1 // Global state variables
4 var selectedStemmaID = -1;
7 // Load the names of the appropriate traditions into the directory div.
8 function refreshDirectory () {
9 var lmesg = $('#loading_message').clone();
10 $('#directory').empty().append( lmesg.contents() );
11 $('#directory').load( _get_url(["directory"]),
12 function(response, status, xhr) {
13 if (status == "error") {
14 var msg = "An error occurred: ";
15 $("#directory").html(msg + xhr.status + " " + xhr.statusText);
17 if( textOnLoad != "" ) {
18 // Call the click callback for the relevant text, if it is
20 $('#'+textOnLoad).click();
28 // Load a tradition with its information and stemmata into the tradition
29 // view pane. Calls load_textinfo.
30 function loadTradition( textid, textname, editable ) {
31 selectedTextID = textid;
32 // First insert the placeholder image and register an error handler
33 $('#textinfo_load_status').empty();
34 $('#stemma_graph').empty();
35 $('#textinfo_waitbox').show();
36 $('#textinfo_container').hide().ajaxError(
37 function(event, jqXHR, ajaxSettings, thrownError) {
38 if( ajaxSettings.url.indexOf( 'textinfo' ) > -1 && ajaxSettings.type == 'GET' ) {
39 $('#textinfo_waitbox').hide();
40 $('#textinfo_container').show();
41 display_error( jqXHR, $("#textinfo_load_status") );
45 // Hide the functionality that is irrelevant
47 $('#open_stemma_add').show();
48 $('#open_stemma_edit').show();
49 $('#open_textinfo_edit').show();
51 $('#open_stemma_add').hide();
52 $('#open_stemma_edit').hide();
53 $('#open_textinfo_edit').hide();
56 // Then get and load the actual content.
57 // TODO: scale #stemma_graph both horizontally and vertically
58 // TODO: load svgs from SVG.Jquery (to make scaling react in Safari)
59 $.getJSON( _get_url([ "textinfo", textid ]), function (textdata) {
60 // Add the scalar data
61 selectedTextInfo = textdata;
63 // Add the stemma(ta) and set up the stexaminer button
64 stemmata = textdata.stemmata;
65 if( stemmata.length ) {
67 $('#run_stexaminer').show();
69 selectedStemmaID = -1;
70 $('#open_stemma_edit').hide();
71 $('#run_stexaminer').hide();
73 load_stemma( selectedStemmaID );
74 // Set up the relationship mapper button
75 $('#run_relater').attr( 'action', _get_url([ "relation", textid ]) );
79 // Load the metadata about a tradition into the appropriate div.
80 function load_textinfo() {
81 $('#textinfo_waitbox').hide();
82 $('#textinfo_load_status').empty();
83 $('#textinfo_container').show();
84 $('.texttitle').empty().append( selectedTextInfo.name );
86 $('#witness_num').empty().append( selectedTextInfo.witnesses.size );
87 $('#witness_list').empty().append( selectedTextInfo.witnesses.join( ', ' ) );
89 $('#owner_id').empty().append('no one');
90 if( selectedTextInfo.owner ) {
91 $('#owner_id').empty().append( selectedTextInfo.owner );
93 // Whether or not it is public
94 $('#not_public').empty();
95 if( selectedTextInfo['public'] == false ) {
96 $('#not_public').append('NOT ');
98 // What language setting it has, if any
99 $('#marked_language').empty().append('no language set');
100 if( selectedTextInfo.language && selectedTextInfo.language != 'Default' ) {
101 $('#marked_language').empty().append( selectedTextInfo.language );
105 // Enable / disable the appropriate buttons for paging through the stemma.
106 function show_stemmapager () {
107 $('.pager_left_button').unbind('click').addClass( 'greyed_out' );
108 $('.pager_right_button').unbind('click').addClass( 'greyed_out' );
109 if( selectedStemmaID > 0 ) {
110 $('.pager_left_button').click( function () {
111 load_stemma( selectedStemmaID - 1 );
112 }).removeClass( 'greyed_out' );
114 if( selectedStemmaID + 1 < stemmata.length ) {
115 $('.pager_right_button').click( function () {
116 load_stemma( selectedStemmaID + 1 );
117 }).removeClass( 'greyed_out' );
121 // Load a given stemma SVG into the stemmagraph box.
122 function load_stemma( idx ) {
123 // Load the stemma at idx
124 selectedStemmaID = idx;
127 loadSVG( stemmata[idx] );
128 // Stexaminer submit action
129 var stexpath = _get_url([ "stexaminer", selectedTextID, idx ]);
130 $('#run_stexaminer').attr( 'action', stexpath );
131 setTimeout( 'start_element_height = $("#stemma_graph .node")[0].getBBox().height;', 500 );
135 // Load the SVG we are given
136 function loadSVG(svgData) {
137 var svgElement = $('#stemma_graph');
139 $(svgElement).svg('destroy');
143 onLoad : function () {
144 var theSVG = svgElement.find('svg');
145 var svgoffset = theSVG.offset();
146 var browseroffset = 1;
147 // Firefox needs a different offset, stupidly enough
148 if( navigator.userAgent.indexOf('Firefox') > -1 ) {
149 browseroffset = 3; // works for tall images
150 // ...but if the SVG is wider than it is tall, Firefox treats
151 // the top as being the top of the graph, loaded into the middle
152 // of the canvas, but then the margin at the top of the canvas
153 // extends upward. So we have to find the actual top of the canvas
154 // and correct for *that* instead.
155 var vbdim = svgElement.svg().svg('get').root().viewBox.baseVal;
156 if( vbdim.height < vbdim.width ) {
157 var vbscale = svgElement.width() / vbdim.width;
158 var vbrealheight = vbdim.height * vbscale;
159 browseroffset = 3 + ( svgElement.height() - vbrealheight ) / 2;
162 var topoffset = theSVG.position().top - svgElement.position().top - browseroffset;
163 theSVG.offset({ top: svgoffset.top - topoffset, left: svgoffset.left });
168 // General-purpose error-handling function.
169 // TODO make sure this gets used throughout, where appropriate.
170 function display_error( jqXHR, el ) {
172 if( jqXHR.responseText == "" ) {
173 errmsg = "perhaps the server went down?"
177 errobj = jQuery.parseJSON( jqXHR.responseText );
178 errmsg = errobj.error;
179 } catch ( parse_err ) {
180 errmsg = "something went wrong on the server."
183 var msghtml = $('<span>').attr('class', 'error').text( "An error occurred: " + errmsg );
184 $(el).empty().append( msghtml ).show();
187 function start_upload_dialog() {
188 if( typeof uploader != 'undefined' ){ uploader.destroy() };
189 $('#upload_status').empty();
190 $('#upload_button').button('disable');
191 $('#upload-collation-dialog').dialog('open');
192 $('#upload-collation-dialog').dialog('option', 'attach_uploader')();
195 // Utility function to neatly construct an application URL
196 function _get_url( els ) {
197 return basepath + els.join('/');
201 $(document).ready( function() {
202 // call out to load the directory div
203 $('#textinfo_container').hide();
204 $('#textinfo_waitbox').hide();
207 // Set up the textinfo edit dialog
208 $('#textinfo-edit-dialog').dialog({
214 Save: function (evt) {
215 $("#edit_textinfo_status").empty();
216 $(evt.target).button("disable");
217 var requrl = _get_url([ "textinfo", selectedTextID ]);
218 var reqparam = $('#edit_textinfo').serialize();
219 $.post( requrl, reqparam, function (data) {
220 // Reload the selected text fields
221 selectedTextInfo = data;
223 // Reenable the button and close the form
224 $(evt.target).button("enable");
225 $('#textinfo-edit-dialog').dialog('close');
229 $('#textinfo-edit-dialog').dialog('close');
233 $("#edit_textinfo_status").empty();
234 // Populate the form fields with the current values
235 // edit_(name, language, public, owner)
236 $.each([ 'name', 'language', 'owner' ], function( idx, k ) {
237 var fname = '#edit_' + k;
238 // Special case: language Default is basically language null
239 if( k == 'language' && selectedTextInfo[k] == 'Default' ) {
242 $(fname).val( selectedTextInfo[k] );
245 if( selectedTextInfo['public'] == true ) {
246 $('#edit_public').attr('checked','true');
248 $('#edit_public').removeAttr('checked');
251 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
252 $(event.target).parent().find('.ui-button').button("enable");
253 if( ajaxSettings.url.indexOf( 'textinfo' ) > -1
254 && ajaxSettings.type == 'POST' ) {
255 display_error( jqXHR, $("#edit_textinfo_status") );
260 // Set up the stemma editor dialog
261 $('#stemma-edit-dialog').dialog({
267 Save: function (evt) {
268 $("#edit_stemma_status").empty();
269 $(evt.target).button("disable");
270 var stemmaseq = $('#stemmaseq').val();
271 var requrl = _get_url([ "stemma", selectedTextID, stemmaseq ]);
272 var reqparam = { 'dot': $('#dot_field').val() };
273 // TODO We need to stash the literal SVG string in stemmata
274 // somehow. Implement accept header on server side to decide
275 // whether to send application/json or application/xml?
276 $.post( requrl, reqparam, function (data) {
277 // We received a stemma SVG string in return.
278 // Update the current stemma sequence number
279 selectedStemmaID = data.stemmaid;
280 // Stash the answer in our SVG array
281 stemmata[selectedStemmaID] = data.stemmasvg;
282 // Display the new stemma
283 load_stemma( selectedStemmaID );
284 // Reenable the button and close the form
285 $(evt.target).button("enable");
286 $('#stemma-edit-dialog').dialog('close');
290 $('#stemma-edit-dialog').dialog('close');
293 open: function(evt) {
294 $("#edit_stemma_status").empty();
295 var stemmaseq = $('#stemmaseq').val();
296 if( stemmaseq == 'n' ) {
297 // If we are creating a new stemma, populate the textarea with a
299 $(evt.target).dialog('option', 'title', 'Add a new stemma')
300 $('#dot_field').val( "digraph stemma {\n\n}" );
302 // If we are editing a stemma, grab its stemmadot and populate the
303 // textarea with that.
304 $(evt.target).dialog('option', 'title', 'Edit selected stemma')
305 $('#dot_field').val( 'Loading, please wait...' );
306 var doturl = _get_url([ "stemmadot", selectedTextID, stemmaseq ]);
307 $.getJSON( doturl, function (data) {
308 // Re-insert the line breaks
309 var dotstring = data.dot.replace(/\|n/gm, "\n");
310 $('#dot_field').val( dotstring );
314 }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
315 $(event.target).parent().find('.ui-button').button("enable");
316 if( ajaxSettings.url.indexOf( 'stemma' ) > -1
317 && ajaxSettings.type == 'POST' ) {
318 display_error( jqXHR, $("#edit_stemma_status") );
322 $('#upload-collation-dialog').dialog({
330 id: "pick_uploadfile_button",
337 $('#upload_status').empty();
343 $('#upload-collation-dialog').dialog('close');
346 attach_uploader: function() {
347 create_uploader( _get_url([ "newtradition" ]) );
348 $('#filelist').empty().html( 'Use the \'Pick\' button to choose a source fileā¦' );
352 $('#stemma_graph').mousedown( function(evt) {
353 evt.stopPropagation();
354 $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
355 $('body').mousemove( function(evt) {
356 mouse_scale = 1; // for now, was: mouse_scale = svg_root_element.getScreenCTM().a;
357 dx = (evt.clientX - $('#stemma_graph').data( 'mousedown_xy' )[0]) / mouse_scale;
358 dy = (evt.clientY - $('#stemma_graph').data( 'mousedown_xy' )[1]) / mouse_scale;
359 $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
360 var svg_root = $('#stemma_graph svg').svg().svg('get').root();
361 var g = $('g.graph', svg_root).get(0);
362 current_translate = g.getAttribute( 'transform' ).split(/translate\(/)[1].split(')',1)[0].split(' ');
363 new_transform = g.getAttribute( 'transform' ).replace( /translate\([^\)]*\)/, 'translate(' + (parseFloat(current_translate[0]) + dx) + ' ' + (parseFloat(current_translate[1]) + dy) + ')' );
364 g.setAttribute( 'transform', new_transform );
365 evt.returnValue = false;
366 evt.preventDefault();
369 $('body').mouseup( function(evt) {
370 $('body').unbind('mousemove');
371 $('body').unbind('mouseup');
375 $('#stemma_graph').mousewheel(function (event, delta) {
376 event.returnValue = false;
377 event.preventDefault();
378 if (!delta || delta == null || delta == 0) delta = event.originalEvent.wheelDelta;
379 if (!delta || delta == null || delta == 0) delta = -1 * event.originalEvent.detail;
380 if( delta < -9 ) { delta = -9 };
381 var z = 1 + delta/10;
382 z = delta > 0 ? 1 : -1;
383 var svg_root = $('#stemma_graph svg').svg().svg('get').root();
384 var g = $('g.graph', svg_root).get(0);
385 if (g && ((z<1 && (g.getScreenCTM().a * start_element_height) > 4.0) || (z>=1 && (g.getScreenCTM().a * start_element_height) < 1000))) {
386 var scaleLevel = z/10;
387 current_scale = parseFloat( g.getAttribute( 'transform' ).split(/scale\(/)[1].split(')',1)[0].split(' ')[0] );
388 new_transform = g.getAttribute( 'transform' ).replace( /scale\([^\)]*\)/, 'scale(' + (current_scale + scaleLevel) + ')' );
389 g.setAttribute( 'transform', new_transform );