eBookReaderSwitch/mupdf/source/pdf/js/util.js

800 lines
18 KiB
JavaScript

Error.prototype.toString = function() {
if (this.stackTrace) return this.name + ': ' + this.message + this.stackTrace;
return this.name + ': ' + this.message;
};
// display must be kept in sync with an enum in pdf_form.c
var display = {
visible: 0,
hidden: 1,
noPrint: 2,
noView: 3,
};
var border = {
b: 'beveled',
d: 'dashed',
i: 'inset',
s: 'solid',
u: 'underline',
};
var color = {
transparent: [ 'T' ],
black: [ 'G', 0 ],
white: [ 'G', 1 ],
gray: [ 'G', 0.5 ],
ltGray: [ 'G', 0.75 ],
dkGray: [ 'G', 0.25 ],
red: [ 'RGB', 1, 0, 0 ],
green: [ 'RGB', 0, 1, 0 ],
blue: [ 'RGB', 0, 0, 1 ],
cyan: [ 'CMYK', 1, 0, 0, 0 ],
magenta: [ 'CMYK', 0, 1, 0, 0 ],
yellow: [ 'CMYK', 0, 0, 1, 0 ],
};
color.convert = function (c, colorspace) {
switch (colorspace) {
case 'G':
if (c[0] === 'RGB')
return [ 'G', c[1] * 0.3 + c[2] * 0.59 + c[3] * 0.11 ];
if (c[0] === 'CMYK')
return [ 'CMYK', 1 - Math.min(1, c[1] * 0.3 + c[2] * 0.59 + c[3] * 0.11 + c[4])];
break;
case 'RGB':
if (c[0] === 'G')
return [ 'RGB', c[1], c[1], c[1] ];
if (c[0] === 'CMYK')
return [ 'RGB',
1 - Math.min(1, c[1] + c[4]),
1 - Math.min(1, c[2] + c[4]),
1 - Math.min(1, c[3] + c[4]) ];
break;
case 'CMYK':
if (c[0] === 'G')
return [ 'CMYK', 0, 0, 0, 1 - c[1] ];
if (c[0] === 'RGB')
return [ 'CMYK', 1 - c[1], 1 - c[2], 1 - c[3], 0 ];
break;
}
return c;
}
color.equal = function (a, b) {
var i, n
if (a[0] === 'G')
a = color.convert(a, b[0]);
else
b = color.convert(b, a[0]);
if (a[0] !== b[0])
return false;
switch (a[0]) {
case 'G': n = 1; break;
case 'RGB': n = 3; break;
case 'CMYK': n = 4; break;
default: n = 0; break;
}
for (i = 1; i <= n; ++i)
if (a[i] !== b[i])
return false;
return true;
}
var font = {
Cour: 'Courier',
CourB: 'Courier-Bold',
CourBI: 'Courier-BoldOblique',
CourI: 'Courier-Oblique',
Helv: 'Helvetica',
HelvB: 'Helvetica-Bold',
HelvBI: 'Helvetica-BoldOblique',
HelvI: 'Helvetica-Oblique',
Symbol: 'Symbol',
Times: 'Times-Roman',
TimesB: 'Times-Bold',
TimesBI: 'Times-BoldItalic',
TimesI: 'Times-Italic',
ZapfD: 'ZapfDingbats',
};
var highlight = {
i: 'invert',
n: 'none',
o: 'outline',
p: 'push',
};
var position = {
textOnly: 0,
iconOnly: 1,
iconTextV: 2,
textIconV: 3,
iconTextH: 4,
textIconH: 5,
overlay: 6,
};
var scaleHow = {
proportional: 0,
anamorphic: 1,
};
var scaleWhen = {
always: 0,
never: 1,
tooBig: 2,
tooSmall: 3,
};
var style = {
ch: 'check',
ci: 'circle',
cr: 'cross',
di: 'diamond',
sq: 'square',
st: 'star',
};
var zoomtype = {
fitH: 'FitHeight',
fitP: 'FitPage',
fitV: 'FitVisibleWidth',
fitW: 'FitWidth',
none: 'NoVary',
pref: 'Preferred',
refW: 'ReflowWidth',
};
util.scand = function (fmt, input) {
// This seems to match Acrobat's parsing behavior
return AFParseDateEx(input, fmt);
}
util.printd = function (fmt, date) {
var monthName = [
'January',
'February',
'March',
'April',
'May',
'June',
'July',
'August',
'September',
'October',
'November',
'December'
];
var dayName = [
'Sunday',
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday'
];
if (fmt === 0)
fmt = 'D:yyyymmddHHMMss';
else if (fmt === 1)
fmt = 'yyyy.mm.dd HH:MM:ss';
else if (fmt === 2)
fmt = 'm/d/yy h:MM:ss tt';
if (!date)
date = new Date();
else if (!(date instanceof Date))
date = new Date(date);
var tokens = fmt.match(/(\\.|m+|d+|y+|H+|h+|M+|s+|t+|[^\\mdyHhMst]*)/g);
var out = '';
for (var i = 0; i < tokens.length; ++i) {
var token = tokens[i];
switch (token) {
case 'mmmm': out += monthName[date.getMonth()]; break;
case 'mmm': out += monthName[date.getMonth()].substring(0, 3); break;
case 'mm': out += util.printf('%02d', date.getMonth()+1); break;
case 'm': out += date.getMonth()+1; break;
case 'dddd': out += dayName[date.getDay()]; break;
case 'ddd': out += dayName[date.getDay()].substring(0, 3); break;
case 'dd': out += util.printf('%02d', date.getDate()); break;
case 'd': out += date.getDate(); break;
case 'yyyy': out += date.getFullYear(); break;
case 'yy': out += date.getFullYear() % 100; break;
case 'HH': out += util.printf('%02d', date.getHours()); break;
case 'H': out += date.getHours(); break;
case 'hh': out += util.printf('%02d', (date.getHours()+11)%12+1); break;
case 'h': out += (date.getHours() + 11) % 12 + 1; break;
case 'MM': out += util.printf('%02d', date.getMinutes()); break;
case 'M': out += date.getMinutes(); break;
case 'ss': out += util.printf('%02d', date.getSeconds()); break;
case 's': out += date.getSeconds(); break;
case 'tt': out += date.getHours() < 12 ? 'am' : 'pm'; break;
case 't': out += date.getHours() < 12 ? 'a' : 'p'; break;
default: out += (token[0] == '\\') ? token[1] : token; break;
}
}
return out;
}
util.printx = function (fmt, val) {
function toUpper(str) { return str.toUpperCase(); }
function toLower(str) { return str.toLowerCase(); }
function toSame(str) { return str; }
var convertCase = toSame;
var res = '';
var i, m;
var n = fmt ? fmt.length : 0;
for (i = 0; i < n; ++i) {
switch (fmt.charAt(i)) {
case '\\':
if (++i < n)
res += fmt.charAt(i);
break;
case 'X':
m = val.match(/\w/);
if (m) {
res += convertCase(m[0]);
val = val.replace(/^\W*\w/, '');
}
break;
case 'A':
m = val.match(/[A-Za-z]/);
if (m) {
res += convertCase(m[0]);
val = val.replace(/^[^A-Za-z]*[A-Za-z]/, '');
}
break;
case '9':
m = val.match(/\d/);
if (m) {
res += m[0];
val = val.replace(/^\D*\d/, '');
}
break;
case '*':
res += convertCase(val);
val = '';
break;
case '?':
if (val !== '') {
res += convertCase(val.charAt(0));
val = val.substring(1);
}
break;
case '=':
convertCase = toSame;
break;
case '>':
convertCase = toUpper;
break;
case '<':
convertCase = toLower;
break;
default:
res += convertCase(fmt.charAt(i));
break;
}
}
return res;
}
function AFMergeChange(event) {
var prefix, postfix;
var value = event.value;
if (event.willCommit)
return value;
if (event.selStart >= 0)
prefix = value.substring(0, event.selStart);
else
prefix = '';
if (event.selEnd >= 0 && event.selEnd <= value.length)
postfix = value.substring(event.selEnd, value.length);
else
postfix = '';
return prefix + event.change + postfix;
}
function AFExtractNums(string) {
if (string.charAt(0) == '.' || string.charAt(0) == ',')
string = '0' + string;
return string.match(/\d+/g);
}
function AFMakeNumber(string) {
if (typeof string == 'number')
return string;
if (typeof string != 'string')
return null;
var nums = AFExtractNums(string);
if (!nums)
return null;
var result = nums.join('.');
if (string.indexOf('-.') >= 0)
result = '0.' + result;
if (string.indexOf('-') >= 0)
return -result;
return +result;
}
function AFExtractTime(string) {
var pattern = /\d\d?:\d\d?(:\d\d?)?\s*(am|pm)?/i;
var match = pattern.exec(string);
if (match) {
var prefix = string.substring(0, match.index);
var suffix = string.substring(match.index + match[0].length);
return [ prefix + suffix, match[0] ];
}
return null;
}
function AFParseDateOrder(fmt) {
var order = '';
fmt += 'mdy'; // Default order if any parts are missing.
for (var i = 0; i < fmt.length; i++) {
var c = fmt.charAt(i);
if ((c == 'y' || c == 'm' || c == 'd') && order.indexOf(c) < 0)
order += c;
}
return order;
}
function AFMatchMonth(date) {
var names = ['jan','feb','mar','apr','may','jun','jul','aug','sep','oct','nov','dec'];
var month = date.match(/Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec/i);
if (month)
return names.indexOf(month[0].toLowerCase());
return null;
}
function AFParseTime(string, date) {
if (!date)
date = new Date();
if (!string)
return date;
var nums = AFExtractNums(string);
if (!nums || nums.length < 2 || nums.length > 3)
return null;
var hour = nums[0];
var min = nums[1];
var sec = (nums.length == 3) ? nums[2] : 0;
if (hour < 12 && (/pm/i).test(string))
hour += 12;
if (hour >= 12 && (/am/i).test(string))
hour -= 12;
date.setHours(hour, min, sec);
if (date.getHours() != hour || date.getMinutes() != min || date.getSeconds() != sec)
return null;
return date;
}
function AFMakeDate(out, year, month, date, time)
{
if (year < 50)
year += 2000;
if (year < 100)
year += 1900;
out.setFullYear(year, month, date);
if (out.getFullYear() != year || out.getMonth() != month || out.getDate() != date)
return null;
if (time)
out = AFParseTime(time, out);
else
out.setHours(0, 0, 0);
return out;
}
function AFParseDateEx(string, fmt) {
var out = new Date();
var year = out.getFullYear();
var month;
var date;
var i;
out.setHours(12, 0, 0);
var order = AFParseDateOrder(fmt);
var time = AFExtractTime(string);
if (time) {
string = time[0];
time = time[1];
}
var nums = AFExtractNums(string);
if (!nums)
return null;
if (nums.length == 3) {
year = nums[order.indexOf('y')];
month = nums[order.indexOf('m')];
date = nums[order.indexOf('d')];
return AFMakeDate(out, year, month-1, date, time);
}
month = AFMatchMonth(string);
if (nums.length == 2) {
// We have a textual month.
if (month) {
if (order.indexOf('y') < order.indexOf('d')) {
year = nums[0];
date = nums[1];
} else {
year = nums[1];
date = nums[0];
}
}
// Year before date: set year and month.
else if (order.indexOf('y') < order.indexOf('d')) {
if (order.indexOf('y') < order.indexOf('m')) {
year = nums[0];
month = nums[1];
} else {
year = nums[1];
month = nums[0];
}
}
// Date before year: set date and month.
else {
if (order.indexOf('d') < order.indexOf('m')) {
date = nums[0];
month = nums[1];
} else {
date = nums[1];
month = nums[0];
}
}
return AFMakeDate(out, year, month-1, date, time);
}
if (nums.length == 1) {
if (month) {
if (order.indexOf('y') < order.indexOf('d')) {
year = nums[0];
date = 1;
} else {
date = nums[0];
}
return AFMakeDate(out, year, month-1, date, time);
}
// Only one number: must match format exactly!
if (string.length == fmt.length) {
year = month = date = '';
for (i = 0; i < fmt.length; ++i) {
switch (fmt.charAt(i)) {
case '\\': ++i; break;
case 'y': year += string.charAt(i); break;
case 'm': month += string.charAt(i); break;
case 'd': date += string.charAt(i); break;
}
}
return AFMakeDate(out, year, month-1, date, time);
}
}
return null;
}
var AFDate_oldFormats = [
'm/d',
'm/d/yy',
'mm/dd/yy',
'mm/yy',
'd-mmm',
'd-mmm-yy',
'dd-mm-yy',
'yy-mm-dd',
'mmm-yy',
'mmmm-yy',
'mmm d, yyyy',
'mmmm d, yyyy',
'm/d/yy h:MM tt',
'm/d/yy HH:MM'
];
function AFDate_KeystrokeEx(fmt) {
if (event.willCommit && !AFParseDateEx(event.value, fmt)) {
app.alert('The date/time entered ('+event.value+') does not match the format ('+fmt+') of the field [ '+event.target.name+' ]');
event.rc = false;
}
}
function AFDate_Keystroke(index) {
AFDate_KeystrokeEx(AFDate_oldFormats[index]);
}
function AFDate_FormatEx(fmt) {
var d = AFParseDateEx(event.value, fmt);
event.value = d ? util.printd(fmt, d) : '';
}
function AFDate_Format(index) {
AFDate_FormatEx(AFDate_oldFormats[index]);
}
function AFTime_Keystroke(index) {
if (event.willCommit && !AFParseTime(event.value, null)) {
app.alert('The value entered ('+event.value+') does not match the format of the field [ '+event.target.name+' ]');
event.rc = false;
}
}
function AFTime_FormatEx(fmt) {
var d = AFParseTime(event.value, null);
event.value = d ? util.printd(fmt, d) : '';
}
function AFTime_Format(index) {
var formats = [ 'HH:MM', 'h:MM tt', 'HH:MM:ss', 'h:MM:ss tt' ];
AFTime_FormatEx(formats[index]);
}
function AFSpecial_KeystrokeEx(fmt) {
function toUpper(str) { return str.toUpperCase(); }
function toLower(str) { return str.toLowerCase(); }
function toSame(str) { return str; }
var convertCase = toSame;
var val = event.value;
var res = '';
var i = 0;
var m;
var length = fmt ? fmt.length : 0;
while (i < length) {
switch (fmt.charAt(i)) {
case '\\':
i++;
if (i >= length)
break;
res += fmt.charAt(i);
if (val && val.charAt(0) === fmt.charAt(i))
val = val.substring(1);
break;
case 'X':
m = val.match(/^\w/);
if (!m) {
event.rc = false;
break;
}
res += convertCase(m[0]);
val = val.substring(1);
break;
case 'A':
m = val.match(/^[A-Za-z]/);
if (!m) {
event.rc = false;
break;
}
res += convertCase(m[0]);
val = val.substring(1);
break;
case '9':
m = val.match(/^\d/);
if (!m) {
event.rc = false;
break;
}
res += m[0];
val = val.substring(1);
break;
case '*':
res += convertCase(val);
val = '';
break;
case '?':
if (val === '') {
event.rc = false;
break;
}
res += convertCase(val.charAt(0));
val = val.substring(1);
break;
case '=':
convertCase = toSame;
break;
case '>':
convertCase = toUpper;
break;
case '<':
convertCase = toLower;
break;
default:
res += fmt.charAt(i);
if (val && val.charAt(0) === fmt.charAt(i))
val = val.substring(1);
break;
}
i++;
}
// If there are characters left over in the value, it's not a match.
if (val.length > 0)
event.rc = false;
if (event.rc)
event.value = res;
else if (event.willCommit)
app.alert('The value entered ('+event.value+') does not match the format of the field [ '+event.target.name+' ] should be '+fmt);
}
function AFSpecial_Keystroke(index) {
if (event.willCommit) {
switch (index) {
case 0:
if (!event.value.match(/^\d{5}$/))
event.rc = false;
break;
case 1:
if (!event.value.match(/^\d{5}[-. ]?\d{4}$/))
event.rc = false;
break;
case 2:
if (!event.value.match(/^((\(\d{3}\)|\d{3})[-. ]?)?\d{3}[-. ]?\d{4}$/))
event.rc = false;
break;
case 3:
if (!event.value.match(/^\d{3}[-. ]?\d{2}[-. ]?\d{4}$/))
event.rc = false;
break;
}
if (!event.rc)
app.alert('The value entered ('+event.value+') does not match the format of the field [ '+event.target.name+' ]');
}
}
function AFSpecial_Format(index) {
var res;
switch (index) {
case 0:
res = util.printx('99999', event.value);
break;
case 1:
res = util.printx('99999-9999', event.value);
break;
case 2:
res = util.printx('9999999999', event.value);
res = util.printx(res.length >= 10 ? '(999) 999-9999' : '999-9999', event.value);
break;
case 3:
res = util.printx('999-99-9999', event.value);
break;
}
event.value = res ? res : '';
}
function AFNumber_Keystroke(nDec, sepStyle, negStyle, currStyle, strCurrency, bCurrencyPrepend) {
if (sepStyle & 2) {
if (!event.value.match(/^[+-]?\d*[,.]?\d*$/))
event.rc = false;
} else {
if (!event.value.match(/^[+-]?\d*\.?\d*$/))
event.rc = false;
}
if (event.willCommit) {
if (!event.value.match(/\d/))
event.rc = false;
if (!event.rc)
app.alert('The value entered ('+event.value+') does not match the format of the field [ '+event.target.name+' ]');
}
}
function AFNumber_Format(nDec, sepStyle, negStyle, currStyle, strCurrency, bCurrencyPrepend) {
var value = AFMakeNumber(event.value);
var fmt = '%,' + sepStyle + '.' + nDec + 'f';
if (value == null) {
event.value = '';
return;
}
if (bCurrencyPrepend)
fmt = strCurrency + fmt;
else
fmt = fmt + strCurrency;
if (value < 0) {
/* negStyle: 0=MinusBlack, 1=Red, 2=ParensBlack, 3=ParensRed */
value = Math.abs(value);
if (negStyle == 2 || negStyle == 3)
fmt = '(' + fmt + ')';
else if (negStyle == 0)
fmt = '-' + fmt;
if (negStyle == 1 || negStyle == 3)
event.target.textColor = color.red;
else
event.target.textColor = color.black;
} else {
event.target.textColor = color.black;
}
event.value = util.printf(fmt, value);
}
function AFPercent_Keystroke(nDec, sepStyle) {
AFNumber_Keystroke(nDec, sepStyle, 0, 0, '', true);
}
function AFPercent_Format(nDec, sepStyle) {
var val = AFMakeNumber(event.value);
if (val == null) {
event.value = '';
return;
}
event.value = (val * 100) + '';
AFNumber_Format(nDec, sepStyle, 0, 0, '%', false);
}
function AFSimple_Calculate(op, list) {
var i, res;
switch (op) {
case 'SUM': res = 0; break;
case 'PRD': res = 1; break;
case 'AVG': res = 0; break;
}
if (typeof list === 'string')
list = list.split(/ *, */);
for (i = 0; i < list.length; i++) {
var field = this.getField(list[i]);
var value = Number(field.value);
switch (op) {
case 'SUM': res += value; break;
case 'PRD': res *= value; break;
case 'AVG': res += value; break;
case 'MIN': if (i === 0 || value < res) res = value; break;
case 'MAX': if (i === 0 || value > res) res = value; break;
}
}
if (op === 'AVG')
res /= list.length;
event.value = res;
}
function AFRange_Validate(lowerCheck, lowerLimit, upperCheck, upperLimit) {
if (upperCheck && event.value > upperLimit)
event.rc = false;
if (lowerCheck && event.value < lowerLimit)
event.rc = false;
if (!event.rc) {
if (lowerCheck && upperCheck)
app.alert(util.printf('The entered value ('+event.value+') must be greater than or equal to %s and less than or equal to %s', lowerLimit, upperLimit));
else if (lowerCheck)
app.alert(util.printf('The entered value ('+event.value+') must be greater than or equal to %s', lowerLimit));
else
app.alert(util.printf('The entered value ('+event.value+') must be less than or equal to %s', upperLimit));
}
}
/* Compatibility ECMAScript functions */
String.prototype.substr = function (start, length) {
if (start < 0)
start = this.length + start;
if (length === undefined)
return this.substring(start, this.length);
return this.substring(start, start + length);
}
Date.prototype.getYear = Date.prototype.getFullYear;
Date.prototype.setYear = Date.prototype.setFullYear;
Date.prototype.toGMTString = Date.prototype.toUTCString;
console.clear = function() { console.println('--- clear console ---\n'); };
console.show = function(){};
console.hide = function(){};
app.plugIns = [];
app.viewerType = 'Reader';
app.language = 'ENU';
app.viewerVersion = NaN;
app.execDialog = function () { return 'cancel'; }