import{Command as R,Plugin as u}from"@ckeditor/ckeditor5-core";import{transformOperationSets as k,NoOperation as C}from"@ckeditor/ckeditor5-engine";import{ButtonView as T,MenuBarMenuListItemButtonView as O}from"@ckeditor/ckeditor5-ui";import{IconUndo as f,IconRedo as g}from"@ckeditor/ckeditor5-icons";/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/class m extends R{_stack=[];_createdBatches=new WeakSet;constructor(t){super(t),this.refresh(),this._isEnabledBasedOnSelection=!1,this.listenTo(t.data,"set",(e,o)=>{o[1]={...o[1]};const s=o[1];s.batchType||(s.batchType={isUndoable:!1})},{priority:"high"}),this.listenTo(t.data,"set",(e,o)=>{o[1].batchType.isUndoable||this.clearStack()})}refresh(){this.isEnabled=this._stack.length>0}get createdBatches(){return this._createdBatches}addBatch(t){const e=this.editor.model.document.selection,o={ranges:e.hasOwnRange?Array.from(e.getRanges()):[],isBackward:e.isBackward};this._stack.push({batch:t,selection:o}),this.refresh()}clearStack(){this._stack=[],this.refresh()}_restoreSelection(t,e,o){const s=this.editor.model,i=s.document,n=[],d=t.map(r=>r.getTransformedByOperations(o)),h=d.flat();for(const r of d){const l=r.filter(c=>c.root!=i.graveyard).filter(c=>!w(c,h));l.length&&(U(l),n.push(l[0]))}n.length&&s.change(r=>{r.setSelection(n,{backward:e})})}_undo(t,e){const o=this.editor.model,s=o.document;this._createdBatches.add(e);const i=t.operations.slice().filter(n=>n.isDocumentOperation);i.reverse();for(const n of i){const d=n.baseVersion+1,h=Array.from(s.history.getOperations(d)),l=k([n.getReversed()],h,{useRelations:!0,document:this.editor.model.document,padWithNoOps:!1,forceWeakRemove:!0}).operationsA;for(let c of l){const p=c.affectedSelectable;p&&!o.canEditAt(p)&&(c=new C(c.baseVersion)),e.addOperation(c),o.applyOperation(c),s.history.setOperationAsUndone(n,c)}}}}function U(a){a.sort((t,e)=>t.start.isBefore(e.start)?-1:1);for(let t=1;t<a.length;t++){const o=a[t-1].getJoined(a[t],!0);o&&(t--,a.splice(t,2,o))}}function w(a,t){return t.some(e=>e!==a&&e.containsRange(a,!0))}/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/class _ extends m{execute(t=null){const e=t?this._stack.findIndex(i=>i.batch==t):this._stack.length-1,o=this._stack.splice(e,1)[0],s=this.editor.model.createBatch({isUndo:!0});this.editor.model.enqueueChange(s,()=>{this._undo(o.batch,s);const i=this.editor.model.document.history.getOperations(o.batch.baseVersion);this._restoreSelection(o.selection.ranges,o.selection.isBackward,i)}),this.fire("revert",o.batch,s),this.refresh()}}/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/class B extends m{execute(){const t=this._stack.pop(),e=this.editor.model.createBatch({isUndo:!0});this.editor.model.enqueueChange(e,()=>{const s=t.batch.operations[t.batch.operations.length-1].baseVersion+1,i=this.editor.model.document.history.getOperations(s);this._restoreSelection(t.selection.ranges,t.selection.isBackward,i),this._undo(t.batch,e)}),this.fire("revert",t.batch,e),this.refresh()}}/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/class b extends u{_undoCommand;_redoCommand;_batchRegistry=new WeakSet;static get pluginName(){return"UndoEditing"}static get isOfficialPlugin(){return!0}init(){const t=this.editor,e=t.t;this._undoCommand=new _(t),this._redoCommand=new B(t),t.commands.add("undo",this._undoCommand),t.commands.add("redo",this._redoCommand),this.listenTo(t.model,"applyOperation",(o,s)=>{const i=s[0];if(!i.isDocumentOperation)return;const n=i.batch,d=this._redoCommand.createdBatches.has(n),h=this._undoCommand.createdBatches.has(n);this._batchRegistry.has(n)||(this._batchRegistry.add(n),n.isUndoable&&(d?this._undoCommand.addBatch(n):h||(this._undoCommand.addBatch(n),this._redoCommand.clearStack())))},{priority:"highest"}),this.listenTo(this._undoCommand,"revert",(o,s,i)=>{this._redoCommand.addBatch(i)}),t.keystrokes.set("CTRL+Z","undo"),t.keystrokes.set("CTRL+Y","redo"),t.keystrokes.set("CTRL+SHIFT+Z","redo"),t.accessibility.addKeystrokeInfos({keystrokes:[{label:e("Undo"),keystroke:"CTRL+Z"},{label:e("Redo"),keystroke:[["CTRL+Y"],["CTRL+SHIFT+Z"]]}]})}}/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/class y extends u{static get pluginName(){return"UndoUI"}static get isOfficialPlugin(){return!0}init(){const t=this.editor,e=t.locale,o=t.t,s=e.uiLanguageDirection=="ltr"?f:g,i=e.uiLanguageDirection=="ltr"?g:f;this._addButtonsToFactory("undo",o("Undo"),"CTRL+Z",s),this._addButtonsToFactory("redo",o("Redo"),"CTRL+Y",i)}_addButtonsToFactory(t,e,o,s){const i=this.editor;i.ui.componentFactory.add(t,()=>{const n=this._createButton(T,t,e,o,s);return n.set({tooltip:!0}),n}),i.ui.componentFactory.add("menuBar:"+t,()=>this._createButton(O,t,e,o,s))}_createButton(t,e,o,s,i){const n=this.editor,d=n.locale,h=n.commands.get(e),r=new t(d);return r.set({label:o,icon:i,keystroke:s}),r.bind("isEnabled").to(h,"isEnabled"),this.listenTo(r,"execute",()=>{n.execute(e),n.editing.view.focus()}),r}}/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/class S extends u{static get requires(){return[b,y]}static get pluginName(){return"Undo"}static get isOfficialPlugin(){return!0}}export{B as RedoCommand,S as Undo,_ as UndoCommand,b as UndoEditing,m as UndoRedoBaseCommand,y as UndoUI};
