kre-form
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本项目由 Angular8+ 编写的表单设计器和表单应用，所有的配置都是 JSON 结构体组成,PC 端是基于 ANT 组件库封装
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JavaScript
(window["webpackJsonp"] = window["webpackJsonp"] || []).push([["keyboard-dd970efc-js"],{
/***/ "./node_modules/@ionic/core/dist/esm-es5/keyboard-dd970efc.js":
/*!********************************************************************!*\
!*** ./node_modules/@ionic/core/dist/esm-es5/keyboard-dd970efc.js ***!
\********************************************************************/
/*! exports provided: KEYBOARD_DID_CLOSE, KEYBOARD_DID_OPEN, copyVisualViewport, keyboardDidClose, keyboardDidOpen, keyboardDidResize, resetKeyboardAssist, setKeyboardClose, setKeyboardOpen, startKeyboardAssist, trackViewportChanges */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
;
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KEYBOARD_DID_CLOSE", function() { return KEYBOARD_DID_CLOSE; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KEYBOARD_DID_OPEN", function() { return KEYBOARD_DID_OPEN; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copyVisualViewport", function() { return copyVisualViewport; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "keyboardDidClose", function() { return keyboardDidClose; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "keyboardDidOpen", function() { return keyboardDidOpen; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "keyboardDidResize", function() { return keyboardDidResize; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "resetKeyboardAssist", function() { return resetKeyboardAssist; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setKeyboardClose", function() { return setKeyboardClose; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setKeyboardOpen", function() { return setKeyboardOpen; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "startKeyboardAssist", function() { return startKeyboardAssist; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "trackViewportChanges", function() { return trackViewportChanges; });
var KEYBOARD_DID_OPEN = 'ionKeyboardDidShow';
var KEYBOARD_DID_CLOSE = 'ionKeyboardDidHide';
var KEYBOARD_THRESHOLD = 150;
var previousVisualViewport = {};
var currentVisualViewport = {};
var keyboardOpen = false;
/**
* This is only used for tests
*/
var resetKeyboardAssist = function () {
previousVisualViewport = {};
currentVisualViewport = {};
keyboardOpen = false;
};
var startKeyboardAssist = function (win) {
startNativeListeners(win);
if (!win.visualViewport) {
return;
}
currentVisualViewport = copyVisualViewport(win.visualViewport);
win.visualViewport.onresize = function () {
trackViewportChanges(win);
if (keyboardDidOpen() || keyboardDidResize(win)) {
setKeyboardOpen(win);
}
else if (keyboardDidClose(win)) {
setKeyboardClose(win);
}
};
};
/**
* Listen for events fired by native keyboard plugin
* in Capacitor/Cordova so devs only need to listen
* in one place.
*/
var startNativeListeners = function (win) {
win.addEventListener('keyboardDidShow', function (ev) { return setKeyboardOpen(win, ev); });
win.addEventListener('keyboardDidHide', function () { return setKeyboardClose(win); });
};
var setKeyboardOpen = function (win, ev) {
fireKeyboardOpenEvent(win, ev);
keyboardOpen = true;
};
var setKeyboardClose = function (win) {
fireKeyboardCloseEvent(win);
keyboardOpen = false;
};
/**
* Returns `true` if the `keyboardOpen` flag is not
* set, the previous visual viewport width equal the current
* visual viewport width, and if the scaled difference
* of the previous visual viewport height minus the current
* visual viewport height is greater than KEYBOARD_THRESHOLD
*
* We need to be able to accommodate users who have zooming
* enabled in their browser (or have zoomed in manually) which
* is why we take into account the current visual viewport's
* scale value.
*/
var keyboardDidOpen = function () {
var scaledHeightDifference = (previousVisualViewport.height - currentVisualViewport.height) * currentVisualViewport.scale;
return (!keyboardOpen &&
previousVisualViewport.width === currentVisualViewport.width &&
scaledHeightDifference > KEYBOARD_THRESHOLD);
};
/**
* Returns `true` if the keyboard is open,
* but the keyboard did not close
*/
var keyboardDidResize = function (win) {
return keyboardOpen && !keyboardDidClose(win);
};
/**
* Determine if the keyboard was closed
* Returns `true` if the `keyboardOpen` flag is set and
* the current visual viewport height equals the
* layout viewport height.
*/
var keyboardDidClose = function (win) {
return keyboardOpen && currentVisualViewport.height === win.innerHeight;
};
/**
* Dispatch a keyboard open event
*/
var fireKeyboardOpenEvent = function (win, nativeEv) {
var keyboardHeight = nativeEv ? nativeEv.keyboardHeight : win.innerHeight - currentVisualViewport.height;
var ev = new CustomEvent(KEYBOARD_DID_OPEN, {
detail: { keyboardHeight: keyboardHeight }
});
win.dispatchEvent(ev);
};
/**
* Dispatch a keyboard close event
*/
var fireKeyboardCloseEvent = function (win) {
var ev = new CustomEvent(KEYBOARD_DID_CLOSE);
win.dispatchEvent(ev);
};
/**
* Given a window object, create a copy of
* the current visual and layout viewport states
* while also preserving the previous visual and
* layout viewport states
*/
var trackViewportChanges = function (win) {
previousVisualViewport = Object.assign({}, currentVisualViewport);
currentVisualViewport = copyVisualViewport(win.visualViewport);
};
/**
* Creates a deep copy of the visual viewport
* at a given state
*/
var copyVisualViewport = function (visualViewport) {
return {
width: Math.round(visualViewport.width),
height: Math.round(visualViewport.height),
offsetTop: visualViewport.offsetTop,
offsetLeft: visualViewport.offsetLeft,
pageTop: visualViewport.pageTop,
pageLeft: visualViewport.pageLeft,
scale: visualViewport.scale
};
};
/***/ })
}]);
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