Added in:<channels> search predicate (#2634)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/widgets/helper/SearchPopup.cpp

@@ -8,6 +8,7 @@
 #include "common/Channel.hpp"
 #include "messages/Message.hpp"
 #include "messages/search/AuthorPredicate.hpp"
+#include "messages/search/ChannelPredicate.hpp"
 #include "messages/search/LinkPredicate.hpp"
 #include "messages/search/SubstringPredicate.hpp"
 #include "util/Shortcut.hpp"
@@ -164,9 +165,10 @@ std::vector<std::unique_ptr<MessagePredicate>> SearchPopup::parsePredicates(
 {
     static QRegularExpression predicateRegex(R"(^(\w+):([\w,]+)$)");
 
-    auto predicates = std::vector<std::unique_ptr<MessagePredicate>>();
+    std::vector<std::unique_ptr<MessagePredicate>> predicates;
     auto words = input.split(' ', QString::SkipEmptyParts);
-    auto authors = QStringList();
+    QStringList authors;
+    QStringList channels;
 
     for (auto it = words.begin(); it != words.end();)
     {
@@ -186,6 +188,10 @@ std::vector<std::unique_ptr<MessagePredicate>> SearchPopup::parsePredicates(
             {
                 predicates.push_back(std::make_unique<LinkPredicate>());
             }
+            else if (name == "in")
+            {
+                channels.append(value);
+            }
             else
             {
                 remove = false;
@@ -203,6 +209,9 @@ std::vector<std::unique_ptr<MessagePredicate>> SearchPopup::parsePredicates(
     if (!authors.empty())
         predicates.push_back(std::make_unique<AuthorPredicate>(authors));
 
+    if (!channels.empty())
+        predicates.push_back(std::make_unique<ChannelPredicate>(channels));
+
     if (!words.empty())
         predicates.push_back(
             std::make_unique<SubstringPredicate>(words.join(" ")));