Feat/sustain hooks

addon/components/flexi-sustain.js

@@ -18,7 +18,7 @@ const component = Component.extend({
   copy: false,
   expires: null,
 
-  didInsertElement() {
+  willInsertElement() {
     let element = this.element || this._renderNode;
     let properties = this.getProperties('label', 'component', 'model', 'copy', 'expires');
 
@@ -27,7 +27,7 @@ const component = Component.extend({
   },
 
   willDestroyElement() {
-    this.get('sustains').uninstall(this.element || this._renderNode, this.get('sustain'));
+    this.get('sustains').uninstall(this.element || this._renderNode, this.get('label'));
     this._super();
   },
 

addon/lib/sustain.js

@@ -7,6 +7,8 @@ const {
   Object: Obj
   } = Ember;
 
+const DEFAULT_EXPIRES = 1000 * 5; // 5s
+
 export default Obj.extend({
   _isSustainFactory: true,
 
@@ -17,7 +19,7 @@ export default Obj.extend({
   label: null,
   model: null,
   copy: false,
-  expires: 1000 * 5, // 5s
+  expires: DEFAULT_EXPIRES,
 
   // the element where the content should currently be rendered
   parent: null,
@@ -31,6 +33,7 @@ export default Obj.extend({
 
   // caches the teardown handler
   removeTimeout: null,
+  storeTimeout: null,
 
   // caches clone info
   _previousParent: null,
@@ -53,16 +56,26 @@ export default Obj.extend({
       this._previousClone = this.cloneNodeRange();
     }
 
+    this.scheduleStorage();
     this.scheduleRemove();
+
+    this.triggerHook('willMove');
+  },
+
+  triggerHook(name) {
+    if (this._component[name]) {
+      this._component[name]();
+    }
+    this._component.trigger(name);
   },
 
   // called each time the location of parent has changed
   insert(to) {
     run.cancel(this.removeTimeout);
+    run.cancel(this.storeTimeout);
 
     // initial insert
     if (!this._isReady) {
-
       this.parent = to.parent;
       return;
     }
@@ -72,8 +85,10 @@ export default Obj.extend({
       appendCachedRange(to.parent, this._cachedRange);
       this._cachedRange = null;
     } else {
+      this.triggerHook('willMove');
       appendRange(to.parent, this.range.firstNode, this.range.lastNode);
     }
+    this.triggerHook('didMove');
 
     // leave copy in old location
     if (this._previousClone) {
@@ -106,11 +121,11 @@ export default Obj.extend({
     let node = this.range.firstNode;
     let list = [];
 
-    list.push(node);
     while (node !== this.range.lastNode) {
       list.push(node);
       node = node.nextSibling;
     }
+    list.push(node);
 
     return list;
   },
@@ -125,6 +140,14 @@ export default Obj.extend({
     return list;
   },
 
+  scheduleStorage() {
+    this.storeTimeout = run.next(this, this.store);
+  },
+
+  store() {
+    appendRange(this._fragment, this.range.firstNode, this.range.lastNode);
+  },
+
   scheduleRemove() {
     let expires = this.get('expires');
 
@@ -139,6 +162,7 @@ export default Obj.extend({
     if (this.parent && this.parent === this._component.element) {
       return;
     }
+
     this.destroy();
   },
 
@@ -173,6 +197,7 @@ export default Obj.extend({
 
     if (this.parent) {
       appendRange(this.parent, this.range.firstNode, this.range.lastNode);
+      this.triggerHook('didMove');
     }
   },
 
@@ -189,20 +214,24 @@ export default Obj.extend({
 
     this._component.set('model', model);
 
-    let _super = this._component.get('didInsertElement');
+    let _super = this._component.willInsertElement;
 
-    this._component.set('didInsertElement', () => {
+    this._component.willInsertElement = () => {
       this.isReady();
       if (_super) {
-        _super();
+        _super.call(this._component);
       }
-    });
+    };
     this._fragment = this._component.renderToElement();
   },
 
   init() {
     this._super();
     this.setupComponent();
+
+    if (!this.expires && this.expires !== 0) {
+      this.expires = DEFAULT_EXPIRES;
+    }
   }
 
 });

tests/acceptance/sustain-hooks-test.js

@@ -0,0 +1,39 @@
+import { test } from 'qunit';
+import Ember from 'ember';
+import moduleForAcceptance from '../../tests/helpers/module-for-acceptance';
+
+const {
+  run
+  } = Ember;
+
+moduleForAcceptance('Acceptance | sustain hooks');
+
+test('Testing sustain-hooks', function(assert) {
+  visit('/tests/sustain-hooks');
+
+  andThen(() => {
+    assert.equal(currentURL(), '/tests/sustain-hooks');
+
+    let registry = this.application.__container__.lookup('-view-registry:main') || Ember.View.views;
+    let component = registry['sustain-hooks-test'];
+
+    assert.ok(component.get('didMoveTriggered'), 'didMove triggers on initial insert');
+    assert.ok(component.get('didMoveEvent'), 'didMove event triggers on initial insert');
+
+    assert.notOk(component.get('willMoveTriggered'), 'willMove does not trigger on initial insert');
+    assert.notOk(component.get('willMoveEvent'), 'willMove event does not trigger on initial insert');
+
+    assert.ok(component.get('insertTriggered'), 'didInsertElement properly triggers its super');
+
+    let controller = this.application.__container__.lookup('controller:tests/sustain-hooks');
+
+    run(() => {
+      controller.set('showSustain', false);
+    });
+
+    andThen(() => {
+      assert.ok(component.get('willMoveTriggered'), 'willMove triggers when leaving a location');
+      assert.ok(component.get('willMoveEvent'), 'willMove event triggers when leaving a location');
+    });
+  });
+});

tests/acceptance/sustain-test.js

@@ -9,18 +9,29 @@ test('visiting /tests/sustain', function(assert) {
   andThen(() => {
     assert.equal(currentURL(), '/tests/sustain', 'We transitioned to the initial route');
 
-    assert.equal(find('h2.sustain-test').text(), 'I ought to be sustained', 'We rendered the sustain');
+    assert.equal(find('h2.sustain-test').eq(0).text(), 'I ought to be sustained', 'We rendered the sustain');
     let id1 = find('layout.sustain-test').get(0).id;
+    let id2 = find('layout.sustain-test').get(1).id;
+    let children = find('.tagless-stuff');
+
+    assert.ok(id2, 'we found two IDs');
+    assert.equal(children.length, 2, 'we have two tagless children');
 
     click('#next-sustain-test-page');
 
     andThen(() => {
       assert.equal(currentURL(), '/tests/sustain-b', 'We transitioned to the next route');
 
-      assert.equal(find('h2.sustain-test').text(), 'I ought to be sustained', 'We rendered the sustain on the next page');
-      let id2 = find('layout.sustain-test').get(0).id;
+      assert.equal(find('h2.sustain-test').eq(0).text(), 'I ought to be sustained', 'We rendered the sustain on the next page');
+      let id3 = find('layout.sustain-test').get(0).id;
+      let id4 = find('layout.sustain-test').get(1).id;
+      let children = find('.tagless-stuff');
+
+      assert.ok(id4, 'we found two IDs');
+      assert.equal(children.length, 2, 'we still have two tagless children');
 
-      assert.equal(id1, id2, 'We rendered the identical sustain');
+      assert.equal(id1, id3, 'We rendered the identical sustain');
+      assert.equal(id2, id4, 'We rendered the identical tagless sustain');
     });
 
   });

tests/dummy/app/router.js

@@ -16,6 +16,7 @@ Router.map(function() {
     this.route('sustain-no-layout');
     this.route('sustain-labels');
     this.route('sustain-labels-2');
+    this.route('sustain-hooks');
   });
 
   this.route('docs', function() {

tests/dummy/app/routes/docs/sustain/template.hbs

@@ -59,6 +59,19 @@
     </p>
     {{code-snippet name='sustain-6.hbs'}}
 
+    <h4>Lifecycle Hooks</h4>
+    <p>
+      The component being sustained has access to two new hooks: `willMove` and `didMove`.
+      For both, a method by that name on your component will trigger before the event fires.
+    </p>
+    <ul>
+      <li>willMove: fires before a component instance leaves a location</li>
+      <li>didMove: fires when a component instance has entered a location</li>
+    </ul>
+    <p>
+      On the initial render and insertion of a sustained component, only `didMove` triggers.
+    </p>
+
   </box>
 </box>
 

tests/dummy/app/routes/tests/sustain-b/template.hbs

@@ -1 +1,2 @@
-{{sustain 'tests/sustain/components/test-title'}}
+{{sustain 'tests/sustain/components/test-title'}}
+{{sustain 'tests/sustain/components/tagless-title'}}

tests/dummy/app/routes/tests/sustain-hooks/controller.js

@@ -0,0 +1,5 @@
+import Ember from 'ember';
+
+export default Ember.Controller.extend({
+  showSustain: true
+});

tests/dummy/app/routes/tests/sustain-hooks/has-hooks/component.js

@@ -0,0 +1,39 @@
+import Ember from 'ember';
+
+const {
+  Component,
+  on
+  } = Ember;
+
+export default Component.extend({
+  elementId: 'sustain-hooks-test',
+
+  insertTriggered: false,
+  willMoveTriggered: false,
+  didMoveTriggered: false,
+
+  willMoveEvent: false,
+  didMoveEvent: false,
+
+  didMove() {
+    this.set('didMoveTriggered', true);
+  },
+
+  willMove() {
+    this.set('willMoveTriggered', true);
+  },
+
+  _onDidMove: on('didMove', function() {
+    this.set('didMoveEvent', true);
+  }),
+
+  _onWillMove: on('willMove', function() {
+    this.set('willMoveEvent', true);
+  }),
+
+  willInsertElement() {
+    this._super();
+    this.set('insertTriggered', true);
+  }
+
+});

tests/dummy/app/routes/tests/sustain-hooks/has-hooks/template.hbs

@@ -0,0 +1 @@
+<h1>Rendered!</h1>

tests/dummy/app/routes/tests/sustain-hooks/route.js

@@ -0,0 +1,4 @@
+import Ember from 'ember';
+
+export default Ember.Route.extend({
+});

tests/dummy/app/routes/tests/sustain-hooks/template.hbs

@@ -0,0 +1,3 @@
+{{#if showSustain}}
+  {{sustain "tests/sustain-hooks/has-hooks"}}
+{{/if}}

tests/dummy/app/routes/tests/sustain/components/tagless-title/component.js

@@ -0,0 +1,7 @@
+import Ember from 'ember';
+import layout from './template';
+
+export default Ember.Component.extend({
+  layout,
+  tagName: ''
+});

tests/dummy/app/routes/tests/sustain/components/tagless-title/template.hbs

@@ -0,0 +1,7 @@
+{{#flexi-layout tagName="layout" class="sustain-test tagless-stuff flexi-layout"}}
+  <h2 class="sustain-test">I ought to be sustained</h2>
+  <p>If I was, the component above's ID will be identical.</p>
+{{/flexi-layout}}
+<div class="tagless-stuff">
+  <h3>More Tagless Stuff</h3>
+</div>

tests/dummy/app/routes/tests/sustain/template.hbs

@@ -1,2 +1,3 @@
 {{#link-to 'tests.sustain-b' id="next-sustain-test-page"}}Go to B{{/link-to}}
-{{sustain 'tests/sustain/components/test-title'}}
+{{sustain 'tests/sustain/components/test-title'}}
+{{sustain 'tests/sustain/components/tagless-title'}}