Support _filter and _scope as GET arguments for opening mail UI (#5825)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Support _filter and _scope as GET arguments for opening mail UI (#5825)
 - Support for IMAP folders that cannot contain both folders and messages (#5057)
 - Added .user.ini file for php-fpm (#5846)
 - Email Resent (Bounce) feature (#4985)

program/js/app.js

@@ -249,7 +249,11 @@ function rcube_webmail()
           this.enable_command('set-listmode', this.env.threads && !this.is_multifolder_listing());
 
           // load messages
-          this.command('list');
+          var searchfilter = $(this.gui_objects.search_filter).val();
+          if (searchfilter && searchfilter != 'ALL')
+            this.filter_mailbox(searchfilter);
+          else
+            this.command('list');
 
           $(this.gui_objects.qsearchbox).val(this.env.search_text).focusin(function() { ref.message_list.blur(); });
         }
@@ -2506,14 +2510,16 @@ function rcube_webmail()
     if (this.filter_disabled)
       return;
 
-    var lock = this.set_busy(true, 'searching');
+    var params = this.search_params(false, filter),
+      lock = this.set_busy(true, 'searching');
 
     this.clear_message_list();
 
     // reset vars
     this.env.current_page = 1;
     this.env.search_filter = filter;
-    this.http_request('search', this.search_params(false, filter), lock);
+    this.http_request('search', params, lock);
+    this.update_state({_mbox: params._mbox, _filter: filter, _scope: params._scope});
   };
 
   // reload the current message listing

program/steps/mail/func.inc

@@ -66,8 +66,10 @@ if (empty($RCMAIL->action) || $RCMAIL->action == 'list') {
     if (empty($RCMAIL->action)) {
         $OUTPUT->set_env('search_mods', rcmail_search_mods());
 
-        if (!empty($_SESSION['search_scope']))
-            $OUTPUT->set_env('search_scope', $_SESSION['search_scope']);
+        $scope = rcube_utils::get_input_value('_scope', rcube_utils::INPUT_GET) ?: $_SESSION['search_scope'];
+        if ($scope && preg_match('/^(all|sub)$/i', $scope)) {
+            $OUTPUT->set_env('search_scope', strtolower($scope));
+        }
 
         rcmail_list_pagetitle();
     }
@@ -2016,7 +2018,13 @@ function rcmail_search_filter($attrib)
 
     $RCMAIL->output->add_gui_object('search_filter', $attrib['id']);
 
-    return $select->show($_REQUEST['_search'] ? $_SESSION['search_filter'] : 'ALL');
+    $selected = rcube_utils::get_input_value('_filter', rcube_utils::INPUT_GET);
+
+    if (!$selected && $_REQUEST['_search']) {
+        $selected = $_SESSION['search_filter'];
+    }
+
+    return $select->show($selected ?: 'ALL');
 }
 
 function rcmail_search_interval($attrib)