From 3412e50b54e3daac8745234e21ab6e72be0ed165 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Wed, 04 Jun 2014 11:20:33 -0400
Subject: [PATCH] Fix attachment menu structure and aria-attributes
---
program/js/list.js | 131 +++++++++++++++++++++++++++----------------
1 files changed, 81 insertions(+), 50 deletions(-)
diff --git a/program/js/list.js b/program/js/list.js
index fa37353..cf6c3f0 100644
--- a/program/js/list.js
+++ b/program/js/list.js
@@ -51,7 +51,7 @@
this.rowcount = 0;
this.colcount = 0;
- this.subject_col = -1;
+ this.subject_col = 0;
this.modkey = 0;
this.multiselect = false;
this.multiexpand = false;
@@ -60,6 +60,7 @@
this.column_movable = false;
this.keyboard = false;
this.toggleselect = false;
+ this.aria_listbox = false;
this.drag_active = false;
this.col_drag_active = false;
@@ -75,6 +76,9 @@
if (p && typeof p === 'object')
for (var n in p)
this[n] = p[n];
+
+ // register this instance
+ rcube_list_widget._instances.push(this);
};
@@ -94,6 +98,12 @@
this.tbody = this.list;
}
+ if ($(this.list).attr('role') == 'listbox') {
+ this.aria_listbox = true;
+ if (this.multiselect)
+ $(this.list).attr('aria-multiselectable', 'true');
+ }
+
if (this.tbody) {
this.rows = {};
this.rowcount = 0;
@@ -111,15 +121,9 @@
if (this.keyboard) {
rcube_event.add_listener({event:'keydown', object:this, method:'key_press'});
- // install a link element to receive focus.
- // this helps to maintain the natural tab order when moving focus with keyboard
- this.focus_elem = $('<a>')
- .attr('tabindex', '0')
- .attr('style', 'display:block; width:1px; height:1px; line-height:1px; overflow:hidden; position:fixed; top:-1000px')
- .html('Select List')
- .insertAfter(this.list)
- .on('focus', function(e){ me.focus(e); })
- .on('blur', function(e){ me.blur(e); });
+ // allow the table element to receive focus.
+ $(this.list).attr('tabindex', '0')
+ .on('focus', function(e){ me.focus(e); });
}
}
@@ -165,6 +169,15 @@
}, false);
}
+ // label the list row with the subject col as descriptive label
+ if (this.aria_listbox) {
+ var lbl_id = 'l:' + row.id;
+ $(row)
+ .attr('role', 'option')
+ .attr('aria-labelledby', lbl_id)
+ .find(this.col_tagname()).eq(this.subject_col).attr('id', lbl_id);
+ }
+
if (document.all)
row.onselectstart = function() { return false; };
@@ -186,7 +199,7 @@
if (this.fixed_header) { // copy (modified) fixed header back to the actual table
$(this.list.tHead).replaceWith($(this.fixed_header).find('thead').clone());
- $(this.list.tHead).find('tr td').attr('style', '').find('a').attr('tabindex', '-1'); // remove fixed widths
+ $(this.list.tHead).find('th,td').attr('style', '').find('a').attr('tabindex', '-1'); // remove fixed widths
}
else if (!bw.touch && this.list.className.indexOf('fixedheader') >= 0) {
this.init_fixed_header();
@@ -213,6 +226,7 @@
if (!this.fixed_header) {
this.fixed_header = $('<table>')
.attr('class', this.list.className + ' fixedcopy')
+ .attr('role', 'presentation')
.css({ position:'fixed' })
.append(clone)
.append('<tbody></tbody>');
@@ -279,11 +293,10 @@
this.rows = {};
this.rowcount = 0;
+ this.last_selected = 0;
if (sel)
this.clear_selection();
- else
- this.last_selected = 0;
// reset scroll position (in Opera)
if (this.frame)
@@ -392,23 +405,21 @@
if (this.focused)
return;
- var n, id;
this.focused = true;
-
- for (n in this.selection) {
- id = this.selection[n];
- if (this.rows[id] && this.rows[id].obj) {
- $(this.rows[id].obj).addClass('selected').removeClass('unfocused');
- }
- }
if (e)
rcube_event.cancel(e);
+ var focus_elem = null;
+
+ if (this.last_selected && this.rows[this.last_selected]) {
+ focus_elem = $(this.rows[this.last_selected].obj).find(this.col_tagname()).eq(this.subject_col).attr('tabindex', '0');
+ }
+
// Un-focus already focused elements (#1487123, #1487316, #1488600, #1488620)
- if (this.focus_elem) {
+ if (focus_elem && focus_elem.length) {
// We now fix this by explicitly assigning focus to a dedicated link element
- this.focus_noscroll(this.focus_elem);
+ this.focus_noscroll(focus_elem);
}
else {
// It looks that window.focus() does the job for all browsers, but not Firefox (#1489058)
@@ -416,7 +427,7 @@
window.focus();
}
- $(this.list).addClass('focus');
+ $(this.list).addClass('focus').removeAttr('tabindex');
// set internal focus pointer to first row
if (!this.last_selected)
@@ -429,16 +440,18 @@
*/
blur: function(e)
{
- var n, id;
this.focused = false;
- for (n in this.selection) {
- id = this.selection[n];
- if (this.rows[id] && this.rows[id].obj) {
- $(this.rows[id].obj).removeClass('selected focused').addClass('unfocused');
- }
+
+ // avoid the table getting focus right again
+ var me = this;
+ setTimeout(function(){
+ $(me.list).removeClass('focus').attr('tabindex', '0');
+ }, 20);
+
+ if (this.last_selected && this.rows[this.last_selected]) {
+ $(this.rows[this.last_selected].obj)
+ .find(this.col_tagname()).eq(this.subject_col).removeAttr('tabindex');
}
-
- $(this.list).removeClass('focus');
},
/**
@@ -842,9 +855,9 @@
get_first_row: function()
{
if (this.rowcount) {
- var i, len, uid, rows = this.tbody.childNodes;
+ var i, uid, rows = this.tbody.childNodes;
- for (i=0, len=rows.length-1; i<len; i++)
+ for (i=0; i<rows.length; i++)
if (rows[i].id && (uid = this.get_row_uid(rows[i])))
return uid;
}
@@ -887,9 +900,10 @@
*/
select_row: function(id, mod_key, with_mouse)
{
- var select_before = this.selection.join(',');
+ var select_before = this.selection.join(','),
+ in_selection_before = this.in_selection(id);
- if (!this.multiselect)
+ if (!this.multiselect && with_mouse)
mod_key = 0;
if (!this.shift_start)
@@ -925,20 +939,26 @@
this.multi_selecting = true;
}
- // trigger event if selection changed
- if (this.selection.join(',') != select_before)
- this.triggerEvent('select');
-
- if (this.last_selected != 0 && this.rows[this.last_selected])
- $(this.rows[this.last_selected].obj).removeClass('focused');
+ if (this.last_selected != 0 && this.rows[this.last_selected]) {
+ $(this.rows[this.last_selected].obj).removeClass('focused')
+ .find(this.col_tagname()).eq(this.subject_col).removeAttr('tabindex');
+ }
// unselect if toggleselect is active and the same row was clicked again
- if (this.toggleselect && this.last_selected == id) {
+ if (this.toggleselect && in_selection_before) {
this.clear_selection();
- id = null;
}
- else
+ // trigger event if selection changed
+ else if (this.selection.join(',') != select_before) {
+ this.triggerEvent('select');
+ }
+
+ if (this.rows[id]) {
$(this.rows[id].obj).addClass('focused');
+ // set cursor focus to link inside selected row
+ if (this.focused)
+ this.focus_noscroll($(this.rows[id].obj).find(this.col_tagname()).eq(this.subject_col).attr('tabindex', '0'));
+ }
if (!this.selection.length)
this.shift_start = null;
@@ -1086,7 +1106,7 @@
this.highlight_row(n, true, true);
}
else {
- $(this.rows[n].obj).removeClass('selected').removeClass('unfocused');
+ $(this.rows[n].obj).removeClass('selected').removeAttr('aria-selected');
}
}
@@ -1143,7 +1163,7 @@
else {
for (n in this.selection)
if (this.rows[this.selection[n]]) {
- $(this.rows[this.selection[n]].obj).removeClass('selected').removeClass('unfocused');
+ $(this.rows[this.selection[n]].obj).removeClass('selected').removeAttr('aria-selected');
}
this.selection = [];
@@ -1206,13 +1226,13 @@
if (this.selection.length > 1 || !this.in_selection(id)) {
this.clear_selection(null, true);
this.selection[0] = id;
- $(this.rows[id].obj).addClass('selected');
+ $(this.rows[id].obj).addClass('selected').attr('aria-selected', 'true');
}
}
else {
if (!this.in_selection(id)) { // select row
this.selection.push(id);
- $(this.rows[id].obj).addClass('selected');
+ $(this.rows[id].obj).addClass('selected').attr('aria-selected', 'true');
if (!norecur && !this.rows[id].expanded)
this.highlight_children(id, true);
}
@@ -1222,7 +1242,7 @@
a_post = this.selection.slice(p+1, this.selection.length);
this.selection = a_pre.concat(a_post);
- $(this.rows[id].obj).removeClass('selected').removeClass('unfocused');
+ $(this.rows[id].obj).removeClass('selected').removeAttr('aria-selected');
if (!norecur && !this.rows[id].expanded)
this.highlight_children(id, false);
}
@@ -1301,6 +1321,14 @@
}
return rcube_event.cancel(e);
+
+ case 9: // Tab
+ this.blur();
+ break;
+
+ case 13: // Enter
+ if (!this.selection.length)
+ this.select_row(this.last_selected, mod_key, false);
default:
this.key_pressed = keyCode;
@@ -1766,3 +1794,6 @@
rcube_list_widget.prototype.addEventListener = rcube_event_engine.prototype.addEventListener;
rcube_list_widget.prototype.removeEventListener = rcube_event_engine.prototype.removeEventListener;
rcube_list_widget.prototype.triggerEvent = rcube_event_engine.prototype.triggerEvent;
+
+// static
+rcube_list_widget._instances = [];
--
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