js/photo-tags.js

   1 var pics = d3.select(".pics").select("ul");
   2 var page;
   3 var maxpage;
   4
   5 function init()
   6 {
   7   /* populate data list with tags*/
   8   d3.json(webbase+"/getjson.php?S", function(json) {
   9       d3.select("#MyTags").selectAll("option").data(json)
  10         .enter().append("option").attr("value",function(d) {return d.name});
  11     });
  12
  13   /* update form to point to new link */
  14   d3.select("input").on("keyup", function(d) {
  15       d3.select('form').attr("action",webbase+"/tag/"+document.getElementById('MyTagsInput').value.replace(" ","+"));
  16   });
  17
  18   d3.select("#currenttags").select("a").remove();
  19   if (T!="")
  20     {
  21       var mycurrenttags = T.split(",");
  22
  23       d3.select("#currenttags").selectAll("a")
  24         .data(mycurrenttags).enter()
  25         .append("a").attr("class","btn btn-small").text( function(d) {return d;} )
  26         .on("mouseover", function(d){ d3.select(this).classed("btn-danger",true)})
  27         .on("mouseout", function(d){ d3.select(this).classed("btn-danger",false)})
  28         .attr("href", function(d) { return removeTag(T.split(","),d) });
  29     };
  30 }
  31
  32 function removeTag(alltags,removetag)
  33 {
  34     /* return a link to a page with 'removetag' removed from the array of tags*/
  35     var index = alltags.indexOf(removetag);
  36     alltags.splice(index, 1);
  37     if (alltags.length)
  38         return webbase+'/tag/'+alltags.join(",");
  39     else
  40         return webbase;
  41 }
  42
  43
  44 function load_content() {
  45   // d3.select(".debug").text("T,P,N = *"+T+"* *"+page+"* *"+N+"*");
  46
  47   if (ID>=0)
  48     url = webbase+"/getjson.php?ID="+ID;
  49   else if(T!="")
  50     url = webbase+"/getjson.php?T="+T+"&P="+page;
  51   else
  52     url = webbase+"/getjson.php?P="+page;
  53
  54   /* update pics */
  55   d3.json(url, function(json) {
  56       count=0;
  57       pics.selectAll("li").remove();
  58       picdata=json;
  59
  60       /* if ID is set, just show one pictures, else create an array of pictures */
  61       if (ID>=0)
  62         {
  63             var singlepicspace=pics.selectAll("li").data(picdata, function(d){return ID;}).
  64                 enter().append("li").append("div").attr("class","singlepic");
  65             singlepicspace.append("img").attr("class","left").attr("src",webbase+"/icons/left.png");
  66             singlepicspace.append("img")
  67                 .attr("class","large")
  68                 .attr("src",function(d) {
  69                     s = d.base_uri+'/'+d.filename;
  70                     s = s.replace('file:\/\/'+dbprefix,webbase+'/Photos-small/');
  71                     return s;
  72                 });
  73             singlepicspace.append("img").attr("class","right").attr("src",webbase+"/icons/right.png");
  74             /* show description and time of photo */
  75             singlepicspace.append("p")
  76                 .text(function(d) {
  77                     var date = new Date(d.time*1000);
  78                     if (d.description=="")
  79                         return "Time: "+date.toUTCString();
  80                     else
  81                         return "Description: "+d.description + "Time: "+date.toUTCString();
  82                 });
  83             /* show tags */
  84             tags="";
  85             d3.json(webbase+"/getjson.php?IDT="+ID, function(jsontag) {
  86                 singlepicspace.append("p").selectAll("span").data(jsontag)
  87                     .enter().append("span")
  88                     .attr("class","btn btn-small")
  89                     .text( function(t) {
  90                         return t.name;
  91                     })
  92                     .on("mouseover", function(d){ d3.select(this).classed("btn-success",true)})
  93                     .on("mouseout", function(d){ d3.select(this).classed("btn-success",false)})
  94                     .on("click", function(d) { document.location.href=webbase+'/tag/'+d.name});
  95             });
  96
  97             update_thumbnails();
  98         }
  99       else
 100         {
 101           d3.select(".nextprev").select("ul").selectAll("li").remove();
 102           pics.selectAll("li").data(picdata)
 103             .enter().append("li")
 104             .append("a")
 105             .on("click", function(d) { load_pic(d.id); })
 106             .append("img")
 107             .attr("src",function(d) {
 108                 count++;
 109                 s= d.base_uri+'/'+d.filename;
 110                 s = s.replace('file:\/\/'+dbprefix,webbase+'/Photos-tiny/');
 111                 return s;
 112               });
 113         };
 114       checkbutton();
 115       update_permalink()
 116     });
 117 }
 118
 119 function update_permalink() {
 120   /* update permalink */
 121
 122   permalink = webbase;
 123
 124   if(T!="")
 125     permalink += '/tag/' + T;
 126   if(page!=1)
 127     permalink += '/page/' + page;
 128   if(ID>0)
 129     permalink += '/pic/' + ID;
 130
 131   d3.select(".permalink").html("Permalink: <a href=\""+permalink+"\">"+permalink+"</a>");
 132 }
 133
 134 function prev_page() {
 135     if (page>1) page=page-1;
 136     load_content();
 137     update_page_index();
 138 }
 139
 140 function next_page() {
 141     if (page<maxpage) page=page+1;
 142     load_content();
 143     update_page_index();
 144 }
 145
 146 function prev_pic() {
 147 }
 148
 149 function next_pic() {
 150 }
 151
 152 function load_pic(myid) {
 153   ID=myid;
 154   update_page_index();
 155   update_thumbnails();
 156   load_content();
 157 }
 158
 159 function tagcloud() {
 160
 161   url = webbase+"/getjson.php?CLOUD=1";
 162
 163   pics.selectAll("li").remove();
 164
 165   var svgelement=pics.append("li")
 166     .append("svg").attr("width",400).attr("height",400);
 167
 168   /* update pics */
 169   d3.json(url, function(json) {
 170       svgelement.selectAll("text").data(json).enter().append("text")
 171         .style("font-size", function(d){return (Math.log(d.count+1)/3.0+0.5)+"em"})
 172         .text(function(d) { return d.name+" "; })
 173         .on("mouseover", function(d){ d3.select(this).style("color","red")  })
 174         .on("mouseout",  function(d){ d3.select(this).style("color","black")})
 175         .on("click", function(d) { document.location.href=webbase+'/tag/'+d.name});
 176     });
 177 }
 178
 179 function update_thumbnails(){
 180   if(T!="")
 181     url2 = webbase+"/getjson.php?NP=1&T="+T+"&ID="+ID;
 182   else
 183     url2 = webbase+"/getjson.php?NP=1&ID="+ID;
 184
 185   var IDprev=-1;
 186   var IDnext=-1;
 187   var IDcurr=-1;
 188   d3.json(url2, function(json2) {
 189       /* figure out where the arrows on the pic should link to */
 190       all=""
 191       for (var i in json2){
 192         if( IDcurr != ID )
 193           {
 194             IDprev = IDcurr;
 195             IDcurr = IDnext;
 196             IDnext = json2[i].id;
 197           };
 198       }
 199
 200       var thumbs= d3.select(".nextprev").select("ul").selectAll("li").data(json2, function(d) {return d.id;});
 201
 202       thumbs.exit().select("img").transition().duration(1000).style("height","0px").transition().duration(1050).remove();
 203       thumbs.exit().transition().duration(1050).remove();
 204       thumbs.enter().append("li")
 205         .append("a")
 206         .on("click", function(d) {
 207             load_pic(d.id); }
 208           )
 209         .append("img")
 210         .attr("src",function(d) {
 211             s= d.base_uri+'/'+d.filename;
 212             s = s.replace('file:\/\/'+dbprefix,webbase+'/Photos-tiny/');
 213             return s;
 214           })
 215         .style("height","0px")
 216         .transition().duration(500)
 217         .style("height","100px");
 218
 219       /* resort elements */
 220       d3.select(".nextprev").select("ul").selectAll("li").sort(function(a,b){return a.id-b.id;});
 221       d3.select(".nextprev").select("ul").selectAll("li").select("a").select("img").classed("current",function(d){return (d.id==IDcurr);});
 222
 223
 224       /* add links for left/right arrows */
 225       if (IDprev != -1 )
 226         d3.select(".left").on("click", function() { load_pic(IDprev); });
 227       if (IDnext != -1 )
 228         d3.select(".right").on("click", function() { load_pic(IDnext); });
 229
 230     });
 231 }
 232
 233 function checkbutton()
 234 {
 235   if (page==1)
 236     { d3.select(".pagination ul li:first-child").classed("disabled", true);}
 237   else
 238     { d3.select(".pagination ul li:first-child").classed("disabled", false);};
 239
 240   if (page==maxpage)
 241     { d3.select(".pagination ul li:last-child").classed("disabled", true);}
 242   else
 243     { d3.select(".pagination ul li:last-child").classed("disabled", false);};
 244 }
 245
 246 function update_page_index()
 247 {
 248   /* load number of pictures */
 249   myID = "";
 250   if(ID > 0)
 251     myID = "&ID="+ID;
 252
 253   if(T!="")
 254     url = webbase+"/getjson.php?C=1&T="+T+myID;
 255   else
 256     url = webbase+"/getjson.php?C=1"+myID;
 257
 258   d3.json(url, function(json) {
 259       /* update index, show only page +-5 pages max */
 260       n  = Math.floor( json[0].total/N   ); /* how many pages */
 261       nr = Math.floor( (json[0].row-1)/N ); /* which row are we in? rowid starts at 1 not 0 */
 262
 263       maxpage=n+1;
 264
 265       if(nr > 0) page = nr+1;
 266
 267       var mydata = new Array();  // add json data  {page: <nr>, name: <name>} ; at end reform array into real json and use d3 to parse it
 268
 269       if(n>0)
 270       {
 271           mydata.push('{ page:0.1, name:"Prev"}');
 272           if(page>4)
 273           {
 274               mydata.push('{ page:1, name:"1"}');
 275               mydata.push('{ page:1.5, name:"..."}');
 276               start = page-3;
 277           }
 278           else
 279               start=1;
 280
 281           for(i=start;i<=Math.min(n+1,page+3);i++)
 282               mydata.push('{ page:'+i+', name:"'+i+'"}');
 283
 284           if(page+3<n)
 285           {
 286               mydata.push('{ page:'+(n+0.5)+', name:"..."}');
 287               mydata.push('{ page:'+(n+1)+', name:"'+(n+1)+'"}');
 288           }
 289           else if(page+3==n)
 290               mydata.push('{ page:'+(n+1)+', name:"'+(n+1)+'"}');
 291
 292           mydata.push('{ page:'+(n+2.1)+', name:"Next"}');
 293       }
 294       else
 295       {
 296           mydata.push('{ page:0.1, name:"Prev"}');
 297           mydata.push('{ page:1.1, name:"Next"}');
 298       }
 299
 300       mydata = "["+mydata.join(",")+"]";
 301       mydata =  eval('(' + mydata + ')');
 302
 303       /* remove old elements */
 304       d3.selectAll(".pagination").select("ul").selectAll("li").remove();
 305
 306       /* create new ones */
 307       var pageindex = d3.selectAll(".pagination").select("ul").selectAll("li").data(mydata, function(d){return d.page});
 308       pageindex.selectAll("li").data(mydata, function(d){ return d.page; });
 309       pageindex.enter().append("li").append("a")
 310           .on("click", function(d) { if(  (d.page - Math.floor(d.page)) ==0 )  {page=d.page; ID=-1;load_content(); update_page_index();} })
 311           .text(function(d) {return " "+d.name+" "});
 312
 313       pageindex.sort( function(a,b) { return a.page- b.page;} );
 314
 315       /* add callbacks to prev and next buttons */
 316       d3.selectAll(".pagination ul li:first-child a").on("click", function(){prev_page();});
 317       d3.selectAll(".pagination ul li:last-child  a").on("click", function(){next_page();});
 318
 319       d3.select(".pagination").select("ul").selectAll("li").classed("active", false);
 320       d3.select(".pagination").select("ul").selectAll("li").classed("active", function(d) {return ( d.page == page ); });
 321       checkbutton();
 322     } );
 323
 324 }