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84 lines
2.5 KiB
84 lines
2.5 KiB
3 years ago
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import { Node } from 'prosemirror-model';
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import { NodeView } from 'prosemirror-view';
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/**
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* @public
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*/
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export class TableView implements NodeView {
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public dom: HTMLDivElement;
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public table: HTMLTableElement;
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public colgroup: HTMLTableColElement;
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public contentDOM: HTMLTableSectionElement;
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constructor(public node: Node, public cellMinWidth: number) {
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this.dom = document.createElement('div');
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this.dom.className = 'tableWrapper';
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this.table = this.dom.appendChild(document.createElement('table'));
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this.colgroup = this.table.appendChild(document.createElement('colgroup'));
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updateColumnsOnResize(node, this.colgroup, this.table, cellMinWidth);
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this.contentDOM = this.table.appendChild(document.createElement('tbody'));
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}
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update(node: Node): boolean {
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if (node.type != this.node.type) return false;
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this.node = node;
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updateColumnsOnResize(node, this.colgroup, this.table, this.cellMinWidth);
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return true;
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}
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ignoreMutation(record: MutationRecord): boolean {
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return (
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record.type == 'attributes' &&
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(record.target == this.table || this.colgroup.contains(record.target))
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);
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}
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}
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/**
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* @public
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*/
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export function updateColumnsOnResize(
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node: Node,
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colgroup: HTMLTableColElement,
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table: HTMLTableElement,
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cellMinWidth: number,
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overrideCol?: number,
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overrideValue?: number,
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): void {
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let totalWidth = 0,
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fixedWidth = true;
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let nextDOM = colgroup.firstChild as HTMLElement;
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const row = node.firstChild;
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for (let i = 0, col = 0; i < row.childCount; i++) {
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const { colspan, colwidth } = row.child(i).attrs;
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for (let j = 0; j < colspan; j++, col++) {
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const hasWidth =
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overrideCol == col ? overrideValue : colwidth && colwidth[j];
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const cssWidth = hasWidth ? hasWidth + 'px' : '';
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totalWidth += hasWidth || cellMinWidth;
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if (!hasWidth) fixedWidth = false;
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if (!nextDOM) {
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colgroup.appendChild(document.createElement('col')).style.width =
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cssWidth;
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} else {
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if (nextDOM.style.width != cssWidth) nextDOM.style.width = cssWidth;
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nextDOM = nextDOM.nextSibling as HTMLElement;
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}
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}
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}
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while (nextDOM) {
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const after = nextDOM.nextSibling;
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nextDOM.parentNode.removeChild(nextDOM);
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nextDOM = after as HTMLElement;
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}
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if (fixedWidth) {
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table.style.width = totalWidth + 'px';
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table.style.minWidth = '';
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} else {
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table.style.width = '';
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table.style.minWidth = totalWidth + 'px';
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}
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}
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