X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=editor.coffee;h=c3f35be30439e9b084cc0a061b2daeeb91228d0e;hb=6c22b1995a894c76fd54349f978a36fd09960bc9;hp=94a42c2df4d24a3ad33330924f7bcefdea20cb19;hpb=84a9c68f0c3af0ccdec6f82a14a7cc3fca5ab4ba;p=peach-html5-editor.git

diff --git a/editor.coffee b/editor.coffee
index 94a42c2..c3f35be 100644
--- a/editor.coffee
+++ b/editor.coffee
@@ -14,12 +14,16 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# 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
 
 debug_dot_at = (doc, x, y) ->
+	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
@@ -158,8 +162,8 @@ dom_to_html = (dom) ->
 				ret += ">\n"
 	return ret
 
-domify = (h) ->
-	for tag, attrs of h
+domify = (doc, hash) ->
+	for tag, attrs of hash
 		if tag is 'text'
 			return document.createTextNode attrs
 		el = document.createElement tag
@@ -171,23 +175,67 @@ domify = (h) ->
 				el.setAttribute k, v
 	return el
 
-css = ''
-css += 'div#peach_html5_editor_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...
+	shrink = (px) ->
+		w -= 2 * px
+		h -= 2 * px
+		return px
+	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 += '}'
+	ret += '#wrap2 {'
+	ret +=     "border: #{shrink 1}px solid black;"
+	ret +=     "padding: #{shrink inner_padding}px;"
+	ret += '}'
+	ret += '#wrap3 {'
+	ret +=     'position: relative;'
+	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;"
+	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
@@ -205,13 +253,40 @@ 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
+	'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
+
 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
@@ -220,6 +295,8 @@ instantiate_tree = (tree, parent) ->
 				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) ->
 	for c in tree
@@ -463,151 +540,175 @@ tree_dedup_space = (tree) ->
 	queue null
 
 class PeachHTML5Editor
-	constructor: (in_el, options = {}) ->
+	# Options: (all optional)
+	#   editor_id: "id" attribute for outer-most element created by/for editor
+	constructor: (in_el, options) ->
+		@options = options ? {}
 		@in_el = in_el
 		@tree = []
-		@iframe = domify iframe: class: 'peach_html5_editor'
+		@initialized = 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
+		@idoc = null # "document" object for @iframe
 		@cursor = null
 		@cursor_el = null
 		@cursor_visible = false
-		opt_fragment = options.fragment ? true
+		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]
-					@changed()
+		@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 = =>
+			@outer_idoc = @outer_iframe.contentDocument
+			icss = domify @outer_idoc, style: children: [
+				domify @outer_idoc, text: css
+			]
+			@outer_idoc.head.appendChild icss
+			@iframe = domify @outer_idoc, iframe: {}
+			@iframe.onload = =>
+				@init()
+			setTimeout (=> @init()), 200 # firefox never fires this onload
+			@outer_idoc.body.appendChild(
+				domify @outer_idoc, div: id: 'wrap1', children: [
+					domify @outer_idoc, div: id: 'wrap2', children: [
+						domify @outer_idoc, div: id: 'wrap3', children: [
+							@iframe
+							@overlay = domify @outer_idoc, div: id: 'overlay'
+						]
+					]
+				]
+			)
+		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)
+		return if @initialized # ignore timeout for non-broken browsers
+		@idoc = @iframe.contentDocument
+		@overlay.onclick = (e) =>
+			return @onclick e
+		@outer_idoc.body.onkeyup = (e) =>
+			return @onkeyup e
+		@outer_idoc.body.onkeydown = (e) =>
+			return @onkeydown e
+		@outer_idoc.body.onkeypress = (e) =>
+			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()
+	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
+	onkeyup: (e) ->
+		return if e.ctrlKey
+		return false if ignore_key_codes[e.keyCode]?
+		#return false if control_key_codes[e.keyCode]?
+	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
-			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
+			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
+	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]
+			@changed()
+		return false
+	clear_dom: -> # remove all the editable content (and cursor, overlays, etc)
 		while @idoc.body.childNodes.length
 			@idoc.body.removeChild @idoc.body.childNodes[0]
-		@cursor_visible = false
+		@kill_cursor()
 		return
 	load_html: (html) ->
 		@tree = peach_parser.parse html, @parser_opts
@@ -621,6 +722,13 @@ class PeachHTML5Editor
 		@in_el.value = dom_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
+			@cursor_visible = false
+		@cursor = null
 	move_cursor: (cursor) ->
 		loc = cursor_to_xyh cursor[0], cursor[1]
 		unless loc?
@@ -630,12 +738,12 @@ class PeachHTML5Editor
 		# 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_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}px"
-		@cursor_el.style.top = "#{loc.y}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...) ->
 	return new PeachHTML5Editor args...