1 files changed, 123 insertions, 0 deletions
diff --git a/app/assets/javascripts/filtered_search/filtered_search_dropdown.js b/app/assets/javascripts/filtered_search/filtered_search_dropdown.js
new file mode 100644
index 00000000000..dd565da507e
--- /dev/null
+++ b/app/assets/javascripts/filtered_search/filtered_search_dropdown.js
@@ -0,0 +1,123 @@
+(() => {
+  const DATA_DROPDOWN_TRIGGER = 'data-dropdown-trigger';
+
+  class FilteredSearchDropdown {
+    constructor(droplab, dropdown, input, filter) {
+      this.droplab = droplab;
+      this.hookId = input && input.getAttribute('data-id');
+      this.input = input;
+      this.filter = filter;
+      this.dropdown = dropdown;
+      this.loadingTemplate = `<div class="filter-dropdown-loading">
+        <i class="fa fa-spinner fa-spin"></i>
+      </div>`;
+      this.bindEvents();
+    }
+
+    bindEvents() {
+      this.itemClickedWrapper = this.itemClicked.bind(this);
+      this.dropdown.addEventListener('click.dl', this.itemClickedWrapper);
+    }
+
+    unbindEvents() {
+      this.dropdown.removeEventListener('click.dl', this.itemClickedWrapper);
+    }
+
+    getCurrentHook() {
+      return this.droplab.hooks.filter(h => h.id === this.hookId)[0] || null;
+    }
+
+    itemClicked(e, getValueFunction) {
+      const { selected } = e.detail;
+
+      if (selected.tagName === 'LI' && selected.innerHTML) {
+        const dataValueSet = gl.DropdownUtils.setDataValueIfSelected(this.filter, selected);
+
+        if (!dataValueSet) {
+          const value = getValueFunction(selected);
+          gl.FilteredSearchDropdownManager.addWordToInput(this.filter, value);
+        }
+
+        this.dismissDropdown();
+        this.dispatchInputEvent();
+      }
+    }
+
+    setAsDropdown() {
+      this.input.setAttribute(DATA_DROPDOWN_TRIGGER, `#${this.dropdown.id}`);
+    }
+
+    setOffset(offset = 0) {
+      if (window.innerWidth > 480) {
+        this.dropdown.style.left = `${offset}px`;
+      } else {
+        this.dropdown.style.left = '0px';
+      }
+    }
+
+    renderContent(forceShowList = false) {
+      const currentHook = this.getCurrentHook();
+      if (forceShowList && currentHook && currentHook.list.hidden) {
+        currentHook.list.show();
+      }
+    }
+
+    render(forceRenderContent = false, forceShowList = false) {
+      this.setAsDropdown();
+
+      const currentHook = this.getCurrentHook();
+      const firstTimeInitialized = currentHook === null;
+
+      if (firstTimeInitialized || forceRenderContent) {
+        this.renderContent(forceShowList);
+      } else if (currentHook.list.list.id !== this.dropdown.id) {
+        this.renderContent(forceShowList);
+      }
+    }
+
+    dismissDropdown() {
+      // Focusing on the input will dismiss dropdown
+      // (default droplab functionality)
+      this.input.focus();
+    }
+
+    dispatchInputEvent() {
+      // Propogate input change to FilteredSearchDropdownManager
+      // so that it can determine which dropdowns to open
+      this.input.dispatchEvent(new CustomEvent('input', {
+        bubbles: true,
+        cancelable: true,
+      }));
+    }
+
+    dispatchFormSubmitEvent() {
+      // dispatchEvent() is necessary as form.submit() does not
+      // trigger event handlers
+      this.input.form.dispatchEvent(new Event('submit'));
+    }
+
+    hideDropdown() {
+      const currentHook = this.getCurrentHook();
+      if (currentHook) {
+        currentHook.list.hide();
+      }
+    }
+
+    resetFilters() {
+      const hook = this.getCurrentHook();
+
+      if (hook) {
+        const data = hook.list.data;
+        const results = data.map((o) => {
+          const updated = o;
+          updated.droplab_hidden = false;
+          return updated;
+        });
+        hook.list.render(results);
+      }
+    }
+  }
+
+  window.gl = window.gl || {};
+  gl.FilteredSearchDropdown = FilteredSearchDropdown;
+})();