The Tor Browser: layout/base/nsILayoutHistoryState.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 /*

     7  * interface for container for information saved in session history when

     8  * the document is not

     9  */

    11 #ifndef _nsILayoutHistoryState_h

    12 #define _nsILayoutHistoryState_h

    14 #include "nsISupports.h"

    15 #include "nsStringFwd.h"

    17 class nsPresState;

    18 template<typename> class already_AddRefed;

    20 #define NS_ILAYOUTHISTORYSTATE_IID \

    21 { 0x5208993e, 0xd812, 0x431e, \

    22   { 0x95, 0x9c, 0xc3, 0x84, 0x5b, 0x6e, 0x5a, 0xce } }

    24 class nsILayoutHistoryState : public nsISupports {

    25  public:

    26   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ILAYOUTHISTORYSTATE_IID)

    28   /**

    29    * Set |aState| as the state object for |aKey|.

    30    * This _transfers_ownership_ of |aState| to the LayoutHistoryState.

    31    * It will be freed when RemoveState() is called or when the

    32    * LayoutHistoryState is destroyed.

    33    */

    34   virtual void AddState(const nsCString& aKey, nsPresState* aState) = 0;

    36   /**

    37    * Look up the state object for |aKey|.

    38    */

    39   virtual nsPresState* GetState(const nsCString& aKey) = 0;

    41   /**

    42    * Remove the state object for |aKey|.

    43    */

    44   virtual void RemoveState(const nsCString& aKey) = 0;

    46   /**

    47    * Check whether this history has any states in it

    48    */

    49   virtual bool HasStates() const = 0;

    51   /**

    52    * Sets whether this history can contain only scroll position history

    53    * or all possible history

    54    */

    55   virtual void SetScrollPositionOnly(const bool aFlag) = 0;

    56 };

    58 NS_DEFINE_STATIC_IID_ACCESSOR(nsILayoutHistoryState,

    59                               NS_ILAYOUTHISTORYSTATE_IID)

    61 already_AddRefed<nsILayoutHistoryState>

    62 NS_NewLayoutHistoryState();

    64 #endif /* _nsILayoutHistoryState_h */

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