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Code Issues Projects Releases Wiki Activity

Cleanup the search highlighting code a bit.

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This commit is contained in:
Kris Maglione
2008-09-15 06:29:46 +00:00
parent 7caca73e18
commit 6044370007
1 changed files with 34 additions and 89 deletions
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123
content/find.js
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@@ -141,93 +141,38 @@ liberator.Search = function () //{{{
var range; var range;
while ((range = finder.Find(aWord, while ((range = finder.Find(aWord,
this._searchRange, this.searchRange,
this._startPt, this.startPt,
this._endPt))) this.endPt)))
yield range; yield range;
}, },
highlightDoc: function highlightDoc(win, aWord) highlightDoc: function highlightDoc(win, aWord)
{ {
var textFound = false; Array.forEach(win.frames, function (frame) highlightDoc(aWord, frame));
Array.forEach(win.frames, function (frame)
{
if (highlightDoc(aWord, frame))
textFound = true;
});
var doc = win.document; var doc = win.document;
if (!doc || !(doc instanceof HTMLDocument)) if (!doc || !(doc instanceof HTMLDocument))
return textFound; return;
var body = doc.body;
var count = body.childNodes.length;
this._searchRange = doc.createRange();
this._startPt = doc.createRange();
this._endPt = doc.createRange();
this._searchRange.setStart(body, 0);
this._searchRange.setEnd(body, count);
this._startPt.setStart(body, 0);
this._startPt.setEnd(body, 0);
this._endPt.setStart(body, count);
this._endPt.setEnd(body, count);
if (!aWord) { if (!aWord) {
// Remove highlighting. We use the find API again rather than let elems = doc.getElementsByClassName("__liberator-search");
// searching for our span elements so that we gain access to the for (let i=elems.length; --i >= 0;)
// anonymous content that nsIFind searches.
if (!this._lastHighlightString)
return textFound;
var retRange = null;
var finder = Components.classes["@mozilla.org/embedcomp/rangefind;1"]
.createInstance(Components.interfaces.nsIFind);
for (let retRange in this.search(this._lastHighlightString))
{ {
var startContainer = retRange.startContainer; let elem = elems[i];
var elem = null; let docfrag = doc.createDocumentFragment();
try let next = elem.nextSibling;
{ let parent = elem.parentNode;
elem = startContainer.parentNode;
}
catch (ex) {}
if (elem && elem.className == "__liberator-search") let child;
{ while (child = elem.firstChild)
var child = null; docfrag.appendChild(child);
var docfrag = doc.createDocumentFragment();
var next = elem.nextSibling;
var parent = elem.parentNode;
while ((child = elem.firstChild)) { parent.removeChild(elem);
docfrag.appendChild(child); parent.insertBefore(docfrag, next);
} parent.normalize();
this._startPt = doc.createRange();
this._startPt.setStartAfter(elem);
parent.removeChild(elem);
parent.insertBefore(docfrag, next);
parent.normalize();
}
else
{
// Somehow we didn't highlight this instance; just skip it.
this._startPt = doc.createRange();
this._startPt.setStart(retRange.endContainer,
retRange.endOffset);
}
this._startPt.collapse(true);
textFound = true;
} }
return textFound; return;
} }
var baseNode = doc.createElementNS("http://www.w3.org/1999/xhtml", "span"); var baseNode = doc.createElementNS("http://www.w3.org/1999/xhtml", "span");
@@ -237,28 +182,28 @@ liberator.Search = function () //{{{
baseNode.style.padding = "0"; baseNode.style.padding = "0";
baseNode.className = "__liberator-search"; baseNode.className = "__liberator-search";
return this.highlightText(aWord, baseNode) || textFound; var body = doc.body;
}, var count = body.childNodes.length;
this.searchRange = doc.createRange();
this.startPt = doc.createRange();
this.endPt = doc.createRange();
highlightText: function highlightText(aWord, aBaseNode) this.searchRange.setStart(body, 0);
{ this.searchRange.setEnd(body, count);
var retRange = null;
this.startPt.setStart(body, 0);
this.startPt.setEnd(body, 0);
this.endPt.setStart(body, count);
this.endPt.setEnd(body, count);
for(let retRange in this.search(aWord, caseSensitive)) { for(let retRange in this.search(aWord, caseSensitive)) {
var textFound = false;
// Highlight // Highlight
var nodeSurround = aBaseNode.cloneNode(true); var nodeSurround = baseNode.cloneNode(true);
var node = this.highlight(retRange, nodeSurround); var node = this.highlight(retRange, nodeSurround);
this._startPt = node.ownerDocument.createRange(); this.startPt = node.ownerDocument.createRange();
this._startPt.setStart(node, node.childNodes.length); this.startPt.setStart(node, node.childNodes.length);
this._startPt.setEnd(node, node.childNodes.length); this.startPt.setEnd(node, node.childNodes.length);
textFound = true;
} }
this._lastHighlightString = aWord;
return textFound;
}, },
highlight: function highlight(aRange, aNode) highlight: function highlight(aRange, aNode)