Event Merge for Google Calendar™ (by @imightbeAmy)

Script that visually merges the same event on multiple Google Calendars into one event.
当前为 2015-05-18 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name        Event Merge for Google Calendar™ (by @imightbeAmy)
// @namespace   gcal-multical-event-merge
// @include     https://www.google.com/calendar/*
// @include     http://www.google.com/calendar/*
// @require     https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @version     1
// @grant       none
// @description Script that visually merges the same event on multiple Google Calendars into one event.
// ==/UserScript==
 
'use strict';
 
function EventMerger(key_function, clean_up_function) {
    this.makeKey = key_function;
    this.cleanUp = clean_up_function;
}
 
EventMerger.prototype = {
    getEventSets: function ($events) {
        var event_sets = {},
            makeKey = this.makeKey;
        $events.each(function () {
            var $event = $(this),
                key = makeKey($event).replace(/\s/g, '');
            event_sets[key] = event_sets[key] || [];
            event_sets[key].push($event);
        });
        return event_sets;
    },
    makeAltTextColors: function ($element, colors) {
        $element.prepend(" ");
        $.each(colors.reverse(), function (i, color) {
            $element.prepend($("<span>")
                .css({
                    'background-color': color,
                    'width': '4px',
                    'height': '12px',
                    'display': 'inline-block'
                }));
        });
    },
    makeStripes: function ($element, colors) {
        var gradient = "repeating-linear-gradient( 45deg,",
            pos = 0;
        $.each(colors, function (i, color) {
            gradient += color + " " + pos + "px,";
            pos += 10;
            gradient += color + " " + pos + "px,";
        });
        gradient = gradient.slice(0, -1);
        gradient += ")";
        $element.css('background-image', gradient);
    },
    mergeEvents: function (name, event_set) {
        if (event_set.length > 1) {
 
            var background = $(event_set[0]).css('background-color');
            // If the background is trasparent, use the text color
            var style_type = background.indexOf("rgba") == -1 ?
                        'background-color' : 'color';
 
            var colors = $.map(event_set, function (event) {
                return $(event).css(style_type);
            });
 
            var keep = event_set.shift();
            $(event_set).each(function () {
                $(this).parent().remove();
            });
 
            if (style_type == 'background-color') {
                this.makeStripes(keep, colors);
            } else {
                this.makeAltTextColors(keep, colors);
            }
            this.cleanUp && this.cleanUp(keep);
        }
    },
    mergeSets: function ($events) {
        var sets = this.getEventSets($events);
        $.each(sets, $.proxy(this.mergeEvents, this));
    }
};
 
/*****************************************************************************/
 
// merge timed events in week view
 
function weekTimedEventKey($event) {
    var event_name = $event.find('dd span').text(),
        event_time = $event.find('dt').text(),
        col = $event.parents('.tg-col-eventwrapper').attr('id');
    return event_name + event_time + col;
}
 
function tableEventKey($event) {
    var event_name = $event.text(),
        $td = $event.parents('td'),
        days = $td.attr("colspan") || 1,
        col = $td.position().left;
    return event_name + ":" + col + ":" + days;
}
 
function monthAllDayEventKey($event) {
    var row = $event.parents('.month-row').index();
 
    return tableEventKey($event) + ":" + row;
}
 
function monthTimedEventKey($event) {
    var time = $event.find('.te-t').text();
    return monthAllDayEventKey($event) + time;
}
 
function cleanUp($event) {
    var chip = $event.parents('.chip'),
        left = Number(chip[0].style.left.replace(/%/g, ''));
    chip.css('width', 100 - (isNaN(left) ? 0 : left) + "%");
}
 
var weekTimed = new EventMerger(weekTimedEventKey, cleanUp),
    weekAllDay = new EventMerger(tableEventKey),
    monthTimed = new EventMerger(monthTimedEventKey),
    monthAllDay = new EventMerger(monthAllDayEventKey);
 
var merging_main = false;
$(document).on("DOMNodeInserted", "#gridcontainer", function () {
    if (!merging_main) {
        merging_main = true;
        var grid_container = $(this);
        weekTimed.mergeSets(grid_container.find('dl'));
        weekAllDay.mergeSets(grid_container.find(".wk-weektop .rb-n"));
        monthTimed.mergeSets(grid_container.find(".te"));
        monthAllDay.mergeSets(grid_container.find(".mv-event-container .rb-n"));
        merging_main = false;
    }
});
 
var merging_find_time = false;
$(document).on("DOMNodeInserted", "#scTgTable", function (e) {
    if (!merging_find_time) {
        merging_find_time = true;
        var find_time_container = $(this);
        weekTimed.mergeSets(find_time_container.find('dl'));
        weekAllDay.mergeSets(find_time_container.find(".rb-n"));
        merging_find_time = false;
    }
});
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