editor/composer/src/nsComposerCommands.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/editor/composer/src/nsComposerCommands.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,1532 @@
     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 <stdio.h>                      // for printf
    1.11 +
    1.12 +#include "mozilla/Assertions.h"         // for MOZ_ASSERT, etc
    1.13 +#include "nsAString.h"
    1.14 +#include "nsCOMPtr.h"                   // for nsCOMPtr, do_QueryInterface, etc
    1.15 +#include "nsComponentManagerUtils.h"    // for do_CreateInstance
    1.16 +#include "nsComposerCommands.h"
    1.17 +#include "nsDebug.h"                    // for NS_ENSURE_TRUE, etc
    1.18 +#include "nsError.h"                    // for NS_OK, NS_ERROR_FAILURE, etc
    1.19 +#include "nsGkAtoms.h"                  // for nsGkAtoms, nsGkAtoms::font, etc
    1.20 +#include "nsIAtom.h"                    // for nsIAtom, etc
    1.21 +#include "nsIClipboard.h"               // for nsIClipboard, etc
    1.22 +#include "nsICommandParams.h"           // for nsICommandParams, etc
    1.23 +#include "nsID.h"
    1.24 +#include "nsIDOMElement.h"              // for nsIDOMElement
    1.25 +#include "nsIEditor.h"                  // for nsIEditor
    1.26 +#include "nsIHTMLAbsPosEditor.h"        // for nsIHTMLAbsPosEditor
    1.27 +#include "nsIHTMLEditor.h"              // for nsIHTMLEditor, etc
    1.28 +#include "nsLiteralString.h"            // for NS_LITERAL_STRING
    1.29 +#include "nsReadableUtils.h"            // for EmptyString
    1.30 +#include "nsString.h"                   // for nsAutoString, nsString, etc
    1.31 +#include "nsStringFwd.h"                // for nsAFlatString
    1.32 +
    1.33 +class nsISupports;
    1.34 +
    1.35 +//prototype
    1.36 +nsresult GetListState(nsIHTMLEditor* aEditor, bool* aMixed,
    1.37 +                      nsAString& aLocalName);
    1.38 +nsresult RemoveOneProperty(nsIHTMLEditor* aEditor, const nsAString& aProp);
    1.39 +nsresult RemoveTextProperty(nsIHTMLEditor* aEditor, const nsAString& aProp);
    1.40 +nsresult SetTextProperty(nsIHTMLEditor *aEditor, const nsAString& aProp);
    1.41 +
    1.42 +
    1.43 +//defines
    1.44 +#define STATE_ENABLED  "state_enabled"
    1.45 +#define STATE_ALL "state_all"
    1.46 +#define STATE_ANY "state_any"
    1.47 +#define STATE_MIXED "state_mixed"
    1.48 +#define STATE_BEGIN "state_begin"
    1.49 +#define STATE_END "state_end"
    1.50 +#define STATE_ATTRIBUTE "state_attribute"
    1.51 +#define STATE_DATA "state_data"
    1.52 +
    1.53 +
    1.54 +nsBaseComposerCommand::nsBaseComposerCommand()
    1.55 +{
    1.56 +}
    1.57 +
    1.58 +NS_IMPL_ISUPPORTS(nsBaseComposerCommand, nsIControllerCommand)
    1.59 +
    1.60 +
    1.61 +nsBaseStateUpdatingCommand::nsBaseStateUpdatingCommand(nsIAtom* aTagName)
    1.62 +: nsBaseComposerCommand()
    1.63 +, mTagName(aTagName)
    1.64 +{
    1.65 +  MOZ_ASSERT(mTagName);
    1.66 +}
    1.67 +
    1.68 +nsBaseStateUpdatingCommand::~nsBaseStateUpdatingCommand()
    1.69 +{
    1.70 +}
    1.71 +
    1.72 +NS_IMPL_ISUPPORTS_INHERITED0(nsBaseStateUpdatingCommand, nsBaseComposerCommand)
    1.73 +
    1.74 +NS_IMETHODIMP
    1.75 +nsBaseStateUpdatingCommand::IsCommandEnabled(const char *aCommandName,
    1.76 +                                             nsISupports *refCon,
    1.77 +                                             bool *outCmdEnabled)
    1.78 +{
    1.79 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
    1.80 +  if (editor)
    1.81 +    return editor->GetIsSelectionEditable(outCmdEnabled);
    1.82 +
    1.83 +  *outCmdEnabled = false;
    1.84 +  return NS_OK;
    1.85 +}
    1.86 +
    1.87 +
    1.88 +NS_IMETHODIMP
    1.89 +nsBaseStateUpdatingCommand::DoCommand(const char *aCommandName,
    1.90 +                                      nsISupports *refCon)
    1.91 +{
    1.92 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
    1.93 +  NS_ENSURE_TRUE(editor, NS_ERROR_NOT_INITIALIZED);
    1.94 +
    1.95 +  return ToggleState(editor);
    1.96 +}
    1.97 +
    1.98 +NS_IMETHODIMP
    1.99 +nsBaseStateUpdatingCommand::DoCommandParams(const char *aCommandName,
   1.100 +                                            nsICommandParams *aParams,
   1.101 +                                            nsISupports *refCon)
   1.102 +{
   1.103 +  return DoCommand(aCommandName, refCon);
   1.104 +}
   1.105 +
   1.106 +NS_IMETHODIMP
   1.107 +nsBaseStateUpdatingCommand::GetCommandStateParams(const char *aCommandName, 
   1.108 +                                                  nsICommandParams *aParams,
   1.109 +                                                  nsISupports *refCon)
   1.110 +{
   1.111 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.112 +  if (editor)
   1.113 +    return GetCurrentState(editor, aParams);
   1.114 +
   1.115 +  return NS_OK;
   1.116 +}
   1.117 +
   1.118 +NS_IMETHODIMP
   1.119 +nsPasteNoFormattingCommand::IsCommandEnabled(const char * aCommandName, 
   1.120 +                                             nsISupports *refCon, 
   1.121 +                                             bool *outCmdEnabled)
   1.122 +{
   1.123 +  NS_ENSURE_ARG_POINTER(outCmdEnabled);
   1.124 +  *outCmdEnabled = false;
   1.125 +
   1.126 +  // This command is only implemented by nsIHTMLEditor, since
   1.127 +  //  pasting in a plaintext editor automatically only supplies 
   1.128 +  //  "unformatted" text
   1.129 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(refCon);
   1.130 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NOT_IMPLEMENTED);
   1.131 +
   1.132 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(htmlEditor);
   1.133 +  NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
   1.134 +
   1.135 +  return editor->CanPaste(nsIClipboard::kGlobalClipboard, outCmdEnabled);
   1.136 +}
   1.137 +
   1.138 +
   1.139 +NS_IMETHODIMP
   1.140 +nsPasteNoFormattingCommand::DoCommand(const char *aCommandName,
   1.141 +                                      nsISupports *refCon)
   1.142 +{
   1.143 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(refCon);
   1.144 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NOT_IMPLEMENTED);
   1.145 +
   1.146 +  return htmlEditor->PasteNoFormatting(nsIClipboard::kGlobalClipboard);
   1.147 +}
   1.148 +
   1.149 +NS_IMETHODIMP
   1.150 +nsPasteNoFormattingCommand::DoCommandParams(const char *aCommandName,
   1.151 +                                            nsICommandParams *aParams, 
   1.152 +                                            nsISupports *refCon)
   1.153 +{
   1.154 +  return DoCommand(aCommandName, refCon);
   1.155 +}
   1.156 +
   1.157 +NS_IMETHODIMP
   1.158 +nsPasteNoFormattingCommand::GetCommandStateParams(const char *aCommandName,
   1.159 +                                                  nsICommandParams *aParams,
   1.160 +                                                  nsISupports *refCon)
   1.161 +{
   1.162 +  NS_ENSURE_ARG_POINTER(aParams);
   1.163 +
   1.164 +  bool enabled = false;
   1.165 +  nsresult rv = IsCommandEnabled(aCommandName, refCon, &enabled);
   1.166 +  NS_ENSURE_SUCCESS(rv, rv);
   1.167 +
   1.168 +  return aParams->SetBooleanValue(STATE_ENABLED, enabled);
   1.169 +}
   1.170 +
   1.171 +nsStyleUpdatingCommand::nsStyleUpdatingCommand(nsIAtom* aTagName)
   1.172 +: nsBaseStateUpdatingCommand(aTagName)
   1.173 +{
   1.174 +}
   1.175 +
   1.176 +nsresult
   1.177 +nsStyleUpdatingCommand::GetCurrentState(nsIEditor *aEditor, 
   1.178 +                                        nsICommandParams *aParams)
   1.179 +{
   1.180 +  NS_ASSERTION(aEditor, "Need editor here");
   1.181 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.182 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NOT_INITIALIZED);
   1.183 +  
   1.184 +  bool firstOfSelectionHasProp = false;
   1.185 +  bool anyOfSelectionHasProp = false;
   1.186 +  bool allOfSelectionHasProp = false;
   1.187 +
   1.188 +  nsresult rv = htmlEditor->GetInlineProperty(mTagName, EmptyString(),
   1.189 +                                              EmptyString(),
   1.190 +                                              &firstOfSelectionHasProp,
   1.191 +                                              &anyOfSelectionHasProp,
   1.192 +                                              &allOfSelectionHasProp);
   1.193 +
   1.194 +  aParams->SetBooleanValue(STATE_ENABLED, NS_SUCCEEDED(rv));
   1.195 +  aParams->SetBooleanValue(STATE_ALL, allOfSelectionHasProp);
   1.196 +  aParams->SetBooleanValue(STATE_ANY, anyOfSelectionHasProp);
   1.197 +  aParams->SetBooleanValue(STATE_MIXED, anyOfSelectionHasProp
   1.198 +           && !allOfSelectionHasProp);
   1.199 +  aParams->SetBooleanValue(STATE_BEGIN, firstOfSelectionHasProp);
   1.200 +  aParams->SetBooleanValue(STATE_END, allOfSelectionHasProp);//not completely accurate
   1.201 +  return NS_OK;
   1.202 +}
   1.203 +
   1.204 +nsresult
   1.205 +nsStyleUpdatingCommand::ToggleState(nsIEditor *aEditor)
   1.206 +{
   1.207 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.208 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NO_INTERFACE);
   1.209 +
   1.210 +  //create some params now...
   1.211 +  nsresult rv;
   1.212 +  nsCOMPtr<nsICommandParams> params =
   1.213 +      do_CreateInstance(NS_COMMAND_PARAMS_CONTRACTID,&rv);
   1.214 +  if (NS_FAILED(rv) || !params)
   1.215 +    return rv;
   1.216 +
   1.217 +  // tags "href" and "name" are special cases in the core editor 
   1.218 +  // they are used to remove named anchor/link and shouldn't be used for insertion
   1.219 +  bool doTagRemoval;
   1.220 +  if (mTagName == nsGkAtoms::href || mTagName == nsGkAtoms::name) {
   1.221 +    doTagRemoval = true;
   1.222 +  } else {
   1.223 +    // check current selection; set doTagRemoval if formatting should be removed
   1.224 +    rv = GetCurrentState(aEditor, params);
   1.225 +    NS_ENSURE_SUCCESS(rv, rv);
   1.226 +    rv = params->GetBooleanValue(STATE_ALL, &doTagRemoval);
   1.227 +    NS_ENSURE_SUCCESS(rv, rv);
   1.228 +  }
   1.229 +
   1.230 +  if (doTagRemoval) {
   1.231 +    // Also remove equivalent properties (bug 317093)
   1.232 +    if (mTagName == nsGkAtoms::b) {
   1.233 +      rv = RemoveTextProperty(htmlEditor, NS_LITERAL_STRING("strong"));
   1.234 +      NS_ENSURE_SUCCESS(rv, rv);
   1.235 +    } else if (mTagName == nsGkAtoms::i) {
   1.236 +      rv = RemoveTextProperty(htmlEditor, NS_LITERAL_STRING("em"));
   1.237 +      NS_ENSURE_SUCCESS(rv, rv);
   1.238 +    } else if (mTagName == nsGkAtoms::strike) {
   1.239 +      rv = RemoveTextProperty(htmlEditor, NS_LITERAL_STRING("s"));
   1.240 +      NS_ENSURE_SUCCESS(rv, rv);
   1.241 +    }
   1.242 +
   1.243 +    rv = RemoveTextProperty(htmlEditor, nsDependentAtomString(mTagName));
   1.244 +  } else {
   1.245 +    // Superscript and Subscript styles are mutually exclusive
   1.246 +    aEditor->BeginTransaction();
   1.247 +
   1.248 +    nsDependentAtomString tagName(mTagName);
   1.249 +    if (mTagName == nsGkAtoms::sub || mTagName == nsGkAtoms::sup) {
   1.250 +      rv = RemoveTextProperty(htmlEditor, tagName);
   1.251 +    }
   1.252 +    if (NS_SUCCEEDED(rv))
   1.253 +      rv = SetTextProperty(htmlEditor, tagName);
   1.254 +
   1.255 +    aEditor->EndTransaction();
   1.256 +  }
   1.257 +
   1.258 +  return rv;
   1.259 +}
   1.260 +
   1.261 +nsListCommand::nsListCommand(nsIAtom* aTagName)
   1.262 +: nsBaseStateUpdatingCommand(aTagName)
   1.263 +{
   1.264 +}
   1.265 +
   1.266 +nsresult
   1.267 +nsListCommand::GetCurrentState(nsIEditor* aEditor, nsICommandParams* aParams)
   1.268 +{
   1.269 +  NS_ASSERTION(aEditor, "Need editor here");
   1.270 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.271 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NO_INTERFACE);
   1.272 +
   1.273 +  bool bMixed;
   1.274 +  nsAutoString localName;
   1.275 +  nsresult rv = GetListState(htmlEditor, &bMixed, localName);
   1.276 +  NS_ENSURE_SUCCESS(rv, rv);
   1.277 +
   1.278 +  bool inList = mTagName->Equals(localName);
   1.279 +  aParams->SetBooleanValue(STATE_ALL, !bMixed && inList);
   1.280 +  aParams->SetBooleanValue(STATE_MIXED, bMixed);
   1.281 +  aParams->SetBooleanValue(STATE_ENABLED, true);
   1.282 +  return NS_OK;
   1.283 +}
   1.284 +
   1.285 +nsresult
   1.286 +nsListCommand::ToggleState(nsIEditor *aEditor)
   1.287 +{
   1.288 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(aEditor);
   1.289 +  NS_ENSURE_TRUE(editor, NS_NOINTERFACE);
   1.290 +
   1.291 +  nsresult rv;
   1.292 +  nsCOMPtr<nsICommandParams> params =
   1.293 +      do_CreateInstance(NS_COMMAND_PARAMS_CONTRACTID,&rv);
   1.294 +  if (NS_FAILED(rv) || !params)
   1.295 +    return rv;
   1.296 +
   1.297 +  rv = GetCurrentState(aEditor, params);
   1.298 +  NS_ENSURE_SUCCESS(rv, rv);
   1.299 +
   1.300 +  bool inList;
   1.301 +  rv = params->GetBooleanValue(STATE_ALL,&inList);
   1.302 +  NS_ENSURE_SUCCESS(rv, rv);
   1.303 +
   1.304 +  nsDependentAtomString listType(mTagName);
   1.305 +  if (inList) {
   1.306 +    rv = editor->RemoveList(listType);    
   1.307 +  } else {
   1.308 +    rv = editor->MakeOrChangeList(listType, false, EmptyString());
   1.309 +  }
   1.310 +  
   1.311 +  return rv;
   1.312 +}
   1.313 +
   1.314 +nsListItemCommand::nsListItemCommand(nsIAtom* aTagName)
   1.315 +: nsBaseStateUpdatingCommand(aTagName)
   1.316 +{
   1.317 +}
   1.318 +
   1.319 +nsresult
   1.320 +nsListItemCommand::GetCurrentState(nsIEditor* aEditor,
   1.321 +                                   nsICommandParams *aParams)
   1.322 +{
   1.323 +  NS_ASSERTION(aEditor, "Need editor here");
   1.324 +  // 39584
   1.325 +  nsCOMPtr<nsIHTMLEditor>  htmlEditor = do_QueryInterface(aEditor);
   1.326 +  NS_ENSURE_TRUE(htmlEditor, NS_NOINTERFACE);
   1.327 +
   1.328 +  bool bMixed, bLI, bDT, bDD;
   1.329 +  nsresult rv = htmlEditor->GetListItemState(&bMixed, &bLI, &bDT, &bDD);
   1.330 +  NS_ENSURE_SUCCESS(rv, rv);
   1.331 +
   1.332 +  bool inList = false;
   1.333 +  if (!bMixed)
   1.334 +  {
   1.335 +    if (bLI) {
   1.336 +      inList = mTagName == nsGkAtoms::li;
   1.337 +    } else if (bDT) {
   1.338 +      inList = mTagName == nsGkAtoms::dt;
   1.339 +    } else if (bDD) {
   1.340 +      inList = mTagName == nsGkAtoms::dd;
   1.341 +    }
   1.342 +  }
   1.343 +
   1.344 +  aParams->SetBooleanValue(STATE_ALL, !bMixed && inList);
   1.345 +  aParams->SetBooleanValue(STATE_MIXED, bMixed);
   1.346 +
   1.347 +  return NS_OK;
   1.348 +}
   1.349 +
   1.350 +nsresult
   1.351 +nsListItemCommand::ToggleState(nsIEditor *aEditor)
   1.352 +{
   1.353 +  NS_ASSERTION(aEditor, "Need editor here");
   1.354 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.355 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NOT_INITIALIZED);
   1.356 +
   1.357 +  bool inList;
   1.358 +  // Need to use mTagName????
   1.359 +  nsresult rv;
   1.360 +  nsCOMPtr<nsICommandParams> params =
   1.361 +      do_CreateInstance(NS_COMMAND_PARAMS_CONTRACTID,&rv);
   1.362 +  if (NS_FAILED(rv) || !params)
   1.363 +    return rv;
   1.364 +  rv = GetCurrentState(aEditor, params);
   1.365 +  rv = params->GetBooleanValue(STATE_ALL,&inList);
   1.366 +  NS_ENSURE_SUCCESS(rv, rv);
   1.367 +  NS_ENSURE_SUCCESS(rv, rv);
   1.368 +  
   1.369 +  if (inList) {
   1.370 +    // To remove a list, first get what kind of list we're in
   1.371 +    bool bMixed;
   1.372 +    nsAutoString localName;
   1.373 +    rv = GetListState(htmlEditor, &bMixed, localName);
   1.374 +    NS_ENSURE_SUCCESS(rv, rv); 
   1.375 +    if (localName.IsEmpty() || bMixed) {
   1.376 +      return rv;
   1.377 +    }
   1.378 +    return htmlEditor->RemoveList(localName);
   1.379 +  }
   1.380 +
   1.381 +  // Set to the requested paragraph type
   1.382 +  //XXX Note: This actually doesn't work for "LI",
   1.383 +  //    but we currently don't use this for non DL lists anyway.
   1.384 +  // Problem: won't this replace any current block paragraph style?
   1.385 +  return htmlEditor->SetParagraphFormat(nsDependentAtomString(mTagName));
   1.386 +}
   1.387 +
   1.388 +NS_IMETHODIMP
   1.389 +nsRemoveListCommand::IsCommandEnabled(const char * aCommandName,
   1.390 +                                      nsISupports *refCon,
   1.391 +                                      bool *outCmdEnabled)
   1.392 +{
   1.393 +  *outCmdEnabled = false;
   1.394 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.395 +  NS_ENSURE_TRUE(editor, NS_OK);
   1.396 +
   1.397 +  bool isEditable = false;
   1.398 +  nsresult rv = editor->GetIsSelectionEditable(&isEditable);
   1.399 +  NS_ENSURE_SUCCESS(rv, rv);
   1.400 +  if (!isEditable) {
   1.401 +    return NS_OK;
   1.402 +  }
   1.403 +
   1.404 +  // It is enabled if we are in any list type
   1.405 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(refCon);
   1.406 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NO_INTERFACE);
   1.407 +
   1.408 +  bool bMixed;
   1.409 +  nsAutoString localName;
   1.410 +  rv = GetListState(htmlEditor, &bMixed, localName);
   1.411 +  NS_ENSURE_SUCCESS(rv, rv);
   1.412 +
   1.413 +  *outCmdEnabled = bMixed || !localName.IsEmpty();
   1.414 +  return NS_OK;
   1.415 +}
   1.416 +
   1.417 +
   1.418 +NS_IMETHODIMP
   1.419 +nsRemoveListCommand::DoCommand(const char *aCommandName, nsISupports *refCon)
   1.420 +{
   1.421 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
   1.422 +
   1.423 +  nsresult rv = NS_OK;
   1.424 +  if (editor)
   1.425 +  {
   1.426 +    // This removes any list type
   1.427 +    rv = editor->RemoveList(EmptyString());
   1.428 +  }
   1.429 +
   1.430 +  return rv;  
   1.431 +}
   1.432 +
   1.433 +NS_IMETHODIMP
   1.434 +nsRemoveListCommand::DoCommandParams(const char *aCommandName, 
   1.435 +                                     nsICommandParams *aParams,
   1.436 +                                     nsISupports *refCon)
   1.437 +{
   1.438 +  return DoCommand(aCommandName, refCon);
   1.439 +}
   1.440 +
   1.441 +NS_IMETHODIMP
   1.442 +nsRemoveListCommand::GetCommandStateParams(const char *aCommandName,
   1.443 +                                           nsICommandParams *aParams, 
   1.444 +                                           nsISupports *refCon)
   1.445 +{
   1.446 +  bool outCmdEnabled = false;
   1.447 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
   1.448 +  return aParams->SetBooleanValue(STATE_ENABLED,outCmdEnabled);
   1.449 +}
   1.450 +
   1.451 +NS_IMETHODIMP
   1.452 +nsIndentCommand::IsCommandEnabled(const char * aCommandName,
   1.453 +                                  nsISupports *refCon, bool *outCmdEnabled)
   1.454 +{
   1.455 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.456 +  if (editor)
   1.457 +    return editor->GetIsSelectionEditable(outCmdEnabled);
   1.458 +
   1.459 +  *outCmdEnabled = false;
   1.460 +  return NS_OK;
   1.461 +}
   1.462 +
   1.463 +
   1.464 +NS_IMETHODIMP
   1.465 +nsIndentCommand::DoCommand(const char *aCommandName, nsISupports *refCon)
   1.466 +{
   1.467 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
   1.468 +
   1.469 +  nsresult rv = NS_OK;
   1.470 +  if (editor)
   1.471 +  {
   1.472 +    rv = editor->Indent(NS_LITERAL_STRING("indent"));
   1.473 +  }
   1.474 +  
   1.475 +  return rv;  
   1.476 +}
   1.477 +
   1.478 +NS_IMETHODIMP
   1.479 +nsIndentCommand::DoCommandParams(const char *aCommandName,
   1.480 +                                 nsICommandParams *aParams,
   1.481 +                                 nsISupports *refCon)
   1.482 +{
   1.483 +  return DoCommand(aCommandName, refCon);  
   1.484 +}
   1.485 +
   1.486 +NS_IMETHODIMP
   1.487 +nsIndentCommand::GetCommandStateParams(const char *aCommandName,
   1.488 +                                       nsICommandParams *aParams,
   1.489 +                                       nsISupports *refCon)
   1.490 +{
   1.491 +  bool outCmdEnabled = false;
   1.492 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
   1.493 +  return aParams->SetBooleanValue(STATE_ENABLED,outCmdEnabled);
   1.494 +}
   1.495 +
   1.496 +
   1.497 +//OUTDENT
   1.498 +
   1.499 +NS_IMETHODIMP
   1.500 +nsOutdentCommand::IsCommandEnabled(const char * aCommandName,
   1.501 +                                   nsISupports *refCon,
   1.502 +                                   bool *outCmdEnabled)
   1.503 +{
   1.504 +  *outCmdEnabled = false;
   1.505 +
   1.506 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.507 +  if (editor) {
   1.508 +    nsresult rv = editor->GetIsSelectionEditable(outCmdEnabled);
   1.509 +    NS_ENSURE_SUCCESS(rv, rv);
   1.510 +  }
   1.511 +
   1.512 +  return NS_OK;
   1.513 +}
   1.514 +
   1.515 +
   1.516 +NS_IMETHODIMP
   1.517 +nsOutdentCommand::DoCommand(const char *aCommandName, nsISupports *refCon)
   1.518 +{
   1.519 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(refCon);
   1.520 +  if (htmlEditor)
   1.521 +    return htmlEditor->Indent(NS_LITERAL_STRING("outdent"));
   1.522 +  
   1.523 +  return NS_OK;  
   1.524 +}
   1.525 +
   1.526 +NS_IMETHODIMP
   1.527 +nsOutdentCommand::DoCommandParams(const char *aCommandName,
   1.528 +                                  nsICommandParams *aParams, 
   1.529 +                                  nsISupports *refCon)
   1.530 +{
   1.531 +  return DoCommand(aCommandName, refCon);  
   1.532 +}
   1.533 +
   1.534 +NS_IMETHODIMP
   1.535 +nsOutdentCommand::GetCommandStateParams(const char *aCommandName,
   1.536 +                                        nsICommandParams *aParams,
   1.537 +                                        nsISupports *refCon)
   1.538 +{
   1.539 +  bool outCmdEnabled = false;
   1.540 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
   1.541 +  return aParams->SetBooleanValue(STATE_ENABLED,outCmdEnabled);
   1.542 +}
   1.543 +
   1.544 +nsMultiStateCommand::nsMultiStateCommand()
   1.545 +: nsBaseComposerCommand()
   1.546 +{
   1.547 +}
   1.548 +
   1.549 +nsMultiStateCommand::~nsMultiStateCommand()
   1.550 +{
   1.551 +}
   1.552 +
   1.553 +NS_IMPL_ISUPPORTS_INHERITED0(nsMultiStateCommand, nsBaseComposerCommand)
   1.554 +
   1.555 +NS_IMETHODIMP
   1.556 +nsMultiStateCommand::IsCommandEnabled(const char * aCommandName,
   1.557 +                                      nsISupports *refCon,
   1.558 +                                      bool *outCmdEnabled)
   1.559 +{
   1.560 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.561 +  // should be disabled sometimes, like if the current selection is an image
   1.562 +  if (editor)
   1.563 +    return editor->GetIsSelectionEditable(outCmdEnabled);
   1.564 +
   1.565 +  *outCmdEnabled = false;
   1.566 +  return NS_OK; 
   1.567 +}
   1.568 +
   1.569 +
   1.570 +NS_IMETHODIMP
   1.571 +nsMultiStateCommand::DoCommand(const char *aCommandName, nsISupports *refCon)
   1.572 +{
   1.573 +#ifdef DEBUG
   1.574 +  printf("who is calling nsMultiStateCommand::DoCommand \
   1.575 +          (no implementation)? %s\n", aCommandName);
   1.576 +#endif
   1.577 +  
   1.578 +  return NS_OK;  
   1.579 +}
   1.580 +
   1.581 +NS_IMETHODIMP
   1.582 +nsMultiStateCommand::DoCommandParams(const char *aCommandName,
   1.583 +                                     nsICommandParams *aParams,
   1.584 +                                     nsISupports *refCon)
   1.585 +{
   1.586 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.587 +
   1.588 +  nsresult rv = NS_OK;
   1.589 +  if (editor)
   1.590 +  {
   1.591 +      nsAutoString tString;
   1.592 +
   1.593 +      if (aParams) {
   1.594 +        nsXPIDLCString s;
   1.595 +        rv = aParams->GetCStringValue(STATE_ATTRIBUTE, getter_Copies(s));
   1.596 +        if (NS_SUCCEEDED(rv))
   1.597 +          tString.AssignWithConversion(s);
   1.598 +        else
   1.599 +          rv = aParams->GetStringValue(STATE_ATTRIBUTE, tString);
   1.600 +      }
   1.601 +
   1.602 +      rv = SetState(editor, tString);
   1.603 +  }
   1.604 +  
   1.605 +  return rv;  
   1.606 +}
   1.607 +
   1.608 +NS_IMETHODIMP
   1.609 +nsMultiStateCommand::GetCommandStateParams(const char *aCommandName,
   1.610 +                                           nsICommandParams *aParams,
   1.611 +                                           nsISupports *refCon)
   1.612 +{
   1.613 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.614 +  nsresult rv = NS_OK;
   1.615 +  if (editor)
   1.616 +  {
   1.617 +      rv = GetCurrentState(editor, aParams);
   1.618 +  }
   1.619 +  return rv;
   1.620 +}
   1.621 +
   1.622 +nsParagraphStateCommand::nsParagraphStateCommand()
   1.623 +: nsMultiStateCommand()
   1.624 +{
   1.625 +}
   1.626 +
   1.627 +nsresult
   1.628 +nsParagraphStateCommand::GetCurrentState(nsIEditor *aEditor,
   1.629 +                                         nsICommandParams *aParams)
   1.630 +{
   1.631 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.632 +  
   1.633 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.634 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.635 +
   1.636 +  bool outMixed;
   1.637 +  nsAutoString outStateString;
   1.638 +  nsresult rv = htmlEditor->GetParagraphState(&outMixed, outStateString);
   1.639 +  if (NS_SUCCEEDED(rv))
   1.640 +  {
   1.641 +    nsAutoCString tOutStateString;
   1.642 +    tOutStateString.AssignWithConversion(outStateString);
   1.643 +    aParams->SetBooleanValue(STATE_MIXED,outMixed);
   1.644 +    aParams->SetCStringValue(STATE_ATTRIBUTE, tOutStateString.get());
   1.645 +  }
   1.646 +  return rv;
   1.647 +}
   1.648 +
   1.649 +
   1.650 +nsresult
   1.651 +nsParagraphStateCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.652 +{
   1.653 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.654 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.655 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.656 +
   1.657 +  return htmlEditor->SetParagraphFormat(newState);
   1.658 +}
   1.659 +
   1.660 +nsFontFaceStateCommand::nsFontFaceStateCommand()
   1.661 +: nsMultiStateCommand()
   1.662 +{
   1.663 +}
   1.664 +
   1.665 +nsresult
   1.666 +nsFontFaceStateCommand::GetCurrentState(nsIEditor *aEditor,
   1.667 +                                        nsICommandParams *aParams)
   1.668 +{
   1.669 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.670 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.671 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.672 +
   1.673 +  nsAutoString outStateString;
   1.674 +  bool outMixed;
   1.675 +  nsresult rv = htmlEditor->GetFontFaceState(&outMixed, outStateString);
   1.676 +  if (NS_SUCCEEDED(rv))
   1.677 +  {
   1.678 +    aParams->SetBooleanValue(STATE_MIXED,outMixed);
   1.679 +    aParams->SetCStringValue(STATE_ATTRIBUTE, NS_ConvertUTF16toUTF8(outStateString).get());
   1.680 +  }
   1.681 +  return rv;
   1.682 +}
   1.683 +
   1.684 +
   1.685 +nsresult
   1.686 +nsFontFaceStateCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.687 +{
   1.688 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.689 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.690 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.691 +  
   1.692 +  if (newState.EqualsLiteral("tt")) {
   1.693 +    // The old "teletype" attribute
   1.694 +    nsresult rv = htmlEditor->SetInlineProperty(nsGkAtoms::tt, EmptyString(),
   1.695 +                                                EmptyString());
   1.696 +    NS_ENSURE_SUCCESS(rv, rv);
   1.697 +    // Clear existing font face
   1.698 +    return htmlEditor->RemoveInlineProperty(nsGkAtoms::font,
   1.699 +                                            NS_LITERAL_STRING("face"));
   1.700 +  }
   1.701 +
   1.702 +  // Remove any existing TT nodes
   1.703 +  nsresult rv = htmlEditor->RemoveInlineProperty(nsGkAtoms::tt, EmptyString());
   1.704 +  NS_ENSURE_SUCCESS(rv, rv);
   1.705 +
   1.706 +  if (newState.IsEmpty() || newState.EqualsLiteral("normal")) {
   1.707 +    return htmlEditor->RemoveInlineProperty(nsGkAtoms::font,
   1.708 +                                            NS_LITERAL_STRING("face"));
   1.709 +  }
   1.710 +
   1.711 +  return htmlEditor->SetInlineProperty(nsGkAtoms::font,
   1.712 +                                       NS_LITERAL_STRING("face"), newState);
   1.713 +}
   1.714 +
   1.715 +nsFontSizeStateCommand::nsFontSizeStateCommand()
   1.716 +  : nsMultiStateCommand()
   1.717 +{
   1.718 +}
   1.719 +
   1.720 +//  nsAutoCString tOutStateString;
   1.721 +//  tOutStateString.AssignWithConversion(outStateString);
   1.722 +nsresult
   1.723 +nsFontSizeStateCommand::GetCurrentState(nsIEditor *aEditor,
   1.724 +                                        nsICommandParams *aParams)
   1.725 +{
   1.726 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.727 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.728 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_INVALID_ARG);
   1.729 +
   1.730 +  nsAutoString outStateString;
   1.731 +  nsCOMPtr<nsIAtom> fontAtom = do_GetAtom("font");
   1.732 +  bool firstHas, anyHas, allHas;
   1.733 +  nsresult rv = htmlEditor->GetInlinePropertyWithAttrValue(fontAtom,
   1.734 +                                         NS_LITERAL_STRING("size"),
   1.735 +                                         EmptyString(),
   1.736 +                                         &firstHas, &anyHas, &allHas,
   1.737 +                                         outStateString);
   1.738 +  NS_ENSURE_SUCCESS(rv, rv);
   1.739 +
   1.740 +  nsAutoCString tOutStateString;
   1.741 +  tOutStateString.AssignWithConversion(outStateString);
   1.742 +  aParams->SetBooleanValue(STATE_MIXED, anyHas && !allHas);
   1.743 +  aParams->SetCStringValue(STATE_ATTRIBUTE, tOutStateString.get());
   1.744 +  aParams->SetBooleanValue(STATE_ENABLED, true);
   1.745 +
   1.746 +  return rv;
   1.747 +}
   1.748 +
   1.749 +
   1.750 +// acceptable values for "newState" are:
   1.751 +//   -2
   1.752 +//   -1
   1.753 +//    0
   1.754 +//   +1
   1.755 +//   +2
   1.756 +//   +3
   1.757 +//   medium
   1.758 +//   normal
   1.759 +nsresult
   1.760 +nsFontSizeStateCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.761 +{
   1.762 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.763 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.764 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_INVALID_ARG);
   1.765 +
   1.766 +  if (!newState.IsEmpty() &&
   1.767 +      !newState.EqualsLiteral("normal") &&
   1.768 +      !newState.EqualsLiteral("medium")) {
   1.769 +    return htmlEditor->SetInlineProperty(nsGkAtoms::font,
   1.770 +                                         NS_LITERAL_STRING("size"), newState);
   1.771 +  }
   1.772 +
   1.773 +  // remove any existing font size, big or small
   1.774 +  nsresult rv = htmlEditor->RemoveInlineProperty(nsGkAtoms::font,
   1.775 +                                                 NS_LITERAL_STRING("size"));
   1.776 +  NS_ENSURE_SUCCESS(rv, rv);
   1.777 +
   1.778 +  rv = htmlEditor->RemoveInlineProperty(nsGkAtoms::big, EmptyString());
   1.779 +  NS_ENSURE_SUCCESS(rv, rv);
   1.780 +
   1.781 +  return htmlEditor->RemoveInlineProperty(nsGkAtoms::small, EmptyString());
   1.782 +}
   1.783 +
   1.784 +nsFontColorStateCommand::nsFontColorStateCommand()
   1.785 +: nsMultiStateCommand()
   1.786 +{
   1.787 +}
   1.788 +
   1.789 +nsresult
   1.790 +nsFontColorStateCommand::GetCurrentState(nsIEditor *aEditor,
   1.791 +                                         nsICommandParams *aParams)
   1.792 +{
   1.793 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.794 +  
   1.795 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.796 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.797 +
   1.798 +  bool outMixed;
   1.799 +  nsAutoString outStateString;
   1.800 +  nsresult rv = htmlEditor->GetFontColorState(&outMixed, outStateString);
   1.801 +  NS_ENSURE_SUCCESS(rv, rv);
   1.802 +
   1.803 +  nsAutoCString tOutStateString;
   1.804 +  tOutStateString.AssignWithConversion(outStateString);
   1.805 +  aParams->SetBooleanValue(STATE_MIXED, outMixed);
   1.806 +  aParams->SetCStringValue(STATE_ATTRIBUTE, tOutStateString.get());
   1.807 +  return NS_OK;
   1.808 +}
   1.809 +
   1.810 +nsresult
   1.811 +nsFontColorStateCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.812 +{
   1.813 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.814 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.815 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.816 +  
   1.817 +  if (newState.IsEmpty() || newState.EqualsLiteral("normal")) {
   1.818 +    return htmlEditor->RemoveInlineProperty(nsGkAtoms::font,
   1.819 +                                            NS_LITERAL_STRING("color"));
   1.820 +  }
   1.821 +  
   1.822 +  return htmlEditor->SetInlineProperty(nsGkAtoms::font,
   1.823 +                                       NS_LITERAL_STRING("color"), newState);
   1.824 +}
   1.825 +
   1.826 +nsHighlightColorStateCommand::nsHighlightColorStateCommand()
   1.827 +: nsMultiStateCommand()
   1.828 +{
   1.829 +}
   1.830 +
   1.831 +nsresult
   1.832 +nsHighlightColorStateCommand::GetCurrentState(nsIEditor *aEditor,
   1.833 +                                              nsICommandParams *aParams)
   1.834 +{
   1.835 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.836 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.837 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.838 +
   1.839 +  bool outMixed;
   1.840 +  nsAutoString outStateString;
   1.841 +  nsresult rv = htmlEditor->GetHighlightColorState(&outMixed, outStateString);
   1.842 +  NS_ENSURE_SUCCESS(rv, rv);
   1.843 +
   1.844 +  nsAutoCString tOutStateString;
   1.845 +  tOutStateString.AssignWithConversion(outStateString);
   1.846 +  aParams->SetBooleanValue(STATE_MIXED, outMixed);
   1.847 +  aParams->SetCStringValue(STATE_ATTRIBUTE, tOutStateString.get());
   1.848 +  return NS_OK;
   1.849 +}
   1.850 +
   1.851 +nsresult
   1.852 +nsHighlightColorStateCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.853 +{
   1.854 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.855 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.856 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.857 +
   1.858 +  if (newState.IsEmpty() || newState.EqualsLiteral("normal")) {
   1.859 +    return htmlEditor->RemoveInlineProperty(nsGkAtoms::font,
   1.860 +                                            NS_LITERAL_STRING("bgcolor"));
   1.861 +  }
   1.862 +
   1.863 +  return htmlEditor->SetInlineProperty(nsGkAtoms::font,
   1.864 +                                       NS_LITERAL_STRING("bgcolor"),
   1.865 +                                       newState);
   1.866 +}
   1.867 +
   1.868 +NS_IMETHODIMP
   1.869 +nsHighlightColorStateCommand::IsCommandEnabled(const char * aCommandName,
   1.870 +                                               nsISupports *refCon,
   1.871 +                                               bool *outCmdEnabled)
   1.872 +{
   1.873 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
   1.874 +  if (editor)
   1.875 +    return editor->GetIsSelectionEditable(outCmdEnabled);
   1.876 +
   1.877 +  *outCmdEnabled = false;
   1.878 +  return NS_OK;
   1.879 +}
   1.880 +
   1.881 +
   1.882 +nsBackgroundColorStateCommand::nsBackgroundColorStateCommand()
   1.883 +: nsMultiStateCommand()
   1.884 +{
   1.885 +}
   1.886 +
   1.887 +nsresult
   1.888 +nsBackgroundColorStateCommand::GetCurrentState(nsIEditor *aEditor,
   1.889 +                                               nsICommandParams *aParams)
   1.890 +{
   1.891 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.892 +  
   1.893 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.894 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.895 +
   1.896 +  bool outMixed;
   1.897 +  nsAutoString outStateString;
   1.898 +  nsresult rv =  htmlEditor->GetBackgroundColorState(&outMixed, outStateString);
   1.899 +  NS_ENSURE_SUCCESS(rv, rv);
   1.900 +
   1.901 +  nsAutoCString tOutStateString;
   1.902 +  tOutStateString.AssignWithConversion(outStateString);
   1.903 +  aParams->SetBooleanValue(STATE_MIXED, outMixed);
   1.904 +  aParams->SetCStringValue(STATE_ATTRIBUTE, tOutStateString.get());
   1.905 +  return NS_OK;
   1.906 +}
   1.907 +
   1.908 +nsresult
   1.909 +nsBackgroundColorStateCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.910 +{
   1.911 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.912 +  
   1.913 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.914 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.915 +
   1.916 +  return htmlEditor->SetBackgroundColor(newState);
   1.917 +}
   1.918 +
   1.919 +nsAlignCommand::nsAlignCommand()
   1.920 +: nsMultiStateCommand()
   1.921 +{
   1.922 +}
   1.923 +
   1.924 +nsresult
   1.925 +nsAlignCommand::GetCurrentState(nsIEditor *aEditor, nsICommandParams *aParams)
   1.926 +{
   1.927 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.928 +  
   1.929 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.930 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.931 + 
   1.932 +  nsIHTMLEditor::EAlignment firstAlign;
   1.933 +  bool outMixed;
   1.934 +  nsresult rv = htmlEditor->GetAlignment(&outMixed, &firstAlign);
   1.935 +  
   1.936 +  NS_ENSURE_SUCCESS(rv, rv);
   1.937 +  
   1.938 +  nsAutoString outStateString;
   1.939 +  switch (firstAlign)
   1.940 +  {
   1.941 +    default:
   1.942 +    case nsIHTMLEditor::eLeft:
   1.943 +      outStateString.AssignLiteral("left");
   1.944 +      break;
   1.945 +      
   1.946 +    case nsIHTMLEditor::eCenter:
   1.947 +      outStateString.AssignLiteral("center");
   1.948 +      break;
   1.949 +      
   1.950 +    case nsIHTMLEditor::eRight:
   1.951 +      outStateString.AssignLiteral("right");
   1.952 +      break;
   1.953 +
   1.954 +    case nsIHTMLEditor::eJustify:
   1.955 +      outStateString.AssignLiteral("justify");
   1.956 +      break;
   1.957 +  }
   1.958 +  nsAutoCString tOutStateString;
   1.959 +  tOutStateString.AssignWithConversion(outStateString);
   1.960 +  aParams->SetBooleanValue(STATE_MIXED,outMixed);
   1.961 +  aParams->SetCStringValue(STATE_ATTRIBUTE, tOutStateString.get());
   1.962 +  return NS_OK;
   1.963 +}
   1.964 +
   1.965 +nsresult
   1.966 +nsAlignCommand::SetState(nsIEditor *aEditor, nsString& newState)
   1.967 +{
   1.968 +  NS_ASSERTION(aEditor, "Need an editor here");
   1.969 +  
   1.970 +  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
   1.971 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
   1.972 +
   1.973 +  return htmlEditor->Align(newState);
   1.974 +}
   1.975 +
   1.976 +nsAbsolutePositioningCommand::nsAbsolutePositioningCommand()
   1.977 +: nsBaseStateUpdatingCommand(nsGkAtoms::_empty)
   1.978 +{
   1.979 +}
   1.980 +
   1.981 +NS_IMETHODIMP
   1.982 +nsAbsolutePositioningCommand::IsCommandEnabled(const char * aCommandName,
   1.983 +                                               nsISupports *aCommandRefCon,
   1.984 +                                               bool *outCmdEnabled)
   1.985 +{
   1.986 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
   1.987 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(aCommandRefCon);
   1.988 +  if (htmlEditor)
   1.989 +  {
   1.990 +    bool isEditable = false;
   1.991 +    nsresult rv = editor->GetIsSelectionEditable(&isEditable);
   1.992 +    NS_ENSURE_SUCCESS(rv, rv);
   1.993 +    if (isEditable)
   1.994 +      return htmlEditor->GetAbsolutePositioningEnabled(outCmdEnabled);
   1.995 +  }
   1.996 +
   1.997 +  *outCmdEnabled = false;
   1.998 +  return NS_OK;
   1.999 +}
  1.1000 +
  1.1001 +nsresult
  1.1002 +nsAbsolutePositioningCommand::GetCurrentState(nsIEditor *aEditor, nsICommandParams *aParams)
  1.1003 +{
  1.1004 +  NS_ASSERTION(aEditor, "Need an editor here");
  1.1005 +  
  1.1006 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(aEditor);
  1.1007 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
  1.1008 +
  1.1009 +  bool isEnabled;
  1.1010 +  htmlEditor->GetAbsolutePositioningEnabled(&isEnabled);
  1.1011 +  if (!isEnabled) {
  1.1012 +    aParams->SetBooleanValue(STATE_MIXED,false);
  1.1013 +    aParams->SetCStringValue(STATE_ATTRIBUTE, "");
  1.1014 +    return NS_OK;
  1.1015 +  }
  1.1016 +
  1.1017 +  nsCOMPtr<nsIDOMElement>  elt;
  1.1018 +  nsresult rv = htmlEditor->GetAbsolutelyPositionedSelectionContainer(getter_AddRefs(elt));
  1.1019 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1020 +
  1.1021 +  nsAutoString outStateString;
  1.1022 +  if (elt)
  1.1023 +    outStateString.AssignLiteral("absolute");
  1.1024 +
  1.1025 +  aParams->SetBooleanValue(STATE_MIXED,false);
  1.1026 +  aParams->SetCStringValue(STATE_ATTRIBUTE, NS_ConvertUTF16toUTF8(outStateString).get());
  1.1027 +  return NS_OK;
  1.1028 +}
  1.1029 +
  1.1030 +nsresult
  1.1031 +nsAbsolutePositioningCommand::ToggleState(nsIEditor *aEditor)
  1.1032 +{
  1.1033 +  NS_ASSERTION(aEditor, "Need an editor here");
  1.1034 +  
  1.1035 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(aEditor);
  1.1036 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
  1.1037 +
  1.1038 +  nsCOMPtr<nsIDOMElement> elt;
  1.1039 +  nsresult rv = htmlEditor->GetAbsolutelyPositionedSelectionContainer(getter_AddRefs(elt));
  1.1040 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1041 +
  1.1042 +  return htmlEditor->AbsolutePositionSelection(!elt);
  1.1043 +}
  1.1044 +
  1.1045 +
  1.1046 +NS_IMETHODIMP
  1.1047 +nsDecreaseZIndexCommand::IsCommandEnabled(const char * aCommandName,
  1.1048 +                                          nsISupports *refCon,
  1.1049 +                                          bool *outCmdEnabled)
  1.1050 +{
  1.1051 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(refCon);
  1.1052 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
  1.1053 +
  1.1054 +  htmlEditor->GetAbsolutePositioningEnabled(outCmdEnabled);
  1.1055 +  if (!(*outCmdEnabled))
  1.1056 +    return NS_OK;
  1.1057 +
  1.1058 +  nsCOMPtr<nsIDOMElement> positionedElement;
  1.1059 +  htmlEditor->GetPositionedElement(getter_AddRefs(positionedElement));
  1.1060 +  *outCmdEnabled = false;
  1.1061 +  if (positionedElement) {
  1.1062 +    int32_t z;
  1.1063 +    nsresult res = htmlEditor->GetElementZIndex(positionedElement, &z);
  1.1064 +    NS_ENSURE_SUCCESS(res, res);
  1.1065 +    *outCmdEnabled = (z > 0);
  1.1066 +  }
  1.1067 +
  1.1068 +  return NS_OK;
  1.1069 +}
  1.1070 +
  1.1071 +NS_IMETHODIMP
  1.1072 +nsDecreaseZIndexCommand::DoCommand(const char *aCommandName,
  1.1073 +                                   nsISupports *refCon)
  1.1074 +{
  1.1075 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(refCon);
  1.1076 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NOT_IMPLEMENTED);
  1.1077 +
  1.1078 +  return htmlEditor->RelativeChangeZIndex(-1);
  1.1079 +}
  1.1080 +
  1.1081 +NS_IMETHODIMP
  1.1082 +nsDecreaseZIndexCommand::DoCommandParams(const char *aCommandName,
  1.1083 +                                         nsICommandParams *aParams, 
  1.1084 +                                         nsISupports *refCon)
  1.1085 +{
  1.1086 +  return DoCommand(aCommandName, refCon);
  1.1087 +}
  1.1088 +
  1.1089 +NS_IMETHODIMP
  1.1090 +nsDecreaseZIndexCommand::GetCommandStateParams(const char *aCommandName,
  1.1091 +                                               nsICommandParams *aParams,
  1.1092 +                                               nsISupports *refCon)
  1.1093 +{
  1.1094 +  NS_ENSURE_ARG_POINTER(aParams);
  1.1095 +
  1.1096 +  bool enabled = false;
  1.1097 +  nsresult rv = IsCommandEnabled(aCommandName, refCon, &enabled);
  1.1098 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1099 +
  1.1100 +  return aParams->SetBooleanValue(STATE_ENABLED, enabled);
  1.1101 +}
  1.1102 +
  1.1103 +NS_IMETHODIMP
  1.1104 +nsIncreaseZIndexCommand::IsCommandEnabled(const char * aCommandName,
  1.1105 +                                          nsISupports *refCon,
  1.1106 +                                          bool *outCmdEnabled)
  1.1107 +{
  1.1108 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(refCon);
  1.1109 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_FAILURE);
  1.1110 +
  1.1111 +  htmlEditor->GetAbsolutePositioningEnabled(outCmdEnabled);
  1.1112 +  if (!(*outCmdEnabled))
  1.1113 +    return NS_OK;
  1.1114 +
  1.1115 +  nsCOMPtr<nsIDOMElement> positionedElement;
  1.1116 +  htmlEditor->GetPositionedElement(getter_AddRefs(positionedElement));
  1.1117 +  *outCmdEnabled = (nullptr != positionedElement);
  1.1118 +  return NS_OK;
  1.1119 +}
  1.1120 +
  1.1121 +NS_IMETHODIMP
  1.1122 +nsIncreaseZIndexCommand::DoCommand(const char *aCommandName,
  1.1123 +                                   nsISupports *refCon)
  1.1124 +{
  1.1125 +  nsCOMPtr<nsIHTMLAbsPosEditor> htmlEditor = do_QueryInterface(refCon);
  1.1126 +  NS_ENSURE_TRUE(htmlEditor, NS_ERROR_NOT_IMPLEMENTED);
  1.1127 +
  1.1128 +  return htmlEditor->RelativeChangeZIndex(1);
  1.1129 +}
  1.1130 +
  1.1131 +NS_IMETHODIMP
  1.1132 +nsIncreaseZIndexCommand::DoCommandParams(const char *aCommandName,
  1.1133 +                                         nsICommandParams *aParams, 
  1.1134 +                                         nsISupports *refCon)
  1.1135 +{
  1.1136 +  return DoCommand(aCommandName, refCon);
  1.1137 +}
  1.1138 +
  1.1139 +NS_IMETHODIMP
  1.1140 +nsIncreaseZIndexCommand::GetCommandStateParams(const char *aCommandName,
  1.1141 +                                               nsICommandParams *aParams,
  1.1142 +                                               nsISupports *refCon)
  1.1143 +{
  1.1144 +  NS_ENSURE_ARG_POINTER(aParams);
  1.1145 +
  1.1146 +  bool enabled = false;
  1.1147 +  nsresult rv = IsCommandEnabled(aCommandName, refCon, &enabled);
  1.1148 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1149 +
  1.1150 +  return aParams->SetBooleanValue(STATE_ENABLED, enabled);
  1.1151 +}
  1.1152 +
  1.1153 +
  1.1154 +NS_IMETHODIMP
  1.1155 +nsRemoveStylesCommand::IsCommandEnabled(const char * aCommandName,
  1.1156 +                                        nsISupports *refCon,
  1.1157 +                                        bool *outCmdEnabled)
  1.1158 +{
  1.1159 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
  1.1160 +  // test if we have any styles?
  1.1161 +  if (editor)
  1.1162 +    return editor->GetIsSelectionEditable(outCmdEnabled);
  1.1163 +
  1.1164 +  *outCmdEnabled = false;
  1.1165 +  return NS_OK;
  1.1166 +}
  1.1167 +
  1.1168 +
  1.1169 +
  1.1170 +NS_IMETHODIMP
  1.1171 +nsRemoveStylesCommand::DoCommand(const char *aCommandName,
  1.1172 +                                 nsISupports *refCon)
  1.1173 +{
  1.1174 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
  1.1175 +
  1.1176 +  nsresult rv = NS_OK;
  1.1177 +  if (editor)
  1.1178 +  {
  1.1179 +    rv = editor->RemoveAllInlineProperties();
  1.1180 +  }
  1.1181 +  
  1.1182 +  return rv;  
  1.1183 +}
  1.1184 +
  1.1185 +NS_IMETHODIMP
  1.1186 +nsRemoveStylesCommand::DoCommandParams(const char *aCommandName,
  1.1187 +                                       nsICommandParams *aParams,
  1.1188 +                                       nsISupports *refCon)
  1.1189 +{
  1.1190 +  return DoCommand(aCommandName, refCon);
  1.1191 +}
  1.1192 +
  1.1193 +NS_IMETHODIMP
  1.1194 +nsRemoveStylesCommand::GetCommandStateParams(const char *aCommandName,
  1.1195 +                                             nsICommandParams *aParams,
  1.1196 +                                             nsISupports *refCon)
  1.1197 +{
  1.1198 +  bool outCmdEnabled = false;
  1.1199 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
  1.1200 +  return aParams->SetBooleanValue(STATE_ENABLED,outCmdEnabled);
  1.1201 +}
  1.1202 +
  1.1203 +NS_IMETHODIMP
  1.1204 +nsIncreaseFontSizeCommand::IsCommandEnabled(const char * aCommandName,
  1.1205 +                                            nsISupports *refCon,
  1.1206 +                                            bool *outCmdEnabled)
  1.1207 +{
  1.1208 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
  1.1209 +  // test if we are at max size?
  1.1210 +  if (editor)
  1.1211 +    return editor->GetIsSelectionEditable(outCmdEnabled);
  1.1212 +
  1.1213 +  *outCmdEnabled = false;
  1.1214 +  return NS_OK;
  1.1215 +}
  1.1216 +
  1.1217 +
  1.1218 +NS_IMETHODIMP
  1.1219 +nsIncreaseFontSizeCommand::DoCommand(const char *aCommandName,
  1.1220 +                                     nsISupports *refCon)
  1.1221 +{
  1.1222 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
  1.1223 +
  1.1224 +  nsresult rv = NS_OK;
  1.1225 +  if (editor)
  1.1226 +  {
  1.1227 +    rv = editor->IncreaseFontSize();
  1.1228 +  }
  1.1229 +  
  1.1230 +  return rv;  
  1.1231 +}
  1.1232 +
  1.1233 +NS_IMETHODIMP
  1.1234 +nsIncreaseFontSizeCommand::DoCommandParams(const char *aCommandName,
  1.1235 +                                           nsICommandParams *aParams,
  1.1236 +                                           nsISupports *refCon)
  1.1237 +{
  1.1238 +  return DoCommand(aCommandName, refCon);
  1.1239 +}
  1.1240 +
  1.1241 +NS_IMETHODIMP
  1.1242 +nsIncreaseFontSizeCommand::GetCommandStateParams(const char *aCommandName,
  1.1243 +                                                 nsICommandParams *aParams,
  1.1244 +                                                 nsISupports *refCon)
  1.1245 +{
  1.1246 +  bool outCmdEnabled = false;
  1.1247 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
  1.1248 +  return aParams->SetBooleanValue(STATE_ENABLED,outCmdEnabled);
  1.1249 +}
  1.1250 +
  1.1251 +NS_IMETHODIMP
  1.1252 +nsDecreaseFontSizeCommand::IsCommandEnabled(const char * aCommandName,
  1.1253 +                                            nsISupports *refCon,
  1.1254 +                                            bool *outCmdEnabled)
  1.1255 +{
  1.1256 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
  1.1257 +  // test if we are at min size?
  1.1258 +  if (editor)
  1.1259 +    return editor->GetIsSelectionEditable(outCmdEnabled);
  1.1260 +
  1.1261 +  *outCmdEnabled = false;
  1.1262 +  return NS_OK;
  1.1263 +}
  1.1264 +
  1.1265 +
  1.1266 +NS_IMETHODIMP
  1.1267 +nsDecreaseFontSizeCommand::DoCommand(const char *aCommandName,
  1.1268 +                                     nsISupports *refCon)
  1.1269 +{
  1.1270 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
  1.1271 +
  1.1272 +  nsresult rv = NS_OK;
  1.1273 +  if (editor)
  1.1274 +  {
  1.1275 +    rv = editor->DecreaseFontSize();
  1.1276 +  }
  1.1277 +  
  1.1278 +  return rv;  
  1.1279 +}
  1.1280 +
  1.1281 +NS_IMETHODIMP
  1.1282 +nsDecreaseFontSizeCommand::DoCommandParams(const char *aCommandName,
  1.1283 +                                           nsICommandParams *aParams,
  1.1284 +                                           nsISupports *refCon)
  1.1285 +{
  1.1286 +  return DoCommand(aCommandName, refCon);
  1.1287 +}
  1.1288 +
  1.1289 +NS_IMETHODIMP
  1.1290 +nsDecreaseFontSizeCommand::GetCommandStateParams(const char *aCommandName,
  1.1291 +                                                 nsICommandParams *aParams,
  1.1292 +                                                 nsISupports *refCon)
  1.1293 +{
  1.1294 +  bool outCmdEnabled = false;
  1.1295 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
  1.1296 +  return aParams->SetBooleanValue(STATE_ENABLED,outCmdEnabled);
  1.1297 +}
  1.1298 +
  1.1299 +NS_IMETHODIMP
  1.1300 +nsInsertHTMLCommand::IsCommandEnabled(const char * aCommandName,
  1.1301 +                                      nsISupports *refCon,
  1.1302 +                                      bool *outCmdEnabled)
  1.1303 +{
  1.1304 +  NS_ENSURE_ARG_POINTER(outCmdEnabled);
  1.1305 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
  1.1306 +  if (editor)
  1.1307 +    return editor->GetIsSelectionEditable(outCmdEnabled);
  1.1308 +
  1.1309 +  *outCmdEnabled = false;
  1.1310 +  return NS_OK;
  1.1311 +}
  1.1312 +
  1.1313 +
  1.1314 +NS_IMETHODIMP
  1.1315 +nsInsertHTMLCommand::DoCommand(const char *aCommandName, nsISupports *refCon)
  1.1316 +{
  1.1317 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.1318 +}
  1.1319 +
  1.1320 +NS_IMETHODIMP
  1.1321 +nsInsertHTMLCommand::DoCommandParams(const char *aCommandName,
  1.1322 +                                     nsICommandParams *aParams,
  1.1323 +                                     nsISupports *refCon)
  1.1324 +{
  1.1325 +  NS_ENSURE_ARG_POINTER(aParams);
  1.1326 +  NS_ENSURE_ARG_POINTER(refCon);
  1.1327 +
  1.1328 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
  1.1329 +  NS_ENSURE_TRUE(editor, NS_ERROR_NOT_IMPLEMENTED);
  1.1330 +
  1.1331 +  // Get HTML source string to insert from command params
  1.1332 +  nsAutoString html;
  1.1333 +  nsresult rv = aParams->GetStringValue(STATE_DATA, html);
  1.1334 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1335 +
  1.1336 +  if (!html.IsEmpty())
  1.1337 +    return editor->InsertHTML(html);
  1.1338 +
  1.1339 +  return NS_OK;
  1.1340 +}
  1.1341 +
  1.1342 +NS_IMETHODIMP
  1.1343 +nsInsertHTMLCommand::GetCommandStateParams(const char *aCommandName,
  1.1344 +                                           nsICommandParams *aParams,
  1.1345 +                                           nsISupports *refCon)
  1.1346 +{
  1.1347 +  NS_ENSURE_ARG_POINTER(aParams);
  1.1348 +  NS_ENSURE_ARG_POINTER(refCon);
  1.1349 +
  1.1350 +  bool outCmdEnabled = false;
  1.1351 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
  1.1352 +  return aParams->SetBooleanValue(STATE_ENABLED, outCmdEnabled);
  1.1353 +}
  1.1354 +
  1.1355 +NS_IMPL_ISUPPORTS_INHERITED0(nsInsertTagCommand, nsBaseComposerCommand)
  1.1356 +
  1.1357 +nsInsertTagCommand::nsInsertTagCommand(nsIAtom* aTagName)
  1.1358 +: nsBaseComposerCommand()
  1.1359 +, mTagName(aTagName)
  1.1360 +{
  1.1361 +  MOZ_ASSERT(mTagName);
  1.1362 +}
  1.1363 +
  1.1364 +nsInsertTagCommand::~nsInsertTagCommand()
  1.1365 +{
  1.1366 +}
  1.1367 +
  1.1368 +NS_IMETHODIMP
  1.1369 +nsInsertTagCommand::IsCommandEnabled(const char * aCommandName,
  1.1370 +                                     nsISupports *refCon,
  1.1371 +                                     bool *outCmdEnabled)
  1.1372 +{
  1.1373 +  NS_ENSURE_ARG_POINTER(outCmdEnabled);
  1.1374 +  nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
  1.1375 +  if (editor)
  1.1376 +    return editor->GetIsSelectionEditable(outCmdEnabled);
  1.1377 +
  1.1378 +  *outCmdEnabled = false;
  1.1379 +  return NS_OK;
  1.1380 +}
  1.1381 +
  1.1382 +
  1.1383 +// corresponding STATE_ATTRIBUTE is: src (img) and href (a) 
  1.1384 +NS_IMETHODIMP
  1.1385 +nsInsertTagCommand::DoCommand(const char *aCmdName, nsISupports *refCon)
  1.1386 +{
  1.1387 +  NS_ENSURE_TRUE(mTagName == nsGkAtoms::hr, NS_ERROR_NOT_IMPLEMENTED);
  1.1388 +
  1.1389 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
  1.1390 +  NS_ENSURE_TRUE(editor, NS_ERROR_NOT_IMPLEMENTED);
  1.1391 +
  1.1392 +  nsCOMPtr<nsIDOMElement> domElem;
  1.1393 +  nsresult rv = editor->CreateElementWithDefaults(
  1.1394 +    nsDependentAtomString(mTagName), getter_AddRefs(domElem));
  1.1395 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1396 +
  1.1397 +  return editor->InsertElementAtSelection(domElem, true);
  1.1398 +}
  1.1399 +
  1.1400 +NS_IMETHODIMP
  1.1401 +nsInsertTagCommand::DoCommandParams(const char *aCommandName,
  1.1402 +                                    nsICommandParams *aParams,
  1.1403 +                                    nsISupports *refCon)
  1.1404 +{
  1.1405 +  NS_ENSURE_ARG_POINTER(refCon);
  1.1406 +
  1.1407 +  // inserting an hr shouldn't have an parameters, just call DoCommand for that
  1.1408 +  if (mTagName == nsGkAtoms::hr) {
  1.1409 +    return DoCommand(aCommandName, refCon);
  1.1410 +  }
  1.1411 +
  1.1412 +  NS_ENSURE_ARG_POINTER(aParams);
  1.1413 +
  1.1414 +  nsCOMPtr<nsIHTMLEditor> editor = do_QueryInterface(refCon);
  1.1415 +  NS_ENSURE_TRUE(editor, NS_ERROR_NOT_IMPLEMENTED);
  1.1416 +
  1.1417 +  // do we have an href to use for creating link?
  1.1418 +  nsXPIDLCString s;
  1.1419 +  nsresult rv = aParams->GetCStringValue(STATE_ATTRIBUTE, getter_Copies(s));
  1.1420 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1421 +  nsAutoString attrib; attrib.AssignWithConversion(s);
  1.1422 +
  1.1423 +  if (attrib.IsEmpty())
  1.1424 +    return NS_ERROR_INVALID_ARG;
  1.1425 +
  1.1426 +  // filter out tags we don't know how to insert
  1.1427 +  nsAutoString attributeType;
  1.1428 +  if (mTagName == nsGkAtoms::a) {
  1.1429 +    attributeType.AssignLiteral("href");
  1.1430 +  } else if (mTagName == nsGkAtoms::img) {
  1.1431 +    attributeType.AssignLiteral("src");
  1.1432 +  } else {
  1.1433 +    return NS_ERROR_NOT_IMPLEMENTED;
  1.1434 +  }
  1.1435 +
  1.1436 +  nsCOMPtr<nsIDOMElement> domElem;
  1.1437 +  rv = editor->CreateElementWithDefaults(nsDependentAtomString(mTagName),
  1.1438 +                                         getter_AddRefs(domElem));
  1.1439 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1440 +
  1.1441 +  rv = domElem->SetAttribute(attributeType, attrib);
  1.1442 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1443 +
  1.1444 +  // do actual insertion
  1.1445 +  if (mTagName == nsGkAtoms::a)
  1.1446 +    return editor->InsertLinkAroundSelection(domElem);
  1.1447 +
  1.1448 +  return editor->InsertElementAtSelection(domElem, true);
  1.1449 +}
  1.1450 +
  1.1451 +NS_IMETHODIMP
  1.1452 +nsInsertTagCommand::GetCommandStateParams(const char *aCommandName,
  1.1453 +                                          nsICommandParams *aParams,
  1.1454 +                                          nsISupports *refCon)
  1.1455 +{
  1.1456 +  NS_ENSURE_ARG_POINTER(aParams);
  1.1457 +  NS_ENSURE_ARG_POINTER(refCon);
  1.1458 +
  1.1459 +  bool outCmdEnabled = false;
  1.1460 +  IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
  1.1461 +  return aParams->SetBooleanValue(STATE_ENABLED, outCmdEnabled);
  1.1462 +}
  1.1463 +
  1.1464 +
  1.1465 +/****************************/
  1.1466 +//HELPER METHODS
  1.1467 +/****************************/
  1.1468 +
  1.1469 +nsresult
  1.1470 +GetListState(nsIHTMLEditor* aEditor, bool* aMixed, nsAString& aLocalName)
  1.1471 +{
  1.1472 +  MOZ_ASSERT(aEditor);
  1.1473 +  MOZ_ASSERT(aMixed);
  1.1474 +
  1.1475 +  *aMixed = false;
  1.1476 +  aLocalName.Truncate();
  1.1477 +
  1.1478 +  bool bOL, bUL, bDL;
  1.1479 +  nsresult rv = aEditor->GetListState(aMixed, &bOL, &bUL, &bDL);
  1.1480 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1481 +
  1.1482 +  if (*aMixed) {
  1.1483 +    return NS_OK;
  1.1484 +  }
  1.1485 +
  1.1486 +  if (bOL) {
  1.1487 +    aLocalName.AssignLiteral("ol");
  1.1488 +  } else if (bUL) {
  1.1489 +    aLocalName.AssignLiteral("ul");
  1.1490 +  } else if (bDL) {
  1.1491 +    aLocalName.AssignLiteral("dl");
  1.1492 +  }
  1.1493 +  return NS_OK;
  1.1494 +}
  1.1495 +
  1.1496 +nsresult
  1.1497 +RemoveOneProperty(nsIHTMLEditor* aEditor, const nsAString& aProp)
  1.1498 +{
  1.1499 +  MOZ_ASSERT(aEditor);
  1.1500 +
  1.1501 +  /// XXX Hack alert! Look in nsIEditProperty.h for this
  1.1502 +  nsCOMPtr<nsIAtom> styleAtom = do_GetAtom(aProp);
  1.1503 +  NS_ENSURE_TRUE(styleAtom, NS_ERROR_OUT_OF_MEMORY);
  1.1504 +
  1.1505 +  return aEditor->RemoveInlineProperty(styleAtom, EmptyString());
  1.1506 +}
  1.1507 +
  1.1508 +
  1.1509 +// the name of the attribute here should be the contents of the appropriate
  1.1510 +// tag, e.g. 'b' for bold, 'i' for italics.
  1.1511 +nsresult
  1.1512 +RemoveTextProperty(nsIHTMLEditor* aEditor, const nsAString& aProp)
  1.1513 +{
  1.1514 +  MOZ_ASSERT(aEditor);
  1.1515 +
  1.1516 +  if (aProp.LowerCaseEqualsLiteral("all")) {
  1.1517 +    return aEditor->RemoveAllInlineProperties();
  1.1518 +  }
  1.1519 +  
  1.1520 +  return RemoveOneProperty(aEditor, aProp);
  1.1521 +}
  1.1522 +
  1.1523 +// the name of the attribute here should be the contents of the appropriate
  1.1524 +// tag, e.g. 'b' for bold, 'i' for italics.
  1.1525 +nsresult
  1.1526 +SetTextProperty(nsIHTMLEditor* aEditor, const nsAString& aProp)
  1.1527 +{
  1.1528 +  MOZ_ASSERT(aEditor);
  1.1529 +
  1.1530 +  /// XXX Hack alert! Look in nsIEditProperty.h for this
  1.1531 +  nsCOMPtr<nsIAtom> styleAtom = do_GetAtom(aProp);
  1.1532 +  NS_ENSURE_TRUE(styleAtom, NS_ERROR_OUT_OF_MEMORY);
  1.1533 +
  1.1534 +  return aEditor->SetInlineProperty(styleAtom, EmptyString(), EmptyString());
  1.1535 +}

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