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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsTreeContentView_h__
#define nsTreeContentView_h__
#include "nsCycleCollectionParticipant.h"
#include "nsTArray.h"
#include "nsStubDocumentObserver.h"
#include "nsITreeView.h"
#include "nsITreeSelection.h"
#include "nsWrapperCache.h"
#include "mozilla/Attributes.h"
#include "mozilla/UniquePtr.h"
class nsSelection;
class nsTreeColumn;
class Row;
namespace mozilla {
class ErrorResult;
namespace dom {
class DataTransfer;
class Document;
class Element;
class XULTreeElement;
} // namespace dom
} // namespace mozilla
nsresult NS_NewTreeContentView(nsITreeView** aResult);
class nsTreeContentView final : public nsITreeView,
public nsStubDocumentObserver,
public nsWrapperCache {
typedef mozilla::dom::Element Element;
public:
nsTreeContentView(void);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS_AMBIGUOUS(nsTreeContentView,
nsITreeView)
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
nsISupports* GetParentObject();
int32_t RowCount() { return mRows.Length(); }
nsITreeSelection* GetSelection() { return mSelection; }
void SetSelection(nsITreeSelection* aSelection, mozilla::ErrorResult& aError);
void GetRowProperties(int32_t aRow, nsAString& aProperties,
mozilla::ErrorResult& aError);
void GetCellProperties(int32_t aRow, nsTreeColumn& aColumn,
nsAString& aProperies, mozilla::ErrorResult& aError);
void GetColumnProperties(nsTreeColumn& aColumn, nsAString& aProperies);
bool IsContainer(int32_t aRow, mozilla::ErrorResult& aError);
bool IsContainerOpen(int32_t aRow, mozilla::ErrorResult& aError);
bool IsContainerEmpty(int32_t aRow, mozilla::ErrorResult& aError);
bool IsSeparator(int32_t aRow, mozilla::ErrorResult& aError);
bool IsSorted() { return false; }
bool CanDrop(int32_t aRow, int32_t aOrientation,
mozilla::dom::DataTransfer* aDataTransfer,
mozilla::ErrorResult& aError);
void Drop(int32_t aRow, int32_t aOrientation,
mozilla::dom::DataTransfer* aDataTransfer,
mozilla::ErrorResult& aError);
int32_t GetParentIndex(int32_t aRow, mozilla::ErrorResult& aError);
bool HasNextSibling(int32_t aRow, int32_t aAfterIndex,
mozilla::ErrorResult& aError);
int32_t GetLevel(int32_t aRow, mozilla::ErrorResult& aError);
void GetImageSrc(int32_t aRow, nsTreeColumn& aColumn, nsAString& aSrc,
mozilla::ErrorResult& aError);
void GetCellValue(int32_t aRow, nsTreeColumn& aColumn, nsAString& aValue,
mozilla::ErrorResult& aError);
void GetCellText(int32_t aRow, nsTreeColumn& aColumn, nsAString& aText,
mozilla::ErrorResult& aError);
void SetTree(mozilla::dom::XULTreeElement* aTree,
mozilla::ErrorResult& aError);
void ToggleOpenState(int32_t aRow, mozilla::ErrorResult& aError);
void CycleHeader(nsTreeColumn& aColumn, mozilla::ErrorResult& aError);
void SelectionChanged() {}
void CycleCell(int32_t aRow, nsTreeColumn& aColumn) {}
bool IsEditable(int32_t aRow, nsTreeColumn& aColumn,
mozilla::ErrorResult& aError);
void SetCellValue(int32_t aRow, nsTreeColumn& aColumn,
const nsAString& aValue, mozilla::ErrorResult& aError);
void SetCellText(int32_t aRow, nsTreeColumn& aColumn, const nsAString& aText,
mozilla::ErrorResult& aError);
Element* GetItemAtIndex(int32_t aRow, mozilla::ErrorResult& aError);
int32_t GetIndexOfItem(Element* aItem);
NS_DECL_NSITREEVIEW
// nsIDocumentObserver
NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
static bool CanTrustTreeSelection(nsISupports* aValue);
protected:
~nsTreeContentView(void);
// Recursive methods which deal with serializing of nested content.
void Serialize(nsIContent* aContent, int32_t aParentIndex, int32_t* aIndex,
nsTArray<mozilla::UniquePtr<Row>>& aRows);
void SerializeItem(Element* aContent, int32_t aParentIndex, int32_t* aIndex,
nsTArray<mozilla::UniquePtr<Row>>& aRows);
void SerializeSeparator(Element* aContent, int32_t aParentIndex,
int32_t* aIndex,
nsTArray<mozilla::UniquePtr<Row>>& aRows);
void GetIndexInSubtree(nsIContent* aContainer, nsIContent* aContent,
int32_t* aResult);
// Helper methods which we use to manage our plain array of rows.
int32_t EnsureSubtree(int32_t aIndex);
int32_t RemoveSubtree(int32_t aIndex);
int32_t InsertRow(int32_t aParentIndex, int32_t aIndex, nsIContent* aContent);
void InsertRowFor(nsIContent* aParent, nsIContent* aChild);
int32_t RemoveRow(int32_t aIndex);
void ClearRows();
void OpenContainer(int32_t aIndex);
void CloseContainer(int32_t aIndex);
int32_t FindContent(nsIContent* aContent);
void UpdateSubtreeSizes(int32_t aIndex, int32_t aCount);
void UpdateParentIndexes(int32_t aIndex, int32_t aSkip, int32_t aCount);
bool CanDrop(int32_t aRow, int32_t aOrientation,
mozilla::ErrorResult& aError);
void Drop(int32_t aRow, int32_t aOrientation, mozilla::ErrorResult& aError);
// Content helpers.
Element* GetCell(nsIContent* aContainer, nsTreeColumn& aCol);
private:
bool IsValidRowIndex(int32_t aRowIndex);
RefPtr<mozilla::dom::XULTreeElement> mTree;
nsCOMPtr<nsITreeSelection> mSelection;
nsCOMPtr<nsIContent> mBody;
mozilla::dom::Document* mDocument; // WEAK
nsTArray<mozilla::UniquePtr<Row>> mRows;
};
#endif // nsTreeContentView_h__
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