1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
|
// change_to: "on" or "off"
EditArea.prototype.change_highlight= function(change_to){
if(this.settings["syntax"].length==0 && change_to==false){
this.switchClassSticky(_$("highlight"), 'editAreaButtonDisabled', true);
this.switchClassSticky(_$("reset_highlight"), 'editAreaButtonDisabled', true);
return false;
}
if(this.do_highlight==change_to)
return false;
this.getIESelection();
var pos_start= this.textarea.selectionStart;
var pos_end= this.textarea.selectionEnd;
if(this.do_highlight===true || change_to==false)
this.disable_highlight();
else
this.enable_highlight();
this.textarea.focus();
this.textarea.selectionStart = pos_start;
this.textarea.selectionEnd = pos_end;
this.setIESelection();
};
EditArea.prototype.disable_highlight= function(displayOnly){
var t= this, a=t.textarea, new_Obj, old_class, new_class;
t.selection_field.innerHTML="";
t.selection_field_text.innerHTML="";
t.content_highlight.style.visibility="hidden";
// replacing the node is far more faster than deleting it's content in firefox
new_Obj= t.content_highlight.cloneNode(false);
new_Obj.innerHTML= "";
t.content_highlight.parentNode.insertBefore(new_Obj, t.content_highlight);
t.content_highlight.parentNode.removeChild(t.content_highlight);
t.content_highlight= new_Obj;
old_class= parent.getAttribute( a,"class" );
if(old_class){
new_class= old_class.replace( "hidden","" );
parent.setAttribute( a, "class", new_class );
}
a.style.backgroundColor="transparent"; // needed in order to see the bracket finders
//var icon= document.getElementById("highlight");
//setAttribute(icon, "class", getAttribute(icon, "class").replace(/ selected/g, "") );
//t.restoreClass(icon);
//t.switchClass(icon,'editAreaButtonNormal');
t.switchClassSticky(_$("highlight"), 'editAreaButtonNormal', true);
t.switchClassSticky(_$("reset_highlight"), 'editAreaButtonDisabled', true);
t.do_highlight=false;
t.switchClassSticky(_$("change_smooth_selection"), 'editAreaButtonSelected', true);
if(typeof(t.smooth_selection_before_highlight)!="undefined" && t.smooth_selection_before_highlight===false){
t.change_smooth_selection_mode(false);
}
// this.textarea.style.backgroundColor="#FFFFFF";
};
EditArea.prototype.enable_highlight= function(){
var t=this, a=t.textarea, new_class;
t.show_waiting_screen();
t.content_highlight.style.visibility="visible";
new_class =parent.getAttribute(a,"class")+" hidden";
parent.setAttribute( a, "class", new_class );
// IE can't manage mouse click outside text range without this
if( t.isIE )
a.style.backgroundColor="#FFFFFF";
t.switchClassSticky(_$("highlight"), 'editAreaButtonSelected', false);
t.switchClassSticky(_$("reset_highlight"), 'editAreaButtonNormal', false);
t.smooth_selection_before_highlight=t.smooth_selection;
if(!t.smooth_selection)
t.change_smooth_selection_mode(true);
t.switchClassSticky(_$("change_smooth_selection"), 'editAreaButtonDisabled', true);
t.do_highlight=true;
t.resync_highlight();
t.hide_waiting_screen();
};
/**
* Ask to update highlighted text
* @param Array infos - Array of datas returned by EditArea.get_selection_infos()
*/
EditArea.prototype.maj_highlight= function(infos){
// for speed mesure
var debug_opti="",tps_start= new Date().getTime(), tps_middle_opti=new Date().getTime();
var t=this, hightlighted_text, updated_highlight;
var textToHighlight=infos["full_text"], doSyntaxOpti = false, doHtmlOpti = false, stay_begin="", stay_end="", trace_new , trace_last;
if(t.last_text_to_highlight==infos["full_text"] && t.resync_highlight!==true)
return;
// OPTIMISATION: will search to update only changed lines
if(t.reload_highlight===true){
t.reload_highlight=false;
}else if(textToHighlight.length==0){
textToHighlight="\n ";
}else{
// get text change datas
changes = t.checkTextEvolution(t.last_text_to_highlight,textToHighlight);
// check if it can only reparse the changed text
trace_new = t.get_syntax_trace(changes.newTextLine).replace(/\r/g, '');
trace_last = t.get_syntax_trace(changes.lastTextLine).replace(/\r/g, '');
doSyntaxOpti = ( trace_new == trace_last );
// check if the difference comes only from a new line created
// => we have to remember that the editor can automaticaly add tabulation or space after the new line)
if( !doSyntaxOpti && trace_new == "\n"+trace_last && /^[ \t\s]*\n[ \t\s]*$/.test( changes.newText.replace(/\r/g, '') ) && changes.lastText =="" )
{
doSyntaxOpti = true;
}
// we do the syntax optimisation
if( doSyntaxOpti ){
tps_middle_opti=new Date().getTime();
stay_begin= t.last_hightlighted_text.split("\n").slice(0, changes.lineStart).join("\n");
if(changes.lineStart>0)
stay_begin+= "\n";
stay_end= t.last_hightlighted_text.split("\n").slice(changes.lineLastEnd+1).join("\n");
if(stay_end.length>0)
stay_end= "\n"+stay_end;
// Final check to see that we're not in the middle of span tags
if( stay_begin.split('<span').length != stay_begin.split('</span').length
|| stay_end.split('<span').length != stay_end.split('</span').length )
{
doSyntaxOpti = false;
stay_end = '';
stay_begin = '';
}
else
{
if(stay_begin.length==0 && changes.posLastEnd==-1)
changes.newTextLine+="\n";
textToHighlight=changes.newTextLine;
}
}
if(t.settings["debug"]){
var ch =changes;
debug_opti= ( doSyntaxOpti?"Optimisation": "No optimisation" )
+" start: "+ch.posStart +"("+ch.lineStart+")"
+" end_new: "+ ch.posNewEnd+"("+ch.lineNewEnd+")"
+" end_last: "+ ch.posLastEnd+"("+ch.lineLastEnd+")"
+"\nchanged_text: "+ch.newText+" => trace: "+trace_new
+"\nchanged_last_text: "+ch.lastText+" => trace: "+trace_last
//debug_opti+= "\nchanged: "+ infos["full_text"].substring(ch.posStart, ch.posNewEnd);
+ "\nchanged_line: "+ch.newTextLine
+ "\nlast_changed_line: "+ch.lastTextLine
+"\nstay_begin: "+ stay_begin.slice(-100)
+"\nstay_end: "+ stay_end.substr( 0, 100 );
//debug_opti="start: "+stay_begin_len+ "("+nb_line_start_unchanged+") end: "+ (stay_end_len)+ "("+(splited.length-nb_line_end_unchanged)+") ";
//debug_opti+="changed: "+ textToHighlight.substring(stay_begin_len, textToHighlight.length-stay_end_len)+" \n";
//debug_opti+="changed: "+ stay_begin.substr(stay_begin.length-200)+ "----------"+ textToHighlight+"------------------"+ stay_end.substr(0,200) +"\n";
+"\n";
}
// END OPTIMISATION
}
tps_end_opti = new Date().getTime();
// apply highlight
updated_highlight = t.colorize_text(textToHighlight);
tpsAfterReg = new Date().getTime();
/***
* see if we can optimize for updating only the required part of the HTML code
*
* The goal here will be to find the text node concerned by the modification and to update it
*/
//-------------------------------------------
// disable latest optimization tricks (introduced in 0.8.1 and removed in 0.8.2), TODO: check for another try later
doSyntaxOpti = doHtmlOpti = false;
if( doSyntaxOpti )
{
try
{
var replacedBloc, i, nbStart = '', nbEnd = '', newHtml, lengthOld, lengthNew;
replacedBloc = t.last_hightlighted_text.substring( stay_begin.length, t.last_hightlighted_text.length - stay_end.length );
lengthOld = replacedBloc.length;
lengthNew = updated_highlight.length;
// find the identical caracters at the beginning
for( i=0; i < lengthOld && i < lengthNew && replacedBloc.charAt(i) == updated_highlight.charAt(i) ; i++ )
{
}
nbStart = i;
// find the identical caracters at the end
for( i=0; i + nbStart < lengthOld && i + nbStart < lengthNew && replacedBloc.charAt(lengthOld-i-1) == updated_highlight.charAt(lengthNew-i-1) ; i++ )
{
}
nbEnd = i;
//console.log( nbStart, nbEnd, replacedBloc, updated_highlight );
// get the changes
lastHtml = replacedBloc.substring( nbStart, lengthOld - nbEnd );
newHtml = updated_highlight.substring( nbStart, lengthNew - nbEnd );
// We can do the optimisation only if we havn't touch to span elements
if( newHtml.indexOf('<span') == -1 && newHtml.indexOf('</span') == -1
&& lastHtml.indexOf('<span') == -1 && lastHtml.indexOf('</span') == -1 )
{
var beginStr, nbOpendedSpan, nbClosedSpan, nbUnchangedChars, span, textNode;
doHtmlOpti = true;
beginStr = t.last_hightlighted_text.substr( 0, stay_begin.length + nbStart );
// fix special chars
newHtml = newHtml.replace( /</g, '<').replace( />/g, '>').replace( /&/g, '&');
nbOpendedSpan = beginStr.split('<span').length - 1;
nbClosedSpan = beginStr.split('</span').length - 1;
// retrieve the previously opened span (Add 1 for the first level span?)
span = t.content_highlight.getElementsByTagName('span')[ nbOpendedSpan ];
//--------[
// get the textNode to update
// if we're inside a span, we'll take the one that is opened (can be a parent of the current span)
parentSpan = span;
maxStartOffset = maxEndOffset = 0;
// it will be in the child of the root node
if( nbOpendedSpan == nbClosedSpan )
{
while( parentSpan.parentNode != t.content_highlight && parentSpan.parentNode.tagName != 'PRE' )
{
parentSpan = parentSpan.parentNode;
}
}
// get the last opened span
else
{
maxStartOffset = maxEndOffset = beginStr.length + 1;
// move to parent node for each closed span found after the lastest open span
nbClosed = beginStr.substr( Math.max( 0, beginStr.lastIndexOf( '<span', maxStartOffset - 1 ) ) ).split('</span').length - 1;
while( nbClosed > 0 )
{
nbClosed--;
parentSpan = parentSpan.parentNode;
}
// find the position of the last opended tag
while( parentSpan.parentNode != t.content_highlight && parentSpan.parentNode.tagName != 'PRE' && ( tmpMaxStartOffset = Math.max( 0, beginStr.lastIndexOf( '<span', maxStartOffset - 1 ) ) ) < ( tmpMaxEndOffset = Math.max( 0, beginStr.lastIndexOf( '</span', maxEndOffset - 1 ) ) ) )
{
maxStartOffset = tmpMaxStartOffset;
maxEndOffset = tmpMaxEndOffset;
}
}
// Note: maxEndOffset is no more used but maxStartOffset will be used
if( parentSpan.parentNode == t.content_highlight || parentSpan.parentNode.tagName == 'PRE' )
{
maxStartOffset = Math.max( 0, beginStr.indexOf( '<span' ) );
}
// find the matching text node (this will be one that will be at the end of the beginStr
if( maxStartOffset == beginStr.length )
{
nbSubSpanBefore = 0;
}
else
{
lastEndPos = Math.max( 0, beginStr.lastIndexOf( '>', maxStartOffset ) );
// count the number of sub spans
nbSubSpanBefore = beginStr.substr( lastEndPos ).split('<span').length-1;
}
// there is no sub-span before
if( nbSubSpanBefore == 0 )
{
textNode = parentSpan.firstChild;
}
// we need to find where is the text node modified
else
{
// take the last direct child (no sub-child)
lastSubSpan = parentSpan.getElementsByTagName('span')[ nbSubSpanBefore - 1 ];
while( lastSubSpan.parentNode != parentSpan )
{
lastSubSpan = lastSubSpan.parentNode;
}
// associate to next text node following the last sub span
if( lastSubSpan.nextSibling == null || lastSubSpan.nextSibling.nodeType != 3 )
{
textNode = document.createTextNode('');
lastSubSpan.parentNode.insertBefore( textNode, lastSubSpan.nextSibling );
}
else
{
textNode = lastSubSpan.nextSibling;
}
}
//--------]
//--------[
// update the textNode content
// number of caracters after the last opened of closed span
//nbUnchangedChars = ( lastIndex = beginStr.lastIndexOf( '>' ) ) == -1 ? beginStr.length : beginStr.length - ( lastIndex + 1 );
//nbUnchangedChars = ? beginStr.length : beginStr.substr( lastIndex + 1 ).replace( /</g, '<').replace( />/g, '>').replace( /&/g, '&').length;
if( ( lastIndex = beginStr.lastIndexOf( '>' ) ) == -1 )
{
nbUnchangedChars = beginStr.length;
}
else
{
nbUnchangedChars = beginStr.substr( lastIndex + 1 ).replace( /</g, '<').replace( />/g, '>').replace( /&/g, '&').length;
//nbUnchangedChars += beginStr.substr( ).replace( /&/g, '&').replace( /</g, '<').replace( />/g, '>').length - beginStr.length;
}
//alert( nbUnchangedChars );
// console.log( span, textNode, nbOpendedSpan,nbClosedSpan, span.nextSibling, textNode.length, nbUnchangedChars, lastHtml, lastHtml.length, newHtml, newHtml.length );
// alert( textNode.parentNode.className +'-'+ textNode.parentNode.tagName+"\n"+ textNode.data +"\n"+ nbUnchangedChars +"\n"+ lastHtml.length +"\n"+ newHtml +"\n"+ newHtml.length );
// console.log( nbUnchangedChars, lastIndex, beginStr.length, beginStr.replace(/&/g, '&'), lastHtml.length, '|', newHtml.replace( /\t/g, 't').replace( /\n/g, 'n').replace( /\r/g, 'r'), lastHtml.replace( /\t/g, 't').replace( /\n/g, 'n').replace( /\r/, 'r') );
// console.log( textNode.data.replace(/&/g, '&') );
// IE only manage \r for cariage return in textNode and not \n or \r\n
if( t.isIE )
{
nbUnchangedChars -= ( beginStr.substr( beginStr.length - nbUnchangedChars ).split("\n").length - 1 );
//alert( textNode.data.replace(/\r/g, '_r').replace(/\n/g, '_n'));
textNode.replaceData( nbUnchangedChars, lastHtml.replace(/\n/g, '').length, newHtml.replace(/\n/g, '') );
}
else
{
textNode.replaceData( nbUnchangedChars, lastHtml.length, newHtml );
}
//--------]
}
}
// an exception shouldn't occured but if replaceData failed at least it won't break everything
catch( e )
{
// throw e;
// console.log( e );
doHtmlOpti = false;
}
}
/*** END HTML update's optimisation ***/
// end test
// console.log( (TPS6-TPS5), (TPS5-TPS4), (TPS4-TPS3), (TPS3-TPS2), (TPS2-TPS1), _CPT );
// get the new highlight content
tpsAfterOpti2 = new Date().getTime();
hightlighted_text = stay_begin + updated_highlight + stay_end;
if( !doHtmlOpti )
{
// update the content of the highlight div by first updating a clone node (as there is no display in the same time for t node it's quite faster (5*))
var new_Obj= t.content_highlight.cloneNode(false);
if( ( t.isIE && t.isIE < 8 ) || ( t.isOpera && t.isOpera < 9.6 ) )
new_Obj.innerHTML= "<pre><span class='"+ t.settings["syntax"] +"'>" + hightlighted_text + "</span></pre>";
else
new_Obj.innerHTML= "<span class='"+ t.settings["syntax"] +"'>"+ hightlighted_text +"</span>";
t.content_highlight.parentNode.replaceChild(new_Obj, t.content_highlight);
t.content_highlight= new_Obj;
}
t.last_text_to_highlight= infos["full_text"];
t.last_hightlighted_text= hightlighted_text;
tps3=new Date().getTime();
if(t.settings["debug"]){
//lineNumber=tab_text.length;
//t.debug.value+=" \nNB char: "+_$("src").value.length+" Nb line: "+ lineNumber;
t.debug.value= "Tps optimisation "+(tps_end_opti-tps_start)
+" | tps reg exp: "+ (tpsAfterReg-tps_end_opti)
+" | tps opti HTML : "+ (tpsAfterOpti2-tpsAfterReg) + ' '+ ( doHtmlOpti ? 'yes' : 'no' )
+" | tps update highlight content: "+ (tps3-tpsAfterOpti2)
+" | tpsTotal: "+ (tps3-tps_start)
+ "("+tps3+")\n"+ debug_opti;
// t.debug.value+= "highlight\n"+hightlighted_text;*/
}
};
EditArea.prototype.resync_highlight= function(reload_now){
this.reload_highlight=true;
this.last_text_to_highlight="";
this.focus();
if(reload_now)
this.check_line_selection(false);
};
|
