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/*
* Copyright (c) 2016 Jose Pereira <onaips@gmail.com>.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import Carbon
import Cocoa
import Fuse
import KeyboardShortcuts
class SearchViewController: NSViewController, NSTextFieldDelegate, NSWindowDelegate {
@IBOutlet fileprivate var searchText: InputField!
@IBOutlet fileprivate var resultsText: ResultsView!
var hotkey: DDHotKey?
var listProvider: ListProvider?
var promptValue = ""
override func viewDidLoad() {
super.viewDidLoad()
searchText.delegate = self
KeyboardShortcuts.onKeyUp(for: .activateSearch) { [self] in
resumeApp()
}
DistributedNotificationCenter.default.addObserver(
self,
selector: #selector(interfaceModeChanged),
name: .AppleInterfaceThemeChangedNotification,
object: nil
)
let stdinStr = ReadStdin.read()
if stdinStr.count > 0 {
listProvider = PipeListProvider(str: stdinStr)
} else {
listProvider = AppListProvider()
}
let options = DmenuMac.parseOrExit()
if options.prompt != nil {
promptValue = options.prompt!
}
clearFields()
resumeApp()
}
@objc func interfaceModeChanged(sender: NSNotification) {
updateColors()
}
func updateColors() {
guard let window = NSApp.windows.first else { return }
window.isOpaque = false
window.backgroundColor = NSColor.windowBackgroundColor.withAlphaComponent(0.6)
searchText.textColor = NSColor.textColor
}
@objc func resumeApp() {
NSApplication.shared.activate(ignoringOtherApps: true)
view.window?.orderFrontRegardless()
if let controller = view.window as? SearchWindow {
controller.updatePosition()
}
updateColors()
}
func controlTextDidChange(_ obj: Notification) {
if searchText.stringValue == "" {
clearFields()
return
}
// Get provider list, filter using fuzzy search, apply
var scoreDict = [Int: Double]()
let fuse = Fuse(threshold: 0.4)
let pattern = fuse.createPattern(from: searchText.stringValue)
let list = listProvider?.get() ?? []
for (idx, item) in list.enumerated() {
guard let result = fuse.search(pattern, in: item.name) else {
continue
}
scoreDict[idx] = result.score
}
let sortedScoreDict = scoreDict.sorted(by: {$0.1 < $1.1}).map({list[$0.0]})
if !sortedScoreDict.isEmpty {
self.resultsText.list = sortedScoreDict
} else {
self.resultsText.clear()
}
self.resultsText.updateWidth()
}
func control(_ control: NSControl, textView: NSTextView, doCommandBy commandSelector: Selector) -> Bool {
let movingLeft: Bool =
commandSelector == #selector(moveLeft(_:)) ||
commandSelector == #selector(insertBacktab(_:))
let movingRight: Bool =
commandSelector == #selector(moveRight(_:)) ||
commandSelector == #selector(insertTab(_:))
if movingLeft {
resultsText.selectedIndex = resultsText.selectedIndex == 0 ?
resultsText.list.count - 1 : resultsText.selectedIndex - 1
resultsText.updateWidth()
return true
} else if movingRight {
resultsText.selectedIndex = (resultsText.selectedIndex + 1) % resultsText.list.count
resultsText.updateWidth()
return true
} else if commandSelector == #selector(insertNewline(_:)) {
// open current selected app
if let item = resultsText.selectedItem() {
listProvider?.doAction(item: item)
closeApp()
}
return true
} else if commandSelector == #selector(cancelOperation(_:)) {
closeApp()
return true
}
return false
}
func clearFields() {
self.searchText.stringValue = promptValue
self.resultsText.list = listProvider?.get().sorted(by: {$0.name < $1.name}) ?? []
}
func closeApp() {
clearFields()
if promptValue == "" {
NSApplication.shared.hide(nil)
}
}
}
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