// Двойным левым кликом на папке закладок добавлять закладку в папку закладок, от 09.05.2014. ................................
addEventListener("dblclick", function(e) {      
   var target = e.originalTarget;
              
   if ( e.button !== 0 || !target._placesNode || !PlacesUtils.nodeIsFolder( target._placesNode ) ) return;          
        var docTitle = ( content.document.title || gBrowser.mCurrentTab.label).substr(0, 50);
        var folderId = PlacesUtils.getConcreteItemId( target._placesNode );
        var folderTitle = PlacesUtils.bookmarks.getItemTitle( folderId );
        var currentURI = Services.io.newURI( content.location, null, null );
        PlacesUtils.bookmarks.insertBookmark( folderId, currentURI, 0, docTitle );  

        // всплывающая подсказка ....
        var favicon = ( !!gBrowser.mCurrentTab.image ) ? gBrowser.mCurrentTab.image : "chrome://global/skin/icons/Portrait.png";
        Cc["@mozilla.org/alerts-service;1"].getService(Ci.nsIAlertsService)
        .showAlertNotification( favicon, "Добавил в папку " + folderTitle + ":", docTitle, false, "", null, ""); 
});

var lighted = (finder._highlight || finder._highlightDoc).bind(finder);

const forceFind = false, forceFindCS = true;

// Приклеить элемент findbar к странице( #appcontent ) ................................
const fbID = "FindToolbar-m";
delete window.gFindBar;
window.gFindBar = document.getElementById(fbID);
if (!gFindBar) {
    gFindBar = gBrowser.parentNode.insertBefore(document.createElement("findbar"), gBrowser);
    gFindBar.id = fbID;
    gFindBar.setAttribute("browserid", "content");
    gFindBar.clientTop;
    delete window.gFindBarInitialized;
    window.gFindBarInitialized = true;
    gFindBar._selectionMaxLen = 1000;    // лимит символов для поиска
}


// Ctrl+F, показать - скрыть панель поиска ....................................
function toggleFindbar() gFindBar.hidden ? gFindBar.onFindCommand() : gFindBar.close();
addEventListener("keydown", function(e)
    e.keyCode == e.DOM_VK_F && e.ctrlKey && !e.altKey && !e.shiftKey
    && !e.preventDefault() && toggleFindbar()
, false);
this.onclick = function(e) { if (!e.button) toggleFindbar() };


// Показать количество совпадений на панели поиска ................................
const textbox = gFindBar.getElement("findbar-textbox"),
nrm = Ci.nsISelectionController.SELECTION_NORMAL, labID = "hits-m";
var lab = document.getElementById(labID);
if (!lab) {
    lab = textbox.parentNode.insertBefore(document.createElement("label"), textbox);
    lab.id = labID;
}
var curHit, allHits;

function updateHits(arg) {
    if (gFindBar.hidden) return;
    var word = textbox.value;
    if (!word) {
        lab.value = "0/0";
        textbox.removeAttribute("status");
        return;
    }
    var win = arg instanceof Window && arg || content;
    if (win == content) curHit = allHits = 0;
    var findbarFinder = gFindBar._browser.finder;
    var controller = findbarFinder._getSelectionController(win);
    var doc = win.document;

    if (word && controller && doc && doc.documentElement) {
        var body = doc instanceof HTMLDocument && doc.body ? doc.body : doc.documentElement;

        var searchRange = doc.createRange();
        searchRange.selectNodeContents(body);
        var startPt = searchRange.cloneRange();
        startPt.collapse(true);
        var endPt = searchRange.cloneRange();
        endPt.collapse(false);

        var retRange = null;
        var finder = Cc["@mozilla.org/embedcomp/rangefind;1"].createInstance().QueryInterface(Ci.nsIFind);
        finder.caseSensitive = gFindBar._shouldBeCaseSensitive(word);

        while ((retRange = finder.Find(word, searchRange, startPt, endPt))) {
            allHits++;
            if (!curHit) {
                var sel = controller.getSelection(nrm), range;
                if (sel.toString()) range = sel.getRangeAt(0);
                else {
                    var editableNode = findbarFinder._getEditableNode(retRange.startContainer);
                    if (editableNode) sel = editableNode.editor.selectionController.getSelection(nrm);
                    if (sel.toString()) range = sel.getRangeAt(0);
                }
                var comp = range && ["startContainer", "endContainer", "startOffset", "endOffset"]
                    .every(function(prop) range[prop] == retRange[prop]);
                if (comp) curHit = allHits;
            }
            startPt = retRange.cloneRange();
            startPt.collapse(false);
        }
        Array.forEach(win.frames, function(frame) updateHits(frame));
    }
    if (win != content) return;
    allHits ? textbox.removeAttribute("status") : textbox.setAttribute("status", "notfound");
    forceFind && !curHit && allHits && gFindBar._find();
    lab.value = curHit + "/" + allHits;
}
updateHits();


gFindBar.updateHits = updateHits;
function insUpd(methodName, code) {
    const method = gFindBar[methodName];
    gFindBar[methodName] = Function("arguments.callee.method.apply(this, arguments);" + (code || "") + " this.updateHits();");
    gFindBar[methodName].method = method;
    addDestructor(function() gFindBar[methodName] = method);
}
insUpd("_find"); insUpd("_findAgain");
insUpd("_setCaseSensitivity", forceFindCS && " this._find();");


const progressListener = {
    onStateChange: function(wpr, req, state)
        state & Ci.nsIWebProgressListener.STATE_STOP && setTimeout(updateHits, 320),
    onLocationChange: function(wpr, req) !req && updateHits()
};
addDestructor(function() gBrowser.removeProgressListener(progressListener));


function onFindbar() {
    gBrowser[(gFindBar.hidden ? "remove" : "add") + "ProgressListener"](progressListener);
    !gFindBar.hidden && updateHits();
}
onFindbar();
const observer = MutationObserver(onFindbar);
observer.observe(gFindBar, { attributes: true, attributesFilter: ["hidden"] });
addDestructor(function() observer.disconnect());