DashboardPanelCollection.module

<?php namespace Daun\Dashboard;

use ProcessWire\Field;
use ProcessWire\Page;
use ProcessWire\PageArray;
use function ProcessWire\__;

// Include abstract panel base class
require_once dirname(__DIR__).'/Dashboard/DashboardPanel.class.php';

class DashboardPanelCollection extends DashboardPanel
{
    public static function getModuleInfo()
    {
        return array_merge(
            parent::getModuleInfo(),
            [
                'title'    => __('Dashboard Panel: Collection', __FILE__),
                'summary'  => __('Display a collection of pages in a table', __FILE__),
                'author'   => 'Philipp Daun',
                'version'  => '1.5.9',
            ]
        );
    }

    public function getIcon()
    {
        return 'files-o';
    }

    public function getTitle()
    {
        $count = $this->collection->count;

        return sprintf($this->_n('%d Page', '%d Pages', $count), $count);
    }

    /**
     * Render the main content.
     */
    public function getContent()
    {
        if (!$this->collection->count) {
            return $this->emptyMessage;
        }

        if ($this->actions !== false) {
            $this->columns['actions__'] = ''; // $this->_('Actions');
        }

        $pages = $this->collection->getArray();
        $columns = $this->parseColumnDefinitions();
        $rows = array_map(function ($page) use ($columns) {
            return array_map(function ($column) use ($page) {
                return $this->renderCellContent($page, $column);
            }, $columns);
        }, $pages);

        if ($this->showHeaders) {
            $headers = array_map(function ($column) {
                return [$column->label, $column->class];
            }, $columns);
            array_unshift($rows, $headers);
        }

        return $this->renderTable($rows, [
            'header'   => $this->showHeaders,
            'sortable' => $this->sortable,
            'class'    => $this->actions !== false ? 'has-actions' : 'has-no-actions',
        ]);
    }

    /**
     * Parse column definitions and extract fieldname, column label and CSS class.
     */
    public function parseColumnDefinitions()
    {
        $labelField = $this->getLabelFieldname();

        return array_map(function ($key, $value) use ($labelField) {
            // Extract column and label
            $column = $value;
            $label = null;
            if (is_string($key)) {
                $column = $key;
                $label = $value;
            }

            // Construct CSS class
            $class = 'DashboardTableColumn__'.$this->sanitizer()->snakeCase($column);

            // Special case: page icon column: no title by default
            if ($column === 'page_icon' && $label === null) {
                $label = '';
            }

            // Get label from field/template context
            if ($label === null) {
                $field = $this->fields->get($column);
                if ($field instanceof Field) {
                    $label = $field->getLabel();
                    if ($this->template && $this->template->hasField($column)) {
                        $context = $this->template->fields->getFieldContext($column);
                        $label = $context->{$labelField} ?? $label;
                    }
                }
            }

            // Special case: icon as column header
            if (strpos($label ?: '', 'fa-') === 0) {
                $label = $this->renderIcon($label);
            }

            return (object) [
                'column' => $column,
                'label'  => $label,
                'class'  => $class,
            ];
        }, array_keys($this->columns), array_values($this->columns));
    }

    /**
     * Generate the content of a single row for a given page.
     */
    public function renderCellContent($page, $column)
    {
        $markup = $column->column;
        $class = $column->class;

        $field = $this->fields->get($markup);
        $fieldtype = is_object($field)
            ? "$field->type"
            : (is_string($field)
                ? $field
                : null);

        $content = null;

        // Special case: action links
        if ($markup === 'actions__') {
            $content = $this->renderPageActions($page);
        }
        // Special case: page icon
        elseif ($markup === 'page_icon') {
            $content = $this->renderIcon($page->getIcon());
        }
        // Special case: page status
        elseif ($markup === 'status__') {
            $content = $this->renderStatusIcon($page);
        }
        // Special case: published status toggle
        elseif ($markup === 'published__') {
            $content = $this->renderStatusToggle($page, 'published');
        }
        // Special case: visible status toggle
        elseif ($markup === 'visible__') {
            $content = $this->renderStatusToggle($page, 'visible');
        }
        // Special case: system timestamps
        elseif (in_array($markup, ['modified', 'created'])) {
            $content = $this->datetime->date($this->dateFormat, $page->$markup);
        }
        // Special case: image fields
        elseif ($fieldtype == 'FieldtypeImage') {
            $class .= ' is-image-column';
            $images = $page->get($markup)->slice(0, $this->maxImageNum);
            $content = $this->renderImageThumbnails($images);
        }
        // Special case: color fields
        elseif ($fieldtype == 'FieldtypeColorPicker') {
            $class .= ' is-color-column';
            $color = $page->getFormatted($markup);
            $content = "<span style='background-color:{$color}'></span>";
        }
        // Special case: timestamp fields
        // disabled for now (formatted datetime values work just as well)
        elseif (false && $fieldtype == 'FieldtypeDatetime') {
            $content = $this->datetime->date($this->dateFormat, $page->getUnformatted($markup));
        }

        // All others
        if ($content === null) {
            $content = $page->getText($markup, false, true); // $oneLine, $entities
        }

        return [$content, $class];
    }

    /**
     * Define which field to use for getting a field's title per context
     * "label" vs. multi-lang e.g. "label1108".
     */
    public function getLabelFieldname()
    {
        if ($this->languages && !$this->user->language->isDefault) {
            return "label{$this->user->language->id}";
        }

        return 'label';
    }

    public function getFooter()
    {
        $footer = '';

        // Buttons (add new)
        $buttons = $this->renderFooterButtons();
        if ($buttons) {
            $footer .= "<div class='DashboardFooterButtons'>{$buttons}</div>";
        }

        // Pagination
        if ($this->supportsPagination()) {
            $pagination = $this->renderPaginationPager($this->collection);
            $footer .= "<div class='DashboardFooterPagination'>{$pagination}</div>";
        }

        return $footer ? "<div>{$footer}</div>" : '';
    }

    protected function executeAjaxActions()
    {
        if (!$this->config->ajax) return;

        $actions = $_POST['actions'] ?? null;
        if (!$actions) return;

        $changed = false;

        foreach ($actions as $action => $pages) {
            foreach ($pages as $pageId => $value) {
                $page = $this->pages->get($pageId);
                if (!$page->id) {
                    continue;
                }
                try {
                    switch ($action) {
                    case 'publish':
                        $publish = !!$value;
                        $published = !$page->isUnpublished();
                        if ($page->publishable() && $publish && !$published) {
                            $page->removeStatus(Page::statusUnpublished);
                            $page->save('status');
                            $changed = true;
                        }
                        if (!$publish && $published) {
                            $page->addStatus(Page::statusUnpublished);
                            $page->save('status');
                            $changed = true;
                        }
                        break;
                    case 'show':
                        $show = !!$value;
                        $visible = !$page->isHidden();
                        if ($page->editable() && $show && !$visible) {
                            $page->removeStatus(Page::statusHidden);
                            $page->save('status');
                            $changed = true;
                        }
                        if (!$show && $visible) {
                            $page->addStatus(Page::statusHidden);
                            $page->save('status');
                            $changed = true;
                        }
                        break;
                    case 'trash':
                        $trash = !!$value;
                        $trashed = $page->isTrash();
                        if ($trash && !$trashed) { // $page->trashable()
                            $this->pages->trash($page);
                            $changed = true;
                        }
                        if (!$trash && $trashed) { // $page->restorable()
                            $this->pages->restore($page);
                            $changed = true;
                        }
                        break;
                    }
                } catch (\Throwable $th) {
                    echo $th->getMessage();
                    die();
                    throw $th;
                }
            }
        }

        // Update collection after changes, e.g. when pages trashed
        if ($changed) {
            $this->refetchCollection();
        }
    }

    public function setup()
    {
        parent::setup();

        $this->wire()->modules->get('JqueryUI')->use('vex');

        $this->editUrl = $this->config->urls->admin.'page/edit/';
        $this->addUrl = $this->config->urls->admin.'page/add/';
        $this->listUrl = $this->config->urls->admin.'page/list/';

        $this->collection = $this->data['collection'] ?? null;
        $this->columns = $this->data['columns'] ?? [
            'title' => $this->_('Title'),
            'url'   => $this->_('URL'),
        ];
        $this->actions = $this->data['actions'] ?? ['view', 'edit'];
        $this->pagination = $this->data['pagination'] ?? true;
        $this->sortable = $this->data['sortable'] ?? false;
        $this->showHeaders = $this->data['headers'] ?? true;
        $this->dateFormat = $this->data['dateFormat'] ?? 'relative';
        $this->emptyMessage = $this->data['emptyMessage'] ?? '';
        $this->maxImageNum = $this->data['maxImageNum'] ?? 1;
        $this->parent = $this->getPageFromObjectOrSelectorOrID($this->data['parent'] ?? null);
        $this->template = $this->templates->get($this->data['template'] ?? null);
        $this->listPage = $this->getPageFromObjectOrSelectorOrID($this->data['list'] ?? null);
        $this->editMode = $this->data['editMode'] ?? self::windowModeBlank;
        $this->viewMode = $this->data['viewMode'] ?? self::windowModeBlank;
        $this->addUrlParams = $this->data['addUrlParams'] ?? [];
        $this->confirmTrash = $this->data['confirmTrash'] ?? true;
        $this->confirmTrashMessage = $this->data['confirmTrashMessage'] ?? $this->_('Are you sure?');

        if (is_string($this->collection)) {
            $this->collection = $this->pages->find($this->collection);
        }

        if (!$this->collection) {
            $this->collection = new PageArray();
        }

        if (is_array($this->actions) && !count($this->actions)) {
            $this->actions = false;
        }

        if ($this->config->ajax) {
            $this->executeAjaxActions();
            $this->refetchCollectionForPagination();
        }

        return true;
    }

    protected function supportsPagination()
    {
        return (
            $this->pagination &&
            $this->collection instanceof PageArray &&
            $this->collection->hasPagination() &&
            $this->collection->getSelectors()
        );
    }

    protected function refetchCollection()
    {
        if (!($this->collection instanceof PageArray)) {
            return;
        }

        /** @var \ProcessWire\Selectors $selectors */
        $selectors = $this->collection->getSelectors();
        if (!$selectors) {
            return;
        }

        $this->collection = $this->pages->find($selectors, ['cache' => false]);
    }

    protected function refetchCollectionForPagination()
    {
        if (!$this->config->ajax) return;
        if (!$this->supportsPagination()) return;

        $this->wire()->input->setPageNum($_POST['page'] ?? 1);
        $this->refetchCollection();
    }

    protected function renderPaginationSummary(PageArray $items)
    {
        return sprintf(
            $this->_('Showing %d of %d'),
            $items->count,
            $items->getTotal()
        );
    }

    protected function renderPaginationPager(PageArray $items)
    {
        /** @var \ProcessWire\MarkupPagerNav $pager */
        $pager = $this->wire()->modules->get('MarkupPagerNav');

        $summary = $items->getPaginationString();
        $pagination = $pager->render($items, [
            'numPageLinks' => 3,
            'listClass' => 'uk-pagination',
            'listMarkup' => "<ul class='uk-pagination DashboardPagination'>{out}</ul>",
            'linkMarkup' => "<a href='{url}' data-pagination>{out}</a>",
            'currentItemClass' => 'uk-active',
            'separatorItemLabel' => '<span>&hellip;</span>',
            'separatorItemClass' => 'DashboardPaginationSeparator',
            'currentLinkMarkup' => "<a href='{url}' data-pagination>{out}</a>",
            'nextItemLabel' => '<i class="fa fa-angle-right"></i>',
            'previousItemLabel' => '<i class="fa fa-angle-left"></i>',
            'nextItemClass' => '',
            'previousItemClass' => '',
            'lastItemClass' => '',
        ]);

        return "<div>{$summary}</div> {$pagination}";
    }

    /**
     * Render footer buttons
     * Taken from PageLister, so it should work for most cases.
     */
    protected function renderFooterButtons()
    {
        $action = '';
        $out = '';

        if ($this->parent && $this->parent->id && $this->parent->addable()) {
            $action = "{$this->addUrl}?parent_id={$this->parent->id}";
        } elseif ($this->template && ($parent = $this->template->getParentPage(true))) {
            if ($parent->id) {
                $action = "{$this->addUrl}?parent_id={$parent->id}";
            } // defined parent
            else {
                $action = "{$this->addUrl}?template_id={$this->template->id}";
            } // multiple possible parents
        }

        if ($action) {
            $mode = $this->editMode;
            $addButtonOptions = [
                'icon'               => 'plus-circle',
                'secondary'          => true,
                'modal'              => self::windowModeModal === $mode,
                'blank'              => self::windowModeBlank === $mode,
                'modalButtons'       => self::modalButtons,
                'modalAutoclose'     => self::modalAutocloseAdd,
                'reloadOnModalClose' => true,
            ];
            $action = $this->setQueryParameter($action, $this->addUrlParams);
            if (self::windowModeModal === $mode) {
                $action = $this->setQueryParameter($action, 'modal', 1);
            }

            $out .= $this->renderFooterButton($action, $this->_('Add New'), $addButtonOptions);
        }

        $action = '';

        if ($this->listPage && $this->listPage->id) {
            if ($this->listPage->template == 'admin') {
                $action = "{$this->listPage->url}"; // admin process page
            } else {
                $action = "{$this->listUrl}?open={$this->listPage->id}"; // open page list at this page
            }
        } elseif ($this->parent && $this->parent->id) {
            $action = "{$this->listUrl}?open={$this->parent->id}"; // open page list at parent page
        }

        if ($action) {
            $mode = $this->viewMode;
            $viewButtonOptions = [
                'icon'      => 'search-plus',
                'secondary' => true,
                'modal'     => self::windowModeModal === $mode,
                'blank'     => self::windowModeBlank === $mode,
            ];
            if (self::windowModeModal === $mode) {
                $action = $this->setQueryParameter($action, 'modal', 1);
            }
            $out .= $this->renderFooterButton($action, $this->_('View All'), $viewButtonOptions);
        }

        return $out;
    }

    /**
     * Get actions for given page.
     */
    protected function getPageActions(Page $page)
    {
        if ($this->actions === false) {
            return [];
        }

        $links = [];

        foreach ($this->actions as $action) {
            if ($action === 'edit') {
                $links['edit'] = [
                    'href'     => $page->editUrl,
                    'label'    => $this->_('Edit'),
                    'icon'     => ['pencil', 'pen-to-square'],
                    'mode'     => $this->editMode,
                    'reload'   => true,
                    'disabled' => !$page->editable,
                ];
            }
            if ($action === 'view') {
                $links['view'] = [
                    'href'     => $page->url,
                    'label'    => $this->_('View'),
                    'icon'     => 'eye',
                    'mode'     => $this->viewMode,
                    'disabled' => !$page->viewable,
                ];
            }
            if ($action === 'trash') {
                $links['trash'] = [
                    'href' => '#',
                    'label' => $this->_('Trash'),
                    'icon' => ['trash', 'trash-can'],
                    // 'disabled' => $page->isTrash() || !$page->trashable,
                    'attributes' => [
                        'data-action'  => "[trash][{$page}]",
                        'data-action-value'  => "1",
                    ] + ($this->confirmTrash ? [
                        'data-action-confirm' => $this->confirmTrashMessage,
                    ] : []),
                ];
            }
        }

        return $links;
    }

    /**
     * Render action links for given page.
     */
    protected function renderPageActions(Page $page)
    {
        $actions = $this->getPageActions($page);
        $links = array_map(function ($action) {
            $icon = $this->renderIcon($action['icon'] ?? '');
            if ($action['disabled'] ?? false) {
                return $icon;
            }
            $attr = (array) ($action['attributes'] ?? []);
            $mode = $action['mode'] ?? false;
            $class = $action['class'] ?? '';

            if (self::windowModeModal === $mode) {
                $this->includeModalScripts();
                $class .= 'pw-modal pw-modal-large';
                $action['href'] = $this->setQueryParameter($action['href'], 'modal', 1);
                $attr['data-buttons'] = self::modalButtons;
                $attr['data-autoclose'] = self::modalAutocloseEdit;
                if ($action['reload'] ?? false) {
                    $attr['data-reload-on-close'] = true;
                }
            }

            if (self::windowModeBlank === $mode) {
                $attr['target'] = '_blank';
            }

            return $this->renderTooltipLink(
                $action['href'],
                $class,
                $icon,
                $action['label'] ?? '',
                $attr
            );
        }, $actions);

        return implode(' ', $links);
    }

    /**
     * Render a link with tooltip.
     */
    protected function renderTooltipLink($href, $class, $label, $description, $attributes = [])
    {
        $attributes = $this->renderAttributes($attributes);

        return "<a href='$href' class='tooltip $class' title='$description' $attributes>$label</a>";
    }

    /**
     * Render image thumbnails.
     */
    protected function renderImageThumbnails($images)
    {
        $imgModule = $this->modules->get('InputfieldImage');
        $thumbnails = array_map(function ($image) use ($imgModule) {
            $thumb = $imgModule->getAdminThumb($image);

            return $thumb['markup'] ?? '';
        }, $images->getArray());

        return implode(' ', $thumbnails);
    }

    /**
     * Render status icon.
     */
    protected function renderStatusIcon(Page $page)
    {
        if ($page->hasStatus(Page::statusTrash)) {
            $icon = 'trash-can';
            $tooltip = $this->_('In Trash');
        } elseif ($page->hasStatus(Page::statusUnpublished)) {
            $icon = 'pen';
            $tooltip = $this->_('Draft');
        } elseif ($page->hasStatus(Page::statusHidden)) {
            $icon = 'eye-slash';
            $tooltip = $this->_('Hidden');
        } else {
            $icon = 'circle-check';
            $tooltip = $this->_('Published');
        }
        $icon = $this->renderIcon($icon);
        return "<span class='tooltip' title='{$tooltip}'>{$icon}</span>";
    }

    /**
     * Render publish/visibility toggle.
     */
    protected function renderStatusToggle(Page $page, $status = 'published')
    {
        $status = $this->wire()->sanitizer->option($status, ['published', 'visible']) ?? 'published';

        switch ($status) {
        case 'visible':
            $action = 'show';
            $statusFlag = Page::statusHidden;
            $labelInactive = $this->_('Hidden');
            $labelActive = $this->_('Visible');
            break;
        case 'published':
        default:
            $action = 'publish';
            $statusFlag = Page::statusUnpublished;
            $labelInactive = $this->_('Draft');
            $labelActive = $this->_('Published');
            break;
        }

        $active = !$page->hasStatus($statusFlag);
        $checked = $active ? 'checked' : '';
        $tooltip = $active ? $labelActive : $labelInactive;

        return "
            <label class='uk-switch tooltip' for='page-{$status}-{$page}' title='{$tooltip}'>
                <input type='checkbox' id='page-{$status}-{$page}' name='actions[{$action}][{$page}]' value='1' {$checked}>
                <div class='uk-switch-slider'></div>
            </label>
        ";
    }
}