Merge remote-tracking branch 'silverstripe-scienceninjas/pull/SSF-12'

code/controllers/AssetAdmin.php

@@ -31,6 +31,7 @@ class AssetAdmin extends LeftAndMain {
 		'savefile',
 		'deleteUnusedThumbnails' => 'ADMIN',
 		'SyncForm',
+		'filter',
 	);
 	
 	/**
@@ -210,6 +211,40 @@ JS
 		return $content;
 	}
 	
+	/**
+	 * Returns a form for filtering of files and assets gridfield
+	 *
+	 * @return Form
+	 * @see AssetAdmin.js
+	 */
+	public function FilterForm() {
+		$fields = new FieldList();
+		// Below is the filters that this field should filter on
+		$fields->push(new TextField('Title'));
+		$fields->push(new TextField('ClassName','Type'));
+		
+		$actions = new FieldList();
+		$actions->push(new FormAction('doFilter', 'Filter'));
+		$actions->push(new ResetFormAction('doResetFilter', 'Clear Filter'));
+		
+		$form = new Form($this, 'filter', $fields, $actions);
+		$form->addExtraClass('cms-filter-form');
+		// This have to match data-name attribute on the gridfield so that the javascript selectors work
+		$form->setAttribute('data-gridfield', 'File');
+		return $form;
+	}
+
+	/**
+	 * If this method get's called, it means that javascript didn't hook into to the submit on
+	 * FilterForm and we can currently not do a Filter without javascript.
+	 *
+	 * @param SS_HTTPRequest $data
+	 * @throws SS_HTTPResponse_Exception
+	 */
+	public function filter(SS_HTTPRequest $data) {
+		throw new SS_HTTPResponse_Exception('Filterpanel doesn\'t work without javascript enabled.');
+	}
+	
 	public function AddForm() {
 		$form = parent::AddForm();
 		$folder = singleton('Folder');

templates/Includes/AssetAdmin_Tools.ss

@@ -1,7 +1,7 @@
 <div class="cms-content-tools west cms-panel cms-panel-layout collapsed" id="cms-content-tools" data-expandOnClick="true" data-layout-type="border">
 	<div class="cms-panel-content center">
 		<h3 class="cms-panel-header"><% _t('FILTER', 'Filter') %></h3>
-		TODO
+		$FilterForm
 	</div>
 	<div class="cms-panel-content-collapsed">
 		<h3 class="cms-panel-header"><% _t('FILTER', 'Filter') %></h3>