Advanced channel filters (#1748)

Adds custom channel filters complete with their own mini-language. Filters can be created in settings, and applied by clicking the three dots to open the Split menu and selecting "Set filters".

src/widgets/settingspages/FiltersPage.cpp

@@ -0,0 +1,111 @@
+#include "FiltersPage.hpp"
+
+#include "controllers/filters/FilterModel.hpp"
+#include "singletons/Settings.hpp"
+#include "util/LayoutCreator.hpp"
+#include "widgets/dialogs/ChannelFilterEditorDialog.hpp"
+#include "widgets/helper/EditableModelView.hpp"
+
+#include <QTableView>
+
+#define FILTERS_DOCUMENTATION "https://wiki.chatterino.com/Filters/"
+
+namespace chatterino {
+
+FiltersPage::FiltersPage()
+{
+    LayoutCreator<FiltersPage> layoutCreator(this);
+    auto layout = layoutCreator.setLayoutType<QVBoxLayout>();
+
+    layout.emplace<QLabel>(
+        "Selectively display messages in Splits using channel filters. Set "
+        "filters under a Split menu.");
+    EditableModelView *view =
+        layout
+            .emplace<EditableModelView>(
+                (new FilterModel(nullptr))
+                    ->initialized(&getSettings()->filterRecords))
+            .getElement();
+
+    view->setTitles({"Name", "Filter", "Valid"});
+    view->getTableView()->horizontalHeader()->setSectionResizeMode(
+        QHeaderView::Interactive);
+    view->getTableView()->horizontalHeader()->setSectionResizeMode(
+        1, QHeaderView::Stretch);
+
+    QTimer::singleShot(1, [view] {
+        view->getTableView()->resizeColumnsToContents();
+        view->getTableView()->setColumnWidth(0, 150);
+        view->getTableView()->setColumnWidth(2, 125);
+    });
+
+    view->addButtonPressed.connect([] {
+        ChannelFilterEditorDialog d;
+        if (d.exec() == QDialog::Accepted)
+        {
+            getSettings()->filterRecords.append(
+                std::make_shared<FilterRecord>(d.getTitle(), d.getFilter()));
+        }
+    });
+
+    auto quickAddButton = new QPushButton("Quick Add");
+    QObject::connect(quickAddButton, &QPushButton::pressed, [] {
+        getSettings()->filterRecords.append(std::make_shared<FilterRecord>(
+            "My filter", "message.content contains \"hello\""));
+    });
+    view->addCustomButton(quickAddButton);
+
+    QObject::connect(view->getTableView(), &QTableView::clicked,
+                     [this, view](const QModelIndex &clicked) {
+                         this->tableCellClicked(clicked, view);
+                     });
+
+    auto filterHelpLabel =
+        new QLabel(QString("<a href='%1'><span "
+                           "style='color:#99f'>filter info</span></a>")
+                       .arg(FILTERS_DOCUMENTATION));
+    filterHelpLabel->setOpenExternalLinks(true);
+    view->addCustomButton(filterHelpLabel);
+
+    layout.append(
+        this->createCheckBox("Do not filter my own messages",
+                             getSettings()->excludeUserMessagesFromFilter));
+}
+
+void FiltersPage::onShow()
+{
+    return;
+}
+
+void FiltersPage::tableCellClicked(const QModelIndex &clicked,
+                                   EditableModelView *view)
+{
+    // valid column
+    if (clicked.column() == 2)
+    {
+        QMessageBox popup;
+
+        filterparser::FilterParser f(
+            view->getModel()->data(clicked.siblingAtColumn(1)).toString());
+
+        if (f.valid())
+        {
+            popup.setIcon(QMessageBox::Icon::Information);
+            popup.setWindowTitle("Valid filter");
+            popup.setText("Filter is valid");
+            popup.setInformativeText(
+                QString("Parsed as:\n%1").arg(f.filterString()));
+        }
+        else
+        {
+            popup.setIcon(QMessageBox::Icon::Warning);
+            popup.setWindowTitle("Invalid filter");
+            popup.setText(QString("Parsing errors occured:"));
+            popup.setInformativeText(f.errors().join("\n"));
+        }
+
+        popup.exec();
+    }
+}
+
+}  // namespace chatterino

src/widgets/settingspages/FiltersPage.hpp

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "widgets/helper/EditableModelView.hpp"
+#include "widgets/settingspages/SettingsPage.hpp"
+
+#include <QStringListModel>
+
+class QVBoxLayout;
+
+namespace chatterino {
+
+class FiltersPage : public SettingsPage
+{
+public:
+    FiltersPage();
+
+    void onShow() final;
+
+private:
+    void tableCellClicked(const QModelIndex &clicked, EditableModelView *view);
+
+    QStringListModel userListModel_;
+};
+
+}  // namespace chatterino