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authorThomas Groman <tgroman@nuegia.net>2020-04-20 20:49:37 -0700
committerThomas Groman <tgroman@nuegia.net>2020-04-20 20:49:37 -0700
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parentf428692de8b59ab89a66502c079e1823dfda8aeb (diff)
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move browser to webbrowser/
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-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*
- * This module is imported by code that uses the "download.xml" binding, and
- * provides prototypes for objects that handle input and display information.
- */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = [
- "DownloadsViewUI",
-];
-
-const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadUtils",
- "resource://gre/modules/DownloadUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
- "resource:///modules/DownloadsCommon.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "OS",
- "resource://gre/modules/osfile.jsm");
-
-this.DownloadsViewUI = {};
-
-/**
- * A download element shell is responsible for handling the commands and the
- * displayed data for a single element that uses the "download.xml" binding.
- *
- * The information to display is obtained through the associated Download object
- * from the JavaScript API for downloads, and commands are executed using a
- * combination of Download methods and DownloadsCommon.jsm helper functions.
- *
- * Specialized versions of this shell must be defined, and they are required to
- * implement the "download" property or getter. Currently these objects are the
- * HistoryDownloadElementShell and the DownloadsViewItem for the panel. The
- * history view may use a HistoryDownload object in place of a Download object.
- */
-this.DownloadsViewUI.DownloadElementShell = function () {}
-
-this.DownloadsViewUI.DownloadElementShell.prototype = {
- /**
- * The richlistitem for the download, initialized by the derived object.
- */
- element: null,
-
- /**
- * URI string for the file type icon displayed in the download element.
- */
- get image() {
- if (!this.download.target.path) {
- // Old history downloads may not have a target path.
- return "moz-icon://.unknown?size=32";
- }
-
- // When a download that was previously in progress finishes successfully, it
- // means that the target file now exists and we can extract its specific
- // icon, for example from a Windows executable. To ensure that the icon is
- // reloaded, however, we must change the URI used by the XUL image element,
- // for example by adding a query parameter. This only works if we add one of
- // the parameters explicitly supported by the nsIMozIconURI interface.
- return "moz-icon://" + this.download.target.path + "?size=32" +
- (this.download.succeeded ? "&state=normal" : "");
- },
-
- /**
- * The user-facing label for the download. This is normally the leaf name of
- * the download target file. In case this is a very old history download for
- * which the target file is unknown, the download source URI is displayed.
- */
- get displayName() {
- if (!this.download.target.path) {
- return this.download.source.url;
- }
- return OS.Path.basename(this.download.target.path);
- },
-
- get extendedDisplayName() {
- let s = DownloadsCommon.strings;
- let referrer = this.download.source.referrer ||
- this.download.source.url;
- let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
- return s.statusSeparator(this.displayName, displayHost);
- },
-
- get extendedDisplayNameTip() {
- let s = DownloadsCommon.strings;
- let referrer = this.download.source.referrer ||
- this.download.source.url;
- let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
- return s.statusSeparator(this.displayName, fullHost);
- },
-
- /**
- * The progress element for the download, or undefined in case the XBL binding
- * has not been applied yet.
- */
- get _progressElement() {
- if (!this.__progressElement) {
- // If the element is not available now, we will try again the next time.
- this.__progressElement =
- this.element.ownerDocument.getAnonymousElementByAttribute(
- this.element, "anonid",
- "progressmeter");
- }
- return this.__progressElement;
- },
-
- /**
- * Processes a major state change in the user interface, then proceeds with
- * the normal progress update. This function is not called for every progress
- * update in order to improve performance.
- */
- _updateState() {
- this.element.setAttribute("displayName", this.displayName);
- this.element.setAttribute("extendedDisplayName", this.extendedDisplayName);
- this.element.setAttribute("extendedDisplayNameTip", this.extendedDisplayNameTip);
- this.element.setAttribute("image", this.image);
- this.element.setAttribute("state",
- DownloadsCommon.stateOfDownload(this.download));
-
- // Since state changed, reset the time left estimation.
- this.lastEstimatedSecondsLeft = Infinity;
-
- this._updateProgress();
- },
-
- /**
- * Updates the elements that change regularly for in-progress downloads,
- * namely the progress bar and the status line.
- */
- _updateProgress() {
- if (this.download.succeeded) {
- // We only need to add or remove this attribute for succeeded downloads.
- if (this.download.target.exists) {
- this.element.setAttribute("exists", "true");
- } else {
- this.element.removeAttribute("exists");
- }
- }
-
- // The progress bar is only displayed for in-progress downloads.
- if (this.download.hasProgress) {
- this.element.setAttribute("progressmode", "normal");
- this.element.setAttribute("progress", this.download.progress);
- } else {
- this.element.setAttribute("progressmode", "undetermined");
- }
-
- // Dispatch the ValueChange event for accessibility, if possible.
- if (this._progressElement) {
- let event = this.element.ownerDocument.createEvent("Events");
- event.initEvent("ValueChange", true, true);
- this._progressElement.dispatchEvent(event);
- }
-
- let status = this.statusTextAndTip;
- this.element.setAttribute("status", status.text);
- this.element.setAttribute("statusTip", status.tip);
- },
-
- lastEstimatedSecondsLeft: Infinity,
-
- /**
- * Returns the text for the status line and the associated tooltip. These are
- * returned by a single property because they are computed together. The
- * result may be overridden by derived objects.
- */
- get statusTextAndTip() this.rawStatusTextAndTip,
-
- /**
- * Derived objects may call this to get the status text.
- */
- get rawStatusTextAndTip() {
- const nsIDM = Ci.nsIDownloadManager;
- let s = DownloadsCommon.strings;
-
- let text = "";
- let tip = "";
-
- if (!this.download.stopped) {
- let totalBytes = this.download.hasProgress ? this.download.totalBytes
- : -1;
- // By default, extended status information including the individual
- // download rate is displayed in the tooltip. The history view overrides
- // the getter and displays the datails in the main area instead.
- [text] = DownloadUtils.getDownloadStatusNoRate(
- this.download.currentBytes,
- totalBytes,
- this.download.speed,
- this.lastEstimatedSecondsLeft);
- let newEstimatedSecondsLeft;
- [tip, newEstimatedSecondsLeft] = DownloadUtils.getDownloadStatus(
- this.download.currentBytes,
- totalBytes,
- this.download.speed,
- this.lastEstimatedSecondsLeft);
- this.lastEstimatedSecondsLeft = newEstimatedSecondsLeft;
- } else if (this.download.canceled && this.download.hasPartialData) {
- let totalBytes = this.download.hasProgress ? this.download.totalBytes
- : -1;
- let transfer = DownloadUtils.getTransferTotal(this.download.currentBytes,
- totalBytes);
-
- // We use the same XUL label to display both the state and the amount
- // transferred, for example "Paused - 1.1 MB".
- text = s.statusSeparatorBeforeNumber(s.statePaused, transfer);
- } else if (!this.download.succeeded && !this.download.canceled &&
- !this.download.error) {
- text = s.stateStarting;
- } else {
- let stateLabel;
-
- if (this.download.succeeded) {
- // For completed downloads, show the file size (e.g. "1.5 MB").
- if (this.download.target.size !== undefined) {
- let [size, unit] =
- DownloadUtils.convertByteUnits(this.download.target.size);
- stateLabel = s.sizeWithUnits(size, unit);
- } else {
- // History downloads may not have a size defined.
- stateLabel = s.sizeUnknown;
- }
- } else if (this.download.canceled) {
- stateLabel = s.stateCanceled;
- } else if (this.download.error.becauseBlockedByParentalControls) {
- stateLabel = s.stateBlockedParentalControls;
- } else if (this.download.error.becauseBlockedByReputationCheck) {
- stateLabel = s.stateDirty;
- } else {
- stateLabel = s.stateFailed;
- }
-
- let referrer = this.download.source.referrer || this.download.source.url;
- let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
-
- let date = new Date(this.download.endTime);
- let [displayDate, fullDate] = DownloadUtils.getReadableDates(date);
-
- let firstPart = s.statusSeparator(stateLabel, displayHost);
- text = s.statusSeparator(firstPart, displayDate);
- tip = s.statusSeparator(fullHost, fullDate);
- }
-
- return { text, tip: tip || text };
- },
-};