From 330349420602117c913ceef726e0d7a56bbb5ce9 Mon Sep 17 00:00:00 2001
From: Dominic Zimmer <s8dozimm@stud.uni-saarland.de>
Date: Thu, 8 Aug 2019 10:29:52 +0200
Subject: [PATCH] Implement Popups, add popup to message delete

---
 drawtool.py |  3 +++
 mainview.py | 31 +++++++++++++++++++++++++++----
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/drawtool.py b/drawtool.py
index 96f40cf..62874a3 100644
--- a/drawtool.py
+++ b/drawtool.py
@@ -79,6 +79,9 @@ class Drawtool():
                 self.stdscr.addstr(self.H - 1, 0, "/" + self.main_view.search_box, self.main_view.colors["error"])
             else:
                 self.stdscr.addstr(self.H - 1, 0, "/" + self.main_view.search_box)
+        elif self.main_view.mode == "popup":
+            _, question = self.main_view.popup
+            self.stdscr.addstr(self.H - 1, 0, question)
         elif self.main_view.mode == "vimmode":
             self.stdscr.addstr(self.H - 1, 0, ":" + self.main_view.vimline_box)
         else:
diff --git a/mainview.py b/mainview.py
index ef43c2c..b08bafa 100644
--- a/mainview.py
+++ b/mainview.py
@@ -30,6 +30,8 @@ class MainView():
         self.inputs = ""
         self.inputs_cursor = 0
 
+        self.popup = None
+
         self.drawtool = drawtool.Drawtool(self)
         self.fin = False
         from config import colors as colorconfig
@@ -298,6 +300,16 @@ class MainView():
             else:
                 subprocess.Popen(["xdg-open", f"{path}"], stdout = subprocess.DEVNULL, stderr = subprocess.DEVNULL)
 
+    def popup_message(self, question):
+        self.mode = "popup"
+        async def action_handler(self, key):
+            self.mode = "normal"
+        self.popup = (action_handler, question)
+
+    def spawn_popup(self, action_handler, question):
+        self.mode = "popup"
+        self.popup = (action_handler, question)
+
     async def handle_key(self, key):
         if not self.ready:
             return
@@ -371,11 +383,19 @@ class MainView():
                         return
                     if n >= len(self.dialogs[self.selected_chat]["messages"]):
                         #TODO: alert user
+                        self.popup_message("No message by that id.")
+                        await self.drawtool.redraw()
                         return
-                    to_delete = self.dialogs[self.selected_chat]["messages"][n]
-                    await to_delete.delete()
-                    self.dialogs[self.selected_chat]["messages"].pop(n)
-                    self.command_box = ""
+                    async def action_handler(self, key):
+                        if key in ["y","Y"]:
+                            to_delete = self.dialogs[self.selected_chat]["messages"][n]
+                            await to_delete.delete()
+                            self.dialogs[self.selected_chat]["messages"].pop(n)
+                            self.command_box = ""
+                        self.mode = "normal"
+                    question = f"Are you really sure you want to delete message {n}? [y/N]"
+                    self.spawn_popup(action_handler, question)
+
                     await self.drawtool.redraw()
             elif key == "r":
                 if self.command_box:
@@ -414,6 +434,9 @@ class MainView():
                 self.search_box = ""
             elif key == " ":
                 self.drawtool.show_indices ^= True
+        elif self.mode == "popup":
+            action, _ = self.popup
+            await action(self, key)
         elif self.mode == "insert":
             if key == "ESCAPE":
                 self.mode = "normal"