Difference between revisions of "MediaWiki:Common.js"

Latest revision as of 04:34, 6 January 2019

/* Any JavaScript here will be loaded for all users on every page load. */


/* TEMPLATE:GRIMOIRE STARTS */

$(function() {

    // Activate only on 5ed pages.
    // if ((wgCategories || []).indexOf("DnD 5") === -1)
    //     return;

    var instanceId = 0,
        timeout = null;

    // Convert readable spell name into a Grimoire link.
    var grimTextToURL = function(text) {
        var spell = text.trim().toLowerCase()
            .replace(/[^\w\d\ \-]/g, '')
            .replace(/\ +/g, '-');
        return spell ? ("//thebombzen.com/grimoire/spells/" + spell) : false
    };

    // RTL alignment support depending on popup position.
    var alignPopup = function(popup) {
        var container = popup.parent(),
            width = $(window).width(),
            threshold = container.offset().left + popup.outerWidth();
        popup.toggleClass("rtl", threshold > width);
    };

    // Activation event
    $(".dnd5-grimoire").off("mouseenter").on("mouseenter", function(e) {
        var currentId = this.getAttribute("data-instance-id");

        if (!currentId)
            return;

        // Hide active popup at once if it's from another source.
        if (instanceId && instanceId != currentId) {
            var current = document.querySelector("[data-instance-id='" + instanceId + "']");
            $(current).find(".dnd5-grimoire-wrapper").hide();
        }

        instanceId = currentId;
        window.clearTimeout(timeout);
        timeout = null;

        var link = $(e.currentTarget),
            embed = link.find(".dnd5-grimoire-embed"),
            wrapper = embed.closest(".dnd5-grimoire-wrapper"),
            spellURL = grimTextToURL(link.text());


        if (!spellURL.length)
            return;

        // Instantiate on first occurence.
        if (!wrapper.length) {
            wrapper = $("<div></div>")
                .addClass("dnd5-grimoire-wrapper")
                .appendTo(link);

            embed = $("<div></div>").addClass("dnd5-grimoire-embed dnd5-grimoire-loader").appendTo(wrapper);

            // Show the block first, better with loader.

            // no Promises, damn.
            $.ajax({
                "url": spellURL,
                "type": "get",
                "cache": true
            })
            .then(function(data) {
                var doc = $(data);
                var article = doc.find("article");
                if (!article.length)
                    return console.log("Failed to find the DOM chunk with spell description");
                embed.removeClass("dnd5-grimoire-loader").append(article);
                alignPopup(wrapper);
            })
            .fail(function() {
                embed.removeClass("loading").html("<p>Failed to look up this spell :(</p>");
            });
        }

        if (!wrapper.is(":visible")) {
            wrapper.show();
            alignPopup(wrapper);
        }
    });

    // Deactivation event
    $(".dnd5-grimoire").off("mouseleave").on("mouseleave", function(e) {
        var link = $(e.currentTarget),
            wrapper = link.find(".dnd5-grimoire-wrapper"),
            leaveId = this.getAttribute("data-instance-id");
        if (leaveId == instanceId && !timeout) {
            timeout = window.setTimeout(function() {
                wrapper.hide();
                timeout = instanceId = 0;
            }, 150);
        }
    });

    // Swap captions for ext-anchors to the Grim URL.
    $(".dnd5-grimoire").each(function(idx) {
        this.setAttribute("data-instance-id", ++idx);
        var link = $(this);
        // Insert an external link to the Grimoire page on first hover.
        if (link.find("a").length)
            return;
        link.html(
            $("<a></a>").text(link.text())
            .prop("href", "https:" + grimTextToURL(link.text()))
            .prop("target", "_blank")
        );
    });
});

/* TEMPLATE:GRIMOIRE ENDS */


/* COLUMN-HOVER TABLE ACTUATOR STARTS */

$(function() {

    // Given a jQ pointer to a table cell, get a list of all cells at that pos.
    // Note: ignores rows that have merged cells.
    var getColumnCells = function(cell) {
        var items = [],
            targetPos = cell.index();
        if (parseInt(cell.prop("colspan") || 1, 10) != 1)
            return items;

        cell.closest("table").find("tr").each(function() {
            // Make this work only on rows with no merged cells.
            if (parseInt($(this).find("[colspan]").prop("colspan") || 1, 10) != 1)
                return;
            var row = $(this).find("td:eq(" + targetPos + "), th:eq(" + targetPos + ")"); // either
            row.each(function() {
                items.push($(this));
            });
        });

        return items;
    };

    $("table.columns").on("mouseenter mouseleave", "td, th", function(e) {
        var cell = $(e.target).closest("td, th"),
            vertSiblings = getColumnCells(cell),
            method = e.type == "mouseenter" ? "addClass" : "removeClass";

        vertSiblings.forEach(function(el) { $(el)[method]("hovered"); });
    });
});

/* COLUMN-HOVER TABLE ACTUATOR ENDS */