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Fix possible crash with config panel when engine switched (#3761)

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Reading an epub file with Mupdf would show 6 items in bottom
config panel. Reading it with crengine would show only 5.
A crash would happen if we were on the 6th when leaving MuPDF,
and later opening config panel with crengine.
This commit is contained in:
poire-z
2018-03-15 15:39:44 +01:00
committed by Frans de Jonge
parent 152e17fbe3
commit 0a4fb89239
1 changed files with 5 additions and 1 deletions
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6
frontend/apps/reader/modules/readerconfig.lua
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@@ -118,7 +118,11 @@ end
function ReaderConfig:onReadSettings(config)
self.configurable:loadSettings(config, self.options.prefix.."_")
self.last_panel_index = config:readSetting("config_panel_index") or 1
local config_panel_index = config:readSetting("config_panel_index")
if config_panel_index then
config_panel_index = math.min(config_panel_index, #self.options)
end
self.last_panel_index = config_panel_index or 1
end
function ReaderConfig:onSaveSettings()