# See the Pagy documentation: https://ddnexus.github.io/pagy/docs/extras/bootstrap # frozen_string_literal: true require_relative 'js_tools' class Pagy # :nodoc: # Frontend modules are specially optimized for performance. # The resulting code may not look very elegant, but produces the best benchmarks module BootstrapExtra # Pagination for bootstrap: it returns the html with the series of links to the pages def pagy_bootstrap_nav(pagy, id: nil, classes: 'pagination', aria_label: nil, **vars) id = %( id="#{id}") if id a = pagy_anchor(pagy) html = %(<nav#{id} class="pagy-bootstrap nav" #{nav_aria_label(pagy, aria_label:)}><ul class="#{classes}">#{ bootstrap_prev_html(pagy, a)}) pagy.series(**vars).each do |item| # series example: [1, :gap, 7, 8, "9", 10, 11, :gap, 36] html << case item when Integer %(<li class="page-item">#{a.(item, classes: 'page-link')}</li>) when String %(<li class="page-item active"><a role="link" class="page-link" aria-current="page" aria-disabled="true">#{ pagy.label_for(item)}</a></li>) when :gap %(<li class="page-item gap disabled"><a role="link" class="page-link" aria-disabled="true">#{ pagy_t('pagy.gap')}</a></li>) else raise InternalError, "expected item types in series to be Integer, String or :gap; got #{item.inspect}" end end html << %(#{bootstrap_next_html(pagy, a)}</ul></nav>) end # Javascript pagination for bootstrap: it returns a nav with a data-pagy attribute used by the pagy.js file def pagy_bootstrap_nav_js(pagy, id: nil, classes: 'pagination', aria_label: nil, **vars) sequels = pagy.sequels(**vars) id = %( id="#{id}") if id a = pagy_anchor(pagy) tokens = { 'before' => %(<ul class="#{classes}">#{bootstrap_prev_html(pagy, a)}), 'a' => %(<li class="page-item">#{a.(PAGE_TOKEN, LABEL_TOKEN, classes: 'page-link')}</li>), 'current' => %(<li class="page-item active"><a role="link" class="page-link" ) + %(aria-current="page" aria-disabled="true">#{LABEL_TOKEN}</a></li>), 'gap' => %(<li class="page-item gap disabled"><a role="link" class="page-link" aria-disabled="true">#{ pagy_t('pagy.gap')}</a></li>), 'after' => %(#{bootstrap_next_html pagy, a}</ul>) } %(<nav#{id} class="#{'pagy-rjs ' if sequels.size > 1}pagy-bootstrap nav-js" #{ nav_aria_label(pagy, aria_label:)} #{ pagy_data(pagy, :nav, tokens, sequels, pagy.label_sequels(sequels)) }></nav>) end # Javascript combo pagination for bootstrap: it returns a nav with a data-pagy attribute used by the pagy.js file def pagy_bootstrap_combo_nav_js(pagy, id: nil, classes: 'pagination', aria_label: nil) id = %( id="#{id}") if id a = pagy_anchor(pagy) pages = pagy.pages page_input = %(<input name="page" type="number" min="1" max="#{pages}" value="#{pagy.page}" aria-current="page" ) << %(style="text-align: center; width: #{pages.to_s.length + 1}rem; padding: 0; ) << %(border: none; display: inline-block;" class="page-link active">#{JSTools::A_TAG}) %(<nav#{id} class="pagy-bootstrap combo-nav-js" #{ nav_aria_label(pagy, aria_label:)} #{ pagy_data(pagy, :combo, pagy_url_for(pagy, PAGE_TOKEN)) }><ul class="#{classes}">#{ bootstrap_prev_html(pagy, a) }<li class="page-item pagy-bootstrap"><label class="page-link">#{ pagy_t('pagy.combo_nav_js', page_input:, pages:) }</label></li>#{ bootstrap_next_html(pagy, a) }</ul></nav>) end private def bootstrap_prev_html(pagy, a) if (p_prev = pagy.prev) %(<li class="page-item prev">#{ a.(p_prev, pagy_t('pagy.prev'), classes: 'page-link', aria_label: pagy_t('pagy.aria_label.prev'))}</li>) else %(<li class="page-item prev disabled"><a role="link" class="page-link" aria-disabled="true" aria-label="#{ pagy_t('pagy.aria_label.prev')}">#{pagy_t('pagy.prev')}</a></li>) end end def bootstrap_next_html(pagy, a) if (p_next = pagy.next) %(<li class="page-item next">#{ a.(p_next, pagy_t('pagy.next'), classes: 'page-link', aria_label: pagy_t('pagy.aria_label.next'))}</li>) else %(<li class="page-item next disabled"><a role="link" class="page-link" aria-disabled="true" aria-label="#{ pagy_t('pagy.aria_label.next')}">#{pagy_t('pagy.next')}</a></li>) end end end Frontend.prepend BootstrapExtra end