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Simplify Editor.extendRange somewhat.

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This commit is contained in:
Kris Maglione
2011-02-01 13:01:13 -05:00
parent b81a7c662f
commit b51269584d
1 changed files with 18 additions and 20 deletions
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38
common/content/editor.js
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@@ -388,34 +388,32 @@ var Editor = Module("editor", {
},
}, {
extendRange: function extendRange(range, forward, re, sameWord) {
// FIXME: This could be so much simpler if I had more sleep.
util.dump("\n\n\n");
function advance(positive) {
let tmp = range.cloneRange();
while (tmp.endOffset < nodeRange.endOffset) {
tmp.setEnd(tmp.endContainer, tmp.endOffset + 1);
if (!re.test(String.slice(tmp, -1)) == positive)
break;
range.setEnd(tmp.endContainer, tmp.endOffset);
}
let idx = range.endOffset;
while (idx < text.length && re.test(text[idx++]) == positive)
range.setEnd(range.endContainer, idx);
}
function retreat(positive) {
let tmp = range.cloneRange();
while (tmp.startOffset > 0) {
tmp.setStart(tmp.startContainer, tmp.startOffset - 1);
if (re.test(String(tmp)[0]) == positive)
break;
range.setStart(tmp.startContainer, tmp.startOffset);
}
let idx = range.startOffset;
while (idx > 0 && re.test(text[--idx]) == positive)
range.setStart(range.startContainer, idx);
}
let nodeRange = range.cloneRange();
nodeRange.selectNodeContents(range.startContainer);
let text = String(nodeRange);
let charge = forward ? advance : retreat;
charge(true);
if (!sameWord || !forward)
charge(false);
if (forward) {
advance(true);
if (!sameWord);
advance(false);
}
else {
if (!sameWord)
retreat(false);
retreat(true);
}
return range;
},