The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/editor/libeditor/base/nsStyleSheetTxns.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,145 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +
    1.10 +#include <stddef.h>                     // for nullptr
    1.11 +
    1.12 +#include "nsAString.h"
    1.13 +#include "nsCOMPtr.h"                   // for nsCOMPtr, do_QueryInterface, etc
    1.14 +#include "nsCSSStyleSheet.h"            // for nsCSSStyleSheet
    1.15 +#include "nsDebug.h"                    // for NS_ENSURE_TRUE
    1.16 +#include "nsError.h"                    // for NS_OK, etc
    1.17 +#include "nsIDOMDocument.h"             // for nsIDOMDocument
    1.18 +#include "nsIDocument.h"                // for nsIDocument
    1.19 +#include "nsIDocumentObserver.h"        // for UPDATE_STYLE
    1.20 +#include "nsIEditor.h"                  // for nsIEditor
    1.21 +#include "nsStyleSheetTxns.h"
    1.22 +
    1.23 +class nsIStyleSheet;
    1.24 +
    1.25 +static void
    1.26 +AddStyleSheet(nsIEditor* aEditor, nsIStyleSheet* aSheet)
    1.27 +{
    1.28 +  nsCOMPtr<nsIDOMDocument> domDoc;
    1.29 +  aEditor->GetDocument(getter_AddRefs(domDoc));
    1.30 +  nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
    1.31 +  if (doc) {
    1.32 +    doc->BeginUpdate(UPDATE_STYLE);
    1.33 +    doc->AddStyleSheet(aSheet);
    1.34 +    doc->EndUpdate(UPDATE_STYLE);
    1.35 +  }
    1.36 +}
    1.37 +
    1.38 +static void
    1.39 +RemoveStyleSheet(nsIEditor *aEditor, nsIStyleSheet *aSheet)
    1.40 +{
    1.41 +  nsCOMPtr<nsIDOMDocument> domDoc;
    1.42 +  aEditor->GetDocument(getter_AddRefs(domDoc));
    1.43 +  nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
    1.44 +  if (doc) {
    1.45 +    doc->BeginUpdate(UPDATE_STYLE);
    1.46 +    doc->RemoveStyleSheet(aSheet);
    1.47 +    doc->EndUpdate(UPDATE_STYLE);
    1.48 +  }
    1.49 +}
    1.50 +
    1.51 +AddStyleSheetTxn::AddStyleSheetTxn()
    1.52 +:  EditTxn()
    1.53 +,  mEditor(nullptr)
    1.54 +{
    1.55 +}
    1.56 +
    1.57 +NS_IMPL_CYCLE_COLLECTION_INHERITED(AddStyleSheetTxn, EditTxn,
    1.58 +                                   mSheet)
    1.59 +
    1.60 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AddStyleSheetTxn)
    1.61 +NS_INTERFACE_MAP_END_INHERITING(EditTxn)
    1.62 +
    1.63 +NS_IMETHODIMP
    1.64 +AddStyleSheetTxn::Init(nsIEditor *aEditor, nsCSSStyleSheet *aSheet)
    1.65 +{
    1.66 +  NS_ENSURE_TRUE(aEditor && aSheet, NS_ERROR_INVALID_ARG);
    1.67 +
    1.68 +  mEditor = aEditor;
    1.69 +  mSheet = aSheet;
    1.70 +
    1.71 +  return NS_OK;
    1.72 +}
    1.73 +
    1.74 +
    1.75 +NS_IMETHODIMP
    1.76 +AddStyleSheetTxn::DoTransaction()
    1.77 +{
    1.78 +  NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
    1.79 +
    1.80 +  AddStyleSheet(mEditor, mSheet);
    1.81 +  return NS_OK;
    1.82 +}
    1.83 +
    1.84 +NS_IMETHODIMP
    1.85 +AddStyleSheetTxn::UndoTransaction()
    1.86 +{
    1.87 +  NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
    1.88 +
    1.89 +  RemoveStyleSheet(mEditor, mSheet);
    1.90 +  return NS_OK;
    1.91 +}
    1.92 +
    1.93 +NS_IMETHODIMP
    1.94 +AddStyleSheetTxn::GetTxnDescription(nsAString& aString)
    1.95 +{
    1.96 +  aString.AssignLiteral("AddStyleSheetTxn");
    1.97 +  return NS_OK;
    1.98 +}
    1.99 +
   1.100 +
   1.101 +RemoveStyleSheetTxn::RemoveStyleSheetTxn()
   1.102 +:  EditTxn()
   1.103 +,  mEditor(nullptr)
   1.104 +{
   1.105 +}
   1.106 +
   1.107 +NS_IMPL_CYCLE_COLLECTION_INHERITED(RemoveStyleSheetTxn, EditTxn,
   1.108 +                                   mSheet)
   1.109 +
   1.110 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(RemoveStyleSheetTxn)
   1.111 +NS_INTERFACE_MAP_END_INHERITING(EditTxn)
   1.112 +
   1.113 +NS_IMETHODIMP
   1.114 +RemoveStyleSheetTxn::Init(nsIEditor *aEditor, nsCSSStyleSheet *aSheet)
   1.115 +{
   1.116 +  NS_ENSURE_TRUE(aEditor && aSheet, NS_ERROR_INVALID_ARG);
   1.117 +
   1.118 +  mEditor = aEditor;
   1.119 +  mSheet = aSheet;
   1.120 +
   1.121 +  return NS_OK;
   1.122 +}
   1.123 +
   1.124 +
   1.125 +NS_IMETHODIMP
   1.126 +RemoveStyleSheetTxn::DoTransaction()
   1.127 +{
   1.128 +  NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
   1.129 +
   1.130 +  RemoveStyleSheet(mEditor, mSheet);
   1.131 +  return NS_OK;
   1.132 +}
   1.133 +
   1.134 +NS_IMETHODIMP
   1.135 +RemoveStyleSheetTxn::UndoTransaction()
   1.136 +{
   1.137 +  NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
   1.138 +
   1.139 +  AddStyleSheet(mEditor, mSheet);
   1.140 +  return NS_OK;
   1.141 +}
   1.142 +
   1.143 +NS_IMETHODIMP
   1.144 +RemoveStyleSheetTxn::GetTxnDescription(nsAString& aString)
   1.145 +{
   1.146 +  aString.AssignLiteral("RemoveStyleSheetTxn");
   1.147 +  return NS_OK;
   1.148 +}