rudimentary chat

2026-08-15 05:19:58 +00:00 · 2020-08-20 03:19:16 -04:00
parent 4b903bbd3e
commit a201d5905a
14 changed files with 426 additions and 7 deletions
--- a/components/chatwindow.cpp
+++ b/components/chatwindow.cpp
@@ -0,0 +1,164 @@
+#include "chatwindow.hpp"
+#include <map>
+
+ChatWindow::ChatWindow() {
+    m_update_dispatcher.connect(sigc::mem_fun(*this, &ChatWindow::SetMessagesInternal));
+
+    m_main = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_VERTICAL));
+    m_listbox = Gtk::manage(new Gtk::ListBox);
+    m_viewport = Gtk::manage(new Gtk::Viewport(Gtk::Adjustment::create(0, 0, 0, 0, 0, 0), Gtk::Adjustment::create(0, 0, 0, 0, 0, 0)));
+    m_scroll = Gtk::manage(new Gtk::ScrolledWindow);
+    m_input = Gtk::manage(new Gtk::TextView);
+    m_entry_scroll = Gtk::manage(new Gtk::ScrolledWindow);
+
+    m_main->set_hexpand(true);
+    m_main->set_vexpand(true);
+    m_main->show();
+
+    m_scroll->set_can_focus(false);
+    m_scroll->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS);
+    m_scroll->show();
+
+    m_listbox->signal_size_allocate().connect([this](Gtk::Allocation &) {
+        ScrollToBottom();
+    });
+
+    m_listbox->set_selection_mode(Gtk::SELECTION_NONE);
+    m_listbox->set_hexpand(true);
+    m_listbox->set_vexpand(true);
+    m_listbox->set_focus_hadjustment(m_scroll->get_hadjustment());
+    m_listbox->set_focus_vadjustment(m_scroll->get_vadjustment());
+    m_listbox->show();
+
+    m_viewport->set_can_focus(false);
+    m_viewport->set_valign(Gtk::ALIGN_END);
+    m_viewport->set_vscroll_policy(Gtk::SCROLL_NATURAL);
+    m_viewport->set_shadow_type(Gtk::SHADOW_NONE);
+    m_viewport->show();
+
+    m_input->set_hexpand(true);
+    m_input->set_wrap_mode(Gtk::WRAP_WORD_CHAR);
+    m_input->show();
+
+    m_entry_scroll->set_max_content_height(150);
+    m_entry_scroll->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+    m_entry_scroll->add(*m_input);
+    m_entry_scroll->show();
+
+    m_viewport->add(*m_listbox);
+    m_scroll->add(*m_viewport);
+    m_main->add(*m_scroll);
+    m_main->add(*m_entry_scroll);
+}
+
+Gtk::Widget *ChatWindow::GetRoot() const {
+    return m_main;
+}
+
+void ChatWindow::SetActiveChannel(Snowflake id) {
+    m_active_channel = id;
+}
+
+Snowflake ChatWindow::GetActiveChannel() const {
+    return m_active_channel;
+}
+
+Gtk::ListBoxRow *ChatWindow::CreateChatEntryComponentText(const MessageData *data) {
+    auto *row = Gtk::manage(new Gtk::ListBoxRow);
+    auto *main_box = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL));
+    auto *sub_box = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_VERTICAL));
+    auto *meta_box = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL));
+    auto *author = Gtk::manage(new Gtk::Label);
+    auto *timestamp = Gtk::manage(new Gtk::Label);
+    auto *text = Gtk::manage(new Gtk::TextView);
+
+    text->set_can_focus(false);
+    text->set_editable(false);
+    text->set_wrap_mode(Gtk::WRAP_WORD_CHAR);
+    text->set_halign(Gtk::ALIGN_FILL);
+    text->set_hexpand(true);
+    text->get_buffer()->set_text(data->Content);
+    text->show();
+
+    author->set_markup("<span weight=\"bold\">" + Glib::Markup::escape_text(data->Author.Username) + "</span>");
+    author->set_single_line_mode(true);
+    author->set_line_wrap(false);
+    author->set_ellipsize(Pango::ELLIPSIZE_END);
+    author->set_xalign(0.f);
+    author->show();
+
+    timestamp->set_text(data->Timestamp);
+    timestamp->set_opacity(0.5);
+    timestamp->set_single_line_mode(true);
+    timestamp->set_margin_start(12);
+    timestamp->show();
+
+    main_box->set_hexpand(true);
+    main_box->set_vexpand(true);
+    main_box->show();
+
+    meta_box->show();
+    sub_box->show();
+
+    meta_box->add(*author);
+    meta_box->add(*timestamp);
+    sub_box->add(*meta_box);
+    sub_box->add(*text);
+    main_box->add(*sub_box);
+    row->add(*main_box);
+    row->set_margin_bottom(8);
+
+    row->show();
+
+    return row;
+}
+
+Gtk::ListBoxRow *ChatWindow::CreateChatEntryComponent(const MessageData *data) {
+    if (data->Type == MessageType::DEFAULT && data->Content.size() > 0)
+        return CreateChatEntryComponentText(data);
+
+    return nullptr;
+}
+
+void ChatWindow::SetMessages(std::unordered_set<const MessageData *> msgs) {
+    std::scoped_lock<std::mutex> guard(m_update_mutex);
+    m_update_queue.push(msgs);
+    m_update_dispatcher.emit();
+}
+
+void ChatWindow::ScrollToBottom() {
+    auto x = m_scroll->get_vadjustment();
+    x->set_value(x->get_upper());
+}
+
+void ChatWindow::SetMessagesInternal() {
+    auto children = m_listbox->get_children();
+    auto it = children.begin();
+
+    while (it != children.end()) {
+        delete *it;
+        it++;
+    }
+
+    std::unordered_set<const MessageData *> *msgs;
+    {
+        std::scoped_lock<std::mutex> guard(m_update_mutex);
+        msgs = &m_update_queue.front();
+    }
+
+    // sort
+    std::map<Snowflake, const MessageData *> sorted_messages;
+    for (const auto msg : *msgs)
+        sorted_messages[msg->ID] = msg;
+
+    for (const auto &[id, msg] : sorted_messages) {
+        auto *row = CreateChatEntryComponent(msg);
+        if (row != nullptr)
+            m_listbox->add(*row);
+    }
+
+    {
+        std::scoped_lock<std::mutex> guard(m_update_mutex);
+        m_update_queue.pop();
+    }
+}