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gecko-dev/cmd/winfe/cxabstra.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "stdafx.h"
#include "cxabstra.h"
#include "xp_thrmo.h"
#include "timer.h" // for nettimer since can't call base class
#include "libi18n.h" // International function
#include "template.h"
#include "dialog.h"
#include "mainfrm.h"
#ifdef MOZ_MAIL_NEWS
#include "fldrfrm.h"
#include "thrdfrm.h"
#include "msgfrm.h"
#include "msgcom.h"
#include "wfemsg.h"
#endif /* MOZ_MAIL_NEWS */
#include "winclose.h"
#include "libevent.h"
#include "np.h"
#include "intl_csi.h"
#include "mkhelp.h" // for HelpInfoStruct
#include "feimage.h"
#include "cxicon.h"
#ifdef EDITOR
#include "edt.h"
#endif /* EDITOR */
#include "mozilla.h"
#include "timing.h"
CAbstractCX::CAbstractCX() {
// Purpose: Constructor for the abstract base class.
// Arguments: void
// Returns: none
// Comments: Responsible for creating the XP context.
m_pLastStatus = NULL;
// First set our context type.
// This is really irrelevant, just a reminder to those which derive from us.
m_cxType = Abstract;
// Create the XP context.
m_pXPCX = XP_NewContext();
m_pImageGroupContext = 0;
m_bImagesLoading = FALSE;
m_bImagesLooping = FALSE;
m_bImagesDelayed = FALSE;
m_bMochaImagesLoading = FALSE;
m_bMochaImagesLooping = FALSE;
m_bMochaImagesDelayed = FALSE;
m_bNetHelpWnd = FALSE;
// Set its type to an invalid default.
// Up to others to correctly set.
m_pXPCX->type = MWContextAny;
m_pXPCX->fontScalingPercentage = 1.0;
// Assign in the common front end functions.
m_pXPCX->funcs = new ContextFuncs;
#define MAKE_FE_FUNCS_PREFIX(funkage) CFE_##funkage
#define MAKE_FE_FUNCS_ASSIGN m_pXPCX->funcs->
#include "mk_cx_fn.h"
// Set the FE data to simply point to this class.
m_pXPCX->fe.cx = this;
// Initialize the global history of the object.
SHIST_InitSession(m_pXPCX);
// We haven't been told to attempt to interrupt the load.
// Nor have we decided to self destruct.
m_bIdleInterrupt = FALSE;
m_bIdleDestroy = FALSE;
// We have no client pull information.
m_pClientPullData = FALSE;
m_pClientPullTimeout = FALSE;
// Reset our stopwatch, in case it never gets initialized.
ResetStopwatch();
// We haven't been destroyed yet.
m_bDestroyed = FALSE;
// We have ncapi data yet.
m_pNcapiUrlData = NULL;
// We are initially allowing clicks.
GetContext()->waitingMode = FALSE;
// Add the context to the XP list.
XP_AddContextToList(GetContext());
// No levels of interruptedness.
m_iInterruptNest = 0;
}
int16 CAbstractCX::GetWinCsid()
{
return INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(m_pXPCX));
}
/*
* Mocha has removed all of its info from this context, it's
* safe to trash it now
*/
void CAbstractCX::MochaDestructionComplete()
{
// Now, attempt to interrupt. This allows us to clean up a context, even
// if the network library is blocking.
// Eventually, this will cause this context to delete itself.
Interrupt();
}
/*
* Mocha has removed all of its info from this context
*/
void mocha_done_callback(void * data)
{
((CAbstractCX *)data)->MochaDestructionComplete();
}
void CAbstractCX::DestroyContext() {
// Purpose: Before deleting a context, you must destroy it for proper cleanup.
// Arguments: void
// Returns: void
// Comments: Because the XP libraries perform calls on a context when it is going
// away, and those calls are virtual, we must first "destroy" a context,
// and then we are able to delete it properly.
if(m_bDestroyed == FALSE) {
// Only call in here once, please.
// We have to lock the application from exiting until we receive
// a series of callbacks and eventually remove the context
// from memory.
// This lock is removed in the destructor.
AfxOleLockApp();
// Have the document interrupt.
// We call again when we get the mocha complete callback, but that
// causes us to get deleted physically after the destroyed flag
// is set.
Interrupt();
#ifndef MOZ_NGLAYOUT
// Layout needs to cleanup.
LO_DiscardDocument(m_pXPCX);
#endif
// End the session history of the context.
SHIST_EndSession(m_pXPCX);
#ifdef MOZ_MAIL_NEWS
// Free any memory used for MIME objects
MimeDestroyContextData(m_pXPCX);
#endif /* MOZ_MAIL_NEWS */
// We are now destroyed, set a member to let us know.
m_bDestroyed = TRUE;
if(m_pImageGroupContext) {
IL_RemoveGroupObserver(m_pImageGroupContext, ImageGroupObserver, (void*)GetContext());
IL_DestroyGroupContext(m_pImageGroupContext);
m_pXPCX->img_cx = NULL;
}
if (m_pXPCX->color_space) {
IL_ReleaseColorSpace(m_pXPCX->color_space);
m_pXPCX->color_space = NULL;
}
// Remove ourselves from the XP context list.
// Must be done before call to mocha, or lists in
// unstable state.
XP_RemoveContextFromList(m_pXPCX);
#ifdef MOZ_NGLAYOUT
XP_ASSERT(0);
#else
// Have mocha perform cleanup and continue destruction in the
// callback
ET_RemoveWindowContext(m_pXPCX, mocha_done_callback, this);
#endif /* MOZ_NGLAYOUT */
}
}
/*-----------------------------------------------**
** Let a load complete before self destructing. **
**-----------------------------------------------*/
void CAbstractCX::NiceDestroyContext() {
m_bIdleDestroy = FALSE;
if(m_bDestroyed == FALSE && GetContext()) {
if(XP_IsContextBusy(GetContext())) {
// Try again later.
m_bIdleDestroy = TRUE;
FEU_RequestIdleProcessing(GetContext());
}
else {
// Time's up.
DestroyContext();
return;
}
}
}
// Routine to detect when we can exit.
void fe_finish_exit(void *pClosure)
{
BOOL bCanExit = TRUE;
static void *pExitTimer = NULL;
if(pClosure != NULL) {
// Called via timeout.
// Clear the timeout backpointer.
pExitTimer = NULL;
}
else {
// Called via destructor (anal).
// Make sure we haven't already set the timer.
if(pExitTimer != NULL) {
return;
}
}
if(AfxOleCanExitApp() == FALSE) {
// Outstanding com lock.
bCanExit = FALSE;
}
if(XP_ListCount(XP_GetGlobalContextList()) != 0) {
// Context is out there.
bCanExit = FALSE;
}
if(theApp.m_pMainWnd != NULL) {
if(bCanExit) {
TRACE("Posting WM_CLOSE to %p hidden frame to exit app.\n", theApp.m_pMainWnd);
theApp.m_pMainWnd->PostMessage(WM_CLOSE);
}
else {
// Have to retry in a little while.
pExitTimer = FE_SetTimeout(fe_finish_exit, (void *)-1, 1000);
ASSERT(pExitTimer != NULL);
}
}
}
CAbstractCX::~CAbstractCX() {
// Purpose: Destroy the context.
// Arguments: void
// Returns: none
// Comments: Perform any necessary cleanup also.
// Can remove lock set in DestroyContext.
// Window of instability gone.
AfxOleUnlockApp();
// Let those watching this context that it is no more (NCAPI).
CWindowChangeItem::Closing(GetContextID());
// If you get this ASSERTION, then you should call DestroyContext and
// NEVER delete the context.
ASSERT(m_bDestroyed == TRUE);
// Get rid of the last and default status.
if (m_pLastStatus) {
XP_FREE(m_pLastStatus);
m_pLastStatus = NULL;
}
if(m_pXPCX->defaultStatus != NULL) {
XP_FREE(m_pXPCX->defaultStatus);
m_pXPCX->defaultStatus = NULL;
}
// If we allocated a title for the context, get rid of it.
if(m_pXPCX->title != NULL) {
XP_FREE(m_pXPCX->title);
m_pXPCX->title = NULL;
}
// Get rid of its name.
if(m_pXPCX->name != NULL) {
XP_FREE(m_pXPCX->name);
m_pXPCX->name = NULL;
}
// Free the transparent pixel used by the Image Library.
if(m_pXPCX->transparent_pixel) {
XP_FREE(m_pXPCX->transparent_pixel);
m_pXPCX->transparent_pixel = NULL;
}
/* EA: Remove any help information associated with this context */
if (m_pXPCX && (m_pXPCX->pHelpInfo != NULL)) {
if (((HelpInfoStruct *) m_pXPCX->pHelpInfo)->topicURL != NULL) {
XP_FREE(((HelpInfoStruct *) m_pXPCX->pHelpInfo)->topicURL);
((HelpInfoStruct *) m_pXPCX->pHelpInfo)->topicURL = NULL;
}
XP_FREE(m_pXPCX->pHelpInfo);
m_pXPCX->pHelpInfo = NULL;
}
// Delete our function table in the XP context.
memset(m_pXPCX->funcs, 0, sizeof(*(m_pXPCX->funcs)));
delete m_pXPCX->funcs;
m_pXPCX->funcs = NULL;
// Delete our XP context.
XP_DeleteContext(m_pXPCX);
m_pXPCX = NULL;
// NOTE: Frames and Views should be taken care of by sub-classes
// There are three "hiding" contexts
#ifdef MOZ_MAIL_NEWS
#define HIDDENCXS 4
#else
#define HIDDENCXS 2
#endif /* MOZ_MAIL_NEWS */
// bookmarks window
// address book window
// biff / check mail context
// Misc. URL loader context which switch context, ie: NetHelp, etc.
// Check the number of items in the context list to see if we should exit.
if(XP_ListCount(XP_GetGlobalContextList()) == HIDDENCXS) {
// These are the stragglers that we need to see if visible,
// and if not, remove them at this time.
// All or none.
// Do in seperate for loops or list state is undefined.
CAbstractCX *pCXs[HIDDENCXS];
int iTraverse;
for(iTraverse = 0; iTraverse < HIDDENCXS; iTraverse++) {
pCXs[iTraverse] = ABSTRACTCX((MWContext *)XP_ListGetObjectNum(XP_GetGlobalContextList(), iTraverse + 1));
}
for(iTraverse = 0; iTraverse < HIDDENCXS; iTraverse++) {
if(pCXs[iTraverse]) {
pCXs[iTraverse]->DestroyContext();
}
}
// Because we've killed off the hidden contexts, clear pointers
// to them.
theApp.m_pSlaveCX = NULL;
theApp.m_pRDFCX = NULL;
// Start to detect when we can exit the application.
fe_finish_exit(NULL);
}
}
void CAbstractCX::SetContextName(const char *pName) {
// Set the context name.
if(GetContext()->name != NULL) {
XP_FREE(GetContext()->name);
}
if(pName != NULL) {
GetContext()->name = XP_STRDUP(pName);
}
else {
GetContext()->name = NULL;
}
}
void CAbstractCX::SetParentContext(MWContext *pParentContext) {
// Set the context's parent context.
GetContext()->grid_parent = pParentContext;
// Also set that this is a grid cell.
// Can't have a grid parent if not a true grid.
GetContext()->is_grid_cell = TRUE;
// Finally, update what is called the parent's list of children.
// Removal is taken care of automagically.
XP_UpdateParentContext(GetContext());
}
BOOL CAbstractCX::IsGridCell() const {
return(GetContext()->is_grid_cell);
}
BOOL CAbstractCX::IsGridParent() const {
BOOL bRetval = FALSE;
MWContext *pContext = GetContext();
if(pContext) {
bRetval = !XP_ListIsEmpty(pContext->grid_children);
}
return bRetval;
}
CWnd *CAbstractCX::GetDialogOwner() const {
// Purpose: Return the parent/owner of any dialogs for the context.
// Arguments: void
// Returns: CWnd * The parent as needed.
// Comments: Generic use function to more easily define the owner
// of any dialogs.
// As a default, we'll be returning the desktop window.
return(CWnd::GetDesktopWindow());
}
// This routine changes the context of the specified URL structure to be
// a browser context. Returns the new context if successful and NULL otherwise
MWContext *SwitchToBrowserContext(URL_Struct* pUrlStruct)
{
ASSERT(NET_IsSafeForNewContext(pUrlStruct));
// Use an existing browser window if we have one
CFrameWnd* pFrameWnd = FEU_GetLastActiveFrame(MWContextBrowser, FEU_FINDBROWSERONLY);
MWContext* pNewContext = NULL;
if (pFrameWnd) {
CFrameGlue *pGlue = CFrameGlue::GetFrameGlue(pFrameWnd);
CWinCX* pWinCX;
if (pGlue && ((pWinCX = pGlue->GetMainWinContext()) != NULL)) {
pNewContext = pWinCX->GetContext();
// Don't use this context if it's busy or doesn't want to be used.
if (ABSTRACTCX(pNewContext)->IsContextStoppable()
|| pNewContext->restricted_target)
pNewContext = NULL; // create a new context instead
else {
pWinCX->GetUrl( pUrlStruct, FO_CACHE_AND_PRESENT, TRUE );
// Make sure the window is visible
if(pFrameWnd->IsIconic())
pFrameWnd->ShowWindow(SW_RESTORE);
else {
#ifdef XP_WIN16
pFrameWnd->BringWindowToTop();
#else
pFrameWnd->SetForegroundWindow();
#endif
}
}
}
}
// If we couldn't find an existing browser window, then create a new one
if (!pNewContext) {
// Create a new browser window
pNewContext = CFE_CreateNewDocWindow(NULL, pUrlStruct);
}
return pNewContext;
}
int CAbstractCX::NormalGetUrl(const char *pUrl, const char *pReferrer, const char *pTarget, BOOL bForceNew) {
// Generic brain dead interface to GetUrl.
URL_Struct *pUrlStruct = NET_CreateURLStruct(pUrl, NET_DONT_RELOAD);
// Add the referrer field.
if(pReferrer != NULL) {
pUrlStruct->referer = XP_STRDUP(pReferrer);
}
// Add the target name.
if(pTarget != NULL) {
if (pTarget[0] == '_') {
pUrlStruct->window_target = XP_STRDUP("");
}
else {
pUrlStruct->window_target = XP_STRDUP(pTarget);
}
}
// Load it.
#ifdef EDITOR
// Use Edit present type to filter mime types we can't edit
return( GetUrl(pUrlStruct, EDT_IS_EDITOR(GetContext()) ? FO_CACHE_AND_EDIT : FO_CACHE_AND_PRESENT, TRUE, bForceNew));
#else
return(GetUrl(pUrlStruct, FO_CACHE_AND_PRESENT, TRUE, bForceNew));
#endif
}
int CAbstractCX::GetUrl(URL_Struct *pUrl, FO_Present_Types iFormatOut, BOOL bReallyLoad, BOOL bForceNew) {
// Purpose: Load a url into the context class.
// Arguments: pUrl The URL to load
// iFormatOut The format out of the load (helps determine the content type converter
// along with the mime type).
// bReallyLoading Is a switch to tell us not to actually request the URL.
// This helps and context changing URLs to bootstrap the loading UI.
// Returns: int As NET_GetURL
// Comments: Use this instead of NET_GetURL
// Determine URL type. -1 is out of range.
int iUrlType = -1;
if(pUrl && pUrl->address) {
iUrlType = NET_URL_Type(pUrl->address);
}
// Switch on URL type to see how we should handle.
int iRetval = MK_NO_ACTION;
switch(iUrlType) {
case NETHELP_TYPE_URL: {
MWContext *pNetHelpCX = FE_GetNetHelpContext();
if(pNetHelpCX) {
iRetval = NET_GetURL(pUrl, FO_PRESENT, pNetHelpCX, CFE_SimpleGetUrlExitRoutine);
}
break;
}
default: {
// See if this is the current page (named anchor), if so don't load.
// But don't do this if we're not really initiating the load ourselves.
// Also make sure that this is a present type, if not, don't check
// for this named anchor stuff.
// If this isn't acceptable behaviour, we really need to split what
// you're doing into a new context (view source dialog could be this
// way as an example).
int32 lX, lY;
BOOL bNamedAnchor = FALSE;
if(((iFormatOut & 0x1f ) == FO_PRESENT) && bReallyLoad == TRUE && XP_FindNamedAnchor(GetContext(), pUrl, &lX, &lY) == TRUE) {
if(IsWindowContext()) {
// Make the location visible on the screen....
PANECX(GetContext())->MakeElementVisible(lX, lY);
}
if(pUrl->history_num == 0) {
// Create URL from prev history entry to preserve security attributes, etc.
History_entry *pHist = SHIST_GetCurrent(&GetContext()->hist);
URL_Struct *pCopyURL = SHIST_CreateURLStructFromHistoryEntry(GetContext(), pHist);
// Swap addresses.
char *pSaveAddr = pUrl->address;
pUrl->address = pCopyURL->address;
pCopyURL->address = pSaveAddr;
// Free old URL, and reassign.
NET_FreeURLStruct(pUrl);
pUrl = pCopyURL;
SHIST_AddDocument(GetContext(), SHIST_CreateHistoryEntry(pUrl, pHist->title));
}
else {
SHIST_SetCurrent(&GetContext()->hist, pUrl->history_num);
}
// Didn't have to perform a load.
// However, we should call the normal routines to stop all the UI....
bReallyLoad = FALSE;
bNamedAnchor = TRUE;
}
// The URLs anchor and referrer may be a local file path.
// Change them to be network worthy.
CString csUrl;
if(pUrl->address != NULL) {
WFE_ConvertFile2Url(csUrl, pUrl->address);
XP_FREE(pUrl->address);
pUrl->address = XP_STRDUP(csUrl);
}
if(pUrl->referer != NULL) {
WFE_ConvertFile2Url(csUrl, pUrl->referer);
XP_FREE(pUrl->referer);
pUrl->referer = XP_STRDUP(csUrl);
}
#ifdef MOZ_MAIL_NEWS
if ((((iFormatOut & 0x1f ) == FO_PRESENT)
&& (GetContext()->type != MWContextMetaFile)
&& MSG_NewWindowRequiredForURL(GetContext(), pUrl))
|| bForceNew)
{
MWContextType type = MWContextBrowser;
if ( MSG_RequiresMailWindow ( pUrl->address ) )
type = MWContextMail;
else if ( MSG_RequiresNewsWindow ( pUrl->address ) )
type = MWContextNews;
if (( ( type == MWContextNews ) || ( type == MWContextMail ) ) && !bForceNew )
{
CMailNewsFrame *pMailNewsFrame = NULL;
MSG_PaneType paneType = MSG_PaneTypeForURL(pUrl->address);
switch ( paneType )
{
case MSG_THREADPANE:
{
MSG_FolderInfo *folder = MSG_GetFolderInfoFromURL(WFE_MSGGetMaster(), pUrl->address, TRUE);
BOOL bContinue = FALSE;
if (folder){
C3PaneMailFrame::Open(folder, MSG_MESSAGEKEYNONE, &bContinue);
}
if (!bContinue)
return MK_CHANGING_CONTEXT;
else
break;
}
case MSG_MESSAGEPANE:
{
C3PaneMailFrame *pThreadFrame = CMailNewsFrame::GetLastThreadFrame();
if (pThreadFrame && pThreadFrame == CWnd::GetActiveWindow() &&
pThreadFrame->GetMainContext() == this)
break;
pMailNewsFrame = CMessageFrame::Open();
if ( pMailNewsFrame ) {
pUrl->msg_pane = pMailNewsFrame->GetPane();
pMailNewsFrame->GetContext()->GetUrl( pUrl, iFormatOut, bReallyLoad );
}
return MK_CHANGING_CONTEXT;
}
case MSG_FOLDERPANE:
default:
pMailNewsFrame = CFolderFrame::Open();
if ( pMailNewsFrame )
pMailNewsFrame->GetContext()->GetUrl( pUrl, iFormatOut, bReallyLoad );
return MK_CHANGING_CONTEXT;
}
}
else if (GetContextType() != IconCX && GetContextType() != Pane) {
// Make this conditional like non MOZ_MAIL_NEWS code below.
if( bForceNew && EDT_IS_EDITOR(GetContext()) ) {
MWContext* pNewContext = SwitchToBrowserContext(pUrl);
return MK_CHANGING_CONTEXT;
}
}
}
#else
// Fix for bug 138116 - similar code to that in MOZ_MAIL_NEWS block above,
// so this makes "about:" URLs work in Composer without Mail/News module
// (We must always find or create a Navigator window to display in)
if( bForceNew && EDT_IS_EDITOR(GetContext()) )
{
SwitchToBrowserContext(pUrl);
return MK_CHANGING_CONTEXT;
}
#endif // MOZ_MAIL_NEWS
// Our first (well, almost) task is to interrupt the load.
// Only one load per window should be instantiated by the front end.
// Do this only if this is the context which is going to handle it.
// If this is a view source request, don't interrupt the context
// because we will be creating a new window.
if(bNamedAnchor == FALSE && bReallyLoad == TRUE &&
iFormatOut != FO_CACHE_AND_VIEW_SOURCE) {
Interrupt();
}
// Disable clicking.
GetContext()->waitingMode = TRUE;
// The fun part about all this is, is that we don't want to call reentrantly
// into the netlib, or else our idle interrupt routine will interrupt
// both requests. Check to see if we're waiting for an idle interrupt.
// Use the client pull mechanism to get around this.
// Also, if we're not supposed to really call to load this URL, then don't.
if(bReallyLoad == TRUE) {
if(m_bIdleInterrupt == FALSE) {
// Simply call the netlib routine, filling in some default data.
// Pass along the common exit routine, which will call the appropriate
// contexts exit routine.
int iOldInProcessNet = winfeInProcessNet;
winfeInProcessNet = TRUE;
StartAnimation();
if ( m_cxType == IconCX)
iRetval = NET_GetURL(pUrl, iFormatOut, GetContext(), Icon_GetUrlExitRoutine);
else {
TIMING_MESSAGE(("begin-document,%08x,%08x,%s",
GetContext(), pUrl, pUrl->address));
TIMING_STARTCLOCK_OBJECT("fe:doc-xfer", pUrl);
TIMING_STARTCLOCK_OBJECT("fe:doc-load", GetContext());
iRetval = NET_GetURL(pUrl, iFormatOut, GetContext(), CFE_GetUrlExitRoutine);
}
FE_UpdateStopState(GetContext());
winfeInProcessNet = iOldInProcessNet;
}
else {
// Set client pull on this URL.
FEU_ClientPull(GetContext(), 250, pUrl, iFormatOut, TRUE);
// Return that no action was taken, yet.
iRetval = MK_NO_ACTION;
}
}
else {
// Indicate that we skipped loading since we're allowing someone to change
// context.
iRetval = MK_CHANGING_CONTEXT;
}
// If we were a named anchor, clean everything we did up.
if(bNamedAnchor == TRUE) {
iRetval = MK_DATA_LOADED;
// We need to update the location bar's text, since LayoutNewDocument was never
// called (routine responsible for this).
if(IsFrameContext() && GetContext()->type == MWContextBrowser && !EDT_IS_EDITOR(GetContext())){
if(IsGridCell() == FALSE) {
TRACE("Updating location bar for named anchor\n");
CWinCX *pWinCX = WINCX(GetContext());
CFrameGlue *pFrame = pWinCX->GetFrame();
if(pFrame){
pFrame->GetChrome()->UpdateURLBars(pUrl->address);
}
}
}
// Call the exit routine on the URL.
// Just use the common one that would have been used anyhow.
CFE_GetUrlExitRoutine(pUrl, iRetval, GetContext());
// If there aren't any connections for the window, also call all connections
// complete.
// Context by context version, don't use XP_IsContextBusy.
if(NET_AreThereActiveConnectionsForWindow(GetContext()) == FALSE) {
FE_AllConnectionsComplete(GetContext());
}
}
break;
}
}
// All Done.
return(iRetval);
}
void CAbstractCX::Reload(NET_ReloadMethod iReloadType) {
// Purpose: Reloads the current document in the context's history.
// Arguments: void
// Returns: void
// Comments: Standard stuff.
#ifdef EDITOR
if( EDT_IS_EDITOR(GetContext()) )
{
if( iReloadType == NET_RESIZE_RELOAD)
{
// Edit has its own refresh mechanism
EDT_RefreshLayout(GetContext());
return;
}
// For all other types of reload, Editor must use this:
iReloadType = NET_NORMAL_RELOAD;
}
#endif // EDITOR
if(CanCreateUrlFromHist()) {
URL_Struct *pUrl = CreateUrlFromHist(FALSE, NULL, iReloadType == NET_RESIZE_RELOAD);
// Force the load (normally).
if(pUrl) {
pUrl->force_reload = iReloadType;
GetUrl(pUrl, FO_CACHE_AND_PRESENT);
}
}
}
extern "C" Bool LO_LayingOut(MWContext * context);
void CAbstractCX::NiceReload(int usePassInType, NET_ReloadMethod iReloadType ) {
// Purpose: Reloads the current document in the context's history, only
// if we're currently not loading.
// Arguments: void
// Returns: void
// Comments: Standard stuff.
MWContext * context = GetContext();
if(XP_IsContextBusy(context) == TRUE
#ifndef MOZ_NGLAYOUT
|| LO_LayingOut(context)
#endif
) {
FEU_RequestIdleProcessing(context);
context->reSize = TRUE;
}
else {
context->reSize = FALSE;
#ifdef MOZ_NGLAYOUT
XP_ASSERT(0);
#else
NPL_SamePage(context);
#endif
if( usePassInType ) {
Reload( iReloadType );
return;
}
// Fix for 92797. Checking for editor flag covers both Mail and Page Composers
if (EDT_IS_EDITOR(context) /*MAIL_NEWS_TYPE(context->type)*/) {
Reload(NET_NORMAL_RELOAD);
}
else {
Reload(NET_RESIZE_RELOAD);
}
}
}
void CAbstractCX::Back() {
// Purpose: Goes back one in the history.
// Arguments: void
// Returns: void
// Comments: Standard stuff.
History_entry *pHist = SHIST_GetPrevious(GetContext());
if (GetContext()->grid_children) {
#ifdef MOZ_NGLAYOUT
XP_ASSERT(0);
#else
if (LO_BackInGrid(GetDocumentContext())) {
return;
}
#endif
}
if(pHist) {
GetUrl(SHIST_CreateURLStructFromHistoryEntry(GetContext(), pHist), FO_CACHE_AND_PRESENT);
}
}
void CAbstractCX::Forward() {
// Purpose: Goes forward one in the history.
// Arguments: void
// Returns: void
// Comments: Standard stuff.
History_entry *pHist = SHIST_GetNext(GetContext());
if (GetContext()->grid_children) {
#ifdef MOZ_NGLAYOUT
XP_ASSERT(0);
#else
if (LO_ForwardInGrid(GetDocumentContext())) {
return;
}
#endif
}
if(pHist) {
GetUrl(SHIST_CreateURLStructFromHistoryEntry(GetContext(), pHist), FO_CACHE_AND_PRESENT);
}
}
#ifndef MOZ_NGLAYOUT
XL_TextTranslation CAbstractCX::TranslateText(URL_Struct *pUrl, const char *pFileName, const char *pPrefix, int iWidth) {
// Purpose: Translate a url into text.
// Arguments: pUrl The URL to translate.
// pFileName The file in which to save the translation, CANNOT BE NULL.
// pPrefix A prefix for each line, CANNOT BE NULL.
// iWidth The width in characters of each line.
// Returns: XL_TextTranslation as XL_TranslateText
// Comments: Wraps all the work of manually calling the text translation routines.
// There's no need to track the PrintSetup struct we create in this function,
// as it will come back in the translation exit routine and can be
// freed there.
// Create a new print setup.
PrintSetup *pTextFE = XP_NEW(PrintSetup);
// Initialize.
XL_InitializeTextSetup(pTextFE);
// Assign in the needed members.
pTextFE->width = iWidth;
if(pPrefix)
pTextFE->prefix = XP_STRDUP(pPrefix);
else
pTextFE->prefix = XP_STRDUP("");
pTextFE->eol = "\r\n";
pTextFE->filename = XP_STRDUP(pFileName);
pTextFE->out = fopen(pFileName, "wb");
pTextFE->completion = CFE_TextTranslationExitRoutine; // Abstracted exit routine.
pTextFE->url = pUrl;
pTextFE->carg = CX2VOID(this, CAbstractCX);
// Do it.
return(XL_TranslateText(GetContext(), pUrl, pTextFE));
}
#endif /* MOZ_NGLAYOUT */
void CAbstractCX::Interrupt() {
// Purpose: Interrupt any loads in a context.
// Arguments: void
// Returns: void
// Comments: If able, this will interrupt any loads in a context.
// If unable, then sets a flag for idle time interrupting.
// Increment our level of nested ness in the Interrupt function.
// Problem is, that this is the only function which actually deletes
// a context.
// If we're nested several levels, then each tries to free the context.
m_iInterruptNest++;
// Provide a way to interrupt even if we're winfeInProcessNet but there
// is currently no activity.
// If we're not busy, then there's no need to interrupt.
if(IsContextStoppable() == FALSE) {
// Clear the idle interrupt if already set.
m_bIdleInterrupt = FALSE;
}
// Reentrant safe version.
else if(winfeInProcessNet == FALSE) {
winfeInProcessNet = TRUE;
XP_InterruptContext(GetContext());
winfeInProcessNet = FALSE;
// Set the flag that we need no idle interrupt.
// This is to avoid cases where we have set to idle interrupt, and get
// called again where we actually do interrupt.
m_bIdleInterrupt = FALSE;
}
else {
// Request some idle processing.
FEU_RequestIdleProcessing(GetContext());
m_bIdleInterrupt = TRUE;
}
// Decrement the level of nestedness.
m_iInterruptNest--;
// Check to see if we're supposed to delete this thing.
// Idle interrupt will be true if unable to do anything, and will need
// idle time so we don't destroy it then.
// m_bDestroyed will be true, requesting the deletion.
// m_iInterruptNest will be 0, indicating that we are at the bottom
// most level of interrupt call.
if(m_bDestroyed == TRUE &&
m_bIdleInterrupt == FALSE &&
m_iInterruptNest == 0) {
// Delete.
delete this;
}
return;
}
BOOL CAbstractCX::IsContextStoppableRecurse() {
MWContext *pChild;
if (!GetContext())
return FALSE;
if ((m_bImagesLoading || m_bImagesLooping) && !m_bImagesDelayed)
return TRUE;
if ((m_bMochaImagesLoading || m_bMochaImagesLooping) && !m_bMochaImagesDelayed)
return TRUE;
XP_List *pTraverse = GetContext()->grid_children;
while (pChild = (MWContext *)XP_ListNextObject(pTraverse)) {
if (ABSTRACTCX(pChild)->IsContextStoppableRecurse())
return TRUE;
}
return FALSE;
}
// A wrapper around XP_IsContextStoppable. This is necessary
// because a context is stoppable if its image context is
// stoppable, and the image context is owned by the Front End.
BOOL CAbstractCX::IsContextStoppable() {
return (IsContextStoppableRecurse() ||
XP_IsContextStoppable(GetContext()));
}
void CAbstractCX::MailDocument() {
#ifdef MOZ_MAIL_NEWS
if(CanMailDocument()) {
#ifdef EDITOR
if (EDT_IS_EDITOR(GetContext())) {
// Don't need to force saving document, EDT_MailDocument
// will do the right thing.
EDT_MailDocument(GetContext());
}
else {
MSG_MailDocumentURL(GetContext(),NULL);
}
#endif
}
#endif /* MOZ_MAIL_NEWS */
}
BOOL CAbstractCX::CanMailDocument() {
BOOL bRetval = TRUE;
#ifdef MOZ_MAIL_NEWS
if (!theApp.m_hPostalLib)
return(FALSE);
#endif // MOZ_MAIL_NEWS
if(IsDestroyed()) {
bRetval = FALSE;
}
else if(CanCreateUrlFromHist() == FALSE) {
bRetval = FALSE;
}
else if(IsGridParent()) {
bRetval = FALSE;
}
return(bRetval);
}
void CAbstractCX::OpenUrl() {
// If we've a parent context, let them deal with this.
if( GetParentContext() ) {
ABSTRACTCX(GetParentContext())->OpenUrl();
} else if( !IsDestroyed() ) {
ASSERT( GetDialogOwner() );
// Have the frame bring up the open url dialog.
if( GetDialogOwner() ) {
CDialogURL urlDlg(GetDialogOwner(), GetContext());
urlDlg.DoModal();
}
}
}
BOOL CAbstractCX::CanOpenUrl() {
// If we've a parent context, let them deal with this.
if(GetParentContext()) {
return(ABSTRACTCX(GetParentContext())->CanOpenUrl());
} else if(IsDestroyed()) {
return(FALSE);
} else {
// Perhaps not if we're in some kiosk mode.
return( GetDialogOwner() ? TRUE : FALSE);
}
}
void CAbstractCX::NewWindow() {
// Create a new window.
if(CanNewWindow()) {
CFE_CreateNewDocWindow(GetContext(), NULL);
}
}
BOOL CAbstractCX::CanNewWindow() {
// Can always get a new window (well....)
BOOL bRetval = TRUE;
if(IsDestroyed() == TRUE) {
bRetval = FALSE;
}
else {
// Limit windows only for win16
#ifdef XP_WIN16
// Limit to 8 top level browser contexts.
// We may have Edit windows open and we run into
// the limit of four real quick!
if(XP_ContextCount(MWContextBrowser, TRUE) >= 8) {
bRetval = FALSE;
}
#endif
}
return(bRetval);
}
static void UpdateUI(CAbstractCX *pCX)
{
if(pCX->IsFrameContext() == TRUE) {
CWinCX *pWinCX = WINCX(pCX->GetContext());
CFrameGlue *pFrame = pWinCX->GetFrame();
// We need to make sure the toolbar buttons are correctly updated.
// Most importantly, the stop button needs to be updated
if(pFrame){
CFrameWnd* pFrameWnd = pFrame->GetFrameWnd();
if (pFrameWnd)
pFrameWnd->SendMessageToDescendants(WM_IDLEUPDATECMDUI, (WPARAM)TRUE, (LPARAM)0);
}
}
}
void CAbstractCX::AllBack() {
// Pass up to the parent for the ALL effect.
if(GetParentContext()) {
ABSTRACTCX(GetParentContext())->AllBack();
}
else if(IsDestroyed() == FALSE) {
Back();
UpdateUI(this);
}
}
BOOL CAbstractCX::CanAllBack() {
// Ask the parent for the ALL effect.
if(GetParentContext()) {
return(ABSTRACTCX(GetParentContext())->CanAllBack());
}
BOOL bRetval = TRUE;
if(IsDestroyed()) {
bRetval = FALSE;
}
else {
// Ask the session history.
bRetval = SHIST_CanGoBack((GetContext()));
}
return(bRetval);
}
void CAbstractCX::AllForward() {
// Pass up to the parent for the ALL effect.
if(GetParentContext()) {
ABSTRACTCX(GetParentContext())->AllForward();
}
else if(IsDestroyed() == FALSE) {
Forward();
UpdateUI(this);
}
}
BOOL CAbstractCX::CanAllForward() {
// Ask the parent for the ALL effect.
if(GetParentContext()) {
return(ABSTRACTCX(GetParentContext())->CanAllForward());
}
BOOL bRetval = TRUE;
if(IsDestroyed()) {
bRetval = FALSE;
}
else {
// Ask the session history.
bRetval = SHIST_CanGoForward((GetContext()));
}
return(bRetval);
}
void CAbstractCX::AllInterrupt() {
// Pass up to the parent for the ALL effect.
if(GetParentContext()) {
ABSTRACTCX(GetParentContext())->AllInterrupt();
}
else if(IsDestroyed() == FALSE) {
Interrupt();
}
}
BOOL CAbstractCX::CanAllInterrupt() {
// Ask the parent for the ALL effect.
if(GetParentContext()) {
return(ABSTRACTCX(GetParentContext())->CanAllInterrupt());
}
BOOL bRetval = TRUE;
if(IsDestroyed()) {
bRetval = FALSE;
}
else {
// See if the context is busy.
bRetval = IsContextStoppable();
}
return(bRetval);
}
void CAbstractCX::AllReload(NET_ReloadMethod iReloadType) {
// Pass up to the parent for the ALL effect.
if(GetParentContext()) {
ABSTRACTCX(GetParentContext())->AllReload(iReloadType);
}
else if(IsDestroyed() == FALSE) {
Reload(iReloadType);
}
}
BOOL CAbstractCX::CanAllReload() {
// Ask the parent for the ALL effect.
if(GetParentContext()) {
return(ABSTRACTCX(GetParentContext())->CanAllReload());
}
BOOL bRetval = TRUE;
if(IsDestroyed()) {
bRetval = FALSE;
}
else {
// See if the context can be reloaded (has history).
History_entry *pHist = SHIST_GetCurrent(&(GetContext()->hist));
if(pHist == NULL) {
bRetval = FALSE;
}
}
return(bRetval);
}
BOOL CAbstractCX::CanAddToBookmarks()
{
if( GetParentContext() ) {
return(ABSTRACTCX(GetParentContext())->CanAddToBookmarks());
}
if( IsDestroyed() ) {
return(FALSE);
}
// Can only do this if we have something currently loaded.
if( !CanCreateUrlFromHist() ) {
return(FALSE);
}
return(TRUE);
}
void CAbstractCX::AddToBookmarks()
{
if( GetParentContext() ) {
ABSTRACTCX(GetParentContext())->AddToBookmarks();
return;
}
if( !CanAddToBookmarks() ) {
return;
}
History_entry *pHistEnt = SHIST_GetCurrent( &(GetContext()->hist) );
ASSERT(pHistEnt);
HT_AddBookmark( pHistEnt->address, GetContext()->title );
}
void CAbstractCX::CopySelection() {
#ifdef MOZ_NGLAYOUT
ASSERT(0);
#else
if(CanCopySelection() == FALSE) {
return;
}
HANDLE h;
HANDLE hData;
char * string;
char * text;
text = (char *)LO_GetSelectionText(GetDocumentContext());
if(!text) {
// Layout is reporting a selection, but we can't get it.
ASSERT(0);
return;
}
if(!::OpenClipboard(NULL)) {
FE_Alert(GetContext(), szLoadString(IDS_OPEN_CLIPBOARD));
return;
}
if(!::EmptyClipboard()) {
FE_Alert(GetContext(), szLoadString(IDS_EMPTY_CLIPBOARD));
return;
}
int len = XP_STRLEN(text) + 1;
hData = GlobalAlloc(GMEM_MOVEABLE, (DWORD) len);
string = (char *) GlobalLock(hData);
strncpy(string, text, len);
string[len - 1] = '\0';
GlobalUnlock(hData);
h = ::SetClipboardData(CF_TEXT, hData);
#ifdef XP_WIN32
int datacsid = GetWinCsid() & ~CS_AUTO;
if((CS_USER_DEFINED_ENCODING != datacsid) && (0 != datacsid))
{
len = CASTINT((INTL_StrToUnicodeLen(datacsid, (unsigned char*)text)+1) * 2);
hData = GlobalAlloc(GMEM_MOVEABLE, (DWORD) len);
string = (char *) GlobalLock(hData);
INTL_StrToUnicode(datacsid, (unsigned char*)text, (INTL_Unicode*)string, len);
GlobalUnlock(hData);
h = ::SetClipboardData(CF_UNICODETEXT, hData);
}
#endif
::CloseClipboard();
XP_FREE(text);
#endif
}
BOOL CAbstractCX::CanCopySelection() {
BOOL bRetval;
History_entry *pHist = SHIST_GetCurrent(&(GetContext()->hist));
if(IsDestroyed()) {
bRetval = FALSE;
}
else if(pHist == NULL) {
bRetval = FALSE;
}
else {
#ifdef MOZ_NGLAYOUT
XP_ASSERT(0);
bRetval = FALSE;
#else
// Is there anything selected to be copied?
bRetval = LO_HaveSelection(GetDocumentContext());
#endif
}
return(bRetval);
}
// Look up a context via ID.
// Used mainly by DDE and external application context lookup (out of process).
// Returns NULL on failure.
// To get the context ID, call FE_GetContextID or CAbstractCX::GetContextID
CAbstractCX *CAbstractCX::FindContextByID(DWORD dwID)
{
MWContext *pTraverseContext = NULL;
CAbstractCX *pTraverseCX = NULL;
XP_List * thelist = XP_GetGlobalContextList();
while (pTraverseContext = (MWContext *)XP_ListNextObject(thelist)) {
if(pTraverseContext != NULL && ABSTRACTCX(pTraverseContext) != NULL) {
pTraverseCX = ABSTRACTCX(pTraverseContext);
if(pTraverseCX->GetContextID() == dwID) {
break;
}
pTraverseCX = NULL;
}
}
return(pTraverseCX);
}
// Create a url struct from the history, with appropriate checking
// for NULL and such, so that we don't have this code scattered
// throughout the client.
// bClearStateData is a flag set to erase any data that can't be
// tossed around without upsetting the client (form data).
// It's off by default, so be careful out there.
URL_Struct *CAbstractCX::CreateUrlFromHist(BOOL bClearStateData, SHIST_SavedData *pSavedData, BOOL bWysiwyg)
{
#ifdef MOZ_NGLAYOUT
XP_ASSERT(0);
return NULL;
#else
TRACE("Creating URL from the current history entry.\n");
// Make sure that we're not destroyed.
if(IsDestroyed()) {
return(NULL);
}
// Do we have a history entry from which to create
// the url?
History_entry *pHistoryEntry = SHIST_GetCurrent(&(GetContext()->hist));
if(pHistoryEntry == NULL || pHistoryEntry->address == NULL) {
return(NULL);
}
URL_Struct *pUrl = NULL;
if(!bWysiwyg) {
pUrl = SHIST_CreateURLStructFromHistoryEntry(GetContext(), pHistoryEntry);
}
else {
pUrl = SHIST_CreateWysiwygURLStruct(GetContext(), pHistoryEntry);
}
if(pUrl == NULL) {
return(NULL);
}
if(bClearStateData != FALSE) {
TRACE("Clearing URL state data.\n");
// We may be wanting to copy the form data beyond the scope of this function.
// Make sure layout saves the current state.
LO_SaveFormData(GetDocumentContext());
// Are we to copy the session history to the parameter passed in (used in
// subsequent call to copy the form data)?
if(pSavedData) {
memcpy(pSavedData, (void *)&(pUrl->savedData), sizeof(SHIST_SavedData));
}
// If this structure changes in the future to hold data which can be carried
// across contexts, then we lose.
memset((void *)&(pUrl->savedData), 0, sizeof(SHIST_SavedData));
}
return(pUrl);
#endif /* MOZ_NGLAYOUT */
}
// Used mainly in cmdui enablers to determine if we could load from
// the current history entry.
BOOL CAbstractCX::CanCreateUrlFromHist()
{
// Make sure that we're not destroyed.
if(IsDestroyed()) {
return(FALSE);
}
// Do we have a history entry from which to create
// the url?
History_entry *pHistoryEntry = SHIST_GetCurrent(&(GetContext()->hist));
if(pHistoryEntry == NULL || pHistoryEntry->address == NULL) {
return(FALSE);
}
// Looks safe.
return(TRUE);
}
void CAbstractCX::ResetStopwatch()
{
m_ttStopwatch = theApp.GetTime();
m_ttOldwatch = m_ttStopwatch - 1;
}
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