text: /*
   * Copyright 2016 Palantir Technologies, Inc. All rights reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  import { __decorate } from "tslib";
  import classNames from "classnames";
  import * as React from "react";
  import { polyfill } from "react-lifecycles-compat";
  import { AbstractPureComponent2, Classes, Keys } from "../../common";
  import { DISPLAYNAME_PREFIX } from "../../common/props";
  import { clamp, safeInvoke } from "../../common/utils";
  import { Browser } from "../../compatibility";
  const BUFFER_WIDTH_EDGE = 5;
  const BUFFER_WIDTH_IE = 30;
  let EditableText = class EditableText extends AbstractPureComponent2 {
      constructor(props, context) {
          super(props, context);
          this.refHandlers = {
              content: (spanElement) => {
                  this.valueElement = spanElement;
              },
              input: (input) => {
                  if (input != null) {
                      this.inputElement = input;
                      // temporary fix for #3882
                      if (!this.props.alwaysRenderInput) {
                          this.inputElement.focus();
                      }
                      if (this.state != null && this.state.isEditing) {
                          const supportsSelection = inputSupportsSelection(input);
                          if (supportsSelection) {
                              const { length } = input.value;
                              input.setSelectionRange(this.props.selectAllOnFocus ? 0 : length, length);
                          }
                          if (!supportsSelection || !this.props.selectAllOnFocus) {
                              input.scrollLeft = input.scrollWidth;
                          }
                      }
                  }
              },
          };
          this.cancelEditing = () => {
              const { lastValue, value } = this.state;
              this.setState({ isEditing: false, value: lastValue });
              if (value !== lastValue) {
                  safeInvoke(this.props.onChange, lastValue);
              }
              safeInvoke(this.props.onCancel, lastValue);
          };
          this.toggleEditing = () => {
              if (this.state.isEditing) {
                  const { value } = this.state;
                  this.setState({ isEditing: false, lastValue: value });
                  safeInvoke(this.props.onConfirm, value);
              }
              else if (!this.props.disabled) {
                  this.setState({ isEditing: true });
              }
          };
          this.handleFocus = () => {
              const { alwaysRenderInput, disabled, selectAllOnFocus } = this.props;
              if (!disabled) {
                  this.setState({ isEditing: true });
              }
              if (alwaysRenderInput && selectAllOnFocus && this.inputElement != null) {
                  const { length } = this.inputElement.value;
                  this.inputElement.setSelectionRange(0, length);
              }
          };
          this.handleTextChange = (event) => {
              const value = event.target.value;
              // state value should be updated only when uncontrolled
              if (this.props.value == null) {
                  this.setState({ value });
              }
              safeInvoke(this.props.onChange, value);
          };
          this.handleKeyEvent = (event) => {
              const { altKey, ctrlKey, metaKey, shiftKey, which } = event;
              if (which === Keys.ESCAPE) {
                  this.cancelEditing();
                  return;
              }
              const 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();
                  }
              }
          };
          const value = props.value == null ? props.defaultValue : props.value;
          this.state = {
              inputHeight: 0,
              inputWidth: 0,
              isEditing: props.isEditing === true && props.disabled === false,
              lastValue: value,
              value,
          };
      }
      render() {
          const { alwaysRenderInput, disabled, multiline } = this.props;
          const value = this.props.value == null ? this.state.value : this.props.value;
          const hasValue = value != null && value !== "";
          const classes = classNames(Classes.EDITABLE_TEXT, Classes.intentClass(this.props.intent), {
              [Classes.DISABLED]: disabled,
              [Classes.EDITABLE_TEXT_EDITING]: this.state.isEditing,
              [Classes.EDITABLE_TEXT_PLACEHOLDER]: !hasValue,
              [Classes.MULTILINE]: multiline,
          }, this.props.className);
          let 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,
              };
          }
          // If we are always rendering an input, then NEVER make the container div focusable.
          // Otherwise, make container div focusable when not editing, so it can still be tabbed
          // to focus (when the input is rendered, it is itself focusable so container div doesn't need to be)
          const tabIndex = alwaysRenderInput || this.state.isEditing || disabled ? null : 0;
          // we need the contents to be rendered while editing so that we can measure their height
          // and size the container element responsively
          const shouldHideContents = alwaysRenderInput && !this.state.isEditing;
          return (React.createElement("div", { className: classes, onFocus: this.handleFocus, tabIndex: tabIndex },
              alwaysRenderInput || this.state.isEditing ? this.renderInput(value) : undefined,
              shouldHideContents ? undefined : (React.createElement("span", { className: Classes.EDITABLE_TEXT_CONTENT, ref: this.refHandlers.content, style: contentStyle }, hasValue ? value : this.props.placeholder))));
      }
      componentDidMount() {
          this.updateInputDimensions();
      }
      componentDidUpdate(prevProps, prevState) {
          const state = {};
          // allow setting the value to undefined/null in controlled mode
          if (this.props.value !== prevProps.value && (prevProps.value != null || this.props.value != null)) {
              state.value = this.props.value;
          }
          if (this.props.isEditing != null && this.props.isEditing !== prevProps.isEditing) {
              state.isEditing = this.props.isEditing;
          }
          if (this.props.disabled || (this.props.disabled == null && prevProps.disabled)) {
              state.isEditing = false;
          }
          this.setState(state);
          if (this.state.isEditing && !prevState.isEditing) {
              safeInvoke(this.props.onEdit, this.state.value);
          }
          this.updateInputDimensions();
      }
      renderInput(value) {
          const { maxLength, multiline, type, placeholder } = this.props;
          const props = {
              className: Classes.EDITABLE_TEXT_INPUT,
              maxLength,
              onBlur: this.toggleEditing,
              onChange: this.handleTextChange,
              onKeyDown: this.handleKeyEvent,
              placeholder,
              value,
          };
          const { inputHeight, inputWidth } = this.state;
          if (inputHeight !== 0 && inputWidth !== 0) {
              props.style = {
                  height: inputHeight,
                  lineHeight: !multiline && inputHeight != null ? `${inputHeight}px` : null,
                  width: multiline ? "100%" : inputWidth,
              };
          }
          return multiline ? (React.createElement("textarea", Object.assign({ ref: this.refHandlers.input }, props))) : (React.createElement("input", Object.assign({ ref: this.refHandlers.input, type: type }, props)));
      }
      updateInputDimensions() {
          if (this.valueElement != null) {
              const { maxLines, minLines, minWidth, multiline } = this.props;
              const { parentElement, textContent } = this.valueElement;
              let { scrollHeight, scrollWidth } = this.valueElement;
              const 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$/.test(textContent)) {
                  scrollHeight += lineHeight;
              }
              if (lineHeight > 0) {
                  // line height could be 0 if the isNaN block from getLineHeight kicks in
                  scrollHeight = clamp(scrollHeight, minLines * lineHeight, maxLines * lineHeight);
              }
              // Chrome's input caret height misaligns text so the line-height must be larger than font-size.
              // The computed scrollHeight must also account for a larger inherited line-height from the parent.
              scrollHeight = Math.max(scrollHeight, getFontSize(this.valueElement) + 1, getLineHeight(parentElement));
              // IE11 & Edge needs a small buffer so text does not shift prior to resizing
              if (Browser.isEdge()) {
                  scrollWidth += BUFFER_WIDTH_EDGE;
              }
              else if (Browser.isInternetExplorer()) {
                  scrollWidth += BUFFER_WIDTH_IE;
              }
              this.setState({
                  inputHeight: scrollHeight,
                  inputWidth: Math.max(scrollWidth, minWidth),
              });
              // synchronizes the ::before pseudo-element's height while editing for Chrome 53
              if (multiline && this.state.isEditing) {
                  this.setTimeout(() => (parentElement.style.height = `${scrollHeight}px`));
              }
          }
      }
  };
  EditableText.displayName = `${DISPLAYNAME_PREFIX}.EditableText`;
  EditableText.defaultProps = {
      alwaysRenderInput: false,
      confirmOnEnterKey: false,
      defaultValue: "",
      disabled: false,
      maxLines: Infinity,
      minLines: 1,
      minWidth: 80,
      multiline: false,
      placeholder: "Click to Edit",
      type: "text",
  };
  EditableText = __decorate([
      polyfill
  ], EditableText);
  export { EditableText };
  function getFontSize(element) {
      const fontSize = getComputedStyle(element).fontSize;
      return fontSize === "" ? 0 : parseInt(fontSize.slice(0, -2), 10);
  }
  function getLineHeight(element) {
      // getComputedStyle() => 18.0001px => 18
      let lineHeight = parseInt(getComputedStyle(element).lineHeight.slice(0, -2), 10);
      // this check will be true if line-height is a keyword like "normal"
      if (isNaN(lineHeight)) {
          // @see http://stackoverflow.com/a/18430767/6342931
          const line = document.createElement("span");
          line.innerHTML = "<br>";
          element.appendChild(line);
          const singleLineHeight = element.offsetHeight;
          line.innerHTML = "<br><br>";
          const doubleLineHeight = element.offsetHeight;
          element.removeChild(line);
          // this can return 0 in edge cases
          lineHeight = doubleLineHeight - singleLineHeight;
      }
      return lineHeight;
  }
  function insertAtCaret(el, text) {
      const { selectionEnd, selectionStart, value } = el;
      if (selectionStart >= 0) {
          const before = value.substring(0, selectionStart);
          const after = value.substring(selectionEnd, value.length);
          const len = text.length;
          el.value = `${before}${text}${after}`;
          el.selectionStart = selectionStart + len;
          el.selectionEnd = selectionStart + len;
      }
  }
  function inputSupportsSelection(input) {
      switch (input.type) {
          // HTMLTextAreaElement
          case "textarea":
              return true;
          // HTMLInputElement
          // see https://html.spec.whatwg.org/multipage/input.html#do-not-apply
          case "text":
          case "search":
          case "tel":
          case "url":
          case "password":
              return true;
          default:
              return false;
      }
  }
  //# sourceMappingURL=editableText.js.map