proton-bridge/internal/frontend/qml/Proton/TextArea.qml

371 lines
14 KiB
QML

// Copyright (c) 2022 Proton AG
//
// This file is part of Proton Mail Bridge.
//
// Proton Mail Bridge 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, either version 3 of the License, or
// (at your option) any later version.
//
// Proton Mail Bridge 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 Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
import QtQml 2.12
import QtQuick 2.12
import QtQuick.Controls 2.12
import QtQuick.Controls.impl 2.12
import QtQuick.Templates 2.12 as T
import QtQuick.Layouts 1.12
import "." as Proton
FocusScope {
id: root
property ColorScheme colorScheme
property alias background: control.background
property alias bottomInset: control.bottomInset
//property alias flickable: control.flickable
property alias focusReason: control.focusReason
property alias hoverEnabled: control.hoverEnabled
property alias hovered: control.hovered
property alias implicitBackgroundHeight: control.implicitBackgroundHeight
property alias implicitBackgroundWidth: control.implicitBackgroundWidth
property alias leftInset: control.leftInset
property alias palette: control.palette
property alias placeholderText: control.placeholderText
property alias placeholderTextColor: control.placeholderTextColor
property alias rightInset: control.rightInset
property alias topInset: control.topInset
property alias activeFocusOnPress: control.activeFocusOnPress
property alias baseUrl: control.baseUrl
property alias bottomPadding: control.bottomPadding
property alias canPaste: control.canPaste
property alias canRedo: control.canRedo
property alias canUndo: control.canUndo
property alias color: control.color
property alias contentHeight: control.contentHeight
property alias contentWidth: control.contentWidth
property alias cursorDelegate: control.cursorDelegate
property alias cursorPosition: control.cursorPosition
property alias cursorRectangle: control.cursorRectangle
property alias cursorVisible: control.cursorVisible
property alias effectiveHorizontalAlignment: control.effectiveHorizontalAlignment
property alias font: control.font
property alias horizontalAlignment: control.horizontalAlignment
property alias hoveredLink: control.hoveredLink
property alias inputMethodComposing: control.inputMethodComposing
property alias inputMethodHints: control.inputMethodHints
property alias leftPadding: control.leftPadding
property alias length: control.length
property alias lineCount: control.lineCount
property alias mouseSelectionMode: control.mouseSelectionMode
property alias overwriteMode: control.overwriteMode
property alias padding: control.padding
property alias persistentSelection: control.persistentSelection
property alias preeditText: control.preeditText
property alias readOnly: control.readOnly
property alias renderType: control.renderType
property alias rightPadding: control.rightPadding
property alias selectByKeyboard: control.selectByKeyboard
property alias selectByMouse: control.selectByMouse
property alias selectedText: control.selectedText
property alias selectedTextColor: control.selectedTextColor
property alias selectionColor: control.selectionColor
property alias selectionEnd: control.selectionEnd
property alias selectionStart: control.selectionStart
property alias tabStopDistance: control.tabStopDistance
property alias text: control.text
property alias textDocument: control.textDocument
property alias textFormat: control.textFormat
property alias textMargin: control.textMargin
property alias topPadding: control.topPadding
// We are using our own type of validators. It should be a function
// returning an error string in case of error and undefined if no error
property var validator
property alias verticalAlignment: control.verticalAlignment
property alias wrapMode: control.wrapMode
implicitWidth: children[0].implicitWidth
implicitHeight: children[0].implicitHeight
property alias label: label.text
property alias hint: hint.text
property string assistiveText
property string errorString
property bool error: false
signal editingFinished()
function append(text) { return control.append(text) }
function clear() { return control.clear() }
function copy() { return control.copy() }
function cut() { return control.cut() }
function deselect() { return control.deselect() }
function getFormattedText(start, end) { return control.getFormattedText(start, end) }
function getText(start, end) { return control.getText(start, end) }
function insert(position, text) { return control.insert(position, text) }
function isRightToLeft(start, end) { return control.isRightToLeft(start, end) }
function linkAt(x, y) { return control.linkAt(x, y) }
function moveCursorSelection(position, mode) { return control.moveCursorSelection(position, mode) }
function paste() { return control.paste() }
function positionAt(x, y) { return control.positionAt(x, y) }
function positionToRectangle(position) { return control.positionToRectangle(position) }
function redo() { return control.redo() }
function remove(start, end) { return control.remove(start, end) }
function select(start, end) { return control.select(start, end) }
function selectAll() { return control.selectAll() }
function selectWord() { return control.selectWord() }
function undo() { return control.undo() }
// Calculates the height of the component to make exactly lineNum visible in edit area
function heightForLinesVisible(lineNum) {
var totalHeight = 0
totalHeight += headerLayout.height
totalHeight += footerLayout.height
totalHeight += control.topPadding + control.bottomPadding
totalHeight += lineNum * fontMetrics.height
return totalHeight
}
FontMetrics {
id: fontMetrics
font: control.font
}
ColumnLayout {
anchors.fill: parent
spacing: 0
RowLayout {
id: headerLayout
Layout.fillWidth: true
spacing: 0
Proton.Label {
colorScheme: root.colorScheme
id: label
Layout.fillWidth: true
color: root.enabled ? root.colorScheme.text_norm : root.colorScheme.text_disabled
type: Proton.Label.LabelType.Body_semibold
}
Proton.Label {
colorScheme: root.colorScheme
id: hint
Layout.fillWidth: true
color: root.enabled ? root.colorScheme.text_weak : root.colorScheme.text_disabled
horizontalAlignment: Text.AlignRight
type: Proton.Label.LabelType.Caption
}
}
ScrollView {
id: controlView
Layout.fillHeight: true
Layout.fillWidth: true
clip: true
T.TextArea {
id: control
implicitWidth: Math.max(
contentWidth + leftPadding + rightPadding,
implicitBackgroundWidth + leftInset + rightInset,
placeholder.implicitWidth + leftPadding + rightPadding
)
implicitHeight: Math.max(
contentHeight + topPadding + bottomPadding,
implicitBackgroundHeight + topInset + bottomInset,
placeholder.implicitHeight + topPadding + bottomPadding
)
topPadding: 8
bottomPadding: 8
leftPadding: 12
rightPadding: 12
font.family: Style.font_family
font.weight: Style.fontWeight_400
font.pixelSize: Style.body_font_size
font.letterSpacing: Style.body_letter_spacing
color: control.enabled ? root.colorScheme.text_norm : root.colorScheme.text_disabled
placeholderTextColor: control.enabled ? root.colorScheme.text_hint : root.colorScheme.text_disabled
selectionColor: control.palette.highlight
selectedTextColor: control.palette.highlightedText
onEditingFinished: root.editingFinished()
wrapMode: TextInput.Wrap
// enforcing default focus here within component
focus: root.focus
KeyNavigation.priority: root.KeyNavigation.priority
KeyNavigation.backtab: root.KeyNavigation.backtab
KeyNavigation.tab: root.KeyNavigation.tab
KeyNavigation.up: root.KeyNavigation.up
KeyNavigation.down: root.KeyNavigation.down
KeyNavigation.left: root.KeyNavigation.left
KeyNavigation.right: root.KeyNavigation.right
selectByMouse: true
cursorDelegate: Rectangle {
id: cursor
width: 1
color: root.colorScheme.interaction_norm
visible: control.activeFocus && !control.readOnly && control.selectionStart === control.selectionEnd
Connections {
target: control
onCursorPositionChanged: {
// keep a moving cursor visible
cursor.opacity = 1
timer.restart()
}
}
Timer {
id: timer
running: control.activeFocus && !control.readOnly
repeat: true
interval: Qt.styleHints.cursorFlashTime / 2
onTriggered: cursor.opacity = !cursor.opacity ? 1 : 0
// force the cursor visible when gaining focus
onRunningChanged: cursor.opacity = 1
}
}
PlaceholderText {
id: placeholder
x: control.leftPadding
y: control.topPadding
width: control.width - (control.leftPadding + control.rightPadding)
height: control.height - (control.topPadding + control.bottomPadding)
text: control.placeholderText
font: control.font
color: control.placeholderTextColor
verticalAlignment: control.verticalAlignment
visible: !control.length && !control.preeditText && (!control.activeFocus || control.horizontalAlignment !== Qt.AlignHCenter)
elide: Text.ElideRight
renderType: control.renderType
}
background: Rectangle {
anchors.fill: parent
radius: Style.input_radius
visible: true
color: root.colorScheme.background_norm
border.color: {
if (!control.enabled) {
return root.colorScheme.field_disabled
}
if (control.activeFocus) {
return root.colorScheme.interaction_norm
}
if (root.error) {
return root.colorScheme.signal_danger
}
if (control.hovered) {
return root.colorScheme.field_hover
}
return root.colorScheme.field_norm
}
border.width: 1
}
}
}
RowLayout {
id: footerLayout
Layout.fillWidth: true
spacing: 0
ColorImage {
id: errorIcon
Layout.rightMargin: 4
visible: root.error && (assistiveText.text.length > 0)
source: "../icons/ic-exclamation-circle-filled.svg"
color: root.colorScheme.signal_danger
height: assistiveText.height
sourceSize.height: assistiveText.height
}
Proton.Label {
colorScheme: root.colorScheme
id: assistiveText
Layout.fillWidth: true
text: root.error ? root.errorString : root.assistiveText
color: {
if (!root.enabled) {
return root.colorScheme.text_disabled
}
if (root.error) {
return root.colorScheme.signal_danger
}
return root.colorScheme.text_weak
}
type: root.error ? Proton.Label.LabelType.Caption_semibold : Proton.Label.LabelType.Caption
}
}
}
property bool validateOnEditingFinished: true
onEditingFinished: {
if (!validateOnEditingFinished) {
return
}
validate()
}
function validate() {
if (validator === undefined) {
return
}
var error = validator(text)
if (error) {
root.error = true
root.errorString = error
} else {
root.error = false
root.errorString = ""
}
}
onTextChanged: {
root.error = false
root.errorString = ""
}
}