Feature/lite 29476 create menu component (#48)

* LITE-29476 add menu component

* LITE-29477 add story to menu component

Author: paulinaczybir

components/src/assets/styles/variables.styl

@@ -1 +1,2 @@
-border-color = #e0e0e0;
+border-color = #e0e0e0;
+base-text-color = #212121;

components/src/index.js

@@ -14,6 +14,7 @@ export { default as Textfield } from '~widgets/textfield/widget.vue';
 export { default as Table } from '~widgets/table/widget.vue';
 export { default as ComplexTable } from './widgets/complexTable/widget.vue';
 export { default as Button } from '~widgets/button/widget.vue';
+export { default as Menu } from '~widgets/menu/widget.vue';
 
 export { default as store } from '~core/store';
 export { default as bus } from '~core/eventBus';

components/src/stories/Menu.stories.js

@@ -0,0 +1,31 @@
+import Menu from '~widgets/menu/widget.vue';
+import Button from '~widgets/button/widget.vue';
+import registerWidget from '~core/registerWidget';
+
+registerWidget('ui-menu', Menu);
+registerWidget('ui-button', Button);
+
+export const Component = {
+  render: (args) => ({
+    setup() {
+      return {args};
+    },
+    template: `<ui-menu>
+    <ui-button 
+      slot="trigger" 
+      text="open menu" 
+    />
+    <div style="padding:8px 16px; width:300px; border:1px solid black;" slot="content">
+      <p>item</p>
+    </div>
+  </ui-menu>`
+  }),
+};
+
+export default {
+  title: 'Components/Menu',
+  component: Menu,
+  parameters: {
+    layout: 'centered',
+  },
+};

components/src/widgets/menu/widget.spec.js

@@ -0,0 +1,72 @@
+import { mount } from '@vue/test-utils'
+import Menu from './widget';
+
+describe('Menu component', () => {
+  describe('methods', () => {
+    describe('#toggle', () => {
+      it('toggles menu to true when clicking', () => {
+        const wrapper = mount(Menu);
+        wrapper.vm.showMenu = false;
+        wrapper.vm.toggle(wrapper.vm.showMenu);
+
+        expect(wrapper.vm.showMenu).toBe(true);
+      });
+
+      it('toggles menu back to false when clicking', () => {
+        const wrapper = mount(Menu);
+        wrapper.vm.showMenu = true;
+        wrapper.vm.toggle(wrapper.vm.showMenu);
+
+        expect(wrapper.vm.showMenu).toBe(false);
+      });
+    });
+
+    describe('#handleClickOutside', () => {
+
+      it('hides menu content when clicked outside menu', () => {
+        const event = { target: 'another value'};
+        const wrapper = mount(Menu);
+        wrapper.vm.menu = { contains: jest.fn().mockReturnValue(false) };
+        wrapper.vm.showMenu = true;
+        wrapper.vm.handleClickOutside(event);
+
+        expect(wrapper.vm.showMenu).toBe(false);
+      });
+
+      it('does not hide menu content when clicked inside menu', () => {
+        const event = { target: 'some value'};
+        const wrapper = mount(Menu);
+        wrapper.vm.menu = { contains: jest.fn().mockReturnValue(true) };
+        wrapper.vm.showMenu = true;
+        wrapper.vm.handleClickOutside(event);
+
+        expect(wrapper.vm.showMenu).toBe(true);
+      });
+    });
+  });
+
+  describe('onMounted', () => {
+    it('adds up event listener on component mount', () => {
+      const addEventListenerSpy = jest.spyOn(document, 'addEventListener');
+  
+      mount(Menu);
+
+      expect(addEventListenerSpy).toHaveBeenCalledWith('click', expect.any(Function));
+  
+      addEventListenerSpy.mockRestore();
+    });
+  });
+
+  describe('onUnmounted', () => {
+    it('cleans up event listener on component unmount', async () => {
+      const removeEventListenerSpy = jest.spyOn(document, 'removeEventListener');
+  
+      const wrapper = mount(Menu);
+      await wrapper.unmount();
+  
+      expect(removeEventListenerSpy).toHaveBeenCalledWith('click', expect.any(Function));
+  
+      removeEventListenerSpy.mockRestore();
+    });
+  })
+});

components/src/widgets/menu/widget.vue

@@ -0,0 +1,61 @@
+<template>
+  <div
+    ref="menu"
+    class="menu"
+  >
+    <div 
+      class="menu-trigger" 
+      @click.stop="toggle"
+    >
+      <slot name="trigger" />
+    </div>
+    
+    <div class="menu-content-wrapper">
+      <div 
+        v-if="showMenu"
+        class="menu-content"
+        @click.stop
+      >
+        <slot name="content" />
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+  import { onMounted, onUnmounted, ref } from 'vue'
+
+  const showMenu = ref(false)
+  const menu = ref(null)
+
+  const toggle = () => {
+    showMenu.value = !showMenu.value;
+  }
+
+  const handleClickOutside = (event) => {
+    if (menu.value && !menu.value.contains(event.target)) {
+      showMenu.value = false;
+    }
+  }
+
+  onMounted(() => {
+    document.addEventListener("click", handleClickOutside)
+  })
+
+  onUnmounted(() => {
+    document.removeEventListener("click", handleClickOutside)
+  })
+</script>
+
+<style lang="stylus" scoped>
+
+  .menu-content-wrapper {
+    position: relative;
+  }
+
+  .menu-content {
+    position: absolute;
+    top: 0;
+    left: 0;
+  }
+</style>

components/src/widgets/textfield/widget.vue

@@ -61,14 +61,16 @@ export default {
 </script>
 
 <style lang="stylus">
+@import '../../assets/styles/common.styl';
+
 .text-field {
   font-family: 'Roboto';
   font-size: 14px;
   line-height: 20px;
   font-weight: 400;
   display: flex;
   flex-flow: column nowrap;
-  color: #212121;
+  color: base-text-color;
 
   label {
     font-weight 500;