From b1a786071e085cfb04da5cf5ce3a955f42618571 Mon Sep 17 00:00:00 2001
From: Bruno Alves de Faria <brunoalvesdefaria@gmail.com>
Date: Sun, 4 Sep 2016 22:03:36 -0300
Subject: [PATCH] AWV-3: Creating mixin for form button components

---
 .../ohif-core/client/components/base/index.js |   1 +
 .../ohif-core/client/components/base/mixin.js |   5 +
 .../client/components/base/mixins/button.js   |  38 ++++++
 .../client/components/base/mixins/formItem.js |  26 ++++
 .../components/bootstrap/form/button.html     |   2 +-
 .../viewer/cineDialog/cineDialog.html         |  25 ++--
 .../viewer/cineDialog/cineDialog.js           | 123 +++++++++++-------
 7 files changed, 157 insertions(+), 63 deletions(-)
 create mode 100644 Packages/ohif-core/client/components/base/mixins/button.js

diff --git a/Packages/ohif-core/client/components/base/index.js b/Packages/ohif-core/client/components/base/index.js
index 86401060d..4e3539a0f 100644
--- a/Packages/ohif-core/client/components/base/index.js
+++ b/Packages/ohif-core/client/components/base/index.js
@@ -8,6 +8,7 @@ import './section/section.html';
 import './section/section.js';
 
 // Mixins
+import './mixins/button.js';
 import './mixins/component.js';
 import './mixins/form.js';
 import './mixins/formItem.js';
diff --git a/Packages/ohif-core/client/components/base/mixin.js b/Packages/ohif-core/client/components/base/mixin.js
index eee820828..355ec1b6b 100644
--- a/Packages/ohif-core/client/components/base/mixin.js
+++ b/Packages/ohif-core/client/components/base/mixin.js
@@ -28,6 +28,11 @@ class Mixin {
             // Get the dependent mixin to be initizalized
             const mixin = Mixin.getMixin(dependency);
 
+            // Throw an error if a cyclic dependency was found on this mixin
+            if (mixin === this) {
+                throw new Error(`Mixin ${dependency} has a cyclic dependency.`);
+            }
+
             // Initizalize the mixin dependencies recursively
             mixin.init(template, data, applied, behaviors);
         });
diff --git a/Packages/ohif-core/client/components/base/mixins/button.js b/Packages/ohif-core/client/components/base/mixins/button.js
new file mode 100644
index 000000000..2c04eceb0
--- /dev/null
+++ b/Packages/ohif-core/client/components/base/mixins/button.js
@@ -0,0 +1,38 @@
+import { OHIF } from 'meteor/ohif:core';
+import { Template } from 'meteor/templating';
+
+/*
+ * input: controls a button
+ */
+OHIF.mixins.button = new OHIF.Mixin({
+    dependencies: 'formItem',
+    composition: {
+        onRendered() {
+            const instance = Template.instance();
+            const component = instance.component;
+
+            // Set the element to be controlled
+            component.$element = instance.$('button:first');
+        },
+
+        events: {
+            'click button'(event, instance) {
+                const component = instance.component;
+
+                // Extract the action and the params
+                const { action, params } = instance.data;
+
+                // Get the current component's API
+                const api = component.getApi();
+
+                // Stop here if no API or action was defined
+                if (!api || !action || typeof api[action] !== 'function') {
+                    return;
+                }
+
+                // Call the defined action function
+                api[action].call(this, params);
+            }
+        }
+    }
+});
diff --git a/Packages/ohif-core/client/components/base/mixins/formItem.js b/Packages/ohif-core/client/components/base/mixins/formItem.js
index 88b7c4ae8..5bf2ab9f3 100644
--- a/Packages/ohif-core/client/components/base/mixins/formItem.js
+++ b/Packages/ohif-core/client/components/base/mixins/formItem.js
@@ -140,6 +140,32 @@ OHIF.mixins.formItem = new OHIF.Mixin({
                 }
             };
 
+            // Get the current component API
+            component.getApi = () => {
+                const api = instance.data.api;
+
+                // Check if the API was not given
+                if (!api) {
+                    // Stop here if the component is form and API was not given
+                    if (component.isForm) {
+                        return;
+                    }
+
+                    // Get the current component's form
+                    const form = component.getForm();
+
+                    // Stop here if the component has no form
+                    if (!form) {
+                        return;
+                    }
+
+                    return form.getApi();
+                }
+
+                // Return the given API
+                return api;
+            };
+
             // Check if the component value is valid in its form's schema
             component.validate = () => {
                 // Get the component's form
diff --git a/Packages/ohif-core/client/components/bootstrap/form/button.html b/Packages/ohif-core/client/components/bootstrap/form/button.html
index f48add25d..5a33a716f 100644
--- a/Packages/ohif-core/client/components/bootstrap/form/button.html
+++ b/Packages/ohif-core/client/components/bootstrap/form/button.html
@@ -2,7 +2,7 @@
     {{#baseComponent (extend this
         base='baseButton'
         class=(concat 'btn ' this.class)
-        mixins=(concat 'formItem ' this.mixins)
+        mixins=(concat 'button ' this.mixins)
     )}}
         {{>UI.contentBlock}}
     {{/baseComponent}}
diff --git a/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.html b/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.html
index 9a6cbf490..060102702 100644
--- a/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.html
+++ b/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.html
@@ -1,51 +1,52 @@
 <template name="cineDialog">
-    {{#form id='cineDialog' class='noselect' schema=instance.schema}}
+    {{#form id='cineDialog' class='noselect' schema=instance.schema api=instance.api}}
+        {{>inputHidden key='intervalId'}}
         <h5>CINE Controls</h5>
         <div class="cine-navigation">
             <div class="btn-group">
-                {{#button id='cineDisplaySetPrevious' title='Previous display set'}}
+                {{#button action='displaySetPrevious' title='Previous display set'}}
                     <i class="fa fa-toggle-up"></i>
                 {{/button}}
-                {{#button id='cineDisplaySetNext' title='Next display set'}}
+                {{#button action='displaySetNext' title='Next display set'}}
                     <i class="fa fa-toggle-down"></i>
                 {{/button}}
             </div>
         </div>
         <div class="cine-controls">
             <div class="btn-group">
-                {{#button id='cineFirstButton' title='Skip to first image'}}
+                {{#button action='cineFirst' title='Skip to first image'}}
                     <i class="fa fa-fast-backward"></i>
                 {{/button}}
-                {{#button id='cineBackButton' title='Previous image'}}
+                {{#button action='cinePrevious' title='Previous image'}}
                     <i class="fa fa-step-backward"></i>
                 {{/button}}
-                {{#button id='cineSlowPlaybackButton' title='Slow playback'}}
+                {{#button action='cineSlowDown' title='Slow playback'}}
                     <i class="fa fa-backward"></i>
                 {{/button}}
-                {{#button id='cinePlayButton' title='Play / Stop' class=(valueIf isPlaying 'active' '')}}
+                {{#button action='cineToggle' title='Play / Stop' class=(valueIf isPlaying 'active' '')}}
                     {{#if isPlaying}}
                         <i class="fa fa-fw fa-stop"></i>
                     {{else}}
                         <i class="fa fa-fw fa-play"></i>
                     {{/if}}
                 {{/button}}
-                {{#button id='cineFastForwardButton' title='Increase playback speed'}}
+                {{#button action='cineSpeedUp' title='Increase playback speed'}}
                     <i class="fa fa-forward"></i>
                 {{/button}}
-                {{#button id='cineNextButton' title='Next image'}}
+                {{#button action='cineNext' title='Next image'}}
                     <i class="fa fa-step-forward"></i>
                 {{/button}}
-                {{#button id='cineLastButton' title='Skip to last image'}}
+                {{#button action='cineLast' title='Skip to last image'}}
                     <i class="fa fa-fast-forward"></i>
                 {{/button}}
             </div>
         </div>
         <div class="cine-options">
+            {{>inputCheckbox key='loop' labelClass='pull-right m-a-0'}}
             <div class="fps-section">
-                {{#inputRange id='cineSlider' key='speed' class='p-a-0' labelClass='form-group m-a-0' labelAsDiv=true}}
+                {{#inputRange key='framesPerSecond' class='p-a-0' labelClass='form-group m-a-0' labelAsDiv=true}}
                     {{#section 'labelAfterText'}}:
                         <span id="fps">{{framerate}}</span>
-                        {{>inputCheckbox id='cineLoopCheckbox' key='loop' labelClass='pull-right m-a-0'}}
                     {{/section}}
                 {{/inputRange}}
             </div>
diff --git a/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.js b/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.js
index 3e0dbed3c..748c26970 100644
--- a/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.js
+++ b/Packages/viewerbase/client/components/viewer/cineDialog/cineDialog.js
@@ -1,24 +1,35 @@
-import { OHIF } from 'meteor/ohif:core';
+import { Template } from 'meteor/templating';
 import { SimpleSchema } from 'meteor/aldeed:simple-schema';
+import { OHIF } from 'meteor/ohif:core';
+import { Session } from 'meteor/session';
+import { _ } from 'meteor/underscore';
+import { $ } from 'meteor/jquery';
 
 Template.cineDialog.onCreated(() => {
     const instance = Template.instance();
 
+    // Create the data schema for CINE controls
     instance.schema = new SimpleSchema({
+        intervalId: {
+            type: Number,
+            optional: true
+        },
         loop: {
             type: Boolean,
             label: 'Loop',
             defaultValue: true
         },
-        speed: {
+        framesPerSecond: {
             type: Number,
             label: 'Cine Speed',
             defaultValue: 24,
             min: 1,
-            max: 90
+            max: 90,
+            optional: true
         }
     });
 
+    // Update the current viewport frame rate
     instance.updateFramerate = rate => {
         OHIF.viewer.cine.framesPerSecond = rate;
 
@@ -33,66 +44,78 @@ Template.cineDialog.onCreated(() => {
             cornerstoneTools.playClip(element);
         }
 
-        Session.set('UpdateCine', Random.id());
+        Session.set('UpdateCINE', Random.id());
     };
+
+    // Define the actions API
+    instance.api = {
+        displaySetPrevious: () => OHIF.viewer.moveDisplaySets(false),
+        displaySetNext: () => OHIF.viewer.moveDisplaySets(true),
+        cineToggle: () => toggleCinePlay(),
+        cineFirst: () => switchToImageByIndex(0),
+        cineLast: () => switchToImageByIndex(-1),
+        cinePrevious: () => switchToImageRelative(-1),
+        cineNext: () => switchToImageRelative(1),
+        cineSlowDown: () => {
+            const newValue = OHIF.viewer.cine.framesPerSecond - 1;
+            if (newValue > 0) {
+                instance.updateFramerate(newValue);
+            }
+        },
+        cineSpeedUp: () => {
+            const newValue = OHIF.viewer.cine.framesPerSecond + 1;
+            if (newValue <= 90) {
+                instance.updateFramerate(newValue);
+            }
+        }
+    };
+
+    // Run this computation every time the active viewport is changed
+    instance.autorun(() => {
+        Session.get('activeViewport');
+
+        Tracker.afterFlush(() => {
+            // Get the active viewportElement
+            const element = getActiveViewportElement();
+
+            // Get the cornerstone playClip tool data
+            const toolData = cornerstoneTools.getToolState(element, 'playClip').data[0];
+
+            // Get the cine object
+            const cine = OHIF.viewer.cine;
+
+            // replace the cine values with the tool data
+            _.extend(cine, toolData);
+
+            // Set the defaults
+            cine.framesPerSecond = cine.framesPerSecond || 24;
+            cine.loop = _.isUndefined(cine.loop) ? true : cine.loop;
+
+            // Set the updated data on the form inputs
+            instance.$('form:first').data('component').value(cine);
+
+            // Update the session to refresh the framerate text
+            Session.set('UpdateCINE', Random.id());
+        });
+    });
 });
 
 Template.cineDialog.onRendered(() => {
+    const instance = Template.instance();
+
     // Make the CINE dialog bounded and draggable
-    Template.instance().$('#cineDialog').bounded().draggable();
+    instance.$('#cineDialog').bounded().draggable();
 });
 
 Template.cineDialog.events({
-    'click #cineDisplaySetPrevious'(event, instance) {
-        OHIF.viewer.moveDisplaySets(false);
-    },
-
-    'click #cineDisplaySetNext'(event, instance) {
-        OHIF.viewer.moveDisplaySets(true);
-    },
-
-    'click #cineFirstButton'(event, instance) {
-        switchToImageByIndex(0);
-    },
-
-    'click #cineBackButton'(event, instance) {
-        switchToImageRelative(-1);
-    },
-
-    'click #cineSlowPlaybackButton'(event, instance) {
-        const newValue = OHIF.viewer.cine.framesPerSecond - 1;
-        if (newValue > 0) {
-            instance.updateFramerate(newValue);
-        }
-    },
-
-    'click #cinePlayButton'(event, instance) {
-        toggleCinePlay();
-    },
-
-    'click #cineNextButton'(event, instance) {
-        switchToImageRelative(1);
-    },
-
-    'click #cineFastForwardButton'(event, instance) {
-        const newValue = OHIF.viewer.cine.framesPerSecond + 1;
-        if (newValue <= 90) {
-            instance.updateFramerate(newValue);
-        }
-    },
-
-    'click #cineLastButton'(event, instance) {
-        switchToImageByIndex(-1);
-    },
-
-    'change #cineLoopCheckbox'(event, instance) {
+    'change [data-key=loop] input'(event, instance) {
         const element = getActiveViewportElement();
         const playClipToolData = cornerstoneTools.getToolState(element, 'playClip');
         playClipToolData.data[0].loop = $(event.currentTarget).is(':checked');
         OHIF.viewer.cine.loop = playClipToolData.data[0].loop;
     },
 
-    'input #cineSlider'(event, instance) {
+    'input [data-key=framesPerSecond] input'(event, instance) {
         // Update the FPS text onscreen
         const rate = parseFloat($(event.currentTarget).val());
         instance.updateFramerate(rate);
@@ -109,7 +132,7 @@ Template.cineDialog.helpers({
     },
 
     framerate() {
-        Session.get('UpdateCine');
+        Session.get('UpdateCINE');
         return OHIF.viewer.cine.framesPerSecond.toFixed(1);
     }
 });