Reimplemented `delete` command as more of a `reset` command

Pressing `d` in normal mode causes the current embedded terminal to be destroyed and the containing terminal item to be reset into its initial state.
This allows for much more flexible usage of _MetaTerm_.

To prevent unnecessary terminal item instantiations the `onExecuted` signal was extended to provide a `index` argument containing the sender terminal's index.

3 files changed, 26 insertions, 13 deletions

diff --git a/qml/StateHandler.qml b/qml/StateHandler.qml
index aacb0fa..53ca3af 100644
--- a/qml/StateHandler.qml
+++ b/qml/StateHandler.qml
@@ -24,7 +24,7 @@ Item {
 			PropertyChanges { target: prevTerminalAction;     enabled: true  }
 			PropertyChanges { target: lastTerminalAction;     enabled: true  }
 			PropertyChanges { target: firstTerminalAction;    enabled: true  }
-			PropertyChanges { target: deleteTerminalAction;   enabled: true  }
+			PropertyChanges { target: resetTerminalAction;    enabled: true  }
 		},
 		State {
 			name: "INSERT"
@@ -37,7 +37,7 @@ Item {
 			PropertyChanges { target: prevTerminalAction;     enabled: false }
 			PropertyChanges { target: lastTerminalAction;     enabled: false }
 			PropertyChanges { target: firstTerminalAction;    enabled: false }
-			PropertyChanges { target: deleteTerminalAction;   enabled: false }
+			PropertyChanges { target: resetTerminalAction;    enabled: false }
 		}
 	]
 
@@ -99,8 +99,8 @@ Item {
 	}
 
 	Action {
-		id: deleteTerminalAction
+		id: resetTerminalAction
 		shortcut: "d"
-		onTriggered: terminalList.deleteCurrent()
+		onTriggered: terminalList.getCurrent().reset()
 	}
 }
diff --git a/qml/TerminalItem.qml b/qml/TerminalItem.qml
index 0650b1e..26793da 100644
--- a/qml/TerminalItem.qml
+++ b/qml/TerminalItem.qml
@@ -8,7 +8,7 @@ Item {
 	property int              index    : 0
 	property EmbeddedTerminal terminal : null
 
-	signal executed
+	signal executed (int index)
 
 	anchors {
 		left:  parent.left
@@ -63,6 +63,19 @@ Item {
 		}
 	}
 
+	function reset() {
+		if ( terminal !== null ) {
+			terminal.destroy();
+
+			terminal         = null;
+			command.readOnly = false;
+			command.focus    = true;
+
+			unfocus();
+			select();
+		}
+	}
+
 	FocusScope {
 		id: scope
 
@@ -146,7 +159,7 @@ Item {
 							focus    = false;
 
 							elementList.createTerminal(text);
-							item.executed();
+							item.executed(item.index);
 							highlighter.deselect();
 						}
 					}
diff --git a/qml/main.qml b/qml/main.qml
index f9e7162..836f97c 100644
--- a/qml/main.qml
+++ b/qml/main.qml
@@ -38,6 +38,12 @@ ApplicationWindow {
 
 			onHeightChanged: scrollTo(activeItem)
 
+			function onItemExecuted(index) {
+				if ( index === (children.length - 1) ) {
+					createItem();
+				}
+			}
+
 			function createItem() {
 				var terminalItem = Qt.createComponent("qrc:/TerminalItem.qml");
 				var instantiateTerminal = function() {
@@ -45,7 +51,7 @@ ApplicationWindow {
 						"index": itemIndex,
 						"width": terminalListFlickable.width
 					});
-					instance.onExecuted.connect(createItem);
+					instance.onExecuted.connect(onItemExecuted);
 
 					++itemIndex;
 				}
@@ -110,12 +116,6 @@ ApplicationWindow {
 			function getCurrent() {
 				return children[activeItem];
 			}
-
-			function deleteCurrent() {
-				if ( children[activeItem].terminal != null ) {
-					children[activeItem].destroy();
-				}
-			}
         }
 	}