root/js/componentload.js

   1 // Global state variables
   2 var selectedTextID;
   3 var selectedTextInfo;
   4 var selectedTextEditable;
   5 var selectedStemmaID = -1;
   6 var stemmata = [];
   7
   8 // Load the names of the appropriate traditions into the directory div.
   9 function refreshDirectory () {
  10         var lmesg = $('#loading_message').clone();
  11         $('#directory').empty().append( lmesg.contents() );
  12     $('#directory').load( _get_url(["directory"]),
  13         function(response, status, xhr) {
  14                         if (status == "error") {
  15                                 var msg = "An error occurred: ";
  16                                 $("#directory").html(msg + xhr.status + " " + xhr.statusText);
  17                         } else {
  18                                 if( textOnLoad != "" ) {
  19                                         // Call the click callback for the relevant text, if it is
  20                                         // in the page.
  21                                         $('#'+textOnLoad).click();
  22                                         textOnLoad = "";
  23                                 }
  24                         }
  25                 }
  26         );
  27 }
  28
  29 // Load a tradition with its information and stemmata into the tradition
  30 // view pane. Calls load_textinfo.
  31 function loadTradition( textid, textname, editable ) {
  32         selectedTextID = textid;
  33         selectedTextEditable = editable;
  34     // First insert the placeholder image and register an error handler
  35     $('#textinfo_load_status').empty();
  36     $('#stemma_graph').empty();
  37     $('#textinfo_waitbox').show();
  38     $('#textinfo_container').hide().ajaxError(
  39         function(event, jqXHR, ajaxSettings, thrownError) {
  40         if( ajaxSettings.url.indexOf( 'textinfo' ) > -1 && ajaxSettings.type == 'GET'  ) {
  41                         $('#textinfo_waitbox').hide();
  42                         $('#textinfo_container').show();
  43                         display_error( jqXHR, $("#textinfo_load_status") );
  44         }
  45     });
  46
  47     // Hide the functionality that is irrelevant
  48     if( editable ) {
  49         $('#open_stemma_add').show();
  50         $('#open_textinfo_edit').show();
  51         $('#relatebutton_label').text('View collation and edit relationships');
  52     } else {
  53         $('#open_stemma_add').hide();
  54         $('#open_stemweb_ui').hide();
  55         $('#query_stemweb_ui').hide();
  56         $('#open_textinfo_edit').hide();
  57         $('#relatebutton_label').text('View collation and relationships');
  58     }
  59
  60     // Then get and load the actual content.
  61     // TODO: scale #stemma_graph both horizontally and vertically
  62     // TODO: load svgs from SVG.Jquery (to make scaling react in Safari)
  63     $.getJSON( _get_url([ "textinfo", textid ]), function (textdata) {
  64         // Add the scalar data
  65         selectedTextInfo = textdata;
  66         load_textinfo();
  67         // Add the stemma(ta)
  68         stemmata = textdata.stemmata;
  69         if( stemmata.length ) {
  70                 selectedStemmaID = 0;
  71         } else {
  72                 selectedStemmaID = -1;
  73                 }
  74                 load_stemma( selectedStemmaID );
  75         // Set up the relationship mapper button
  76                 $('#run_relater').attr( 'action', _get_url([ "relation", textid ]) );
  77                 // Set up the download button
  78                 $('#dl_tradition').attr( 'href', _get_url([ "download", textid ]) );
  79                 $('#dl_tradition').attr( 'download', selectedTextInfo.name + '.xml' );
  80         });
  81 }
  82
  83 // Load the metadata about a tradition into the appropriate div.
  84 function load_textinfo() {
  85         $('#textinfo_waitbox').hide();
  86         $('#textinfo_load_status').empty();
  87         $('#textinfo_container').show();
  88         // The tradition name should appear here and should be identical in the
  89         // corresponding directory span. In case the name was just changed...
  90         $('.texttitle').empty().append( selectedTextInfo.name );
  91         $('#' + selectedTextID).empty().append( selectedTextInfo.name );
  92         // Witnesses
  93         $('#witness_num').empty().append( selectedTextInfo.witnesses.size );
  94         $('#witness_list').empty().append( selectedTextInfo.witnesses.join( ', ' ) );
  95         // Who the owner is
  96         $('#owner_id').empty().append('no one');
  97         if( selectedTextInfo.owner ) {
  98                 var owneremail = selectedTextInfo.owner;
  99                 var chop = owneremail.indexOf( '@' );
 100                 if( chop > -1 ) {
 101                         owneremail = owneremail.substr( 0, chop + 1 ) + '...';
 102                 }
 103                 $('#owner_id').empty().append( owneremail );
 104         }
 105         // Whether or not it is public
 106         $('#not_public').empty();
 107         if( selectedTextInfo['public'] == false ) {
 108                 $('#not_public').append('NOT ');
 109         }
 110         // What language setting it has, if any
 111         $('#marked_language').empty().append('no language set');
 112         if( selectedTextInfo.language && selectedTextInfo.language != 'Default' ) {
 113                 $('#marked_language').empty().append( selectedTextInfo.language );
 114         }
 115 }
 116
 117 // Enable / disable the appropriate buttons for paging through the stemma.
 118 function show_stemmapager () {
 119       $('.pager_left_button').unbind('click').addClass( 'greyed_out' );
 120       $('.pager_right_button').unbind('click').addClass( 'greyed_out' );
 121       if( selectedStemmaID > 0 ) {
 122               $('.pager_left_button').click( function () {
 123                       load_stemma( selectedStemmaID - 1, selectedTextEditable );
 124               }).removeClass( 'greyed_out' );
 125       }
 126       if( selectedStemmaID + 1 < stemmata.length ) {
 127               $('.pager_right_button').click( function () {
 128                       load_stemma( selectedStemmaID + 1, selectedTextEditable );
 129               }).removeClass( 'greyed_out' );
 130       }
 131 }
 132
 133 // Load a given stemma SVG into the stemmagraph box.
 134 function load_stemma( idx ) {
 135         // Load the stemma at idx
 136         selectedStemmaID = idx;
 137         show_stemmapager( selectedTextEditable );
 138         $('#open_stemma_edit').hide();
 139         $('#run_stexaminer').hide();
 140         $('#stemma_identifier').empty();
 141         // Add the relevant Stemweb functionality
 142         if( selectedTextEditable ) {
 143                 switch_stemweb_ui();
 144         }
 145         if( idx > -1 ) {
 146                 // Load the stemma and its properties
 147                 var stemmadata = stemmata[idx];
 148                 if( selectedTextEditable ) {
 149                         $('#open_stemma_edit').show();
 150                 }
 151                 if( stemmadata.directed ) {
 152                         // Stexaminer submit action
 153                         var stexpath = _get_url([ "stexaminer", selectedTextID, idx ]);
 154                         $('#run_stexaminer').attr( 'action', stexpath );
 155                         $('#run_stexaminer').show();
 156                 }
 157                 loadSVG( stemmadata.svg );
 158                 $('#stemma_identifier').text( stemmadata.name );
 159         setTimeout( 'start_element_height = $("#stemma_graph .node")[0].getBBox().height;', 500 );
 160         }
 161 }
 162
 163 function switch_stemweb_ui() {
 164         if( selectedTextInfo.stemweb_jobid == 0 ) {
 165                 // We want to run Stemweb.
 166                 $('#open_stemweb_ui').show();
 167                 $('#query_stemweb_ui').hide();
 168                 if( ! $('#stemweb-ui-dialog').dialog('isOpen') ) {
 169                         $('#call_stemweb').show()
 170                         $('#stemweb_run_button').show();
 171                 }
 172         } else {
 173                 $('#query_stemweb_ui').show();
 174                 $('#open_stemweb_ui').hide();
 175                 $('#call_stemweb').hide();
 176                 $('#stemweb_run_button').hide();
 177         }
 178 }
 179
 180 function query_stemweb_progress() {
 181         var requrl = _get_url([ "stemweb", "query", selectedTextInfo.stemweb_jobid ]);
 182         $('#stemweb-ui-dialog').dialog('open');
 183         $('#stemweb_run_status').empty().append(
 184                                 _make_message( 'notification', 'Querying Stemweb for calculation progress...') );
 185         $.getJSON( requrl, function (data) {
 186                 process_stemweb_result( data );
 187         });
 188         // TODO need an error handler
 189 }
 190
 191 function process_stemweb_result(data) {
 192         // Look for a status message, either success, running, or notfound.
 193         if( data.status === 'success' ) {
 194                 // Add the new stemmata to the textinfo and tell the user.
 195                 selectedTextInfo.stemweb_jobid = 0;
 196                 if( data.stemmata.length > 0 ) {
 197                         stemmata = stemmata.concat( data.stemmata );
 198                         if( selectedStemmaID == -1 ) {
 199                                 // We have a stemma for the first time; load the first one.
 200                                 load_stemma( 0, true );
 201                         } else {
 202                                 // Move to the index of the first added stemma.
 203                                 var newIdx = stemmata.length - data.stemmata.length;
 204                                 load_stemma( newIdx, true );
 205                         }
 206                         $('#stemweb_run_status').empty().append(
 207                                 _make_message( 'notification', 'You have one or more new stemmata!' ) );
 208                 } else {
 209                         $('#stemweb_run_status').empty().append(
 210                                 _make_message( 'warning', 'Stemweb run finished with no stemmata...huh?!' ) );
 211                 }
 212         } else if( data.status === 'running' ) {
 213                 // Just tell the user.
 214                 $('#stemweb_run_status').empty().append(
 215                                 _make_message( 'notification', 'Your Stemweb query is still running!' ) );
 216         } else if( data.status === 'notfound' ) {
 217                 // Ask the user to refresh, for now.
 218                 $('#stemweb_run_status').empty().append(
 219                                 _make_message( 'warning', 'Your Stemweb query probably finished and reported back. Please reload to check.' ) );
 220         } else if( data.status === 'failed' ) {
 221                 selectedTextInfo.stemweb_jobid = 0;
 222                 failureMsg = 'Your stemweb query failed';
 223                 if( data.message ) {
 224                         failureMsg = failureMsg + ' with the following message: ' + data.message
 225                 } else {
 226                         failureMsg = failureMsg + ' without telling us why.'
 227                 }
 228                 $('#stemweb_run_status').empty().append(
 229                                 _make_message( 'error', failureMsg ) );
 230         }
 231 }
 232
 233 function _make_message( type, msg ) {
 234         theMessage = $('<span>').attr( 'class', type );
 235         theMessage.append( msg );
 236         return theMessage;
 237 }
 238
 239 // Load the SVG we are given
 240 function loadSVG(svgData) {
 241         var svgElement = $('#stemma_graph');
 242
 243         $(svgElement).svg('destroy');
 244
 245         $(svgElement).svg({
 246                 loadURL: svgData,
 247                 onLoad : function () {
 248                         var theSVG = svgElement.find('svg');
 249                         var svgoffset = theSVG.offset();
 250                         var browseroffset = 1;
 251                         // Firefox needs a different offset, stupidly enough
 252                         if( navigator.userAgent.indexOf('Firefox') > -1 ) {
 253                                 browseroffset = 3; // works for tall images
 254                                 // ...but if the SVG is wider than it is tall, Firefox treats
 255                                 // the top as being the top of the graph, loaded into the middle
 256                                 // of the canvas, but then the margin at the top of the canvas
 257                                 // extends upward. So we have to find the actual top of the canvas
 258                                 // and correct for *that* instead.
 259                                 var vbdim = svgElement.svg().svg('get').root().viewBox.baseVal;
 260                                 if( vbdim.height < vbdim.width ) {
 261                                         var vbscale = svgElement.width() / vbdim.width;
 262                                         var vbrealheight = vbdim.height * vbscale;
 263                                         browseroffset = 3 + ( svgElement.height() - vbrealheight ) / 2;
 264                                 }
 265                         }
 266                         var topoffset = theSVG.position().top - svgElement.position().top - browseroffset;
 267                         theSVG.offset({ top: svgoffset.top - topoffset, left: svgoffset.left });
 268                         set_stemma_interactive( theSVG );
 269                 }
 270         });
 271 }
 272
 273 function set_stemma_interactive( svg_element ) {
 274         if( selectedTextEditable ) {
 275                 $( "#root_tree_dialog_button_ok" ).click( function() {
 276                         var requrl = _get_url([ "stemmaroot", selectedTextID, selectedStemmaID ]);
 277                         var targetnode = $('#root_tree_dialog').data( 'selectedNode' );
 278                         $.post( requrl, { root: targetnode }, function (data) {
 279                                 // Reload the new stemma
 280                                 stemmata[selectedStemmaID] = data;
 281                                 load_stemma( selectedStemmaID );
 282                                 // Put away the dialog
 283                                 $('#root_tree_dialog').data( 'selectedNode', null ).hide();
 284                         } );
 285                 } ).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
 286                         if( ajaxSettings.url.indexOf( 'stemmaroot' ) > -1
 287                                 && ajaxSettings.type == 'POST' ) {
 288                                 display_error( jqXHR, $("#stemma_load_status") );
 289                         }
 290                 } );
 291                 // TODO Clear error at some appropriate point
 292                 $.each( $( 'ellipse', svg_element ), function(index) {
 293                         var ellipse = $(this);
 294                         var g = ellipse.parent( 'g' );
 295                         g.click( function(evt) {
 296                                 if( typeof root_tree_dialog_timeout !== 'undefined' ) { clearTimeout( root_tree_dialog_timeout ) };
 297                                 g.unbind( 'mouseleave' );
 298                                 var dialog = $( '#root_tree_dialog' );
 299                                 // Note which node triggered the dialog
 300                                 dialog.data( 'selectedNode', g.attr('id') );
 301                                 // Position the dialog
 302                                 dialog.hide();
 303                                 dialog.css( 'top', evt.pageY + 3 );
 304                                 dialog.css( 'left', evt.pageX + 3 );
 305                                 dialog.show();
 306                                 root_tree_dialog_timeout = setTimeout( function() {
 307                                         $( '#root_tree_dialog' ).data( 'selectedNode', null ).hide();
 308                                         ellipse.removeClass( 'stemma_node_highlight' );
 309                                         g.mouseleave( function() { ellipse.removeClass( 'stemma_node_highlight' ) } );
 310                                 }, 3000 );
 311                         } );
 312                         g.mouseenter( function() {
 313                                 $( 'ellipse.stemma_node_highlight' ).removeClass( 'stemma_node_highlight' );
 314                                 ellipse.addClass( 'stemma_node_highlight' )
 315                         } );
 316                         g.mouseleave( function() { ellipse.removeClass( 'stemma_node_highlight' ) } );
 317                 } );
 318         }
 319 }
 320
 321 // General-purpose error-handling function.
 322 // TODO make sure this gets used throughout, where appropriate.
 323 function display_error( jqXHR, el ) {
 324         var errmsg;
 325         if( jqXHR.responseText == "" ) {
 326                 errmsg = "perhaps the server went down?"
 327         } else {
 328                 var errobj;
 329                 try {
 330                         errobj = jQuery.parseJSON( jqXHR.responseText );
 331                         errmsg = errobj.error;
 332                 } catch ( parse_err ) {
 333                         errmsg = "something went wrong on the server."
 334                 }
 335         }
 336         var msghtml = $('<span>').attr('class', 'error').text( "An error occurred: " + errmsg );
 337         $(el).empty().append( msghtml ).show();
 338 }
 339
 340 // Event to enable the upload button when a file has been selected
 341 function file_selected( e ) {
 342         if( e.files.length == 1 ) {
 343                 $('#upload_button').button('enable');
 344                 $('#new_file_name_container').html( '<span id="new_file_name">' + e.files[0].name + '</span>' );
 345         } else {
 346                 $('#upload_button').button('disable');
 347                 $('#new_file_name_container').html( '(Use \'pick file\' to select a tradition file to upload.)' );
 348         }
 349 }
 350
 351 // Implement our own AJAX method that uses the features of XMLHttpRequest2
 352 // but try to let it have a similar interface to jquery.post
 353 // The data var needs to be a FormData() object.
 354 // The callback will be given a single argument, which is the response data
 355 // of the given type.
 356
 357 function post_xhr2( url, data, cb, type ) {
 358         if( !type ) {
 359                 type = 'json';
 360         }
 361         var xhr = new XMLHttpRequest();
 362         // Set the expected response type
 363         if( type === 'data' ) {
 364                 xhr.responseType = 'blob';
 365         } else if( type === 'xml' ) {
 366                 xhr.responseType = 'document';
 367         }
 368         // Post the form
 369         // Gin up an AJAX settings object
 370         $.ajaxSetup({ url: url, type: 'POST' });
 371         xhr.open( 'POST', url, true );
 372         // Handle the results
 373         xhr.onload = function( e ) {
 374                 // Get the response and parse it
 375                 // Call the callback with the response, whatever it was
 376                 var xhrs = e.target;
 377                 if( xhrs.status > 199 && xhrs.status < 300  ) { // Success
 378                         var resp;
 379                         if( type === 'json' ) {
 380                                 resp = $.parseJSON( xhrs.responseText );
 381                         } else if ( type === 'xml' ) {
 382                                 resp = xhrs.responseXML;
 383                         } else if ( type === 'text' ) {
 384                                 resp = xhrs.responseText;
 385                         } else {
 386                                 resp = xhrs.response;
 387                         }
 388                         cb( resp );
 389                 } else {
 390                         // Trigger the ajaxError...
 391                         _trigger_ajaxerror( e );
 392                 }
 393         };
 394         xhr.onerror = _trigger_ajaxerror;
 395         xhr.onabort = _trigger_ajaxerror;
 396         xhr.send( data );
 397 }
 398
 399 function _trigger_ajaxerror( e ) {
 400         var xhr = e.target;
 401         var thrown = xhr.statusText || 'Request error';
 402         jQuery.event.trigger( 'ajaxError', [ xhr, $.ajaxSettings, thrown ]);
 403 }
 404
 405 function upload_new () {
 406         // Serialize the upload form, get the file and attach it to the request,
 407         // POST the lot and handle the response.
 408         var newfile = $('#new_file').get(0).files[0];
 409         var reader = new FileReader();
 410         reader.onload = function( evt ) {
 411                 var data = new FormData();
 412                 $.each( $('#new_tradition').serializeArray(), function( i, o ) {
 413                                 data.append( o.name, o.value );
 414                         });
 415                 data.append( 'file', newfile );
 416                 var upload_url = _get_url([ 'newtradition' ]);
 417                 post_xhr2( upload_url, data, function( ret ) {
 418                         if( ret.id ) {
 419                                 $('#upload-collation-dialog').dialog('close');
 420                                 refreshDirectory();
 421                                 loadTradition( ret.id, ret.name, 1 );
 422                         } else if( ret.error ) {
 423                                 $('#upload_status').empty().append(
 424                                         $('<span>').attr('class', 'error').append( ret.error ) );
 425                         }
 426                 }, 'json' );
 427         };
 428         reader.onerror = function( evt ) {
 429                 var err_resp = 'File read error';
 430                 if( e.name == 'NotFoundError' ) {
 431                         err_resp = 'File not found';
 432                 } else if ( e.name == 'NotReadableError' ) {
 433                         err_resp == 'File unreadable - is it yours?';
 434                 } else if ( e.name == 'EncodingError' ) {
 435                         err_resp == 'File cannot be encoded - is it too long?';
 436                 } else if ( e.name == 'SecurityError' ) {
 437                         err_resp == 'File read security error';
 438                 }
 439                 // Fake a jqXHR object that we can pass to our generic error handler.
 440                 var jqxhr = { responseText: '{error:"' + err_resp + '"}' };
 441                 display_error( jqxhr, $('#upload_status') );
 442                 $('#upload_button').button('disable');
 443         }
 444
 445         reader.readAsBinaryString( newfile );
 446 }
 447
 448 // Utility function to neatly construct an application URL
 449 function _get_url( els ) {
 450         return basepath + els.join('/');
 451 }
 452
 453 // TODO Attach unified ajaxError handler to document
 454 $(document).ready( function() {
 455         // See if we have the browser functionality we need
 456         // TODO Also think of a test for SVG readiness
 457         if( !!window.FileReader && !!window.File ) {
 458                 $('#compatibility_check').empty();
 459         }
 460
 461     // hide dialog not yet in use
 462     $('#root_tree_dialog').hide();
 463
 464     // call out to load the directory div
 465     $('#textinfo_container').hide();
 466     $('#textinfo_waitbox').hide();
 467         refreshDirectory();
 468
 469         // Set up the textinfo edit dialog
 470         $('#textinfo-edit-dialog').dialog({
 471                 autoOpen: false,
 472                 height: 200,
 473                 width: 300,
 474                 modal: true,
 475                 buttons: {
 476                         Save: function (evt) {
 477                                 $("#edit_textinfo_status").empty();
 478                                 var mybuttons = $(evt.target).closest('button').parent().find('button');
 479                                 mybuttons.button( 'disable' );
 480                                 var requrl = _get_url([ "textinfo", selectedTextID ]);
 481                                 var reqparam = $('#edit_textinfo').serialize();
 482                                 $.post( requrl, reqparam, function (data) {
 483                                         // Reload the selected text fields
 484                                         selectedTextInfo = data;
 485                                         load_textinfo();
 486                                         // Reenable the button and close the form
 487                                         mybuttons.button("enable");
 488                                         $('#textinfo-edit-dialog').dialog('close');
 489                                 }, 'json' );
 490                         },
 491                         Cancel: function() {
 492                                 $('#textinfo-edit-dialog').dialog('close');
 493                         }
 494                 },
 495                 open: function() {
 496                         $("#edit_textinfo_status").empty();
 497                         // Populate the form fields with the current values
 498                         // edit_(name, language, public, owner)
 499                         $.each([ 'name', 'language', 'owner' ], function( idx, k ) {
 500                                 var fname = '#edit_' + k;
 501                                 // Special case: language Default is basically language null
 502                                 if( k == 'language' && selectedTextInfo[k] == 'Default' ) {
 503                                         $(fname).val( "" );
 504                                 } else {
 505                                         $(fname).val( selectedTextInfo[k] );
 506                                 }
 507                         });
 508                         if( selectedTextInfo['public'] == true ) {
 509                                 $('#edit_public').attr('checked','true');
 510                         } else {
 511                                 $('#edit_public').removeAttr('checked');
 512                         }
 513                 },
 514         }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
 515                 $(event.target).parent().find('.ui-button').button("enable");
 516         if( ajaxSettings.url.indexOf( 'textinfo' ) > -1
 517                 && ajaxSettings.type == 'POST' ) {
 518                         display_error( jqXHR, $("#edit_textinfo_status") );
 519         }
 520         });
 521
 522
 523         // Set up the stemma editor dialog
 524         $('#stemma-edit-dialog').dialog({
 525                 autoOpen: false,
 526                 height: 700,
 527                 width: 600,
 528                 modal: true,
 529                 buttons: {
 530                         Save: function (evt) {
 531                                 $("#edit_stemma_status").empty();
 532                                 var mybuttons = $(evt.target).closest('button').parent().find('button');
 533                                 mybuttons.button( 'disable' );
 534                                 var stemmaseq = $('#stemmaseq').val();
 535                                 var requrl = _get_url([ "stemma", selectedTextID, stemmaseq ]);
 536                                 var reqparam = { 'dot': $('#dot_field').val() };
 537                                 // TODO We need to stash the literal SVG string in stemmata
 538                                 // somehow. Implement accept header on server side to decide
 539                                 // whether to send application/json or application/xml?
 540                                 $.post( requrl, reqparam, function (data) {
 541                                         // We received a stemma SVG string in return.
 542                                         // Update the current stemma sequence number
 543                                         selectedStemmaID = data.stemmaid;
 544                                         delete data.stemmaid;
 545                                         // Stash the answer in the appropriate spot in our stemma array
 546                                         stemmata[selectedStemmaID] = data;
 547                                         // Display the new stemma
 548                                         load_stemma( selectedStemmaID, true );
 549                                         // Reenable the button and close the form
 550                                         mybuttons.button("enable");
 551                                         $('#stemma-edit-dialog').dialog('close');
 552                                 }, 'json' );
 553                         },
 554                         Cancel: function() {
 555                                 $('#stemma-edit-dialog').dialog('close');
 556                         }
 557                 },
 558                 open: function(evt) {
 559                         $("#edit_stemma_status").empty();
 560                         var stemmaseq = $('#stemmaseq').val();
 561                         if( stemmaseq == 'n' ) {
 562                                 // If we are creating a new stemma, populate the textarea with a
 563                                 // bare digraph.
 564                                 $(evt.target).dialog('option', 'title', 'Add a new stemma')
 565                                 $('#dot_field').val( "digraph \"NAME STEMMA HERE\" {\n\n}" );
 566                         } else {
 567                                 // If we are editing a stemma, grab its stemmadot and populate the
 568                                 // textarea with that.
 569                                 $(evt.target).dialog('option', 'title', 'Edit selected stemma')
 570                                 $('#dot_field').val( 'Loading, please wait...' );
 571                                 var doturl = _get_url([ "stemmadot", selectedTextID, stemmaseq ]);
 572                                 $.getJSON( doturl, function (data) {
 573                                         // Re-insert the line breaks
 574                                         var dotstring = data.dot.replace(/\|n/gm, "\n");
 575                                         $('#dot_field').val( dotstring );
 576                                 });
 577                         }
 578                 },
 579         }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
 580                 $(event.target).parent().find('.ui-button').button("enable");
 581         if( ajaxSettings.url.indexOf( 'stemma' ) > -1
 582                 && ajaxSettings.type == 'POST' ) {
 583                         display_error( jqXHR, $("#edit_stemma_status") );
 584         }
 585         });
 586
 587         $('#stemweb-ui-dialog').dialog({
 588                 autoOpen: false,
 589                 height: 'auto',
 590                 width: 520,
 591                 modal: true,
 592                 buttons: {
 593                         Run: {
 594                                 id: 'stemweb_run_button',
 595                                 text: 'Run',
 596                                 click: function (evt) {
 597                                 $("#stemweb_run_status").empty();
 598                                 var mybuttons = $(evt.target).closest('button').parent().find('button');
 599                                 mybuttons.button( 'disable' );
 600                                 var requrl = _get_url([ "stemweb", "request" ]);
 601                                 var reqparam = $('#call_stemweb').serialize();
 602                                 // TODO We need to stash the literal SVG string in stemmata
 603                                 // somehow. Implement accept header on server side to decide
 604                                 // whether to send application/json or application/xml?
 605                                 $.getJSON( requrl, reqparam, function (data) {
 606                                         mybuttons.button("enable");
 607                                         $('#stemweb-ui-dialog').dialog('close');
 608                                         if( 'jobid' in data ) {
 609                                                 // There is a pending job.
 610                                                 selectedTextInfo.stemweb_jobid = data.jobid;
 611                                                 alert("Your request has been submitted to Stemweb.\nThe resulting tree will appear in due course.");
 612                                                 // Reload the current stemma to rejigger the buttons
 613                                                 load_stemma( selectedStemmaID, true );
 614                                         } else {
 615                                                 // We appear to have an answer; process it.
 616                                                 process_stemweb_result( data );
 617                                         }
 618                                 }, 'json' );
 619                                 },
 620                         },
 621                         Close: {
 622                                 id: 'stemweb_close_button',
 623                                 text: 'Close',
 624                                 click: function() {
 625                                         $('#stemweb-ui-dialog').dialog('close');
 626                                         switch_stemweb_ui();
 627                                 },
 628                         },
 629                 },
 630                 create: function(evt) {
 631                         // Call out to Stemweb to get the algorithm options, with which we
 632                         // populate the form.
 633                         var algorithmTypes = {};
 634                         var algorithmArgs = {};
 635                         var requrl = _get_url([ "stemweb", "available" ]);
 636                         $.getJSON( requrl, function( data ) {
 637                                 $.each( data, function( i, o ) {
 638                                         if( o.model === 'algorithms.algorithm' ) {
 639                                                 // it's an algorithm.
 640                                                 algorithmTypes[ o.pk ] = o.fields;
 641                                         } else if( o.model == 'algorithms.algorithmarg' && o.fields.external ) {
 642                                                 // it's an option for an algorithm that we should display.
 643                                                 algorithmArgs[ o.pk ] = o.fields;
 644                                         }
 645                                 });
 646                                 // TODO if it is an empty object, disable Stemweb entirely.
 647                                 if( !jQuery.isEmptyObject( algorithmTypes ) ) {
 648                                         $.each( algorithmTypes, function( pk, fields ) {
 649                                                 var algopt = $('<option>').attr( 'value', pk ).append( fields.name );
 650                                                 $('#stemweb_algorithm').append( algopt );
 651                                         });
 652                                         // Set up the relevant options for whichever algorithm is chosen.
 653                                         // "key" -> form name, option ID "stemweb_$key_opt"
 654                                         // "name" -> form label
 655                                         $('#stemweb_algorithm_help').click( function() {
 656                                                 $('#stemweb_algorithm_desc_text').toggle( 'blind' );
 657                                                 });
 658                                         $('#stemweb_algorithm').change( function() {
 659                                                 var pk = $(this).val();
 660                                                 // Display a link to the popup description, and fill in
 661                                                 // the description itself, if we have one.
 662                                                 if( 'desc' in algorithmTypes[pk] ) {
 663                                                         $('#stemweb_algorithm_desc_text').empty().append( algorithmTypes[pk].desc );
 664                                                         $('#stemweb_algorithm_desc').show();
 665                                                 } else {
 666                                                         $('#stemweb_algorithm_desc').hide();
 667                                                 }
 668                                                 $('#stemweb_runtime_options').empty();
 669                                                 $.each( algorithmTypes[pk].args, function( i, apk ) {
 670                                                         var argInfo = algorithmArgs[apk];
 671                                                         if( argInfo ) {
 672                                                                 // Make the element ID
 673                                                                 var optId = 'stemweb_' + argInfo.key + '_opt';
 674                                                                 // Make the label
 675                                                                 var optLabel = $('<label>').attr( 'for', optId )
 676                                                                         .append( argInfo.name + ": " );
 677                                                                 var optCtrl;
 678                                                                 var argType = argInfo.value;
 679                                                                 if( argType === 'positive_integer' ) {
 680                                                                         // Make it an input field of smallish size.
 681                                                                         optCtrl = $('<input>').attr( 'size', 4 );
 682                                                                 } else if ( argType === 'boolean' ) {
 683                                                                         // Make it a checkbox.
 684                                                                         optCtrl = $('<checkbox>');
 685                                                                 }
 686                                                                 // Add the name and element ID
 687                                                                 optCtrl.attr( 'name', argInfo.key ).attr( 'id', optId );
 688                                                                 // Append the label and the option itself to the form.
 689                                                                 $('#stemweb_runtime_options').append( optLabel )
 690                                                                         .append( optCtrl ).append( $('<br>') );
 691                                                         }
 692                                                 });
 693                                         });
 694                                         $('#stemweb_algorithm').change();
 695                                 }
 696                         });
 697                         // Prime the initial options
 698                 },
 699                 open: function(evt) {
 700                         $('#stemweb_run_status').empty();
 701                         $('#stemweb_tradition').attr('value', selectedTextID );
 702                         if( selectedTextInfo.stemweb_jobid == 0 ) {
 703                                 $('#stemweb_merge_reltypes').empty();
 704                                 $.each( selectedTextInfo.reltypes, function( i, r ) {
 705                                         var relation_opt = $('<option>').attr( 'value', r ).append( r );
 706                                         $('#stemweb_merge_reltypes').append( relation_opt );
 707                                 });
 708                                 $('#stemweb_merge_reltypes').multiselect({
 709                                         header: false,
 710                                         selectedList: 3
 711                                 });
 712                         }
 713                 },
 714         }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
 715                 $(event.target).parent().find('.ui-button').button("enable");
 716         if( ajaxSettings.url.indexOf( 'stemweb/' ) > -1 ) {
 717                         display_error( jqXHR, $("#stemweb_run_status") );
 718         }
 719         });
 720
 721         // Set up the download dialog
 722         $('#download-dialog').dialog({
 723                 autoOpen: false,
 724                 height: 150,
 725                 width: 300,
 726                 modal: true,
 727                 buttons: {
 728                         Download: function (evt) {
 729                                 var dlurl = _get_url([ "download", $('#download_tradition').val(), $('#download_format').val() ]);
 730                                 window.location = dlurl;
 731                         },
 732                         Done: function() {
 733                                 $('#download-dialog').dialog('close');
 734                         }
 735                 },
 736                 open: function() {
 737                         $('#download_tradition').attr('value', selectedTextID );
 738                 },
 739         }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
 740                 $(event.target).parent().find('.ui-button').button("enable");
 741         if( ajaxSettings.url.indexOf( 'download' ) > -1
 742                 && ajaxSettings.type == 'POST' ) {
 743                         display_error( jqXHR, $("#download_status") );
 744         }
 745         });
 746
 747         $('#upload-collation-dialog').dialog({
 748                 autoOpen: false,
 749                 height: 360,
 750                 width: 480,
 751                 modal: true,
 752                 buttons: {
 753                   upload: {
 754                     text: 'Upload',
 755                     id: 'upload_button',
 756                     click: function() {
 757                             $('#upload_status').empty();
 758                             $('#upload_button').button("disable");
 759                 upload_new();
 760             }
 761                   },
 762                   pick_file: {
 763                     text: 'Pick File',
 764                     id: 'pick_file_button',
 765                     click: function() {
 766                 $('#new_file').click();
 767             }
 768                   },
 769                   Cancel: function() {
 770                     $('#upload-collation-dialog').dialog('close');
 771                   }
 772                 },
 773                 open: function() {
 774                         // Set the upload button to its correct state based on
 775                         // whether a file is loaded
 776                         file_selected( $('#new_file').get(0) );
 777                         $('#upload_status').empty();
 778                 }
 779         }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
 780                 // Reset button state
 781                 file_selected( $('#new_file').get(0) );
 782                 // Display error message if applicable
 783         if( ajaxSettings.url.indexOf( 'newtradition' ) > -1
 784                 && ajaxSettings.type == 'POST' ) {
 785                         display_error( jqXHR, $("#upload_status") );
 786         }
 787         });;
 788
 789         $('#stemma_graph').mousedown( function(evt) {
 790         evt.stopPropagation();
 791         $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
 792         $('body').mousemove( function(evt) {
 793             mouse_scale = 1; // for now, was:  mouse_scale = svg_root_element.getScreenCTM().a;
 794             dx = (evt.clientX - $('#stemma_graph').data( 'mousedown_xy' )[0]) / mouse_scale;
 795             dy = (evt.clientY - $('#stemma_graph').data( 'mousedown_xy' )[1]) / mouse_scale;
 796             $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
 797             var svg_root = $('#stemma_graph svg').svg().svg('get').root();
 798             var g = $('g.graph', svg_root).get(0);
 799             current_translate = g.getAttribute( 'transform' ).split(/translate\(/)[1].split(')',1)[0].split(' ');
 800             new_transform = g.getAttribute( 'transform' ).replace( /translate\([^\)]*\)/, 'translate(' + (parseFloat(current_translate[0]) + dx) + ' ' + (parseFloat(current_translate[1]) + dy) + ')' );
 801             g.setAttribute( 'transform', new_transform );
 802             evt.returnValue = false;
 803             evt.preventDefault();
 804             return false;
 805         });
 806         $('body').mouseup( function(evt) {
 807             $('body').unbind('mousemove');
 808             $('body').unbind('mouseup');
 809         });
 810         });
 811
 812         $('#stemma_graph').mousewheel(function (event, delta) {
 813         event.returnValue = false;
 814         event.preventDefault();
 815         if (!delta || delta == null || delta == 0) delta = event.originalEvent.wheelDelta;
 816         if (!delta || delta == null || delta == 0) delta = -1 * event.originalEvent.detail;
 817         if( delta < -9 ) { delta = -9 };
 818         var z = 1 + delta/10;
 819         z = delta > 0 ? 1 : -1;
 820         var svg_root = $('#stemma_graph svg').svg().svg('get').root();
 821         var g = $('g.graph', svg_root).get(0);
 822         if (g && ((z<1 && (g.getScreenCTM().a * start_element_height) > 4.0) || (z>=1 && (g.getScreenCTM().a * start_element_height) < 1000))) {
 823             var scaleLevel = z/10;
 824             current_scale = parseFloat( g.getAttribute( 'transform' ).split(/scale\(/)[1].split(')',1)[0].split(' ')[0] );
 825             new_transform = g.getAttribute( 'transform' ).replace( /scale\([^\)]*\)/, 'scale(' + (current_scale + scaleLevel) + ')' );
 826             g.setAttribute( 'transform', new_transform );
 827         }
 828     });
 829
 830 });