116 lines
2.9 KiB
JavaScript
116 lines
2.9 KiB
JavaScript
/* License: Dual-license GPL 3.0+ or MPL 1.1+
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* Contributor(s): Vitaliy Filippov <vitalif@mail.ru>
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*/
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/* This file provides JavaScript functions to be included when one wishes
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* to show/hide certain UI elements, and have the state of them being
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* shown/hidden stored in a cookie.
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*
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* TUI stands for Tweak UI.
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*
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* Rewritten without YAHOO UI, requires just js/util.js.
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*
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* See template/en/default/bug/create/create.html.tmpl for a usage example.
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*/
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var TUI_HIDDEN_CLASS = 'bz_tui_hidden';
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var TUI_COOKIE_NAME = 'TUI';
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var TUI_alternates = new Array();
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/**
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* Hides a particular class of elements if they are shown,
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* or shows them if they are hidden. Then it stores whether that
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* class is now hidden or shown.
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*
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* @param className The name of the CSS class to hide.
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*/
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function TUI_toggle_class(className)
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{
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var hidden = toggleRule('tui_css', '.'+className, 'display: none !important');
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TUI_store(className, hidden ? '' : '1');
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TUI_toggle_control_link(className);
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}
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/**
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* Specifies that a certain class of items should be hidden by default,
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* if the user doesn't have a TUI cookie.
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*
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* @param className The class to hide by default.
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*/
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function TUI_hide_default(className)
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{
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addListener(window, 'load', function() {
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if (!getCookieHash(TUI_COOKIE_NAME)[className])
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TUI_toggle_class(className);
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});
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}
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function TUI_toggle_control_link(className)
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{
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var link = document.getElementById(className + "_controller");
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var original_text = link.innerHTML;
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link.innerHTML = TUI_alternates[className];
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TUI_alternates[className] = original_text;
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}
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function getCookieHash(name)
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{
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var c = getCookie(name)||'';
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c = c.split('&');
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var h = {};
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var t;
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for (var i = 0; i < c.length; i++)
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{
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t = c[i].split('=', 2);
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if (t[0].length)
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h[t[0]] = t[1];
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}
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return h;
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}
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function TUI_store(aClass, state)
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{
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var h = getCookieHash(TUI_COOKIE_NAME);
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h[aClass] = state;
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var c = [];
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for (var i in h)
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c.push(i+'='+h[i]);
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c = c.join('&');
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setCookie(TUI_COOKIE_NAME, c, {
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expires: new Date('January 1, 2038'),
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path: BUGZILLA.param.cookiepath
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});
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}
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function toggleRule(css_id, target, rule)
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{
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var s;
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if (!(s = document.getElementById(css_id)))
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{
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s = document.createElement('style');
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document.getElementsByTagName('head')[0].appendChild(s);
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s.setAttribute('id', css_id);
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}
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ss = s.sheet||s;
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var f = false;
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var r = ss.rules||ss.cssRules;
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for (var i = r.length-1; i >= 0; i--)
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{
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if (r[i].selectorText == target)
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{
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if (ss.removeRule)
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ss.removeRule(i);
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else
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ss.deleteRule(i);
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f = true;
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}
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}
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if (f)
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return false;
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if (ss.addRule)
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ss.addRule(target, rule);
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else
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s.appendChild(document.createTextNode(target+' { '+rule+' }'));
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return true;
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}
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