Creating ohif:hotkeys package

OHIFViewer/.meteor/packages

@@ -8,6 +8,7 @@
 ohif:polyfill
 ohif:design
 ohif:core
+ohif:hotkeys
 ohif:header
 ohif:cornerstone
 ohif:viewerbase

OHIFViewer/.meteor/versions

@@ -72,15 +72,16 @@ mongo-id@1.0.6
 natestrauser:select2@4.0.3
 npm-mongo@2.2.11_2
 observe-sequence@1.0.14
-ohif:polyfill@0.0.1
 ohif:core@0.0.1
 ohif:cornerstone@0.0.1
 ohif:design@0.0.1
 ohif:dicom-services@0.0.1
 ohif:hanging-protocols@0.0.1
 ohif:header@0.0.1
+ohif:hotkeys@0.0.1
 ohif:log@0.0.1
 ohif:metadata@0.0.1
+ohif:polyfill@0.0.1
 ohif:study-list@0.0.1
 ohif:themes@0.0.1
 ohif:themes-common@0.0.1

Packages/ohif-hotkeys/client/HotkeysContext.js

@@ -0,0 +1,45 @@
+import { OHIF } from 'meteor/ohif:core';
+
+export class HotkeysContext {
+    constructor(name, definitions, enabled) {
+        this.name = name;
+        this.definitions = definitions;
+        this.enabled = enabled;
+    }
+
+    extend(definitions={}) {
+        if (typeof definitions !== 'object') return;
+        this.destroy();
+        Object.assign(this.definitions, definitions);
+        this.initialize();
+    }
+
+    initialize() {
+        Object.keys(this.definitions).forEach(definitionKey => {
+            const { hotkey, action, disabled } = this.definitions[definitionKey];
+            let message;
+            if (!hotkey) {
+                message = `No hotkey was defined for "${definitionKey}"`;
+            } else if (!action) {
+                message = `No action was defined for "${definitionKey}" using "${hotkey}" hotkey`;
+            }
+
+            if (message) {
+                return OHIF.log.warn(message);
+            }
+
+            $(document).bind(`keydown.hotkey.${this.name}`, hotkey, event => {
+                if (!this.enabled.get()) return;
+                if (typeof disabled !== undefined) {
+                    if ((typeof disabled === 'function' && disabled()) || disabled) return;
+                }
+
+                action(event);
+            });
+        });
+    }
+
+    destroy() {
+        $(document).unbind(`keydown.hotkey.${this.name}`);
+    }
+}

Packages/ohif-hotkeys/client/HotkeysManager.js

@@ -0,0 +1,59 @@
+import { ReactiveVar } from 'meteor/reactive-var';
+import { HotkeysContext } from 'meteor/ohif:hotkeys/client/HotkeysContext';
+
+export class HotkeysManager {
+    constructor() {
+        this.contexts = {};
+        this.currentContextName = null;
+        this.enabled = new ReactiveVar(true);
+    }
+
+    disable() {
+        this.enabled.set(false);
+    }
+
+    enable() {
+        this.enabled.set(true);
+    }
+
+    getContext(contextName) {
+        return this.contexts[contextName];
+    }
+
+    getCurrentContext() {
+        return this.getContext(this.currentContextName);
+    }
+
+    setContext(contextName, contextDefinitions) {
+        const enabled = this.enabled;
+        const context = new HotkeysContext(contextName, contextDefinitions, enabled);
+        const currentContext = this.getCurrentContext();
+        if (currentContext && currentContext.name === contextName) {
+            currentContext.destroy();
+            context.initialize();
+        }
+
+        this.contexts[contextName] = context;
+    }
+
+    unsetContext(contextName) {
+        if (contextName === this.currentContextName) {
+            this.getCurrentContext().destroy();
+        }
+
+        delete this.contexts[contextName];
+    }
+
+    switchToContext(contextName) {
+        const currentContext = this.getCurrentContext();
+        if (currentContext) {
+            currentContext.destroy();
+        }
+
+        const newContext = this.contexts[contextName];
+        if (!newContext) return;
+
+        this.currentContextName = contextName;
+        newContext.initialize();
+    }
+}

Packages/ohif-hotkeys/main.js

@@ -0,0 +1,18 @@
+import { OHIF } from 'meteor/ohif:core';
+import { HotkeysManager } from 'meteor/ohif:hotkeys/client/HotkeysManager';
+
+/**
+ * Create hotkeys namespace using a HotkeysManager class instance
+ */
+const hotkeys = new HotkeysManager();
+
+/**
+ * Append hotkeys namespace to OHIF namespace
+ */
+
+OHIF.hotkeys = hotkeys;
+
+/**
+ * Export relevant objects
+ */
+export { hotkeys };

Packages/ohif-hotkeys/package.js

@@ -0,0 +1,16 @@
+Package.describe({
+    name: 'ohif:hotkeys',
+    summary: 'OHIF hotkeys management',
+    version: '0.0.1'
+});
+
+Package.onUse(function(api) {
+    api.versionsFrom('1.4');
+
+    // Meteor packages
+    api.use('ecmascript');
+    api.use('reactive-dict');
+
+    // Main module definition
+    api.mainModule('main.js', 'client');
+});

Packages/ohif-viewerbase/package.js

@@ -7,19 +7,23 @@ Package.describe({
 Package.onUse(function(api) {
     api.versionsFrom('1.4');
 
-    api.use('ecmascript');
-    api.use('standard-app-packages');
-    api.use('http');
-    api.use('jquery');
-    api.use('stylus');
-    api.use('momentjs:moment');
-    api.use('validatejs');
-    api.use('u2622:persistent-session');
+    api.use(['ecmascript',
+        'standard-app-packages',
+        'http',
+        'jquery',
+        'stylus',
+        'momentjs:moment',
+        'validatejs',
+        'u2622:persistent-session'
+    ]);
 
-    // Our custom packages
-    api.use('ohif:design');
-    api.use('ohif:core');
-    api.use('ohif:log');
+    // OHIF dependencies
+    api.use([
+        'ohif:design',
+        'ohif:core',
+        'ohif:hotkeys',
+        'ohif:log'
+    ]);
 
     const assets = [
         'assets/icons.svg',