/browser/document-slash-position-runtime.js
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JavaScript

const ROOT_SELECTOR = '[data-testid="mnote-leptos-tiptap-island-editor-root"]';
export const activeEditorRootForSlashMenu = () => {
const selection = window.getSelection();
const anchorNode = selection?.anchorNode || null;
const anchorElement = anchorNode && anchorNode.nodeType === Node.ELEMENT_NODE
? anchorNode
: anchorNode?.parentElement || null;
const roots = Array.from(document.querySelectorAll(ROOT_SELECTOR)).filter((node) => (
node instanceof HTMLElement
&& node.offsetParent !== null
&& node.getAttribute('data-mnote-side-target-unsupported') !== 'true'
));
const intendedRoot = window.__mnoteIntendedSlashRoot instanceof HTMLElement
&& roots.includes(window.__mnoteIntendedSlashRoot)
? window.__mnoteIntendedSlashRoot
: null;
if (intendedRoot) return intendedRoot;
const focused = document.activeElement instanceof Element
? roots.find((root) => root.contains(document.activeElement))
: null;
if (focused) return focused;
if (anchorElement instanceof Element) {
const activeRoot = roots.find((root) => root.contains(anchorElement));
if (activeRoot) return activeRoot;
}
return roots.find((root) => root.querySelector('.ProseMirror:focus-within')) || roots[0] || null;
};
export const markIntendedSlashRoot = (entry) => {
const root = entry?.view?.runtimeDescriptor?.root;
if (!(root instanceof HTMLElement) || !root.isConnected) return;
window.__mnoteIntendedSlashRoot = root;
hideSlashMenusOutsideRoot(root);
scheduleSlashMenuPosition(root);
};
export const slashMenuAnchorFromSelection = (root) => {
const currentBlockFromSelection = () => {
try {
const selection = window.getSelection();
const anchorNode = selection?.anchorNode || null;
const editor = root.querySelector('.ProseMirror');
const anchorElement = anchorNode && anchorNode.nodeType === Node.ELEMENT_NODE
? anchorNode
: anchorNode?.parentElement || null;
if (!(editor instanceof HTMLElement) || !(anchorElement instanceof Element) || !editor.contains(anchorElement)) return null;
let current = anchorElement;
while (current && current.parentElement && current.parentElement !== editor) {
current = current.parentElement;
}
return current instanceof HTMLElement && current.parentElement === editor ? current : null;
} catch (_) {
return null;
}
};
const fallback = () => {
const editor = root.querySelector('.ProseMirror');
if (editor instanceof HTMLElement) {
const block = currentBlockFromSelection()
|| Array.from(editor.children).find((node) => node instanceof HTMLElement && node.matches(':focus-within, .ProseMirror-selectednode'))
|| Array.from(editor.children).find((node) => node instanceof HTMLElement && node.getBoundingClientRect().height > 0);
if (block instanceof HTMLElement) {
const rect = block.getBoundingClientRect();
return { top: rect.bottom + 8, left: rect.left, anchorTop: rect.top };
}
}
const rect = root.getBoundingClientRect();
return { top: rect.top + 24, left: rect.left + 24, anchorTop: rect.top + 24 };
};
try {
const selection = window.getSelection();
if (!selection || selection.rangeCount <= 0) return fallback();
const anchorNode = selection.anchorNode;
if (anchorNode && !root.contains(anchorNode.nodeType === Node.ELEMENT_NODE ? anchorNode : anchorNode.parentElement)) {
return fallback();
}
const rect = selection.getRangeAt(0).getBoundingClientRect();
if (rect && (rect.top > 0 || rect.left > 0 || rect.height > 0)) {
return { top: rect.bottom + 8, left: rect.left, anchorTop: rect.top };
}
} catch (_) {}
return fallback();
};
export const setSlashMenuInactive = (menu, inactive) => {
if (!(menu instanceof HTMLElement)) return;
if (inactive) {
if (menu.getAttribute('data-mnote-slash-inactive') !== 'true') {
menu.setAttribute('data-mnote-slash-inactive', 'true');
}
if (menu.style.display !== 'none') menu.style.display = 'none';
return;
}
if (menu.getAttribute('data-mnote-slash-inactive') === 'true') {
menu.removeAttribute('data-mnote-slash-inactive');
}
if (menu.style.display === 'none') menu.style.display = '';
};
export const setSlashMenuStyle = (menu, property, value) => {
if (!(menu instanceof HTMLElement)) return;
if (menu.style[property] !== value) menu.style[property] = value;
};
export const setSlashMenuAttribute = (menu, name, value) => {
if (!(menu instanceof HTMLElement)) return;
if (menu.getAttribute(name) !== value) menu.setAttribute(name, value);
};
export const hideSlashMenusOutsideRoot = (activeRoot) => {
document.querySelectorAll(`${ROOT_SELECTOR} [data-testid="mnote-leptos-tiptap-slash-menu"]`).forEach((menu) => {
const root = menu.closest(ROOT_SELECTOR);
if (root !== activeRoot) setSlashMenuInactive(menu, true);
});
};
export const positionSlashMenuForRoot = (root) => {
const activeRoot = activeEditorRootForSlashMenu();
if (!(root instanceof HTMLElement)) root = activeRoot;
if (!(root instanceof HTMLElement)) return;
if (activeRoot instanceof HTMLElement && root !== activeRoot) {
const inactiveMenu = root.querySelector('[data-testid="mnote-leptos-tiptap-slash-menu"]');
setSlashMenuInactive(inactiveMenu, true);
hideSlashMenusOutsideRoot(activeRoot);
return;
}
hideSlashMenusOutsideRoot(root);
const menu = root.querySelector('[data-testid="mnote-leptos-tiptap-slash-menu"]');
if (!(menu instanceof HTMLElement)) return;
setSlashMenuInactive(menu, false);
const anchor = slashMenuAnchorFromSelection(root);
const gap = 8;
const menuWidth = Math.min(316, Math.max(160, window.innerWidth - 16));
const menuHeight = Math.min(430, Math.max(120, window.innerHeight - 16));
const left = Math.min(Math.max(gap, anchor.left), Math.max(gap, window.innerWidth - menuWidth - gap));
const belowTop = Math.min(Math.max(gap, anchor.top), Math.max(gap, window.innerHeight - 120));
let top = belowTop + menuHeight > window.innerHeight - gap
? Math.min(Math.max(gap, anchor.anchorTop - menuHeight - gap), Math.max(gap, window.innerHeight - 120))
: belowTop;
const mindmap = document.querySelector('[data-testid="mnote-mindmap-editor-root"]');
if (mindmap instanceof HTMLElement) {
const mindmapRect = mindmap.getBoundingClientRect();
const overlapsMindmap = top < mindmapRect.bottom && top + menuHeight > mindmapRect.top;
if (overlapsMindmap && mindmapRect.bottom > window.innerHeight - 48) {
top = Math.max(top, Math.max(gap, window.innerHeight - menuHeight - gap));
} else if (overlapsMindmap && mindmapRect.bottom + menuHeight + gap <= window.innerHeight) {
top = mindmapRect.bottom + gap;
}
}
setSlashMenuStyle(menu, 'position', 'fixed');
setSlashMenuStyle(menu, 'zIndex', '130');
setSlashMenuStyle(menu, 'left', `${Math.round(left)}px`);
setSlashMenuStyle(menu, 'top', `${Math.round(top)}px`);
setSlashMenuStyle(menu, 'width', `min(316px, calc(100vw - 16px))`);
setSlashMenuStyle(menu, 'maxHeight', `min(430px, calc(100vh - 16px))`);
setSlashMenuAttribute(menu, 'data-mnote-slash-positioned', 'host');
};
export let pendingSlashMenuPositionFrame = 0;
export let pendingSlashMenuPositionRoot = null;
export const scheduleSlashMenuPosition = (root) => {
if (root instanceof HTMLElement) pendingSlashMenuPositionRoot = root;
if (pendingSlashMenuPositionFrame) return;
pendingSlashMenuPositionFrame = window.requestAnimationFrame(() => {
const targetRoot = pendingSlashMenuPositionRoot;
pendingSlashMenuPositionFrame = 0;
pendingSlashMenuPositionRoot = null;
positionSlashMenuForRoot(targetRoot);
});
};
export const shouldReactToSlashMenuMutation = (records, root) => {
if (!Array.isArray(records) || !(root instanceof HTMLElement)) return false;
return records.some((record) => {
const target = record && record.target instanceof HTMLElement ? record.target : null;
if (!target || !root.contains(target) && target !== root) return false;
if (record.type === 'attributes') {
return record.attributeName !== 'style' && record.attributeName !== 'data-mnote-slash-positioned' && record.attributeName !== 'data-mnote-slash-inactive';
}
if (record.type === 'childList') {
return Array.from(record.addedNodes || []).some((node) => node instanceof HTMLElement && node.closest('[data-testid="mnote-leptos-tiptap-slash-menu"]'))
|| Array.from(record.removedNodes || []).some((node) => node instanceof HTMLElement && node.closest('[data-testid="mnote-leptos-tiptap-slash-menu"]'));
}
return true;
});
};
export const scheduleGlobalSlashMenuPosition = () => {
scheduleSlashMenuPosition(activeEditorRootForSlashMenu());
};
export const installGlobalSlashMenuPositioning = () => {
if (window.__MNOTE_SLASH_MENU_POSITIONING_INSTALLED__) return;
window.__MNOTE_SLASH_MENU_POSITIONING_INSTALLED__ = true;
if (typeof MutationObserver === 'function' && document.body instanceof HTMLElement) {
const observer = new MutationObserver(() => scheduleGlobalSlashMenuPosition());
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class', 'hidden'] });
}
document.addEventListener('keydown', (event) => {
if (event.key === '/') scheduleGlobalSlashMenuPosition();
}, true);
document.addEventListener('selectionchange', () => scheduleGlobalSlashMenuPosition(), true);
window.addEventListener('resize', scheduleGlobalSlashMenuPosition);
window.addEventListener('scroll', scheduleGlobalSlashMenuPosition, true);
};
export const observeSlashMenuPosition = (view) => {
const root = view.runtimeDescriptor.root;
if (!(root instanceof HTMLElement) || typeof MutationObserver !== 'function') return;
const observer = new MutationObserver((records) => {
if (!view.disposed && shouldReactToSlashMenuMutation(records, root)) {
scheduleSlashMenuPosition(root);
}
});
observer.observe(root, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'hidden', 'class', 'data-mnote-slash-positioned', 'data-mnote-slash-inactive'] });
view.disconnectSlashObserver = () => observer.disconnect();
};