From 7aa3c3b17f2a01c949cecf75c74adda346b55608 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 4 Jan 2018 15:33:58 -0500
Subject: [PATCH] Add an insert-mode default command map

---
 src/core/DefaultCommandMap.cc | 27 +++++++++++++++++++-
 src/core/DefaultCommandMap.h  |  6 +++++
 src/gui/Window.cc             | 48 +++++++++++++----------------------
 src/gui/Window.h              |  1 +
 4 files changed, 50 insertions(+), 32 deletions(-)

diff --git a/src/core/DefaultCommandMap.cc b/src/core/DefaultCommandMap.cc
index bbd7759..a64e53d 100644
--- a/src/core/DefaultCommandMap.cc
+++ b/src/core/DefaultCommandMap.cc
@@ -2,8 +2,9 @@
 #include "keys.h"
 
 std::shared_ptr<CommandMap> g_DefaultCommandMap;
+std::shared_ptr<CommandMap> g_DefaultInsertModeCommandMap;
 
-void DefaultCommandMap::build()
+static void build_command_mode()
 {
     g_DefaultCommandMap = std::make_shared<CommandMap>();
     CommandMap * dcm = &*g_DefaultCommandMap;
@@ -71,3 +72,27 @@ void DefaultCommandMap::build()
     dcm->add({JES_KEY_DOWN}, Command::GO_DOWN, nullptr, false);
     dcm->add({JES_KEY_RIGHT}, Command::GO_RIGHT, nullptr, false);
 }
+
+static void build_insert_mode()
+{
+    g_DefaultInsertModeCommandMap = std::make_shared<CommandMap>();
+    CommandMap * dcm = &*g_DefaultInsertModeCommandMap;
+
+    dcm->add({JES_KEY_HOME}, Command::GO_START_OF_LINE, nullptr, false);
+    dcm->add({JES_KEY_MODS_CTRL + JES_KEY_HOME}, Command::GO_START_OF_FILE, nullptr, false);
+    dcm->add({JES_KEY_END}, Command::GO_END_OF_LINE, nullptr, false);
+    dcm->add({JES_KEY_MODS_CTRL + JES_KEY_END}, Command::GO_END_OF_FILE, nullptr, false);
+    dcm->add({JES_KEY_PAGE_UP}, Command::SCROLL_WINDOW_UP_WHOLE_SCREEN, nullptr, false);
+    dcm->add({JES_KEY_PAGE_DOWN}, Command::SCROLL_WINDOW_DOWN_WHOLE_SCREEN, nullptr, false);
+
+    dcm->add({JES_KEY_UP}, Command::GO_UP, nullptr, false);
+    dcm->add({JES_KEY_LEFT}, Command::GO_LEFT, nullptr, false);
+    dcm->add({JES_KEY_DOWN}, Command::GO_DOWN, nullptr, false);
+    dcm->add({JES_KEY_RIGHT}, Command::GO_RIGHT, nullptr, false);
+}
+
+void DefaultCommandMap::build()
+{
+    build_command_mode();
+    build_insert_mode();
+}
diff --git a/src/core/DefaultCommandMap.h b/src/core/DefaultCommandMap.h
index ea0547e..2819650 100644
--- a/src/core/DefaultCommandMap.h
+++ b/src/core/DefaultCommandMap.h
@@ -4,6 +4,7 @@
 #include "CommandMap.h"
 
 extern std::shared_ptr<CommandMap> g_DefaultCommandMap;
+extern std::shared_ptr<CommandMap> g_DefaultInsertModeCommandMap;
 
 class DefaultCommandMap
 {
@@ -14,6 +15,11 @@ public:
     {
         return g_DefaultCommandMap;
     }
+
+    static std::shared_ptr<CommandMap> get_insert_mode()
+    {
+        return g_DefaultInsertModeCommandMap;
+    }
 };
 
 #endif
diff --git a/src/gui/Window.cc b/src/gui/Window.cc
index 2cfca3e..1366e71 100644
--- a/src/gui/Window.cc
+++ b/src/gui/Window.cc
@@ -246,40 +246,14 @@ void Window::handle_keypress(uint32_t keyval)
             change_focus(m_buffer_pane);
             handle_command(command);
         }
-        else if (ctrl_keyval <= 0xFFu)
+        else if (check_insert_mode_command(ctrl_keyval))
+        {
+            /* Command was handled, don't do anything else. */
+        }
+        else if ((ctrl_keyval & JES_KEY_MODS_CTRL) == 0u)
         {
             m_focused_buffer_pane->insert_code_point(ctrl_keyval);
         }
-        else
-        {
-            switch (ctrl_keyval)
-            {
-            case JES_KEY_HOME:
-                m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::SOL, 0u);
-                break;
-            case JES_KEY_END:
-                m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::EOL, 0u);
-                break;
-            case JES_KEY_RIGHT:
-                m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::RIGHT, 0u);
-                break;
-            case JES_KEY_LEFT:
-                m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::LEFT, 0u);
-                break;
-            case JES_KEY_DOWN:
-                m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::DOWN, 0u);
-                break;
-            case JES_KEY_UP:
-                m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::UP, 0u);
-                break;
-            case JES_KEY_PAGE_UP:
-                m_focused_buffer_pane->scroll_window_up(ScrollMode::WHOLE_SCREEN);
-                break;
-            case JES_KEY_PAGE_DOWN:
-                m_focused_buffer_pane->scroll_window_down(ScrollMode::WHOLE_SCREEN);
-                break;
-            }
-        }
     }
     else
     {
@@ -314,6 +288,18 @@ void Window::evaluate_command_input()
     }
 }
 
+bool Window::check_insert_mode_command(uint32_t insert_mode_command)
+{
+    auto cm = DefaultCommandMap::get_insert_mode();
+    Command command;
+    if (cm->lookup_command(&insert_mode_command, 1u, command) == CommandMap::COMMAND_COMPLETE)
+    {
+        execute_command(command);
+        return true;
+    }
+    return false;
+}
+
 void Window::execute_command(const Command & command)
 {
     switch (command.main.id)
diff --git a/src/gui/Window.h b/src/gui/Window.h
index f29d0b5..d91a457 100644
--- a/src/gui/Window.h
+++ b/src/gui/Window.h
@@ -50,6 +50,7 @@ protected:
     void set_window_icon();
     void handle_command(const EncodedString & command);
     void evaluate_command_input();
+    bool check_insert_mode_command(uint32_t insert_mode_command);
     void execute_command(const Command & command);
     void draw_command_input();