michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: #include "nsAutoPtr.h"                  // for nsRefPtr, getter_AddRefs, etc
michael@0: #include "nsCOMPtr.h"                   // for nsCOMPtr, do_QueryInterface, etc
michael@0: #include "nsCRT.h"                      // for nsCRT
michael@0: #include "nsComposerCommands.h"         // for nsSetDocumentOptionsCommand, etc
michael@0: #include "nsDebug.h"                    // for NS_ENSURE_ARG_POINTER, etc
michael@0: #include "nsError.h"                    // for NS_ERROR_INVALID_ARG, etc
michael@0: #include "nsICommandParams.h"           // for nsICommandParams
michael@0: #include "nsIDOMDocument.h"             // for nsIDOMDocument
michael@0: #include "nsIDocShell.h"                // for nsIDocShell
michael@0: #include "nsIDocument.h"                // for nsIDocument
michael@0: #include "nsIEditingSession.h"          // for nsIEditingSession, etc
michael@0: #include "nsIEditor.h"                  // for nsIEditor
michael@0: #include "nsIHTMLEditor.h"              // for nsIHTMLEditor
michael@0: #include "nsIHTMLInlineTableEditor.h"   // for nsIHTMLInlineTableEditor
michael@0: #include "nsIHTMLObjectResizer.h"       // for nsIHTMLObjectResizer
michael@0: #include "nsIPlaintextEditor.h"         // for nsIPlaintextEditor, etc
michael@0: #include "nsIPresShell.h"               // for nsIPresShell
michael@0: #include "nsISelectionController.h"     // for nsISelectionController
michael@0: #include "nsISupportsImpl.h"            // for nsPresContext::Release
michael@0: #include "nsISupportsUtils.h"           // for NS_IF_ADDREF
michael@0: #include "nsIURI.h"                     // for nsIURI
michael@0: #include "nsPresContext.h"              // for nsPresContext
michael@0: #include "nscore.h"                     // for NS_IMETHODIMP, nsresult, etc
michael@0: 
michael@0: class nsISupports;
michael@0: 
michael@0: //defines
michael@0: #define STATE_ENABLED  "state_enabled"
michael@0: #define STATE_ALL "state_all"
michael@0: #define STATE_ATTRIBUTE "state_attribute"
michael@0: #define STATE_DATA "state_data"
michael@0: 
michael@0: static
michael@0: nsresult
michael@0: GetPresContextFromEditor(nsIEditor *aEditor, nsPresContext **aResult)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aResult);
michael@0:   *aResult = nullptr;
michael@0:   NS_ENSURE_ARG_POINTER(aEditor);
michael@0: 
michael@0:   nsCOMPtr<nsISelectionController> selCon;
michael@0:   nsresult rv = aEditor->GetSelectionController(getter_AddRefs(selCon));
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0:   NS_ENSURE_TRUE(selCon, NS_ERROR_FAILURE);
michael@0: 
michael@0:   nsCOMPtr<nsIPresShell> presShell = do_QueryInterface(selCon);
michael@0:   NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
michael@0: 
michael@0:   NS_IF_ADDREF(*aResult = presShell->GetPresContext());
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentOptionsCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                               nsISupports *refCon,
michael@0:                                               bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentOptionsCommand::DoCommand(const char *aCommandName,
michael@0:                                        nsISupports *refCon)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentOptionsCommand::DoCommandParams(const char *aCommandName,
michael@0:                                              nsICommandParams *aParams,
michael@0:                                              nsISupports *refCon)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0: 
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:   nsRefPtr<nsPresContext> presContext;
michael@0:   nsresult rv = GetPresContextFromEditor(editor, getter_AddRefs(presContext));
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0:   NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
michael@0: 
michael@0:   int32_t animationMode; 
michael@0:   rv = aParams->GetLongValue("imageAnimation", &animationMode);
michael@0:   if (NS_SUCCEEDED(rv))
michael@0:   {
michael@0:     // for possible values of animation mode, see:
michael@0:     // http://lxr.mozilla.org/seamonkey/source/image/public/imgIContainer.idl
michael@0:     presContext->SetImageAnimationMode(animationMode);
michael@0:   }
michael@0: 
michael@0:   bool allowPlugins; 
michael@0:   rv = aParams->GetBooleanValue("plugins", &allowPlugins);
michael@0:   if (NS_SUCCEEDED(rv))
michael@0:   {
michael@0:     nsCOMPtr<nsIDocShell> docShell(presContext->GetDocShell());
michael@0:     NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
michael@0: 
michael@0:     rv = docShell->SetAllowPlugins(allowPlugins);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentOptionsCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                                    nsICommandParams *aParams,
michael@0:                                                    nsISupports *refCon)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0:   NS_ENSURE_ARG_POINTER(refCon);
michael@0: 
michael@0:   // The base editor owns most state info
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:   // Always get the enabled state
michael@0:   bool outCmdEnabled = false;
michael@0:   IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
michael@0:   nsresult rv = aParams->SetBooleanValue(STATE_ENABLED, outCmdEnabled);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   // get pres context
michael@0:   nsRefPtr<nsPresContext> presContext;
michael@0:   rv = GetPresContextFromEditor(editor, getter_AddRefs(presContext));
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0:   NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
michael@0: 
michael@0:   int32_t animationMode;
michael@0:   rv = aParams->GetLongValue("imageAnimation", &animationMode);
michael@0:   if (NS_SUCCEEDED(rv))
michael@0:   {
michael@0:     // for possible values of animation mode, see
michael@0:     // http://lxr.mozilla.org/seamonkey/source/image/public/imgIContainer.idl
michael@0:     rv = aParams->SetLongValue("imageAnimation",
michael@0:                                presContext->ImageAnimationMode());
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:   }
michael@0: 
michael@0:   bool allowPlugins = false; 
michael@0:   rv = aParams->GetBooleanValue("plugins", &allowPlugins);
michael@0:   if (NS_SUCCEEDED(rv))
michael@0:   {
michael@0:     nsCOMPtr<nsIDocShell> docShell(presContext->GetDocShell());
michael@0:     NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
michael@0: 
michael@0:     allowPlugins = docShell->PluginsAllowedInCurrentDoc();
michael@0: 
michael@0:     rv = aParams->SetBooleanValue("plugins", allowPlugins);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: /**
michael@0:  *  Commands for document state that may be changed via doCommandParams
michael@0:  *  As of 11/11/02, this is just "cmd_setDocumentModified"
michael@0:  *  Note that you can use the same command class, nsSetDocumentStateCommand,
michael@0:  *    for more than one of this type of command
michael@0:  *    We check the input command param for different behavior
michael@0:  */
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentStateCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                             nsISupports *refCon,
michael@0:                                             bool *outCmdEnabled)
michael@0: {
michael@0:   // These commands are always enabled
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   *outCmdEnabled = true;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentStateCommand::DoCommand(const char *aCommandName,
michael@0:                                      nsISupports *refCon)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentStateCommand::DoCommandParams(const char *aCommandName,
michael@0:                                            nsICommandParams *aParams,
michael@0:                                            nsISupports *refCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_setDocumentModified"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0: 
michael@0:     bool modified; 
michael@0:     nsresult rv = aParams->GetBooleanValue(STATE_ATTRIBUTE, &modified);
michael@0: 
michael@0:     // Should we fail if this param wasn't set?
michael@0:     // I'm not sure we should be that strict
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:     if (modified)
michael@0:       return editor->IncrementModificationCount(1);
michael@0: 
michael@0:     return editor->ResetModificationCount();
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_setDocumentReadOnly"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     bool isReadOnly; 
michael@0:     nsresult rvRO = aParams->GetBooleanValue(STATE_ATTRIBUTE, &isReadOnly);
michael@0:     NS_ENSURE_SUCCESS(rvRO, rvRO);
michael@0: 
michael@0:     uint32_t flags;
michael@0:     editor->GetFlags(&flags);
michael@0:     if (isReadOnly)
michael@0:       flags |= nsIPlaintextEditor::eEditorReadonlyMask;
michael@0:     else
michael@0:       flags &= ~(nsIPlaintextEditor::eEditorReadonlyMask);
michael@0: 
michael@0:     return editor->SetFlags(flags);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_setDocumentUseCSS"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLEditor> htmleditor = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(htmleditor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool desireCSS;
michael@0:     nsresult rvCSS = aParams->GetBooleanValue(STATE_ATTRIBUTE, &desireCSS);
michael@0:     NS_ENSURE_SUCCESS(rvCSS, rvCSS);
michael@0: 
michael@0:     return htmleditor->SetIsCSSEnabled(desireCSS);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_insertBrOnReturn"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLEditor> htmleditor = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(htmleditor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool insertBrOnReturn;
michael@0:     nsresult rvBR = aParams->GetBooleanValue(STATE_ATTRIBUTE,
michael@0:                                               &insertBrOnReturn);
michael@0:     NS_ENSURE_SUCCESS(rvBR, rvBR);
michael@0: 
michael@0:     return htmleditor->SetReturnInParagraphCreatesNewParagraph(!insertBrOnReturn);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_enableObjectResizing"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLObjectResizer> resizer = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(resizer, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool enabled;
michael@0:     nsresult rvOR = aParams->GetBooleanValue(STATE_ATTRIBUTE, &enabled);
michael@0:     NS_ENSURE_SUCCESS(rvOR, rvOR);
michael@0: 
michael@0:     return resizer->SetObjectResizingEnabled(enabled);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_enableInlineTableEditing"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLInlineTableEditor> editor = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool enabled;
michael@0:     nsresult rvOR = aParams->GetBooleanValue(STATE_ATTRIBUTE, &enabled);
michael@0:     NS_ENSURE_SUCCESS(rvOR, rvOR);
michael@0: 
michael@0:     return editor->SetInlineTableEditingEnabled(enabled);
michael@0:   }
michael@0: 
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSetDocumentStateCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                                  nsICommandParams *aParams,
michael@0:                                                  nsISupports *refCon)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0:   NS_ENSURE_ARG_POINTER(refCon);
michael@0: 
michael@0:   // The base editor owns most state info
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:   // Always get the enabled state
michael@0:   bool outCmdEnabled = false;
michael@0:   IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
michael@0:   nsresult rv = aParams->SetBooleanValue(STATE_ENABLED, outCmdEnabled);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_setDocumentModified"))
michael@0:   {
michael@0:     bool modified;
michael@0:     rv = editor->GetDocumentModified(&modified);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:     return aParams->SetBooleanValue(STATE_ATTRIBUTE, modified);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_setDocumentReadOnly"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0: 
michael@0:     uint32_t flags;
michael@0:     editor->GetFlags(&flags);
michael@0:     bool isReadOnly = flags & nsIPlaintextEditor::eEditorReadonlyMask;
michael@0:     return aParams->SetBooleanValue(STATE_ATTRIBUTE, isReadOnly);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_setDocumentUseCSS"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLEditor> htmleditor = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(htmleditor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool isCSS;
michael@0:     htmleditor->GetIsCSSEnabled(&isCSS);
michael@0:     return aParams->SetBooleanValue(STATE_ALL, isCSS);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_insertBrOnReturn"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLEditor> htmleditor = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(htmleditor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool createPOnReturn;
michael@0:     htmleditor->GetReturnInParagraphCreatesNewParagraph(&createPOnReturn);
michael@0:     return aParams->SetBooleanValue(STATE_ATTRIBUTE, !createPOnReturn);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_enableObjectResizing"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLObjectResizer> resizer = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(resizer, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool enabled;
michael@0:     resizer->GetObjectResizingEnabled(&enabled);
michael@0:     return aParams->SetBooleanValue(STATE_ATTRIBUTE, enabled);
michael@0:   }
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "cmd_enableInlineTableEditing"))
michael@0:   {
michael@0:     NS_ENSURE_ARG_POINTER(aParams);
michael@0:     nsCOMPtr<nsIHTMLInlineTableEditor> editor = do_QueryInterface(refCon);
michael@0:     NS_ENSURE_TRUE(editor, NS_ERROR_INVALID_ARG);
michael@0: 
michael@0:     bool enabled;
michael@0:     editor->GetInlineTableEditingEnabled(&enabled);
michael@0:     return aParams->SetBooleanValue(STATE_ATTRIBUTE, enabled);
michael@0:   }
michael@0: 
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * Commands just for state notification 
michael@0:  *  As of 11/21/02, possible commands are:
michael@0:  *    "obs_documentCreated"
michael@0:  *    "obs_documentWillBeDestroyed"
michael@0:  *    "obs_documentLocationChanged"
michael@0:  *  Note that you can use the same command class, nsDocumentStateCommand
michael@0:  *    for these or future observer commands.
michael@0:  *    We check the input command param for different behavior
michael@0:  *
michael@0:  *  How to use:
michael@0:  *  1. Get the nsICommandManager for the current editor
michael@0:  *  2. Implement an nsIObserve object, e.g:
michael@0:  *
michael@0:  *    void Observe( 
michael@0:  *        in nsISupports aSubject, // The nsICommandManager calling this Observer
michael@0:  *        in string      aTopic,   // command name, e.g.:"obs_documentCreated"
michael@0:  *                                 //    or "obs_documentWillBeDestroyed"
michael@0:           in wstring     aData );  // ignored (set to "command_status_changed")
michael@0:  *
michael@0:  *  3. Add the observer by:
michael@0:  *       commandManager.addObserver(observeobject, obs_documentCreated);
michael@0:  *  4. In the appropriate location in editorSession, editor, or commands code, 
michael@0:  *     trigger the notification of this observer by something like:
michael@0:  *
michael@0:  *  nsCOMPtr<nsICommandManager> commandManager = do_GetInterface(mDocShell);
michael@0:  *  nsCOMPtr<nsPICommandUpdater> commandUpdater = do_QueryInterface(commandManager);
michael@0:  *  NS_ENSURE_TRUE(commandUpdater, NS_ERROR_FAILURE);
michael@0:  *    commandUpdater->CommandStatusChanged(obs_documentCreated);
michael@0:  *
michael@0:  *  5. Use GetCommandStateParams() to obtain state information
michael@0:  *     e.g., any creation state codes when creating an editor are 
michael@0:  *     supplied for "obs_documentCreated" command in the 
michael@0:  *     "state_data" param's value
michael@0:  *
michael@0:  */
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsDocumentStateCommand::IsCommandEnabled(const char* aCommandName,
michael@0:                                          nsISupports *refCon,
michael@0:                                          bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   // Always return false to discourage callers from using DoCommand()
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsDocumentStateCommand::DoCommand(const char *aCommandName,
michael@0:                                   nsISupports *refCon)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsDocumentStateCommand::DoCommandParams(const char *aCommandName,
michael@0:                                         nsICommandParams *aParams,
michael@0:                                         nsISupports *refCon)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsDocumentStateCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                               nsICommandParams *aParams,
michael@0:                                               nsISupports *refCon)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0:   NS_ENSURE_ARG_POINTER(aCommandName);
michael@0:   nsresult rv;
michael@0: 
michael@0:   if (!nsCRT::strcmp(aCommandName, "obs_documentCreated"))
michael@0:   {
michael@0:     uint32_t editorStatus = nsIEditingSession::eEditorErrorUnknown;
michael@0: 
michael@0:     nsCOMPtr<nsIEditingSession> editingSession = do_QueryInterface(refCon);
michael@0:     if (editingSession)
michael@0:     {
michael@0:       // refCon is initially set to nsIEditingSession until editor
michael@0:       //  is successfully created and source doc is loaded
michael@0:       // Embedder gets error status if this fails
michael@0:       // If called before startup is finished, 
michael@0:       //    status = eEditorCreationInProgress
michael@0:       rv = editingSession->GetEditorStatus(&editorStatus);
michael@0:       NS_ENSURE_SUCCESS(rv, rv);
michael@0:     }
michael@0:     else
michael@0:     {
michael@0:       // If refCon is an editor, then everything started up OK!
michael@0:       nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:       if (editor)
michael@0:         editorStatus = nsIEditingSession::eEditorOK;
michael@0:     }
michael@0: 
michael@0:     // Note that if refCon is not-null, but is neither
michael@0:     // an nsIEditingSession or nsIEditor, we return "eEditorErrorUnknown"
michael@0:     aParams->SetLongValue(STATE_DATA, editorStatus);
michael@0:     return NS_OK;
michael@0:   }  
michael@0:   else if (!nsCRT::strcmp(aCommandName, "obs_documentLocationChanged"))
michael@0:   {
michael@0:     nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:     if (editor)
michael@0:     {
michael@0:       nsCOMPtr<nsIDOMDocument> domDoc;
michael@0:       editor->GetDocument(getter_AddRefs(domDoc));
michael@0:       nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
michael@0:       NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
michael@0: 
michael@0:       nsIURI *uri = doc->GetDocumentURI();
michael@0:       NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
michael@0: 
michael@0:       return aParams->SetISupportsValue(STATE_DATA, (nsISupports*)uri);
michael@0:     }
michael@0:     return NS_OK;
michael@0:   }  
michael@0: 
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }