adding fullscreen mode

comic_reader.js

@@ -18,6 +18,9 @@ CURRENT_Y = 0
 
 IS_PAGE_MODE = false
 
+MOUSEWHELL_MIN_DELAY = 50
+MOUSEWHELL_WAIT = false
+
 // ===========
 //  UTILITIES
 // ===========
@@ -267,6 +270,35 @@ function handleKeyPress(key, has_ctrl){
         moveReader(false, has_ctrl)
     }
     
+    else if (key == "f"){
+        if (document.fullscreenElement == null){
+            READER_FRAME.requestFullscreen();
+        } else {
+            document.exitFullscreen();
+        }
+        
+    }
+
+}
+
+function handleMouseWhell(deltaY){
+    
+    if (MOUSEWHELL_WAIT){
+        return
+    } else {
+        MOUSEWHELL_WAIT = true
+        setTimeout(() => {
+            MOUSEWHELL_WAIT = false
+        }, MOUSEWHELL_MIN_DELAY)
+    }
+    
+    if (deltaY > 0) {
+        moveReader(true, false)
+    }
+    
+    else {
+        moveReader(false, false)
+    }
 }
 
 // ======
@@ -284,3 +316,7 @@ addEventListener("resize", (event) => {
 addEventListener("keydown", (event) => {
     handleKeyPress(event.key, event.ctrlKey)
 });
+
+addEventListener("wheel", (event) => {
+    handleMouseWhell(event.deltaY)
+});

comic_reader_test.css

@@ -6,7 +6,7 @@ html, body {
 }
 
 body {
-    padding: 1em;
+    padding: 4em;
     height: 100vh;
     background-color: whitesmoke;
 }