add: clipboard functionality in room view

CTRL+V now checks if the clipboard contains an image and pastes it into the room.

The library used for clipboard functionality requires an additional
dependency:

> Linux: require X11 dev package. For instance, install libx11-dev or xorg-dev or libX11-devel to access X window system.

config/keybindings.yaml

@@ -39,4 +39,5 @@ room:
   'Ctrl+n': scroll_down
   'PageUp': scroll_up
   'PageDown': scroll_down
+  'Ctrl+v': paste
   'Enter': send

go.mod

@@ -19,8 +19,8 @@ require (
 	go.mau.fi/cbind v0.0.0-20220415094356-e1d579b7925e
 	go.mau.fi/mauview v0.2.1
 	go.mau.fi/tcell v0.4.0
-	golang.org/x/image v0.1.0
+	golang.org/x/image v0.6.0
-	golang.org/x/net v0.2.0
+	golang.org/x/net v0.6.0
 	gopkg.in/toast.v1 v1.0.0-20180812000517-0a84660828b2
 	gopkg.in/vansante/go-ffprobe.v2 v2.1.1
 	gopkg.in/yaml.v3 v3.0.1
@@ -40,10 +40,13 @@ require (
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.0 // indirect
 	github.com/tidwall/sjson v1.2.4 // indirect
+	golang.design/x/clipboard v0.7.0 // indirect
 	golang.org/x/crypto v0.0.0-20220513210258-46612604a0f9 // indirect
-	golang.org/x/sys v0.2.0 // indirect
+	golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 // indirect
-	golang.org/x/term v0.2.0 // indirect
+	golang.org/x/mobile v0.0.0-20230301163155-e0f57694e12c // indirect
-	golang.org/x/text v0.4.0 // indirect
+	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/term v0.5.0 // indirect
+	golang.org/x/text v0.8.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	maunium.net/go/maulogger/v2 v2.3.2 // indirect
 )

go.sum

@@ -1,3 +1,4 @@
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/alecthomas/chroma v0.10.0 h1:7XDcGkCQopCNKjZHfYrNLraA+M7e0fMiJ/Mfikbfjek=
 github.com/alecthomas/chroma v0.10.0/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -68,24 +69,43 @@ go.mau.fi/mauview v0.2.1 h1:Sv+L3MQoo0VWuqgO/SIzhTzDcd7iqPGZgxH3au2kUGw=
 go.mau.fi/mauview v0.2.1/go.mod h1:aTb1VjsjFmZ5YsdMQTIHrma9Ki2O0WwkS2Er7bIgoUs=
 go.mau.fi/tcell v0.4.0 h1:IPFKhkzF3yZkcRYjzgYBWWiW0JWPTwEBoXlWTBT8o/4=
 go.mau.fi/tcell v0.4.0/go.mod h1:77zV/6KL4Zip1u9ndjswACmu/LWwZ/oe3BE188uWMrA=
+golang.design/x/clipboard v0.7.0 h1:4Je8M/ys9AJumVnl8m+rZnIvstSnYj1fvzqYrU3TXvo=
+golang.design/x/clipboard v0.7.0/go.mod h1:PQIvqYO9GP29yINEfsEn5zSQKAz3UgXmZKzDA6dnq2E=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20220513210258-46612604a0f9 h1:NUzdAbFtCJSXU20AOXgeqaUwg8Ypg4MPYmL+d+rsB5c=
 golang.org/x/crypto v0.0.0-20220513210258-46612604a0f9/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 h1:estk1glOnSVeJ9tdEZZc5mAMDZk5lNJNyJ6DvrBkTEU=
+golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56/go.mod h1:JhuoJpWY28nO4Vef9tZUw9qufEGTyX1+7lmHxV5q5G4=
+golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/image v0.1.0 h1:r8Oj8ZA2Xy12/b5KZYj3tuv7NG/fBz3TwQVvpJ9l8Rk=
 golang.org/x/image v0.1.0/go.mod h1:iyPr49SD/G/TBxYVB/9RRtGUT5eNbo2u4NamWeQcD5c=
+golang.org/x/image v0.6.0 h1:bR8b5okrPI3g/gyZakLZHeWxAR8Dn5CyxXv1hLH5g/4=
+golang.org/x/image v0.6.0/go.mod h1:MXLdDR43H7cDJq5GEGXEVeeNhPgi+YYEQ2pC1byI1x0=
+golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
+golang.org/x/mobile v0.0.0-20230301163155-e0f57694e12c h1:Gk61ECugwEHL6IiyyNLXNzmu8XslmRP2dS0xjIYhbb4=
+golang.org/x/mobile v0.0.0-20230301163155-e0f57694e12c/go.mod h1:aAjjkJNdrh3PMckS4B10TGS2nag27cbKR1y2BpUxsiY=
+golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.2.0 h1:sZfSu1wtKLGlWI4ZZayP0ck9Y73K1ynO6gqzTdBVdPU=
 golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
+golang.org/x/net v0.6.0 h1:L4ZwwTvKW9gr0ZMS1yrHD9GZhIuVjOBBnaKH+SPQK0Q=
+golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -93,18 +113,27 @@ golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0 h1:z85xZCsEl7bi/KwbNADeBYoOP0++7W1ipu+aGnpwzRM=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
+golang.org/x/term v0.5.0 h1:n2a8QNdAb0sZNpU9R1ALUXBbY+w51fCQDN+7EdxNBsY=
+golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 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=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
+golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=

main.go

@@ -26,6 +26,7 @@ import (
 	"strings"
 	"time"
 
+	pasteclip "golang.design/x/clipboard"
 	flag "maunium.net/go/mauflag"
 
 	"maunium.net/go/gomuks/debug"
@@ -102,6 +103,12 @@ func main() {
 	matrix.SkipVersionCheck = *skipVersionCheck
 	gmx := NewGomuks(MainUIProvider, configDir, dataDir, cacheDir, downloadDir)
 
+	// initialize clipboard
+	err = pasteclip.Init()
+	if err != nil {
+		debug.Print("Failed to initialize clipboard")
+	}
+
 	if *clearCache {
 		debug.Print("Clearing cache as requested by CLI flag")
 		gmx.config.Clear()

matrix/matrix.go

@@ -17,6 +17,7 @@
 package matrix
 
 import (
+	"bytes"
 	"context"
 	"crypto/tls"
 	"encoding/gob"
@@ -32,6 +33,7 @@ import (
 	"reflect"
 	"runtime"
 	dbg "runtime/debug"
+	"strings"
 	"time"
 
 	"maunium.net/go/mautrix"
@@ -996,45 +998,62 @@ func (c *Container) SendEvent(evt *muksevt.Event) (id.EventID, error) {
 	return resp.EventID, nil
 }
 
-func (c *Container) UploadMedia(path string, encrypt bool) (*ifc.UploadedMediaInfo, error) {
+func (c *Container) UploadMedia(media string, encrypt bool) (*ifc.UploadedMediaInfo, error) {
-	var err error
+	var content io.Reader
-	path, err = filepath.Abs(path)
+	var fileSize int64
+	var uploadFileName string
+	var uploadMimeType string
+	var msgtype event.MessageType
+	var info event.FileInfo
+
+	mime := http.DetectContentType([]byte(media))
+	pasted := strings.HasPrefix(mime, "image")
+
+	if pasted {
+		debug.Print("An image was pasted")
+		content = bytes.NewReader([]byte(media))
+		fileSize = content.(*bytes.Reader).Size()
+		msgtype = event.MsgImage
+		uploadMimeType = mime
+		uploadFileName = "image"
+	} else {
+		path, err := filepath.Abs(media)
 		if err != nil {
 			return nil, fmt.Errorf("failed to get absolute path: %w", err)
 		}
 
-	msgtype, info, err := getMediaInfo(path)
-	if err != nil {
-		return nil, err
-	}
-
 		file, err := os.Open(path)
 		if err != nil {
 			return nil, fmt.Errorf("failed to open file: %w", err)
 		}
+		defer file.Close()
 
 		stat, err := file.Stat()
 		if err != nil {
 			return nil, fmt.Errorf("failed to get file info: %w", err)
 		}
 
-	uploadFileName := stat.Name()
+		fileSize = stat.Size()
-	uploadMimeType := info.MimeType
+		uploadFileName = stat.Name()
+		msgtype, info, err = getMediaInfo(path)
+		if err != nil {
+			return nil, err
+		}
+		uploadMimeType = info.MimeType
+		content = file
+	}
 
-	var content io.Reader
 	var encryptionInfo *attachment.EncryptedFile
 	if encrypt {
+		encryptionInfo = attachment.NewEncryptedFile()
+		content = encryptionInfo.EncryptStream(content)
 		uploadMimeType = "application/octet-stream"
 		uploadFileName = ""
-		encryptionInfo = attachment.NewEncryptedFile()
-		content = encryptionInfo.EncryptStream(file)
-	} else {
-		content = file
 	}
 
 	resp, err := c.client.UploadMedia(mautrix.ReqUploadMedia{
 		Content:       content,
-		ContentLength: stat.Size(),
+		ContentLength: fileSize,
 		ContentType:   uploadMimeType,
 		FileName:      uploadFileName,
 	})
@@ -1046,7 +1065,7 @@ func (c *Container) UploadMedia(path string, encrypt bool) (*ifc.UploadedMediaIn
 	return &ifc.UploadedMediaInfo{
 		RespMediaUpload: resp,
 		EncryptionInfo:  encryptionInfo,
-		Name:            stat.Name(),
+		Name:            uploadFileName,
 		MsgType:         msgtype,
 		Info:            &info,
 	}, nil

ui/room-view.go

@@ -26,6 +26,7 @@ import (
 	"github.com/kyokomi/emoji/v2"
 	"github.com/mattn/go-runewidth"
 	"github.com/zyedidia/clipboard"
+	pasteclip "golang.design/x/clipboard"
 
 	"go.mau.fi/mauview"
 	"go.mau.fi/tcell"
@@ -376,7 +377,14 @@ func (view *RoomView) OnKeyEvent(event mauview.KeyEvent) bool {
 	case "send":
 		view.InputSubmit(view.input.GetText())
 		return true
+	case "paste":
+		cb := pasteclip.Read(pasteclip.FmtImage)
+		if cb != nil {
+			view.SendMessageMedia(string(cb))
 		}
+		return true
+	}
+
 	return view.input.OnKeyEvent(event)
 }