Touch up share modal

Touching up the share modal.
This is in preparation to allow a field for a contact (dropdown) / email address input, so that the shared link can be quickly emailed to a client

js/share_modal.js

@@ -0,0 +1,49 @@
+function populateShareModal(client_id, item_type, item_ref_id) {
+
+    // Populate HTML fields
+    document.getElementById("share_client_id").value = client_id;
+    document.getElementById("share_item_type").value = item_type;
+    document.getElementById("share_item_ref_id").value = item_ref_id;
+
+    // (re)Hide the URL/div (incase we're re-generating it)
+    document.getElementById("div_share_link_output").hidden = true;
+    document.getElementById("share_link").value = '';
+
+    // Show form and generate button
+    document.getElementById("div_share_link_form").hidden = false;
+    document.getElementById("div_share_link_generate").hidden = false;
+}
+
+function generateShareLink() {
+    let client_id = document.getElementById("share_client_id").value;
+    let item_type = document.getElementById("share_item_type").value;
+    let item_ref_id = document.getElementById("share_item_ref_id").value;
+    let item_note = document.getElementById("share_note").value;
+    let item_views = document.getElementById("share_views").value;
+    let item_expires = document.getElementById("share_expires").value;
+
+    // Check values are provided
+    if (item_views && item_expires && item_note) {
+        // Send a GET request to ajax.php as ajax.php?share_generate_link=true....
+        jQuery.get(
+            "ajax.php",
+            {share_generate_link: 'true', client_id: client_id, type: item_type, id: item_ref_id, note: item_note ,views: item_views, expires: item_expires},
+            function(data) {
+
+                // If we get a response from ajax.php, parse it as JSON
+                const response = JSON.parse(data);
+
+                // Hide the div/form & button used to generate the link
+                document.getElementById("div_share_link_form").hidden = true;
+                document.getElementById("div_share_link_generate").hidden = true;
+
+                // Show the readonly input containing the shared link
+                document.getElementById("div_share_link_output").hidden = false;
+                document.getElementById("share_link").value = response;
+
+                // Copy link to clipboard
+                navigator.clipboard.writeText(response);
+            }
+        );
+    }
+}