X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=editor.coffee;h=faa2e3f25462bb44211107f980e8a9b88de31dd9;hb=dc0f845531025a04b5e3a541d1ba8c98fc96b1b4;hp=4de3b8179d8c312fb1e024070b3e9a21c71e0a3a;hpb=a7cff3a244ba086034aed2f284235b6bcb6b7f98;p=peach-html5-editor.git

diff --git a/editor.coffee b/editor.coffee
index 4de3b81..faa2e3f 100644
--- a/editor.coffee
+++ b/editor.coffee
@@ -14,3 +14,180 @@
 # 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/>.
 
+# encode text so it can be safely placed inside an html attribute
+enc_attr_regex = new RegExp '(&)|(")|(\u00A0)', 'g'
+enc_attr = (txt) ->
+	return txt.replace enc_attr_regex, (match, amp, quote) ->
+		return '&amp;' if (amp)
+		return '&quot;' if (quote)
+		return '&nbsp;'
+
+void_elements = {
+	area: true
+	base: true
+	br: true
+	col: true
+	embed: true
+	hr: true
+	img: true
+	input: true
+	keygen: true
+	link: true
+	meta: true
+	param: true
+	source: true
+	track: true
+	wbr: true
+}
+dom_to_html = (dom) ->
+	ret = ''
+	for el in dom
+		switch el.type
+			when peach_parser.TYPE_TAG
+				ret += '<' + el.name
+				attr_keys = []
+				for k of el.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]}\""
+				ret += '>'
+				unless void_elements[el.name]
+					if el.children.length
+						ret += dom_to_html el.children
+					ret += "</#{el.name}>"
+			when peach_parser.TYPE_TEXT
+				ret += el.text
+			when peach_parser.TYPE_COMMENT
+				ret += "<!--#{el.text}-->"
+			when peach_parser.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 += ">\n"
+	return ret
+
+domify = (h) ->
+	for tag, attrs of h
+		if tag is 'text'
+			return document.createTextNode attrs
+		el = document.createElement tag
+		for k, v of attrs
+			if k is 'children'
+				for child in v
+					el.appendChild child
+			else
+				el.setAttribute k, v
+	return el
+
+css = ''
+css += 'div#peach_editor_cursor {'
+css +=     'display: inline-block;'
+css +=     'height: 1em;'
+css +=     'width: 2px;'
+css +=     'margin-left: -1px;'
+css +=     'margin-right: -1px;'
+css +=     'background: #000;'
+css +=     '-webkit-animation: 1s blink step-end infinite;'
+css +=     'animation: 1s blink step-end infinite;'
+css += '}'
+css += '@-webkit-keyframes "blink" {'
+css +=     'from, to { background: #000; }'
+css +=     '50% { background: transparent; }'
+css += '}'
+css += '@keyframes "blink" {'
+css +=     'from, to { background: #000; }'
+css +=     '50% { background: transparent; }'
+css += '}'
+
+# key codes:
+KEY_LEFT = 37
+KEY_UP = 38
+KEY_RIGHT = 39
+KEY_DOWN = 40
+KEY_BACKSPACE = 8 # <--
+KEY_DELETE = 46 # -->
+KEY_END = 35
+KEY_ENTER = 13
+KEY_ESCAPE = 27
+KEY_HOME = 36
+KEY_INSERT = 45
+KEY_PAGE_UP = 33
+KEY_PAGE_DOWN = 34
+KEY_TAB = 9
+
+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
+}
+
+# test in browser: peach.wysiwyg(document.getElementsByTagName('textarea')[0])