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 # disabled
el = doc.createElement 'div'
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) ->
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
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
+ 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_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)?
- state.node = node
- state.done = true
+ 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
find_prev_cursor_position = (tree, 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?
- ret = [found.node, found.node.text.length]
- # check for unusual case: text not visible
- loc = cursor_to_xyh ret[0], ret[1]
- if loc?
- return ret
+ 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
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
init: -> # called by @iframe's onload (or timeout on firefox)
@idoc = @iframe.contentDocument
@overlay.onclick = (e) =>
- return event_return @onclick e
+ return event_return e, @onclick e
@overlay.ondoubleclick = (e) =>
- return event_return @ondoubleclick e
+ return event_return e, @ondoubleclick e
@outer_idoc.body.onkeyup = (e) =>
- return event_return @onkeyup e
+ return event_return e, @onkeyup e
@outer_idoc.body.onkeydown = (e) =>
- return event_return @onkeydown e
+ return event_return e, @onkeydown e
@outer_idoc.body.onkeypress = (e) =>
- return event_return @onkeypress e
+ return event_return e, @onkeypress e
if @options.stylesheet
# TODO test this
@idoc.head.appendChild domify @idoc, style: src: @options.stylesheet
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"
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 - 1}px"
@cursor_el.style.top = "#{loc.y + overlay_padding}px"
Got questions, comments, patches, etc.? Contact Jason Woofenden