PHP Editor Review - Pear Manual Package gtk2 filedrop example

Using Gtk2_FileDrop

Example 40-1. General setup

<?php
$accepted_types = array(
    'text/html',
    'text/plain',
    '.dat'
);
Gtk2_FileDrop::attach($widget, $accepted_types);
?>

Here we set up the array of accepted file types: The widget shall accept files with MIME-Type text/html, text/plain and files ending with .dat. After this we set up the $widget to accept this files.

Example 40-2. Accepting directories

$accepted_types = array(
    'inode/directory',
);

The MIME type inode/directory has to be used if the widget shall accept directories.

Note: When a file is dropped over a widget which accepts directories only, the directory of the filename is used.

Example 40-3. Setup with callback

<?php
function filesDropped($widget, $arFiles) {
    foreach($arFiles as $strFile) {
        echo "The file \"$strFile\" has been dropped\r\n";
    }
}

$accepted_types = array(
    'text/html',
    'text/plain',
    '.dat'
);
Gtk2_FileDrop::attach($widget, $accepted_types, 'filesDropped', false);
?>

In this example we use a callback function to print out all dropped files to the console. Further we determine the fourth parameter as false which means that the widget's value is not changed automatically.

To use the callback with objects, you pass an array with the reference of the object:
Example 40-4. Using a callback
<?php Gtk2_FileDrop::attach($widget, $accepted_types, array( &$this, 'filesDropped')); ?>

Example 40-5. Working example

<?php
require_once 'Gtk2/FileDrop.php';

$window = new GtkWindow();
$window->set_default_size(300, 30);
$window->connect_simple('destroy', array('gtk', 'main_quit'));
$window->show();

$entry = new GtkEntry();
$window->add($entry);
$entry->set_text('drop text files on me');
Gtk2_FileDrop::attach($entry, array('text/plain'));

$window->show_all();
Gtk::main();
?>