зеркало из https://github.com/mozilla/gecko-dev.git
129 строки
3.7 KiB
C++
129 строки
3.7 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 XULTreeElement_h__
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#define XULTreeElement_h__
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#include "mozilla/Attributes.h"
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#include "mozilla/ErrorResult.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsWrapperCache.h"
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#include "nsString.h"
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#include "nsXULElement.h"
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#include "nsITreeView.h"
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class nsTreeBodyFrame;
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class nsTreeColumn;
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class nsTreeColumns;
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namespace mozilla {
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namespace dom {
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struct TreeCellInfo;
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class DOMRect;
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enum class CallerType : uint32_t;
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class XULTreeElement final : public nsXULElement {
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public:
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explicit XULTreeElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
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: nsXULElement(std::move(aNodeInfo)),
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mCachedFirstVisibleRow(0),
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mTreeBody(nullptr) {}
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NS_IMPL_FROMNODE_WITH_TAG(XULTreeElement, kNameSpaceID_XUL, tree)
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(XULTreeElement, nsXULElement)
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nsTreeBodyFrame* GetTreeBodyFrame(FlushType = FlushType::Frames);
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nsTreeBodyFrame* GetCachedTreeBodyFrame() { return mTreeBody; }
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already_AddRefed<nsTreeColumns> GetColumns(FlushType = FlushType::Frames);
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already_AddRefed<nsITreeView> GetView(CallerType /* unused */) {
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return GetView();
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}
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already_AddRefed<nsITreeView> GetView();
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void SetView(nsITreeView* arg, CallerType aCallerType, ErrorResult& aRv);
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bool Focused();
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already_AddRefed<Element> GetTreeBody();
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int32_t RowHeight();
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int32_t RowWidth();
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int32_t HorizontalPosition();
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void EnsureCellIsVisible(int32_t row, nsTreeColumn* col, ErrorResult& aRv);
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void ScrollToRow(int32_t aRow);
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void ScrollByLines(int32_t aNumLines);
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void ScrollByPages(int32_t aNumPages);
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int32_t GetFirstVisibleRow();
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int32_t GetLastVisibleRow();
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int32_t GetPageLength();
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int32_t GetRowAt(int32_t x, int32_t y);
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void GetCellAt(int32_t x, int32_t y, TreeCellInfo& aRetVal, ErrorResult& aRv);
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nsIntRect GetCoordsForCellItem(int32_t aRow, nsTreeColumn* aCol,
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const nsAString& aElement, nsresult& rv);
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already_AddRefed<DOMRect> GetCoordsForCellItem(int32_t row, nsTreeColumn& col,
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const nsAString& element,
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ErrorResult& aRv);
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bool IsCellCropped(int32_t row, nsTreeColumn* col, ErrorResult& aRv);
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void RemoveImageCacheEntry(int32_t row, nsTreeColumn& col, ErrorResult& aRv);
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void SetFocused(bool aFocused);
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void EnsureRowIsVisible(int32_t index);
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void Invalidate(void);
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void InvalidateColumn(nsTreeColumn* col);
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void InvalidateRow(int32_t index);
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void InvalidateCell(int32_t row, nsTreeColumn* col);
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void InvalidateRange(int32_t startIndex, int32_t endIndex);
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void RowCountChanged(int32_t index, int32_t count);
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void BeginUpdateBatch(void);
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void EndUpdateBatch(void);
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void ClearStyleAndImageCaches(void);
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virtual void UnbindFromTree(bool aNullParent) override;
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virtual void DestroyContent() override;
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void BodyDestroyed(int32_t aFirstVisibleRow) {
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mTreeBody = nullptr;
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mCachedFirstVisibleRow = aFirstVisibleRow;
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}
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int32_t GetCachedTopVisibleRow() { return mCachedFirstVisibleRow; }
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protected:
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int32_t mCachedFirstVisibleRow;
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nsTreeBodyFrame* mTreeBody;
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nsCOMPtr<nsITreeView> mView;
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virtual ~XULTreeElement() = default;
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JSObject* WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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