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application.go
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application.go
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// Copyright (c) 2023 The Go-Curses Authors
//
// 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 ctk
import (
"github.com/go-curses/cdk"
"github.com/go-curses/cdk/lib/enums"
)
const TypeApplication cdk.CTypeTag = "ctk-application"
func init() {
_ = cdk.TypesManager.AddType(TypeApplication, nil)
}
// Application Hierarchy:
// Object
// +- Application
//
// An Application is the CTK replacement for cdk.Application.
type Application interface {
cdk.Application
AccelMap() (accelMap AccelMap)
AccelGroup() (accelGroup AccelGroup)
}
var _ Application = (*CApplication)(nil)
type CApplication struct {
cdk.CApplication
accelGroup AccelGroup
accelMap AccelMap
windows []Window
}
func NewApplication(name, usage, description, version, tag, title, ttyPath string) (app Application) {
app = &CApplication{}
app.Init()
app.Reconfigure(name, usage, description, version, tag, title, ttyPath)
return
}
func (app *CApplication) Init() (already bool) {
if app.InitTypeItem(TypeApplication, app) {
return true
}
app.CApplication.Init()
app.accelMap = &CAccelMap{}
app.accelMap.Init()
app.accelGroup = NewAccelGroup()
app.Connect(cdk.SignalSetupDisplay, ApplicationSetupDisplayHandle, func(_ []interface{}, argv ...interface{}) enums.EventFlag {
if display, ok := argv[0].(cdk.Display); ok {
if !display.Handled(cdk.SignalFocusedWindow, ApplicationFocusedWindowHandle) {
display.Connect(cdk.SignalFocusedWindow, ApplicationFocusedWindowHandle, app.displayWindowsChanged)
}
if !display.Handled(cdk.SignalMappedWindow, ApplicationMappedWindowHandle) {
display.Connect(cdk.SignalMappedWindow, ApplicationMappedWindowHandle, app.displayWindowsChanged)
}
if !display.Handled(cdk.SignalUnmappedWindow, ApplicationUnmappedWindowHandle) {
display.Connect(cdk.SignalUnmappedWindow, ApplicationUnmappedWindowHandle, app.displayWindowsChanged)
}
}
return enums.EVENT_PASS
})
return false
}
func (app *CApplication) AccelMap() (accelMap AccelMap) {
app.RLock()
defer app.RUnlock()
accelMap = app.accelMap
return
}
func (app *CApplication) AccelGroup() (accelGroup AccelGroup) {
app.RLock()
defer app.RUnlock()
accelGroup = app.accelGroup
return
}
func (app *CApplication) GetWindows() (windows []Window) {
app.RLock()
for _, w := range app.windows {
windows = append(windows, w)
}
app.RUnlock()
return
}
func (app *CApplication) displayWindowsChanged(_ []interface{}, argv ...interface{}) enums.EventFlag {
if display := app.Display(); display != nil {
app.Lock()
windows := display.GetWindows()
ctkWindows := []Window{}
for _, w := range windows {
if ww, ok := w.Self().(Window); ok {
ctkWindows = append(ctkWindows, ww)
}
}
app.windows = ctkWindows
app.Unlock()
}
return enums.EVENT_PASS
}
const ApplicationSetupDisplayHandle = "application-setup-display-handler"
const ApplicationFocusedWindowHandle = "application-focused-window-handler"
const ApplicationMappedWindowHandle = "application-mapped-window-handler"
const ApplicationUnmappedWindowHandle = "application-unmapped-window-handler"