65 lines
1.8 KiB
TypeScript
65 lines
1.8 KiB
TypeScript
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import FormatBlot from './abstract/format';
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import LeafBlot from './abstract/leaf';
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import ShadowBlot from './abstract/shadow';
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import * as Registry from '../registry';
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// Shallow object comparison
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function isEqual(obj1: Object, obj2: Object): boolean {
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if (Object.keys(obj1).length !== Object.keys(obj2).length) return false;
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// @ts-ignore
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for (let prop in obj1) {
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// @ts-ignore
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if (obj1[prop] !== obj2[prop]) return false;
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}
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return true;
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}
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class InlineBlot extends FormatBlot {
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static blotName = 'inline';
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static scope = Registry.Scope.INLINE_BLOT;
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static tagName = 'SPAN';
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static formats(domNode: HTMLElement): any {
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if (domNode.tagName === InlineBlot.tagName) return undefined;
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return super.formats(domNode);
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}
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format(name: string, value: any) {
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if (name === this.statics.blotName && !value) {
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this.children.forEach(child => {
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if (!(child instanceof FormatBlot)) {
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child = child.wrap(InlineBlot.blotName, true);
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}
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this.attributes.copy(<FormatBlot>child);
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});
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this.unwrap();
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} else {
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super.format(name, value);
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}
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}
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formatAt(index: number, length: number, name: string, value: any): void {
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if (this.formats()[name] != null || Registry.query(name, Registry.Scope.ATTRIBUTE)) {
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let blot = <InlineBlot>this.isolate(index, length);
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blot.format(name, value);
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} else {
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super.formatAt(index, length, name, value);
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}
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}
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optimize(context: { [key: string]: any }): void {
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super.optimize(context);
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let formats = this.formats();
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if (Object.keys(formats).length === 0) {
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return this.unwrap(); // unformatted span
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}
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let next = this.next;
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if (next instanceof InlineBlot && next.prev === this && isEqual(formats, next.formats())) {
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next.moveChildren(this);
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next.remove();
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}
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}
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}
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export default InlineBlot;
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