michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsTreeContentView_h__
michael@0: #define nsTreeContentView_h__
michael@0: 
michael@0: #include "nsAutoPtr.h"
michael@0: #include "nsCycleCollectionParticipant.h"
michael@0: #include "nsTArray.h"
michael@0: #include "nsStubDocumentObserver.h"
michael@0: #include "nsITreeBoxObject.h"
michael@0: #include "nsITreeColumns.h"
michael@0: #include "nsITreeView.h"
michael@0: #include "nsITreeContentView.h"
michael@0: #include "nsITreeSelection.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: class nsIDocument;
michael@0: class Row;
michael@0: 
michael@0: nsresult NS_NewTreeContentView(nsITreeView** aResult);
michael@0: 
michael@0: class nsTreeContentView MOZ_FINAL : public nsINativeTreeView,
michael@0:                                     public nsITreeContentView,
michael@0:                                     public nsStubDocumentObserver
michael@0: {
michael@0:   public:
michael@0:     nsTreeContentView(void);
michael@0: 
michael@0:     ~nsTreeContentView(void);
michael@0: 
michael@0:     NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0:     NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTreeContentView,
michael@0:                                              nsINativeTreeView)
michael@0: 
michael@0:     NS_DECL_NSITREEVIEW
michael@0:     // nsINativeTreeView: Untrusted code can use us
michael@0:     NS_IMETHOD EnsureNative() MOZ_OVERRIDE { return NS_OK; }
michael@0: 
michael@0:     NS_DECL_NSITREECONTENTVIEW
michael@0: 
michael@0:     // nsIDocumentObserver
michael@0:     NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
michael@0:     NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
michael@0:     NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
michael@0:     NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
michael@0:     NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
michael@0: 
michael@0:     static bool CanTrustTreeSelection(nsISupports* aValue);
michael@0: 
michael@0:   protected:
michael@0:     // Recursive methods which deal with serializing of nested content.
michael@0:     void Serialize(nsIContent* aContent, int32_t aParentIndex, int32_t* aIndex,
michael@0:                    nsTArray<nsAutoPtr<Row> >& aRows);
michael@0: 
michael@0:     void SerializeItem(nsIContent* aContent, int32_t aParentIndex,
michael@0:                        int32_t* aIndex, nsTArray<nsAutoPtr<Row> >& aRows);
michael@0: 
michael@0:     void SerializeSeparator(nsIContent* aContent, int32_t aParentIndex,
michael@0:                             int32_t* aIndex, nsTArray<nsAutoPtr<Row> >& aRows);
michael@0: 
michael@0:     void GetIndexInSubtree(nsIContent* aContainer, nsIContent* aContent, int32_t* aResult);
michael@0:     
michael@0:     // Helper methods which we use to manage our plain array of rows.
michael@0:     int32_t EnsureSubtree(int32_t aIndex);
michael@0: 
michael@0:     int32_t RemoveSubtree(int32_t aIndex);
michael@0: 
michael@0:     int32_t InsertRow(int32_t aParentIndex, int32_t aIndex, nsIContent* aContent);
michael@0: 
michael@0:     void InsertRowFor(nsIContent* aParent, nsIContent* aChild);
michael@0: 
michael@0:     int32_t RemoveRow(int32_t aIndex);
michael@0: 
michael@0:     void ClearRows();
michael@0:     
michael@0:     void OpenContainer(int32_t aIndex);
michael@0: 
michael@0:     void CloseContainer(int32_t aIndex);
michael@0: 
michael@0:     int32_t FindContent(nsIContent* aContent);
michael@0: 
michael@0:     void UpdateSubtreeSizes(int32_t aIndex, int32_t aCount);
michael@0: 
michael@0:     void UpdateParentIndexes(int32_t aIndex, int32_t aSkip, int32_t aCount);
michael@0: 
michael@0:     // Content helpers.
michael@0:     nsIContent* GetCell(nsIContent* aContainer, nsITreeColumn* aCol);
michael@0: 
michael@0:   private:
michael@0:     nsCOMPtr<nsITreeBoxObject>          mBoxObject;
michael@0:     nsCOMPtr<nsITreeSelection>          mSelection;
michael@0:     nsCOMPtr<nsIContent>                mRoot;
michael@0:     nsCOMPtr<nsIContent>                mBody;
michael@0:     nsIDocument*                        mDocument;      // WEAK
michael@0:     nsTArray<nsAutoPtr<Row> >           mRows;
michael@0: };
michael@0: 
michael@0: #endif // nsTreeContentView_h__