irc: replace per-item channel list with 'Switch channel' popup menu

Signed-off-by: Slendi <slendi@socopon.com>

main.lua

@@ -489,34 +489,56 @@ function IrcChatView:onClose()
 end
 
 -- Extend the hamburger menu to add a list of joined channels/targets.
+function IrcChatView:showChannelSwitcher()
+    local Menu = require("ui/widget/menu")
+    local items = {}
+    local targets = self._ordered_targets or {}
+    for _, tgt in ipairs(targets) do
+        local label = (tgt == "*" and _("Server console")) or tgt
+        table.insert(items, {
+            text_func = function()
+                local n = self._unread[tgt] or 0
+                if n > 0 then
+                    return string.format("%s (%d)", label, n)
+                else
+                    return label
+                end
+            end,
+            checked_func = function() return self._current_target == tgt end,
+            callback = function(item)
+                self:switchTarget(tgt)
+                UIManager:close(self._switcher_menu)
+            end,
+        })
+    end
+    self._switcher_menu = Menu:new{
+        title = _("Switch channel"),
+        item_table = items,
+        covers_fullscreen = true,
+        is_borderless = true,
+        is_popout = false,
+        close_callback = function()
+            UIManager:close(self._switcher_menu)
+            self._switcher_menu = nil
+        end,
+    }
+    UIManager:show(self._switcher_menu)
+end
+
 function IrcChatView:onShowMenu()
     local ButtonDialog = require("ui/widget/buttondialog")
     local SpinWidget = require("ui/widget/spinwidget")
     local buttons = {}
 
-    -- Channels/Targets section
-    if self._ordered_targets and #self._ordered_targets > 0 then
-        for _, tgt in ipairs(self._ordered_targets) do
-            table.insert(buttons, {
-                {
-                    text_func = function()
-                        local n = self._unread[tgt] or 0
-                        if n > 0 then
-                            return string.format("%s (%d)", tgt, n)
-                        else
-                            return tgt
-                        end
-                    end,
-                    checked_func = function() return self._current_target == tgt end,
-                    callback = function()
-                        self:switchTarget(tgt)
-                    end,
-                },
-            })
-        end
-        -- separator row
-        table.insert(buttons, { { text = "—", enabled = false, callback = function() end } })
-    end
+    table.insert(buttons, {
+        {
+            text = _("Switch channel"),
+            enabled_func = function() return self._ordered_targets and #self._ordered_targets > 0 end,
+            callback = function()
+                self:showChannelSwitcher()
+            end,
+        }
+    })
 
     -- Font size
     table.insert(buttons, {