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-rw-r--r--js/TUI.js168
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+/* The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is the Bugzilla Bug Tracking System.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation. Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): Dennis Melentyev <dennis.melentyev@infopulse.com.ua>
+ */
+
+ /* This file provides JavaScript functions to be included once one wish
+ * to add a hide/reveal/collapse per-class functionality
+ *
+ *
+ * This file contains hide/reveal API for customizable page views
+ * TUI stands for Tweak UI.
+ *
+ * See bug 262592 for usage examples.
+ *
+ * Note: this interface is experimental and under development.
+ * We may and probably will make breaking changes to it in the future.
+ */
+
+ var TUIClasses = new Array;
+ var TUICookiesEnabled = -1;
+
+ // Internal function to demangle cookies
+ function TUI_demangle(value) {
+ var pair;
+ var pairs = value.split(",");
+ for (i = 0; i < pairs.length; i++) {
+ pair = pairs[i].split(":");
+ if (pair[0] != null && pair[1] != null)
+ TUIClasses[pair[0]] = pair[1];
+ }
+ }
+
+ /* TUI_tweak: Function to redraw whole document.
+ * Also, initialize TUIClasses array with defaults, then override it
+ * with values from cookie
+ */
+
+ function TUI_tweak( cookiesuffix, classes ) {
+ var dc = document.cookie;
+ var begin = -1;
+ var end = 0;
+
+ // Register classes and their defaults
+ TUI_demangle(classes);
+
+ if (TUICookiesEnabled > 0) {
+ // If cookies enabled, process them
+ TUI_demangle(TUI_getCookie(cookiesuffix));
+ }
+ else if (TUICookiesEnabled == -1) {
+ // If cookies availability not checked yet since browser does
+ // not has navigator.cookieEnabled property, let's check it manualy
+ var cookie = TUI_getCookie(cookiesuffix);
+ if (cookie.length == 0)
+ {
+ TUI_setCookie(cookiesuffix);
+ // Cookies are definitely disabled for JS.
+ if (TUI_getCookie(cookiesuffix).length == 0)
+ TUICookiesEnabled = 0;
+ else
+ TUICookiesEnabled = 1;
+ }
+ else {
+ // Have cookie set, pretend to be able to reset them later on
+ TUI_demangle(cookie);
+ TUICookiesEnabled = 1;
+ }
+ }
+
+ if (TUICookiesEnabled > 0) {
+ var els = document.getElementsByTagName('*');
+ for (i = 0; i < els.length; i++) {
+ if (null != TUIClasses[els[i].className]) {
+ TUI_apply(els[i], TUIClasses[els[i].className]);
+ }
+ }
+ }
+ return;
+ }
+
+ // TUI_apply: Function to draw certain element.
+ // Receives element itself and style value: hide, reveal or collapse
+
+ function TUI_apply(element, value) {
+ if (TUICookiesEnabled > 0 && element != null) {
+ switch (value)
+ {
+ case 'hide':
+ element.style.visibility="hidden";
+ break;
+ case 'collapse':
+ element.style.visibility="hidden";
+ element.style.display="none";
+ break;
+ case 'reveal': // Shown item must expand
+ default: // The default is to show & expand
+ element.style.visibility="visible";
+ element.style.display="";
+ break;
+ }
+ }
+ }
+
+ // TUI_change: Function to process class.
+ // Usualy called from onclick event of button
+
+ function TUI_change(cookiesuffix, clsname, action) {
+ if (TUICookiesEnabled > 0) {
+ var els, i;
+ els = document.getElementsByTagName('*');
+ for (i=0; i<els.length; i++) {
+ if (els[i].className.match(clsname)) {
+ TUI_apply(els[i], action);
+ }
+ }
+ TUIClasses[clsname]=action;
+ TUI_setCookie(cookiesuffix);
+ }
+ }
+
+ // TUI_setCookie: Function to set TUI cookie.
+ // Used internally
+
+ function TUI_setCookie(cookiesuffix) {
+ var cookieval = "";
+ var expireOn = new Date();
+ expireOn.setYear(expireOn.getFullYear() + 25);
+ for (clsname in TUIClasses) {
+ if (cookieval.length > 0)
+ cookieval += ",";
+ cookieval += clsname+":"+TUIClasses[clsname];
+ }
+ document.cookie="Bugzilla_TUI_"+cookiesuffix+"="+cookieval+"; expires="+expireOn.toString();
+ }
+
+ // TUI_getCookie: Function to get TUI cookie.
+ // Used internally
+
+ function TUI_getCookie(cookiesuffix) {
+ var dc = document.cookie;
+ var begin, end;
+ var cookiePrefix = "Bugzilla_TUI_"+cookiesuffix+"=";
+ begin = dc.indexOf(cookiePrefix, end);
+ if (begin != -1) {
+ begin += cookiePrefix.length;
+ end = dc.indexOf(";", begin);
+ if (end == -1) {
+ end = dc.length;
+ }
+ return unescape(dc.substring(begin, end));
+ }
+ return "";
+ }