web: start gui

1 files changed, 101 insertions, 0 deletions

diff --git a/web/src/js/datastructures.js b/web/src/js/datastructures.js
new file mode 100644
index 00000000..59f64e66
--- /dev/null
+++ b/web/src/js/datastructures.js
@@ -0,0 +1,101 @@
+class EventEmitter {
+    constructor(){
+        this._listeners = {};
+    }
+    emit(event){
+        if(!(event in this._listeners)){
+            return;
+        }
+        this._listeners[event].forEach(function (listener) {
+            listener(event, this);
+        }.bind(this));
+    }
+    addListener(event, f){
+        this._listeners[event] = this._listeners[event] || [];
+        this._listeners[event].push(f);
+    }
+    removeListener(event, f){
+        if(!(event in this._listeners)){
+            return false;
+        }
+        var index = this._listeners.indexOf(f);
+        if (index >= 0) {
+            this._listeners.splice(this._listeners.indexOf(f), 1);
+        }
+    }
+}
+
+var FLOW_CHANGED = "flow.changed";
+
+class FlowStore extends EventEmitter{
+    constructor() {
+        super();
+        this.flows = [];
+        this._listeners = [];
+    }
+
+    getAll() {
+        return this.flows;
+    }
+
+    emitChange() {
+        return this.emit(FLOW_CHANGED);
+    }
+
+    addChangeListener(f) {
+        this.addListener(FLOW_CHANGED, f);
+    }
+
+    removeChangeListener(f) {
+        this.removeListener(FLOW_CHANGED, f);
+    }
+}
+
+class DummyFlowStore extends FlowStore {
+    constructor(flows) {
+        super();
+        this.flows = flows;
+    }
+
+    addFlow(f) {
+        this.flows.push(f);
+        this.emitChange();
+    }
+}
+
+
+SETTINGS_CHANGED = "settings.change";
+
+class Settings extends EventEmitter {
+    constructor(){
+        super();
+        this.settings = false;
+    }
+
+    getAll(){
+        return this.settings;
+    }
+
+    emitChange() {
+        return this.emit(SETTINGS_CHANGED);
+    }
+
+    addChangeListener(f) {
+        this.addListener(SETTINGS_CHANGED, f);
+    }
+
+    removeChangeListener(f) {
+        this.removeListener(SETTINGS_CHANGED, f);
+    }
+}
+
+class DummySettings extends Settings {
+    constructor(settings){
+        super();
+        this.settings = settings;
+    }
+    update(obj){
+        _.merge(this.settings, obj);
+        this.emitChange();
+    }
+}
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