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(function( $ ) { |
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'use strict'; |
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|
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// Start things up |
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m_chart_admin.init = function() { |
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this.post_id = $( document.getElementById( 'post_ID' ) ).attr( 'value' ); |
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this.nonce = $( 'input[name="m-chart[nonce]"]' ).attr( 'value' ); |
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|
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this.create_spreadsheet(); |
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|
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// Store the setting inputs and title input for use later |
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this.$setting_inputs = $( document.getElementById( 'm-chart' ) ).find( '.settings input, .settings select' ); |
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this.$title_input = $( document.getElementById( 'titlediv' ) ).find( 'input' ); |
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|
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// Only show fields/inputs that are appropriate for the current chart type |
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var $chart_type_select = $( document.getElementById( 'm-chart-type' ) ); |
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$chart_type_select.on( 'load, change', this.handle_chart_type ); |
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$chart_type_select.trigger( 'change' ); |
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|
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// Set the form encoding type to multipart/form-data so that the CSV import will work |
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var $form = $( 'form#post' ); |
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$form.attr( 'enctype', 'multipart/form-data' ); |
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|
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// Watch form submissions and stop them if necessary or update data value |
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$form.on( 'submit', function( event ) { |
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if ( false === m_chart_admin.allow_form_submission ) { |
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event.preventDefault(); |
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} else { |
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$( document.getElementById( 'm-chart-spreadsheet' ) ).find( '.data' ).val( |
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JSON.stringify( m_chart_admin.$spreadsheet.getData() ) |
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); |
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} |
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}) |
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|
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// Store these for later |
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this.$form_buttons = $( '#save-post, #wp-preview, #post-preview, #publish' ); |
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|
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// Watch for a new chart to be built |
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if ( 'default' === this.performance ) { |
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$( '.m-chart' ).on( 'render_done', this.generate_image_from_chart ); |
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} |
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|
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// Watch for clicks on the shortcode input |
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$( document.getElementById( 'm-chart-shortcode' ) ).on( 'click', function () { |
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$( this ).select(); |
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}); |
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|
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// Watch for clicks on the image input |
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$( document.getElementById( 'm-chart-image' ) ).on( 'click', function () { |
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$( this ).select(); |
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}); |
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|
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// Watch for clicks on the CSV tools |
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this.handle_csv_import(); |
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this.handle_csv_export(); |
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|
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// Do instant preview unless it's been turned off |
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if ( 'no-preview' !== this.performance ) { |
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this.watch_for_chart_changes(); |
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} |
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}; |
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|
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// Instantiate the spreedsheet |
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m_chart_admin.create_spreadsheet = function() { |
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var $spreadsheet_div = document.getElementById( 'hands-on-table-sheet-' + this.post_id ); |
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|
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this.$spreadsheet = new Handsontable( $spreadsheet_div, { |
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data: hands_on_table_data, |
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colHeaders: true, |
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rowHeaders: true, |
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height: 350, |
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minRows: 17, |
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minCols: 37, |
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minSpareRows: 1, |
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minSpareCols: 1, |
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contextMenu: true, |
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afterChange: function() { |
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// If a value changes update the chart |
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m_chart_admin.refresh_chart(); |
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} |
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}); |
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} |
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|
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// Handle chart type input changes so the settings UI only reflects appropriate options |
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m_chart_admin.handle_chart_type = function( event ) { |
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var chart_type = $( this ).attr( 'value' ); |
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var $chart_meta_box = $( document.getElementById( 'm-chart' ) ); |
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|
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// Show everything before hiding the options we don't want |
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$chart_meta_box.find( '.row' ).removeClass( 'hide' ); |
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|
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if ( |
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'area' === chart_type |
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|| 'column' === chart_type |
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|| 'bar' === chart_type |
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) { |
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$chart_meta_box.find( '.row.y-min' ).addClass( 'hide' ); |
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} |
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|
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if ( 'pie' === chart_type ) { |
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$chart_meta_box.find( '.row.vertical-axis, .row.horizontal-axis, .row.y-min' ).addClass( 'hide' ); |
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} |
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}; |
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|
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// Handle CSV import functionality |
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m_chart_admin.handle_csv_import = function() { |
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var $csv_meta_box = $( document.getElementById( 'm-chart-csv' ) ); |
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var $select = $csv_meta_box.find( '.import .select.button' ); |
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var $import = $csv_meta_box.find( '.import .import.button' ); |
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var $import_form = $( document.getElementById( 'm-chart-csv-import-form' ) ); |
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var $file_input = $import_form.find( 'input[type=file]' ); |
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var $file_info = $csv_meta_box.find( '.file-info' ); |
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var $file_error = $csv_meta_box.find( '.file.error' ); |
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var $file_import = $csv_meta_box.find( '.import.in-progress' ); |
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var $import_error = $csv_meta_box.find( '.import.error' ); |
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var $cancel = $csv_meta_box.find( '.dashicons-dismiss' ); |
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|
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// Watch for clicks on the select button |
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$select.on( 'click', function( event ) { |
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event.preventDefault(); |
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$file_error.addClass( 'hide' ); |
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$import_error.addClass( 'hide' ); |
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$file_input.trigger( 'click' ); |
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}); |
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|
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// Watch for changes to the file input |
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$file_input.on( 'change', function( event ) { |
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var file_name = $( this ).attr( 'value' ).replace( /C:\\fakepath\\/i, '' ); |
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|
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if ( -1 === file_name.search( /.+(\.csv)$/ ) ) { |
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$file_error.removeClass( 'hide' ); |
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return; |
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} |
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|
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$file_info.find( '.file-name' ).text( file_name ); |
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|
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$select.addClass( 'hide' ); |
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$import.removeClass( 'hide' ); |
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$file_info.removeClass( 'hide' ); |
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}); |
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|
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// Watch for clicks on the cancel button |
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$cancel.on( 'click', function( event ) { |
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event.preventDefault(); |
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$file_info.addClass( 'hide' ); |
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$file_input.attr( 'value', '' ); |
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$select.removeClass( 'hide' ); |
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$import.addClass( 'hide' ); |
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}); |
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|
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// Watch for clicks on import button |
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$import.on( 'click', function( event ) { |
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event.preventDefault(); |
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|
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$file_info.addClass( 'hide' ); |
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$import.addClass( 'hide' ); |
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$import_error.addClass( 'hide' ); |
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$file_import.removeClass( 'hide' ); |
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|
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$import_form.trigger( 'submit' ); |
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}); |
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|
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// Watch for CSV import form submission |
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$import_form.on( 'submit', function( event ) { |
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event.preventDefault(); |
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|
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var $form_data = new FormData( this ); |
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|
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$form_data.append( 'post_id', m_chart_admin.post_id ); |
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$form_data.append( 'nonce', m_chart_admin.nonce ); |
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|
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var request = $.ajax({ |
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url: 'admin-ajax.php?action=m_chart_import_csv', |
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type: 'POST', |
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data: $form_data, |
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cache: false, |
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dataType: 'json', |
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// Don't process the files |
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processData: false, |
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// Set content type to false as jQuery will tell the server its a query string request |
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contentType: false |
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}); |
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|
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request.done( function( response ) { |
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if ( false == response.success ) { |
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console.log(response) |
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$import_error.text( response.data ); |
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$import_error.removeClass( 'hide' ); |
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|
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$file_input.attr( 'value', '' ); |
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$select.removeClass( 'hide' ); |
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$file_import.addClass( 'hide' ); |
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|
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return false; |
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} |
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|
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// Update the spreadsheet with the new data |
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m_chart_admin.$spreadsheet.loadData( response.data ); |
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|
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$file_input.attr( 'value', '' ); |
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$select.removeClass( 'hide' ); |
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$file_import.addClass( 'hide' ); |
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}); |
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}); |
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}; |
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|
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// Handle CSV export functionality |
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m_chart_admin.handle_csv_export = function() { |
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$( document.getElementById( 'm-chart-csv' ) ).find( '.export a' ).on( 'click', function( event ) { |
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event.preventDefault(); |
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|
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var $form = $( document.getElementById( 'm-chart-csv-export-form' ) ); |
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|
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$( document.getElementById( 'm-chart-csv-post-id' ) ).val( m_chart_admin.post_id ); |
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$( document.getElementById( 'm-chart-csv-data' ) ).val( JSON.stringify( m_chart_admin.$spreadsheet.getData() ) ); |
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$( document.getElementById( 'm-chart-csv-title' ) ).val( m_chart_admin.$title_input.attr( 'value' ) ); |
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|
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$form.trigger( 'submit' ); |
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}); |
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}; |
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|
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// Generate a PNG image out of a rendered chart |
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m_chart_admin.generate_image_from_chart = function( event ) { |
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var svg = event.chart.getSVG(); |
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var width = svg.match(/^<svg[^>]*width\s*=\s*\"?(\d+)\"?[^>]*>/)[1]; |
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var height = svg.match(/^<svg[^>]*height\s*=\s*\"?(\d+)\"?[^>]*>/)[1]; |
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|
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// Double the width/height values in SVG |
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svg = svg.replace( 'width="' + width + '"', 'width="' + ( width * 2 ) + '"' ); |
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svg = svg.replace( 'height="' + height + '"', 'height="' + ( height * 2 ) + '"' ); |
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|
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// Scale the SVG object |
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svg = svg.replace( '<svg ', '<svg transform="scale(2, 2)" ' ); |
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|
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// Create a Canvas object out of the SVG |
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var $canvas = $( '#m-chart-canvas-render-' + event.post_id ); |
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m_chart_admin.canvas = $canvas.get( 0 ); |
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|
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canvg( m_chart_admin.canvas, svg ); |
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|
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// Create Canvas context so we can play with it before saving |
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m_chart_admin.canvas_context = m_chart_admin.canvas.getContext( '2d' ); |
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|
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$( '.m-chart' ).trigger({ |
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type: 'canvas_done' |
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}); |
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|
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var img = m_chart_admin.canvas.toDataURL( 'image/png' ); |
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|
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// Save the image string to the text area so we can save it on update/publish |
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$( document.getElementById( 'm-chart-img' ) ).attr( 'value', img ); |
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|
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// Allow form submission now that we've got a valid img value set |
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m_chart_admin.form_submission( true ); |
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}; |
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|
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// Watch for changes to the chart settings or title |
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m_chart_admin.watch_for_chart_changes = function() { |
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this.$setting_inputs.on( 'change', function() { |
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m_chart_admin.refresh_chart(); |
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}); |
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|
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this.$title_input.on( 'change', function() { |
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m_chart_admin.refresh_chart(); |
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}); |
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}; |
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|
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// Refresh chart |
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m_chart_admin.refresh_chart = function() { |
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m_chart_admin.refresh_counter++; |
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|
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// Handsontable calls afterChange on the first render for some silly reason |
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if ( 1 === m_chart_admin.refresh_counter ) { |
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return false; |
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} |
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|
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// Stop any existing requests so we don't just pile them up |
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if ( this.request ) { |
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this.request.abort(); |
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} |
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|
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// Stop form submission while we wait for the chart to refresh and a new image to generate |
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m_chart_admin.form_submission( false ); |
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|
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// Build an object with all fo the post_meta values |
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var $post_meta = {}; |
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|
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this.$setting_inputs.each( function() { |
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// Don't record unselected/unchecked radio/checkboxes |
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if ( |
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'radio' !== $( this ).attr( 'type' ) |
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&& 'checkbox' !== $( this ).attr( 'type' ) |
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|| true === $( this ).is( ':checked' ) |
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) { |
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$post_meta[ $( this ).attr( 'name' ).replace( /^m-chart\[|\]$/g , '' ) ] = $( this ).attr( 'value' ); |
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} |
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}); |
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|
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$post_meta.data = JSON.stringify( m_chart_admin.$spreadsheet.getData() ); |
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|
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// Request a new chart_args object so we can rerender the chart with the changes |
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this.request = $.ajax({ |
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url: 'admin-ajax.php?action=m_chart_get_chart_args', |
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type: 'POST', |
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data: { |
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post_id: m_chart_admin.post_id, |
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nonce: m_chart_admin.nonce, |
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library: 'highcharts', |
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title: this.$title_input.attr( 'value' ), |
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post_meta: $post_meta |
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}, |
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cache: false, |
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dataType: 'json' |
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}); |
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|
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this.request.done( function( response ) { |
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console.log( response ); |
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if ( true !== response.success ) { |
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return false; |
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} |
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|
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// Update active chart args and then rerender the chart |
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window[ 'm_chart_highcharts_' + m_chart_admin.post_id ].chart_args = response.data; |
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window[ 'm_chart_highcharts_' + m_chart_admin.post_id ].render_chart(); |
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}); |
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}; |
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|
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m_chart_admin.form_submission = function( enable ) { |
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m_chart_admin.allow_form_submission = enable; |
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|
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if ( false === enable ) { |
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m_chart_admin.$form_buttons.addClass( 'disabled' ); |
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} else { |
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m_chart_admin.$form_buttons.removeClass( 'disabled' ); |
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} |
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}; |
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|
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$( function() { |
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m_chart_admin.init(); |
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} ); |
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})( jQuery ); |
