+require 'etc'
require 'thread'
+require 'ncurses'
+if defined? Ncurses
module Ncurses
def rows
lame, lamer = [], []
lamer.first
end
+ def curx
+ lame, lamer = [], []
+ stdscr.getyx lame, lamer
+ lamer.first
+ end
+
def mutex; @mutex ||= Mutex.new; end
def sync &b; mutex.synchronize(&b); end
end
end
- module_function :rows, :cols, :nonblocking_getch, :mutex, :sync
+ module_function :rows, :cols, :curx, :nonblocking_getch, :mutex, :sync
+
+ remove_const :KEY_ENTER
+ remove_const :KEY_CANCEL
- KEY_CANCEL = "\a"[0] # ctrl-g
+ KEY_ENTER = 10
+ KEY_CANCEL = 7 # ctrl-g
+ KEY_TAB = 9
+end
end
module Redwood
attr_reader :focus_buf
+ ## we have to define the key used to continue in-buffer search here, because
+ ## it has special semantics that BufferManager deals with---current searches
+ ## are canceled by any keypress except this one.
+ CONTINUE_IN_BUFFER_SEARCH_KEY = "n"
+
def initialize
@name_map = {}
@buffers = []
def buffers; @name_map.to_a; end
def focus_on buf
- raise ArgumentError, "buffer not on stack: #{buf.inspect}" unless @buffers.member? buf
+ return unless @buffers.member? buf
+
return if buf == @focus_buf
@focus_buf.blur if @focus_buf
@focus_buf = buf
end
def raise_to_front buf
- raise ArgumentError, "buffer not on stack: #{buf.inspect}" unless @buffers.member? buf
+ return unless @buffers.member? buf
@buffers.delete buf
if @buffers.length > 0 && @buffers.last.force_to_top?
end
def handle_input c
- @focus_buf && @focus_buf.mode.handle_input(c)
+ if @focus_buf
+ if @focus_buf.mode.in_search? && c != CONTINUE_IN_BUFFER_SEARCH_KEY[0]
+ @focus_buf.mode.cancel_search!
+ @focus_buf.mark_dirty
+ end
+ @focus_buf.mode.handle_input c
+ end
end
def exists? n; @name_map.member? n; end
## TODO: reenable this if we allow multiple buffers
false && @buffers.inject(@dirty) do |dirty, buf|
buf.resize Ncurses.rows - minibuf_lines, Ncurses.cols
- @dirty ? buf.draw : buf.redraw
+ #dirty ? buf.draw : buf.redraw
+ buf.draw
+ dirty
end
## quick hack
end
draw_minibuf :sync => false unless opts[:skip_minibuf]
+
@dirty = false
Ncurses.doupdate
Ncurses.refresh if opts[:refresh]
def spawn_unless_exists title, opts={}
if @name_map.member? title
raise_to_front @name_map[title] unless opts[:hidden]
+ nil
else
mode = yield
spawn title, mode, opts
+ @name_map[title]
end
- @name_map[title]
end
def spawn title, mode, opts={}
b
end
+ ## requires the mode to have #done? and #value methods
+ def spawn_modal title, mode, opts={}
+ b = spawn title, mode, opts
+ draw_screen
+
+ until mode.done?
+ c = Ncurses.nonblocking_getch
+ next unless c # getch timeout
+ break if c == Ncurses::KEY_CANCEL
+ mode.handle_input c
+ draw_screen
+ erase_flash
+ end
+
+ kill_buffer b
+ mode.value
+ end
+
def kill_all_buffers_safely
until @buffers.empty?
## inbox mode always claims it's unkillable. we'll ignore it.
- return false unless @buffers.first.mode.is_a?(InboxMode) || @buffers.first.mode.killable?
- kill_buffer @buffers.first
+ return false unless @buffers.last.mode.is_a?(InboxMode) || @buffers.last.mode.killable?
+ kill_buffer @buffers.last
end
true
end
## TODO: something intelligent here
## for now I will simply prohibit killing the inbox buffer.
else
- raise_to_front @buffers.last
+ last = @buffers.last
+ @focus_buf ||= last
+ raise_to_front last
+ end
+ end
+
+ def ask_with_completions domain, question, completions, default=nil
+ ask domain, question, default do |s|
+ completions.select { |x| x =~ /^#{s}/i }.map { |x| [x, x] }
+ end
+ end
+
+ def ask_many_with_completions domain, question, completions, default=nil
+ ask domain, question, default do |partial|
+ prefix, target =
+ case partial
+ when /^\s*$/
+ ["", ""]
+ when /^(.*\s+)?(.*?)$/
+ [$1 || "", $2]
+ else
+ raise "william screwed up completion: #{partial.inspect}"
+ end
+
+ completions.select { |x| x =~ /^#{target}/i }.map { |x| [prefix + x, x] }
+ end
+ end
+
+ def ask_many_emails_with_completions domain, question, completions, default=nil
+ ask domain, question, default do |partial|
+ prefix, target = partial.split_on_commas_with_remainder
+ Redwood::log "before: prefix #{prefix.inspect}, target #{target.inspect}"
+ target ||= prefix.pop || ""
+ prefix = prefix.join(", ") + (prefix.empty? ? "" : ", ")
+ Redwood::log "after: prefix #{prefix.inspect}, target #{target.inspect}"
+ completions.select { |x| x =~ /^#{target}/i }.map { |x| [prefix + x, x] }
+ end
+ end
+
+ def ask_for_filename domain, question, default=nil
+ answer = ask domain, question, default do |s|
+ if s =~ /(~([^\s\/]*))/ # twiddle directory expansion
+ full = $1
+ name = $2.empty? ? Etc.getlogin : $2
+ dir = Etc.getpwnam(name).dir rescue nil
+ if dir
+ [[s.sub(full, dir), "~#{name}"]]
+ else
+ users.select { |u| u =~ /^#{name}/ }.map do |u|
+ [s.sub("~#{name}", "~#{u}"), "~#{u}"]
+ end
+ end
+ else # regular filename completion
+ Dir["#{s}*"].sort.map do |fn|
+ suffix = File.directory?(fn) ? "/" : ""
+ [fn + suffix, File.basename(fn) + suffix]
+ end
+ end
+ end
+
+ if answer
+ answer =
+ if answer.empty?
+ spawn_modal "file browser", FileBrowserMode.new
+ elsif File.directory?(answer)
+ spawn_modal "file browser", FileBrowserMode.new(answer)
+ else
+ answer
+ end
+ end
+
+ answer
+ end
+
+ ## returns an array of labels
+ def ask_for_labels domain, question, default_labels, forbidden_labels=[]
+ default_labels = default_labels - forbidden_labels - LabelManager::RESERVED_LABELS
+ default = default_labels.join(" ")
+ default += " " unless default.empty?
+
+ applyable_labels = (LabelManager.applyable_labels - forbidden_labels).map { |l| LabelManager.string_for l }.sort_by { |s| s.downcase }
+
+ answer = ask_many_with_completions domain, question, applyable_labels, default
+
+ return unless answer
+
+ user_labels = answer.split(/\s+/).map { |l| l.intern }
+ user_labels.each do |l|
+ if forbidden_labels.include?(l) || LabelManager::RESERVED_LABELS.include?(l)
+ BufferManager.flash "'#{l}' is a reserved label!"
+ return
+ end
end
+ user_labels
end
- ## not really thread safe.
- def ask domain, question, default=nil
+ def ask_for_contacts domain, question, default_contacts=[]
+ default = default_contacts.map { |s| s.to_s }.join(" ")
+ default += " " unless default.empty?
+
+ recent = Index.load_contacts(AccountManager.user_emails, :num => 10).map { |c| [c.full_address, c.email] }
+ contacts = ContactManager.contacts.map { |c| [ContactManager.alias_for(c), c.full_address, c.email] }
+
+ completions = (recent + contacts).flatten.uniq.sort
+ answer = BufferManager.ask_many_emails_with_completions domain, question, completions, default
+
+ if answer
+ answer.split_on_commas.map { |x| ContactManager.contact_for(x.downcase) || PersonManager.person_for(x) }
+ end
+ end
+
+
+ def ask domain, question, default=nil, &block
raise "impossible!" if @asking
+ @asking = true
@textfields[domain] ||= TextField.new Ncurses.stdscr, Ncurses.rows - 1, 0, Ncurses.cols
tf = @textfields[domain]
+ completion_buf = nil
- ## this goddamn ncurses form shit is a fucking 1970's
- ## nightmare. jesus christ. the exact sequence of ncurses events
- ## that needs to happen in order to display a form and have the
- ## entire screen not disappear and have the cursor in the right
- ## place is TOO FUCKING COMPLICATED.
+ ## this goddamn ncurses form shit is a fucking 1970's nightmare.
+ ## jesus christ. the exact sequence of ncurses events that needs
+ ## to happen in order to display a form and have the entire screen
+ ## not disappear and have the cursor in the right place is TOO
+ ## FUCKING COMPLICATED.
Ncurses.sync do
- tf.activate question, default
+ tf.activate question, default, &block
@dirty = true
- draw_screen :skip_minibuf => true, :sync => false
+ #draw_screen :skip_minibuf => true, :sync => false
+ draw_screen :sync => false
end
ret = nil
tf.position_cursor
Ncurses.sync { Ncurses.refresh }
- @asking = true
- while tf.handle_input(Ncurses.nonblocking_getch); end
- @asking = false
+ while true
+ c = Ncurses.nonblocking_getch
+ next unless c # getch timeout
+ break unless tf.handle_input c # process keystroke
+
+ if tf.new_completions?
+ kill_buffer completion_buf if completion_buf
+
+ shorts = tf.completions.map { |full, short| short }
+ prefix_len = shorts.shared_prefix.length
+
+ mode = CompletionMode.new shorts, :header => "Possible completions for \"#{tf.value}\": ", :prefix_len => prefix_len
+ completion_buf = spawn "<completions>", mode, :height => 10
+
+ draw_screen :skip_minibuf => true
+ tf.position_cursor
+ elsif tf.roll_completions?
+ completion_buf.mode.roll
+ draw_screen :skip_minibuf => true
+ tf.position_cursor
+ end
- ret = tf.value
+ Ncurses.sync { Ncurses.refresh }
+ end
+
Ncurses.sync { tf.deactivate }
+ kill_buffer completion_buf if completion_buf
@dirty = true
-
- ret
+ @asking = false
+ draw_screen
+ tf.value
end
## some pretty lame code in here!
end
@shelled = false
end
+
+private
+
+ def users
+ unless @users
+ @users = []
+ while(u = Etc.getpwent)
+ @users << u.name
+ end
+ end
+ @users
+ end
end
end