WTF-1031 WIP

Signed-off-by: Chris Cummer <chriscummer@me.com>

app/app_manager.go

@@ -0,0 +1,57 @@
+package app
+
+import "errors"
+
+// WtfAppManager handles the instances of WtfApp, ensuring that they're displayed as requested
+type WtfAppManager struct {
+	WtfApps []*WtfApp
+
+	selected int
+}
+
+// NewAppManager creates and returns an instance of AppManager
+func NewAppManager() WtfAppManager {
+	appMan := WtfAppManager{
+		selected: 0,
+	}
+
+	return appMan
+}
+
+// AddApp adds a WtfApp to the collection of apps that the AppManager manages.
+// This app is then available for display onscreen.
+func (appMan *WtfAppManager) AddApp(wtfApp *WtfApp) error {
+	appMan.WtfApps = append(appMan.WtfApps, wtfApp)
+	return nil
+}
+
+// Current returns the currently-displaying instance of WtfApp
+func (appMan *WtfAppManager) Current() (*WtfApp, error) {
+	if appMan.selected < 0 || appMan.selected > (len(appMan.WtfApps)-1) {
+		return nil, errors.New("invalid app index selected")
+	}
+
+	return appMan.WtfApps[appMan.selected], nil
+}
+
+// Next cycles the WtfApps forward by one, making the next one in the list
+// the current one. If there are none after the current one, it wraps around.
+func (appMan *WtfAppManager) Next() (*WtfApp, error) {
+	appMan.selected++
+	if appMan.selected >= len(appMan.WtfApps) {
+		appMan.selected = 0
+	}
+
+	return appMan.Current()
+}
+
+// Prev cycles the WtfApps backwards by one, making the previous one in the
+// list the current one. If there are none before the current one, it wraps around.
+func (appMan *WtfAppManager) Prev() (*WtfApp, error) {
+	appMan.selected--
+	if appMan.selected < 0 {
+		appMan.selected = len(appMan.WtfApps) - 1
+	}
+
+	return appMan.Current()
+}

app/wtf_app.go

@@ -51,12 +51,11 @@ func NewWtfApp(tviewApp *tview.Application, config *config.Config, configFilePat
 	wtfApp.widgets = MakeWidgets(wtfApp.TViewApp, wtfApp.pages, wtfApp.config)
 	wtfApp.display = NewDisplay(wtfApp.widgets, wtfApp.config)
 	wtfApp.focusTracker = NewFocusTracker(wtfApp.TViewApp, wtfApp.widgets, wtfApp.config)
+	wtfApp.validator = NewModuleValidator()
 
 	githubAPIKey := readGitHubAPIKey(wtfApp.config)
 	wtfApp.ghUser = support.NewGitHubUser(githubAPIKey)
 
-	wtfApp.validator = NewModuleValidator()
-
 	wtfApp.pages.AddPage("grid", wtfApp.display.Grid, true, true)
 
 	wtfApp.validator.Validate(wtfApp.widgets)
@@ -116,6 +115,11 @@ func (wtfApp *WtfApp) keyboardIntercept(event *tcell.EventKey) *tcell.EventKey {
 	case tcell.KeyCtrlR:
 		wtfApp.refreshAllWidgets()
 		return nil
+	case tcell.KeyCtrlSpace:
+		// FIXME: This can't reside in the app, the app doesn't know about
+		// the AppManager. The AppManager needs to catch this one
+		fmt.Println("Next app")
+		return nil
 	case tcell.KeyTab:
 		wtfApp.focusTracker.Next()
 	case tcell.KeyBacktab: