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rikaicontent.ts
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/*
Rikaikun
Copyright (C) 2010 Erek Speed
http://code.google.com/p/rikaikun/
---
Originally based on Rikaichan 1.07
by Jonathan Zarate
http://www.polarcloud.com/
---
Originally based on RikaiXUL 0.4 by Todd Rudick
http://www.rikai.com/
http://rikaixul.mozdev.org/
---
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
---
Please do not change or remove any of the copyrights or links to web pages
when modifying any of the files. - Jon
*/
const rcxContent = {
dictCount: 3,
altView: 0,
sameDict: 0,
forceKanji: 0,
defaultDict: 2,
nextDict: 3,
// Adds the listeners and stuff.
enableTab: function (config) {
if (window.rikaichan == null) {
window.rikaichan = {};
window.addEventListener('mousemove', this.onMouseMove, false);
window.addEventListener('keydown', this.onKeyDown, true);
window.addEventListener('keyup', this.onKeyUp, true);
window.addEventListener('mousedown', this.onMouseDown, false);
window.addEventListener('mouseup', this.onMouseUp, false);
}
window.rikaichan.config = config;
this.altView = config.popupLocation;
},
// Removes the listeners and stuff
disableTab: function () {
if (window.rikaichan != null) {
let e;
window.removeEventListener('mousemove', this.onMouseMove, false);
window.removeEventListener('keydown', this.onKeyDown, true);
window.removeEventListener('keyup', this.onKeyUp, true);
window.removeEventListener('mousedown', this.onMouseDown, false);
window.removeEventListener('mouseup', this.onMouseUp, false);
e = document.getElementById('rikaichan-css');
if (e) e.parentNode.removeChild(e);
e = document.getElementById('rikaichan-window');
if (e) e.parentNode.removeChild(e);
this.clearHi();
delete window.rikaichan;
}
},
getContentType: function (tDoc) {
const m = tDoc.getElementsByTagName('meta');
for (const i in m) {
if (m[i].httpEquiv == 'Content-Type') {
let con = m[i].content;
con = con.split(';');
return con[0];
}
}
return null;
},
showPopup: function (text, elem, x, y, looseWidth) {
topdoc = window.document;
if (isNaN(x) || isNaN(y)) x = y = 0;
let popup = topdoc.getElementById('rikaichan-window');
if (!popup) {
const css = topdoc.createElementNS(
'http://www.w3.org/1999/xhtml',
'link'
);
css.setAttribute('rel', 'stylesheet');
css.setAttribute('type', 'text/css');
const color = window.rikaichan.config.popupcolor;
css.setAttribute(
'href',
chrome.extension.getURL('css/popup-' + color + '.css')
);
css.setAttribute('id', 'rikaichan-css');
topdoc.getElementsByTagName('head')[0].appendChild(css);
popup = topdoc.createElementNS('http://www.w3.org/1999/xhtml', 'div');
popup.setAttribute('id', 'rikaichan-window');
popup.setAttribute('lang', 'ja');
topdoc.documentElement.appendChild(popup);
popup.addEventListener(
'dblclick',
function (ev) {
rcxContent.hidePopup();
ev.stopPropagation();
},
true
);
}
popup.style.width = 'auto';
popup.style.height = 'auto';
popup.style.maxWidth = looseWidth ? '' : '600px';
if (rcxContent.getContentType(topdoc) == 'text/plain') {
const df = document.createDocumentFragment();
df.appendChild(
document.createElementNS('http://www.w3.org/1999/xhtml', 'span')
);
df.firstChild.innerHTML = text;
while (popup.firstChild) {
popup.removeChild(popup.firstChild);
}
popup.appendChild(df.firstChild);
} else {
popup.innerHTML = text;
}
if (elem) {
popup.style.top = '-1000px';
popup.style.left = '0px';
popup.style.display = '';
bbo = window;
let pW = popup.offsetWidth;
let pH = popup.offsetHeight;
// guess!
if (pW <= 0) pW = 200;
if (pH <= 0) {
pH = 0;
let j = 0;
while ((j = text.indexOf('<br/>', j)) != -1) {
j += 5;
pH += 22;
}
pH += 25;
}
if (this.altView == 1) {
x = window.scrollX;
y = window.scrollY;
} else if (this.altView == 2) {
x = window.innerWidth - (pW + 20) + window.scrollX;
y = window.innerHeight - (pH + 20) + window.scrollY;
}
// FIXME: This probably doesn't actually work
else if (elem instanceof window.HTMLOptionElement) {
// these things are always on z-top, so go sideways
x = 0;
y = 0;
let p = elem;
while (p) {
x += p.offsetLeft;
y += p.offsetTop;
p = p.offsetParent;
}
if (elem.offsetTop > elem.parentNode.clientHeight) y -= elem.offsetTop;
if (x + popup.offsetWidth > window.innerWidth) {
// too much to the right, go left
x -= popup.offsetWidth + 5;
if (x < 0) x = 0;
} else {
// use SELECT's width
x += elem.parentNode.offsetWidth + 5;
}
} else {
// go left if necessary
if (x + pW > window.innerWidth - 20) {
x = window.innerWidth - pW - 20;
if (x < 0) x = 0;
}
// below the mouse
let v = 25;
// under the popup title
if (elem.title && elem.title != '') v += 20;
// go up if necessary
if (y + v + pH > window.innerHeight) {
const t = y - pH - 30;
if (t >= 0) {
y = t;
} else {
// if can't go up, still go down to prevent blocking cursor
y += v;
}
} else y += v;
x += window.scrollX;
y += window.scrollY;
}
} else {
x += window.scrollX;
y += window.scrollY;
}
popup.style.left = x + 'px';
popup.style.top = y + 'px';
popup.style.display = '';
},
hidePopup: function () {
const popup = document.getElementById('rikaichan-window');
if (popup) {
popup.style.display = 'none';
popup.innerHTML = '';
}
this.title = null;
},
isVisible: function () {
const popup = document.getElementById('rikaichan-window');
return popup && popup.style.display != 'none';
},
clearHi: function () {
const tdata = window.rikaichan;
if (!tdata || !tdata.prevSelView) return;
if (tdata.prevSelView.closed) {
tdata.prevSelView = null;
return;
}
const sel = tdata.prevSelView.getSelection();
// If there is an empty selection or the selection was done by
// rikaikun then we'll clear it
if (!sel.toString() || tdata.selText == sel.toString()) {
// In the case of no selection we clear the oldTA
// The reason for this is becasue if there's no selection
// we probably clicked somewhere else and we don't want to
// bounce back.
if (!sel.toString()) tdata.oldTA = null;
// clear all selections
sel.removeAllRanges();
// Text area stuff
// If oldTA is still around that means we had a highlighted region
// which we just cleared and now we're going to jump back to where we were
// the cursor was before our lookup
// if oldCaret is less than 0 it means we clicked outside the box and shouldn't
// come back
if (tdata.oldTA && tdata.oldCaret >= 0) {
tdata.oldTA.selectionStart = tdata.oldTA.selectionEnd = tdata.oldCaret;
}
}
tdata.prevSelView = null;
tdata.kanjiChar = null;
tdata.selText = null;
},
// Array used for storing the last popup content shown, useful for easily
// operating on the value after rendering (for copying for example).
lastFound: null,
configPage: function () {
window.openDialog(
'chrome://rikaichan/content/prefs.xul',
'',
'chrome,centerscreen'
);
},
keysDown: [],
lastPos: { x: null, y: null },
lastTarget: null,
onKeyDown: function (ev) {
rcxContent._onKeyDown(ev);
},
_onKeyDown: function (ev) {
if (
window.rikaichan.config.showOnKey !== '' &&
(ev.altKey || ev.ctrlKey || ev.key == 'AltGraph')
) {
if (this.lastTarget !== null) {
const myEv = {
clientX: this.lastPos.x,
clientY: this.lastPos.y,
target: this.lastTarget,
altKey: ev.altKey || ev.key == 'AltGraph',
ctrlKey: ev.ctrlKey,
shiftKey: ev.shiftKey,
noDelay: true,
};
this.tryUpdatePopup(myEv);
}
return;
}
if (ev.shiftKey && ev.keyCode != 16) return;
if (this.keysDown[ev.keyCode]) return;
if (!this.isVisible()) return;
if (window.rikaichan.config.disablekeys && ev.keyCode != 16) return;
let i;
let shouldPreventDefault = true;
const maxDictEntries = window.rikaichan.config.maxDictEntries;
switch (ev.keyCode) {
case 16: // shift
case 13: // enter
this.show(ev.currentTarget.rikaichan, this.nextDict);
break;
case 74: // j
// reverse cycle through definitions if > max (maxDictEntries)
e = this.lastFound[0];
if (e.data.length < maxDictEntries) break;
if (!e.index) {
e.index = 0;
}
if (e.index > 0) {
e.index -= 1;
} else {
e.index = e.data.length - maxDictEntries;
}
chrome.extension.sendMessage(
{ type: 'makehtml', entry: e },
rcxContent.processHtml
);
this.lastFound = [e];
break;
case 75: // k
// forward cycle through definitions if > max (maxDictEntries)
e = this.lastFound[0];
if (e.data.length < maxDictEntries) {
break;
}
if (!e.index) {
e.index = 0;
}
if (e.index >= e.data.length - maxDictEntries) {
e.index = 0;
} else {
e.index += 1;
}
chrome.extension.sendMessage(
{ type: 'makehtml', entry: e },
rcxContent.processHtml
);
this.lastFound = [e];
break;
case 27: // esc
this.hidePopup();
this.clearHi();
break;
case 65: // a
this.altView = (this.altView + 1) % 3;
this.show(ev.currentTarget.rikaichan, this.sameDict);
break;
case 67: // c
// CTRL on Windows and CMD (metaKey) on Mac are used for OS copy and
// thus should prevent the definition copy.
// `metaKey` is the '⊞ Windows' key on Windows but that probably won't
// matter.
if (ev.ctrlKey || ev.metaKey) {
shouldPreventDefault = false;
} else {
chrome.extension.sendMessage({
type: 'copyToClip',
entry: rcxContent.lastFound,
});
}
break;
case 66: // b
let ofs = ev.currentTarget.rikaichan.uofs;
for (i = 50; i > 0; --i) {
ev.currentTarget.rikaichan.uofs = --ofs;
if (this.show(ev.currentTarget.rikaichan, this.defaultDict) >= 0) {
// TODO: Figure out if this should be changed as per ancient comment.
if (ofs >= ev.currentTarget.rikaichan.uofs) break; // ! change later
}
}
break;
case 68: // d
chrome.extension.sendMessage({ type: 'switchOnlyReading' });
this.show(ev.currentTarget.rikaichan, this.sameDict);
break;
case 77: // m
ev.currentTarget.rikaichan.uofsNext = 1;
case 78: // n
for (i = 50; i > 0; --i) {
ev.currentTarget.rikaichan.uofs +=
ev.currentTarget.rikaichan.uofsNext;
if (this.show(ev.currentTarget.rikaichan, this.defaultDict) >= 0)
break;
}
break;
case 89: // y
this.altView = 0;
ev.currentTarget.rikaichan.popY += 20;
this.show(ev.currentTarget.rikaichan, this.sameDict);
break;
default:
return;
}
this.keysDown[ev.keyCode] = 1;
// don't eat shift if in this mode
if (shouldPreventDefault) {
ev.preventDefault();
}
},
mDown: false,
onMouseDown: function (ev) {
rcxContent._onMouseDown(ev);
},
_onMouseDown: function (ev) {
if (ev.button != 0) return;
if (this.isVisible()) this.clearHi();
mDown = true;
// If we click outside of a text box then we set
// oldCaret to -1 as an indicator not to restore position
// Otherwise, we switch our saved textarea to whereever
// we just clicked
if (!('form' in ev.target)) window.rikaichan.oldCaret = -1;
else window.rikaichan.oldTA = ev.target;
},
onMouseUp: function (ev) {
rcxContent._onMouseUp(ev);
},
_onMouseUp: function (ev) {
if (ev.button != 0) return;
mDown = false;
},
onKeyUp: function (ev) {
if (rcxContent.keysDown[ev.keyCode]) rcxContent.keysDown[ev.keyCode] = 0;
},
unicodeInfo: function (c) {
hex = '0123456789ABCDEF';
u = c.charCodeAt(0);
return (
c +
' U' +
hex[(u >>> 12) & 15] +
hex[(u >>> 8) & 15] +
hex[(u >>> 4) & 15] +
hex[u & 15]
);
},
kanjiN: 1,
namesN: 2,
inlineNames: {
// text node
'#text': true,
// font style
FONT: true,
TT: true,
I: true,
B: true,
BIG: true,
SMALL: true,
// deprecated
STRIKE: true,
S: true,
U: true,
// phrase
EM: true,
STRONG: true,
DFN: true,
CODE: true,
SAMP: true,
KBD: true,
let: true,
CITE: true,
ABBR: true,
ACRONYM: true,
// special, not included IMG, OBJECT, BR, SCRIPT, MAP, BDO
A: true,
Q: true,
SUB: true,
SUP: true,
SPAN: true,
WBR: true,
// ruby
RUBY: true,
RBC: true,
RTC: true,
RB: true,
RT: true,
RP: true,
},
isInline: function (node) {
return (
this.inlineNames.hasOwnProperty(node.nodeName) ||
// only check styles for elements
// comments do not have getComputedStyle method
(document.nodeType == Node.ELEMENT_NODE &&
(document.defaultView
.getComputedStyle(node, null)
.getPropertyValue('display') == 'inline' ||
document.defaultView
.getComputedStyle(node, null)
.getPropertyValue('display') == 'inline-block'))
);
},
// XPath expression which evaluates to text nodes
// tells rikaichan which text to translate
// expression to get all text nodes that are not in (RP or RT) elements
textNodeExpr:
'descendant-or-self::text()[not(parent::rp) and not(ancestor::rt)]',
// XPath expression which evaluates to a boolean. If it evaluates to true
// then rikaichan will not start looking for text in this text node
// ignore text in RT elements
startElementExpr: 'boolean(parent::rp or ancestor::rt)',
// Gets text from a node
// returns a string
// node: a node
// selEnd: the selection end object will be changed as a side effect
// maxLength: the maximum length of returned string
// xpathExpr: an XPath expression, which evaluates to text nodes, will be evaluated
// relative to "node" argument
getInlineText: function (node, selEndList, maxLength, xpathExpr) {
let text = '';
let endIndex;
if (node.nodeName == '#text') {
endIndex = Math.min(maxLength, node.data.length);
selEndList.push({ node: node, offset: endIndex });
return node.data.substring(0, endIndex);
}
const result = xpathExpr.evaluate(
node,
XPathResult.ORDERED_NODE_ITERATOR_TYPE,
null
);
while (text.length < maxLength && (node = result.iterateNext())) {
endIndex = Math.min(node.data.length, maxLength - text.length);
text += node.data.substring(0, endIndex);
selEndList.push({ node: node, offset: endIndex });
}
return text;
},
// given a node which must not be null,
// returns either the next sibling or next sibling of the father or
// next sibling of the fathers father and so on or null
getNext: function (node) {
let nextNode;
if ((nextNode = node.nextSibling) != null) return nextNode;
if ((nextNode = node.parentNode) != null && this.isInline(nextNode))
return this.getNext(nextNode);
return null;
},
getTextFromRange: function (rangeParent, offset, selEndList, maxLength) {
if (rangeParent.nodeName == 'TEXTAREA' || rangeParent.nodeName == 'INPUT') {
const endIndex = Math.min(rangeParent.data.length, offset + maxLength);
return rangeParent.value.substring(offset, endIndex);
}
let text = '';
const xpathExpr = rangeParent.ownerDocument.createExpression(
this.textNodeExpr,
null
);
if (
rangeParent.ownerDocument.evaluate(
this.startElementExpr,
rangeParent,
null,
XPathResult.BOOLEAN_TYPE,
null
).booleanValue
)
return '';
if (rangeParent.nodeType != Node.TEXT_NODE) return '';
const endIndex = Math.min(rangeParent.data.length, offset + maxLength);
text += rangeParent.data.substring(offset, endIndex);
selEndList.push({ node: rangeParent, offset: endIndex });
let nextNode = rangeParent;
while (
(nextNode = this.getNext(nextNode)) != null &&
this.isInline(nextNode) &&
text.length < maxLength
)
text += this.getInlineText(
nextNode,
selEndList,
maxLength - text.length,
xpathExpr
);
return text;
},
// Hack because SelEnd can't be sent in messages
lastSelEnd: [],
// Hack because ro was coming out always 0 for some reason.
lastRo: 0,
show: function (tdata, dictOption) {
const rp = tdata.prevRangeNode;
let ro = tdata.prevRangeOfs + tdata.uofs;
let u;
tdata.uofsNext = 1;
if (!rp) {
this.clearHi();
this.hidePopup();
return 0;
}
if (ro < 0 || ro >= rp.data.length) {
this.clearHi();
this.hidePopup();
return 0;
}
// if we have ' XYZ', where whitespace is compressed, X never seems to get selected
while ((u = rp.data.charCodeAt(ro)) == 32 || u == 9 || u == 10) {
++ro;
if (ro >= rp.data.length) {
this.clearHi();
this.hidePopup();
return 0;
}
}
//
if (
isNaN(u) ||
(u != 0x25cb &&
(u < 0x3001 || u > 0x30ff) &&
(u < 0x3400 || u > 0x9fff) &&
(u < 0xf900 || u > 0xfaff) &&
(u < 0xff10 || u > 0xff9d))
) {
this.clearHi();
this.hidePopup();
return -2;
}
// selection end data
const selEndList = [];
const text = this.getTextFromRange(rp, ro, selEndList, 13 /* maxlength*/);
lastSelEnd = selEndList;
lastRo = ro;
chrome.extension.sendMessage(
{ type: 'xsearch', text: text, dictOption: String(dictOption) },
rcxContent.processEntry
);
return 1;
},
processEntry: function (e) {
tdata = window.rikaichan;
ro = lastRo;
selEndList = lastSelEnd;
if (!e) {
rcxContent.hidePopup();
rcxContent.clearHi();
return -1;
}
rcxContent.lastFound = [e];
if (!e.matchLen) e.matchLen = 1;
tdata.uofsNext = e.matchLen;
tdata.uofs = ro - tdata.prevRangeOfs;
rp = tdata.prevRangeNode;
// don't try to highlight form elements
if (
rp &&
((tdata.config.highlight &&
!this.mDown &&
!('form' in tdata.prevTarget)) ||
('form' in tdata.prevTarget && tdata.config.textboxhl))
) {
const doc = rp.ownerDocument;
if (!doc) {
rcxContent.clearHi();
rcxContent.hidePopup();
return 0;
}
rcxContent.highlightMatch(doc, rp, ro, e.matchLen, selEndList, tdata);
tdata.prevSelView = doc.defaultView;
}
chrome.extension.sendMessage(
{ type: 'makehtml', entry: e },
rcxContent.processHtml
);
},
processHtml: function (html) {
tdata = window.rikaichan;
rcxContent.showPopup(html, tdata.prevTarget, tdata.popX, tdata.popY, false);
return 1;
},
highlightMatch: function (doc, rp, ro, matchLen, selEndList, tdata) {
const sel = doc.defaultView.getSelection();
// If selEndList is empty then we're dealing with a textarea/input situation
if (selEndList.length === 0) {
try {
if (rp.nodeName == 'TEXTAREA' || rp.nodeName == 'INPUT') {
// If there is already a selected region not caused by
// rikaikun, leave it alone
if (sel.toString() && tdata.selText != sel.toString()) return;
// If there is no selected region and the saved
// textbox is the same as teh current one
// then save the current cursor position
// The second half of the condition let's us place the
// cursor in another text box without having it jump back
if (!sel.toString() && tdata.oldTA == rp) {
tdata.oldCaret = rp.selectionStart;
tdata.oldTA = rp;
}
rp.selectionStart = ro;
rp.selectionEnd = matchLen + ro;
tdata.selText = rp.value.substring(ro, matchLen + ro);
}
} catch (err) {
// If there is an error it is probably caused by the input type
// being not text. This is the most general way to deal with
// arbitrary types.
// we set oldTA to null because we don't want to do weird stuf
// with buttons
tdata.oldTA = null;
// console.log("invalid input type for selection:" + rp.type);
console.log(err.message);
}
return;
}
// Special case for leaving a text box to an outside japanese
// Even if we're not currently in a text area we should save
// the last one we were in.
if (tdata.oldTA && !sel.toString() && tdata.oldCaret >= 0)
tdata.oldCaret = tdata.oldTA.selectionStart;
let selEnd;
let offset = matchLen + ro;
for (let i = 0, len = selEndList.length; i < len; i++) {
selEnd = selEndList[i];
if (offset <= selEnd.offset) break;
offset -= selEnd.offset;
}
const range = doc.createRange();
range.setStart(rp, ro);
range.setEnd(selEnd.node, offset);
if (sel.toString() && tdata.selText != sel.toString()) return;
sel.removeAllRanges();
sel.addRange(range);
tdata.selText = sel.toString();
if (window.rikaichan.config.ttsEnabled) {
const text = sel.toString();
if (text.length > 0) {
chrome.extension.sendMessage({ type: 'playTTS', text: text });
}
}
},
showTitle: function (tdata) {
chrome.extension.sendMessage(
{ type: 'translate', title: tdata.title },
rcxContent.processTitle
);
},
processTitle: function (e) {
tdata = window.rikaichan;
if (!e) {
rcxContent.hidePopup();
return;
}
e.title = tdata.title
.substr(0, e.textLen)
.replace(/[\x00-\xff]/g, function (c) {
return '&#' + c.charCodeAt(0) + ';';
});
if (tdata.title.length > e.textLen) e.title += '...';
this.lastFound = [e];
chrome.extension.sendMessage(
{ type: 'makehtml', entry: e },
rcxContent.processHtml
);
},
getFirstTextChild: function (node) {
return document
.evaluate(
'descendant::text()[not(parent::rp) and not(ancestor::rt)]',
node,
null,
XPathResult.ANY_TYPE,
null
)
.iterateNext();
//
},
makeFake: function (real) {
const fake = document.createElement('div');
const realRect = real.getBoundingClientRect();
fake.innerText = real.value;
fake.style.cssText = document.defaultView.getComputedStyle(
real,
''
).cssText;
fake.scrollTop = real.scrollTop;
fake.scrollLeft = real.scrollLeft;
fake.style.position = 'absolute';
fake.style.zIndex = 7777;
fake.style.top = realRect.top + 'px';
fake.style.left = realRect.left + 'px';
return fake;
},
getTotalOffset: function (parent, tNode, offset) {
let fChild = parent.firstChild;
let realO = offset;
if (fChild == tNode) return offset;
do {
let val = 0;
if (fChild.nodeName == 'BR') {
val = 1;
} else {
val = fChild.data ? fChild.data.length : 0;
}
realO += val;
} while ((fChild = fChild.nextSibling) != tNode);
return realO;
},
onMouseMove: function (ev) {
rcxContent.lastPos.x = ev.clientX;
rcxContent.lastPos.y = ev.clientY;
rcxContent.lastTarget = ev.target;
rcxContent.tryUpdatePopup(ev);
},
tryUpdatePopup: function (ev) {
const altGraph = ev.getModifierState && ev.getModifierState('AltGraph');
if (
(window.rikaichan.config.showOnKey.includes('Alt') &&
!ev.altKey &&
!altGraph) ||
(window.rikaichan.config.showOnKey.includes('Ctrl') && !ev.ctrlKey)
) {
this.clearHi();
this.hidePopup();
return;
}
let fake;
const tdata = window.rikaichan; // per-tab data
let range;
let rp;
let ro;
// Put this in a try catch so that an exception here doesn't prevent editing due to div.
try {
if (ev.target.nodeName == 'TEXTAREA' || ev.target.nodeName == 'INPUT') {
fake = rcxContent.makeFake(ev.target);
document.body.appendChild(fake);
fake.scrollTop = ev.target.scrollTop;
fake.scrollLeft = ev.target.scrollLeft;
}
// Calculate range and friends here after we've made our fake textarea/input divs.
range = document.caretRangeFromPoint(ev.clientX, ev.clientY);
rp = range.startContainer;
ro = range.startOffset;
if (fake) {
// At the end of a line, don't do anything or you just get beginning of next line
if (rp.data && rp.data.length == ro) {
document.body.removeChild(fake);
return;
}
fake.style.display = 'none';
ro = this.getTotalOffset(rp.parentNode, rp, ro);
}
// This is to account for bugs in caretRangeFromPoint
// It includes the fact that it returns text nodes over non text nodes
// and also the fact that it miss the first character of inline nodes.
// If the range offset is equal to the node data length
// Then we have the second case and need to correct.
if (rp.data && ro == rp.data.length) {
// A special exception is the WBR tag which is inline but doesn't
// contain text.
if (rp.nextSibling && rp.nextSibling.nodeName == 'WBR') {
rp = rp.nextSibling.nextSibling;
ro = 0;
}
// If we're to the right of an inline character we can use the target.
// However, if we're just in a blank spot don't do anything.
else if (rcxContent.isInline(ev.target)) {
if (rp.parentNode == ev.target);
else if (fake && rp.parentNode.innerText == ev.target.value);
else {
rp = ev.target.firstChild;
ro = 0;
}
}
// Otherwise we're on the right and can take the next sibling of the
// inline element.
else {
rp = rp.parentNode.nextSibling;
ro = 0;
}
}
// The case where the before div is empty so the false spot is in the parent
// But we should be able to take the target.
// The 1 seems random but it actually represents the preceding empty tag
// also we don't want it to mess up with our fake div
// Also, form elements don't seem to fall into this case either.
if (
!fake &&
!('form' in ev.target) &&
rp &&
rp.parentNode != ev.target &&
ro == 1
) {
rp = rcxContent.getFirstTextChild(ev.target);
ro = 0;
}