Jstree - node selection based on current navigation url

Question

Today, I use jsTree built-in cookies to save user navigation in the tree.

on node, click in the tree where the user is redirected to the corresponding page on my site, and the node click is selected / highlighted thanks to the jsTree cookie integration.

Now I would like to select / highlight the nodes in the tree also based on navigation between the website, that is, the link on the site can also be a node in the tree, for example, a grid of strings that also appear in the tree.

The question is how can I do this “manually” node selection / selection, and I also think I should know where the user came from, from a tree or from some other link on the site.

Thank,

Answer 1

I have already built a complete approach for this using jsTree, hashchange event and real real URLs that can be useful for SEO, so it will fit in with your idea very easily and you can throw cookies, but not like that. This also works with bookmarks and arriving from the URL when it browses the nodes and then matches the links to select the node . This is best with AJAX, although it is possible whenever possible.

I comment on this for you so that you can understand it. A working example is here www.kitgui.com/docs , which shows all the content.

$(function () {
        // used to remove double reload since hash and click are intertwined
    var cancelHashChange = false,
        // method sets the selector based off of URL input
    setSelector = function (path) {
        var startIndex = path.indexOf('/docs');
        if (startIndex > -1) {
            path = path.substr(startIndex);
        }
        path = path.replace('/docs', '').replace('/', '');
        if ($.trim(path) === '') { path = 'overview'; }
        return '.' + path;
    };
        // sets theme without the folders, plain jane
    $('.doc-nav').jstree({
        "themes": {
            "theme": "classic",
            "dots": true,
            "icons": false
        }
    }).bind("loaded.jstree", function (event, data) {
        // when loaded sets initial state based off of priority hash first OR url
        if (window.location.hash) { // if hash defined then set tree state
            $.jstree._focused().select_node(selector);
            $(setSelector(window.location.hash.substr(1)) + ' a:first').trigger('click');
        } else { // otherwise base state off of URL
            $.jstree._focused().select_node(setSelector(window.location.pathname));
        }
    });
        // all links within the content area if referring to tree will affect tree
        // and jump to content instead of refreshing page
    $('.doc-nav a').live('click', function (ev) {
        var $ph = $('<div />'), href = $(this).attr('href');
        ev.preventDefault();
        cancelHashChange = true;
            // sets state of hash
        window.location = '#' + $(this).attr('href');
        $('.doc-content').fadeOut('fast');
            // jQuery magic load method gets remote content (John Resig is the man!!!)
        $ph.load($(this).attr('href') + ' .doc-content', function () {
            cancelHashChange = false;
            $('.doc-content').fadeOut('fast', function () {
                $('.doc-content').html($ph.find('.doc-content').html()).fadeIn('fast');
            });
        });
    });
        // if doc content is clicked and has referring tree content, 
        // affect state of tree and change tree content instead of doing link
    $('.doc-content a').live('click', function (ev) {
        ev.preventDefault();
        if ($(this).attr('href').indexOf('docs/') > -1) {
            $.jstree._focused().select_node(setSelector($(this).attr('href')));
            $(setSelector($(this).attr('href')) + ' a:first').trigger('click', false);
        }
    });
        // if back/forward are used, maintain state of tree as if it was being clicked
        // refers to previously defined click event to avoid double-duty
        // but requires ensuring no double loading
    window.onhashchange = function () {
        if (cancelHashChange) { cancelHashChange = false; return; }
        $.jstree._focused().select_node(setSelector(window.location.hash.substr(1)));
        $(setSelector(window.location.hash.substr(1)) + ' a:first').trigger('click', false);
    };
    $('#top-doc-link').closest('li').addClass('active');
});

Feel free to ask me if you have more questions.