зеркало из https://github.com/mozilla/gecko-dev.git
166 строки
6.3 KiB
C++
166 строки
6.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "nsITreeView.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 nsSelection;
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class nsTreeColumn;
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class Row;
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namespace mozilla {
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namespace dom {
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class DataTransfer;
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class Document;
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class Element;
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class XULTreeElement;
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} // namespace dom
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} // namespace mozilla
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nsresult NS_NewTreeContentView(nsITreeView** aResult);
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class nsTreeContentView final : public nsITreeView,
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public nsStubDocumentObserver,
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public nsWrapperCache {
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typedef mozilla::dom::Element Element;
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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_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsTreeContentView,
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nsITreeView)
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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nsISupports* GetParentObject();
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int32_t RowCount() { return mRows.Length(); }
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nsITreeSelection* GetSelection() { return mSelection; }
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void SetSelection(nsITreeSelection* aSelection, mozilla::ErrorResult& aError);
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void GetRowProperties(int32_t aRow, nsAString& aProperties,
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mozilla::ErrorResult& aError);
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void GetCellProperties(int32_t aRow, nsTreeColumn& aColumn,
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nsAString& aProperies, mozilla::ErrorResult& aError);
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void GetColumnProperties(nsTreeColumn& aColumn, nsAString& aProperies);
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bool IsContainer(int32_t aRow, mozilla::ErrorResult& aError);
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bool IsContainerOpen(int32_t aRow, mozilla::ErrorResult& aError);
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bool IsContainerEmpty(int32_t aRow, mozilla::ErrorResult& aError);
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bool IsSeparator(int32_t aRow, mozilla::ErrorResult& aError);
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bool IsSorted() { return false; }
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bool CanDrop(int32_t aRow, int32_t aOrientation,
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mozilla::dom::DataTransfer* aDataTransfer,
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mozilla::ErrorResult& aError);
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void Drop(int32_t aRow, int32_t aOrientation,
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mozilla::dom::DataTransfer* aDataTransfer,
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mozilla::ErrorResult& aError);
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int32_t GetParentIndex(int32_t aRow, mozilla::ErrorResult& aError);
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bool HasNextSibling(int32_t aRow, int32_t aAfterIndex,
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mozilla::ErrorResult& aError);
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int32_t GetLevel(int32_t aRow, mozilla::ErrorResult& aError);
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void GetImageSrc(int32_t aRow, nsTreeColumn& aColumn, nsAString& aSrc,
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mozilla::ErrorResult& aError);
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void GetCellValue(int32_t aRow, nsTreeColumn& aColumn, nsAString& aValue,
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mozilla::ErrorResult& aError);
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void GetCellText(int32_t aRow, nsTreeColumn& aColumn, nsAString& aText,
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mozilla::ErrorResult& aError);
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void SetTree(mozilla::dom::XULTreeElement* aTree,
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mozilla::ErrorResult& aError);
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void ToggleOpenState(int32_t aRow, mozilla::ErrorResult& aError);
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void CycleHeader(nsTreeColumn& aColumn, mozilla::ErrorResult& aError);
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void SelectionChanged() {}
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void CycleCell(int32_t aRow, nsTreeColumn& aColumn) {}
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bool IsEditable(int32_t aRow, nsTreeColumn& aColumn,
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mozilla::ErrorResult& aError);
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void SetCellValue(int32_t aRow, nsTreeColumn& aColumn,
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const nsAString& aValue, mozilla::ErrorResult& aError);
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void SetCellText(int32_t aRow, nsTreeColumn& aColumn, const nsAString& aText,
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mozilla::ErrorResult& aError);
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void PerformAction(const nsAString& aAction) {}
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void PerformActionOnRow(const nsAString& aAction, int32_t aRow) {}
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void PerformActionOnCell(const nsAString& aAction, int32_t aRow,
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nsTreeColumn& aColumn) {}
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Element* GetItemAtIndex(int32_t aRow, mozilla::ErrorResult& aError);
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int32_t GetIndexOfItem(Element* aItem);
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NS_DECL_NSITREEVIEW
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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(Element* aContent, int32_t aParentIndex, int32_t* aIndex,
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nsTArray<mozilla::UniquePtr<Row>>& aRows);
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void SerializeSeparator(Element* aContent, int32_t aParentIndex,
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int32_t* aIndex,
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nsTArray<mozilla::UniquePtr<Row>>& aRows);
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void GetIndexInSubtree(nsIContent* aContainer, nsIContent* aContent,
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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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bool CanDrop(int32_t aRow, int32_t aOrientation,
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mozilla::ErrorResult& aError);
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void Drop(int32_t aRow, int32_t aOrientation, mozilla::ErrorResult& aError);
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// Content helpers.
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Element* GetCell(nsIContent* aContainer, nsTreeColumn& aCol);
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private:
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bool IsValidRowIndex(int32_t aRowIndex);
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RefPtr<mozilla::dom::XULTreeElement> mTree;
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nsCOMPtr<nsITreeSelection> mSelection;
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nsCOMPtr<nsIContent> mBody;
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mozilla::dom::Document* 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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