2021-09-07 17:36:50 +03:00
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package rui
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import (
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"fmt"
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"strings"
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)
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// CheckboxChangedEvent is the constant for "checkbox-event" property tag.
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// The "checkbox-event" event occurs when the checkbox becomes checked/unchecked.
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// The main listener format: func(Checkbox, bool), where the second argument is the checkbox state.
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const CheckboxChangedEvent = "checkbox-event"
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// Checkbox - checkbox view
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type Checkbox interface {
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ViewsContainer
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}
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type checkboxData struct {
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viewsContainerData
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checkedListeners []func(Checkbox, bool)
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}
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// NewCheckbox create new Checkbox object and return it
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func NewCheckbox(session Session, params Params) Checkbox {
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view := new(checkboxData)
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2022-09-01 11:04:50 +03:00
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view.init(session)
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2021-09-07 17:36:50 +03:00
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setInitParams(view, Params{
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ClickEvent: checkboxClickListener,
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KeyDownEvent: checkboxKeyListener,
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})
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setInitParams(view, params)
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return view
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}
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func newCheckbox(session Session) View {
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return NewCheckbox(session, nil)
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}
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2022-09-01 11:04:50 +03:00
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func (button *checkboxData) init(session Session) {
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button.viewsContainerData.init(session)
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2021-09-07 17:36:50 +03:00
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button.tag = "Checkbox"
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button.systemClass = "ruiGridLayout ruiCheckbox"
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button.checkedListeners = []func(Checkbox, bool){}
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}
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2022-05-22 12:54:02 +03:00
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func (button *checkboxData) String() string {
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return getViewString(button)
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}
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2021-09-07 17:36:50 +03:00
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func (button *checkboxData) Focusable() bool {
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return true
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}
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2022-07-26 18:36:00 +03:00
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func (button *checkboxData) Get(tag string) any {
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2021-09-07 17:36:50 +03:00
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switch strings.ToLower(tag) {
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case CheckboxChangedEvent:
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return button.checkedListeners
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}
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return button.viewsContainerData.Get(tag)
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}
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2022-07-26 18:36:00 +03:00
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func (button *checkboxData) Set(tag string, value any) bool {
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2021-11-20 11:15:28 +03:00
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return button.set(tag, value)
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}
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2022-07-26 18:36:00 +03:00
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func (button *checkboxData) set(tag string, value any) bool {
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2021-11-20 11:15:28 +03:00
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switch tag {
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2021-09-07 17:36:50 +03:00
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case CheckboxChangedEvent:
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2021-11-20 11:15:28 +03:00
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if !button.setChangedListener(value) {
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2021-09-07 17:36:50 +03:00
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notCompatibleType(tag, value)
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2021-11-20 11:15:28 +03:00
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return false
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2021-09-07 17:36:50 +03:00
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}
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case Checked:
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oldChecked := button.checked()
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if !button.setBoolProperty(Checked, value) {
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return false
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}
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if button.created {
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checked := button.checked()
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if checked != oldChecked {
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button.changedCheckboxState(checked)
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}
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}
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case CheckboxHorizontalAlign, CheckboxVerticalAlign:
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2021-11-20 11:15:28 +03:00
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if !button.setEnumProperty(tag, value, enumProperties[tag].values) {
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return false
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}
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if button.created {
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htmlID := button.htmlID()
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updateCSSStyle(htmlID, button.session)
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updateInnerHTML(htmlID, button.session)
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2021-09-07 17:36:50 +03:00
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}
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case VerticalAlign:
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2021-11-20 11:15:28 +03:00
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if !button.setEnumProperty(tag, value, enumProperties[tag].values) {
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return false
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}
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if button.created {
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updateCSSProperty(button.htmlID()+"content", "align-items", button.cssVerticalAlign(), button.session)
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2021-09-07 17:36:50 +03:00
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}
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case HorizontalAlign:
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2021-11-20 11:15:28 +03:00
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if !button.setEnumProperty(tag, value, enumProperties[tag].values) {
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return false
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}
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if button.created {
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updateCSSProperty(button.htmlID()+"content", "justify-items", button.cssHorizontalAlign(), button.session)
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2021-09-07 17:36:50 +03:00
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}
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case CellVerticalAlign, CellHorizontalAlign, CellWidth, CellHeight:
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return false
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2021-11-20 11:15:28 +03:00
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default:
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return button.viewsContainerData.set(tag, value)
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2021-09-07 17:36:50 +03:00
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}
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2021-11-20 11:15:28 +03:00
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button.propertyChangedEvent(tag)
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return true
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2021-09-07 17:36:50 +03:00
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}
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func (button *checkboxData) Remove(tag string) {
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2021-11-20 11:15:28 +03:00
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button.remove(strings.ToLower(tag))
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}
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func (button *checkboxData) remove(tag string) {
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switch tag {
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case ClickEvent:
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if !button.viewsContainerData.set(ClickEvent, checkboxClickListener) {
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delete(button.properties, tag)
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}
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case KeyDownEvent:
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if !button.viewsContainerData.set(KeyDownEvent, checkboxKeyListener) {
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delete(button.properties, tag)
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}
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2021-09-07 17:36:50 +03:00
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case CheckboxChangedEvent:
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if len(button.checkedListeners) > 0 {
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button.checkedListeners = []func(Checkbox, bool){}
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}
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case Checked:
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oldChecked := button.checked()
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delete(button.properties, tag)
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2021-11-20 11:15:28 +03:00
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if button.created && oldChecked {
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2021-09-07 17:36:50 +03:00
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button.changedCheckboxState(false)
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}
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case CheckboxHorizontalAlign, CheckboxVerticalAlign:
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delete(button.properties, tag)
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2021-11-20 11:15:28 +03:00
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if button.created {
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htmlID := button.htmlID()
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updateCSSStyle(htmlID, button.session)
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updateInnerHTML(htmlID, button.session)
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}
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2021-09-07 17:36:50 +03:00
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case VerticalAlign:
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delete(button.properties, tag)
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2021-11-20 11:15:28 +03:00
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if button.created {
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updateCSSProperty(button.htmlID()+"content", "align-items", button.cssVerticalAlign(), button.session)
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}
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2021-09-07 17:36:50 +03:00
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case HorizontalAlign:
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delete(button.properties, tag)
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2021-11-20 11:15:28 +03:00
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if button.created {
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updateCSSProperty(button.htmlID()+"content", "justify-items", button.cssHorizontalAlign(), button.session)
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}
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2021-09-07 17:36:50 +03:00
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default:
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2021-11-20 11:15:28 +03:00
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button.viewsContainerData.remove(tag)
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return
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2021-09-07 17:36:50 +03:00
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}
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2021-11-20 11:15:28 +03:00
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button.propertyChangedEvent(tag)
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2021-09-07 17:36:50 +03:00
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}
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func (button *checkboxData) checked() bool {
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checked, _ := boolProperty(button, Checked, button.Session())
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return checked
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}
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func (button *checkboxData) changedCheckboxState(state bool) {
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for _, listener := range button.checkedListeners {
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listener(button, state)
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}
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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button.htmlCheckbox(buffer, state)
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button.Session().runScript(fmt.Sprintf(`updateInnerHTML('%v', '%v');`, button.htmlID()+"checkbox", buffer.String()))
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}
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func checkboxClickListener(view View) {
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2022-08-31 22:17:46 +03:00
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view.Set(Checked, !IsCheckboxChecked(view))
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Added some properties and functions
* Added "resize", "grid-auto-flow", "caret-color", and "backdrop-filter" properties
* Added BlurView, BlurViewByID, GetResize, GetGridAutoFlow, GetCaretColor, GetBackdropFilter functions
* The "warp" property for ListView and ListLayout renamed to "list-warp"
* The "warp" property for EditView renamed to "edit-warp"
* Added CertFile and KeyFile optional fields to the AppParams struct.If they are set, then an https connection is created, otherwise http.
2022-06-07 13:07:10 +03:00
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BlurView(view)
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2021-09-07 17:36:50 +03:00
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}
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func checkboxKeyListener(view View, event KeyEvent) {
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switch event.Code {
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case "Enter", "Space":
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2022-08-31 22:17:46 +03:00
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view.Set(Checked, !IsCheckboxChecked(view))
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2021-09-07 17:36:50 +03:00
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}
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}
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2022-07-26 18:36:00 +03:00
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func (button *checkboxData) setChangedListener(value any) bool {
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2022-08-24 15:00:25 +03:00
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listeners, ok := valueToEventListeners[Checkbox, bool](value)
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if !ok {
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return false
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} else if listeners == nil {
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listeners = []func(Checkbox, bool){}
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2021-09-07 17:36:50 +03:00
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}
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2022-08-24 15:00:25 +03:00
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button.checkedListeners = listeners
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2021-09-07 17:36:50 +03:00
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return true
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}
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func (button *checkboxData) cssStyle(self View, builder cssBuilder) {
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session := button.Session()
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2022-08-31 22:17:46 +03:00
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vAlign := GetCheckboxVerticalAlign(button)
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hAlign := GetCheckboxHorizontalAlign(button)
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2021-09-07 17:36:50 +03:00
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switch hAlign {
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case CenterAlign:
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if vAlign == BottomAlign {
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builder.add("grid-template-rows", "1fr auto")
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} else {
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builder.add("grid-template-rows", "auto 1fr")
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}
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case RightAlign:
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builder.add("grid-template-columns", "1fr auto")
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default:
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builder.add("grid-template-columns", "auto 1fr")
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}
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if gap, ok := sizeConstant(session, "ruiCheckboxGap"); ok && gap.Type != Auto && gap.Value > 0 {
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builder.add("gap", gap.cssString("0"))
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}
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builder.add("align-items", "stretch")
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builder.add("justify-items", "stretch")
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button.viewsContainerData.cssStyle(self, builder)
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}
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func (button *checkboxData) htmlCheckbox(buffer *strings.Builder, checked bool) (int, int) {
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vAlign := GetCheckboxVerticalAlign(button)
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hAlign := GetCheckboxHorizontalAlign(button)
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buffer.WriteString(`<div id="`)
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buffer.WriteString(button.htmlID())
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buffer.WriteString(`checkbox" style="display: grid;`)
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if hAlign == CenterAlign {
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buffer.WriteString(" justify-items: center; grid-column-start: 1; grid-column-end: 2;")
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if vAlign == BottomAlign {
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buffer.WriteString(" grid-row-start: 2; grid-row-end: 3;")
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} else {
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buffer.WriteString(" grid-row-start: 1; grid-row-end: 2;")
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}
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} else {
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if hAlign == RightAlign {
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buffer.WriteString(" grid-column-start: 2; grid-column-end: 3;")
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} else {
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buffer.WriteString(" grid-column-start: 1; grid-column-end: 2;")
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}
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buffer.WriteString(" grid-row-start: 1; grid-row-end: 2;")
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switch vAlign {
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case BottomAlign:
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buffer.WriteString(" align-items: end;")
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case CenterAlign:
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buffer.WriteString(" align-items: center;")
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default:
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buffer.WriteString(" align-items: start;")
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}
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}
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buffer.WriteString(`">`)
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if checked {
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buffer.WriteString(button.Session().checkboxOnImage())
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} else {
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buffer.WriteString(button.Session().checkboxOffImage())
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}
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buffer.WriteString(`</div>`)
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return vAlign, hAlign
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}
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func (button *checkboxData) htmlSubviews(self View, buffer *strings.Builder) {
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2022-08-31 22:17:46 +03:00
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vCheckboxAlign, hCheckboxAlign := button.htmlCheckbox(buffer, IsCheckboxChecked(button))
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2021-09-07 17:36:50 +03:00
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buffer.WriteString(`<div id="`)
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buffer.WriteString(button.htmlID())
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buffer.WriteString(`content" style="display: grid;`)
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if hCheckboxAlign == LeftAlign {
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buffer.WriteString(" grid-column-start: 2; grid-column-end: 3;")
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} else {
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buffer.WriteString(" grid-column-start: 1; grid-column-end: 2;")
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}
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if hCheckboxAlign == CenterAlign && vCheckboxAlign != BottomAlign {
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buffer.WriteString(" grid-row-start: 2; grid-row-end: 3;")
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} else {
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buffer.WriteString(" grid-row-start: 1; grid-row-end: 2;")
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}
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buffer.WriteString(" align-items: ")
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buffer.WriteString(button.cssVerticalAlign())
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buffer.WriteRune(';')
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buffer.WriteString(" justify-items: ")
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buffer.WriteString(button.cssHorizontalAlign())
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buffer.WriteRune(';')
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buffer.WriteString(`">`)
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button.viewsContainerData.htmlSubviews(self, buffer)
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buffer.WriteString(`</div>`)
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}
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func (button *checkboxData) cssHorizontalAlign() string {
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2022-08-31 22:17:46 +03:00
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align := GetHorizontalAlign(button)
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2021-09-07 17:36:50 +03:00
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values := enumProperties[CellHorizontalAlign].cssValues
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if align >= 0 && align < len(values) {
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return values[align]
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}
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return values[0]
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}
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func (button *checkboxData) cssVerticalAlign() string {
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2022-08-31 22:17:46 +03:00
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align := GetVerticalAlign(button)
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2021-09-07 17:36:50 +03:00
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values := enumProperties[CellVerticalAlign].cssValues
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if align >= 0 && align < len(values) {
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return values[align]
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}
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return values[0]
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}
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// IsCheckboxChecked returns true if the Checkbox is checked, false otherwise.
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2022-08-31 22:17:46 +03:00
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// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
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func IsCheckboxChecked(view View, subviewID ...string) bool {
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return boolStyledProperty(view, subviewID, Checked, false)
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2021-09-07 17:36:50 +03:00
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}
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2022-07-28 12:41:50 +03:00
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// GetCheckboxVerticalAlign return the vertical align of a Checkbox subview: TopAlign (0), BottomAlign (1), CenterAlign (2)
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2022-08-31 22:17:46 +03:00
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// If the second argument (subviewID) is not specified or it is "" then a left position of the first argument (view) is returned
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func GetCheckboxVerticalAlign(view View, subviewID ...string) int {
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2022-08-16 11:40:42 +03:00
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return enumStyledProperty(view, subviewID, CheckboxVerticalAlign, LeftAlign, false)
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2022-07-28 12:41:50 +03:00
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}
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// GetCheckboxHorizontalAlign return the vertical align of a Checkbox subview: LeftAlign (0), RightAlign (1), CenterAlign (2)
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2022-08-31 22:17:46 +03:00
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// If the second argument (subviewID) is not specified or it is "" then a left position of the first argument (view) is returned
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func GetCheckboxHorizontalAlign(view View, subviewID ...string) int {
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2022-08-16 11:40:42 +03:00
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return enumStyledProperty(view, subviewID, CheckboxHorizontalAlign, TopAlign, false)
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2022-07-28 12:41:50 +03:00
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}
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