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