Moved UI mode implementation into separate `StateHandler`

`ApplicationWindow` doesn't offer QML State support but as this functionality lends itself quite well to the _Vim like_ UI mode paradigm it was moved into a `Item` based component.

3 files changed, 103 insertions, 77 deletions

diff --git a/qml/StateHandler.qml b/qml/StateHandler.qml
new file mode 100644
index 0000000..4334a6b
--- /dev/null
+++ b/qml/StateHandler.qml
@@ -0,0 +1,98 @@
+import QtQuick 2.0
+import QtQuick.Controls 1.2
+
+Item {
+	id: item
+
+	property Item terminalList : null
+
+	state: "INSERT"
+
+	function enterInsertMode() {
+		insertTerminalAction.trigger();
+	}
+
+	states: [
+		State {
+			name: "NORMAL"
+
+			PropertyChanges { target: escapeTerminalAction;   enabled: false }
+			PropertyChanges { target: insertTerminalAction;   enabled: true  }
+			PropertyChanges { target: nextTerminalAction;     enabled: true  }
+			PropertyChanges { target: heightenTerminalAction; enabled: true  }
+			PropertyChanges { target: shortenTerminalAction;  enabled: true  }
+			PropertyChanges { target: prevTerminalAction;     enabled: true  }
+			PropertyChanges { target: lastTerminalAction;     enabled: true  }
+			PropertyChanges { target: firstTerminalAction;    enabled: true  }
+		},
+		State {
+			name: "INSERT"
+
+			PropertyChanges { target: escapeTerminalAction;   enabled: true  }
+			PropertyChanges { target: insertTerminalAction;   enabled: false }
+			PropertyChanges { target: nextTerminalAction;     enabled: false }
+			PropertyChanges { target: heightenTerminalAction; enabled: false }
+			PropertyChanges { target: shortenTerminalAction;  enabled: false }
+			PropertyChanges { target: prevTerminalAction;     enabled: false }
+			PropertyChanges { target: lastTerminalAction;     enabled: false }
+			PropertyChanges { target: firstTerminalAction;    enabled: false }
+		}
+	]
+
+	Action {
+		id: insertTerminalAction
+		shortcut: "i"
+		onTriggered: {
+			item.state = "INSERT";
+
+			terminalList.focusCurrent();
+		}
+	}
+
+	Action {
+		id: escapeTerminalAction
+		shortcut: "Shift+ESC"
+		onTriggered: {
+			item.state = "NORMAL";
+
+            terminalList.forceActiveFocus();
+			terminalList.unfocusCurrent();
+		}
+	}
+
+	Action {
+		id: nextTerminalAction
+		shortcut: "j"
+		onTriggered: terminalList.selectNext()
+	}
+
+	Action {
+		id: heightenTerminalAction
+		shortcut: "Shift+J"
+		onTriggered: terminalList.getCurrent().heighten()
+	}
+
+	Action {
+		id: shortenTerminalAction
+		shortcut: "Shift+K"
+		onTriggered: terminalList.getCurrent().shorten()
+	}
+
+	Action {
+		id: prevTerminalAction
+		shortcut: "k"
+		onTriggered: terminalList.selectPrev()
+	}
+
+	Action {
+		id: lastTerminalAction
+		shortcut: "Shift+G"
+		onTriggered: terminalList.selectItem(terminalList.children.length - 1)
+	}
+
+	Action {
+		id: firstTerminalAction
+		shortcut: "g"
+		onTriggered: terminalList.selectItem(0)
+	}
+}
diff --git a/qml/main.qml b/qml/main.qml
index ef17a99..11337f3 100644
--- a/qml/main.qml
+++ b/qml/main.qml
@@ -6,7 +6,6 @@ ApplicationWindow {
 	id: root
 
 	visible: true
-
 	color: "#161616"
 
 	Component.onCompleted: terminalList.focusCurrent()
@@ -84,7 +83,7 @@ ApplicationWindow {
 				if ( activeItem < (children.length - 1) ) {
 					selectItem(activeItem + 1);
 				} else {
-					insertTerminalAction.trigger();
+					state.enterInsertMode();
 				}
 			}
 
@@ -113,81 +112,9 @@ ApplicationWindow {
         }
 	}
 
-	Action {
-		id: insertTerminalAction
-		shortcut: "i"
-		enabled: false
-		onTriggered: {
-			escapeTerminalAction.enabled   = true;
-			insertTerminalAction.enabled   = false;
-			nextTerminalAction.enabled     = false;
-			heightenTerminalAction.enabled = false;
-			shortenTerminalAction.enabled  = false;
-			prevTerminalAction.enabled     = false;
-			lastTerminalAction.enabled     = false;
-			firstTerminalAction.enabled    = false;
-
-			terminalList.focusCurrent();
-		}
-	}
-
-	Action {
-		id: escapeTerminalAction
-		shortcut: "Shift+ESC"
-		onTriggered: {
-			escapeTerminalAction.enabled   = false;
-			insertTerminalAction.enabled   = true;
-			nextTerminalAction.enabled     = true;
-			heightenTerminalAction.enabled = true;
-			shortenTerminalAction.enabled  = true;
-			prevTerminalAction.enabled     = true;
-			lastTerminalAction.enabled     = true;
-			firstTerminalAction.enabled    = true;
-
-            terminalList.forceActiveFocus();
-			terminalList.unfocusCurrent();
-		}
-	}
-
-	Action {
-		id: nextTerminalAction
-		shortcut: "j"
-		enabled: false
-		onTriggered: terminalList.selectNext()
-	}
-
-	Action {
-		id: heightenTerminalAction
-		shortcut: "Shift+J"
-		enabled: false
-		onTriggered: terminalList.getCurrent().heighten()
-	}
-
-	Action {
-		id: shortenTerminalAction
-		shortcut: "Shift+K"
-		enabled: false
-		onTriggered: terminalList.getCurrent().shorten()
-	}
-
-	Action {
-		id: prevTerminalAction
-		shortcut: "k"
-		enabled: false
-		onTriggered: terminalList.selectPrev()
-	}
-
-	Action {
-		id: lastTerminalAction
-		shortcut: "Shift+G"
-		enabled: false
-		onTriggered: terminalList.selectItem(terminalList.children.length - 1)
-	}
+	StateHandler {
+		id: state
 
-	Action {
-		id: firstTerminalAction
-		shortcut: "g"
-		enabled: false
-		onTriggered: terminalList.selectItem(0)
+		terminalList: terminalList
 	}
 }
diff --git a/qml/ui.qrc b/qml/ui.qrc
index add7048..2705e7e 100644
--- a/qml/ui.qrc
+++ b/qml/ui.qrc
@@ -1,6 +1,7 @@
 <RCC>
 	<qresource prefix="/">
 		<file>main.qml</file>
+		<file>StateHandler.qml</file>
 		<file>TerminalItem.qml</file>
 		<file>EmbeddedTerminal.qml</file>
 	</qresource>