From 21febddad213f8b23ce58e1aac0d883a7f2d7c48 Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Tue, 17 Jun 2014 14:00:38 +0000
Subject: [PATCH] Widget\Filter*: rudimentary filter widgets

Initial implementation, more to come
---
 library/Icinga/Web/Widget/FilterEditor.php    | 193 ++++++++++++++++++
 library/Icinga/Web/Widget/FilterWidget.php    | 107 ++++++++++
 .../controllers/ListController.php            |   9 +
 .../views/scripts/list/services.phtml         |   1 +
 4 files changed, 310 insertions(+)
 create mode 100644 library/Icinga/Web/Widget/FilterEditor.php
 create mode 100644 library/Icinga/Web/Widget/FilterWidget.php

diff --git a/library/Icinga/Web/Widget/FilterEditor.php b/library/Icinga/Web/Widget/FilterEditor.php
new file mode 100644
index 000000000..7f9edefc0
--- /dev/null
+++ b/library/Icinga/Web/Widget/FilterEditor.php
@@ -0,0 +1,193 @@
+<?php
+
+namespace Icinga\Web\Widget;
+
+use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterExpression;
+use Icinga\Data\Filter\FilterChain;
+use Icinga\Web\Url;
+
+/**
+ * Filter
+ */
+class FilterEditor extends AbstractWidget
+{
+    /**
+     * The filter
+     *
+     * @var Filter
+     */
+    private $filter;
+
+    protected $query;
+
+    /**
+     * @var string
+     */
+    private $selectedIdx;
+
+    /**
+     * Create a new FilterWidget
+     *
+     * @param Filter $filter Your filter
+     */
+    public function __construct($props)
+    {
+        $this->filter = $props['filter'];
+        if (array_key_exists('query', $props)) {
+            $this->query = $props['query'];
+        }
+    }
+
+    protected function select($name, $list, $selected)
+    {
+        $view = $this->view();
+        $html = '<select name="' . $view->escape($name) . '">';
+        foreach ($list as $k => $v) {
+            $active = '';
+            if ($k === $selected) {
+                $active = ' selected="selected"';
+            }
+            $html .= sprintf(
+                '<option value="%s"%s>%s</option>',
+                $view->escape($k),
+                $active,
+                $v
+            );
+        }
+        $html .= '</select>';
+        return $html;
+    }
+
+    public function markIndex($idx)
+    {
+        $this->selectedIdx = $idx;
+        return $this;
+    }
+
+    public function removeIndex($idx)
+    {
+        $this->selectedIdx = $idx;
+        return $this;
+    }
+
+    protected function renderFilter($filter, $level = 0)
+    {
+        $html = '';
+        $url = Url::fromRequest();
+
+        $view = $this->view();
+        $idx = $filter->getId();
+        $markUrl = clone($url);
+        $markUrl->setParam('fIdx', $idx);
+
+        $removeUrl = clone($url);
+        $removeUrl->setParam('removeId', $idx);
+        $removeLink = ' <a href="' . $removeUrl . '" title="'
+             . $view->escape(t('Click to remove this part of your filter'))
+             . '">' . $view->icon('remove.png') .  '</a>';
+
+        $addUrl = clone($url);
+        $addUrl->setParam('addToId', $idx);
+        $addLink = ' <a href="' . $addUrl . '" title="'
+             . $view->escape(t('Click to add... filter'))
+             . '">' . $view->icon('create.png') .  '</a>';
+
+
+        $selectedIndex = ($idx === $this->selectedIdx ? ' -&lt;--' : '');
+        $selectIndex = ' <a href="' . $markUrl . '">o</a>';
+
+        if ($filter instanceof FilterChain) {
+            $parts = array();
+            $i = 0;
+
+            foreach ($filter->filters() as $f) {
+                $i++;
+                $parts[] = $this->renderFilter($f, $level + 1);
+            }
+
+            if (empty($parts)) {
+                return $html;
+            }
+            $op = $this->select(
+                'operator',
+                array(
+                    'OR'  => 'OR',
+                    'AND' => 'AND',
+                    'NOT' => 'NOT'
+                ),
+                $filter->getOperatorName()
+            ) . $addLink . $removeLink;
+             $html .= '<span class="handle"> </span>';
+
+            if ($level === 0) {
+                $html .= $op
+                 . '<ul class="datafilter"><li>'
+                 . implode('</li><li>', $parts)
+                 . '</li></ul>';
+            } else {
+                $html .= $op . '<ul><li>' . implode('</li><li>', $parts) . '</li></ul>';
+            }
+            return $html;
+
+        } elseif ($filter instanceof FilterExpression) {
+            $u = $url->without($filter->getColumn());
+        } else {
+           throw new \Exception('WTF');
+        }
+        $value = $filter->getExpression();
+        if (is_array($value)) {
+            $value = implode('|', $value);
+        }
+        $html .=  $this->selectColumn($filter) . ' = <input type="text" name="'
+               . 'value_' . $idx
+               . '" value="'
+               . $value
+               . '" /> ' . $removeLink;
+
+        return $html;
+    }
+
+    protected function arrayForSelect($array)
+    {
+        $res = array();
+        foreach ($array as $k => $v) {
+            if (is_int($k)) {
+                $res[$v] = $v;
+            } else {
+                $res[$k] = $v;
+            }
+        }
+        // sort($res);
+        return $res;
+    }
+
+    protected function selectColumn($filter)
+    {
+        $name = 'column_' . $filter->getId();
+
+        if ($this->query === null) {
+            return sprintf(
+                '<input type="text" name="%s" value="%s" />',
+                $name,
+                $filter->getColumn()
+            );
+        } else {
+            return $this->select(
+                $name,
+                $this->arrayForSelect($this->query->getColumns()),
+                $filter->getColumn()
+            ); 
+        }
+    }
+
+    public function render()
+    {
+        return '<form action="'
+              . Url::fromRequest()->without('modifyFilter')
+              . '">'
+              . $this->renderFilter($this->filter)
+              . '<input type="submit" name="submit" value="Apply" />'
+              . '</form>';
+    }
+}
diff --git a/library/Icinga/Web/Widget/FilterWidget.php b/library/Icinga/Web/Widget/FilterWidget.php
new file mode 100644
index 000000000..37227a654
--- /dev/null
+++ b/library/Icinga/Web/Widget/FilterWidget.php
@@ -0,0 +1,107 @@
+<?php
+
+namespace Icinga\Web\Widget;
+
+use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterExpression;
+use Icinga\Data\Filter\FilterChain;
+use Icinga\Web\Url;
+
+/**
+ * Filter
+ */
+class FilterWidget extends AbstractWidget
+{
+    /**
+     * The filter
+     *
+     * @var Filter
+     */
+    private $filter;
+
+    /**
+     * The domain of the filter, set in the data-icinga-filter-domain attribute
+     * @var string
+     */
+    private $domain;
+
+    /**
+     * Create a new FilterWidget
+     *
+     * @param Filter $filter Your filter
+     */
+    public function __construct(Filter $filter)
+    {
+        $this->filter = $filter;
+    }
+
+    protected function renderFilter($filter, $level = 0)
+    {
+        $html = '';
+        $url = Url::fromRequest();
+        if ($filter instanceof FilterChain) {
+            if ($level === 0) {
+            $op = '</li><li>)' . $filter->getOperatorName() . ' (';
+            } else {
+            $op = '</li><li>) ' . $filter->getOperatorName() . ' ( ';
+            }
+            $parts = array();
+            foreach ($filter->filters() as $f) {
+                $parts[] = $this->renderFilter($f, $level + 1);
+            }
+            if (empty($parts)) {
+                return $html;
+            }
+            if ($level === 0) {
+                $html .= '<ul class="datafilter"><li>( ' . implode($op, $parts) . ' )</li></ul>';
+            } else {
+                $html .= '<ul><li>( ' . implode($op, $parts) . ' )</li></ul>';
+            }
+            return $html;
+        } elseif ($filter instanceof FilterExpression) {
+            $u = $url->without($filter->getColumn());
+        } else {
+            $u = $url . '--';
+        }
+        $html .= '<a href="' . $url . '" title="'
+               . $this->view()->escape(t('Click to remove this part of your filter'))
+               . '">' . $filter . '</a> ';
+        return $html;
+    }
+
+    public function render()
+    {
+        $url = Url::fromRequest();
+        $html = ' <form method="get" class="inline" action="'
+              . $url
+              . '"><input type="text" name="q" style="width: 8em" class="search" value="" placeholder="'
+              . t('Add filter...')
+              . '" /></form><br />';
+
+
+        // $html .= $this->renderFilter($this->filter);
+        
+        $editorUrl = clone $url;
+        $editorUrl->setParam('modifyFilter', true);
+        if  ($this->filter->isEmpty()) {
+            $txt = t('Filter');
+            $title = t('Filter this list');
+            $remove = '';
+        } else {
+            $txt = t('Filtered');
+            $title = t('Modify this filter');
+            $remove = ' <a href="'
+                . Url::fromRequest()->setParams(array())
+                . '" title="'
+                . t('Remove this filter')
+                . '">'
+                . t('remove')
+                . '</a>';
+        }
+        $filter = $this->filter->isEmpty() ? '' : ': ' . $this->filter;
+        $html .= '<a href="' . $editorUrl . '">' . $this->view()->escape($txt) . '</a>'
+             . $filter . $remove;
+
+        return $html;
+    }
+}
diff --git a/modules/monitoring/application/controllers/ListController.php b/modules/monitoring/application/controllers/ListController.php
index 0d17ae87f..0a7d29796 100644
--- a/modules/monitoring/application/controllers/ListController.php
+++ b/modules/monitoring/application/controllers/ListController.php
@@ -451,6 +451,15 @@ class Monitoring_ListController extends Controller
 
         $filter = Filter::fromQueryString((string) $params);
         $query->applyFilter($filter);
+        if ($modifyFilter) {
+            $this->view->filterWidget = Widget::create('filterEditor', array(
+                'filter' => $filter,
+                'query'  => $query
+            ));
+        } else {
+            $this->view->filterWidget = Widget::create('filterWidget', $filter);
+        }
+        $this->view->filter = $filter;
         if ($sort) {
             $query->order($sort, $dir);
         }
diff --git a/modules/monitoring/application/views/scripts/list/services.phtml b/modules/monitoring/application/views/scripts/list/services.phtml
index 11795da5b..adc0cd749 100644
--- a/modules/monitoring/application/views/scripts/list/services.phtml
+++ b/modules/monitoring/application/views/scripts/list/services.phtml
@@ -6,6 +6,7 @@ if (!$this->compact): ?>
 <?= $this->tabs ?>
 <div style="margin: 1em;" class="dontprint">
 <?= $this->translate('Sort by') ?> <?= $this->sortControl ?>
+<?= $this->filterWidget ?><br />
 </div>
 
 <?= $this->paginationControl($services, null, null, array('preserve' => $this->preserve)) ?>