Buttons component : add tooltip

Note that we will do later on a pass on accessibility, so we might add as well a title attribute, or a aria-* attribute

sources/application/UI/Component/Button/ButtonFactory.php

@@ -307,6 +307,7 @@ class ButtonFactory
 	{
 		$oButton = static::MakeForAction('', Button::ENUM_COLOR_NEUTRAL, Button::ENUM_ACTION_TYPE_ALTERNATIVE, null, $sName, false, $sId);
 		$oButton->SetIconClass($sIconClasses);
+		$oButton->SetTooltip($sTooltipText);
 
 		if (!empty($sURL)) {
 			if (empty($sTarget)) {

templates/components/button/layout.html.twig

@@ -5,6 +5,7 @@
         name="{{ oUIBlock.GetName() }}"
         value="{{ oUIBlock.GetValue() }}"
         {% if oUIBlock.IsDisabled() is same as(true) %} disabled {% endif %}
+        {% if oUIBlock.GetTooltip() is not empty %} data-tooltip-content="{{ oUIBlock.GetTooltip() }}" {% endif %}
 >
     {% if oUIBlock.GetIconClass() is not empty %}
         <span class="ibo-button--icon {{ oUIBlock.GetIconClass() }}"></span>