wip(js): add head.html and assets/js

assets/js/modules/components/search-display.js

@@ -0,0 +1,110 @@
+/**
+ * This script make #search-result-wrapper switch to unload or shown automatically.
+ */
+
+const btnSbTrigger = document.getElementById('sidebar-trigger');
+const btnSearchTrigger = document.getElementById('search-trigger');
+const btnCancel = document.getElementById('search-cancel');
+const content = document.querySelectorAll('#main-wrapper>.container>.row');
+const topbarTitle = document.getElementById('topbar-title');
+const search = document.getElementById('search');
+const resultWrapper = document.getElementById('search-result-wrapper');
+const results = document.getElementById('search-results');
+const input = document.getElementById('search-input');
+const hints = document.getElementById('search-hints');
+
+// CSS class names
+const LOADED = 'd-block';
+const UNLOADED = 'd-none';
+const FOCUS = 'input-focus';
+const FLEX = 'd-flex';
+
+/* Actions in mobile screens (Sidebar hidden) */
+class MobileSearchBar {
+  static on() {
+    btnSbTrigger.classList.add(UNLOADED);
+    topbarTitle.classList.add(UNLOADED);
+    btnSearchTrigger.classList.add(UNLOADED);
+    search.classList.add(FLEX);
+    btnCancel.classList.add(LOADED);
+  }
+
+  static off() {
+    btnCancel.classList.remove(LOADED);
+    search.classList.remove(FLEX);
+    btnSbTrigger.classList.remove(UNLOADED);
+    topbarTitle.classList.remove(UNLOADED);
+    btnSearchTrigger.classList.remove(UNLOADED);
+  }
+}
+
+class ResultSwitch {
+  static resultVisible = false;
+
+  static on() {
+    if (!this.resultVisible) {
+      resultWrapper.classList.remove(UNLOADED);
+      content.forEach((el) => {
+        el.classList.add(UNLOADED);
+      });
+      this.resultVisible = true;
+    }
+  }
+
+  static off() {
+    if (this.resultVisible) {
+      results.innerHTML = '';
+
+      if (hints.classList.contains(UNLOADED)) {
+        hints.classList.remove(UNLOADED);
+      }
+
+      resultWrapper.classList.add(UNLOADED);
+      content.forEach((el) => {
+        el.classList.remove(UNLOADED);
+      });
+      input.textContent = '';
+      this.resultVisible = false;
+    }
+  }
+}
+
+function isMobileView() {
+  return btnCancel.classList.contains(LOADED);
+}
+
+export function displaySearch() {
+  btnSearchTrigger.addEventListener('click', () => {
+    MobileSearchBar.on();
+    ResultSwitch.on();
+    input.focus();
+  });
+
+  btnCancel.addEventListener('click', () => {
+    MobileSearchBar.off();
+    ResultSwitch.off();
+  });
+
+  input.addEventListener('focus', () => {
+    search.classList.add(FOCUS);
+  });
+
+  input.addEventListener('focusout', () => {
+    search.classList.remove(FOCUS);
+  });
+
+  input.addEventListener('input', () => {
+    if (input.value === '') {
+      if (isMobileView()) {
+        hints.classList.remove(UNLOADED);
+      } else {
+        ResultSwitch.off();
+      }
+    } else {
+      ResultSwitch.on();
+      if (isMobileView()) {
+        hints.classList.add(UNLOADED);
+      }
+    }
+  });
+}