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gecko-dev/cmd/macfe/MailNews/CSubscribeView.cp

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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) 1997 Netscape Communications Corporation. All Rights
* Reserved.
*/
// CSubscribeView.cp
#include "CSubscribeView.h"
// MacOS
#include <Events.h>
// PowerPlant
#include <LDropFlag.h>
#include <UCursor.h>
// XP
#include "msgcom.h"
// MacFE
#include "macutil.h"
#include "macgui.h"
#include "resgui.h"
#include "CPaneEnabler.h"
// Mail/News Specific
#include "CMailNewsContext.h"
#include "CSubscribeWindow.h"
#include "MailNewsgroupWindow_Defines.h"
#include "UMailFolderMenus.h"
#include "UMailSelection.h"
/*
Overview:
---------
CSubscribeView:
It inherits from CMailFlexTable and displays the list of newsgroups.
It has 3 states (or MSG_SubscribeMode) which correspond to the 3 panels
of the CSubscribeWindow: All, Search and New. In each state, you can
select the newsgroups you want to subscribe to.
CNewsgroup:
It corresponds to an entry in the CSubscribeView and allows
you to access to the properties of the entry. Its purpose
is more informational than functional. Most of the methods
are simple accessors. Some of them are not used but left
here for future generations.
Hints:
------
Loading of the newsgroup list is done in the idler because it's a synchronous
operation and we don't want it to be done before the window is displayed. It
could potentially take a long time.
The methods you need to know about are RefreshList() and the usual
pair of FindCommandStatus() and ObeyCommand(). The rest is mostly for
internal use.
Most of the commands handled by the CSubscribeView are of type cmd_NewsXXX
(cmd_NewsToggleSubscribe for instance) and they correspond to the different buttons
of the CSubscribeWindow. The commands which don't fit in that scheme (ie. for
which a higher and better level of abstraction might have been possible) are:
* msg_EditField: sent by the editable field of the "All Groups" tab panel,
it allows to do a type-ahead search in the list of newsgroups. Enabled
here in FindCommandStatus() and processed by CSubscribeWindow.
* cmd_OpenNewsHost: sent by the Add Server button. Enabled here in
FindCommandStatus() and processed by CSubscribeWindow.
* msg_TabSelect: sent by the LTabGroup. Processed here.
The communication with the news servers has two states. In the first one,
we download the list of newsgroup names: it happens the first time we
connect to the server (the list is then stored in a cache file), or
everytime we click the Get Groups button. In that state, the user is not
allowed to do anything except cancel or connect to another server.
In the second state, we download the number of postings in each newsgroup:
it happens everytime we switch to another tab panel or open a folder in
the list. Since it is much more common, it is done asynchronously and
all (or almost all) the commands must be available to the user. So, we have
two flags which indicate how busy we are. The first one, mStillLoading,
is inherited from CMailFlexTable and is set whenever we talk to the host.
The second flag, mStillLoadingFullList, is defined here and is set when
we downnload the newsgroup list.
More info about the window in "CSubscribeWindow.cp".
History:
--------
November 97:
Added the mCommitState for IMAP public folders support. It is set
when the user clicks OK: while the BE talks to the IMAP server,
the dialog is put in a state where the only possible action is
to click the Stop button.
*/
enum
{
kNormalMessageFolderIconID = 15238
, kNewsgroupIconID = 15231
, kSubscribedIconID = 15237
, kUnsubscribedIconID = 15235
};
#define kIconMargin 4
#define kIndentPerLevel 16
#define kIconWidth 16
#pragma mark --- CNewsgroup
//----------------------------------------------------------------------------
// CNewsgroup
//
// Constructor
// Cache functions
//----------------------------------------------------------------------------
MSG_GroupNameLine CNewsgroup::sNewsgroupData;
MSG_ViewIndex CNewsgroup::sCachedIndex;
CNewsgroup::CNewsgroup(TableIndexT inRow, MSG_Pane* inNewsgroupList)
: mIndex(inRow - 1)
, mNewsgroupList(inNewsgroupList)
{
InvalidateCache();
UpdateCache();
}
void CNewsgroup::InvalidateCache() const
{
sCachedIndex = LONG_MAX;
}
void CNewsgroup::UpdateCache() const
{
if (mIndex != sCachedIndex)
{
MSG_GetGroupNameLineByIndex(mNewsgroupList, mIndex, 1, &sNewsgroupData);
sCachedIndex = mIndex;
}
}
//----------------------------------------------------------------------------
// CNewsgroup / Newsgroup info accessor functions
//
// GetNewsgroupLine
//
// GetName
// GetPrettyName
// CountPostings
// GetLevel
// CanContainThreads
// CountChildren
// GetIconID
//----------------------------------------------------------------------------
MSG_GroupNameLine* CNewsgroup::GetNewsgroupLine() const
{
UpdateCache();
return &sNewsgroupData;
}
char* CNewsgroup::GetName() const { return GetNewsgroupLine()->name;}
char* CNewsgroup::GetPrettyName() const { return GetNewsgroupLine()->name;}
Int32 CNewsgroup::CountPostings() const { return GetNewsgroupLine()->total;}
UInt32 CNewsgroup::GetLevel() const { return GetNewsgroupLine()->level;}
Boolean CNewsgroup::CanContainThreads() const { return GetLevel() > kRootLevel;}
UInt32 CNewsgroup::CountChildren() const
{
if (HasChildren())
return sNewsgroupData.total;
return 0;
}
ResIDT CNewsgroup::GetIconID() const
{
//<2F> TO DO <20>: deal with the "Open" state, the "read" state, etc.
if (this->HasChildren())
return kNormalMessageFolderIconID;
else
return kNewsgroupIconID;
}
//----------------------------------------------------------------------------
// CNewsgroup / Flags accessor functions
//
// GetNewsgroupFlags
//
// IsOpen
// HasChildren
// IsSubscribed
// IsNew
//----------------------------------------------------------------------------
UInt32 CNewsgroup::GetNewsgroupFlags() const
{
UpdateCache();
return sNewsgroupData.flags;
}
Boolean CNewsgroup::IsOpen() const
{
return ((GetNewsgroupFlags() & MSG_GROUPNAME_FLAG_ELIDED) == 0);
}
Boolean CNewsgroup::HasChildren() const
{
return ((GetNewsgroupFlags() & MSG_GROUPNAME_FLAG_HASCHILDREN) != 0);
}
Boolean CNewsgroup::IsSubscribed() const
{
return ((GetNewsgroupFlags() & MSG_GROUPNAME_FLAG_SUBSCRIBED) != 0);
}
Boolean CNewsgroup::IsNew() const
{
return ((GetNewsgroupFlags() & MSG_GROUPNAME_FLAG_NEW_GROUP) != 0);
}
#pragma mark --- CSubscribeView
//----------------------------------------------------------------------------
// CSubscribeView Constructor/Destructor
//
//----------------------------------------------------------------------------
CSubscribeView::CSubscribeView(LStream *inStream)
: Inherited(inStream),
mStillLoadingFullList(false),
mCommitState(kIdle)
{
}
CSubscribeView::~CSubscribeView()
{
// Warning: Don't call MSG_DestroyPane() here:
// CMailFlexTable calls SetMessagePane(NULL) in its destructor.
}
//----------------------------------------------------------------------------
// CloseParentWindow
//
//----------------------------------------------------------------------------
void CSubscribeView::CloseParentWindow()
{
CSubscribeWindow * myWindow =
dynamic_cast<CSubscribeWindow*>(LWindow::FetchWindowObject(GetMacPort()));
if (myWindow)
myWindow->AttemptClose();
}
//----------------------------------------------------------------------------
// SetProgressBarLaziness
//
//----------------------------------------------------------------------------
void CSubscribeView::SetProgressBarLaziness(
CProgressListener::ProgressBarLaziness inLaziness)
{
CSubscribeWindow * myWindow =
dynamic_cast<CSubscribeWindow*>(LWindow::FetchWindowObject(GetMacPort()));
if (myWindow)
{
CProgressListener * myProgress = myWindow->GetProgressListener();
if (myProgress)
myProgress->SetLaziness(inLaziness);
}
}
//----------------------------------------------------------------------------
// ProcessKeyPress
//
// Update buttons depending on the selection when scrolling through the list
//----------------------------------------------------------------------------
Boolean CSubscribeView::ProcessKeyPress(const EventRecord &inKeyEvent)
{
Boolean keyHandled = Inherited::ProcessKeyPress(inKeyEvent);
CPaneEnabler::UpdatePanes();
return keyHandled;
}
//----------------------------------------------------------------------------
// GetIconID
//
//----------------------------------------------------------------------------
ResIDT CSubscribeView::GetIconID(TableIndexT inRow) const
{
CNewsgroup newsgroup(inRow, GetMessagePane());
return newsgroup.GetIconID();
}
//----------------------------------------------------------------------------
// DrawCell
//
//----------------------------------------------------------------------------
void CSubscribeView::DrawCell(const STableCell& inCell, const Rect& inLocalRect)
{
// check if we are in the update region
RgnHandle updateRgn = GetLocalUpdateRgn();
if (!updateRgn)
return;
Rect updateRect = (**updateRgn).rgnBBox;
::DisposeRgn(updateRgn);
Rect intersection;
if (!::SectRect(&updateRect, &inLocalRect, &intersection))
return;
// draw the cell
StClipRgnState savedClip;
::ClipRect(&intersection);
PaneIDT cellType = GetCellDataType(inCell);
CNewsgroup newsgroup(inCell.row, GetMessagePane());
switch (cellType)
{
case kNewsgroupNameColumn:
SInt16 newLeft = DrawIcons(inCell, inLocalRect);
Rect textRect = inLocalRect;
textRect.left = newLeft;
char groupName[cMaxMailFolderNameLength+1];
if (GetHiliteText(inCell.row, groupName, sizeof(groupName), &textRect))
DrawTextString(groupName, &mTextFontInfo, 0, textRect);
break;
case kNewsgroupSubscribedColumn:
if (CanSubscribeToNewsgroup(newsgroup))
{
short iconID = (newsgroup.IsSubscribed() ?
kSubscribedIconID : kUnsubscribedIconID);
DrawIconFamily(iconID, 16, 16, 0, inLocalRect);
}
break;
case kNewsgroupPostingsColumn:
if (CanSubscribeToNewsgroup(newsgroup))
DrawCountCell(newsgroup.CountPostings(), inLocalRect);
break;
}
}
//----------------------------------------------------------------------------
// RefreshList
//
//----------------------------------------------------------------------------
void CSubscribeView::RefreshList(MSG_Host* newsHost, MSG_SubscribeMode subscribeMode)
{
mNewsHost = newsHost;
mSubscribeMode = subscribeMode;
StartIdling();
}
//----------------------------------------------------------------------------
// SpendTime
//
//----------------------------------------------------------------------------
void CSubscribeView::SpendTime(const EventRecord &)
{
// stop idling first (avoid infinite recursive calls if BE calls FE_Alert)
StopIdling();
Assert_(mContext != NULL);
if (mContext == NULL)
return;
StSpinningBeachBallCursor beachBallCursor;
// create the list
if (GetMessagePane() == NULL)
{
SetMessagePane(MSG_CreateSubscribePaneForHost(
*mContext, CMailNewsContext::GetMailMaster(), mNewsHost));
ThrowIfNULL_(GetMessagePane());
MSG_SetFEData(GetMessagePane(), CMailCallbackManager::Get());
// force a refresh of the postings count
SetProgressBarLaziness(CProgressListener::lazy_VeryButForThisCommandOnly);
MSG_Command(GetMessagePane(), MSG_UpdateMessageCount, NULL, NULL);
}
else
{
// display the list (it is read from the cache file)
SetProgressBarLaziness(CProgressListener::lazy_VeryButForThisCommandOnly);
MSG_SubscribeSetHost(GetMessagePane(), mNewsHost);
}
MSG_SubscribeSetMode(GetMessagePane(), mSubscribeMode);
switch (mSubscribeMode)
{
case MSG_SubscribeAll:
MSG_GroupNameLine aLine;
// If the list (ie. the cache file) is empty, download it from the server.
if (! MSG_GetGroupNameLineByIndex(GetMessagePane(), 0, 1, &aLine))
{
SetProgressBarLaziness(CProgressListener::lazy_JustABit);
MSG_Command(GetMessagePane(), MSG_FetchGroupList, NULL, NULL);
}
break;
case MSG_SubscribeSearch:
// don't get the list yet: wait until user clicks Search button
break;
case MSG_SubscribeNew:
// Always get the list of new newsgroups from the server
SetProgressBarLaziness(CProgressListener::lazy_VeryButForThisCommandOnly);
MSG_Command(GetMessagePane(), MSG_CheckForNew, NULL, NULL);
break;
}
// notify ourselves
NotifySelfAll();
// Since fetching the group list is a synchronous operation, we may have a lot of
// unresponded to clicks and key strokes in the event queue. Flush them.
::FlushEvents(mDownMask | mUpMask | keyDownMask | keyUpMask | autoKeyMask, 0);
}
//----------------------------------------------------------------------------
// SearchForString
//
//----------------------------------------------------------------------------
void CSubscribeView::SearchForString(const StringPtr searchStr)
{
P2CStr(searchStr);
switch (MSG_SubscribeGetMode(GetMessagePane()))
{
case MSG_SubscribeAll:
MSG_ViewIndex theRow;
theRow = MSG_SubscribeFindFirst(GetMessagePane(), (const char *)searchStr);
STableCell theCell(theRow + 1, 1);
SetNotifyOnSelectionChange(false);
UnselectAllCells();
SetNotifyOnSelectionChange(true);
SelectCell(theCell);
ScrollCellIntoFrame(theCell);
CPaneEnabler::UpdatePanes();
break;
case MSG_SubscribeSearch:
MSG_SubscribeFindAll(GetMessagePane(), (const char *)searchStr);
// beep when list is empty
MSG_GroupNameLine aLine;
if (! MSG_GetGroupNameLineByIndex(GetMessagePane(), 0, 1, &aLine))
::SysBeep(1);
break;
}
}
//----------------------------------------------------------------------------
// SubscribeCancel
//
//----------------------------------------------------------------------------
void CSubscribeView::SubscribeCancel()
{
if (GetMessagePane() != NULL)
MSG_SubscribeCancel(GetMessagePane());
CloseParentWindow();
}
//----------------------------------------------------------------------------
// SubscribeCommit
//
//----------------------------------------------------------------------------
void CSubscribeView::SubscribeCommit()
{
if (GetMessagePane() != NULL)
{
mContext->AddListener(this);
if (XP_IsContextBusy(*mContext))
{
mCommitState = kInterrupting;
XP_InterruptContext(*mContext);
}
else
{
mCommitState = kCommitting;
MSG_SubscribeCommit(GetMessagePane());
}
}
else
CloseParentWindow();
}
//----------------------------------------------------------------------------
// CellHasDropFlag
//
//----------------------------------------------------------------------------
Boolean CSubscribeView::CellHasDropFlag(
const STableCell& inCell,
Boolean& outIsExpanded) const
{
PaneIDT cellType = GetCellDataType(inCell);
CNewsgroup newsgroup(inCell.row, GetMessagePane());
if (cellType == kNewsgroupNameColumn && newsgroup.CountChildren() != 0)
{
outIsExpanded = newsgroup.IsOpen();
return true;
}
return false;
}
//----------------------------------------------------------------------------
// SetCellExpansion
//
//----------------------------------------------------------------------------
void CSubscribeView::SetCellExpansion(
const STableCell& inCell,
Boolean inExpand)
{
CNewsgroup newsgroup(inCell.row, GetMessagePane());
if (inExpand == newsgroup.IsOpen())
return;
ToggleExpandAction(inCell.row);
}
//------------------------------------------------------------------------------
// GetNestedLevel
//------------------------------------------------------------------------------
// From CStandardFlexTable. Return the ident for that row.
// This method goes together with GetHiliteTextRect().
//
UInt16 CSubscribeView::GetNestedLevel(TableIndexT inRow) const
{
CNewsgroup newsgroup(inRow, GetMessagePane());
return newsgroup.GetLevel();
}
//------------------------------------------------------------------------------
// GetHiliteColumn
//------------------------------------------------------------------------------
// From CStandardFlexTable. When a row is selected, we can
// hilite the whole row or just the folder name.
// This method goes together with GetHiliteTextRect().
//
TableIndexT CSubscribeView::GetHiliteColumn() const
{
return mTableHeader->ColumnFromID(kNewsgroupNameColumn);
}
//------------------------------------------------------------------------------
// GetHiliteTextRect
//------------------------------------------------------------------------------
// From CStandardFlexTable. Pass back the rect to hilite for that row (either
// the whole row, either just the folder name). Return true if rect is not empty.
// This method goes together with GetHiliteColumn() and GetNestedLevel().
//
Boolean CSubscribeView::GetHiliteTextRect(
const TableIndexT inRow,
Rect& outRect) const
{
STableCell cell(inRow, GetHiliteColumn());
if (!GetLocalCellRect(cell, outRect))
return false;
Rect iconRect;
GetIconRect(cell, outRect, iconRect);
outRect.left = iconRect.right;
char folderName[cMaxMailFolderNameLength + 1];
GetHiliteText(inRow, folderName, sizeof(folderName), &outRect);
return true;
}
//------------------------------------------------------------------------------
// GetMainRowText
//------------------------------------------------------------------------------
// From CStandardFlexTable. Return the folder name for that row.
//
void CSubscribeView::GetMainRowText(
TableIndexT inRow,
char* outText,
UInt16 inMaxBufferLength) const
{
if (!outText || inMaxBufferLength == 0)
return;
if (inMaxBufferLength < cMaxMailFolderNameLength + 1)
{
*outText = '\0';
return;
}
CNewsgroup newsgroup(inRow, GetMessagePane());
// <20><><EFBFBD> FIX ME -> Get the BE to store the newsgroup name already unescaped
XP_STRCPY(outText, newsgroup.GetPrettyName());
NET_UnEscape(outText);
}
//----------------------------------------------------------------------------
// ChangeStarting
//
//----------------------------------------------------------------------------
void CSubscribeView::ChangeStarting(
MSG_Pane* inPane,
MSG_NOTIFY_CODE inChangeCode,
TableIndexT inStartRow,
SInt32 inRowCount)
{
switch ( inChangeCode )
{
case MSG_NotifyScramble:
case MSG_NotifyAll:
mStillLoadingFullList = true;
break;
}
Inherited::ChangeStarting(inPane, inChangeCode, inStartRow, inRowCount);
}
//----------------------------------------------------------------------------
// ChangeFinished
//
//----------------------------------------------------------------------------
void CSubscribeView::ChangeFinished(
MSG_Pane* inPane,
MSG_NOTIFY_CODE inChangeCode,
TableIndexT inStartRow,
SInt32 inRowCount)
{
switch ( inChangeCode )
{
case MSG_NotifyScramble:
case MSG_NotifyAll:
mStillLoadingFullList = false;
break;
}
Inherited::ChangeFinished(inPane, inChangeCode, inStartRow, inRowCount);
if ( mMysticPlane < kMysticUpdateThreshHold )
{
switch ( inChangeCode )
{
case MSG_NotifyScramble:
case MSG_NotifyAll:
UnselectAllCells();
break;
}
}
}
//----------------------------------------------------------------------------
// OpenRow
//
//----------------------------------------------------------------------------
// Called on enter/return or double-click.
// Hack: don't do anything when multiple items are selected.
//
void CSubscribeView::OpenRow(TableIndexT inRow)
{
if (inRow > 0)
{
CMailSelection selection;
if (selection.selectionSize <= 1)
{
STableCell aCell(inRow, 1);
Boolean outIsExpanded;
if (CellHasDropFlag(aCell, outIsExpanded))
{
MSG_ToggleExpansion (GetMessagePane(), inRow - 1, NULL);
}
}
}
}
//----------------------------------------------------------------------------
// ListenToMessage
//
//----------------------------------------------------------------------------
void CSubscribeView::ListenToMessage(MessageT inMessage, void* ioParam)
{
if (! ObeyCommand(inMessage, ioParam)) // check button messages first
{
switch (inMessage)
{
case msg_NSCAllConnectionsComplete:
if (mCommitState == kInterrupting)
{
mCommitState = kCommitting;
MSG_SubscribeCommit(GetMessagePane());
}
else if (mCommitState == kCommitting)
{
mCommitState = kIdle;
CloseParentWindow(); // the window is closed here...
return; // ...so exit now because I'm dead
}
/* no break; */
default:
Inherited::ListenToMessage(inMessage, ioParam);
break;
}
}
}
//----------------------------------------------------------------------------
// FindCommandStatus
//
//----------------------------------------------------------------------------
void CSubscribeView::FindCommandStatus(
CommandT inCommand,
Boolean &outEnabled,
Boolean &outUsesMark,
Char16 &outMark,
Str255 outName)
{
// The pane can be null when no server has been configured.
// In that case, we only enable the Add Server button.
if (GetMessagePane() == NULL)
{
outEnabled = (inCommand == cmd_OpenNewsHost);
return;
}
// When committing, allow only the Stop button...
if (mCommitState == kCommitting)
{
outEnabled = (inCommand == cmd_Stop);
return;
}
else if (mCommitState == kInterrupting)
{
outEnabled = false;
return;
}
// ...otherwise the Stop button is enabled whenever we talk to the server
if (inCommand == cmd_Stop)
{
outEnabled = (mStillLoading | mStillLoadingFullList);
return;
}
// Handle basic commands as long as we're not
// downloading the full newsgroups list
if (! mStillLoadingFullList)
{
if (FindMessageLibraryCommandStatus(inCommand, outEnabled, outUsesMark, outMark, outName))
return;
}
switch (inCommand)
{
case msg_EditField: // similar in behaviour to cmd_NewsSearch
case cmd_OpenNewsHost:
case cmd_NewsHostChanged:
case cmd_NewsToggleSubscribe:
case cmd_NewsSetSubscribe:
case cmd_NewsClearSubscribe:
case cmd_NewsExpandGroup:
case cmd_NewsExpandAll:
case cmd_NewsCollapseGroup:
case cmd_NewsCollapseAll:
case cmd_NewsGetGroups:
case cmd_NewsSearch:
case cmd_NewsGetNew:
case cmd_NewsClearNew:
FindSubscribeCommandStatus(inCommand, outEnabled);
break;
default:
Inherited::FindCommandStatus(
inCommand, outEnabled, outUsesMark, outMark, outName);
break;
}
}
//----------------------------------------------------------------------------
// FindSubscribeCommandStatus
//
//----------------------------------------------------------------------------
void CSubscribeView::FindSubscribeCommandStatus(
CommandT inCommand,
Boolean &outEnabled)
{
Assert_(GetMessagePane() != NULL);
if (GetMessagePane() == NULL)
{
outEnabled = false;
return;
}
// When downloading the newsgroups list, can't do
// anything but connect to a different server.
if (mStillLoadingFullList)
{
outEnabled = (inCommand == cmd_NewsHostChanged);
return;
}
// When connected to an IMAP server, the Search and New tab panels
// are completely disabled except for connect to a different server.
if (MSG_IsIMAPHost(mNewsHost))
{
switch (MSG_SubscribeGetMode(GetMessagePane()))
{
case MSG_SubscribeSearch:
case MSG_SubscribeNew:
outEnabled = (inCommand == cmd_NewsHostChanged);
return; // <-- note it
}
}
switch (inCommand)
{
// Expand All is enabled if the selection
// contains a non-expanded folder and
// if the host is not an IMAP host
case cmd_NewsExpandAll:
{
if (! MSG_IsIMAPHost(mNewsHost))
{
CMailSelection selection;
GetSelection(selection);
if (selection.selectionSize > 0)
{
STableCell aCell;
Boolean outIsExpanded;
for (long index = 0; index < selection.selectionSize; index ++)
{
aCell.SetCell(selection.GetSelectionList()[index] + 1, 1);
if (CellHasDropFlag(aCell, outIsExpanded) && (! outIsExpanded))
{
outEnabled = true;
break;
}
}
}
}
}
break;
// These commands require a selection. Note: Collapse All
// does not really require a selection but it is prettier
// when it is not activated just after the list is displayed.
case cmd_NewsToggleSubscribe:
case cmd_NewsExpandGroup:
case cmd_NewsCollapseGroup:
case cmd_NewsCollapseAll:
{
CMailSelection selection;
GetSelection(selection);
outEnabled = (selection.selectionSize > 0);
}
break;
// These commands require a selection _and_ the subscribed/unsubscribed
// state of the selected items must match the command.
case cmd_NewsSetSubscribe:
case cmd_NewsClearSubscribe:
{
Boolean lookingForBool = (inCommand == cmd_NewsSetSubscribe ? false : true);
CMailSelection selection;
if (GetSelection(selection))
{
const MSG_ViewIndex* index = selection.GetSelectionList();
for (int i = 0; i < selection.selectionSize; i ++, index++)
{
CNewsgroup newsgroup((*index + 1), GetMessagePane()); // add one to convert to TableIndexT
if (CanSubscribeToNewsgroup(newsgroup))
{
if (lookingForBool == newsgroup.IsSubscribed())
{
outEnabled = true; // found what I was looking for
break;
}
}
}
}
}
break;
// Don't enable Get Groups when I'm downloading the number of postings.
// This is not required but forcing the user to click Stop before is
// a way to notify him that something is going on on the network.
case cmd_NewsGetGroups:
outEnabled = (! mStillLoading);
break;
// This commands are always enabled, except when downloading
// the newsgroups list but this is checked above
case msg_EditField: // similar in behaviour to cmd_NewsSearch
case cmd_NewsSearch:
case cmd_NewsGetNew:
case cmd_NewsClearNew:
default:
outEnabled = true;
break;
}
}
//----------------------------------------------------------------------------
// ObeyCommand
//
//----------------------------------------------------------------------------
Boolean CSubscribeView::ObeyCommand(
CommandT inCommand,
void *ioParam)
{
Boolean result = false;
mContext->SetCurrentCommand(inCommand);
switch(inCommand)
{
//-----------------------------------
// TabGroup command
//-----------------------------------
case msg_TabSelect:
if (GetMessagePane() != NULL)
{
CMailSelection selection;
GetSelection(selection);
if (selection.selectionSize == 0)
{
// set a selection to activate the button enablers
STableCell cell(1,1);
SelectCell(cell);
}
}
result = true;
break;
//-----------------------------------
// Button commands
//-----------------------------------
// now handled by the window
// case cmd_NewsHostChanged:
// if (mStillLoading || mStillLoadingFullList)
// ObeyCommand(cmd_Stop, NULL);
// MSG_Host* newsHost = (MSG_Host*)(ioParam);
// RefreshList(newsHost, MSG_SubscribeGetMode(GetMessagePane()));
// result = true;
// break;
case cmd_NewsExpandAll:
case cmd_NewsCollapseAll:
case cmd_NewsToggleSubscribe:
case cmd_NewsSetSubscribe:
case cmd_NewsClearSubscribe:
case cmd_NewsGetGroups:
case cmd_NewsGetNew:
case cmd_NewsClearNew:
MSG_CommandType theCommand;
switch (inCommand)
{
case cmd_NewsExpandAll: theCommand = MSG_ExpandAll; break;
case cmd_NewsCollapseAll: theCommand = MSG_CollapseAll; break;
case cmd_NewsToggleSubscribe: theCommand = MSG_ToggleSubscribed; break;
case cmd_NewsSetSubscribe: theCommand = MSG_SetSubscribed; break;
case cmd_NewsClearSubscribe: theCommand = MSG_ClearSubscribed; break;
case cmd_NewsGetGroups: theCommand = MSG_FetchGroupList; break;
case cmd_NewsGetNew: theCommand = MSG_CheckForNew; break;
case cmd_NewsClearNew: theCommand = MSG_ClearNew; break;
}
if (inCommand == cmd_NewsExpandAll || inCommand == cmd_NewsCollapseAll)
UCursor::SetWatch();
CMailSelection selection; // not all commands require the selection...
GetSelection(selection); // ...in these cases, it will just be ignored
MSG_Command(GetMessagePane(),
theCommand,
(MSG_ViewIndex*)selection.GetSelectionList(),
selection.selectionSize
);
UCursor::SetArrow();
result = true;
break;
//-----------------------------------
// MSGLIB commands
//-----------------------------------
default:
if (inCommand == cmd_Stop)
{
if (mCommitState != kIdle)
{
mCommitState = kIdle;
mContext->RemoveListener(this);
}
}
result = (ObeyMessageLibraryCommand(inCommand, ioParam)
|| Inherited::ObeyCommand(inCommand, ioParam));
break;
}
return result;
}
//----------------------------------------------------------------------------
// ClickSelect
//
// Handle clicks in the Subscribe column.
//----------------------------------------------------------------------------
Boolean CSubscribeView::ClickSelect(
const STableCell &inCell,
const SMouseDownEvent &inMouseDown)
{
PaneIDT cellType = GetCellDataType(inCell);
if (cellType == kNewsgroupSubscribedColumn)
return true;
else
return Inherited::ClickSelect(inCell, inMouseDown);
}
//----------------------------------------------------------------------------
// ClickCell
//
// Handle clicks in the Subscribe column.
//----------------------------------------------------------------------------
void CSubscribeView::ClickCell(
const STableCell &inCell,
const SMouseDownEvent &inMouseDown)
{
Boolean clickInSubscribeColumn = false;
PaneIDT cellType = GetCellDataType(inCell);
if (cellType == kNewsgroupSubscribedColumn)
{
CNewsgroup newsgroup(inCell.row, GetMessagePane());
if (CanSubscribeToNewsgroup(newsgroup))
{
clickInSubscribeColumn = true;
Inherited::ClickCell(inCell, inMouseDown);
MSG_ViewIndex viewIndex = inCell.row - 1;
MSG_Command(GetMessagePane(), MSG_ToggleSubscribed, &viewIndex, 1);
}
}
if (! clickInSubscribeColumn)
Inherited::ClickCell(inCell, inMouseDown);
}
//----------------------------------------------------------------------------
// GetQapRowText
//
// Return info for QA Partner
//----------------------------------------------------------------------------
#if defined(QAP_BUILD)
void CSubscribeView::GetQapRowText(
TableIndexT inRow,
char* outText,
UInt16 inMaxBufferLength) const
{
if (!outText || inMaxBufferLength == 0)
return;
cstring rowText("");
short colCount = mTableHeader->CountVisibleColumns();
CNewsgroup newsgroup(inRow, GetMessagePane());
CMailNewsWindow * myWindow = dynamic_cast<CMailNewsWindow*>(LWindow::FetchWindowObject(GetMacPort()));
if (!myWindow) return;
for (short col = 1; col <= colCount; col ++)
{
STableCell aCell(inRow, col);
LTableHeader::SColumnData * colData = mTableHeader->GetColumnData(col);
if (!colData) break;
LPane * colPane = myWindow->FindPaneByID(colData->paneID);
if (!colPane) break;
// get column name
CStr255 descriptor;
colPane->GetDescriptor(descriptor);
rowText += descriptor;
rowText += "=\042";
// add cell text
switch (PaneIDT dataType = GetCellDataType(aCell))
{
case kNewsgroupNameColumn:
if (newsgroup.CountChildren() != 0)
{
if (newsgroup.IsOpen())
rowText += "-";
else
rowText += "+";
}
else
rowText += " ";
rowText += newsgroup.GetName();
break;
case kNewsgroupSubscribedColumn:
if (CanSubscribeToNewsgroup(newsgroup))
if (newsgroup.IsSubscribed())
rowText += "+";
break;
case kNewsgroupPostingsColumn:
int theNum = newsgroup.CountPostings();
if (theNum >= 0)
{
char tempStr[32];
sprintf(tempStr, "%d", theNum);
rowText += tempStr;
}
else
rowText += "?";
break;
}
if (col < colCount)
rowText += "\042 | ";
else
rowText += "\042\r";
}
strncpy(outText, (char*)rowText, inMaxBufferLength);
outText[inMaxBufferLength - 1] = '\0';
} // CSubscribeView::GetQapRowText
#endif //QAP_BUILD
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