зеркало из https://github.com/mozilla/pjs.git
274 строки
7.4 KiB
C++
274 строки
7.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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 the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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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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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIComponentManager.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsIDOMWindow.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsIDOMDocument.h"
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#include "nsDocShellEditorData.h"
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/*---------------------------------------------------------------------------
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nsDocShellEditorData
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----------------------------------------------------------------------------*/
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nsDocShellEditorData::nsDocShellEditorData(nsIDocShell* inOwningDocShell)
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: mDocShell(inOwningDocShell)
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, mMakeEditable(false)
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, mIsDetached(false)
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, mDetachedMakeEditable(false)
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, mDetachedEditingState(nsIHTMLDocument::eOff)
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{
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NS_ASSERTION(mDocShell, "Where is my docShell?");
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}
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/*---------------------------------------------------------------------------
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~nsDocShellEditorData
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----------------------------------------------------------------------------*/
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nsDocShellEditorData::~nsDocShellEditorData()
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{
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TearDownEditor();
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}
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void
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nsDocShellEditorData::TearDownEditor()
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{
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if (mEditor) {
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mEditor->PreDestroy(false);
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mEditor = nsnull;
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}
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mEditingSession = nsnull;
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mIsDetached = false;
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}
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/*---------------------------------------------------------------------------
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MakeEditable
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----------------------------------------------------------------------------*/
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nsresult
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nsDocShellEditorData::MakeEditable(bool inWaitForUriLoad)
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{
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if (mMakeEditable)
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return NS_OK;
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// if we are already editable, and are getting turned off,
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// nuke the editor.
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if (mEditor)
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{
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NS_WARNING("Destroying existing editor on frame");
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mEditor->PreDestroy(false);
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mEditor = nsnull;
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}
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if (inWaitForUriLoad)
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mMakeEditable = true;
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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GetEditable
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----------------------------------------------------------------------------*/
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bool
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nsDocShellEditorData::GetEditable()
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{
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return mMakeEditable || (mEditor != nsnull);
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}
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/*---------------------------------------------------------------------------
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CreateEditor
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----------------------------------------------------------------------------*/
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nsresult
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nsDocShellEditorData::CreateEditor()
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{
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nsCOMPtr<nsIEditingSession> editingSession;
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nsresult rv = GetEditingSession(getter_AddRefs(editingSession));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(mDocShell);
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rv = editingSession->SetupEditorOnWindow(domWindow);
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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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GetEditingSession
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----------------------------------------------------------------------------*/
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nsresult
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nsDocShellEditorData::GetEditingSession(nsIEditingSession **outEditingSession)
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{
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nsresult rv = EnsureEditingSession();
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ADDREF(*outEditingSession = mEditingSession);
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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GetEditor
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----------------------------------------------------------------------------*/
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nsresult
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nsDocShellEditorData::GetEditor(nsIEditor **outEditor)
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{
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NS_ENSURE_ARG_POINTER(outEditor);
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NS_IF_ADDREF(*outEditor = mEditor);
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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SetEditor
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----------------------------------------------------------------------------*/
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nsresult
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nsDocShellEditorData::SetEditor(nsIEditor *inEditor)
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{
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// destroy any editor that we have. Checks for equality are
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// necessary to ensure that assigment into the nsCOMPtr does
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// not temporarily reduce the refCount of the editor to zero
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if (mEditor.get() != inEditor)
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{
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if (mEditor)
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{
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mEditor->PreDestroy(false);
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mEditor = nsnull;
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}
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mEditor = inEditor; // owning addref
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if (!mEditor)
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mMakeEditable = false;
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}
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return NS_OK;
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}
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/*---------------------------------------------------------------------------
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EnsureEditingSession
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This creates the editing session on the content docShell that owns
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'this'.
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----------------------------------------------------------------------------*/
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nsresult
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nsDocShellEditorData::EnsureEditingSession()
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{
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NS_ASSERTION(mDocShell, "Should have docShell here");
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NS_ASSERTION(!mIsDetached, "This will stomp editing session!");
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nsresult rv = NS_OK;
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if (!mEditingSession)
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{
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mEditingSession =
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do_CreateInstance("@mozilla.org/editor/editingsession;1", &rv);
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}
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return rv;
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}
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nsresult
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nsDocShellEditorData::DetachFromWindow()
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{
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NS_ASSERTION(mEditingSession,
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"Can't detach when we don't have a session to detach!");
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nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(mDocShell);
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nsresult rv = mEditingSession->DetachFromWindow(domWindow);
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NS_ENSURE_SUCCESS(rv, rv);
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mIsDetached = true;
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mDetachedMakeEditable = mMakeEditable;
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mMakeEditable = false;
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nsCOMPtr<nsIDOMDocument> domDoc;
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domWindow->GetDocument(getter_AddRefs(domDoc));
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nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(domDoc);
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if (htmlDoc)
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mDetachedEditingState = htmlDoc->GetEditingState();
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mDocShell = nsnull;
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return NS_OK;
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}
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nsresult
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nsDocShellEditorData::ReattachToWindow(nsIDocShell* aDocShell)
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{
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mDocShell = aDocShell;
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nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(mDocShell);
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nsresult rv = mEditingSession->ReattachToWindow(domWindow);
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NS_ENSURE_SUCCESS(rv, rv);
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mIsDetached = false;
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mMakeEditable = mDetachedMakeEditable;
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nsCOMPtr<nsIDOMDocument> domDoc;
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domWindow->GetDocument(getter_AddRefs(domDoc));
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nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(domDoc);
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if (htmlDoc)
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htmlDoc->SetEditingState(mDetachedEditingState);
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return NS_OK;
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}
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