3 files changed, 128 insertions, 0 deletions
diff --git a/src/completion/CommandsModel.cpp b/src/completion/CommandsModel.cpp
new file mode 100644
index 0000000..0f66233
--- /dev/null
+++ b/src/completion/CommandsModel.cpp
@@ -0,0 +1,42 @@
+#include <QAbstractListModel>
+#include <QWidget>
+#include <QtCore>
+
+#include "completion/CommandsModel.hpp"
+
+CommandsModel::CommandsModel(QObject *parent) : QAbstractListModel(parent) {
+  items = commands;
+}
+
+QVariant CommandsModel::data(const QModelIndex &index, int role) const {
+  if (!index.isValid() || index.row() >= items.size())
+    return QVariant();
+
+  const Command &item = items.at(index.row());
+
+  if (role == Qt::DisplayRole)
+    return item.name;
+  else if (role == Qt::ToolTipRole)
+    return item.description;
+  else if (role == Qt::UserRole)
+    return item.description;
+
+  return QVariant();
+}
+
+QHash<int, QByteArray> CommandsModel::roleNames() const {
+  QHash<int, QByteArray> roles;
+  roles[Qt::DisplayRole] = "name";
+  roles[Qt::UserRole] = "description";
+  return roles;
+}
+
+int CommandsModel::rowCount(const QModelIndex &parent) const {
+  Q_UNUSED(parent);
+  return items.size();
+}
+
+int CommandsModel::columnCount(const QModelIndex &parent) const {
+  Q_UNUSED(parent);
+  return 2; // name + description
+}
diff --git a/src/completion/Completer.cpp b/src/completion/Completer.cpp
new file mode 100644
index 0000000..96a363e
--- /dev/null
+++ b/src/completion/Completer.cpp
@@ -0,0 +1,46 @@
+#include <QAbstractItemView>
+#include <QHeaderView>
+#include <QLineEdit>
+#include <QTreeView>
+#include <QWidget>
+#include <QtCore>
+
+#include "completion/Completer.hpp"
+#include "completion/CompleterDelegate.hpp"
+
+const char *completerStyles = R"(
+  background-color: #111;
+  color: #fff;
+  border-radius: 0;
+)";
+
+Completer::Completer(QObject *parent) : QCompleter(parent) {
+  setFilterMode(Qt::MatchContains);
+  setCaseSensitivity(Qt::CaseInsensitive);
+  setCompletionRole(Qt::DisplayRole);
+  setCompletionMode(QCompleter::PopupCompletion);
+
+  auto treeView = new QTreeView();
+  setPopup(treeView);
+  treeView->setStyleSheet(completerStyles);
+  treeView->setItemDelegate(new CompleterDelegate(treeView));
+  treeView->setRootIsDecorated(false);
+  treeView->setUniformRowHeights(true);
+  treeView->header()->hide();
+  treeView->setColumnWidth(1, 160);
+
+  complete();
+}
+
+// bool Completer::eventFilter(QObject *watched, QEvent *event) {
+//   auto isFocusIn = event->type() == QEvent::FocusIn;
+//   auto isKeyRelease = event->type() == QEvent::KeyRelease;
+//
+//   QLineEdit *lineEdit = qobject_cast<QLineEdit *>(watched);
+//   bool isInputEmpty = lineEdit && lineEdit->text().isEmpty();
+//
+//   if ((isFocusIn || isKeyRelease) && isInputEmpty)
+//     complete();
+//
+//   return QCompleter::eventFilter(watched, event);
+// }
diff --git a/src/completion/CompleterDelegate.cpp b/src/completion/CompleterDelegate.cpp
new file mode 100644
index 0000000..a35305f
--- /dev/null
+++ b/src/completion/CompleterDelegate.cpp
@@ -0,0 +1,40 @@
+#include <QPainter>
+#include <QWidget>
+#include <QtCore/qlogging.h>
+#include <QtCore/qnamespace.h>
+#include <QtCore>
+
+#include "completion/CompleterDelegate.hpp"
+
+CompleterDelegate::CompleterDelegate(QObject *parent)
+    : QStyledItemDelegate(parent) {}
+
+void CompleterDelegate::paint(QPainter *painter,
+                              const QStyleOptionViewItem &option,
+                              const QModelIndex &index) const {
+  painter->save();
+
+  // Style
+  if (option.state & QStyle::State_Selected) {
+    painter->fillRect(option.rect, QColor("#aaa"));
+    painter->setPen(Qt::black);
+  } else {
+    painter->fillRect(option.rect, QColor("#111"));
+    painter->setPen(Qt::white);
+  }
+
+  // Draw text
+  QString text;
+  QRect rect;
+  if (index.column() == 0) {
+    text = index.data(Qt::DisplayRole).toString();
+    rect = option.rect.adjusted(5, 0, 0, 0);
+    painter->drawText(rect, Qt::AlignLeft | Qt::AlignVCenter, text);
+  } else if (index.column() == 1) {
+    text = index.data(Qt::UserRole).toString();
+    rect = option.rect.adjusted(0, 0, -5, 0);
+    painter->drawText(rect, Qt::AlignLeft | Qt::AlignVCenter, text);
+  }
+
+  painter->restore();
+}