fixes crashes on too small size (except on the /configure tab, but that’s an other issue)

fixes #2186

2 files changed, 22 insertions, 4 deletions

diff --git a/src/tabs.py b/src/tabs.py
index af4de010..d2145d54 100644
--- a/src/tabs.py
+++ b/src/tabs.py
@@ -14,7 +14,7 @@ Windows are displayed, resized, etc
 """
 
 MIN_WIDTH = 50
-MIN_HEIGHT = 16
+MIN_HEIGHT = 22
 
 import logging
 log = logging.getLogger(__name__)
@@ -83,6 +83,10 @@ class Tab(object):
     @staticmethod
     def resize(scr):
         Tab.size = (Tab.height, Tab.width) = scr.getmaxyx()
+        if Tab.height < MIN_HEIGHT or Tab.width < MIN_WIDTH:
+            Tab.visible = False
+        else:
+            Tab.visible = True
 
     def complete_commands(self, the_input):
         """
@@ -666,6 +670,8 @@ class MucTab(ChatTab):
         """
         Resize the whole window. i.e. all its sub-windows
         """
+        if not self.visible:
+            return
         text_width = (self.width//10)*9
         self.topic_win.resize(1, self.width, 0, 0)
         self.v_separator.resize(self.height-3, 1, 1, 9*(self.width//10))
@@ -1015,7 +1021,7 @@ class PrivateTab(ChatTab):
         self.core.close_tab()
 
     def resize(self):
-        if self.core.information_win_size >= self.height-3:
+        if self.core.information_win_size >= self.height-3 or not self.visible:
             return
         self.text_win.resize(self.height-3-self.core.information_win_size, self.width, 0, 0)
         self.text_win.rebuild_everything(self._room)
@@ -1164,6 +1170,8 @@ class RosterInfoTab(Tab):
         self.resize()
 
     def resize(self):
+        if not self.visible:
+            return
         roster_width = self.width//2
         info_width = self.width-roster_width-1
         self.v_separator.resize(self.height-2, 1, 0, roster_width)
@@ -1519,7 +1527,7 @@ class ConversationTab(ChatTab):
         self.core.close_tab()
 
     def resize(self):
-        if self.core.information_win_size >= self.height-3:
+        if self.core.information_win_size >= self.height-3 or not self.visible:
             return
         self.text_win.resize(self.height-4-self.core.information_win_size, self.width, 1, 0)
         self.text_win.rebuild_everything(self._room)
@@ -1638,6 +1646,8 @@ class MucListTab(Tab):
         self.input.refresh()
 
     def resize(self):
+        if not self.visible:
+            return
         self.upper_message.resize(1, self.width, 0, 0)
         column_size = {'node-part': (self.width-5)//4,
                        'name': (self.width-5)//4*3,
@@ -1766,6 +1776,8 @@ class SimpleTextTab(Tab):
         self.core.close_tab()
 
     def resize(self):
+        if not self.visible:
+            return
         self.text_win.resize(self.height-2, self.width, 0, 0)
         self.tab_win.resize(1, self.width, self.height-2, 0)
         self.input.resize(1, self.width, self.height-1, 0)
diff --git a/src/windows.py b/src/windows.py
index 7d138ad2..5b673c21 100644
--- a/src/windows.py
+++ b/src/windows.py
@@ -93,6 +93,12 @@ class Win(object):
         except:
             pass
 
+    def move(self, y, x):
+        try:
+            self._win.move(y, x)
+        except:
+            self._win.move(0, 0)
+
     def addstr_colored(self, text, y=None, x=None):
         """
         Write a string on the window, setting the
@@ -105,7 +111,7 @@ class Win(object):
         one of 'u', 'b', 'c[0-9]'
         """
         if y is not None and x is not None:
-            self._win.move(y, x)
+            self.move(y, x)
         next_attr_char = text.find('\x19')
         while next_attr_char != -1:
             if next_attr_char + 1 < len(text):