Date Picker Plugin

Read the Mishoo documentation or visit the demo page for detailed information on using the calendar widget.

This plugin includes the following function to make using the calendar easier from other TWiki plugins:

renderForEdit

TWiki::Plugins::DatePickerPlugin::renderForEdit( $name, $value, $format [, \%options] ) -> $html

This is the simplest way to use calendars from a plugin.

• $name is the name of the CGI parameter for the calendar (it should be unique),
• $value is the current value of the parameter (may be undef)
• $format is the format to use (optional; the default is set in configure). The HTML returned will display a date field and a drop-down calendar.
• \%options is an optional hash containing base options for the textfield.

Notes:

• The CSS and Javascript are added if needed, e.g. the addToHEAD() function does not need to be called.
• No output is shown if $name is empty or undef, but the CSS and Javascript are loaded if needed. This can be used to preload the CSS and Javascript with a parameterless %DATEPICKER{}% variable.

Example:

use TWiki::Plugins::DatePickerPlugin;
...
my $fromDate = TWiki::Plugins::DatePickerPlugin::renderForEdit(
   'from', '2012-12-31');
my $toDate = TWiki::Plugins::DatePickerPlugin::renderForEdit(
   'to', undef, '%Y');

addToHEAD

TWiki::Plugins::DatePickerPlugin::addToHEAD( $setup )

This function will automatically add the headers for the calendar to the page being rendered. It's intended for use when you want more control over the formatting of your calendars than renderForEdit affords. $setup is the name of the calendar setup module; it can either be omitted, in which case the method described in the Mishoo documentation can be used to create calendars, or it can be 'twiki', in which case a Javascript helper function called 'showCalendar' is added that simplifies using calendars to set a value in a text field. For example, say we wanted to display the date with the calendar icon before the text field, using the format %Y %b %e

use TWiki::Plugins::DatePickerPlugin;
...

sub commonTagsHandler {
  ....
  # Add styles and javascript for the date picker & enable 'showCalendar'
  TWiki::Plugins::DatePickerPlugin::addToHEAD( 'twiki' );

  my $cal = CGI::image_button(
      -name => 'img_datefield',
      -onclick =>
       "return showCalendar('id_datefield','%Y %b %e')",
      -src=> TWiki::Func::getPubUrlPath() . '/' .
             TWiki::Func::getTwikiWebname() .
             '/DatePickerPlugin/img.gif',
      -alt => 'Calendar',
      -align => 'middle' )
    . CGI::textfield(
      { name => 'date', id => "id_datefield" });
  ....
}

The first parameter to showCalendar is the id of the textfield, and the second parameter is the date format. Default format is '%Y-%m-%d'.

The addToHEAD function can be called from commonTagsHandler for adding the header to all pages, or from beforeEditHandler just for edit pages etc.

• For an automated installation, run the configure script and follow "Find More Extensions" in the in the Extensions section.
  • See the installation supplement on TWiki.org for more information.

• Or, follow these manual installation steps:
  • Download the ZIP file from the extension home on twiki.org (see below).
  • Unzip DatePickerPlugin.zip in your twiki installation directory.
  • Set the ownership of the extracted directories and files to the webserver user.
  • Install the dependencies (if any).

• Plugin configuration and testing:
  • Run the configure script and enable the plugin in the Plugins section.
  • Configure additional plugin settings in the Extensions section if needed.
  • Test if the installation was successful using the examples provided.

• An administrator can customize the appearance of the calendar by modifying {Plugins}{DatePickerPlugin} settings in the "Extensions" section of configure:

  Setting	Default
  $TWiki::cfg{Plugins}{DatePickerPlugin}{Format}	'%Y-%m-%d'
  $TWiki::cfg{Plugins}{DatePickerPlugin}{Lang}	'en'
  $TWiki::cfg{Plugins}{DatePickerPlugin}{Style}	'twiki'