Add ability to maximize popovers.HEADmaster

2 files changed, 67 insertions, 3 deletions

diff --git a/main.js b/main.js
index d86651e..a711f2c 100644
--- a/main.js
+++ b/main.js
@@ -1946,6 +1946,9 @@ map.addLayer(vectorLayer2);
       return;
     }
     const popoverTip = Popover.getInstance(popup).tip;
+    if (popoverTip.classList.contains('popover-maximized')) {
+      return;
+    }
     pageNode.classList.add('grabbing-area-grabbed');
 
     if (!popoverTip.classList.contains('popover-detached')) {
@@ -2045,6 +2048,30 @@ map.addLayer(vectorLayer2);
     return onClickPageChange(event, +1);
   };
 
+  const btnExpand = document.createElement('button');
+  btnExpand.classList.add('popover-button', 'popover-button-expand');
+  btnExpand.setAttribute('type', 'button');
+  const btnExpandTitle = 'Förstora';
+  const btnExpandTitle2 = 'Förminska';
+  btnExpand.setAttribute('aria-label', btnExpand.title);
+  btnExpand.onclick = function(event) {
+    if (popover === null || popover.tip === null) {
+      return;
+    }
+    if (!popover.tip.classList.contains('popover-maximized')) {
+      popover.tip.classList.add('popover-maximized');
+      btnExpand.classList.replace('popover-button-expand', 'popover-button-reduce');
+      btnExpand.title = btnExpandTitle2;
+      btnExpand.setAttribute('aria-label', btnExpand.title);
+    } else {
+      popover.tip.classList.remove('popover-maximized');
+      btnExpand.classList.replace('popover-button-reduce', 'popover-button-expand');
+      btnExpand.title = btnExpandTitle;
+      btnExpand.setAttribute('aria-label', btnExpand.title);
+    }
+    setTimeout(function() { btnExpand.blur() }, 100);
+  };
+
   const btnClose = document.createElement('button');
   btnClose.classList.add('popover-button', 'popover-button-close');
   btnClose.setAttribute('type', 'button');
@@ -2059,6 +2086,7 @@ map.addLayer(vectorLayer2);
 
   header.appendChild(btnPrev);
   header.appendChild(btnNext);
+  header.appendChild(btnExpand);
   header.appendChild(btnClose);
 
   const container0 = map.getViewport().getElementsByClassName('ol-overlaycontainer-stopevent')[0];
@@ -2087,6 +2115,14 @@ map.addLayer(vectorLayer2);
     btnPrev.classList.add('d-none', 'disabled');
     btnNext.classList.add('d-none', 'disabled');
 
+    /* never start in maximized mode */
+    if (popover !== null && popover.tip !== null) {
+      popover.tip.classList.remove('popover-maximized');
+    }
+    btnExpand.classList.replace('popover-button-reduce', 'popover-button-expand');
+    btnExpand.title = btnExpandTitle;
+    btnExpand.setAttribute('aria-label', btnExpand.title);
+
     map.forEachFeatureAtPixel(event.pixel, function(feature, layer) {
       const properties = feature.getProperties();
       const def = layers[properties.layer];
diff --git a/style.css b/style.css
index 10e50e1..2d7e723 100644
--- a/style.css
+++ b/style.css
@@ -415,21 +415,49 @@ html, body {
 .popover-header .popover-button-next {
   --popover-button-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath transform='scale(1.3799) translate(-2.2025 -2.2025)' d='M6 12.796V3.204L11.481 8zm.659.753 5.48-4.796a1 1 0 0 0 0-1.506L6.66 2.451C6.011 1.885 5 2.345 5 3.204v9.592a1 1 0 0 0 1.659.753'/%3e%3c/svg%3e");
 }
+.popover-header .popover-button-expand {
+  --popover-button-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M5.828 10.172a.5.5 0 0 0-.707 0l-4.096 4.096V11.5a.5.5 0 0 0-1 0v3.975a.5.5 0 0 0 .5.5H4.5a.5.5 0 0 0 0-1H1.732l4.096-4.096a.5.5 0 0 0 0-.707m4.344-4.344a.5.5 0 0 0 .707 0l4.096-4.096V4.5a.5.5 0 1 0 1 0V.525a.5.5 0 0 0-.5-.5H11.5a.5.5 0 0 0 0 1h2.768l-4.096 4.096a.5.5 0 0 0 0 .707'/%3e%3c/svg%3e");
+}
+.popover-header .popover-button-reduce {
+  --popover-button-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.172 15.828a.5.5 0 0 0 .707 0l4.096-4.096V14.5a.5.5 0 1 0 1 0v-3.975a.5.5 0 0 0-.5-.5H1.5a.5.5 0 0 0 0 1h2.768L.172 15.121a.5.5 0 0 0 0 .707M15.828.172a.5.5 0 0 0-.707 0l-4.096 4.096V1.5a.5.5 0 1 0-1 0v3.975a.5.5 0 0 0 .5.5H14.5a.5.5 0 0 0 0-1h-2.768L15.828.879a.5.5 0 0 0 0-.707'/%3e%3c/svg%3e");
+}
 .popover-header .popover-button-close {
   --popover-button-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath transform='scale(1.3332) translate(-2 -2)' d='M2.146 2.854a.5.5 0 1 1 .708-.708L8 7.293l5.146-5.147a.5.5 0 0 1 .708.708L8.707 8l5.147 5.146a.5.5 0 0 1-.708.708L8 8.707l-5.146 5.147a.5.5 0 0 1-.708-.708L7.293 8z'/%3e%3c/svg%3e");
 }
 
-.popover .grabbing-area {
+.popover:not(.popover-maximized) .grabbing-area {
   cursor: move; /* fallback if grab cursor is unsupported */
   cursor: grab;
   cursor: -moz-grab;
   cursor: -webkit-grab;
 }
-.popover .grabbing-area.grabbing-area-grabbed {
+.popover:not(.popover-maximized) .grabbing-area.grabbing-area-grabbed {
   cursor: grabbing;
   cursor: -moz-grabbing;
   cursor: -webkit-grabbing;
 }
-.popover.popover-detached > .popover-arrow {
+.popover.popover-detached > .popover-arrow,
+.popover.popover-maximized > .popover-arrow {
   display: none;
 }
+.popover.popover-maximized {
+  position: relative !important;
+  inset: 0 !important;
+  transform: none !important;
+  margin: calc(.75*var(--map-container-padding)) auto !important;
+  --bs-popover-max-width: calc(100vw - 1.5*var(--map-container-padding));
+  height: calc(100vh - 1.5*var(--map-container-padding));
+  animation: fade-in .25s ease-in-out both;
+}
+@media screen and (min-width: 1280px) {
+  .popover.popover-maximized {
+    --bs-popover-max-width: 1280px;
+  }
+}
+@media screen and (min-height: 1920px) {
+  .popover.popover-maximized {
+    height: 1920px;
+    margin-top: calc(50vh - 960px) !important;
+    margin-bottom: calc(50vh - 960px) !important;
+  }
+}