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import { TableEditor } from './editors/TableEditor';
import type { TableWithRoot } from './TableWithRoot';
import type { TableEditFeatureName } from './editors/features/TableEditFeatureName';
import type { OnTableEditorCreatedCallback } from './OnTableEditorCreatedCallback';
import type {
DOMHelper,
EditorPlugin,
IEditor,
PluginEvent,
Rect,
} from 'roosterjs-content-model-types';
const TABLE_RESIZER_LENGTH = 12;
/**
* TableEdit plugin, provides the ability to resize a table by drag-and-drop
*/
export class TableEditPlugin implements EditorPlugin {
private editor: IEditor | null = null;
private onMouseMoveDisposer: (() => void) | null = null;
private tableRectMap: (TableWithRoot & { rect: Rect })[] | null = null;
private tableEditor: TableEditor | null = null;
/**
* Construct a new instance of TableResize plugin
* @param anchorContainerSelector An optional selector string to specify the container to host the plugin.
* The container must not be affected by transform: scale(), otherwise the position calculation will be wrong.
* If not specified, the plugin will be inserted in document.body
* @param onTableEditorCreated An optional callback to customize the Table Editors elements when created.
* @param disableFeatures An optional array of TableEditFeatures to disable
* @param tableSelector A function to select the tables to be edited. By default, it selects all contentEditable tables.
*/
constructor(
private anchorContainerSelector?: string,
private onTableEditorCreated?: OnTableEditorCreatedCallback,
private disableFeatures?: TableEditFeatureName[],
private EtableSelector: (domHelper: DOMHelper) => TableWithRoot[] = defaultTableSelector
) {}
/**
* Get a friendly name of this plugin
*/
getName() {
return 'TableEdit';
}
/**
* Initialize this plugin. This should only be called from Editor
* @param editor Editor instance
*/
initialize(editor: IEditor) {
this.editor = editor;
this.onMouseMoveDisposer = this.editor.attachDomEvent({
mousemove: { beforeDispatch: this.onMouseMove },
});
const scrollContainer = this.editor.getScrollContainer();
scrollContainer.addEventListener('mouseout', this.onMouseOut);
}
private onMouseOut = ({ relatedTarget, currentTarget }: MouseEvent) => {
const relatedTargetNode = relatedTarget as Node;
const currentTargetNode = currentTarget as Node;
if (
isNodeOfType(relatedTargetNode, 'ELEMENT_NODE') &&
isNodeOfType(currentTargetNode, 'ELEMENT_NODE') &&
this.tableEditor &&
!this.tableEditor.isOwnedElement(relatedTargetNode) &&
!currentTargetNode.contains(relatedTargetNode)
) {
this.setTableEditor(null);
}
};
/**
* Dispose this plugin
*/
dispose() {
const scrollContainer = this.editor?.getScrollContainer();
scrollContainer?.removeEventListener('mouseout', this.onMouseOut);
this.onMouseMoveDisposer?.();
this.invalidateTableRects();
this.disposeTableEditor();
this.editor = null;
this.onMouseMoveDisposer = null;
this.onTableEditorCreated = undefined;
}
/**
* Handle events triggered from editor
* @param event PluginEvent object
*/
onPluginEvent(e: PluginEvent) {
switch (e.eventType) {
case 'input':
case 'contentChanged':
case 'scroll':
case 'zoomChanged':
this.setTableEditor(null);
this.invalidateTableRects();
break;
}
}
private onMouseMove = (event: Event) => {
const e = event as MouseEvent;
if (e.buttons > 0 || !this.editor) {
return;
}
this.ensureTableRects();
const editorWindow = this.editor.getDocument().defaultView || window;
const x = e.pageX - editorWindow.scrollX;
const y = e.pageY - editorWindow.scrollY;
let currentTable: TableWithRoot | null = null;
//Find table in range of mouse
if (this.tableRectMap) {
for (let i = this.tableRectMap.length - 1; i >= 0; i--) {
const entry = this.tableRectMap[i];
const { rect } = entry;
if (
x >= rect.left - TABLE_RESIZER_LENGTH &&
x <= rect.right + TABLE_RESIZER_LENGTH &&
y >= rect.top - TABLE_RESIZER_LENGTH &&
y <= rect.bottom + TABLE_RESIZER_LENGTH
) {
currentTable = entry;
break;
}
}
}
this.setTableEditor(currentTable, e);
this.tableEditor?.onMouseMove(x, y);
};
/**
* @internal Public only for unit test
* @param entry Table to use when setting the Editors
* @param event (Optional) Mouse event
*/
public setTableEditor(entry: TableWithRoot | null, event?: MouseEvent) {
if (
this.tableEditor &&
!this.tableEditor.isEditing() &&
entry?.table != this.tableEditor.table
) {
this.disposeTableEditor();
}
if (!this.tableEditor && entry && this.editor && entry.table.rows.length > 0) {
// anchorContainerSelector is used to specify the container to host the plugin, which can be outside of the editor's div
const container = this.anchorContainerSelector
? this.editor.getDocument().querySelector(this.anchorContainerSelector)
: undefined;
this.tableEditor = new TableEditor(
this.editor,
entry.table,
entry.logicalRoot,
this.invalidateTableRects,
isNodeOfType(container, 'ELEMENT_NODE') ? container : undefined,
event?.currentTarget,
this.onTableEditorCreated,
this.disableFeatures
);
}
}
private invalidateTableRects = () => {
this.tableRectMap = null;
};
private disposeTableEditor() {
this.tableEditor?.dispose();
this.tableEditor = null;
}
private ensureTableRects() {
if (!this.tableRectMap && this.editor) {
this.tableRectMap = [];
const tables = this.tableSelector(this.editor.getDOMHelper());
tables.forEach(table => {
const rect = normalizeRect(table.table.getBoundingClientRect());
if (rect && this.tableRectMap) {
this.tableRectMap.push({
...table,
rect,
});
}
});
}
}
}
function defaultTableSelector(domHelper: DOMHelper): TableWithRoot[] {
return domHelper
.queryElements('table')
.filter(table => table.isContentEditable)
.map(table => ({
table,
logicalRoot: null,
}));
}
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