Merge pull request #447 from yurenchen000/feat-ctrl-z

Feat: add ctrl-z support

4 files changed, 40 insertions, 11 deletions

diff --git a/go.mod b/go.mod
index 14c1fe5..22ae94d 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.13
 
 require (
 	github.com/Microsoft/go-winio v0.4.14 // indirect
-	github.com/awesome-gocui/gocui v0.6.0
+	github.com/awesome-gocui/gocui v1.1.0
 	github.com/awesome-gocui/keybinding v1.0.1-0.20190805183143-864552bd36b7
 	github.com/cespare/xxhash v1.1.0
 	github.com/docker/cli v0.0.0-20190906153656-016a3232168d
diff --git a/go.sum b/go.sum
index a7352ce..e274e23 100644
--- a/go.sum
+++ b/go.sum
@@ -11,11 +11,10 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/awesome-gocui/gocui v0.5.0/go.mod h1:1QikxFaPhe2frKeKvEwZEIGia3haiOxOUXKinrv17mA=
-github.com/awesome-gocui/gocui v0.6.0 h1:hhDJiQC12tEsJNJ+iZBBVaSSLFYo9llFuYpQlL5JZVI=
-github.com/awesome-gocui/gocui v0.6.0/go.mod h1:1QikxFaPhe2frKeKvEwZEIGia3haiOxOUXKinrv17mA=
+github.com/awesome-gocui/gocui v1.1.0 h1:db2j7yFEoHZjpQFeE2xqiatS8bm1lO3THeLwE6MzOII=
+github.com/awesome-gocui/gocui v1.1.0/go.mod h1:M2BXkrp7PR97CKnPRT7Rk0+rtswChPtksw/vRAESGpg=
 github.com/awesome-gocui/keybinding v1.0.1-0.20190805183143-864552bd36b7 h1:DDdWoFOtXWySkgCiGGn80TM/E2FS2T1qJBJJxup9+Vo=
 github.com/awesome-gocui/keybinding v1.0.1-0.20190805183143-864552bd36b7/go.mod h1:z0TyCwIhaT97yU+becTse8Dqh2CvYT0FLw0R0uTk0ag=
-github.com/awesome-gocui/termbox-go v0.0.0-20190427202837-c0aef3d18bcc h1:wGNpKcHU8Aadr9yOzsT3GEsFLS7HQu8HxQIomnekqf0=
 github.com/awesome-gocui/termbox-go v0.0.0-20190427202837-c0aef3d18bcc/go.mod h1:tOy3o5Nf1bA17mnK4W41gD7PS3u4Cv0P0pqFcoWMy8s=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@@ -52,8 +51,11 @@ github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
+github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
+github.com/gdamore/tcell/v2 v2.4.0 h1:W6dxJEmaxYvhICFoTY3WrLLEXsQ11SaFnKGVEXW57KM=
+github.com/gdamore/tcell/v2 v2.4.0/go.mod h1:cTTuF84Dlj/RqmaCIV5p4w8uG1zWdk0SF6oBpwHp4fU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
@@ -98,6 +100,8 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/logrusorgru/aurora v0.0.0-20190803045625-94edacc10f9b h1:PMbSa9CgaiQR9NLlUTwKi+7aeLl3GG5JX5ERJxfQ3IE=
 github.com/logrusorgru/aurora v0.0.0-20190803045625-94edacc10f9b/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
+github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
+github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/lunixbochs/vtclean v1.0.0 h1:xu2sLAri4lGiovBDQKxl5mrXyESr3gUr5m5SM5+LVb8=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
@@ -108,8 +112,9 @@ github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVc
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.9 h1:d5US/mDsogSGW37IV293h//ZFaeajb69h+EHFsv2xGg=
 github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
-github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
+github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
@@ -145,6 +150,8 @@ github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y8
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
+github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
@@ -252,10 +259,12 @@ golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
 golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
+golang.org/x/term v0.9.0 h1:GRRCnKYhdQrD8kfRAdQ6Zcw1P0OcELxGLKJvtjVMZ28=
 golang.org/x/term v0.9.0/go.mod h1:M6DEAAIenWoTxdKrOltXcmDY3rSplQUkrvaDU5FcQyo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
diff --git a/runtime/ui/app.go b/runtime/ui/app.go
index 249a3aa..faf908f 100644
--- a/runtime/ui/app.go
+++ b/runtime/ui/app.go
@@ -2,6 +2,7 @@ package ui
 
 import (
 	"sync"
+	"syscall"
 
 	"github.com/wagoodman/dive/dive/image"
 	"github.com/wagoodman/dive/runtime/ui/key"
@@ -135,6 +136,15 @@ func (a *app) quit() error {
 	return gocui.ErrQuit
 }
 
+// handle ctrl+z
+func handle_ctrl_z(g *gocui.Gui, v *gocui.View) error {
+	gocui.Suspend()
+	if err := syscall.Kill(syscall.Getpid(), syscall.SIGSTOP); err != nil {
+		return err
+	}
+	return gocui.Resume()
+}
+
 // Run is the UI entrypoint.
 func Run(imageName string, analysis *image.AnalysisResult, treeStack filetree.Comparer) error {
 	var err error
@@ -150,6 +160,11 @@ func Run(imageName string, analysis *image.AnalysisResult, treeStack filetree.Co
 		return err
 	}
 
+	key, mod := gocui.MustParse("Ctrl+Z")
+	if err := g.SetKeybinding("", key, mod, handle_ctrl_z); err != nil {
+		return err
+	}
+
 	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
 		logrus.Error("main loop error: ", err)
 		return err
diff --git a/runtime/ui/view/layer.go b/runtime/ui/view/layer.go
index d6616d1..caa3d7b 100644
--- a/runtime/ui/view/layer.go
+++ b/runtime/ui/view/layer.go
@@ -2,6 +2,7 @@ package view
 
 import (
 	"fmt"
+
 	"github.com/awesome-gocui/gocui"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/viper"
@@ -167,7 +168,8 @@ func (v *Layer) PageDown() error {
 	}
 
 	if step > 0 {
-		err := CursorStep(v.gui, v.body, step)
+		// err := CursorStep(v.gui, v.body, step)
+		err := error(nil)
 		if err == nil {
 			return v.SetCursor(v.vm.LayerIndex + step)
 		}
@@ -185,7 +187,8 @@ func (v *Layer) PageUp() error {
 	}
 
 	if step > 0 {
-		err := CursorStep(v.gui, v.body, -step)
+		// err := CursorStep(v.gui, v.body, -step)
+		err := error(nil)
 		if err == nil {
 			return v.SetCursor(v.vm.LayerIndex - step)
 		}
@@ -195,8 +198,9 @@ func (v *Layer) PageUp() error {
 
 // CursorDown moves the cursor down in the layer pane (selecting a higher layer).
 func (v *Layer) CursorDown() error {
-	if v.vm.LayerIndex < len(v.vm.Layers) {
-		err := CursorDown(v.gui, v.body)
+	if v.vm.LayerIndex < len(v.vm.Layers)-1 {
+		// err := CursorDown(v.gui, v.body)
+		err := error(nil)
 		if err == nil {
 			return v.SetCursor(v.vm.LayerIndex + 1)
 		}
@@ -207,7 +211,8 @@ func (v *Layer) CursorDown() error {
 // CursorUp moves the cursor up in the layer pane (selecting a lower layer).
 func (v *Layer) CursorUp() error {
 	if v.vm.LayerIndex > 0 {
-		err := CursorUp(v.gui, v.body)
+		// err := CursorUp(v.gui, v.body)
+		err := error(nil)
 		if err == nil {
 			return v.SetCursor(v.vm.LayerIndex - 1)
 		}