mirror of
https://github.com/phpbb/phpbb.git
synced 2025-10-19 10:46:10 +02:00
96 lines
2.7 KiB
JavaScript
96 lines
2.7 KiB
JavaScript
function phpbb_switch_tz_date(keep_selection)
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{
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var timezone_groups = document.getElementById("timezone");
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for (var i = 0; i < timezone_groups.childElementCount; i++) {
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if (timezone_groups.children[i].tagName == "OPTGROUP" &&
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timezone_groups.children[i].label != document.getElementById("tz_date").value)
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{
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timezone_groups.children[i].style.display = "none";
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}
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else if (timezone_groups.children[i].tagName == "OPTGROUP")
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{
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// Display other options
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timezone_groups.children[i].style.display = "block";
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}
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}
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if (typeof keep_selection !== 'undefined')
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{
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if (!keep_selection)
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{
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timezone_groups.children[0].selected = true;
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}
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}
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}
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function phpbb_enable_tz_dates()
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{
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var tz_select_date = document.getElementById("tz_select_date");
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tz_select_date.style.display = "block";
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}
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function phpbb_preselect_tz_select(force_selector, l_suggestion)
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{
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var selector = document.getElementById('tz_date');
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// The offset returned here is in minutes and negated.
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// http://www.w3schools.com/jsref/jsref_getTimezoneOffset.asp
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var offset = (new Date()).getTimezoneOffset();
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if (offset < 0)
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{
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var sign = '+';
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offset = -offset;
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}
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else
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{
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var sign = '-';
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}
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var minutes = offset % 60;
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var hours = (offset - minutes) / 60;
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if (hours < 10)
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{
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hours = '0' + hours.toString();
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}
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else
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{
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hours = hours.toString();
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}
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if (minutes < 10)
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{
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minutes = '0' + minutes.toString();
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}
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else
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{
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minutes = minutes.toString();
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}
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var prefix = 'GMT' + sign + hours + ':' + minutes;
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var prefix_length = prefix.length;
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for (var i = 0; i < selector.options.length; ++i)
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{
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var option = selector.options[i];
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if (option.value.substring(0, prefix_length) == prefix)
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{
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if (selector.value && selector.value != option.value && !force_selector)
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{
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// We do not select the option for the user, but notify him,
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// that we would suggest a different setting.
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document.getElementById("tz_select_date_suggest").style.display = "inline";
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document.getElementById("tz_select_date_suggest").title = l_suggestion.replace("%s", option.innerHTML);
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document.getElementById("tz_select_date_suggest").innerHTML = l_suggestion.replace("%s", option.innerHTML.substring(0, 9));
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phpbb_switch_tz_date(true);
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}
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else
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{
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// Firefox scrolls the selector only to put the option into view;
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// for negative-offset timezones, this means the first timezone
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// of a particular offset will be the bottom one, and selected,
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// with all other timezones not visible. Not much can be done
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// about that here unfortunately.
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option.selected = true;
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phpbb_switch_tz_date(!force_selector);
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document.getElementById("tz_select_date_suggest").style.display = "none";
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}
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break;
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}
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}
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}
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