Merge branch 'master' of https://github.com/designcreateplay/NodeBB
Baris Soner Usakli
11 years ago
commit
94ae80010b
@ -0,0 +1,252 @@
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tabIndent = {
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version: '0.1.8',
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config: {
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tab: '\t'
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},
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events: {
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keydown: function(e) {
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var tab = tabIndent.config.tab;
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var tabWidth = tab.length;
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if (e.keyCode === 9) {
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e.preventDefault();
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var currentStart = this.selectionStart,
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currentEnd = this.selectionEnd;
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if (e.shiftKey === false) {
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// Normal Tab Behaviour
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if (!tabIndent.isMultiLine(this)) {
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// Add tab before selection, maintain highlighted text selection
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this.value = this.value.slice(0, currentStart) + tab + this.value.slice(currentStart);
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this.selectionStart = currentStart + tabWidth;
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this.selectionEnd = currentEnd + tabWidth;
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} else {
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// Iterating through the startIndices, if the index falls within selectionStart and selectionEnd, indent it there.
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var startIndices = tabIndent.findStartIndices(this),
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l = startIndices.length,
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newStart = undefined,
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newEnd = undefined,
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affectedRows = 0;
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while(l--) {
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var lowerBound = startIndices[l];
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if (startIndices[l+1] && currentStart != startIndices[l+1]) lowerBound = startIndices[l+1];
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if (lowerBound >= currentStart && startIndices[l] < currentEnd) {
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this.value = this.value.slice(0, startIndices[l]) + tab + this.value.slice(startIndices[l]);
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newStart = startIndices[l];
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if (!newEnd) newEnd = (startIndices[l+1] ? startIndices[l+1] - 1 : 'end');
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affectedRows++;
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}
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}
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this.selectionStart = newStart;
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this.selectionEnd = (newEnd !== 'end' ? newEnd + (tabWidth * affectedRows) : this.value.length);
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}
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} else {
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// Shift-Tab Behaviour
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if (!tabIndent.isMultiLine(this)) {
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if (this.value.substr(currentStart - tabWidth, tabWidth) == tab) {
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// If there's a tab before the selectionStart, remove it
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this.value = this.value.substr(0, currentStart - tabWidth) + this.value.substr(currentStart);
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this.selectionStart = currentStart - tabWidth;
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this.selectionEnd = currentEnd - tabWidth;
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} else if (this.value.substr(currentStart - 1, 1) == "\n" && this.value.substr(currentStart, tabWidth) == tab) {
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// However, if the selection is at the start of the line, and the first character is a tab, remove it
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this.value = this.value.substring(0, currentStart) + this.value.substr(currentStart + tabWidth);
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this.selectionStart = currentStart;
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this.selectionEnd = currentEnd - tabWidth;
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}
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} else {
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// Iterating through the startIndices, if the index falls within selectionStart and selectionEnd, remove an indent from that row
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var startIndices = tabIndent.findStartIndices(this),
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l = startIndices.length,
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newStart = undefined,
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newEnd = undefined,
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affectedRows = 0;
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while(l--) {
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var lowerBound = startIndices[l];
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if (startIndices[l+1] && currentStart != startIndices[l+1]) lowerBound = startIndices[l+1];
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if (lowerBound >= currentStart && startIndices[l] < currentEnd) {
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if (this.value.substr(startIndices[l], tabWidth) == tab) {
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// Remove a tab
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this.value = this.value.slice(0, startIndices[l]) + this.value.slice(startIndices[l] + tabWidth);
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affectedRows++;
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} else {} // Do nothing
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newStart = startIndices[l];
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if (!newEnd) newEnd = (startIndices[l+1] ? startIndices[l+1] - 1 : 'end');
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}
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}
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this.selectionStart = newStart;
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this.selectionEnd = (newEnd !== 'end' ? newEnd - (affectedRows * tabWidth) : this.value.length);
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}
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}
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} else if (e.keyCode === 27) { // Esc
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tabIndent.events.disable(e);
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} else if (e.keyCode === 13 && e.shiftKey === false) { // Enter
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var self = tabIndent,
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cursorPos = this.selectionStart,
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startIndices = self.findStartIndices(this),
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numStartIndices = startIndices.length,
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startIndex = 0,
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endIndex = 0,
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tabMatch = new RegExp("^" + tab.replace('\t', '\\t').replace(/ /g, '\\s') + "+", 'g'),
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lineText = '';
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tabs = null;
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for(var x=0;x<numStartIndices;x++) {
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if (startIndices[x+1] && (cursorPos >= startIndices[x]) && (cursorPos < startIndices[x+1])) {
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startIndex = startIndices[x];
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endIndex = startIndices[x+1] - 1;
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break;
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} else {
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startIndex = startIndices[numStartIndices-1];
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endIndex = this.value.length;
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}
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}
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lineText = this.value.slice(startIndex, endIndex);
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tabs = lineText.match(tabMatch);
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if (tabs !== null) {
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e.preventDefault();
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var indentText = tabs[0];
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var indentWidth = indentText.length;
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var inLinePos = cursorPos - startIndex;
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if (indentWidth > inLinePos) {
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indentWidth = inLinePos;
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indentText = indentText.slice(0, inLinePos);
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}
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this.value = this.value.slice(0, cursorPos) + "\n" + indentText + this.value.slice(cursorPos);
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this.selectionStart = cursorPos + indentWidth + 1;
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this.selectionEnd = this.selectionStart;
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}
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}
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},
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disable: function(e) {
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var events = this;
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// Temporarily suspend the main tabIndent event
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tabIndent.remove(e.target);
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},
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focus: function() {
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var self = tabIndent,
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el = this,
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delayedRefocus = setTimeout(function() {
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var classes = (el.getAttribute('class') || '').split(' '),
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contains = classes.indexOf('tabIndent');
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el.addEventListener('keydown', self.events.keydown);
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el.style.backgroundImage = "url(data:image/png;base64,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)";
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el.style.backgroundPosition = 'top right';
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el.style.backgroundRepeat = 'no-repeat';
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if (contains !== -1) classes.splice(contains, 1);
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classes.push('tabIndent-rendered');
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el.setAttribute('class', classes.join(' '));
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el.removeEventListener('focus', self.events.keydown);
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}, 500);
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// If they were just tabbing through the input, let them continue unimpeded
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el.addEventListener('blur', function b() {
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clearTimeout(delayedRefocus);
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el.removeEventListener('blur', b);
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});
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}
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},
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render: function(el) {
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var self = this;
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if (el.nodeName === 'TEXTAREA') {
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el.addEventListener('focus', self.events.focus);
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el.addEventListener('blur', function b(e) {
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self.events.disable(e);
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});
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}
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},
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renderAll: function() {
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// Find all elements with the tabIndent class
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var textareas = document.getElementsByTagName('textarea'),
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t = textareas.length,
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contains = -1,
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classes = [],
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el = undefined;
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while(t--) {
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classes = (textareas[t].getAttribute('class') || '').split(' ');
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contains = classes.indexOf('tabIndent');
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if (contains !== -1) {
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el = textareas[t];
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this.render(el);
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}
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contains = -1;
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classes = [];
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el = undefined;
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}
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},
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remove: function(el) {
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if (el.nodeName === 'TEXTAREA') {
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var classes = (el.getAttribute('class') || '').split(' '),
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contains = classes.indexOf('tabIndent-rendered');
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if (contains !== -1) {
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el.removeEventListener('keydown', this.events.keydown);
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el.style.backgroundImage = '';
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classes.splice(contains, 1);
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classes.push('tabIndent');
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el.setAttribute('class', (classes.length > 1 ? classes.join(' ') : classes[0]));
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}
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}
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},
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removeAll: function() {
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// Find all elements with the tabIndent class
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var textareas = document.getElementsByTagName('textarea'),
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t = textareas.length,
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contains = -1,
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classes = [],
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el = undefined;
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while(t--) {
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classes = (textareas[t].getAttribute('class') || '').split(' ');
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contains = classes.indexOf('tabIndent-rendered');
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if (contains !== -1) {
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el = textareas[t];
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this.remove(el);
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}
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contains = -1;
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classes = [];
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el = undefined;
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}
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},
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isMultiLine: function(el) {
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// Extract the selection
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var snippet = el.value.slice(el.selectionStart, el.selectionEnd),
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nlRegex = new RegExp(/\n/);
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if (nlRegex.test(snippet)) return true;
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else return false;
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},
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findStartIndices: function(el) {
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var text = el.value,
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startIndices = [],
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offset = 0;
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while(text.match(/\n/) && text.match(/\n/).length > 0) {
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offset = (startIndices.length > 0 ? startIndices[startIndices.length - 1] : 0);
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var lineEnd = text.search("\n");
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startIndices.push(lineEnd + offset + 1);
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text = text.substring(lineEnd + 1);
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}
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startIndices.unshift(0);
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return startIndices;
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}
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}
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