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294 lines
8.2 KiB
C++
294 lines
8.2 KiB
C++
/* $Id: synchron.cpp,v 1.1 1998/09/25 18:01:41 ramiro%netscape.com Exp $
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. Portions
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* created by Warwick Allison, Kalle Dalheimer, Eirik Eng, Matthias
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* Ettrich, Arnt Gulbrandsen, Haavard Nord and Paul Olav Tvete are
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* Copyright (C) 1998 Warwick Allison, Kalle Dalheimer, Eirik Eng,
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* Matthias Ettrich, Arnt Gulbrandsen, Haavard Nord and Paul Olav
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* Tvete. All Rights Reserved.
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*/
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#include <qtimer.h>
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#include <qapp.h>
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#include "QtBrowserContext.h" // includes QtContext.h
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#include "qtbind.h"
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#include <qmsgbox.h>
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#include "layers.h"
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#include "DialogPool.h"
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#include "shist.h"
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//#include "contexts.h"
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#include <qobjcoll.h>
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#include <string.h>
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#include <qstring.h>
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#include <qpainter.h>
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#include <qmainwindow.h>
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#include <qstatusbar.h>
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/* this file contains some support for synchronous URL loading.
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* It is taken from the xfe though we are still not sure wether
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* we need this.
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*
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* Should be moved into a class.....
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*/
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bool fe_IsContextLooping(MWContext *context);
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bool fe_IsContextDestroyed(MWContext *context);
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bool fe_IsContextProtected(MWContext *context);
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void fe_UnProtectContext(MWContext *context);
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void fe_ProtectContext(MWContext *context);
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void fe_LowerSynchronousURLDialog (MWContext *context);
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void fe_synchronous_url_exit (URL_Struct *url, int status,
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MWContext *context);
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void fe_RaiseSynchronousURLDialog (MWContext *context, QWidget* parent,
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const char *title);
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int fe_AwaitSynchronousURL( MWContext* context );
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void fe_StartProgressGraph ( MWContext* context );
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void fe_SetCursor ( MWContext* context, bool );
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void fe_url_exit (URL_Struct *url, int status, MWContext *context);
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int
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QtContext::getSynchronousURL ( QWidget* widget_to_grab,
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const char *title,
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URL_Struct *url,
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int output_format,
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void *call_data )
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{
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#if 0// defined DEBUG_paul
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debug( "getSynchronousURL" );
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#endif
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int status;
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url->fe_data = call_data;
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fe_RaiseSynchronousURLDialog( context, widget_to_grab, title );
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status = NET_GetURL( url, output_format, context,
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fe_synchronous_url_exit );
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if( status < 0 )
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return status;
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else
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return fe_AwaitSynchronousURL( context );
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}
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int fe_AwaitSynchronousURL( MWContext* context )
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{
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/* Loop dispatching X events until the dialog box goes down as a result
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of the exit routine being called (which may be a result of the Cancel
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button being hit. */
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int status;
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fe_ProtectContext( context );
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while( CONTEXT_DATA ( context )->synchronous_url_dialog ) {
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qApp->processOneEvent();
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}
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fe_UnProtectContext( context );
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status = CONTEXT_DATA( context )->synchronous_url_exit_status;
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if( fe_IsContextDestroyed( context ) ) {
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free( CONTEXT_DATA( context ) );
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free( context );
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}
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return (status);
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}
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/*
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* fe_ProtectContext()
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*
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* Sets the dont_free_context_memory variable in the CONTEXT_DATA. This
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* will prevent the memory for the context and CONTEXT_DATA to be freed
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* even if the context was destroyed.
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*/
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void
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fe_ProtectContext(MWContext *context)
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{
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unsigned char del = 0; // XmDO_NOTHING;
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if (!CONTEXT_DATA(context)->dont_free_context_memory)
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{
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/* This is the first person trying to protect this context.
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* Dont allow the user to destroy this context using the windowmanger
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* delete menu item.
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*/
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//#warning Implement this. Kalle.
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// XtVaGetValues(CONTEXT_WIDGET(context), XmNdeleteResponse, &del, 0);
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CONTEXT_DATA(context)->delete_response = del;
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// XtVaSetValues(CONTEXT_WIDGET(context),
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// XmNdeleteResponse, XmDO_NOTHING, 0);
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}
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CONTEXT_DATA(context)->dont_free_context_memory++;
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}
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/*
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* fe_UnProtectContext()
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*
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* Undo what fe_ProtectContext() does. Unsets dont_free_context_memory
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* variable in the context_data.
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*/
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void
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fe_UnProtectContext(MWContext *context)
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{
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XP_ASSERT(CONTEXT_DATA(context)->dont_free_context_memory);
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if (CONTEXT_DATA(context)->dont_free_context_memory)
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{
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CONTEXT_DATA(context)->dont_free_context_memory--;
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if (!CONTEXT_DATA(context)->dont_free_context_memory) {
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/* This is the last person unprotecting this context.
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* Set the delete_response to what it was before.
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*/
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//#warning Implement this. Kalle.
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// XtVaSetValues(CONTEXT_WIDGET(context), XmNdeleteResponse,
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// CONTEXT_DATA(context)->delete_response, 0);
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}
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}
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}
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/*
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* fe_IsContextProtected()
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*
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* Return the protection state of the context.
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*/
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bool
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fe_IsContextProtected(MWContext *context)
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{
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return (CONTEXT_DATA(context)->dont_free_context_memory);
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}
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/*
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* fe_IsContextDestroyed()
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*
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* Return if the context was destroyed. This is valid only for protected
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* contexts.
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*/
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bool
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fe_IsContextDestroyed(MWContext *context)
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{
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return (CONTEXT_DATA(context)->destroyed);
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}
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/* Recurses over children of context, returning True if any context is
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stoppable. */
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bool
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fe_IsContextLooping(MWContext *context)
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{
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int i = 1;
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MWContext *child;
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if (!context)
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return false;
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if (CONTEXT_DATA(context)->looping_images_p)
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return true;
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while ((child = (MWContext*)XP_ListGetObjectNum (context->grid_children,
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i++)))
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if (fe_IsContextLooping(child))
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return true;
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return false;
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}
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void
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fe_LowerSynchronousURLDialog (MWContext *context)
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{
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if (CONTEXT_DATA (context)->synchronous_url_dialog)
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{
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CONTEXT_DATA (context)->synchronous_url_dialog = 0;
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/* If this context was destroyed, do not proceed furthur */
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if (fe_IsContextDestroyed(context))
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return;
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assert (CONTEXT_DATA (context)->active_url_count > 0);
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if (CONTEXT_DATA (context)->active_url_count > 0)
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CONTEXT_DATA (context)->active_url_count--;
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if (CONTEXT_DATA (context)->active_url_count <= 0)
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FE_AllConnectionsComplete (context);
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fe_SetCursor (context, false);
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}
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}
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void
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fe_synchronous_url_exit (URL_Struct *url, int status, MWContext *context)
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{
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if (status == MK_CHANGING_CONTEXT)
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return;
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fe_LowerSynchronousURLDialog (context);
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if (status < 0 && url->error_msg)
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{
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FE_Alert (context, url->error_msg);
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}
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NET_FreeURLStruct (url);
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CONTEXT_DATA (context)->synchronous_url_exit_status = status;
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}
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void
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fe_RaiseSynchronousURLDialog (MWContext *context, QWidget* parent,
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const char *title)
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{
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CONTEXT_DATA (context)->active_url_count++;
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if (CONTEXT_DATA (context)->active_url_count == 1)
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{
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CONTEXT_DATA (context)->clicking_blocked = true;
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fe_StartProgressGraph (context);
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fe_SetCursor (context, false);
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}
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CONTEXT_DATA (context)->synchronous_url_dialog = (QWidget*) ~0;
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CONTEXT_DATA (context)->synchronous_url_exit_status = 0;
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}
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void fe_StartProgressGraph ( MWContext* context )
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{
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// debug( "fe_StartProgressGraph %p", context );
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}
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void fe_SetCursor ( MWContext* context, bool huh)
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{
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// debug( "fe_SetCursor %p %s", context, huh ? "TRUE" : "FALSE" );
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}
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void
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fe_url_exit (URL_Struct *url, int status, MWContext *context)
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{
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XP_ASSERT (status == MK_INTERRUPTED ||
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CONTEXT_DATA (context)->active_url_count > 0);
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if (CONTEXT_DATA (context)->active_url_count > 0)
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CONTEXT_DATA (context)->active_url_count--;
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/* We should be guarenteed that XFE_AllConnectionsComplete() will be called
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right after this, if active_url_count has just gone to 0. */
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if (status < 0 && url->error_msg)
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{
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FE_Alert (context, url->error_msg);
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}
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#if defined(EDITOR) && defined(EDITOR_UI)
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/*
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* Do stuff specific to the editor
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*/
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if (context->type == MWContextEditor)
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//#warning Put this back in when I understand what does.
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{} // fe_EditorGetUrlExitRoutine(context, url, status);
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#endif
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if (status != MK_CHANGING_CONTEXT)
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{
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NET_FreeURLStruct (url);
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}
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}
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