ext = null ) {
		$hide_html  = '';
		$hide_html .= '<span class="otgs-notice-hide notice-hide"><span class="screen-reader-text">';
		if ( $localized_text ) {
			$hide_html .= esc_html( $localized_text );
		} else {
			$hide_html .= esc_html__( 'Hide this notice.', 'sitepress' );
		}
		$hide_html .= '</span></span>';

		return $hide_html;
	}

	/**
	 * @param null|string $localized_text
	 *
	 * @return string
	 */
	private function get_dismiss_html( $localized_text = null ) {
		$dismiss_html  = '';
		$dismiss_html .= '<span class="otgs-notice-dismiss notice-dismiss" role="button" tabindex="0">';
		$dismiss_html .= '<span class="screen-reader-text"><input class="otgs-notice-dismiss-check" type="checkbox" value="1" />';
		if ( $localized_text ) {
			$dismiss_html .= esc_html( $localized_text );
		} else {
			$dismiss_html .= esc_html__( 'Dismiss this notice.', 'sitepress' );
		}
		$dismiss_html .= '</span></span>';

		return $dismiss_html;
	}

	/**
	 * @param string|null $localized_text
	 *
	 * @return string
	 */
	private function get_collapse_html( $localized_text = null ) {
		$hide_html = '<span class="otgs-notice-collapse-hide"><span class="screen-reader-text">';
		if ( $localized_text ) {
			$hide_html .= esc_html( $localized_text );
		} else {
			$hide_html .= esc_html__( 'Hide this notice.', 'sitepress' );
		}
		$hide_html .= '</span></span>';

		return $hide_html;
	}

	/**
	 * @param WPML_Notice $notice
	 * @param string|null $localized_text
	 *
	 * @return string
	 */
	private function get_collapsed_html( WPML_Notice $notice, $localized_text = null ) {
		$content = '
			<div class="otgs-notice-collapsed-text">
				<p>%s
					<span class="otgs-notice-collapse-show notice-collapse"><span class="screen-reader-text">
					%s
					</span></span>
				</p>
			</div>
			<div class="otgs-notice-collapse-text">
				%s
			</div>
		';

		$content = sprintf(
			$content,
			$notice->get_collapsed_text(),
			$localized_text ? esc_html( $localized_text ) : esc_html__( 'Show this notice.', 'sitepress' ),
			$notice->get_text()
		);

		return $content;
	}

	/**
	 * @param WPML_Notice_Action $action
	 *
	 * @return string
	 */
	private function get_action_html( $action ) {
		$action_html = '';
		if ( $action->can_hide() ) {
			$action_html          .= $this->get_hide_html( $action->get_text() );
			$this->hide_html_added = true;
		} elseif ( $action->can_dismiss() ) {
			$action_html             .= $this->get_dismiss_html( $action->get_text() );
			$this->dismiss_html_added = true;
		} else {
			if ( $action->get_url() ) {
				$action_html .= $this->get_action_anchor( $action );
			} else {
				$action_html .= $action->get_text();
			}
		}

		return $action_html;
	}

	/**
	 * @param WPML_Notice_Action $action
	 *
	 * @return string
	 */
	private function get_action_anchor( WPML_Notice_Action $action ) {
		$anchor_attributes = array();

		$action_url = '<a';

		$anchor_attributes['href'] = esc_url_raw( $action->get_url() );
		if ( $action->get_link_target() ) {
			$anchor_attributes['target'] = $action->get_link_target();
		}

		$action_url_classes = array( 'notice-action' );
		if ( $action->must_display_as_button() ) {
			$button_style = 'button-secondary';
			if ( is_string( $action->must_display_as_button() ) ) {
				$button_style = $action->must_display_as_button();
			}
			$action_url_classes[] = esc_attr( $button_style );
			$action_url_classes[] = 'notice-action-' . esc_attr( $button_style );
		} else {
			$action_url_classes[] = 'notice-action-link';
		}
		$anchor_attributes['class'] = implode( ' ', $action_url_classes );

		if ( $action->get_group_to_dismiss() ) {
			$anchor_attributes['data-dismiss-group'] = esc_attr( $action->get_group_to_dismiss() );
		}
		if ( $action->get_js_callback() ) {
			$anchor_attributes['data-js-callback'] = esc_attr( $action->get_js_callback() )
													 . '"';
		}

		foreach ( $anchor_attributes as $name => $value ) {
			$action_url .= ' ' . $name . '="' . $value . '"';
		}

		$action_url .= $this->get_data_nonce_attribute();
		$action_url .= '>';
		$action_url .= $action->get_text();
		$action_url .= '</a>';

		return $action_url;
	}

	/**
	 * @return string
	 */
	private function get_data_nonce_attribute() {
		return ' data-nonce="' . wp_create_nonce( WPML_Notices::NONCE_NAME ) . '"';
	}

	/**
	 * @param WPML_Notice $notice
	 *
	 * @return bool
	 */
	private function is_current_screen_allowed( WPML_Notice $notice ) {
		$allow_current_screen   = true;
		$restrict_to_screen_ids = $notice->get_restrict_to_screen_ids();
		if ( $restrict_to_screen_ids && function_exists( 'get_current_screen' ) ) {
			$screen               = get_current_screen();
			$allow_current_screen = $screen && in_array( $screen->id, $restrict_to_screen_ids, true );
		}

		return $allow_current_screen;
	}

	/**
	 * @param WPML_Notice $notice
	 * @param string      $current_page
	 *
	 * @return bool
	 */
	private function is_current_page_prefix_allowed( WPML_Notice $notice, $current_page ) {
		$restrict_to_page_prefixes = $notice->get_restrict_to_page_prefixes();
		if ( $current_page && $restrict_to_page_prefixes ) {
			$allow_current_page_prefix = false;
			foreach ( $restrict_to_page_prefixes as $restrict_to_prefix ) {
				if ( stripos( $current_page, $restrict_to_prefix ) === 0 ) {
					$allow_current_page_prefix = true;
					break;
				}
			}

			return $allow_current_page_prefix;
		}

		return true;
	}

	/**
	 * @param WPML_Notice $notice
	 *
	 * @return bool
	 */
	private function is_current_page_allowed( WPML_Notice $notice ) {
		$current_page = array_key_exists( 'page', $_GET ) ? $_GET['page'] : null;

		if ( ! $this->is_current_screen_allowed( $notice ) ) {
			return false;
		}

		if ( $current_page ) {

			$exclude_from_pages = $notice->get_exclude_from_pages();
			if ( $exclude_from_pages && in_array( $current_page, $exclude_from_pages, true ) ) {
				return false;
			}

			if ( ! $this->is_current_page_prefix_allowed( $notice, $current_page ) ) {
				return false;
			}

			$restrict_to_pages = $notice->get_restrict_to_pages();
			if ( $restrict_to_pages && ! in_array( $current_page, $restrict_to_pages, true ) ) {
				return false;
			}
		}

		return true;
	}

	/**
	 * @param WPML_Notice $notice
	 *
	 * @return bool
	 */
	private function is_allowed_by_callback( WPML_Notice $notice ) {
		$allow_by_callback = true;
		$display_callbacks = $notice->get_display_callbacks();
		if ( $display_callbacks ) {
			$allow_by_callback = false;
			foreach ( $display_callbacks as $callback ) {
				if ( is_callable( $callback ) && call_user_func( $callback ) ) {
					$allow_by_callback = true;
					break;
				}
			}
		}

		return $allow_by_callback;
	}
}