345 lines
13 KiB
JavaScript
345 lines
13 KiB
JavaScript
/*
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*
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*/
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/* jslint sloppy:true */
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/* global Windows:true, setImmediate */
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var cordova = require('cordova'),
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urlutil = require('cordova/urlutil');
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var browserWrap,
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popup,
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navigationButtonsDiv,
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navigationButtonsDivInner,
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backButton,
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forwardButton,
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closeButton,
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bodyOverflowStyle,
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navigationEventsCallback;
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// x-ms-webview is available starting from Windows 8.1 (platformId is 'windows')
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// http://msdn.microsoft.com/en-us/library/windows/apps/dn301831.aspx
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var isWebViewAvailable = cordova.platformId === 'windows';
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function attachNavigationEvents(element, callback) {
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if (isWebViewAvailable) {
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element.addEventListener("MSWebViewNavigationStarting", function (e) {
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callback({ type: "loadstart", url: e.uri}, {keepCallback: true} );
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});
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element.addEventListener("MSWebViewNavigationCompleted", function (e) {
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if (e.isSuccess) {
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callback({ type: "loadstop", url: e.uri }, { keepCallback: true });
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} else {
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callback({ type: "loaderror", url: e.uri, code: e.webErrorStatus, message: "Navigation failed with error code " + e.webErrorStatus}, { keepCallback: true });
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}
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});
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element.addEventListener("MSWebViewUnviewableContentIdentified", function (e) {
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// WebView found the content to be not HTML.
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// http://msdn.microsoft.com/en-us/library/windows/apps/dn609716.aspx
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callback({ type: "loaderror", url: e.uri, code: e.webErrorStatus, message: "Navigation failed with error code " + e.webErrorStatus}, { keepCallback: true });
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});
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element.addEventListener("MSWebViewContentLoading", function (e) {
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if (navigationButtonsDiv && popup) {
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if (popup.canGoBack) {
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backButton.removeAttribute("disabled");
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} else {
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backButton.setAttribute("disabled", "true");
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}
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if (popup.canGoForward) {
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forwardButton.removeAttribute("disabled");
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} else {
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forwardButton.setAttribute("disabled", "true");
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}
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}
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});
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} else {
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var onError = function () {
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callback({ type: "loaderror", url: this.contentWindow.location}, {keepCallback: true});
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};
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element.addEventListener("unload", function () {
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callback({ type: "loadstart", url: this.contentWindow.location}, {keepCallback: true});
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});
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element.addEventListener("load", function () {
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callback({ type: "loadstop", url: this.contentWindow.location}, {keepCallback: true});
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});
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element.addEventListener("error", onError);
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element.addEventListener("abort", onError);
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}
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}
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var IAB = {
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close: function (win, lose) {
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setImmediate(function () {
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if (browserWrap) {
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if (navigationEventsCallback) {
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navigationEventsCallback({ type: "exit" });
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}
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browserWrap.parentNode.removeChild(browserWrap);
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// Reset body overflow style to initial value
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document.body.style.msOverflowStyle = bodyOverflowStyle;
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browserWrap = null;
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popup = null;
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}
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});
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},
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show: function (win, lose) {
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setImmediate(function () {
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if (browserWrap) {
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browserWrap.style.display = "block";
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}
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});
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},
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open: function (win, lose, args) {
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// make function async so that we can add navigation events handlers before view is loaded and navigation occured
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setImmediate(function () {
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var strUrl = args[0],
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target = args[1],
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features = args[2],
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url;
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navigationEventsCallback = win;
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if (target === "_system") {
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url = new Windows.Foundation.Uri(strUrl);
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Windows.System.Launcher.launchUriAsync(url);
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} else if (target === "_self" || !target) {
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window.location = strUrl;
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} else {
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// "_blank" or anything else
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if (!browserWrap) {
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var browserWrapStyle = document.createElement('link');
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browserWrapStyle.rel = "stylesheet";
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browserWrapStyle.type = "text/css";
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browserWrapStyle.href = urlutil.makeAbsolute("/www/css/inappbrowser.css");
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document.head.appendChild(browserWrapStyle);
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browserWrap = document.createElement("div");
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browserWrap.className = "inAppBrowserWrap";
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if (features.indexOf("fullscreen=yes") > -1) {
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browserWrap.classList.add("inAppBrowserWrapFullscreen");
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}
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// Save body overflow style to be able to reset it back later
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bodyOverflowStyle = document.body.style.msOverflowStyle;
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browserWrap.onclick = function () {
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setTimeout(function () {
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IAB.close(navigationEventsCallback);
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}, 0);
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};
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document.body.appendChild(browserWrap);
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// Hide scrollbars for the whole body while inappbrowser's window is open
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document.body.style.msOverflowStyle = "none";
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}
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if (features.indexOf("hidden=yes") !== -1) {
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browserWrap.style.display = "none";
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}
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popup = document.createElement(isWebViewAvailable ? "x-ms-webview" : "iframe");
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if (popup instanceof HTMLIFrameElement) {
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// For iframe we need to override bacground color of parent element here
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// otherwise pages without background color set will have transparent background
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popup.style.backgroundColor = "white";
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}
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popup.style.borderWidth = "0px";
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popup.style.width = "100%";
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browserWrap.appendChild(popup);
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if (features.indexOf("location=yes") !== -1 || features.indexOf("location") === -1) {
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popup.style.height = "calc(100% - 70px)";
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navigationButtonsDiv = document.createElement("div");
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navigationButtonsDiv.className = "inappbrowser-app-bar";
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navigationButtonsDiv.onclick = function (e) {
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e.cancelBubble = true;
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};
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navigationButtonsDivInner = document.createElement("div");
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navigationButtonsDivInner.className = "inappbrowser-app-bar-inner";
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navigationButtonsDivInner.onclick = function (e) {
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e.cancelBubble = true;
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};
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backButton = document.createElement("div");
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backButton.innerText = "back";
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backButton.className = "app-bar-action action-back";
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backButton.addEventListener("click", function (e) {
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if (popup.canGoBack)
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popup.goBack();
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});
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forwardButton = document.createElement("div");
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forwardButton.innerText = "forward";
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forwardButton.className = "app-bar-action action-forward";
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forwardButton.addEventListener("click", function (e) {
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if (popup.canGoForward)
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popup.goForward();
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});
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closeButton = document.createElement("div");
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closeButton.innerText = "close";
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closeButton.className = "app-bar-action action-close";
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closeButton.addEventListener("click", function (e) {
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setTimeout(function () {
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IAB.close(navigationEventsCallback);
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}, 0);
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});
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if (!isWebViewAvailable) {
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// iframe navigation is not yet supported
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backButton.setAttribute("disabled", "true");
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forwardButton.setAttribute("disabled", "true");
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}
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navigationButtonsDivInner.appendChild(backButton);
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navigationButtonsDivInner.appendChild(forwardButton);
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navigationButtonsDivInner.appendChild(closeButton);
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navigationButtonsDiv.appendChild(navigationButtonsDivInner);
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browserWrap.appendChild(navigationButtonsDiv);
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} else {
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popup.style.height = "100%";
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}
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// start listening for navigation events
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attachNavigationEvents(popup, navigationEventsCallback);
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if (isWebViewAvailable) {
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strUrl = strUrl.replace("ms-appx://", "ms-appx-web://");
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}
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popup.src = strUrl;
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}
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});
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},
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injectScriptCode: function (win, fail, args) {
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setImmediate(function () {
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var code = args[0],
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hasCallback = args[1];
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if (isWebViewAvailable && browserWrap && popup) {
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var op = popup.invokeScriptAsync("eval", code);
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op.oncomplete = function (e) {
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if (hasCallback) {
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// return null if event target is unavailable by some reason
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var result = (e && e.target) ? [e.target.result] : [null];
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win(result);
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}
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};
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op.onerror = function () { };
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op.start();
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}
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});
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},
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injectScriptFile: function (win, fail, args) {
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setImmediate(function () {
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var filePath = args[0],
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hasCallback = args[1];
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if (!!filePath) {
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filePath = urlutil.makeAbsolute(filePath);
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}
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if (isWebViewAvailable && browserWrap && popup) {
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var uri = new Windows.Foundation.Uri(filePath);
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Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done(function (file) {
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Windows.Storage.FileIO.readTextAsync(file).done(function (code) {
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var op = popup.invokeScriptAsync("eval", code);
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op.oncomplete = function(e) {
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if (hasCallback) {
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var result = [e.target.result];
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win(result);
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}
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};
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op.onerror = function () { };
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op.start();
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});
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});
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}
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});
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},
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injectStyleCode: function (win, fail, args) {
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setImmediate(function () {
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var code = args[0],
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hasCallback = args[1];
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if (isWebViewAvailable && browserWrap && popup) {
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injectCSS(popup, code, hasCallback && win);
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}
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});
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},
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injectStyleFile: function (win, fail, args) {
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setImmediate(function () {
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var filePath = args[0],
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hasCallback = args[1];
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filePath = filePath && urlutil.makeAbsolute(filePath);
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if (isWebViewAvailable && browserWrap && popup) {
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var uri = new Windows.Foundation.Uri(filePath);
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Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).then(function (file) {
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return Windows.Storage.FileIO.readTextAsync(file);
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}).done(function (code) {
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injectCSS(popup, code, hasCallback && win);
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}, function () {
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// no-op, just catch an error
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});
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}
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});
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}
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};
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function injectCSS (webView, cssCode, callback) {
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// This will automatically escape all thing that we need (quotes, slashes, etc.)
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var escapedCode = JSON.stringify(cssCode);
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var evalWrapper = "(function(d){var c=d.createElement('style');c.innerHTML=%s;d.head.appendChild(c);})(document)"
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.replace('%s', escapedCode);
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var op = webView.invokeScriptAsync("eval", evalWrapper);
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op.oncomplete = function() {
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if (callback) {
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callback([]);
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}
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};
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op.onerror = function () { };
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op.start();
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}
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module.exports = IAB;
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require("cordova/exec/proxy").add("InAppBrowser", module.exports);
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