{"version":3,"file":"content.min.js","sources":["../../../javascript/content/editor/item.js","../../../javascript/content/editor/container.js","../../../javascript/content/editor/rules_engine.js","../../../javascript/content/editor/container_controller.js","../../../javascript/content/editor/list_controller.js","../../../javascript/content/editor/trix_controller.js","../../../javascript/content/application.js","../../../javascript/content/editor/item_controller.js","../../../javascript/content/editor/new_item_controller.js","../../../javascript/content/editor/status_bar_controller.js","../../../javascript/content/editor/table_controller.js"],"sourcesContent":["export default class Item {\n /**\n * Sort items by their index.\n *\n * @param a {Item}\n * @param b {Item}\n * @returns {number}\n */\n static comparator(a, b) {\n return a.index - b.index;\n }\n\n /**\n * @param node {Element} li[data-content-index]\n */\n constructor(node) {\n this.node = node;\n }\n\n /**\n * @returns {String} id of the node's item (from data attributes)\n */\n get itemId() {\n return this.node.dataset[`contentItemId`];\n }\n\n get #itemIdInput() {\n return this.node.querySelector(`input[name$=\"[id]\"]`);\n }\n\n /**\n * @param itemId {String} id\n */\n set itemId(id) {\n if (this.itemId === id) return;\n\n this.node.dataset[`contentItemId`] = `${id}`;\n this.#itemIdInput.value = `${id}`;\n }\n\n /**\n * @returns {number} logical nesting depth of node in container\n */\n get depth() {\n return parseInt(this.node.dataset[`contentDepth`]) || 0;\n }\n\n get #depthInput() {\n return this.node.querySelector(`input[name$=\"[depth]\"]`);\n }\n\n /**\n * @param depth {number} depth >= 0\n */\n set depth(depth) {\n if (this.depth === depth) return;\n\n this.node.dataset[`contentDepth`] = `${depth}`;\n this.#depthInput.value = `${depth}`;\n }\n\n /**\n * @returns {number} logical index of node in container (pre-order traversal)\n */\n get index() {\n return parseInt(this.node.dataset[`contentIndex`]);\n }\n\n get #indexInput() {\n return this.node.querySelector(`input[name$=\"[index]\"]`);\n }\n\n /**\n * @param index {number} index >= 0\n */\n set index(index) {\n if (this.index === index) return;\n\n this.node.dataset[`contentIndex`] = `${index}`;\n this.#indexInput.value = `${index}`;\n }\n\n /**\n * @returns {boolean} true if this item can have children\n */\n get isLayout() {\n return this.node.hasAttribute(\"data-content-layout\");\n }\n\n /**\n * @returns {Item} nearest neighbour (index - 1)\n */\n get previousItem() {\n let sibling = this.node.previousElementSibling;\n if (sibling) return new Item(sibling);\n }\n\n /**\n * @returns {Item} nearest neighbour (index + 1)\n */\n get nextItem() {\n let sibling = this.node.nextElementSibling;\n if (sibling) return new Item(sibling);\n }\n\n /**\n * @returns {boolean} true if this item has any collapsed children\n */\n hasCollapsedDescendants() {\n let childrenList = this.#childrenListElement;\n return !!childrenList && childrenList.children.length > 0;\n }\n\n /**\n * @returns {boolean} true if this item has any expanded children\n */\n hasExpandedDescendants() {\n let sibling = this.nextItem;\n return !!sibling && sibling.depth > this.depth;\n }\n\n /**\n * Recursively traverse the node and its descendants.\n *\n * @callback {Item}\n */\n traverse(callback) {\n // capture descendants before traversal in case of side-effects\n // specifically, setting depth affects calculation\n const expanded = this.#expandedDescendants;\n\n callback(this);\n this.#traverseCollapsed(callback);\n expanded.forEach((item) => item.#traverseCollapsed(callback));\n }\n\n /**\n * Recursively traverse the node's collapsed descendants, if any.\n *\n * @callback {Item}\n */\n #traverseCollapsed(callback) {\n if (!this.hasCollapsedDescendants()) return;\n\n this.#collapsedDescendants.forEach((item) => {\n callback(item);\n item.#traverseCollapsed(callback);\n });\n }\n\n /**\n * Move the given item into this element's hidden children list.\n * Assumes the list already exists.\n *\n * @param item {Item}\n */\n collapseChild(item) {\n this.#childrenListElement.appendChild(item.node);\n }\n\n /**\n * Collapses visible (logical) children into this element's hidden children\n * list, creating it if it doesn't already exist.\n */\n collapse() {\n let listElement = this.#childrenListElement;\n\n if (!listElement) listElement = createChildrenList(this.node);\n\n this.#expandedDescendants.forEach((child) =>\n listElement.appendChild(child.node),\n );\n }\n\n /**\n * Moves any collapsed children back into the parent container.\n */\n expand() {\n if (!this.hasCollapsedDescendants()) return;\n\n Array.from(this.#childrenListElement.children)\n .reverse()\n .forEach((node) => {\n this.node.insertAdjacentElement(\"afterend\", node);\n });\n }\n\n /**\n * Sets the state of a given rule on the target node.\n *\n * @param rule {String}\n * @param deny {boolean}\n */\n toggleRule(rule, deny = false) {\n if (this.node.dataset.hasOwnProperty(rule) && !deny) {\n delete this.node.dataset[rule];\n }\n if (!this.node.dataset.hasOwnProperty(rule) && deny) {\n this.node.dataset[rule] = \"\";\n }\n\n if (rule === \"denyDrag\") {\n if (!this.node.hasAttribute(\"draggable\") && !deny) {\n this.node.setAttribute(\"draggable\", \"true\");\n }\n if (this.node.hasAttribute(\"draggable\") && deny) {\n this.node.removeAttribute(\"draggable\");\n }\n }\n }\n\n /**\n * Detects turbo item changes by comparing the dataset id with the input\n */\n hasItemIdChanged() {\n return !(this.#itemIdInput.value === this.itemId);\n }\n\n /**\n * Updates inputs, in case they don't match the data values, e.g., when the\n * nested inputs have been hot-swapped by turbo with data from the server.\n *\n * Updates itemId from input as that is the canonical source.\n */\n updateAfterChange() {\n this.itemId = this.#itemIdInput.value;\n this.#indexInput.value = this.index;\n this.#depthInput.value = this.depth;\n }\n\n /**\n * Finds the dom container for storing collapsed (hidden) children, if present.\n *\n * @returns {Element} ol[data-content-children]\n */\n get #childrenListElement() {\n return this.node.querySelector(`:scope > [data-content-children]`);\n }\n\n /**\n * @returns {Item[]} all items that follow this element that have a greater depth.\n */\n get #expandedDescendants() {\n const descendants = [];\n\n let sibling = this.nextItem;\n while (sibling && sibling.depth > this.depth) {\n descendants.push(sibling);\n sibling = sibling.nextItem;\n }\n\n return descendants;\n }\n\n /**\n * @returns {Item[]} all items directly contained inside this element's hidden children element.\n */\n get #collapsedDescendants() {\n if (!this.hasCollapsedDescendants()) return [];\n\n return Array.from(this.#childrenListElement.children).map(\n (node) => new Item(node),\n );\n }\n}\n\n/**\n * Finds or creates a dom container for storing collapsed (hidden) children.\n *\n * @param node {Element} li[data-content-index]\n * @returns {Element} ol[data-content-children]\n */\nfunction createChildrenList(node) {\n const childrenList = document.createElement(\"ol\");\n childrenList.setAttribute(\"class\", \"hidden\");\n\n // if objectType is \"rich-content\" set richContentChildren as a data attribute\n childrenList.dataset[`contentChildren`] = \"\";\n\n node.appendChild(childrenList);\n\n return childrenList;\n}\n","import Item from \"./item\";\n\n/**\n * @param nodes {NodeList}\n * @returns {Item[]}\n */\nfunction createItemList(nodes) {\n return Array.from(nodes).map((node) => new Item(node));\n}\n\nexport default class Container {\n /**\n * @param node {Element} content editor list\n */\n constructor(node) {\n this.node = node;\n }\n\n /**\n * @return {Item[]} an ordered list of all items in the container\n */\n get items() {\n return createItemList(this.node.querySelectorAll(\"[data-content-index]\"));\n }\n\n /**\n * @return {String} a serialized description of the structure of the container\n */\n get state() {\n const inputs = this.node.querySelectorAll(\"li input[type=hidden]\");\n return Array.from(inputs)\n .map((e) => e.value)\n .join(\"/\");\n }\n\n /**\n * Set the index of items based on their current position.\n */\n reindex() {\n this.items.map((item, index) => (item.index = index));\n }\n\n /**\n * Resets the order of items to their defined index.\n * Useful after an aborted drag.\n */\n reset() {\n this.items.sort(Item.comparator).forEach((item) => {\n this.node.appendChild(item.node);\n });\n }\n}\n","export default class RulesEngine {\n static rules = [\n \"denyDeNest\",\n \"denyNest\",\n \"denyCollapse\",\n \"denyExpand\",\n \"denyRemove\",\n \"denyDrag\",\n \"denyEdit\",\n ];\n\n constructor(debug = false) {\n if (debug) {\n this.debug = (...args) => console.log(...args);\n } else {\n this.debug = () => {};\n }\n }\n\n /**\n * Enforce structural rules to ensure that the given item is currently in a\n * valid state.\n *\n * @param {Item} item\n */\n normalize(item) {\n // structural rules enforce a valid tree structure\n this.firstItemDepthZero(item);\n this.depthMustBeSet(item);\n this.itemCannotHaveInvalidDepth(item);\n this.parentMustBeLayout(item);\n this.parentCannotHaveExpandedAndCollapsedChildren(item);\n }\n\n /**\n * Apply rules to the given item to determine what operations are permitted.\n *\n * @param {Item} item\n */\n update(item) {\n this.rules = {};\n\n // behavioural rules define what the user is allowed to do\n this.parentsCannotDeNest(item);\n this.rootsCannotDeNest(item);\n this.onlyLastItemCanDeNest(item);\n this.nestingNeedsParent(item);\n this.leavesCannotCollapse(item);\n this.needHiddenItemsToExpand(item);\n this.parentsCannotBeDeleted(item);\n this.parentsCannotBeDragged(item);\n\n RulesEngine.rules.forEach((rule) => {\n item.toggleRule(rule, !!this.rules[rule]);\n });\n }\n\n /**\n * First item can't have a parent, so its depth should always be 0\n */\n firstItemDepthZero(item) {\n if (item.index === 0 && item.depth !== 0) {\n this.debug(`enforce depth on item ${item.index}: ${item.depth} => 0`);\n\n item.depth = 0;\n }\n }\n\n /**\n * Every item should have a non-negative depth set.\n *\n * @param {Item} item\n */\n depthMustBeSet(item) {\n if (isNaN(item.depth) || item.depth < 0) {\n this.debug(`unset depth on item ${item.index}: => 0`);\n\n item.depth = 0;\n }\n }\n\n /**\n * Depth must increase stepwise.\n *\n * @param {Item} item\n */\n itemCannotHaveInvalidDepth(item) {\n const previous = item.previousItem;\n if (previous && previous.depth < item.depth - 1) {\n this.debug(\n `invalid depth on item ${item.index}: ${item.depth} => ${\n previous.depth + 1\n }`,\n );\n\n item.depth = previous.depth + 1;\n }\n }\n\n /**\n * Parent item, if any, must be a layout.\n *\n * @param {Item} item\n */\n parentMustBeLayout(item) {\n // if we're the first child, make sure our parent is a layout\n // if we're a sibling, we know the previous item is valid so we must be too\n const previous = item.previousItem;\n if (previous && previous.depth < item.depth && !previous.isLayout) {\n this.debug(\n `invalid parent for item ${item.index}: ${item.depth} => ${previous.depth}`,\n );\n\n item.depth = previous.depth;\n }\n }\n\n /**\n * If a parent has expanded and collapsed children, expand.\n *\n * @param {Item} item\n */\n parentCannotHaveExpandedAndCollapsedChildren(item) {\n if (item.hasCollapsedDescendants() && item.hasExpandedDescendants()) {\n this.debug(`expanding collapsed children of item ${item.index}`);\n\n item.expand();\n }\n }\n\n /**\n * De-nesting an item would create a gap of 2 between itself and its children\n *\n * @param {Item} item\n */\n parentsCannotDeNest(item) {\n if (item.hasExpandedDescendants()) this.#deny(\"denyDeNest\");\n }\n\n /**\n * Item depth can't go below 0.\n *\n * @param {Item} item\n */\n rootsCannotDeNest(item) {\n if (item.depth === 0) this.#deny(\"denyDeNest\");\n }\n\n /**\n * De-nesting an item that has siblings would make it a container.\n *\n * @param {Item} item\n */\n onlyLastItemCanDeNest(item) {\n const next = item.nextItem;\n if (next && next.depth === item.depth && !item.isLayout)\n this.#deny(\"denyDeNest\");\n }\n\n /**\n * If an item doesn't have children it can't be collapsed.\n *\n * @param {Item} item\n */\n leavesCannotCollapse(item) {\n if (!item.hasExpandedDescendants()) this.#deny(\"denyCollapse\");\n }\n\n /**\n * If an item doesn't have any hidden descendants then it can't be expanded.\n *\n * @param {Item} item\n */\n needHiddenItemsToExpand(item) {\n if (!item.hasCollapsedDescendants()) this.#deny(\"denyExpand\");\n }\n\n /**\n * An item can't be nested (indented) if it doesn't have a valid parent.\n *\n * @param {Item} item\n */\n nestingNeedsParent(item) {\n const previous = item.previousItem;\n // no previous, so cannot nest\n if (!previous) this.#deny(\"denyNest\");\n // previous is too shallow, nesting would increase depth too much\n else if (previous.depth < item.depth) this.#deny(\"denyNest\");\n // new parent is not a layout\n else if (previous.depth === item.depth && !previous.isLayout)\n this.#deny(\"denyNest\");\n }\n\n /**\n * An item can't be deleted if it has visible children.\n *\n * @param {Item} item\n */\n parentsCannotBeDeleted(item) {\n if (!item.itemId || item.hasExpandedDescendants()) this.#deny(\"denyRemove\");\n }\n\n /**\n * Items cannot be dragged if they have visible children.\n *\n * @param {Item} item\n */\n parentsCannotBeDragged(item) {\n if (item.hasExpandedDescendants()) this.#deny(\"denyDrag\");\n }\n\n /**\n * Record a deny.\n *\n * @param rule {String}\n */\n #deny(rule) {\n this.rules[rule] = true;\n }\n}\n","import { Controller } from \"@hotwired/stimulus\";\n\nimport Item from \"./item\";\nimport Container from \"./container\";\nimport RulesEngine from \"./rules_engine\";\n\nexport default class ContainerController extends Controller {\n static targets = [\"container\"];\n\n connect() {\n this.state = this.container.state;\n\n this.reindex();\n }\n\n get container() {\n return new Container(this.containerTarget);\n }\n\n reindex() {\n this.container.reindex();\n this.#update();\n }\n\n reset() {\n this.container.reset();\n }\n\n drop(event) {\n this.container.reindex(); // set indexes before calculating previous\n\n const item = getEventItem(event);\n const previous = item.previousItem;\n\n let delta = 0;\n if (previous === undefined) {\n // if previous does not exist, set depth to 0\n delta = -item.depth;\n } else if (\n previous.isLayout &&\n item.nextItem &&\n item.nextItem.depth > previous.depth\n ) {\n // if previous is a layout and next is a child of previous, make item a child of previous\n delta = previous.depth - item.depth + 1;\n } else {\n // otherwise, make item a sibling of previous\n delta = previous.depth - item.depth;\n }\n\n item.traverse((child) => {\n child.depth += delta;\n });\n\n this.#update();\n event.preventDefault();\n }\n\n remove(event) {\n const item = getEventItem(event);\n\n item.node.remove();\n\n this.#update();\n event.preventDefault();\n }\n\n nest(event) {\n const item = getEventItem(event);\n\n item.traverse((child) => {\n child.depth += 1;\n });\n\n this.#update();\n event.preventDefault();\n }\n\n deNest(event) {\n const item = getEventItem(event);\n\n item.traverse((child) => {\n child.depth -= 1;\n });\n\n this.#update();\n event.preventDefault();\n }\n\n collapse(event) {\n const item = getEventItem(event);\n\n item.collapse();\n\n this.#update();\n event.preventDefault();\n }\n\n expand(event) {\n const item = getEventItem(event);\n\n item.expand();\n\n this.#update();\n event.preventDefault();\n }\n\n /**\n * Re-apply rules to items to enable/disable appropriate actions.\n */\n #update() {\n // debounce requests to ensure that we only update once per tick\n this.updateRequested = true;\n setTimeout(() => {\n if (!this.updateRequested) return;\n\n this.updateRequested = false;\n const engine = new RulesEngine();\n this.container.items.forEach((item) => engine.normalize(item));\n this.container.items.forEach((item) => engine.update(item));\n\n this.#notifyChange();\n }, 0);\n }\n\n #notifyChange() {\n this.dispatch(\"change\", {\n bubbles: true,\n prefix: \"content\",\n detail: { dirty: this.#isDirty() },\n });\n }\n\n #isDirty() {\n return this.container.state !== this.state;\n }\n}\n\nfunction getEventItem(event) {\n return new Item(event.target.closest(\"[data-content-item]\"));\n}\n","import { Controller } from \"@hotwired/stimulus\";\n\nexport default class ListController extends Controller {\n connect() {\n this.enterCount = 0;\n }\n\n /**\n * When the user starts a drag within the list, set the item's dataTransfer\n * properties to indicate that it's being dragged and update its style.\n *\n * We delay setting the dataset property until the next animation frame\n * so that the style updates can be computed before the drag begins.\n *\n * @param event {DragEvent}\n */\n dragstart(event) {\n if (this.element !== event.target.parentElement) return;\n\n const target = event.target;\n event.dataTransfer.effectAllowed = \"move\";\n\n // update element style after drag has begun\n requestAnimationFrame(() => (target.dataset.dragging = \"\"));\n }\n\n /**\n * When the user drags an item over another item in the last, swap the\n * dragging item with the item under the cursor.\n *\n * As a special case, if the item is dragged over placeholder space at the end\n * of the list, move the item to the bottom of the list instead. This allows\n * users to hit the list element more easily when adding new items to an empty\n * list.\n *\n * @param event {DragEvent}\n */\n dragover(event) {\n const item = this.dragItem;\n if (!item) return;\n\n swap(dropTarget(event.target), item);\n\n event.preventDefault();\n return true;\n }\n\n /**\n * When the user drags an item into the list, create a placeholder item to\n * represent the new item. Note that we can't access the drag data\n * until drop, so we assume that this is our template item for now.\n *\n * Users can cancel the drag by dragging the item out of the list or by\n * pressing escape. Both are handled by `cancelDrag`.\n *\n * @param event {DragEvent}\n */\n dragenter(event) {\n event.preventDefault();\n\n // Safari doesn't support relatedTarget, so we count enter/leave pairs\n this.enterCount++;\n\n if (copyAllowed(event) && !this.dragItem) {\n const item = document.createElement(\"li\");\n item.dataset.dragging = \"\";\n item.dataset.newItem = \"\";\n this.element.appendChild(item);\n }\n }\n\n /**\n * When the user drags the item out of the list, remove the placeholder.\n * This allows users to cancel the drag by dragging the item out of the list.\n *\n * @param event {DragEvent}\n */\n dragleave(event) {\n // Safari doesn't support relatedTarget, so we count enter/leave pairs\n // https://bugs.webkit.org/show_bug.cgi?id=66547\n this.enterCount--;\n\n if (\n this.enterCount <= 0 &&\n this.dragItem.dataset.hasOwnProperty(\"newItem\")\n ) {\n this.dragItem.remove();\n this.reset();\n }\n }\n\n /**\n * When the user drops an item into the list, end the drag and reindex the list.\n *\n * If the item is a new item, we replace the placeholder with the template\n * item data from the dataTransfer API.\n *\n * @param event {DragEvent}\n */\n drop(event) {\n let item = this.dragItem;\n\n if (!item) return;\n\n event.preventDefault();\n delete item.dataset.dragging;\n swap(dropTarget(event.target), item);\n\n if (item.dataset.hasOwnProperty(\"newItem\")) {\n const placeholder = item;\n const template = document.createElement(\"template\");\n template.innerHTML = event.dataTransfer.getData(\"text/html\");\n item = template.content.querySelector(\"li\");\n\n this.element.replaceChild(item, placeholder);\n requestAnimationFrame(() =>\n item.querySelector(\"[role='button'][value='edit']\").click(),\n );\n }\n\n this.dispatch(\"drop\", { target: item, bubbles: true, prefix: \"content\" });\n }\n\n /**\n * End an in-progress drag. If the item is a new item, remove it, otherwise\n * reset the item's style and restore its original position in the list.\n */\n dragend() {\n const item = this.dragItem;\n\n if (!item) {\n } else if (item.dataset.hasOwnProperty(\"newItem\")) {\n item.remove();\n } else {\n delete item.dataset.dragging;\n this.reset();\n }\n }\n\n get isDragging() {\n return !!this.dragItem;\n }\n\n get dragItem() {\n return this.element.querySelector(\"[data-dragging]\");\n }\n\n reindex() {\n this.dispatch(\"reindex\", { bubbles: true, prefix: \"content\" });\n }\n\n reset() {\n this.dispatch(\"reset\", { bubbles: true, prefix: \"content\" });\n }\n}\n\n/**\n * Swaps two list items. If target is a list, the item is appended.\n *\n * @param target the target element to swap with\n * @param item the item the user is dragging\n */\nfunction swap(target, item) {\n if (!target) return;\n if (target === item) return;\n\n if (target.nodeName === \"LI\") {\n const positionComparison = target.compareDocumentPosition(item);\n if (positionComparison & Node.DOCUMENT_POSITION_FOLLOWING) {\n target.insertAdjacentElement(\"beforebegin\", item);\n } else if (positionComparison & Node.DOCUMENT_POSITION_PRECEDING) {\n target.insertAdjacentElement(\"afterend\", item);\n }\n }\n\n if (target.nodeName === \"OL\") {\n target.appendChild(item);\n }\n}\n\n/**\n * Returns true if the event supports copy or copy move.\n *\n * Chrome and Firefox use copy, but Safari only supports copyMove.\n */\nfunction copyAllowed(event) {\n return (\n event.dataTransfer.effectAllowed === \"copy\" ||\n event.dataTransfer.effectAllowed === \"copyMove\"\n );\n}\n\n/**\n * Given an event target, return the closest drop target, if any.\n */\nfunction dropTarget(e) {\n return (\n e &&\n (e.closest(\"[data-controller='content--editor--list'] > *\") ||\n e.closest(\"[data-controller='content--editor--list']\"))\n );\n}\n","import { Controller } from \"@hotwired/stimulus\";\nimport \"trix\";\n\n// Note, action_text 7.1.2 changes how Trix is bundled and loaded. This\n// seems to have broken the default export from trix. This is a workaround\n// that relies on the backwards compatibility of the old export to window.Trix.\nconst Trix = window.Trix;\n\n// Stimulus controller doesn't do anything, but having one ensures that trix\n// will be lazy loaded when a trix-editor is added to the dom.\nexport default class TrixController extends Controller {\n trixInitialize(e) {\n // noop, useful as an extension point for registering behaviour on load\n }\n}\n\n// Add H4 as an acceptable tag\nTrix.config.blockAttributes[\"heading4\"] = {\n tagName: \"h4\",\n terminal: true,\n breakOnReturn: true,\n group: false,\n};\n\n// Remove H1 from trix list of acceptable tags\ndelete Trix.config.blockAttributes.heading1;\n\n/**\n * Allow users to enter path and fragment URIs which the input[type=url] browser\n * input does not permit. Uses a permissive regex pattern which is not suitable\n * for untrusted use cases.\n */\nconst LINK_PATTERN = \"(https?|mailto:|tel:|/|#).*?\";\n\n/**\n * Customize default toolbar:\n *\n * * headings: h4 instead of h1\n * * links: use type=text instead of type=url\n *\n * @returns {String} toolbar html fragment\n */\nTrix.config.toolbar.getDefaultHTML = () => {\n const { lang } = Trix.config;\n return `\n
\n