[pLog-svn] r4902 - in plog/trunk: class/action/admin class/action/admin/ajax class/data class/data/serialize class/data/serialize/json class/view/admin class/view/admin/ajax js/location js/ui
oscar at devel.lifetype.net
oscar at devel.lifetype.net
Thu Mar 1 08:50:09 EST 2007
Author: oscar
Date: 2007-03-01 08:50:09 -0500 (Thu, 01 Mar 2007)
New Revision: 4902
Added:
plog/trunk/class/action/admin/ajax/
plog/trunk/class/action/admin/ajax/adminajaxaction.class.php
plog/trunk/class/data/serialize/
plog/trunk/class/data/serialize/json/
plog/trunk/class/data/serialize/json/jsonserializer.class.php
plog/trunk/class/data/serialize/serializerbase.class.php
plog/trunk/class/data/serialize/serializerfactory.class.php
plog/trunk/class/view/admin/ajax/
plog/trunk/class/view/admin/ajax/adminajaxview.class.php
Modified:
plog/trunk/js/location/location.js
plog/trunk/js/ui/core.js
Log:
Added the foundation for developing Ajax-based classes within LT, hopefully this will help us settle on a single approach for implementing XmlHttpRequest based functionality.
The AdminAjaxAction and AdminAjaxView provide most of the functionality needed to make it painless to work with an Ajax interface. Communication is now based on JSon as it is much easier to work with on the Javascript side (responses from the web server are turned into native javascript arrays and objects) and AdminAjaxView takes care of all the encoding and serializing needed. The classes that handle locations in 1.3 have already been adapted to work with this new approach, the rest of ajax-based code will soon follow.
Added: plog/trunk/class/action/admin/ajax/adminajaxaction.class.php
===================================================================
--- plog/trunk/class/action/admin/ajax/adminajaxaction.class.php (rev 0)
+++ plog/trunk/class/action/admin/ajax/adminajaxaction.class.php 2007-03-01 13:50:09 UTC (rev 4902)
@@ -0,0 +1,56 @@
+<?php
+
+ lt_include( PLOG_CLASS_PATH."class/action/admin/adminaction.class.php" );
+ lt_include( PLOG_CLASS_PATH."class/view/admin/ajax/adminajaxview.class.php" );
+
+ /**
+ * Implements specific support for XmlHttpRequest requests
+ */
+ class AdminAjaxAction extends AdminAction
+ {
+ function AdminAjaxAction( $blogInfo, $request )
+ {
+ $this->AdminAction( $blogInfo, $request );
+ }
+
+ function validationErrorProcessing()
+ {
+ // if there was a validaton error, then inform the view
+ $this->_view = $this->_validationErrorView;
+ $this->_view->setSuccess( false );
+ $this->_form->setFormIsValid( false );
+
+ return true;
+ }
+
+ /**
+ * Ajax-specific "access forbidden" page
+ */
+ function mustAuthenticatePage()
+ {
+ lt_include( PLOG_CLASS_PATH."class/data/serialize/serializerfactory.class.php" );
+ print( SerializerFactory::toJson( Array( "success" => false, "message" => "Access forbidden, you must first authenticate" )));
+ die();
+ }
+
+ function setCommonData()
+ {
+ // empty
+ }
+
+ /**
+ * Utility method that will generate a nice AdminAjaxView objects with certain parameters
+ * filled in, used to generate error messages
+ *
+ * @message Message that we'd like to report
+ */
+ function getErrorView( $message = "" )
+ {
+ $view = new AdminAjaxView( $this->_blogInfo, get_class( $this ));
+ $view->setSuccess( false );
+ $view->setMessage( $message );
+
+ return( $view );
+ }
+ }
+?>
\ No newline at end of file
Added: plog/trunk/class/data/serialize/json/jsonserializer.class.php
===================================================================
--- plog/trunk/class/data/serialize/json/jsonserializer.class.php (rev 0)
+++ plog/trunk/class/data/serialize/json/jsonserializer.class.php 2007-03-01 13:50:09 UTC (rev 4902)
@@ -0,0 +1,784 @@
+<?php
+
+lt_include( PLOG_CLASS_PATH."class/data/serialize/serializerbase.class.php" );
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+/**
+ * This is an embedded version of HTML_AJAX_JSON since it has yet to have a PEAR release
+ * it has been renamed to HTML_AJAX_JSON so no problems will be caused by an eventual release
+ * Feel free to report bugs against it to HTML_AJAX
+ */
+
+/**
+ * Converts to and from JSON format.
+ *
+ * JSON (JavaScript Object Notation) is a lightweight data-interchange
+ * format. It is easy for humans to read and write. It is easy for machines
+ * to parse and generate. It is based on a subset of the JavaScript
+ * Programming Language, Standard ECMA-262 3rd Edition - December 1999.
+ * This feature can also be found in Python. JSON is a text format that is
+ * completely language independent but uses conventions that are familiar
+ * to programmers of the C-family of languages, including C, C++, C#, Java,
+ * JavaScript, Perl, TCL, and many others. These properties make JSON an
+ * ideal data-interchange language.
+ *
+ * This package provides a simple encoder and decoder for JSON notation. It
+ * is intended for use with client-side Javascript applications that make
+ * use of HTTPRequest to perform server communication functions - data can
+ * be encoded into JSON notation for use in a client-side javascript, or
+ * decoded from incoming Javascript requests. JSON format is native to
+ * Javascript, and can be directly eval()'ed with no further parsing
+ * overhead
+ *
+ * All strings should be in ASCII or UTF-8 format!
+ *
+ * LICENSE: Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met: Redistributions of source code must retain the
+ * above copyright notice, this list of conditions and the following
+ * disclaimer. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * @category
+ * @package HTML_AJAX_JSON
+ * @author Michal Migurski <mike-json at teczno.com>
+ * @author Matt Knapp <mdknapp[at]gmail[dot]com>
+ * @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
+ * @copyright 2005 Michal Migurski
+ * @license http://www.opensource.org/licenses/bsd-license.php
+ * @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
+ */
+
+/**
+ * Marker constant for HTML_AJAX_JSON::decode(), used to flag stack state
+ */
+define('SERVICES_JSON_SLICE', 1);
+
+/**
+ * Marker constant for HTML_AJAX_JSON::decode(), used to flag stack state
+ */
+define('SERVICES_JSON_IN_STR', 2);
+
+/**
+ * Marker constant for HTML_AJAX_JSON::decode(), used to flag stack state
+ */
+define('SERVICES_JSON_IN_ARR', 3);
+
+/**
+ * Marker constant for HTML_AJAX_JSON::decode(), used to flag stack state
+ */
+define('SERVICES_JSON_IN_OBJ', 4);
+
+/**
+ * Marker constant for HTML_AJAX_JSON::decode(), used to flag stack state
+ */
+define('SERVICES_JSON_IN_CMT', 5);
+
+/**
+ * Behavior switch for HTML_AJAX_JSON::decode()
+ */
+define('SERVICES_JSON_LOOSE_TYPE', 16);
+
+/**
+ * Behavior switch for HTML_AJAX_JSON::decode()
+ */
+define('SERVICES_JSON_SUPPRESS_ERRORS', 32);
+
+/**
+ * Converts to and from JSON format.
+ *
+ * Brief example of use:
+ *
+ * <code>
+ * // create a new instance of HTML_AJAX_JSON
+ * $json = new HTML_AJAX_JSON();
+ *
+ * // convert a complexe value to JSON notation, and send it to the browser
+ * $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
+ * $output = $json->encode($value);
+ *
+ * print($output);
+ * // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
+ *
+ * // accept incoming POST data, assumed to be in JSON notation
+ * $input = file_get_contents('php://input', 1000000);
+ * $value = $json->decode($input);
+ * </code>
+ */
+class JsonSerializer extends SerializerBase
+{
+ /**
+ * constructs a new JSON instance
+ *
+ * @param int $use object behavior flags; combine with boolean-OR
+ *
+ * possible values:
+ * - SERVICES_JSON_LOOSE_TYPE: loose typing.
+ * "{...}" syntax creates associative arrays
+ * instead of objects in decode().
+ * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
+ * Values which can't be encoded (e.g. resources)
+ * appear as NULL instead of throwing errors.
+ * By default, a deeply-nested resource will
+ * bubble up with an error, so all return values
+ * from encode() should be checked with isError()
+ */
+ function JsonSerializer($use = 0)
+ {
+ $this->use = $use;
+ }
+
+ /**
+ * convert a string from one UTF-16 char to one UTF-8 char
+ *
+ * Normally should be handled by mb_convert_encoding, but
+ * provides a slower PHP-only method for installations
+ * that lack the multibye string extension.
+ *
+ * @param string $utf16 UTF-16 character
+ * @return string UTF-8 character
+ * @access private
+ */
+ function utf162utf8($utf16)
+ {
+ // oh please oh please oh please oh please oh please
+ if(function_exists('mb_convert_encoding'))
+ return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
+
+ $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
+
+ switch(true) {
+ case ((0x7F & $bytes) == $bytes):
+ // this case should never be reached, because we are in ASCII range
+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ return chr(0x7F & $bytes);
+
+ case (0x07FF & $bytes) == $bytes:
+ // return a 2-byte UTF-8 character
+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ return chr(0xC0 | (($bytes >> 6) & 0x1F))
+ . chr(0x80 | ($bytes & 0x3F));
+
+ case (0xFFFF & $bytes) == $bytes:
+ // return a 3-byte UTF-8 character
+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ return chr(0xE0 | (($bytes >> 12) & 0x0F))
+ . chr(0x80 | (($bytes >> 6) & 0x3F))
+ . chr(0x80 | ($bytes & 0x3F));
+ }
+
+ // ignoring UTF-32 for now, sorry
+ return '';
+ }
+
+ /**
+ * convert a string from one UTF-8 char to one UTF-16 char
+ *
+ * Normally should be handled by mb_convert_encoding, but
+ * provides a slower PHP-only method for installations
+ * that lack the multibye string extension.
+ *
+ * @param string $utf8 UTF-8 character
+ * @return string UTF-16 character
+ * @access private
+ */
+ function utf82utf16($utf8)
+ {
+ // oh please oh please oh please oh please oh please
+ if(function_exists('mb_convert_encoding'))
+ return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
+
+ switch(strlen($utf8)) {
+ case 1:
+ // this case should never be reached, because we are in ASCII range
+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ return $ut8;
+
+ case 2:
+ // return a UTF-16 character from a 2-byte UTF-8 char
+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ return chr(0x07 & (ord($utf8{0}) >> 2))
+ . chr((0xC0 & (ord($utf8{0}) << 6))
+ | (0x3F & ord($utf8{1})));
+
+ case 3:
+ // return a UTF-16 character from a 3-byte UTF-8 char
+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ return chr((0xF0 & (ord($utf8{0}) << 4))
+ | (0x0F & (ord($utf8{1}) >> 2)))
+ . chr((0xC0 & (ord($utf8{1}) << 6))
+ | (0x7F & ord($utf8{2})));
+ }
+
+ // ignoring UTF-32 for now, sorry
+ return '';
+ }
+
+ /**
+ * encodes an arbitrary variable into JSON format
+ *
+ * @param mixed $var any number, boolean, string, array, or object to be encoded.
+ * see argument 1 to HTML_AJAX_JSON() above for array-parsing behavior.
+ * if var is a strng, note that encode() always expects it
+ * to be in ASCII or UTF-8 format!
+ *
+ * @return mixed JSON string representation of input var or an error if a problem occurs
+ * @access public
+ */
+ function encode($var)
+ {
+ switch (gettype($var)) {
+ case 'boolean':
+ return $var ? 'true' : 'false';
+
+ case 'NULL':
+ return 'null';
+
+ case 'integer':
+ return (int) $var;
+
+ case 'double':
+ case 'float':
+ return (float) $var;
+
+ case 'string':
+ // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
+ $ascii = '';
+ $strlen_var = strlen($var);
+
+ /*
+ * Iterate over every character in the string,
+ * escaping with a slash or encoding to UTF-8 where necessary
+ */
+ for ($c = 0; $c < $strlen_var; ++$c) {
+
+ $ord_var_c = ord($var{$c});
+
+ switch (true) {
+ case $ord_var_c == 0x08:
+ $ascii .= '\b';
+ break;
+ case $ord_var_c == 0x09:
+ $ascii .= '\t';
+ break;
+ case $ord_var_c == 0x0A:
+ $ascii .= '\n';
+ break;
+ case $ord_var_c == 0x0C:
+ $ascii .= '\f';
+ break;
+ case $ord_var_c == 0x0D:
+ $ascii .= '\r';
+ break;
+
+ case $ord_var_c == 0x22:
+ case $ord_var_c == 0x2F:
+ case $ord_var_c == 0x5C:
+ // double quote, slash, slosh
+ $ascii .= '\\'.$var{$c};
+ break;
+
+ case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
+ // characters U-00000000 - U-0000007F (same as ASCII)
+ $ascii .= $var{$c};
+ break;
+
+ case (($ord_var_c & 0xE0) == 0xC0):
+ // characters U-00000080 - U-000007FF, mask 110XXXXX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $char = pack('C*', $ord_var_c, ord($var{$c + 1}));
+ $c += 1;
+ $utf16 = $this->utf82utf16($char);
+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
+ break;
+
+ case (($ord_var_c & 0xF0) == 0xE0):
+ // characters U-00000800 - U-0000FFFF, mask 1110XXXX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $char = pack('C*', $ord_var_c,
+ ord($var{$c + 1}),
+ ord($var{$c + 2}));
+ $c += 2;
+ $utf16 = $this->utf82utf16($char);
+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
+ break;
+
+ case (($ord_var_c & 0xF8) == 0xF0):
+ // characters U-00010000 - U-001FFFFF, mask 11110XXX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $char = pack('C*', $ord_var_c,
+ ord($var{$c + 1}),
+ ord($var{$c + 2}),
+ ord($var{$c + 3}));
+ $c += 3;
+ $utf16 = $this->utf82utf16($char);
+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
+ break;
+
+ case (($ord_var_c & 0xFC) == 0xF8):
+ // characters U-00200000 - U-03FFFFFF, mask 111110XX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $char = pack('C*', $ord_var_c,
+ ord($var{$c + 1}),
+ ord($var{$c + 2}),
+ ord($var{$c + 3}),
+ ord($var{$c + 4}));
+ $c += 4;
+ $utf16 = $this->utf82utf16($char);
+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
+ break;
+
+ case (($ord_var_c & 0xFE) == 0xFC):
+ // characters U-04000000 - U-7FFFFFFF, mask 1111110X
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $char = pack('C*', $ord_var_c,
+ ord($var{$c + 1}),
+ ord($var{$c + 2}),
+ ord($var{$c + 3}),
+ ord($var{$c + 4}),
+ ord($var{$c + 5}));
+ $c += 5;
+ $utf16 = $this->utf82utf16($char);
+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
+ break;
+ }
+ }
+
+ return '"'.$ascii.'"';
+
+ case 'array':
+ /*
+ * As per JSON spec if any array key is not an integer
+ * we must treat the the whole array as an object. We
+ * also try to catch a sparsely populated associative
+ * array with numeric keys here because some JS engines
+ * will create an array with empty indexes up to
+ * max_index which can cause memory issues and because
+ * the keys, which may be relevant, will be remapped
+ * otherwise.
+ *
+ * As per the ECMA and JSON specification an object may
+ * have any string as a property. Unfortunately due to
+ * a hole in the ECMA specification if the key is a
+ * ECMA reserved word or starts with a digit the
+ * parameter is only accessible using ECMAScript's
+ * bracket notation.
+ */
+
+ // treat as a JSON object
+ if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
+ $properties = array_map(array($this, 'name_value'),
+ array_keys($var),
+ array_values($var));
+
+ foreach($properties as $property)
+ if(JsonSerializer::isError($property))
+ return $property;
+
+ return '{' . join(',', $properties) . '}';
+ }
+
+ // treat it like a regular array
+ $elements = array_map(array($this, 'encode'), $var);
+
+ foreach($elements as $element)
+ if(JsonSerializer::isError($element))
+ return $element;
+
+ return '[' . join(',', $elements) . ']';
+
+ case 'object':
+ $vars = get_object_vars($var);
+
+ $properties = array_map(array($this, 'name_value'),
+ array_keys($vars),
+ array_values($vars));
+
+ foreach($properties as $property)
+ if(JsonSerializer::isError($property))
+ return $property;
+
+ return '{' . join(',', $properties) . '}';
+
+ default:
+ return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
+ ? 'null'
+ : new JsonSerializer_Error(gettype($var)." can not be encoded as JSON string");
+ }
+ }
+
+ /**
+ * array-walking function for use in generating JSON-formatted name-value pairs
+ *
+ * @param string $name name of key to use
+ * @param mixed $value reference to an array element to be encoded
+ *
+ * @return string JSON-formatted name-value pair, like '"name":value'
+ * @access private
+ */
+ function name_value($name, $value)
+ {
+ $encoded_value = $this->encode($value);
+
+ if(JsonSerializer::isError($encoded_value))
+ return $encoded_value;
+
+ return $this->encode(strval($name)) . ':' . $encoded_value;
+ }
+
+ /**
+ * reduce a string by removing leading and trailing comments and whitespace
+ *
+ * @param $str string string value to strip of comments and whitespace
+ *
+ * @return string string value stripped of comments and whitespace
+ * @access private
+ */
+ function reduce_string($str)
+ {
+ $str = preg_replace(array(
+
+ // eliminate single line comments in '// ...' form
+ '#^\s*//(.+)$#m',
+
+ // eliminate multi-line comments in '/* ... */' form, at start of string
+ '#^\s*/\*(.+)\*/#Us',
+
+ // eliminate multi-line comments in '/* ... */' form, at end of string
+ '#/\*(.+)\*/\s*$#Us'
+
+ ), '', $str);
+
+ // eliminate extraneous space
+ return trim($str);
+ }
+
+ /**
+ * decodes a JSON string into appropriate variable
+ *
+ * @param string $str JSON-formatted string
+ *
+ * @return mixed number, boolean, string, array, or object
+ * corresponding to given JSON input string.
+ * See argument 1 to HTML_AJAX_JSON() above for object-output behavior.
+ * Note that decode() always returns strings
+ * in ASCII or UTF-8 format!
+ * @access public
+ */
+ function decode($str)
+ {
+ $str = $this->reduce_string($str);
+
+ switch (strtolower($str)) {
+ case 'true':
+ return true;
+
+ case 'false':
+ return false;
+
+ case 'null':
+ return null;
+
+ default:
+ if (is_numeric($str)) {
+ // Lookie-loo, it's a number
+
+ // This would work on its own, but I'm trying to be
+ // good about returning integers where appropriate:
+ // return (float)$str;
+
+ // Return float or int, as appropriate
+ return ((float)$str == (integer)$str)
+ ? (integer)$str
+ : (float)$str;
+
+ } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
+ // STRINGS RETURNED IN UTF-8 FORMAT
+ $delim = substr($str, 0, 1);
+ $chrs = substr($str, 1, -1);
+ $utf8 = '';
+ $strlen_chrs = strlen($chrs);
+
+ for ($c = 0; $c < $strlen_chrs; ++$c) {
+
+ $substr_chrs_c_2 = substr($chrs, $c, 2);
+ $ord_chrs_c = ord($chrs{$c});
+
+ switch (true) {
+ case $substr_chrs_c_2 == '\b':
+ $utf8 .= chr(0x08);
+ ++$c;
+ break;
+ case $substr_chrs_c_2 == '\t':
+ $utf8 .= chr(0x09);
+ ++$c;
+ break;
+ case $substr_chrs_c_2 == '\n':
+ $utf8 .= chr(0x0A);
+ ++$c;
+ break;
+ case $substr_chrs_c_2 == '\f':
+ $utf8 .= chr(0x0C);
+ ++$c;
+ break;
+ case $substr_chrs_c_2 == '\r':
+ $utf8 .= chr(0x0D);
+ ++$c;
+ break;
+
+ case $substr_chrs_c_2 == '\\"':
+ case $substr_chrs_c_2 == '\\\'':
+ case $substr_chrs_c_2 == '\\\\':
+ case $substr_chrs_c_2 == '\\/':
+ if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
+ ($delim == "'" && $substr_chrs_c_2 != '\\"')) {
+ $utf8 .= $chrs{++$c};
+ }
+ break;
+
+ case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)):
+ // single, escaped unicode character
+ $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
+ . chr(hexdec(substr($chrs, ($c + 4), 2)));
+ $utf8 .= $this->utf162utf8($utf16);
+ $c += 5;
+ break;
+
+ case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
+ $utf8 .= $chrs{$c};
+ break;
+
+ case ($ord_chrs_c & 0xE0) == 0xC0:
+ // characters U-00000080 - U-000007FF, mask 110XXXXX
+ //see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $utf8 .= substr($chrs, $c, 2);
+ ++$c;
+ break;
+
+ case ($ord_chrs_c & 0xF0) == 0xE0:
+ // characters U-00000800 - U-0000FFFF, mask 1110XXXX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $utf8 .= substr($chrs, $c, 3);
+ $c += 2;
+ break;
+
+ case ($ord_chrs_c & 0xF8) == 0xF0:
+ // characters U-00010000 - U-001FFFFF, mask 11110XXX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $utf8 .= substr($chrs, $c, 4);
+ $c += 3;
+ break;
+
+ case ($ord_chrs_c & 0xFC) == 0xF8:
+ // characters U-00200000 - U-03FFFFFF, mask 111110XX
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $utf8 .= substr($chrs, $c, 5);
+ $c += 4;
+ break;
+
+ case ($ord_chrs_c & 0xFE) == 0xFC:
+ // characters U-04000000 - U-7FFFFFFF, mask 1111110X
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ $utf8 .= substr($chrs, $c, 6);
+ $c += 5;
+ break;
+
+ }
+
+ }
+
+ return $utf8;
+
+ } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
+ // array, or object notation
+
+ if ($str{0} == '[') {
+ $stk = array(SERVICES_JSON_IN_ARR);
+ $arr = array();
+ } else {
+ if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
+ $stk = array(SERVICES_JSON_IN_OBJ);
+ $obj = array();
+ } else {
+ $stk = array(SERVICES_JSON_IN_OBJ);
+ $obj = new stdClass();
+ }
+ }
+
+ array_push($stk, array('what' => SERVICES_JSON_SLICE,
+ 'where' => 0,
+ 'delim' => false));
+
+ $chrs = substr($str, 1, -1);
+ $chrs = $this->reduce_string($chrs);
+
+ if ($chrs == '') {
+ if (reset($stk) == SERVICES_JSON_IN_ARR) {
+ return $arr;
+
+ } else {
+ return $obj;
+
+ }
+ }
+
+ //print("\nparsing {$chrs}\n");
+
+ $strlen_chrs = strlen($chrs);
+
+ for ($c = 0; $c <= $strlen_chrs; ++$c) {
+
+ $top = end($stk);
+ $substr_chrs_c_2 = substr($chrs, $c, 2);
+
+ if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
+ // found a comma that is not inside a string, array, etc.,
+ // OR we've reached the end of the character list
+ $slice = substr($chrs, $top['where'], ($c - $top['where']));
+ array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
+ //print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
+
+ if (reset($stk) == SERVICES_JSON_IN_ARR) {
+ // we are in an array, so just push an element onto the stack
+ array_push($arr, $this->decode($slice));
+
+ } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
+ // we are in an object, so figure
+ // out the property name and set an
+ // element in an associative array,
+ // for now
+ if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
+ // "name":value pair
+ $key = $this->decode($parts[1]);
+ $val = $this->decode($parts[2]);
+
+ if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
+ $obj[$key] = $val;
+ } else {
+ $obj->$key = $val;
+ }
+ } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
+ // name:value pair, where name is unquoted
+ $key = $parts[1];
+ $val = $this->decode($parts[2]);
+
+ if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
+ $obj[$key] = $val;
+ } else {
+ $obj->$key = $val;
+ }
+ }
+
+ }
+
+ } elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
+ // found a quote, and we are not inside a string
+ array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c}));
+ //print("Found start of string at {$c}\n");
+
+ } elseif (($chrs{$c} == $top['delim']) &&
+ ($top['what'] == SERVICES_JSON_IN_STR) &&
+ (($chrs{$c - 1} != '\\') ||
+ ($chrs{$c - 1} == '\\' && $chrs{$c - 2} == '\\'))) {
+ // found a quote, we're in a string, and it's not escaped
+ array_pop($stk);
+ //print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
+
+ } elseif (($chrs{$c} == '[') &&
+ in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
+ // found a left-bracket, and we are in an array, object, or slice
+ array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false));
+ //print("Found start of array at {$c}\n");
+
+ } elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
+ // found a right-bracket, and we're in an array
+ array_pop($stk);
+ //print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
+
+ } elseif (($chrs{$c} == '{') &&
+ in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
+ // found a left-brace, and we are in an array, object, or slice
+ array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false));
+ //print("Found start of object at {$c}\n");
+
+ } elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
+ // found a right-brace, and we're in an object
+ array_pop($stk);
+ //print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
+
+ } elseif (($substr_chrs_c_2 == '/*') &&
+ in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
+ // found a comment start, and we are in an array, object, or slice
+ array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false));
+ $c++;
+ //print("Found start of comment at {$c}\n");
+
+ } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) {
+ // found a comment end, and we're in one now
+ array_pop($stk);
+ $c++;
+
+ for ($i = $top['where']; $i <= $c; ++$i)
+ $chrs = substr_replace($chrs, ' ', $i, 1);
+
+ //print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
+
+ }
+
+ }
+
+ if (reset($stk) == SERVICES_JSON_IN_ARR) {
+ return $arr;
+
+ } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
+ return $obj;
+
+ }
+
+ }
+ }
+ }
+
+ /**
+ * @todo Ultimately, this should just call PEAR::isError()
+ */
+ function isError($data, $code = null)
+ {
+ if (class_exists('pear')) {
+ return PEAR::isError($data, $code);
+ } elseif (is_object($data) && (get_class($data) == 'services_json_error' ||
+ is_subclass_of($data, 'services_json_error'))) {
+ return true;
+ }
+
+ return false;
+ }
+}
+
+/**
+ * @todo Ultimately, this class shall be descended from PEAR_Error
+ */
+class JsonSerializer_Error
+{
+ function JsonSerializer_Error($message = 'unknown error', $code = null,
+ $mode = null, $options = null, $userinfo = null)
+ {
+
+ }
+}
+
+?>
Added: plog/trunk/class/data/serialize/serializerbase.class.php
===================================================================
--- plog/trunk/class/data/serialize/serializerbase.class.php (rev 0)
+++ plog/trunk/class/data/serialize/serializerbase.class.php 2007-03-01 13:50:09 UTC (rev 4902)
@@ -0,0 +1,20 @@
+<?php
+
+ /**
+ * Interface class that all serializer classes must implement
+ */
+ class SerializerBase
+ {
+ /**
+ * Returns a serialized string, given data. Data can be an object, string, array or any of the
+ * types supported by PHP.
+ *
+ * @param data The data to encode
+ * @param Encoded data, the format depends on the class that is doing the encoding.
+ */
+ function encode( $data )
+ {
+ throw( new Exception( "This method must be implemented by child classes" ));
+ }
+ }
+?>
\ No newline at end of file
Added: plog/trunk/class/data/serialize/serializerfactory.class.php
===================================================================
--- plog/trunk/class/data/serialize/serializerfactory.class.php (rev 0)
+++ plog/trunk/class/data/serialize/serializerfactory.class.php 2007-03-01 13:50:09 UTC (rev 4902)
@@ -0,0 +1,44 @@
+<?php
+
+ /**
+ * Factory class used to obtain references to the serializer classes. Static
+ * shortcut methods can also be used
+ *
+ * @see SerializerFactory::toJson()
+ */
+ class SerializerFactory
+ {
+ /**
+ * Returns an instance of a serializer class
+ *
+ * @param format One of the following: "json"
+ */
+ function getSerializer( $format )
+ {
+ $serializerClassPath = PLOG_CLASS_PATH."class/data/serialize/$format/{$format}serializer.class.php";
+ if( File::isReadable( $serializerClassPath )) {
+ lt_include( $serializerClassPath );
+ $className = $format."serializer";
+ $class = new $className();
+ }
+ else {
+ throw( new Exception( "Error loading serialization class for format $format" ));
+ }
+
+ return( $class );
+ }
+
+ /**
+ * Serializes data to json
+ *
+ * @param data
+ * @return Serialized data in JSon format
+ */
+ function toJson( $data )
+ {
+ lt_include( PLOG_CLASS_PATH."class/data/serialize/json/jsonserializer.class.php" );
+ $json = new JsonSerializer();
+ return( $json->encode( $data ));
+ }
+ }
+?>
\ No newline at end of file
Added: plog/trunk/class/view/admin/ajax/adminajaxview.class.php
===================================================================
--- plog/trunk/class/view/admin/ajax/adminajaxview.class.php (rev 0)
+++ plog/trunk/class/view/admin/ajax/adminajaxview.class.php 2007-03-01 13:50:09 UTC (rev 4902)
@@ -0,0 +1,47 @@
+<?php
+
+ lt_include( PLOG_CLASS_PATH."class/view/admin//adminview.class.php" );
+
+ class AdminAjaxView extends AdminView
+ {
+ function AjaxView( $blogInfo, $method = "" )
+ {
+ $this->AdminView( $blogInfo );
+
+ $this->_params = new Properties();
+
+ $this->setValue( "method", $method );
+ }
+
+ function setSuccess( $success )
+ {
+ $this->setValue( "success", $success );
+ }
+
+ function setMessage( $message )
+ {
+ $this->setValue( "message", $message );
+ }
+
+ function setResult( $result )
+ {
+ $this->setValue( "result", $result );
+ }
+
+ function render()
+ {
+ // simply serialize the array with the parameters as json stream and send it to the client
+ lt_include( PLOG_CLASS_PATH."class/data/serialize/serializerfactory.class.php" );
+
+ $data = $this->_params->getAsArray();
+ if( isset( $data["blog"] )) unset( $data["blog"] );
+ if( isset( $data["locale"] )) unset( $data["locale"] );
+ if( isset( $data["url"] )) unset( $data["url"] );
+ if( isset( $data["config"] )) unset( $data["config"] );
+ if( isset( $data["blogsettings"] )) unset( $data["blogsettings"] );
+ if( isset( $data["form"] )) unset( $data["blogsettings"] );
+
+ print( SerializerFactory::toJson( $data ));
+ }
+ }
+?>
\ No newline at end of file
Modified: plog/trunk/js/location/location.js
===================================================================
--- plog/trunk/js/location/location.js 2007-03-01 13:45:38 UTC (rev 4901)
+++ plog/trunk/js/location/location.js 2007-03-01 13:50:09 UTC (rev 4902)
@@ -276,9 +276,10 @@
*/
function __handleUpdateLocationAjaxResponse( o )
{
- var xmldoc = o.responseXML;
- var success = xmldoc.getElementsByTagName('success')[0].firstChild.nodeValue
- var message = xmldoc.getElementsByTagName('message')[0].firstChild.nodeValue;
+ // decode the JSon message and get the fields that we need
+ var msg = Lifetype.JSon.decode( o.responseText );
+ var success = msg.success;
+ var message = msg.message;
// there was an error, let's not continue...
if( success == 0 ) {
@@ -290,9 +291,9 @@
window.alert( message );
// get the id of the updated location from the response message
- var locId = xmldoc.getElementsByTagName('id')[0].firstChild.nodeValue;
+ var locId = msg.result._id;
// and the description
- var locDesc = xmldoc.getElementsByTagName('desc')[0].firstChild.nodeValue;
+ var locDesc = msg.result._desc;
// get the list that holds the locations and if it's there, then
// update the one that we just moved around
@@ -324,9 +325,11 @@
*/
function __handleAddLocationAjaxResponse( o )
{
- var xmldoc = o.responseXML;
- var success = xmldoc.getElementsByTagName('success')[0].firstChild.nodeValue
- var message = xmldoc.getElementsByTagName('message')[0].firstChild.nodeValue;
+
+ // decode the JSon message and get the fields that we need
+ var msg = Lifetype.JSon.decode( o.responseText );
+ var success = msg.success;
+ var message = msg.message;
// there was an error, let's not continue...
if( success == 0 ) {
@@ -335,9 +338,9 @@
}
// get the id of the updated location from the response message
- var locId = xmldoc.getElementsByTagName('id')[0].firstChild.nodeValue;
+ var locId = msg.result._id;
// and the description
- var locDesc = xmldoc.getElementsByTagName('desc')[0].firstChild.nodeValue;
+ var locDesc = msg.result._desc;
// get the list that holds the locations and if it's there, then
// update the one that we just moved around
Modified: plog/trunk/js/ui/core.js
===================================================================
--- plog/trunk/js/ui/core.js 2007-03-01 13:45:38 UTC (rev 4901)
+++ plog/trunk/js/ui/core.js 2007-03-01 13:50:09 UTC (rev 4902)
@@ -84,4 +84,19 @@
Lifetype.UI = function()
{
// nothing yet
+}
+
+/**
+ * JSon related code
+ */
+Lifetype.JSon = function() {}
+
+/**
+ * Decode the given JSon string and return the result
+ *
+ * @param code
+ */
+Lifetype.JSon.decode = function( code )
+{
+ return( eval('(' + code + ')'));
}
\ No newline at end of file
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