Datei: /pages/tutorials/treeview/treeview-04.php
<?php
class Treeview04 extends Page {
public function InitializeComponent() {
parent::$PAGE_TITLE = "Tutorial : Add / delete dynamically
folder / file (Ajax events + right click)";
// Init treeview
$this->tree = new TreeView("tree04");
$root = new TreeViewFolder("Root");
$root->setTag(-1);
$items_array = array();
$items_array[-1] = $root;
$this->tree->setTreeViewItems(new TreeViewItems($root));
// Create nodes from database
$treeview_items = null;
$last_parent_id = -9999;
$treeview_list = new TreeviewObjList();
$treeview_array = $treeview_list->getTreeviewObjectArray("",
TreeviewDbTable::FIELD_PARENT);
for ($i=0; $i < sizeof($treeview_array); $i++) {
$node = $treeview_array[$i];
// Create TreeViewItems to associate on parent node
if ($last_parent_id != $node->getParent()) {
if ($treeview_items != null && $parent_node != null) {
$parent_node->setTreeViewItems($treeview_items);
}
$treeview_items = new TreeViewItems();
$last_parent_id = $node->getParent();
}
// get parent node
$parent_node = $items_array[$node->getParent()];
// Create node (file or folder)
if ($node->getType() == "D") { // Folder
$item = new TreeViewFolder("Folder ".$node->getId());
$item->setTag($node->getId()); // to store node id
} else {
$item = new TreeViewFile("File ".$node->getId());
$item->setTag($node->getId()); // to store node id
}
// associate item on parent node
$treeview_items->add($item);
// save item on array items_array
$items_array[$node->getId()] = $item;
}
if ($treeview_items != null && $parent_node != null) {
$parent_node->setTreeViewItems($treeview_items);
}
// Create context menu
$menu_form = new Form($this); // necessary in tab
$this->folder_menu = new ContextMenu("context_menu_folder_4");
$add_folder_event = new ContextMenuEvent($menu_form);
$add_folder_event->onClick("createFolder")->setAjaxEvent();
$this->folder_menu->addItem("Add Folder",
ContextMenu::CONTEXTMENU_ICON_FOLDER_ADD,
$add_folder_event);
$del_folder_event = new ContextMenuEvent($menu_form);
$del_folder_event->onClick("deleteFolder")->setAjaxEvent();
$this->folder_menu->addItem("Delete Folder",
ContextMenu::CONTEXTMENU_ICON_FOLDER_DELETE,
$del_folder_event);
$add_file_event = new ContextMenuEvent($menu_form);
$add_file_event->onClick("createFile")->setAjaxEvent();
$this->folder_menu->addItem("Add File",
ContextMenu::CONTEXTMENU_ICON_PAGE_ADD,
$add_file_event);
$this->file_menu = new ContextMenu("context_menu_file_4");
$del_file_event = new ContextMenuEvent($menu_form);
$del_file_event->onClick("deleteFile")->setAjaxEvent();
$this->file_menu->addItem("Delete File",
ContextMenu::CONTEXTMENU_ICON_PAGE_DELETE,
$del_file_event);
// Associate context menu to treeview items
$this->tree->setContextMenuRoot($this->folder_menu);
$this->tree->setContextMenuFolder($this->folder_menu);
$this->tree->setContextMenuFile($this->file_menu);
// Don't forget to call this methos to be sure you have
// generated ids on the node of your tree (necessary to
// call the method createFolder, deleteFolder, ...)
$this->tree->generateTreeViewIds();
$this->render = $menu_form->setContent($this->tree);
}
public function createFolder($sender, $treeview_item) {
// Create new folder in database
$new_folder = new TreeviewObj(null, "D",
$treeview_item->getTag());
$new_folder->save();
// Create folder in the treeview (ajax refresh)
$treeview_item->addFolder("Folder ".$new_folder->getId(),
$this->folder_menu);
}
public function deleteFolder($sender, $treeview_item) {
if ($treeview_item->getTag() == -1) {
alert("You can't delete root folder");
} else {
// Get chidren if exists
$treeview_list = new TreeviewObjList();
$treeview_array = $treeview_list->getTreeviewObjectArray(
TreeviewDbTable::FIELD_PARENT."=".
$treeview_item->getTag());
for ($i=0; $i < sizeof($treeview_array); $i++) {
// Generate child id (path)
$child_id = $treeview_item->getId()."_";
if ($treeview_array[$i]->getType() == "D") {
$child_id .= "folder_";
} else {
$child_id .= "file_";
}
$child_id .= $treeview_array[$i]->getId();
// Search chold node in the tree
$item = $this->tree->searchTreeViewItemId($child_id);
if ($item != null) {
// Delete the child node
$this->deleteFolder($sender, $item);
}
}
// Delete folder in database
$del_folder = new TreeviewObj($treeview_item->getTag());
$del_folder->delete();
// Delete folder in the treeview (ajax refresh)
$treeview_item->removeItem();
}
}
public function createFile($sender, $treeview_item) {
// Create new file in database
$new_folder = new TreeviewObj(null, "F",
$treeview_item->getTag());
$new_folder->save();
// Create file in the treeview (ajax refresh)
$treeview_item->addFile("File ".$new_folder->getId(),
$this->file_menu);
}
public function deleteFile($sender, $treeview_item) {
// Delete file in database
$del_folder = new TreeviewObj($treeview_item->getTag());
$del_folder->delete();
// Delete file in the treeview (ajax refresh)
$treeview_item->removeItem();
}
}
?>
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