# SETTINGS
overlay_padding = 10
-TYPE_TAG = peach_parser.TYPE_TAG
-TYPE_TEXT = peach_parser.TYPE_TEXT
-TYPE_COMMENT = peach_parser.TYPE_COMMENT
-TYPE_DOCTYPE = peach_parser.TYPE_DOCTYPE
-
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
+
+# 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].'
debug_dot_at = (doc, x, y) ->
return # disabled
ret += '}'
ret += '#cursor {'
ret += 'position: absolute;'
- ret += 'height: 1em;' # FIXME adjust for hight of text
ret += 'width: 2px;'
- ret += 'background: #444;'
- ret += '-webkit-animation: blink 1s steps(2, start) infinite;'
- ret += 'animation: blink 1s steps(2, start) infinite;'
+ 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 += 'to { visibility: hidden; }'
+ ret += '0%{background-position:0% 0%}'
+ ret += '100%{background-position:0% -100%}'
ret += '}'
- ret += '@keyframes blink {'
- ret += 'to { visibility: hidden; }'
+ 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
-# 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
-
-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
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
return done
find_next_cursor_position = (tree, n, i) ->
- if n.type is TYPE_TEXT and n.text.length > i
+ if n.type is '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"
state_before = true
found = null
traverse_tree tree, (node, state) ->
- if node.type is TYPE_TEXT and state_before is false
+ if node.type is 'text' and state_before is false
if cursor_to_xyh(node, 0)?
found = node
return true
return null
find_prev_cursor_position = (tree, n, i) ->
- if n? and n.type is TYPE_TEXT and i > 0
+ if n? and n.type is '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"
found_prev = n?
found = null
traverse_tree tree, (node) ->
- if node.type is TYPE_TEXT
+ if node.type is 'text'
if node is n
if found_prev?
found = found_prev
find_loc_cursor_position = (tree, loc) ->
for c in tree
- if c.type is TYPE_TAG or c.type is TYPE_TEXT
+ if c.type is 'tag' or c.type is 'text'
bounds = get_el_bounds c.el
continue if loc.x < bounds.x
continue if loc.x > bounds.x + bounds.w
if c.children.length
ret = find_loc_cursor_position c.children, loc
return ret if ret?
- if c.type is TYPE_TEXT
+ if c.type is 'text'
# click is within bounding box that contains all text.
return [c, 0] if c.text.length is 0
before_i = 0
tree_remove_empty_text_nodes = (tree) ->
empties = []
traverse_tree tree, (n) ->
- if n.type is TYPE_TEXT
+ if n.type is 'text'
if n.text.length is 0
empties.unshift n
return false
for n in empties
# don't completely empty the tree
if tree.length is 1
- if tree[0].type is TYPE_TEXT
+ 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
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
class PeachHTML5Editor
# 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 ? {}
@cursor = null
@cursor_el = null
@cursor_visible = false
+ @poll_for_blur_timeout = null
@iframe_offset = null
opt_fragment = @options.fragment ? true
@parser_opts = {}
domify @outer_idoc, text: css
]
@outer_idoc.head.appendChild icss
- @iframe = domify @outer_idoc, iframe: {}
+ @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: -> # called by @iframe's onload (or timeout on firefox)
@idoc = @iframe.contentDocument
@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
- if @options.stylesheet
+ # 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, style: src: @options.stylesheet
+ @idoc.head.appendChild domify @idoc, link: rel: 'stylesheet', type: 'text/css', href: @options.css_file
@load_html @in_el.value
@inited = true
if @options.on_init?
new_cursor = find_loc_cursor_position @tree, xy
if new_cursor?
@move_cursor new_cursor
+ else
+ @kill_cursor()
return false
ondoubleclick: (e) ->
return false
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
+ # return false if control_key_codes[e.keyCode]? # handled in keydown
char = e.charCode ? e.keyCode
if char and @cursor?
char = String.fromCharCode char
@overlay.appendChild @cursor_el
@cursor_visible = true
@cursor_el.style.left = "#{loc.x + overlay_padding - 1}px"
- @cursor_el.style.top = "#{loc.y + overlay_padding}px"
+ if loc.h < 5
+ height = 12
+ else
+ height = loc.h
+ @cursor_el.style.top = "#{loc.y + overlay_padding + Math.round(height * .07)}px"
+ @cursor_el.style.height = "#{Math.round height * 0.82}px"
@matt cursor[0]
matt: (n) ->
while @matting.length > 0
prev_bounds = x: 0, y: 0, w: 0, h: 0
alpha = 0.1
while n?.el?
- if n.type is TYPE_TEXT
+ if n.type is 'text'
n = n.parent
continue
bounds = get_el_bounds n.el
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
- matt = domify @outer_idoc, div: style: "position: absolute; left: #{bounds.x - 1 + overlay_padding}px; top: #{bounds.y - 1 + overlay_padding}px; width: #{bounds.w}px; height: #{bounds.h}px; outline: 1000px solid rgba(0,153,255,#{alpha}); border: 1px solid rgba(0,0,0,.1)"
+ matt = 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 matt
@matting.push matt
- ann = domify @outer_idoc, div: style: "position: absolute; left: #{bounds.x - 2 + overlay_padding}px; top: #{bounds.y - 6 + overlay_padding}px; font-size: 8px", children: [domify @outer_idoc, text: "<#{n.name}>"]
+ ann = 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
@matting.push ann
n = n.parent
inner_flags = want_nl: true
is_br = false
switch n.type
- when TYPE_TAG
+ when 'tag'
if n.name is 'br'
is_br = true
is_text = false
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
if 'display' is 'none'
in_flow = false
else
- in_flow = true
+ switch visibility
+ when 'hidden', 'collapse'
+ in_flow = false
+ else # visible
+ in_flow = true
switch display
when 'inline', 'none'
inner_flags.block = false
inner_flags.block = true
is_block = true
in_flow_block = in_flow
- when TYPE_TEXT
+ when 'text'
is_text = true
is_block = false
in_flow = true
in_flow_block = false
- else # TYPE_COMMENT, TYPE_DOCTYPE
+ else # 'comment', 'doctype'
is_text = false
is_block = false
in_flow = false
ret += "\n"
ret += indent
switch n.type
- when TYPE_TAG
+ when 'tag'
ret += '<' + n.name
attr_keys = []
for k of n.attrs
if n.children.length
ret += @pretty_html n.children, next_indent, inner_flags
ret += "</#{n.name}>"
- when TYPE_TEXT
+ when 'text'
ret += enc_text n.text
- when TYPE_COMMENT
+ when 'comment'
ret += "<!--#{n.text}-->" # TODO encode?
- when TYPE_DOCTYPE
+ when 'doctype'
ret += "<!DOCTYPE #{n.name}"
if n.public_identifier? and n.public_identifier.length > 0
ret += " \"#{n.public_identifier}\""
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...