vChewing-macOS/Source/Modules/SessionCtl_HandleStates.swift

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// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
// ====================
// This code is released under the MIT license (SPDX-License-Identifier: MIT)
// ... with NTL restriction stating that:
// No trademark license is granted to use the trade names, trademarks, service
// marks, or product names of Contributor, except as required to fulfill notice
// requirements defined in MIT License.
import PopupCompositionBuffer
import Shared
// MARK: - 調 (State Handling)
extension SessionCtl {
/// 調
///
///
///
/// - Parameter newState:
func handle(state newState: IMEStateProtocol) {
let previous = state
state = newState
switch state.type {
case .ofDeactivated:
Self.ctlCandidateCurrent.delegate = nil
Self.ctlCandidateCurrent.visible = false
Self.tooltipInstance.hide()
if previous.hasComposition {
commit(text: previous.displayedText)
}
clearInlineDisplay()
//
keyHandler.clear()
case .ofEmpty, .ofAbortion:
var previous = previous
if state.type == .ofAbortion {
state = IMEState.ofEmpty()
previous = state
}
Self.ctlCandidateCurrent.visible = false
Self.tooltipInstance.hide()
// .Abortion
if previous.hasComposition, state.type != .ofAbortion {
commit(text: previous.displayedText)
}
//
Self.ctlCandidateCurrent.visible = false
Self.tooltipInstance.hide()
clearInlineDisplay()
//
keyHandler.clear()
case .ofCommitting:
Self.ctlCandidateCurrent.visible = false
Self.tooltipInstance.hide()
let textToCommit = state.textToCommit
if !textToCommit.isEmpty { commit(text: textToCommit) }
clearInlineDisplay()
//
keyHandler.clear()
case .ofInputting:
Self.ctlCandidateCurrent.visible = false
Self.tooltipInstance.hide()
let textToCommit = state.textToCommit
if !textToCommit.isEmpty { commit(text: textToCommit) }
setInlineDisplayWithCursor()
if !state.tooltip.isEmpty {
show(tooltip: state.tooltip)
}
case .ofMarking:
Self.ctlCandidateCurrent.visible = false
setInlineDisplayWithCursor()
if state.tooltip.isEmpty {
Self.tooltipInstance.hide()
} else {
show(tooltip: state.tooltip)
}
case .ofCandidates, .ofAssociates, .ofSymbolTable:
Self.tooltipInstance.hide()
setInlineDisplayWithCursor()
showCandidates()
default: break
}
//
if state.hasComposition, PrefMgr.shared.clientsIMKTextInputIncapable.contains(clientBundleIdentifier) {
Self.popupCompositionBuffer.isTypingDirectionVertical = isVerticalTyping
Self.popupCompositionBuffer.show(
state: state, at: lineHeightRect(zeroCursor: true).origin
)
} else {
Self.popupCompositionBuffer.hide()
}
}
/// .NotEmpty()
func setInlineDisplayWithCursor() {
guard let client = client() else { return }
if state.type == .ofAssociates {
client.setMarkedText(
state.data.attributedStringPlaceholder, selectionRange: NSRange(location: 0, length: 0),
replacementRange: NSRange(location: NSNotFound, length: NSNotFound)
)
return
}
if state.hasComposition || state.isCandidateContainer {
/// selectionRange
/// 0 replacementRangeNSNotFound
///
client.setMarkedText(
attributedStringSecured.0, selectionRange: attributedStringSecured.1,
replacementRange: NSRange(location: NSNotFound, length: NSNotFound)
)
return
}
//
clearInlineDisplay()
}
/// .NotEmpty()
/// setInlineDisplayWithCursor()
private func clearInlineDisplay() {
guard let theClient = client() else { return }
theClient.setMarkedText(
"", selectionRange: NSRange(location: 0, length: 0),
replacementRange: NSRange(location: NSNotFound, length: NSNotFound)
)
}
///
/// IMK commitComposition
private func commit(text: String) {
guard let client = client() else { return }
let buffer = ChineseConverter.kanjiConversionIfRequired(text)
if buffer.isEmpty {
return
}
client.insertText(
buffer, replacementRange: NSRange(location: NSNotFound, length: NSNotFound)
)
}
}