mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
364 lines
13 KiB
C++
364 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "IMETextTxn.h"
|
|
#include "mozilla/mozalloc.h" // for operator new
|
|
#include "nsAString.h" // for nsAString_internal::Length, etc
|
|
#include "nsAutoPtr.h" // for nsRefPtr
|
|
#include "nsDebug.h" // for NS_ASSERTION, etc
|
|
#include "nsError.h" // for NS_SUCCEEDED, NS_FAILED, etc
|
|
#include "nsGUIEvent.h" // for nsTextRangeStyle
|
|
#include "nsIDOMCharacterData.h" // for nsIDOMCharacterData
|
|
#include "nsIDOMRange.h" // for nsRange::SetEnd, etc
|
|
#include "nsIEditor.h" // for nsIEditor
|
|
#include "nsIPresShell.h" // for SelectionType
|
|
#include "nsIPrivateTextRange.h" // for nsIPrivateTextRange, etc
|
|
#include "nsISelection.h" // for nsISelection
|
|
#include "nsISelectionController.h" // for nsISelectionController, etc
|
|
#include "nsISelectionPrivate.h" // for nsISelectionPrivate
|
|
#include "nsISupportsImpl.h" // for nsRange::AddRef, etc
|
|
#include "nsISupportsUtils.h" // for NS_ADDREF_THIS, NS_RELEASE
|
|
#include "nsITransaction.h" // for nsITransaction
|
|
#include "nsRange.h" // for nsRange
|
|
#include "nsString.h" // for nsString
|
|
|
|
// #define DEBUG_IMETXN
|
|
|
|
IMETextTxn::IMETextTxn()
|
|
: EditTxn()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED_1(IMETextTxn, EditTxn,
|
|
mElement)
|
|
// mRangeList can't lead to cycles
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IMETextTxn)
|
|
if (aIID.Equals(IMETextTxn::GetCID())) {
|
|
*aInstancePtr = (void*)(IMETextTxn*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
} else
|
|
NS_INTERFACE_MAP_END_INHERITING(EditTxn)
|
|
|
|
NS_IMETHODIMP IMETextTxn::Init(nsIDOMCharacterData *aElement,
|
|
uint32_t aOffset,
|
|
uint32_t aReplaceLength,
|
|
nsIPrivateTextRangeList *aTextRangeList,
|
|
const nsAString &aStringToInsert,
|
|
nsIEditor *aEditor)
|
|
{
|
|
NS_ASSERTION(aElement, "illegal value- null ptr- aElement");
|
|
NS_ASSERTION(aTextRangeList, "illegal value- null ptr - aTextRangeList");
|
|
NS_ENSURE_TRUE(aElement && aTextRangeList, NS_ERROR_NULL_POINTER);
|
|
mElement = do_QueryInterface(aElement);
|
|
mOffset = aOffset;
|
|
mReplaceLength = aReplaceLength;
|
|
mStringToInsert = aStringToInsert;
|
|
mEditor = aEditor;
|
|
mRangeList = do_QueryInterface(aTextRangeList);
|
|
mFixed = 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;
|
|
mEditor->GetSelectionController(getter_AddRefs(selCon));
|
|
NS_ENSURE_TRUE(selCon, 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;
|
|
mEditor->GetSelectionController(getter_AddRefs(selCon));
|
|
NS_ENSURE_TRUE(selCon, 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, bool *aDidMerge)
|
|
{
|
|
NS_ASSERTION(aDidMerge, "illegal vaule- null ptr- aDidMerge");
|
|
NS_ASSERTION(aTransaction, "illegal vaule- null ptr- aTransaction");
|
|
NS_ENSURE_TRUE(aDidMerge && aTransaction, 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 = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// if aTransaction is another IMETextTxn then absorb it
|
|
//
|
|
IMETextTxn* otherTxn = nullptr;
|
|
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 = true;
|
|
#ifdef DEBUG_IMETXN
|
|
printf("IMETextTxn assimilated IMETextTxn:%p\n", aTransaction);
|
|
#endif
|
|
NS_RELEASE(otherTxn);
|
|
return NS_OK;
|
|
}
|
|
|
|
*aDidMerge = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::MarkFixed(void)
|
|
{
|
|
mFixed = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP IMETextTxn::GetTxnDescription(nsAString& aString)
|
|
{
|
|
aString.AssignLiteral("IMETextTxn: ");
|
|
aString += mStringToInsert;
|
|
return NS_OK;
|
|
}
|
|
|
|
/* ============ 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");
|
|
NS_ENSURE_TRUE(aTextRangeList, 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;
|
|
uint16_t i;
|
|
|
|
#ifdef DEBUG_IMETXN
|
|
uint16_t 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;
|
|
mEditor->GetSelectionController(getter_AddRefs(selCon));
|
|
NS_ENSURE_TRUE(selCon, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
uint16_t textRangeListLength,selectionStart,selectionEnd,
|
|
textRangeType;
|
|
|
|
textRangeListLength = mRangeList->GetLength();
|
|
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(int8_t 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
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIPrivateTextRange> textRange;
|
|
bool setCaret=false;
|
|
for(i=0;i<textRangeListLength;i++)
|
|
{
|
|
textRange = mRangeList->Item(i);
|
|
NS_ASSERTION(textRange, "cannot get item");
|
|
if(!textRange)
|
|
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)
|
|
{
|
|
NS_ASSERTION(selectionStart == selectionEnd,
|
|
"nsEditor doesn't support wide caret");
|
|
// Set the caret....
|
|
result = selection->Collapse(mElement,
|
|
mOffset+selectionStart);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot Collapse");
|
|
if(NS_SUCCEEDED(result))
|
|
setCaret = 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<nsIContent> content = do_QueryInterface(mElement);
|
|
if (!content) {
|
|
break;
|
|
}
|
|
|
|
nsRefPtr<nsRange> newRange = new nsRange(content);
|
|
result = newRange->SetStart(content, mOffset+selectionStart);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot SetStart");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
result = newRange->SetEnd(mElement,mOffset+selectionEnd);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot SetEnd");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
result = imeSel->AddRange(newRange);
|
|
NS_ASSERTION(NS_SUCCEEDED(result), "Cannot AddRange");
|
|
if(NS_FAILED(result))
|
|
break;
|
|
|
|
nsCOMPtr<nsISelectionPrivate> imeSelPriv(
|
|
do_QueryInterface(imeSel));
|
|
if (imeSelPriv) {
|
|
nsTextRangeStyle textRangeStyle;
|
|
result = textRange->GetRangeStyle(&textRangeStyle);
|
|
NS_ASSERTION(NS_SUCCEEDED(result),
|
|
"nsIPrivateTextRange::GetRangeStyle failed");
|
|
if (NS_FAILED(result))
|
|
break;
|
|
result = imeSelPriv->SetTextRangeStyle(newRange, textRangeStyle);
|
|
NS_ASSERTION(NS_SUCCEEDED(result),
|
|
"nsISelectionPrivate::SetTextRangeStyle failed");
|
|
if (NS_FAILED(result))
|
|
break;
|
|
} else {
|
|
NS_WARNING("IME selection doesn't have nsISelectionPrivate");
|
|
}
|
|
} // 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;
|
|
}
|
|
|