Class: BufferManager

Inherits:
Object
  • Object
show all
Defined in:
lib/vimamsa/buffer_manager.rb

Constant Summary collapse

@@cur =

Current object of class

nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ BufferManager

Returns a new instance of BufferManager.



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# File 'lib/vimamsa/buffer_manager.rb', line 22

def initialize()
  @buf = nil
  @line_to_id = {}
end

Instance Attribute Details

#buf ⇒ Object (readonly)

Returns the value of attribute buf.



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# File 'lib/vimamsa/buffer_manager.rb', line 2

def buf
  @buf
end

Class Method Details

.cur ⇒ Object 



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# File 'lib/vimamsa/buffer_manager.rb', line 5

def self.cur()
  return @@cur
end

.init ⇒ Object 



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# File 'lib/vimamsa/buffer_manager.rb', line 9

def self.init()
  # vma.kbd.add_minor_mode("bmgr", :buf_mgr, :command)
  vma.kbd.add_minor_mode("bmgr", :bmgr, :command)
  reg_act(:bmgr_select, proc { buf.module.select_line }, "")
  reg_act(:bmgr_close, proc { buf.module.close_selected }, "")

  reg_act(:start_buf_manager, proc { BufferManager.new.run; vma.kbd.set_mode(:bmgr) }, "Buffer manager")

  bindkey "bmgr enter", :bmgr_select
  bindkey "bmgr c", :bmgr_close
  bindkey "bmgr x", :close_current_buffer
end

Instance Method Details

#buf_of_current_line ⇒ Object 



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# File 'lib/vimamsa/buffer_manager.rb', line 27

def buf_of_current_line()
  l = @buf.lpos - @header.size
  return nil if l < 0
  bufid = @line_to_id[l]
  return bufid
end

#close_selected ⇒ Object 



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# File 'lib/vimamsa/buffer_manager.rb', line 34

def close_selected
  idx = buf_of_current_line()
  r = @buf.current_line_range
  Gui.hilight_range(@buf, r, color: "#666666ff")
  if idx.nil?
    message("buf already closed")
    return
  end
  vma.buffers.close_other_buffer(idx)
end

#run ⇒ Object 



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# File 'lib/vimamsa/buffer_manager.rb', line 54

def run
  if !@@cur.nil? #One instance open already
    #Close it
    buf_i = vma.buffers.get_buffer_by_id(@@cur.buf.id)
    vma.buffers.close_buffer(buf_i)
  end
  @@cur = self
  @header = []
  @header << "Current buffers:"
  @header << "keys: <enter> to select, <c> to close buffer, <x> exit"
  @header << "=" * 40

  s = ""
  s << @header.join("\n")
  s << "\n"
  i = 0
  jump_to_line = 0
  lastdir = nil
  bh = {}
  for b in vma.buffers.list
    if !b.fname.nil?
      bname = File.basename(b.fname)
      dname = File.dirname(b.fname)
    else
      bname = b.list_str
      dname = "*"
    end
    bh[dname] ||= []
    bh[dname] << {bname: bname, buf: b}
  end
  for k in bh.keys.sort
    d = tilde_path(k)
    s << "📂#{d}:\n" # Note: to close?: 📁 
    i += 1
    for bnfo in bh[k].sort_by{|x|x[:bname]}
      s << "╰─#{bnfo[:bname]}\n"
      
      @line_to_id[i] = bnfo[:buf].id
      jump_to_line = i if bnfo[:buf].id == vma.buf.id # current file
      i += 1
    end
  end
  
  if @buf.nil?
    @buf = create_new_buffer(s, "bufmgr")
    @buf.default_mode = :buf_mgr
    @buf.module = self
    @buf.active_kbd_mode = :buf_mgr
  else
    @buf.set_content(s)
  end
  # Position on the line of the active buffer
  # @buf.set_content(s)
  newlpos = @header.size + jump_to_line

  @buf.set_line_and_column_pos(newlpos, 0)

  # Thread.new{sleep 0.1; center_on_current_line()} # TODO
end

#select_line ⇒ Object 



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# File 'lib/vimamsa/buffer_manager.rb', line 45

def select_line
  idx = buf_of_current_line()
  return if idx.nil?

  vma.buffers.set_current_buffer(idx)
  vma.buffers.close_other_buffer(@buf.id)
  @@cur = nil
end