| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * 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 androidx.ui.desktop |
| |
| import androidx.compose.ui.text.input.BackspaceKeyEditOp |
| import androidx.compose.ui.text.input.CommitTextEditOp |
| import androidx.compose.ui.text.input.EditOperation |
| import androidx.compose.ui.text.input.TextFieldValue |
| import androidx.compose.ui.text.input.ImeAction |
| import androidx.compose.ui.text.input.KeyboardType |
| import androidx.compose.ui.text.input.MoveCursorEditOp |
| import androidx.compose.ui.text.input.PlatformTextInputService |
| import androidx.ui.geometry.Rect |
| |
| import java.awt.event.KeyEvent |
| |
| internal class DesktopPlatformInput : PlatformTextInputService { |
| var onEditCommand: ((List<EditOperation>) -> Unit)? = null |
| var onImeActionPerformed: ((ImeAction) -> Unit)? = null |
| var imeAction: ImeAction? = null |
| |
| override fun startInput( |
| value: TextFieldValue, |
| keyboardType: KeyboardType, |
| imeAction: ImeAction, |
| onEditCommand: (List<EditOperation>) -> Unit, |
| onImeActionPerformed: (ImeAction) -> Unit |
| ) { |
| this.onEditCommand = onEditCommand |
| this.onImeActionPerformed = onImeActionPerformed |
| this.imeAction = imeAction |
| } |
| |
| override fun stopInput() { |
| this.onEditCommand = null |
| this.onImeActionPerformed = null |
| this.imeAction = null |
| } |
| |
| override fun showSoftwareKeyboard() {} |
| |
| override fun hideSoftwareKeyboard() {} |
| |
| override fun onStateUpdated(value: TextFieldValue) { |
| } |
| |
| override fun notifyFocusedRect(rect: Rect) {} |
| |
| @Suppress("UNUSED_PARAMETER") |
| fun onKeyPressed(keyCode: Int, char: Char) { |
| onEditCommand?.let { |
| when (keyCode) { |
| KeyEvent.VK_LEFT -> { |
| it.invoke(listOf(MoveCursorEditOp(-1))) |
| } |
| KeyEvent.VK_RIGHT -> { |
| it.invoke(listOf(MoveCursorEditOp(1))) |
| } |
| KeyEvent.VK_BACK_SPACE -> { |
| it.invoke(listOf(BackspaceKeyEditOp())) |
| } |
| KeyEvent.VK_ENTER -> { |
| if (imeAction == ImeAction.Unspecified) { |
| it.invoke(listOf(CommitTextEditOp("", 1))) |
| } else |
| onImeActionPerformed?.invoke(imeAction!!) |
| } |
| else -> Unit |
| } |
| } |
| } |
| |
| @Suppress("UNUSED_PARAMETER") |
| fun onKeyReleased(keyCode: Int, char: Char) { |
| } |
| |
| private fun Char.isPrintable(): Boolean { |
| val block = Character.UnicodeBlock.of(this) |
| return (!Character.isISOControl(this)) && |
| this != KeyEvent.CHAR_UNDEFINED && |
| block != null && |
| block != Character.UnicodeBlock.SPECIALS |
| } |
| |
| fun onKeyTyped(char: Char) { |
| onEditCommand?.let { |
| if (char.isPrintable()) { |
| it.invoke(listOf(CommitTextEditOp(char.toString(), 1))) |
| } |
| } |
| } |
| } |