User:GregU/hotkeys.js

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Documentation for this user script can be added at User:GregU/hotkeys.

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// This defines some control-key shortcuts you can use in text fields.
// IE not supported.  See talk page for documentation.
// by Greg Ubben

// Add some control hotkeys for easily entering right-arrows (→) and other
// characters and phrases in the edit summary, edit box, or other text fields.
// hotkeys[] can be defined to augment the defaults. Type Ctrl-? to list all.

function hotkey(e) {
    if (e && e.ctrlKey && hotkeys[String.fromCharCode( e.charCode )])
    {
        var newtxt = hotkeys[String.fromCharCode( e.charCode )];
        var before = this.value.slice( 0, this.selectionStart );
        var after  = this.value.slice( this.selectionEnd );
        var scroll = this.scrollTop;

        if (newtxt == "MENU") {         // type Ctrl-? for a list
            var menu = "";
            for (var key in hotkeys) {
                var name  = key.toUpperCase().replace(",", "<").replace(".", ">");
                var value = hotkeys[key].replace(/\n/g, "•").slice(0,40);
                if (value && value != newtxt)
                    menu += "\u200E" + name + " \t" + value + "\n";
            }
            alert( menu );
            return false;
        }
        //  hack to not override Ctrl-F, Ctrl-T, etc. in main text area
        //
        if (newtxt.search(/\[\[WP:|\bfix/i) >= 0 && this.id == "wpTextbox1") {
            return true;
        }
        if (newtxt.search(/^\[*\w./) >= 0 && this.id != "wpTextbox1") {
            if (before.search(/[^\s;,]$/) >= 0)  before += "; ";
            if  (after.search(/^[^\s;,]/) >= 0)  newtxt += "; ";
        }
        this.value = before + newtxt + after;
        this.selectionStart = this.selectionEnd = before.length + newtxt.length;
        this.scrollTop = scroll;       // don't lose our position
        return false;
    }
    return true;
}

addOnloadHook( function()
{
    var defaultCtrl = {
        "," : "←",                   // Ctrl <   left arrow
        "." : "→",                   // Ctrl >   right arrow
        "-" : "–",                   // Ctrl -   en dash
        "=" : "—",                   // Ctrl =   em dash
        "7" : "&" + "nbsp;",         // Ctrl &   non-breaking space
        "l" : "link rename",
        "r" : "reverted [[WP:VAND|vandalism]]",
        "s" : "[[WP:STYLE]]",
        "/" : "MENU"                 // special function
    };
    var fields = { wpSummary:0, wpTextbox1:0, wpReason:0, wpUploadDescription:0 };

    if (mw.config.get('wgAction') != "view" || mw.config.get('wgCanonicalSpecialPageName'))
    {
        if (typeof(hotkeys) == 'undefined')  hotkeys = {};
        for (var key in defaultCtrl) {
            if (hotkeys[key] == null)
                hotkeys[key] = defaultCtrl[key];
        }
        for (var field in fields) {
            var f = document.getElementById(field);
            if (f)  f.onkeypress = hotkey;
        }
    }
});