devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/ui/text_box/ui.text_editor.label.js)
* Version: 23.2.6
* Build date: Wed May 01 2024
*
* Copyright (c) 2012 - 2024 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import $ from "../../core/renderer";
import Guid from "../../core/guid";
import {
name as click
} from "../../events/click";
import eventsEngine from "../../events/core/events_engine";
import {
addNamespace
} from "../../events/utils/index";
import {
start as hoverStart
} from "../../events/hover";
import {
active
} from "../../events/core/emitter.feedback";
import {
getWindow
} from "../../core/utils/window";
import {
getWidth
} from "../../core/utils/size";
var TEXTEDITOR_LABEL_CLASS = "dx-texteditor-label";
var TEXTEDITOR_WITH_LABEL_CLASS = "dx-texteditor-with-label";
var TEXTEDITOR_LABEL_OUTSIDE_CLASS = "dx-texteditor-label-outside";
var TEXTEDITOR_WITH_FLOATING_LABEL_CLASS = "dx-texteditor-with-floating-label";
var TEXTEDITOR_WITH_BEFORE_BUTTONS_CLASS = "dx-texteditor-with-before-buttons";
var LABEL_BEFORE_CLASS = "dx-label-before";
var LABEL_CLASS = "dx-label";
var LABEL_AFTER_CLASS = "dx-label-after";
class TextEditorLabel {
constructor(props) {
this.NAME = "dxLabel";
this._props = props;
this._id = "".concat(TEXTEDITOR_LABEL_CLASS, "-").concat(new Guid);
this._render();
this._toggleMarkupVisibility()
}
_isVisible() {
return !!this._props.text && "hidden" !== this._props.mode
}
_render() {
this._$before = $("<div>").addClass(LABEL_BEFORE_CLASS);
this._$labelSpan = $("<span>");
this._$label = $("<div>").addClass(LABEL_CLASS).append(this._$labelSpan);
this._$after = $("<div>").addClass(LABEL_AFTER_CLASS);
this._$root = $("<div>").addClass(TEXTEDITOR_LABEL_CLASS).attr("id", this._id).append(this._$before).append(this._$label).append(this._$after);
this._updateMark();
this._updateText();
this._updateBeforeWidth();
this._updateMaxWidth()
}
_toggleMarkupVisibility() {
var visible = this._isVisible();
this._updateEditorBeforeButtonsClass(visible);
this._updateEditorLabelClass(visible);
visible ? this._$root.appendTo(this._props.$editor) : this._$root.detach();
this._attachEvents()
}
_attachEvents() {
var clickEventName = addNamespace(click, this.NAME);
var hoverStartEventName = addNamespace(hoverStart, this.NAME);
var activeEventName = addNamespace(active, this.NAME);
eventsEngine.off(this._$labelSpan, clickEventName);
eventsEngine.off(this._$labelSpan, hoverStartEventName);
eventsEngine.off(this._$labelSpan, activeEventName);
if (this._isVisible() && this._isOutsideMode()) {
eventsEngine.on(this._$labelSpan, clickEventName, e => {
var selectedText = getWindow().getSelection().toString();
if ("" === selectedText) {
this._props.onClickHandler();
e.preventDefault()
}
});
eventsEngine.on(this._$labelSpan, hoverStartEventName, e => {
this._props.onHoverHandler(e)
});
eventsEngine.on(this._$labelSpan, activeEventName, e => {
this._props.onActiveHandler(e)
})
}
}
_updateEditorLabelClass(visible) {
this._props.$editor.removeClass(TEXTEDITOR_WITH_FLOATING_LABEL_CLASS).removeClass(TEXTEDITOR_LABEL_OUTSIDE_CLASS).removeClass(TEXTEDITOR_WITH_LABEL_CLASS);
if (visible) {
var labelClass = "floating" === this._props.mode ? TEXTEDITOR_WITH_FLOATING_LABEL_CLASS : TEXTEDITOR_WITH_LABEL_CLASS;
this._props.$editor.addClass(labelClass);
if (this._isOutsideMode()) {
this._props.$editor.addClass(TEXTEDITOR_LABEL_OUTSIDE_CLASS)
}
}
}
_isOutsideMode() {
return "outside" === this._props.mode
}
_updateEditorBeforeButtonsClass() {
var visible = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : this._isVisible();
this._props.$editor.removeClass(TEXTEDITOR_WITH_BEFORE_BUTTONS_CLASS);
if (visible) {
var beforeButtonsClass = this._props.containsButtonsBefore ? TEXTEDITOR_WITH_BEFORE_BUTTONS_CLASS : "";
this._props.$editor.addClass(beforeButtonsClass)
}
}
_updateMark() {
this._$labelSpan.attr("data-mark", this._props.mark)
}
_updateText() {
this._$labelSpan.text(this._props.text)
}
_updateBeforeWidth() {
if (this._isVisible()) {
var _this$_props$beforeWi;
var width = null !== (_this$_props$beforeWi = this._props.beforeWidth) && void 0 !== _this$_props$beforeWi ? _this$_props$beforeWi : this._props.getBeforeWidth();
this._$before.css({
width: width
});
this._updateLabelTransform()
}
}
_updateLabelTransform() {
var offset = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : 0;
this._$labelSpan.css("transform", "");
if (this._isVisible() && this._isOutsideMode()) {
var sign = this._props.rtlEnabled ? 1 : -1;
var labelTranslateX = sign * (getWidth(this._$before) + offset);
this._$labelSpan.css("transform", "translateX(".concat(labelTranslateX, "px)"))
}
}
_updateMaxWidth() {
if (this._isVisible() && !this._isOutsideMode()) {
var _this$_props$containe;
var maxWidth = null !== (_this$_props$containe = this._props.containerWidth) && void 0 !== _this$_props$containe ? _this$_props$containe : this._props.getContainerWidth();
this._$label.css({
maxWidth: maxWidth
})
}
}
$element() {
return this._$root
}
isVisible() {
return this._isVisible()
}
getId() {
if (this._isVisible()) {
return this._id
}
}
updateMode(mode) {
this._props.mode = mode;
this._toggleMarkupVisibility();
this._updateBeforeWidth();
this._updateMaxWidth()
}
updateText(text) {
this._props.text = text;
this._updateText();
this._toggleMarkupVisibility();
this._updateBeforeWidth();
this._updateMaxWidth()
}
updateMark(mark) {
this._props.mark = mark;
this._updateMark()
}
updateContainsButtonsBefore(containsButtonsBefore) {
this._props.containsButtonsBefore = containsButtonsBefore;
this._updateEditorBeforeButtonsClass()
}
updateBeforeWidth(beforeWidth) {
this._props.beforeWidth = beforeWidth;
this._updateBeforeWidth()
}
updateMaxWidth(containerWidth) {
this._props.containerWidth = containerWidth;
this._updateMaxWidth()
}
}
export {
TextEditorLabel
};