shared.js

var satoshi = parseInt(100000000); //One satoshi
var showInvBtn = false;
var show_adv = false;
var adv_rule;
var our_address = '1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq'; //Address for fees and what not
var open_pk; //Passed to escrow window when redeeming a tx
var symbol_btc; //BTC Currency Symbol object
var symbol_local; //Users local currency object
var symbol; //Active currency object
var root = '/';
var resource = '/Resources/';
var decimals = 8;

//Ignore Console
if (!window.console) {
    var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
        "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];

    window.console = {};
    for (var i = 0; i < names.length; ++i)
        window.console[names[i]] = function() {}
}


function getWebSocketURL() {
    return "ws://api.blockchain.info:8335/inv";
}

function Transaction () { };
function Block () { };

function BlockFromJSON(json) {
    var block = new Block();

    block.hash = json.hash;
    block.time = json.time;
    block.blockIndex = json.block_index;
    block.height = json.height;
    block.txIndex = json.txIndexes;
    block.totalBTCSent = json.totalBTCSent;
    block.foundBy = json.foundBy;
    block.size = json.size;

    return block;
}

function TransactionFromJSON(json) {

    var tx = new Transaction();

    tx.hash = json.hash;
    tx.size = json.size;
    tx.txIndex = json.tx_index;
    tx.time = json.time;
    tx.inputs = json.inputs;
    tx.out = json.out;
    tx.blockIndex = json.block_index;
    tx.result = json.result;
    tx.blockHeight = json.block_height;
    tx.balance = json.balance;
    tx.double_spend = json.double_spend;

    return tx;
}

Transaction.prototype.setConfirmations = function(n_confirmations) {
    this.confirmations = n_confirmations;
};

function padStr(i) {
    return (i < 10) ? "0" + i : "" + i;
};

Date.prototype.sameDayAs = function(pDate){
    return ((this.getFullYear()==pDate.getFullYear())&&(this.getMonth()==pDate.getMonth())&&(this.getDate()==pDate.getDate()));
}

function dateToString(d) {
    if (d.sameDayAs(new Date())) {
        return 'Today ' + padStr(d.getHours()) + ':' + padStr(d.getMinutes()) + ':' + padStr(d.getSeconds());
    }  else {
        return padStr(d.getFullYear()) + '-' + padStr(1 + d.getMonth()) + '-' + padStr(d.getDate()) + ' ' + padStr(d.getHours()) + ':' + padStr(d.getMinutes()) + ':' + padStr(d.getSeconds());
    }
};

function formatBTC(value) {
    if (value == null)
        return '0.00';

    var neg = '';
    if (value < 0) {
        value = -value;
        neg = '-';
    }

    value = ''+value;

    var integerPart = value.length > 8 ? value.substr(0, value.length-8) : '0';
    var decimalPart = value.length > 8 ? value.substr(value.length-8) : value;

    if (decimalPart != null) {
        while (decimalPart.length < 8) decimalPart = "0"+decimalPart;
        decimalPart = decimalPart.replace(/0*$/, '');
        while (decimalPart.length < 2) decimalPart += "0";

        if (decimals < 8)
            return neg + integerPart + parseFloat('0.'+decimalPart).toFixed(decimals).substr(1);
        else
            return neg + integerPart+"."+decimalPart;
    }

    return neg + integerPart;
}


function convert(x, conversion) {
    return (x / conversion).toFixed(2).toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
}

function formatSymbol(x, symbol) {
    var str;

    if (symbol.code != 'BTC') {
        str = symbol.symbol + ' ' +  convert(x, symbol.conversion);
    } else {
        str = formatBTC(x) + ' ' + symbol.symbol;
    }

    return str;
}

function formatMoney(x, span) {
    var str = formatSymbol(x, symbol);

    if (span) {
        str = '<span data-c="'+x+'">'+str+'</span>';
    }

    return str;
}

function formatAddr(addr, myAddresses, addresses_book) {
    var myAddr = null;
    if (myAddresses != null)
        myAddr = myAddresses[addr];

    if (myAddr != null) {
        if (myAddr.label != null)
            return myAddr.label;
        else
            return addr;
    } else {
        if (addr == our_address)
            return 'Blockchain.info';
        else if (addresses_book != null && addresses_book[addr] != null)
            return '<a target="new" href="'+root+'address/'+addr+'">'+addresses_book[addr]+'</a>';
        else
            return '<a target="new" href="'+root+'address/'+addr+'">'+addr+'</a>';
    }
}

function formatOutput(output, myAddresses, addresses_book) {

    //total_fees -= output.value;
    var str = '';

    if (output.type == 0) {
    } else if (output.type == 1 || output.type == 2 || output.type == 3) {
        str = '(<font color="red">Escrow</font> ' + output.type + ' of ';
    } else {
        str = '<font color="red">Strange</font> ';
    }

    if (output.addr != null)
        str += formatAddr(output.addr, myAddresses, addresses_book);

    if (output.addr2 != null)
        str += ', ' + formatAddr(output.addr2, myAddresses, addresses_book);

    if (output.addr3 != null)
        str += ', ' + formatAddr(output.addr3, myAddresses, addresses_book);

    if (output.type == 1 || output.type == 2 || output.type == 3) {
        str += ')';
    }

    str += '<br />';

    return str;
}

function openEscrow(txIndex, escrow_n, priv) {

    if (priv != null) {
        getSecondPassword(function() {
            open_pk = new Bitcoin.ECKey(decodePK(priv));

            window.open(''+root+'escrow/'+txIndex+'/'+escrow_n);
        });
    } else {
        window.open(''+root+'escrow/'+txIndex+'/'+escrow_n);
    }
}

Transaction.prototype.getHTML = function(myAddresses, addresses_book) {

    var result = this.result;

    var html = '<div id="tx-'+this.txIndex+'"><table class="table table-striped" cellpadding="0" cellspacing="0" style="padding:0px;float:left;margin:0px;margin-top:10px;"><tr><th colspan="4"><div class="hash-link"><a target="new" href="'+root+'tx-index/'+this.txIndex+'/'+this.hash+'">'+this.hash+'</a></div> <span style="float:right"><span class="can-hide"><b>';

    if (this.time > 0) {
        var date = new Date(this.time * 1000);

        html += dateToString(date);
    }

    var tclass = '';
    if (result < 0)
        tclass = 'class="txtd hidden-phone"';
    else
        tclass = 'class="txtd"';

    html += '</b></span></th></tr><tr><td '+ tclass +'>';

    if (this.inputs.length > 0) {
        for (var i = 0; i < this.inputs.length; i++) {
            input = this.inputs[i];

            if (input.prev_out == null || input.prev_out.addr == null) {
                html += 'No Input (Newly Generated Coins)<br />';
            } else {
                html += formatOutput(input.prev_out, myAddresses, addresses_book);
            }
        }
    } else {
        html += 'No inputs, transaction probably sent from self.<br />';
    }

    html += '</td><td width="48px" class="hidden-phone" style="padding:4px;text-align:center;vertical-align:middle;">';

    if (result == null) {
        result = 0;
        for (var i = 0; i < this.out.length; i++) {
            result += this.out[i].value;
        }
    }

    var button_class;
    if (result == null || result > 0) {
        button_class = 'btn btn-success';
        html += '<img src="'+resource+'arrow_right_green.png" />';
    } else if (result < 0) {
        button_class = 'btn btn-danger';
        html += '<img src="'+resource+'arrow_right_red.png" />';
    } else  {
        button_class = 'btn';
        html += '&nbsp;';
    }

    var tclass = '';
    if (result >= 0)
        tclass = 'class="txtd hidden-phone"';
    else
        tclass = 'class="txtd"';

    html += '</td><td width="360px" '+tclass+'>';

    var escrow_n = null;
    var escrow_addr = null;
    for (var i = 0; i < this.out.length; i++) {
        var out = this.out[i];
        if (out.type > 0 && !out.spent && escrow_n == null) {
            var myAddr = myAddresses[out.addr];

            if (myAddr == null)
                myAddr = myAddresses[out.addr2];

            if (myAddr == null)
                myAddr = myAddresses[out.addr3];

            if (myAddr != null && myAddr.priv != null) {
                escrow_n = i;
                escrow_addr = myAddr;
            }
        }

        html += formatOutput(out, myAddresses, addresses_book);
    }

    html += '</td><td width="140px" style="text-align:right" class="txtd">';

    for (var i = 0; i < this.out.length; i++) {
        output = this.out[i];
        html += '<span class="hidden-phone">' + formatMoney(output.value, true) +'</span><br />';
    }

    html += '</td></tr></table><span style="float:right;padding-bottom:30px;clear:both;">';

    if (this.confirmations == null) {
        html += '<button style="display:none"></button> ';
    } else if (this.confirmations == 0) {
        html += '<button class="btn btn-danger">Unconfirmed Transaction!</button> ';
    } else if (this.confirmations > 0) {
        html += '<button class="btn btn-primary">' + this.confirmations + ' Confirmations</button> ';
    }

    html += '<button class="'+button_class+'" onclick="toggleSymbol()">' + formatMoney(result, true) + '</button>';

    if (this.double_spend == true) {
        html += '<button class="btn btn-danger">Double Spend</button> ';
    }

    //Only show for My Wallet
    if (myAddresses != null && !offline) {
        if (escrow_n != null && this.confirmations != 0) {

            var priv = '';
            if (escrow_addr != null)
                priv = escrow_addr.priv;

            html += '<button class="btn btn-info" onclick="openEscrow('+this.txIndex+', '+escrow_n+', \''+priv+'\')">Redeem / Release</button>';
        }

        if (this.confirmations == 0) {
            html += '<button class="btn" style="padding-top:4px;padding-bottom:4px;padding-left:7px;padding-right:7px;margin:5px" onclick="showInventoryModal(\''+this.hash+'\')"><img src="'+resource+'network.png" /></button> ';
        }
    }

    html += '</span></div>';

    return html;
};

function goToWallet(addr) {

    if (localStorage) {
        var guid = localStorage.getItem('guid');

        if (guid != null) {
            if (addr == null) {
                window.location='https://blockchain.info/wallet/'+guid;
            } else {
                window.location='https://blockchain.info/wallet/'+guid+'#newaddr|'+addr;
            }

            return;
        }
    }

    if (addr == null) {
        window.location='https://blockchain.info/wallet';
    } else {
        window.location='https://blockchain.info/wallet/new#newaddr|'+addr;
    }
}

function toggleAdv() {
    setAdv(!show_adv);
}

function setAdv(isOn) {
    show_adv = isOn;

    if (adv_rule != null) {
        adv_rule.remove();
    }

    if (show_adv) {
        adv_rule = $("<style type='text/css'> .adv{display: inherit;} .basic{display: none;} </style>").appendTo("head");

        $('a[class=show_adv]').text('Show Basic');
    } else {
        adv_rule = $("<style type='text/css'> .adv{display: none;} .basic{display: inherit;} </style>").appendTo("head");

        $('a[class=show_adv]').text('Show Advanced');
    }
}

function selectOption(select_id, option_val) {
    $('#'+select_id+' option:selected').removeAttr('selected');
    $('#'+select_id+' option[value='+option_val+']').attr('selected','selected');
}

function calcMoney() {
    $('span[data-c]').each(function(index) {
        $(this).text(formatMoney($(this).attr('data-c')));
    });
}

function toggleSymbol() {
    if (symbol === symbol_btc) {
        symbol = symbol_local;
        SetCookie('local', 'true');
    } else {
        symbol = symbol_btc;
        SetCookie('local', 'false');
    }

    selectOption('currencies', symbol.code);

    calcMoney();
}

function playSound(id) {
    try {
        $('#sound').remove();

        if (document.hasFocus) {
            $('body').append('<embed id="sound" src="'+resource+id+'.wav" autostart="true" hidden="true" loop="false">');
        }
    } catch (e) { }
};

function setupToggle() {
    $('[class=show_adv]').unbind().click(function() {
        toggleAdv();
    });
}

$(document).ready(function() {
    symbol_btc = $.parseJSON($('#symbol-btc').text());
    symbol_local = $.parseJSON($('#symbol-local').text());

    if (getCookie('local') == 'true') {
        symbol = symbol_local;
    } else {
        symbol = symbol_btc;
    }

    show_adv = getCookie('show_adv');

    try {
        $('#currencies').change(function() {
            var val = $(this).val();

            if (symbol == null || val != symbol.symbol) {

                if (symbol_local != null && val == symbol_local.code) {
                    toggleSymbol();
                } else if (symbol_btc != null && val == symbol_btc.code) {
                    toggleSymbol();
                } else {
                    SetCookie('currency', val);
                    SetCookie('local', 'true');
                    location.reload();
                }
            }
        });

        $('.cb').click(function() {
            toggleSymbol();
        });

        setupToggle();

        setAdv(show_adv);
    } catch (e) {}

    registerURIHandler();
});

function registerURIHandler() {
    if (navigator && getCookie('protoreg') == null) {
        try {
            navigator.registerProtocolHandler("bitcoin",
                window.location.protocol + '//' + window.location.hostname + "/uri?uri=%s",
                "Blockchain.info");

            setCooke('protoreg', true);
        } catch(e) {
            console.log(e);
        }
    }
}

var titleInterval = null;
var titleStart;
var titleOldTitle;

function flashTitle(msg, til) {
    if (til == null) til = 10000;

    function stop() {
        clearInterval(titleInterval);
        document.title = titleOldTitle;
        titleInterval = null;
    }

    if (titleInterval != null)
        stop();

    titleOldTitle = document.title;
    titleStart = new Date().getTime();

    titleInterval = setInterval(function(){
        if (document.title == titleOldTitle)
            document.title = msg;
        else
            document.title = titleOldTitle;

        if (new Date().getTime() - titleStart > til)
            stop();
    }, 750);
}

//Async load a script, at the moment this is only jquery.qrcode.js
function loadScript(src, success, error) {
    if ($('script[src="'+src+'"]').length > 0) {
        success();
        return;
    }

    var error_fired = false;
    var s = document.createElement('script');
    s.type = "text/javascript";
    s.async = true;
    s.src = src;
    s.addEventListener('error', function(e){ error_fired = true;  if (error) error('Error Loading Script. Are You Offline?'); }, false);
    s.addEventListener('load', function (e) { if (error_fired) return; success(); }, false);
    var head = document.getElementsByTagName('head')[0];
    head.appendChild(s);
}

function SetCookie(key, value) {
    document.cookie = key + "=" + encodeURI(value.toString()) + '; path=/';
}

function getCookie(c_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(c_name + "=");
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1;
            c_end = document.cookie.indexOf(";", c_start);
            if (c_end == -1) c_end = document.cookie.length;
            return decodeURI(document.cookie.substring(c_start, c_end));
        }
    }
    return "";
}