--- loncom/interface/loncommon.pm	2013/06/04 23:12:08	1.1132
+++ loncom/interface/loncommon.pm	2013/07/22 11:46:23	1.1141
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1132 2013/06/04 23:12:08 raeburn Exp $
+# $Id: loncommon.pm,v 1.1141 2013/07/22 11:46:23 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2349,6 +2349,10 @@ Outputs:
 
 =item * $clientos
 
+=item * $clientmobile
+
+=item * $clientinfo
+
 =back
 
 =back 
@@ -2367,6 +2371,7 @@ sub decode_user_agent {
     my $clientversion='0';
     my $clientmathml='';
     my $clientunicode='0';
+    my $clientmobile=0;
     for (my $i=0;$i<=$#browsertype;$i++) {
         my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
 	if (($httpbrowser=~/$match/i)  && ($httpbrowser!~/$notmatch/i)) {
@@ -2378,6 +2383,7 @@ sub decode_user_agent {
 	}
     }
     my $clientos='unknown';
+    my $clientinfo;
     if (($httpbrowser=~/linux/i) ||
         ($httpbrowser=~/unix/i) ||
         ($httpbrowser=~/ux/i) ||
@@ -2389,8 +2395,16 @@ sub decode_user_agent {
         ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
     if ($httpbrowser=~/win/i) { $clientos='win'; }
     if ($httpbrowser=~/embed/i) { $clientos='pda'; }
+    if ($httpbrowser=~/(Android|iPod|iPad|iPhone|webOS|Blackberry|Windows Phone|Opera m(?:ob|in)|Fennec)/i) {
+        $clientmobile=lc($1);
+    }
+    if ($httpbrowser=~ m{Firefox/(\d+\.\d+)}) {
+        $clientinfo = 'firefox-'.$1;
+    } elsif ($httpbrowser=~ m{chromeframe/(\d+\.\d+)\.}) {
+        $clientinfo = 'chromeframe-'.$1;
+    }
     return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
-            $clientunicode,$clientos,);
+            $clientunicode,$clientos,$clientmobile,$clientinfo);
 }
 
 ###############################################################
@@ -7312,6 +7326,11 @@ ADDMETA
 	.'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
         .$inhibitprint
 	.$head_extra;
+    if ($env{'browser.mobile'}) {
+        $result .= '
+<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
+<meta name="apple-mobile-web-app-capable" content="yes" />';
+    }
     return $result.'</head>';
 }
 
@@ -7645,12 +7664,12 @@ var modalWindow = {
 		$(".LCmodal-overlay").click(function(){modalWindow.close();});
 	}
 };
-	var openMyModal = function(source,width,height,scrolling)
+	var openMyModal = function(source,width,height,scrolling,transparency,style)
 	{
 		modalWindow.windowId = "myModal";
 		modalWindow.width = width;
 		modalWindow.height = height;
-		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='true' src='" + source + "'>&lt/iframe>";
+		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='"+transparency+"' src='" + source + "' style='"+style+"'>&lt/iframe>";
 		modalWindow.open();
 	};	
 // END LON-CAPA Internal -->
@@ -7660,16 +7679,18 @@ ENDMODAL
 }
 
 sub modal_link {
-    my ($link,$linktext,$width,$height,$target,$scrolling,$title)=@_;
+    my ($link,$linktext,$width,$height,$target,$scrolling,$title,$transparency,$style)=@_;
     unless ($width) { $width=480; }
     unless ($height) { $height=400; }
     unless ($scrolling) { $scrolling='yes'; }
+    unless ($transparency) { $transparency='true'; }
+
     my $target_attr;
     if (defined($target)) {
         $target_attr = 'target="'.$target.'"';
     }
     return <<"ENDLINK";
-<a href="$link" $target_attr title="$title" onclick="javascript:openMyModal('$link',$width,$height,'$scrolling'); return false;">
+<a href="$link" $target_attr title="$title" onclick="javascript:openMyModal('$link',$width,$height,'$scrolling','$transparency','$style'); return false;">
            $linktext</a>
 ENDLINK
 }
@@ -7696,11 +7717,11 @@ sub modal_adhoc_inner {
     my ($funcname,$width,$height,$content)=@_;
     my $innerwidth=$width-20;
     $content=&js_ready(
-               &start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).
-                 &start_scrollbox($width.'px',$innerwidth.'px',$height.'px').
-                    $content.
+                 &start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).
+                 &start_scrollbox($width.'px',$innerwidth.'px',$height.'px','myModal','#FFFFFF',undef,1).
+                 $content.
                  &end_scrollbox().
-               &end_page()
+                 &end_page()
              );
     return &modal_adhoc_script($funcname,$width,$height,$content);
 }
@@ -7917,20 +7938,27 @@ sub validate_page {
 
 
 sub start_scrollbox {
-    my ($outerwidth,$width,$height,$id,$bgcolor)=@_;
+    my ($outerwidth,$width,$height,$id,$bgcolor,$cursor,$needjsready) = @_;
     unless ($outerwidth) { $outerwidth='520px'; }
     unless ($width) { $width='500px'; }
     unless ($height) { $height='200px'; }
     my ($table_id,$div_id,$tdcol);
     if ($id ne '') {
-        $table_id = " id='table_$id'";
-        $div_id = " id='div_$id'";
+        $table_id = ' id="table_'.$id.'"';
+        $div_id = ' id="div_'.$id.'"';
     }
     if ($bgcolor ne '') {
         $tdcol = "background-color: $bgcolor;";
     }
+    my $nicescroll_js;
+    if ($env{'browser.mobile'}) {
+        $nicescroll_js = &nicescroll_javascript('div_'.$id,$cursor,$needjsready);
+    }
     return <<"END";
-<table style="width: $outerwidth; border: 1px solid none;"$table_id><tr><td style="width: $width;$tdcol"><div style="overflow:auto; width:$width; height: $height;"$div_id>
+$nicescroll_js
+
+<table style="width: $outerwidth; border: 1px solid none;"$table_id><tr><td style="width: $width;$tdcol">
+<div style="overflow:auto; width:$width; height:$height;"$div_id>
 END
 }
 
@@ -7938,6 +7966,87 @@ sub end_scrollbox {
     return '</div></td></tr></table>';
 }
 
+sub nicescroll_javascript {
+    my ($id,$cursor,$needjsready,$framecheck,$location) = @_;
+    my %options;
+    if (ref($cursor) eq 'HASH') {
+        %options = %{$cursor};
+    }
+    unless ($options{'railalign'} =~ /^left|right$/) {
+        $options{'railalign'} = 'left';
+    }
+    unless ($options{'cursorcolor'} =~ /^\#\w+$/) {
+        my $function  = &get_users_function();
+        $options{'cursorcolor'} = &designparm($function.'.sidebg',$env{'request.role.domain'});
+        unless ($options{'cursorcolor'} =~ /^\#\w+$/) {
+            $options{'cursorcolor'} = '#00F';
+        }
+    }
+    if ($options{'cursoropacity'} =~ /^[\d.]+$/) {
+        unless ($options{'cursoropacity'} >= 0.0 && $options{'cursoropacity'} <=1.0) {
+            $options{'cursoropacity'}='1.0';
+        }
+    } else {
+        $options{'cursoropacity'}='1.0';
+    }
+    if ($options{'cursorfixedheight'} eq 'none') {
+        delete($options{'cursorfixedheight'});
+    } else {
+        unless ($options{'cursorfixedheight'} =~ /^\d+$/) { $options{'cursorfixedheight'}='50'; }
+    }
+    unless ($options{'railoffset'} =~ /^{[\w\:\d\-,]+}$/) {
+        delete($options{'railoffset'});
+    }
+    my @niceoptions;
+    while (my($key,$value) = each(%options)) {
+        if ($value =~ /^\{.+\}$/) {
+            push(@niceoptions,$key.':'.$value);
+        } else {
+            push(@niceoptions,$key.':"'.$value.'"');
+        }
+    }
+    my $nicescroll_js = '
+$(document).ready(
+      function() {
+          $("#'.$id.'").niceScroll({'.join(',',@niceoptions).'});
+      }
+);
+';
+    if ($framecheck) {
+        $nicescroll_js .= '
+function expand_div(caller) {
+    if (top === self) {
+        document.getElementById("'.$id.'").style.width = "auto";
+        document.getElementById("'.$id.'").style.height = "auto";
+    } else {
+        try {
+            if (parent.frames) {
+                if (parent.frames.length > 1) {
+                    var framesrc = parent.frames[1].location.href;
+                    var currsrc = framesrc.replace(/\#.*$/,"");
+                    if ((caller == "search") || (currsrc == "'.$location.'")) {
+                        document.getElementById("'.$id.'").style.width = "auto";
+                        document.getElementById("'.$id.'").style.height = "auto";
+                    }
+                }
+            }
+        } catch (e) {
+            return;
+        }
+    }
+    return;
+}
+';
+    }
+    if ($needjsready) {
+        $nicescroll_js = '
+<script type="text/javascript">'."\n".$nicescroll_js."\n</script>\n";
+    } else {
+        $nicescroll_js = &Apache::lonhtmlcommon::scripttag($nicescroll_js);
+    }
+    return $nicescroll_js;
+}
+
 sub simple_error_page {
     my ($r,$title,$msg) = @_;
     my $page =
@@ -8561,11 +8670,16 @@ sub get_user_info {
 
 =item * &get_user_quota()
 
-Retrieves quota assigned for storage of portfolio files for a user  
+Retrieves quota assigned for storage of user files.
+Default is to report quota for portfolio files.
 
 Incoming parameters:
 1. user's username
 2. user's domain
+3. quota name - portfolio, author, or course
+   (if no quota name provided, defaults to portfolio).
+4. crstype - official, unofficial or community, if quota name is
+   course
 
 Returns:
 1. Disk quota (in Mb) assigned to student.
@@ -8579,7 +8693,7 @@ Returns:
 
 If a value has been stored in the user's environment, 
 it will return that, otherwise it returns the maximal default
-defined for the user's instituional status(es) in the domain.
+defined for the user's institutional status(es) in the domain.
 
 =cut
 
@@ -8587,7 +8701,7 @@ defined for the user's instituional stat
 
 
 sub get_user_quota {
-    my ($uname,$udom) = @_;
+    my ($uname,$udom,$quotaname,$crstype) = @_;
     my ($quota,$quotatype,$settingstatus,$defquota);
     if (!defined($udom)) {
         $udom = $env{'user.domain'};
@@ -8602,27 +8716,57 @@ sub get_user_quota {
         $defquota = 0; 
     } else {
         my $inststatus;
-        if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
-            $quota = $env{'environment.portfolioquota'};
-            $inststatus = $env{'environment.inststatus'};
-        } else {
-            my %userenv = 
-                &Apache::lonnet::get('environment',['portfolioquota',
-                                     'inststatus'],$udom,$uname);
-            my ($tmp) = keys(%userenv);
-            if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
-                $quota = $userenv{'portfolioquota'};
-                $inststatus = $userenv{'inststatus'};
-            } else {
-                undef(%userenv);
-            }
-        }
-        ($defquota,$settingstatus) = &default_quota($udom,$inststatus);
-        if ($quota eq '') {
-            $quota = $defquota;
-            $quotatype = 'default';
+        if ($quotaname eq 'course') {
+            if (($env{'course.'.$udom.'_'.$uname.'.num'} eq $uname) &&
+                ($env{'course.'.$udom.'_'.$uname.'.domain'} eq $udom)) {
+                $quota = $env{'course.'.$udom.'_'.$uname.'.internal.uploadquota'};
+            } else {
+                my %cenv = &Apache::lonnet::coursedescription("$udom/$uname");
+                $quota = $cenv{'internal.uploadquota'};
+            }
         } else {
-            $quotatype = 'custom';
+            if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
+                if ($quotaname eq 'author') {
+                    $quota = $env{'environment.authorquota'};
+                } else {
+                    $quota = $env{'environment.portfolioquota'};
+                }
+                $inststatus = $env{'environment.inststatus'};
+            } else {
+                my %userenv = 
+                    &Apache::lonnet::get('environment',['portfolioquota',
+                                         'authorquota','inststatus'],$udom,$uname);
+                my ($tmp) = keys(%userenv);
+                if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+                    if ($quotaname eq 'author') {
+                        $quota = $userenv{'authorquota'};
+                    } else {
+                        $quota = $userenv{'portfolioquota'};
+                    }
+                    $inststatus = $userenv{'inststatus'};
+                } else {
+                    undef(%userenv);
+                }
+            }
+        }
+        if ($quota eq '' || wantarray) {
+            if ($quotaname eq 'course') {
+                my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
+                if (($crstype eq 'official') || ($crstype eq 'unofficial') || ($crstype eq 'community')) { 
+                    $defquota = $domdefs{$crstype.'quota'};
+                }
+                if ($defquota eq '') {
+                    $defquota = 500;
+                }
+            } else {
+                ($defquota,$settingstatus) = &default_quota($udom,$inststatus,$quotaname);
+            }
+            if ($quota eq '') {
+                $quota = $defquota;
+                $quotatype = 'default';
+            } else {
+                $quotatype = 'custom';
+            }
         }
     }
     if (wantarray) {
@@ -8647,7 +8791,9 @@ Incoming parameters:
    status types (e.g., faculty, staff, student etc.)
    which apply to the user for whom the default is being retrieved.
    If the institutional status string in undefined, the domain
-   default quota will be returned. 
+   default quota will be returned.
+3.  quota name - portfolio, author, or course
+   (if no quota name provided, defaults to portfolio).
 
 Returns:
 1. Default disk quota (in Mb) for user portfolios in the domain.
@@ -8671,25 +8817,29 @@ default quota returned.
 
 
 sub default_quota {
-    my ($udom,$inststatus) = @_;
+    my ($udom,$inststatus,$quotaname) = @_;
     my ($defquota,$settingstatus);
     my %quotahash = &Apache::lonnet::get_dom('configuration',
                                             ['quotas'],$udom);
+    my $key = 'defaultquota';
+    if ($quotaname eq 'author') {
+        $key = 'authorquota';
+    }
     if (ref($quotahash{'quotas'}) eq 'HASH') {
         if ($inststatus ne '') {
             my @statuses = map { &unescape($_); } split(/:/,$inststatus);
             foreach my $item (@statuses) {
-                if (ref($quotahash{'quotas'}{'defaultquota'}) eq 'HASH') {
-                    if ($quotahash{'quotas'}{'defaultquota'}{$item} ne '') {
+                if (ref($quotahash{'quotas'}{$key}) eq 'HASH') {
+                    if ($quotahash{'quotas'}{$key}{$item} ne '') {
                         if ($defquota eq '') {
-                            $defquota = $quotahash{'quotas'}{'defaultquota'}{$item};
+                            $defquota = $quotahash{'quotas'}{$key}{$item};
                             $settingstatus = $item;
-                        } elsif ($quotahash{'quotas'}{'defaultquota'}{$item} > $defquota) {
-                            $defquota = $quotahash{'quotas'}{'defaultquota'}{$item};
+                        } elsif ($quotahash{'quotas'}{$key}{$item} > $defquota) {
+                            $defquota = $quotahash{'quotas'}{$key}{$item};
                             $settingstatus = $item;
                         }
                     }
-                } else {
+                } elsif ($key eq 'defaultquota') {
                     if ($quotahash{'quotas'}{$item} ne '') {
                         if ($defquota eq '') {
                             $defquota = $quotahash{'quotas'}{$item};
@@ -8703,16 +8853,25 @@ sub default_quota {
             }
         }
         if ($defquota eq '') {
-            if (ref($quotahash{'quotas'}{'defaultquota'}) eq 'HASH') {
-                $defquota = $quotahash{'quotas'}{'defaultquota'}{'default'};
-            } else {
+            if (ref($quotahash{'quotas'}{$key}) eq 'HASH') {
+                $defquota = $quotahash{'quotas'}{$key}{'default'};
+            } elsif ($key eq 'defaultquota') {
                 $defquota = $quotahash{'quotas'}{'default'};
             }
             $settingstatus = 'default';
+            if ($defquota eq '') {
+                if ($quotaname eq 'author') {
+                    $defquota = 500;
+                }
+            }
         }
     } else {
         $settingstatus = 'default';
-        $defquota = 20;
+        if ($quotaname eq 'author') {
+            $defquota = 500;
+        } else {
+            $defquota = 20;
+        }
     }
     if (wantarray) {
         return ($defquota,$settingstatus);
@@ -8721,6 +8880,61 @@ sub default_quota {
     }
 }
 
+###############################################
+
+=pod
+
+=item * &excess_filesize_warning()
+
+Returns warning message if upload of file to authoring space, or copying
+of existing file within authoring space will cause quota for the authoring
+space to be exceeded,
+
+Same, if upload of a file directly to a course/community via Course Editor
+will cause quota for uploaded content for the course to be exceeded.
+
+Inputs: 6
+1. username or coursenum
+2. domain
+3. context ('author' or 'course')
+4. filename of file for which action is being requested
+5. filesize (kB) of file
+6. action being taken: copy or upload.
+
+Returns: 1 scalar: HTML to display containing warning if quota would be exceeded,
+         otherwise return null. 
+
+=cut
+
+sub excess_filesize_warning {
+    my ($uname,$udom,$context,$filename,$filesize,$action) = @_;
+    my $current_disk_usage = 0;
+    my $disk_quota = &get_user_quota($uname,$udom,$context); #expressed in MB
+    if ($context eq 'author') {
+        my $authorspace = $Apache::lonnet::perlvar{'lonDocRoot'}."/priv/$udom/$uname";
+        $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$authorspace);
+    } else {
+        foreach my $subdir ('docs','supplemental') {
+            $current_disk_usage += &Apache::lonnet::diskusage($udom,$uname,"userfiles/$subdir",1);
+        }
+    }
+    $disk_quota = int($disk_quota * 1000);
+    if (($current_disk_usage + $filesize) > $disk_quota) {
+        return '<p><span class="LC_warning">'.
+                &mt("Unable to $action [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.",
+                    '<span class="LC_filename">'.$filename.'</span>',$filesize).'</span>'.
+               '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',
+                            $disk_quota,$current_disk_usage).
+               '</p>';
+    }
+    return;
+}
+
+###############################################
+
+
+
+
 sub get_secgrprole_info {
     my ($cdom,$cnum,$needroles,$type)  = @_;
     my %sections_count = &get_sections($cdom,$cnum);
@@ -14079,7 +14293,7 @@ sub init_user_environment {
 # ------------------------------------ Check browser type and MathML capability
 
     my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
-        $clientunicode,$clientos) = &decode_user_agent($r);
+        $clientunicode,$clientos,$clientmobile,$clientinfo) = &decode_user_agent($r);
 
 # ------------------------------------------------------------- Get environment
 
@@ -14110,6 +14324,8 @@ sub init_user_environment {
 	     "browser.mathml"     => $clientmathml,
 	     "browser.unicode"    => $clientunicode,
 	     "browser.os"         => $clientos,
+             "browser.mobile"     => $clientmobile,
+             "browser.info"       => $clientinfo,
 	     "server.domain"      => $Apache::lonnet::perlvar{'lonDefDomain'},
 	     "request.course.fn"  => '',
 	     "request.course.uri" => '',
@@ -14567,7 +14783,7 @@ sub create_recaptcha {
     return $captcha->get_options_setter({theme => 'white'})."\n".
            $captcha->get_html($pubkey).
            &mt('If either word is hard to read, [_1] will replace them.',
-               '<image src="/res/adm/pages/refresh.gif" alt="reCAPTCHA refresh" />').
+               '<img src="/res/adm/pages/refresh.gif" alt="reCAPTCHA refresh" />').
            '<br /><br />';
 }