The Tor Browser: dom/smil/nsSMILSetAnimationFunction.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 NS_SMILSETANIMATIONFUNCTION_H_

     7 #define NS_SMILSETANIMATIONFUNCTION_H_

     9 #include "mozilla/Attributes.h"

    10 #include "nsSMILAnimationFunction.h"

    12 //----------------------------------------------------------------------

    13 // nsSMILSetAnimationFunction

    14 //

    15 // Subclass of nsSMILAnimationFunction that limits the behaviour to that offered

    16 // by a <set> element.

    17 //

    18 class nsSMILSetAnimationFunction : public nsSMILAnimationFunction

    19 {

    20 public:

    21   /*

    22    * Sets animation-specific attributes (or marks them dirty, in the case

    23    * of from/to/by/values).

    24    *

    25    * @param aAttribute The attribute being set

    26    * @param aValue     The updated value of the attribute.

    27    * @param aResult    The nsAttrValue object that may be used for storing the

    28    *                   parsed result.

    29    * @param aParseResult  Outparam used for reporting parse errors. Will be set

    30    *                      to NS_OK if everything succeeds.

    31    * @returns true if aAttribute is a recognized animation-related

    32    *          attribute; false otherwise.

    33    */

    34   virtual bool SetAttr(nsIAtom* aAttribute, const nsAString& aValue,

    35                          nsAttrValue& aResult, nsresult* aParseResult = nullptr) MOZ_OVERRIDE;

    37   /*

    38    * Unsets the given attribute.

    39    *

    40    * @returns true if aAttribute is a recognized animation-related

    41    *          attribute; false otherwise.

    42    */

    43   virtual bool UnsetAttr(nsIAtom* aAttribute) MOZ_OVERRIDE;

    45 protected:

    46   // Although <set> animation might look like to-animation, unlike to-animation,

    47   // it never interpolates values.

    48   // Returning false here will mean this animation function gets treated as

    49   // a single-valued function and no interpolation will be attempted.

    50   virtual bool IsToAnimation() const MOZ_OVERRIDE {

    51     return false;

    52   }

    54   // <set> applies the exact same value across the simple duration.

    55   virtual bool IsValueFixedForSimpleDuration() const MOZ_OVERRIDE {

    56     return true;

    57   }

    58   virtual bool               HasAttr(nsIAtom* aAttName) const MOZ_OVERRIDE;

    59   virtual const nsAttrValue* GetAttr(nsIAtom* aAttName) const MOZ_OVERRIDE;

    60   virtual bool               GetAttr(nsIAtom* aAttName,

    61                                      nsAString& aResult) const MOZ_OVERRIDE;

    62   virtual bool WillReplace() const MOZ_OVERRIDE;

    64   bool IsDisallowedAttribute(const nsIAtom* aAttribute) const;

    65 };

    67 #endif // NS_SMILSETANIMATIONFUNCTION_H_

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