Add repo-refs control for search page

- only in blobs result

10 files changed, 196 insertions, 28 deletions

diff --git a/app/assets/javascripts/lib/utils/forms.js b/app/assets/javascripts/lib/utils/forms.js
new file mode 100644
index 00000000000..106209a2f3a
--- /dev/null
+++ b/app/assets/javascripts/lib/utils/forms.js
@@ -0,0 +1,12 @@
+export const serializeFormEntries = entries =>
+  entries.reduce((acc, { name, value }) => Object.assign(acc, { [name]: value }), {});
+
+export const serializeForm = form => {
+  const fdata = new FormData(form);
+  const entries = Array.from(fdata.keys()).map(key => {
+    const val = fdata.getAll(key);
+    return { name: key, value: val.length === 1 ? val[0] : val };
+  });
+
+  return serializeFormEntries(entries);
+};
diff --git a/app/assets/javascripts/pages/projects/project.js b/app/assets/javascripts/pages/projects/project.js
index f0d529758d5..332b6811af6 100644
--- a/app/assets/javascripts/pages/projects/project.js
+++ b/app/assets/javascripts/pages/projects/project.js
@@ -1,9 +1,10 @@
-/* eslint-disable func-names, no-var, no-return-assign, one-var, object-shorthand, vars-on-top */
+/* eslint-disable func-names, no-var, no-return-assign, object-shorthand, vars-on-top */
 
 import $ from 'jquery';
 import Cookies from 'js-cookie';
 import { __ } from '~/locale';
-import { visitUrl } from '~/lib/utils/url_utility';
+import { visitUrl, mergeUrlParams } from '~/lib/utils/url_utility';
+import { serializeForm } from '~/lib/utils/forms';
 import axios from '~/lib/utils/axios_utils';
 import flash from '~/flash';
 import projectSelect from '../../project_select';
@@ -107,9 +108,10 @@ export default class Project {
     refLink.href = '#';
 
     return $('.js-project-refs-dropdown').each(function() {
-      var $dropdown, selected;
-      $dropdown = $(this);
-      selected = $dropdown.data('selected');
+      var $dropdown = $(this);
+      var selected = $dropdown.data('selected');
+      var fieldName = $dropdown.data('fieldName');
+      var shouldVisit = Boolean($dropdown.data('visit'));
       return $dropdown.glDropdown({
         data(term, callback) {
           axios
@@ -127,7 +129,7 @@ export default class Project {
         filterRemote: true,
         filterByText: true,
         inputFieldName: $dropdown.data('inputFieldName'),
-        fieldName: $dropdown.data('fieldName'),
+        fieldName,
         renderRow: function(ref) {
           var li = refListItem.cloneNode(false);
 
@@ -158,15 +160,12 @@ export default class Project {
         clicked: function(options) {
           const { e } = options;
           e.preventDefault();
-          if ($('input[name="ref"]').length) {
+          if ($(`input[name="${fieldName}"]`).length) {
             var $form = $dropdown.closest('form');
-
-            var $visit = $dropdown.data('visit');
-            var shouldVisit = $visit ? true : $visit;
             var action = $form.attr('action');
-            var divider = action.indexOf('?') === -1 ? '?' : '&';
+
             if (shouldVisit) {
-              visitUrl(`${action}${divider}${$form.serialize()}`);
+              visitUrl(mergeUrlParams(serializeForm($form[0]), action));
             }
           }
         },
diff --git a/app/assets/javascripts/pages/search/show/search.js b/app/assets/javascripts/pages/search/show/search.js
index 7743e05e748..81b6225cb18 100644
--- a/app/assets/javascripts/pages/search/show/search.js
+++ b/app/assets/javascripts/pages/search/show/search.js
@@ -2,6 +2,7 @@ import $ from 'jquery';
 import Flash from '~/flash';
 import Api from '~/api';
 import { __ } from '~/locale';
+import Project from '~/pages/projects/project';
 
 export default class Search {
   constructor() {
@@ -69,6 +70,8 @@ export default class Search {
       },
       clicked: () => Search.submitSearch(),
     });
+
+    Project.initRefSwitcher();
   }
 
   eventListeners() {
diff --git a/app/views/search/_form.html.haml b/app/views/search/_form.html.haml
index 4c4f3e0298b..464db94b7f4 100644
--- a/app/views/search/_form.html.haml
+++ b/app/views/search/_form.html.haml
@@ -1,6 +1,7 @@
 = form_tag search_path, method: :get, class: 'search-page-form js-search-form' do |f|
   = hidden_field_tag :snippets, params[:snippets]
   = hidden_field_tag :scope, params[:scope]
+  = hidden_field_tag :repository_ref, params[:repository_ref]
 
   .d-lg-flex.align-items-end
     .search-field-holder.form-group.mr-lg-1.mb-lg-0
diff --git a/app/views/search/_results.html.haml b/app/views/search/_results.html.haml
index cb8a8a24be8..de9947528cf 100644
--- a/app/views/search/_results.html.haml
+++ b/app/views/search/_results.html.haml
@@ -2,17 +2,25 @@
   = render partial: "search/results/empty"
   = render_if_exists 'shared/promotions/promote_advanced_search'
 - else
-  .row-content-block
+  .row-content-block.d-md-flex.text-left.align-items-center
     - unless @search_objects.is_a?(Kaminari::PaginatableWithoutCount)
       = search_entries_info(@search_objects, @scope, @search_term)
     - unless @show_snippets
       - if @project
-        - link_to_project = link_to(@project.full_name, [@project.namespace.becomes(Namespace), @project])
-        = _("in project %{link_to_project}").html_safe % { link_to_project: link_to_project }
+        - link_to_project = link_to(@project.full_name, [@project.namespace.becomes(Namespace), @project], class: 'ml-md-1')
+        - if @scope == 'blobs'
+          - repository_ref = params[:repository_ref].to_s.presence || @project.default_branch
+          = s_("SearchCodeResults|in")
+          .mx-md-1
+            = render partial: "shared/ref_switcher", locals: { ref: repository_ref, form_path: request.fullpath, field_name: 'repository_ref' }
+          = s_('SearchCodeResults|of %{link_to_project}').html_safe % { link_to_project: link_to_project }
+        - else
+          = _("in project %{link_to_project}").html_safe % { link_to_project: link_to_project }
       - elsif @group
-        - link_to_group = link_to(@group.name, @group)
+        - link_to_group = link_to(@group.name, @group, class: 'ml-md-1')
         = _("in group %{link_to_group}").html_safe % { link_to_group: link_to_group }
   = render_if_exists 'shared/promotions/promote_advanced_search'
+
   .results.prepend-top-10
     - if @scope == 'commits'
       %ul.content-list.commit-list
diff --git a/app/views/shared/_ref_switcher.html.haml b/app/views/shared/_ref_switcher.html.haml
index 7cbc5810c10..74e0a088656 100644
--- a/app/views/shared/_ref_switcher.html.haml
+++ b/app/views/shared/_ref_switcher.html.haml
@@ -1,12 +1,19 @@
-- dropdown_toggle_text = @ref || @project.default_branch
-= form_tag switch_project_refs_path(@project), method: :get, class: "project-refs-form" do
-  = hidden_field_tag :destination, destination
+- return unless @project
+
+- ref = local_assigns.fetch(:ref, @ref)
+- form_path = local_assigns.fetch(:form_path, switch_project_refs_path(@project))
+- dropdown_toggle_text = ref || @project.default_branch
+- field_name = local_assigns.fetch(:field_name, 'ref')
+
+= form_tag form_path, method: :get, class: "project-refs-form" do
+  - if defined?(destination)
+    = hidden_field_tag :destination, destination
   - if defined?(path)
     = hidden_field_tag :path, path
   - @options && @options.each do |key, value|
     = hidden_field_tag key, value, id: nil
   .dropdown
-    = dropdown_toggle dropdown_toggle_text, { toggle: "dropdown", selected: dropdown_toggle_text, ref: @ref, refs_url: refs_project_path(@project, sort: 'updated_desc'), field_name: 'ref', submit_form_on_click: true, visit: true }, { toggle_class: "js-project-refs-dropdown qa-branches-select" }
+    = dropdown_toggle dropdown_toggle_text, { toggle: "dropdown", selected: dropdown_toggle_text, ref: ref, refs_url: refs_project_path(@project, sort: 'updated_desc'), field_name: field_name, submit_form_on_click: true, visit: true }, { toggle_class: "js-project-refs-dropdown qa-branches-select" }
     .dropdown-menu.dropdown-menu-selectable.git-revision-dropdown.dropdown-menu-paging.qa-branches-dropdown{ class: ("dropdown-menu-right" if local_assigns[:align_right]) }
       .dropdown-page-one
         = dropdown_title _("Switch branch/tag")
diff --git a/changelogs/unreleased/59712-resolve-the-search-problem-issue.yml b/changelogs/unreleased/59712-resolve-the-search-problem-issue.yml
new file mode 100644
index 00000000000..964962cb817
--- /dev/null
+++ b/changelogs/unreleased/59712-resolve-the-search-problem-issue.yml
@@ -0,0 +1,5 @@
+---
+title: Add branch/tags/commits dropdown filter on the search page for searching codes
+merge_request: 28282
+author: minghuan lei
+type: changed
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 8c8985b398c..9b41f32042a 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -9666,6 +9666,12 @@ msgstr ""
 msgid "SearchAutocomplete|in this project"
 msgstr ""
 
+msgid "SearchCodeResults|in"
+msgstr ""
+
+msgid "SearchCodeResults|of %{link_to_project}"
+msgstr ""
+
 msgid "SearchResults|Showing %{from} - %{to} of %{count} %{scope} for \"%{term}\""
 msgstr ""
 
diff --git a/spec/features/search/user_searches_for_code_spec.rb b/spec/features/search/user_searches_for_code_spec.rb
index 71af75640de..5a60991c1bf 100644
--- a/spec/features/search/user_searches_for_code_spec.rb
+++ b/spec/features/search/user_searches_for_code_spec.rb
@@ -6,6 +6,21 @@ describe 'User searches for code' do
   let(:user) { create(:user) }
   let(:project) { create(:project, :repository, namespace: user.namespace) }
 
+  def submit_search(search, with_send_keys: false)
+    page.within('.search') do
+      field = find_field('search')
+      field.fill_in(with: search)
+
+      if with_send_keys
+        field.send_keys(:enter)
+      else
+        click_button("Go")
+      end
+    end
+
+    click_link('Code')
+  end
+
   context 'when signed in' do
     before do
       project.add_maintainer(user)
@@ -15,12 +30,7 @@ describe 'User searches for code' do
     it 'finds a file' do
       visit(project_path(project))
 
-      page.within('.search') do
-        fill_in('search', with: 'application.js')
-        click_button('Go')
-      end
-
-      click_link('Code')
+      submit_search('application.js')
 
       expect(page).to have_selector('.file-content .code')
       expect(page).to have_selector("span.line[lang='javascript']")
@@ -48,6 +58,50 @@ describe 'User searches for code' do
         end
       end
     end
+
+    context 'search code within refs', :js do
+      let(:ref_name) { 'v1.0.0' }
+
+      before do
+        visit(project_tree_path(project, ref_name))
+        submit_search('gitlab-grack', with_send_keys: true)
+      end
+
+      it 'shows ref switcher in code result summary' do
+        expect(find('.js-project-refs-dropdown')).to have_text(ref_name)
+      end
+      it 'persists branch name across search' do
+        find('.btn-search').click
+        expect(find('.js-project-refs-dropdown')).to have_text(ref_name)
+      end
+
+      #  this example is use to test the desgine that the refs is not
+      #  only repersent the branch as well as the tags.
+      it 'ref swither list all the branchs and tags' do
+        find('.js-project-refs-dropdown').click
+        expect(find('.dropdown-page-one .dropdown-content')).to have_link('sha-starting-with-large-number')
+        expect(find('.dropdown-page-one .dropdown-content')).to have_link('v1.0.0')
+      end
+
+      it 'search result changes when refs switched' do
+        expect(find('.search-results')).not_to have_content('path = gitlab-grack')
+        find('.js-project-refs-dropdown').click
+        find('.dropdown-page-one .dropdown-content').click_link('master')
+        expect(find('.search-results')).to have_content('path = gitlab-grack')
+      end
+    end
+
+    it 'no ref switcher shown in issue result summary', :js do
+      issue = create(:issue, title: 'test', project: project)
+      visit(project_tree_path(project))
+      submit_search('test', with_send_keys: true)
+      expect(page).to have_selector('.js-project-refs-dropdown')
+      page.within('.search-filter') do
+        click_link('Issues')
+      end
+      expect(find(:css, '.search-results')).to have_link(issue.title)
+      expect(page).not_to have_selector('.js-project-refs-dropdown')
+    end
   end
 
   context 'when signed out' do
@@ -58,8 +112,7 @@ describe 'User searches for code' do
     end
 
     it 'finds code' do
-      fill_in('search', with: 'rspec')
-      click_button('Go')
+      submit_search('rspec')
 
       page.within('.results') do
         expect(find(:css, '.search-results')).to have_content('Update capybara, rspec-rails, poltergeist to recent versions')
diff --git a/spec/frontend/lib/utils/forms_spec.js b/spec/frontend/lib/utils/forms_spec.js
new file mode 100644
index 00000000000..cac17235f0d
--- /dev/null
+++ b/spec/frontend/lib/utils/forms_spec.js
@@ -0,0 +1,74 @@
+import { serializeForm } from '~/lib/utils/forms';
+
+describe('lib/utils/forms', () => {
+  const createDummyForm = inputs => {
+    const form = document.createElement('form');
+
+    form.innerHTML = inputs
+      .map(({ type, name, value }) => {
+        let str = ``;
+        if (type === 'select') {
+          str = `<select name="${name}">`;
+          value.forEach(v => {
+            if (v.length > 0) {
+              str += `<option value="${v}"></option> `;
+            }
+          });
+          str += `</select>`;
+        } else {
+          str = `<input type="${type}" name="${name}" value="${value}" checked/>`;
+        }
+        return str;
+      })
+      .join('');
+
+    return form;
+  };
+
+  describe('serializeForm', () => {
+    it('returns an object of key values from inputs', () => {
+      const form = createDummyForm([
+        { type: 'text', name: 'foo', value: 'foo-value' },
+        { type: 'text', name: 'bar', value: 'bar-value' },
+      ]);
+
+      const data = serializeForm(form);
+
+      expect(data).toEqual({
+        foo: 'foo-value',
+        bar: 'bar-value',
+      });
+    });
+
+    it('works with select', () => {
+      const form = createDummyForm([
+        { type: 'select', name: 'foo', value: ['foo-value1', 'foo-value2'] },
+        { type: 'text', name: 'bar', value: 'bar-value1' },
+      ]);
+
+      const data = serializeForm(form);
+
+      expect(data).toEqual({
+        foo: 'foo-value1',
+        bar: 'bar-value1',
+      });
+    });
+
+    it('works with multiple inputs of the same name', () => {
+      const form = createDummyForm([
+        { type: 'checkbox', name: 'foo', value: 'foo-value3' },
+        { type: 'checkbox', name: 'foo', value: 'foo-value2' },
+        { type: 'checkbox', name: 'foo', value: 'foo-value1' },
+        { type: 'text', name: 'bar', value: 'bar-value2' },
+        { type: 'text', name: 'bar', value: 'bar-value1' },
+      ]);
+
+      const data = serializeForm(form);
+
+      expect(data).toEqual({
+        foo: ['foo-value3', 'foo-value2', 'foo-value1'],
+        bar: ['bar-value2', 'bar-value1'],
+      });
+    });
+  });
+});