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 file_put_contents(ASSETS_PATH . '/iframe.html', $this->createTag (
 86                 'iframe',
 87                 array (
 88                     'name'  => $this->Name() . '_iframe',
 89                     'src'   => Controller::join_links($this->Link(), $iframe),
 90                     'style' => 'height: 152px; width: 100%; border: none;'
 91                 ),
 92                 'vasya'
 93             ));         
 94             return $this->createTag (
 95                 'iframe',
 96                 array (
 97                     'name'  => $this->Name() . '_iframe',
 98                     'src'   => Controller::join_links($this->Link(), $iframe),
 99                     'style' => 'height: 152px; width: 100%; border: none;'
100                 )
101             ) . $this->createTag (
102                 'input',
103                 array (
104                     'type'  => 'hidden',
105                     'id'    => $this->ID(),
106                     'name'  => $this->Name() . 'ID',
107                     'value' => $this->attrValue()
108                 )
109             );
110         }
111         
112         $this->setValue(sprintf(_t (
113             'FileIFrameField.ATTACHONCESAVED', '%ss can be attached once you have saved the record for the first time.'
114         ), $this->FileTypeName()));
115         
116         return FormField::field();
117     }
118     
119     /**
120      * Attempt to retreive a File object that has already been attached to this forms data record
121      *
122      * @return File|null
123      */
124     public function AttachedFile() {
125         return $this->form->getRecord() ? $this->form->getRecord()->{$this->Name()}() : null;
126     }
127     
128     /**
129      * @return string
130      */
131     public function iframe() {
132         // clear the requirements added by any parent controllers
133         Requirements::clear();
134         Requirements::add_i18n_javascript('sapphire/javascript/lang');
135         Requirements::javascript(THIRDPARTY_DIR . '/prototype/prototype.js');
136         Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
137         Requirements::javascript('sapphire/javascript/FileIFrameField.js');
138         
139         Requirements::css('cms/css/typography.css');
140         Requirements::css('sapphire/css/FileIFrameField.css');
141         
142         return $this->renderWith('FileIFrameField_iframe');
143     }
144     
145     /**
146      * @return Form
147      */
148     public function EditFileForm() {
149         $uploadFile = _t('FileIFrameField.FROMCOMPUTER', 'From your Computer');
150         $selectFile = _t('FileIFrameField.FROMFILESTORE', 'From the File Store');
151         
152         if($this->AttachedFile() && $this->AttachedFile()->ID) {
153             $title = sprintf(_t('FileIFrameField.REPLACE', 'Replace %s'), $this->FileTypeName());
154         } else {
155             $title = sprintf(_t('FileIFrameField.ATTACH', 'Attach %s'), $this->FileTypeName());
156         }
157         
158         $fileSources = array();
159         if(singleton($this->dataClass())->canCreate()) {
160             if($this->canUploadNewFile) {
161                 $fileSources["new//$uploadFile"] = new FileField('Upload', '');
162             }
163         }
164         // выставляем в дереве корневую папку, если указано
165         $tdf = new TreeDropdownField('ExistingFile', '', 'File');       
166         $folderName = 'assets/' . $this->FolderName . '/';              
167         $fileFolder = DataObject::get_one('Folder', "Filename = '{$folderName}'");      
168         if ($fileFolder) {
169             $tdf->setValue($fileFolder->ID);
170         }       
171         $fileSources["existing//$selectFile"] = $tdf;
172 
173         $fields = new FieldSet (
174             new HeaderField('EditFileHeader', $title),
175             new SelectionGroup('FileSource', $fileSources)
176         );
177         
178         // locale needs to be passed through from the iframe source
179         if(isset($_GET['locale'])) {
180             $fields->push(new HiddenField('locale', '', $_GET['locale']));
181         }
182         
183         return new Form (
184             $this,
185             'EditFileForm',
186             $fields,
187             new FieldSet(
188                 new FormAction('save', $title)
189             )
190         );
191     }
192     
193     public function save($data, $form) {
194         // check the user has entered all the required information
195         if (
196             !isset($data['FileSource'])
197             || ($data['FileSource'] == 'new' && (!isset($_FILES['Upload']) || !$_FILES['Upload']))
198             || ($data['FileSource'] == 'existing' && (!isset($data['ExistingFile']) || !$data['ExistingFile']))
199         ) {
200             $form->sessionMessage(_t('FileIFrameField.NOSOURCE', 'Please select a source file to attach'), 'required');
201             Director::redirectBack();
202             return;
203         }
204         
205         $desiredClass = $this->dataClass();
206         
207         // upload a new file
208         if($data['FileSource'] == 'new') {
209             if (class_exists('ImageAutoResize')) {
210                 $oldMaxSizes = ImageAutoResize::get_max_size();
211                 $maxWidth = ($this->AutoresizeMaxWidth > 0) ? $this->AutoresizeMaxWidth : $oldMaxSizes['Width'];
212                 $maxHeight = ($this->AutoresizeMaxHeight > 0) ? $this->AutoresizeMaxHeight : $oldMaxSizes['Height'];
213                 ImageAutoResize::set_max_size($maxWidth, $maxHeight);
214             }
215             
216             $fileObject = Object::create($desiredClass);
217             
218             $this->upload->loadIntoFile($_FILES['Upload'], $fileObject, $this->folderName);
219             
220             if($this->upload->isError()) {
221                 Director::redirectBack();
222                 return;
223             }
224             
225             $this->form->getRecord()->{$this->Name() . 'ID'} = $fileObject->ID;
226             
227             $fileObject->OwnerID = (Member::currentUser() ? Member::currentUser()->ID : 0);
228             $fileObject->write();
229             if (class_exists('ImageAutoResize')) {
230                 ImageAutoResize::set_max_size($oldMaxSizes['Width'], $oldMaxSizes['Height']);
231             }
232         }
233         
234         // attach an existing file from the assets store
235         if($data['FileSource'] == 'existing') {
236             $fileObject = DataObject::get_by_id('File', $data['ExistingFile']);
237             
238             // dont allow the user to attach a folder by default
239             if(!$fileObject || ($fileObject instanceof Folder && $desiredClass != 'Folder')) {
240                 Director::redirectBack();
241                 return;
242             }
243             
244             $this->form->getRecord()->{$this->Name() . 'ID'} = $fileObject->ID;
245             
246             if(!$fileObject instanceof $desiredClass) {
247                 $fileObject->ClassName = $desiredClass;
248                 $fileObject->write();
249             }
250         }
251         
252         $this->form->getRecord()->write();
253         Director::redirectBack();
254     }
255     
256     /**
257      * @return Form
258      */
259     public function DeleteFileForm() {
260         $form = new Form (
261             $this,
262             'DeleteFileForm',
263             new FieldSet (
264                 new HiddenField('DeleteFile', null, false)
265             ),
266             new FieldSet (
267                 $deleteButton = new FormAction (
268                     'delete', sprintf(_t('FileIFrameField.DELETE', 'Delete %s'), $this->FileTypeName())
269                 )
270             )
271         );
272         
273         $deleteButton->addExtraClass('delete');
274         return $form;
275     }
276     
277     public function delete($data, $form) {
278         // delete the actual file, or just un-attach it?
279         if(isset($data['DeleteFile']) && $data['DeleteFile']) {
280             $file = DataObject::get_by_id('File', $this->form->getRecord()->{$this->Name() . 'ID'});
281             
282             if($file) {
283                 $file->delete();
284             }
285         }
286         
287         // then un-attach file from this record
288         $this->form->getRecord()->{$this->Name() . 'ID'} = 0;
289         $this->form->getRecord()->write();
290         
291         Director::redirectBack();
292     }
293     
294     /**
295      * Get the type of file this field is used to attach (e.g. File, Image)
296      *
297      * @return string
298      */
299     public function FileTypeName() {
300         return _t('FileIFrameField.FILE', 'File');
301     }
302     
303 }
304