From cf2c56c7061b7ed40fdd3b40a352ddb9c9b7371f Mon Sep 17 00:00:00 2001
From: alexwl <alexey.a.kiryushin@gmail.com>
Date: Tue, 2 Oct 2018 13:17:04 +0300
Subject: Initial commit

---
 .../app/components/input-with-autocomplete.js      | 131 +++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 javascript/app/components/input-with-autocomplete.js

(limited to 'javascript/app/components/input-with-autocomplete.js')

diff --git a/javascript/app/components/input-with-autocomplete.js b/javascript/app/components/input-with-autocomplete.js
new file mode 100644
index 0000000..2b09ea4
--- /dev/null
+++ b/javascript/app/components/input-with-autocomplete.js
@@ -0,0 +1,131 @@
+import Ember from 'ember';
+export default Ember.Component.extend({
+  store : Ember.inject.service('store'),  
+  highlightedItemIndex: -1,
+  items : [],
+  query: null,
+  didInsertElement() {
+    const $input = Ember.$(this.element).find(".search-input");
+    const $autocompleteContainer = Ember.$(this.element).find(".autocomplete-container");    
+    this.$input = $input;        
+    this.$autocompleteContainer = $autocompleteContainer;    
+    const width = $input.width() + 300;
+    $autocompleteContainer.css({
+      "width" : width+"px",
+      "top" : $input.outerHeight()
+    });
+    $input.keyup((e) => {
+      if(e.which === 13) {
+        this.onEnter();
+      } else if(e.which === 27) {
+        this.onEsc();
+      } else if(e.which === 40) {
+        this.onDown();
+      } else if(e.which === 38) {
+        this.onUp();
+      } 
+    });
+    $input.focusin(() => {      
+      this.showAutocompleteList();
+    });
+    $input.focusout(() => {
+      //Timeout is needed to make sure that click event fires
+      Ember.run.later((() => {
+        this.hideAutocompleteList();
+      }), 100);
+    });
+  },
+  willDestroyElement() {
+    this._super(...arguments);
+    this.$input.off('keyup');
+    this.$input.off('focusin');
+    this.$input.off('focusout');
+  },
+  onEnter() {
+    if(this.get('highlightedItemIndex') !== -1) {
+      const item = this.get('items')[this.get('highlightedItemIndex')];
+      if(item) {
+        this.hideAutocompleteList();
+        this.get('selectItem')(item);
+      }
+    } else {
+      this.hideAutocompleteList();
+      this.get('onSubmit')(this.get('query'));
+    }
+  },
+  onEsc() {
+    this.hideAutocompleteList();
+  },
+  onDown() {
+    this.showAutocompleteList();
+    const index = this.get('highlightedItemIndex');
+    const items = this.get('items');
+    const itemsCount = items.length;
+    if(itemsCount > 0) {
+      if(index !== -1) {
+        if(index === itemsCount - 1) {
+          this.set('highlightedItemIndex',0);
+        } else {
+          this.set('highlightedItemIndex',index+1);
+        }
+      } else {
+        this.set('highlightedItemIndex',0);
+      }
+    }
+  },
+  onUp() {
+    this.showAutocompleteList();
+    const index = this.get('highlightedItemIndex');
+    const items = this.get('items');
+    const itemsCount = items.length;
+    if(itemsCount > 0) {
+      if(index !== -1) {
+        if(index === 0) {
+          this.set('highlightedItemIndex',itemsCount - 1);
+        } else {
+          this.set('highlightedItemIndex',index - 1);
+        }
+      } else {
+        this.set('highlightedItemIndex',itemsCount - 1);
+      }
+    }
+  },
+  hideAutocompleteList() {
+    this.set('highlightedItemIndex',-1);
+    this.$autocompleteContainer.css({
+      "display":"none",
+    });
+  },
+  showAutocompleteList() {
+    this.$autocompleteContainer.css({
+      "display":"block"
+    });
+  },
+  queryObserver : Ember.observer("query",function() {
+    if(this.get('query')) {
+      const perPage = this.get('maxItems') ? this.get('maxItems') : 10;
+      const url = this.get('createSearchUrlFunction')(this.get('query')) + "?per_page=" + perPage;
+      Ember.run.debounce(this, () => {
+        this.get('store').loadFromUrlPaginated(url).then((result) => {
+          Ember.run.next(() => {
+            this.set('items',result.items);
+          });
+        });
+      }, 400);
+      this.showAutocompleteList();
+    } else {
+      this.hideAutocompleteList();
+      this.set('items',[]);
+    }
+  }),
+  actions : {
+    onSubmit() {
+      this.hideAutocompleteList();
+      this.get('onSubmit')(this.get('query'));
+    },
+    goToDefinition (item) {
+      this.hideAutocompleteList();
+      this.get('selectItem')(item);
+    }
+  }
+});
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