--- /dev/null
+// Copyright 2015 Jason Woofenden
+// This file implements an WYSIWYG editor in the browser (no contenteditable)
+//
+// This program is free software: you can redistribute it and/or modify it under
+// the terms of the GNU Affero General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option) any
+// later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+// details.
+//
+// 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/>.
+
+(function() {
+var KEY_BACKSPACE, KEY_DELETE, KEY_DOWN, KEY_END, KEY_ENTER, KEY_ESCAPE, KEY_HOME, KEY_INSERT, KEY_LEFT, KEY_PAGE_DOWN, KEY_PAGE_UP, KEY_RIGHT, KEY_TAB, KEY_UP, breathing_room, control_key_codes, enc_attr_regex, enc_text_regex, event_return, find_prev_cursor_position, find_up_cursor_position, get_el_bounds, ignore_key_codes, js_attr_regex, multi_sp_regex, no_text_elements, overlay_padding, text_range_bounds, valid_attr_regex, void_elements, ws_props, xy_to_cursor, slice = [].slice
+
+// SETTINGS
+overlay_padding = 10
+breathing_room = 30 // minimum pixels above/below cursor (scrolling)
+
+function timeout (ms, cb) {
+ return setTimeout(cb, ms)
+}
+
+function next_frame (cb) {
+ if (window.requestAnimationFrame != null) {
+ window.requestAnimationFrame(cb)
+ } else {
+ timeout(16, cb)
+ }
+}
+
+function this_url_sans_path () {
+ var clip, ret
+ 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
+}
+
+// table too look up the properties of various values for css's white-space
+ws_props = {
+ normal: {
+ space: false, // spaces are not preserved/rendered
+ newline: false, // newlines are not preserved/rendered
+ wrap: true, // text is word-wrapped
+ to_preserve: 'pre-wrap' // to preservespaces, change white-space to this
+ },
+ nowrap: {
+ space: false,
+ newline: false,
+ wrap: false,
+ to_preserve: 'pre'
+ },
+ 'pre-line': {
+ space: false,
+ newline: true,
+ wrap: true,
+ to_preserve: 'pre-wrap'
+ },
+ pre: {
+ space: true,
+ newline: true,
+ wrap: false,
+ to_collapse: 'nowrap'
+ },
+ 'pre-wrap': {
+ space: true,
+ newline: true,
+ wrap: true,
+ to_collapse: 'normal'
+ }
+}
+
+// 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].')
+// html5 spec says that only these characters are collapsable
+multi_sp_regex = new RegExp('[\u0020\u0009\u000a\u000c\u000d][\u0020\u0009\u000a\u000c\u000d]')
+
+function str_has_ws_run (str) {
+ return multi_sp_regex.test(str)
+}
+
+// text nodes don't have getBoundingClientRect(), so use selection api to find
+// it.
+get_el_bounds = window.bounds = function(el) {
+ var doc, range, rect, win, x_fix, y_fix
+ if (el.getBoundingClientRect != null) {
+ rect = el.getBoundingClientRect()
+ } else {
+ // text nodes don't have getBoundingClientRect(), so use range api
+ range = el.ownerDocument.createRange()
+ range.selectNodeContents(el)
+ rect = range.getBoundingClientRect()
+ }
+ doc = el.ownerDocument.documentElement
+ win = el.ownerDocument.defaultView
+ y_fix = win.pageYOffset - doc.clientTop
+ x_fix = win.pageXOffset - doc.clientLeft
+ return {
+ x: rect.left + x_fix,
+ y: rect.top + y_fix,
+ w: rect.width != null ? rect.width : rect.right - rect.left,
+ h: rect.height != null ? rect.height : rect.top - rect.bottom
+ }
+}
+
+function is_display_block (el) {
+ if (el.currentStyle != null) {
+ return el.currentStyle.display === 'block'
+ } else {
+ return window.getComputedStyle(el, null).getPropertyValue('display') === 'block'
+ }
+}
+
+// Pass return value from dom event handlers to this.
+// If they return false, this will addinionally stop propagation and default.
+function event_return (e, bool) {
+ if (bool === false) {
+ if (e.stopPropagation != null) {
+ e.stopPropagation()
+ }
+ if (e.preventDefault != null) {
+ 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)
+// Note: sometimes returns null (eg for whitespace that is not visible)
+text_range_bounds = function(el, start, end) {
+ var doc, range, rect, rects, win, x_fix, y_fix
+ range = document.createRange()
+ range.setStart(el, start)
+ range.setEnd(el, end)
+ rects = range.getClientRects()
+ if (rects.length > 0) {
+ if (rects.length > 1) {
+ if (rects[1].width > rects[0].width) {
+ rect = rects[1]
+ } else {
+ rect = rects[0]
+ }
+ } else {
+ rect = rects[0]
+ }
+ } else {
+ return null
+ }
+ doc = el.ownerDocument.documentElement
+ win = el.ownerDocument.defaultView
+ y_fix = win.pageYOffset - doc.clientTop
+ x_fix = win.pageXOffset - doc.clientLeft
+ return {
+ x: rect.left + x_fix,
+ y: rect.top + y_fix,
+ w: rect.width != null ? rect.width : rect.right - rect.left,
+ h: rect.height != null ? rect.height : rect.top - rect.bottom,
+ rects: rects,
+ bounding: range.getBoundingClientRect()
+ }
+}
+
+function CursorPosition(args) {
+ this.n = args.n != null ? args.n : null
+ this.i = args.i != null ? args.i : null
+ if (args.x != null) {
+ this.x = args.x
+ this.y = args.y
+ this.h = args.h
+ } else {
+ this.set_xyh()
+ }
+}
+
+CursorPosition.prototype.set_xyh = function() {
+ var range, ret
+ range = document.createRange()
+ if (this.n.text.length === 0) {
+ ret = text_range_bounds(this.n.el, 0, 0)
+ } else if (this.i === this.n.text.length) {
+ ret = text_range_bounds(this.n.el, this.i - 1, this.i)
+ if (ret != null) {
+ ret.x += ret.w
+ }
+ } else {
+ ret = text_range_bounds(this.n.el, this.i, this.i + 1)
+ }
+ if (ret != null) {
+ this.x = ret.x
+ this.y = ret.y
+ this.h = ret.h
+ } else {
+ this.x = null
+ this.y = null
+ this.h = null
+ }
+ return ret
+}
+
+function new_cursor_position (args) {
+ var ret
+ ret = new CursorPosition(args)
+ if (ret.x != null) {
+ return ret
+ }
+ return null
+}
+
+// encode text so it can be safely placed inside an html attribute
+enc_attr_regex = new RegExp('(&)|(")|(\u00A0)', 'g')
+function enc_attr (txt) {
+ return txt.replace(enc_attr_regex, function(match, amp, quote) {
+ if (amp) {
+ return '&'
+ }
+ if (quote) {
+ return '"'
+ }
+ return ' '
+ })
+}
+enc_text_regex = new RegExp('(&)|(<)|(\u00A0)', 'g')
+function enc_text (txt) {
+ return txt.replace(enc_text_regex, function(match, amp, lt) {
+ if (amp) {
+ return '&'
+ }
+ if (lt) {
+ return '<'
+ }
+ return ' '
+ })
+}
+
+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
+}
+// TODO make these always pretty-print (on the inside) like blocks
+// TODO careful though: whitespace might get pushed to parent, which might be rendered
+no_text_elements = { // these elements never contain text
+ select: true,
+ table: true,
+ tr: true,
+ thead: true,
+ tbody: true,
+ ul: true,
+ ol: true
+}
+
+function domify (doc, hash) {
+ var attrs, el, i, k, tag, v
+ for (tag in hash) {
+ attrs = hash[tag]
+ if (tag === 'text') {
+ return document.createTextNode(attrs)
+ }
+ el = document.createElement(tag)
+ for (k in attrs) {
+ v = attrs[k]
+ if (k === 'children') {
+ for (i = 0; i < v.length; i++) {
+ el.appendChild(v[i])
+ }
+ } else {
+ el.setAttribute(k, v)
+ }
+ }
+ }
+ return el
+}
+
+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
+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
+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
+}
+
+function instantiate_tree (tree, parent) {
+ var c, i, k, remove, results, v
+ remove = []
+ for (i = 0; i < tree.length; ++i) {
+ c = tree[i]
+ switch (c.type) {
+ case 'text':
+ c.el = parent.ownerDocument.createTextNode(c.text)
+ parent.appendChild(c.el)
+ break
+ case 'tag':
+ if (c.name === 'script' || c.name === 'object' || c.name === 'iframe' || c.name === 'link') {
+ // TODO put placeholders instead
+ remove.unshift(i)
+ continue
+ }
+ // TODO create in correct namespace
+ c.el = parent.ownerDocument.createElement(c.name)
+ ref1 = c.attrs
+ for (k in ref1) {
+ v = ref1[k]
+ // FIXME if attr_whitelist[k]?
+ if (valid_attr_regex.test(k)) {
+ if (!js_attr_regex.test(k)) {
+ c.el.setAttribute(k, v)
+ }
+ }
+ }
+ parent.appendChild(c.el)
+ if (c.children.length) {
+ instantiate_tree(c.children, c.el)
+ }
+ }
+ }
+ results = []
+ for (i = 0; i < remove.length; i++) {
+ // FIXME this deletes the wrong node when siblings are removed
+ index = remove[i]
+ results.push(tree.splice(index, 1))
+ }
+ return results
+}
+
+function traverse_tree (tree, cb) {
+ var c, done, i
+ done = false
+ for (i = 0; i < tree.length; i++) {
+ c = tree[i]
+ done = cb(c)
+ if (done) {
+ return done
+ }
+ if (c.children.length) {
+ done = traverse_tree(c.children, cb)
+ if (done) {
+ return done
+ }
+ }
+ }
+ return done
+}
+
+function first_cursor_position (tree) {
+ var found
+ found = null
+ traverse_tree(tree, function(node, state) {
+ var cursor
+ if (node.type === 'text') {
+ cursor = new_cursor_position({n: node, i: 0})
+ if (cursor != null) {
+ found = cursor
+ return true // done traversing
+ }
+ }
+ return false // not done traversing
+ })
+ return found // maybe null
+}
+
+// this will fail when text has non-locatable cursor positions (eg collapsed whitespace)
+function find_next_cursor_position (tree, cursor) {
+ var found, new_cursor, state_before
+ if (cursor.n.type === 'text' && cursor.n.text.length > cursor.i) {
+ new_cursor = new_cursor_position({n: cursor.n, i: cursor.i + 1})
+ if (new_cursor != null) {
+ return new_cursor
+ }
+ }
+ state_before = true
+ found = null
+ traverse_tree(tree, function(node, state) {
+ if (node.type === 'text' && state_before === false) {
+ new_cursor = new_cursor_position({n: node, i: 0})
+ if (new_cursor != null) {
+ found = new_cursor
+ return true // done traversing
+ }
+ }
+ if (node === cursor.n) {
+ state_before = false
+ }
+ return false // not done traversing
+ })
+ if (found != null) {
+ return found
+ }
+ return null
+}
+
+function last_cursor_position (tree) {
+ var found
+ found = null
+ traverse_tree(tree, function(node) {
+ var cursor
+ if (node.type === 'text') {
+ cursor = new_cursor_position({n: node, i: node.text.length})
+ if (cursor != null) {
+ found = cursor
+ }
+ }
+ return false // not done traversing
+ })
+ return found // maybe null
+}
+
+// this will fail when text has non-locatable cursor positions (eg collapsed whitespace)
+function find_prev_cursor_position (tree, cursor) {
+ var found, found_prev, new_cursor
+ if (cursor.n.type === 'text' && cursor.i > 0) {
+ new_cursor = new_cursor_position({n: cursor.n, i: cursor.i - 1})
+ if (new_cursor != null) {
+ return new_cursor
+ }
+ }
+ found_prev = null
+ found = null
+ traverse_tree(tree, function(node) {
+ if (node === cursor.n) {
+ found = found_prev // maybe null
+ return true // done traversing
+ }
+ if (node.type === 'text') {
+ new_cursor = new_cursor_position({n: node, i: node.text.length})
+ if (new_cursor != null) {
+ found_prev = new_cursor
+ }
+ }
+ return false // not done traversing
+ })
+ return found // maybe null
+}
+
+function find_up_cursor_position (tree, cursor, ideal_x) {
+ var new_cursor, prev_cursor, target_y
+ new_cursor = cursor
+ // go prev until we're higher on y axis
+ while (new_cursor.y >= cursor.y) {
+ new_cursor = find_prev_cursor_position(tree, new_cursor)
+ if (new_cursor == null) {
+ return null
+ }
+ }
+ // done early if we're already left of old cursor position
+ if (new_cursor.x <= ideal_x) {
+ return new_cursor
+ }
+ target_y = new_cursor.y
+ // search leftward, until we find the closest position
+ // new_cursor is the prev-most position we've checked
+ // prev_cursor is the older value, so it's not as prev as new_cursor
+ while (new_cursor.x > ideal_x && new_cursor.y === target_y) {
+ prev_cursor = new_cursor
+ new_cursor = find_prev_cursor_position(tree, new_cursor)
+ if (new_cursor == null) {
+ break
+ }
+ }
+ // move cursor to prev_cursor or new_cursor
+ if (new_cursor != null) {
+ if (new_cursor.y === target_y) {
+ // both valid, and on the same line, use closest
+ if ((ideal_x - new_cursor.x) < (prev_cursor.x - ideal_x)) {
+ return new_cursor
+ } else {
+ return prev_cursor
+ }
+ } else {
+ // new_cursor on wrong line, use prev_cursor
+ return prev_cursor
+ }
+ } else {
+ // can't go any further prev, use prev_cursor
+ return prev_cursor
+ }
+}
+
+function find_down_cursor_position (tree, cursor, ideal_x) {
+ var new_cursor, prev_cursor, target_y
+ new_cursor = cursor
+ // go next until we move on the y axis
+ while (new_cursor.y <= cursor.y) {
+ new_cursor = find_next_cursor_position(tree, new_cursor)
+ if (new_cursor == null) {
+ return null
+ }
+ }
+ // done early if we're already right of old cursor position
+ if (new_cursor.x >= ideal_x) {
+ // this would be strange, but could happen due to runaround
+ return new_cursor
+ }
+ target_y = new_cursor.y
+ // search rightward, until we find the closest position
+ // new_cursor is the next-most position we've checked
+ // prev_cursor is the older value, so it's not as next as new_cursor
+ while (new_cursor.x < ideal_x && new_cursor.y === target_y) {
+ prev_cursor = new_cursor
+ new_cursor = find_next_cursor_position(tree, new_cursor)
+ if (new_cursor == null) {
+ break
+ }
+ }
+ if (new_cursor != null) {
+ if (new_cursor.y === target_y) {
+ // both valid, and on the same line, use closest
+ if ((new_cursor.x - ideal_x) < (ideal_x - prev_cursor.x)) {
+ return new_cursor
+ } else {
+ return prev_cursor
+ }
+ } else {
+ // new_cursor on wrong line, use prev_cursor
+ return prev_cursor
+ }
+ } else {
+ // can't go any further prev, use prev_cursor
+ return prev_cursor
+ }
+}
+
+function xy_to_cursor (tree, xy) {
+ var after, before, bounds, cur, guess_i, i, n, ret
+ for (i = 0; i < tree.length; i++) {
+ n = tree[i]
+ if (n.type === 'tag' || n.type === 'text') {
+ bounds = get_el_bounds(n.el)
+ if (xy.x < bounds.x) {
+ continue
+ }
+ if (xy.x > bounds.x + bounds.w) {
+ continue
+ }
+ if (xy.y < bounds.y) {
+ continue
+ }
+ if (xy.y > bounds.y + bounds.h) {
+ continue
+ }
+ if (n.children.length) {
+ ret = xy_to_cursor(n.children, xy)
+ if (ret != null) {
+ return ret
+ }
+ }
+ if (n.type === 'text') {
+ // click is within bounding box that contains all text.
+ if (n.text.length === 0) {
+ ret = new_cursor_position({n: n, i: 0})
+ if (ret != null) {
+ return ret
+ }
+ continue
+ }
+ before = new_cursor_position({n: n, i: 0})
+ if (before == null) {
+ continue
+ }
+ after = new_cursor_position({n: n, i: n.text.length})
+ if (after == null) {
+ continue
+ }
+ if (xy.y < before.y + before.h && xy.x < before.x) {
+ // console.log 'before first char on first line'
+ continue
+ }
+ if (xy.y > after.y && xy.x > after.x) {
+ // console.log 'after last char on last line'
+ continue
+ }
+ if (xy.y < before.y) {
+ console.log("Warning: click in text bounding box but above first line")
+ continue // above first line (runaround?)
+ }
+ if (xy.y > after.y + after.h) {
+ console.log("Warning: click in text bounding box but below last line", xy.y, after.y, after.h)
+ continue // below last line (shouldn't happen?)
+ }
+ while (after.i - before.i > 1) {
+ guess_i = Math.round((before.i + after.i) / 2)
+ cur = new_cursor_position({n: n, i: guess_i})
+ if (cur == null) {
+ console.log("error: failed to find cursor pixel location for", n, guess_i)
+ before = null
+ break
+ }
+ if (xy.y < cur.y || (xy.y <= cur.y + cur.h && xy.x < cur.x)) {
+ after = cur
+ } else {
+ before = cur
+ }
+ }
+ if (before == null) { // signals failure to find a cursor position
+ continue
+ }
+ // which one is closest?
+ if (Math.abs(before.x - xy.x) < Math.abs(after.x - xy.x)) {
+ return before
+ } else {
+ return after
+ }
+ }
+ }
+ }
+ return null
+}
+
+// browsers collapse these (html5 spec calls these "space characters")
+function is_space_code (char_code) {
+ switch (char_code) {
+ case 9:
+ case 10:
+ case 12:
+ case 13:
+ case 32:
+ return true
+ }
+ return false
+}
+function is_space (chr) {
+ return is_space_code(chr.charCodeAt(0))
+}
+
+function tree_remove_empty_text_nodes (tree) {
+ var c, empties, i, j, n
+ empties = []
+ traverse_tree(tree, function(n) {
+ if (n.type === 'text') {
+ if (n.text.length === 0) {
+ empties.unshift(n)
+ }
+ }
+ return false // not done traversing
+ })
+ for (i = 0; i < empties.length; i++) {
+ n = empties[i]
+ // don't completely empty the tree
+ if (tree.length === 1) {
+ if (tree[0].type === 'text') {
+ console.log("oop, leaving a blank node because it's the only thing")
+ return
+ }
+ }
+ n.el.parentNode.removeChild(n.el)
+ ref = n.parent.children
+ for (j = 0; j < ref.length; ++j) {
+ c = ref[j]
+ if (c === n) {
+ n.parent.children.splice(j, 1)
+ break
+ }
+ }
+ }
+}
+
+function PeachHTML5Editor (in_el, options) {
+ // 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
+ var css, opt_fragment, outer_bounds, outer_iframe_style, outer_wrap
+ this.options = options != null ? options : {}
+ this.in_el = in_el
+ this.tree = null // array of Nodes, all editable content
+ this.tree_parent = null // this.tree is this.children. .el might === this.idoc.body
+ this.matting = []
+ this.init_1_called = false // when iframes have loaded
+ this.outer_iframe // iframe to hold editor
+ this.outer_idoc // "document" object for this.outer_iframe
+ this.wrap2 = null // scrollbar is on this
+ this.wrap2_offset = null
+ this.wrap2_height = null // including padding
+ this.iframe = null // iframe to hold editable content
+ this.idoc = null // "document" object for this.iframe
+ this.cursor = null
+ this.cursor_el = null
+ this.cursor_visible = false
+ this.cursor_ideal_x = null
+ this.poll_for_blur_timeout = null
+ opt_fragment = this.options.fragment != null ? this.options.fragment : true
+ this.parser_opts = {}
+ if (opt_fragment) {
+ this.parser_opts.fragment = 'body'
+ }
+ this.outer_iframe = domify(document, {iframe: {}})
+ outer_iframe_style = 'border: none !important; margin: 0 !important; padding: 0 !important; height: 100% !important; width: 100% !important;'
+ if (this.options.editor_id != null) {
+ this.outer_iframe.setAttribute('id', this.options.editor_id)
+ }
+ this.outer_iframe.onload = (function(_this) {
+ return function() {
+ var icss
+ _this.outer_idoc = _this.outer_iframe.contentDocument
+ icss = domify(_this.outer_idoc, { style: { children: [
+ domify(_this.outer_idoc, {text: css})
+ ]}})
+ _this.outer_idoc.head.appendChild(icss)
+ _this.iframe = domify(_this.outer_idoc, {iframe: {sandbox: 'allow-same-origin allow-scripts'}})
+ _this.iframe.onload = function() {
+ return _this.init_1()
+ }
+ timeout(200, function() { // firefox never fires this onload
+ if (!_this.init_1_called) {
+ return _this.init_1()
+ }
+ })
+ _this.outer_idoc.body.appendChild(
+ domify(_this.outer_idoc, {div: {id: 'wrap1', children: [
+ domify(_this.outer_idoc, {div: {
+ style: "position: absolute; top: 0; left: 1px; font-size: 10px",
+ children: [domify(_this.outer_idoc, {text: "Peach HTML5 Editor"})]
+ }}),
+ _this.wrap2 = domify(_this.outer_idoc, {div: {id: 'wrap2', children: [
+ domify(_this.outer_idoc, {div: {id: 'wrap3', children: [
+ _this.iframe,
+ _this.overlay = domify(_this.outer_idoc, { div: { id: 'overlay' }})
+ ]}})
+ ]}})
+ ]}})
+ )
+ }
+ })(this)
+ outer_wrap = domify(document, {div: {"class": 'peach_html5_editor' }})
+ this.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;"
+ this.outer_iframe.setAttribute('style', outer_iframe_style)
+ css = this.generate_outer_css({w: outer_bounds.w, h: outer_bounds.h})
+ outer_wrap.appendChild(this.outer_iframe)
+}
+PeachHTML5Editor.prototype.init_1 = function() { // this.iframe has loaded (but not it's css)
+ var istyle
+ this.idoc = this.iframe.contentDocument
+ this.init_1_called = true
+ // chromium doesn't resolve relative urls as though they were at the same domain
+ // so add a <base> tag
+ this.idoc.head.appendChild(domify(this.idoc, {base: {href: this_url_sans_path()}}))
+ // don't let @iframe have scrollbars
+ this.idoc.head.appendChild(domify(this.idoc, {style: {children: [
+ domify(this.idoc, {text: "body { overflow: hidden; }"})
+ ]}}))
+ if (this.options.css_file) {
+ istyle = domify(this.idoc, {link: {rel: 'stylesheet', href: this.options.css_file}})
+ istyle.onload = (function(_this) {
+ return function() {
+ return _this.init_2()
+ }
+ })(this)
+ this.idoc.head.appendChild(istyle)
+ } else {
+ this.init_2()
+ }
+}
+PeachHTML5Editor.prototype.init_2 = function() { // this.iframe and it's css file(s) are ready
+ this.overlay.onclick = (function(_this) {
+ return function(e) {
+ _this.have_focus()
+ return event_return(e, _this.onclick(e))
+ }
+ })(this)
+ this.overlay.ondoubleclick = (function(_this) {
+ return function(e) {
+ _this.have_focus()
+ return event_return(e, _this.ondoubleclick(e))
+ }
+ })(this)
+ this.outer_idoc.body.onkeyup = (function(_this) {
+ return function(e) {
+ _this.have_focus()
+ return event_return(e, _this.onkeyup(e))
+ }
+ })(this)
+ this.outer_idoc.body.onkeydown = (function(_this) {
+ return function(e) {
+ _this.have_focus()
+ return event_return(e, _this.onkeydown(e))
+ }
+ })(this)
+ this.outer_idoc.body.onkeypress = (function(_this) {
+ return function(e) {
+ _this.have_focus()
+ return event_return(e, _this.onkeypress(e))
+ }
+ })(this)
+ this.load_html(this.in_el.value)
+ if (this.options.on_init != null) {
+ return this.options.on_init()
+ }
+}
+PeachHTML5Editor.prototype.generate_outer_css = function(args) {
+ var frame_width, h, inner_padding, occupy, ret, w
+ w = args.w != null ? args.w : 300
+ h = args.h != null ? args.h : 300
+ inner_padding = args.inner_padding != null ? args.inner_padding : overlay_padding
+ frame_width = args.frame_width != null ? args.frame_width : inner_padding
+ occupy = function(left, top, right, bottom) {
+ if (top == null) {
+ top = left
+ }
+ if (right == null) {
+ right = left
+ }
+ if (bottom == null) {
+ 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 += 'color: black;'
+ ret += 'background: white;'
+ ret += '}'
+ ret += '#wrap1 {'
+ ret += "border: " + (occupy(1)) + "px solid black;"
+ ret += "padding: " + (occupy(frame_width)) + "px;"
+ ret += '}'
+ ret += '#wrap2 {'
+ ret += "border: " + (occupy(1)) + "px solid black;"
+ this.wrap2_height = h // including padding because padding scrolls
+ ret += "padding: " + (occupy(inner_padding)) + "px;"
+ ret += "padding-right: " + (inner_padding + occupy(0, 0, 15, 0)) + "px;"
+ 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 += 'margin: 0;'
+ ret += 'border: none;'
+ ret += 'padding: 0;'
+ ret += "width: " + w + "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;'
+ 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 += 'width: 2px;'
+ 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 += '0%{background-position:0% 0%}'
+ ret += '100%{background-position:0% -100%}'
+ ret += '}'
+ ret += '@keyframes blink { '
+ ret += '0%{background-position:0% 0%}'
+ ret += '100%{background-position:0% -100%}'
+ ret += '}'
+ ret += '.ann_box {'
+ ret += 'z-index: 5;'
+ ret += 'position: absolute;'
+ ret += 'border: 1px solid rgba(0,0,0,0.1);'
+ ret += 'outline: 1px solid rgba(255,255,255,0.1);' // in case there's a black background
+ ret += '}'
+ ret += '.ann_tag {'
+ ret += 'z-index: 10;'
+ ret += 'position: absolute;'
+ 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
+}
+PeachHTML5Editor.prototype.overlay_event_to_inner_xy = function(e) {
+ var x, y
+ if (this.wrap2_offset == null) {
+ this.wrap2_offset = get_el_bounds(this.wrap2)
+ }
+ x = e.pageX - overlay_padding
+ y = e.pageY - overlay_padding + this.wrap2.scrollTop
+ return {
+ x: x - this.wrap2_offset.x,
+ y: y - this.wrap2_offset.y
+ }
+}
+PeachHTML5Editor.prototype.onclick = function(e) {
+ var new_cursor, xy
+ xy = this.overlay_event_to_inner_xy(e)
+ new_cursor = xy_to_cursor(this.tree, xy)
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ } else {
+ this.kill_cursor()
+ }
+ return false
+}
+PeachHTML5Editor.prototype.ondoubleclick = function(e) {
+ return false
+}
+PeachHTML5Editor.prototype.onkeyup = function(e) {
+ if (e.ctrlKey) {
+ return
+ }
+ if (ignore_key_codes[e.keyCode] != null) {
+ return false
+ }
+ //return false if control_key_codes[e.keyCode] != null
+}
+PeachHTML5Editor.prototype.onkeydown = function(e) {
+ var new_cursor, saved_ideal_x
+ if (e.ctrlKey) {
+ return
+ }
+ if (ignore_key_codes[e.keyCode] != null) {
+ return false
+ }
+ //return false if control_key_codes[e.keyCode] != null
+ switch (e.keyCode) {
+ case KEY_LEFT:
+ if (this.cursor != null) {
+ new_cursor = find_prev_cursor_position(this.tree, this.cursor)
+ } else {
+ new_cursor = first_cursor_position(this.tree)
+ }
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ }
+ return false
+ case KEY_RIGHT:
+ if (this.cursor != null) {
+ new_cursor = find_next_cursor_position(this.tree, this.cursor)
+ } else {
+ new_cursor = last_cursor_position(this.tree)
+ }
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ }
+ return false
+ case KEY_UP:
+ if (this.cursor != null) {
+ new_cursor = find_up_cursor_position(this.tree, this.cursor, this.cursor_ideal_x)
+ if (new_cursor != null) {
+ saved_ideal_x = this.cursor_ideal_x
+ this.move_cursor(new_cursor)
+ this.cursor_ideal_x = saved_ideal_x
+ }
+ } else {
+ // move cursor to first position in document
+ new_cursor = first_cursor_position(this.tree)
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ }
+ }
+ return false
+ case KEY_DOWN:
+ if (this.cursor != null) {
+ new_cursor = find_down_cursor_position(this.tree, this.cursor, this.cursor_ideal_x)
+ if (new_cursor != null) {
+ saved_ideal_x = this.cursor_ideal_x
+ this.move_cursor(new_cursor)
+ this.cursor_ideal_x = saved_ideal_x
+ }
+ } else {
+ // move cursor to first position in document
+ new_cursor = last_cursor_position(this.tree)
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ }
+ }
+ return false
+ case KEY_END:
+ new_cursor = last_cursor_position(this.tree)
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ }
+ return false
+ case KEY_BACKSPACE:
+ this.on_key_backspace(e)
+ return false
+ case KEY_DELETE:
+ if (this.cursor == null) {
+ return false
+ }
+ new_cursor = find_next_cursor_position(this.tree, {n: this.cursor.n, i: this.cursor.i})
+ // try moving cursor right and then running backspace code
+ // TODO replace this hack with a real implementation
+ if (new_cursor != null) {
+ // try to detect common case where cursor goes inside an block,
+ // but doesn't pass a character (and advance one more in that case)
+ if (new_cursor.n !== this.cursor.n && new_cursor.i === 0) {
+ if (new_cursor.n.type === 'text' && new_cursor.n.text.length > 0) {
+ if (new_cursor.n.parent != null) {
+ if (!this.is_display_block(new_cursor.n.parent)) {
+ // FIXME should test run sibling
+ new_cursor = new_cursor_position({n: new_cursor.n, i: new_cursor.i + 1})
+ }
+ }
+ }
+ }
+ }
+ if (new_cursor != null) {
+ if (new_cursor.n !== this.cursor.n || new_cursor.i !== this.cursor.i) {
+ this.move_cursor(new_cursor)
+ this.on_key_backspace(e)
+ }
+ }
+ return false
+ case KEY_ENTER:
+ this.on_key_enter(e)
+ return false
+ case KEY_ESCAPE:
+ this.kill_cursor()
+ return false
+ case KEY_HOME:
+ new_cursor = first_cursor_position(this.tree)
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ }
+ return false
+ case KEY_INSERT:
+ return false
+ case KEY_PAGE_UP:
+ this.on_page_up_key(e)
+ return false
+ case KEY_PAGE_DOWN:
+ this.on_page_down_key(e)
+ return false
+ case KEY_TAB:
+ return false
+ }
+}
+PeachHTML5Editor.prototype.onkeypress = function(e) {
+ var char, new_cursor
+ if (e.ctrlKey) {
+ return
+ }
+ if (ignore_key_codes[e.keyCode] != null) {
+ return false
+ }
+ char = e.charCode != null ? e.charCode : e.keyCode
+ if (char && (this.cursor != null)) {
+ char = String.fromCharCode(char)
+ this.insert_character(this.cursor.n, this.cursor.i, char)
+ this.text_cleanup(this.cursor.n)
+ this.changed()
+ new_cursor = new_cursor_position({n: this.cursor.n, i: this.cursor.i + 1})
+ if (new_cursor) {
+ this.move_cursor(new_cursor)
+ } else {
+ console.log("ERROR: couldn't find cursor position after insert")
+ this.kill_cursor()
+ }
+ }
+ return false
+}
+PeachHTML5Editor.prototype.on_key_enter = function(e) { // enter key pressed
+ var before, cur_block, i, n, new_cursor, new_node, new_text, parent_el, pc
+ if (!this.cursor_visible) {
+ return
+ }
+ cur_block = this.cursor.n
+ while (true) {
+ if (cur_block.type === 'tag') {
+ if (is_display_block(cur_block.el)) {
+ break
+ }
+ }
+ if (cur_block.parent == null) {
+ return
+ }
+ cur_block = cur_block.parent
+ }
+ // find array to insert new element into
+ if (cur_block.parent === this.tree_parent) {
+ parent_el = this.idoc.body
+ pc = this.tree
+ } else {
+ parent_el = cur_block.parent.el
+ pc = cur_block.parent.children
+ }
+ for (i = 0; i < pc.length; ++i) {
+ n = pc[i]
+ if (n === cur_block) {
+ break
+ }
+ }
+ i += 1 // we want to be after it
+ if (i < pc.length) {
+ before = pc[i].el
+ } else {
+ before = null
+ }
+ // TODO if content after cursor
+ // TODO new block is empty
+ new_text = new peach_parser.Node('text', {text: ' '})
+ new_node = new peach_parser.Node('tag', {
+ name: 'p',
+ parent: cur_block.parent,
+ attrs: {style: 'white-space: pre-wrap'},
+ children: [new_text]
+ })
+ new_text.parent = new_node
+ new_text.el = domify(this.idoc, {text: ' '})
+ new_node.el = domify(this.idoc, {p: {style: 'white-space: pre-wrap', children: [new_text.el]}})
+ pc.splice(i, 0, new_node)
+ parent_el.insertBefore(new_node.el, before)
+ this.changed()
+ new_cursor = new_cursor_position({
+ n: new_text,
+ i: 0
+ })
+ if (new_cursor == null) {
+ throw 'bork bork'
+ }
+ this.move_cursor(new_cursor)
+ // TODO move content past cursor into this new block
+ return false
+}
+// unlike the global function, this takes a Node, not an element
+PeachHTML5Editor.prototype.is_display_block = function(n) {
+ // TODO stop calling global function, merge it into here, use iframe's window object
+ if (n.type !== 'tag') {
+ return false
+ }
+ return is_display_block(n.el)
+}
+PeachHTML5Editor.prototype.find_block_parent = function(n) {
+ while (true) {
+ n = n.parent
+ if (n == null) {
+ return null
+ }
+ if (this.is_display_block(n)) {
+ return n
+ }
+ if (n === this.tree_parent) {
+ return n
+ }
+ }
+ return null
+}
+// return a flat array of nodes (text, <br>, and later also inline-block)
+// that are flowing/wrapping together. n can be the containing block, or any
+// element inside it.
+PeachHTML5Editor.prototype.get_text_run = function(n) {
+ var block, ret
+ ret = []
+ if (this.is_display_block(n)) {
+ block = n
+ } else {
+ block = this.find_block_parent(n)
+ if (block == null) {
+ return ret
+ }
+ }
+ traverse_tree(block.children, (function(_this) { return function(n) {
+ var disp
+ if (n.type === 'text') {
+ ret.push(n)
+ } else if (n.type === 'tag') {
+ if (n.name === 'br') {
+ ret.push(n)
+ } else {
+ disp = _this.computed_style(n)
+ if (disp === 'inline-block') {
+ ret.push(n)
+ }
+ }
+ }
+ return false // not done traversing
+ }})(this))
+ return ret
+}
+PeachHTML5Editor.prototype.node_is_decendant = function(young, old) {
+ while (young != null && young !== this.tree_parent) {
+ if (young === old) {
+ return true
+ }
+ young = young.parent
+ }
+ return false
+}
+// helper for on_key_backspace
+PeachHTML5Editor.prototype._merge_left = function(state) {
+ var pi, prev
+ // the node prev to n was not prev to it a moment ago, merge with it if reasonable
+ pi = state.n.parent.children.indexOf(state.n)
+ if (pi > 0) {
+ prev = state.n.parent.children[pi - 1]
+ if (prev.type === 'text') {
+ state.i = prev.text.length
+ prev.text = prev.el.textContent = prev.text + state.n.text
+ this.remove_node(state.n)
+ state.n = prev
+ state.changed = true
+ state.moved_cursor = true
+ }
+ }
+ // else // TODO merge possible consecutive matching inline tags at @cursor
+ return state
+}
+// helper for on_key_backspace
+// remove n from the dom, also remove its inline parents that are emptied by removing n
+PeachHTML5Editor.prototype._backspace_node_helper = function(n, run, run_i) {
+ var block
+ if (run == null) {
+ run = this.get_text_run(n)
+ }
+ if (run_i == null) {
+ run_i = run.indexOf(n)
+ }
+ block = this.find_block_parent(n)
+ this.remove_node(n)
+ n = n.parent
+ while (n != null && n !== block) {
+ // bail if the previous node in this run is also inside the same parent
+ if (run_i > 0) {
+ if (this.node_is_decendant(run[run_i - 1], n)) {
+ break
+ }
+ }
+ // bail if the next node in this run is also inside the same parent
+ if (run_i + 1 < run.length) {
+ if (this.node_is_decendant(run[run_i + 1], n)) {
+ break
+ }
+ }
+ // move any sibling nodes to parent. These nodes are not in the text run
+ while (n.children.length > 0) {
+ this.move_node(n.children[0], n.parent, n)
+ }
+ // remove (now completely empty) inline parent
+ this.remove_node(n)
+ // proceed to outer parent
+ n = n.parent
+ }
+}
+PeachHTML5Editor.prototype.on_key_backspace = function(e) {
+ var block, changed, merge_state, n, ncb, need_text_cleanup, new_cursor, pcb, post, pre, prev, prev_cursor, run, run_i
+ if (this.cursor == null) {
+ return
+ }
+ new_cursor = null
+ run = null
+ changed = true
+ if (this.cursor.i === 0) { // cursor is at start of text node
+ if (run == null) {
+ run = this.get_text_run(this.cursor.n)
+ }
+ run_i = run.indexOf(this.cursor.n)
+ if (run_i === 0) { // if at start of text run
+ block = this.find_block_parent(this.cursor.n)
+ prev_cursor = find_prev_cursor_position(this.tree, {n: this.cursor.n, i: 0})
+ if (prev_cursor === null) { // if in first text run of document
+ // do nothing (there's nothing text-like to the left of the cursor)
+ return
+ }
+ // else merge with prev/outer text run
+ pcb = this.find_block_parent(prev_cursor.n)
+ while (block.children.length > 0) {
+ this.move_node(block.children[0], pcb)
+ }
+ this.remove_node(block)
+ // merge possible consecutive text nodes at @cursor
+ merge_state = {n: this.cursor.n}
+ this._merge_left(merge_state)
+ this.text_cleanup(merge_state.n)
+ new_cursor = new_cursor_position({n: merge_state.n, i: merge_state.i})
+ } else { // at start of text node, but not start of text run
+ prev = run[run_i - 1]
+ if (prev.type === 'text') { // if previous in text run is text
+ if (prev.text.length === 1) { // if emptying prev (in text run)
+ this._backspace_node_helper(prev, run, run_i)
+ merge_state = {n: this.cursor.n, i: this.cursor.i}
+ this._merge_left(merge_state)
+ this.text_cleanup(merge_state.n)
+ new_cursor = new_cursor_position({n: merge_state.n, i: merge_state.i})
+ } else { // prev in run is text with muliple chars
+ // delete last character in prev
+ prev.text = prev.text.substr(0, prev.text.length - 1)
+ prev.el.textContent = prev.text
+ this.text_cleanup(this.cursor.n)
+ new_cursor = new_cursor_position({n: this.cursor.n, i: this.cursor.i})
+ }
+ } else if (prev.name === 'br' || prev.name === 'hr') {
+ this._backspace_node_helper(prev, run, run_i)
+ merge_state = {n: this.cursor.n, i: this.cursor.i}
+ this._merge_left(merge_state)
+ this.text_cleanup(merge_state.n)
+ new_cursor = new_cursor_position({n: merge_state.n, i: merge_state.i})
+ }
+ // FIXME implement this:
+ // else // if prev (in run) is inline-block
+ // if that inline-block has text in it
+ // delete last char in prev inlineblock
+ // if that empties it
+ // delete it
+ // merge left
+ // else
+ // move cursor inside
+ // else
+ // delete prev (inline) block
+ // merge left
+ // auto-delete this @cursor.parent(s) if this empties them
+ }
+ } else { // cursor is not at start of text node
+ if (run == null) {
+ run = this.get_text_run(this.cursor.n)
+ }
+ if (this.cursor.n.text.length === 1) { // if emptying text node
+ if (run.length === 1) { // if emptying text run (of text/br/hr/inline-block)
+ // remove inline-parents of @cursor.n
+ block = this.find_block_parent(this.cursor.n)
+ changed = false
+ n = this.cursor.n.parent
+ // note: this doesn't use _backspace_node_helper because:
+ // 1. we don't want to delete the target node (we're replacing it's contents)
+ // 2. we want to track whether anything was removed
+ // 3. we know already know there's no other text from this run anywhere
+ while (n && n !== block) {
+ changed = true
+ while (n.children.length > 0) {
+ this.move_node(n.children[0], n.parent, n)
+ }
+ this.remove_node(n)
+ n = n.parent
+ }
+ // replace @cursor.n with a single (preserved) space
+ if (this.cursor.n.text !== ' ') {
+ changed = true
+ this.cursor.n.text = this.cursor.n.el.textContent = ' '
+ }
+ if (changed) {
+ this.text_cleanup(this.cursor.n)
+ }
+ // place the cursor to the left of that space
+ new_cursor = new_cursor_position({n: this.cursor.n, i: 0})
+ } else { // emptying a text node (but not a whole text run)
+ // figure out where cursor should land
+ block = this.find_block_parent(this.cursor.n)
+ new_cursor = find_prev_cursor_position(this.tree, {n: this.cursor.n, i: 0})
+ ncb = this.find_block_parent(new_cursor.n)
+ if (ncb !== block) {
+ new_cursor = find_next_cursor_position(this.tree, {n: this.cursor.n, i: 1})
+ }
+ // delete text node and cleanup emptied parents
+ run_i = run.indexOf(this.cursor.n)
+ this._backspace_node_helper(this.cursor.n, run, run_i)
+ // see if new adjacent siblings should merge
+ // TODO make smarter
+ if (run_i > 0 && run_i + 1 < run.length) {
+ if (run[run_i - 1].type === 'text' && run[run_i + 1].type === 'text') {
+ merge_state = {n: run[run_i + 1]}
+ this._merge_left(merge_state)
+ if (merge_state.moved_cursor) {
+ new_cursor = merge_state
+ }
+ }
+ }
+ // update whitespace preservation
+ this.text_cleanup(block)
+ // update cursor x/y in case things moved around
+ if (new_cursor != null) {
+ if (new_cursor.n.el.parentNode) { // still in dom after cleanup
+ new_cursor = new_cursor_position({n: new_cursor.n, i: new_cursor.i})
+ } else {
+ new_cursor = null
+ }
+ }
+ }
+ } else { // there's a char left of cursor that we can delete without emptying anything
+ // delete character
+ need_text_cleanup = true
+ if (this.cursor.i > 1 && this.cursor.i < this.cursor.n.text.length) {
+ pre = this.cursor.n.text.substr(this.cursor.i - 2, 3)
+ post = pre.charAt(0) + pre.charAt(2)
+ if (str_has_ws_run(pre) === str_has_ws_run(post)) {
+ need_text_cleanup = false
+ }
+ }
+ this.remove_character(this.cursor.n, this.cursor.i - 1)
+ // call text_cleanup if whe created/removed a whitespace run
+ if (need_text_cleanup) {
+ this.text_cleanup(this.cursor.n)
+ }
+ new_cursor = new_cursor_position({n: this.cursor.n, i: this.cursor.i - 1})
+ }
+ }
+ // mark document changed and move the cursor
+ if (changed != null) {
+ this.changed()
+ }
+ if (new_cursor != null) {
+ this.move_cursor(new_cursor)
+ } else {
+ this.kill_cursor()
+ }
+}
+PeachHTML5Editor.prototype.on_page_up_key = function(e) {
+ var new_cursor, screen_y, scroll_amount
+ if (this.wrap2.scrollTop === 0) {
+ if (this.cursor == null) {
+ return
+ }
+ new_cursor = first_cursor_position(this.tree)
+ if (new_cursor != null) {
+ if (new_cursor.n !== this.cursor.n || new_cursor.i !== this.cursor.i) {
+ this.move_cursor(new_cursor)
+ }
+ }
+ return
+ }
+ if (this.cursor != null) {
+ screen_y = this.cursor.y - this.wrap2.scrollTop
+ }
+ scroll_amount = this.wrap2_height - breathing_room
+ this.wrap2.scrollTop = Math.max(0, this.wrap2.scrollTop - scroll_amount)
+ if (this.cursor != null) {
+ return this.move_cursor_into_view(screen_y + this.wrap2.scrollTop)
+ }
+}
+PeachHTML5Editor.prototype.on_page_down_key = function(e) {
+ var lowest_scrollpos, new_cursor, screen_y, scroll_amount
+ lowest_scrollpos = this.wrap2.scrollHeight - this.wrap2_height
+ if (this.wrap2.scrollTop === lowest_scrollpos) {
+ if (this.cursor == null) {
+ return
+ }
+ new_cursor = last_cursor_position(this.tree)
+ if (new_cursor != null) {
+ if (new_cursor.n !== this.cursor.n || new_cursor.i !== this.cursor.i) {
+ this.move_cursor(new_cursor)
+ }
+ }
+ return
+ }
+ if (this.cursor != null) {
+ screen_y = this.cursor.y - this.wrap2.scrollTop
+ }
+ scroll_amount = this.wrap2_height - breathing_room
+ this.wrap2.scrollTop = Math.min(lowest_scrollpos, this.wrap2.scrollTop + scroll_amount)
+ if (this.cursor != null) {
+ this.move_cursor_into_view(screen_y + this.wrap2.scrollTop)
+ }
+}
+PeachHTML5Editor.prototype.move_cursor_into_view = function(y_target) {
+ var cur, far_enough, finder, new_cursor, saved_ideal_x, was, y_max, y_min
+ if (y_target === this.cursor.y) {
+ return
+ }
+ was = this.cursor
+ y_min = this.wrap2.scrollTop
+ if (this.wrap2.scrollTop !== 0) {
+ y_min += breathing_room
+ }
+ y_max = this.wrap2.scrollTop + this.wrap2_height
+ if (this.wrap2.scrollTop !== this.wrap2.scrollHeight - this.wrap2_height) { // downmost
+ y_max -= breathing_room
+ }
+ y_target = Math.min(y_target, y_max)
+ y_target = Math.max(y_target, y_min)
+ if (y_target < this.cursor.y) {
+ finder = find_up_cursor_position
+ far_enough = function(cur, target_y) {
+ return cur.y + cur.h <= target_y
+ }
+ } else {
+ finder = find_down_cursor_position
+ far_enough = function(cur, y_target) {
+ return cur.y >= y_target
+ }
+ }
+ while (true) {
+ cur = finder(this.tree, was, this.cursor_ideal_x)
+ if (cur == null) {
+ break
+ }
+ if (far_enough(cur, y_target)) {
+ break
+ }
+ was = cur
+ }
+ if (was === this.cursor) {
+ was = null
+ }
+ if (was != null) {
+ if (was.y + was.h > y_max) {
+ was = null
+ } else if (was.y < y_min) {
+ was = null
+ }
+ }
+ if (cur != null) {
+ if (cur.y + cur.h > y_max) {
+ cur = null
+ } else if (cur.y < y_min) {
+ cur = null
+ }
+ }
+ if ((cur != null) && (was != null)) {
+ // both valid, pick best
+ if (cur.y < y_min) {
+ new_cursor = was
+ } else if (was.y + was.h > y_max) {
+ new_cursor = cur
+ } else if (cur.y - y_target < y_target - was.y) {
+ new_cursor = cur
+ } else {
+ new_cursor = was
+ }
+ } else {
+ new_cursor = was != null ? was : cur
+ }
+ if (new_cursor != null) {
+ saved_ideal_x = this.cursor_ideal_x
+ this.move_cursor(new_cursor)
+ this.cursor_ideal_x = saved_ideal_x
+ }
+}
+// remove all the editable content (and cursor, overlays, etc)
+PeachHTML5Editor.prototype.clear_dom = function() {
+ while (this.idoc.body.childNodes.length) {
+ this.idoc.body.removeChild(this.idoc.body.childNodes[0])
+ }
+ this.kill_cursor()
+}
+PeachHTML5Editor.prototype.load_html = function(html) {
+ this.tree = peach_parser(html, this.parser_opts)
+ if (this.tree[0] == null ? true : this.tree[0].parent == null) {
+ this.tree = peach_parser('<p style="white-space: pre-wrap"> </p>', this.parser_opts)
+ }
+ this.tree_parent = this.tree[0].parent
+ this.tree_parent.el = this.idoc.body
+ this.clear_dom()
+ instantiate_tree(this.tree, this.tree_parent.el)
+ this.collapse_whitespace(this.tree)
+ return this.changed()
+}
+PeachHTML5Editor.prototype.changed = function() {
+ this.in_el.onchange = null
+ this.in_el.value = this.pretty_html(this.tree)
+ this.in_el.onchange = (function(_this) { return function() {
+ return _this.load_html(_this.in_el.value)
+ }})(this)
+ return this.adjust_iframe_height()
+}
+PeachHTML5Editor.prototype.adjust_iframe_height = function() {
+ var h, s
+ s = this.wrap2.scrollTop
+ // when the content gets shorter, the idoc's body tag will continue to
+ // report the old (too big) height in Chrome. The workaround is to
+ // shrink the iframe before the content height:
+ this.iframe.style.height = "10px"
+ h = parseInt(this.idoc.body.scrollHeight, 10)
+ this.iframe.style.height = h + "px"
+ return this.wrap2.scrollTop = s
+}
+// true if n is text node with only one caracter, and the only child of a tag
+PeachHTML5Editor.prototype.is_only_char_in_tag = function(n, i) {
+ if (n.type !== 'text') {
+ return false
+ }
+ if (n.text.length !== 1) {
+ return false
+ }
+ if (n.parent === this.tree_parent) {
+ return false
+ }
+ if (n.parent.children.length !== 1) {
+ return false
+ }
+ return true
+}
+// true if n is text node with just a space in it, and the only child of a tag
+PeachHTML5Editor.prototype.is_lone_space = function(n, i) {
+ if (n.type !== 'text') {
+ return false
+ }
+ if (n.text !== ' ') {
+ return false
+ }
+ if (n.parent === this.tree_parent) {
+ return false
+ }
+ if (n.parent.children.length !== 1) {
+ return false
+ }
+ return true
+}
+// detect special case: typing before a space that's the only thing in a block/doc
+// reason: enter key creates blocks with just a space in them
+PeachHTML5Editor.prototype.insert_should_replace = function(n, i) {
+ if (i !== 0) {
+ return false
+ }
+ if (n.text !== ' ') {
+ return false
+ }
+ if (n.parent === this.tree_parent) {
+ return true
+ }
+ if (n.parent.children.length === 1) {
+ if (n.parent.children[0] === n) {
+ // n is only child
+ return true
+ }
+ }
+ return false
+}
+// WARNING: after calling this, you MUST call changed() and text_cleanup()
+PeachHTML5Editor.prototype.insert_character = function(n, i, char) {
+ if (n.parent === this.tree_parent) {
+ // FIXME implement text nodes at top level
+ return
+ }
+ // insert the character
+ if (this.insert_should_replace(n, i)) {
+ n.text = char
+ } else if (i === 0) {
+ n.text = char + n.text
+ } else if (i === n.text.length) {
+ n.text += char
+ } else {
+ n.text = n.text.substr(0, i) + char + n.text.substr(i)
+ }
+ return n.el.nodeValue = n.text
+}
+// WARNING: after calling this, you MUST call changed() and text_cleanup()
+PeachHTML5Editor.prototype.remove_character = function(n, i) {
+ n.text = n.text.substr(0, i) + n.text.substr(i + 1)
+ return n.el.nodeValue = n.text
+}
+PeachHTML5Editor.prototype.computed_style = function(n, prop) {
+ var style
+ if (n.type === 'text') {
+ n = n.parent
+ }
+ style = this.iframe.contentWindow.getComputedStyle(n.el, null)
+ return style.getPropertyValue(prop)
+}
+// returns the new white-space value that will preserve spaces for node n
+PeachHTML5Editor.prototype.preserve_space = function(n, ideal_target) {
+ var target, ws, ref
+ if (n.type === 'text') {
+ target = n.parent
+ } else {
+ target = n
+ }
+ while (target !== ideal_target && !target.el.style.whiteSpace) {
+ if (target == null) {
+ console.log("bug #967123")
+ return
+ }
+ target = target.parent
+ }
+ ws = (ref = ws_props[target.el.style.whiteSpace]) != null ? ref.to_preserve : null
+ if (ws == null) {
+ ws = 'pre-wrap'
+ }
+ target.el.style.whiteSpace = ws
+ this.update_style_from_el(target)
+ return ws
+}
+PeachHTML5Editor.prototype.update_style_from_el = function(n) {
+ var style
+ style = n.el.getAttribute('style')
+ if (style != null) {
+ return n.attrs.style = style
+ } else {
+ if (n.attrs.style != null) {
+ return delete n.attrs.style
+ }
+ }
+}
+// remove whitespace that would be trimmed
+// replace whitespace that would collapse with a single space
+// FIXME remove whitespace from after <br> (but not before)
+// FIXME rewrite to
+// check computed white-space prop on txt parents
+// batch replace txt node contents (ie don't loop for each char)
+PeachHTML5Editor.prototype.collapse_whitespace = function(tree) {
+ var cur, cur_i, cur_px, first, iterate, next, next_i, next_pos, next_px, operate, pos, prev, prev_i, prev_pos, prev_px, queue, remove, removed_char, replace_with_space
+ if (tree == null) {
+ tree = this.tree
+ }
+ prev = cur = next = null
+ prev_i = cur_i = next_i = 0
+ prev_pos = pos = next_pos = null
+ prev_px = cur_px = next_px = null
+ first = true
+ removed_char = null
+
+ tree_remove_empty_text_nodes(tree)
+
+ iterate = function(tree, cb) {
+ var advance, block, i, j, n
+ for (j = 0; j < tree.length; j++) {
+ n = tree[j]
+ if (n.type === 'text') {
+ i = 0
+ while (i < n.text.length) { // don't foreach, cb might remove chars
+ advance = cb(n, i)
+ if (advance) {
+ i += 1
+ }
+ }
+ }
+ if (n.type === 'tag') {
+ block = is_display_block(n.el)
+ if (block) {
+ cb(null)
+ }
+ if (n.children.length > 0) {
+ iterate(n.children, cb)
+ }
+ if (block) {
+ cb(null)
+ }
+ }
+ }
+ }
+ // remove cur char
+ remove = function(undo) {
+ if (undo) {
+ cur.el.textContent = cur.text = (cur.text.substr(0, cur_i)) + removed_char + (cur.text.substr(cur_i))
+ if (next === cur) { // in same text node
+ next_i += 1
+ }
+ return -1
+ } else {
+ removed_char = cur.text.charAt(cur_i)
+ cur.el.textContent = cur.text = (cur.text.substr(0, cur_i)) + (cur.text.substr(cur_i + 1))
+ if (next === cur) { // in same text node
+ if (next_i === 0) {
+ throw "how is this possible?"
+ }
+ next_i -= 1
+ }
+ return 1
+ }
+ }
+ replace_with_space = function(undo) {
+ if (undo) {
+ cur.text = (cur.text.substr(0, cur_i)) + removed_char + (cur.text.substr(cur_i + 1))
+ cur.el.textContent = cur.text
+ } else {
+ removed_char = cur.text.charAt(cur_i)
+ if (removed_char !== ' ') {
+ cur.text = (cur.text.substr(0, cur_i)) + ' ' + (cur.text.substr(cur_i + 1))
+ cur.el.textContent = cur.text
+ }
+ }
+ return 0
+ }
+ // return true if cur was removed from the dom (ie re-use same prev)
+ operate = function() {
+ // cur definitately set
+ // prev and/or next might be null, indicating the start/end of a display:block
+ var bounds, dbg, fixer, fixers, i, need_undo, new_next_px, new_prev_px, removed, undo_arg
+ if (!is_space_code(cur.text.charCodeAt(cur_i))) {
+ return false
+ }
+ fixers = [remove, replace_with_space]
+ // check for common case: single whitespace surrounded by non-whitespace chars
+ if ((prev != null) && (next != null)) {
+ if (!((is_space_code(prev.text.charCodeAt(prev_i))) || (is_space_code(next.text.charCodeAt(next_i))))) {
+ dbg = cur.text.charCodeAt(cur_i)
+ if (cur.text.charAt(cur_i) === ' ') {
+ return false
+ } else {
+ fixers = [replace_with_space]
+ }
+ }
+ }
+ bounds = text_range_bounds(cur.el, cur_i, cur_i + 1)
+ // consistent cases:
+ // 1. zero rects returned by getClientRects() means collapsed space
+ if (bounds === null) {
+ return remove()
+ }
+ // 2. width greater than zero means visible space
+ if (bounds.w > 0) {
+ // has bounds, don't try removing
+ fixers = [replace_with_space]
+ }
+ // now the weird edge cases...
+ //
+ // firefox and chromium both report zero width for characters at the end
+ // of a line where the text wraps (automatically, due to word-wrap) to
+ // the next line. These do not appear to be distinguishable from
+ // collapsed spaces via the range/bounds api, so...
+ //
+ // remove it from the dom, and if prev or next moves, put it back.
+ //
+ // this block (try changing it, put it back if something moves) is also
+ // used on collapsable whitespace characters besides space. In this case
+ // the character is replaced with a normal space character instead of
+ // removed
+ if ((prev != null) && (prev_px == null)) {
+ prev_px = new_cursor_position({n: prev, i: prev_i})
+ }
+ if ((next != null) && (next_px == null)) {
+ next_px = new_cursor_position({n: next, i: next_i})
+ }
+ //if prev is null and next is null
+ // parent_px = cur.parent.el.getBoundingClientRect()
+ undo_arg = true // just for readabality
+ removed = 0
+ for (i = 0; i < fixers.length; i++) {
+ fixer = fixers[i]
+ if (removed > 0) {
+ break
+ }
+ removed += fixer()
+ need_undo = false
+ if (prev != null) {
+ if (prev_px != null) {
+ new_prev_px = new_cursor_position({n: prev, i: prev_i})
+ if (new_prev_px != null) {
+ if (new_prev_px.x !== prev_px.x || new_prev_px.y !== prev_px.y) {
+ need_undo = true
+ }
+ } else {
+ need_undo = true
+ }
+ } else {
+ console.log("this shouldn't happen, we remove spaces that don't locate")
+ }
+ }
+ if ((next != null) && !need_undo) {
+ if (next_px != null) {
+ new_next_px = new_cursor_position({n: next, i: next_i})
+ if (new_next_px != null) {
+ if (new_next_px.x !== next_px.x || new_next_px.y !== next_px.y) {
+ need_undo = true
+ }
+ } else {
+ need_undo = true
+ }
+ }
+ //else
+ // console.log "removing space becase space after it is collapsed"
+ }
+ if (need_undo) {
+ removed += fixer(undo_arg)
+ }
+ }
+ if (removed > 0) {
+ return true
+ } else {
+ return false
+ }
+ }
+ // pass null at start/end of display:block
+ queue = function(n, i) {
+ var advance, removed
+ next = n
+ next_i = i
+ next_px = null
+ advance = true
+ if (cur != null) {
+ removed = operate()
+ // don't advance (to the next character next time) if we removed a
+ // character from the same text node as ``next``, because doing so
+ // renumbers the indexes in that string
+ if (removed && cur === next) {
+ advance = false
+ }
+ } else {
+ removed = false
+ }
+ if (!removed) {
+ prev = cur
+ prev_i = cur_i
+ prev_px = cur_px
+ }
+ cur = next
+ cur_i = next_i
+ cur_px = next_px
+ return advance
+ }
+ queue(null)
+ iterate(tree, queue)
+ queue(null)
+
+ tree_remove_empty_text_nodes(tree)
+}
+// call this after you insert or remove inline nodes. It will:
+// merge consecutive text nodes
+// remove empty text nodes
+// adjust white-space property
+// note: this assumes that all whitespace in text nodes should be displayed
+// (ie not collapse or be trimmed) and will change the white-space property
+// as needed to achieve this.
+PeachHTML5Editor.prototype.text_cleanup = function(n) {
+ var block, eats_start_sp, i, last, n_i, need_preserve, prev, prev_i, run, ws
+ if (this.is_display_block(n)) {
+ block = n
+ } else {
+ block = this.find_block_parent(n)
+ if (block == null) {
+ return
+ }
+ }
+ run = this.get_text_run(block)
+ if (run == null) {
+ return
+ }
+ if (run.length > 1) {
+ i = 1
+ prev = run[0]
+ while (i < run.length) {
+ n = run[i]
+ if (prev.type === 'text' && n.type === 'text') {
+ if (prev.parent === n.parent) {
+ prev_i = n.parent.children.indexOf(prev)
+ n_i = n.parent.children.indexOf(n)
+ if (n_i === prev_i + 1) {
+ prev.text = prev.text + n.text
+ prev.el.textContent = prev.text
+ this.remove_node(n)
+ run.splice(i, 1)
+ continue // don't increment i or change prev
+ }
+ }
+ }
+ i += 1
+ prev = n
+ }
+ }
+ // remove empty text nodes
+ i = 0
+ while (i < run.length) {
+ n = run[i]
+ if (n.type === 'text') {
+ if (n.text === '') {
+ this.remove_node(n)
+ // FIXME maybe remove parents recursively if this makes them empty
+ run.splice(i, 1)
+ continue // don't increment i
+ }
+ }
+ i += 1
+ }
+ // note: inline tags can have white-space:pre-line/etc
+ // note: inline-blocks have their whitespace collapsed independantly of outer run
+ // note: inline-blocks are treated like non-whitespace char even if empty
+ if (block.el.style.whiteSpace != null) {
+ ws = block.el.style.whiteSpace
+ if (ws_props[ws]) {
+ if (ws_props[ws].space) {
+ if (ws_props[ws].to_collapse === 'normal') {
+ block.el.style.whiteSpace = null
+ } else {
+ block.el.style.whiteSpace = ws_props[ws].to_collapse
+ }
+ this.update_style_from_el(block)
+ }
+ }
+ }
+ // note: space after <br> colapses, but not space before
+ // check for spaces that would collapse without help
+ eats_start_sp = true // if the next node starts with space it collapses (unless pre)
+ prev = null
+ for (i = 0; i < run.length; ++i) {
+ n = run[i]
+ if (n.type === 'tag') {
+ if (n.name === 'br') {
+ eats_start_sp = true
+ } else {
+ eats_start_sp = false
+ }
+ } else {
+ need_preserve = false
+ if (n.type !== 'text') {
+ console.log("bug #232308")
+ return
+ }
+ if (eats_start_sp) {
+ if (is_space_code(n.text.charCodeAt(0))) {
+ need_preserve = true
+ }
+ }
+ if (!need_preserve) {
+ need_preserve = multi_sp_regex.test(n.text)
+ }
+ if (need_preserve) {
+ // do we have it already?
+ ws = this.computed_style(n, 'white-space') // FIXME implement this
+ if (ws_props[ws] == null ? true : ws_props[ws].space == null) {
+ // 2nd arg is ideal target for css rule
+ ws = this.preserve_space(n, block)
+ }
+ eats_start_sp = false
+ } else {
+ if (is_space_code(n.text.charCodeAt(n.text.length - 1))) {
+ ws = this.computed_style(n, 'white-space') // FIXME implement this
+ if ((ref1 = ws_props[ws]) != null ? ref1.space : void 0) {
+ eats_start_sp = false
+ } else {
+ eats_start_sp = true
+ }
+ } else {
+ eats_start_sp = false
+ }
+ }
+ }
+ }
+ // check if text ends with a collapsable space
+ if (run.length > 0) {
+ last = run[run.length - 1]
+ if (last.type === 'text') {
+ if (eats_start_sp) {
+ this.preserve_space(last, block)
+ }
+ }
+ }
+}
+PeachHTML5Editor.prototype.css_clear = function(n, prop) {
+ var css_delimiter_regex, i, styles
+ if (n.attrs.style == null) {
+ return
+ }
+ if (n.attrs.style === '') {
+ return
+ }
+ css_delimiter_regex = new RegExp('\s*;\s*', 'g') // FIXME make this global
+ styles = n.attrs.style.trim().split(css_delimiter)
+ if (!(styles.length > 0)) {
+ return
+ }
+ if (styles[styles.length - 1] === '') {
+ styles.pop()
+ if (!(styles.length > 0)) {
+ return
+ }
+ }
+ i = 0
+ while (i < styles.length) {
+ if (styles[i].substr(0, 12) === 'white-space:') {
+ styles.splice(i, 1)
+ } else {
+ i += 1
+ }
+ }
+}
+// WARNING: after calling this one or more times, you MUST:
+// if it's inline: call @text_cleanup
+// call @changed()
+PeachHTML5Editor.prototype.remove_node = function(n) {
+ var i
+ i = n.parent.children.indexOf(n)
+ if (i === -1) {
+ throw "BUG #9187112313"
+ }
+ n.el.parentNode.removeChild(n.el)
+ n.parent.children.splice(i, 1)
+}
+// remove a node from the tree/dom, insert into new_parent before insert_before?end
+// WARNING: after calling this one or more times, you MUST:
+// if it's inline: call @text_cleanup
+// call @changed()
+PeachHTML5Editor.prototype.move_node = function(n, new_parent, insert_before) {
+ var before_i, i
+ if (insert_before == null) {
+ insert_before = null
+ }
+ i = n.parent.children.indexOf(n)
+ if (i === -1) {
+ throw "Error: tried to remove node, but it's not in it's parents list of children"
+ return
+ }
+ if (insert_before != null) {
+ before_i = new_parent.children.indexOf(insert_before)
+ if (i === -1) {
+ throw "Error: tried to move a node to be before a non-existent node"
+ }
+ insert_before = insert_before.el
+ }
+ this.remove_node(n)
+ if (insert_before != null) {
+ new_parent.el.insertBefore(n.el, insert_before)
+ new_parent.children.splice(before_i, 0, n)
+ } else {
+ new_parent.el.appendChild(n.el, insert_before)
+ new_parent.children.push(n)
+ }
+ n.parent = new_parent
+}
+// remove it, forget where it was
+PeachHTML5Editor.prototype.kill_cursor = function() {
+ if (this.cursor_visible) {
+ this.cursor_el.parentNode.removeChild(this.cursor_el)
+ this.cursor_visible = false
+ }
+ this.cursor = null
+ this.annotate(null)
+}
+PeachHTML5Editor.prototype.move_cursor = function(cursor) {
+ var height
+ this.cursor_ideal_x = cursor.x
+ this.cursor = cursor
+ if (!this.cursor_visible) {
+ this.cursor_el = domify(this.outer_idoc, {div: { id: 'cursor'}})
+ this.overlay.appendChild(this.cursor_el)
+ this.cursor_visible = true
+ }
+ this.cursor_el.style.left = (cursor.x + overlay_padding - 1) + "px"
+ if (cursor.h < 5) {
+ height = 12
+ } else {
+ height = cursor.h
+ }
+ this.cursor_el.style.top = (cursor.y + overlay_padding + Math.round(height * .07)) + "px"
+ this.cursor_el.style.height = (Math.round(height * 0.82)) + "px"
+ this.annotate(cursor.n)
+ this.scroll_into_view(cursor.y, height)
+}
+PeachHTML5Editor.prototype.scroll_into_view = function(y, h) {
+ var downmost, upmost
+ if (h == null) {
+ h = 0
+ }
+ y += overlay_padding // convert units from @idoc to @wrap2
+ // very top of document
+ if (y <= breathing_room) {
+ this.wrap2.scrollTop = 0
+ return
+ }
+ // very bottom of document
+ if (y + h >= this.wrap2.scrollHeight - breathing_room) {
+ this.wrap2.scrollTop = this.wrap2.scrollHeight - this.wrap2_height
+ return
+ }
+ // The most scrolled up (lowest value for scrollTop) that would be OK
+ upmost = y + h + breathing_room - this.wrap2_height
+ upmost = Math.max(upmost, 0)
+ // the most scrolled down (highest value for scrollTop) that would be OK
+ downmost = y - breathing_room
+ downmost = Math.min(downmost, this.wrap2.scrollHeight - this.wrap2_height)
+ if (upmost > downmost) { // means h is too big to fit
+ // scroll so top is visible
+ this.wrap2.scrollTop = downmost
+ return
+ }
+ if (this.wrap2.scrollTop < upmost) {
+ this.wrap2.scrollTop = upmost
+ return
+ }
+ if (this.wrap2.scrollTop > downmost) {
+ this.wrap2.scrollTop = downmost
+ return
+ }
+}
+PeachHTML5Editor.prototype.annotate = function(n) {
+ var alpha, ann_box, ann_tag, bounds, prev_bounds
+ while (this.matting.length > 0) {
+ this.overlay.removeChild(this.matting[0])
+ this.matting.shift()
+ }
+ if (n == null) {
+ return
+ }
+ prev_bounds = {x: 0, y: 0, w: 0, h: 0}
+ alpha = 0.1
+ while (((n != null ? n.el : void 0) != null) && n !== this.tree_parent) {
+ if (n.type === 'text') {
+ n = n.parent
+ continue
+ }
+ bounds = get_el_bounds(n.el)
+ if (bounds == null) {
+ return
+ }
+ if (bounds.x === prev_bounds.x && bounds.y === prev_bounds.y && bounds.w === prev_bounds.w && bounds.h === prev_bounds.h) {
+ n = n.parent
+ continue
+ }
+ ann_box = domify(this.outer_idoc, {div: {"class": 'ann_box', style: "left: " + (bounds.x - 1 + overlay_padding) + "px; top: " + (bounds.y - 2 + overlay_padding) + "px; width: " + bounds.w + "px; height: " + bounds.h + "px"}}) // outline: 1000px solid rgba(0,153,255,#{alpha});
+ this.overlay.appendChild(ann_box)
+ this.matting.push(ann_box)
+ ann_tag = domify(this.outer_idoc, {div: {"class": 'ann_tag', style: "left: " + (bounds.x + 1 + overlay_padding) + "px; top: " + (bounds.y - 7 + overlay_padding) + "px",children: [domify(this.outer_idoc, {text: " " + n.name + " "})]}})
+ this.overlay.appendChild(ann_tag)
+ this.matting.push(ann_tag)
+ n = n.parent
+ alpha *= 1.5
+ }
+}
+PeachHTML5Editor.prototype.pretty_html = function(tree, indent, parent_flags) {
+ var attr_keys, cs, display, float, i, j, in_flow, in_flow_block, inner_flags, is_block, is_br, is_text, k, n, next_indent, position, prev_in_flow_is_block, prev_in_flow_is_text, ret, visibility, want_nl, whitespace
+ if (indent == null) {
+ indent = ''
+ }
+ if (parent_flags == null) {
+ parent_flags = {
+ pre_ish: false,
+ block: true,
+ want_nl: false
+ }
+ }
+ ret = ''
+ want_nl = parent_flags.want_nl
+ prev_in_flow_is_text = false
+ prev_in_flow_is_block = false
+ for (i = 0; i < tree.length; ++i) {
+ n = tree[i]
+ inner_flags = {
+ want_nl: true
+ }
+ is_br = false
+ switch (n.type) {
+ case 'tag':
+ if (n.name === 'br') {
+ is_br = true
+ }
+ is_text = false
+ if (n.el.currentStyle != null) {
+ cs = n.el.currentStyle
+ whitespace = cs['white-space']
+ display = cs['display']
+ position = cs['position']
+ float = cs['float']
+ visibility = cs['visibility']
+ } else {
+ cs = this.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 === 'textarea') {
+ inner_flags.pre_ish = true
+ } else {
+ inner_flags.pre_ish = whitespace.substr(0, 3) === 'pre'
+ }
+ switch (float) {
+ case 'left':
+ case 'right':
+ in_flow = false
+ break
+ default:
+ switch (position) {
+ case 'absolute':
+ case 'fixed':
+ in_flow = false
+ break
+ default:
+ if ('display' === 'none') {
+ in_flow = false
+ } else {
+ switch (visibility) {
+ case 'hidden':
+ case 'collapse':
+ in_flow = false
+ break
+ default:
+ in_flow = true
+ }
+ }
+ }
+ }
+ switch (display) {
+ case 'inline':
+ case 'none':
+ inner_flags.block = false
+ is_block = in_flow_block = false
+ break
+ case 'inline-black':
+ inner_flags.block = true
+ is_block = in_flow_block = false
+ break
+ default:
+ inner_flags.block = true
+ is_block = true
+ in_flow_block = in_flow
+ }
+ break
+ case 'text':
+ is_text = true
+ is_block = false
+ in_flow = true
+ in_flow_block = false
+ break
+ default: // 'comment', 'doctype'
+ is_text = false
+ is_block = false
+ in_flow = false
+ in_flow_block = false
+ }
+ // print whitespace if we can
+ if (!parent_flags.pre_ish) {
+ if (!(prev_in_flow_is_text && is_br)) {
+ if ((i === 0 && parent_flags.block) || in_flow_block || prev_in_flow_is_block) {
+ if (want_nl) {
+ ret += "\n"
+ }
+ ret += indent
+ }
+ }
+ }
+ switch (n.type) {
+ case 'tag':
+ ret += '<' + n.name
+ attr_keys = []
+ for (k in n.attrs) {
+ attr_keys.unshift(k)
+ }
+ //attr_keys.sort()
+ for (j = 0; j < attr_keys.length; ++j) {
+ k = attr_keys[j]
+ ret += " " + k
+ if (n.attrs[k].length > 0) {
+ ret += "=\"" + (enc_attr(n.attrs[k])) + "\""
+ }
+ }
+ ret += '>'
+ if (void_elements[n.name] == null) {
+ if (inner_flags.block) {
+ next_indent = indent + ' '
+ } else {
+ next_indent = indent
+ }
+ if (n.children.length) {
+ ret += this.pretty_html(n.children, next_indent, inner_flags)
+ }
+ ret += "</" + n.name + ">"
+ }
+ break
+ case 'text':
+ ret += enc_text(n.text)
+ break
+ case 'comment':
+ ret += "<!--" + n.text + "-->" // TODO encode?
+ break
+ case 'doctype':
+ ret += "<!DOCTYPE " + n.name
+ if ((n.public_identifier != null) && n.public_identifier.length > 0) {
+ ret += " \"" + n.public_identifier + "\""
+ }
+ if ((n.system_identifier != null) && n.system_identifier.length > 0) {
+ ret += " \"" + n.system_identifier + "\""
+ }
+ ret += ">"
+ }
+ want_nl = true
+ if (in_flow) {
+ prev_in_flow_is_text = is_text
+ prev_in_flow_is_block = is_block || (in_flow && is_br)
+ }
+ }
+ if (tree.length) {
+ // output final newline if allowed
+ if (!parent_flags.pre_ish) {
+ if (prev_in_flow_is_block || parent_flags.block) {
+ ret += "\n" + (indent.substr(4))
+ }
+ }
+ }
+ return ret
+}
+PeachHTML5Editor.prototype.onblur = function() {
+ this.kill_cursor()
+}
+PeachHTML5Editor.prototype.have_focus = function() {
+ this.editor_is_focused = true
+ this.poll_for_blur()
+}
+PeachHTML5Editor.prototype.poll_for_blur = function() {
+ if (this.poll_for_blur_timeout != null) {
+ return
+ }
+ this.poll_for_blur_timeout = timeout(150, (function(_this) { return function() {
+ next_frame(function() { // pause polling when browser knows we're not active/visible/etc.
+ _this.poll_for_blur_timeout = null
+ if (document.activeElement === _this.outer_iframe) {
+ _this.poll_for_blur()
+ } else {
+ _this.editor_is_focused = false
+ _this.onblur()
+ }
+ })
+ }})(this))
+}
+
+window.peach_html5_editor = function() {
+ // coffeescript: return new PeachHTML5Editor args...
+ // compiles to below... there must be a better way
+ var args
+ args = 1 <= arguments.length ? slice.call(arguments, 0) : []
+ return (function(func, args, ctor) {
+ ctor.prototype = func.prototype
+ var child = new ctor, result = func.apply(child, args)
+ return Object(result) === result ? result : child
+ })(PeachHTML5Editor, args, function(){})
+}
+
+}).call(this)
+
+// test in browser: peach_html5_editor(document.getElementsByTagName('textarea')[0])
Got questions, comments, patches, etc.? Contact Jason Woofenden