1 // Global state variables
4 var selectedTextEditable;
5 var selectedStemmaID = -1;
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);
18 if( textOnLoad != "" ) {
19 // Call the click callback for the relevant text, if it is
21 $('#'+textOnLoad).click();
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") );
47 // Hide the functionality that is irrelevant
49 $('#open_stemma_add').show();
50 $('#open_textinfo_edit').show();
51 $('#relatebutton_label').text('View collation and edit relationships');
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');
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;
68 stemmata = textdata.stemmata;
69 if( stemmata.length ) {
72 selectedStemmaID = -1;
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' );
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 $('.texttitle').empty().append( selectedTextInfo.name );
90 $('#witness_num').empty().append( selectedTextInfo.witnesses.size );
91 $('#witness_list').empty().append( selectedTextInfo.witnesses.join( ', ' ) );
93 $('#owner_id').empty().append('no one');
94 if( selectedTextInfo.owner ) {
95 var owneremail = selectedTextInfo.owner;
96 var chop = owneremail.indexOf( '@' );
98 owneremail = owneremail.substr( 0, chop + 1 ) + '...';
100 $('#owner_id').empty().append( owneremail );
102 // Whether or not it is public
103 $('#not_public').empty();
104 if( selectedTextInfo['public'] == false ) {
105 $('#not_public').append('NOT ');
107 // What language setting it has, if any
108 $('#marked_language').empty().append('no language set');
109 if( selectedTextInfo.language && selectedTextInfo.language != 'Default' ) {
110 $('#marked_language').empty().append( selectedTextInfo.language );
114 // Enable / disable the appropriate buttons for paging through the stemma.
115 function show_stemmapager () {
116 $('.pager_left_button').unbind('click').addClass( 'greyed_out' );
117 $('.pager_right_button').unbind('click').addClass( 'greyed_out' );
118 if( selectedStemmaID > 0 ) {
119 $('.pager_left_button').click( function () {
120 load_stemma( selectedStemmaID - 1, selectedTextEditable );
121 }).removeClass( 'greyed_out' );
123 if( selectedStemmaID + 1 < stemmata.length ) {
124 $('.pager_right_button').click( function () {
125 load_stemma( selectedStemmaID + 1, selectedTextEditable );
126 }).removeClass( 'greyed_out' );
130 // Load a given stemma SVG into the stemmagraph box.
131 function load_stemma( idx ) {
132 // Load the stemma at idx
133 selectedStemmaID = idx;
134 show_stemmapager( selectedTextEditable );
135 $('#open_stemma_edit').hide();
136 $('#run_stexaminer').hide();
137 $('#stemma_identifier').empty();
138 // Add the relevant Stemweb functionality
139 if( selectedTextEditable ) {
140 if( selectedTextInfo.stemweb_jobid == 0 ) {
141 $('#open_stemweb_ui').show();
142 $('#query_stemweb_ui').hide();
144 $('#query_stemweb_ui').show();
145 $('#open_stemweb_ui').hide();
149 // Load the stemma and its properties
150 var stemmadata = stemmata[idx];
151 if( selectedTextEditable ) {
152 $('#open_stemma_edit').show();
154 if( stemmadata.directed ) {
155 // Stexaminer submit action
156 var stexpath = _get_url([ "stexaminer", selectedTextID, idx ]);
157 $('#run_stexaminer').attr( 'action', stexpath );
158 $('#run_stexaminer').show();
160 loadSVG( stemmadata.svg );
161 $('#stemma_identifier').text( stemmadata.name );
162 setTimeout( 'start_element_height = $("#stemma_graph .node")[0].getBBox().height;', 500 );
166 function query_stemweb_progress() {
167 var requrl = _get_url([ "stemweb", "query", selectedTextInfo.stemweb_jobid ]);
168 $.getJSON( requrl, function (data) {
169 process_stemweb_result( data );
173 function process_stemweb_result(data) {
174 // Look for a status message, either success, running, or notfound.
175 if( data.status === 'success' ) {
176 // Add the new stemmata to the textinfo and tell the user.
177 selectedTextInfo.stemweb_jobid = 0;
178 if( data.stemmata.length > 0 ) {
179 stemmata = stemmata.concat( data.stemmata );
180 if( selectedStemmaID == -1 ) {
181 // We have a stemma for the first time; load the first one.
182 load_stemma( 0, true );
184 // Move to the index of the first added stemma.
185 var newIdx = stemmata.length - data.stemmata.length;
186 load_stemma( newIdx, true );
188 alert( 'You have one or more new stemmata!' );
190 alert( 'Stemweb run finished with no stemmata...huh?!' );
192 } else if( data.status === 'running' ) {
193 // Just tell the user.
194 alert( 'Your Stemweb query is still running!' );
195 } else if( data.status === 'notfound' ) {
196 // Ask the user to refresh, for now.
197 alert( 'Your Stemweb query probably finished and reported back. Please reload to check.' );
201 // Load the SVG we are given
202 function loadSVG(svgData) {
203 var svgElement = $('#stemma_graph');
205 $(svgElement).svg('destroy');
209 onLoad : function () {
210 var theSVG = svgElement.find('svg');
211 var svgoffset = theSVG.offset();
212 var browseroffset = 1;
213 // Firefox needs a different offset, stupidly enough
214 if( navigator.userAgent.indexOf('Firefox') > -1 ) {
215 browseroffset = 3; // works for tall images
216 // ...but if the SVG is wider than it is tall, Firefox treats
217 // the top as being the top of the graph, loaded into the middle
218 // of the canvas, but then the margin at the top of the canvas
219 // extends upward. So we have to find the actual top of the canvas
220 // and correct for *that* instead.
221 var vbdim = svgElement.svg().svg('get').root().viewBox.baseVal;
222 if( vbdim.height < vbdim.width ) {
223 var vbscale = svgElement.width() / vbdim.width;
224 var vbrealheight = vbdim.height * vbscale;
225 browseroffset = 3 + ( svgElement.height() - vbrealheight ) / 2;
228 var topoffset = theSVG.position().top - svgElement.position().top - browseroffset;
229 theSVG.offset({ top: svgoffset.top - topoffset, left: svgoffset.left });
230 set_stemma_interactive( theSVG );
235 function set_stemma_interactive( svg_element ) {
236 if( selectedTextEditable ) {
237 $( "#root_tree_dialog_button_ok" ).click( function() {
238 var requrl = _get_url([ "stemmaroot", selectedTextID, selectedStemmaID ]);
239 var targetnode = $('#root_tree_dialog').data( 'selectedNode' );
240 $.post( requrl, { root: targetnode }, function (data) {
241 // Reload the new stemma
242 stemmata[selectedStemmaID] = data;
243 load_stemma( selectedStemmaID );
244 // Put away the dialog
245 $('#root_tree_dialog').data( 'selectedNode', null ).hide();
247 } ).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
248 if( ajaxSettings.url.indexOf( 'stemmaroot' ) > -1
249 && ajaxSettings.type == 'POST' ) {
250 display_error( jqXHR, $("#stemma_load_status") );
253 // TODO Clear error at some appropriate point
254 $.each( $( 'ellipse', svg_element ), function(index) {
255 var ellipse = $(this);
256 var g = ellipse.parent( 'g' );
257 g.click( function(evt) {
258 if( typeof root_tree_dialog_timeout !== 'undefined' ) { clearTimeout( root_tree_dialog_timeout ) };
259 g.unbind( 'mouseleave' );
260 var dialog = $( '#root_tree_dialog' );
261 // Note which node triggered the dialog
262 dialog.data( 'selectedNode', g.attr('id') );
263 // Position the dialog
265 dialog.css( 'top', evt.pageY + 3 );
266 dialog.css( 'left', evt.pageX + 3 );
268 root_tree_dialog_timeout = setTimeout( function() {
269 $( '#root_tree_dialog' ).data( 'selectedNode', null ).hide();
270 ellipse.removeClass( 'stemma_node_highlight' );
271 g.mouseleave( function() { ellipse.removeClass( 'stemma_node_highlight' ) } );
274 g.mouseenter( function() {
275 $( 'ellipse.stemma_node_highlight' ).removeClass( 'stemma_node_highlight' );
276 ellipse.addClass( 'stemma_node_highlight' )
278 g.mouseleave( function() { ellipse.removeClass( 'stemma_node_highlight' ) } );
283 // General-purpose error-handling function.
284 // TODO make sure this gets used throughout, where appropriate.
285 function display_error( jqXHR, el ) {
287 if( jqXHR.responseText == "" ) {
288 errmsg = "perhaps the server went down?"
292 errobj = jQuery.parseJSON( jqXHR.responseText );
293 errmsg = errobj.error;
294 } catch ( parse_err ) {
295 errmsg = "something went wrong on the server."
298 var msghtml = $('<span>').attr('class', 'error').text( "An error occurred: " + errmsg );
299 $(el).empty().append( msghtml ).show();
302 // Event to enable the upload button when a file has been selected
303 function file_selected( e ) {
304 if( e.files.length == 1 ) {
305 $('#upload_button').button('enable');
306 $('#new_file_name_container').html( '<span id="new_file_name">' + e.files[0].name + '</span>' );
308 $('#upload_button').button('disable');
309 $('#new_file_name_container').html( '(Use \'pick file\' to select a tradition file to upload.)' );
313 // Implement our own AJAX method that uses the features of XMLHttpRequest2
314 // but try to let it have a similar interface to jquery.post
315 // The data var needs to be a FormData() object.
316 // The callback will be given a single argument, which is the response data
317 // of the given type.
319 function post_xhr2( url, data, cb, type ) {
323 var xhr = new XMLHttpRequest();
324 // Set the expected response type
325 if( type === 'data' ) {
326 xhr.responseType = 'blob';
327 } else if( type === 'xml' ) {
328 xhr.responseType = 'document';
331 // Gin up an AJAX settings object
332 $.ajaxSetup({ url: url, type: 'POST' });
333 xhr.open( 'POST', url, true );
334 // Handle the results
335 xhr.onload = function( e ) {
336 // Get the response and parse it
337 // Call the callback with the response, whatever it was
339 if( xhrs.status > 199 && xhrs.status < 300 ) { // Success
341 if( type === 'json' ) {
342 resp = $.parseJSON( xhrs.responseText );
343 } else if ( type === 'xml' ) {
344 resp = xhrs.responseXML;
345 } else if ( type === 'text' ) {
346 resp = xhrs.responseText;
348 resp = xhrs.response;
352 // Trigger the ajaxError...
353 _trigger_ajaxerror( e );
356 xhr.onerror = _trigger_ajaxerror;
357 xhr.onabort = _trigger_ajaxerror;
361 function _trigger_ajaxerror( e ) {
363 var thrown = xhr.statusText || 'Request error';
364 jQuery.event.trigger( 'ajaxError', [ xhr, $.ajaxSettings, thrown ]);
367 function upload_new () {
368 // Serialize the upload form, get the file and attach it to the request,
369 // POST the lot and handle the response.
370 var newfile = $('#new_file').get(0).files[0];
371 var reader = new FileReader();
372 reader.onload = function( evt ) {
373 var data = new FormData();
374 $.each( $('#new_tradition').serializeArray(), function( i, o ) {
375 data.append( o.name, o.value );
377 data.append( 'file', newfile );
378 var upload_url = _get_url([ 'newtradition' ]);
379 post_xhr2( upload_url, data, function( ret ) {
381 $('#upload-collation-dialog').dialog('close');
383 loadTradition( ret.id, ret.name, 1 );
384 } else if( ret.error ) {
385 $('#upload_status').empty().append(
386 $('<span>').attr('class', 'error').append( ret.error ) );
390 reader.onerror = function( evt ) {
391 var err_resp = 'File read error';
392 if( e.name == 'NotFoundError' ) {
393 err_resp = 'File not found';
394 } else if ( e.name == 'NotReadableError' ) {
395 err_resp == 'File unreadable - is it yours?';
396 } else if ( e.name == 'EncodingError' ) {
397 err_resp == 'File cannot be encoded - is it too long?';
398 } else if ( e.name == 'SecurityError' ) {
399 err_resp == 'File read security error';
401 // Fake a jqXHR object that we can pass to our generic error handler.
402 var jqxhr = { responseText: '{error:"' + err_resp + '"}' };
403 display_error( jqxhr, $('#upload_status') );
404 $('#upload_button').button('disable');
407 reader.readAsBinaryString( newfile );
410 // Utility function to neatly construct an application URL
411 function _get_url( els ) {
412 return basepath + els.join('/');
415 // TODO Attach unified ajaxError handler to document
416 $(document).ready( function() {
417 // See if we have the browser functionality we need
418 // TODO Also think of a test for SVG readiness
419 if( !!window.FileReader && !!window.File ) {
420 $('#compatibility_check').empty();
423 // hide dialog not yet in use
424 $('#root_tree_dialog').hide();
426 // call out to load the directory div
427 $('#textinfo_container').hide();
428 $('#textinfo_waitbox').hide();
431 // Set up the textinfo edit dialog
432 $('#textinfo-edit-dialog').dialog({
438 Save: function (evt) {
439 $("#edit_textinfo_status").empty();
440 var mybuttons = $(evt.target).closest('button').parent().find('button');
441 mybuttons.button( 'disable' );
442 var requrl = _get_url([ "textinfo", selectedTextID ]);
443 var reqparam = $('#edit_textinfo').serialize();
444 $.post( requrl, reqparam, function (data) {
445 // Reload the selected text fields
446 selectedTextInfo = data;
448 // Reenable the button and close the form
449 mybuttons.button("enable");
450 $('#textinfo-edit-dialog').dialog('close');
454 $('#textinfo-edit-dialog').dialog('close');
458 $("#edit_textinfo_status").empty();
459 // Populate the form fields with the current values
460 // edit_(name, language, public, owner)
461 $.each([ 'name', 'language', 'owner' ], function( idx, k ) {
462 var fname = '#edit_' + k;
463 // Special case: language Default is basically language null
464 if( k == 'language' && selectedTextInfo[k] == 'Default' ) {
467 $(fname).val( selectedTextInfo[k] );
470 if( selectedTextInfo['public'] == true ) {
471 $('#edit_public').attr('checked','true');
473 $('#edit_public').removeAttr('checked');
476 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
477 $(event.target).parent().find('.ui-button').button("enable");
478 if( ajaxSettings.url.indexOf( 'textinfo' ) > -1
479 && ajaxSettings.type == 'POST' ) {
480 display_error( jqXHR, $("#edit_textinfo_status") );
485 // Set up the stemma editor dialog
486 $('#stemma-edit-dialog').dialog({
492 Save: function (evt) {
493 $("#edit_stemma_status").empty();
494 var mybuttons = $(evt.target).closest('button').parent().find('button');
495 mybuttons.button( 'disable' );
496 var stemmaseq = $('#stemmaseq').val();
497 var requrl = _get_url([ "stemma", selectedTextID, stemmaseq ]);
498 var reqparam = { 'dot': $('#dot_field').val() };
499 // TODO We need to stash the literal SVG string in stemmata
500 // somehow. Implement accept header on server side to decide
501 // whether to send application/json or application/xml?
502 $.post( requrl, reqparam, function (data) {
503 // We received a stemma SVG string in return.
504 // Update the current stemma sequence number
505 selectedStemmaID = data.stemmaid;
506 delete data.stemmaid;
507 // Stash the answer in the appropriate spot in our stemma array
508 stemmata[selectedStemmaID] = data;
509 // Display the new stemma
510 load_stemma( selectedStemmaID, true );
511 // Reenable the button and close the form
512 mybuttons.button("enable");
513 $('#stemma-edit-dialog').dialog('close');
517 $('#stemma-edit-dialog').dialog('close');
520 open: function(evt) {
521 $("#edit_stemma_status").empty();
522 var stemmaseq = $('#stemmaseq').val();
523 if( stemmaseq == 'n' ) {
524 // If we are creating a new stemma, populate the textarea with a
526 $(evt.target).dialog('option', 'title', 'Add a new stemma')
527 $('#dot_field').val( "digraph \"NAME STEMMA HERE\" {\n\n}" );
529 // If we are editing a stemma, grab its stemmadot and populate the
530 // textarea with that.
531 $(evt.target).dialog('option', 'title', 'Edit selected stemma')
532 $('#dot_field').val( 'Loading, please wait...' );
533 var doturl = _get_url([ "stemmadot", selectedTextID, stemmaseq ]);
534 $.getJSON( doturl, function (data) {
535 // Re-insert the line breaks
536 var dotstring = data.dot.replace(/\|n/gm, "\n");
537 $('#dot_field').val( dotstring );
541 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
542 $(event.target).parent().find('.ui-button').button("enable");
543 if( ajaxSettings.url.indexOf( 'stemma' ) > -1
544 && ajaxSettings.type == 'POST' ) {
545 display_error( jqXHR, $("#edit_stemma_status") );
549 $('#stemweb-ui-dialog').dialog({
555 Run: function (evt) {
556 $("#stemweb_run_status").empty();
557 var mybuttons = $(evt.target).closest('button').parent().find('button');
558 mybuttons.button( 'disable' );
559 var requrl = _get_url([ "stemweb", "request" ]);
560 var reqparam = $('#call_stemweb').serialize();
561 // TODO We need to stash the literal SVG string in stemmata
562 // somehow. Implement accept header on server side to decide
563 // whether to send application/json or application/xml?
564 $.getJSON( requrl, reqparam, function (data) {
565 mybuttons.button("enable");
566 $('#stemweb-ui-dialog').dialog('close');
567 if( 'jobid' in data ) {
568 // There is a pending job.
569 selectedTextInfo.stemweb_jobid = data.jobid;
570 alert("Your request has been submitted to Stemweb.\nThe resulting tree will appear in due course.");
571 // Reload the current stemma to rejigger the buttons
572 load_stemma( selectedStemmaID, true );
574 // We appear to have an answer; process it.
575 process_stemweb_result( data );
580 $('#stemweb-ui-dialog').dialog('close');
583 create: function(evt) {
584 // Call out to Stemweb to get the algorithm options, with which we
585 // populate the form.
586 var algorithmTypes = {};
587 var algorithmArgs = {};
588 var requrl = _get_url([ "stemweb", "available" ]);
589 $.getJSON( requrl, function( data ) {
590 $.each( data, function( i, o ) {
591 if( o.model === 'algorithms.algorithm' ) {
592 // it's an algorithm.
593 algorithmTypes[ o.pk ] = o.fields;
594 } else if( o.model == 'algorithms.algorithmarg' && o.fields.external ) {
595 // it's an option for an algorithm that we should display.
596 algorithmArgs[ o.pk ] = o.fields;
599 // TODO if it is an empty object, disable Stemweb entirely.
600 if( !jQuery.isEmptyObject( algorithmTypes ) ) {
601 $.each( algorithmTypes, function( pk, fields ) {
602 var algopt = $('<option>').attr( 'value', pk ).append( fields.name );
603 $('#stemweb_algorithm').append( algopt );
605 // Set up the relevant options for whichever algorithm is chosen.
606 // "key" -> form name, option ID "stemweb_$key_opt"
607 // "name" -> form label
608 $('#stemweb_algorithm_help').click( function() {
609 $('#stemweb_algorithm_desc_text').toggle( 'blind' );
611 $('#stemweb_algorithm').change( function() {
612 var pk = $(this).val();
613 // Display a link to the popup description, and fill in
614 // the description itself, if we have one.
615 if( 'desc' in algorithmTypes[pk] ) {
616 $('#stemweb_algorithm_desc_text').empty().append( algorithmTypes[pk].desc );
617 $('#stemweb_algorithm_desc').show();
619 $('#stemweb_algorithm_desc').hide();
621 $('#stemweb_runtime_options').empty();
622 $.each( algorithmTypes[pk].args, function( i, apk ) {
623 var argInfo = algorithmArgs[apk];
625 // Make the element ID
626 var optId = 'stemweb_' + argInfo.key + '_opt';
628 var optLabel = $('<label>').attr( 'for', optId )
629 .append( argInfo.name + ": " );
631 var argType = argInfo.value;
632 if( argType === 'positive_integer' ) {
633 // Make it an input field of smallish size.
634 optCtrl = $('<input>').attr( 'size', 4 );
635 } else if ( argType === 'boolean' ) {
636 // Make it a checkbox.
637 optCtrl = $('<checkbox>');
639 // Add the name and element ID
640 optCtrl.attr( 'name', argInfo.key ).attr( 'id', optId );
641 // Append the label and the option itself to the form.
642 $('#stemweb_runtime_options').append( optLabel )
643 .append( optCtrl ).append( $('<br>') );
647 $('#stemweb_algorithm').change();
650 // Prime the initial options
652 open: function(evt) {
653 $('#stemweb_run_status').empty();
654 $('#stemweb_tradition').attr('value', selectedTextID );
655 $('#stemweb_merge_reltypes').empty();
656 $.each( selectedTextInfo.reltypes, function( i, r ) {
657 var relation_opt = $('<option>').attr( 'value', r ).append( r );
658 $('#stemweb_merge_reltypes').append( relation_opt );
660 $('#stemweb_merge_reltypes').multiselect({
665 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
666 $(event.target).parent().find('.ui-button').button("enable");
667 if( ajaxSettings.url.indexOf( 'stemweb/request' ) > -1 ) {
668 display_error( jqXHR, $("#stemweb_run_status") );
672 // Set up the download dialog
673 $('#download-dialog').dialog({
679 Download: function (evt) {
680 var dlurl = _get_url([ "download", $('#download_tradition').val(), $('#download_format').val() ]);
681 window.location = dlurl;
684 $('#download-dialog').dialog('close');
688 $('#download_tradition').attr('value', selectedTextID );
690 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
691 $(event.target).parent().find('.ui-button').button("enable");
692 if( ajaxSettings.url.indexOf( 'download' ) > -1
693 && ajaxSettings.type == 'POST' ) {
694 display_error( jqXHR, $("#download_status") );
698 $('#upload-collation-dialog').dialog({
708 $('#upload_status').empty();
709 $('#upload_button').button("disable");
715 id: 'pick_file_button',
717 $('#new_file').click();
721 $('#upload-collation-dialog').dialog('close');
725 // Set the upload button to its correct state based on
726 // whether a file is loaded
727 file_selected( $('#new_file').get(0) );
728 $('#upload_status').empty();
730 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
731 // Reset button state
732 file_selected( $('#new_file').get(0) );
733 // Display error message if applicable
734 if( ajaxSettings.url.indexOf( 'newtradition' ) > -1
735 && ajaxSettings.type == 'POST' ) {
736 display_error( jqXHR, $("#upload_status") );
740 $('#stemma_graph').mousedown( function(evt) {
741 evt.stopPropagation();
742 $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
743 $('body').mousemove( function(evt) {
744 mouse_scale = 1; // for now, was: mouse_scale = svg_root_element.getScreenCTM().a;
745 dx = (evt.clientX - $('#stemma_graph').data( 'mousedown_xy' )[0]) / mouse_scale;
746 dy = (evt.clientY - $('#stemma_graph').data( 'mousedown_xy' )[1]) / mouse_scale;
747 $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
748 var svg_root = $('#stemma_graph svg').svg().svg('get').root();
749 var g = $('g.graph', svg_root).get(0);
750 current_translate = g.getAttribute( 'transform' ).split(/translate\(/)[1].split(')',1)[0].split(' ');
751 new_transform = g.getAttribute( 'transform' ).replace( /translate\([^\)]*\)/, 'translate(' + (parseFloat(current_translate[0]) + dx) + ' ' + (parseFloat(current_translate[1]) + dy) + ')' );
752 g.setAttribute( 'transform', new_transform );
753 evt.returnValue = false;
754 evt.preventDefault();
757 $('body').mouseup( function(evt) {
758 $('body').unbind('mousemove');
759 $('body').unbind('mouseup');
763 $('#stemma_graph').mousewheel(function (event, delta) {
764 event.returnValue = false;
765 event.preventDefault();
766 if (!delta || delta == null || delta == 0) delta = event.originalEvent.wheelDelta;
767 if (!delta || delta == null || delta == 0) delta = -1 * event.originalEvent.detail;
768 if( delta < -9 ) { delta = -9 };
769 var z = 1 + delta/10;
770 z = delta > 0 ? 1 : -1;
771 var svg_root = $('#stemma_graph svg').svg().svg('get').root();
772 var g = $('g.graph', svg_root).get(0);
773 if (g && ((z<1 && (g.getScreenCTM().a * start_element_height) > 4.0) || (z>=1 && (g.getScreenCTM().a * start_element_height) < 1000))) {
774 var scaleLevel = z/10;
775 current_scale = parseFloat( g.getAttribute( 'transform' ).split(/scale\(/)[1].split(')',1)[0].split(' ')[0] );
776 new_transform = g.getAttribute( 'transform' ).replace( /scale\([^\)]*\)/, 'scale(' + (current_scale + scaleLevel) + ')' );
777 g.setAttribute( 'transform', new_transform );