# googlemapper.pl
# Get and retreive maps from Google
# by Kyrre Baker
# http://kyrrebaker.com/2007/03/googlemapper_for_movable_type/

# V 1.8 ~ 10.01.2008
## Minor cleanup in code

# V 1.7 ~ 09.01.2008
## Added the resource <$MTGoogleMapperLatLon$> for displaying the position

# V 1.6 ~ 20.12.2007
## Added the resource <$MTGoogleMapperZoomLevel$> for displaying the zoom level
## Added the resource <$MTGoogleMapperMaptype$> for displaying the maptype
## Changed the default zoom level from 3 to 12
## Minor cleanup in code

# V 1.5 ~ 04.04.2007
## Minor cleanup in code

# V 1.4 ~ 03.04.2007
## Added the resource <$MTGoogleMapperHeadJS$> for creating the html/header JavaScript
## Minor cleanup in code
## Fixed the "context"- bug

# V 1.3 ~ 02.04.2007
## Added the resource <$MTGoogleMapperApiKey$> for displaying the API-Key
## Added the resource <$MTGoogleMapperVersion$> for displaying the plugin- version
## Killed the Scope for unique blogs and went back to a system wide setting

# V 1.2 ~ 02.04.2007
## Added the Scope for unique blogs
## Minor cleanup in code

# V 1.1 ~ 01.04.2007
## Changed the datafield from "excerpt" to "keywords"
## Made some minor ajustments to the CMS / settings pane

use strict;
package MT::Plugin::GoogleMapper;

use vars qw( $VERSION );
$VERSION = '1.8';

my $plugin_key = 'GoogleMapper';

require MT::Template::Context;
require MT::Plugin;
require MT;

# Invoke the plugin
my $plugin = MT::Plugin->new({
	name => $plugin_key,
	description => 'Get and retreive maps from Google',
	doc_link => 'http://kyrrebaker.com/arkiv/2007/03/googlemapper_for_movable_type/',
	author_name => 'Kyrre Baker',
	author_link => 'http://kyrrebaker.com/',
	version => $VERSION,
	system_config_template => \&_system_config_template,
	settings => new MT::PluginSettings([
		['googlemaps_api_key', { Default => '', Scope => 'system' }],
		['googlemaps_maptype', { Default => 'G_NORMAL_MAP', Scope => 'system' }],
		['googlemaps_zoomlevel', { Default => '12', Scope => 'system' }],
		['googlemaps_latlon', { Default => '60, -25', Scope => 'system' }]
	])
});
MT->add_plugin($plugin);

# Add tags and templates
MT::Template::Context->add_tag(GoogleMapperApiKey => \&_apikey);
MT::Template::Context->add_tag(GoogleMapperHeadJS => \&_headerjs);
MT::Template::Context->add_tag(GoogleMapperVersion => \&_version);
MT::Template::Context->add_tag(GoogleMapperMaptype => \&_maptype);
MT::Template::Context->add_tag(GoogleMapperZoomLevel => \&_zoomlevel);
MT::Template::Context->add_tag(GoogleMapperLatLon => \&_latlon);
MT->add_callback('bigpapi::template::edit_entry', 9, $plugin, \&_googlemapapi);

# Get config
my $config = $plugin->get_config_hash('system');
my $googlemaps_api_key = $config->{googlemaps_api_key};
my $googlemaps_maptype = $config->{googlemaps_maptype};
my $googlemaps_zoomlevel = $config->{googlemaps_zoomlevel};
my $googlemaps_latlon = $config->{googlemaps_latlon};

# Returns the API-Key <$MTGoogleMapperApiKey$>
sub _apikey {
	return $googlemaps_api_key;
}

# Returns the plugin version <$MTGoogleMapperVersion$>
sub _version {
	return $VERSION;
}

# Returns the default position <$MTGoogleMapperLatLon$>
sub _latlon {
	return $googlemaps_latlon;
}

# Returns the default zoom level <$MTGoogleMapperZoomLevel$>
sub _zoomlevel {
    return $googlemaps_zoomlevel;
}

# Returns the default map type <$MTGoogleMapperMaptype$>
sub _maptype {
    return $googlemaps_maptype;
}

# Creates the headerinfo that's needed by Google Map <$MTGoogleMapperHeadJS$>
sub _headerjs {
	return '<script src="http://maps.google.com/maps?file=api&amp;v=2.x&amp;key='.$googlemaps_api_key.'" type="text/javascript"></script>';
}

# Change the CMS / API
sub _googlemapapi {
	my ($ctx, $app, $template) = @_;
	my $old = qq{<TMPL_IF NAME=DISP_PREFS_SHOW_KEYWORDS>};
	$old = quotemeta($old);
	my $new = <<HTML;
	<TMPL_IF NAME=DISP_PREFS_SHOW_KEYWORDS>
	<script src="http://maps.google.com/maps?file=api&amp;v=2.x&amp;key=$googlemaps_api_key" type="text/javascript"></script>
	<div id="map" style="margin: 20px 0; width: 577px; height: 300px; border: 1px solid #000;">
	<script type="text/javascript">
	//<![CDATA[
	if (GBrowserIsCompatible()) {
		var map = new GMap2(document.getElementById('map'));
		map.addControl(new GMapTypeControl());
		map.addControl(new GLargeMapControl());
		var center = new GLatLng($googlemaps_latlon);
		map.setCenter(center, $googlemaps_zoomlevel);
		map.setMapType($googlemaps_maptype);		
		var marker = new GMarker(center, {draggable: true});
		GEvent.addListener(marker, 'dragend', function() {
			var newpoint = marker.getPoint();
			map.setCenter(newpoint);
			document.getElementById("keywords").innerHTML = newpoint.lat() + ", " + newpoint.lng();	
		});
		map.enableDoubleClickZoom();
		map.addOverlay(marker);
	}
	//]]>
	</script>
	</div>
HTML
$$template =~ s/$old/$new/;
}

# System settings panel
sub _system_config_template {
return <<HTML;
	<p><strong>API-Settings</strong></p>
	<div class="setting">
	<div class="label">
	<label for="googlemaps_api_key"><MT_TRANS phrase="API-Key:"></label>
	</div>
	<div class="field">
	<p><input value="<TMPL_VAR NAME=googlemaps_api_key>" type="text" name="googlemaps_api_key" id="googlemaps_api_key" style="width:350px;" /><br />
	<MT_TRANS phrase="Your Google Map <a href='http://www.google.com/apis/maps/signup.html'>API-Key</a>"></p>
	</div>
	</div>
	<p><strong>Map-Settings</strong></p>
	<div class="setting">
	<div class="label">
	<label for="googlemaps_maptype"><MT_TRANS phrase="Map type:"></label>
	</div>
	<div class="field">
	<p><input value="<TMPL_VAR NAME=googlemaps_maptype>" type="text" name="googlemaps_maptype" id="googlemaps_maptype" style="width:350px;" /><br />
	<MT_TRANS phrase="The default map type"></p>
	</div> 
	<div class="label">
	<label for="googlemaps_zoomlevel"><MT_TRANS phrase="Zoom level:"></label>
	</div>
	<div class="field">
	<p><input value="<TMPL_VAR NAME=googlemaps_zoomlevel>" type="text" name="googlemaps_zoomlevel" id="googlemaps_zoomlevel" style="width:350px;" /><br />
	<MT_TRANS phrase="The default zoom-level"></p>
	</div> 
	<div class="label">
	<label for="googlemaps_latlon"><MT_TRANS phrase="Lat/Long:"></label>
	</div>
	<div class="field">
	<p><input value="<TMPL_VAR NAME=googlemaps_latlon>" type="text" name="googlemaps_latlon" id="googlemaps_latlon" style="width:350px;" /><br />
	<MT_TRANS phrase="The default latitude and longitude for centering the map"></p>
	</div>
	</div>
HTML
}

# Stupid Perl
1;