basic tabs system

src/components/channeltabswitcherhandy.cpp

@@ -0,0 +1,58 @@
+#ifdef WITH_LIBHANDY
+
+    #include "channeltabswitcherhandy.hpp"
+    #include "abaddon.hpp"
+
+void selected_page_notify_cb(HdyTabView *view, GParamSpec *pspec, ChannelTabSwitcherHandy *switcher) {
+    auto *page = hdy_tab_view_get_selected_page(view);
+    if (auto it = switcher->m_pages_rev.find(page); it != switcher->m_pages_rev.end()) {
+        switcher->m_signal_channel_switched_to.emit(it->second);
+    }
+}
+
+ChannelTabSwitcherHandy::ChannelTabSwitcherHandy() {
+    m_tab_bar = hdy_tab_bar_new();
+    m_tab_bar_wrapped = Glib::wrap(GTK_WIDGET(m_tab_bar));
+    m_tab_view = hdy_tab_view_new();
+    m_tab_view_wrapped = Glib::wrap(GTK_WIDGET(m_tab_view));
+
+    g_signal_connect(m_tab_view, "notify::selected-page", G_CALLBACK(selected_page_notify_cb), this);
+
+    hdy_tab_bar_set_view(m_tab_bar, m_tab_view);
+    add(*m_tab_bar_wrapped);
+    m_tab_bar_wrapped->show();
+}
+
+void ChannelTabSwitcherHandy::AddChannelTab(Snowflake id) {
+    auto &discord = Abaddon::Get().GetDiscordClient();
+    const auto channel = discord.GetChannel(id);
+    if (!channel.has_value()) return;
+
+    auto *dummy = Gtk::make_managed<Gtk::Box>(); // minimal
+    auto *page = hdy_tab_view_append(m_tab_view, GTK_WIDGET(dummy->gobj()));
+
+    hdy_tab_page_set_title(page, ("#" + *channel->Name).c_str());
+
+    m_pages[id] = page;
+    m_pages_rev[page] = id;
+}
+
+void ChannelTabSwitcherHandy::ReplaceActiveTab(Snowflake id) {
+    auto *page = hdy_tab_view_get_selected_page(m_tab_view);
+    if (page == nullptr) {
+        AddChannelTab(id);
+    } else {
+        auto &discord = Abaddon::Get().GetDiscordClient();
+        const auto channel = discord.GetChannel(id);
+        if (!channel.has_value()) return;
+
+        hdy_tab_page_set_title(page, ("#" + *channel->Name).c_str());
+        m_pages_rev[page] = id;
+    }
+}
+
+ChannelTabSwitcherHandy::type_signal_channel_switched_to ChannelTabSwitcherHandy::signal_channel_switched_to() {
+    return m_signal_channel_switched_to;
+}
+
+#endif