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check if getPageLinks returned links before use

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This commit is contained in:
Dobrica Pavlinusic
2012-09-25 18:30:09 +02:00
parent 16c5171432
commit fc22f5ed93
1 changed files with 7 additions and 5 deletions
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12
unireader.lua
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@@ -1391,10 +1391,12 @@ function UniReader:show(no)
-- draw links on page
local links = self:getPageLinks( no )
for i, link in ipairs(links) do
local x,y,w,h = self:zoomedRectCoordTransform( link.x0,link.y0, link.x1,link.y1 )
if link.page then -- skip non-page links
fb.bb:invertRect(x,y+h-2, w,1)
if links ~= nil then
for i, link in ipairs(links) do
local x,y,w,h = self:zoomedRectCoordTransform( link.x0,link.y0, link.x1,link.y1 )
if link.page then -- skip non-page links
fb.bb:invertRect(x,y+h-2, w,1)
end
end
end
@@ -2873,7 +2875,7 @@ function UniReader:addAllCommands()
"page links",
function(unireader)
local links = unireader:getPageLinks( unireader.pageno )
if next(links) == nil then
if links == nil or next(links) == nil then
showInfoMsgWithDelay("No links on this page", 2000, 1)
else
local font_size = math.ceil( (links[1].y1 - links[1].y0 - 2) * unireader.globalzoom )