1 <?php 
  2 /**
  3  * A field that allows you to attach a file to a DataObject without submitting the form it is part of, through the use
  4  * of an iframe.
  5  *
  6  * If all you need is a simple file upload, it is reccomended you use {@link FileField}
  7  *
  8  * @package forms
  9  * @subpackage fields-files
 10  */
 11 class FileIFrameField extends FileField {
 12     
 13     public static $allowed_actions = array (
 14         'iframe',
 15         'EditFileForm',
 16         'DeleteFileForm'
 17     );
 18     
 19     /**
 20      * Flag that controls whether or not new files
 21      * can be uploaded by the user from their local computer.
 22      * 
 23      * @var boolean
 24      */
 25     protected $canUploadNewFile = true; 
 26     
 27     /**
 28      * Индивидульаная максимальная ширина для изображения
 29      * Используется, если задано > 0, и наче - общее значение
 30      *
 31      * @var int
 32      */
 33     public $AutoresizeMaxWidth = 0;
 34 
 35     /**
 36      * Индивидульаная максимальная высота для изображения
 37      * Используется, если задано > 0, и наче - общее значение
 38      *
 39      * @var int
 40      */
 41     public $AutoresizeMaxHeight = 0;
 42     
 43     /** 
 44      * Sets whether or not files can be uploaded into the CMS from the user's local computer 
 45      * @param boolean $can
 46      */
 47     public function setCanUploadNewFile($can) {
 48         $this->canUploadNewFile = $can;
 49     }
 50     
 51     /**
 52      * The data class that this field is editing.
 53      * @return string Class name
 54      */
 55     public function dataClass() {
 56         if($this->form && $this->form->getRecord()) {
 57             $class = $this->form->getRecord()->has_one($this->Name());
 58             return ($class) ? $class : 'File';
 59         } else {
 60             return 'File';
 61         }
 62     }
 63     
 64     /**
 65      * @return string
 66      */
 67     public function Field() {
 68         if ($this->isReadonly()) {
 69             return ($this->AttachedFile() && $this->AttachedFile()->ID) ? $this->AttachedFile()->CMSThumbnail() : '';
 70         }
 71 
 72         Requirements::css(THIRDPARTY_DIR . '/jquery-ui-themes/base/jquery.ui.all.css');
 73         Requirements::add_i18n_javascript(SAPPHIRE_DIR . '/javascript/lang');
 74         Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
 75         Requirements::javascript(THIRDPARTY_DIR . '/jquery-ui/jquery-ui-1.8rc3.custom.js');
 76         
 77         
 78         if($this->form->getRecord() && $this->form->getRecord()->exists()) {
 79             $record = $this->form->getRecord();
 80             if(Object::has_extension('SiteTree', 'Translatable') && $record->Locale){
 81                 $iframe = "iframe?locale={$record->Locale}&m=".time();
 82             }else{
 83                 $iframe = "iframe?m=".time();
 84             }
 85             
 86             return $this->createTag (
 87                 'iframe',
 88                 array (
 89                     'name'  => $this->Name() . '_iframe',
 90                     'src'   => Controller::join_links($this->Link(), $iframe),
 91                     'style' => 'height: 152px; width: 100%; border: none;'
 92                 )
 93             ) . $this->createTag (
 94                 'input',
 95                 array (
 96                     'type'  => 'hidden',
 97                     'id'    => $this->ID(),
 98                     'name'  => $this->Name() . 'ID',
 99                     'value' => $this->attrValue()
100                 )
101             );
102         }
103         
104         $this->setValue(sprintf(_t (
105             'FileIFrameField.ATTACHONCESAVED', '%ss can be attached once you have saved the record for the first time.'
106         ), $this->FileTypeName()));
107         
108         return FormField::field();
109     }
110     
111     /**
112      * Attempt to retreive a File object that has already been attached to this forms data record
113      *
114      * @return File|null
115      */
116     public function AttachedFile() {
117         return $this->form->getRecord() ? $this->form->getRecord()->{$this->Name()}() : null;
118     }
119     
120     /**
121      * @return string
122      */
123     public function iframe() {
124         // clear the requirements added by any parent controllers
125         Requirements::clear();
126         Requirements::add_i18n_javascript('sapphire/javascript/lang');
127         Requirements::javascript(THIRDPARTY_DIR . '/prototype/prototype.js');
128         Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
129         Requirements::javascript('sapphire/javascript/FileIFrameField.js');
130         
131         Requirements::css('cms/css/typography.css');
132         Requirements::css('sapphire/css/FileIFrameField.css');
133         
134         return $this->renderWith('FileIFrameField');
135     }
136     
137     /**
138      * @return Form
139      */
140     public function EditFileForm() {
141         $uploadFile = _t('FileIFrameField.FROMCOMPUTER', 'From your Computer');
142         $selectFile = _t('FileIFrameField.FROMFILESTORE', 'From the File Store');
143         
144         if($this->AttachedFile() && $this->AttachedFile()->ID) {
145             $title = sprintf(_t('FileIFrameField.REPLACE', 'Replace %s'), $this->FileTypeName());
146         } else {
147             $title = sprintf(_t('FileIFrameField.ATTACH', 'Attach %s'), $this->FileTypeName());
148         }
149         
150         $fileSources = array();
151         if(singleton($this->dataClass())->canCreate()) {
152             if($this->canUploadNewFile) {
153                 $fileSources["new//$uploadFile"] = new FileField('Upload', '');
154             }
155         }
156         // выставляем в дереве корневую папку, если указано
157         $tdf = new TreeDropdownField('ExistingFile', '', 'File');       
158         $folderName = 'assets/' . $this->FolderName . '/';              
159         $fileFolder = DataObject::get_one('Folder', "Filename = '{$folderName}'");      
160         if ($fileFolder) {
161             $tdf->setValue($fileFolder->ID);
162         }       
163         $fileSources["existing//$selectFile"] = $tdf;
164 
165         $fields = new FieldSet (
166             new HeaderField('EditFileHeader', $title),
167             new SelectionGroup('FileSource', $fileSources)
168         );
169         
170         // locale needs to be passed through from the iframe source
171         if(isset($_GET['locale'])) {
172             $fields->push(new HiddenField('locale', '', $_GET['locale']));
173         }
174         
175         return new Form (
176             $this,
177             'EditFileForm',
178             $fields,
179             new FieldSet(
180                 new FormAction('save', $title)
181             )
182         );
183     }
184     
185     public function save($data, $form) {
186         // check the user has entered all the required information
187         if (
188             !isset($data['FileSource'])
189             || ($data['FileSource'] == 'new' && (!isset($_FILES['Upload']) || !$_FILES['Upload']))
190             || ($data['FileSource'] == 'existing' && (!isset($data['ExistingFile']) || !$data['ExistingFile']))
191         ) {
192             $form->sessionMessage(_t('FileIFrameField.NOSOURCE', 'Please select a source file to attach'), 'required');
193             Director::redirectBack();
194             return;
195         }
196         
197         $desiredClass = $this->dataClass();
198         
199         // upload a new file
200         if($data['FileSource'] == 'new') {
201             if (class_exists('ImageAutoResize')) {
202                 $oldMaxSizes = ImageAutoResize::get_max_size();
203                 $maxWidth = ($this->AutoresizeMaxWidth > 0) ? $this->AutoresizeMaxWidth : $oldMaxSizes['Width'];
204                 $maxHeight = ($this->AutoresizeMaxHeight > 0) ? $this->AutoresizeMaxHeight : $oldMaxSizes['Height'];
205                 ImageAutoResize::set_max_size($maxWidth, $maxHeight);
206             }
207             
208             $fileObject = Object::create($desiredClass);
209             
210             $this->upload->loadIntoFile($_FILES['Upload'], $fileObject, $this->folderName);
211             
212             if($this->upload->isError()) {
213                 Director::redirectBack();
214                 return;
215             }
216             
217             $this->form->getRecord()->{$this->Name() . 'ID'} = $fileObject->ID;
218             
219             $fileObject->OwnerID = (Member::currentUser() ? Member::currentUser()->ID : 0);
220             $fileObject->write();
221             if (class_exists('ImageAutoResize')) {
222                 ImageAutoResize::set_max_size($oldMaxSizes['Width'], $oldMaxSizes['Height']);
223             }
224         }
225         
226         // attach an existing file from the assets store
227         if($data['FileSource'] == 'existing') {
228             $fileObject = DataObject::get_by_id('File', $data['ExistingFile']);
229             
230             // dont allow the user to attach a folder by default
231             if(!$fileObject || ($fileObject instanceof Folder && $desiredClass != 'Folder')) {
232                 Director::redirectBack();
233                 return;
234             }
235             
236             $this->form->getRecord()->{$this->Name() . 'ID'} = $fileObject->ID;
237             
238             if(!$fileObject instanceof $desiredClass) {
239                 $fileObject->ClassName = $desiredClass;
240                 $fileObject->write();
241             }
242         }
243         
244         $this->form->getRecord()->write();
245         Director::redirectBack();
246     }
247     
248     /**
249      * @return Form
250      */
251     public function DeleteFileForm() {
252         $form = new Form (
253             $this,
254             'DeleteFileForm',
255             new FieldSet (
256                 new HiddenField('DeleteFile', null, false)
257             ),
258             new FieldSet (
259                 $deleteButton = new FormAction (
260                     'delete', sprintf(_t('FileIFrameField.DELETE', 'Delete %s'), $this->FileTypeName())
261                 )
262             )
263         );
264         
265         $deleteButton->addExtraClass('delete');
266         return $form;
267     }
268     
269     public function delete($data, $form) {
270         // delete the actual file, or just un-attach it?
271         if(isset($data['DeleteFile']) && $data['DeleteFile']) {
272             $file = DataObject::get_by_id('File', $this->form->getRecord()->{$this->Name() . 'ID'});
273             
274             if($file) {
275                 $file->delete();
276             }
277         }
278         
279         // then un-attach file from this record
280         $this->form->getRecord()->{$this->Name() . 'ID'} = 0;
281         $this->form->getRecord()->write();
282         
283         Director::redirectBack();
284     }
285     
286     /**
287      * Get the type of file this field is used to attach (e.g. File, Image)
288      *
289      * @return string
290      */
291     public function FileTypeName() {
292         return _t('FileIFrameField.FILE', 'File');
293     }
294     
295 }
296