The Tor Browser / file comparison
comparison: b2g/components/HelperAppDialog.js
b2g/components/HelperAppDialog.js
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
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| -1:000000000000 | 0:d4204dd38385 |
|---|---|
| 1 // -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*- | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components; | |
| 7 | |
| 8 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 9 Cu.import("resource://gre/modules/Services.jsm"); | |
| 10 | |
| 11 XPCOMUtils.defineLazyModuleGetter(this, "Downloads", | |
| 12 "resource://gre/modules/Downloads.jsm"); | |
| 13 | |
| 14 XPCOMUtils.defineLazyModuleGetter(this, "Task", | |
| 15 "resource://gre/modules/Task.jsm"); | |
| 16 | |
| 17 // ----------------------------------------------------------------------- | |
| 18 // HelperApp Launcher Dialog | |
| 19 // | |
| 20 // For now on b2g we never prompt and just download to the default | |
| 21 // location. | |
| 22 // | |
| 23 // ----------------------------------------------------------------------- | |
| 24 | |
| 25 function HelperAppLauncherDialog() { } | |
| 26 | |
| 27 HelperAppLauncherDialog.prototype = { | |
| 28 classID: Components.ID("{710322af-e6ae-4b0c-b2c9-1474a87b077e}"), | |
| 29 QueryInterface: XPCOMUtils.generateQI([Ci.nsIHelperAppLauncherDialog]), | |
| 30 | |
| 31 show: function(aLauncher, aContext, aReason) { | |
| 32 aLauncher.MIMEInfo.preferredAction = Ci.nsIMIMEInfo.saveToDisk; | |
| 33 aLauncher.saveToDisk(null, false); | |
| 34 }, | |
| 35 | |
| 36 promptForSaveToFile: function(aLauncher, | |
| 37 aContext, | |
| 38 aDefaultFile, | |
| 39 aSuggestedFileExt, | |
| 40 aForcePrompt) { | |
| 41 throw Cr.NS_ERROR_NOT_AVAILABLE; | |
| 42 }, | |
| 43 | |
| 44 promptForSaveToFileAsync: function(aLauncher, | |
| 45 aContext, | |
| 46 aDefaultFile, | |
| 47 aSuggestedFileExt, | |
| 48 aForcePrompt) { | |
| 49 // Retrieve the user's default download directory. | |
| 50 Task.spawn(function() { | |
| 51 let file = null; | |
| 52 try { | |
| 53 let defaultFolder = yield Downloads.getPreferredDownloadsDirectory(); | |
| 54 let dir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); | |
| 55 dir.initWithPath(defaultFolder); | |
| 56 file = this.validateLeafName(dir, aDefaultFile, aSuggestedFileExt); | |
| 57 } catch(e) { } | |
| 58 aLauncher.saveDestinationAvailable(file); | |
| 59 }.bind(this)).then(null, Cu.reportError); | |
| 60 }, | |
| 61 | |
| 62 validateLeafName: function(aLocalFile, aLeafName, aFileExt) { | |
| 63 if (!(aLocalFile && this.isUsableDirectory(aLocalFile))) | |
| 64 return null; | |
| 65 | |
| 66 // Remove any leading periods, since we don't want to save hidden files | |
| 67 // automatically. | |
| 68 aLeafName = aLeafName.replace(/^\.+/, ""); | |
| 69 | |
| 70 if (aLeafName == "") | |
| 71 aLeafName = "unnamed" + (aFileExt ? "." + aFileExt : ""); | |
| 72 aLocalFile.append(aLeafName); | |
| 73 | |
| 74 this.makeFileUnique(aLocalFile); | |
| 75 return aLocalFile; | |
| 76 }, | |
| 77 | |
| 78 makeFileUnique: function(aLocalFile) { | |
| 79 try { | |
| 80 // Note - this code is identical to that in | |
| 81 // toolkit/content/contentAreaUtils.js. | |
| 82 // If you are updating this code, update that code too! We can't share code | |
| 83 // here since this is called in a js component. | |
| 84 let collisionCount = 0; | |
| 85 while (aLocalFile.exists()) { | |
| 86 collisionCount++; | |
| 87 if (collisionCount == 1) { | |
| 88 // Append "(2)" before the last dot in (or at the end of) the filename | |
| 89 // special case .ext.gz etc files so we don't wind up with .tar(2).gz | |
| 90 if (aLocalFile.leafName.match(/\.[^\.]{1,3}\.(gz|bz2|Z)$/i)) | |
| 91 aLocalFile.leafName = aLocalFile.leafName.replace(/\.[^\.]{1,3}\.(gz|bz2|Z)$/i, "(2)$&"); | |
| 92 else | |
| 93 aLocalFile.leafName = aLocalFile.leafName.replace(/(\.[^\.]*)?$/, "(2)$&"); | |
| 94 } | |
| 95 else { | |
| 96 // replace the last (n) in the filename with (n+1) | |
| 97 aLocalFile.leafName = aLocalFile.leafName.replace(/^(.*\()\d+\)/, "$1" + (collisionCount+1) + ")"); | |
| 98 } | |
| 99 } | |
| 100 aLocalFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0600); | |
| 101 } | |
| 102 catch (e) { | |
| 103 dump("*** exception in makeFileUnique: " + e + "\n"); | |
| 104 | |
| 105 if (e.result == Cr.NS_ERROR_FILE_ACCESS_DENIED) | |
| 106 throw e; | |
| 107 | |
| 108 if (aLocalFile.leafName == "" || aLocalFile.isDirectory()) { | |
| 109 aLocalFile.append("unnamed"); | |
| 110 if (aLocalFile.exists()) | |
| 111 aLocalFile.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0600); | |
| 112 } | |
| 113 } | |
| 114 }, | |
| 115 | |
| 116 isUsableDirectory: function(aDirectory) { | |
| 117 return aDirectory.exists() && | |
| 118 aDirectory.isDirectory() && | |
| 119 aDirectory.isWritable(); | |
| 120 }, | |
| 121 }; | |
| 122 | |
| 123 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([HelperAppLauncherDialog]); |
