682 lines
20 KiB
C++
682 lines
20 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Simon Fraser <sfraser@netscape.com>
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIDOMWindow.h"
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#include "nsIDOMWindowInternal.h"
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#include "nsIDOMDocument.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsISelectionPrivate.h"
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#include "nsITransactionManager.h"
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#include "nsIEditorDocShell.h"
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#include "nsIChannel.h"
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#include "nsIWebProgress.h"
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#include "nsIControllers.h"
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#include "nsIController.h"
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#include "nsIEditorController.h"
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#include "nsIPresShell.h"
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#include "nsComposerCommandsUpdater.h"
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#include "nsEditingSession.h"
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#include "nsIComponentManager.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#if DEBUG
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#define NOISY_DOC_LOADING 1
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#endif
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/*---------------------------------------------------------------------------
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nsEditingSession
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----------------------------------------------------------------------------*/
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nsEditingSession::nsEditingSession()
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: mDoneSetup(PR_FALSE)
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{
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NS_INIT_ISUPPORTS();
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}
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/*---------------------------------------------------------------------------
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~nsEditingSession
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----------------------------------------------------------------------------*/
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nsEditingSession::~nsEditingSession()
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{
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NS_IF_RELEASE(mStateMaintainer);
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}
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NS_IMPL_ISUPPORTS3(nsEditingSession, nsIEditingSession, nsIWebProgressListener, nsISupportsWeakReference)
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/*---------------------------------------------------------------------------
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GetEditingShell
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void init (in nsIDOMWindow aWindow)
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::Init(nsIDOMWindow *aWindow)
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{
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nsCOMPtr<nsIDocShell> docShell;
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nsresult rv = GetDocShellFromWindow(aWindow, getter_AddRefs(docShell));
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if (NS_FAILED(rv)) return rv;
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mEditingShell = getter_AddRefs(NS_GetWeakReference(docShell));
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if (!mEditingShell) return NS_ERROR_NO_INTERFACE;
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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MakeWindowEditable
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void makeWindowEditable (in nsIDOMWindow aWindow, in boolean inDoAfterUriLoad);
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::MakeWindowEditable(nsIDOMWindow *aWindow, PRBool inDoAfterUriLoad)
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{
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nsresult rv = PrepareForEditing();
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIEditorDocShell> editorDocShell;
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rv = GetEditorDocShellFromWindow(aWindow, getter_AddRefs(editorDocShell));
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if (NS_FAILED(rv)) return rv;
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// set the flag on the docShell to say that it's editable
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rv = editorDocShell->MakeEditable(inDoAfterUriLoad);
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if (NS_FAILED(rv)) return rv;
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rv = SetupFrameControllers(aWindow);
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if (NS_FAILED(rv)) return rv;
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// make an editor immediately
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if (!inDoAfterUriLoad)
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{
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rv = SetupEditorOnWindow(aWindow);
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if (NS_FAILED(rv)) return rv;
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}
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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WindowIsEditable
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boolean windowIsEditable (in nsIDOMWindow aWindow);
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP nsEditingSession::WindowIsEditable(nsIDOMWindow *aWindow, PRBool *outIsEditable)
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{
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nsCOMPtr<nsIEditorDocShell> editorDocShell;
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nsresult rv = GetEditorDocShellFromWindow(aWindow, getter_AddRefs(editorDocShell));
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if (NS_FAILED(rv)) return rv;
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return editorDocShell->GetEditable(outIsEditable);
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}
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/*---------------------------------------------------------------------------
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SetupEditorOnWindow
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nsIEditor setupEditorOnWindow (in nsIDOMWindow aWindow);
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::SetupEditorOnWindow(nsIDOMWindow *aWindow)
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{
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nsresult rv = PrepareForEditing();
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIDocShell> docShell;
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rv = GetDocShellFromWindow(aWindow, getter_AddRefs(docShell));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIEditorDocShell> editorDocShell(do_QueryInterface(docShell, &rv));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIEditor> editor(do_CreateInstance("@mozilla.org/editor/htmleditor;1", &rv));
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if (NS_FAILED(rv)) return rv;
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// set the editor on the docShell. The docShell now owns it.
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rv = editorDocShell->SetEditor(editor);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIPresShell> presShell;
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rv = docShell->GetPresShell(getter_AddRefs(presShell));
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if (NS_FAILED(rv)) return rv;
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if (!presShell) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIContentViewer> contentViewer;
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rv = docShell->GetContentViewer(getter_AddRefs(contentViewer));
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if (NS_FAILED(rv)) return rv;
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if (!contentViewer) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMDocument> domDoc;
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rv = contentViewer->GetDOMDocument(getter_AddRefs(domDoc));
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if (NS_FAILED(rv)) return rv;
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if (!domDoc) return NS_ERROR_FAILURE;
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nsCOMPtr<nsISelectionController> selCon = do_QueryInterface(presShell);
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rv = editor->Init(domDoc, presShell, nsnull /* root content */, selCon, 0);
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if (NS_FAILED(rv)) return rv;
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rv = editor->PostCreate();
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if (NS_FAILED(rv)) return rv;
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// set the editor on the controller
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rv = SetEditorOnControllers(aWindow, editor);
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if (NS_FAILED(rv)) return rv;
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// make the UI state maintainer
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NS_NEWXPCOM(mStateMaintainer, nsComposerCommandsUpdater);
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if (!mStateMaintainer) return NS_ERROR_OUT_OF_MEMORY;
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mStateMaintainer->AddRef(); // the owning reference
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// now init the state maintainer
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// XXX this needs to swap out editors
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rv = mStateMaintainer->Init(editor);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsISelection> selection;
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editor->GetSelection(getter_AddRefs(selection));
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nsCOMPtr<nsISelectionPrivate> selPriv = do_QueryInterface(selection);
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if (!selPriv) return NS_ERROR_FAILURE;
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rv = selPriv->AddSelectionListener(mStateMaintainer);
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if (NS_FAILED(rv)) return rv;
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// and set it up as a doc state listener
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rv = editor->AddDocumentStateListener(NS_STATIC_CAST(nsIDocumentStateListener*, mStateMaintainer));
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if (NS_FAILED(rv)) return rv;
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// and as a transaction listener
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nsCOMPtr<nsITransactionManager> txnMgr;
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editor->GetTransactionManager(getter_AddRefs(txnMgr));
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if (txnMgr)
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{
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txnMgr->AddListener(NS_STATIC_CAST(nsITransactionListener*, mStateMaintainer));
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}
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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TearDownEditorOnWindow
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void tearDownEditorOnWindow (in nsIDOMWindow aWindow);
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::TearDownEditorOnWindow(nsIDOMWindow *aWindow)
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{
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nsresult rv;
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// null out the editor on the controller
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rv = SetEditorOnControllers(aWindow, nsnull);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIEditorDocShell> editorDocShell;
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rv = GetEditorDocShellFromWindow(aWindow, getter_AddRefs(editorDocShell));
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if (NS_FAILED(rv)) return rv;
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// null out the editor on the docShell
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rv = editorDocShell->SetEditor(nsnull);
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if (NS_FAILED(rv)) return rv;
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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GetEditorForFrame
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nsIEditor getEditorForFrame (in nsIDOMWindow aWindow);
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::GetEditorForWindow(nsIDOMWindow *aWindow, nsIEditor **outEditor)
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{
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nsCOMPtr<nsIEditorDocShell> editorDocShell;
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nsresult rv = GetEditorDocShellFromWindow(aWindow, getter_AddRefs(editorDocShell));
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if (NS_FAILED(rv)) return rv;
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return editorDocShell->GetEditor(outEditor);
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}
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#ifdef XP_MAC
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#pragma mark -
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#endif
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/*---------------------------------------------------------------------------
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OnStateChange
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::OnStateChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRInt32 aStateFlags, PRUint32 aStatus)
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{
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//
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// A Request has started...
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//
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if (aStateFlags & nsIWebProgressListener::STATE_START)
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{
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// Page level notification...
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if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK)
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{
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StartPageLoad(aWebProgress);
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}
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// Document level notification...
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if (aStateFlags & nsIWebProgressListener::STATE_IS_DOCUMENT)
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{
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if (NotifyingCurrentDocument(aWebProgress))
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(void)StartDocumentLoad(aWebProgress);
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}
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}
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//
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// A Request is being processed
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//
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else if (aStateFlags & nsIWebProgressListener::STATE_TRANSFERRING)
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{
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if (aStateFlags * nsIWebProgressListener::STATE_IS_DOCUMENT)
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{
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// document transfer started
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}
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}
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//
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// Got a redirection
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//
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else if (aStateFlags & nsIWebProgressListener::STATE_REDIRECTING)
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{
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if (aStateFlags * nsIWebProgressListener::STATE_IS_DOCUMENT)
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{
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// got a redirect
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}
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}
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//
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// A network or document Request as finished...
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//
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else if (aStateFlags & nsIWebProgressListener::STATE_STOP)
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{
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// Document level notification...
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if (aStateFlags & nsIWebProgressListener::STATE_IS_DOCUMENT)
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{
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if (NotifyingCurrentDocument(aWebProgress))
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{
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nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest));
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(void)EndDocumentLoad(aWebProgress, channel, aStatus);
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}
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}
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// Page level notification...
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if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK)
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{
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nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest));
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(void)EndPageLoad(aWebProgress, channel, aStatus);
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}
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}
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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OnProgressChange
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::OnProgressChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRInt32 aCurSelfProgress, PRInt32 aMaxSelfProgress, PRInt32 aCurTotalProgress, PRInt32 aMaxTotalProgress)
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{
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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OnLocationChange
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::OnLocationChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsIURI *location)
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{
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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OnStatusChange
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::OnStatusChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsresult aStatus, const PRUnichar *aMessage)
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{
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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OnSecurityChange
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----------------------------------------------------------------------------*/
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NS_IMETHODIMP
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nsEditingSession::OnSecurityChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRInt32 state)
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{
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return NS_OK;
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}
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#ifdef XP_MAC
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#pragma mark -
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#endif
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/*---------------------------------------------------------------------------
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NotifyingCurrentDocument
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Check that this notification is for our document. Necessary?
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----------------------------------------------------------------------------*/
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PRBool
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nsEditingSession::NotifyingCurrentDocument(nsIWebProgress *aWebProgress)
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{
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return PR_TRUE;
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}
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/*---------------------------------------------------------------------------
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StartDocumentLoad
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Called on start of load in a single frame
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----------------------------------------------------------------------------*/
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nsresult
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nsEditingSession::StartDocumentLoad(nsIWebProgress *aWebProgress)
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{
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#ifdef NOISY_DOC_LOADING
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printf("Editing session StartDocumentLoad\n");
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#endif
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NS_ENSURE_ARG(aWebProgress);
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// If we have an editor here, then we got a reload after making the editor.
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// We need to blow it away and make a new one at the end of the load.
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nsCOMPtr<nsIDOMWindow> domWindow;
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aWebProgress->GetDOMWindow(getter_AddRefs(domWindow));
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if (domWindow)
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{
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nsresult rv = TearDownEditorOnWindow(domWindow);
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}
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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EndDocumentLoad
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Called on end of load in a single frame
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----------------------------------------------------------------------------*/
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nsresult
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nsEditingSession::EndDocumentLoad(nsIWebProgress *aWebProgress, nsIChannel* aChannel, nsresult aStatus)
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{
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NS_ENSURE_ARG(aWebProgress);
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#ifdef NOISY_DOC_LOADING
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printf("Editing shell EndDocumentLoad\n");
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#endif
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// we want to call the base class EndDocumentLoad, but avoid some of the stuff
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// that nsWebShell does (need to refactor).
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// OK, time to make an editor on this document
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nsCOMPtr<nsIDOMWindow> domWindow;
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aWebProgress->GetDOMWindow(getter_AddRefs(domWindow));
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nsCOMPtr<nsIDocShell> docShell;
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nsresult rv = GetDocShellFromWindow(domWindow, getter_AddRefs(docShell));
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if (NS_FAILED(rv)) return rv; // better error handling?
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nsCOMPtr<nsIEditorDocShell> editorDocShell(do_QueryInterface(docShell));
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// did someone set the flag to make this shell editable?
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if (editorDocShell)
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{
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PRBool makeEditable;
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editorDocShell->GetEditable(&makeEditable);
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if (makeEditable)
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{
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nsresult rv = SetupEditorOnWindow(domWindow);
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}
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}
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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StartPageLoad
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Called on start load of the entire page (incl. subframes)
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----------------------------------------------------------------------------*/
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nsresult
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nsEditingSession::StartPageLoad(nsIWebProgress *aWebProgress)
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{
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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EndPageLoad
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Called on end load of the entire page (incl. subframes)
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----------------------------------------------------------------------------*/
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nsresult
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nsEditingSession::EndPageLoad(nsIWebProgress *aWebProgress, nsIChannel* aChannel, nsresult aStatus)
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{
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return NS_OK;
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}
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#ifdef XP_MAC
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#pragma mark -
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#endif
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/*---------------------------------------------------------------------------
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GetDocShellFromWindow
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Utility method. This will always return an error if no docShell
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is returned.
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----------------------------------------------------------------------------*/
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nsresult
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nsEditingSession::GetDocShellFromWindow(nsIDOMWindow *inWindow, nsIDocShell** outDocShell)
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{
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nsCOMPtr<nsIScriptGlobalObject> scriptGO(do_QueryInterface(inWindow));
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if (!scriptGO) return NS_ERROR_FAILURE;
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nsresult rv = scriptGO->GetDocShell(outDocShell);
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if (NS_FAILED(rv)) return rv;
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if (!*outDocShell) return NS_ERROR_FAILURE;
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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GetEditorDocShellFromWindow
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Utility method. This will always return an error if no docShell
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is returned.
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----------------------------------------------------------------------------*/
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nsresult
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nsEditingSession::GetEditorDocShellFromWindow(nsIDOMWindow *inWindow, nsIEditorDocShell** outDocShell)
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{
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nsCOMPtr<nsIDocShell> docShell;
|
|
nsresult rv = GetDocShellFromWindow(inWindow, getter_AddRefs(docShell));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return docShell->QueryInterface(NS_GET_IID(nsIEditorDocShell), outDocShell);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
|
|
PrepareForEditing
|
|
|
|
Set up this editing session for one or more editors
|
|
----------------------------------------------------------------------------*/
|
|
nsresult
|
|
nsEditingSession::PrepareForEditing()
|
|
{
|
|
if (mDoneSetup)
|
|
return NS_OK;
|
|
|
|
mDoneSetup = PR_TRUE;
|
|
|
|
nsCOMPtr<nsIDocShell> docShell = do_QueryReferent(mEditingShell);
|
|
if (!docShell) return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(docShell);
|
|
if (!domWindow) return NS_ERROR_FAILURE;
|
|
|
|
// register callback
|
|
nsCOMPtr<nsIWebProgress> webProgress = do_GetInterface(docShell);
|
|
if (!webProgress) return NS_ERROR_FAILURE;
|
|
|
|
nsresult rv = webProgress->AddProgressListener(this);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
|
|
SetupFrameControllers
|
|
|
|
Set up the controller for this frame.
|
|
----------------------------------------------------------------------------*/
|
|
nsresult
|
|
nsEditingSession::SetupFrameControllers(nsIDOMWindow *inWindow)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIDOMWindowInternal> domWindowInt(do_QueryInterface(inWindow, &rv));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsCOMPtr<nsIControllers> controllers;
|
|
rv = domWindowInt->GetControllers(getter_AddRefs(controllers));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// the first is an editor controller, and takes an nsIEditor as the refCon
|
|
nsCOMPtr<nsIController> controller(do_CreateInstance("@mozilla.org/editor/editorcontroller;1", &rv));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsCOMPtr<nsIEditorController> editorController(do_QueryInterface(controller));
|
|
rv = editorController->Init(nsnull); // we set the editor later when we have one
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = controllers->InsertControllerAt(0, controller);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// the second is an composer controller, and also takes an nsIEditor as the refCon
|
|
controller = do_CreateInstance("@mozilla.org/editor/composercontroller;1", &rv);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsCOMPtr<nsIEditorController> composerController(do_QueryInterface(controller));
|
|
rv = composerController->Init(nsnull); // we set the editor later when we have one
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = controllers->InsertControllerAt(1, controller);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
|
|
SetEditorOnControllers
|
|
|
|
Set the editor on the controller(s) for this window
|
|
----------------------------------------------------------------------------*/
|
|
nsresult
|
|
nsEditingSession::SetEditorOnControllers(nsIDOMWindow *inWindow, nsIEditor* inEditor)
|
|
{
|
|
nsresult rv;
|
|
|
|
// set the editor on the controller
|
|
nsCOMPtr<nsIDOMWindowInternal> domWindowInt(do_QueryInterface(inWindow, &rv));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsCOMPtr<nsIControllers> controllers;
|
|
rv = domWindowInt->GetControllers(getter_AddRefs(controllers));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// find the editor controllers by QIing each one. This sucks.
|
|
// Controllers need to have IDs of some kind.
|
|
PRUint32 numControllers;
|
|
rv = controllers->GetControllerCount(&numControllers);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
for (PRUint32 i = 0; i < numControllers; i ++)
|
|
{
|
|
nsCOMPtr<nsIController> thisController;
|
|
controllers->GetControllerAt(i, getter_AddRefs(thisController));
|
|
|
|
nsCOMPtr<nsIEditorController> editorController(do_QueryInterface(thisController)); // ok with nil controller
|
|
if (editorController)
|
|
{
|
|
rv = editorController->SetCommandRefCon(inEditor);
|
|
if (NS_FAILED(rv)) break;
|
|
}
|
|
}
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|