-wysiwyg = (el, options = {}) ->
- opt_fragment = options.fragment ? true
- parser_opts = {}
- if opt_fragment
- parser_opts.fragment = 'body'
- editor_instance = {
- dom: []
- iframe: document.createElement('iframe')
- load_html: (html) ->
- @dom = peach_parser.parse html, parser_opts
- as_html = peach.dom_to_html @dom
- as_html = as_html.substr(0, 5) + '<span class="peach_editor_cursor"></span>' + as_html.substr(5)
- @iframe.contentDocument.body.innerHTML = as_html
- }
- el.parentNode.appendChild editor_instance.iframe
- idoc = editor_instance.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.onkeyup = (e) ->
- return false if ignore_key_codes[e.keyCode]?
- return false if control_key_codes[e.keyCode]?
- idoc.body.onkeydown = (e) ->
- return false if ignore_key_codes[e.keyCode]?
- return false if control_key_codes[e.keyCode]?
- idoc.body.onkeypress = (e) ->
- return if e.ctrlKey
- return false if ignore_key_codes[e.keyCode]?
- # in firefox, keyCode is only set for non-typing keys
- if e.keyCode isnt KEY_BACKSPACE # so this is fine
- return false if control_key_codes[e.keyCode]?
- char = e.charCode ? e.keyCode
- el.value += String.fromCharCode char
- editor_instance.load_html el.value
- 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
- editor_instance.load_html el.value
- return editor_instance
-
-window.peach = {
- wysiwyg: wysiwyg
- dom_to_html: dom_to_html
-}
+instantiate_tree = (tree, parent) ->
+ for c in tree
+ switch c.type
+ when TYPE_TEXT
+ c.el = parent.ownerDocument.createTextNode c.text
+ parent.appendChild c.el
+ when TYPE_TAG
+ # 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
+ parent.appendChild c.el
+ if c.children.length
+ instantiate_tree c.children, c.el
+
+traverse_tree = (tree, state, cb) ->
+ for c in tree
+ cb c, state
+ break if state.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
+ 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.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
+
+# 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
+ for prev_i in [i-1 .. 0]
+ prev_xyh = cursor_to_xyh n, prev_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) ->
+ 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]
+ 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
+ return ret if ret?
+ if c.type is TYPE_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
+ after_i = c.text.length
+ after = cursor_to_xyh c, after_i
+ if loc.y < before.y + before.h and loc.x < before.x
+ # console.log 'before first char on first line'
+ continue
+ if loc.y > after.y and loc.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"
+ 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
+ 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
+ if loc.y < cur.y or (loc.y <= cur.y + cur.h and loc.x < cur.x)
+ after_i = cur_i
+ after = cur
+ else
+ before_i = cur_i
+ before = cur
+ # which one is closest?
+ if Math.abs(before.x - loc.x) < Math.abs(after.x - loc.x)
+ return [c, before_i]
+ else
+ return [c, after_i]
+ return null
+
+class PeachHTML5Editor
+ constructor: (in_el, options = {}) ->
+ @in_el = in_el
+ @tree = []
+ @iframe = domify iframe: class: 'peach_html5_editor'
+ @cursor = null
+ @cursor_el = null
+ @cursor_visible = false
+ 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
+ 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]
+ 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
+ while @idoc.body.childNodes.length
+ @idoc.body.removeChild @idoc.body.childNodes[0]
+ @cursor_visible = false
+ return
+ load_html: (html) ->
+ @tree = peach_parser.parse html, @parser_opts
+ #as_html = dom_to_html @tree
+ #@iframe.contentDocument.body.innerHTML = as_html
+ @clear_dom()
+ instantiate_tree @tree, @idoc.body
+ move_cursor: (cursor) ->
+ loc = cursor_to_xyh cursor[0], cursor[1]
+ return if loc is null
+ @cursor = cursor
+ # replace cursor, to reset blink animation
+ 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"
+
+window.peach_html5_editor = (args...) ->
+ return new PeachHTML5Editor args...