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Search in reverse document order for next/previous links

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This commit is contained in:
Kris Maglione
2008-12-06 13:02:05 -05:00
parent 4c6aa1f585
commit cb9e48b67d
1 changed files with 31 additions and 74 deletions
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105
common/content/buffer.js
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@@ -892,7 +892,7 @@ function Buffer() //{{{
return null; return null;
} }
}, },
asIterator ? XPathResult.UNORDERED_NODE_ITERATOR_TYPE : XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, asIterator ? XPathResult.ORDERED_NODE_ITERATOR_TYPE : XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
null null
); );
@@ -959,100 +959,57 @@ function Buffer() //{{{
elem.dispatchEvent(evt); elem.dispatchEvent(evt);
}, },
followDocumentRelationship: function (relationship) followDocumentRelationship: function (rel)
{ {
function followFrameRelationship(relationship, parsedFrame) let regexps = options.get(rel + "pattern").values
{ .map(function (re) RegExp(re, "i"));
var regexps;
var relText;
var patternText;
var revString;
switch (relationship)
{
case "next":
regexps = options.get("nextpattern").values;
revString = "previous";
break;
case "previous":
// TODO: accept prev\%[ious]
regexps = options.get("previouspattern").values;
revString = "next";
break;
default:
liberator.echoerr("Bad document relationship: " + relationship);
}
relText = new RegExp(relationship, "i"); function followFrame(frame)
revText = new RegExp(revString, "i"); {
var elems = parsedFrame.document.getElementsByTagName("link"); function iter(elems) (e for ([i, e] in Iterator(elems)) if (e.rel.toLowerCase() == rel || e.rev.toLowerCase() == rel));
// links have higher priority than normal <a> hrefs
for (let i = 0; i < elems.length; i++) // <link>s have higher priority than normal <a> hrefs
let elems = frame.document.getElementsByTagName("link");
for (let elem in iter(elems))
{ {
if (relText.test(elems[i].rel) || revText.test(elems[i].rev)) liberator.open(elem.href);
{ return true;
liberator.open(elems[i].href);
return true;
}
} }
// no links? ok, look for hrefs // no links? ok, look for hrefs
elems = parsedFrame.document.getElementsByTagName("a"); elems = frame.document.getElementsByTagName("a");
for (let i = 0; i < elems.length; i++) for (let elem in iter(elems))
{ {
if (relText.test(elems[i].rel) || revText.test(elems[i].rev)) buffer.followLink(elems[i], liberator.CURRENT_TAB);
{ return true;
buffer.followLink(elems[i], liberator.CURRENT_TAB);
return true;
}
} }
for (let pattern = 0; pattern < regexps.length; pattern++) let res = buffer.evaluateXPath(options["hinttags"], frame.document);
for (let [,regex] in Iterator(regexps))
{ {
patternText = new RegExp(regexps[pattern], "i"); for (let i in util.range(res.snapshotLength, 0, true))
for (let i = 0; i < elems.length; i++)
{ {
if (patternText.test(elems[i].textContent)) let elem = res.snapshotItem(i);
if (regex.test(elem.textContent))
{ {
buffer.followLink(elems[i], liberator.CURRENT_TAB); buffer.followLink(elem, liberator.CURRENT_TAB);
return true; return true;
} }
else // images with alt text being href
if (Array.some(elem.childNodes, function (child) regex.test(child.alt)))
{ {
// images with alt text being href buffer.followLink(elem, liberator.CURRENT_TAB);
var children = elems[i].childNodes; return true;
for (let j = 0; j < children.length; j++)
{
if (patternText.test(children[j].alt))
{
buffer.followLink(elems[i], liberator.CURRENT_TAB);
return true;
}
}
} }
} }
} }
return false; return false;
} }
var retVal; let retVal = followFrame(window.content);
if (window.content.frames.length != 0) if (!retVal)
{ // only loop through frames if the main content didnt match
retVal = followFrameRelationship(relationship, window.content); retVal = Array.some(window.content.frames, followFrame);
if (!retVal)
{
// only loop through frames if the main content didnt match
for (let i = 0; i < window.content.frames.length; i++)
{
retVal = followFrameRelationship(relationship, window.content.frames[i]);
if (retVal)
break;
}
}
}
else
{
retVal = followFrameRelationship(relationship, window.content);
}
if (!retVal) if (!retVal)
liberator.beep(); liberator.beep();