8 files changed, 104 insertions, 2 deletions
diff --git a/app/frontend/controls/grid/DummyGridElement.php b/app/frontend/controls/grid/DummyGridElement.php
new file mode 100644
index 0000000..8223bb2
--- /dev/null
+++ b/app/frontend/controls/grid/DummyGridElement.php
@@ -0,0 +1,9 @@
+<?php
+
+Prado::using('Application.controls.grid.GridElement');
+
+class DummyGridElement extends GridElement {
+
+}
+
+?>
diff --git a/app/frontend/controls/grid/DummyGridElement.tpl b/app/frontend/controls/grid/DummyGridElement.tpl
new file mode 100644
index 0000000..add41d9
--- /dev/null
+++ b/app/frontend/controls/grid/DummyGridElement.tpl
@@ -0,0 +1 @@
+<div class="gridItem">&nbsp;</div>
diff --git a/app/frontend/controls/grid/EventGridElement.php b/app/frontend/controls/grid/EventGridElement.php
new file mode 100644
index 0000000..28eaefa
--- /dev/null
+++ b/app/frontend/controls/grid/EventGridElement.php
@@ -0,0 +1,9 @@
+<?php
+
+Prado::using('Application.controls.grid.GridElement');
+
+class EventGridElement extends GridElement {
+
+}
+
+?>
diff --git a/app/frontend/controls/grid/EventGridElement.tpl b/app/frontend/controls/grid/EventGridElement.tpl
new file mode 100644
index 0000000..dca642a
--- /dev/null
+++ b/app/frontend/controls/grid/EventGridElement.tpl
@@ -0,0 +1,5 @@
+<com:THtmlElement ID="Event"
+                  TagName="div"
+                  CssClass="gridEvent">
+  <%= $this->Data->Name %>
+</com:THtmlElement>
diff --git a/app/frontend/controls/grid/GridElement.php b/app/frontend/controls/grid/GridElement.php
new file mode 100644
index 0000000..3628d4b
--- /dev/null
+++ b/app/frontend/controls/grid/GridElement.php
@@ -0,0 +1,17 @@
+<?php
+
+Prado::using('Application.components.TemplateControl');
+
+class GridElement extends TemplateControl {
+
+    public function setData($data) {
+        $this->setControlState('Data', $data);
+    }
+
+    public function getData() {
+        return $this->getControlState('Data');
+    }
+
+}
+
+?>
diff --git a/app/frontend/controls/grid/GroupGridElement.php b/app/frontend/controls/grid/GroupGridElement.php
new file mode 100644
index 0000000..dc92239
--- /dev/null
+++ b/app/frontend/controls/grid/GroupGridElement.php
@@ -0,0 +1,23 @@
+<?php
+
+Prado::using('Application.controls.grid.GridElement');
+
+class GroupGridElement extends GridElement {
+
+    public function onPreRender($param) {
+        parent::onPreRender($param);
+        $this->GroupEvents->setDataSource($this->Data->Events);
+        $this->GroupEvents->dataBind();
+    }
+
+    public function stripPrefix(string $string) {
+        return preg_replace(
+            '#^' . preg_quote($this->Data->Header) . '\s*#',
+            '',
+            $string
+        );
+    }
+
+}
+
+?>
diff --git a/app/frontend/controls/grid/GroupGridElement.tpl b/app/frontend/controls/grid/GroupGridElement.tpl
new file mode 100644
index 0000000..af07655
--- /dev/null
+++ b/app/frontend/controls/grid/GroupGridElement.tpl
@@ -0,0 +1,16 @@
+<com:THtmlElement ID="Group"
+                  TagName="div"
+                  CssClass="gridGroup">
+  <%= $this->Data->Header %>
+  (<%= count($this->Data->Events) %>)
+  <div class="gridGroupElements">
+    <com:TRepeater ID="GroupEvents">
+      <prop:ItemTemplate>
+        <div class="event">
+          <%# $this->SourceTemplateControl->stripPrefix($this->Data->Name) %>
+          (<%# $this->Data->DateString %>)
+        </div>
+      </prop:ItemTemplate>
+    </com:TRepeater>
+  </div>
+</com:THtmlElement>
diff --git a/app/frontend/controls/styles/CalendarGrid.css b/app/frontend/controls/styles/CalendarGrid.css
index 4710993..0656200 100644
--- a/app/frontend/controls/styles/CalendarGrid.css
+++ b/app/frontend/controls/styles/CalendarGrid.css
@@ -8,9 +8,31 @@ div.gridDay {
     min-height: 8em;
     flex: 1 1 auto;
 }
-div.gridEvent, div.gridItem { height: 1.5em; padding: 0.3em 0.5em; margin: 0.1em 0; }
-div.gridEvent { overflow: hidden; white-space: nowrap; background: #ddd }
+div.gridEvent,
+div.gridItem,
+div.gridGroup {
+    height: 1.5em;
+    padding: 0.3em 0.5em;
+    margin: 0.1em 0;
+}
+div.gridGroup,
+div.gridEvent {
+    overflow: hidden;
+    white-space: nowrap;
+    background: #ddd;
+}
 div.gridEvent.beginDate { border-top-left-radius: 1.5em;
                           border-bottom-left-radius: 1.5em }
 div.gridEvent.endDate { border-top-right-radius: 1.5em;
                         border-bottom-right-radius: 1.5em }
+
+div.gridGroupElements {
+    position: absolute;
+    width: 13%;
+    background: #eee;
+    white-space: normal;
+    display: none;
+    cursor: auto;
+}
+div.gridGroup { cursor: pointer }
+div.gridGroup:hover div.gridGroupElements { display: block; }