TYPE_COMMENT = peach_parser.TYPE_COMMENT
TYPE_DOCTYPE = peach_parser.TYPE_DOCTYPE
+timeout = (ms, cb) -> return setTimeout cb, ms
+
debug_dot_at = (doc, x, y) ->
- return
+ 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
else
return window.getComputedStyle(el, null).getPropertyValue('display') is 'block'
+# pass a node (not an element) for a tag
+# returns if this is the sort of tag that cares about leading/trailing whitespace
+# FIXME this probably doesn't work all the time
+is_whitespace_significant = (n) ->
+ if n.name is 'textarea'
+ return true
+ if n.name is 'pre'
+ return true
+ if n.el.currentStyle?
+ return n.el.currentStyle['white-space'].substr(0, 3) is 'pre'
+ else
+ return window.getComputedStyle(n.el, null).getPropertyValue('white-space').substr(0, 3) is 'pre'
+
+# 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 = document.createRange()
if n.text.length is 0
ret = text_range_bounds n.el, 0, 0
- if i is n.text.length
+ else if i is n.text.length
ret = text_range_bounds n.el, i - 1, i
if ret?
ret.x += ret.w
track: true
wbr: true
}
-dom_to_html = (dom) ->
+# 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
+}
+# FIXME terminology: s/dom/tree/; s/el/n/
+tree_to_html = (tree, indent = '', parent_is_block = false) ->
ret = ''
- for el in dom
- switch el.type
+ for n, i in tree
+ switch n.type
when TYPE_TAG
- ret += '<' + el.name
+ is_block = is_display_block n.el
+ if is_block
+ is_tiny_block = false
+ if is_whitespace_significant n
+ is_tiny_block = true
+ else
+ if n.children.length is 1
+ if n.children[0].type is TYPE_TEXT
+ if n.children[0].text.length < 35
+ is_tiny_block = true
+ if is_block or (parent_is_block and i is 0)
+ ret += indent
+ ret += '<' + n.name
attr_keys = []
- for k of el.attrs
+ for k of n.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]}\""
+ if n.attrs[k].length > 0
+ ret += "=\"#{enc_attr n.attrs[k]}\""
ret += '>'
- unless void_elements[el.name]
- if el.children.length
- ret += dom_to_html el.children
- ret += "</#{el.name}>"
+ unless void_elements[n.name]?
+ if is_block
+ next_indent = indent + ' '
+ else
+ next_indent = indent
+ if n.children.length
+ if is_block and not is_tiny_block
+ ret += "\n"
+ ret += tree_to_html n.children, next_indent, is_block and not is_tiny_block
+ if is_block and not is_tiny_block
+ ret += indent
+ ret += "</#{n.name}>"
+ if is_block or (parent_is_block and i is tree.length - 1)
+ ret += "\n"
when TYPE_TEXT
- ret += enc_text el.text
+ if parent_is_block and i is 0
+ ret += indent
+ ret += enc_text n.text
+ if parent_is_block and i is tree.length - 1
+ ret += "\n"
when TYPE_COMMENT
- ret += "<!--#{el.text}-->"
+ ret += "<!--#{n.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 += "<!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 += ">\n"
return ret
el.setAttribute k, v
return el
-css = ''
-css += 'body {'
-css += 'margin: 0;'
-css += 'padding: 0;'
-css += '}'
-css += '#wrap1 {'
-css += 'border: 1px solid black;'
-css += "padding: #{overlay_padding}px;"
-css += '}'
-css += '#wrap2 {'
-css += 'border: 1px solid black;'
-css += "padding: #{overlay_padding}px;"
-css += '}'
-css += '#wrap3 {'
-css += 'position: relative;'
-css += '}'
-css += 'iframe {'
-css += 'box-sizing: border-box;'
-css += 'margin: 0;'
-css += 'border: none;'
-css += 'padding: 0;'
-css += "width: #{300 - 4 - 4 * overlay_padding}px;"
-css += "height: #{300 - 4 - 4 * overlay_padding}px;"
-css += '}'
-css += '#overlay {'
-css += 'position: absolute;'
-css += "left: -#{overlay_padding}px;"
-css += "top: -#{overlay_padding}px;"
-css += "right: -#{overlay_padding}px;"
-css += "bottom: -#{overlay_padding}px;"
-css += 'overflow: hidden;'
-css += '}'
-css += '.lightbox {'
-css += 'position: absolute;'
-css += 'background: rgba(100,100,100,0.2);'
-css += '}'
-css += '#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 += '}'
+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
+ # TODO editor controls height...
+ 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 += '}'
+ 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;"
+ 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 += '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 += '}'
+ ret += '@-webkit-keyframes blink {'
+ ret += 'to { visibility: hidden; }'
+ ret += '}'
+ ret += '@keyframes blink {'
+ ret += 'to { visibility: hidden; }'
+ ret += '}'
+ return ret
# key codes:
KEY_LEFT = 37
'9': KEY_TAB
instantiate_tree = (tree, parent) ->
- for c in tree
+ remove = []
+ for c, i in tree
switch c.type
when TYPE_TEXT
c.el = parent.ownerDocument.createTextNode c.text
parent.appendChild c.el
when TYPE_TAG
+ if c.name in ['script', 'object', 'iframe', 'link']
+ # TODO put placeholders instead
+ remove.unshift i
# TODO create in correct namespace
c.el = parent.ownerDocument.createElement c.name
for k, v of c.attrs
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
+ done = traverse_tree c.children, cb
+ return done if done
+ return done
+
find_next_cursor_position = (tree, n, i) ->
- if n? and n.type is TYPE_TEXT and n.text.length > i
+ if 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"
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
+ state_before = true
+ found = null
+ traverse_tree tree, (node, state) ->
+ if node.type is TYPE_TEXT and state_before is false
+ if cursor_to_xyh(node, 0)?
+ found = node
+ return true
if node is n
- state.before = false
- if found.node?
- return [found.node, 0]
+ state_before = false
+ return false
+ if found?
+ return [found, 0]
return null
-# 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
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) ->
+ found_prev = n?
+ found = null
+ traverse_tree tree, (node) ->
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]
+ if found_prev?
+ found = found_prev
+ return true
+ found_prev = node
+ return false
+ if found?
+ if cursor_to_xyh found, found.text.length # text visible?
+ return [found, found.text.length]
+ return find_prev_cursor_position tree, ret[0], 0
return null
find_loc_cursor_position = (tree, loc) ->
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 TYPE_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
+ 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
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
# pass null at start/end of display:block
queue = (n, i) ->
iterate tree, queue
queue null
+ tree_remove_empty_text_nodes(tree)
+
class PeachHTML5Editor
# Options: (all optional)
# editor_id: "id" attribute for outer-most element created by/for editor
+ # on_init: callback for when the editable content is in place
constructor: (in_el, options) ->
@options = options ? {}
@in_el = in_el
@tree = []
- @initialized = false # when iframes have loaded
+ @inited = false # when iframes have loaded
@outer_iframe # iframe to hold editor
@outer_idoc # "document" object for @outer_iframe
@iframe = null # iframe to hold editable content
if opt_fragment
@parser_opts.fragment = 'body'
- @outer_iframe = domify document, iframe: class: 'peach_html5_editor'
+ @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 = =>
domify @outer_idoc, text: css
]
@outer_idoc.head.appendChild icss
- # FIXME continue
-
@iframe = domify @outer_idoc, iframe: {}
@iframe.onload = =>
@init()
+ setTimeout (=> @init() unless @inited), 200 # firefox never fires this onload
@outer_idoc.body.appendChild(
domify @outer_idoc, div: id: 'wrap1', children: [
domify @outer_idoc, div: id: 'wrap2', children: [
]
]
)
- @in_el.parentNode.appendChild @outer_iframe
- init: -> # called by @iframe's onload
+ 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 = 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)
@idoc = @iframe.contentDocument
@overlay.onclick = (e) =>
- return @onclick e
+ return event_return e, @onclick e
+ @overlay.ondoubleclick = (e) =>
+ return event_return e, @ondoubleclick e
@outer_idoc.body.onkeyup = (e) =>
- return @onkeyup e
+ return event_return e, @onkeyup e
@outer_idoc.body.onkeydown = (e) =>
- return @onkeydown e
+ return event_return e, @onkeydown e
@outer_idoc.body.onkeypress = (e) =>
- return @onkeypress e
+ return event_return e, @onkeypress e
if @options.stylesheet
# TODO test this
@idoc.head.appendChild domify @idoc, style: src: @options.stylesheet
@load_html @in_el.value
- @initialized = true
- if @options.initialized_cb?
- @options.initialized_cb()
+ @inited = true
+ if @options.on_init?
+ @options.on_init()
onclick: (e) ->
x = (e.offsetX ? e.layerX) - overlay_padding
y = (e.offsetY ? e.layerY) - overlay_padding
new_cursor = find_loc_cursor_position @tree, x: x, y: y
if new_cursor?
@move_cursor new_cursor
+ return false
+ ondoubleclick: (e) ->
+ return false
onkeyup: (e) ->
return if e.ctrlKey
return false if ignore_key_codes[e.keyCode]?
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 = tree_to_html @tree
@in_el.onchange = =>
@load_html @in_el.value
+ @iframe.style.height = "0"
+ @iframe.style.height = "#{@idoc.body.scrollHeight}px"
kill_cursor: -> # remove it, forget where it was
if @cursor_visible
@cursor_el.parentNode.removeChild @cursor_el
console.log "error: tried to move cursor to position that has no pixel location", cursor[0], cursor[1]
return
@cursor = cursor
- # replace cursor, to reset blink animation
+ # replace cursor element, to reset blink animation
if @cursor_visible
@cursor_el.parentNode.removeChild @cursor_el
@cursor_el = domify @outer_idoc, div: id: 'cursor'
@overlay.appendChild @cursor_el
@cursor_visible = true
- # TODO figure out x,y coords for cursor
- @cursor_el.style.left = "#{loc.x + overlay_padding}px"
+ @cursor_el.style.left = "#{loc.x + overlay_padding - 1}px"
@cursor_el.style.top = "#{loc.y + overlay_padding}px"
window.peach_html5_editor = (args...) ->
Got questions, comments, patches, etc.? Contact Jason Woofenden