From c8178feb852bac6c95eb3298c4f897c15c6adf50 Mon Sep 17 00:00:00 2001 From: janek Date: Fri, 15 Apr 2011 02:20:48 +0800 Subject: [PATCH] Added support for suggesting bookmark tag names. Signed-off-by: janek --- insipid.css | 33 +++++++++ lib/Insipid/Main.pm | 3 + lib/js/jquery.js | 16 +++++ lib/js/tagsSuggest.js | 161 ++++++++++++++++++++++++++++++++++++++++++ lib/tagsSuggest.pl | 47 ++++++++++++ 5 files changed, 260 insertions(+) create mode 100644 lib/js/jquery.js create mode 100644 lib/js/tagsSuggest.js create mode 100755 lib/tagsSuggest.pl diff --git a/insipid.css b/insipid.css index a6c988f..f577643 100755 --- a/insipid.css +++ b/insipid.css @@ -176,3 +176,36 @@ A.bookmarkOp:link { color: #800000; } A.bookmarkOp:visited { color: #800000; } A.bookmarkOp:hover { color: #800000; } +#suggestlist { + display: none; + padding-bottom: 0.5em; + width: 500px; + height: 1em; +} + +#suggestlist ul { + border: 1px solid; + border-top-color: #EEE; + border-left-color: #EEE; + border-right-color: #AAA; + border-bottom-color: #AAA; + background: #EEE; + margin: 0; + padding: 0; + list-style: none; + width: 100%; + height: 100%; + overflow: hidden; +} + +#suggestlist li { + float: left; + padding: 0.2em 0.3em; + font-size: 12px; + color: black; +} + +#suggestlist li.sel { + background: black; + color: white; +} diff --git a/lib/Insipid/Main.pm b/lib/Insipid/Main.pm index 3e3be57..724ffda 100755 --- a/lib/Insipid/Main.pm +++ b/lib/Insipid/Main.pm @@ -203,6 +203,7 @@ sub main { + DOC @@ -353,6 +354,7 @@ IFORM if($redir eq 'on') { $redir_box = "checked=\"true\""; } print <
$utext
@@ -363,6 +365,7 @@ IFORM
Tags:

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    ";d.extend(b.style,{position:"absolute",top:0,left:0,margin:0,border:0,width:"1px",height:"1px",visibility:"hidden"}),b.innerHTML=j,a.insertBefore(b,a.firstChild),e=b.firstChild,f=e.firstChild,h=e.nextSibling.firstChild.firstChild,this.doesNotAddBorder=f.offsetTop!==5,this.doesAddBorderForTableAndCells=h.offsetTop===5,f.style.position="fixed",f.style.top="20px",this.supportsFixedPosition=f.offsetTop===20||f.offsetTop===15,f.style.position=f.style.top="",e.style.overflow="hidden",e.style.position="relative",this.subtractsBorderForOverflowNotVisible=f.offsetTop===-5,this.doesNotIncludeMarginInBodyOffset=a.offsetTop!==i,a.removeChild(b),d.offset.initialize=d.noop},bodyOffset:function(a){var b=a.offsetTop,c=a.offsetLeft;d.offset.initialize(),d.offset.doesNotIncludeMarginInBodyOffset&&(b+=parseFloat(d.css(a,"marginTop"))||0,c+=parseFloat(d.css(a,"marginLeft"))||0);return{top:b,left:c}},setOffset:function(a,b,c){var e=d.css(a,"position");e==="static"&&(a.style.position="relative");var f=d(a),g=f.offset(),h=d.css(a,"top"),i=d.css(a,"left"),j=(e==="absolute"||e==="fixed")&&d.inArray("auto",[h,i])>-1,k={},l={},m,n;j&&(l=f.position()),m=j?l.top:parseInt(h,10)||0,n=j?l.left:parseInt(i,10)||0,d.isFunction(b)&&(b=b.call(a,c,g)),b.top!=null&&(k.top=b.top-g.top+m),b.left!=null&&(k.left=b.left-g.left+n),"using"in b?b.using.call(a,k):f.css(k)}},d.fn.extend({position:function(){if(!this[0])return null;var a=this[0],b=this.offsetParent(),c=this.offset(),e=ch.test(b[0].nodeName)?{top:0,left:0}:b.offset();c.top-=parseFloat(d.css(a,"marginTop"))||0,c.left-=parseFloat(d.css(a,"marginLeft"))||0,e.top+=parseFloat(d.css(b[0],"borderTopWidth"))||0,e.left+=parseFloat(d.css(b[0],"borderLeftWidth"))||0;return{top:c.top-e.top,left:c.left-e.left}},offsetParent:function(){return this.map(function(){var a=this.offsetParent||c.body;while(a&&(!ch.test(a.nodeName)&&d.css(a,"position")==="static"))a=a.offsetParent;return a})}}),d.each(["Left","Top"],function(a,c){var e="scroll"+c;d.fn[e]=function(c){var f=this[0],g;if(!f)return null;if(c!==b)return this.each(function(){g=ci(this),g?g.scrollTo(a?d(g).scrollLeft():c,a?c:d(g).scrollTop()):this[e]=c});g=ci(f);return g?"pageXOffset"in g?g[a?"pageYOffset":"pageXOffset"]:d.support.boxModel&&g.document.documentElement[e]||g.document.body[e]:f[e]}}),d.each(["Height","Width"],function(a,c){var e=c.toLowerCase();d.fn["inner"+c]=function(){return this[0]?parseFloat(d.css(this[0],e,"padding")):null},d.fn["outer"+c]=function(a){return this[0]?parseFloat(d.css(this[0],e,a?"margin":"border")):null},d.fn[e]=function(a){var f=this[0];if(!f)return a==null?null:this;if(d.isFunction(a))return this.each(function(b){var c=d(this);c[e](a.call(this,b,c[e]()))});if(d.isWindow(f)){var g=f.document.documentElement["client"+c];return f.document.compatMode==="CSS1Compat"&&g||f.document.body["client"+c]||g}if(f.nodeType===9)return Math.max(f.documentElement["client"+c],f.body["scroll"+c],f.documentElement["scroll"+c],f.body["offset"+c],f.documentElement["offset"+c]);if(a===b){var h=d.css(f,e),i=parseFloat(h);return d.isNaN(i)?h:i}return this.css(e,typeof a==="string"?a:a+"px")}}),a.jQuery=a.$=d})(window); \ No newline at end of file diff --git a/lib/js/tagsSuggest.js b/lib/js/tagsSuggest.js new file mode 100644 index 0000000..e8f12ef --- /dev/null +++ b/lib/js/tagsSuggest.js @@ -0,0 +1,161 @@ + +// detect tag insertion and provide suggestions +$(document).ready(function() +{ + var f = $('form input[name=tags]'); + var ls = $('#suggestlist'); + + var stopSuggesting = false; + //var isFocussed = true; + //var defaultTab = false; // set true to allow tabbing to the next element + + f.keyup(function(e) + { + var ulist = f.val().split(' '); + + var k = e.keyCode || e.which; + switch (k) + { + // tab to navigate suggestions + // The first suggestion is already selected. Tabbing + // selects the next suggestion, until the end of the + // list is reached, from which the selection loops to + // the start of the list. + case 9: + // implemented at document level + break; + + // esc halts suggestions for this tag + case 27: + hide(ls); + stopSuggesting = true; + break; + + // Spacebar to make a selection or add a new tag. + // If there is a selection, pressing spacebar will add + // the selection to the field. Keep typing the preferred + // tag name if none of the suggestions are valid. The + // suggestions list will disappear - pressing spacebar + // at this point allows for adding the next tag. + case 32: + if (ls.css('display') != 'none' && ls.find('li.sel').index() >= 0) { + ulist.pop(); ulist.pop(); + + var v = ulist.join(' '); + if (ulist.length) { + v += ' '; + } + f.val(v + ls.find('li.sel').text() + ' '); + hide(ls); + //defaultTab = true; + } + else { + hide(ls); + stopSuggesting = false; + } + break; + + // left arrow makes previous selection + case 37: + next(ls, 'backward'); + break; + + // right arrow makes next selection + case 39: + next(ls, 'forward'); + break; + + // initiate suggestions + default: + var w = ulist.pop(); + + if (w.length > 1 && stopSuggesting == false) { + $.ajax({ + url: 'lib/tagsSuggest.pl?' + w, + dataType: 'html', + success: function(o) { + if (o.length > 0) { + ls.slideDown('fast'); + ls.find('ul').html(o); + } + else { + hide(ls); + } + } + }); + //defaultTab = false; + } + else { + hide(ls); + } + break; + } //switch + }); +}).keydown(function(e) +{ + var k = e.keyCode || e.which; + var ls = $('#suggestlist'); + var defaultTab = ls.css('display') == 'none'; + var isFocussed = e.target.tagName.toLowerCase() == 'input' && e.target.name == 'tags'; + + if (k == 9 && isFocussed && !defaultTab) { + e.preventDefault(); + next(ls); + } +}); + +// Allows for directional navigation of suggestion list. +// With forward direction, tabbing selects the right-next +// suggestion. When the end of the list is reached, the +// selection jumps to the start of the list. +// +// @param ls:obj - the suggest list +// @param dir:string - "forward" | "backward" +function next(ls, dir) +{ + var n; + var i = ls.find('li.sel').index(); + var c = ls.find('li.sel'); + c.removeClass('sel'); + + switch (dir) + { + case 'backward': + i--; + n = c.prev('li'); + break; + + case 'forward': + default: + if (i < 0) { + i = 0; + } + else { + i++; + } + n = c.next('li'); + break; + } + + // jump to the start + if (i >= ls.find('li').size() || i == 0) { + ls.find('li:first-child').addClass('sel'); + } + // jump to the end + else if (i < 0) { + ls.find('li:last-child').addClass('sel'); + } + // select the next suggestion + else { + n.addClass('sel'); + } +} + +// Hides the suggest list. +// @param ls:obj - the suggest list +function hide(ls) +{ + ls.find('ul').empty(); + ls.hide(); +} + diff --git a/lib/tagsSuggest.pl b/lib/tagsSuggest.pl new file mode 100755 index 0000000..f20eec4 --- /dev/null +++ b/lib/tagsSuggest.pl @@ -0,0 +1,47 @@ +#!/usr/bin/perl + +use strict; +use warnings; + +use CGI; +use Insipid::Config; +use Insipid::Database; +use Insipid::Sessions; + +my $cgi = new CGI(); +print $cgi->header(-type => "text/html", -charset => "utf-8"); + +# Retrieve all related tags as the user adds a tag. This is to reduce +# the mental guess-work for the type of user who loathes creating +# redundant tags. Invoke this subroutine via js in a text input event. +# +# @param $in:string - First letters of the tag to match. +# @return $out:string - HTML-formatted list of tags. +my ($in) = shift; + +if ($in =~ /^[0-9a-z:_]+/i) +{ + my ($sql, $sth); + + # The user has typed in the first two letters, look for a match. + # Order suggestions by popularity. + $sql = "select $tbl_tags.name,count(*) from $tbl_tags + inner join $tbl_bookmark_tags on + ($tbl_tags.id = $tbl_bookmark_tags.tag_id) + where ($tbl_tags.name LIKE '$in%') + group by $tbl_tags.name + order by count( * ) desc"; + $sth = $dbh->prepare($sql); + $sth->execute(); + + # external wrappers div.suggestlist>ul> ... /ul/div + if($sth->rows ne 0) + { + my $out = ""; + #$out .= "Content-Type: text/html; charset=UTF-8\n\n"; + while(my @r = $sth->fetchrow_array()) { + $out .= "
  • $r[0]
    • "; + } + print $out; + } +} -- 2.39.5