mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 09:05:45 +00:00
a8939590de
The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef ChangeStyleTxn_h__
|
|
#define ChangeStyleTxn_h__
|
|
|
|
#include "EditTxn.h" // base class
|
|
#include "nsCOMPtr.h" // nsCOMPtr members
|
|
#include "nsCycleCollectionParticipant.h" // various macros
|
|
#include "nsString.h" // nsString members
|
|
|
|
class nsAString;
|
|
class nsIAtom;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
class Element;
|
|
|
|
/**
|
|
* A transaction that changes the value of a CSS inline style of a content
|
|
* node. This transaction covers add, remove, and change a property's value.
|
|
*/
|
|
class ChangeStyleTxn : public EditTxn
|
|
{
|
|
public:
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ChangeStyleTxn, EditTxn)
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
NS_DECL_EDITTXN
|
|
|
|
NS_IMETHOD RedoTransaction() override;
|
|
|
|
enum EChangeType { eSet, eRemove };
|
|
|
|
/** @param aNode [IN] the node whose style attribute will be changed
|
|
* @param aProperty [IN] the name of the property to change
|
|
* @param aValue [IN] new value for aProperty, or value to remove
|
|
* @param aChangeType [IN] whether to set or remove
|
|
*/
|
|
ChangeStyleTxn(Element& aElement, nsIAtom& aProperty,
|
|
const nsAString& aValue, EChangeType aChangeType);
|
|
|
|
/** Returns true if the list of white-space separated values contains aValue
|
|
*
|
|
* @return true if the value is in the list of values
|
|
* @param aValueList [IN] a list of white-space separated values
|
|
* @param aValue [IN] the value to look for in the list
|
|
*/
|
|
static bool ValueIncludes(const nsAString& aValueList,
|
|
const nsAString& aValue);
|
|
|
|
private:
|
|
~ChangeStyleTxn();
|
|
|
|
/** Adds the value aNewValue to list of white-space separated values aValues
|
|
*
|
|
* @param aValues [IN/OUT] a list of wite-space separated values
|
|
* @param aNewValue [IN] a value this code adds to aValues if it is not already in
|
|
*/
|
|
void AddValueToMultivalueProperty(nsAString& aValues,
|
|
const nsAString& aNewValue);
|
|
|
|
/** Returns true if the property accepts more than one value
|
|
*
|
|
* @return true if the property accepts more than one value
|
|
* @param aCSSProperty [IN] the CSS property
|
|
*/
|
|
bool AcceptsMoreThanOneValue(nsIAtom& aCSSProperty);
|
|
|
|
/** Remove a value from a list of white-space separated values
|
|
* @param aValues [IN] a list of white-space separated values
|
|
* @param aRemoveValue [IN] the value to remove from the list
|
|
*/
|
|
void RemoveValueFromListOfValues(nsAString& aValues,
|
|
const nsAString& aRemoveValue);
|
|
|
|
/** If the boolean is true and if the value is not the empty string,
|
|
* set the property in the transaction to that value; if the value
|
|
* is empty, remove the property from element's styles. If the boolean
|
|
* is false, just remove the style attribute.
|
|
*/
|
|
nsresult SetStyle(bool aAttributeWasSet, nsAString& aValue);
|
|
|
|
/** The element to operate upon */
|
|
nsCOMPtr<Element> mElement;
|
|
|
|
/** The CSS property to change */
|
|
nsCOMPtr<nsIAtom> mProperty;
|
|
|
|
/** The value to set the property to (ignored if mRemoveProperty==true) */
|
|
nsString mValue;
|
|
|
|
/** true if the operation is to remove mProperty from mElement */
|
|
bool mRemoveProperty;
|
|
|
|
/** The value to set the property to for undo */
|
|
nsString mUndoValue;
|
|
/** The value to set the property to for redo */
|
|
nsString mRedoValue;
|
|
/** True if the style attribute was present and not empty before DoTransaction */
|
|
bool mUndoAttributeWasSet;
|
|
/** True if the style attribute is present and not empty after DoTransaction */
|
|
bool mRedoAttributeWasSet;
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif
|