devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (cjs/mobile/init_mobile_viewport/init_mobile_viewport.js)
* Version: 22.1.9
* Build date: Tue Apr 18 2023
*
* Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
exports.initMobileViewport = void 0;
var _size = require("../../core/utils/size");
var _renderer = _interopRequireDefault(require("../../core/renderer"));
var _dom_adapter = _interopRequireDefault(require("../../core/dom_adapter"));
var _window = require("../../core/utils/window");
var _events_engine = _interopRequireDefault(require("../../events/core/events_engine"));
var _extend = require("../../core/utils/extend");
var _resize_callbacks = _interopRequireDefault(require("../../core/utils/resize_callbacks"));
var _support = require("../../core/utils/support");
var _style = require("../../core/utils/style");
var _devices = _interopRequireDefault(require("../../core/devices"));
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
}
}
var window = (0, _window.getWindow)();
var initMobileViewport = function(options) {
options = (0, _extend.extend)({}, options);
var realDevice = _devices.default.real();
var allowZoom = options.allowZoom;
var allowPan = options.allowPan;
var allowSelection = "allowSelection" in options ? options.allowSelection : "generic" === realDevice.platform;
if (!(0, _renderer.default)("meta[name=viewport]").length) {
(0, _renderer.default)("<meta>").attr("name", "viewport").appendTo("head")
}
var metaVerbs = ["width=device-width"];
var msTouchVerbs = [];
if (allowZoom) {
msTouchVerbs.push("pinch-zoom")
} else {
metaVerbs.push("initial-scale=1.0", "maximum-scale=1.0, user-scalable=no")
}
if (allowPan) {
msTouchVerbs.push("pan-x", "pan-y")
}
if (!allowPan && !allowZoom) {
(0, _renderer.default)("html, body").css({
msContentZooming: "none",
msUserSelect: "none",
overflow: "hidden"
})
} else {
(0, _renderer.default)("html").css("msOverflowStyle", "-ms-autohiding-scrollbar")
}
if (!allowSelection && (0, _support.supportProp)("userSelect")) {
(0, _renderer.default)(".dx-viewport").css((0, _style.styleProp)("userSelect"), "none")
}(0, _renderer.default)("meta[name=viewport]").attr("content", metaVerbs.join());
(0, _renderer.default)("html").css("msTouchAction", msTouchVerbs.join(" ") || "none");
realDevice = _devices.default.real();
if (_support.touch) {
_events_engine.default.off(_dom_adapter.default.getDocument(), ".dxInitMobileViewport");
_events_engine.default.on(_dom_adapter.default.getDocument(), "dxpointermove.dxInitMobileViewport", (function(e) {
var count = e.pointers.length;
var isTouchEvent = "touch" === e.pointerType;
var zoomDisabled = !allowZoom && count > 1;
var panDisabled = !allowPan && 1 === count && !e.isScrollingEvent;
if (isTouchEvent && (zoomDisabled || panDisabled)) {
e.preventDefault()
}
}))
}
if (realDevice.ios) {
var isPhoneGap = "file:" === _dom_adapter.default.getLocation().protocol;
if (!isPhoneGap) {
_resize_callbacks.default.add((function() {
var windowWidth = (0, _size.getWidth)(window);
(0, _size.setWidth)((0, _renderer.default)("body"), windowWidth)
}))
}
}
if (realDevice.android) {
_resize_callbacks.default.add((function() {
setTimeout((function() {
var activeElement = _dom_adapter.default.getActiveElement();
activeElement.scrollIntoViewIfNeeded ? activeElement.scrollIntoViewIfNeeded() : activeElement.scrollIntoView(false)
}))
}))
}
};
exports.initMobileViewport = initMobileViewport;