diff options
| -rw-r--r-- | doc/todo/calendar_--_archive_browsing_via_a_calendar_frontend.mdwn | 573 |
1 files changed, 7 insertions, 566 deletions
diff --git a/doc/todo/calendar_--_archive_browsing_via_a_calendar_frontend.mdwn b/doc/todo/calendar_--_archive_browsing_via_a_calendar_frontend.mdwn index 1ea0567aa..6fd9fb1cf 100644 --- a/doc/todo/calendar_--_archive_browsing_via_a_calendar_frontend.mdwn +++ b/doc/todo/calendar_--_archive_browsing_via_a_calendar_frontend.mdwn @@ -35,569 +35,14 @@ ManojSrivastava Since this is a little bit er, stalled, I'll post here the stuff Manoj mailed me, and my response to it. --[[Joey]] +> > I'm sending in an updated package, and have removed the older version you had here.--ManojSrivastava [[tag patch]] -<pre> -#! /usr/bin/perl -# -*- Mode: Cperl -*- -# calendar.pm --- -# Author : Manoj Srivastava ( srivasta@glaurung.internal.golden-gryphon.com ) -# Created On : Fri Dec 8 16:05:48 2006 -# Created On Node : glaurung.internal.golden-gryphon.com -# Last Modified By : Manoj Srivastava -# Last Modified On : Sun Dec 10 01:53:22 2006 -# Last Machine Used: glaurung.internal.golden-gryphon.com -# Update Count : 139 -# Status : Unknown, Use with caution! -# HISTORY : -# Description : -# -# arch-tag: 2aa737c7-3d62-4918-aaeb-fd85b4b1384c -# -# Copyright (c) 2006 Manoj Srivastava <srivasta@debian.org> -# -# 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; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -# - -require 5.002; -package IkiWiki::Plugin::calendar; - -use warnings; -use strict; -use IkiWiki '1.00'; -use Time::Local; - -our $VERSION = "0.1"; -my $file = __FILE__; - -my %calpages; -my %cache; -my %linkcache; - -my $index=1; -my @now=localtime(); - -=head1 NAME - -calendar - Add links for the current month's, current year's, and older archived postings - -=cut - -=head1 SYNOPSIS - -To invoke the calendar, just use the preprocessor directive (options -and variations are detailed below): - - [[calendar ]] - -or - - [[calendar type="month" pages="blog/* and !*/Discussion"]] - -or - - [[calendar type="year" year="2005" pages="blog/* and !*/Discussion"]] - -=cut - - -=head1 DESCRIPTION - -This plugin is inspired by the calendar plugin for Blosxom, but -derives no code from it. This plugin is essentially a fancy front end -to archives of previous pages, usually used for blogs. It can produce -a calendar for a given month, or a list of months for a given year. - -The year and month entities in the out put have links to archive index -pages, which are supposed to exist already. The idea is to create an -archives hierarchy, rooted in the subdirectory specified in the -site wide customization variable, I<archivebase>. I<archivebase> -defaults to C<archives>. Links are created to pages -C<$archivebase/$year> and C<$archivebase/$year/$month>. If one creates -annual and monthly indices, for example, by using something like this -sample from my I<archives/2006/01.mdwn> (warning: line split for -readability): - - \[[meta title="Archives for 2006/01"]] - \[[inline rootpage="blog" atom="no" rss="no" show="0" - pages="blog/* and !*/Discussion and creation_year(2006) - and creation_month(01)" - ]] - -=cut - -=head1 OPTIONS - -=over - -=item B<type> - -Used to specify the type of calendar wanted. Can be one of C<month> or -C<year>. The default is a month view calendar. - -=item B<pages> - -Specifies the C<pagespec> used to get pages to match for -linking. Usually this should be something like C<blog/* and !*/Discussion>. -Defaults to C<*>. - -=item B<year> - -The year for which the calendar is requested. Defaults to the current year. - -=item B<month> - -The numeric month for which the calendar is requested, in the range -1..12. Used only for the month view calendar, and defaults to the -current month. - -=item B<week_start_day> - -A number, in the range 0..6, which represents the day of the week that -the month calendar starts with. 0 is Sunday, 1 is Monday, and so -on. Defaults to 0, which is Sunday. - -=item B<months_per_row> - -In the annual calendar, number of months to place in each row. Defaults to 3. - -=back - -=cut - -=head1 Classes for CSS control - -The output is liberally sprinkled with classes, for fine grained CSS -customization. - -=over - -=item C<month-calendar> - -The month calendar as a whole - -=item C<month-calendar-head> - -The head of the month calendar (ie,"March"), localized to the environment. - -=item C<month-calendar-day-head> - -A column head in the month calendar (ie, a day-of-week abbreviation), -localized. - -=item C<month-calendar-day-noday>, C<month-calendar-day-link>, - C<month-calendar-day-nolink>, C<month-calendar-day-future>, - C<month-calendar-day-this-day> - -The day squares on the month calendar, for days that don't exist -(before or after the month itself), that don't have stories, that do -have stories, that are in the future, or are that currently selected, -respectively (today). - -=item Day-of-week-name - -Each day square is also given a class matching its day of week, this -can be used to high light weekends. This is also localized. - -=item C<year-calendar> - -The year calendar as a whole - -=item C<year-calendar-head> - -The head of the year calendar (ie, "2006") - -=item C<year-calendar-subhead> - -For example, "Months" - -=item C<year-calendar-month-link>, C<year-calendar-month-nolink>, - C<year-calendar-month-future>, C<year-calendar-this-month> - -The month squares on the year calendar, for months with stories, -without, in the future, and currently selected, respectively. - -=back - -=cut - - -sub import { - hook(type => "preprocess", id => "calendar", call => \&preprocess); - hook(type => "format", id => "calendar", call => \&format); -} - -sub preprocess (@) { - my %params=@_; - $params{pages} = "*" unless defined $params{pages}; - $params{type} = "month" unless defined $params{type}; - $params{year} = 1900 + $now[5] unless defined $params{year}; - $params{month} = sprintf("%02d", $params{month}) if defined $params{month}; - $params{month} = 1 + $now[4] unless defined $params{month}; - $params{week_start_day} = 0 unless defined $params{week_start_day}; - $params{months_per_row} = 3 unless defined $params{months_per_row}; - - # Store parameters (could be multiple calls per page) - $calpages{$params{destpage}}{$index} = \%params; - - return "\n<div class=\"calendar\">" . $index++ . "</div><!-- calendar -->\n"; -} - -sub is_leap_year (@) { - my %params=@_; - return ($params{year} % 4 == 0 && (($params{year} % 100 != 0) || $params{year} % 400 ==0)) ; -} - - -sub month_days { - my %params=@_; - my $days_in_month = (31,28,31,30,31,30,31,31,30,31,30,31)[$params{month}-1]; - if ($params{month} == 2 && is_leap_year(%params)) { - $days_in_month++; - } - return $days_in_month; -} - - -sub format_month (@) { - my %params=@_; - my $pagespec = $params{pages}; - my $year = $params{year}; - my $month = $params{month}; - - my $calendar="\n"; - - # When did this month start? - my @monthstart = localtime(timelocal(0,0,0,1,$month-1,$year-1900)); - - my $future_dom = 0; - my $today = 0; - $future_dom = $now[3]+1 if ($year == $now[5]+1900 && $month == $now[4]+1); - $today = $now[3] if ($year == $now[5]+1900 && $month == $now[4]+1); - - # Calculate month names for next month, and previous months - my $pmonth = $month - 1; - my $nmonth = $month + 1; - my $pyear = $year; - my $nyear = $year; - - # Adjust for January and December - if ($month == 1) { $pmonth = 12; $pyear--; } - if ($month == 12) { $nmonth = 1; $nyear++; } - - # Find out month names for this, next, and previous months - my $monthname=POSIX::strftime("%B", @monthstart); - my $pmonthname= - POSIX::strftime("%B", localtime(timelocal(0,0,0,1,$pmonth-1,$pyear-1900))); - my $nmonthname= - POSIX::strftime("%B", localtime(timelocal(0,0,0,1,$nmonth-1,$nyear-1900))); - - # Calculate URL's for monthly archives, and article counts - my $archivebase = 'archives'; - $archivebase = $config{archivebase} if defined $config{archivebase}; - - my ($url, $purl, $nurl)=("$monthname",'',''); - my ($count, $pcount, $ncount) = (0,0,0); - - if (exists $cache{$pagespec}{"$year/$month"}) { - $url = htmllink($params{page}, $params{destpage}, - "$archivebase/$year/" . sprintf("%02d", $month), - 0,0," $monthname "); - } - - if (exists $cache{$pagespec}{"$pyear/$pmonth"}) { - $purl = htmllink($params{page}, $params{destpage}, - "$archivebase/$pyear/" . sprintf("%02d", $pmonth), - 0,0," $pmonthname "); - } - if (exists $cache{$pagespec}{"$nyear/$nmonth"}) { - $nurl = htmllink($params{page}, $params{destpage}, - "$archivebase/$nyear/" . sprintf("%02d", $nmonth), - 0,0," $nmonthname "); - } - - # Start producing the month calendar - $calendar=<<EOF; -<table class="month-calendar"> - <caption class="month-calendar-head"> - $purl - $url - $nurl - </caption> - <tr> -EOF - # Suppose we want to start the week with day $week_start_day - # If $monthstart[6] == 1 - my $week_start_day = $params{week_start_day}; - - my $start_day = 1 + (7 - $monthstart[6] + $week_start_day) % 7; - my %downame; - my %dowabbr; - for my $dow ($week_start_day..$week_start_day+6) { - my @day=localtime(timelocal(0,0,0,$start_day++,$month-1,$year-1900)); - my $downame = POSIX::strftime("%A", @day); - my $dowabbr = POSIX::strftime("%a", @day); - $downame{$dow % 7}=$downame; - $dowabbr{$dow % 7}=$dowabbr; - $calendar.= - qq{ <th class="month-calendar-day-head $downame">$dowabbr</th>\n}; - } - - $calendar.=<<EOF; - </tr> -EOF - - my $wday; - # we start with a week_start_day, and skip until we get to the first - for ($wday=$week_start_day; $wday != $monthstart[6]; $wday++, $wday %= 7) { - $calendar.=qq{ <tr>\n} if $wday == $week_start_day; - $calendar.= - qq{ <td class="month-calendar-day-noday $downame{$wday}"> </td>\n}; - } - - # At this point, either the first is a week_start_day, in which case nothing - # has been printed, or else we are in the middle of a row. - for (my $day = 1; $day <= month_days(year => $year, month => $month); - $day++, $wday++, $wday %= 7) { - # At tihs point, on a week_start_day, we close out a row, and start a new - # one -- unless it is week_start_day on the first, where we do not close a - # row -- since none was started. - if ($wday == $week_start_day) { - $calendar.=qq{ </tr>\n} unless $day == 1; - $calendar.=qq{ <tr>\n}; - } - my $tag; - my $mtag = sprintf("%02d", $month); - if (defined $cache{$pagespec}{"$year/$mtag/$day"}) { - if ($day == $today) { $tag='month-calendar-day-this-day'; } - else { $tag='month-calendar-day-link'; } - $calendar.=qq{ <td class="$tag $downame{$wday}">}; - $calendar.= - htmllink($params{page}, $params{destpage}, - pagename($linkcache{"$year/$mtag/$day"}), - 0,0,"$day"); - $calendar.=qq{</td>\n}; - } - else { - if ($day == $today) { $tag='month-calendar-day-this-day'; } - elsif ($day == $future_dom) { $tag='month-calendar-day-future'; } - else { $tag='month-calendar-day-nolink'; } - $calendar.=qq{ <td class="$tag $downame{$wday}">$day</td>\n}; - } - } - # finish off the week - for (; $wday != $week_start_day; $wday++, $wday %= 7) { - $calendar.=qq{ <td class="month-calendar-day-noday $downame{$wday}"> </td>\n}; - } - $calendar.=<<EOF; - </tr> -</table> -EOF - - return $calendar; -} - -sub format_year (@) { - my %params=@_; - my $pagespec = $params{pages}; - my $year = $params{year}; - my $month = $params{month}; - my $calendar="\n"; - my $pyear = $year - 1; - my $nyear = $year + 1; - my $future_month = 0; - $future_month = $now[4]+1 if ($year == $now[5]+1900); - - # calculate URL's for previous and next years - my $archivebase = 'archives'; - $archivebase = $config{archivebase} if defined $config{archivebase}; - my ($url, $purl, $nurl)=("$year",'',''); - if (exists $cache{$pagespec}{"$year"}) { - $url = htmllink($params{page}, $params{destpage}, - "$archivebase/$year", - 0,0,"$year"); - } - - if (exists $cache{$pagespec}{"$pyear"}) { - $purl = htmllink($params{page}, $params{destpage}, - "$archivebase/$pyear", - 0,0,"\←"); - } - if (exists $cache{$pagespec}{"$nyear"}) { - $nurl = htmllink($params{page}, $params{destpage}, - "$archivebase/$nyear", - 0,0,"\→"); - } - # Start producing the year calendar - $calendar=<<EOF; -<table class="year-calendar"> - <caption class="year-calendar-head"> - $purl - $url - $nurl - </caption> - <tr> - <th class="year-calendar-subhead" colspan="$params{months_per_row}">Months</th> - </tr> -EOF - - for ($month = 1; $month <= 12; $month++) { - my @day=localtime(timelocal(0,0,0,15,$month-1,$year-1900)); - my $murl; - my $monthname = POSIX::strftime("%B", @day); - my $monthabbr = POSIX::strftime("%b", @day); - $calendar.=qq{ <tr>\n} if ($month % $params{months_per_row} == 1); - my $tag; - my $mtag=sprintf("%02d", $month); - if ($month == $params{month}) { - if ($cache{$pagespec}{"$year/$mtag"}) {$tag = 'this_month_link'} - else {$tag = 'this_month_nolink'} - } - elsif ($cache{$pagespec}{"$year/$mtag"}) {$tag = 'month_link'} - elsif ($future_month && $month >=$future_month){$tag = 'month_future'} - else {$tag = 'month_nolink'} - if ($cache{$pagespec}{"$year/$mtag"}) { - $murl = htmllink($params{page}, $params{destpage}, - "$archivebase/$year/$mtag", - 0,0,"$monthabbr"); - $calendar.=qq{ <td class="$tag">}; - $calendar.=$murl; - $calendar.=qq{</td>\n}; - } - else { - $calendar.=qq{ <td class="$tag">$monthabbr</td>\n}; - } - $calendar.=qq{ </tr>\n} if ($month % $params{months_per_row} == 0); - } - $calendar.=<<EOF; -</table> -EOF - - return $calendar; -} - - -sub format (@) { - my %params=@_; - my $content=$params{content}; - return $content unless exists $calpages{$params{page}}; - - # Restore parameters for each invocation - foreach my $index (keys %{$calpages{$params{page}}}) { - my $calendar="\n"; - my %saved = %{$calpages{$params{page}}{$index}}; - my $pagespec=$saved{pages}; - - if (! defined $cache{$pagespec}) { - for my $page (sort keys %pagesources) { - next unless pagespec_match($page,$pagespec); - my $mtime; - my $src = $pagesources{$page}; - if (! exists $IkiWiki::pagectime{$page}) { - $mtime=(stat(srcfile($src)))[9]; - } - else { - $mtime=$IkiWiki::pagectime{$page} - } - my @date = localtime($mtime); - my $mday = $date[3]; - my $month = $date[4] + 1; - my $year = $date[5] + 1900; - my $mtag = sprintf("%02d", $month); - $linkcache{"$year/$mtag/$mday"} = "$src"; - $cache{$pagespec}{"$year"}++; - $cache{$pagespec}{"$year/$mtag"}++; - $cache{$pagespec}{"$year/$mtag/$mday"}++; - } - } - # So, we have cached data for the current pagespec at this point - if ($saved{type} =~ /month/i) { - $calendar=format_month(%saved); - } - elsif ($saved{type} =~ /year/i) { - $calendar=format_year(%saved); - } - $content =~ s/(<div class=\"calendar\">\s*.?\s*$index\b)/<div class=\"calendar\">$calendar/ms; - } - return $content; -} - - - -=head1 CAVEATS - -In the month calendar, for days in which there is more than one -posting, the link created randomly selects one of them. Since there is -no easy way in B<IkiWiki> to automatically generate index pages, and -pregenerating daily index pages seems too much of an overhead, we have -to live with this. All postings can still be viewed in the monthly or -annual indices, of course. This can be an issue for very prolific -scriveners. - -=cut - -=head1 BUGS - -None Known so far. - -=head1 BUGS - -Since B<IkiWiki> eval's the configuration file, the values have to all -on a single physical line. This is the reason we need to use strings -and eval, instead of just passing in real anonymous sub references, -since the eval pass converts the coderef into a string of the form -"(CODE 12de345657)" which can't be dereferenced. - -=cut - -=head1 AUTHOR - -Manoj Srivastava <srivasta@debian.org> - -=head1 COPYRIGHT AND LICENSE - -This script is a part of the Devotee package, and is - -Copyright (c) 2002 Manoj Srivastava <srivasta@debian.org> - -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; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - -=cut - -1; - -__END__ -</pre> - ------- +---- -I've been looking over the calendar plugin. Some items: +'ve been looking over the calendar plugin. Some items: * Why did you need to use a two-stage generation with a format hook? That approach should only be needed if adding something to a page that @@ -663,19 +108,15 @@ I've been looking over the calendar plugin. Some items: ---- - And that's all I've heard so far. Hoping I didn't miss another patch? --[[Joey]] -No, you did not. But I am back to hacking on this, and I think I have discovered a major problem with my approach. One of the problems with the current plugin is that the goal of a calendar is to create a calendar, either a month or year based on, that provides links to blogs for all the days in (for the month calendar), and all the months (in a year calendar) in which there have been blog postings. For the monthly calendar, it needs to know the previous and next months where there is a posting, and for the year calendar, it needs to know which of the previous (next) years had entries. - -Now, this means that it needs to know about at _all_ pages that meet the pagespec, and stash that information, before it begins generating the calandar in question, in order to calculate how to create the symlinks. And, of course, all pages that have calendars on them might need to change anytime a page that meets the pagespec is added; and again at midnight, when the current day changes. +>No, you did not. But I am back to hacking on this, and I think I have discovered a major problem with my approach. One of the problems with the current plugin is that the goal of a calendar is to create a calendar, either a month >or year based on, that provides links to blogs for all the days in (for the month calendar), and all the months (in a year calendar) in which there have been blog postings. For the monthly calendar, it needs to know the previous >and next months where there is a posting, and for the year calendar, it needs to know which of the previous (next) years had entries. -keys %IkiWiki::pagectime followed by pagespec_match would probably do the trick -- +>Now, this means that it needs to know about at _all_ pages that meet the pagespec, and stash that information, before it begins generating the calandar in question, in order to calculate how to create the symlinks. And, of >course, all pages that have calendars on them might need to change anytime a page that meets the pagespec is added; and again at midnight, when the current day changes. - @Interesting = grep (pagespec_match($_,$pagespec), keys %IkiWiki::pagectime); +>> I think I have solved the ""Need to look at all pages that match the spec"" issue; but the nightly rebuild to handle the current day changing still remain. I use cron. It is now, however, richly documented :) -When is the %IkiWiki::pagectime hash created? Can it be used in the preprocess hook? ---[[ManojSrivastava]]
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