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Diffstat (limited to 'layout/xul/tree/nsTreeContentView.h')
| -rw-r--r-- | layout/xul/tree/nsTreeContentView.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/layout/xul/tree/nsTreeContentView.h b/layout/xul/tree/nsTreeContentView.h new file mode 100644 index 0000000000..8138ab44fc --- /dev/null +++ b/layout/xul/tree/nsTreeContentView.h @@ -0,0 +1,164 @@ +/* -*- 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__ |