mirror of
https://github.com/ether/etherpad-lite.git
synced 2025-05-05 22:57:11 -04:00
sendkeys: Merge in latest upstream commit that mostly works
5c034c108c
seems to be the newest upstream commit that still works. After that,
`{selectall}` doesn't seem to work. Starting with v3.0, sendkeys sends
input events instead of keypress events, which `ace2_inner.js` doesn't
listen for.
This commit is contained in:
parent
0900354980
commit
ed991419b8
2 changed files with 215 additions and 57 deletions
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@ -1,7 +1,7 @@
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// Cross-broswer implementation of text ranges and selections
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// documentation: http://bililite.com/blog/2011/01/17/cross-browser-text-ranges-and-selections/
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// Version: 1.5
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// Copyright (c) 2010 Daniel Wachsstock
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// Version: 2.0
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// Copyright (c) 2013 Daniel Wachsstock
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// MIT license:
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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@ -49,11 +49,22 @@ bililiteRange = function(el, debug){
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ret._win = 'defaultView' in ret._doc ? ret._doc.defaultView : ret._doc.parentWindow;
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ret._textProp = textProp(el);
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ret._bounds = [0, ret.length()];
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if (!('oninput' in el)){
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// give IE8 a chance
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var inputhack = function() {ret.dispatch({type: 'input'}) };
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ret.listen('keyup', inputhack);
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ret.listen('cut', inputhack);
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ret.listen('paste', inputhack);
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ret.listen('drop', inputhack);
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el.oninput = 'patched';
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}
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return ret;
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}
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function textProp(el){
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// returns the property that contains the text of the element
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// note that for <body> elements the text attribute represents the obsolete text color, not the textContent.
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// we document that these routines do not work for <body> elements so that should not be relevant
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if (typeof el.value != 'undefined') return 'value';
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if (typeof el.text != 'undefined') return 'text';
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if (typeof el.textContent != 'undefined') return 'textContent';
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@ -90,21 +101,24 @@ Range.prototype = {
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},
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select: function(){
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this._nativeSelect(this._nativeRange(this.bounds()));
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this.dispatch({type: 'select'});
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return this; // allow for chaining
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},
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text: function(text, select){
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if (arguments.length){
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this._nativeSetText(text, this._nativeRange(this.bounds()));
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try { // signal the text change (IE < 9 doesn't support this, so we live with it)
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this._el.dispatchEvent(new CustomEvent('input', {detail: {text: text, bounds: this.bounds()}}));
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}catch(e){ /* ignore */ }
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var bounds = this.bounds(), el = this._el;
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// signal the input per DOM 3 input events, http://www.w3.org/TR/DOM-Level-3-Events/#h4_events-inputevents
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// we add another field, bounds, which are the bounds of the original text before being changed.
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this.dispatch({type: 'beforeinput', data: text, bounds: bounds});
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this._nativeSetText(text, this._nativeRange(bounds));
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if (select == 'start'){
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this.bounds ([this._bounds[0], this._bounds[0]]);
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this.bounds ([bounds[0], bounds[0]]);
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}else if (select == 'end'){
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this.bounds ([this._bounds[0]+text.length, this._bounds[0]+text.length]);
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this.bounds ([bounds[0]+text.length, bounds[0]+text.length]);
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}else if (select == 'all'){
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this.bounds ([this._bounds[0], this._bounds[0]+text.length]);
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this.bounds ([bounds[0], bounds[0]+text.length]);
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}
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this.dispatch({type: 'input', data: text, bounds: bounds});
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return this; // allow for chaining
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}else{
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return this._nativeGetText(this._nativeRange(this.bounds()));
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@ -118,6 +132,88 @@ Range.prototype = {
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scrollIntoView: function(){
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this._nativeScrollIntoView(this._nativeRange(this.bounds()));
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return this;
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},
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wrap: function (n){
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this._nativeWrap(n, this._nativeRange(this.bounds()));
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return this;
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},
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selection: function(text){
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if (arguments.length){
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return this.bounds('selection').text(text, 'end').select();
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}else{
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return this.bounds('selection').text();
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}
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},
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clone: function(){
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return bililiteRange(this._el).bounds(this.bounds());
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},
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all: function(text){
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if (arguments.length){
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this.dispatch ({type: 'beforeinput', data: text});
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this._el[this._textProp] = text;
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this.dispatch ({type: 'input', data: text});
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return this;
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}else{
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return this._el[this._textProp].replace(/\r/g, ''); // need to correct for IE's CrLf weirdness;
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}
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},
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element: function() { return this._el },
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// includes a quickie polyfill for CustomEvent for IE that isn't perfect but works for me
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// IE10 allows custom events but not "new CustomEvent"; have to do it the old-fashioned way
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dispatch: function(opts){
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opts = opts || {};
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var event = document.createEvent ? document.createEvent('CustomEvent') : this._doc.createEventObject();
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event.initCustomEvent && event.initCustomEvent(opts.type, !!opts.bubbles, !!opts.cancelable, opts.detail);
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for (var key in opts) event[key] = opts[key];
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// dispatch event asynchronously (in the sense of on the next turn of the event loop; still should be fired in order of dispatch
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var el = this._el;
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setTimeout(function(){
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try {
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el.dispatchEvent ? el.dispatchEvent(event) : el.fireEvent("on" + opts.type, document.createEventObject());
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}catch(e){
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// IE8 will not let me fire custom events at all. Call them directly
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if (jQuery) {
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jQuery(el).trigger(event);
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}else{
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var listeners = el['listen'+opts.type];
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if (listeners) for (var i = 0; i < listeners.length; ++i){
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listeners[i].call(el, event);
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}
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}
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}
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}, 0);
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return this;
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},
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listen: function (type, func){
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var el = this._el;
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if (el.addEventListener){
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el.addEventListener(type, func);
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}else if (jQuery){
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jQuery(el).on(type, func);
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}else{
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el.attachEvent("on" + type, func);
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// IE8 can't even handle custom events created with createEventObject (though it permits attachEvent), so we have to make our own
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var listeners = el['listen'+type] = el['listen'+type] || [];
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listeners.push(func);
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}
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return this;
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},
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dontlisten: function (type, func){
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var el = this._el;
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if (el.removeEventListener){
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el.removeEventListener(type, func);
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}else if (jQuery){
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jQuery(el).off(type, func);
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}else try{
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el.detachEvent("on" + type, func);
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}catch(e){
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var listeners = el['listen'+type];
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if (listeners) for (var i = 0; i < listeners.length; ++i){
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if (listeners[i] === func) listeners[i] = function(){}; // replace with a noop
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}
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}
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return this;
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}
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};
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@ -155,9 +251,10 @@ IERange.prototype._nativeSelect = function (rng){
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};
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IERange.prototype._nativeSelection = function (){
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// returns [start, end] for the selection constrained to be in element
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// this fails for an empty selection! selection.createRange() if in a text area does not create a text selection, so I can't compare it.
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var rng = this._nativeRange(); // range of the element to constrain to
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var len = this.length();
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if (this._doc.selection.type != 'Text') return [len, len]; // append to the end
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// this._el.focus(); This solves the problem of text areas not having a real selection , but sucks the focus from everything else, so I can't use it
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var sel = this._doc.selection.createRange();
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try{
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return [
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@ -176,15 +273,24 @@ IERange.prototype._nativeSetText = function (text, rng){
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rng.text = text;
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};
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IERange.prototype._nativeEOL = function(){
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if (typeof this._el.value != 'undefined'){
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if ('value' in this._el){
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this.text('\n'); // for input and textarea, insert it straight
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}else{
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this._nativeRange(this.bounds()).pasteHTML('<br/>');
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this._nativeRange(this.bounds()).pasteHTML('\n<br/>');
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}
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};
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IERange.prototype._nativeScrollIntoView = function(rng){
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rng.scrollIntoView();
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}
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IERange.prototype._nativeWrap = function(n, rng) {
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// hacky to use string manipulation but I don't see another way to do it.
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var div = document.createElement('div');
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div.appendChild(n);
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// insert the existing range HTML after the first tag
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var html = div.innerHTML.replace('><', '>'+rng.htmlText+'<');
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rng.pasteHTML(html);
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};
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// IE internals
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function iestart(rng, constraint){
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// returns the position (in character) of the start of rng within constraint. If it's not in constraint, returns 0 if it's before, length if it's after
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@ -227,19 +333,17 @@ InputRange.prototype._nativeEOL = function(){
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};
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InputRange.prototype._nativeScrollIntoView = function(rng){
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// I can't remember where I found this clever hack to find the location of text in a text area
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var style = getComputedStyle(this._el);
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var oldheight = style.height;
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var oldval = this._el.value;
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var oldselection = this._nativeSelection();
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this._el.style.height = '1px';
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this._el.value = oldval.slice(0, rng[0]);
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var top = this._el.scrollHeight;
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var clone = this._el.cloneNode(true);
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clone.style.visibility = 'hidden';
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clone.style.position = 'absolute';
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this._el.parentNode.insertBefore(clone, this._el);
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clone.style.height = '1px';
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clone.value = this._el.value.slice(0, rng[0]);
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var top = clone.scrollHeight;
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// this gives the bottom of the text, so we have to subtract the height of a single line
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this._el.value = 'X';
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top -= 2*this._el.scrollHeight; // show at least a line above
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this._el.style.height = oldheight;
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this._el.value = oldval;
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this._nativeSelect(oldselection);
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clone.value = 'X';
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top -= 2*clone.scrollHeight; // show at least a line above
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clone.parentNode.removeChild(clone);
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// scroll into position if necessary
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if (this._el.scrollTop > top || this._el.scrollTop+this._el.clientHeight < top){
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this._el.scrollTop = top;
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@ -248,7 +352,7 @@ InputRange.prototype._nativeScrollIntoView = function(rng){
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var rect = this._el.getBoundingClientRect();
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rect.top += this._win.pageYOffset - this._doc.documentElement.clientTop;
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rect.left += this._win.pageXOffset - this._doc.documentElement.clientLeft;
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// create an element to scroll to
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// create an element to scroll to (can't just use the clone above, since scrollIntoView wants a visible element)
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var div = this._doc.createElement('div');
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div.style.position = 'absolute';
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div.style.top = (rect.top+top-this._el.scrollTop)+'px'; // adjust for how far in the range is; it may not have scrolled all the way to the top
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@ -258,6 +362,7 @@ InputRange.prototype._nativeScrollIntoView = function(rng){
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div.scrollIntoViewIfNeeded ? div.scrollIntoViewIfNeeded() : div.scrollIntoView();
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div.parentNode.removeChild(div);
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}
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InputRange.prototype._nativeWrap = function() {throw new Error("Cannot wrap in a text element")};
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function W3CRange(){}
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W3CRange.prototype = new Range();
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@ -309,6 +414,10 @@ W3CRange.prototype._nativeScrollIntoView = function(rng){
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span.scrollIntoViewIfNeeded ? span.scrollIntoViewIfNeeded() : span.scrollIntoView();
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span.parentNode.removeChild(span);
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}
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W3CRange.prototype._nativeWrap = function(n, rng) {
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rng.surroundContents(n);
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};
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// W3C internals
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function nextnode (node, root){
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// in-order traversal
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@ -402,5 +511,6 @@ NothingRange.prototype._nativeEOL = function(){
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NothingRange.prototype._nativeScrollIntoView = function(){
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this._el.scrollIntoView();
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};
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NothingRange.prototype._nativeWrap = function() {throw new Error("Wrapping not implemented")};
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})();
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