311 lines
5.8 KiB
C
311 lines
5.8 KiB
C
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/*
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* download.c
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*
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* Copyright (c) 1995-1997, John Kilburg <john@cs.unlv.edu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "port_before.h"
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#include <stdio.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include <X11/Intrinsic.h>
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#include <X11/StringDefs.h>
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#include <X11/Shell.h>
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#include "port_after.h"
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#include "MyDialog.h"
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#include "ChimeraP.h"
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typedef struct
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{
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MemPool mp;
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ChimeraSink wp;
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Widget pop, dialog;
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bool okd;
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char *filename;
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bool ended;
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Widget ok;
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ChimeraTask wt;
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ChimeraResources cres;
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} DownloadInfo;
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static void DoSaveTask _ArgProto((DownloadInfo *));
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static void SaveTask _ArgProto((void *));
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static void DownloadDestroy _ArgProto((DownloadInfo *));
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static void DownloadMakePop _ArgProto((DownloadInfo *));
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static int DownloadInit _ArgProto((ChimeraSink, void *));
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static void DownloadAdd _ArgProto((void *));
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static void DownloadEnd _ArgProto((void *));
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static void DownloadMessage _ArgProto((void *, char *));
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/*
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* DownloadDestroy
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*/
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static void
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DownloadDestroy(di)
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DownloadInfo *di;
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{
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ChimeraResources cres = di->cres;
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if (di->pop != NULL) XtDestroyWidget(di->pop);
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if (di->wp != NULL) SinkDestroy(di->wp);
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MPDestroy(di->mp);
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ChimeraRemoveReference(cres);
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return;
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}
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/*
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* DownloadClear
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*/
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static void
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DownloadClear(w, cldata, cbdata)
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Widget w;
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XtPointer cldata, cbdata;
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{
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DownloadInfo *di = (DownloadInfo *)cldata;
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MyDialogSetValue(di->dialog, "");
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XtVaSetValues(di->ok, XtNsensitive, True, NULL);
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di->okd = false;
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return;
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}
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/*
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* DownloadDSave
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*/
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static void
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DownloadDSave(w, cldata, cbdata)
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Widget w;
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XtPointer cldata, cbdata;
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{
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DownloadDestroy((DownloadInfo *)cldata);
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return;
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}
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/*
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* SaveTask
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*/
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static void
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SaveTask(closure)
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void *closure;
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{
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char *filename;
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byte *data;
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size_t len;
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MIMEHeader mh;
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FILE *fp;
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DownloadInfo *di = (DownloadInfo *)closure;
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if ((filename = MyDialogGetValue(di->dialog)) == NULL)
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{
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XBell(di->cres->dpy, 100);
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XtVaSetValues(di->ok, XtNsensitive, True, NULL);
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di->okd = false;
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di->wt = NULL;
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return;
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}
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filename = FixPath(di->mp, filename);
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if ((fp = fopen(filename, "w")) == NULL)
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{
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XBell(di->cres->dpy, 100);
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XtVaSetValues(di->ok, XtNsensitive, True, NULL);
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di->okd = false;
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di->wt = NULL;
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MyDialogSetValue(di->dialog, di->filename);
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return;
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}
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SinkGetData(di->wp, &data, &len, &mh);
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fwrite(data, 1, len, fp);
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fclose(fp);
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DownloadDestroy(di);
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return;
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}
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/*
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* DoSaveTask
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*/
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static void
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DoSaveTask(di)
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DownloadInfo *di;
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{
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myassert(di->wt == NULL, "Save task already started.");
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di->wt = TaskSchedule(di->cres, SaveTask, di);
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return;
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}
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/*
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* DownloadOSave
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*/
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static void
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DownloadOSave(w, cldata, cbdata)
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Widget w;
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XtPointer cldata, cbdata;
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{
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DownloadInfo *di = (DownloadInfo *)cldata;
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if (di->okd) return;
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if (di->ended) DoSaveTask(di);
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else
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{
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di->okd = true;
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XtVaSetValues(di->ok, XtNsensitive, False, NULL);
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}
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return;
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}
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static void
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DownloadMakePop(di)
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DownloadInfo *di;
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{
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Window rw, cw;
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int rx, ry, wx, wy;
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unsigned int mask;
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XQueryPointer(di->cres->dpy, DefaultRootWindow(di->cres->dpy),
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&rw, &cw,
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&rx, &ry,
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&wx, &wy,
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&mask);
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di->pop = XtVaAppCreateShell("download", "Download",
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transientShellWidgetClass, di->cres->dpy,
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XtNx, rx - 2,
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XtNy, ry - 2,
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NULL);
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di->dialog = XtVaCreateManagedWidget("dialog",
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mydialogWidgetClass, di->pop,
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NULL);
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di->ok = MyDialogAddButton(di->dialog, "ok", DownloadOSave, di);
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MyDialogAddButton(di->dialog, "Clear", DownloadClear, di);
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MyDialogAddButton(di->dialog, "dismiss", DownloadDSave, di);
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XtAddCallback(di->dialog, XtNcallback, DownloadOSave, di);
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XtRealizeWidget(di->pop);
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MyDialogSetValue(di->dialog, di->filename);
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return;
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}
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/*
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* DownloadAdd
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*/
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void
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DownloadAdd(closure)
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void *closure;
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{
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return;
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}
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/*
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* DownloadEnd
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*/
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void
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DownloadEnd(closure)
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void *closure;
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{
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DownloadInfo *di = (DownloadInfo *)closure;
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di->ended = true;
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if (di->okd) DoSaveTask(di);
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return;
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}
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/*
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* DownloadMessage
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*/
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void
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DownloadMessage(closure, message)
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void *closure;
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char *message;
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{
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DownloadInfo *di = (DownloadInfo *)closure;
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if (di->dialog != NULL) MyDialogSetMessage(di->dialog, message);
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return;
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}
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/*
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* DownloadInit
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*/
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static int
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DownloadInit(wp, closure)
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ChimeraSink wp;
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void *closure;
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{
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return(0);
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}
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void
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DownloadOpen(cres, wr)
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ChimeraResources cres;
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ChimeraRequest *wr;
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{
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DownloadInfo *di;
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MemPool mp;
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ChimeraSinkHooks hooks;
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char *filename;
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myassert(wr != NULL, "NULL request not allowed.");
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mp = MPCreate();
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di = (DownloadInfo *)MPCGet(mp, sizeof(DownloadInfo));
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di->mp = mp;
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if ((filename = GetBaseFilename(wr->url)) == NULL) filename = "";
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di->filename = MPStrDup(di->mp, filename);
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di->cres = cres;
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memset(&hooks, 0, sizeof(hooks));
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hooks.init = DownloadInit;
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hooks.add = DownloadAdd;
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hooks.end = DownloadEnd;
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hooks.message = DownloadMessage;
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ChimeraAddReference(cres);
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if ((di->wp = SinkCreate(cres, wr)) != NULL)
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{
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SinkSetHooks(di->wp, &hooks, di);
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DownloadMakePop(di);
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}
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else
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{
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DownloadDestroy(di);
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RequestDestroy(wr);
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}
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return;
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}
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