зеркало из https://github.com/mozilla/pjs.git
392 строки
13 KiB
C++
392 строки
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998-1999
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Pierre Phaneuf <pp@ludusdesign.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "IMETextTxn.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsIDOMRange.h"
|
|
#include "nsIPrivateTextRange.h"
|
|
#include "nsISelection.h"
|
|
#include "nsISelectionPrivate.h"
|
|
#include "nsISelectionController.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
|
|
// #define DEBUG_IMETXN
|
|
|
|
nsIAtom *IMETextTxn::gIMETextTxnName = nsnull;
|
|
|
|
nsresult IMETextTxn::ClassInit()
|
|
{
|
|
if (!gIMETextTxnName)
|
|
gIMETextTxnName = NS_NewAtom("NS_IMETextTxn");
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult IMETextTxn::ClassShutdown()
|
|
{
|
|
NS_IF_RELEASE(gIMETextTxnName);
|
|
return NS_OK;
|
|
}
|
|
|
|
IMETextTxn::IMETextTxn()
|
|
: EditTxn()
|
|
{
|
|
}
|
|
|
|
IMETextTxn::~IMETextTxn()
|
|
{
|
|
mRangeList = do_QueryInterface(nsnull);
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::Init(nsIDOMCharacterData *aElement,
|
|
PRUint32 aOffset,
|
|
PRUint32 aReplaceLength,
|
|
nsIPrivateTextRangeList *aTextRangeList,
|
|
const nsAString &aStringToInsert,
|
|
nsWeakPtr aSelConWeak)
|
|
{
|
|
NS_ASSERTION(aElement, "illegal value- null ptr- aElement");
|
|
NS_ASSERTION(aTextRangeList, "illegal value- null ptr - aTextRangeList");
|
|
if (!aElement || !aTextRangeList)
|
|
return NS_ERROR_NULL_POINTER;
|
|
mElement = do_QueryInterface(aElement);
|
|
mOffset = aOffset;
|
|
mReplaceLength = aReplaceLength;
|
|
mStringToInsert = aStringToInsert;
|
|
mSelConWeak = aSelConWeak;
|
|
mRangeList = do_QueryInterface(aTextRangeList);
|
|
mFixed = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::DoTransaction(void)
|
|
{
|
|
|
|
#ifdef DEBUG_IMETXN
|
|
printf("Do IME Text element = %p replace = %d len = %d\n", mElement.get(), mReplaceLength, mStringToInsert.Length());
|
|
#endif
|
|
|
|
nsCOMPtr<nsISelectionController> selCon = do_QueryReferent(mSelConWeak);
|
|
if (!selCon) return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
// advance caret: This requires the presentation shell to get the selection.
|
|
nsresult result;
|
|
if (mReplaceLength == 0) {
|
|
result = mElement->InsertData(mOffset, mStringToInsert);
|
|
} else {
|
|
result = mElement->ReplaceData(mOffset, mReplaceLength, mStringToInsert);
|
|
}
|
|
if (NS_SUCCEEDED(result)) {
|
|
result = CollapseTextSelection();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::UndoTransaction(void)
|
|
{
|
|
#ifdef DEBUG_IMETXN
|
|
printf("Undo IME Text element = %p\n", mElement.get());
|
|
#endif
|
|
|
|
nsCOMPtr<nsISelectionController> selCon = do_QueryReferent(mSelConWeak);
|
|
if (!selCon) return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
nsresult result = mElement->DeleteData(mOffset, mStringToInsert.Length());
|
|
if (NS_SUCCEEDED(result))
|
|
{ // set the selection to the insertion point where the string was removed
|
|
nsCOMPtr<nsISelection> selection;
|
|
result = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
|
|
if (NS_SUCCEEDED(result) && selection) {
|
|
result = selection->Collapse(mElement, mOffset);
|
|
NS_ASSERTION((NS_SUCCEEDED(result)), "selection could not be collapsed after undo of IME insert.");
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::Merge(nsITransaction *aTransaction, PRBool *aDidMerge)
|
|
{
|
|
NS_ASSERTION(aDidMerge, "illegal vaule- null ptr- aDidMerge");
|
|
NS_ASSERTION(aTransaction, "illegal vaule- null ptr- aTransaction");
|
|
if (!aDidMerge || !aTransaction)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
#ifdef DEBUG_IMETXN
|
|
printf("Merge IME Text element = %p\n", mElement.get());
|
|
#endif
|
|
|
|
//
|
|
// check to make sure we aren't fixed, if we are then nothing get's absorbed
|
|
//
|
|
if (mFixed) {
|
|
*aDidMerge = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// if aTransaction is another IMETextTxn then absorb it
|
|
//
|
|
IMETextTxn* otherTxn = nsnull;
|
|
nsresult result = aTransaction->QueryInterface(IMETextTxn::GetCID(),(void**)&otherTxn);
|
|
if (otherTxn && NS_SUCCEEDED(result))
|
|
{
|
|
//
|
|
// we absorb the next IME transaction by adopting its insert string as our own
|
|
//
|
|
nsIPrivateTextRangeList* newTextRangeList;
|
|
otherTxn->GetData(mStringToInsert,&newTextRangeList);
|
|
mRangeList = do_QueryInterface(newTextRangeList);
|
|
*aDidMerge = PR_TRUE;
|
|
#ifdef DEBUG_IMETXN
|
|
printf("IMETextTxn assimilated IMETextTxn:%p\n", aTransaction);
|
|
#endif
|
|
NS_RELEASE(otherTxn);
|
|
return NS_OK;
|
|
}
|
|
|
|
*aDidMerge = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::MarkFixed(void)
|
|
{
|
|
mFixed = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::GetTxnDescription(nsAString& aString)
|
|
{
|
|
aString.AssignLiteral("IMETextTxn: ");
|
|
aString += mStringToInsert;
|
|
return NS_OK;
|
|
}
|
|
|
|
/* ============= nsISupports implementation ====================== */
|
|
|
|
NS_IMETHODIMP
|
|
IMETextTxn::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
if (nsnull == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
if (aIID.Equals(IMETextTxn::GetCID())) {
|
|
*aInstancePtr = (void*)(IMETextTxn*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return (EditTxn::QueryInterface(aIID, aInstancePtr));
|
|
}
|
|
|
|
/* ============ protected methods ================== */
|
|
static SelectionType TextRangeToSelection(int aTextRangeType)
|
|
{
|
|
switch(aTextRangeType)
|
|
{
|
|
case nsIPrivateTextRange::TEXTRANGE_RAWINPUT:
|
|
return nsISelectionController::SELECTION_IME_RAWINPUT;
|
|
case nsIPrivateTextRange::TEXTRANGE_SELECTEDRAWTEXT:
|
|
return nsISelectionController::SELECTION_IME_SELECTEDRAWTEXT;
|
|
case nsIPrivateTextRange::TEXTRANGE_CONVERTEDTEXT:
|
|
return nsISelectionController::SELECTION_IME_CONVERTEDTEXT;
|
|
case nsIPrivateTextRange::TEXTRANGE_SELECTEDCONVERTEDTEXT:
|
|
return nsISelectionController::SELECTION_IME_SELECTEDCONVERTEDTEXT;
|
|
case nsIPrivateTextRange::TEXTRANGE_CARETPOSITION:
|
|
default:
|
|
return nsISelectionController::SELECTION_NORMAL;
|
|
};
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::GetData(nsString& aResult,nsIPrivateTextRangeList** aTextRangeList)
|
|
{
|
|
NS_ASSERTION(aTextRangeList, "illegal value- null ptr- aTextRangeList");
|
|
if (!aTextRangeList)
|
|
return NS_ERROR_NULL_POINTER;
|
|
aResult = mStringToInsert;
|
|
*aTextRangeList = mRangeList;
|
|
return NS_OK;
|
|
}
|
|
|
|
static SelectionType sel[4]=
|
|
{
|
|
nsISelectionController::SELECTION_IME_RAWINPUT,
|
|
nsISelectionController::SELECTION_IME_SELECTEDRAWTEXT,
|
|
nsISelectionController::SELECTION_IME_CONVERTEDTEXT,
|
|
nsISelectionController::SELECTION_IME_SELECTEDCONVERTEDTEXT
|
|
};
|
|
|
|
NS_IMETHODIMP IMETextTxn::CollapseTextSelection(void)
|
|
{
|
|
nsresult result;
|
|
PRUint16 i;
|
|
|
|
#ifdef DEBUG_IMETXN
|
|
PRUint16 listlen,start,stop,type;
|
|
result = mRangeList->GetLength(&listlen);
|
|
printf("nsIPrivateTextRangeList[%p]\n",mRangeList);
|
|
nsIPrivateTextRange* rangePtr;
|
|
for (i=0;i<listlen;i++) {
|
|
(void)mRangeList->Item(i,&rangePtr);
|
|
rangePtr->GetRangeStart(&start);
|
|
rangePtr->GetRangeEnd(&stop);
|
|
rangePtr->GetRangeType(&type);
|
|
printf("range[%d] start=%d end=%d type=",i,start,stop,type);
|
|
if (type==nsIPrivateTextRange::TEXTRANGE_RAWINPUT)
|
|
printf("TEXTRANGE_RAWINPUT\n");
|
|
else if (type==nsIPrivateTextRange::TEXTRANGE_SELECTEDRAWTEXT)
|
|
printf("TEXTRANGE_SELECTEDRAWTEXT\n");
|
|
else if (type==nsIPrivateTextRange::TEXTRANGE_CONVERTEDTEXT)
|
|
printf("TEXTRANGE_CONVERTEDTEXT\n");
|
|
else if (type==nsIPrivateTextRange::TEXTRANGE_SELECTEDCONVERTEDTEXT)
|
|
printf("TEXTRANGE_SELECTEDCONVERTEDTEXT\n");
|
|
else if (type==nsIPrivateTextRange::TEXTRANGE_CARETPOSITION)
|
|
printf("TEXTRANGE_CARETPOSITION\n");
|
|
else printf("unknown constant\n");
|
|
}
|
|
#endif
|
|
|
|
//
|
|
// run through the text range list, if any
|
|
//
|
|
nsCOMPtr<nsISelectionController> selCon = do_QueryReferent(mSelConWeak);
|
|
if (!selCon) return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
PRUint16 textRangeListLength,selectionStart,selectionEnd,
|
|
textRangeType;
|
|
|
|
result = mRangeList->GetLength(&textRangeListLength);
|
|
if(NS_FAILED(result))
|
|
return result;
|
|
nsCOMPtr<nsISelection> selection;
|
|
result = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
|
|
if(NS_SUCCEEDED(result))
|
|
{
|
|
nsCOMPtr<nsISelectionPrivate> selPriv(do_QueryInterface(selection));
|
|
result = selPriv->StartBatchChanges();
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
nsCOMPtr<nsISelection> imeSel;
|
|
for(PRInt8 selIdx = 0; selIdx < 4;selIdx++)
|
|
{
|
|
result = selCon->GetSelection(sel[selIdx], getter_AddRefs(imeSel));
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
result = imeSel->RemoveAllRanges();
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot ClearSelection");
|
|
// we just ignore the result and clean up the next one here
|
|
}
|
|
}
|
|
|
|
nsIPrivateTextRange* textRange;
|
|
PRBool setCaret=PR_FALSE;
|
|
for(i=0;i<textRangeListLength;i++)
|
|
{
|
|
result = mRangeList->Item(i,&textRange);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "cannot get item");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
result = textRange->GetRangeType(&textRangeType);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "cannot get range type");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
result = textRange->GetRangeStart(&selectionStart);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "cannot get range start");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
result = textRange->GetRangeEnd(&selectionEnd);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "cannot get range end");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
if(nsIPrivateTextRange::TEXTRANGE_CARETPOSITION == textRangeType)
|
|
{
|
|
// Set the caret....
|
|
result = selection->Collapse(mElement,
|
|
mOffset+selectionStart);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot Collapse");
|
|
if(NS_SUCCEEDED(result))
|
|
setCaret = PR_TRUE;
|
|
} else {
|
|
// NS_ASSERTION(selectionStart != selectionEnd, "end == start");
|
|
if(selectionStart == selectionEnd)
|
|
continue;
|
|
|
|
result= selCon->GetSelection(TextRangeToSelection(textRangeType),
|
|
getter_AddRefs(imeSel));
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot get selction");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
nsCOMPtr<nsIDOMRange> newRange = do_CreateInstance(
|
|
"@mozilla.org/content/range;1", &result);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot create new nsIDOMRange");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
newRange->SetStart(mElement,mOffset+selectionStart);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot SetStart");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
newRange->SetEnd(mElement,mOffset+selectionEnd);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot SetEnd");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
imeSel->AddRange(newRange);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot AddRange");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
} // if GetRangeEnd
|
|
} // for textRangeListLength
|
|
if(! setCaret) {
|
|
// set cursor
|
|
result = selection->Collapse(mElement,mOffset+mStringToInsert.Length());
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot Collapse");
|
|
}
|
|
result = selPriv->EndBatchChanges();
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot EndBatchChanges");
|
|
} // if StartBatchChanges
|
|
} // if GetSelection
|
|
|
|
return result;
|
|
}
|
|
|