From 1b5ff103f589140473068fd83340b0cc443fb420 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Fri, 20 Nov 2020 23:01:32 +0100
Subject: Work on templetazing js.

---
 static/popup.js | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 static/popup.js

(limited to 'static/popup.js')

diff --git a/static/popup.js b/static/popup.js
new file mode 100644
index 00000000..bc4e766d
--- /dev/null
+++ b/static/popup.js
@@ -0,0 +1,61 @@
+
+
+/* event component => coresponding popup component */
+function event_from_popup(popup) {
+    return document.getElementById(popup.id.substr(5))
+}
+
+/* popup component => coresponding event component */
+function popup_from_event(event) {
+    return document.getElementById("popup" + event.id);
+}
+
+/* hides given popup */
+function close_popup(popup) {
+    popup.classList.remove("visible");
+}
+
+/* hides all popups */
+function close_all_popups () {
+    for (let popup of document.querySelectorAll(".popup-container.visible")) {
+        close_popup(popup);
+    }
+}
+
+/* open given popup */
+function open_popup(popup) {
+    popup.classList.add("visible");
+    let element = event_from_popup(popup);
+    // let root = document.body;
+    let root;
+    switch (VIEW) {
+    case 'week':
+        root = document.getElementsByClassName("days")[0];
+        break;
+    case 'month':
+    default:
+        root = document.body;
+        break;
+    }
+    /* start <X, Y> sets offset between top left corner
+       of event in calendar and popup. 10, 10 soo old
+       event is still visible */
+    let offsetX = 10, offsetY = 10;
+    while (element !== root) {
+        offsetX += element.offsetLeft;
+        offsetY += element.offsetTop;
+        element = element.offsetParent;
+    }
+    popup.style.left = offsetX + "px";
+    popup.style.top = offsetY + "px";
+}
+
+/* toggles open/closed status of popup given by id */
+function toggle_popup(popup_id) {
+    let popup = document.getElementById(popup_id);
+    if (popup.classList.contains("visible")) {
+        close_popup(popup);
+    } else {
+        open_popup(popup);
+    }
+}
-- 
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