From 8ea898e863c8c62fc0230d1c76d58bc477a16d14 Mon Sep 17 00:00:00 2001
From: mitchell <70453897+667e-11@users.noreply.github.com>
Date: Sat, 14 Feb 2009 15:14:37 -0500
Subject: Added textadept.context_menu field for a custom popup context menu.

---
 src/lua_interface.c | 20 ++++++++++++++++++++
 src/textadept.c     | 14 ++++++++++++++
 src/textadept.h     |  1 +
 3 files changed, 35 insertions(+)

(limited to 'src')

diff --git a/src/lua_interface.c b/src/lua_interface.c
index b6739c15..369fd90d 100644
--- a/src/lua_interface.c
+++ b/src/lua_interface.c
@@ -747,6 +747,26 @@ void l_handle_scnnotification(SCNotification *n) {
   l_call_function(1);
 }
 
+/**
+ * Requests and pops up a context menu for the Scintilla view.
+ * @param event The mouse button event.
+ */
+void l_ta_popup_context_menu(GdkEventButton *event) {
+  lua_getglobal(lua, "textadept");
+  if (lua_istable(lua, -1)) {
+    lua_getfield(lua, -1, "context_menu");
+    if (lua_isuserdata(lua, -1)) {
+      GtkWidget *menu = l_togtkwidget(lua, -1);
+      gtk_widget_show_all(menu);
+      gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL,
+                     event ? event->button : 0,
+                     gdk_event_get_time(reinterpret_cast<GdkEvent*>(event)));
+    } else if (!lua_isnil(lua, -1))
+      warn("textadept.context_menu is not a gtkmenu.");
+    lua_pop(lua, 1); // textadept.context_menu
+  } else lua_pop(lua, 1);
+}
+
 /**
  * Executes a given command string as Lua code.
  * @param command Lua code to execute.
diff --git a/src/textadept.c b/src/textadept.c
index ee2f4da6..2b0a17d0 100644
--- a/src/textadept.c
+++ b/src/textadept.c
@@ -20,6 +20,7 @@ GtkWidget *window, *focused_editor, *menubar, *statusbar, *docstatusbar;
 static void t_notification(GtkWidget*, gint, gpointer lParam, gpointer);
 static void t_command(GtkWidget *editor, gint wParam, gpointer, gpointer);
 static gbool t_keypress(GtkWidget*, GdkEventKey *event, gpointer);
+static gbool t_buttonpress(GtkWidget*, GdkEventButton *event, gpointer);
 static gbool w_focus(GtkWidget*, GdkEventFocus *, gpointer);
 static gbool w_keypress(GtkWidget*, GdkEventKey *event, gpointer);
 static gbool w_exit(GtkWidget*, GdkEventAny*, gpointer);
@@ -243,7 +244,9 @@ void create_ui() {
 GtkWidget *new_scintilla_window(sptr_t buffer_id) {
   GtkWidget *editor = scintilla_new();
   gtk_widget_set_size_request(editor, 1, 1); // minimum size
+  SS(SCINTILLA(editor), SCI_USEPOPUP, 0, 0);
   signal(editor, "key_press_event", t_keypress);
+  signal(editor, "button_press_event", t_buttonpress);
   signal(editor, "command", t_command);
   signal(editor, SCINTILLA_NOTIFY, t_notification);
   l_add_scintilla_window(editor);
@@ -490,6 +493,17 @@ static gbool t_keypress(GtkWidget*, GdkEventKey *event, gpointer) {
   return l_handle_keypress(event->keyval, shift, control, alt) ? TRUE : FALSE;
 }
 
+/**
+ * Signal for a Scintilla mouse click.
+ * If it is a right-click, popup a context menu.
+ * @see l_ta_popup_context_menu
+ */
+static gbool t_buttonpress(GtkWidget*, GdkEventButton *event, gpointer) {
+  if (event->type != GDK_BUTTON_PRESS || event->button != 3) return FALSE;
+  l_ta_popup_context_menu(event);
+  return TRUE;
+}
+
 /**
  * Signal for a Textadept window focus change.
  */
diff --git a/src/textadept.h b/src/textadept.h
index 303c3ddf..f017ad82 100644
--- a/src/textadept.h
+++ b/src/textadept.h
@@ -88,6 +88,7 @@ bool l_handle_event(const char *e, const char *arg=NULL);
 bool l_handle_keypress(int keyval, bool shift, bool control, bool alt);
 void l_handle_scnnotification(SCNotification *n);
 void l_ta_command(const char *command);
+void l_ta_popup_context_menu(GdkEventButton *event);
 
 bool l_cec_get_completions_for(const char *entry_text);
 void l_cec_populate(GtkListStore *store);
-- 
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