1 files changed, 0 insertions, 116 deletions
diff --git a/examples/go-dashboard/src/github.com/mum4k/termdash/container/focus.go b/examples/go-dashboard/src/github.com/mum4k/termdash/container/focus.go
deleted file mode 100644
index 4320eea73..000000000
--- a/examples/go-dashboard/src/github.com/mum4k/termdash/container/focus.go
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright 2018 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package container
-
-// focus.go contains code that tracks the focused container.
-
-import (
-	"image"
-
-	"github.com/mum4k/termdash/mouse"
-	"github.com/mum4k/termdash/private/button"
-	"github.com/mum4k/termdash/terminal/terminalapi"
-)
-
-// pointCont finds the top-most (on the screen) container whose area contains
-// the given point. Returns nil if none of the containers in the tree contain
-// this point.
-func pointCont(c *Container, p image.Point) *Container {
-	var (
-		errStr string
-		cont   *Container
-	)
-	postOrder(rootCont(c), &errStr, visitFunc(func(c *Container) error {
-		if p.In(c.area) && cont == nil {
-			cont = c
-		}
-		return nil
-	}))
-	return cont
-}
-
-// focusTracker tracks the active (focused) container.
-// This is not thread-safe, the implementation assumes that the owner of
-// focusTracker performs locking.
-type focusTracker struct {
-	// container is the currently focused container.
-	container *Container
-
-	// candidate is the container that might become focused next. I.e. we got
-	// a mouse click and now waiting for a release or a timeout.
-	candidate *Container
-
-	// buttonFSM is a state machine tracking mouse clicks in containers and
-	// moving focus from one container to the next.
-	buttonFSM *button.FSM
-}
-
-// newFocusTracker returns a new focus tracker with focus set at the provided
-// container.
-func newFocusTracker(c *Container) *focusTracker {
-	return &focusTracker{
-		container: c,
-		// Mouse FSM tracking clicks inside the entire area for the root
-		// container.
-		buttonFSM: button.NewFSM(mouse.ButtonLeft, c.area),
-	}
-}
-
-// isActive determines if the provided container is the currently active container.
-func (ft *focusTracker) isActive(c *Container) bool {
-	return ft.container == c
-}
-
-// setActive sets the currently active container to the one provided.
-func (ft *focusTracker) setActive(c *Container) {
-	ft.container = c
-}
-
-// mouse identifies mouse events that change the focused container and track
-// the focused container in the tree.
-// The argument c is the container onto which the mouse event landed.
-func (ft *focusTracker) mouse(target *Container, m *terminalapi.Mouse) {
-	clicked, bs := ft.buttonFSM.Event(m)
-	switch {
-	case bs == button.Down:
-		ft.candidate = target
-	case bs == button.Up && clicked:
-		if target == ft.candidate {
-			ft.container = target
-		}
-	}
-}
-
-// updateArea updates the area that the focus tracker considers active for
-// mouse clicks.
-func (ft *focusTracker) updateArea(ar image.Rectangle) {
-	ft.buttonFSM.UpdateArea(ar)
-}
-
-// reachableFrom asserts whether the currently focused container is reachable
-// from the provided node in the tree.
-func (ft *focusTracker) reachableFrom(node *Container) bool {
-	var (
-		errStr    string
-		reachable bool
-	)
-	preOrder(node, &errStr, visitFunc(func(c *Container) error {
-		if c == ft.container {
-			reachable = true
-		}
-		return nil
-	}))
-	return reachable
-}