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// view_changelog.cc
//
// Copyright (C) 2004-2005 Daniel Burrows
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
#include <vscreen/config/colors.h>
#include <vscreen/config/keybindings.h>
#include <vscreen/transcode.h>
#include <vscreen/vs_pager.h>
#include <vscreen/vs_scrollbar.h>
#include <vscreen/vs_table.h>
#include <vscreen/vs_text_layout.h>
#include "changelog_parse.h"
#include "download_bar.h"
#include "menu_redirect.h"
#include "menu_text_layout.h"
#include "ui.h"
#include "ui_download_manager.h"
#include <generic/apt/apt.h>
#include <generic/apt/pkg_changelog.h>
#include <generic/apt/config_signal.h>
#include <generic/apt/download_signal_log.h>
#include <generic/util/util.h>
#include <sigc++/adaptors/bind.h>
#include <sigc++/functors/mem_fun.h>
using namespace std;
class pkg_changelog_screen : public vs_file_pager, public menu_redirect
{
bool last_search_forwards;
void do_search()
{
last_search_forwards = true;
prompt_string(transcode(_("Search for: ")),
L"",
arg(sigc::mem_fun(*this, &vs_pager::search_for)),
NULL,
NULL,
NULL);
}
void do_search_back()
{
last_search_forwards = false;
prompt_string(transcode(_("Search backwards for: ")),
L"",
arg(sigc::mem_fun(*this, &vs_pager::search_back_for)),
NULL,
NULL,
NULL);
}
void do_repeat_search()
{
if(last_search_forwards)
search_for(L"");
else
search_back_for(L"");
}
protected:
pkg_changelog_screen(const temp::name &filename,
int x = 0, int y = 0,
int width = 0, int height = 0):
vs_file_pager(filename.get_name()), last_search_forwards(true)
{
connect_key("Search", &global_bindings,
sigc::mem_fun(*this, &pkg_changelog_screen::do_search));
connect_key("SearchBack", &global_bindings,
sigc::mem_fun(*this, &pkg_changelog_screen::do_search_back));
connect_key("ReSearch", &global_bindings,
sigc::mem_fun(*this, &pkg_changelog_screen::do_repeat_search));
}
public:
static ref_ptr<pkg_changelog_screen>
create(const temp::name &filename,
int x = 0, int y = 0, int width = 0, int height = 0)
{
ref_ptr<pkg_changelog_screen>
rval(new pkg_changelog_screen(filename, x, y, width, height));
rval->decref();
return rval;
}
bool find_search_enabled()
{
return true;
}
bool find_search()
{
do_search();
return true;
}
bool find_search_back_enabled()
{
return true;
}
bool find_search_back()
{
do_search_back();
return true;
}
bool find_research_enabled()
{
return !get_last_search().empty();
}
bool find_research()
{
do_repeat_search();
return true;
}
};
typedef ref_ptr<pkg_changelog_screen> pkg_changelog_screen_ref;
static void do_view_changelog(temp::name n,
string pkgname,
string curverstr)
{
string menulabel =
ssprintf(_("ChangeLog of %s"), pkgname.c_str());
string tablabel = ssprintf(_("%s changes"), pkgname.c_str());
string desclabel = _("View the list of changes made to this Debian package.");
fragment *f = make_changelog_fragment(n, curverstr);
vs_table_ref t = vs_table::create();
if(f != NULL)
{
vs_scrollbar_ref s = vs_scrollbar::create(vs_scrollbar::VERTICAL);
menu_text_layout_ref l = menu_text_layout::create();
l->location_changed.connect(sigc::mem_fun(s.unsafe_get_ref(), &vs_scrollbar::set_slider));
s->scrollbar_interaction.connect(sigc::mem_fun(l.unsafe_get_ref(), &vs_text_layout::scroll));
l->set_fragment(f);
t->add_widget_opts(l, 0, 0, 1, 1,
vs_table::EXPAND|vs_table::SHRINK, vs_table::EXPAND);
t->add_widget_opts(s, 0, 1, 1, 1, 0,
vs_table::EXPAND | vs_table::FILL);
create_menu_bindings(l.unsafe_get_ref(), t);
}
else
{
pkg_changelog_screen_ref cs = pkg_changelog_screen::create(n);
vs_scrollbar_ref s = vs_scrollbar::create(vs_scrollbar::VERTICAL);
cs->line_changed.connect(sigc::mem_fun(s.unsafe_get_ref(), &vs_scrollbar::set_slider));
s->scrollbar_interaction.connect(sigc::mem_fun(cs.unsafe_get_ref(), &pkg_changelog_screen::scroll_page));
cs->scroll_top();
t->add_widget_opts(cs, 0, 0, 1, 1,
vs_table::EXPAND|vs_table::SHRINK, vs_table::EXPAND);
t->add_widget_opts(s, 0, 1, 1, 1, 0,
vs_table::EXPAND | vs_table::FILL);
create_menu_bindings(cs.unsafe_get_ref(), t);
}
t->show_all();
insert_main_widget(t, menulabel, desclabel, tablabel);
}
void view_changelog(pkgCache::VerIterator ver)
{
bool in_debian=false;
string pkgname = ver.ParentPkg().Name();
pkgCache::VerIterator curver = ver.ParentPkg().CurrentVer();
string curverstr;
if(!curver.end() && curver.VerStr() != NULL)
curverstr = curver.VerStr();
// TODO: add a configurable association between origins and changelog URLs.
for(pkgCache::VerFileIterator vf=ver.FileList();
!vf.end() && !in_debian; ++vf)
if(!vf.File().end() && vf.File().Origin()!=NULL &&
strcmp(vf.File().Origin(), "Debian")==0)
in_debian=true;
if(!in_debian)
{
show_message(_("You can only view changelogs of official Debian packages."),
NULL, get_style("Error"));
return;
}
download_manager *manager = get_changelog(ver,
sigc::bind(sigc::ptr_fun(&do_view_changelog), pkgname, curverstr));
if(manager != NULL)
(new ui_download_manager(manager, true, false, false,
_("Downloading Changelog"),
_(""),
_("Download Changelog")))->start();
}
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