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Code Issues Releases Wiki Activity

osc: simplify checks in key handler

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Use a helper function for these safety checks.
This commit is contained in:
Ricardo Constantino 2017-04-15 18:06:57 +01:00
parent 82bf4567f9
commit e870b7ad66
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GPG Key ID: EFD16019AE4FF531
1 changed files with 25 additions and 30 deletions
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47
player/lua/osc.lua
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@ -2045,24 +2045,29 @@ end
-- Eventhandling
--
local function element_has_action(element, action)
return element and element.eventresponder and
element.eventresponder[action]
end
function process_event(source, what)
local action = string.format("%s%s", source,
what and ("_" .. what) or "")
if what == "down" then
for n = 1, #elements do
if not (elements[n].eventresponder == nil) then
if not (elements[n].eventresponder[source .. "_up"] == nil)
or not (elements[n].eventresponder[source .. "_down"] == nil) then
if mouse_hit(elements[n]) and
elements[n].eventresponder and
(elements[n].eventresponder[source .. "_up"] or
elements[n].eventresponder[action]) then
if mouse_hit(elements[n]) then
state.active_element = n
state.active_event_source = source
-- fire the down event if the element has one
if not (elements[n].eventresponder[source .. "_" .. what] == nil) then
elements[n].eventresponder[source .. "_" .. what](elements[n])
end
end
if element_has_action(elements[n], action) then
elements[n].eventresponder[action](elements[n])
end
end
@ -2070,24 +2075,19 @@ function process_event(source, what)
elseif what == "up" then
if not (state.active_element == nil) then
if elements[state.active_element] then
local n = state.active_element
if n == 0 then
--click on background (does not work)
elseif n > 0 and not (n > #elements) and
not (elements[n].eventresponder == nil) and
not (elements[n].eventresponder[source .. "_" .. what] == nil) then
elseif element_has_action(elements[n], action) and
mouse_hit(elements[n]) then
if mouse_hit(elements[n]) then
elements[n].eventresponder[source .. "_" .. what](elements[n])
end
elements[n].eventresponder[action](elements[n])
end
--reset active element
if not (n > #elements) and elements[n].eventresponder ~= nil and
elements[n].eventresponder["reset"] ~= nil then
if element_has_action(elements[n], "reset") then
elements[n].eventresponder["reset"](elements[n])
end
@ -2096,6 +2096,7 @@ function process_event(source, what)
state.mouse_down_counter = 0
elseif source == "mouse_move" then
local mouseX, mouseY = get_virt_mouse_pos()
if (user_opts.minmousemove == 0) or
(not ((state.last_mouseX == nil) or (state.last_mouseY == nil)) and
@ -2107,15 +2108,9 @@ function process_event(source, what)
end
state.last_mouseX, state.last_mouseY = mouseX, mouseY
if not (state.active_element == nil) then
local n = state.active_element
if not (n > #elements) and not (elements[n].eventresponder == nil) then
if not (elements[n].eventresponder[source] == nil) then
elements[n].eventresponder[source](elements[n])
end
end
if element_has_action(elements[n], action) then
elements[n].eventresponder[action](elements[n])
end
tick()
end