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rui/editView.go

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package rui
import (
"fmt"
"strconv"
"strings"
)
const (
// EditTextChangedEvent is the constant for the "edit-text-changed" property tag.
EditTextChangedEvent = "edit-text-changed"
// EditViewType is the constant for the "edit-view-type" property tag.
EditViewType = "edit-view-type"
// EditViewPattern is the constant for the "edit-view-pattern" property tag.
EditViewPattern = "edit-view-pattern"
// Spellcheck is the constant for the "spellcheck" property tag.
Spellcheck = "spellcheck"
)
const (
// SingleLineText - single-line text type of EditView
SingleLineText = 0
// PasswordText - password type of EditView
PasswordText = 1
// EmailText - e-mail type of EditView. Allows to enter one email
EmailText = 2
// EmailsText - e-mail type of EditView. Allows to enter multiple emails separeted by comma
EmailsText = 3
// URLText - url type of EditView. Allows to enter one url
URLText = 4
// PhoneText - telephone type of EditView. Allows to enter one phone number
PhoneText = 5
// MultiLineText - multi-line text type of EditView
MultiLineText = 6
)
// EditView - grid-container of View
type EditView interface {
View
AppendText(text string)
}
type editViewData struct {
viewData
textChangeListeners []func(EditView, string)
}
// NewEditView create new EditView object and return it
func NewEditView(session Session, params Params) EditView {
view := new(editViewData)
view.Init(session)
setInitParams(view, params)
return view
}
func newEditView(session Session) View {
return NewEditView(session, nil)
}
func (edit *editViewData) Init(session Session) {
edit.viewData.Init(session)
edit.textChangeListeners = []func(EditView, string){}
edit.tag = "EditView"
}
func (edit *editViewData) Focusable() bool {
return true
}
func (edit *editViewData) normalizeTag(tag string) string {
tag = strings.ToLower(tag)
switch tag {
case Type, "edit-type":
return EditViewType
case Pattern, "edit-pattern":
return EditViewPattern
case "maxlength", "maxlen":
return MaxLength
}
return tag
}
func (edit *editViewData) Remove(tag string) {
edit.remove(edit.normalizeTag(tag))
}
func (edit *editViewData) remove(tag string) {
_, exists := edit.properties[tag]
switch tag {
case Hint:
if exists {
delete(edit.properties, Hint)
if edit.created {
removeProperty(edit.htmlID(), "placeholder", edit.session)
}
edit.propertyChangedEvent(tag)
}
case MaxLength:
if exists {
delete(edit.properties, MaxLength)
if edit.created {
removeProperty(edit.htmlID(), "maxlength", edit.session)
}
edit.propertyChangedEvent(tag)
}
case ReadOnly, Spellcheck:
if exists {
delete(edit.properties, tag)
if edit.created {
updateBoolProperty(edit.htmlID(), tag, false, edit.session)
}
edit.propertyChangedEvent(tag)
}
case EditTextChangedEvent:
if len(edit.textChangeListeners) > 0 {
edit.textChangeListeners = []func(EditView, string){}
edit.propertyChangedEvent(tag)
}
case Text:
if exists {
oldText := GetText(edit, "")
delete(edit.properties, tag)
if oldText != "" {
edit.textChanged("")
if edit.created {
edit.session.runScript(fmt.Sprintf(`setInputValue('%s', '%s')`, edit.htmlID(), ""))
}
}
}
case EditViewPattern:
if exists {
oldText := GetEditViewPattern(edit, "")
delete(edit.properties, tag)
if oldText != "" {
if edit.created {
removeProperty(edit.htmlID(), Pattern, edit.session)
}
edit.propertyChangedEvent(tag)
}
}
case EditViewType:
if exists {
oldType := GetEditViewType(edit, "")
delete(edit.properties, tag)
if oldType != 0 {
if edit.created {
updateInnerHTML(edit.parentHTMLID(), edit.session)
}
edit.propertyChangedEvent(tag)
}
}
case Wrap:
if exists {
oldWrap := IsEditViewWrap(edit, "")
delete(edit.properties, tag)
if GetEditViewType(edit, "") == MultiLineText {
if wrap := IsEditViewWrap(edit, ""); wrap != oldWrap {
if edit.created {
if wrap {
updateProperty(edit.htmlID(), "wrap", "soft", edit.session)
} else {
updateProperty(edit.htmlID(), "wrap", "off", edit.session)
}
}
edit.propertyChangedEvent(tag)
}
}
}
default:
edit.viewData.remove(tag)
return
}
}
func (edit *editViewData) Set(tag string, value interface{}) bool {
return edit.set(edit.normalizeTag(tag), value)
}
func (edit *editViewData) set(tag string, value interface{}) bool {
if value == nil {
edit.remove(tag)
return true
}
switch tag {
case Text:
oldText := GetText(edit, "")
if text, ok := value.(string); ok {
edit.properties[Text] = text
if text = GetText(edit, ""); oldText != text {
edit.textChanged(text)
if edit.created {
if GetEditViewType(edit, "") == MultiLineText {
updateInnerHTML(edit.htmlID(), edit.Session())
} else {
text = strings.ReplaceAll(text, `"`, `\"`)
text = strings.ReplaceAll(text, `'`, `\'`)
text = strings.ReplaceAll(text, "\n", `\n`)
text = strings.ReplaceAll(text, "\r", `\r`)
edit.session.runScript(fmt.Sprintf(`setInputValue('%s', '%s')`, edit.htmlID(), text))
}
}
}
return true
}
return false
case Hint:
oldText := GetHint(edit, "")
if text, ok := value.(string); ok {
edit.properties[Hint] = text
if text = GetHint(edit, ""); oldText != text {
if edit.created {
if text != "" {
updateProperty(edit.htmlID(), "placeholder", text, edit.session)
} else {
removeProperty(edit.htmlID(), "placeholder", edit.session)
}
}
edit.propertyChangedEvent(tag)
}
return true
}
return false
case MaxLength:
oldMaxLength := GetMaxLength(edit, "")
if edit.setIntProperty(MaxLength, value) {
if maxLength := GetMaxLength(edit, ""); maxLength != oldMaxLength {
if edit.created {
if maxLength > 0 {
updateProperty(edit.htmlID(), "maxlength", strconv.Itoa(maxLength), edit.session)
} else {
removeProperty(edit.htmlID(), "maxlength", edit.session)
}
}
edit.propertyChangedEvent(tag)
}
return true
}
return false
case ReadOnly:
if edit.setBoolProperty(ReadOnly, value) {
if edit.created {
if IsReadOnly(edit, "") {
updateProperty(edit.htmlID(), ReadOnly, "", edit.session)
} else {
removeProperty(edit.htmlID(), ReadOnly, edit.session)
}
}
edit.propertyChangedEvent(tag)
return true
}
return false
case Spellcheck:
if edit.setBoolProperty(Spellcheck, value) {
if edit.created {
updateBoolProperty(edit.htmlID(), Spellcheck, IsSpellcheck(edit, ""), edit.session)
}
edit.propertyChangedEvent(tag)
return true
}
return false
case EditViewPattern:
oldText := GetEditViewPattern(edit, "")
if text, ok := value.(string); ok {
edit.properties[Pattern] = text
if text = GetEditViewPattern(edit, ""); oldText != text {
if edit.created {
if text != "" {
updateProperty(edit.htmlID(), Pattern, text, edit.session)
} else {
removeProperty(edit.htmlID(), Pattern, edit.session)
}
}
edit.propertyChangedEvent(tag)
}
return true
}
return false
case EditViewType:
oldType := GetEditViewType(edit, "")
if edit.setEnumProperty(EditViewType, value, enumProperties[EditViewType].values) {
if GetEditViewType(edit, "") != oldType {
if edit.created {
updateInnerHTML(edit.parentHTMLID(), edit.session)
}
edit.propertyChangedEvent(tag)
}
return true
}
return false
case Wrap:
oldWrap := IsEditViewWrap(edit, "")
if edit.setBoolProperty(Wrap, value) {
if GetEditViewType(edit, "") == MultiLineText {
if wrap := IsEditViewWrap(edit, ""); wrap != oldWrap {
if edit.created {
if wrap {
updateProperty(edit.htmlID(), "wrap", "soft", edit.session)
} else {
updateProperty(edit.htmlID(), "wrap", "off", edit.session)
}
}
edit.propertyChangedEvent(tag)
}
}
return true
}
return false
case EditTextChangedEvent:
ok := edit.setChangeListeners(value)
if !ok {
notCompatibleType(tag, value)
}
edit.propertyChangedEvent(tag)
return ok
}
return edit.viewData.set(tag, value)
}
func (edit *editViewData) setChangeListeners(value interface{}) bool {
switch value := value.(type) {
case func(EditView, string):
edit.textChangeListeners = []func(EditView, string){value}
case func(string):
fn := func(view EditView, text string) {
value(text)
}
edit.textChangeListeners = []func(EditView, string){fn}
case []func(EditView, string):
edit.textChangeListeners = value
case []func(string):
listeners := make([]func(EditView, string), len(value))
for i, v := range value {
if v == nil {
return false
}
listeners[i] = func(view EditView, text string) {
v(text)
}
}
edit.textChangeListeners = listeners
case []interface{}:
listeners := make([]func(EditView, string), len(value))
for i, v := range value {
if v == nil {
return false
}
switch v := v.(type) {
case func(EditView, string):
listeners[i] = v
case func(string):
listeners[i] = func(view EditView, text string) {
v(text)
}
default:
return false
}
}
edit.textChangeListeners = listeners
default:
return false
}
return true
}
func (edit *editViewData) Get(tag string) interface{} {
return edit.get(edit.normalizeTag(tag))
}
func (edit *editViewData) get(tag string) interface{} {
return edit.viewData.get(tag)
}
func (edit *editViewData) AppendText(text string) {
if GetEditViewType(edit, "") == MultiLineText {
if value := edit.getRaw(Text); value != nil {
if textValue, ok := value.(string); ok {
textValue += text
edit.properties[Text] = textValue
text := strings.ReplaceAll(text, `"`, `\"`)
text = strings.ReplaceAll(text, `'`, `\'`)
text = strings.ReplaceAll(text, "\n", `\n`)
text = strings.ReplaceAll(text, "\r", `\r`)
edit.session.runScript(`appendToInnerHTML("` + edit.htmlID() + `", "` + text + `")`)
edit.textChanged(textValue)
return
}
}
edit.set(Text, text)
} else {
edit.set(Text, GetText(edit, "")+text)
}
}
func (edit *editViewData) textChanged(newText string) {
for _, listener := range edit.textChangeListeners {
listener(edit, newText)
}
edit.propertyChangedEvent(Text)
}
func (edit *editViewData) htmlTag() string {
if GetEditViewType(edit, "") == MultiLineText {
return "textarea"
}
return "input"
}
func (edit *editViewData) htmlProperties(self View, buffer *strings.Builder) {
edit.viewData.htmlProperties(self, buffer)
writeSpellcheck := func() {
if spellcheck := IsSpellcheck(edit, ""); spellcheck {
buffer.WriteString(` spellcheck="true"`)
} else {
buffer.WriteString(` spellcheck="false"`)
}
}
editType := GetEditViewType(edit, "")
switch editType {
case SingleLineText:
buffer.WriteString(` type="text" inputmode="text"`)
writeSpellcheck()
case PasswordText:
buffer.WriteString(` type="password" inputmode="text"`)
case EmailText:
buffer.WriteString(` type="email" inputmode="email"`)
case EmailsText:
buffer.WriteString(` type="email" inputmode="email" multiple`)
case URLText:
buffer.WriteString(` type="url" inputmode="url"`)
case PhoneText:
buffer.WriteString(` type="tel" inputmode="tel"`)
case MultiLineText:
if IsEditViewWrap(edit, "") {
buffer.WriteString(` wrap="soft"`)
} else {
buffer.WriteString(` wrap="off"`)
}
writeSpellcheck()
}
if IsReadOnly(edit, "") {
buffer.WriteString(` readonly`)
}
if maxLength := GetMaxLength(edit, ""); maxLength > 0 {
buffer.WriteString(` maxlength="`)
buffer.WriteString(strconv.Itoa(maxLength))
buffer.WriteByte('"')
}
if hint := GetHint(edit, ""); hint != "" {
buffer.WriteString(` placeholder="`)
buffer.WriteString(hint)
buffer.WriteByte('"')
}
buffer.WriteString(` oninput="editViewInputEvent(this)"`)
if pattern := GetEditViewPattern(edit, ""); pattern != "" {
buffer.WriteString(` pattern="`)
buffer.WriteString(pattern)
buffer.WriteByte('"')
}
if editType != MultiLineText {
if text := GetText(edit, ""); text != "" {
buffer.WriteString(` value="`)
buffer.WriteString(text)
buffer.WriteByte('"')
}
}
}
func (edit *editViewData) htmlDisabledProperties(self View, buffer *strings.Builder) {
if IsDisabled(self, "") {
buffer.WriteString(` disabled`)
}
edit.viewData.htmlDisabledProperties(self, buffer)
}
func (edit *editViewData) htmlSubviews(self View, buffer *strings.Builder) {
if GetEditViewType(edit, "") == MultiLineText {
text := strings.ReplaceAll(GetText(edit, ""), `"`, `\"`)
text = strings.ReplaceAll(text, "\n", `\n`)
text = strings.ReplaceAll(text, "\r", `\r`)
buffer.WriteString(strings.ReplaceAll(text, `'`, `\'`))
}
}
func (edit *editViewData) handleCommand(self View, command string, data DataObject) bool {
switch command {
case "textChanged":
oldText := GetText(edit, "")
if text, ok := data.PropertyValue("text"); ok {
edit.properties[Text] = text
if text := GetText(edit, ""); text != oldText {
edit.textChanged(text)
}
}
return true
}
return edit.viewData.handleCommand(self, command, data)
}
// GetText returns a text of the subview.
// If the second argument (subviewID) is "" then a text of the first argument (view) is returned.
func GetText(view View, subviewID string) string {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if value := view.getRaw(Text); value != nil {
if text, ok := value.(string); ok {
return text
}
}
}
return ""
}
// GetHint returns a hint text of the subview.
// If the second argument (subviewID) is "" then a text of the first argument (view) is returned.
func GetHint(view View, subviewID string) string {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if text, ok := stringProperty(view, Hint, view.Session()); ok {
return text
}
if text, ok := valueFromStyle(view, Hint); ok {
if text, ok = view.Session().resolveConstants(text); ok {
return text
}
}
}
return ""
}
// GetMaxLength returns a maximal lenght of EditView. If a maximal lenght is not limited then 0 is returned
// If the second argument (subviewID) is "" then a value of the first argument (view) is returned.
func GetMaxLength(view View, subviewID string) int {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if result, ok := intStyledProperty(view, MaxLength, 0); ok {
return result
}
}
return 0
}
// IsReadOnly returns the true if a EditView works in read only mode.
// If the second argument (subviewID) is "" then a value of the first argument (view) is returned.
func IsReadOnly(view View, subviewID string) bool {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if result, ok := boolStyledProperty(view, ReadOnly); ok {
return result
}
}
return false
}
// IsSpellcheck returns a value of the Spellcheck property of EditView.
// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
func IsSpellcheck(view View, subviewID string) bool {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if spellcheck, ok := boolStyledProperty(view, Spellcheck); ok {
return spellcheck
}
}
return false
}
// GetTextChangedListeners returns the TextChangedListener list of an EditView or MultiLineEditView subview.
// If there are no listeners then the empty list is returned
// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
func GetTextChangedListeners(view View, subviewID string) []func(EditView, string) {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if value := view.Get(EditTextChangedEvent); value != nil {
if result, ok := value.([]func(EditView, string)); ok {
return result
}
}
}
return []func(EditView, string){}
}
// GetEditViewType returns a value of the Type property of EditView.
// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
func GetEditViewType(view View, subviewID string) int {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view == nil {
return SingleLineText
}
t, _ := enumStyledProperty(view, EditViewType, SingleLineText)
return t
}
// GetEditViewPattern returns a value of the Pattern property of EditView.
// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
func GetEditViewPattern(view View, subviewID string) string {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if pattern, ok := stringProperty(view, EditViewPattern, view.Session()); ok {
return pattern
}
if pattern, ok := valueFromStyle(view, EditViewPattern); ok {
if pattern, ok = view.Session().resolveConstants(pattern); ok {
return pattern
}
}
}
return ""
}
// IsEditViewWrap returns a value of the Wrap property of MultiLineEditView.
// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
func IsEditViewWrap(view View, subviewID string) bool {
if subviewID != "" {
view = ViewByID(view, subviewID)
}
if view != nil {
if wrap, ok := boolStyledProperty(view, Wrap); ok {
return wrap
}
}
return false
}
// AppendEditText appends the text to the EditView content.
// If the second argument (subviewID) is "" then a value from the first argument (view) is returned.
func AppendEditText(view View, subviewID string, text string) {
if subviewID != "" {
if edit := EditViewByID(view, subviewID); edit != nil {
edit.AppendText(text)
return
}
}
if edit, ok := view.(EditView); ok {
edit.AppendText(text)
}
}