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module PDFview
@files = Hash.new
@opencalls = Hash.new
@closecalls = Hash.new
@allcalls = Hash.new
# acrobat no longer is a valid default as (1) it keeps crashing with pdfopen due to a dual acrobat/reader install (a side effect
# of the api changing every version, and (2) because there are all these anyoing popups with respect to signed, review, online
# this and that stuff ... hardly useable as fast previewer, and (3) sumatra is faster and nicer and doesn't block (okay, we have to
# get rid of this horrible yellow bg-coloring buts that is doable
@method = 'sumatra' # 'default' # 'xpdf'
@opencalls['default'] = "pdfopen --file" # "pdfopen --back --file"
@opencalls['xpdf'] = "xpdfopen"
@opencalls['sumatra'] = 'start "test" sumatrapdf.exe -reuse-instance -bg-color 0xCCCCCC'
@closecalls['default'] = "pdfclose --file"
@closecalls['xpdf'] = nil
@closecalls['sumatra'] = nil
@allcalls['default'] = "pdfclose --all"
@allcalls['xpdf'] = nil
@allcalls['sumatra'] = nil
def PDFview.setmethod(method)
@method = method
end
def PDFview.open(*list)
begin
[*list].flatten.each do |file|
filename = fullname(file)
if FileTest.file?(filename) then
if @opencalls[@method] then
result = `#{@opencalls[@method]} #{filename} 2>&1`
@files[filename] = true
end
end
end
rescue
end
end
def PDFview.close(*list)
[*list].flatten.each do |file|
filename = fullname(file)
begin
if @files.key?(filename) then
if @closecalls[@method] then
result = `#{@closecalls[@method]} #{filename} 2>&1`
end
else
closeall
return
end
rescue
end
@files.delete(filename)
end
end
def PDFview.closeall
begin
if @allcalls[@method] then
result = `#{@allcalls[@method]} 2>&1`
end
rescue
end
@files.clear
end
def PDFview.fullname(name)
name + if name =~ /\.pdf$/ then '' else '.pdf' end
end
end
# PDFview.open("t:/document/show-exa.pdf")
# PDFview.open("t:/document/show-gra.pdf")
# PDFview.close("t:/document/show-exa.pdf")
# PDFview.close("t:/document/show-gra.pdf")
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