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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
#include "nsDocShellEditorData.h"
#include "mozilla/dom/Document.h"
#include "mozilla/HTMLEditor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsPIDOMWindow.h"
#include "nsEditingSession.h"
#include "nsIDocShell.h"
using namespace mozilla;
using namespace mozilla::dom;
nsDocShellEditorData::nsDocShellEditorData(nsIDocShell* aOwningDocShell)
: mDocShell(aOwningDocShell),
mDetachedEditingState(Document::EditingState::eOff),
mMakeEditable(false),
mIsDetached(false),
mDetachedMakeEditable(false) {
NS_ASSERTION(mDocShell, "Where is my docShell?");
}
nsDocShellEditorData::~nsDocShellEditorData() { TearDownEditor(); }
void nsDocShellEditorData::TearDownEditor() {
if (mHTMLEditor) {
RefPtr<HTMLEditor> htmlEditor = std::move(mHTMLEditor);
htmlEditor->PreDestroy();
}
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 (mHTMLEditor) {
NS_WARNING("Destroying existing editor on frame");
RefPtr<HTMLEditor> htmlEditor = std::move(mHTMLEditor);
htmlEditor->PreDestroy();
}
if (aInWaitForUriLoad) {
mMakeEditable = true;
}
return NS_OK;
}
bool nsDocShellEditorData::GetEditable() {
return mMakeEditable || (mHTMLEditor != nullptr);
}
nsEditingSession* nsDocShellEditorData::GetEditingSession() {
EnsureEditingSession();
return mEditingSession.get();
}
nsresult nsDocShellEditorData::SetHTMLEditor(HTMLEditor* aHTMLEditor) {
// 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 (mHTMLEditor == aHTMLEditor) {
return NS_OK;
}
if (mHTMLEditor) {
RefPtr<HTMLEditor> htmlEditor = std::move(mHTMLEditor);
htmlEditor->PreDestroy();
MOZ_ASSERT(!mHTMLEditor,
"Nested call of nsDocShellEditorData::SetHTMLEditor() detected");
}
mHTMLEditor = aHTMLEditor; // owning addref
if (!mHTMLEditor) {
mMakeEditable = false;
}
return NS_OK;
}
// This creates the editing session on the content docShell that owns 'this'.
void nsDocShellEditorData::EnsureEditingSession() {
NS_ASSERTION(mDocShell, "Should have docShell here");
NS_ASSERTION(!mIsDetached, "This will stomp editing session!");
if (!mEditingSession) {
mEditingSession = new nsEditingSession();
}
}
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<dom::Document> doc = domWindow->GetDoc();
mDetachedEditingState = doc->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;
RefPtr<dom::Document> doc = domWindow->GetDoc();
doc->SetEditingState(mDetachedEditingState);
return NS_OK;
}