More work on Javascript and CSS dispatchers

darcs-hash:20051029185222-7ad00-c184ab3496539f3027407c7d17e8770a1849546a.gz

1 files changed, 331 insertions, 0 deletions

diff --git a/lib/exe/js.php b/lib/exe/js.php
new file mode 100644
index 000000000..9708dbc0d
--- /dev/null
+++ b/lib/exe/js.php
@@ -0,0 +1,331 @@
+<?php
+/**
+ * DokuWiki JavaScript creator
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Andreas Gohr <andi@splitbrain.org>
+ */
+
+if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
+define('NOSESSION',true); // we do not use a session or authentication here (better caching)
+require_once(DOKU_INC.'inc/init.php');
+require_once(DOKU_INC.'inc/pageutils.php');
+require_once(DOKU_INC.'inc/io.php');
+
+// Main (don't run when UNIT test)
+if(!defined('SIMPLE_TEST')){
+    header('Content-Type: text/javascript; charset=utf-8');
+    js_out();
+    js_dynamicout();
+}
+
+
+// ---------------------- functions ------------------------------
+
+/**
+ * Output all needed JavaScript
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function js_out(){
+    global $conf;
+    global $lang;
+    $edit  = (bool) $_REQUEST['edit'];   // edit or preview mode?
+    $write = (bool) $_REQUEST['write'];  // writable?
+
+    // The generated script depends on some dynamic options
+    $cache = getCacheName('scripts'.$edit.$write,'.js'); 
+
+    // Array of needed files
+    $files = array(
+                DOKU_INC.'lib/scripts/events.js',
+                DOKU_INC.'lib/scripts/script.js',
+                DOKU_INC.'lib/scripts/tw-sack.js',
+                DOKU_INC.'lib/scripts/ajax.js',
+                DOKU_INC.'lib/scripts/domLib.js',
+                DOKU_INC.'lib/scripts/domTT.js',
+             );
+    if($edit && $write){
+        $files[] = DOKU_INC.'lib/scripts/edit.js';
+        if($conf['spellchecker']){
+            $files[] = DOKU_INC.'lib/scripts/spellcheck.js';
+        }
+    }
+
+    // get possible plugin scripts
+    $plugins = js_pluginscripts();
+
+    // check cache age here
+    if(js_cacheok($cache,array_merge($files,$plugins))){
+        readfile($cache);
+        return;
+    }
+
+    // start output buffering and build the script
+    ob_start();
+
+    // add some translation strings and global variables
+    print "var alertText   = '".str_replace('\\\\n','\\n',addslashes($lang['qb_alert']))."';";
+    print "var notSavedYet = '".str_replace('\\\\n','\\n',addslashes($lang['notsavedyet']))."';";
+    print "var DOKU_BASE   = '".DOKU_BASE."';";
+
+    // load files
+    foreach($files as $file){
+        readfile($file);
+    }
+
+    // init stuff
+    js_runonstart("ajax_qsearch.init('qsearch_in','qsearch_out')");
+    js_runonstart("addEvent(document,'click',closePopups)");
+
+    if($edit){
+        // size controls
+        js_runonstart("initSizeCtl('sizectl','wikitext')");
+
+        if($write){
+            require_once(DOKU_INC.'inc/toolbar.php');
+            toolbar_JSdefines('toolbar');
+            js_runonstart("initToolbar('toolbar','wikitext',toolbar)");
+
+            // add pageleave check
+            js_runonstart("initChangeCheck('".js_escape($lang['notsavedyet'])."')");
+
+            // add lock timer
+            js_runonstart("init_locktimer(".($conf['locktime']-60).",'".js_escape($lang['willexpire'])."')");
+
+            // load spell checker
+            if($conf['spellchecker']){
+                js_runonstart("ajax_spell.init('".
+                               js_escape($lang['spell_start'])."','".
+                               js_escape($lang['spell_stop'])."','".
+                               js_escape($lang['spell_wait'])."','".
+                               js_escape($lang['spell_noerr'])."','".
+                               js_escape($lang['spell_nosug'])."','".
+                               js_escape($lang['spell_change'])."')");
+            }
+        }
+    }
+
+    // load plugin scripts (suppress warnings for missing ones)
+    foreach($plugins as $plugin){
+        @readfile($plugin);
+    }
+
+    // load user script
+    @readfile(DOKU_CONF.'userscript.js');
+
+    // end output buffering and get contents
+    $js = ob_get_contents();
+    ob_end_clean();
+
+    // compress whitespace and comments
+    if($conf['compress']){
+        $js = js_compress($js);
+    }
+
+    // save cache file
+    io_saveFile($cache,$js);
+
+    // finally send output
+    print $js;
+}
+
+/**
+ * Adds some dynamic JavaScript using the readonly Session
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function js_dynamicout(){
+    $edit  = (bool) $_REQUEST['edit'];   // edit or preview mode?
+    $write = (bool) $_REQUEST['write'];  // writable?
+    $sig   = (bool) $_REQUEST['sig'];    // show sig button?
+    if($edit && $write && $sig){
+        require_once(DOKU_INC.'inc/toolbar.php');
+        toolbar_addsigbutton('toolbar');
+    }
+}
+
+/**
+ * Checks if a JavaScript Cache file still is valid
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function js_cacheok($cache,$files){
+    $ctime = @filemtime($cache);
+    if(!$ctime) return false; //There is no cache
+
+    // some additional files to check
+    $files[] = DOKU_CONF.'dokuwiki.conf';
+    $files[] = DOKU_CONF.'local.conf';
+    $files[] = DOKU_CONF.'userscript.js';
+    $files[] = __FILE__;
+
+    // now walk the files
+    foreach($files as $file){
+        if(@filemtime($file) > $ctime){
+            return false;
+        }
+    }
+    return true;
+}
+
+/**
+ * Returns a list of possible Plugin Scripts (no existance check here)
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function js_pluginscripts(){
+    $list = array();
+    $plugins = plugin_list();
+    foreach ($plugins as $p){
+        $list[] = DOKU_PLUGIN."$p/script.js";
+    }
+    return $list;
+}
+
+/**
+ * Escapes a String to be embedded in a JavaScript call, keeps \n
+ * as newline
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function js_escape($string){
+    return str_replace('\\\\n','\\n',addslashes($string));
+}
+
+/**
+ * Adds the given JavaScript code to the window.onload() event
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function js_runonstart($func){
+    print "addEvent(window,'load',function(){ $func; });";
+}
+
+/**
+ * Strip comments and whitespaces from given JavaScript Code
+ *
+ * This is a rewrite of Nick Galbreaths python tool jsstrip.py which is
+ * released under BSD license. See link for original code.
+ *
+ * @author Nick Galbreath <nickg@modp.com>
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @link http://modp.com/release/jsstrip/
+ */
+function js_compress($s){
+    $i = 0;
+    $line = 0;
+    $s .= "\n";
+    $len = strlen($s);
+
+    // items that don't need spaces next to them
+    $chars = '^&|!+\-*\/%=:;,{}()<>% \t\n\r';
+
+    ob_start();
+    while($i < $len){
+        $ch = $s{$i};
+
+        // multiline comments
+        if($ch == '/' && $s{$i+1} == '*'){
+            $endC = strpos($s,'*/',$i+2);
+            if($endC === false) trigger_error('Found invalid /*..*/ comment', E_USER_ERROR);
+            $i = $endC + 2;
+            continue;
+        }
+
+        // singleline
+        if($ch == '/' && $s{$i+1} == '/'){
+            $endC = strpos($s,"\n",$i+2);
+            if($endC === false) trigger_error('Invalid comment', E_USER_ERROR);
+            $i = $endC;
+            continue;
+        }
+
+        // tricky.  might be an RE
+        if($ch == '/'){
+            // rewind, skip white space
+            $j = 1;
+            while($s{$i-$j} == ' '){
+                $j = $j + 1;
+            }
+            if( ($s{$i-$j} == '=') || ($s{$i-$j} == '(') ){
+                // yes, this is an re
+                // now move forward and find the end of it
+                $j = 1;
+                while($s{$i+$j} != '/'){
+                    while( ($s{$i+$j} != '\\') && ($s{$i+$j} != '/')){
+                        $j = $j + 1;
+                    }
+                    if($s{$i+$j} == '\\') $j = $j + 2;
+                }
+                echo substr($s,$i,$j+1);
+                $i = $i + $j + 1;
+                continue;
+            }
+        }
+
+        // double quote strings
+        if($ch == '"'){
+            $j = 1;
+            while( $s{$i+$j} != '"' ){
+                while( ($s{$i+$j} != '\\') && ($s{$i+$j} != '"') ){
+                    $j = $j + 1;
+                }
+                if($s{$i+$j} == '\\') $j = $j + 2;
+            }
+            echo substr($s,$i,$j+1);
+            $i = $i + $j + 1;
+            continue;
+        }
+
+        // single quote strings
+        if($ch == "'"){
+            $j = 1;
+            while( $s{$i+$j} != "'" ){
+                while( ($s{$i+$j} != '\\') && ($s{$i+$j} != "'") ){
+                    $j = $j + 1;
+                }
+                if ($s{$i+$j} == '\\') $j = $j + 2;
+            }
+            echo substr($s,$i,$j+1);
+            $i = $i + $j + 1;
+            continue;
+        }
+
+        // newlines
+        if($ch == "\n" || $ch == "\r"){
+            $i = $i+1;
+            continue;
+        }
+
+        // leading spaces
+        if( ( $ch == ' ' ||
+              $ch == "\n" ||
+              $ch == "\t" ) &&
+            !preg_match('/['.$chars.']/',$s{$i+1}) ){
+            $i = $i+1;
+            continue;
+        }
+
+        // trailing spaces
+        if( ( $ch == ' ' ||
+              $ch == "\n" ||
+              $ch == "\t" ) &&
+            !preg_match('/['.$chars.']/',$s{$i-1}) ){
+            $i = $i+1;
+            continue;
+        }
+
+        // other chars
+        echo $ch;
+        $i = $i + 1;
+    }
+
+
+    $out = ob_get_contents();
+    ob_end_clean();
+    return $out;
+}
+
+//Setup VIM: ex: et ts=4 enc=utf-8 :
+?>