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/** |
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* @licence GNU GPL v2+ |
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* @author Gabriel Birke <[email protected]> |
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*/ |
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/** |
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* Load and render current donation comments |
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* |
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* @constructor |
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*/ |
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var DonationComments = function ( commentContainer, paginationContainer ) { |
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this.commentContainer = commentContainer; |
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this.paginationContainer = paginationContainer; |
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}; |
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var DOM_SELECTORS = { |
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data: { |
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NO_COMMENTS: 'no-comments' |
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} |
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}; |
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$.extend( DonationComments.prototype, { |
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init: function () { |
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this.paginationContainer.find( '.first' ).bind( 'click', $.proxy( this.goToFirstPage, this ) ); |
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this.paginationContainer.find( '.last' ).bind( 'click', $.proxy( this.goToLastPage, this ) ); |
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this.paginationContainer.find( '.prev' ).bind( 'click', $.proxy( this.goToPrevPage, this ) ); |
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this.paginationContainer.find( '.next' ).bind( 'click', $.proxy( this.goToNextPage, this ) ); |
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this.currentPage = 0; |
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this.itemsPerPage = 10; |
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this.numPages = 1; |
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this.update(); |
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}, |
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update: function () { |
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var self = this; |
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$.ajax( '../list-comments.json?n=100&anon=1', { |
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dataType: 'json', |
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success: function ( data ) { |
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self.numPages = Math.ceil( data.length / self.itemsPerPage ); |
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self.commentContainer.html( self.renderHtml( data ) ); |
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self.updatePagination(); |
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} |
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} ); |
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}, |
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renderHtml: function ( data ) { |
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var html = $('<div></div>'), |
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currentPage, pageContainer, |
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dataPages = this.paginateData( data ), |
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self = this; |
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if ( !data.length ) { |
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return '<div class="noDonationComments">' + this.commentContainer.data( DOM_SELECTORS.data.NO_COMMENTS) + '</div>'; |
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} |
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for ( currentPage = 0; currentPage < this.numPages; currentPage++ ) { |
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pageContainer = $( '<div class="wrap-items comment-page comment-page-' + currentPage + '"></div>' ); |
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$.each( dataPages[currentPage], function( index, item ) { |
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pageContainer.append( |
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'<article class="comment-item">' + |
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'<span class="field-amount-name">' + item.betrag + ' € von ' + item.spender + '</span>' + |
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'<span class="date-time">' + self._renderDate( item.datum ) + '</span>' + |
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'<p>' + item.kommentar + '</p></article>' |
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); |
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} ); |
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html.append( pageContainer ); |
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} |
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return html; |
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}, |
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paginateData: function ( data ) { |
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if ( !data.length ) { |
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return []; |
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} |
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var pages = [], |
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i = 0, |
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n = data.length; |
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while (i < n) { |
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pages.push( data.slice( i, i += this.itemsPerPage ) ); |
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} |
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return pages; |
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}, |
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goToFirstPage: function () { |
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this.currentPage = 0; |
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this.updatePagination(); |
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}, |
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goToLastPage: function () { |
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this.currentPage = this.numPages - 1; |
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this.updatePagination(); |
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}, |
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goToPrevPage: function () { |
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if ( this.currentPage > 0 ) { |
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this.currentPage--; |
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} |
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this.updatePagination(); |
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}, |
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goToNextPage: function () { |
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if ( this.currentPage < this.numPages - 1 ) { |
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this.currentPage++; |
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} |
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this.updatePagination(); |
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}, |
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updatePagination: function () { |
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// Show current page |
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$( '.comment-page', this.commentContainer ).hide(); |
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$( '.comment-page-' + this.currentPage ).show(); |
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// Show page numbers |
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this.paginationContainer.find( '.current-page' ).text( this.currentPage + 1 ); |
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this.paginationContainer.find( '.num-pages' ).text( this.numPages ); |
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// set visibility of back and forward arrows depending on this.numPages and this.currentPage |
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this.paginationContainer.find( '> span' ).hide(); |
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if ( this.numPages > 1 ) { |
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this.paginationContainer.find( '.pages' ).show(); |
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} |
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if ( this.currentPage > 0 ) { |
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this.paginationContainer.find( '.prev' ).show(); |
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this.paginationContainer.find( '.first' ).show(); |
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} |
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if ( this.currentPage < this.numPages - 1 ) { |
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this.paginationContainer.find( '.next' ).show(); |
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this.paginationContainer.find( '.last' ).show(); |
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} |
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}, |
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_formatTwoDigitNumber: function ( n ) { |
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return n < 10 ? '0' + n : n; |
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}, |
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_renderDate: function ( dateString ) { |
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var donationDate = new Date( dateString ), |
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donationDateParts = [ |
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this._formatTwoDigitNumber( donationDate.getDate() ), |
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'.', |
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this._formatTwoDigitNumber( donationDate.getMonth() + 1 ), |
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'.', |
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donationDate.getFullYear(), |
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' um ', |
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donationDate.getHours(), |
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':', |
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this._formatTwoDigitNumber( donationDate.getMinutes() ), |
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' Uhr' |
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]; |
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return donationDateParts.join( '' ); |
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} |
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} ); |
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$( function () { |
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var comments = new DonationComments( |
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$( '.comment-commentContainer' ), |
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$( '.comment-paginationContainer') |
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); |
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comments.init(); |
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} ); |
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wmde /
FundraisingFrontend
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