# TODO Dynamic loading (requirejs? + mime_type to codemirror helper)

#= require codemirror/modes/haskell

#= require codemirror/modes/sparql

#= require codemirror/modes/xml

$ ->

if $("#code-area").length > 0

editor = CodeMirror.fromTextArea(document.getElementById("code-area"),

mode: $("#code-area").data("mime-type")

lineNumbers: true

readOnly: true

)

btn_edit = $("#codemirror-btn-edit")

btn_commit = $("#codemirror-btn-commit")

btn_discard = $("#codemirror-btn-discard")

btn_discard_cancel = $('#coremirror-btn-discard-cancel')

btn_discard_confirm = $('#codemirror-btn-discard-confirm')

form = $(".edit-form")

alert_error = $(".alert-error")

message_group = $("#message-group")

message_textarea = $("#message")[0]

hasErrorClass = "has-error"

editingClass = "editing"

discard_modal = $('#discard_modal')

editorPreventFocus = (e) ->

editor.setOption "cursorHeight", 0

return

editorAllowFocus = (e) ->

editor.setOption "cursorHeight", 1

return

editorSetFocus = (e) ->

$(e.getTextArea()).next().addClass editingClass

return

editorSetBlur = (e) ->

$(e.getTextArea()).next().removeClass editingClass

return

editorSubmit = (e) ->

$("form.edit-form").submit()

false

# Once you discarded an actual change, the first disjunct is false

# even though the editor content is the original one.

editorDocClean = ->

editor.doc.isClean() || original_editor_content == editor.getValue()

requireCommitMessage = (e) ->

if $.trim($("#message").val()) is ""

alert_error.show()

message_group.addClass hasErrorClass

false

else

true

discard = (use_modal) ->

if use_modal

discard_modal.modal('show')

else

message_textarea.value = ""

editor.setOption "readOnly", true

editor.setValue original_editor_content

message_group.removeClass hasErrorClass

alert_error.hide()

$(".show-when-editing").hide()

$(".hide-when-editing").show()

editorPreventFocus()

editor.off "focus", editorSetFocus

editor.off "blur", editorSetBlur

discard_modal.modal('hide')

return

enableEditing = (e) ->

e.preventDefault()

editorAllowFocus()

editor.on "focus", editorSetFocus

editor.on "blur", editorSetBlur

editor.setOption "readOnly", false

$(".show-when-editing").show()

$(".hide-when-editing").hide()

editor.focus()

btn_commit.unbind("click").click editorSubmit

btn_discard.unbind("click").click(-> discard(!editorDocClean()))

btn_discard_confirm.unbind('click').click(-> discard(false))

form.unbind("submit").submit requireCommitMessage

false

original_editor_content = editor.getValue()

discard_modal.modal({show: false})

editorPreventFocus()

btn_edit.unbind("click").click enableEditing

if window.location.hash == '#edit'

enableEditing($.Event("click"))

return