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 = 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
inner_padding = args.inner_padding ? overlay_padding
frame_width = args.frame_width ? inner_padding
# TODO editor controls height...
- shrink = (px) ->
- w -= 2 * px
- h -= 2 * px
- return px
+ 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: #{shrink 1}px solid black;"
- ret += "padding: #{shrink frame_width}px;"
+ ret += "border: #{occupy 1}px solid black;"
+ ret += "padding: #{occupy frame_width}px;"
ret += '}'
ret += '#wrap2 {'
- ret += "border: #{shrink 1}px solid black;"
- ret += "padding: #{shrink inner_padding}px;"
+ 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 += 'border: none;'
ret += 'padding: 0;'
ret += "width: #{w}px;"
- ret += "height: #{h}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;'
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
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 cursor_to_xyh(node, 0)?
+ 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
if node
state.prev = node
if found.node?
- return [found.node, found.node.text.length]
+ 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
+ return find_prev_cursor_position tree, ret[0], 0
return null
find_loc_cursor_position = (tree, loc) ->
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
@iframe = domify @outer_idoc, iframe: {}
@iframe.onload = =>
@init()
- setTimeout (=> @init()), 200 # firefox never fires this onload
+ 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: [
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)
- return if @initialized # ignore timeout for non-broken browsers
@idoc = @iframe.contentDocument
@overlay.onclick = (e) =>
- return @onclick e
+ return event_return @onclick e
+ @overlay.ondoubleclick = (e) =>
+ return event_return @ondoubleclick e
@outer_idoc.body.onkeyup = (e) =>
- return @onkeyup e
+ return event_return @onkeyup e
@outer_idoc.body.onkeydown = (e) =>
- return @onkeydown e
+ return event_return @onkeydown e
@outer_idoc.body.onkeypress = (e) =>
- return @onkeypress e
+ return event_return @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]?
Got questions, comments, patches, etc.? Contact Jason Woofenden