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/** |
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* Block copy/cut/paste on PB form CPTs (native clipboard events, not the |
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* keyboard-shortcuts store). Pasting a field block would duplicate `meta-name`. |
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* |
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* Capture-phase on the canvas iframe doc; editable text targets are left alone. |
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* Re-attach when the iframe mounts or reloads. |
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*/ |
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|
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import { registerPlugin } from '@wordpress/plugins'; |
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import { useSelect } from '@wordpress/data'; |
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import { useEffect } from '@wordpress/element'; |
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|
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const PB_CPTS = [ 'wppb-rf-cpt', 'wppb-epf-cpt' ]; |
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const CLIP_EVENTS = [ 'copy', 'cut', 'paste' ]; |
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const ATTACHED_FLAG = 'wppbFbClipboardGuard'; |
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|
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// Non-text inputs: block-level clipboard from these should still be blocked. |
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const NON_TEXT_INPUT_TYPES = [ |
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'checkbox', 'radio', 'button', 'submit', 'reset', 'file', 'range', 'color', 'image', |
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]; |
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|
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/** True when the target is editable text — leave native clipboard alone. */ |
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function isEditableTextTarget( target ) { |
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if ( ! target || typeof target.closest !== 'function' ) return false; |
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if ( target.closest( '[contenteditable="true"], [contenteditable=""]' ) ) return true; |
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const field = target.closest( 'input, textarea' ); |
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if ( ! field ) return false; |
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if ( field.tagName === 'TEXTAREA' ) return true; |
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const type = ( field.getAttribute( 'type' ) || 'text' ).toLowerCase(); |
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return ! NON_TEXT_INPUT_TYPES.includes( type ); |
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} |
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|
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function clipboardHandler( event ) { |
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if ( isEditableTextTarget( event.target ) ) return; |
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event.stopImmediatePropagation(); |
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event.preventDefault(); |
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} |
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|
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function attachTo( doc ) { |
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if ( ! doc || ! doc.documentElement ) return; |
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if ( doc.documentElement.dataset[ ATTACHED_FLAG ] === '1' ) return; |
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doc.documentElement.dataset[ ATTACHED_FLAG ] = '1'; |
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// Doc + window so we win regardless of where Gutenberg attaches. |
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const targets = doc.defaultView ? [ doc, doc.defaultView ] : [ doc ]; |
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for ( const t of targets ) { |
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for ( const type of CLIP_EVENTS ) { |
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t.addEventListener( type, clipboardHandler, true ); |
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} |
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} |
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} |
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|
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/** Canvas iframe doc, or main document as non-iframe fallback. */ |
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function findCanvasDoc() { |
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const iframe = document.querySelector( 'iframe[name="editor-canvas"]' ); |
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if ( iframe && iframe.contentDocument ) return iframe.contentDocument; |
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if ( document.querySelector( '.editor-styles-wrapper' ) ) return document; |
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return null; |
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} |
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|
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const DisableBlockClipboard = () => { |
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const isOurPostType = useSelect( |
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( select ) => PB_CPTS.includes( select( 'core/editor' ).getCurrentPostType() ), |
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[] |
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); |
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|
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useEffect( () => { |
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if ( ! isOurPostType ) return undefined; |
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|
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let frame = null; |
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const scheduleAttach = () => { |
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if ( frame ) return; |
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frame = requestAnimationFrame( () => { |
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frame = null; |
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attachTo( findCanvasDoc() ); |
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} ); |
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}; |
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|
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attachTo( findCanvasDoc() ); |
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|
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const observer = new MutationObserver( scheduleAttach ); |
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observer.observe( document.body, { childList: true, subtree: true } ); |
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|
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const iframe = document.querySelector( 'iframe[name="editor-canvas"]' ); |
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if ( iframe ) iframe.addEventListener( 'load', scheduleAttach ); |
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|
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return () => { |
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observer.disconnect(); |
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if ( frame ) cancelAnimationFrame( frame ); |
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if ( iframe ) iframe.removeEventListener( 'load', scheduleAttach ); |
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}; |
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}, [ isOurPostType ] ); |
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|
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return null; |
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}; |
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|
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registerPlugin( 'wppb-fb-disable-block-clipboard', { render: DisableBlockClipboard } ); |
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