X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=editor.coffee;h=a9d0a3c95d352931672379cbb953bc8fd6b155de;hb=b3b872ef2a2200cd1e674845f0215341c1e67bfd;hp=7ef8e37cc3ba42548625da61ec02ccdafcb3747b;hpb=060c37f53ad12694bd1d37f405aba965b8af9966;p=peach-html5-editor.git

diff --git a/editor.coffee b/editor.coffee
index 7ef8e37..a9d0a3c 100644
--- a/editor.coffee
+++ b/editor.coffee
@@ -18,8 +18,26 @@
 overlay_padding = 10
 
 timeout = (ms, cb) -> return setTimeout cb, ms
+next_frame = (cb) ->
+	if (window.requestAnimationFrame?)
+		window.requestAnimationFrame cb
+	else
+		timeout 16, cb
+
+this_url_sans_path = ->
+	ret = "#{window.location.href}"
+	clip = ret.lastIndexOf '#'
+	if clip > -1
+		ret = ret.substr 0, clip
+	clip = ret.lastIndexOf '?'
+	if clip > -1
+		ret = ret.substr 0, clip
+	clip = ret.lastIndexOf '/'
+	if clip > -1
+		ret = ret.substr 0, clip + 1
+	return ret
 
-# xml 1.0 says:
+# xml 1.0 spec, chromium and firefox accept these, plus lots of unicode chars
 valid_attr_regex = new RegExp '^[a-zA-Z_:][-a-zA-Z0-9_:.]*$'
 # html5 spec is much more lax, but chromium won't let me make at attribute with the name "4"
 js_attr_regex = new RegExp '^[oO][nN].'
@@ -179,6 +197,8 @@ outer_css = (args) ->
 	ret += 'body {'
 	ret +=     'margin: 0;'
 	ret +=     'padding: 0;'
+	ret +=     'color: black;'
+	ret +=     'background: white;'
 	ret += '}'
 	ret += '#wrap1 {'
 	ret +=     "border: #{occupy 1}px solid black;"
@@ -224,17 +244,19 @@ outer_css = (args) ->
 	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 +=     'background: linear-gradient(0deg, rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1), rgba(255,255,255,1), rgba(0,0,0,1));'
+	ret +=     'background-size: 200% 200%;'
+	ret +=     '-webkit-animation: blink 1s linear normal infinite;'
+	ret +=     'animation: blink 1s linear normal infinite;'
 	ret += '}'
 	ret += '@-webkit-keyframes blink {'
-	ret +=     'to { visibility: hidden; }'
+	ret +=     '0%{background-position:0% 0%}'
+	ret +=     '100%{background-position:0% -100%}'
 	ret += '}'
-	ret += '@keyframes blink {'
-	ret +=     'to { visibility: hidden; }'
+	ret += '@keyframes blink { '
+	ret +=     '0%{background-position:0% 0%}'
+	ret +=     '100%{background-position:0% -100%}'
 	ret += '}'
 	ret += '.ann_box {'
 	ret +=     'z-index: 5;'
@@ -248,10 +270,22 @@ outer_css = (args) ->
 	ret +=     'font-size: 8px;'
 	ret +=     'white-space: pre;'
 	ret +=     'background: rgba(255,255,255,0.4);'
+	ret +=     '-ms-user-select: none;'
+	ret +=     '-webkit-user-select: none;'
+	ret +=     '-moz-user-select: none;'
+	ret +=     'user-select: none;'
 	ret += '}'
 	return ret
 
-# key codes:
+
+ignore_key_codes =
+	'18': true # alt
+	'20': true # capslock
+	'17': true # ctrl
+	'144': true # numlock
+	'16': true # shift
+	'91': true # windows "start" key
+# key codes: (valid on keydown, not keypress)
 KEY_LEFT = 37
 KEY_UP = 38
 KEY_RIGHT = 39
@@ -266,14 +300,6 @@ KEY_INSERT = 45
 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
@@ -578,13 +604,14 @@ tree_dedup_space = (tree) ->
 class PeachHTML5Editor
 	# Options: (all optional)
 	#   editor_id: "id" attribute for outer-most element created by/for editor
+	#   css_file: filename of a css file to style editable content
 	#   on_init: callback for when the editable content is in place
 	constructor: (in_el, options) ->
 		@options = options ? {}
 		@in_el = in_el
-		@tree = []
+		@tree = null
 		@matting = []
-		@inited = false # when iframes have loaded
+		@init_1_called = false # when iframes have loaded
 		@outer_iframe # iframe to hold editor
 		@outer_idoc # "document" object for @outer_iframe
 		@wrap2 = null # scrollbar is on this
@@ -593,7 +620,9 @@ class PeachHTML5Editor
 		@cursor = null
 		@cursor_el = null
 		@cursor_visible = false
+		@poll_for_blur_timeout = null
 		@iframe_offset = null
+		@iframe_height = null
 		opt_fragment = @options.fragment ? true
 		@parser_opts = {}
 		if opt_fragment
@@ -609,12 +638,14 @@ class PeachHTML5Editor
 				domify @outer_idoc, text: css
 			]
 			@outer_idoc.head.appendChild icss
-			@iframe = domify @outer_idoc, iframe: {}
+			@iframe = domify @outer_idoc, iframe: sandbox: 'allow-same-origin allow-scripts'
 			@iframe.onload = =>
-				@init()
-			setTimeout (=> @init() unless @inited), 200 # firefox never fires this onload
+				@init_1()
+			timeout 200, => # firefox never fires this onload
+				@init_1() unless @init_1_called
 			@outer_idoc.body.appendChild(
 				domify @outer_idoc, div: id: 'wrap1', children: [
+					domify @outer_idoc, div: style: "position: absolute; top: 0; left: 1px; font-size: 10px", children: [ domify @outer_idoc, text: "Peach HTML5 Editor" ]
 					@wrap2 = domify @outer_idoc, div: id: 'wrap2', children: [
 						domify @outer_idoc, div: id: 'wrap3', children: [
 							@iframe
@@ -634,23 +665,39 @@ class PeachHTML5Editor
 		@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)
+	init_1: -> # @iframe has loaded (but not it's css)
 		@idoc = @iframe.contentDocument
+		@init_1_called = true
+		# chromium doesn't resolve relative urls as though they were at the same domain
+		# so add a <base> tag
+		@idoc.head.appendChild domify @idoc, base: href: this_url_sans_path()
+		# don't let @iframe have scrollbars
+		@idoc.head.appendChild domify @idoc, style: children: [domify @idoc, text: "body { overflow: hidden; }"]
+		# load css file
+		if @options.css_file
+			istyle = domify @idoc, link: rel: 'stylesheet', href: @options.css_file
+			istyle.onload = =>
+				@init_2()
+			@idoc.head.appendChild istyle
+		else
+			@init_2()
+	init_2: -> # @iframe and it's css file(s) are ready
 		@overlay.onclick = (e) =>
+			@have_focus()
 			return event_return e, @onclick e
 		@overlay.ondoubleclick = (e) =>
+			@have_focus()
 			return event_return e, @ondoubleclick e
 		@outer_idoc.body.onkeyup = (e) =>
+			@have_focus()
 			return event_return e, @onkeyup e
 		@outer_idoc.body.onkeydown = (e) =>
+			@have_focus()
 			return event_return e, @onkeydown e
 		@outer_idoc.body.onkeypress = (e) =>
+			@have_focus()
 			return event_return e, @onkeypress e
-		if @options.stylesheet
-			# TODO test this
-			@idoc.head.appendChild domify @idoc, style: src: @options.stylesheet
 		@load_html @in_el.value
-		@inited = true
 		if @options.on_init?
 			@options.on_init()
 	overlay_event_to_inner_xy: (e) ->
@@ -742,7 +789,7 @@ class PeachHTML5Editor
 	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
+		# return false if control_key_codes[e.keyCode]? # handled in keydown
 		char = e.charCode ? e.keyCode
 		if char and @cursor?
 			char = String.fromCharCode char
@@ -775,8 +822,15 @@ class PeachHTML5Editor
 		@in_el.value = @pretty_html @tree
 		@in_el.onchange = =>
 			@load_html @in_el.value
-		@iframe.style.height = "0"
-		@iframe.style.height = "#{@idoc.body.scrollHeight}px"
+		@adjust_iframe_height()
+	adjust_iframe_height: ->
+		h = parseInt(@idoc.body.scrollHeight, 10)
+		if @iframe_height isnt h
+			@iframe_height = h
+			s = @wrap2.scrollTop
+			@iframe.style.height = "0"
+			@iframe.style.height = "#{h}px"
+			@wrap2.scrollTop = s
 	kill_cursor: -> # remove it, forget where it was
 		if @cursor_visible
 			@cursor_el.parentNode.removeChild @cursor_el
@@ -847,12 +901,14 @@ class PeachHTML5Editor
 						display = cs['display']
 						position = cs['position']
 						float = cs['float']
+						visibility = cs['visibility']
 					else
 						cs = @iframe.contentWindow.getComputedStyle(n.el, null)
 						whitespace = cs.getPropertyValue 'white-space'
 						display = cs.getPropertyValue 'display'
 						position = cs.getPropertyValue 'position'
 						float = cs.getPropertyValue 'float'
+						visibility = cs.getPropertyValue 'visibility'
 					if n.name is 'textarea'
 						inner_flags.pre_ish = true
 					else
@@ -868,7 +924,11 @@ class PeachHTML5Editor
 									if 'display' is 'none'
 										in_flow = false
 									else
-										in_flow = true
+										switch visibility
+											when 'hidden', 'collapse'
+												in_flow = false
+											else # visible
+												in_flow = true
 					switch display
 						when 'inline', 'none'
 							inner_flags.block = false
@@ -938,6 +998,21 @@ class PeachHTML5Editor
 				if prev_in_flow_is_block or parent_flags.block
 					ret += "\n#{indent.substr 4}"
 		return ret
+	onblur: ->
+		@kill_cursor()
+	have_focus: ->
+		@editor_is_focused = true
+		@poll_for_blur()
+	poll_for_blur: ->
+		return if @poll_for_blur_timeout? # already polling
+		@poll_for_blur_timeout = timeout 150, =>
+			next_frame => # pause polling when browser knows we're not active/visible/etc.
+				@poll_for_blur_timeout = null
+				if document.activeElement is @outer_iframe
+					@poll_for_blur()
+				else
+					@editor_is_focused = false
+					@onblur()
 
 window.peach_html5_editor = (args...) ->
 	return new PeachHTML5Editor args...