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core.js
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core.js
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// Copyright 2019-2021 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
// polyfills
if (!String.prototype.startsWith) {
String.prototype.startsWith = function (searchString, position) {
position = position || 0;
return this.substr(position, searchString.length) === searchString;
};
}
(function () {
function uid() {
const length = new Int8Array(1)
window.crypto.getRandomValues(length)
const array = new Uint8Array(Math.max(16, Math.abs(length[0])))
window.crypto.getRandomValues(array)
return array.join('')
}
function ownKeys(object, enumerableOnly) {
var keys = Object.keys(object);
if (Object.getOwnPropertySymbols) {
var symbols = Object.getOwnPropertySymbols(object);
if (enumerableOnly)
symbols = symbols.filter(function (sym) {
return Object.getOwnPropertyDescriptor(object, sym).enumerable;
});
keys.push.apply(keys, symbols);
}
return keys;
}
function _objectSpread(target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i] != null ? arguments[i] : {};
if (i % 2) {
ownKeys(source, true).forEach(function (key) {
_defineProperty(target, key, source[key]);
});
} else if (Object.getOwnPropertyDescriptors) {
Object.defineProperties(
target,
Object.getOwnPropertyDescriptors(source)
);
} else {
ownKeys(source).forEach(function (key) {
Object.defineProperty(
target,
key,
Object.getOwnPropertyDescriptor(source, key)
);
});
}
}
return target;
}
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true,
});
} else {
obj[key] = value;
}
return obj;
}
if (!window.__TAURI__) {
window.__TAURI__ = {};
}
window.__TAURI__.transformCallback = function transformCallback(
callback,
once
) {
var identifier = uid();
window[identifier] = function (result) {
if (once) {
delete window[identifier];
}
return callback && callback(result);
};
return identifier;
};
window.__TAURI__._invoke = function invoke(cmd, args = {}, key = null) {
return new Promise(function (resolve, reject) {
var callback = window.__TAURI__.transformCallback(function (r) {
resolve(r);
delete window[error];
}, true);
var error = window.__TAURI__.transformCallback(function (e) {
reject(e);
delete window[callback];
}, true);
if (typeof cmd === "string") {
args.cmd = cmd;
} else if (typeof cmd === "object") {
args = cmd;
} else {
return reject(new Error("Invalid argument type."));
}
if (window.rpc) {
window.rpc.notify(
cmd,
_objectSpread(
{
callback: callback,
error: error,
__invokeKey: key || __TAURI_INVOKE_KEY__,
},
args
)
);
} else {
window.addEventListener("DOMContentLoaded", function () {
window.rpc.notify(
cmd,
_objectSpread(
{
callback: callback,
error: error,
__invokeKey: key || __TAURI_INVOKE_KEY__,
},
args
)
);
});
}
});
};
// open <a href="..."> links with the Tauri API
function __openLinks() {
document.querySelector("body").addEventListener(
"click",
function (e) {
var target = e.target;
while (target != null) {
if (
target.matches ? target.matches("a") : target.msMatchesSelector("a")
) {
if (
target.href &&
target.href.startsWith("http") &&
target.target === "_blank"
) {
window.__TAURI__._invoke('tauri', {
__tauriModule: "Shell",
message: {
cmd: "open",
path: target.href,
},
}, _KEY_VALUE_);
e.preventDefault();
}
break;
}
target = target.parentElement;
}
},
true
);
}
if (
document.readyState === "complete" ||
document.readyState === "interactive"
) {
__openLinks();
} else {
window.addEventListener(
"DOMContentLoaded",
function () {
__openLinks();
},
true
);
}
// drag region
document.addEventListener('mousedown', (e) => {
// start dragging if the element has a `tauri-drag-region` data attribute
if (e.target.hasAttribute('data-tauri-drag-region') && e.buttons === 1) {
window.__TAURI__._invoke('tauri', {
__tauriModule: "Window",
message: {
cmd: "startDragging",
}
}, _KEY_VALUE_)
}
})
window.__TAURI__._invoke('tauri', {
__tauriModule: "Event",
message: {
cmd: "listen",
event: "tauri://window-created",
handler: window.__TAURI__.transformCallback(function (event) {
if (event.payload) {
var windowLabel = event.payload.label;
window.__TAURI__.__windows.push({ label: windowLabel });
}
}),
},
}, _KEY_VALUE_);
let permissionSettable = false;
let permissionValue = "default";
function isPermissionGranted() {
if (window.Notification.permission !== "default") {
return Promise.resolve(window.Notification.permission === "granted");
}
return window.__TAURI__._invoke('tauri', {
__tauriModule: "Notification",
message: {
cmd: "isNotificationPermissionGranted",
},
}, _KEY_VALUE_);
}
function setNotificationPermission(value) {
permissionSettable = true;
window.Notification.permission = value;
permissionSettable = false;
}
function requestPermission() {
return window.__TAURI__
.invoke('tauri', {
__tauriModule: "Notification",
message: {
cmd: "requestNotificationPermission",
},
}, _KEY_VALUE_)
.then(function (permission) {
setNotificationPermission(permission);
return permission;
});
}
function sendNotification(options) {
if (typeof options === "object") {
Object.freeze(options);
}
isPermissionGranted().then(function (permission) {
if (permission) {
return window.__TAURI__._invoke('tauri', {
__tauriModule: "Notification",
message: {
cmd: "notification",
options:
typeof options === "string"
? {
title: options,
}
: options,
},
}, _KEY_VALUE_);
}
});
}
window.Notification = function (title, options) {
var opts = options || {};
sendNotification(
Object.assign(opts, {
title: title,
})
);
};
window.Notification.requestPermission = requestPermission;
Object.defineProperty(window.Notification, "permission", {
enumerable: true,
get: function () {
return permissionValue;
},
set: function (v) {
if (!permissionSettable) {
throw new Error("Readonly property");
}
permissionValue = v;
},
});
isPermissionGranted().then(function (response) {
if (response === null) {
setNotificationPermission("default");
} else {
setNotificationPermission(response ? "granted" : "denied");
}
});
window.alert = function (message) {
window.__TAURI__._invoke('tauri', {
__tauriModule: "Dialog",
message: {
cmd: "messageDialog",
message: message,
},
}, _KEY_VALUE_);
};
window.confirm = function (message) {
return window.__TAURI__._invoke('tauri', {
__tauriModule: "Dialog",
message: {
cmd: "askDialog",
message: message,
},
}, _KEY_VALUE_);
};
// window.print works on Linux/Windows; need to use the API on macOS
if (navigator.userAgent.includes('Mac')) {
window.print = function () {
return window.__TAURI__._invoke('tauri', {
__tauriModule: "Window",
message: {
cmd: "print"
},
}, _KEY_VALUE_);
}
}
})();