X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=root%2Fjs%2Fcomponentload.js;h=3bb43a93fac8d49bdc4351a76b53ebf095030234;hb=be536c891e67a3143aeef68e97ae3c351fc22149;hp=cc5c1d364b343e1a5e7c3d37d0acfdff3b9a90b5;hpb=f007ac1ef36dd878cce5237589666755f4f941e8;p=scpubgit%2Fstemmaweb.git
diff --git a/root/js/componentload.js b/root/js/componentload.js
index cc5c1d3..3bb43a9 100644
--- a/root/js/componentload.js
+++ b/root/js/componentload.js
@@ -1,37 +1,527 @@
-function loadTradition( textid, textname ) {
- // First insert the placeholder image
- var basepath = window.location.pathname
- if( basepath.lastIndexOf('/') == basepath.length - 1 ) {
- basepath = basepath.slice( 0, basepath.length - 1)
- };
- var imghtml = '
'
+// Global state variables
+var selectedTextID;
+var selectedTextInfo;
+var selectedStemmaID = -1;
+var stemmata = [];
+
+// Load the names of the appropriate traditions into the directory div.
+function refreshDirectory () {
+ var lmesg = $('#loading_message').clone();
+ $('#directory').empty().append( lmesg.contents() );
+ $('#directory').load( _get_url(["directory"]),
+ function(response, status, xhr) {
+ if (status == "error") {
+ var msg = "An error occurred: ";
+ $("#directory").html(msg + xhr.status + " " + xhr.statusText);
+ } else {
+ if( textOnLoad != "" ) {
+ // Call the click callback for the relevant text, if it is
+ // in the page.
+ $('#'+textOnLoad).click();
+ textOnLoad = "";
+ }
+ }
+ }
+ );
+}
+
+// Load a tradition with its information and stemmata into the tradition
+// view pane. Calls load_textinfo.
+function loadTradition( textid, textname, editable ) {
+ selectedTextID = textid;
+ // First insert the placeholder image and register an error handler
+ $('#textinfo_load_status').empty();
$('#stemma_graph').empty();
- $('#variant_graph').empty();
- $('#stemma_graph').append( imghtml );
- $('#variant_graph').append( imghtml );
+ $('#textinfo_waitbox').show();
+ $('#textinfo_container').hide().ajaxError(
+ function(event, jqXHR, ajaxSettings, thrownError) {
+ if( ajaxSettings.url.indexOf( 'textinfo' ) > -1 && ajaxSettings.type == 'GET' ) {
+ $('#textinfo_waitbox').hide();
+ $('#textinfo_container').show();
+ display_error( jqXHR, $("#textinfo_load_status") );
+ }
+ });
+
+ // Hide the functionality that is irrelevant
+ if( editable ) {
+ $('#open_stemma_add').show();
+ $('#open_stemma_edit').show();
+ $('#open_textinfo_edit').show();
+ $('#relatebutton_label').text('View collation and edit relationships');
+ } else {
+ $('#open_stemma_add').hide();
+ $('#open_stemma_edit').hide();
+ $('#open_textinfo_edit').hide();
+ $('#relatebutton_label').text('View collation and relationships');
+ }
+
// Then get and load the actual content.
- // TODO: scale #stemma_grpah both horizontally and vertically
+ // TODO: scale #stemma_graph both horizontally and vertically
// TODO: load svgs from SVG.Jquery (to make scaling react in Safari)
- $('#stemma_graph').load( basepath + "/stemma/" + textid , function() {
- var stemma_svg_element = $('#stemma_graph svg').svg().svg('get').root();
- console.log( stemma_svg_element );
- stemma_svg_element.height.baseVal.value = $('#stemma_graph').height();
+ $.getJSON( _get_url([ "textinfo", textid ]), function (textdata) {
+ // Add the scalar data
+ selectedTextInfo = textdata;
+ load_textinfo();
+ // Add the stemma(ta) and set up the stexaminer button
+ stemmata = textdata.stemmata;
+ if( stemmata.length ) {
+ selectedStemmaID = 0;
+ $('#run_stexaminer').show();
+ } else {
+ selectedStemmaID = -1;
+ $('#open_stemma_edit').hide();
+ $('#run_stexaminer').hide();
+ }
+ load_stemma( selectedStemmaID );
+ // Set up the relationship mapper button
+ $('#run_relater').attr( 'action', _get_url([ "relation", textid ]) );
+ // Set up the download button
+ $('#dl_tradition').attr( 'href', _get_url([ "download", textid ]) );
+ $('#dl_tradition').attr( 'download', selectedTextInfo.name + '.xml' );
});
- $('#variant_graph').load( basepath + "/variantgraph/" + textid , function() {
- var variant_svg_element = $('#variant_graph svg').svg().svg('get').root();
- var svg_height = variant_svg_element.height.baseVal.value;
- var svg_width = variant_svg_element.width.baseVal.value;
- var container_height = $('#variant_graph').height();
- variant_svg_element.height.baseVal.value = container_height;
- variant_svg_element.width.baseVal.value = (svg_width/svg_height * container_height);
+}
+
+// Load the metadata about a tradition into the appropriate div.
+function load_textinfo() {
+ $('#textinfo_waitbox').hide();
+ $('#textinfo_load_status').empty();
+ $('#textinfo_container').show();
+ $('.texttitle').empty().append( selectedTextInfo.name );
+ // Witnesses
+ $('#witness_num').empty().append( selectedTextInfo.witnesses.size );
+ $('#witness_list').empty().append( selectedTextInfo.witnesses.join( ', ' ) );
+ // Who the owner is
+ $('#owner_id').empty().append('no one');
+ if( selectedTextInfo.owner ) {
+ var owneremail = selectedTextInfo.owner;
+ var chop = owneremail.indexOf( '@' );
+ if( chop > -1 ) {
+ owneremail = owneremail.substr( 0, chop + 1 ) + '...';
+ }
+ $('#owner_id').empty().append( owneremail );
+ }
+ // Whether or not it is public
+ $('#not_public').empty();
+ if( selectedTextInfo['public'] == false ) {
+ $('#not_public').append('NOT ');
+ }
+ // What language setting it has, if any
+ $('#marked_language').empty().append('no language set');
+ if( selectedTextInfo.language && selectedTextInfo.language != 'Default' ) {
+ $('#marked_language').empty().append( selectedTextInfo.language );
+ }
+}
+
+// Enable / disable the appropriate buttons for paging through the stemma.
+function show_stemmapager () {
+ $('.pager_left_button').unbind('click').addClass( 'greyed_out' );
+ $('.pager_right_button').unbind('click').addClass( 'greyed_out' );
+ if( selectedStemmaID > 0 ) {
+ $('.pager_left_button').click( function () {
+ load_stemma( selectedStemmaID - 1 );
+ }).removeClass( 'greyed_out' );
+ }
+ if( selectedStemmaID + 1 < stemmata.length ) {
+ $('.pager_right_button').click( function () {
+ load_stemma( selectedStemmaID + 1 );
+ }).removeClass( 'greyed_out' );
+ }
+}
+
+// Load a given stemma SVG into the stemmagraph box.
+function load_stemma( idx ) {
+ // Load the stemma at idx
+ selectedStemmaID = idx;
+ show_stemmapager();
+ if( idx > -1 ) {
+ // Load the SVG and identifier of the stemma
+ var stemmadata = stemmata[idx];
+ loadSVG( stemmadata['svg'] );
+ $('#stemma_identifier').empty().text( stemmadata['name'] );
+ // Stexaminer submit action
+ var stexpath = _get_url([ "stexaminer", selectedTextID, idx ]);
+ $('#run_stexaminer').attr( 'action', stexpath );
+ setTimeout( 'start_element_height = $("#stemma_graph .node")[0].getBBox().height;', 500 );
+ }
+}
+
+// Load the SVG we are given
+function loadSVG(svgData) {
+ var svgElement = $('#stemma_graph');
+
+ $(svgElement).svg('destroy');
+
+ $(svgElement).svg({
+ loadURL: svgData,
+ onLoad : function () {
+ var theSVG = svgElement.find('svg');
+ var svgoffset = theSVG.offset();
+ var browseroffset = 1;
+ // Firefox needs a different offset, stupidly enough
+ if( navigator.userAgent.indexOf('Firefox') > -1 ) {
+ browseroffset = 3; // works for tall images
+ // ...but if the SVG is wider than it is tall, Firefox treats
+ // the top as being the top of the graph, loaded into the middle
+ // of the canvas, but then the margin at the top of the canvas
+ // extends upward. So we have to find the actual top of the canvas
+ // and correct for *that* instead.
+ var vbdim = svgElement.svg().svg('get').root().viewBox.baseVal;
+ if( vbdim.height < vbdim.width ) {
+ var vbscale = svgElement.width() / vbdim.width;
+ var vbrealheight = vbdim.height * vbscale;
+ browseroffset = 3 + ( svgElement.height() - vbrealheight ) / 2;
+ }
+ }
+ var topoffset = theSVG.position().top - svgElement.position().top - browseroffset;
+ theSVG.offset({ top: svgoffset.top - topoffset, left: svgoffset.left });
+ }
});
+}
+
+// General-purpose error-handling function.
+// TODO make sure this gets used throughout, where appropriate.
+function display_error( jqXHR, el ) {
+ var errmsg;
+ if( jqXHR.responseText == "" ) {
+ errmsg = "perhaps the server went down?"
+ } else {
+ var errobj;
+ try {
+ errobj = jQuery.parseJSON( jqXHR.responseText );
+ errmsg = errobj.error;
+ } catch ( parse_err ) {
+ errmsg = "something went wrong on the server."
+ }
+ }
+ var msghtml = $('').attr('class', 'error').text( "An error occurred: " + errmsg );
+ $(el).empty().append( msghtml ).show();
+}
+
+// Event to enable the upload button when a file has been selected
+function file_selected( e ) {
+ if( e.files.length == 1 ) {
+ $('#upload_button').button('enable');
+ $('#new_file_name_container').html( '' + e.files[0].name + '' );
+ } else {
+ $('#upload_button').button('disable');
+ $('#new_file_name_container').html( '(Use \'pick file\' to select a tradition file to upload.)' );
+ }
+}
+
+// Implement our own AJAX method that uses the features of XMLHttpRequest2
+// but try to let it have a similar interface to jquery.post
+// The data var needs to be a FormData() object.
+// The callback will be given a single argument, which is the response data
+// of the given type.
+
+function post_xhr2( url, data, cb, type ) {
+ if( !type ) {
+ type = 'json';
+ }
+ var xhr = new XMLHttpRequest();
+ // Set the expected response type
+ if( type === 'data' ) {
+ xhr.responseType = 'blob';
+ } else if( type === 'xml' ) {
+ xhr.responseType = 'document';
+ }
+ // Post the form
+ // Gin up an AJAX settings object
+ $.ajaxSetup({ url: url, type: 'POST' });
+ xhr.open( 'POST', url, true );
+ // Handle the results
+ xhr.onload = function( e ) {
+ // Get the response and parse it
+ // Call the callback with the response, whatever it was
+ var xhrs = e.target;
+ if( xhrs.status > 199 && xhrs.status < 300 ) { // Success
+ var resp;
+ if( type === 'json' ) {
+ resp = $.parseJSON( xhrs.responseText );
+ } else if ( type === 'xml' ) {
+ resp = xhrs.responseXML;
+ } else if ( type === 'text' ) {
+ resp = xhrs.responseText;
+ } else {
+ resp = xhrs.response;
+ }
+ cb( resp );
+ } else {
+ // Trigger the ajaxError...
+ _trigger_ajaxerror( e );
+ }
+ };
+ xhr.onerror = _trigger_ajaxerror;
+ xhr.onabort = _trigger_ajaxerror;
+ xhr.send( data );
+}
+
+function _trigger_ajaxerror( e ) {
+ var xhr = e.target;
+ var thrown = xhr.statusText || 'Request error';
+ jQuery.event.trigger( 'ajaxError', [ xhr, $.ajaxSettings, thrown ]);
+}
+
+function upload_new () {
+ // Serialize the upload form, get the file and attach it to the request,
+ // POST the lot and handle the response.
+ var newfile = $('#new_file').get(0).files[0];
+ var reader = new FileReader();
+ reader.onload = function( evt ) {
+ var data = new FormData();
+ $.each( $('#new_tradition').serializeArray(), function( i, o ) {
+ data.append( o.name, o.value );
+ });
+ data.append( 'file', newfile );
+ var upload_url = _get_url([ 'newtradition' ]);
+ post_xhr2( upload_url, data, function( ret ) {
+ if( ret.id ) {
+ $('#upload-collation-dialog').dialog('close');
+ refreshDirectory();
+ loadTradition( ret.id, ret.name, 1 );
+ } else if( ret.error ) {
+ $('#upload_status').empty().append(
+ $('').attr('class', 'error').append( ret.error ) );
+ }
+ }, 'json' );
+ };
+ reader.onerror = function( evt ) {
+ var err_resp = 'File read error';
+ if( e.name == 'NotFoundError' ) {
+ err_resp = 'File not found';
+ } else if ( e.name == 'NotReadableError' ) {
+ err_resp == 'File unreadable - is it yours?';
+ } else if ( e.name == 'EncodingError' ) {
+ err_resp == 'File cannot be encoded - is it too long?';
+ } else if ( e.name == 'SecurityError' ) {
+ err_resp == 'File read security error';
+ }
+ // Fake a jqXHR object that we can pass to our generic error handler.
+ var jqxhr = { responseText: '{error:"' + err_resp + '"}' };
+ display_error( jqxhr, $('#upload_status') );
+ $('#upload_button').button('disable');
+ }
- // Then populate the various elements with the right text name/ID.
- // Stemma and variant graph titles
- $('.texttitle').empty();
- $('.texttitle').append( textname );
- // Stexaminer submit action
- $('#run_stexaminer').attr( 'action', basepath + "/stexaminer/" + textid );
- // Relationship mapper submit action
- $('#run_relater').attr( 'action', basepath + "/relation/" + textid );
+ reader.readAsBinaryString( newfile );
}
+
+// Utility function to neatly construct an application URL
+function _get_url( els ) {
+ return basepath + els.join('/');
+}
+
+
+$(document).ready( function() {
+ // See if we have the browser functionality we need
+ // TODO Also think of a test for SVG readiness
+ if( !!window.FileReader && !!window.File ) {
+ $('#compatibility_check').empty();
+ }
+
+ // call out to load the directory div
+ $('#textinfo_container').hide();
+ $('#textinfo_waitbox').hide();
+ refreshDirectory();
+
+ // Set up the textinfo edit dialog
+ $('#textinfo-edit-dialog').dialog({
+ autoOpen: false,
+ height: 200,
+ width: 300,
+ modal: true,
+ buttons: {
+ Save: function (evt) {
+ $("#edit_textinfo_status").empty();
+ $(evt.target).button("disable");
+ var requrl = _get_url([ "textinfo", selectedTextID ]);
+ var reqparam = $('#edit_textinfo').serialize();
+ $.post( requrl, reqparam, function (data) {
+ // Reload the selected text fields
+ selectedTextInfo = data;
+ load_textinfo();
+ // Reenable the button and close the form
+ $(evt.target).button("enable");
+ $('#textinfo-edit-dialog').dialog('close');
+ }, 'json' );
+ },
+ Cancel: function() {
+ $('#textinfo-edit-dialog').dialog('close');
+ }
+ },
+ open: function() {
+ $("#edit_textinfo_status").empty();
+ // Populate the form fields with the current values
+ // edit_(name, language, public, owner)
+ $.each([ 'name', 'language', 'owner' ], function( idx, k ) {
+ var fname = '#edit_' + k;
+ // Special case: language Default is basically language null
+ if( k == 'language' && selectedTextInfo[k] == 'Default' ) {
+ $(fname).val( "" );
+ } else {
+ $(fname).val( selectedTextInfo[k] );
+ }
+ });
+ if( selectedTextInfo['public'] == true ) {
+ $('#edit_public').attr('checked','true');
+ } else {
+ $('#edit_public').removeAttr('checked');
+ }
+ },
+ }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
+ $(event.target).parent().find('.ui-button').button("enable");
+ if( ajaxSettings.url.indexOf( 'textinfo' ) > -1
+ && ajaxSettings.type == 'POST' ) {
+ display_error( jqXHR, $("#edit_textinfo_status") );
+ }
+ });
+
+
+ // Set up the stemma editor dialog
+ $('#stemma-edit-dialog').dialog({
+ autoOpen: false,
+ height: 700,
+ width: 600,
+ modal: true,
+ buttons: {
+ Save: function (evt) {
+ $("#edit_stemma_status").empty();
+ $(evt.target).button("disable");
+ var stemmaseq = $('#stemmaseq').val();
+ var requrl = _get_url([ "stemma", selectedTextID, stemmaseq ]);
+ var reqparam = { 'dot': $('#dot_field').val() };
+ // TODO We need to stash the literal SVG string in stemmata
+ // somehow. Implement accept header on server side to decide
+ // whether to send application/json or application/xml?
+ $.post( requrl, reqparam, function (data) {
+ // We received a stemma SVG string in return.
+ // Update the current stemma sequence number
+ selectedStemmaID = data.stemmaid;
+ delete data.stemmaid;
+ // Stash the answer in the appropriate spot in our stemma array
+ stemmata[selectedStemmaID] = data;
+ // Display the new stemma
+ load_stemma( selectedStemmaID );
+ // Show the edit button, in case this was the first new stemma
+ $('#open_stemma_edit').show();
+ // Reenable the button and close the form
+ $(evt.target).button("enable");
+ $('#stemma-edit-dialog').dialog('close');
+ }, 'json' );
+ },
+ Cancel: function() {
+ $('#stemma-edit-dialog').dialog('close');
+ }
+ },
+ open: function(evt) {
+ $("#edit_stemma_status").empty();
+ var stemmaseq = $('#stemmaseq').val();
+ if( stemmaseq == 'n' ) {
+ // If we are creating a new stemma, populate the textarea with a
+ // bare digraph.
+ $(evt.target).dialog('option', 'title', 'Add a new stemma')
+ $('#dot_field').val( "digraph stemma {\n\n}" );
+ } else {
+ // If we are editing a stemma, grab its stemmadot and populate the
+ // textarea with that.
+ $(evt.target).dialog('option', 'title', 'Edit selected stemma')
+ $('#dot_field').val( 'Loading, please wait...' );
+ var doturl = _get_url([ "stemmadot", selectedTextID, stemmaseq ]);
+ $.getJSON( doturl, function (data) {
+ // Re-insert the line breaks
+ var dotstring = data.dot.replace(/\|n/gm, "\n");
+ $('#dot_field').val( dotstring );
+ });
+ }
+ },
+ }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
+ $(event.target).parent().find('.ui-button').button("enable");
+ if( ajaxSettings.url.indexOf( 'stemma' ) > -1
+ && ajaxSettings.type == 'POST' ) {
+ display_error( jqXHR, $("#edit_stemma_status") );
+ }
+ });
+
+ $('#upload-collation-dialog').dialog({
+ autoOpen: false,
+ height: 360,
+ width: 480,
+ modal: true,
+ buttons: {
+ upload: {
+ text: 'Upload',
+ id: 'upload_button',
+ click: function() {
+ $('#upload_status').empty();
+ $('#upload_button').button("disable");
+ upload_new();
+ }
+ },
+ pick_file: {
+ text: 'Pick File',
+ id: 'pick_file_button',
+ click: function() {
+ $('#new_file').click();
+ }
+ },
+ Cancel: function() {
+ $('#upload-collation-dialog').dialog('close');
+ }
+ },
+ open: function() {
+ // Set the upload button to its correct state based on
+ // whether a file is loaded
+ file_selected( $('#new_file').get(0) );
+ $('#upload_status').empty();
+ }
+ }).ajaxError( function(event, jqXHR, ajaxSettings, thrownError) {
+ // Reset button state
+ file_selected( $('#new_file').get(0) );
+ // Display error message if applicable
+ if( ajaxSettings.url.indexOf( 'newtradition' ) > -1
+ && ajaxSettings.type == 'POST' ) {
+ display_error( jqXHR, $("#upload_status") );
+ }
+ });;
+
+ $('#stemma_graph').mousedown( function(evt) {
+ evt.stopPropagation();
+ $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
+ $('body').mousemove( function(evt) {
+ mouse_scale = 1; // for now, was: mouse_scale = svg_root_element.getScreenCTM().a;
+ dx = (evt.clientX - $('#stemma_graph').data( 'mousedown_xy' )[0]) / mouse_scale;
+ dy = (evt.clientY - $('#stemma_graph').data( 'mousedown_xy' )[1]) / mouse_scale;
+ $('#stemma_graph').data( 'mousedown_xy', [evt.clientX, evt.clientY] );
+ var svg_root = $('#stemma_graph svg').svg().svg('get').root();
+ var g = $('g.graph', svg_root).get(0);
+ current_translate = g.getAttribute( 'transform' ).split(/translate\(/)[1].split(')',1)[0].split(' ');
+ new_transform = g.getAttribute( 'transform' ).replace( /translate\([^\)]*\)/, 'translate(' + (parseFloat(current_translate[0]) + dx) + ' ' + (parseFloat(current_translate[1]) + dy) + ')' );
+ g.setAttribute( 'transform', new_transform );
+ evt.returnValue = false;
+ evt.preventDefault();
+ return false;
+ });
+ $('body').mouseup( function(evt) {
+ $('body').unbind('mousemove');
+ $('body').unbind('mouseup');
+ });
+ });
+
+ $('#stemma_graph').mousewheel(function (event, delta) {
+ event.returnValue = false;
+ event.preventDefault();
+ if (!delta || delta == null || delta == 0) delta = event.originalEvent.wheelDelta;
+ if (!delta || delta == null || delta == 0) delta = -1 * event.originalEvent.detail;
+ if( delta < -9 ) { delta = -9 };
+ var z = 1 + delta/10;
+ z = delta > 0 ? 1 : -1;
+ var svg_root = $('#stemma_graph svg').svg().svg('get').root();
+ var g = $('g.graph', svg_root).get(0);
+ if (g && ((z<1 && (g.getScreenCTM().a * start_element_height) > 4.0) || (z>=1 && (g.getScreenCTM().a * start_element_height) < 1000))) {
+ var scaleLevel = z/10;
+ current_scale = parseFloat( g.getAttribute( 'transform' ).split(/scale\(/)[1].split(')',1)[0].split(' ')[0] );
+ new_transform = g.getAttribute( 'transform' ).replace( /scale\([^\)]*\)/, 'scale(' + (current_scale + scaleLevel) + ')' );
+ g.setAttribute( 'transform', new_transform );
+ }
+ });
+
+});