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Split the draggable div generating code from Views#draggables ; added the Draggable controller.

master
Paul van Tilburg 12 years ago
parent
commit
0dfe4b52f2
  1. 121
      plemp.rb

121
plemp.rb

@ -106,6 +106,27 @@ module Plemp::Controllers @@ -106,6 +106,27 @@ module Plemp::Controllers
end
end
# = The draggable controller
#
# Controller that provides direct access to the HTML generating code
# for draggable objects.
#
# path:: /draggable/<id>
# view:: views#Draggable
class DraggableX
# Retrieves the draggable with the given _id_ from the database and
# returns the HTML.
def get(id)
@drag = Draggable.find_by_file(id)
if @drag.nil?
@status = "404"
return "Error 404: Unknown draggable ID: #{id}"
end
# Call draggable from the views, but do not wrap the layout.
mab(false) { draggable }
end
end
# = The position save controller
#
# Controller used through AJAX request by the main page for committing
@ -251,58 +272,60 @@ module Plemp::Views @@ -251,58 +272,60 @@ module Plemp::Views
end
end
# The canvas with draggables. Creates a draggable HTML element including
# the actually contents of the associated file per Draggable object in
# the database.
# The canvas with draggables repsenting the objects in the database.
def draggables
div.draggables! do
@draggables.each do |d|
file = UPLOAD_DIR + d.file
unless file.exist?
# The associated file of this Draggable object is gone, remove
# the object from the database too.
d.destroy
next
end
# Determine the MIME type.
file_type = `file --brief --mime-type #{file}`.chomp
mime_type = MIME::Types[file_type].first
if mime_type.nil?
mime_type = MIME::Type.new(file_type)
end
# Create an HTML element based on the type of the Draggable object.
default_style = "left:#{d.left}px;top:#{d.top}px;z-index:0;display:none"
case mime_type.media_type
when "image"
img.draggable :id => d.file, :style => default_style,
:src => R(StaticXX, "upload", file.basename),
:alt => file.basename
when "video"
# HTML5 is not supported by Markaby!
self << \
" <video class=\"draggable\" id=\"#{d.file}\" " +
"style=\"#{default_style}\" " +
"src=\"#{R(StaticXX, "upload", d.file)}\" " +
"controls=\"true\">" + "</video>\n"
when "audio"
# HTML5 is not supported by Markaby!
self <<
" <audio class=\"draggable\" id=\"#{d.file}\" " +
"style=\"#{default_style};height=80px;\" " +
"src=\"#{R(StaticXX, "upload", d.file)}\" " +
"controls=\"true\">" + "</audio>\n"
when "text"
div.draggable :id => d.file, :style => default_style do
CodeRay.scan_file(file).div(:tab_width => 2,
:line_numbers => :inline)
end
else
span.draggable :id => d.file, :style => default_style do
em "#{d.file}: Unsupported file type!"
end
end # case
end
@draggables.each { |d| @drag = d; draggable }
end
end # def draggables
# Creates a draggable HTML (block) element including the actually
# contents of the associated file for Draggbale object _d_.
def draggable
file = UPLOAD_DIR + @drag.file
unless file.exist?
# The associated file of this Draggable object is gone, remove
# the object from the database too.
@drag.destroy
return ""
end
# Determine the MIME type.
file_type = `file --brief --mime-type #{file}`.chomp
mime_type = MIME::Types[file_type].first
if mime_type.nil?
mime_type = MIME::Type.new(file_type)
end
# Create an HTML element based on the type of the Draggable object.
default_style = "left:#{@drag.left}px;top:#{@drag.top}px;z-index:0;display:none"
case mime_type.media_type
when "image"
img.draggable :id => @drag.file, :style => default_style,
:src => R(StaticXX, "upload", file.basename),
:alt => file.basename
when "video"
# HTML5 is not supported by Markaby!
self << \
" <video class=\"draggable\" id=\"#{@drag.file}\" " +
"style=\"#{default_style}\" " +
"src=\"#{R(StaticXX, "upload", @drag.file)}\" " +
"controls=\"true\">" + "</video>\n"
when "audio"
# HTML5 is not supported by Markaby!
self <<
" <audio class=\"draggable\" id=\"#{@drag.file}\" " +
"style=\"#{default_style};height=80px;\" " +
"src=\"#{R(StaticXX, "upload", @drag.file)}\" " +
"controls=\"true\">" + "</audio>\n"
when "text"
div.draggable :id => @drag.file, :style => default_style do
CodeRay.scan_file(file).div(:tab_width => 2,
:line_numbers => :inline)
end
else
span.draggable :id => @drag.file, :style => default_style do
em "#{@drag.file}: Unsupported file type!"
end
end # case
end # def draggable
end # module Plemp::Views