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API: Keyboard navigation for context menu

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This commit is contained in:
nathangray 2021-05-13 15:09:53 -06:00
parent c3bebf9c31
commit 8e01929a43
2 changed files with 101 additions and 0 deletions
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6
api/js/egw_action/egw_keymanager.js
View File

@ -162,6 +162,12 @@ jQuery(document).ready(function() {
// Check whether the event came from the sidebox - if yes, ignore
if(jQuery(e.target).parents("#egw_fw_sidemenu").length > 0) return;
// If a context menu is open, give the keyboard to it
if(_egw_active_menu !== null && _egw_active_menu.keyHandler(keyCode, e.shiftKey, e.ctrlKey || e.metaKey, e.altKey))
{
e.preventDefault();
return;
}
// Check whether the event came from an input field - if yes, only
// allow function keys (like F1) to be captured by our code
var inInput = _egw_nodeIsInInput(e.target);

95
api/js/egw_action/egw_menu.js
View File

@ -194,6 +194,101 @@ egwMenu.prototype.showAt = function(_x, _y, _force)
return false;
}
/**
* Keyhandler to allow keyboard navigation of menu
*
* @return boolean true if we dealt with the keypress
*/
egwMenu.prototype.keyHandler = function(_keyCode, _shift, _ctrl, _alt)
{
// Let main keyhandler deal with shortcuts
var idx = egw_shortcutIdx(_keyCode, _shift, _ctrl, _alt);
if (typeof egw_registeredShortcuts[idx] !== "undefined")
{
return false;
}
let current = this.instance.dhtmlxmenu.menuSelected;
if(current !== -1)
{
let find_func = function(child) {
if( child.id === current.replace(this.instance.dhtmlxmenu.idPrefix, ""))
{
return child;
}
else if (child.children)
{
for(let i = 0; i < child.children.length; i++)
{
result = find_func(child.children[i]);
if(result) return result;
}
}
return null;
}.bind(this);
current = find_func(this);
}
else
{
current = this.children[0];
jQuery("#"+this.instance.dhtmlxmenu.idPrefix + current.id).trigger("mouseover");
return true;
}
switch (_keyCode) {
case EGW_KEY_ENTER:
jQuery("#"+this.instance.dhtmlxmenu.idPrefix + current.id).trigger("click");
return true;
case EGW_KEY_ESCAPE:
this.hide();
return true;
case EGW_KEY_ARROW_RIGHT:
if(current.children)
{
current = current.children[0];
}
break;
case EGW_KEY_ARROW_LEFT:
if(current.parent && current.parent !== this)
{
current = current.parent;
}
break;
case EGW_KEY_ARROW_UP:
case EGW_KEY_ARROW_DOWN:
direction = _keyCode === EGW_KEY_ARROW_DOWN ? 1 : -1;
let parent = current.parent;
let index = parent.children.indexOf(current);
let cont = false;
// Don't run off ends, skip disabled
do
{
index += direction;
cont = !parent.children[index] || !parent.children[index].enabled || !parent.children[index].id;
} while (cont && index + direction < parent.children.length && index + direction >= 0);
if(index > parent.children.length - 1)
{
index = parent.children.length-1;
}
if(index < 0)
{
index = 0;
}
current = parent.children[index];
break;
default:
return false;
}
if(current)
{
jQuery("#" + this.instance.dhtmlxmenu.idPrefix + current.id).trigger("mouseover");
this.instance.dhtmlxmenu._redistribSubLevelSelection(this.instance.dhtmlxmenu.idPrefix + current.id,this.instance.dhtmlxmenu.idPrefix + ( current.parent ? current.parent.id : this.instance.dhtmlxmenu.topId));
}
return true;
};
/**
* Hides the menu if it is currently opened. Otherwise nothing happenes.
*/