juust ~ php oddities

flickr wp widget

mijn eerste widget

I woke up this morning (19-7) and I reckoned ‘monkeys… are more fun than humans’ so I first programmed a quick flickr ape-scraper and then programmed one to put em in a grid, Then I thought man, I still have to make a wordpress plugin one of these days and monkey-plugins are fun, the rest sucks, so i turned it into a wordpress widget.

Ha! my first wordpress widget! monkeys can be fun.

/*
Plugin Name: Scrape the Ape
Plugin URI: http://juust.org/
Description: How to scrape a zoo from Flickr onto the sidebar.
Version: 0.1
Author: Lord of Apes
Author URI: http://juust.org/
*/
function disp_apes( $args, $widget_args = 1 ) {
extract( $args, EXTR_SKIP );
if ( is_numeric($widget_args) )
$widget_args = array( 'number' => $widget_args );
$widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
extract( $widget_args, EXTR_SKIP );
// Data should be stored as array: array( number => data for that instance of the widget, … )
$options = get_option('widget_apes');
if ( !isset($options[$number]) )
return;
extract($options[$number], EXTR_SKIP);
$flikker = join("",file("http://api.flickr.com/services/feeds/photos_public.gne?tags=".$apes_tags."&format=rss"));
$flikkerhits = preg_split('/img src=&quot\;/', $flikker, -1, PREG_SPLIT_OFFSET_CAPTURE);
foreach($flikkerhits as $flikkerhit){
$i++;
if($i>1) $apes[]=substr($flikkerhit[0], 0, strpos($flikkerhit[0], 'width')-7);
}
$strgrid = "";
$currentcol=1;
$currentrow=1;
$columns=$apes_cols;
$rows=$apes_rows;
$strgrid .= "<div class=\"ApesZoo\"><table><tbody><tr>";
for($a=0;$a<count ($apes);$a++) {
$strgrid .= "<td class=\"ApesCage\">";
$strgrid .= "<img src=\"".$apes[$a]."\" width=\"45px\" height=\"45px\" />";
$strgrid .= "";
$currentcol++;
if($currentcol>$columns) {
$currentcol=1;
$strgrid .= "</count></tr>";
$currentrow++;
if($currentrow>$rows) {
break;
} else {
$strgrid .= "<tr>";
}
}
}
$strgrid .= "</tr></tbody></table></div>";
echo $strgrid;
}
function apes_control($widget_args) {
global $wp_registered_widgets;
static $updated = false; // Whether or not we have already updated the data after a POST submit
if ( is_numeric($widget_args) )
$widget_args = array( 'number' => $widget_args );
$widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
extract( $widget_args, EXTR_SKIP );
// Data should be stored as array: array( number => data for that instance of the widget, … )
$options = get_option('widget_apes');
if ( !is_array($options) )
$options = array();
// We need to update the data
if ( !$updated && !empty($_POST['sidebar']) ) {
// Tells us what sidebar to put the data in
$sidebar = (string) $_POST['sidebar'];
$sidebars_widgets = wp_get_sidebars_widgets();
if ( isset($sidebars_widgets[$sidebar]) )
$this_sidebar =& $sidebars_widgets[$sidebar];
else
$this_sidebar = array();
foreach ( $this_sidebar as $_widget_id ) {
// Remove all widgets of this type from the sidebar. We'll add the new data in a second. This makes sure we don't get any duplicate data
// since widget ids aren't necessarily persistent across multiple updates
if ( 'disp_apes' == $wp_registered_widgets[$_widget_id]['callback'] && isset($wp_registered_widgets[$_widget_id]['params'][0]['number']) ) {
$widget_number = $wp_registered_widgets[$_widget_id]['params'][0]['number'];
if ( !in_array( "apes-$widget_number", $_POST['widget-id'] ) ) // the widget has been removed. "many-$widget_number" is "{id_base}-{widget_number}
unset($options[$widget_number]);
}
}
foreach ( (array) $_POST['apes'] as $widget_number => $widget_apes_instance ) {
// compile data from $widget_random_image_instance
$apes_tags=strip_tags(stripslashes( $widget_apes_instance['apes_tags']));
$apes_rows=strip_tags(stripslashes( $widget_apes_instance['apes_rows']));
$apes_cols=strip_tags(stripslashes( $widget_apes_instance['apes_cols']));
$options[$widget_number] = compact('apes_tags', 'apes_cols', 'apes_rows');
}
update_option('widget_apes', $options);
$updated = true; // So that we don't go through this more than once
}
// Here we echo out the form
if ( -1 == $number ) {
$apes_tags = 'apes';
$apes_cols = 3;
$apes_rows = 2;
$number = '%i%';
}
else {
$apes_tags=attribute_escape($options[$number]['apes_tags']);
$apes_cols=attribute_escape($options[$number]['apes_cols']);
$apes_rows=attribute_escape($options[$number]['apes_rows']);
}
// The form has inputs with names like widget-many[$number][something] so that all data for that instance of
// the widget are stored in one $_POST variable: $_POST['widget-many'][$number]
?>
<p style="text-align:left; line-height=1.2em"><label for="apes-apes_tags-<?php echo $number; ?>">Tags: <input style="width: 200px;" id="apes-apes_tags-<?php echo $number; ?/>" name="apes[< ?php echo $number; ?>][apes_tags]" type="text" value="< ?php echo $apes_tags; ?>" /></label></p>
<p style="text-align:left; line-height=1.2em"><label for="apes-apes_cols-<?php echo $number; ?>">Colums: <input style="width: 200px;" id="apes-apes_cols-<?php echo $number; ?/>" name="apes[< ?php echo $number; ?>][apes_cols]" type="text" value="< ?php echo $apes_cols; ?>" /></label></p>
<p style="text-align:left; line-height=1.2em"><label for="apes-apes_rows-<?php echo $number; ?>">rows: <input style="width: 200px;" id="apes-apes_rows-<?php echo $number; ?/>" name="apes[< ?php echo $number; ?>][apes_rows]" type="text" value="< ?php echo $apes_rows; ?>" /></label></p>
< ?php
}
/* Function: apes_register
**
** Registers the apes widgets with the widget page
**
** args: none
** returns: nothing
*/
function apes_register() {
if ( !$options = get_option('widget_apes') )
$options = array();
$widget_ops = array('classname' => 'widget_apes', 'description' => __('Displays Flickr Apes'));
$control_ops = array('apes_cols' => 3, 'apes_rows' => 2, 'apes_tags' => 'apes', 'id_base' => 'apes');
$name = __('Scrape the Apes');
$registered = false;
foreach ( array_keys($options) as $o ) {
// Old widgets can have null values for some reason
if ( !isset($options[$o]['apes_tags']) )
continue;
// $id should look like {$id_base}-{$o}
$id = "apes-$o"; // Never never never translate an id
$registered = true;
wp_register_sidebar_widget( $id, $name, 'disp_apes', $widget_ops, array( 'number' => $o ) );
wp_register_widget_control( $id, $name, 'apes_control', $control_ops, array( 'number' => $o ) );
}
// If there are none, we register the widget's existance with a generic template
if ( !$registered ) {
wp_register_sidebar_widget( 'apes-1', $name, 'disp_apes', $widget_ops, array( 'number' => -1 ) );
wp_register_widget_control( 'apes-1', $name, 'apes_control', $control_ops, array( 'number' => -1 ) );
}
}
// This is important
add_action( 'widgets_init', 'apes_register' )