all-in-one org-protocols user script for Chrome based browsers

org-protocols.js

// ==UserScript==
// @name         org-protocols
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Send links or/and selected content into your Emacs via various protocols
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    var keys = {};
    var openedWindow;

    // By pressing Ctrl + Alt + 'key':
    // stores link via `org-protocol://store-link`, which can be inserted by `org-insert-link`
    keys.link = 'K';

    // stores link + title via `org-protocol://store-link`, which can be inserted by `org-insert-link`
    keys.linkTitle = 'G';

    // captures selected text as an org markup via `org-protocol:///capture-html`, needs github.com/alphapapa/org-protocol-capture-html
    keys.html = 'H';                

    // captures link + title via `org-protocol://capture`
    keys.bookmarkTitle = 'B';            

    // captures link + title + selected text as a plain text via `org-protocol://capture`
    keys.bookmarkTitleSelected = 'S';       

    // I need some form of sleep
    function wait(ms){
        var start = new Date().getTime();
        var end = start;
        while(end < start + ms) {
            end = new Date().getTime();
        }
    }

    // deal with parens
    function replace_all(str, find, replace) {
        return str.replace(new RegExp(find, 'g'), replace);
    }

    function escapeIt(text) {
        return replace_all(replace_all(replace_all(encodeURIComponent(text), "[(]", escape("(")),
                                       "[)]", escape(")")),
                           "[']" ,escape("'"));
    }
    // note: it can be hard to create association for protocol in chrome when popup is there just one second
    // for the first time and then after everytime you remove chrome's history, association needs to be confirmed
    // consider to temporarly increase valu passed to wait() function
    window.addEventListener('keyup', function() {
        if (event.ctrlKey && event.altKey && !event.shiftKey) {
            if (keys.link == String.fromCharCode(event.keyCode)) {
                openedWindow = window.open('org-protocol://store-link?url='+ encodeURIComponent(location.href));
                wait(500);
                openedWindow.close();
            } else if (keys.linkTitle == String.fromCharCode(event.keyCode)) {
                openedWindow = window.open('org-protocol://store-link?url=' + encodeURIComponent(location.href) + '\\&title=' + encodeURIComponent(document.title));
                wait(500);
                openedWindow.close();
            } else if (keys.html == String.fromCharCode(event.keyCode)) {
                // you need capture template "w" in your emacs
                openedWindow = window.open('org-protocol:///capture-html?template=w&url=' + encodeURIComponent(location.href) + '&title=' + encodeURIComponent(document.title || "[untitled page]") + '&body=' + encodeURIComponent(function() {
                    var html = "";
                    if (typeof window.getSelection != "undefined") {
                        var sel = window.getSelection();
                        if (sel.rangeCount) {
                            var container = document.createElement("div");
                            for (var i = 0, len = sel.rangeCount; i < len; ++i) {
                                container.appendChild(sel.getRangeAt(i).cloneContents());
                            }
                            html = container.innerHTML;
                        }
                    } else if (typeof document.selection != "undefined") {
                        if (document.selection.type == "Text") {
                            html = document.selection.createRange().htmlText;
                        }
                    }
                    var relToAbs = function(href) {
                        var a = document.createElement("a");
                        a.href = href;
                        var abs = a.protocol + "//" + a.host + a.pathname + a.search + a.hash;
                        a.remove();
                        return abs;
                    };
                    var elementTypes = [
                        ['a', 'href'],
                        ['img', 'src']
                    ];
                    var div = document.createElement('div');
                    div.innerHTML = html;
                    elementTypes.map(function(elementType) {
                        var elements = div.getElementsByTagName(elementType[0]);
                        for (var i = 0; i < elements.length; i++) {
                            elements[i].setAttribute(elementType[1], relToAbs(elements[i].getAttribute(elementType[1])));
                        }
                    });
                    return div.innerHTML;
                }()));
                wait(500);
                openedWindow.close();
            } else if (keys.bookmarkTitle == String.fromCharCode(event.keyCode)) {
                openedWindow = window.open('org-protocol://capture?template=L&url=' + encodeURIComponent(location.href) + '\\&title=' + encodeURIComponent(document.title));
                wait(500);
                openedWindow.close();
            } else if (keys.bookmarkTitleSelected == String.fromCharCode(event.keyCode)) {
                openedWindow = window.open('org-protocol://capture?template=p&url=' + encodeURIComponent(location.href) + '\\&title=' + encodeURIComponent(document.title) + '\\&body=' + escapeIt(window.getSelection().toString()));
                wait(500);
                openedWindow.close();
            }
        }
    });
})();