Fix/app switcher

src/ui/public/chrome/api/angular.js

@@ -1,7 +1,7 @@
 var $ = require('jquery');
 var _ = require('lodash');
 
-require('../appSwitcher/appSwitcher.less');
+require('../appSwitcher');
 var modules = require('ui/modules');
 var ConfigTemplate = require('ui/ConfigTemplate');
 require('ui/directives/config');
@@ -63,7 +63,7 @@ module.exports = function (chrome, internals) {
           $scope.httpActive = $http.pendingRequests;
           $scope.notifList = require('ui/notify')._notifs;
           $scope.appSwitcherTemplate = new ConfigTemplate({
-            switcher: require('../appSwitcher/appSwitcher.html')
+            switcher: '<app-switcher></app-switcher>'
           });
 
           return chrome;

src/ui/public/chrome/api/nav.js

@@ -25,6 +25,10 @@ module.exports = function (chrome, internals) {
     a.setAttribute('href', link.url);
     link.url = a.href;
     link.lastSubUrl = chrome.getLastSubUrlFor(link.url);
+
+    if (link.url === chrome.getAppUrl()) {
+      link.active = true;
+    }
   });
 
 };

src/ui/public/chrome/appSwitcher/__tests__/appSwitcher.js

@@ -0,0 +1,237 @@
+var sinon = require('auto-release-sinon');
+var ngMock = require('ngMock');
+var $ = require('jquery');
+var expect = require('expect.js');
+var constant = require('lodash').constant;
+var set = require('lodash').set;
+var cloneDeep = require('lodash').cloneDeep;
+var indexBy = require('lodash').indexBy;
+
+require('ui/chrome');
+require('ui/chrome/appSwitcher');
+var DomLocationProvider = require('ui/domLocation');
+
+function findTestSubject() {
+  var subjectSelectors = [].slice.apply(arguments);
+  var $context = subjectSelectors.shift();
+  var $els = $();
+
+  subjectSelectors.forEach(function (subjects) {
+    var selector = subjects.split(/\s+/).map(function (subject) {
+      return '[data-test-subj~="' + subject + '"]';
+    }).join(' ');
+
+    $els = $els.add($context.find(selector));
+  });
+
+  return $els;
+}
+
+describe('appSwitcher directive', function () {
+  var env;
+
+  beforeEach(ngMock.module('kibana'));
+
+  function setup(href, links) {
+    return ngMock.inject(function ($window, $rootScope, $compile, Private) {
+      var domLocation = Private(DomLocationProvider);
+
+      $rootScope.chrome = {
+        getNavLinks: constant(cloneDeep(links)),
+      };
+
+      env = {
+        $scope: $rootScope,
+        $el: $compile($('<app-switcher>'))($rootScope),
+        currentHref: href,
+        location: domLocation
+      };
+
+      Object.defineProperties(domLocation, {
+        href: {
+          get: function () { return env.currentHref; },
+          set: function (val) { return env.currentHref = val; },
+        },
+        reload: {
+          value: sinon.stub()
+        }
+      });
+
+      env.$scope.$digest();
+    });
+  }
+
+  context('when one link is for the active app', function () {
+    var myLink = {
+      active: true,
+      title: 'myLink',
+      url: 'http://localhost:555/app/myApp',
+      lastSubUrl: 'http://localhost:555/app/myApp#/lastSubUrl'
+    };
+
+    var notMyLink = {
+      active: false,
+      title: 'notMyLink',
+      url: 'http://localhost:555/app/notMyApp',
+      lastSubUrl: 'http://localhost:555/app/notMyApp#/lastSubUrl'
+    };
+
+    beforeEach(setup('http://localhost:5555/app/myApp/', [myLink, notMyLink]));
+
+    it('links to the inactive apps base url', function () {
+      var $myLink = findTestSubject(env.$el, 'appLink').eq(0);
+      expect($myLink.prop('href')).to.be(myLink.url);
+      expect($myLink.prop('href')).to.not.be(myLink.lastSubUrl);
+    });
+
+    it('links to the inactive apps last sub url', function () {
+      var $notMyLink = findTestSubject(env.$el, 'appLink').eq(1);
+      expect($notMyLink.prop('href')).to.be(notMyLink.lastSubUrl);
+      expect($notMyLink.prop('href')).to.not.be(notMyLink.url);
+    });
+  });
+
+  context('when none of the links are for the active app', function () {
+    var myLink = {
+      active: false,
+      title: 'myLink',
+      url: 'http://localhost:555/app/myApp',
+      lastSubUrl: 'http://localhost:555/app/myApp#/lastSubUrl'
+    };
+
+    var notMyLink = {
+      active: false,
+      title: 'notMyLink',
+      url: 'http://localhost:555/app/notMyApp',
+      lastSubUrl: 'http://localhost:555/app/notMyApp#/lastSubUrl'
+    };
+
+    beforeEach(setup('http://localhost:5555/app/myApp/', [myLink, notMyLink]));
+
+    it('links to the lastSubUrl for each', function () {
+      var $links = findTestSubject(env.$el, 'appLink');
+      var $myLink = $links.eq(0);
+      var $notMyLink = $links.eq(1);
+
+      expect($myLink.prop('href')).to.be(myLink.lastSubUrl);
+      expect($myLink.prop('href')).to.not.be(myLink.url);
+
+      expect($notMyLink.prop('href')).to.be(notMyLink.lastSubUrl);
+      expect($notMyLink.prop('href')).to.not.be(notMyLink.url);
+    });
+  });
+
+  context('clicking a link with matching href but missing hash', function () {
+    var url = 'http://localhost:555/app/myApp?query=1';
+    beforeEach(setup(url + '#/lastSubUrl', [
+      { url: url }
+    ]));
+
+    it('just prevents propogation (no reload)', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      var $link = findTestSubject(env.$el, 'appLink');
+      expect($link.prop('href')).to.be(url);
+      $link.trigger(event);
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(true);
+    });
+  });
+
+  context('clicking a link that matches entire url', function () {
+    var url = 'http://localhost:555/app/myApp#/lastSubUrl';
+    beforeEach(setup(url, [
+      { url: url }
+    ]));
+
+    it('calls window.location.reload and prevents propogation', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      var $link = findTestSubject(env.$el, 'appLink');
+      expect($link.prop('href')).to.be(env.currentHref);
+      $link.trigger(event);
+
+      expect(env.location.reload.callCount).to.be(1);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(true);
+    });
+  });
+
+  context('clicking a link with matching href but changed hash', function () {
+    var rootUrl = 'http://localhost:555/app/myApp?query=1';
+    var url = rootUrl + '#/lastSubUrl2';
+
+    beforeEach(setup(url + '#/lastSubUrl', [
+      { url: url }
+    ]));
+
+    it('calls window.location.reload and prevents propogation', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      var $link = findTestSubject(env.$el, 'appLink');
+      expect($link.prop('href')).to.be(url);
+      $link.trigger(event);
+
+      expect(env.location.reload.callCount).to.be(1);
+      expect(event.isDefaultPrevented()).to.be(false);
+      expect(event.isPropagationStopped()).to.be(true);
+    });
+  });
+
+  context('clicking a link with matching host', function () {
+    beforeEach(setup('http://localhost:555/someOtherPath', [
+      {
+        active: true,
+        url: 'http://localhost:555/app/myApp'
+      }
+    ]));
+
+    it('allows click through', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      findTestSubject(env.$el, 'appLink').trigger(event);
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+    });
+  });
+
+  context('clicking a link with matching host and path', function () {
+    beforeEach(setup('http://localhost:555/app/myApp?someQuery=true', [
+      {
+        active: true,
+        url: 'http://localhost:555/app/myApp?differentQuery=true'
+      }
+    ]));
+
+    it('allows click through', function () {
+      var event = new $.Event('click');
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+
+      findTestSubject(env.$el, 'appLink').trigger(event);
+
+      expect(env.location.reload.callCount).to.be(0);
+      expect(event.isPropagationStopped()).to.be(false);
+    });
+  });
+
+});

src/ui/public/chrome/appSwitcher/appSwitcher.html

@@ -1,11 +1,18 @@
 <div class="app-links">
-  <div class="app-link" ng-repeat="app in chrome.getNavLinks() | orderBy:'title'">
-    <a ng-href="{{ app.lastSubUrl || app.url }}">
+  <div
+    class="app-link"
+    ng-repeat="link in switcher.getNavLinks() | orderBy:'title'"
+    ng-class="{ active: link.active }">
 
-      <div ng-if="app.icon" ng-style="{ 'background-image': 'url(../' + app.icon + ')' }" class="app-icon"></div>
-      <div ng-if="!app.icon" class="app-icon app-icon-missing">{{app.title[0]}}</div>
+    <a
+      ng-click="switcher.ensureNavigation($event, link)"
+      ng-href="{{ link.active ? link.url : (link.lastSubUrl || link.url) }}"
+      data-test-subj="appLink">
 
-      <div class="app-title">{{ app.title }}</div>
+      <div ng-if="link.icon" ng-style="{ 'background-image': 'url(../' + link.icon + ')' }" class="app-icon"></div>
+      <div ng-if="!link.icon" class="app-icon app-icon-missing">{{ link.title[0] }}</div>
+
+      <div class="app-title">{{ link.title }}</div>
     </a>
   </div>
 </div>

src/ui/public/chrome/appSwitcher/appSwitcher.js

@@ -0,0 +1,51 @@
+var parse = require('url').parse;
+var bindKey = require('lodash').bindKey;
+
+require('../appSwitcher/appSwitcher.less');
+var DomLocationProvider = require('ui/domLocation');
+
+require('ui/modules')
+.get('kibana')
+.directive('appSwitcher', function () {
+  return {
+    restrict: 'E',
+    template: require('./appSwitcher.html'),
+    controllerAs: 'switcher',
+    controller: function ($scope, Private) {
+      var domLocation = Private(DomLocationProvider);
+
+      // since we render this in an isolate scope we can't "require: ^chrome", but
+      // rather than remove all helpfull checks we can just check here.
+      if (!$scope.chrome || !$scope.chrome.getNavLinks) {
+        throw new TypeError('appSwitcher directive requires the "chrome" config-object');
+      }
+
+      this.getNavLinks = bindKey($scope.chrome, 'getNavLinks');
+
+      // links don't cause full-navigation events in certain scenarios
+      // so we force them when needed
+      this.ensureNavigation = function (event, app) {
+        if (event.isDefaultPrevented() || event.altKey || event.metaKey || event.ctrlKey) {
+          return;
+        }
+
+        var toParsed = parse(event.delegateTarget.href);
+        var fromParsed = parse(domLocation.href);
+        var sameProto = toParsed.protocol === fromParsed.protocol;
+        var sameHost = toParsed.host === fromParsed.host;
+        var samePath = toParsed.path === fromParsed.path;
+
+        if (sameProto && sameHost && samePath) {
+          toParsed.hash && domLocation.reload();
+
+          // event.preventDefault() keeps the browser from seeing the new url as an update
+          // and even setting window.location does not mimic that behavior, so instead
+          // we use stopPropagation() to prevent angular from seeing the click and
+          // starting a digest cycle/attempting to handle it in the router.
+          event.stopPropagation();
+        }
+      };
+
+    }
+  };
+});

src/ui/public/chrome/appSwitcher/appSwitcher.less

@@ -1,16 +1,19 @@
 @import (reference) "~ui/styles/variables";
 
 @app-icon-size: 48px;
+@app-icon-padding: 10px;
 
 .app-links {
   text-align: justify;
 
   .app-link {
     display: inline-block;
     vertical-align: top;
-    width: @app-icon-size;
-    margin: 0px 10px;
     text-align: left;
+    width: @app-icon-size + (@app-icon-padding * 2);
+    margin: 0px 10px;
+    padding: @app-icon-padding;
+    border-radius: @border-radius-base;
 
     .app-icon {
       display: block;
@@ -43,6 +46,13 @@
       text-decoration: underline;
     }
 
+    &.active {
+      background: @gray-lighter;
+      .app-title {
+        text-decoration: underline;
+      }
+    }
+
   }
 
 }

src/ui/public/domLocation.js

@@ -0,0 +1,15 @@
+module.exports = function DomLocationProvider($window) {
+  return {
+    reload: function (forceFetch) {
+      $window.location.reload(forceFetch);
+    },
+
+    get href() {
+      return $window.location.href;
+    },
+
+    set href(val) {
+      return ($window.location.href = val);
+    }
+  };
+};