přidání uložení změn do fs, oprava vypisování dir tree

js/controller.js

@@ -10,6 +10,8 @@ class Controller {
     var settingsBtn = document.getElementsByClassName("settingsBtn")[0];
     var settingsClose = document.getElementsByClassName("close");
     var settingsSubmit = document.getElementById("settingsSubmit");
+    var textArea = document.getElementsByTagName("textarea")[0];
+    var saveBtn = document.getElementById("saveBtn");
 
     cloneBtn.addEventListener("click", this.cloneRep.bind(this));
     purgeBtn.addEventListener("click", this.wipeFS.bind(this));
@@ -18,6 +20,17 @@ class Controller {
       settingsClose[i].addEventListener("click", view.closeSettings.bind(this));
     }
     settingsSubmit.addEventListener("click", this.saveSettings.bind(this));
+    textArea.addEventListener("keyup", this.saveButton.bind(this));
+    saveBtn.addEventListener("click", this.saveFile.bind(this));
+  }
+
+  saveButton() {
+    var textArea = document.getElementsByTagName("textarea")[0];
+    if (textArea.value != this.openedFileValue) {
+      this.view.showSaveButton(true);
+    } else {
+      this.view.showSaveButton(false);
+    }
   }
 
   wipeFS() {
@@ -27,14 +40,13 @@ class Controller {
   }
 
   cloneRep(repurl) {
-    var that = this;
     var loading = document.getElementsByClassName("loading")[0];
     loading.style.display = "grid";
     this.model.cloneRep().then(
       function (value) {
         loading.style.removeProperty("display");
-        that.redrawDirTree(that.view);
-      },
+        this.redrawDirTree(this.view);
+      }.bind(this),
       function (error) {}
     );
   }
@@ -63,11 +75,20 @@ class Controller {
   }
 
   loadFile(file) {
+    this.openedFile = file;
     this.model.readFile(file).then(
       function (value) {
+        this.openedFileValue = value;
         this.view.openFile(value);
       }.bind(this),
       function (error) {}
     );
   }
+
+  saveFile() {
+    var textArea = document.getElementsByTagName("textarea")[0];
+    this.model.saveFile(this.openedFile, textArea.value)
+    this.openedFileValue = textArea.value;
+    this.saveButton()
+  }
 }