Add keymap evaluation with strict event filter

6 files changed, 116 insertions, 11 deletions

diff --git a/include/keymap/KeySeqParser.hpp b/include/keymap/KeySeqParser.hpp
index aefcb62..fac2546 100644
--- a/include/keymap/KeySeqParser.hpp
+++ b/include/keymap/KeySeqParser.hpp
@@ -2,6 +2,7 @@
 
 #include <QtCore/qnamespace.h>
 #include <QtCore>
+#include <cmath>
 
 struct KeyChord {
   Qt::KeyboardModifiers mod;
@@ -9,11 +10,34 @@ struct KeyChord {
 };
 bool operator==(const KeyChord a, const KeyChord b);
 
+typedef QList<KeyChord> KeySequence;
+
+enum KeyMatchType {
+  NoMatch,
+  Match,
+  Pending,
+};
+
 class KeySeqParser {
 public:
+  static const KeyMatchType keySequenceMatch(const KeySequence target,
+                                             const KeySequence current) {
+    for (int i = 0; i < target.length(); i++) {
+      if (current.length() <= i)
+        return KeyMatchType::Pending;
+
+      if (target[i].key != current[i].key ||
+          !target[i].mod.testFlags(current[i].mod))
+        return KeyMatchType::NoMatch;
+    }
+
+    return KeyMatchType::Match;
+  }
+
+public:
   KeySeqParser();
 
-  QList<KeyChord> parse(QString keySequence);
+  KeySequence parse(QString keySequence);
 
 private:
   Qt::Key parseKey(QString keyName);
diff --git a/include/keymap/KeymapEvaluator.hpp b/include/keymap/KeymapEvaluator.hpp
new file mode 100644
index 0000000..ed468d2
--- /dev/null
+++ b/include/keymap/KeymapEvaluator.hpp
@@ -0,0 +1,71 @@
+#pragma once
+
+#include "keymap/KeySeqParser.hpp"
+#include <QWidget>
+#include <QtCore/qmap.h>
+#include <QtCore/qnamespace.h>
+#include <QtCore>
+#include <algorithm>
+
+struct KeyMap {
+  KeySequence keySequence;
+  QString action; // TODO: string for testing
+};
+
+class KeymapEvaluator : public QObject {
+  Q_OBJECT
+
+public:
+  KeymapEvaluator();
+
+  void addKeymap(QString mode, QString key, QString action) {
+    if (!modalKeys.contains(mode))
+      modalKeys.insert(mode, {});
+
+    auto keySeq = keySeqParser.parse(key);
+    // TODO: Add actions
+    modalKeys[mode].append((KeyMap){.keySequence = keySeq, .action = action});
+  }
+
+  void evaluate(Qt::KeyboardModifiers modifiers, Qt::Key key) {
+    if (key == Qt::Key_Control || key == Qt::Key_Shift || key == Qt::Key_Meta ||
+        key == Qt::Key_Alt)
+      return;
+
+    auto keymaps = currentModeKeys();
+    auto foundPendingMatches = false;
+
+    activeKeySequence.append((KeyChord){.mod = modifiers, .key = key});
+
+    for (auto &keymap : *keymaps) {
+      auto matchType =
+          KeySeqParser::keySequenceMatch(keymap.keySequence, activeKeySequence);
+
+      if (matchType == KeyMatchType::Match) {
+        qDebug() << "Matched!" << keymap.action;
+        activeKeySequence.clear();
+        return;
+      } else if (matchType == KeyMatchType::Pending) {
+        foundPendingMatches = true;
+      }
+    }
+
+    if (!foundPendingMatches)
+      activeKeySequence.clear();
+  }
+
+private:
+  const QList<KeyMap> *currentModeKeys() {
+    if (!modalKeys.contains(currentMode))
+      return new QList<KeyMap>();
+
+    return &modalKeys[currentMode];
+  }
+
+private:
+  QMap<QString, QList<KeyMap>> modalKeys;
+  KeySeqParser keySeqParser;
+  QString currentMode = "default";
+
+  KeySequence activeKeySequence;
+};
diff --git a/include/widgets/InputLine.hpp b/include/widgets/InputLine.hpp
index d5f65be..a382ff8 100644
--- a/include/widgets/InputLine.hpp
+++ b/include/widgets/InputLine.hpp
@@ -24,8 +24,6 @@ public:
   DELEGATE(input, text, getInputText)
   DELEGATE(promptPrefix, text, prompt)
 
-  // bool eventFilter(QObject *obj, QEvent *event) override;
-
 signals:
   void submitted(QString text);
   void cancelled();
diff --git a/include/widgets/MainWindow.hpp b/include/widgets/MainWindow.hpp
index 559a119..3e3a6d6 100644
--- a/include/widgets/MainWindow.hpp
+++ b/include/widgets/MainWindow.hpp
@@ -1,12 +1,10 @@
 #pragma once
 
 #include <QMainWindow>
-#include <QObject>
-#include <QStackedLayout>
-#include <QWebEngineView>
 
 #include "Configuration.hpp"
 #include "InputMediator.hpp"
+#include "keymap/KeymapEvaluator.hpp"
 
 class MainWindow : public QMainWindow {
 public:
@@ -14,8 +12,10 @@ public:
 
 private:
   void keyPressEvent(QKeyEvent *event) override;
+  bool eventFilter(QObject *object, QEvent *event) override;
 
 private:
   InputMediator *inputMediator;
   Configuration configuration;
+  KeymapEvaluator keymapEvaluator;
 };
diff --git a/include/widgets/WebView.hpp b/include/widgets/WebView.hpp
new file mode 100644
index 0000000..8a95139
--- /dev/null
+++ b/include/widgets/WebView.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <QKeyEvent>
+#include <QWebEngineView>
+#include <QWidget>
+#include <QtCore>
+
+class WebView : public QWebEngineView {
+  Q_OBJECT
+
+public:
+  WebView(QWebEngineProfile *profile);
+};
diff --git a/include/widgets/WebViewStack.hpp b/include/widgets/WebViewStack.hpp
index 34b1658..c315251 100644
--- a/include/widgets/WebViewStack.hpp
+++ b/include/widgets/WebViewStack.hpp
@@ -2,11 +2,11 @@
 
 #include <QStackedLayout>
 #include <QWebEngineProfile>
-#include <QWebEngineView>
 #include <sys/types.h>
 
 #include "Configuration.hpp"
 #include "completion/TabsModel.hpp"
+#include "widgets/WebView.hpp"
 
 enum OpenType { OpenUrl, OpenUrlInTab, OpenUrlInBgTab, OpenUrlInWindow };
 
@@ -24,6 +24,7 @@ public:
   void openUrl(QUrl url, OpenType openType = OpenType::OpenUrl);
 
   std::vector<QUrl> urls();
+  QList<Tab> getTabList();
   u_int32_t currentWebViewIndex();
   u_int32_t count();
   QUrl currentUrl();
@@ -35,11 +36,9 @@ public:
   void close(long index);
   void closeCurrent();
 
-  QList<Tab> getTabList();
-
 private:
   void setCurrentUrl(QUrl url);
-  QWebEngineView *createNewWebView(QUrl url, bool focus = false);
+  WebView *createNewWebView(QUrl url, bool focus = false);
 
 private slots:
   void onNewWebViewRequest(QWebEngineNewWindowRequest &request);
@@ -48,5 +47,5 @@ private:
   const Configuration *configuration;
   QWebEngineProfile *profile;
   QStackedLayout *layout;
-  QList<QWebEngineView *> webViewList;
+  QList<WebView *> webViewList;
 };