New base class for accessing RDF backend.

This commit is contained in:
slamm%netscape.com 1998-08-26 18:34:42 +00:00
Родитель 0223a6815b
Коммит 24ec6053a3
2 изменённых файлов: 376 добавлений и 0 удалений

290
cmd/xfe/src/RDFBase.cpp Normal file
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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.
*/
/*
RDFBase.cpp - Class wrapper for HT/RDF backend
HT Pane creation and notification management
Created: Stephen Lamm <slamm@netscape.com>, 28-Jul-1998
*/
#include "RDFBase.h"
#include "xp_str.h"
#include "xpassert.h"
#if DEBUG_slamm
#define D(x) x
#else
#define D(x)
#endif
//////////////////////////////////////////////////////////////////////////
//
// RDFBase 'public' methods
//
//////////////////////////////////////////////////////////////////////////
XFE_RDFBase::XFE_RDFBase()
: _ht_pane(NULL),
_ht_view(NULL),
_ht_ns(NULL)
{
}
/*virtual*/
XFE_RDFBase::~XFE_RDFBase()
{
}
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::newPane()
{
initPane();
_ht_pane = HT_NewPane(_ht_ns);
HT_SetPaneFEData(_ht_pane, this);
}
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::newPaneFromURL(char *url)
{
int32 param_count = 0;
char ** param_names = NULL;
char ** param_values = NULL;
initPane();
_ht_pane = HT_PaneFromURL(NULL, url, _ht_ns, 0,
param_count, param_names, param_values);
HT_SetPaneFEData(_ht_pane, this);
}
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::newPaneFromResource(HT_Resource node)
{
newPaneFromResource(HT_GetRDFResource(node));
}
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::newPaneFromResource(RDF_Resource node)
{
initPane();
_ht_pane = HT_PaneFromResource(node, _ht_ns,
PR_FALSE, PR_TRUE, PR_TRUE);
HT_SetPaneFEData(_ht_pane, this);
}
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::newToolbarPane()
{
initPane();
_ht_pane = HT_NewToolbarPane(_ht_ns);
HT_SetPaneFEData(_ht_pane, this);
}
//////////////////////////////////////////////////////////////////////////
HT_Resource
XFE_RDFBase::getRootFolder()
{
XP_ASSERT(_ht_pane);
if (_ht_pane) {
if (_ht_view == NULL) {
// No view set. Get the selected view from HT-backend.
_ht_view = HT_GetSelectedView(_ht_pane);
}
// View are often loaded from the Net, so make sure we have
// one before we try to use it.
if (_ht_view) {
return HT_TopNode(_ht_view);
}
}
return NULL;
}
//////////////////////////////////////////////////////////////////////////
/*virtual*/ void
XFE_RDFBase::updateRoot()
{
}
//////////////////////////////////////////////////////////////////////////
/*virtual*/ void
XFE_RDFBase::notify(HT_Resource n, HT_Event whatHappened)
{
debugEvent(n, whatHappened);
}
//////////////////////////////////////////////////////////////////////////
//
// RDFBase 'protected' methods
//
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::notify_cb(HT_Notification ns, HT_Resource n,
HT_Event whatHappened,
void * /*token*/, uint32 /*tokenType*/)
{
XFE_RDFBase * xfe_rdfpane_obj = (XFE_RDFBase *)ns->data;
xfe_rdfpane_obj->notify(n, whatHappened);
}
//////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::initPane()
{
deletePane();
// Setup the notification struct
_ht_ns = new HT_NotificationStruct;
XP_BZERO(_ht_ns, sizeof(HT_NotificationStruct));
_ht_ns->notifyProc = notify_cb;
_ht_ns->data = this;
}
//////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::deletePane()
{
// Only delete the pane if we have a notification struct.
// No nofication struct means the pane was created by another object.
if (_ht_ns)
{
delete _ht_ns;
XP_ASSERT(_ht_pane);
if (_ht_pane)
{
HT_DeletePane(_ht_pane);
}
}
}
//////////////////////////////////////////////////////////////////////////
void
XFE_RDFBase::setHTView(HT_View view)
{
XP_ASSERT(view);
// Nothing to do
if (view == _ht_view) return;
_ht_view = view;
_ht_pane = HT_GetPane(_ht_view);
updateRoot();
}
//////////////////////////////////////////////////////////////////////////
#ifdef DEBUG
void
XFE_RDFBase::debugEvent(HT_Resource n, HT_Event whatHappened)
{
HT_View view = HT_GetView(n);
XP_ASSERT(view);
char *viewName = HT_GetViewName(view);
char *nodeName = HT_GetNodeName(n);
if (strcmp(viewName, nodeName) == 0)
nodeName = "<same>";
#define EVENTDEBUG(x) printf("%-21s %s, %s\n",(x),\
viewName,nodeName);
switch (whatHappened) {
case HT_EVENT_NODE_ADDED:
EVENTDEBUG("NODE_ADDED");
break;
case HT_EVENT_NODE_DELETED_DATA:
EVENTDEBUG("NODE_DELETED_DATA");
break;
case HT_EVENT_NODE_DELETED_NODATA:
EVENTDEBUG("NODE_DELETED_NODATA");
break;
case HT_EVENT_NODE_VPROP_CHANGED:
EVENTDEBUG("NODE_VPROP_CHANGED");
break;
case HT_EVENT_NODE_SELECTION_CHANGED:
EVENTDEBUG("NODE_SELECT");
break;
case HT_EVENT_NODE_OPENCLOSE_CHANGED:
EVENTDEBUG("NODE_OPENCLOSE_CHANGED");
break;
case HT_EVENT_VIEW_CLOSED:
EVENTDEBUG("VIEW_CLOSED");
break;
case HT_EVENT_VIEW_SELECTED:
EVENTDEBUG("VIEW_SELECTED");
break;
case HT_EVENT_VIEW_ADDED:
EVENTDEBUG("VIEW_ADDED");
break;
case HT_EVENT_NODE_OPENCLOSE_CHANGING:
EVENTDEBUG("NODE_OPENCLOSE_CHANGING");
break;
case HT_EVENT_VIEW_SORTING_CHANGED:
EVENTDEBUG("VIEW_SORTING_CHANGED");
break;
case HT_EVENT_VIEW_REFRESH:
EVENTDEBUG("VIEW_REFRESH");
break;
case HT_EVENT_VIEW_WORKSPACE_REFRESH:
EVENTDEBUG("VIEW_WORKSPACE_REFRESH");
break;
case HT_EVENT_NODE_EDIT:
EVENTDEBUG("NODE_EDIT");
break;
case HT_EVENT_WORKSPACE_EDIT:
EVENTDEBUG("WORKSPACE_EDIT");
break;
case HT_EVENT_VIEW_HTML_ADD:
EVENTDEBUG("VIEW_HTML_ADD");
break;
case HT_EVENT_VIEW_HTML_REMOVE:
EVENTDEBUG("VIEW_HTML_REMOVE");
break;
case HT_EVENT_NODE_ENABLE:
EVENTDEBUG("NODE_ENABLE");
break;
case HT_EVENT_NODE_DISABLE:
EVENTDEBUG("NODE_DISABLE");
break;
case HT_EVENT_NODE_SCROLLTO:
EVENTDEBUG("NODE_SCROLLTO");
break;
case HT_EVENT_COLUMN_ADD:
EVENTDEBUG("COLUMN_ADD");
break;
case HT_EVENT_COLUMN_DELETE:
EVENTDEBUG("COLUMN_DELETE");
break;
case HT_EVENT_COLUMN_SIZETO:
EVENTDEBUG("COLUMN_SIZETO");
break;
case HT_EVENT_COLUMN_REORDER:
EVENTDEBUG("COLUMN_REORDER");
break;
case HT_EVENT_COLUMN_SHOW:
EVENTDEBUG("COLUMN_SHOW");
break;
case HT_EVENT_COLUMN_HIDE:
EVENTDEBUG("COLUMN_HIDE");
break;
default:
D(printf("RDFBase: Unknown event, %d, on %s\n",
whatHappened, HT_GetNodeName(n)));
break;
}
}
#endif

86
cmd/xfe/src/RDFBase.h Normal file
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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.
*/
//----------------------------------------------------------------------
//
// Name: RDFBase.h
// Description: XFE_RDFBase class header.
// HT Pane creation and notification management
// Author: Stephen Lamm <slamm@netscape.com>
// Date: Tue Jul 28 11:28:50 PDT 1998
//
//----------------------------------------------------------------------
#ifndef _xfe_rdfbase_h_
#define _xfe_rdfbase_h_
#include "htrdf.h"
class XFE_RDFBase
{
public:
XFE_RDFBase();
virtual ~XFE_RDFBase ();
// Pane creation methods.
void newPane();
void newToolbarPane();
void newPaneFromURL(char * url);
void newPaneFromResource(HT_Resource node);
void newPaneFromResource(RDF_Resource node);
// Select a view of a pane.
// Use this to set the view without creating a new pane.
// (e.g. The toolbars share the pane created by the toolbox).
// This does not set up the notify callback. The original creator
// of the pane is responsible for distributing notify events
// to dependant views.
void setHTView(HT_View v);
// Get the root folder of the current view.
HT_Resource getRootFolder();
// Update the current view from the root.
virtual void updateRoot();
// Handle HT events
virtual void notify(HT_Resource n, HT_Event whatHappened);
protected:
// HT event callback. Setup when a new pane is created.
static void notify_cb(HT_Notification ns, HT_Resource n,
HT_Event whatHappened,
void *token, uint32 tokenType);
// Called by the pane creation methods to setup a pane
void initPane();
void deletePane();
#ifdef DEBUG
void debugEvent(HT_Resource n, HT_Event e);
#endif
HT_Pane _ht_pane;
HT_View _ht_view;
HT_Notification _ht_ns;
};
#endif /* _xfe_rdfbase_h_ */