ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
198 lines • 19.7 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @license
* Copyright Alibaba.com All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
// from https://github.com/component/textarea-caret-position
// We'll copy the properties below into the mirror div.
// Note that some browsers, such as Firefox, do not concatenate properties
// into their shorthand (e.g. padding-top, padding-bottom etc. -> padding),
// so we have to list every single property explicitly.
/** @type {?} */
export const properties = [
'direction',
'boxSizing',
'width',
'height',
'overflowX',
'overflowY',
'borderTopWidth',
'borderRightWidth',
'borderBottomWidth',
'borderLeftWidth',
'borderStyle',
'paddingTop',
'paddingRight',
'paddingBottom',
'paddingLeft',
// https://developer.mozilla.org/en-US/docs/Web/CSS/font
'fontStyle',
'fontVariant',
'fontWeight',
'fontStretch',
'fontSize',
'fontSizeAdjust',
'lineHeight',
'fontFamily',
'textAlign',
'textTransform',
'textIndent',
'textDecoration',
'letterSpacing',
'wordSpacing',
'tabSize',
'MozTabSize'
];
/** @type {?} */
const isBrowser = typeof window !== 'undefined';
// tslint:disable-next-line:no-any
/** @type {?} */
const isFirefox = isBrowser && ((/** @type {?} */ (window))).mozInnerScreenX != null;
/** @type {?} */
const _parseInt = (/**
* @param {?} str
* @return {?}
*/
(str) => parseInt(str, 10));
const ɵ0 = _parseInt;
/**
* @record
*/
export function Coordinates() { }
if (false) {
/** @type {?} */
Coordinates.prototype.top;
/** @type {?} */
Coordinates.prototype.left;
/** @type {?} */
Coordinates.prototype.height;
}
/**
* @param {?} element
* @param {?} position
* @param {?=} options
* @return {?}
*/
export function getCaretCoordinates(element, position, options) {
if (!isBrowser) {
throw new Error('textarea-caret-position#getCaretCoordinates should only be called in a browser');
}
/** @type {?} */
const debug = (options && options.debug) || false;
if (debug) {
/** @type {?} */
const el = document.querySelector('#input-textarea-caret-position-mirror-div');
if (el) {
(/** @type {?} */ (el.parentNode)).removeChild(el);
}
}
// The mirror div will replicate the textarea's style
/** @type {?} */
const div = document.createElement('div');
div.id = 'input-textarea-caret-position-mirror-div';
document.body.appendChild(div);
/** @type {?} */
const style = div.style;
// tslint:disable-next-line:no-any
/** @type {?} */
const computed = window.getComputedStyle ? window.getComputedStyle(element) : ((/** @type {?} */ (element))).currentStyle;
// currentStyle for IE < 9
/** @type {?} */
const isInput = element.nodeName === 'INPUT';
// Default textarea styles
style.whiteSpace = 'pre-wrap';
if (!isInput) {
style.wordWrap = 'break-word'; // only for textarea-s
}
// Position off-screen
style.position = 'absolute'; // required to return coordinates properly
if (!debug) {
style.visibility = 'hidden';
} // not 'display: none' because we want rendering
// Transfer the element's properties to the div
properties.forEach((/**
* @param {?} prop
* @return {?}
*/
(prop) => {
if (isInput && prop === 'lineHeight') {
// Special case for <input>s because text is rendered centered and line height may be != height
style.lineHeight = computed.height;
}
else {
// @ts-ignore
style[prop] = computed[prop];
}
}));
if (isFirefox) {
// Firefox lies about the overflow property for textareas: https://bugzilla.mozilla.org/show_bug.cgi?id=984275
if (element.scrollHeight > _parseInt(computed.height)) {
style.overflowY = 'scroll';
}
}
else {
style.overflow = 'hidden'; // for Chrome to not render a scrollbar; IE keeps overflowY = 'scroll'
}
div.textContent = element.value.substring(0, position);
// The second special handling for input type="text" vs textarea:
// spaces need to be replaced with non-breaking spaces - http://stackoverflow.com/a/13402035/1269037
if (isInput) {
div.textContent = div.textContent.replace(/\s/g, '\u00a0');
}
/** @type {?} */
const span = document.createElement('span');
// Wrapping must be replicated *exactly*, including when a long word gets
// onto the next line, with whitespace at the end of the line before (#7).
// The *only* reliable way to do that is to copy the *entire* rest of the
// textarea's content into the <span> created at the caret position.
// For inputs, just '.' would be enough, but no need to bother.
span.textContent = element.value.substring(position) || '.'; // || because a completely empty faux span doesn't render at all
div.appendChild(span);
/** @type {?} */
const coordinates = {
top: span.offsetTop + _parseInt(computed.borderTopWidth),
left: span.offsetLeft + _parseInt(computed.borderLeftWidth),
height: _parseInt(computed.lineHeight)
};
if (debug) {
span.style.backgroundColor = '#eee';
createDebugEle(element, coordinates);
}
else {
document.body.removeChild(div);
}
return coordinates;
}
/**
* @param {?} element
* @param {?} coordinates
* @return {?}
*/
export function createDebugEle(element, coordinates) {
/** @type {?} */
const fontSize = getComputedStyle(element).getPropertyValue('font-size');
/** @type {?} */
const rect = ((/** @type {?} */ (document.querySelector('#DEBUG')))) || document.createElement('div');
document.body.appendChild(rect);
rect.id = 'DEBUG';
rect.style.position = 'absolute';
rect.style.backgroundColor = 'red';
rect.style.height = fontSize;
rect.style.width = '1px';
rect.style.top = `${element.getBoundingClientRect().top -
element.scrollTop +
window.pageYOffset +
coordinates.top}px`;
rect.style.left = `${element.getBoundingClientRect().left -
element.scrollLeft +
window.pageXOffset +
coordinates.left}px`;
}
export { ɵ0 };
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* @license\n * Copyright Alibaba.com All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\n// from https://github.com/component/textarea-caret-position\n\n// We'll copy the properties below into the mirror div.\n// Note that some browsers, such as Firefox, do not concatenate properties\n// into their shorthand (e.g. padding-top, padding-bottom etc. -> padding),\n// so we have to list every single property explicitly.\nexport const properties = [\n  'direction', // RTL support\n  'boxSizing',\n  'width', // on Chrome and IE, exclude the scrollbar, so the mirror div wraps exactly as the textarea does\n  'height',\n  'overflowX',\n  'overflowY', // copy the scrollbar for IE\n\n  'borderTopWidth',\n  'borderRightWidth',\n  'borderBottomWidth',\n  'borderLeftWidth',\n  'borderStyle',\n\n  'paddingTop',\n  'paddingRight',\n  'paddingBottom',\n  'paddingLeft',\n\n  // https://developer.mozilla.org/en-US/docs/Web/CSS/font\n  'fontStyle',\n  'fontVariant',\n  'fontWeight',\n  'fontStretch',\n  'fontSize',\n  'fontSizeAdjust',\n  'lineHeight',\n  'fontFamily',\n\n  'textAlign',\n  'textTransform',\n  'textIndent',\n  'textDecoration', // might not make a difference, but better be safe\n\n  'letterSpacing',\n  'wordSpacing',\n\n  'tabSize',\n  'MozTabSize'\n];\n\nconst isBrowser = typeof window !== 'undefined';\n\n// tslint:disable-next-line:no-any\nconst isFirefox = isBrowser && (window as any).mozInnerScreenX != null;\n\nconst _parseInt = (str: string) => parseInt(str, 10);\n\nexport interface Coordinates {\n  top: number;\n  left: number;\n  height: number;\n}\n\nexport function getCaretCoordinates(\n  element: HTMLInputElement | HTMLTextAreaElement,\n  position: number,\n  options?: { debug?: boolean }\n): Coordinates {\n  if (!isBrowser) {\n    throw new Error('textarea-caret-position#getCaretCoordinates should only be called in a browser');\n  }\n\n  const debug = (options && options.debug) || false;\n  if (debug) {\n    const el = document.querySelector('#input-textarea-caret-position-mirror-div');\n    if (el) {\n      el.parentNode!.removeChild(el);\n    }\n  }\n\n  // The mirror div will replicate the textarea's style\n  const div = document.createElement('div');\n  div.id = 'input-textarea-caret-position-mirror-div';\n  document.body.appendChild(div);\n\n  const style = div.style;\n\n  // tslint:disable-next-line:no-any\n  const computed = window.getComputedStyle ? window.getComputedStyle(element) : (element as any).currentStyle; // currentStyle for IE < 9\n  const isInput = element.nodeName === 'INPUT';\n\n  // Default textarea styles\n  style.whiteSpace = 'pre-wrap';\n  if (!isInput) {\n    style.wordWrap = 'break-word'; // only for textarea-s\n  }\n\n  // Position off-screen\n  style.position = 'absolute'; // required to return coordinates properly\n  if (!debug) {\n    style.visibility = 'hidden';\n  } // not 'display: none' because we want rendering\n\n  // Transfer the element's properties to the div\n  properties.forEach((prop: string) => {\n    if (isInput && prop === 'lineHeight') {\n      // Special case for <input>s because text is rendered centered and line height may be != height\n      style.lineHeight = computed.height;\n    } else {\n      // @ts-ignore\n      style[prop] = computed[prop];\n    }\n  });\n\n  if (isFirefox) {\n    // Firefox lies about the overflow property for textareas: https://bugzilla.mozilla.org/show_bug.cgi?id=984275\n    if (element.scrollHeight > _parseInt(computed.height)) {\n      style.overflowY = 'scroll';\n    }\n  } else {\n    style.overflow = 'hidden'; // for Chrome to not render a scrollbar; IE keeps overflowY = 'scroll'\n  }\n\n  div.textContent = element.value.substring(0, position);\n  // The second special handling for input type=\"text\" vs textarea:\n  // spaces need to be replaced with non-breaking spaces - http://stackoverflow.com/a/13402035/1269037\n  if (isInput) {\n    div.textContent = div.textContent.replace(/\\s/g, '\\u00a0');\n  }\n\n  const span = document.createElement('span');\n  // Wrapping must be replicated *exactly*, including when a long word gets\n  // onto the next line, with whitespace at the end of the line before (#7).\n  // The  *only* reliable way to do that is to copy the *entire* rest of the\n  // textarea's content into the <span> created at the caret position.\n  // For inputs, just '.' would be enough, but no need to bother.\n  span.textContent = element.value.substring(position) || '.'; // || because a completely empty faux span doesn't render at all\n  div.appendChild(span);\n\n  const coordinates = {\n    top: span.offsetTop + _parseInt(computed.borderTopWidth),\n    left: span.offsetLeft + _parseInt(computed.borderLeftWidth),\n    height: _parseInt(computed.lineHeight)\n  };\n\n  if (debug) {\n    span.style.backgroundColor = '#eee';\n    createDebugEle(element, coordinates);\n  } else {\n    document.body.removeChild(div);\n  }\n\n  return coordinates;\n}\n\nexport function createDebugEle(element: HTMLInputElement | HTMLTextAreaElement, coordinates: Coordinates): void {\n  const fontSize = getComputedStyle(element).getPropertyValue('font-size');\n  const rect: HTMLSpanElement = (document.querySelector('#DEBUG') as HTMLSpanElement) || document.createElement('div');\n  document.body.appendChild(rect);\n  rect.id = 'DEBUG';\n  rect.style.position = 'absolute';\n  rect.style.backgroundColor = 'red';\n  rect.style.height = fontSize;\n  rect.style.width = '1px';\n  rect.style.top = `${element.getBoundingClientRect().top -\n    element.scrollTop +\n    window.pageYOffset +\n    coordinates.top}px`;\n  rect.style.left = `${element.getBoundingClientRect().left -\n    element.scrollLeft +\n    window.pageXOffset +\n    coordinates.left}px`;\n}\n"]}