3 files changed, 36 insertions, 13 deletions
diff --git a/application/palemoon/base/content/browser.css b/application/palemoon/base/content/browser.css
index e6a84421b..24cbb9d8e 100644
--- a/application/palemoon/base/content/browser.css
+++ b/application/palemoon/base/content/browser.css
@@ -280,6 +280,10 @@ panel[noactions] > richlistbox > richlistitem[type~="action"] > .ac-url-box > .a
   -moz-binding: url("chrome://browser/content/urlbarBindings.xml#urlbar-rich-result-popup");
 }
 
+#DateTimePickerPanel[active="true"] {
+  -moz-binding: url("chrome://global/content/bindings/datetimepopup.xml#datetime-popup");
+}
+
 /* Pale Moon: Address bar: Feeds */
 #ub-feed-button > .button-box > .box-inherit > .button-text,
 #ub-feed-button > .button-box > .button-menu-dropmarker {
@@ -542,11 +546,11 @@ window[chromehidden~="toolbar"] toolbar:not(.toolbar-primary):not(#nav-bar):not(
   max-width: 280px;
 }
 
-.form-validation-anchor {
+.popup-anchor {
   /* should occupy space but not be visible */
   opacity: 0;
-  visibility: hidden;
   pointer-events: none;
+  -moz-stack-sizing: ignore;
 }
 
 #addon-progress-notification {
diff --git a/application/palemoon/base/content/browser.xul b/application/palemoon/base/content/browser.xul
index df152bbaa..8a79890cd 100644
--- a/application/palemoon/base/content/browser.xul
+++ b/application/palemoon/base/content/browser.xul
@@ -132,6 +132,20 @@
     <!-- for url bar autocomplete -->
     <panel type="autocomplete-richlistbox" id="PopupAutoCompleteRichResult" noautofocus="true" hidden="true"/>
 
+    <!-- for date/time picker. consumeoutsideclicks is set to never, so that
+         clicks on the anchored input box are never consumed. -->
+    <panel id="DateTimePickerPanel"
+           type="arrow"
+           hidden="true"
+           orient="vertical"
+           noautofocus="true"
+           norolluponanchor="true"
+           consumeoutsideclicks="never"
+           level="parent"
+           tabspecific="true">
+      <iframe id="dateTimePopupFrame"/>
+    </panel>
+
     <!-- for invalid form error message -->
     <panel id="invalid-form-popup" type="arrow" orient="vertical" noautofocus="true" hidden="true" level="parent">
       <description/>
@@ -946,7 +960,8 @@
                   flex="1" contenttooltip="aHTMLTooltip"
                   tabcontainer="tabbrowser-tabs"
                   contentcontextmenu="contentAreaContextMenu"
-                  autocompletepopup="PopupAutoComplete"/>
+                  autocompletepopup="PopupAutoComplete"
+                  datetimepicker="DateTimePickerPanel"/>
       <chatbar id="pinnedchats" layer="true" mousethrough="always" hidden="true"/>
       <statuspanel id="statusbar-display" inactive="true"/>
     </vbox>
diff --git a/application/palemoon/base/content/tabbrowser.xml b/application/palemoon/base/content/tabbrowser.xml
index 4b10855a7..eaf3ea4d9 100644
--- a/application/palemoon/base/content/tabbrowser.xml
+++ b/application/palemoon/base/content/tabbrowser.xml
@@ -30,7 +30,7 @@
               <xul:vbox flex="1" class="browserContainer">
                 <xul:stack flex="1" class="browserStack" anonid="browserStack">
                   <xul:browser anonid="initialBrowser" type="content-primary" message="true" disablehistory="true"
-                               xbl:inherits="tooltip=contenttooltip,contextmenu=contentcontextmenu,autocompletepopup"/>
+                               xbl:inherits="tooltip=contenttooltip,contextmenu=contentcontextmenu,autocompletepopup,datetimepicker"/>
                 </xul:stack>
               </xul:vbox>
             </xul:hbox>
@@ -138,19 +138,19 @@
         ]]></getter>
       </property>
 
-      <property name="formValidationAnchor" readonly="true">
+      <property name="popupAnchor" readonly="true">
         <getter><![CDATA[
-        if (this.mCurrentTab._formValidationAnchor) {
-          return this.mCurrentTab._formValidationAnchor;
+        if (this.mCurrentTab._popupAnchor) {
+          return this.mCurrentTab._popupAnchor;
         }
         let stack = this.mCurrentBrowser.parentNode;
-        // Create an anchor for the form validation popup
+        // Create an anchor for the popup
         const NS_XUL = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-        let formValidationAnchor = document.createElementNS(NS_XUL, "hbox");
-        formValidationAnchor.className = "form-validation-anchor";
-        formValidationAnchor.hidden = true;
-        stack.appendChild(formValidationAnchor);
-        return this.mCurrentTab._formValidationAnchor = formValidationAnchor;
+        let popupAnchor = document.createElementNS(NS_XUL, "hbox");
+        popupAnchor.className = "popup-anchor";
+        popupAnchor.hidden = true;
+        stack.appendChild(popupAnchor);
+        return this.mCurrentTab._popupAnchor = popupAnchor;
         ]]></getter>
       </property>
 
@@ -1451,6 +1451,10 @@
               b.setAttribute("autocompletepopup", this.getAttribute("autocompletepopup"));
             b.setAttribute("autoscrollpopup", this._autoScrollPopup.id);
 
+            if (this.hasAttribute("datetimepicker")) {
+              b.setAttribute("datetimepicker", this.getAttribute("datetimepicker"));
+            }
+
             // Create the browserStack container
             var stack = document.createElementNS(NS_XUL, "stack");
             stack.className = "browserStack";