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Add util.iterFrames.

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This commit is contained in:
Doug Kearns
2015-07-06 23:55:51 +10:00
parent 58faec7655
commit 85eede1ee2
2 changed files with 24 additions and 19 deletions
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31
common/modules/util.jsm
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@@ -1704,6 +1704,19 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
}
},
/**
* Iterates, depth-first, over the given window and all of its descendant
* frames.
*
* @param {nsIDOMWindow} win The root window.
* @returns {Generator(nsIDOMWindow)}
*/
iterFrames: function* iterFrames(win) {
yield win;
for (let i = 0; i < win.frames.length; i++)
yield* iterFrames(win.frames[i]);
},
/**
* Returns a list of all domains and subdomains of documents in the
* given window and all of its descendant frames.
@@ -1712,16 +1725,14 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
* @returns {[string]} The visible domains.
*/
visibleHosts: function visibleHosts(win) {
let res = [],
seen = new RealSet;
(function rec(frame) {
let res = [], seen = new RealSet;
for (let frame of this.iterFrames(win)) {
try {
if (frame.location.hostname)
res = res.concat(util.subdomains(frame.location.hostname));
}
catch (e) {}
Array.forEach(frame.frames, rec);
})(win);
}
return res.filter(h => !seen.add(h));
},
@@ -1733,15 +1744,13 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
* @returns {[nsIURI]} The visible URIs.
*/
visibleURIs: function visibleURIs(win) {
let res = [],
seen = new RealSet;
(function rec(frame) {
let res = [], seen = new RealSet;
for (let frame of this.iterFrames(win)) {
try {
res = res.concat(util.newURI(frame.location.href));
res.push(util.newURI(frame.location.href));
}
catch (e) {}
Array.forEach(frame.frames, rec);
})(win);
}
return res.filter(h => !seen.add(h.spec));
},