@blueprintjs/core
Version:
Core styles & components
265 lines (263 loc) • 12 kB
JavaScript
/*
* Copyright 2016 Palantir Technologies, Inc. All rights reserved.
* Licensed under the BSD-3 License as modified (the “License”); you may obtain a copy
* of the license at https://github.com/palantir/blueprint/blob/master/LICENSE
* and https://github.com/palantir/blueprint/blob/master/PATENTS
*/
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var classNames = require("classnames");
var PureRender = require("pure-render-decorator");
var React = require("react");
var abstractComponent_1 = require("../../common/abstractComponent");
var Classes = require("../../common/classes");
var Keys = require("../../common/keys");
var utils_1 = require("../../common/utils");
var compatibility_1 = require("../../compatibility");
var BUFFER_WIDTH_EDGE = 5;
var BUFFER_WIDTH_IE = 30;
var EditableText = (function (_super) {
tslib_1.__extends(EditableText, _super);
function EditableText(props, context) {
var _this = _super.call(this, props, context) || this;
_this.refHandlers = {
content: function (spanElement) {
_this.valueElement = spanElement;
},
input: function (input) {
if (input != null) {
input.focus();
var length_1 = input.value.length;
input.setSelectionRange(_this.props.selectAllOnFocus ? 0 : length_1, length_1);
}
},
};
_this.cancelEditing = function () {
var _a = _this.state, lastValue = _a.lastValue, value = _a.value;
_this.setState({ isEditing: false, value: lastValue });
if (value !== lastValue) {
utils_1.safeInvoke(_this.props.onChange, lastValue);
}
utils_1.safeInvoke(_this.props.onCancel, lastValue);
};
_this.toggleEditing = function () {
if (_this.state.isEditing) {
var value = _this.state.value;
_this.setState({ isEditing: false, lastValue: value });
utils_1.safeInvoke(_this.props.onConfirm, value);
}
else if (!_this.props.disabled) {
_this.setState({ isEditing: true });
}
};
_this.handleFocus = function () {
if (!_this.props.disabled) {
_this.setState({ isEditing: true });
}
};
_this.handleTextChange = function (event) {
var value = event.target.value;
// state value should be updated only when uncontrolled
if (_this.props.value == null) {
_this.setState({ value: value });
}
utils_1.safeInvoke(_this.props.onChange, value);
};
_this.handleKeyEvent = function (event) {
var altKey = event.altKey, ctrlKey = event.ctrlKey, metaKey = event.metaKey, shiftKey = event.shiftKey, which = event.which;
if (which === Keys.ESCAPE) {
_this.cancelEditing();
return;
}
var hasModifierKey = altKey || ctrlKey || metaKey || shiftKey;
if (which === Keys.ENTER) {
// prevent IE11 from full screening with alt + enter
// shift + enter adds a newline by default
if (altKey || shiftKey) {
event.preventDefault();
}
if (_this.props.confirmOnEnterKey && _this.props.multiline) {
if (event.target != null && hasModifierKey) {
insertAtCaret(event.target, "\n");
_this.handleTextChange(event);
}
else {
_this.toggleEditing();
}
}
else if (!_this.props.multiline || hasModifierKey) {
_this.toggleEditing();
}
}
};
_this.state = {
inputHeight: 0,
inputWidth: 0,
isEditing: props.isEditing === true && props.disabled === false,
lastValue: getValue(props),
value: getValue(props),
};
return _this;
}
EditableText.prototype.render = function () {
var _a = this.props, disabled = _a.disabled, multiline = _a.multiline;
var value = (this.props.value == null ? this.state.value : this.props.value);
var hasValue = (value != null && value !== "");
var classes = classNames(Classes.EDITABLE_TEXT, Classes.intentClass(this.props.intent), (_b = {},
_b[Classes.DISABLED] = disabled,
_b["pt-editable-editing"] = this.state.isEditing,
_b["pt-editable-placeholder"] = !hasValue,
_b["pt-multiline"] = multiline,
_b), this.props.className);
var contentStyle;
if (multiline) {
// set height only in multiline mode when not editing
// otherwise we're measuring this element to determine appropriate height of text
contentStyle = { height: !this.state.isEditing ? this.state.inputHeight : null };
}
else {
// minWidth only applies in single line mode (multiline == width 100%)
contentStyle = {
height: this.state.inputHeight,
lineHeight: this.state.inputHeight != null ? this.state.inputHeight + "px" : null,
minWidth: this.props.minWidth,
};
}
// make enclosing div focusable when not editing, so it can still be tabbed to focus
// (when editing, input itself is focusable so div doesn't need to be)
var tabIndex = this.state.isEditing || disabled ? null : 0;
return (React.createElement("div", { className: classes, onFocus: this.handleFocus, tabIndex: tabIndex },
this.maybeRenderInput(value),
React.createElement("span", { className: "pt-editable-content", ref: this.refHandlers.content, style: contentStyle }, hasValue ? value : this.props.placeholder)));
var _b;
};
EditableText.prototype.componentDidMount = function () {
this.updateInputDimensions();
};
EditableText.prototype.componentDidUpdate = function (_, prevState) {
if (this.state.isEditing && !prevState.isEditing) {
utils_1.safeInvoke(this.props.onEdit);
}
this.updateInputDimensions();
};
EditableText.prototype.componentWillReceiveProps = function (nextProps) {
var state = { value: getValue(nextProps) };
if (nextProps.isEditing != null) {
state.isEditing = nextProps.isEditing;
}
if (nextProps.disabled || (nextProps.disabled == null && this.props.disabled)) {
state.isEditing = false;
}
this.setState(state);
};
EditableText.prototype.maybeRenderInput = function (value) {
var _a = this.props, maxLength = _a.maxLength, multiline = _a.multiline;
if (!this.state.isEditing) {
return undefined;
}
var props = {
className: "pt-editable-input",
maxLength: maxLength,
onBlur: this.toggleEditing,
onChange: this.handleTextChange,
onKeyDown: this.handleKeyEvent,
ref: this.refHandlers.input,
style: {
height: this.state.inputHeight,
lineHeight: !multiline && this.state.inputHeight != null ? this.state.inputHeight + "px" : null,
width: multiline ? "100%" : this.state.inputWidth,
},
value: value,
};
return multiline ? React.createElement("textarea", tslib_1.__assign({}, props)) : React.createElement("input", tslib_1.__assign({ type: "text" }, props));
};
EditableText.prototype.updateInputDimensions = function () {
if (this.valueElement != null) {
var _a = this.props, maxLines = _a.maxLines, minLines = _a.minLines, minWidth = _a.minWidth, multiline = _a.multiline;
var _b = this.valueElement, parentElement_1 = _b.parentElement, textContent = _b.textContent;
var _c = this.valueElement, scrollHeight_1 = _c.scrollHeight, scrollWidth = _c.scrollWidth;
var lineHeight = getLineHeight(this.valueElement);
// add one line to computed <span> height if text ends in newline
// because <span> collapses that trailing whitespace but <textarea> shows it
if (multiline && this.state.isEditing && /\n$/.test(textContent)) {
scrollHeight_1 += lineHeight;
}
if (lineHeight > 0) {
// line height could be 0 if the isNaN block from getLineHeight kicks in
scrollHeight_1 = utils_1.clamp(scrollHeight_1, minLines * lineHeight, maxLines * lineHeight);
}
// Chrome's input caret height misaligns text so the line-height must be larger than font-size.
// The computed scrollHeight must also account for a larger inherited line-height from the parent.
scrollHeight_1 = Math.max(scrollHeight_1, getFontSize(this.valueElement) + 1, getLineHeight(parentElement_1));
// IE11 & Edge needs a small buffer so text does not shift prior to resizing
if (compatibility_1.Browser.isEdge()) {
scrollWidth += BUFFER_WIDTH_EDGE;
}
else if (compatibility_1.Browser.isInternetExplorer()) {
scrollWidth += BUFFER_WIDTH_IE;
}
this.setState({
inputHeight: scrollHeight_1,
inputWidth: Math.max(scrollWidth, minWidth),
});
// synchronizes the ::before pseudo-element's height while editing for Chrome 53
if (multiline && this.state.isEditing) {
this.setTimeout(function () { return parentElement_1.style.height = scrollHeight_1 + "px"; });
}
}
};
return EditableText;
}(abstractComponent_1.AbstractComponent));
EditableText.defaultProps = {
confirmOnEnterKey: false,
defaultValue: "",
disabled: false,
maxLines: Infinity,
minLines: 1,
minWidth: 80,
multiline: false,
placeholder: "Click to Edit",
};
EditableText = tslib_1.__decorate([
PureRender
], EditableText);
exports.EditableText = EditableText;
function getValue(props) {
return props.value == null ? props.defaultValue : props.value;
}
function getFontSize(element) {
var fontSize = getComputedStyle(element).fontSize;
return fontSize === "" ? 0 : parseInt(fontSize.slice(0, -2), 10);
}
function getLineHeight(element) {
// getComputedStyle() => 18.0001px => 18
var lineHeight = parseInt(getComputedStyle(element).lineHeight.slice(0, -2), 10);
// this check will be true if line-height is a keyword like "normal"
if (isNaN(lineHeight)) {
// @see http://stackoverflow.com/a/18430767/6342931
var line = document.createElement("span");
line.innerHTML = "<br>";
element.appendChild(line);
var singleLineHeight = element.offsetHeight;
line.innerHTML = "<br><br>";
var doubleLineHeight = element.offsetHeight;
element.removeChild(line);
// this can return 0 in edge cases
lineHeight = doubleLineHeight - singleLineHeight;
}
return lineHeight;
}
function insertAtCaret(el, text) {
var selectionEnd = el.selectionEnd, selectionStart = el.selectionStart, value = el.value;
if (selectionStart >= 0) {
var before = value.substring(0, selectionStart);
var after = value.substring(selectionEnd, value.length);
var len = text.length;
el.value = "" + before + text + after;
el.selectionStart = selectionStart + len;
el.selectionEnd = selectionStart + len;
}
}
exports.EditableTextFactory = React.createFactory(EditableText);
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