The Tor Browser: layout/style/nsIStyleSheet.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 representing a collection of style data attached to a

     8  * document, which may be or be combined into a style rule processor

     9  */

    11 #ifndef nsIStyleSheet_h___

    12 #define nsIStyleSheet_h___

    14 #include "mozilla/MemoryReporting.h"

    15 #include <stdio.h>

    16 #include "nsISupports.h"

    18 class nsString;

    19 class nsIURI;

    20 class nsIDocument;

    22 // IID for the nsIStyleSheet interface

    23 // 3eb34a60-04bd-41d9-9f60-882694e61c38

    24 #define NS_ISTYLE_SHEET_IID     \

    25 { 0x3eb34a60, 0x04bd, 0x41d9,   \

    26  { 0x9f, 0x60, 0x88, 0x26, 0x94, 0xe6, 0x1c, 0x38 } }

    28 /**

    29  * A style sheet is a thing associated with a document that has style

    30  * rules.  Those style rules can be reached in one of two ways, depending

    31  * on which level of the nsStyleSet it is in:

    32  *   1) It can be |QueryInterface|d to nsIStyleRuleProcessor

    33  *   2) It can be |QueryInterface|d to nsCSSStyleSheet, with which the

    34  *      |nsStyleSet| uses an |nsCSSRuleProcessor| to access the rules.

    35  */

    36 class nsIStyleSheet : public nsISupports {

    37 public:

    38   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISTYLE_SHEET_IID)

    40   // basic style sheet data

    41   virtual nsIURI* GetSheetURI() const = 0;

    42   virtual nsIURI* GetBaseURI() const = 0;

    43   virtual void GetTitle(nsString& aTitle) const = 0;

    44   virtual void GetType(nsString& aType) const = 0;

    45   virtual bool HasRules() const = 0;

    47   /**

    48    * Whether the sheet is applicable.  A sheet that is not applicable

    49    * should never be inserted into a style set.  A sheet may not be

    50    * applicable for a variety of reasons including being disabled and

    51    * being incomplete.

    52    *

    53    */

    54   virtual bool IsApplicable() const = 0;

    56   /**

    57    * Set the stylesheet to be enabled.  This may or may not make it

    58    * applicable.  Note that this WILL inform the sheet's document of

    59    * its new applicable state if the state changes but WILL NOT call

    60    * BeginUpdate() or EndUpdate() on the document -- calling those is

    61    * the caller's responsibility.  This allows use of SetEnabled when

    62    * batched updates are desired.  If you want updates handled for

    63    * you, see nsIDOMStyleSheet::SetDisabled().

    64    */

    65   virtual void SetEnabled(bool aEnabled) = 0;

    67   /**

    68    * Whether the sheet is complete.

    69    */

    70   virtual bool IsComplete() const = 0;

    71   virtual void SetComplete() = 0;

    73   // style sheet owner info

    74   virtual nsIStyleSheet* GetParentSheet() const = 0;  // may be null

    75   virtual nsIDocument* GetOwningDocument() const = 0; // may be null

    76   virtual void SetOwningDocument(nsIDocument* aDocument) = 0;

    78 #ifdef DEBUG

    79   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const = 0;

    80 #endif

    82   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const = 0;

    83 };

    85 NS_DEFINE_STATIC_IID_ACCESSOR(nsIStyleSheet, NS_ISTYLE_SHEET_IID)

    87 #endif /* nsIStyleSheet_h___ */

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