/**
  * Process screen.
  *
  * @return CDiv (screen inside container)
  */
 public function get()
 {
     // fetch hosts
     $hosts = API::Host()->get(['output' => ['hostid', 'status'], 'selectGraphs' => $this->screenitem['style'] == STYLE_LEFT ? API_OUTPUT_COUNT : null, 'selectScreens' => $this->screenitem['style'] == STYLE_LEFT ? API_OUTPUT_COUNT : null, 'groupids' => $this->screenitem['resourceid'], 'preservekeys' => true]);
     $hostids = array_keys($hosts);
     $options = ['output' => ['triggerid', 'expression', 'description', 'url', 'value', 'priority', 'lastchange', 'flags'], 'selectHosts' => ['hostid', 'name', 'status'], 'selectItems' => ['itemid', 'hostid', 'name', 'key_', 'value_type'], 'hostids' => $hostids, 'monitored' => true, 'skipDependent' => true, 'sortfield' => 'description', 'preservekeys' => true];
     // application filter
     if ($this->screenitem['application'] !== '') {
         $applications = API::Application()->get(['output' => [], 'hostids' => $hostids, 'search' => ['name' => $this->screenitem['application']], 'preservekeys' => true]);
         $options['applicationids'] = array_keys($applications);
     }
     $triggers = API::Trigger()->get($options);
     $triggers = CMacrosResolverHelper::resolveTriggerUrls($triggers);
     /*
      * Each screen cell with "Triggers overview" depends on one specific group which in this case is 'resourceid'.
      * Pass it as 'groupid' to menu pop-up "Events" link.
      */
     foreach ($triggers as &$trigger) {
         $trigger['groupid'] = $this->screenitem['resourceid'];
     }
     unset($trigger);
     $groups = API::HostGroup()->get(['output' => ['name'], 'groupids' => [$this->screenitem['resourceid']]]);
     $header = (new CDiv([new CTag('h4', true, _('Triggers overview')), (new CList())->addItem([_('Group'), ':', SPACE, $groups[0]['name']])]))->addClass(ZBX_STYLE_DASHBRD_WIDGET_HEAD);
     $table = getTriggersOverview($hosts, $triggers, $this->pageFile, $this->screenitem['style'], $this->screenid);
     $footer = (new CList())->addItem(_s('Updated: %s', zbx_date2str(TIME_FORMAT_SECONDS)))->addClass(ZBX_STYLE_DASHBRD_WIDGET_FOOT);
     return $this->getOutput(new CUiWidget(uniqid(), [$header, $table, $footer]));
 }

 /**
  * Process screen.
  *
  * @return CDiv (screen inside container)
  */
 public function get()
 {
     // if screen is defined in template, then 'real_resourceid' is defined and should be used
     if (!empty($this->screenitem['real_resourceid'])) {
         $this->screenitem['resourceid'] = $this->screenitem['real_resourceid'];
     }
     if ($this->screenitem['dynamic'] == SCREEN_DYNAMIC_ITEM && !empty($this->hostid)) {
         $newitemid = get_same_item_for_host($this->screenitem['resourceid'], $this->hostid);
         $this->screenitem['resourceid'] = !empty($newitemid) ? $newitemid : 0;
     }
     if ($this->screenitem['resourceid'] == 0) {
         $table = (new CTableInfo())->setHeader([_('Timestamp'), _('Item')]);
         return $this->getOutput($table);
     }
     $items = CMacrosResolverHelper::resolveItemNames([get_item_by_itemid($this->screenitem['resourceid'])]);
     $item = reset($items);
     switch ($item['value_type']) {
         case ITEM_VALUE_TYPE_TEXT:
         case ITEM_VALUE_TYPE_LOG:
             $orderField = 'id';
             break;
         case ITEM_VALUE_TYPE_FLOAT:
         case ITEM_VALUE_TYPE_UINT64:
         default:
             $orderField = ['itemid', 'clock'];
     }
     $host = get_host_by_itemid($this->screenitem['resourceid']);
     $table = (new CTableInfo())->setHeader([_('Timestamp'), _('Value')]);
     $stime = zbxDateToTime($this->timeline['stime']);
     $histories = API::History()->get(['history' => $item['value_type'], 'itemids' => $this->screenitem['resourceid'], 'output' => API_OUTPUT_EXTEND, 'sortorder' => ZBX_SORT_DOWN, 'sortfield' => $orderField, 'limit' => $this->screenitem['elements'], 'time_from' => $stime, 'time_till' => $stime + $this->timeline['period']]);
     foreach ($histories as $history) {
         switch ($item['value_type']) {
             case ITEM_VALUE_TYPE_FLOAT:
                 sscanf($history['value'], '%f', $value);
                 break;
             case ITEM_VALUE_TYPE_TEXT:
             case ITEM_VALUE_TYPE_STR:
             case ITEM_VALUE_TYPE_LOG:
                 $value = $this->screenitem['style'] ? new CJsScript($history['value']) : $history['value'];
                 break;
             default:
                 $value = $history['value'];
                 break;
         }
         if ($item['valuemapid'] > 0) {
             $value = applyValueMap($value, $item['valuemapid']);
         }
         if ($this->screenitem['style'] == 0) {
             $value = new CPre($value);
         }
         $table->addRow([zbx_date2str(DATE_TIME_FORMAT_SECONDS, $history['clock']), $value]);
     }
     $footer = (new CList())->addItem(_s('Updated: %s', zbx_date2str(TIME_FORMAT_SECONDS)))->addClass(ZBX_STYLE_DASHBRD_WIDGET_FOOT);
     return $this->getOutput((new CUiWidget(uniqid(), [$table, $footer]))->setHeader($host['name'] . NAME_DELIMITER . $item['name_expanded']));
 }

 /**
  * Process screen.
  *
  * @return CDiv (screen inside container)
  */
 public function get()
 {
     // if screen is defined in template, then 'real_resourceid' is defined and should be used
     if (!empty($this->screenitem['real_resourceid'])) {
         $this->screenitem['resourceid'] = $this->screenitem['real_resourceid'];
     }
     if ($this->screenitem['dynamic'] == SCREEN_DYNAMIC_ITEM && !empty($this->hostid)) {
         $newitemid = get_same_item_for_host($this->screenitem['resourceid'], $this->hostid);
         $this->screenitem['resourceid'] = !empty($newitemid) ? $newitemid : 0;
     }
     if ($this->screenitem['resourceid'] == 0) {
         $table = new CTableInfo(_('No values found.'));
         $table->setHeader(array(_('Timestamp'), _('Item')));
         return $this->getOutput($table);
     }
     $items = CMacrosResolverHelper::resolveItemNames(array(get_item_by_itemid($this->screenitem['resourceid'])));
     $item = reset($items);
     switch ($item['value_type']) {
         case ITEM_VALUE_TYPE_TEXT:
         case ITEM_VALUE_TYPE_LOG:
             $orderField = 'id';
             break;
         case ITEM_VALUE_TYPE_FLOAT:
         case ITEM_VALUE_TYPE_UINT64:
         default:
             $orderField = array('itemid', 'clock');
     }
     $host = get_host_by_itemid($this->screenitem['resourceid']);
     $table = new CTableInfo(_('No values found.'));
     $table->setHeader(array(_('Timestamp'), $host['name'] . NAME_DELIMITER . $item['name_expanded']));
     $stime = zbxDateToTime($this->timeline['stime']);
     $histories = API::History()->get(array('history' => $item['value_type'], 'itemids' => $this->screenitem['resourceid'], 'output' => API_OUTPUT_EXTEND, 'sortorder' => ZBX_SORT_DOWN, 'sortfield' => $orderField, 'limit' => $this->screenitem['elements'], 'time_from' => $stime, 'time_till' => $stime + $this->timeline['period']));
     foreach ($histories as $history) {
         switch ($item['value_type']) {
             case ITEM_VALUE_TYPE_FLOAT:
                 sscanf($history['value'], '%f', $value);
                 break;
             case ITEM_VALUE_TYPE_TEXT:
             case ITEM_VALUE_TYPE_STR:
             case ITEM_VALUE_TYPE_LOG:
                 $value = $this->screenitem['style'] ? new CJsScript($history['value']) : $history['value'];
                 break;
             default:
                 $value = $history['value'];
                 break;
         }
         if ($item['valuemapid'] > 0) {
             $value = applyValueMap($value, $item['valuemapid']);
         }
         $class = $this->screenitem['style'] ? null : 'pre';
         $table->addRow(array(zbx_date2str(DATE_TIME_FORMAT_SECONDS, $history['clock']), new CCol($value, $class)));
     }
     return $this->getOutput($table);
 }

 public function addItem($itemid, $calc_fnc = CALC_FNC_AVG, $color = null, $type = null)
 {
     $items = CMacrosResolverHelper::resolveItemNames(array(get_item_by_itemid($itemid)));
     $this->items[$this->num] = reset($items);
     $host = get_host_by_hostid($this->items[$this->num]['hostid']);
     $this->items[$this->num]['host'] = $host['host'];
     $this->items[$this->num]['hostname'] = $host['name'];
     $this->items[$this->num]['color'] = is_null($color) ? 'Dark Green' : $color;
     $this->items[$this->num]['calc_fnc'] = is_null($calc_fnc) ? CALC_FNC_AVG : $calc_fnc;
     $this->items[$this->num]['calc_type'] = is_null($type) ? GRAPH_ITEM_SIMPLE : $type;
     $this->num++;
 }

 /**
  * Process screen.
  *
  * @return CDiv (screen inside container)
  */
 public function get()
 {
     // prevent from resolving macros in configuration page
     if ($this->mode != SCREEN_MODE_PREVIEW && $this->mode != SCREEN_MODE_SLIDESHOW) {
         return $this->getOutput(new CIFrame($this->screenitem['url'], $this->screenitem['width'], $this->screenitem['height'], 'auto'));
     } elseif ($this->screenitem['dynamic'] == SCREEN_DYNAMIC_ITEM && $this->hostid == 0) {
         return $this->getOutput((new CTableInfo())->setNoDataMessage(_('No host selected.')));
     }
     $resolveHostMacros = $this->screenitem['dynamic'] == SCREEN_DYNAMIC_ITEM || $this->isTemplatedScreen;
     $url = CMacrosResolverHelper::resolveScreenElementURL(['config' => $resolveHostMacros ? 'screenElementURL' : 'screenElementURLUser', 'url' => $this->screenitem['url'], 'hostid' => $resolveHostMacros ? $this->hostid : 0]);
     $this->screenitem['url'] = $url ? $url : $this->screenitem['url'];
     return $this->getOutput(new CIFrame($this->screenitem['url'], $this->screenitem['width'], $this->screenitem['height'], 'auto'));
 }

 /**
  * Prepare data for favourite graphs menu popup.
  *
  * @return array
  */
 public static function getFavouriteGraphs()
 {
     $graphs = $simpeGraphs = array();
     $favourites = CFavorite::get('web.favorite.graphids');
     if ($favourites) {
         $graphIds = $itemIds = $dbGraphs = $dbItems = array();
         foreach ($favourites as $favourite) {
             if ($favourite['source'] === 'itemid') {
                 $itemIds[$favourite['value']] = $favourite['value'];
             } else {
                 $graphIds[$favourite['value']] = $favourite['value'];
             }
         }
         if ($graphIds) {
             $dbGraphs = API::Graph()->get(array('output' => array('graphid', 'name'), 'selectHosts' => array('hostid', 'host'), 'expandName' => true, 'graphids' => $graphIds, 'preservekeys' => true));
         }
         if ($itemIds) {
             $dbItems = API::Item()->get(array('output' => array('itemid', 'hostid', 'name', 'key_'), 'selectHosts' => array('hostid', 'host'), 'itemids' => $itemIds, 'webitems' => true, 'preservekeys' => true));
             $dbItems = CMacrosResolverHelper::resolveItemNames($dbItems);
         }
         foreach ($favourites as $favourite) {
             $sourceId = $favourite['value'];
             if ($favourite['source'] === 'itemid') {
                 if (isset($dbItems[$sourceId])) {
                     $dbItem = $dbItems[$sourceId];
                     $dbHost = reset($dbItem['hosts']);
                     $simpeGraphs[] = array('id' => $sourceId, 'label' => $dbHost['host'] . NAME_DELIMITER . $dbItem['name_expanded']);
                 }
             } else {
                 if (isset($dbGraphs[$sourceId])) {
                     $dbGraph = $dbGraphs[$sourceId];
                     $dbHost = reset($dbGraph['hosts']);
                     $graphs[] = array('id' => $sourceId, 'label' => $dbHost['host'] . NAME_DELIMITER . $dbGraph['name']);
                 }
             }
         }
     }
     return array('type' => 'favouriteGraphs', 'graphs' => $graphs, 'simpleGraphs' => $simpeGraphs);
 }

 /**
  * Retrieves items created for item prototype given as resource for this screen item
  * and returns array of the item IDs, ordered by item name.
  *
  * @return array
  */
 protected function getCreatedItemIds()
 {
     if (!$this->createdItemIds) {
         $itemPrototype = $this->getItemPrototype();
         if ($itemPrototype) {
             // get all created (discovered) items for current host
             $allCreatedItems = API::Item()->get(array('output' => array('itemid', 'name', 'key_', 'hostid'), 'hostids' => array($itemPrototype['discoveryRule']['hostid']), 'selectItemDiscovery' => array('itemid', 'parent_itemid'), 'filter' => array('flags' => ZBX_FLAG_DISCOVERY_CREATED)));
             // collect those items where parent item is item prototype selected for this screen item as resource
             $createdItems = array();
             foreach ($allCreatedItems as $item) {
                 if ($item['itemDiscovery']['parent_itemid'] == $itemPrototype['itemid']) {
                     $createdItems[] = $item;
                 }
             }
             $createdItems = CMacrosResolverHelper::resolveItemNames($createdItems);
             foreach ($createdItems as $item) {
                 $this->createdItemIds[$item['itemid']] = $item['name_expanded'];
             }
             natsort($this->createdItemIds);
             $this->createdItemIds = array_keys($this->createdItemIds);
         }
     }
     return $this->createdItemIds;
 }

//.........这里部分代码省略.........
    foreach ($triggers as $tnum => $trigger) {
        // if trigger is lost (broken expression) we skip it
        if (empty($trigger['hosts'])) {
            unset($triggers[$tnum]);
            continue;
        }
        $host = reset($trigger['hosts']);
        $trigger['hostid'] = $host['hostid'];
        $trigger['hostname'] = $host['name'];
        if ($trigger['lastEvent']) {
            $trigger['lastEvent']['acknowledges'] = isset($eventAcknowledges[$trigger['lastEvent']['eventid']]) ? $eventAcknowledges[$trigger['lastEvent']['eventid']]['acknowledges'] : null;
        }
        $triggers[$tnum] = $trigger;
    }
    $hostIds = zbx_objectValues($triggers, 'hostid');
    // get hosts
    $hosts = API::Host()->get(array('hostids' => $hostIds, 'output' => array('hostid', 'name', 'status', 'maintenance_status', 'maintenance_type', 'maintenanceid'), 'selectScreens' => API_OUTPUT_COUNT, 'preservekeys' => true));
    // actions
    $actions = getEventActionsStatHints($eventIds);
    // ack params
    $ackParams = isset($filter['screenid']) ? array('screenid' => $filter['screenid']) : array();
    $config = select_config();
    // indicator of sort field
    if ($showSortIndicator) {
        $sortDiv = new CDiv(SPACE, $filter['sortorder'] === ZBX_SORT_DOWN ? 'icon_sortdown default_cursor' : 'icon_sortup default_cursor');
        $sortDiv->addStyle('float: left');
        $hostHeaderDiv = new CDiv(array(_('Host'), SPACE));
        $hostHeaderDiv->addStyle('float: left');
        $issueHeaderDiv = new CDiv(array(_('Issue'), SPACE));
        $issueHeaderDiv->addStyle('float: left');
        $lastChangeHeaderDiv = new CDiv(array(_('Time'), SPACE));
        $lastChangeHeaderDiv->addStyle('float: left');
    }
    $table = new CTableInfo(_('No events found.'));
    $table->setHeader(array(is_show_all_nodes() ? _('Node') : null, $showSortIndicator && $filter['sortfield'] === 'hostname' ? array($hostHeaderDiv, $sortDiv) : _('Host'), $showSortIndicator && $filter['sortfield'] === 'priority' ? array($issueHeaderDiv, $sortDiv) : _('Issue'), $showSortIndicator && $filter['sortfield'] === 'lastchange' ? array($lastChangeHeaderDiv, $sortDiv) : _('Last change'), _('Age'), _('Info'), $config['event_ack_enable'] ? _('Ack') : null, _('Actions')));
    $scripts = API::Script()->getScriptsByHosts($hostIds);
    // triggers
    foreach ($triggers as $trigger) {
        $host = $hosts[$trigger['hostid']];
        $hostName = new CSpan($host['name'], 'link_menu');
        $hostName->setMenuPopup(getMenuPopupHost($host, $scripts[$host['hostid']]));
        // add maintenance icon with hint if host is in maintenance
        $maintenanceIcon = null;
        if ($host['maintenance_status']) {
            $maintenanceIcon = new CDiv(null, 'icon-maintenance-abs');
            // get maintenance
            $maintenances = API::Maintenance()->get(array('maintenanceids' => $host['maintenanceid'], 'output' => API_OUTPUT_EXTEND, 'limit' => 1));
            if ($maintenance = reset($maintenances)) {
                $hint = $maintenance['name'] . ' [' . ($host['maintenance_type'] ? _('Maintenance without data collection') : _('Maintenance with data collection')) . ']';
                if (isset($maintenance['description'])) {
                    // double quotes mandatory
                    $hint .= "\n" . $maintenance['description'];
                }
                $maintenanceIcon->setHint($hint);
                $maintenanceIcon->addClass('pointer');
            }
            $hostName->addClass('left-to-icon-maintenance-abs');
        }
        $hostDiv = new CDiv(array($hostName, $maintenanceIcon), 'maintenance-abs-cont');
        // unknown triggers
        $unknown = SPACE;
        if ($trigger['state'] == TRIGGER_STATE_UNKNOWN) {
            $unknown = new CDiv(SPACE, 'status_icon iconunknown');
            $unknown->setHint($trigger['error'], '', 'on');
        }
        // trigger has events
        if ($trigger['lastEvent']) {
            // description
            $description = CMacrosResolverHelper::resolveEventDescription(zbx_array_merge($trigger, array('clock' => $trigger['lastEvent']['clock'], 'ns' => $trigger['lastEvent']['ns'])));
            // ack
            $ack = getEventAckState($trigger['lastEvent'], empty($filter['backUrl']) ? true : $filter['backUrl'], true, $ackParams);
        } else {
            // description
            $description = CMacrosResolverHelper::resolveEventDescription(zbx_array_merge($trigger, array('clock' => $trigger['lastchange'], 'ns' => '999999999')));
            // ack
            $ack = new CSpan(_('No events'), 'unknown');
        }
        // description
        if (!zbx_empty($trigger['url'])) {
            $description = new CLink($description, resolveTriggerUrl($trigger), null, null, true);
        } else {
            $description = new CSpan($description, 'pointer');
        }
        $description = new CCol($description, getSeverityStyle($trigger['priority']));
        if ($trigger['lastEvent']) {
            $description->setHint(make_popup_eventlist($trigger['triggerid'], $trigger['lastEvent']['eventid']), '', '', false);
        }
        // clock
        $clock = new CLink(zbx_date2str(_('d M Y H:i:s'), $trigger['lastchange']), 'events.php?triggerid=' . $trigger['triggerid'] . '&source=0&show_unknown=1&nav_time=' . $trigger['lastchange']);
        // actions
        $actionHint = $trigger['lastEvent'] && isset($actions[$trigger['lastEvent']['eventid']]) ? $actions[$trigger['lastEvent']['eventid']] : SPACE;
        $table->addRow(array(get_node_name_by_elid($trigger['triggerid']), $hostDiv, $description, $clock, zbx_date2age($trigger['lastchange']), $unknown, $ack, $actionHint));
    }
    // initialize blinking
    zbx_add_post_js('jqBlink.blink();');
    $script = new CJSScript(get_js("jQuery('#hat_lastiss_footer').html('" . _s('Updated: %s', zbx_date2str(_('H:i:s'))) . "')"));
    $infoDiv = new CDiv(_n('%1$d of %2$d issue is shown', '%1$d of %2$d issues are shown', count($triggers), $triggersTotalCount));
    $infoDiv->addStyle('text-align: right; padding-right: 3px;');
    return new CDiv(array($table, $infoDiv, $script));
}

function drawMapLabels(&$im, $map, $mapInfo, $resolveMacros = true)
{
    global $colors;
    if ($map['label_type'] == MAP_LABEL_TYPE_NOTHING && $map['label_format'] == SYSMAP_LABEL_ADVANCED_OFF) {
        return;
    }
    $selements = $map['selements'];
    $allStrings = '';
    $labelLines = array();
    $statusLines = array();
    foreach ($selements as $sid => $selement) {
        if (isset($selement['elementsubtype']) && $selement['elementsubtype'] == SYSMAP_ELEMENT_SUBTYPE_HOST_GROUP_ELEMENTS) {
            unset($selements[$sid]);
        }
    }
    // set label type and custom label text for all selements
    foreach ($selements as $selementId => $selement) {
        $selements[$selementId]['label_type'] = $map['label_type'];
        if ($map['label_format'] == SYSMAP_LABEL_ADVANCED_OFF) {
            continue;
        }
        switch ($selement['elementtype']) {
            case SYSMAP_ELEMENT_TYPE_HOST_GROUP:
                $selements[$selementId]['label_type'] = $map['label_type_hostgroup'];
                if ($map['label_type_hostgroup'] == MAP_LABEL_TYPE_CUSTOM) {
                    $selements[$selementId]['label'] = $map['label_string_hostgroup'];
                }
                break;
            case SYSMAP_ELEMENT_TYPE_HOST:
                $selements[$selementId]['label_type'] = $map['label_type_host'];
                if ($map['label_type_host'] == MAP_LABEL_TYPE_CUSTOM) {
                    $selements[$selementId]['label'] = $map['label_string_host'];
                }
                break;
            case SYSMAP_ELEMENT_TYPE_TRIGGER:
                $selements[$selementId]['label_type'] = $map['label_type_trigger'];
                if ($map['label_type_trigger'] == MAP_LABEL_TYPE_CUSTOM) {
                    $selements[$selementId]['label'] = $map['label_string_trigger'];
                }
                break;
            case SYSMAP_ELEMENT_TYPE_MAP:
                $selements[$selementId]['label_type'] = $map['label_type_map'];
                if ($map['label_type_map'] == MAP_LABEL_TYPE_CUSTOM) {
                    $selements[$selementId]['label'] = $map['label_string_map'];
                }
                break;
            case SYSMAP_ELEMENT_TYPE_IMAGE:
                $selements[$selementId]['label_type'] = $map['label_type_image'];
                if ($map['label_type_image'] == MAP_LABEL_TYPE_CUSTOM) {
                    $selements[$selementId]['label'] = $map['label_string_image'];
                }
                break;
        }
    }
    foreach ($selements as $selementId => $selement) {
        if (!isset($labelLines[$selementId])) {
            $labelLines[$selementId] = array();
        }
        if (!isset($statusLines[$selementId])) {
            $statusLines[$selementId] = array();
        }
        $msg = $resolveMacros ? CMacrosResolverHelper::resolveMapLabelMacrosAll($selement) : $selement['label'];
        $allStrings .= $msg;
        $msgs = explode("\n", $msg);
        foreach ($msgs as $msg) {
            $labelLines[$selementId][] = array('msg' => $msg);
        }
        $elementInfo = $mapInfo[$selementId];
        foreach (array('problem', 'unack', 'maintenance', 'ok', 'status') as $caption) {
            if (!isset($elementInfo['info'][$caption]) || zbx_empty($elementInfo['info'][$caption]['msg'])) {
                continue;
            }
            $statusLines[$selementId][] = array('msg' => $elementInfo['info'][$caption]['msg'], 'color' => $elementInfo['info'][$caption]['color']);
            $allStrings .= $elementInfo['info'][$caption]['msg'];
        }
    }
    $allLabelsSize = imageTextSize(8, 0, str_replace("\r", '', str_replace("\n", '', $allStrings)));
    $labelFontHeight = $allLabelsSize['height'];
    $labelFontBaseline = $allLabelsSize['baseline'];
    $elementsHostIds = array();
    foreach ($selements as $selement) {
        if ($selement['label_type'] != MAP_LABEL_TYPE_IP) {
            continue;
        }
        if ($selement['elementtype'] == SYSMAP_ELEMENT_TYPE_HOST) {
            $elementsHostIds[] = $selement['elementid'];
        }
    }
    if (!empty($elementsHostIds)) {
        $mapHosts = API::Host()->get(array('hostids' => $elementsHostIds, 'output' => array('hostid'), 'selectInterfaces' => API_OUTPUT_EXTEND));
        $mapHosts = zbx_toHash($mapHosts, 'hostid');
    }
    // draw
    foreach ($selements as $selementId => $selement) {
        if (empty($selement) || $selement['label_type'] == MAP_LABEL_TYPE_NOTHING) {
            continue;
        }
        $elementInfo = $mapInfo[$selementId];
        $hl_color = null;
        $st_color = null;
//.........这里部分代码省略.........

        }
    }
} else {
    if (preg_match('/^([a-z]+)\\[([=><]{1,2})\\]$/i', $exprType, $matches)) {
        $function = $matches[1];
        $operator = $matches[2];
        if (!isset($functions[$exprType])) {
            unset($function);
        }
    }
    // fetch item
    $item = API::Item()->get(['output' => ['itemid', 'hostid', 'name', 'key_', 'value_type'], 'selectHosts' => ['host', 'name'], 'itemids' => $itemId, 'webitems' => true, 'filter' => ['flags' => null]]);
    $item = reset($item);
}
if ($itemId) {
    $items = CMacrosResolverHelper::resolveItemNames([$item]);
    $item = $items[0];
    $itemValueType = $item['value_type'];
    $itemKey = $item['key_'];
    $itemHostData = reset($item['hosts']);
    $description = $itemHostData['name'] . NAME_DELIMITER . $item['name_expanded'];
} else {
    $itemKey = '';
    $description = '';
    $itemValueType = null;
}
if (is_null($paramType) && isset($functions[$exprType]['params']['M'])) {
    $paramType = is_array($functions[$exprType]['params']['M']) ? reset($functions[$exprType]['params']['M']) : $functions[$exprType]['params']['M'];
} elseif (is_null($paramType)) {
    $paramType = PARAM_TYPE_TIME;
}

    // render view
    $itemView = new CView('configuration.item.prototype.edit', $data);
    $itemView->render();
    $itemView->show();
} else {
    $sortField = getRequest('sort', CProfile::get('web.' . $page['file'] . '.sort', 'name'));
    $sortOrder = getRequest('sortorder', CProfile::get('web.' . $page['file'] . '.sortorder', ZBX_SORT_UP));
    CProfile::update('web.' . $page['file'] . '.sort', $sortField, PROFILE_TYPE_STR);
    CProfile::update('web.' . $page['file'] . '.sortorder', $sortOrder, PROFILE_TYPE_STR);
    $config = select_config();
    $data = ['form' => getRequest('form'), 'parent_discoveryid' => getRequest('parent_discoveryid'), 'hostid' => $discoveryRule['hostid'], 'sort' => $sortField, 'sortorder' => $sortOrder];
    $data['items'] = API::ItemPrototype()->get(['discoveryids' => $data['parent_discoveryid'], 'output' => API_OUTPUT_EXTEND, 'editable' => true, 'selectApplications' => API_OUTPUT_EXTEND, 'sortfield' => $sortField, 'limit' => $config['search_limit'] + 1]);
    foreach ($data['items'] as &$item) {
        if ($item['value_type'] == ITEM_VALUE_TYPE_STR || $item['value_type'] == ITEM_VALUE_TYPE_LOG || $item['value_type'] == ITEM_VALUE_TYPE_TEXT) {
            $item['trends'] = '';
        }
        if ($item['type'] == ITEM_TYPE_TRAPPER || $item['type'] == ITEM_TYPE_SNMPTRAP) {
            $item['delay'] = '';
        }
    }
    unset($item);
    $data['items'] = CMacrosResolverHelper::resolveItemNames($data['items']);
    order_result($data['items'], $sortField, $sortOrder);
    $url = (new CUrl('disc_prototypes.php'))->setArgument('parent_discoveryid', $data['parent_discoveryid']);
    $data['paging'] = getPagingLine($data['items'], $sortOrder, $url);
    // render view
    $itemView = new CView('configuration.item.prototype.list', $data);
    $itemView->render();
    $itemView->show();
}
require_once dirname(__FILE__) . '/include/page_footer.php';

 * Display
 */
if ($hostId > 0) {
    $data = [];
    // host scripts
    $data['hostScripts'] = API::Script()->getScriptsByHosts([$hostId]);
    // inventory info
    $data['tableTitles'] = getHostInventories();
    $data['tableTitles'] = zbx_toHash($data['tableTitles'], 'db_field');
    $inventoryFields = array_keys($data['tableTitles']);
    // overview tab
    $data['host'] = API::Host()->get(['output' => ['hostid', 'host', 'name', 'status', 'maintenance_status', 'maintenanceid', 'maintenance_type', 'description'], 'selectInterfaces' => API_OUTPUT_EXTEND, 'selectItems' => API_OUTPUT_COUNT, 'selectTriggers' => API_OUTPUT_COUNT, 'selectScreens' => API_OUTPUT_COUNT, 'selectInventory' => $inventoryFields, 'selectGraphs' => API_OUTPUT_COUNT, 'selectApplications' => API_OUTPUT_COUNT, 'selectDiscoveries' => API_OUTPUT_COUNT, 'selectHttpTests' => API_OUTPUT_COUNT, 'hostids' => $hostId, 'preservekeys' => true]);
    $data['host'] = reset($data['host']);
    unset($data['host']['inventory']['hostid']);
    // resolve macros
    $data['host']['interfaces'] = CMacrosResolverHelper::resolveHostInterfaces($data['host']['interfaces']);
    if ($data['host']['maintenance_status'] == HOST_MAINTENANCE_STATUS_ON) {
        $data['maintenances'] = API::Maintenance()->get(['maintenanceids' => [$data['host']['maintenanceid']], 'output' => ['name', 'description'], 'preservekeys' => true]);
    }
    // get permissions
    $userType = CWebUser::getType();
    if ($userType == USER_TYPE_SUPER_ADMIN) {
        $data['rwHost'] = true;
    } elseif ($userType == USER_TYPE_ZABBIX_ADMIN) {
        $rwHost = API::Host()->get(['output' => ['hostid'], 'hostids' => $hostId, 'editable' => true]);
        $data['rwHost'] = (bool) $rwHost;
    } else {
        $data['rwHost'] = false;
    }
    // view generation
    $hostinventoriesView = new CView('inventory.host.view', $data);

 /**
  * Init screen data.
  *
  * @param array		$options
  * @param array		$options['itemids']
  * @param string	$options['filter']
  * @param int		$options['filterTask']
  * @param int		$options['markColor']
  * @param boolean	$options['plaintext']
  * @param array		$options['items']
  * @param array		$options['item']
  */
 public function __construct(array $options = array())
 {
     parent::__construct($options);
     $this->resourcetype = SCREEN_RESOURCE_HISTORY;
     // mandatory
     $this->itemids = isset($options['itemids']) ? $options['itemids'] : null;
     $this->filter = isset($options['filter']) ? $options['filter'] : null;
     $this->filterTask = isset($options['filter_task']) ? $options['filter_task'] : null;
     $this->markColor = isset($options['mark_color']) ? $options['mark_color'] : MARK_COLOR_RED;
     // optional
     $this->items = isset($options['items']) ? $options['items'] : null;
     $this->item = isset($options['item']) ? $options['item'] : null;
     $this->plaintext = isset($options['plaintext']) ? $options['plaintext'] : false;
     if (empty($this->items)) {
         $this->items = API::Item()->get(array('nodeids' => get_current_nodeid(), 'itemids' => $this->itemids, 'webitems' => true, 'selectHosts' => array('name'), 'output' => array('itemid', 'hostid', 'name', 'key_', 'value_type', 'valuemapid'), 'preservekeys' => true));
         $this->items = CMacrosResolverHelper::resolveItemNames($this->items);
         $this->item = reset($this->items);
     }
 }

/**
 * Generate table for dashboard triggers popup.
 *
 * @see make_system_status
 *
 * @param array $triggers
 * @param string $backurl
 * @param array $actions
 * @param array $config
 *
 * @return CTableInfo
 */
function makeTriggersPopup(array $triggers, $backurl, array $actions, array $config)
{
    $popupTable = (new CTableInfo())->setHeader([_('Host'), _('Issue'), _('Age'), _('Info'), $config['event_ack_enable'] ? _('Ack') : null, _('Actions')]);
    CArrayHelper::sort($triggers, [['field' => 'lastchange', 'order' => ZBX_SORT_DOWN]]);
    foreach ($triggers as $trigger) {
        $description = CMacrosResolverHelper::resolveEventDescription(zbx_array_merge($trigger, array('clock' => $trigger['event']['clock'], 'ns' => $trigger['event']['ns'])));
        // unknown triggers
        $unknown = '';
        if ($trigger['state'] == TRIGGER_STATE_UNKNOWN) {
            $unknown = makeUnknownIcon($trigger['error']);
        }
        // ack
        if ($config['event_ack_enable']) {
            $ack = isset($trigger['event']['eventid']) ? getEventAckState($trigger['event'], $backurl) : (new CSpan(_('No events')))->addClass(ZBX_STYLE_GREY);
        } else {
            $ack = null;
        }
        // action
        $action = isset($trigger['event']['eventid']) && isset($actions[$trigger['event']['eventid']]) ? $actions[$trigger['event']['eventid']] : '';
        $popupTable->addRow([$trigger['hosts'][0]['name'], getSeverityCell($trigger['priority'], $config, $description), zbx_date2age($trigger['lastchange']), $unknown, $ack, (new CCol($action))->addClass(ZBX_STYLE_NOWRAP)]);
    }
    return $popupTable;
}

 /**
  * Process screen.
  *
  * @return CDiv (screen inside container)
  */
 public function get()
 {
     $output = [];
     $items = API::Item()->get(['output' => ['itemid', 'hostid', 'name', 'key_', 'value_type', 'valuemapid'], 'selectHosts' => ['name'], 'itemids' => $this->itemids, 'webitems' => true, 'preservekeys' => true]);
     $items = CMacrosResolverHelper::resolveItemNames($items);
     $stime = zbxDateToTime($this->timeline['stime']);
     $firstItem = reset($items);
     $iv_string = [ITEM_VALUE_TYPE_LOG => 1, ITEM_VALUE_TYPE_TEXT => 1];
     $iv_numeric = [ITEM_VALUE_TYPE_FLOAT => 1, ITEM_VALUE_TYPE_UINT64 => 1];
     if ($this->action == HISTORY_VALUES || $this->action == HISTORY_LATEST) {
         $options = ['history' => $firstItem['value_type'], 'itemids' => $this->itemids, 'output' => API_OUTPUT_EXTEND, 'sortorder' => ZBX_SORT_DOWN];
         if ($this->action == HISTORY_LATEST) {
             $options['limit'] = 500;
         } elseif ($this->action == HISTORY_VALUES) {
             $config = select_config();
             // interval start value is non-inclusive, hence the + 1 second
             $options['time_from'] = $stime + 1;
             $options['time_till'] = $stime + $this->timeline['period'];
             $options['limit'] = $config['search_limit'];
         }
         // text log
         if (isset($iv_string[$firstItem['value_type']])) {
             $isManyItems = count($items) > 1;
             $useLogItem = $firstItem['value_type'] == ITEM_VALUE_TYPE_LOG;
             $useEventLogItem = strpos($firstItem['key_'], 'eventlog[') === 0;
             if (empty($this->plaintext)) {
                 $historyTable = (new CTableInfo())->setHeader([(new CColHeader(_('Timestamp')))->addClass(ZBX_STYLE_CELL_WIDTH), $isManyItems ? _('Item') : null, $useLogItem ? (new CColHeader(_('Local time')))->addClass(ZBX_STYLE_CELL_WIDTH) : null, $useEventLogItem && $useLogItem ? (new CColHeader(_('Source')))->addClass(ZBX_STYLE_CELL_WIDTH) : null, $useEventLogItem && $useLogItem ? (new CColHeader(_('Severity')))->addClass(ZBX_STYLE_CELL_WIDTH) : null, $useEventLogItem && $useLogItem ? (new CColHeader(_('Event ID')))->addClass(ZBX_STYLE_CELL_WIDTH) : null, _('Value')]);
             }
             if ($this->filter !== '' && in_array($this->filterTask, [FILTER_TASK_SHOW, FILTER_TASK_HIDE])) {
                 $options['search'] = ['value' => $this->filter];
                 if ($this->filterTask == FILTER_TASK_HIDE) {
                     $options['excludeSearch'] = 1;
                 }
             }
             $options['sortfield'] = 'id';
             $historyData = API::History()->get($options);
             foreach ($historyData as $data) {
                 $data['value'] = rtrim($data['value'], " \t\r\n");
                 if (empty($this->plaintext)) {
                     $item = $items[$data['itemid']];
                     $host = reset($item['hosts']);
                     $color = null;
                     if ($this->filter !== '') {
                         $haystack = mb_strtolower($data['value']);
                         $needle = mb_strtolower($this->filter);
                         $pos = mb_strpos($haystack, $needle);
                         if ($pos !== false && $this->filterTask == FILTER_TASK_MARK) {
                             $color = $this->markColor;
                         } elseif ($pos === false && $this->filterTask == FILTER_TASK_INVERT_MARK) {
                             $color = $this->markColor;
                         }
                         switch ($color) {
                             case MARK_COLOR_RED:
                                 $color = ZBX_STYLE_RED;
                                 break;
                             case MARK_COLOR_GREEN:
                                 $color = ZBX_STYLE_GREEN;
                                 break;
                             case MARK_COLOR_BLUE:
                                 $color = ZBX_STYLE_BLUE;
                                 break;
                         }
                     }
                     $row = [];
                     $row[] = (new CCol(zbx_date2str(DATE_TIME_FORMAT_SECONDS, $data['clock'])))->addClass(ZBX_STYLE_NOWRAP)->addClass($color);
                     if ($isManyItems) {
                         $row[] = (new CCol($host['name'] . NAME_DELIMITER . $item['name_expanded']))->addClass($color);
                     }
                     if ($useLogItem) {
                         $row[] = $data['timestamp'] != 0 ? (new CCol(zbx_date2str(DATE_TIME_FORMAT_SECONDS, $data['timestamp'])))->addClass(ZBX_STYLE_NOWRAP)->addClass($color) : '';
                         // if this is a eventLog item, showing additional info
                         if ($useEventLogItem) {
                             $row[] = (new CCol($data['source']))->addClass(ZBX_STYLE_NOWRAP)->addClass($color);
                             $row[] = $data['severity'] != 0 ? (new CCol(get_item_logtype_description($data['severity'])))->addClass(ZBX_STYLE_NOWRAP)->addClass(get_item_logtype_style($data['severity'])) : '';
                             $row[] = $data['logeventid'] != 0 ? (new CCol($data['logeventid']))->addClass(ZBX_STYLE_NOWRAP)->addClass($color) : '';
                         }
                     }
                     $row[] = (new CCol(new CPre(zbx_nl2br($data['value']))))->addClass($color);
                     $historyTable->addRow($row);
                 } else {
                     $output[] = zbx_date2str(DATE_TIME_FORMAT_SECONDS, $data['clock']) . ' ' . $data['clock'] . ' ' . htmlspecialchars($data['value']);
                 }
             }
             if (empty($this->plaintext)) {
                 $output[] = $historyTable;
             }
         } else {
             if (empty($this->plaintext)) {
                 $historyTable = (new CTableInfo())->setHeader([(new CColHeader(_('Timestamp')))->addClass(ZBX_STYLE_CELL_WIDTH), _('Value')]);
             }
             $options['sortfield'] = ['itemid', 'clock'];
             $historyData = API::History()->get($options);
             foreach ($historyData as $data) {
                 $item = $items[$data['itemid']];
                 $value = rtrim($data['value'], " \t\r\n");
//.........这里部分代码省略.........

/**
 * Generate table for dashboard triggers popup.
 *
 * @see make_system_status
 *
 * @param array $triggers
 * @param array $ackParams
 * @param array $actions
 * @param array $config
 *
 * @return CTableInfo
 */
function makeTriggersPopup(array $triggers, array $ackParams, array $actions, array $config)
{
    $popupTable = new CTableInfo();
    $popupTable->setAttribute('style', 'width: 400px;');
    $popupTable->setHeader(array(_('Host'), _('Issue'), _('Age'), _('Info'), $config['event_ack_enable'] ? _('Ack') : null, _('Actions')));
    CArrayHelper::sort($triggers, array(array('field' => 'lastchange', 'order' => ZBX_SORT_DOWN)));
    $triggers = CMacrosResolverHelper::resolveTriggerNames($triggers);
    foreach ($triggers as $trigger) {
        // unknown triggers
        $unknown = SPACE;
        if ($trigger['state'] == TRIGGER_STATE_UNKNOWN) {
            $unknown = new CDiv(SPACE, 'status_icon iconunknown');
            $unknown->setHint($trigger['error'], 'on');
        }
        // ack
        if ($config['event_ack_enable']) {
            $ack = isset($trigger['event']['eventid']) ? getEventAckState($trigger['event'], true, true, $ackParams) : _('No events');
        } else {
            $ack = null;
        }
        // action
        $action = isset($trigger['event']['eventid']) && isset($actions[$trigger['event']['eventid']]) ? $actions[$trigger['event']['eventid']] : _('-');
        $popupTable->addRow(array($trigger['hosts'][0]['name'], getSeverityCell($trigger['priority'], $trigger['description']), zbx_date2age($trigger['lastchange']), $unknown, $ack, $action));
    }
    return $popupTable;
}