The Tor Browser: layout/xul/tree/nsTreeImageListener.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef nsTreeImageListener_h__

     7 #define nsTreeImageListener_h__

     9 #include "nsString.h"

    10 #include "nsCOMPtr.h"

    11 #include "nsITreeColumns.h"

    12 #include "nsTreeBodyFrame.h"

    13 #include "mozilla/Attributes.h"

    15 // This class handles image load observation.

    16 class nsTreeImageListener MOZ_FINAL : public imgINotificationObserver

    17 {

    18 public:

    19   nsTreeImageListener(nsTreeBodyFrame *aTreeFrame);

    20   ~nsTreeImageListener();

    22   NS_DECL_ISUPPORTS

    23   NS_DECL_IMGINOTIFICATIONOBSERVER

    25   NS_IMETHOD ClearFrame();

    27   friend class nsTreeBodyFrame;

    29 protected:

    30   void UnsuppressInvalidation() { mInvalidationSuppressed = false; }

    31   void Invalidate();

    32   void AddCell(int32_t aIndex, nsITreeColumn* aCol);

    34 private:

    35   nsTreeBodyFrame* mTreeFrame;

    37   // A guard that prevents us from recursive painting.

    38   bool mInvalidationSuppressed;

    40   class InvalidationArea {

    41     public:

    42       InvalidationArea(nsITreeColumn* aCol);

    43       ~InvalidationArea() { delete mNext; }

    45       friend class nsTreeImageListener;

    47     protected:

    48       void AddRow(int32_t aIndex);

    49       nsITreeColumn* GetCol() { return mCol.get(); }

    50       int32_t GetMin() { return mMin; }

    51       int32_t GetMax() { return mMax; }

    52       InvalidationArea* GetNext() { return mNext; }

    53       void SetNext(InvalidationArea* aNext) { mNext = aNext; }

    55     private:

    56       nsCOMPtr<nsITreeColumn> mCol;

    57       int32_t                 mMin;

    58       int32_t                 mMax;

    59       InvalidationArea*       mNext;

    60   };

    62   InvalidationArea* mInvalidationArea;

    63 };

    65 #endif // nsTreeImageListener_h__

The Tor Browser / file revision