* @description Change the current root index. * @example * // Switch to the 'body' frame in a multi-root editor * editor.changeFrameContext('bod

* @description Process children of a JSON node into inline markdown * @param {Array<Object>} children * @returns {string}

* @optional * Called when a container is deselected. * @param {HTMLElement} target - Target element * @returns {void}

* @description Initialize the transform style (rotation) of the element. * @param {?Node} [node] Target element, default is the current element

* @description Opens the dropdown menu for the specified button. * @param {Node} button Dropdown's button element to call

* @description Edits a table cell(column), either adding, removing, or modifying the cell based on the provided option. * @param {?string} option Th

* @description Dispatches an event to all registered plugin handlers synchronously. * @param {string} name The event name (e.g., 'onMouseMove', 'onF

* Set the mock getImageData to return specific pixel data. * Since ensureCanvasMocks() creates a factory function, each getContext() call * retu

* @description Sets the table and figure elements based on the provided cell element, and stores references to them for later use. * @param {Node} e

* @description Add a `hr` element * @param {string} className HR class name

* @internal * @description Calls a registered plugin event asynchronously. * @param {string} name The name of the plugin event * @param {SunEdit

* @optional * Executes the method called when a button of `ColorPicker` module is clicked. * - When applying the `ColorPicker` module globally to

* Creates a fully-wired mock kernel for the Viewer constructor. * Each call produces independent DOM elements and Maps so tests are isolated.

* @deprecated * @description Gets the current editor-relative scroll offset. * @param {?Node} [node] Target element. * @returns {OffsetGlobalScr

* @description Use with `npdePath` (dom-query-GetNodePath) to merge the same attributes and tags if they are present and modify the nodepath. * - If

* @hook Editor.EventManager * @type {SunEditor.Hook.Event.OnFilePasteAndDrop}

* @description Prepares for resizing from the edge of a cell or row. * @param {MouseEvent} event - Mouse event * @param {HTMLTableCellElement} tar

* @description Sets command target elements. * @param {string} cmd - The command identifier. * @param {HTMLButtonElement} target - The associated

* @description Delete a empty child node of argument element * @param {Node} element Element node * @param {?Node} notRemoveNode Do not remove nod

* @description Execute `editor.run` with command button. * @param {Node} target Command target

* @internal * @description Selects multiple table cells and applies selection styles. * @param {Node} startCell The first cell in the selection.

* @returns {{slider: HTMLElement, offscreenCanvas: HTMLCanvasElement, offscreenCtx: CanvasRenderingContext2D, wheel: HTMLCanvasElement, wheelCtx: Canv

* @description Ratio calculation * @param {string|number} w Width size * @param {string|number} h Height size * @param {?string} [defaultSizeUni

* @internal * @description Run `CodeMirror` Editor * @param {"set"|"get"|"readonly"|"refresh"} key Method key * @param {*} value `CodeMirror` pa

* @internal * @description Set the disabled button list

* @description Appended all selected `line` element to the argument element(`block`) and insert * @param {Node} blockElement Element of wrap the arg

* @description Get the number of words in the content. * - If [content] is `undefined`, get the current editor's word count. * @param {string} [co

* @abstract * This method is called when the color is selected in the hue slider. * @returns {void}

* @description It is judged whether it is the only `line` element. * @param {Node|string} element The node to check * @returns {element is HTMLEle

* @description Determines if the `range` is within an uneditable node. * @param {EventPorts} ports - Reducer ports * @param {Range} range The range

* @description Closes the currently open modal dialog.

* @description Open the preview window.

* @description Prints the current content of the editor. * @throws {Error} Throws error if print operation fails.

* @description Set the element's container size * @param {string|number} w Width size * @param {string|number} h Height size

* @description Applies properties to table cells. * @param {HTMLButtonElement} target The target element.

@description Core search — clear previous, find matches, highlight, update count.

* @description Ratio calculation * @param {string|number} w Width size * @param {string|number} h Height size * @param {string} defaultSizeUnit

* @param {Element} element - Element * @param {string} name - Attribute name * @returns {string|null}

* @internal * @description Toggle the disabled state of buttons reserved for Code View. * @param {boolean} isCodeView

* @internal * @description Visible controllers * @param {boolean} value hidden/show * @param {?boolean} [lineBreakShow] Line break hidden/show (

* @description Applies the specified width and height to the image. * @param {string} w - Image width. * @param {string} h - Image height.

* @description Cancel API (xhr.abort())

* @description Closes the currently open menu container.

* @description Checks if the content of the editor is empty. * - Display criteria for "placeholder". * @param {?SunEditor.FrameContext} [fc] Frame

* @description Updates the target table's cells with the data from the copied table. * @param {HTMLTableElement} copyTable The table containing the

* @description Add or reset option property (Editor is reloaded) * @example * // Change toolbar buttons and height * editor.resetOptions({ *

* @description Set the file information to the element. * @param {Node} element File information element * @param {Object} params * @param {stri

* @description Sets the width and height input values. * @param {string} w - Width value * @param {string} h - Height value

* @description Set the index of the selected item * @param {number} index Item index

* @description Removes global event listeners and resets resize-related properties.

* @internal * @description Deselects the currently selected component, removing any selection effects and associated event listeners. * - This met

* @internal * @description Sets padding-bottom for cover elements based on width and height. * @param {string} w Width value. * @param {string}

* @description Closes table-related controllers.

* @internal * @description Checks if an element is a header. * @param {Node} element - The element to check. * @returns {boolean} `true` if the

* @internal * @description Sets the figure element to its auto size.

* @internal * @description Set the `active` class to the button of the toolbar

* @internal * @description If there is no default format, add a `line` and move `selection`. * @param {?string} formatName Format tag name (defaul

* @internal * @description Synchronizes frame UI state after content changes. * Coordinates `iframe` height adjustment, `placeholder` visibility,

* @description Edits a table row, either adding, removing, the row * @param {?string} option The action to perform on the row (`up`|`down`|`null`)

* Helper: Extract captured event handlers from eventManager.addEvent calls. * The constructor binds all private methods via eventManager.addEvent.

* Override the module-level wheelCtx and offscreenCtx getImageData * to return specific pixel data, enabling non-achromatic code paths.

* @internal * @description Hide the toolbar.

* @internal * @description Nodes that need to be added without modification when changing text nodes * @param {Node} element Element to check *

* @internal * @description Show the `inline` toolbar mode.

* @description Close the alert panel

* @description Activates the corresponding button with the tags information of the current cursor position, * - such as `bold`, `underline`, etc., a

* @description Check the components such as image and video and modify them according to the format. * @param {boolean} loaded If `true`, the compon

* @description As style[block, inline] the component * @param {?Node} targetNode Target element * @param {"block"|"inline"} formatStyle Format sty

* @description Activate the transparent background `div` so that other elements are not affected during resizing. * @param {string} cursor cursor cs

* @description Navigate to next match (public for shortcut binding).

* @description Check if the container and offset values are the edges of the `line` * @param {Node} node The node of the selection object. (range.st

* @description Store color values * @param {string} hexColorStr Hax color value

* @description Updates table layout styles. * @param {string} styles - Styles to update. * @param {boolean} isMaxWidth - Whether the table is set

* @description Checks if the given path is an internal bookmark. * @param {string} path - The URL or anchor link. * @returns {boolean} - `true` if

* @internal * @description Removes drag-related events and resets drag-related states.

* @internal * @description Calls a registered plugin event synchronously. * @param {string} name The name of the plugin event * @param {SunEdito

* @internal * @description Hide the currently active more options layer.

* @internal * @description Toggle the disabled state of buttons when a controller is active. * @param {boolean} isOpen

* @description Create a header tag, call by `shortcut` class * - (e.g. shortcuts._h1: ['c+s+49+$~blockStyle.applyHeaderByShortcut', '']) * @param

* @description Apply retain format rules from plugins to the parsed DOM * @param {DocumentFragment|Document} domParser

* @description Select menu close