initial version
This commit is contained in:
Stefan Frech
312
folders.php
Normal file
312
folders.php
Normal file
@@ -0,0 +1,312 @@
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<?php
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if (basename ($_SERVER['SCRIPT_NAME']) == basename (__FILE__)) {
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die ("no direct access allowed");
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}
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class folder {
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function folder ($user = false) {
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global $settings;
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$this->username = $GLOBALS['username'];
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$this->folderid = $GLOBALS['folderid'];
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$this->folders = array ();
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$this->tree = array ();
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$this->get_children = array ();
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$this->level = 0;
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$this->foreign_username = false;
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$this->expand = $GLOBALS['expand'];
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if ($user) {
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$this->get_shared_data ($user);
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}
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else {
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$this->get_user_data ();
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}
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if ($settings['simple_tree_mode']) {
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$this->expand = $this->get_path_to_root ($this->folderid);
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}
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# searching for invalid folderid in GET variable
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if ( ! array_key_exists ($this->folderid, $this->folders)) {
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$this->folderid = 0;
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}
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# searching for invalid expand entries
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foreach ($this->expand as $key => $value) {
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if (! array_key_exists ($value, $this->folders)) {
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unset ($this->expand[$key]);
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}
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}
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}
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function get_user_data () {
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global $mysql;
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$query = sprintf ("SELECT id, childof, name, public FROM folder WHERE user='%s' AND deleted!='1' ORDER BY name",
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$mysql->escape ($_SESSION['username']));
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if ($mysql->query ($query)) {
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while ($row = mysql_fetch_assoc ($mysql->result)) {
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$this->folders[$row['id']] = $row;
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if (!isset ($this->children[$row['childof']])) {
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$this->children[$row['childof']] = array ();
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}
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array_push ($this->children[$row['childof']], $row['id']);
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}
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}
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else {
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message ($mysql->error);
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}
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}
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function get_shared_data ($username) {
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global $mysql;
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# does the user exist in the database?
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if (check_username ($username)) {
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$this->foreign_username = $username;
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}
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else {
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$this->foreign_username = $GLOBALS['username'];
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}
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# get all shared folders for the given user
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$query = "SELECT id, childof, name, public FROM folder WHERE public='1' AND deleted!='1'AND user='$this->foreign_username' ORDER BY 'name'";
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if ($mysql->query ($query)) {
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# make two arrays:
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# 1) $children containing arrays with children. the keys of these arrays are the id's of the parents
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# 2) $folders containing arrays with folder settings (id, childof, name, public)
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$shared_children = array ();
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while ($row = mysql_fetch_assoc ($mysql->result)) {
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$this->folders[$row['id']] = $row;
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if (!isset ($this->children[$row['childof']])) {
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$this->children[$row['childof']] = array ();
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}
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array_push ($this->children[$row['childof']], $row['id']);
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array_push ($shared_children, $row['id']);
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}
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$this->children[0] = array ();
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# the childof fields of each folder with no parent is being set to 0, so it becomes a child of the root folder
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foreach ($this->folders as $value) {
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if (in_array ($value['childof'], $shared_children)) {
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continue;
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}
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else {
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array_push ($this->children[0], $value['id']);
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$this->folders[$value['id']]['childof'] = 0;
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}
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}
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}
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else {
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message ($mysql->error);
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}
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}
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# assembles the tree
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function make_tree ($id) {
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if (isset ($this->children)){
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$this->level++;
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if (isset ($this->children[$id])) {
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foreach ($this->children[$id] as $value) {
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array_push ($this->tree, array (
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'level' => $this->level,
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'id' => $value,
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'name' => $this->folders[$value]['name'],
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'public' => $this->folders[$value]['public'],
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));
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# check for children
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$symbol = &$this->tree[count ($this->tree) - 1]['symbol'];
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if (isset ($this->children[$value])) {
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if (in_array ($value, $this->expand)) {
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$symbol = 'minus';
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$this->make_tree ($value);
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}
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else {
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$symbol = 'plus';
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}
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}
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else {
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$symbol = '';
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}
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}
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}
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$this->level--;
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}
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}
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# draws the tree
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function print_tree () {
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global $settings, $folder_opened, $folder_closed, $folder_opened_public, $folder_closed_public, $plus, $minus, $neutral;
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# depending on whom's bookmarks are being displayed, we set some variables differently
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if ($this->foreign_username) {
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$root_folder_name = $this->foreign_username . "'s Bookmarks";
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$user_var = "&user=$this->foreign_username";
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}
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else {
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$root_folder_name = $settings['root_folder_name'];
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$user_var = "";
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}
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$root_folder = array (
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'level' => 0,
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'id' => 0,
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'name' => $root_folder_name,
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'symbol' => null,
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'public' => 0,
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);
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array_unshift ($this->tree, $root_folder);
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foreach ($this->tree as $key => $value) {
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# this is the begining of the line that shows a folder
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# with the symbol (plus, minus or neutral)
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$spacer = '<div style="margin-left:' . $value['level'] * 20 . 'px;">';
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echo $spacer;
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if ($value['id'] == $this->folderid) {
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$folder_name = '<span class="active">' . $value['name'] . '</span>';
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if (!$this->foreign_username && $value['public']) {
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$folder_image = $folder_opened_public;
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}
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else {
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$folder_image = $folder_opened;
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}
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}
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else {
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$folder_name = $value['name'];
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if (!$this->foreign_username && $value['public']) {
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$folder_image = $folder_closed_public;
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}
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else {
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$folder_image = $folder_closed;
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}
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}
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if ($key > 5) {
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$ankor = "#" . $this->tree[$key - 5]['id'];
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}
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else {
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$ankor = "";
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}
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if ($value['symbol'] == "plus" || $value['symbol'] == "minus") {
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if ($value['symbol'] == "plus") {
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$symbol = $plus;
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$expand_s = $this->add_to_expand_list ($value['id']);
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if ($settings['fast_folder_plus']) {
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$expand_f = $expand_s;
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}
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else {
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$expand_f = $this->expand;
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}
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}
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else if ($value['symbol'] == "minus") {
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$symbol = $minus;
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$expand_s = $this->remove_from_expand_list ($value['id']);
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if ($settings['fast_folder_minus'] && $value['id'] == $this->folderid) {
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$expand_f = $expand_s;
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}
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else {
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$expand_f = $this->expand;
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}
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}
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if ($settings['fast_symbol']) {
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$folderid = $value['id'];
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}
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else {
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$folderid = $this->folderid;
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}
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# this prints the symbol (plus or minus) with its appropriate link
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echo '<a class="f" href="' . $_SERVER['SCRIPT_NAME'] . '?expand=' . implode(",", $expand_s);
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echo '&folderid=' . $folderid . $user_var . $ankor . '">' . $symbol . '</a>';
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}
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else {
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$symbol = $neutral;
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$expand_f = $this->expand;
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echo $symbol;
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}
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# this prints the folder name with its appropriate link
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echo '<a class="f" href="' . $_SERVER['SCRIPT_NAME'] . '?expand=' . implode(",", $expand_f);
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echo '&folderid=' . $value['id'] . $user_var . $ankor . '" name="' . $value['id'] . '">' . $folder_image . " " . $folder_name . '</a>';
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# and this is the end of the line
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echo "</div>\n";
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}
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}
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###
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### removes a value from the expand list
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###
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function remove_from_expand_list ($id){
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$expand = $this->expand;
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foreach ($expand as $key => $value) {
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if ($value == $id) {
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unset ($expand[$key]);
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}
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}
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return $expand;
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}
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###
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### adds a value to the expand list
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###
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function add_to_expand_list ($id){
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$expand = $this->expand;
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array_push ($expand, $id);
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return $expand;
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}
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###
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### returns an array containing all folder id's from
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### a given folder up to the root folder
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###
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function get_path_to_root ($id) {
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$path = array ();
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while ($id > 0) {
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array_push ($path, $id);
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if (!isset ($this->folders[$id])) {
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#echo "Folder Nr. $id does not have a parent";
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return array ();
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}
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else {
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$id = $this->folders[$id]['childof'];
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}
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}
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return $path;
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}
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###
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### prints a path
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###
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function print_path ($id) {
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global $settings;
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$parents = $this->get_path_to_root ($id);
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$parents = array_reverse ($parents);
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# the following if condition has been disabled. could be enabled to
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# allow the "show_root_folder" function.
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#if ($GLOBALS['show_root_folder']){
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$path = $GLOBALS['delimiter'] . $settings['root_folder_name'];
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#}
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foreach ($parents as $value) {
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$path .= $GLOBALS['delimiter'] . $this->folders[$value]['name'];
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}
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return $path;
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}
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###
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### returns an array containing all folder id's that
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### are children from a given folder
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###
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function get_children ($id) {
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if (isset ($this->children[$id])) {
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foreach ($this->children[$id] as $value) {
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array_push ($this->get_children, $value);
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$this->get_children ($value);
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}
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}
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}
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}
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?>
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