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7.0.1 - https://github.com/iris-contrib/community-board/issues/1 https://github.com/iris-contrib/community-board/issues/2

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2017-06-07 07:20:53 +03:00
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233
core/gui/LICENSE
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@@ -1,233 +0,0 @@
Copyright (c) 2017 Gerasimos Maropoulos, ΓΜ. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
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username, kataras, may be used to endorse or promote products derived from
this software without specific prior written permission.
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core/gui/icon/iconunix.go
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core/gui/icon/iconwin.go
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core/gui/tray.go
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// +build !linux
// Copyright 2017 Gerasimos Maropoulos, ΓΜ. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gui
import (
"sync/atomic"
"github.com/getlantern/systray"
"github.com/kataras/iris/core/errors"
"github.com/kataras/iris/core/gui/icon"
)
var trayRunning int32 // != 0 means a system tray is running
type TrayItem struct {
*systray.MenuItem
title string
checked bool
disabled bool
clickEvents []TrayItemClickEvent
}
type TrayItemClickEvent func(*TrayItem)
func newTrayItem(title string) *TrayItem {
// MenuItem's fields are not exported,
// I could modify the source code to completes my needs
// but I will not because the sys tram is only one
// and its items are not shown until .Show()
// So I will use the AddMenuItem because it adds them with a specific order
// and I want to control the order, so this TrayItem
// will be a wrapper of the *systray.MenuItem and it will be shown as independed when tray host.Show called.
return &TrayItem{title: title}
}
func (i *TrayItem) Check() {
i.checked = true
if i.MenuItem != nil {
i.MenuItem.Check()
}
}
func (i *TrayItem) Uncheck() {
i.checked = false
if i.MenuItem != nil {
i.MenuItem.Uncheck()
}
}
func (i *TrayItem) Checked() bool {
return i.checked
}
func (i *TrayItem) Disable() {
i.disabled = true
if i.MenuItem != nil {
i.MenuItem.Disable()
}
}
func (i *TrayItem) Enable() {
i.disabled = false
if i.MenuItem != nil {
i.MenuItem.Enable()
}
}
func (i *TrayItem) Disabled() bool {
return i.disabled
}
func (i *TrayItem) SetTitle(title string) *TrayItem {
i.title = title
if i.MenuItem != nil {
i.MenuItem.SetTitle(title)
i.MenuItem.SetTooltip(title)
}
return i
}
func (i *TrayItem) SetToolTip(tooltip string) *TrayItem {
return i.SetTitle(tooltip)
}
// always checked by-default
func newTrayItemCheckBox(checkedTitle string, onCheck TrayItemClickEvent,
unCheckedTitle string, onUnCheck TrayItemClickEvent) *TrayItem {
item := newTrayItem(checkedTitle)
item.Check()
item.OnClick(func(i *TrayItem) {
if item.Checked() {
item.SetTitle(unCheckedTitle)
item.Uncheck()
onUnCheck(i)
} else {
item.SetTitle(checkedTitle)
item.Check()
onCheck(i)
}
})
return item
}
const (
sepLine = "────────────────"
)
func newTrayItemSeparator() *TrayItem {
item := newTrayItem(sepLine)
item.Disable()
return item
}
func (i *TrayItem) show() {
activeItem := systray.AddMenuItem(i.title, i.title)
if i.disabled {
activeItem.Disable()
}
if i.checked {
activeItem.Check()
}
i.MenuItem = activeItem
go func() {
for {
<-activeItem.ClickedCh
i.fireClick()
}
}()
}
func (i *TrayItem) OnClick(callback TrayItemClickEvent) *TrayItem {
i.clickEvents = append(i.clickEvents, callback)
return i
}
func (i *TrayItem) fireClick() {
for _, cb := range i.clickEvents {
cb(i)
}
}
type TrayHost struct {
items []*TrayItem // useless
version string
shutdownServerCb func()
startServerCb func()
hideCb func()
}
var Tray = defaultTrayHost()
func defaultTrayHost() *TrayHost {
t := new(TrayHost)
return t
}
func (t *TrayHost) putItem(item *TrayItem) {
t.items = append(t.items, item)
}
func (t *TrayHost) PutItem(title string) *TrayItem {
item := newTrayItem(title)
t.putItem(item)
return item
}
func (t *TrayHost) PutCheckBox(checkedTitle string, onCheck TrayItemClickEvent,
unCheckedTitle string, onUnCheck TrayItemClickEvent) *TrayItem {
item := newTrayItemCheckBox(checkedTitle, onCheck, unCheckedTitle, onUnCheck)
t.putItem(item)
return item
}
func (t *TrayHost) PutSeparator() *TrayItem {
item := newTrayItemSeparator()
t.putItem(item)
return item
}
func (t *TrayHost) SetVersion(v string) *TrayHost {
t.version = v
return t
}
func (t *TrayHost) OnServerStatusChange(start func(), shutdown func()) *TrayHost {
t.startServerCb = start
t.shutdownServerCb = shutdown
return t
}
func (t *TrayHost) OnHide(cb func()) *TrayHost {
t.hideCb = cb
return t
}
func (t *TrayHost) Hide() {
atomic.StoreInt32(&trayRunning, -1)
systray.Quit()
if t.hideCb != nil {
t.hideCb()
}
}
func (t *TrayHost) Show() error {
if running := atomic.LoadInt32(&trayRunning); running != 0 {
return errors.New("A system tray is already running, please close that first")
}
topItems := make([]*TrayItem, 0) // dynamic because we don't know if status btn will be shown
versionBtn := newTrayItem("Version " + t.version)
versionBtn.Disable()
topItems = append(topItems, versionBtn)
// if server status listeners have been registered, then show the online/offline button
// otherwise not.
if t.startServerCb != nil && t.shutdownServerCb != nil {
statusBtn := newTrayItemCheckBox("Online", t.startServerClicked, "Offline", t.shutdownServerClicked)
topItems = append(topItems, statusBtn)
}
topItems = append(topItems, newTrayItemSeparator())
t.items = append(topItems, t.items...)
t.PutItem("Hide").OnClick(t.hideClicked)
systray.Run(t.onTrayReady)
return nil
}
func (t *TrayHost) onTrayReady() {
systray.SetIcon(icon.Data)
systray.SetTitle("Iris web server")
systray.SetTooltip("Iris")
for _, item := range t.items {
item.show()
}
atomic.StoreInt32(&trayRunning, 1)
}
func (t *TrayHost) DisableItem(index int) {
if len(t.items)-1 > index {
t.items[index].Disable()
}
}
func (t *TrayHost) startServerClicked(item *TrayItem) {
if t.startServerCb != nil {
t.startServerCb()
}
}
func (t *TrayHost) shutdownServerClicked(item *TrayItem) {
if t.shutdownServerCb != nil {
t.shutdownServerCb()
}
}
func (t *TrayHost) hideClicked(item *TrayItem) {
t.Hide()
}

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core/host/task_gui_tray.go
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// +build !linux
// Copyright 2017 Gerasimos Maropoulos, ΓΜ. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package host
import (
"context"
"time"
"github.com/kataras/iris/core/gui"
)
// ShowTrayTask is a supervisor's built'n task which shows
// the iris tray icon to the taskbar (cross-platform).
//
// It's responsible for the server's status button.
func ShowTrayTask(version string, shutdownTimeout time.Duration) TaskRunnerFunc {
return func(proc TaskProcess) {
t := gui.Tray
// set the label "Version" to the framework's current Version.
t.SetVersion(version)
// active the status button(online/offline).
t.OnServerStatusChange(
// set the first callback (pressed when unchecked).
func() {
go proc.Host().Serve()
},
// set the second call back (pressed when checked, default status with its label setted to :"Offline".
func() {
// when server is shutting down it will send an "http closed" error ,
// that DeferFlow stops from returning that error and exiting the app
// postpone the execution flow, the interrupt signal will restore the flow
// when ctrl/cmd+C pressed.
proc.Host().DeferFlow()
ctx, cancel := context.WithTimeout(context.TODO(), shutdownTimeout)
defer cancel()
proc.Host().Shutdown(ctx)
})
// render the tray icon and block this scheduled task(goroutine.
t.Show()
}
}

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core/host/task_gui_tray_linux.go
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// +build linux
// Copyright 2017 Gerasimos Maropoulos, ΓΜ. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package host
import (
"os"
"time"
)
// ShowTrayTask is a supervisor's built'n task which shows
// the iris tray icon to the taskbar (cross-platform).
//
// It's responsible for the server's status button.
func ShowTrayTask(version string, shutdownTimeout time.Duration) TaskRunnerFunc {
return func(proc TaskProcess) {
os.Stdout.WriteString("Tray icon is not enabled by-default for linux systems,\nyou have to install a dependency first and re-get the Iris pgk:\n")
os.Stdout.WriteString("$ sudo apt-get install libgtk-3-dev libappindicator3-dev\n")
os.Stdout.WriteString("$ go get -u github.com/kataras/iris\n")
// manually:
// os.Stdout.WriteString("remove $GOPATH/src/github.com/kataras/iris/core/host/task_gui_tray_linux.go\n")
// os.Stdout.WriteString("edit $GOPATH/src/github.com/kataras/iris/core/host/task_gui_tray.go and remove the // +build !linux\n")
// os.Stdout.WriteString("edit $GOPATH/src/github.com/kataras/iris/core/gui/tray.go and remove the // +build !linux\n")
}
}