382 lines
14 KiB
JavaScript
382 lines
14 KiB
JavaScript
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(function() {
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var instance = openerp;
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openerp.web.formats = {};
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var _t = instance.web._t;
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/**
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* Intersperses ``separator`` in ``str`` at the positions indicated by
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* ``indices``.
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*
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* ``indices`` is an array of relative offsets (from the previous insertion
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* position, starting from the end of the string) at which to insert
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* ``separator``.
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*
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* There are two special values:
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*
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* ``-1``
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* indicates the insertion should end now
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* ``0``
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* indicates that the previous section pattern should be repeated (until all
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* of ``str`` is consumed)
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*
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* @param {String} str
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* @param {Array<Number>} indices
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* @param {String} separator
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* @returns {String}
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*/
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instance.web.intersperse = function (str, indices, separator) {
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separator = separator || '';
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var result = [], last = str.length;
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for(var i=0; i<indices.length; ++i) {
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var section = indices[i];
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if (section === -1 || last <= 0) {
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// Done with string, or -1 (stops formatting string)
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break;
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} else if(section === 0 && i === 0) {
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// repeats previous section, which there is none => stop
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break;
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} else if (section === 0) {
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// repeat previous section forever
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//noinspection AssignmentToForLoopParameterJS
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section = indices[--i];
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}
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result.push(str.substring(last-section, last));
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last -= section;
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}
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var s = str.substring(0, last);
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if (s) { result.push(s); }
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return result.reverse().join(separator);
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};
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/**
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* Insert "thousands" separators in the provided number (which is actually
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* a string)
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*
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* @param {String} num
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* @returns {String}
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*/
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instance.web.insert_thousand_seps = function (num) {
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var negative = num[0] === '-';
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num = (negative ? num.slice(1) : num);
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return (negative ? '-' : '') + instance.web.intersperse(
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num, _t.database.parameters.grouping, _t.database.parameters.thousands_sep);
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};
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/**
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* removes literal (non-format) text from a date or time pattern, as datejs can
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* not deal with literal text in format strings (whatever the format), whereas
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* strftime allows for literal characters
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*
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* @param {String} value original format
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*/
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instance.web.strip_raw_chars = function (value) {
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var isletter = /[a-zA-Z]/, output = [];
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for(var index=0; index < value.length; ++index) {
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var character = value[index];
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if(isletter.test(character) && (index === 0 || value[index-1] !== '%')) {
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continue;
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}
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output.push(character);
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}
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return output.join('');
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};
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var normalize_format = function (format) {
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return Date.normalizeFormat(instance.web.strip_raw_chars(format));
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};
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/**
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* Check with a scary heuristic if the value is a bin_size or not.
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* If not, compute an approximate size out of the base64 encoded string.
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*
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* @param {String} value original format
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*/
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instance.web.binary_to_binsize = function (value) {
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if (!value) {
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return instance.web.human_size(0);
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}
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if (value.substr(0, 10).indexOf(' ') == -1) {
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// Computing approximate size out of base64 encoded string
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// http://en.wikipedia.org/wiki/Base64#MIME
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return instance.web.human_size(value.length / 1.37);
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} else {
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// already bin_size
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return value;
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}
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};
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/**
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* Returns a human readable size
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*
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* @param {Number} numner of bytes
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*/
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instance.web.human_size = function(size) {
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var units = _t("Bytes,Kb,Mb,Gb,Tb,Pb,Eb,Zb,Yb").split(',');
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var i = 0;
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while (size >= 1024) {
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size /= 1024;
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++i;
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}
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return size.toFixed(2) + ' ' + units[i];
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};
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/**
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* Formats a single atomic value based on a field descriptor
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*
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* @param {Object} value read from OpenERP
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* @param {Object} descriptor union of orm field and view field
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* @param {Object} [descriptor.widget] widget to use to display the value
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* @param {Object} descriptor.type fallback if no widget is provided, or if the provided widget is unknown
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* @param {Object} [descriptor.digits] used for the formatting of floats
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* @param {String} [value_if_empty=''] returned if the ``value`` argument is considered empty
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*/
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instance.web.format_value = function (value, descriptor, value_if_empty) {
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// If NaN value, display as with a `false` (empty cell)
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if (typeof value === 'number' && isNaN(value)) {
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value = false;
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}
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//noinspection FallthroughInSwitchStatementJS
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switch (value) {
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case '':
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if (descriptor.type === 'char' || descriptor.type === 'text') {
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return '';
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}
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console.warn('Field', descriptor, 'had an empty string as value, treating as false...');
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return value_if_empty === undefined ? '' : value_if_empty;
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case false:
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case undefined:
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case Infinity:
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case -Infinity:
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return value_if_empty === undefined ? '' : value_if_empty;
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}
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var l10n = _t.database.parameters;
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switch (descriptor.widget || descriptor.type || (descriptor.field && descriptor.field.type)) {
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case 'id':
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return value.toString();
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case 'integer':
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return instance.web.insert_thousand_seps(
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_.str.sprintf('%d', value));
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case 'float':
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var digits = descriptor.digits ? descriptor.digits : [69,2];
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digits = typeof digits === "string" ? py.eval(digits) : digits;
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var precision = digits[1];
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var formatted = _.str.sprintf('%.' + precision + 'f', value).split('.');
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formatted[0] = instance.web.insert_thousand_seps(formatted[0]);
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return formatted.join(l10n.decimal_point);
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case 'float_time':
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var pattern = '%02d:%02d';
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if (value < 0) {
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value = Math.abs(value);
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pattern = '-' + pattern;
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}
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var hour = Math.floor(value);
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var min = Math.round((value % 1) * 60);
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if (min == 60){
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min = 0;
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hour = hour + 1;
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}
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return _.str.sprintf(pattern, hour, min);
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case 'many2one':
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// name_get value format
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return value[1] ? value[1].split("\n")[0] : value[1];
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case 'one2many':
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case 'many2many':
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if (typeof value === 'string') {
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return value;
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}
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return _.str.sprintf(_t("(%d records)"), value.length);
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case 'datetime':
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if (typeof(value) == "string")
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value = instance.web.auto_str_to_date(value);
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return value.toString(normalize_format(l10n.date_format)
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+ ' ' + normalize_format(l10n.time_format));
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case 'date':
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if (typeof(value) == "string")
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value = instance.web.auto_str_to_date(value);
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return value.toString(normalize_format(l10n.date_format));
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case 'time':
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if (typeof(value) == "string")
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value = instance.web.auto_str_to_date(value);
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return value.toString(normalize_format(l10n.time_format));
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case 'selection': case 'statusbar':
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// Each choice is [value, label]
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if(_.isArray(value)) {
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return value[1];
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}
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var result = _(descriptor.selection).detect(function (choice) {
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return choice[0] === value;
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});
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if (result) { return result[1]; }
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return;
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default:
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return value;
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}
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};
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instance.web.parse_value = function (value, descriptor, value_if_empty) {
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var date_pattern = normalize_format(_t.database.parameters.date_format),
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time_pattern = normalize_format(_t.database.parameters.time_format);
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switch (value) {
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case false:
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case "":
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return value_if_empty === undefined ? false : value_if_empty;
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}
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var tmp;
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switch (descriptor.widget || descriptor.type || (descriptor.field && descriptor.field.type)) {
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case 'integer':
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do {
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tmp = value;
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value = value.replace(instance.web._t.database.parameters.thousands_sep, "");
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} while(tmp !== value);
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tmp = Number(value);
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// do not accept not numbers or float values
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if (isNaN(tmp) || tmp % 1)
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throw new Error(_.str.sprintf(_t("'%s' is not a correct integer"), value));
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return tmp;
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case 'float':
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var tmp2 = value;
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do {
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tmp = tmp2;
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tmp2 = tmp.replace(instance.web._t.database.parameters.thousands_sep, "");
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} while(tmp !== tmp2);
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var reformatted_value = tmp.replace(instance.web._t.database.parameters.decimal_point, ".");
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var parsed = Number(reformatted_value);
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if (isNaN(parsed))
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throw new Error(_.str.sprintf(_t("'%s' is not a correct float"), value));
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return parsed;
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case 'float_time':
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var factor = 1;
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if (value[0] === '-') {
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value = value.slice(1);
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factor = -1;
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}
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var float_time_pair = value.split(":");
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if (float_time_pair.length != 2)
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return factor * instance.web.parse_value(value, {type: "float"});
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var hours = instance.web.parse_value(float_time_pair[0], {type: "integer"});
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var minutes = instance.web.parse_value(float_time_pair[1], {type: "integer"});
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return factor * (hours + (minutes / 60));
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case 'progressbar':
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return instance.web.parse_value(value, {type: "float"});
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case 'datetime':
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var datetime = Date.parseExact(
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value, (date_pattern + ' ' + time_pattern));
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if (datetime !== null)
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return instance.web.datetime_to_str(datetime);
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datetime = Date.parseExact(value, (date_pattern));
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if (datetime !== null)
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return instance.web.datetime_to_str(datetime);
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var leading_zero_value = value.toString().replace(/\d+/g, function(m){
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return m.length === 1 ? "0" + m : m ;
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});
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datetime = Date.parseExact(leading_zero_value, (date_pattern + ' ' + time_pattern));
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if (datetime !== null)
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return instance.web.datetime_to_str(datetime);
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datetime = Date.parseExact(leading_zero_value, (date_pattern));
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if (datetime !== null)
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return instance.web.datetime_to_str(datetime);
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datetime = Date.parse(value);
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if (datetime !== null)
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return instance.web.datetime_to_str(datetime);
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throw new Error(_.str.sprintf(_t("'%s' is not a correct datetime"), value));
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case 'date':
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var date = Date.parseExact(value, date_pattern);
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if (date !== null)
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return instance.web.date_to_str(date);
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date = Date.parseExact(value.toString().replace(/\d+/g, function(m){
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return m.length === 1 ? "0" + m : m ;
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}), date_pattern);
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if (date !== null)
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return instance.web.date_to_str(date);
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date = Date.parse(value);
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if (date !== null)
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return instance.web.date_to_str(date);
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throw new Error(_.str.sprintf(_t("'%s' is not a correct date"), value));
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case 'time':
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var time = Date.parseExact(value, time_pattern);
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if (time !== null)
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return instance.web.time_to_str(time);
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time = Date.parse(value);
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if (time !== null)
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return instance.web.time_to_str(time);
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throw new Error(_.str.sprintf(_t("'%s' is not a correct time"), value));
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}
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return value;
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};
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instance.web.auto_str_to_date = function(value, type) {
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try {
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return instance.web.str_to_datetime(value);
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} catch(e) {}
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try {
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return instance.web.str_to_date(value);
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} catch(e) {}
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try {
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return instance.web.str_to_time(value);
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} catch(e) {}
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throw new Error(_.str.sprintf(_t("'%s' is not a correct date, datetime nor time"), value));
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};
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instance.web.auto_date_to_str = function(value, type) {
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switch(type) {
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case 'datetime':
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return instance.web.datetime_to_str(value);
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case 'date':
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return instance.web.date_to_str(value);
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case 'time':
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return instance.web.time_to_str(value);
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default:
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throw new Error(_.str.sprintf(_t("'%s' is not convertible to date, datetime nor time"), type));
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}
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};
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/**
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* performs a half up rounding with arbitrary precision, correcting for float loss of precision
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* See the corresponding float_round() in server/tools/float_utils.py for more info
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* @param {Number} the value to be rounded
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* @param {Number} a precision parameter. eg: 0.01 rounds to two digits.
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*/
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instance.web.round_precision = function(value, precision){
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if (!value) {
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return 0;
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} else if (!precision || precision < 0) {
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precision = 1;
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}
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var normalized_value = value / precision;
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var epsilon_magnitude = Math.log(Math.abs(normalized_value))/Math.log(2);
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var epsilon = Math.pow(2, epsilon_magnitude - 53);
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normalized_value += normalized_value >= 0 ? epsilon : -epsilon;
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/**
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* Javascript performs strictly the round half up method, which is asymmetric. However, in
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* Python, the method is symmetric. For example:
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* - In JS, Math.round(-0.5) is equal to -0.
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* - In Python, round(-0.5) is equal to -1.
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* We want to keep the Python behavior for consistency.
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*/
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var sign = normalized_value < 0 ? -1.0 : 1.0;
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var rounded_value = sign * Math.round(Math.abs(normalized_value));
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return rounded_value * precision;
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};
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/**
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* performs a half up rounding with a fixed amount of decimals, correcting for float loss of precision
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* See the corresponding float_round() in server/tools/float_utils.py for more info
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* @param {Number} the value to be rounded
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* @param {Number} the number of decimals. eg: round_decimals(3.141592,2) -> 3.14
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*/
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instance.web.round_decimals = function(value, decimals){
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return instance.web.round_precision(value, Math.pow(10,-decimals));
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};
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instance.web.float_is_zero = function(value, decimals){
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epsilon = Math.pow(10, -decimals);
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return Math.abs(instance.web.round_precision(value, epsilon)) < epsilon;
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};
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})();
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