if prev_xyh.x < orig_xyh.x or prev_xyh.y < orig_xyh.y
return [n, prev_i]
return [n, i - 1]
- found_prev = n?
+ found_prev = null
found = null
traverse_tree tree, (node) ->
if node.type is 'text'
+ unless n?
+ found = node
+ return true
if node is n
- if found_prev?
- found = found_prev
+ found = found_prev # null if n is the first text node
return true
found_prev = node
return false
constructor: (in_el, options) ->
@options = options ? {}
@in_el = in_el
- @tree = []
+ @tree = null
@matting = []
- @inited = false # when iframes have loaded
+ @init_1_called = false # when iframes have loaded
@outer_iframe # iframe to hold editor
@outer_idoc # "document" object for @outer_iframe
@wrap2 = null # scrollbar is on this
@cursor_visible = false
@poll_for_blur_timeout = null
@iframe_offset = null
+ @iframe_height = null
opt_fragment = @options.fragment ? true
@parser_opts = {}
if opt_fragment
@outer_idoc.head.appendChild icss
@iframe = domify @outer_idoc, iframe: sandbox: 'allow-same-origin allow-scripts'
@iframe.onload = =>
- @init()
- setTimeout (=> @init() unless @inited), 200 # firefox never fires this onload
+ @init_1()
+ timeout 200, => # firefox never fires this onload
+ @init_1() unless @init_1_called
@outer_idoc.body.appendChild(
domify @outer_idoc, div: id: 'wrap1', children: [
domify @outer_idoc, div: style: "position: absolute; top: 0; left: 1px; font-size: 10px", children: [ domify @outer_idoc, text: "Peach HTML5 Editor" ]
@outer_iframe.setAttribute 'style', outer_iframe_style
css = outer_css w: outer_bounds.w, h: outer_bounds.h
outer_wrap.appendChild @outer_iframe
- init: -> # called by @iframe's onload (or timeout on firefox)
+ init_1: -> # @iframe has loaded (but not it's css)
@idoc = @iframe.contentDocument
+ @init_1_called = true
+ # chromium doesn't resolve relative urls as though they were at the same domain
+ # so add a <base> tag
+ @idoc.head.appendChild domify @idoc, base: href: this_url_sans_path()
+ # don't let @iframe have scrollbars
+ @idoc.head.appendChild domify @idoc, style: children: [domify @idoc, text: "body { overflow: hidden; }"]
+ # load css file
+ if @options.css_file
+ istyle = domify @idoc, link: rel: 'stylesheet', href: @options.css_file
+ istyle.onload = =>
+ @init_2()
+ @idoc.head.appendChild istyle
+ else
+ @init_2()
+ init_2: -> # @iframe and it's css file(s) are ready
@overlay.onclick = (e) =>
@have_focus()
return event_return e, @onclick e
@outer_idoc.body.onkeypress = (e) =>
@have_focus()
return event_return e, @onkeypress e
- # chromium doesn't resolve relative urls as though they were at the same domain
- # so add a <base> tag
- @idoc.head.appendChild domify @idoc, base: href: this_url_sans_path()
- if @options.css_file
- # TODO test this
- @idoc.head.appendChild domify @idoc, link: rel: 'stylesheet', type: 'text/css', href: @options.css_file
- @idoc.head.appendChild domify @idoc, style: children: [domify @idoc, text: "body { overflow: hidden; }"]
@load_html @in_el.value
- @inited = true
if @options.on_init?
@options.on_init()
overlay_event_to_inner_xy: (e) ->
break
return false
when KEY_UP
+ if @cursor?
+ new_cursor = @cursor
+ old_loc = cursor_to_xyh new_cursor[0], new_cursor[1]
+ new_loc = x: old_loc.x, y: old_loc.y
+ while new_loc.y >= old_loc.y
+ new_cursor = find_prev_cursor_position @tree, new_cursor[0], new_cursor[1]
+ return false unless new_cursor?
+ new_loc = cursor_to_xyh new_cursor[0], new_cursor[1]
+ if new_cursor?
+ # now we're above
+ if new_loc.x <= old_loc.x
+ @move_cursor new_cursor
+ return false
+ target_y = new_loc.y
+ # search leftward, until we find the closest position
+ while new_loc.x > old_loc.x and new_loc.y is target_y
+ prev_loc = new_loc
+ prev_cursor = new_cursor
+ new_cursor = find_prev_cursor_position @tree, new_cursor[0], new_cursor[1]
+ break unless new_cursor?
+ new_loc = cursor_to_xyh new_cursor[0], new_cursor[1]
+ # move cursor to prev_cursor or new_cursor
+ if new_cursor?
+ if new_loc.y is target_y
+ # both valid, and on the same line, use closest
+ if (old_loc.x - new_loc.x) < (prev_loc.x - old_loc.x)
+ @move_cursor new_cursor
+ else
+ @move_cursor prev_cursor
+ else
+ # new_cursor on wrong line, use prev_cursor
+ @move_cursor prev_cursor
+ else
+ # can't go any further prev, use prev_cursor
+ @move_cursor prev_cursor
+ else
+ # move cursor to first position in document
+ new_cursor = find_prev_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ break
return false
when KEY_RIGHT
if @cursor?
if new_cursor?
@move_cursor new_cursor
else
- for c in @tree
- new_cursor = find_prev_cursor_position @tree, c, -1
- if new_cursor?
- @move_cursor new_cursor
- break
+ # move cursor to first position in document
+ new_cursor = find_prev_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ break
return false
when KEY_DOWN
return false
@in_el.value = @pretty_html @tree
@in_el.onchange = =>
@load_html @in_el.value
- @iframe.style.height = "0"
- @iframe.style.height = "#{@idoc.body.scrollHeight}px"
+ @adjust_iframe_height()
+ adjust_iframe_height: ->
+ h = parseInt(@idoc.body.scrollHeight, 10)
+ if @iframe_height isnt h
+ @iframe_height = h
+ s = @wrap2.scrollTop
+ @iframe.style.height = "0"
+ @iframe.style.height = "#{h}px"
+ @wrap2.scrollTop = s
kill_cursor: -> # remove it, forget where it was
if @cursor_visible
@cursor_el.parentNode.removeChild @cursor_el
Got questions, comments, patches, etc.? Contact Jason Woofenden