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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsDocShellEditorData.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMDocument.h"
#include "nsIEditor.h"
#include "nsIEditingSession.h"
#include "nsIDocShell.h"
nsDocShellEditorData::nsDocShellEditorData(nsIDocShell* aOwningDocShell)
: mDocShell(aOwningDocShell)
, mMakeEditable(false)
, mIsDetached(false)
, mDetachedMakeEditable(false)
, mDetachedEditingState(nsIHTMLDocument::eOff)
{
NS_ASSERTION(mDocShell, "Where is my docShell?");
}
nsDocShellEditorData::~nsDocShellEditorData()
{
TearDownEditor();
}
void
nsDocShellEditorData::TearDownEditor()
{
if (mEditor) {
mEditor->PreDestroy(false);
mEditor = nullptr;
}
mEditingSession = nullptr;
mIsDetached = false;
}
nsresult
nsDocShellEditorData::MakeEditable(bool aInWaitForUriLoad)
{
if (mMakeEditable) {
return NS_OK;
}
// if we are already editable, and are getting turned off,
// nuke the editor.
if (mEditor) {
NS_WARNING("Destroying existing editor on frame");
mEditor->PreDestroy(false);
mEditor = nullptr;
}
if (aInWaitForUriLoad) {
mMakeEditable = true;
}
return NS_OK;
}
bool
nsDocShellEditorData::GetEditable()
{
return mMakeEditable || (mEditor != nullptr);
}
nsresult
nsDocShellEditorData::CreateEditor()
{
nsCOMPtr<nsIEditingSession> editingSession;
nsresult rv = GetEditingSession(getter_AddRefs(editingSession));
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsPIDOMWindowOuter> domWindow =
mDocShell ? mDocShell->GetWindow() : nullptr;
rv = editingSession->SetupEditorOnWindow(domWindow);
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
nsresult
nsDocShellEditorData::GetEditingSession(nsIEditingSession** aResult)
{
nsresult rv = EnsureEditingSession();
NS_ENSURE_SUCCESS(rv, rv);
NS_ADDREF(*aResult = mEditingSession);
return NS_OK;
}
nsresult
nsDocShellEditorData::GetEditor(nsIEditor** aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
NS_IF_ADDREF(*aResult = mEditor);
return NS_OK;
}
nsresult
nsDocShellEditorData::SetEditor(nsIEditor* aEditor)
{
// destroy any editor that we have. Checks for equality are
// necessary to ensure that assigment into the nsCOMPtr does
// not temporarily reduce the refCount of the editor to zero
if (mEditor.get() != aEditor) {
if (mEditor) {
mEditor->PreDestroy(false);
mEditor = nullptr;
}
mEditor = aEditor; // owning addref
if (!mEditor) {
mMakeEditable = false;
}
}
return NS_OK;
}
// This creates the editing session on the content docShell that owns 'this'.
nsresult
nsDocShellEditorData::EnsureEditingSession()
{
NS_ASSERTION(mDocShell, "Should have docShell here");
NS_ASSERTION(!mIsDetached, "This will stomp editing session!");
nsresult rv = NS_OK;
if (!mEditingSession) {
mEditingSession =
do_CreateInstance("@mozilla.org/editor/editingsession;1", &rv);
}
return rv;
}
nsresult
nsDocShellEditorData::DetachFromWindow()
{
NS_ASSERTION(mEditingSession,
"Can't detach when we don't have a session to detach!");
nsCOMPtr<nsPIDOMWindowOuter> domWindow =
mDocShell ? mDocShell->GetWindow() : nullptr;
nsresult rv = mEditingSession->DetachFromWindow(domWindow);
NS_ENSURE_SUCCESS(rv, rv);
mIsDetached = true;
mDetachedMakeEditable = mMakeEditable;
mMakeEditable = false;
nsCOMPtr<nsIDocument> doc = domWindow->GetDoc();
nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(doc);
if (htmlDoc) {
mDetachedEditingState = htmlDoc->GetEditingState();
}
mDocShell = nullptr;
return NS_OK;
}
nsresult
nsDocShellEditorData::ReattachToWindow(nsIDocShell* aDocShell)
{
mDocShell = aDocShell;
nsCOMPtr<nsPIDOMWindowOuter> domWindow =
mDocShell ? mDocShell->GetWindow() : nullptr;
nsresult rv = mEditingSession->ReattachToWindow(domWindow);
NS_ENSURE_SUCCESS(rv, rv);
mIsDetached = false;
mMakeEditable = mDetachedMakeEditable;
nsCOMPtr<nsIDocument> doc = domWindow->GetDoc();
nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(doc);
if (htmlDoc) {
htmlDoc->SetEditingState(mDetachedEditingState);
}
return NS_OK;
}
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