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gecko-dev/extensions/xmlterm/base/mozXMLTerminal.cpp

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/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "MPL"); you may not use this file
* except in compliance with the MPL. You may obtain a copy of
* the MPL at http://www.mozilla.org/MPL/
*
* Software distributed under the MPL is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the MPL for the specific language governing
* rights and limitations under the MPL.
*
* The Original Code is XMLterm.
*
* The Initial Developer of the Original Code is Ramalingam Saravanan.
* Portions created by Ramalingam Saravanan <svn@xmlterm.org> are
* Copyright (C) 1999 Ramalingam Saravanan. All Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*/
// mozXMLTerminal.cpp: implementation of mozIXMLTerminal interface
// to manage all XMLTerm operations.
// Creates a new mozXMLTermSession object to manage session input/output.
// Creates a mozLineTermAux object to access LineTerm operations.
// Creates key/text/mouse/drag listener objects to handle user events.
#include "nscore.h"
#include "nspr.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsIDocument.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDocumentViewer.h"
#include "nsIObserver.h"
#include "nsISelectionController.h"
#include "nsIPresContext.h"
#include "nsICaret.h"
#include "nsRect.h"
#include "nsIURI.h"
#include "nsIDOMEventReceiver.h"
#include "nsIDOMEventListener.h"
#include "nsIServiceManager.h"
#include "nsISupportsPrimitives.h"
#include "nsWidgetsCID.h"
#include "nsIClipboard.h"
#include "nsITransferable.h"
#include "nsFont.h"
#include "nsIFontMetrics.h"
#include "nsILookAndFeel.h"
#include "mozXMLT.h"
#include "mozXMLTermUtils.h"
#include "mozXMLTerminal.h"
#include "nsIWebNavigation.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIWebProgress.h"
////////////////////////////////////////////////////////////////////////
static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
static NS_DEFINE_CID(kCTransferableCID, NS_TRANSFERABLE_CID);
static NS_DEFINE_CID(kLookAndFeelCID, NS_LOOKANDFEEL_CID);
/////////////////////////////////////////////////////////////////////////
// mozXMLTerminal implementation
/////////////////////////////////////////////////////////////////////////
NS_IMPL_THREADSAFE_ISUPPORTS4(mozXMLTerminal,
mozIXMLTerminal,
nsIWebProgressListener,
nsIObserver,
nsISupportsWeakReference);
mozXMLTerminal::mozXMLTerminal() :
mInitialized(PR_FALSE),
mCookie(nsAutoString()),
mCommand(nsAutoString()),
mPromptExpr(nsAutoString()),
mInitInput(nsAutoString()),
mXMLTermShell(nsnull),
mDocShell(nsnull),
mPresShell(nsnull),
mDOMDocument(nsnull),
mXMLTermSession(nsnull),
mLineTermAux(nsnull),
mNeedsResizing(PR_FALSE),
mKeyListener(nsnull),
mTextListener(nsnull),
mMouseListener(nsnull),
mDragListener(nsnull)
{
NS_INIT_REFCNT();
}
mozXMLTerminal::~mozXMLTerminal()
{
Finalize();
}
NS_IMETHODIMP mozXMLTerminal::GetCurrentEntryNumber(PRInt32 *aNumber)
{
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
return mXMLTermSession->GetCurrentEntryNumber(aNumber);
}
NS_IMETHODIMP mozXMLTerminal::GetHistory(PRInt32 *aHistory)
{
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
return mXMLTermSession->GetHistory(aHistory);
}
NS_IMETHODIMP mozXMLTerminal::SetHistory(PRInt32 aHistory)
{
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
return mXMLTermSession->SetHistory(aHistory);
}
NS_IMETHODIMP mozXMLTerminal::GetPrompt(PRUnichar **aPrompt)
{
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
return mXMLTermSession->GetPrompt(aPrompt);
}
NS_IMETHODIMP mozXMLTerminal::SetPrompt(const PRUnichar* aPrompt)
{
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
return mXMLTermSession->SetPrompt(aPrompt);
}
NS_IMETHODIMP mozXMLTerminal::GetKeyIgnore(PRBool* aIgnore)
{
if (!mKeyListener)
return NS_ERROR_FAILURE;
nsCOMPtr<mozIXMLTermSuspend> suspend= do_QueryInterface(mKeyListener);
if (!suspend)
return NS_ERROR_FAILURE;
return suspend->GetSuspend(aIgnore);
}
NS_IMETHODIMP mozXMLTerminal::SetKeyIgnore(const PRBool aIgnore)
{
if (!mKeyListener)
return NS_ERROR_FAILURE;
nsCOMPtr<mozIXMLTermSuspend> suspend= do_QueryInterface(mKeyListener);
if (!suspend)
return NS_ERROR_FAILURE;
return suspend->SetSuspend(aIgnore);
}
// Initialize by starting load of Init page for XMLTerm
NS_IMETHODIMP mozXMLTerminal::Init(nsIDocShell* aDocShell,
mozIXMLTermShell* aXMLTermShell,
const PRUnichar* aURL,
const PRUnichar* args)
{
XMLT_LOG(mozXMLTerminal::Init,20,("\n"));
if (!aDocShell)
return NS_ERROR_NULL_POINTER;
if (mInitialized)
return NS_ERROR_ALREADY_INITIALIZED;
// Initialization flag
mInitialized = PR_TRUE;
// Containing docshell
mDocShell = getter_AddRefs(NS_GetWeakReference(aDocShell)); // weak ref
mXMLTermShell = aXMLTermShell; // containing xmlterm shell; no addref
nsresult result = NS_OK;
// NOTE: Need to parse args string!!!
mCommand.SetLength(0);
mPromptExpr.SetLength(0);
mInitInput = args;
if ((aURL != nsnull) && (*aURL != 0)) {
// Load URL and activate XMLTerm after loading
XMLT_LOG(mozXMLTerminal::Init,22,("setting DocLoaderObs\n"));
// About to create owning reference to this
nsCOMPtr<nsIWebProgress> progress(do_GetInterface(aDocShell, &result));
if (NS_FAILED(result)) return result;
result = progress->AddProgressListener((nsIWebProgressListener*)this,
nsIWebProgress::NOTIFY_STATE_REQUEST);
if (NS_FAILED(result))
return NS_ERROR_FAILURE;
XMLT_LOG(mozXMLTerminal::Init,22,("done setting DocLoaderObs\n"));
// Load initial XMLterm background document
nsCAutoString urlCString;
urlCString.AssignWithConversion(aURL);
nsCOMPtr<nsIURI> uri;
result = uri->SetSpec(urlCString);
if (NS_FAILED(result))
return NS_ERROR_FAILURE;
result = aDocShell->LoadURI(uri, nsnull, nsIWebNavigation::LOAD_FLAGS_NONE, PR_TRUE);
if (NS_FAILED(result))
return NS_ERROR_FAILURE;
} else {
// Document already loaded; activate XMLTerm
result = Activate();
if (NS_FAILED(result))
return NS_ERROR_FAILURE;
}
XMLT_LOG(mozXMLTerminal::Init,21,("exiting\n"));
return result;
}
// De-initialize XMLTerminal
NS_IMETHODIMP mozXMLTerminal::Finalize(void)
{
if (!mInitialized)
return NS_OK;
XMLT_LOG(mozXMLTerminal::Finalize,20,("\n"));
mInitialized = PR_FALSE;
if (mXMLTermSession) {
// Finalize XMLTermSession object and delete it (it is not ref. counted)
mXMLTermSession->Finalize();
delete mXMLTermSession;
mXMLTermSession = nsnull;
}
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryReferent(mDOMDocument);
if (domDoc) {
// Release any event listeners for the document
nsCOMPtr<nsIDOMEventReceiver> eventReceiver;
nsresult result = domDoc->QueryInterface(NS_GET_IID(nsIDOMEventReceiver), getter_AddRefs(eventReceiver));
if (NS_SUCCEEDED(result) && eventReceiver) {
if (mKeyListener) {
eventReceiver->RemoveEventListenerByIID(mKeyListener,
NS_GET_IID(nsIDOMKeyListener));
mKeyListener = nsnull;
}
if (mTextListener) {
eventReceiver->RemoveEventListenerByIID(mTextListener,
NS_GET_IID(nsIDOMTextListener));
mTextListener = nsnull;
}
if (mMouseListener) {
eventReceiver->RemoveEventListenerByIID(mMouseListener,
NS_GET_IID(nsIDOMMouseListener));
mMouseListener = nsnull;
}
if (mDragListener) {
eventReceiver->RemoveEventListenerByIID(mDragListener,
NS_GET_IID(nsIDOMDragListener));
mDragListener = nsnull;
}
}
}
mDOMDocument = nsnull;
if (mLineTermAux) {
// Finalize and release reference to LineTerm object owned by us
mLineTermAux->CloseAux();
mLineTermAux = nsnull;
}
mDocShell = nsnull;
mPresShell = nsnull;
mXMLTermShell = nsnull;
XMLT_LOG(mozXMLTerminal::Finalize,22,("END\n"));
return NS_OK;
}
/** Activates XMLterm and instantiates LineTerm;
* called at the the end of Init page loading.
*/
NS_IMETHODIMP mozXMLTerminal::Activate(void)
{
nsresult result = NS_OK;
#if 0
// TEMPORARY: Testing mozIXMLTermStream
nsAutoString streamData( "<HTML><HEAD><TITLE>Stream Title</TITLE>"
"<SCRIPT language='JavaScript'>"
"function clik(){ dump('click\\n');return(false);}"
"</SCRIPT></HEAD>"
"<BODY><B>Stream Body "
"<SPAN STYLE='color: blue' onClick='return clik();'>Clik</SPAN></B><BR>"
"<TABLE WIDTH=720><TR><TD WIDTH=700 BGCOLOR=maroon>&nbsp;</TABLE>"
"<BR>ABCD<BR>EFGH<BR>JKLM<BR>"
"</BODY></HTML>" );
nsCOMPtr<mozIXMLTermStream> stream;
result = NS_NewXMLTermStream(getter_AddRefs(stream));
if (NS_FAILED(result)) {
XMLT_ERROR("mozXMLTerminal::Activate: Failed to create stream\n");
return result;
}
nsCOMPtr<nsIDocShell> docShell = do_QueryReferent(mDocShell);
if (!docShell)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMWindowInternal> outerDOMWindow;
result = mozXMLTermUtils::ConvertDocShellToDOMWindow(docShell,
getter_AddRefs(outerDOMWindow));
if (NS_FAILED(result) || !outerDOMWindow) {
XMLT_ERROR("mozXMLTerminal::Activate: Failed to convert docshell\n");
return NS_ERROR_FAILURE;
}
result = stream->Open(outerDOMWindow, "iframet", "chrome://dummy",
"text/html", 800);
if (NS_FAILED(result)) {
XMLT_ERROR("mozXMLTerminal::Activate: Failed to open stream\n");
return result;
}
result = stream->Write(streamData.get());
if (NS_FAILED(result)) {
XMLT_ERROR("mozXMLTerminal::Activate: Failed to write to stream\n");
return result;
}
result = stream->Close();
if (NS_FAILED(result)) {
XMLT_ERROR("mozXMLTerminal::Activate: Failed to close stream\n");
return result;
}
#endif
XMLT_LOG(mozXMLTerminal::Activate,20,("\n"));
if (!mInitialized)
return NS_ERROR_NOT_INITIALIZED;
PR_ASSERT(mDocShell != nsnull);
if ((mDOMDocument != nsnull) || (mPresShell != nsnull))
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDocShell> docShell = do_QueryReferent(mDocShell);
if (!docShell)
return NS_ERROR_FAILURE;
// Get reference to presentation shell
nsCOMPtr<nsIPresContext> presContext;
result = docShell->GetPresContext(getter_AddRefs(presContext));
if (NS_FAILED(result) || !presContext)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIPresShell> presShell;
result = docShell->GetPresShell(getter_AddRefs(presShell));
if (NS_FAILED(result) || !presShell)
return NS_ERROR_FAILURE;
// Get reference to DOMDocument
nsCOMPtr<nsIDocument> document;
result = presShell->GetDocument(getter_AddRefs(document));
if (NS_FAILED(result) || !document)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(document);
if (!domDoc)
return NS_ERROR_FAILURE;
// Save weak references to presentation shell and DOMDocument
mPresShell = getter_AddRefs(NS_GetWeakReference(presShell)); // weak ref
mDOMDocument = getter_AddRefs(NS_GetWeakReference(domDoc)); // weak ref
// Show caret
ShowCaret();
// Determine current screen dimensions
PRInt32 nRows, nCols, xPixels, yPixels;
result = ScreenSize(&nRows, &nCols, &xPixels, &yPixels);
if (NS_FAILED(result))
return result;
// The above call does not return the correct screen dimensions.
// (because rendering is still in progress?)
// As a workaround, explicitly set screen dimensions
nRows = 24;
nCols = 80;
xPixels = 0;
yPixels = 0;
// Instantiate and initialize XMLTermSession object
mXMLTermSession = new mozXMLTermSession();
if (!mXMLTermSession) {
return NS_ERROR_OUT_OF_MEMORY;
}
result = mXMLTermSession->Init(this, presShell, domDoc, nRows, nCols);
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to initialize XMLTermSession\n");
return NS_ERROR_FAILURE;
}
// Instantiate LineTerm
XMLT_LOG(mozXMLTerminal::Activate,22,
("instantiating lineterm, nRows=%d, nCols=%d\n", nRows, nCols));
mLineTermAux = do_CreateInstance(MOZLINETERM_CONTRACTID, &result);
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to instantiate LineTermAux\n");
return result;
}
// Open LineTerm to execute command
// Non-owning reference to this; delete LineTerm before deleting self
PRInt32 options = 0;
XMLT_LOG(mozXMLTerminal::Activate,22,("Opening LineTerm\n"));
nsCOMPtr<nsIObserver> anObserver = this;
#ifdef NO_CALLBACK
anObserver = nsnull;
#endif
nsAutoString cookie;
result = mLineTermAux->OpenAux(mCommand.get(),
mInitInput.get(),
mPromptExpr.get(),
options, LTERM_DETERMINE_PROCESS,
nRows, nCols, xPixels, yPixels,
domDoc, anObserver, cookie);
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to open LineTermAux\n");
return result;
}
XMLT_LOG(mozXMLTerminal::Activate,22,("Opened LineTerm\n"));
// Save cookie
mCookie = cookie;
// Get the DOM event receiver for document
nsCOMPtr<nsIDOMEventReceiver> eventReceiver;
result = domDoc->QueryInterface(NS_GET_IID(nsIDOMEventReceiver),
getter_AddRefs(eventReceiver));
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to get DOM receiver\n");
return result;
}
// Create a key listener
result = NS_NewXMLTermKeyListener(getter_AddRefs(mKeyListener), this);
if (NS_OK != result) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to get key listener\n");
return result;
}
// Register the key listener with the DOM event receiver
result = eventReceiver->AddEventListenerByIID(mKeyListener,
NS_GET_IID(nsIDOMKeyListener));
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to register key listener\n");
return result;
}
// Create a text listener
result = NS_NewXMLTermTextListener(getter_AddRefs(mTextListener), this);
if (NS_OK != result) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to get text listener\n");
return result;
}
// Register the text listener with the DOM event receiver
result = eventReceiver->AddEventListenerByIID(mTextListener,
NS_GET_IID(nsIDOMTextListener));
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to register text listener\n");
return result;
}
// Create a mouse listener
result = NS_NewXMLTermMouseListener(getter_AddRefs(mMouseListener), this);
if (NS_OK != result) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to get mouse listener\n");
return result;
}
// Register the mouse listener with the DOM event receiver
result = eventReceiver->AddEventListenerByIID(mMouseListener,
NS_GET_IID(nsIDOMMouseListener));
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to register mouse listener\n");
return result;
}
// Create a drag listener
result = NS_NewXMLTermDragListener(getter_AddRefs(mDragListener), this);
if (NS_OK != result) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to get drag listener\n");
return result;
}
// Register the drag listener with the DOM event receiver
result = eventReceiver->AddEventListenerByIID(mDragListener,
NS_GET_IID(nsIDOMDragListener));
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Activate: Warning - Failed to register drag listener\n");
return result;
}
return NS_OK;
}
/** Returns current screen size in rows/cols and in pixels
* @param (output) rows
* @param (output) cols
* @param (output) xPixels
* @param (output) yPixels
*/
NS_IMETHODIMP mozXMLTerminal::ScreenSize(PRInt32* rows, PRInt32* cols,
PRInt32* xPixels, PRInt32* yPixels)
{
nsresult result;
XMLT_LOG(mozXMLTerminal::ScreenSize,70,("\n"));
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShell);
if (!presShell)
return NS_ERROR_FAILURE;
// Get presentation context
nsCOMPtr<nsIPresContext> presContext;
result = presShell->GetPresContext( getter_AddRefs(presContext) );
if (NS_FAILED(result))
return result;
// Get the default fixed pitch font
const nsFont* defaultFixedFont;
result = presContext->GetDefaultFont(kPresContext_DefaultFixedFont_ID, &defaultFixedFont);
if (NS_FAILED(result))
return result;
// Get metrics for fixed font
nsCOMPtr<nsIFontMetrics> fontMetrics;
result = presContext->GetMetricsFor(*defaultFixedFont,
getter_AddRefs(fontMetrics));
if (NS_FAILED(result) || !fontMetrics)
return result;
// Get font height (includes leading?)
nscoord fontHeight, fontWidth;
result = fontMetrics->GetHeight(fontHeight);
result = fontMetrics->GetMaxAdvance(fontWidth);
// Determine docshell size in twips
nsRect shellArea;
result = presContext->GetVisibleArea(shellArea);
if (NS_FAILED(result))
return result;
// Determine twips to pixels conversion factor
float pixelScale;
presContext->GetTwipsToPixels(&pixelScale);
// Convert dimensions to pixels
float xdel, ydel;
xdel = pixelScale * fontWidth;
ydel = pixelScale * fontHeight + 2;
*xPixels = (int) (pixelScale * shellArea.width);
*yPixels = (int) (pixelScale * shellArea.height);
// Determine number of rows/columns
*rows = (int) ((*yPixels-16) / ydel);
*cols = (int) ((*xPixels-20) / xdel);
if (*rows < 1) *rows = 1;
if (*cols < 1) *cols = 1;
XMLT_LOG(mozXMLTerminal::ScreenSize,72,
("rows=%d, cols=%d, xPixels=%d, yPixels=%d\n",
*rows, *cols, *xPixels, *yPixels));
return NS_OK;
}
// Transmit string to LineTerm (use saved cookie)
NS_IMETHODIMP mozXMLTerminal::SendTextAux(const PRUnichar* aString)
{
return SendText(aString, mCookie.get());
}
// Transmit string to LineTerm
NS_IMETHODIMP mozXMLTerminal::SendText(const PRUnichar* aString,
const PRUnichar* aCookie)
{
nsresult result;
if (!mLineTermAux)
return NS_ERROR_FAILURE;
nsAutoString sendStr(aString);
// Preprocess string and check if it is to be consumed
PRBool consumed, checkSize;
result = mXMLTermSession->Preprocess(sendStr, consumed, checkSize);
PRBool screenMode;
GetScreenMode(&screenMode);
if (!screenMode && (checkSize || mNeedsResizing)) {
// Resize terminal, if need be
mXMLTermSession->Resize(mLineTermAux);
mNeedsResizing = PR_FALSE;
}
if (!consumed) {
result = mLineTermAux->Write(sendStr.get(), aCookie);
if (NS_FAILED(result)) {
// Abort XMLterm session
nsAutoString abortCode;
abortCode.Assign(NS_LITERAL_STRING("SendText"));
mXMLTermSession->Abort(mLineTermAux, abortCode);
return NS_ERROR_FAILURE;
}
}
return NS_OK;
}
/** Shows the caret and make it editable.
*/
NS_IMETHODIMP mozXMLTerminal::ShowCaret(void)
{
// In principle, this method needs to be called only once;
// in practice, certain operations seem to hide the caret
// especially when one starts mucking around with the display:
// style property.
// Under those circumstances, call this method to re-display the caret.
XMLT_LOG(mozXMLTerminal::ShowCaret,70,("\n"));
if (!mPresShell)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShell);
if (!presShell)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISelectionController> selCon = do_QueryInterface(presShell);
if (!selCon) {
XMLT_WARNING("mozXMLTerminal::ShowCaret: Warning - Failed to get SelectionController\n");
return NS_ERROR_FAILURE;
}
PRInt32 pixelWidth;
nsresult result;
nsCOMPtr<nsILookAndFeel> look(do_GetService(kLookAndFeelCID, &result));
if (NS_SUCCEEDED(result) && look) {
look->GetMetric(nsILookAndFeel::eMetric_SingleLineCaretWidth, pixelWidth);
selCon->SetCaretWidth(pixelWidth);
}
selCon->SetCaretEnabled(PR_TRUE);
selCon->SetCaretReadOnly(PR_FALSE);
nsCOMPtr<nsICaret> caret;
if (NS_SUCCEEDED(presShell->GetCaret(getter_AddRefs(caret))) && caret) {
caret->SetCaretVisible(PR_TRUE);
caret->SetCaretReadOnly(PR_FALSE);
nsCOMPtr<nsISelection> sel;
if (NS_SUCCEEDED(selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(sel))) && sel) {
caret->SetCaretDOMSelection(sel);
}
} else {
XMLT_WARNING("mozXMLTerminal::ShowCaret: Warning - Failed to get caret\n");
}
return NS_OK;
}
// Paste data from clipboard to terminal
NS_IMETHODIMP mozXMLTerminal::Paste()
{
nsresult result;
nsAutoString pasteString;
XMLT_LOG(mozXMLTerminal::Paste,20,("\n"));
// Get Clipboard service
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &result));
if ( NS_FAILED(result) )
return result;
// Generic transferable for getting clipboard data
nsCOMPtr<nsITransferable> trans;
result = nsComponentManager::CreateInstance(kCTransferableCID, nsnull,
NS_GET_IID(nsITransferable),
(void**) getter_AddRefs(trans));
if (NS_FAILED(result) || !trans)
return NS_ERROR_FAILURE;
// DataFlavors to get out of transferable
// trans->AddDataFlavor(kHTMLMime); // Cannot handle HTML yet
trans->AddDataFlavor(kUnicodeMime);
// Get data from clipboard
result = clipboard->GetData(trans, nsIClipboard::kSelectionClipboard);
if (NS_FAILED(result))
return result;
char* bestFlavor = nsnull;
nsCOMPtr<nsISupports> genericDataObj;
PRUint32 objLen = 0;
result = trans->GetAnyTransferData(&bestFlavor,
getter_AddRefs(genericDataObj), &objLen);
if (NS_FAILED(result))
return result;
nsAutoString flavor;
flavor.AssignWithConversion(bestFlavor);
char* temCStr = ToNewCString(flavor);
XMLT_LOG(mozXMLTerminal::Paste,20,("flavour=%s\n", temCStr));
nsMemory::Free(temCStr);
if (flavor.EqualsWithConversion(kHTMLMime) || flavor.EqualsWithConversion(kUnicodeMime)) {
nsCOMPtr<nsISupportsWString> textDataObj ( do_QueryInterface(genericDataObj) );
if (textDataObj && objLen > 0) {
PRUnichar* text = nsnull;
textDataObj->ToString ( &text );
pasteString.Assign( text, objLen / 2 );
result = SendTextAux(pasteString.get());
}
}
nsMemory::Free(bestFlavor);
return NS_OK;
}
// Poll for readable data from LineTerm
NS_IMETHODIMP mozXMLTerminal::Poll(void)
{
if (!mLineTermAux)
return NS_ERROR_NOT_INITIALIZED;
XMLT_LOG(mozXMLTerminal::Poll,20,("\n"));
nsresult result;
PRBool processedData;
result = mXMLTermSession->ReadAll(mLineTermAux, processedData);
if (NS_FAILED(result)) {
XMLT_WARNING("mozXMLTerminal::Poll: Warning - Error return 0x%x from ReadAll\n", result);
return result;
}
return NS_OK;
}
// Handle callback from LineTerm when new input/output needs to be displayed
NS_IMETHODIMP mozXMLTerminal::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *someData)
{
nsCOMPtr<mozILineTermAux> lineTermAux = do_QueryInterface(aSubject);
PR_ASSERT(lineTermAux != nsnull);
PR_ASSERT(lineTermAux.get() == mLineTermAux.get());
return Poll();
}
// Returns document associated with XMLTerminal
NS_IMETHODIMP mozXMLTerminal::GetDocument(nsIDOMDocument** aDoc)
{
if (!aDoc)
return NS_ERROR_NULL_POINTER;
*aDoc = nsnull;
NS_PRECONDITION(mDOMDocument, "bad state, null mDOMDocument");
if (!mDOMDocument)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryReferent(mDOMDocument);
if (!domDoc)
return NS_ERROR_FAILURE;
return domDoc->QueryInterface(NS_GET_IID(nsIDOMDocument),
(void **)aDoc);
}
// Returns doc shell associated with XMLTerm
NS_IMETHODIMP mozXMLTerminal::GetDocShell(nsIDocShell** aDocShell)
{
if (!aDocShell)
return NS_ERROR_NULL_POINTER;
*aDocShell = nsnull;
NS_PRECONDITION(mDocShell, "bad state, null mDocShell");
if (!mDocShell)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIDocShell> docShell = do_QueryReferent(mDocShell);
if (!docShell) {
XMLT_ERROR("mozXMLTerminal::GetDocShell: Error - Invalid weak reference\n");
return NS_ERROR_FAILURE;
}
return docShell->QueryInterface(NS_GET_IID(nsIDocShell),
(void **)aDocShell);
}
// Returns presentation shell associated with XMLTerm
NS_IMETHODIMP mozXMLTerminal::GetPresShell(nsIPresShell** aPresShell)
{
if (!aPresShell)
return NS_ERROR_NULL_POINTER;
*aPresShell = nsnull;
NS_PRECONDITION(mPresShell, "bad state, null mPresShell");
if (!mPresShell)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShell);
if (!presShell) {
XMLT_ERROR("mozXMLTerminal::GetPresShell: Error - Invalid weak reference\n");
return NS_ERROR_FAILURE;
}
return presShell->QueryInterface(NS_GET_IID(nsIPresShell),
(void **)aPresShell);
}
// Returns DOMDocument associated with XMLTerm
NS_IMETHODIMP mozXMLTerminal::GetDOMDocument(nsIDOMDocument** aDOMDocument)
{
if (!aDOMDocument)
return NS_ERROR_NULL_POINTER;
*aDOMDocument = nsnull;
NS_PRECONDITION(mDOMDocument, "bad state, null mDOMDocument");
if (!mDOMDocument)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryReferent(mDOMDocument);
if (!domDoc) {
XMLT_ERROR("mozXMLTerminal::GetDOMDocument: Error - Invalid weak reference\n");
return NS_ERROR_FAILURE;
}
return domDoc->QueryInterface(NS_GET_IID(nsIDOMDocument),
(void **)aDOMDocument);
}
// Returns SelectionController associated with XMLTerm
NS_IMETHODIMP mozXMLTerminal::GetSelectionController(nsISelectionController** aSelectionController)
{
if (!aSelectionController)
return NS_ERROR_NULL_POINTER;
*aSelectionController = nsnull;
NS_PRECONDITION(mPresShell, "bad state, null mPresShell");
if (!mPresShell)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShell);
if (!presShell) {
XMLT_ERROR("mozXMLTerminal::GetSelectionControlle: Error - Invalid weak reference\n");
return NS_ERROR_FAILURE;
}
return presShell->QueryInterface(NS_GET_IID(nsISelectionController),
(void **)aSelectionController);
}
/** Gets flag denoting whether terminal is in full screen mode
* @param aFlag (output) screen mode flag
*/
NS_IMETHODIMP mozXMLTerminal::GetScreenMode(PRBool* aFlag)
{
return mXMLTermSession->GetScreenMode(aFlag);
}
/** Checks if supplied cookie is valid for XMLTerm
* @param aCookie supplied cookie string
* @param _retval PR_TRUE if supplied cookie matches XMLTerm cookie
*/
NS_IMETHODIMP mozXMLTerminal::MatchesCookie(const PRUnichar* aCookie,
PRBool *_retval)
{
XMLT_LOG(mozXMLTerminal::MatchesCookie,20,("\n"));
if (!_retval)
return NS_ERROR_NULL_POINTER;
// Check if supplied cookie matches XMLTerm cookie
*_retval = mCookie.Equals(aCookie);
if (!(*_retval)) {
XMLT_ERROR("mozXMLTerminal::MatchesCookie: Error - Cookie mismatch\n");
return NS_ERROR_FAILURE;
}
return NS_OK;
}
/** Resizes XMLterm to match a resized window.
*/
NS_IMETHODIMP mozXMLTerminal::Resize(void)
{
nsresult result;
XMLT_LOG(mozXMLTerminal::Resize,20,("\n"));
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
PRBool screenMode;
GetScreenMode(&screenMode);
if (screenMode) {
// Delay resizing until next input processing
mNeedsResizing = PR_TRUE;
} else {
// Resize session
result = mXMLTermSession->Resize(mLineTermAux);
if (NS_FAILED(result))
return result;
}
return NS_OK;
}
/** Exports HTML to file, with META REFRESH, if refreshSeconds is non-zero.
* Nothing is done if display has not changed since last export, unless
* forceExport is true. Returns true if export actually takes place.
* If filename is a null string, HTML is written to STDERR.
*/
NS_IMETHODIMP mozXMLTerminal::ExportHTML(const PRUnichar* aFilename,
PRInt32 permissions,
const PRUnichar* style,
PRUint32 refreshSeconds,
PRBool forceExport,
PRBool* exported)
{
if (!mXMLTermSession)
return NS_ERROR_FAILURE;
return mXMLTermSession->ExportHTML( aFilename, permissions, style,
refreshSeconds, forceExport,
exported);
}
// nsIWebProgressListener methods
NS_IMETHODIMP
mozXMLTerminal::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest *aRequest,
PRUint32 progressStateFlags,
nsresult aStatus) {
if (progressStateFlags & nsIWebProgressListener::STATE_IS_REQUEST)
if (progressStateFlags & nsIWebProgressListener::STATE_START) {
XMLT_LOG(mozXMLTerminal::OnStateChange,20,("\n"));
// Activate XMLTerm
Activate();
}
return NS_OK;
}
NS_IMETHODIMP
mozXMLTerminal::OnProgressChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRInt32 aCurSelfProgress,
PRInt32 aMaxSelfProgress,
PRInt32 aCurTotalProgress,
PRInt32 aMaxTotalProgress) {
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
mozXMLTerminal::OnLocationChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsIURI *location) {
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
mozXMLTerminal::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const PRUnichar* aMessage) {
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
mozXMLTerminal::OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRUint32 state) {
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
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