# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-TYPE_TAG = peach_parser.TYPE_TAG
-TYPE_TEXT = peach_parser.TYPE_TEXT
-TYPE_COMMENT = peach_parser.TYPE_COMMENT
-TYPE_DOCTYPE = peach_parser.TYPE_DOCTYPE
+# SETTINGS
+overlay_padding = 10
+breathing_room = 30 # minimum pixels above/below cursor (scrolling)
+
+timeout = (ms, cb) -> return setTimeout cb, ms
+next_frame = (cb) ->
+ if (window.requestAnimationFrame?)
+ window.requestAnimationFrame cb
+ else
+ timeout 16, cb
+
+this_url_sans_path = ->
+ ret = "#{window.location.href}"
+ clip = ret.lastIndexOf '#'
+ if clip > -1
+ ret = ret.substr 0, clip
+ clip = ret.lastIndexOf '?'
+ if clip > -1
+ ret = ret.substr 0, clip
+ clip = ret.lastIndexOf '/'
+ if clip > -1
+ ret = ret.substr 0, clip + 1
+ return ret
+
+# table too look up the properties of various values for css's white-space
+ws_props =
+ normal:
+ space: false # spaces are not preserved/rendered
+ newline: false # newlines are not preserved/rendered
+ wrap: true # text is word-wrapped
+ to_preserve: 'pre-wrap' # to preservespaces, change white-space to this
+ nowrap:
+ space: false
+ newline: false
+ wrap: false
+ to_preserve: 'pre'
+ 'pre-line':
+ space: false
+ newline: true
+ wrap: true
+ to_preserve: 'pre-wrap'
+ pre:
+ space: true
+ newline: true
+ wrap: false
+ to_collapse: 'nowrap'
+ 'pre-wrap':
+ space: true
+ newline: true
+ wrap: true
+ to_collapse: 'normal'
+
+# xml 1.0 spec, chromium and firefox accept these, plus lots of unicode chars
+valid_attr_regex = new RegExp '^[a-zA-Z_:][-a-zA-Z0-9_:.]*$'
+# html5 spec is much more lax, but chromium won't let me make at attribute with the name "4"
+js_attr_regex = new RegExp '^[oO][nN].'
+# html5 spec says that only these characters are collapsable
+multi_sp_regex = new RegExp '[\u0020\u0009\u000a\u000c\u000d][\u0020\u0009\u000a\u000c\u000d]'
+
+str_has_ws_run = (str) ->
+ return multi_sp_regex.test str
debug_dot_at = (doc, x, y) ->
+ return # disabled
el = doc.createElement 'div'
el.setAttribute 'style', "position: absolute; left: #{x}px; top: #{y}px; width: 1px; height: 3px; background-color: red"
doc.body.appendChild el
# text nodes don't have getBoundingClientRect(), so use selection api to find
# it.
-get_el_bounds = (el) ->
+get_el_bounds = window.bounds = (el) ->
if el.getBoundingClientRect?
rect = el.getBoundingClientRect()
else
else
return window.getComputedStyle(el, null).getPropertyValue('display') is 'block'
+# Pass return value from dom event handlers to this.
+# If they return false, this will addinionally stop propagation and default.
+event_return = (e, bool) ->
+ if bool is false
+ if e.stopPropagation?
+ e.stopPropagation()
+ if e.preventDefault?
+ e.preventDefault()
+ return bool
# Warning: currently assumes you're asking about a single character
# Note: chromium returns multiple bounding rects for a space at a line-break
# Note: chromium's getBoundingClientRect() is broken (when zero-area client rects)
range.setEnd el, end
rects = range.getClientRects()
if rects.length > 0
- rect = rects[0]
+ if rects.length > 1
+ if rects[1].width > rects[0].width
+ rect = rects[1]
+ else
+ rect = rects[0]
+ else
+ rect = rects[0]
else
return null
doc = el.ownerDocument.documentElement
bounding: range.getBoundingClientRect()
}
-# figure out the x/y coordinates of where the cursor should be if it's at
-# position ``i`` within text node ``n``
-# sometimes returns null (eg for whitespace that is not visible)
-window.cursor_to_xyh = cursor_to_xyh = (n, i) ->
- range = document.createRange()
- if n.text.length is 0
- ret = text_range_bounds n.el, 0, 0
- if i is n.text.length
- ret = text_range_bounds n.el, i - 1, i
+class CursorPosition
+ constructor: (args) ->
+ @n = args.n ? null
+ @i = args.i ? null
+ if args.x?
+ @x = args.x
+ @y = args.y
+ @h = args.h
+ else
+ @set_xyh()
+ return
+ set_xyh: ->
+ range = document.createRange()
+ if @n.text.length is 0
+ ret = text_range_bounds @n.el, 0, 0
+ else if @i is @n.text.length
+ ret = text_range_bounds @n.el, @i - 1, @i
+ if ret?
+ ret.x += ret.w
+ else
+ ret = text_range_bounds @n.el, @i, @i + 1
if ret?
- ret.x += ret.w
- else
- ret = text_range_bounds n.el, i, i + 1
- if ret?
- debug_dot_at n.el.ownerDocument, ret.x, ret.y
- return ret
+ @x = ret.x
+ @y = ret.y
+ @h = ret.h
+ else
+ @x = null
+ @y = null
+ @h = null
+ return ret
+
+new_cursor_position = (args) ->
+ ret = new CursorPosition args
+ if ret.x?
+ return ret
+ return null
# encode text so it can be safely placed inside an html attribute
enc_attr_regex = new RegExp '(&)|(")|(\u00A0)', 'g'
return '&' if (amp)
return '"' if (quote)
return ' '
+enc_text_regex = new RegExp '(&)|(<)|(\u00A0)', 'g'
+enc_text = (txt) ->
+ return txt.replace enc_text_regex, (match, amp, lt) ->
+ return '&' if (amp)
+ return '<' if (lt)
+ return ' '
void_elements = {
area: true
track: true
wbr: true
}
-dom_to_html = (dom) ->
- ret = ''
- for el in dom
- switch el.type
- when TYPE_TAG
- ret += '<' + el.name
- attr_keys = []
- for k of el.attrs
- attr_keys.unshift k
- #attr_keys.sort()
- for k in attr_keys
- ret += " #{k}"
- if el.attrs[k].length > 0
- ret += "=\"#{enc_attr el.attrs[k]}\""
- ret += '>'
- unless void_elements[el.name]
- if el.children.length
- ret += dom_to_html el.children
- ret += "</#{el.name}>"
- when TYPE_TEXT
- ret += el.text
- when TYPE_COMMENT
- ret += "<!--#{el.text}-->"
- when TYPE_DOCTYPE
- ret += "<!DOCTYPE #{el.name}"
- if el.public_identifier? and el.public_identifier.length > 0
- ret += " \"#{el.public_identifier}\""
- if el.system_identifier? and el.system_identifier.length > 0
- ret += " \"#{el.system_identifier}\""
- ret += ">\n"
- return ret
+# TODO make these always pretty-print (on the inside) like blocks
+no_text_elements = { # these elements never contain text
+ select: true
+ table: true
+ tr: true
+ thead: true
+ tbody: true
+ ul: true
+ ol: true
+}
-domify = (h) ->
- for tag, attrs of h
+domify = (doc, hash) ->
+ for tag, attrs of hash
if tag is 'text'
return document.createTextNode attrs
el = document.createElement tag
el.setAttribute k, v
return el
-css = ''
-css += 'div#peach_html5_editor_cursor {'
-css += 'position: absolute;'
-css += 'height: 1em;'
-css += 'width: 2px;'
-css += 'margin-left: -1px;'
-css += 'margin-right: -1px;'
-css += 'background: #444;'
-css += '-webkit-animation: blink 1s steps(2, start) infinite;'
-css += 'animation: blink 1s steps(2, start) infinite;'
-css += '}'
-css += '@-webkit-keyframes blink {'
-css += 'to { visibility: hidden; }'
-css += '}'
-css += '@keyframes blink {'
-css += 'to { visibility: hidden; }'
-css += '}'
-
-# key codes:
+
+
+ignore_key_codes =
+ '18': true # alt
+ '20': true # capslock
+ '17': true # ctrl
+ '144': true # numlock
+ '16': true # shift
+ '91': true # windows "start" key
+# key codes: (valid on keydown, not keypress)
KEY_LEFT = 37
KEY_UP = 38
KEY_RIGHT = 39
KEY_PAGE_UP = 33
KEY_PAGE_DOWN = 34
KEY_TAB = 9
+control_key_codes = # we react to these, but they aren't typing
+ '37': KEY_LEFT
+ '38': KEY_UP
+ '39': KEY_RIGHT
+ '40': KEY_DOWN
+ '35': KEY_END
+ '8': KEY_BACKSPACE
+ '46': KEY_DELETE
+ '13': KEY_ENTER
+ '27': KEY_ESCAPE
+ '36': KEY_HOME
+ '45': KEY_INSERT
+ '33': KEY_PAGE_UP
+ '34': KEY_PAGE_DOWN
+ '9': KEY_TAB
instantiate_tree = (tree, parent) ->
- for c in tree
+ remove = []
+ for c, i in tree
switch c.type
- when TYPE_TEXT
+ when 'text'
c.el = parent.ownerDocument.createTextNode c.text
parent.appendChild c.el
- when TYPE_TAG
+ when 'tag'
+ if c.name in ['script', 'object', 'iframe', 'link']
+ # TODO put placeholders instead
+ remove.unshift i
+ continue
# TODO create in correct namespace
c.el = parent.ownerDocument.createElement c.name
for k, v of c.attrs
# FIXME if attr_whitelist[k]?
- c.el.setAttribute k, v
+ if valid_attr_regex.test k
+ unless js_attr_regex.test k
+ c.el.setAttribute k, v
parent.appendChild c.el
if c.children.length
instantiate_tree c.children, c.el
+ for i in remove
+ tree.splice i, 1
-traverse_tree = (tree, state, cb) ->
+traverse_tree = (tree, cb) ->
+ done = false
for c in tree
- cb c, state
- break if state.done?
+ done = cb c
+ return done if done
if c.children.length
- traverse_tree c.children, state, cb
- break if state.done?
- return state
-# find the next element in tree (and decendants) that is after n and can contain text
-# TODO make it so cursor can go places that don't have text but could
-find_next_cursor_position = (tree, n, i) ->
- if n? and n.type is TYPE_TEXT and n.text.length > i
- orig_xyh = cursor_to_xyh n, i
- unless orig_xyh?
- console.log "ERROR: couldn't find xy for current cursor location"
- return
- for next_i in [i+1 .. n.text.length] # inclusive is valid (after last char)
- next_xyh = cursor_to_xyh n, next_i
- if next_xyh?
- if next_xyh.x > orig_xyh.x or next_xyh.y > orig_xyh.y
- return [n, next_i]
- found = traverse_tree tree, before: n?, (node, state) ->
- if node.type is TYPE_TEXT and state.before is false
- state.node = node
- state.done = true
- if node is n
- state.before = false
- if found.node?
- return [found.node, 0]
- return null
+ done = traverse_tree c.children, cb
+ return done if done
+ return done
-# TODO make it so cursor can go places that don't have text but could
-find_prev_cursor_position = (tree, n, i) ->
- if n? and n.type is TYPE_TEXT and i > 0
- orig_xyh = cursor_to_xyh n, i
- unless orig_xyh?
- console.log "ERROR: couldn't find xy for current cursor location"
- return
- for prev_i in [i-1 .. 0]
- prev_xyh = cursor_to_xyh n, prev_i
- if prev_xyh?
- if prev_xyh.x < orig_xyh.x or prev_xyh.y < orig_xyh.y
- return [n, prev_i]
- return [n, i - 1]
- found = traverse_tree tree, before: n?, (node, state) ->
- if node.type is TYPE_TEXT
- unless n?
- state.node = node
- state.done = true
- if node is n
- if state.prev?
- state.node = state.prev
- state.done = true
- if node
- state.prev = node
- if found.node?
- return [found.node, found.node.text.length]
+first_cursor_position = (tree) ->
+ found = null
+ traverse_tree tree, (node, state) ->
+ if node.type is 'text'
+ cursor = new_cursor_position n: node, i: 0
+ if cursor?
+ found = cursor
+ return true # done traversing
+ return false # not done traversing
+ return found # maybe null
+
+# this will fail when text has non-locatable cursor positions
+find_next_cursor_position = (tree, cursor) ->
+ if cursor.n.type is 'text' and cursor.n.text.length > cursor.i
+ new_cursor = new_cursor_position n: cursor.n, i: cursor.i + 1
+ if new_cursor?
+ return new_cursor
+ state_before = true
+ found = null
+ traverse_tree tree, (node, state) ->
+ if node.type is 'text' and state_before is false
+ new_cursor = new_cursor_position n: node, i: 0
+ if new_cursor?
+ found = new_cursor
+ return true # done traversing
+ if node is cursor.n
+ state_before = false
+ return false # not done traversing
+ if found?
+ return found
return null
-find_loc_cursor_position = (tree, loc) ->
- for c in tree
- if c.type is TYPE_TAG or c.type is TYPE_TEXT
- bounds = get_el_bounds c.el
- continue if loc.x < bounds.x
- continue if loc.x > bounds.x + bounds.w
- continue if loc.y < bounds.y
- continue if loc.y > bounds.y + bounds.h
- if c.children.length
- ret = find_loc_cursor_position c.children, loc
+last_cursor_position = (tree) ->
+ found = null
+ traverse_tree tree, (node) ->
+ if node.type is 'text'
+ cursor = new_cursor_position n: node, i: node.text.length
+ if cursor?
+ found = cursor
+ return false # not done traversing
+ return found # maybe null
+
+# this will fail when text has non-locatable cursor positions
+find_prev_cursor_position = (tree, cursor) ->
+ if cursor.n.type is 'text' and cursor.i > 0
+ new_cursor = new_cursor_position n: cursor.n, i: cursor.i - 1
+ if new_cursor?
+ return new_cursor
+ found_prev = null
+ found = null
+ traverse_tree tree, (node) ->
+ if node is cursor.n
+ found = found_prev # maybe null
+ return true # done traversing
+ if node.type is 'text'
+ new_cursor = new_cursor_position n: node, i: node.text.length
+ if new_cursor?
+ found_prev = new_cursor
+ return false # not done traversing
+ return found # maybe null
+
+find_up_cursor_position = (tree, cursor, ideal_x) ->
+ new_cursor = cursor
+ # go prev until we're higher on y axis
+ while new_cursor.y >= cursor.y
+ new_cursor = find_prev_cursor_position tree, new_cursor
+ return null unless new_cursor?
+ # done early if we're already left of old cursor position
+ if new_cursor.x <= ideal_x
+ return new_cursor
+ target_y = new_cursor.y
+ # search leftward, until we find the closest position
+ # new_cursor is the prev-most position we've checked
+ # prev_cursor is the older value, so it's not as prev as new_cursor
+ while new_cursor.x > ideal_x and new_cursor.y is target_y
+ prev_cursor = new_cursor
+ new_cursor = find_prev_cursor_position tree, new_cursor
+ break unless new_cursor?
+ # move cursor to prev_cursor or new_cursor
+ if new_cursor?
+ if new_cursor.y is target_y
+ # both valid, and on the same line, use closest
+ if (ideal_x - new_cursor.x) < (prev_cursor.x - ideal_x)
+ return new_cursor
+ else
+ return prev_cursor
+ else
+ # new_cursor on wrong line, use prev_cursor
+ return prev_cursor
+ else
+ # can't go any further prev, use prev_cursor
+ return prev_cursor
+
+find_down_cursor_position = (tree, cursor, ideal_x) ->
+ new_cursor = cursor
+ # go next until we move on the y axis
+ while new_cursor.y <= cursor.y
+ new_cursor = find_next_cursor_position tree, new_cursor
+ return null unless new_cursor?
+ # done early if we're already right of old cursor position
+ if new_cursor.x >= ideal_x
+ # this would be strange, but could happen due to runaround
+ return new_cursor
+ target_y = new_cursor.y
+ # search rightward, until we find the closest position
+ # new_cursor is the next-most position we've checked
+ # prev_cursor is the older value, so it's not as next as new_cursor
+ while new_cursor.x < ideal_x and new_cursor.y is target_y
+ prev_cursor = new_cursor
+ new_cursor = find_next_cursor_position tree, new_cursor
+ break unless new_cursor?
+ # move cursor to prev_cursor or new_cursor
+ if new_cursor?
+ if new_cursor.y is target_y
+ # both valid, and on the same line, use closest
+ if (new_cursor.x - ideal_x) < (ideal_x - prev_cursor.x)
+ return new_cursor
+ else
+ return prev_cursor
+ else
+ # new_cursor on wrong line, use prev_cursor
+ return prev_cursor
+ else
+ # can't go any further prev, use prev_cursor
+ return prev_cursor
+
+xy_to_cursor = (tree, xy) ->
+ for n in tree
+ if n.type is 'tag' or n.type is 'text'
+ bounds = get_el_bounds n.el
+ continue if xy.x < bounds.x
+ continue if xy.x > bounds.x + bounds.w
+ continue if xy.y < bounds.y
+ continue if xy.y > bounds.y + bounds.h
+ if n.children.length
+ ret = xy_to_cursor n.children, xy
return ret if ret?
- if c.type is TYPE_TEXT
+ if n.type is 'text'
# click is within bounding box that contains all text.
- return [c, 0] if c.text.length is 0
- before_i = 0
- before = cursor_to_xyh c, before_i
- unless before?
- console.log "error: failed to find cursor pixel location for start of", c
- return
- after_i = c.text.length
- after = cursor_to_xyh c, after_i
- unless after?
- console.log "error: failed to find cursor pixel location for end of", c
- return
- if loc.y < before.y + before.h and loc.x < before.x
+ if n.text.length is 0
+ ret = new_cursor_position n: n, i: 0
+ return ret if ret?
+ continue
+ before = new_cursor_position n: n, i: 0
+ continue unless before?
+ after = new_cursor_position n: n, i: n.text.length
+ continue unless after?
+ if xy.y < before.y + before.h and xy.x < before.x
# console.log 'before first char on first line'
continue
- if loc.y > after.y and loc.x > after.x
+ if xy.y > after.y and xy.x > after.x
# console.log 'after last char on last line'
continue
- if loc.y < before.y
- console.log "Warning: click in bounding box but above first line"
+ if xy.y < before.y
+ console.log "Warning: click in text bounding box but above first line"
continue # above first line (runaround?)
- if loc.y > after.y + after.h
- console.log "Warning: click in bounding box but below last line", loc.y, after.y, after.h
+ if xy.y > after.y + after.h
+ console.log "Warning: click in text bounding box but below last line", xy.y, after.y, after.h
continue # below last line (shouldn't happen?)
- while after_i - before_i > 1
- cur_i = Math.round((before_i + after_i) / 2)
- cur = cursor_to_xyh c, cur_i
- unless loc?
- console.log "error: failed to find cursor pixel location for", c, cur_i
- return
- if loc.y < cur.y or (loc.y <= cur.y + cur.h and loc.x < cur.x)
- after_i = cur_i
+ while after.i - before.i > 1
+ guess_i = Math.round((before.i + after.i) / 2)
+ cur = new_cursor_position n: n, i: guess_i
+ unless cur?
+ console.log "error: failed to find cursor pixel location for", n, guess_i
+ before = null
+ break
+ if xy.y < cur.y or (xy.y <= cur.y + cur.h and xy.x < cur.x)
after = cur
else
- before_i = cur_i
before = cur
+ continue unless before? # signals failure to find a cursor position
# which one is closest?
- if Math.abs(before.x - loc.x) < Math.abs(after.x - loc.x)
- return [c, before_i]
+ if Math.abs(before.x - xy.x) < Math.abs(after.x - xy.x)
+ return before
else
- return [c, after_i]
+ return after
return null
# browsers collapse these (html5 spec calls these "space characters")
is_space = (chr) ->
return is_space_code chr.charCodeAt 0
+tree_remove_empty_text_nodes = (tree) ->
+ empties = []
+ traverse_tree tree, (n) ->
+ if n.type is 'text'
+ if n.text.length is 0
+ empties.unshift n
+ return false # not done traversing
+ for n in empties
+ # don't completely empty the tree
+ if tree.length is 1
+ if tree[0].type is 'text'
+ console.log "oop, leaving a blank node because it's the only thing"
+ return
+ n.el.parentNode.removeChild n.el
+ for c, i in n.parent.children
+ if c is n
+ n.parent.children.splice i, 1
+ break
+
# pass a array of nodes (from parser library, ie it should have .el and .text)
tree_dedup_space = (tree) ->
prev = cur = next = null
first = true
removed_char = null
+ tree_remove_empty_text_nodes(tree)
+
iterate = (tree, cb) ->
for n in tree
- if n.type is TYPE_TEXT
+ if n.type is 'text'
i = 0
while i < n.text.length # don't foreach, cb might remove chars
advance = cb n, i
if advance
i += 1
- if n.type is TYPE_TAG
+ if n.type is 'tag'
block = is_display_block n.el
if block
cb null
if block
cb null
# remove cur char
- remove = ->
- removed_char = cur.text.charAt(cur_i)
- cur.el.textContent = cur.text = (cur.text.substr 0, cur_i) + (cur.text.substr cur_i + 1)
- if next is cur # in same text node
- if next_i is 0
- throw "how is this possible?"
- next_i -= 1
- return true
- # undo remove()
- put_it_back = ->
- cur.el.textContent = cur.text = (cur.text.substr 0, cur_i) + removed_char + (cur.text.substr cur_i)
- if next is cur # in same text node
- next_i += 1
- return false
+ remove = (undo) ->
+ if undo
+ cur.el.textContent = cur.text = (cur.text.substr 0, cur_i) + removed_char + (cur.text.substr cur_i)
+ if next is cur # in same text node
+ next_i += 1
+ return -1
+ else
+ removed_char = cur.text.charAt(cur_i)
+ cur.el.textContent = cur.text = (cur.text.substr 0, cur_i) + (cur.text.substr cur_i + 1)
+ if next is cur # in same text node
+ if next_i is 0
+ throw "how is this possible?"
+ next_i -= 1
+ return 1
+ replace_with_space = (undo) ->
+ if undo
+ cur.text = (cur.text.substr 0, cur_i) + removed_char + (cur.text.substr cur_i + 1)
+ cur.el.textContent = cur.text
+ else
+ removed_char = cur.text.charAt(cur_i)
+ if removed_char isnt ' '
+ cur.text = (cur.text.substr 0, cur_i) + ' ' + (cur.text.substr cur_i + 1)
+ cur.el.textContent = cur.text
+ return 0
# return true if cur was removed from the dom (ie re-use same prev)
operate = ->
# cur definitately set
# prev and/or next might be null, indicating the start/end of a display:block
return false unless is_space_code cur.text.charCodeAt cur_i
+ fixers = [remove, replace_with_space]
+ # check for common case: single whitespace surrounded by non-whitespace chars
+ if prev? and next?
+ unless (is_space_code prev.text.charCodeAt prev_i) or (is_space_code next.text.charCodeAt next_i)
+ dbg = cur.text.charCodeAt cur_i
+ if cur.text.charAt(cur_i) is ' ' # perens required
+ # single space can't collapse, doesn't need fixin'
+ return false
+ else
+ # tab, newline, etc, can't collapse, but maybe should be replaced
+ fixers = [replace_with_space]
bounds = text_range_bounds cur.el, cur_i, cur_i + 1
# consistent cases:
# 1. zero rects returned by getClientRects() means collapsed space
return remove()
# 2. width greater than zero means visible space
if bounds.w > 0
- return false
+ # has bounds, don't try removing
+ fixers = [replace_with_space]
# now the weird edge cases...
#
# firefox and chromium both report zero width for characters at the end
# collapsed spaces via the range/bounds api, so...
#
# remove it from the dom, and if prev or next moves, put it back.
+ #
+ # this block (try changing it, put it back if something moves) is also
+ # used on collapsable whitespace characters besides space. In this case
+ # the character is replaced with a normal space character instead of
+ # removed
if prev? and not prev_px?
- prev_px = cursor_to_xyh prev, prev_i
+ prev_px = new_cursor_position n: prev, i: prev_i
if next? and not next_px?
- next_px = cursor_to_xyh next, next_i
+ next_px = new_cursor_position n: next, i: next_i
#if prev is null and next is null
# parent_px = cur.parent.el.getBoundingClientRect()
- remove()
- if prev?
- if prev_px?
- new_prev_px = cursor_to_xyh prev, prev_i
- if new_prev_px.x isnt prev_px.x or new_prev_px.y isnt prev_px.y
- return put_it_back()
- else
- console.log "this shouldn't happen, we remove spaces that don't locate"
- if next?
- if next_px?
- new_next_px = cursor_to_xyh next, next_i
- if new_next_px.x isnt next_px.x or new_next_px.y isnt next_px.y
- return put_it_back()
- #else
- # console.log "removing space becase space after it is collapsed"
- # if there's no prev or next (single space inside a block-level element?) check
- # TODO scrapt this, or fix it so it works when there's no parent
- # if prev is null and next is null
- # new_parent_px = cur.parent.el.getBoundingClientRect()
- # if new_parent_px.left isnt parent_px.left or new_parent_px.top isnt parent_px.top or new_parent_px.right isnt parent_px.right or new_parent_px.bottom isnt parent_px.bottom
- # console.log "WEIRD: parent moved"
- # return put_it_back()
- # we didn't put it back
- return true
+ undo_arg = true # just for readabality
+ removed = 0
+ for fixer in fixers
+ break if removed > 0
+ removed += fixer()
+ need_undo = false
+ if prev?
+ if prev_px?
+ new_prev_px = new_cursor_position n: prev, i: prev_i
+ if new_prev_px?
+ if new_prev_px.x isnt prev_px.x or new_prev_px.y isnt prev_px.y
+ need_undo = true
+ else
+ need_undo = true
+ else
+ console.log "this shouldn't happen, we remove spaces that don't locate"
+ if next? and not need_undo
+ if next_px?
+ new_next_px = new_cursor_position n: next, i: next_i
+ if new_next_px?
+ if new_next_px.x isnt next_px.x or new_next_px.y isnt next_px.y
+ need_undo = true
+ else
+ need_undo = true
+ #else
+ # console.log "removing space becase space after it is collapsed"
+ if need_undo
+ removed += fixer undo_arg
+ if removed > 0
+ return true
+ else
+ return false
# pass null at start/end of display:block
queue = (n, i) ->
next = n
iterate tree, queue
queue null
+ tree_remove_empty_text_nodes(tree)
+
class PeachHTML5Editor
- constructor: (in_el, options = {}) ->
+ # Options: (all optional)
+ # editor_id: "id" attribute for outer-most element created by/for editor
+ # css_file: filename of a css file to style editable content
+ # on_init: callback for when the editable content is in place
+ constructor: (in_el, options) ->
+ @options = options ? {}
@in_el = in_el
- @tree = []
- @iframe = domify iframe: class: 'peach_html5_editor'
+ @tree = null # array of Nodes, all editable content
+ @tree_parent = null # @tree is this.children. .el might === @idoc.body
+ @matting = []
+ @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
+ @wrap2_offset = null
+ @wrap2_height = null # including padding
+ @iframe = null # iframe to hold editable content
+ @idoc = null # "document" object for @iframe
@cursor = null
@cursor_el = null
@cursor_visible = false
- opt_fragment = options.fragment ? true
+ @cursor_ideal_x = null
+ @poll_for_blur_timeout = null
+ opt_fragment = @options.fragment ? true
@parser_opts = {}
if opt_fragment
@parser_opts.fragment = 'body'
- @iframe.onload = =>
- @idoc = @iframe.contentDocument
-
- ignore_key_codes =
- '18': true # alt
- '20': true # capslock
- '17': true # ctrl
- '144': true # numlock
- '16': true # shift
- '91': true # windows "start" key
- control_key_codes = # we react to these, but they aren't typing
- '37': KEY_LEFT
- '38': KEY_UP
- '39': KEY_RIGHT
- '40': KEY_DOWN
- '35': KEY_END
- '8': KEY_BACKSPACE
- '46': KEY_DELETE
- '13': KEY_ENTER
- '27': KEY_ESCAPE
- '36': KEY_HOME
- '45': KEY_INSERT
- '33': KEY_PAGE_UP
- '34': KEY_PAGE_DOWN
- '9': KEY_TAB
-
- @idoc.body.onclick = (e) =>
- # idoc.body.offset().left/top
- new_cursor = find_loc_cursor_position @tree, x: e.pageX, y: e.pageY
+ @outer_iframe = domify document, iframe: {}
+ outer_iframe_style = 'border: none !important; margin: 0 !important; padding: 0 !important; height: 100% !important; width: 100% !important;'
+ if @options.editor_id?
+ @outer_iframe.setAttribute 'id', @options.editor_id
+ @outer_iframe.onload = =>
+ @outer_idoc = @outer_iframe.contentDocument
+ icss = domify @outer_idoc, style: children: [
+ domify @outer_idoc, text: css
+ ]
+ @outer_idoc.head.appendChild icss
+ @iframe = domify @outer_idoc, iframe: sandbox: 'allow-same-origin allow-scripts'
+ @iframe.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" ]
+ @wrap2 = domify @outer_idoc, div: id: 'wrap2', children: [
+ domify @outer_idoc, div: id: 'wrap3', children: [
+ @iframe
+ @overlay = domify @outer_idoc, div: id: 'overlay'
+ ]
+ ]
+ ]
+ )
+ outer_wrap = domify document, div: class: 'peach_html5_editor'
+ @in_el.parentNode.appendChild outer_wrap
+ outer_bounds = get_el_bounds outer_wrap
+ if outer_bounds.w < 300
+ outer_bounds.w = 300
+ if outer_bounds.h < 300
+ outer_bounds.h = 300
+ outer_iframe_style += "width: #{outer_bounds.w}px; height: #{outer_bounds.h}px;"
+ @outer_iframe.setAttribute 'style', outer_iframe_style
+ css = @generate_outer_css w: outer_bounds.w, h: outer_bounds.h
+ outer_wrap.appendChild @outer_iframe
+ 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
+ @overlay.ondoubleclick = (e) =>
+ @have_focus()
+ return event_return e, @ondoubleclick e
+ @outer_idoc.body.onkeyup = (e) =>
+ @have_focus()
+ return event_return e, @onkeyup e
+ @outer_idoc.body.onkeydown = (e) =>
+ @have_focus()
+ return event_return e, @onkeydown e
+ @outer_idoc.body.onkeypress = (e) =>
+ @have_focus()
+ return event_return e, @onkeypress e
+ @load_html @in_el.value
+ if @options.on_init?
+ @options.on_init()
+ generate_outer_css: (args) ->
+ w = args.w ? 300
+ h = args.h ? 300
+ inner_padding = args.inner_padding ? overlay_padding
+ frame_width = args.frame_width ? inner_padding
+ occupy = (left, top = left, right = left, bottom = top) ->
+ w -= left + right
+ h -= top + bottom
+ return Math.max(left, top, right, bottom)
+ ret = ''
+ ret += 'body {'
+ ret += 'margin: 0;'
+ ret += 'padding: 0;'
+ ret += 'color: black;'
+ ret += 'background: white;'
+ ret += '}'
+ ret += '#wrap1 {'
+ ret += "border: #{occupy 1}px solid black;"
+ ret += "padding: #{occupy frame_width}px;"
+ ret += '}'
+ ret += '#wrap2 {'
+ ret += "border: #{occupy 1}px solid black;"
+ @wrap2_height = h # including padding because padding scrolls
+ ret += "padding: #{occupy inner_padding}px;"
+ ret += "padding-right: #{inner_padding + occupy 0, 0, 15, 0}px;" # for scroll bar
+ ret += "width: #{w}px;"
+ ret += "height: #{h}px;"
+ ret += 'overflow-x: hidden;'
+ ret += 'overflow-y: scroll;'
+ ret += '}'
+ ret += '#wrap3 {'
+ ret += 'position: relative;'
+ ret += "width: #{w}px;"
+ ret += "min-height: #{h}px;"
+ ret += '}'
+ ret += 'iframe {'
+ ret += 'box-sizing: border-box;'
+ ret += 'margin: 0;'
+ ret += 'border: none;'
+ ret += 'padding: 0;'
+ ret += "width: #{w}px;"
+ #ret += "height: #{h}px;" # height auto-set when content set/changed
+ ret += '-ms-user-select: none;'
+ ret += '-webkit-user-select: none;'
+ ret += '-moz-user-select: none;'
+ ret += 'user-select: none;'
+ ret += '}'
+ ret += '#overlay {'
+ ret += 'position: absolute;'
+ ret += "left: -#{inner_padding}px;"
+ ret += "top: -#{inner_padding}px;"
+ ret += "right: -#{inner_padding}px;"
+ ret += "bottom: -#{inner_padding}px;"
+ ret += 'overflow: hidden;'
+ ret += '}'
+ ret += '.lightbox {'
+ ret += 'position: absolute;'
+ ret += 'background: rgba(100,100,100,0.2);'
+ ret += '}'
+ ret += '#cursor {'
+ ret += 'position: absolute;'
+ ret += 'width: 2px;'
+ ret += 'background: linear-gradient(0deg, rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1));'
+ ret += 'background-size: 200% 200%;'
+ ret += '-webkit-animation: blink 1s linear normal infinite;'
+ ret += 'animation: blink 1s linear normal infinite;'
+ ret += '}'
+ ret += '@-webkit-keyframes blink {'
+ ret += '0%{background-position:0% 0%}'
+ ret += '100%{background-position:0% -100%}'
+ ret += '}'
+ ret += '@keyframes blink { '
+ ret += '0%{background-position:0% 0%}'
+ ret += '100%{background-position:0% -100%}'
+ ret += '}'
+ ret += '.ann_box {'
+ ret += 'z-index: 5;'
+ ret += 'position: absolute;'
+ ret += 'border: 1px solid rgba(0,0,0,0.1);'
+ ret += 'outline: 1px solid rgba(255,255,255,0.1);' # in case there's a black background
+ ret += '}'
+ ret += '.ann_tag {'
+ ret += 'z-index: 10;'
+ ret += 'position: absolute;'
+ ret += 'font-size: 8px;'
+ ret += 'white-space: pre;'
+ ret += 'background: rgba(255,255,255,0.4);'
+ ret += '-ms-user-select: none;'
+ ret += '-webkit-user-select: none;'
+ ret += '-moz-user-select: none;'
+ ret += 'user-select: none;'
+ ret += '}'
+ return ret
+ overlay_event_to_inner_xy: (e) ->
+ unless @wrap2_offset?
+ @wrap2_offset = get_el_bounds @wrap2
+ x = e.pageX - overlay_padding
+ y = e.pageY - overlay_padding + @wrap2.scrollTop
+ return x: x - @wrap2_offset.x, y: y - @wrap2_offset.y
+ onclick: (e) ->
+ xy = @overlay_event_to_inner_xy e
+ new_cursor = xy_to_cursor @tree, xy
+ if new_cursor?
+ @move_cursor new_cursor
+ else
+ @kill_cursor()
+ return false
+ ondoubleclick: (e) ->
+ return false
+ onkeyup: (e) ->
+ return if e.ctrlKey
+ return false if ignore_key_codes[e.keyCode]?
+ #return false if control_key_codes[e.keyCode]?
+ onkeydown: (e) ->
+ return if e.ctrlKey
+ return false if ignore_key_codes[e.keyCode]?
+ #return false if control_key_codes[e.keyCode]?
+ switch e.keyCode
+ when KEY_LEFT
+ if @cursor?
+ new_cursor = find_prev_cursor_position @tree, @cursor
+ else
+ new_cursor = first_cursor_position @tree
if new_cursor?
@move_cursor new_cursor
- @idoc.body.onkeyup = (e) =>
- return if e.ctrlKey
- return false if ignore_key_codes[e.keyCode]?
- #return false if control_key_codes[e.keyCode]?
- @idoc.body.onkeydown = (e) =>
- return if e.ctrlKey
- return false if ignore_key_codes[e.keyCode]?
- #return false if control_key_codes[e.keyCode]?
- switch e.keyCode
- when KEY_LEFT
- if @cursor?
- new_cursor = find_prev_cursor_position @tree, @cursor...
- if new_cursor?
- @move_cursor new_cursor
- else
- for c in @tree
- new_cursor = find_next_cursor_position @tree, c, -1
- if new_cursor?
- @move_cursor new_cursor
- break
- return false
- when KEY_UP
- return false
- when KEY_RIGHT
- if @cursor?
- new_cursor = find_next_cursor_position @tree, @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
- return false
- when KEY_DOWN
- return false
- when KEY_END
- return false
- when KEY_BACKSPACE
- return false unless @cursor?
- return false unless @cursor[1] > 0
- @cursor[0].text = @cursor[0].text.substr(0, @cursor[1] - 1) + @cursor[0].text.substr(@cursor[1])
- @cursor[0].el.nodeValue = @cursor[0].text
- @move_cursor [@cursor[0], @cursor[1] - 1]
- return false
- when KEY_DELETE
- return false unless @cursor?
- return false unless @cursor[1] < @cursor[0].text.length
- @cursor[0].text = @cursor[0].text.substr(0, @cursor[1]) + @cursor[0].text.substr(@cursor[1] + 1)
- @cursor[0].el.nodeValue = @cursor[0].text
- @move_cursor [@cursor[0], @cursor[1]]
- return false
- when KEY_ENTER
- return false
- when KEY_ESCAPE
- return false
- when KEY_HOME
- return false
- when KEY_INSERT
- return false
- when KEY_PAGE_UP
- return false
- when KEY_PAGE_DOWN
- return false
- when KEY_TAB
- return false
- @idoc.body.onkeypress = (e) =>
- return if e.ctrlKey
- return false if ignore_key_codes[e.keyCode]?
- return false if control_key_codes[e.keyCode]? # handled in keydown
- char = e.charCode ? e.keyCode
- if char and @cursor?
- char = String.fromCharCode char
- if @cursor[1] is 0
- @cursor[0].text = char + @cursor[0].text
- else if @cursor[1] is @cursor[0].text.length - 1
- @cursor[0].text += char
- else
- @cursor[0].text =
- @cursor[0].text.substr(0, @cursor[1]) +
- char +
- @cursor[0].text.substr(@cursor[1])
- @cursor[0].el.nodeValue = @cursor[0].text
- @move_cursor [@cursor[0], @cursor[1] + 1]
- @changed()
return false
- if options.stylesheet # TODO test this
- istyle = @idoc.createElement 'style'
- istyle.setAttribute 'src', options.stylesheet
- @idoc.head.appendChild istyle
- icss = @idoc.createElement 'style'
- icss.appendChild @idoc.createTextNode css
- @idoc.head.appendChild icss
- @load_html @in_el.value
-
- @in_el.parentNode.appendChild @iframe
- clear_dom: ->
- # FIXME add parent node, so we don't empty body and delete cursor_el
+ when KEY_RIGHT
+ if @cursor?
+ new_cursor = find_next_cursor_position @tree, @cursor
+ else
+ new_cursor = last_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ return false
+ when KEY_UP
+ if @cursor?
+ new_cursor = find_up_cursor_position @tree, @cursor, @cursor_ideal_x
+ if new_cursor?
+ saved_ideal_x = @cursor_ideal_x
+ @move_cursor new_cursor
+ @cursor_ideal_x = saved_ideal_x
+ else
+ # move cursor to first position in document
+ new_cursor = first_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ return false
+ when KEY_DOWN
+ if @cursor?
+ new_cursor = find_down_cursor_position @tree, @cursor, @cursor_ideal_x
+ if new_cursor?
+ saved_ideal_x = @cursor_ideal_x
+ @move_cursor new_cursor
+ @cursor_ideal_x = saved_ideal_x
+ else
+ # move cursor to first position in document
+ new_cursor = last_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ return false
+ when KEY_END
+ new_cursor = last_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ return false
+ when KEY_BACKSPACE
+ @on_key_backspace e
+ return false
+ when KEY_DELETE
+ return false unless @cursor?
+ new_cursor = find_next_cursor_position @tree, n: @cursor.n, i: @cursor.i
+ # try moving cursor right and then running backspace code
+ # TODO replace this hack with a real implementation
+ if new_cursor?
+ # try to detect common case where cursor goes inside an block,
+ # but doesn't pass a character (and advance one more in that case)
+ if new_cursor.n isnt @cursor.n and new_cursor.i is 0
+ if new_cursor.n.type is 'text' and new_cursor.n.text.length > 0
+ if new_cursor.n.parent?
+ unless @is_display_block new_cursor.n.parent
+ # FIXME should test run sibling
+ new_cursor = new_cursor_position n: new_cursor.n, i: new_cursor.i + 1
+ if new_cursor?
+ if new_cursor.n isnt @cursor.n or new_cursor.i isnt @cursor.i
+ @move_cursor new_cursor
+ @on_key_backspace e
+ return false
+ when KEY_ENTER
+ @on_key_enter e
+ return false
+ when KEY_ESCAPE
+ @kill_cursor()
+ return false
+ when KEY_HOME
+ new_cursor = first_cursor_position @tree
+ if new_cursor?
+ @move_cursor new_cursor
+ return false
+ when KEY_INSERT
+ return false
+ when KEY_PAGE_UP
+ @on_page_up_key e
+ return false
+ when KEY_PAGE_DOWN
+ @on_page_down_key e
+ return false
+ when KEY_TAB
+ return false
+ onkeypress: (e) ->
+ return if e.ctrlKey
+ return false if ignore_key_codes[e.keyCode]?
+ char = e.charCode ? e.keyCode
+ if char and @cursor?
+ char = String.fromCharCode char
+ @insert_character @cursor.n, @cursor.i, char
+ @text_cleanup @cursor.n
+ @changed()
+ new_cursor = new_cursor_position n: @cursor.n, i: @cursor.i + 1
+ if new_cursor
+ @move_cursor new_cursor
+ else
+ console.log "ERROR: couldn't find cursor position after insert"
+ @kill_cursor()
+ return false
+ on_key_enter: (e) -> # enter key pressed
+ return unless @cursor_visible
+ cur_block = @cursor.n
+ loop
+ if cur_block.type is 'tag'
+ if is_display_block cur_block.el
+ break
+ return unless cur_block.parent?
+ cur_block = cur_block.parent
+ # find array to insert new element into
+ if cur_block.parent is @tree_parent # top-level
+ parent_el = @idoc.body
+ pc = @tree
+ else
+ parent_el = cur_block.parent.el
+ pc = cur_block.parent.children
+ # find index of current block in its parent
+ for n, i in pc
+ break if n is cur_block
+ i += 1 # we want to be after it
+ if i < pc.length
+ before = pc[i].el
+ else
+ before = null
+ # TODO if content after cursor
+ # TODO new block is empty
+ new_text = new peach_parser.Node 'text', text: ' '
+ new_node = new peach_parser.Node 'tag', name: 'p', parent: cur_block.parent, attrs: {style: 'white-space: pre-wrap'}, children: [new_text]
+ new_text.parent = new_node
+ new_text.el = domify @idoc, text: ' '
+ new_node.el = domify @idoc, p: style: 'white-space: pre-wrap', children: [new_text.el]
+ pc.splice i, 0, new_node
+ parent_el.insertBefore new_node.el, before
+ @changed()
+ new_cursor = new_cursor_position n: new_text, i: 0
+ throw 'bork bork' unless new_cursor?
+ @move_cursor new_cursor
+ # TODO move content past cursor into this new block
+ # unlike the global function, this takes a Node, not an element
+ is_display_block: (n) ->
+ # TODO stop calling global function, merge it into here, use iframe's window object
+ return false unless n.type is 'tag'
+ return is_display_block n.el
+ find_block_parent: (n) ->
+ loop
+ n = n.parent
+ return null unless n?
+ return n if @is_display_block n
+ return n if n is @tree_parent
+ return null
+ # return a flat array of nodes (text, <br>, and later also inline-block)
+ # that are flowing/wrapping together. n can be the containing block, or any
+ # element inside it.
+ get_text_run: (n) ->
+ ret = []
+ if @is_display_block n
+ block = n
+ else
+ block = @find_block_parent n
+ return ret unless block?
+ traverse_tree block.children, (n) =>
+ if n.type is 'text'
+ ret.push n
+ else if n.type is 'tag'
+ if n.name is 'br'
+ ret.push n
+ else
+ disp = @computed_style n
+ if disp is 'inline-block'
+ ret.push n
+ return false # not done traversing
+ return ret
+ node_is_decendant: (young, old) ->
+ while young? and young != @tree_parent
+ return true if young is old
+ young = young.parent
+ return false
+ # helper for on_key_backspace
+ _merge_left: (state) ->
+ # the node prev to n was not prev to it a moment ago, merge with it if reasonable
+ pi = state.n.parent.children.indexOf(state.n)
+ if pi > 0
+ prev = state.n.parent.children[pi - 1]
+ if prev.type is 'text'
+ state.i = prev.text.length
+ prev.text = prev.el.textContent = prev.text + state.n.text
+ @remove_node state.n
+ state.n = prev
+ state.changed = true
+ state.moved_cursor = true
+ # else # TODO merge possible consecutive matching inline tags at @cursor
+ return state
+ # helper for on_key_backspace
+ # remove n from the dom, also remove its inline parents that are emptied by removing n
+ _backspace_node_helper: (n, run = @get_text_run(n), run_i = run.indexOf(n)) ->
+ block = @find_block_parent n
+ # delete text node
+ @remove_node n
+ # delete any inline parents
+ n = n.parent
+ while n? and n isnt block
+ # bail if the previous node in this run is also inside the same parent
+ if run_i > 0
+ break if @node_is_decendant run[run_i - 1], n
+ # bail if the next node in this run is also inside the same parent
+ if run_i + 1 < run.length
+ break if @node_is_decendant run[run_i + 1], n
+ # move any sibling nodes to parent. These nodes are not in the text run
+ while n.children.length > 0
+ @move_node n.children[0], n.parent, n
+ # remove (now completely empty) inline parent
+ @remove_node n
+ # proceed to outer parent
+ n = n.parent
+ return
+ on_key_backspace: (e) ->
+ return unless @cursor?
+ new_cursor = null
+ run = null
+ changed = true
+ if @cursor.i is 0 # cursor is at start of text node
+ run ?= @get_text_run @cursor.n
+ run_i = run.indexOf(@cursor.n)
+ if run_i is 0 # if at start of text run
+ block = @find_block_parent @cursor.n
+ prev_cursor = find_prev_cursor_position @tree, n: @cursor.n, i: 0
+ if prev_cursor is null # if in first text run of document
+ # do nothing (there's nothing text-like to the left of the cursor)
+ return
+ # else merge with prev/outer text run
+ pcb = @find_block_parent prev_cursor.n
+ while block.children.length > 0
+ @move_node block.children[0], pcb
+ @remove_node block
+ # merge possible consecutive text nodes at @cursor
+ merge_state = n: @cursor.n
+ @_merge_left merge_state
+ @text_cleanup merge_state.n
+ new_cursor = new_cursor_position n: merge_state.n, i: merge_state.i
+ else # at start of text node, but not start of text run
+ prev = run[run_i - 1]
+ if prev.type is 'text' # if previous in text run is text
+ if prev.text.length is 1 # if emptying prev (in text run)
+ @_backspace_node_helper prev, run, run_i
+ merge_state = n: @cursor.n, i: @cursor.i
+ @_merge_left merge_state
+ @text_cleanup merge_state.n
+ new_cursor = new_cursor_position n: merge_state.n, i: merge_state.i
+ else # prev in run is text with muliple chars
+ # delete last character in prev
+ prev.text = prev.text.substr(0, prev.text.length - 1)
+ prev.el.textContent = prev.text
+ @text_cleanup @cursor.n
+ new_cursor = new_cursor_position n: @cursor.n, i: @cursor.i
+ else if prev.name is 'br' or prev.name is 'hr'
+ @_backspace_node_helper prev, run, run_i
+ merge_state = n: @cursor.n, i: @cursor.i
+ @_merge_left merge_state
+ @text_cleanup merge_state.n
+ new_cursor = new_cursor_position n: merge_state.n, i: merge_state.i
+ # FIXME implement this:
+ # else # if prev (in run) is inline-block
+ # if that inline-block has text in it
+ # delete last char in prev inlineblock
+ # if that empties it
+ # delete it
+ # merge left
+ # else
+ # move cursor inside
+ # else
+ # delete prev (inline) block
+ # merge left
+ # auto-delete this @cursor.parent(s) if this empties them
+ else # cursor is not at start of text node
+ run ?= @get_text_run @cursor.n
+ if @cursor.n.text.length is 1 # if emptying text node
+ if run.length is 1 # if emptying text run (of text/br/hr/inline-block)
+ # remove inline-parents of @cursor.n
+ block = @find_block_parent @cursor.n
+ changed = false
+ n = @cursor.n.parent
+ # note: this doesn't use _backspace_node_helper because:
+ # 1. we don't want to delete the target node (we're replacing it's contents)
+ # 2. we want to track whether anything was removed
+ # 3. we know already know there's no other text from this run anywhere
+ while n and n isnt block
+ changed = true
+ while n.children.length > 0
+ @move_node n.children[0], n.parent, n
+ @remove_node n
+ n = n.parent
+ # replace @cursor.n with a single (preserved) space
+ if @cursor.n.text != ' '
+ changed = true
+ @cursor.n.text = @cursor.n.el.textContent = ' '
+ if changed
+ @text_cleanup @cursor.n
+ # place the cursor to the left of that space
+ new_cursor = new_cursor_position n: @cursor.n, i: 0
+ else # emptying a text node (but not a whole text run)
+ # figure out where cursor should land
+ block = @find_block_parent @cursor.n
+ new_cursor = find_prev_cursor_position @tree, n: @cursor.n, i: 0
+ ncb = @find_block_parent new_cursor.n
+ if ncb isnt block
+ new_cursor = find_next_cursor_position @tree, n: @cursor.n, i: 1
+ # delete text node and cleanup emptied parents
+ run_i = run.indexOf @cursor.n
+ @_backspace_node_helper @cursor.n, run, run_i
+ # see if new adjacent siblings should merge
+ # TODO make smarter
+ if run_i > 0 and run_i + 1 < run.length
+ if run[run_i - 1].type is 'text' and run[run_i + 1].type is 'text'
+ merge_state = n: run[run_i + 1]
+ @_merge_left merge_state
+ if merge_state.moved_cursor
+ new_cursor = merge_state
+ # update whitespace preservation
+ @text_cleanup(block)
+ # update cursor x/y in case things moved around
+ if new_cursor?
+ if new_cursor.n.el.parentNode # still in dom after cleanup
+ new_cursor = new_cursor_position n: new_cursor.n, i: new_cursor.i
+ else
+ new_cursor = null
+ else # there's a char left of cursor that we can delete without emptying anything
+ # delete character
+ need_text_cleanup = true
+ if @cursor.i > 1 and @cursor.i < @cursor.n.text.length
+ pre = @cursor.n.text.substr(@cursor.i - 2, 3)
+ post = pre.charAt(0) + pre.charAt(2)
+ if str_has_ws_run(pre) is str_has_ws_run(post)
+ need_text_cleanup = false
+ @remove_character(@cursor.n, @cursor.i - 1)
+ # call text_cleanup if whe created/removed a whitespace run
+ if need_text_cleanup
+ @text_cleanup @cursor.n
+ new_cursor = new_cursor_position n: @cursor.n, i: @cursor.i - 1
+ # mark document changed and move the cursor
+ if changed?
+ @changed()
+ if new_cursor?
+ @move_cursor new_cursor
+ else
+ @kill_cursor()
+ return
+ on_page_up_key: (e) ->
+ if @wrap2.scrollTop is 0
+ return unless @cursor?
+ new_cursor = first_cursor_position @tree
+ if new_cursor?
+ if new_cursor.n isnt @cursor.n or new_cursor.i isnt @cursor.i
+ @move_cursor new_cursor
+ return
+ if @cursor?
+ screen_y = @cursor.y - @wrap2.scrollTop
+ scroll_amount = @wrap2_height - breathing_room
+ @wrap2.scrollTop = Math.max 0, @wrap2.scrollTop - scroll_amount
+ if @cursor?
+ @move_cursor_into_view screen_y + @wrap2.scrollTop
+ on_page_down_key: (e) ->
+ lowest_scrollpos = @wrap2.scrollHeight - @wrap2_height
+ if @wrap2.scrollTop is lowest_scrollpos
+ return unless @cursor?
+ new_cursor = last_cursor_position @tree
+ if new_cursor?
+ if new_cursor.n isnt @cursor.n or new_cursor.i isnt @cursor.i
+ @move_cursor new_cursor
+ return
+ if @cursor?
+ screen_y = @cursor.y - @wrap2.scrollTop
+ scroll_amount = @wrap2_height - breathing_room
+ @wrap2.scrollTop = Math.min lowest_scrollpos, @wrap2.scrollTop + scroll_amount
+ if @cursor?
+ @move_cursor_into_view screen_y + @wrap2.scrollTop
+ return
+ move_cursor_into_view: (y_target) ->
+ return if y_target is @cursor.y
+ was = @cursor
+ y_min = @wrap2.scrollTop
+ unless @wrap2.scrollTop is 0
+ y_min += breathing_room
+ y_max = @wrap2.scrollTop + @wrap2_height
+ unless @wrap2.scrollTop is @wrap2.scrollHeight - @wrap2_height # downmost
+ y_max -= breathing_room
+ y_target = Math.min y_target, y_max
+ y_target = Math.max y_target, y_min
+ if y_target < @cursor.y
+ finder = find_up_cursor_position
+ far_enough = (cur, target_y) ->
+ return cur.y + cur.h <= target_y
+ else
+ finder = find_down_cursor_position
+ far_enough = (cur, y_target) ->
+ return cur.y >= y_target
+ loop
+ cur = finder @tree, was, @cursor_ideal_x
+ break unless cur?
+ break if far_enough cur, y_target
+ was = cur
+ if was is @cursor
+ was = null
+ if was?
+ if was.y + was.h > y_max
+ was = null
+ else if was.y < y_min
+ was = null
+ if cur?
+ if cur.y + cur.h > y_max
+ cur = null
+ else if cur.y < y_min
+ cur = null
+ if cur? and was?
+ # both valid, pick best
+ if cur.y < y_min
+ new_cursor = was
+ else if was.y + was.h > y_max
+ new_cursor = cur
+ else if cur.y - y_target < y_target - was.y
+ new_cursor = cur
+ else
+ new_cursor = was
+ else
+ new_cursor = was ? cur
+ if new_cursor?
+ saved_ideal_x = @cursor_ideal_x
+ @move_cursor new_cursor
+ @cursor_ideal_x = saved_ideal_x
+ return
+ clear_dom: -> # remove all the editable content (and cursor, overlays, etc)
while @idoc.body.childNodes.length
@idoc.body.removeChild @idoc.body.childNodes[0]
- @cursor_visible = false
+ @kill_cursor()
return
load_html: (html) ->
@tree = peach_parser.parse html, @parser_opts
+ if !@tree[0]?.parent
+ @tree = peach_parser.parse '<p style="white-space: pre-wrap"> </p>', @parser_opts
+ @tree_parent = @tree[0]?.parent
+ @tree_parent.el = @idoc.body
@clear_dom()
- instantiate_tree @tree, @idoc.body
+ instantiate_tree @tree, @tree_parent.el
tree_dedup_space @tree
@changed()
changed: ->
- # FIXME don't export cursor placeholder (when cursor is between space characters)
@in_el.onchange = null
- @in_el.value = dom_to_html @tree
+ @in_el.value = @pretty_html @tree
@in_el.onchange = =>
@load_html @in_el.value
- move_cursor: (cursor) ->
- loc = cursor_to_xyh cursor[0], cursor[1]
- unless loc?
- console.log "error: tried to move cursor to position that has no pixel location", cursor[0], cursor[1]
+ @adjust_iframe_height()
+ adjust_iframe_height: ->
+ s = @wrap2.scrollTop
+ # when the content gets shorter, the idoc's body tag will continue to
+ # report the old (too big) height in Chrome. The workaround is to
+ # shrink the iframe before the content height:
+ @iframe.style.height = "10px"
+ h = parseInt(@idoc.body.scrollHeight, 10)
+ @iframe.style.height = "#{h}px"
+ @wrap2.scrollTop = s
+ # does this node have whitespace that would be collapsed by white-space: normal?
+ # note: this checks direct text children, and does _not_ recurse into child tags
+ # tag is a node with type:"tag"
+ # FIXME use new textrun api
+ has_collapsable_space: (tag) ->
+ for n in tag.children
+ if n.type is 'text'
+ for i in [0...n.text.length]
+ code = n.text.charCodeAt i
+ if code isnt 32 and is_space_code code
+ # tab, return
+ return true
+ # check for double spaces that don't surround insert location
+ continue if i is 0
+ if n.text.substr(i - 1, 2) is ' '
+ return true
+ if n.text.length > 0
+ if is_space_code n.text.charCodeAt 0
+ return true
+ if is_space_code n.text.charCodeAt n.text.length - 1
+ return true
+ return false
+ # true if n is text node with only one caracter, and the only child of a tag
+ is_only_char_in_tag: (n, i) ->
+ return false unless n.type is 'text'
+ return false unless n.text.length is 1
+ return false if n.parent is @tree_parent
+ return false unless n.parent.children.length is 1
+ return true
+ # true if n is text node with just a space in it, and the only child of a tag
+ is_lone_space: (n, i) ->
+ return false unless n.type is 'text'
+ return false unless n.text is ' '
+ return false if n.parent is @tree_parent
+ return false unless n.parent.children.length is 1
+ return true
+ # detect special case: typing before a space that's the only thing in a block/doc
+ # reason: enter key creates blocks with just a space in them
+ insert_should_replace: (n, i) ->
+ return false unless i is 0
+ return false unless n.text is ' '
+ return true if n.parent is @tree_parent
+ if n.parent.children.length is 1
+ if n.parent.children[0] is n
+ # n is only child
+ return true
+ return false
+ # after calling this, you MUST call changed() and text_cleanup()
+ insert_character: (n, i, char) ->
+ return if n.parent is @tree_parent # FIXME implement text nodes at top level
+ # insert the character
+ if @insert_should_replace n, i
+ n.text = char
+ else if i is 0
+ n.text = char + n.text
+ else if i is n.text.length
+ # replace the space
+ n.text += char
+ else
+ n.text =
+ n.text.substr(0, i) +
+ char +
+ n.text.substr(i)
+ n.el.nodeValue = n.text
+ # WARNING: after calling this, you MUST call changed() and text_cleanup()
+ remove_character: (n, i) ->
+ n.text = n.text.substr(0, i) + n.text.substr(i + 1)
+ n.el.nodeValue = n.text
+ computed_style: (n, prop) ->
+ if n.type is 'text'
+ n = n.parent
+ style = @iframe.contentWindow.getComputedStyle n.el, null
+ return style.getPropertyValue prop
+ # returns the new white-space value that will preserve spaces for node n
+ preserve_space: (n, ideal_target) ->
+ if n.type is 'text'
+ target = n.parent
+ else
+ target = n
+ while target isnt ideal_target and not target.el.style.whiteSpace
+ unless target?
+ console.log "bug #967123"
+ return
+ target = target.parent
+ ws = ws_props[target.el.style.whiteSpace]?.to_preserve
+ ws ?= 'pre-wrap'
+ target.el.style.whiteSpace = ws
+ @update_style_from_el target
+ return ws
+ update_style_from_el: (n) ->
+ style = n.el.getAttribute 'style'
+ if style?
+ n.attrs.style = style
+ else
+ if n.attrs.style?
+ delete n.attrs.style
+ # call this after you insert or remove inline nodes. It will:
+ # merge consecutive text nodes
+ # remove empty text nodes
+ # adjust white-space property
+ text_cleanup: (n) ->
+ if @is_display_block n
+ block = n
+ else
+ block = @find_block_parent n
+ return unless block?
+ run = @get_text_run block
+ return unless run?
+ # merge consecutive text nodes
+ if run.length > 1
+ i = 1
+ prev = run[0]
+ while i < run.length
+ n = run[i]
+ if prev.type is 'text' and n.type is 'text'
+ if prev.parent is n.parent
+ prev_i = n.parent.children.indexOf prev
+ n_i = n.parent.children.indexOf n
+ if n_i is prev_i + 1
+ prev.text = prev.text + n.text
+ prev.el.textContent = prev.text
+ @remove_node n
+ run.splice i, 1
+ continue # don't increment i or change prev
+ i += 1
+ prev = n
+ # remove empty text nodes
+ i = 0
+ while i < run.length
+ n = run[i]
+ if n.type is 'text'
+ if n.text is ''
+ @remove_node n
+ # FIXME maybe remove parents recursively if this makes them empty
+ run.splice i, 1
+ continue # don't increment i
+ i += 1
+ # note: inline tags can have white-space:pre-line/etc
+ # note: inline-blocks have their whitespace collapsed independantly of outer run
+ # note: inline-blocks are treated like non-whitespace char even if empty
+ if block.el.style.whiteSpace?
+ ws = block.el.style.whiteSpace
+ if ws_props[ws]
+ if ws_props[ws].space
+ if ws_props[ws].to_collapse is 'normal'
+ block.el.style.whiteSpace = null
+ else
+ block.el.style.whiteSpace = ws_props[ws].to_collapse
+ @update_style_from_el block
+ # note: space after <br> colapses, but not space before
+ # check for spaces that would collapse without help
+ eats_start_sp = true # if the next node starts with space it collapses (unless pre)
+ prev = null
+ for n in run
+ if n.type is 'tag'
+ if n.name is 'br'
+ eats_start_sp = true
+ else
+ eats_start_sp = false
+ else # TEXT
+ need_preserve = false
+ if n.type isnt 'text'
+ console.log "bug #232308"
+ return
+ if eats_start_sp
+ if is_space_code n.text.charCodeAt 0
+ need_preserve = true
+ unless need_preserve
+ need_preserve = multi_sp_regex.test n.text
+ if need_preserve
+ # do we have it already?
+ ws = @computed_style n, 'white-space' # FIXME implement this
+ unless ws_props[ws]?.space
+ # 2nd arg is ideal target for css rule
+ ws = @preserve_space n, block
+ eats_start_sp = false
+ else
+ if is_space_code n.text.charCodeAt(n.text.length - 1)
+ ws = @computed_style n, 'white-space' # FIXME implement this
+ if ws_props[ws]?.space
+ eats_start_sp = false
+ else
+ eats_start_sp = true
+ else
+ eats_start_sp = false
+ # check if text ends with a collapsable space
+ if run.length > 0
+ last = run[run.length - 1]
+ if last.type is 'text'
+ if eats_start_sp
+ @preserve_space last, block
+ return
+ css_clear: (n, prop) ->
+ return unless n.attrs.style?
+ return if n.attrs.style is ''
+ css_delimiter_regex = new RegExp('\s*;\s*', 'g') # FIXME make this global
+ styles = n.attrs.style.trim().split css_delimiter
+ return unless styles.length > 0
+ if styles[styles.length - 1] is ''
+ styles.pop()
+ return unless styles.length > 0
+ i = 0
+ while i < styles.length
+ if styles[i].substr(0, 12) is 'white-space:'
+ styles.splice i, 1
+ else
+ i += 1
+ return
+ # WARNING: after calling this one or more times, you MUST:
+ # if it's inline: call @text_cleanup
+ # call @changed()
+ remove_node: (n) ->
+ i = n.parent.children.indexOf n
+ if i is -1
+ throw "BUG #9187112313"
+ n.el.parentNode.removeChild n.el
+ n.parent.children.splice i, 1
+ return
+ # remove a node from the tree/dom, insert into new_parent before insert_before?end
+ # WARNING: after calling this one or more times, you MUST:
+ # if it's inline: call @text_cleanup
+ # call @changed()
+ move_node: (n, new_parent, insert_before = null) ->
+ i = n.parent.children.indexOf n
+ if i is -1
+ throw "Error: tried to remove node, but it's not in it's parents list of children"
return
- @cursor = cursor
- # replace cursor, to reset blink animation
+ if insert_before?
+ before_i = new_parent.children.indexOf insert_before
+ if i is -1
+ throw "Error: tried to move a node to be before a non-existent node"
+ insert_before = insert_before.el
+ @remove_node n
+ if insert_before?
+ new_parent.el.insertBefore n.el, insert_before
+ new_parent.children.splice before_i, 0, n
+ else
+ new_parent.el.appendChild n.el, insert_before
+ new_parent.children.push n
+ n.parent = new_parent
+ return
+ kill_cursor: -> # remove it, forget where it was
if @cursor_visible
@cursor_el.parentNode.removeChild @cursor_el
- @cursor_el = domify div: id: 'peach_html5_editor_cursor'
- @idoc.body.appendChild @cursor_el
- @cursor_visible = true
- # TODO figure out x,y coords for cursor
- @cursor_el.style.left = "#{loc.x}px"
- @cursor_el.style.top = "#{loc.y}px"
+ @cursor_visible = false
+ @cursor = null
+ @annotate null
+ return
+ move_cursor: (cursor) ->
+ @cursor_ideal_x = cursor.x
+ @cursor = cursor
+ unless @cursor_visible
+ @cursor_el = domify @outer_idoc, div: id: 'cursor'
+ @overlay.appendChild @cursor_el
+ @cursor_visible = true
+ @cursor_el.style.left = "#{cursor.x + overlay_padding - 1}px"
+ if cursor.h < 5
+ height = 12
+ else
+ height = cursor.h
+ @cursor_el.style.top = "#{cursor.y + overlay_padding + Math.round(height * .07)}px"
+ @cursor_el.style.height = "#{Math.round height * 0.82}px"
+ @annotate cursor.n
+ @scroll_into_view cursor.y, height
+ return
+ scroll_into_view: (y, h = 0) ->
+ y += overlay_padding # convert units from @idoc to @wrap2
+ # very top of document
+ if y <= breathing_room
+ @wrap2.scrollTop = 0
+ return
+ # very bottom of document
+ if y + h >= @wrap2.scrollHeight - breathing_room
+ @wrap2.scrollTop = @wrap2.scrollHeight - @wrap2_height
+ return
+ # The most scrolled up (lowest value for scrollTop) that would be OK
+ upmost = y + h + breathing_room - @wrap2_height
+ upmost = Math.max(upmost, 0)
+ # the most scrolled down (highest value for scrollTop) that would be OK
+ downmost = y - breathing_room
+ downmost = Math.min(downmost, @wrap2.scrollHeight - @wrap2_height)
+ if upmost > downmost # means h is too big to fit
+ # scroll so top is visible
+ @wrap2.scrollTop = downmost
+ return
+ if @wrap2.scrollTop < upmost
+ @wrap2.scrollTop = upmost
+ return
+ if @wrap2.scrollTop > downmost
+ @wrap2.scrollTop = downmost
+ return
+ return
+ annotate: (n) ->
+ while @matting.length > 0
+ @overlay.removeChild @matting[0]
+ @matting.shift()
+ return unless n?
+ prev_bounds = x: 0, y: 0, w: 0, h: 0
+ alpha = 0.1
+ while n?.el? and n isnt @tree_parent
+ if n.type is 'text'
+ n = n.parent
+ continue
+ bounds = get_el_bounds n.el
+ return unless bounds?
+ if bounds.x is prev_bounds.x and bounds.y is prev_bounds.y and bounds.w is prev_bounds.w and bounds.h is prev_bounds.h
+ n = n.parent
+ continue
+ ann_box = domify @outer_idoc, div: class: 'ann_box', style: "left: #{bounds.x - 1 + overlay_padding}px; top: #{bounds.y - 2 + overlay_padding}px; width: #{bounds.w}px; height: #{bounds.h}px" # outline: 1000px solid rgba(0,153,255,#{alpha});
+ @overlay.appendChild ann_box
+ @matting.push ann_box
+ ann_tag = domify @outer_idoc, div: class: 'ann_tag', style: "left: #{bounds.x + 1 + overlay_padding}px; top: #{bounds.y - 7 + overlay_padding}px", children: [domify @outer_idoc, text: " #{n.name} "]
+ @overlay.appendChild ann_tag
+ @matting.push ann_tag
+ n = n.parent
+ alpha *= 1.5
+ pretty_html: (tree, indent = '', parent_flags = pre_ish: false, block: true, want_nl: false) ->
+ ret = ''
+ want_nl = parent_flags.want_nl
+ prev_in_flow_is_text = false
+ prev_in_flow_is_block = false
+ for n, i in tree
+ # figure out flags
+ inner_flags = want_nl: true
+ is_br = false
+ switch n.type
+ when 'tag'
+ if n.name is 'br'
+ is_br = true
+ is_text = false
+ if n.el.currentStyle?
+ cs = n.el.currentStyle
+ whitespace = cs['white-space']
+ display = cs['display']
+ position = cs['position']
+ float = cs['float']
+ visibility = cs['visibility']
+ else
+ cs = @iframe.contentWindow.getComputedStyle(n.el, null)
+ whitespace = cs.getPropertyValue 'white-space'
+ display = cs.getPropertyValue 'display'
+ position = cs.getPropertyValue 'position'
+ float = cs.getPropertyValue 'float'
+ visibility = cs.getPropertyValue 'visibility'
+ if n.name is 'textarea'
+ inner_flags.pre_ish = true
+ else
+ inner_flags.pre_ish = whitespace.substr(0, 3) is 'pre'
+ switch float
+ when 'left', 'right'
+ in_flow = false
+ else
+ switch position
+ when 'absolute', 'fixed'
+ in_flow = false
+ else
+ if 'display' is 'none'
+ in_flow = false
+ else
+ switch visibility
+ when 'hidden', 'collapse'
+ in_flow = false
+ else # visible
+ in_flow = true
+ switch display
+ when 'inline', 'none'
+ inner_flags.block = false
+ is_block = in_flow_block = false
+ when 'inline-black'
+ inner_flags.block = true
+ is_block = in_flow_block = false
+ else # block, table, etc
+ inner_flags.block = true
+ is_block = true
+ in_flow_block = in_flow
+ when 'text'
+ is_text = true
+ is_block = false
+ in_flow = true
+ in_flow_block = false
+ else # 'comment', 'doctype'
+ is_text = false
+ is_block = false
+ in_flow = false
+ in_flow_block = false
+ # print whitespace if we can
+ unless parent_flags.pre_ish
+ unless prev_in_flow_is_text and is_br
+ if (i is 0 and parent_flags.block) or in_flow_block or prev_in_flow_is_block
+ if want_nl
+ ret += "\n"
+ ret += indent
+ switch n.type
+ when 'tag'
+ ret += '<' + n.name
+ attr_keys = []
+ for k of n.attrs
+ attr_keys.unshift k
+ #attr_keys.sort()
+ for k in attr_keys
+ ret += " #{k}"
+ if n.attrs[k].length > 0
+ ret += "=\"#{enc_attr n.attrs[k]}\""
+ ret += '>'
+ unless void_elements[n.name]?
+ if inner_flags.block
+ next_indent = indent + ' '
+ else
+ next_indent = indent
+ if n.children.length
+ ret += @pretty_html n.children, next_indent, inner_flags
+ ret += "</#{n.name}>"
+ when 'text'
+ ret += enc_text n.text
+ when 'comment'
+ ret += "<!--#{n.text}-->" # TODO encode?
+ when 'doctype'
+ ret += "<!DOCTYPE #{n.name}"
+ if n.public_identifier? and n.public_identifier.length > 0
+ ret += " \"#{n.public_identifier}\""
+ if n.system_identifier? and n.system_identifier.length > 0
+ ret += " \"#{n.system_identifier}\""
+ ret += ">"
+ want_nl = true
+ if in_flow
+ prev_in_flow_is_text = is_text
+ prev_in_flow_is_block = is_block or (in_flow and is_br)
+ if tree.length
+ # output final newline if allowed
+ unless parent_flags.pre_ish
+ if prev_in_flow_is_block or parent_flags.block
+ ret += "\n#{indent.substr 4}"
+ return ret
+ onblur: ->
+ @kill_cursor()
+ have_focus: ->
+ @editor_is_focused = true
+ @poll_for_blur()
+ poll_for_blur: ->
+ return if @poll_for_blur_timeout? # already polling
+ @poll_for_blur_timeout = timeout 150, =>
+ next_frame => # pause polling when browser knows we're not active/visible/etc.
+ @poll_for_blur_timeout = null
+ if document.activeElement is @outer_iframe
+ @poll_for_blur()
+ else
+ @editor_is_focused = false
+ @onblur()
window.peach_html5_editor = (args...) ->
return new PeachHTML5Editor args...
Got questions, comments, patches, etc.? Contact Jason Woofenden