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795 lines
21 KiB
Go
795 lines
21 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"fmt"
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"image"
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"image/color"
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"strings"
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"time"
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"gioui.org/f32"
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"gioui.org/io/pointer"
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"gioui.org/io/system"
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"gioui.org/layout"
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"gioui.org/op"
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"gioui.org/op/clip"
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"gioui.org/op/paint"
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"gioui.org/text"
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"gioui.org/unit"
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"gioui.org/widget"
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"gioui.org/widget/material"
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"golang.org/x/exp/shiny/materialdesign/icons"
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"tailscale.com/ipn"
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"tailscale.com/tailcfg"
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_ "image/png"
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)
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type UI struct {
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theme *material.Theme
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store *stateStore
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// root is the scrollable list of the main UI.
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root layout.List
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// enabled is the switch for enabling or disabling the VPN.
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enabled widget.Bool
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search widget.Editor
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signin widget.Clickable
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self widget.Clickable
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peers []widget.Clickable
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intro struct {
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start widget.Clickable
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show bool
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}
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menu struct {
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open widget.Clickable
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dismiss Dismiss
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show bool
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copy widget.Clickable
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reauth widget.Clickable
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logout widget.Clickable
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}
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// The current pop-up message, if any
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message struct {
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text string
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// t0 is the time when the most recent message appeared.
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t0 time.Time
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}
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icons struct {
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search *widget.Icon
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more *widget.Icon
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logo paint.ImageOp
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}
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events []UIEvent
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}
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// An UIPeer is either a peer or a section header
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// with the user information.
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type UIPeer struct {
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// Owner of the peer.
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Owner tailcfg.UserID
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// Name is the owner's name in all caps (for section headers).
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Name string
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// Peer is nil for section headers.
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Peer *tailcfg.Node
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}
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const (
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headerColor = 0x496495
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infoColor = 0x3a517b
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white = 0xffffff
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)
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const (
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keyShowIntro = "ui.showintro"
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)
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type (
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C = layout.Context
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D = layout.Dimensions
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)
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func newUI(store *stateStore) (*UI, error) {
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searchIcon, err := widget.NewIcon(icons.ActionSearch)
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if err != nil {
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return nil, err
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}
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moreIcon, err := widget.NewIcon(icons.NavigationMoreVert)
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if err != nil {
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return nil, err
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}
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logoData, err := tailscalePngBytes()
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if err != nil {
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return nil, err
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}
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logo, _, err := image.Decode(bytes.NewReader(logoData))
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if err != nil {
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return nil, err
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}
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ui := &UI{
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theme: material.NewTheme(),
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store: store,
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}
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ui.intro.show, _ = store.ReadBool(keyShowIntro, true)
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ui.icons.search = searchIcon
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ui.icons.more = moreIcon
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ui.icons.logo = paint.NewImageOp(logo)
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ui.icons.more.Color = rgb(white)
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ui.icons.search.Color = ui.theme.Color.Hint
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ui.root.Axis = layout.Vertical
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ui.search.SingleLine = true
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return ui, nil
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}
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func (ui *UI) layout(gtx layout.Context, sysIns system.Insets, state *clientState) []UIEvent {
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ui.events = nil
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if ui.enabled.Changed() {
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ui.events = append(ui.events, ConnectEvent{Enable: ui.enabled.Value})
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}
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ui.enabled.Value = state.WantsEnabled
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for _, e := range ui.search.Events() {
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if _, ok := e.(widget.ChangeEvent); ok {
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ui.events = append(ui.events, SearchEvent{Query: ui.search.Text()})
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break
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}
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}
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for ui.menu.open.Clicked() {
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ui.menu.show = !ui.menu.show
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}
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netmap := state.net.NetworkMap
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var localName, localAddr string
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var expiry time.Time
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if netmap != nil {
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expiry = netmap.Expiry
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localName = netmap.Hostinfo.Hostname
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if addrs := netmap.Addresses; len(addrs) > 0 {
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localAddr = addrs[0].IP.String()
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}
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}
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if ui.signin.Clicked() {
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ui.events = append(ui.events, ReauthEvent{})
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}
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if ui.menuClicked(&ui.menu.copy) && localAddr != "" {
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ui.copyAddress(gtx, localAddr)
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}
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if ui.menuClicked(&ui.menu.reauth) {
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ui.events = append(ui.events, ReauthEvent{})
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}
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if ui.menuClicked(&ui.menu.logout) {
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ui.events = append(ui.events, LogoutEvent{})
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}
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for len(ui.peers) < len(state.Peers) {
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ui.peers = append(ui.peers, widget.Clickable{})
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}
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if max := len(state.Peers); len(ui.peers) > max {
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ui.peers = ui.peers[:max]
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}
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const numHeaders = 5
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n := numHeaders + len(state.Peers)
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needsLogin := state.net.State == ipn.NeedsLogin
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ui.root.Layout(gtx, n, func(gtx C, idx int) D {
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var in layout.Inset
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if idx == n-1 {
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// The last list element includes the bottom system
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// inset.
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in.Bottom = sysIns.Bottom
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}
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return in.Layout(gtx, func(gtx C) D {
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switch idx {
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case 0:
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return ui.layoutTop(gtx, sysIns, &state.net)
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case 1:
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if netmap == nil {
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return D{}
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}
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return ui.layoutLocal(gtx, sysIns, localName, localAddr)
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case 2:
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if state.net.State <= ipn.NeedsLogin {
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return D{}
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}
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return ui.layoutSearchbar(gtx, sysIns)
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case 3:
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if !needsLogin {
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return D{}
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}
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return ui.layoutSignIn(gtx)
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case 4:
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if needsLogin || state.net.HasInternet {
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return D{}
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}
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return ui.layoutDisconnected(gtx)
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default:
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if needsLogin {
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return D{}
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}
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pidx := idx - numHeaders
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p := &state.Peers[pidx]
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if p.Peer == nil {
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name := p.Name
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if p.Owner == netmap.User {
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name = "MY DEVICES"
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}
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return ui.layoutSection(gtx, sysIns, name)
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} else {
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clk := &ui.peers[pidx]
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return ui.layoutPeer(gtx, sysIns, p, clk)
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}
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}
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})
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})
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// "Copied" message.
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ui.layoutMessage(gtx, sysIns)
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// 3-dots menu.
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if ui.menu.show {
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ui.layoutMenu(gtx, sysIns, expiry)
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}
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// "Get started".
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if ui.intro.show {
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if ui.intro.start.Clicked() {
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ui.store.WriteBool(keyShowIntro, false)
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ui.intro.show = false
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}
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ui.layoutIntro(gtx)
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}
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return ui.events
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}
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// Dismiss is a widget that detects pointer presses.
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type Dismiss struct {
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}
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func (d *Dismiss) Add(gtx layout.Context) {
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var stack op.StackOp
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stack.Push(gtx.Ops)
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defer stack.Pop()
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pointer.Rect(image.Rectangle{Max: gtx.Constraints.Min}).Add(gtx.Ops)
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pointer.InputOp{Tag: d}.Add(gtx.Ops)
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}
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func (d *Dismiss) Dismissed(gtx layout.Context) bool {
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for _, e := range gtx.Events(d) {
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if e, ok := e.(pointer.Event); ok {
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if e.Type == pointer.Press {
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return true
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}
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}
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}
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return false
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}
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// layoutSignIn lays out the sign in button(s).
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func (ui *UI) layoutSignIn(gtx layout.Context) layout.Dimensions {
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return layout.Inset{Top: unit.Dp(48)}.Layout(gtx, func(gtx C) D {
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return layout.Center.Layout(gtx, func(gtx C) D {
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signin := material.Button(ui.theme, &ui.signin, "Sign In")
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signin.Background = rgb(headerColor)
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return signin.Layout(gtx)
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})
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})
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}
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// layoutDisconnected lays out the "please connect to the internet"
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// message.
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func (ui *UI) layoutDisconnected(gtx layout.Context) layout.Dimensions {
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return layout.UniformInset(unit.Dp(16)).Layout(gtx, func(gtx C) D {
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return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
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layout.Rigid(func(gtx C) D {
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return layout.Inset{Top: unit.Dp(8)}.Layout(gtx, func(gtx C) D {
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title := material.H6(ui.theme, "No internet connection")
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title.Alignment = text.Middle
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return title.Layout(gtx)
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})
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}),
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layout.Rigid(func(gtx C) D {
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return layout.Inset{Top: unit.Dp(8)}.Layout(gtx, func(gtx C) D {
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msg := material.Body2(ui.theme, "Tailscale is paused while your device is offline. Please reconnect to the internet.")
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msg.Alignment = text.Middle
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return msg.Layout(gtx)
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})
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}),
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)
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})
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}
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// layoutIntro lays out the intro page with the logo and terms.
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func (ui *UI) layoutIntro(gtx layout.Context) {
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fill{rgb(0x232323)}.Layout(gtx, gtx.Constraints.Max)
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layout.Flex{Axis: layout.Vertical}.Layout(gtx,
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// 9 dot logo.
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layout.Rigid(func(gtx C) D {
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return layout.Inset{Top: unit.Dp(80), Bottom: unit.Dp(48)}.Layout(gtx, func(gtx C) D {
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return layout.N.Layout(gtx, func(gtx C) D {
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sz := gtx.Px(unit.Dp(72))
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drawLogo(gtx.Ops, sz)
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return layout.Dimensions{Size: image.Pt(sz, sz)}
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})
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})
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}),
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// "tailscale".
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layout.Rigid(func(gtx C) D {
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return layout.N.Layout(gtx, func(gtx C) D {
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img := ui.icons.logo
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img.Add(gtx.Ops)
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sz := img.Size()
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aspect := float32(sz.Y) / float32(sz.X)
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w := gtx.Px(unit.Dp(200))
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h := int(float32(w)*aspect + .5)
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paint.PaintOp{Rect: f32.Rectangle{Max: f32.Pt(float32(w), float32(h))}}.Add(gtx.Ops)
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return layout.Dimensions{Size: image.Pt(w, h)}
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})
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}),
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// Terms.
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layout.Rigid(func(gtx C) D {
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return layout.Inset{
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Top: unit.Dp(48),
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Left: unit.Dp(32),
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Right: unit.Dp(32),
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}.Layout(gtx, func(gtx C) D {
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terms := material.Body2(ui.theme, termsText)
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terms.Color = rgb(0xbfbfbf)
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terms.Alignment = text.Middle
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return terms.Layout(gtx)
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})
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}),
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// "Get started".
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layout.Rigid(func(gtx C) D {
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return layout.UniformInset(unit.Dp(16)).Layout(gtx, func(gtx C) D {
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start := material.Button(ui.theme, &ui.intro.start, "Get Started")
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start.Inset = layout.UniformInset(unit.Dp(16))
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start.CornerRadius = unit.Dp(16)
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start.Background = rgb(0x496495)
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start.TextSize = unit.Sp(20)
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return start.Layout(gtx)
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})
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}),
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)
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}
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// menuClicked is like btn.Clicked, but also closes the menu if true.
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func (ui *UI) menuClicked(btn *widget.Clickable) bool {
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cl := btn.Clicked()
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if cl {
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ui.menu.show = false
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}
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return cl
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}
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// layoutMenu lays out the menu activated by the 3 dots button.
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func (ui *UI) layoutMenu(gtx layout.Context, sysIns system.Insets, expiry time.Time) {
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ui.menu.dismiss.Add(gtx)
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if ui.menu.dismiss.Dismissed(gtx) {
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ui.menu.show = false
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}
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layout.Inset{
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Top: unit.Add(gtx, sysIns.Top, unit.Dp(2)),
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Right: unit.Add(gtx, sysIns.Right, unit.Dp(2)),
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}.Layout(gtx, func(gtx C) D {
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return layout.NE.Layout(gtx, func(gtx C) D {
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return Background{Color: argb(0x33000000), CornerRadius: unit.Dp(2)}.Layout(gtx, func(gtx C) D {
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return layout.UniformInset(unit.Px(1)).Layout(gtx, func(gtx C) D {
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return Background{Color: rgb(0xfafafa), CornerRadius: unit.Px(4)}.Layout(gtx, func(gtx C) D {
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menu := &ui.menu
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items := []struct {
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btn *widget.Clickable
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title string
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}{
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{title: "Copy My IP Address", btn: &menu.copy},
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{title: "Reauthenticate", btn: &menu.reauth},
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{title: "Log out", btn: &menu.logout},
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}
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// Lay out menu items twice; once for
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// measuring the widest item, once for actual layout.
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var maxWidth int
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var minWidth int
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children := []layout.FlexChild{
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layout.Rigid(func(gtx C) D {
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return layout.Inset{
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Top: unit.Dp(16),
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Right: unit.Dp(16),
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Left: unit.Dp(16),
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Bottom: unit.Dp(4),
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}.Layout(gtx, func(gtx C) D {
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gtx.Constraints.Min.X = minWidth
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var expiryStr string
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const fmtStr = time.Stamp
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switch {
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case expiry.IsZero():
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expiryStr = "Expires: (never)"
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case time.Now().After(expiry):
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expiryStr = fmt.Sprintf("Expired: %s", expiry.Format(fmtStr))
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default:
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expiryStr = fmt.Sprintf("Expires: %s", expiry.Format(fmtStr))
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}
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l := material.Caption(ui.theme, expiryStr)
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l.Color = rgb(0x8f8f8f)
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dims := l.Layout(gtx)
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if w := dims.Size.X; w > maxWidth {
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maxWidth = w
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}
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return dims
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})
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}),
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}
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for i := 0; i < len(items); i++ {
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it := &items[i]
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children = append(children, layout.Rigid(func(gtx C) D {
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return material.Clickable(gtx, it.btn, func(gtx C) D {
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return layout.UniformInset(unit.Dp(16)).Layout(gtx, func(gtx C) D {
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gtx.Constraints.Min.X = minWidth
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dims := material.Body1(ui.theme, it.title).Layout(gtx)
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if w := dims.Size.X; w > maxWidth {
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maxWidth = w
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}
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return dims
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})
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})
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}))
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}
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f := layout.Flex{Axis: layout.Vertical}
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// First pass: record and discard operations
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// and determine widest item.
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var m op.MacroOp
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m.Record(gtx.Ops)
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f.Layout(gtx, children...)
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m.Stop()
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// Second pass: layout items with equal width.
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minWidth = maxWidth
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return f.Layout(gtx, children...)
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})
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})
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})
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})
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})
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}
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func (ui *UI) layoutMessage(gtx layout.Context, sysIns system.Insets) layout.Dimensions {
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s := ui.message.text
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if s == "" {
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return D{}
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}
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now := gtx.Now()
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d := now.Sub(ui.message.t0)
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rem := 4*time.Second - d
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if rem < 0 {
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return D{}
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}
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op.InvalidateOp{At: now.Add(rem)}.Add(gtx.Ops)
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return layout.S.Layout(gtx, func(gtx C) D {
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return layout.Inset{Bottom: unit.Add(gtx, sysIns.Bottom, unit.Dp(8))}.Layout(gtx, func(gtx C) D {
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return Background{Color: rgb(0x323232), CornerRadius: unit.Dp(5)}.Layout(gtx, func(gtx C) D {
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return layout.UniformInset(unit.Dp(12)).Layout(gtx, func(gtx C) D {
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l := material.Body2(ui.theme, s)
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l.Color = rgb(0xdddddd)
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return l.Layout(gtx)
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})
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})
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})
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})
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}
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func (ui *UI) showMessage(gtx layout.Context, msg string) {
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ui.message.text = msg
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ui.message.t0 = gtx.Now()
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op.InvalidateOp{}.Add(gtx.Ops)
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}
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|
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// layoutPeer lays out a peer name and IP address (e.g.
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// "localhost\n100.100.100.101")
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func (ui *UI) layoutPeer(gtx layout.Context, sysIns system.Insets, p *UIPeer, clk *widget.Clickable) layout.Dimensions {
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for clk.Clicked() {
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if addrs := p.Peer.Addresses; len(addrs) > 0 {
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ui.copyAddress(gtx, addrs[0].IP.String())
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}
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}
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return material.Clickable(gtx, clk, func(gtx C) D {
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return layout.Inset{
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Top: unit.Dp(8),
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Right: unit.Max(gtx, sysIns.Right, unit.Dp(16)),
|
|
Left: unit.Max(gtx, sysIns.Left, unit.Dp(16)),
|
|
Bottom: unit.Dp(8),
|
|
}.Layout(gtx, func(gtx C) D {
|
|
gtx.Constraints.Min.X = gtx.Constraints.Max.X
|
|
return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
|
|
layout.Rigid(func(gtx C) D {
|
|
return layout.Inset{Bottom: unit.Dp(4)}.Layout(gtx, func(gtx C) D {
|
|
name := p.Peer.Hostinfo.Hostname
|
|
if name == "" {
|
|
name = p.Peer.ID.String()
|
|
}
|
|
return material.H6(ui.theme, name).Layout(gtx)
|
|
})
|
|
}),
|
|
layout.Rigid(func(gtx C) D {
|
|
var addrs []string
|
|
for _, addr := range p.Peer.Addresses {
|
|
addrs = append(addrs, addr.IP.String())
|
|
}
|
|
l := material.Body2(ui.theme, strings.Join(addrs, ","))
|
|
l.Color = rgb(0x434343)
|
|
return l.Layout(gtx)
|
|
}),
|
|
)
|
|
})
|
|
})
|
|
}
|
|
|
|
// layoutSection lays out a section title (e.g. "My devices").
|
|
func (ui *UI) layoutSection(gtx layout.Context, sysIns system.Insets, title string) layout.Dimensions {
|
|
return Background{Color: rgb(0xe1e0e9)}.Layout(gtx, func(gtx C) D {
|
|
return layout.Inset{
|
|
Top: unit.Dp(16),
|
|
Right: unit.Max(gtx, sysIns.Right, unit.Dp(16)),
|
|
Left: unit.Max(gtx, sysIns.Left, unit.Dp(16)),
|
|
Bottom: unit.Dp(16),
|
|
}.Layout(gtx, func(gtx C) D {
|
|
l := material.Body1(ui.theme, title)
|
|
l.Color = rgb(0x6f797d)
|
|
return l.Layout(gtx)
|
|
})
|
|
})
|
|
}
|
|
|
|
// layoutTop lays out the top controls: toggle, status and menu dots.
|
|
func (ui *UI) layoutTop(gtx layout.Context, sysIns system.Insets, state *NetworkState) layout.Dimensions {
|
|
in := layout.Inset{
|
|
Top: unit.Dp(16),
|
|
Bottom: unit.Dp(16),
|
|
}
|
|
return Background{Color: rgb(headerColor)}.Layout(gtx, func(gtx C) D {
|
|
return layout.Inset{
|
|
Top: sysIns.Top,
|
|
Right: unit.Max(gtx, sysIns.Right, unit.Dp(8)),
|
|
Left: unit.Max(gtx, sysIns.Left, unit.Dp(16)),
|
|
}.Layout(gtx, func(gtx C) D {
|
|
return layout.Flex{Alignment: layout.Middle}.Layout(gtx,
|
|
layout.Rigid(func(gtx C) D {
|
|
return in.Layout(gtx, func(gtx C) D {
|
|
sw := material.Switch(ui.theme, &ui.enabled)
|
|
sw.Color = rgb(white)
|
|
return sw.Layout(gtx)
|
|
})
|
|
}),
|
|
layout.Flexed(1, func(gtx C) D {
|
|
return in.Layout(gtx, func(gtx C) D {
|
|
return layout.Inset{Left: unit.Dp(16)}.Layout(gtx, func(gtx C) D {
|
|
lbl := material.Body1(ui.theme, statusString(state.State))
|
|
lbl.Color = rgb(0xffffff)
|
|
return lbl.Layout(gtx)
|
|
})
|
|
})
|
|
}),
|
|
layout.Rigid(func(gtx C) D {
|
|
if state.State <= ipn.NeedsLogin {
|
|
return D{}
|
|
}
|
|
return material.Clickable(gtx, &ui.menu.open, func(gtx C) D {
|
|
return layout.UniformInset(unit.Dp(8)).Layout(gtx, func(gtx C) D {
|
|
return ui.icons.more.Layout(gtx, unit.Dp(24))
|
|
})
|
|
})
|
|
}),
|
|
)
|
|
})
|
|
})
|
|
}
|
|
|
|
func statusString(state ipn.State) string {
|
|
switch state {
|
|
case ipn.Stopped:
|
|
return "Stopped"
|
|
case ipn.Starting:
|
|
return "Starting..."
|
|
case ipn.Running:
|
|
return "Active"
|
|
case ipn.NeedsMachineAuth:
|
|
return "Awaiting Approval"
|
|
case ipn.NeedsLogin:
|
|
return "Needs Authentication"
|
|
default:
|
|
return "Loading..."
|
|
}
|
|
}
|
|
|
|
func (ui *UI) copyAddress(gtx layout.Context, addr string) {
|
|
ui.events = append(ui.events, CopyEvent{Text: addr})
|
|
ui.showMessage(gtx, fmt.Sprintf("Copied %s", addr))
|
|
}
|
|
|
|
// layoutLocal lays out the information box about the local node's
|
|
// name and IP address.
|
|
func (ui *UI) layoutLocal(gtx layout.Context, sysIns system.Insets, host, addr string) layout.Dimensions {
|
|
for ui.self.Clicked() {
|
|
ui.copyAddress(gtx, addr)
|
|
}
|
|
return Background{Color: rgb(headerColor)}.Layout(gtx, func(gtx C) D {
|
|
return layout.Inset{
|
|
Right: unit.Max(gtx, sysIns.Right, unit.Dp(8)),
|
|
Left: unit.Max(gtx, sysIns.Left, unit.Dp(8)),
|
|
Bottom: unit.Dp(8),
|
|
}.Layout(gtx, func(gtx C) D {
|
|
return Background{Color: rgb(infoColor), CornerRadius: unit.Dp(8)}.Layout(gtx, func(gtx C) D {
|
|
return material.Clickable(gtx, &ui.self, func(gtx C) D {
|
|
return layout.UniformInset(unit.Dp(16)).Layout(gtx, func(gtx C) D {
|
|
gtx.Constraints.Min.X = gtx.Constraints.Max.X
|
|
return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
|
|
layout.Rigid(func(gtx C) D {
|
|
return layout.Inset{Bottom: unit.Dp(4)}.Layout(gtx, func(gtx C) D {
|
|
name := material.H6(ui.theme, host)
|
|
name.Color = ui.theme.Color.InvText
|
|
return name.Layout(gtx)
|
|
})
|
|
}),
|
|
layout.Rigid(func(gtx C) D {
|
|
name := material.Body2(ui.theme, addr)
|
|
name.Color = rgb(0xc5ccd9)
|
|
return name.Layout(gtx)
|
|
}),
|
|
)
|
|
})
|
|
})
|
|
})
|
|
})
|
|
})
|
|
}
|
|
|
|
func (ui *UI) layoutSearchbar(gtx layout.Context, sysIns system.Insets) layout.Dimensions {
|
|
return Background{Color: rgb(0xf0eff6)}.Layout(gtx, func(gtx C) D {
|
|
return layout.Inset{
|
|
Top: unit.Dp(8),
|
|
Right: unit.Max(gtx, sysIns.Right, unit.Dp(8)),
|
|
Left: unit.Max(gtx, sysIns.Left, unit.Dp(8)),
|
|
Bottom: unit.Dp(8),
|
|
}.Layout(gtx, func(gtx C) D {
|
|
return Background{Color: rgb(0xe3e2ea), CornerRadius: unit.Dp(8)}.Layout(gtx, func(gtx C) D {
|
|
return layout.UniformInset(unit.Dp(8)).Layout(gtx, func(gtx C) D {
|
|
return layout.Flex{Alignment: layout.Middle}.Layout(gtx,
|
|
layout.Rigid(func(gtx C) D {
|
|
return ui.icons.search.Layout(gtx, unit.Dp(24))
|
|
}),
|
|
layout.Flexed(1,
|
|
material.Editor(ui.theme, &ui.search, "Search by hostname...").Layout,
|
|
),
|
|
)
|
|
})
|
|
})
|
|
})
|
|
})
|
|
}
|
|
|
|
// drawLogo draws the Tailscale logo using vector operations.
|
|
func drawLogo(ops *op.Ops, size int) {
|
|
scale := float32(size) / 680
|
|
discDia := 170 * scale
|
|
off := 172 * 1.5 * scale
|
|
tx := op.TransformOp{}.Offset(f32.Pt(off, 0))
|
|
ty := op.TransformOp{}.Offset(f32.Pt(0, off))
|
|
|
|
var st op.StackOp
|
|
st.Push(ops)
|
|
defer st.Pop()
|
|
|
|
var row op.StackOp
|
|
// First row of discs.
|
|
row.Push(ops)
|
|
drawDisc(ops, discDia, rgb(0x54514d))
|
|
tx.Add(ops)
|
|
drawDisc(ops, discDia, rgb(0x54514d))
|
|
tx.Add(ops)
|
|
drawDisc(ops, discDia, rgb(0x54514d))
|
|
row.Pop()
|
|
|
|
ty.Add(ops)
|
|
// Second row.
|
|
row.Push(ops)
|
|
drawDisc(ops, discDia, rgb(0xfffdfa))
|
|
tx.Add(ops)
|
|
drawDisc(ops, discDia, rgb(0xfffdfa))
|
|
tx.Add(ops)
|
|
drawDisc(ops, discDia, rgb(0xfffdfa))
|
|
row.Pop()
|
|
|
|
ty.Add(ops)
|
|
// Third row.
|
|
row.Push(ops)
|
|
drawDisc(ops, discDia, rgb(0x54514d))
|
|
tx.Add(ops)
|
|
drawDisc(ops, discDia, rgb(0xfffdfa))
|
|
tx.Add(ops)
|
|
drawDisc(ops, discDia, rgb(0x54514d))
|
|
row.Pop()
|
|
}
|
|
|
|
func drawDisc(ops *op.Ops, radius float32, col color.RGBA) {
|
|
var st op.StackOp
|
|
st.Push(ops)
|
|
defer st.Pop()
|
|
r2 := radius * .5
|
|
dr := f32.Rectangle{Max: f32.Pt(radius, radius)}
|
|
clip.Rect{
|
|
Rect: dr,
|
|
NE: r2, NW: r2, SE: r2, SW: r2,
|
|
}.Op(ops).Add(ops)
|
|
paint.ColorOp{Color: col}.Add(ops)
|
|
paint.PaintOp{Rect: dr}.Add(ops)
|
|
}
|
|
|
|
// background lays out a widget and draws a color background behind
|
|
// it.
|
|
type Background struct {
|
|
Color color.RGBA
|
|
CornerRadius unit.Value
|
|
}
|
|
|
|
func (b Background) Layout(gtx layout.Context, w layout.Widget) layout.Dimensions {
|
|
var m op.MacroOp
|
|
m.Record(gtx.Ops)
|
|
dims := w(gtx)
|
|
sz := dims.Size
|
|
m.Stop()
|
|
// Clip corners, if any.
|
|
if r := gtx.Px(b.CornerRadius); r > 0 {
|
|
rr := float32(r)
|
|
clip.Rect{
|
|
Rect: f32.Rectangle{Max: f32.Point{
|
|
X: float32(sz.X),
|
|
Y: float32(sz.Y),
|
|
}},
|
|
NE: rr, NW: rr, SE: rr, SW: rr,
|
|
}.Op(gtx.Ops).Add(gtx.Ops)
|
|
}
|
|
fill{b.Color}.Layout(gtx, sz)
|
|
m.Add()
|
|
return dims
|
|
}
|
|
|
|
type fill struct {
|
|
col color.RGBA
|
|
}
|
|
|
|
func (f fill) Layout(gtx layout.Context, sz image.Point) layout.Dimensions {
|
|
var st op.StackOp
|
|
st.Push(gtx.Ops)
|
|
defer st.Pop()
|
|
dr := f32.Rectangle{Max: layout.FPt(sz)}
|
|
paint.ColorOp{Color: f.col}.Add(gtx.Ops)
|
|
paint.PaintOp{Rect: dr}.Add(gtx.Ops)
|
|
return layout.Dimensions{Size: sz}
|
|
}
|
|
|
|
func rgb(c uint32) color.RGBA {
|
|
return argb((0xff << 24) | c)
|
|
}
|
|
|
|
func argb(c uint32) color.RGBA {
|
|
return color.RGBA{A: uint8(c >> 24), R: uint8(c >> 16), G: uint8(c >> 8), B: uint8(c)}
|
|
}
|
|
|
|
const termsText = `Tailscale is a mesh VPN for securely connecting your devices. All connections are device-to-device, so we never see your data.
|
|
|
|
We collect and use your email address and name, as well as your device name, OS version, and IP address in order to help you to connect your devices and manage your settings. We log when you are connected to your network.`
|