RetroZilla/toolkit/components/filepicker/content/filepicker.js

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2015-10-21 05:03:22 +02:00
# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is mozilla.org code.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 2000
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Stuart Parmenter <pavlov@netscape.com>
# Brian Ryner <bryner@brianryner.com>
# Jan Varga <varga@nixcorp.com>
# Peter Annema <disttsc@bart.nl>
# Johann Petrak <johann@ai.univie.ac.at>
# Akkana Peck <akkana@netscape.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
const nsIFilePicker = Components.interfaces.nsIFilePicker;
const nsIDirectoryServiceProvider = Components.interfaces.nsIDirectoryServiceProvider;
const nsIDirectoryServiceProvider_CONTRACTID = "@mozilla.org/file/directory_service;1";
const nsITreeBoxObject = Components.interfaces.nsITreeBoxObject;
const nsIFileView = Components.interfaces.nsIFileView;
const nsFileView_CONTRACTID = "@mozilla.org/filepicker/fileview;1";
const nsITreeView = Components.interfaces.nsITreeView;
const nsILocalFile = Components.interfaces.nsILocalFile;
const nsIFile = Components.interfaces.nsIFile;
const nsLocalFile_CONTRACTID = "@mozilla.org/file/local;1";
const nsIPromptService_CONTRACTID = "@mozilla.org/embedcomp/prompt-service;1";
var sfile = Components.classes[nsLocalFile_CONTRACTID].createInstance(nsILocalFile);
var retvals;
var filePickerMode;
var homeDir;
var treeView;
var textInput;
var okButton;
var gFilePickerBundle;
// name of new directory entered by the user to be remembered
// for next call of newDir() in case something goes wrong with creation
var gNewDirName = { value: "" };
function filepickerLoad() {
gFilePickerBundle = document.getElementById("bundle_filepicker");
textInput = document.getElementById("textInput");
okButton = document.documentElement.getButton("accept");
treeView = Components.classes[nsFileView_CONTRACTID].createInstance(nsIFileView);
if (window.arguments) {
var o = window.arguments[0];
retvals = o.retvals; /* set this to a global var so we can set return values */
const title = o.title;
filePickerMode = o.mode;
if (o.displayDirectory) {
const directory = o.displayDirectory.path;
}
const initialText = o.defaultString;
const filterTitles = o.filters.titles;
const filterTypes = o.filters.types;
const numFilters = filterTitles.length;
document.title = title;
if (initialText) {
textInput.value = initialText;
}
}
if (filePickerMode != nsIFilePicker.modeOpen && filePickerMode != nsIFilePicker.modeOpenMultiple) {
var newDirButton = document.getElementById("newDirButton");
newDirButton.removeAttribute("hidden");
}
if (filePickerMode == nsIFilePicker.modeGetFolder) {
var textInputLabel = document.getElementById("textInputLabel");
textInputLabel.value = gFilePickerBundle.getString("dirTextInputLabel");
}
if ((filePickerMode == nsIFilePicker.modeOpen) ||
(filePickerMode == nsIFilePicker.modeOpenMultiple) ||
(filePickerMode == nsIFilePicker.modeSave)) {
/* build filter popup */
var filterPopup = document.createElement("menupopup");
for (var i = 0; i < numFilters; i++) {
var menuItem = document.createElement("menuitem");
if (filterTypes[i] == "..apps")
menuItem.setAttribute("label", filterTitles[i]);
else
menuItem.setAttribute("label", filterTitles[i] + " (" + filterTypes[i] + ")");
menuItem.setAttribute("filters", filterTypes[i]);
filterPopup.appendChild(menuItem);
}
var filterMenuList = document.getElementById("filterMenuList");
filterMenuList.appendChild(filterPopup);
if (numFilters > 0)
filterMenuList.selectedIndex = 0;
var filterBox = document.getElementById("filterBox");
filterBox.removeAttribute("hidden");
filterMenuList.selectedIndex = o.filterIndex;
treeView.setFilter(filterTypes[o.filterIndex]);
} else if (filePickerMode == nsIFilePicker.modeGetFolder) {
treeView.showOnlyDirectories = true;
}
// set up the right icon
if (filePickerMode == nsIFilePicker.modeSave)
okButton.setAttribute("icon","save");
else
okButton.setAttribute("icon","open");
// start out with a filename sort
handleColumnClick("FilenameColumn");
document.documentElement.setAttribute("ondialogcancel", "return onCancel();");
try {
setOKAction();
} catch (exception) {
// keep it set to "OK"
}
// setup the dialogOverlay.xul button handlers
retvals.buttonStatus = nsIFilePicker.returnCancel;
var tree = document.getElementById("directoryTree");
if (filePickerMode == nsIFilePicker.modeOpenMultiple)
tree.removeAttribute("seltype");
tree.treeBoxObject.view = treeView;
// Start out with the ok button disabled since nothing will be
// selected and nothing will be in the text field.
okButton.disabled = true;
textInput.focus();
// This allows the window to show onscreen before we begin
// loading the file list
setTimeout(setInitialDirectory, 0, directory);
}
function setInitialDirectory(directory)
{
// get the home dir
var dirServiceProvider = Components.classes[nsIDirectoryServiceProvider_CONTRACTID]
.getService(nsIDirectoryServiceProvider);
var persistent = new Object();
homeDir = dirServiceProvider.getFile("Home", persistent);
if (directory) {
sfile.initWithPath(directory);
}
if (!directory || !(sfile.exists() && sfile.isDirectory())) {
// Start in the user's home directory
sfile.initWithPath(homeDir.path);
}
gotoDirectory(sfile);
}
function onFilterChanged(target)
{
// Do this on a timeout callback so the filter list can roll up
// and we don't keep the mouse grabbed while we are refiltering.
setTimeout(changeFilter, 0, target.getAttribute("filters"));
}
function changeFilter(filterTypes)
{
window.setCursor("wait");
treeView.setFilter(filterTypes);
window.setCursor("auto");
}
function showErrorDialog(titleStrName, messageStrName, file)
{
var errorTitle =
gFilePickerBundle.getFormattedString(titleStrName, [file.path]);
var errorMessage =
gFilePickerBundle.getFormattedString(messageStrName, [file.path]);
var promptService =
Components.classes[nsIPromptService_CONTRACTID].getService(Components.interfaces.nsIPromptService);
promptService.alert(window, errorTitle, errorMessage);
}
function openOnOK()
{
var dir = treeView.selectedFiles.queryElementAt(0, nsIFile);
if (!dir.isReadable()) {
showErrorDialog("errorOpenFileDoesntExistTitle",
"errorDirNotReadableMessage",
dir);
return false;
}
if (dir)
gotoDirectory(dir);
retvals.fileList = new Array(dir);
retvals.buttonStatus = nsIFilePicker.returnCancel;
var filterMenuList = document.getElementById("filterMenuList");
retvals.filterIndex = filterMenuList.selectedIndex;
return false;
}
function selectOnOK()
{
var errorTitle, errorMessage, promptService;
var ret = nsIFilePicker.returnOK;
var isDir = false;
var isFile = false;
var fileList = processPath(textInput.value);
if (!fileList) { // generic error message, should probably never happen
showErrorDialog("errorPathProblemTitle",
"errorPathProblemMessage",
textInput.value);
return false;
}
var curFileIndex;
for (curFileIndex = 0; curFileIndex < fileList.length &&
ret != nsIFilePicker.returnCancel; ++curFileIndex) {
var file = fileList[curFileIndex].QueryInterface(nsIFile);
// try to normalize - if this fails we will ignore the error
// because we will notice the
// error later and show a fitting error alert.
try{
file.normalize();
} catch(e) {
//promptService.alert(window, "Problem", "normalize failed, continuing");
}
var fileExists = file.exists();
if (!fileExists && (filePickerMode == nsIFilePicker.modeOpen ||
filePickerMode == nsIFilePicker.modeOpenMultiple)) {
showErrorDialog("errorOpenFileDoesntExistTitle",
"errorOpenFileDoesntExistMessage",
file);
return false;
}
if (!fileExists && filePickerMode == nsIFilePicker.modeGetFolder) {
showErrorDialog("errorDirDoesntExistTitle",
"errorDirDoesntExistMessage",
file);
return false;
}
if (fileExists) {
isDir = file.isDirectory();
isFile = file.isFile();
}
switch(filePickerMode) {
case nsIFilePicker.modeOpen:
case nsIFilePicker.modeOpenMultiple:
if (isFile) {
if (file.isReadable()) {
retvals.directory = file.parent.path;
} else {
showErrorDialog("errorOpeningFileTitle",
"openWithoutPermissionMessage_file",
file);
ret = nsIFilePicker.returnCancel;
}
} else if (isDir) {
if (!sfile.equals(file)) {
gotoDirectory(file);
}
textInput.value = "";
doEnabling();
ret = nsIFilePicker.returnCancel;
}
break;
case nsIFilePicker.modeSave:
if (isFile) { // can only be true if file.exists()
if (!file.isWritable()) {
showErrorDialog("errorSavingFileTitle",
"saveWithoutPermissionMessage_file",
file);
ret = nsIFilePicker.returnCancel;
} else {
// we need to pop up a dialog asking if you want to save
var confirmTitle = gFilePickerBundle.getString("confirmTitle");
var message =
gFilePickerBundle.getFormattedString("confirmFileReplacing",
[file.path]);
promptService = Components.classes[nsIPromptService_CONTRACTID].getService(Components.interfaces.nsIPromptService);
var rv = promptService.confirm(window, title, message);
if (rv) {
ret = nsIFilePicker.returnReplace;
retvals.directory = file.parent.path;
} else {
ret = nsIFilePicker.returnCancel;
}
}
} else if (isDir) {
if (!sfile.equals(file)) {
gotoDirectory(file);
}
textInput.value = "";
doEnabling();
ret = nsIFilePicker.returnCancel;
} else {
var parent = file.parent;
if (parent.exists() && parent.isDirectory() && parent.isWritable()) {
retvals.directory = parent.path;
} else {
var oldParent = parent;
while (!parent.exists()) {
oldParent = parent;
parent = parent.parent;
}
errorTitle =
gFilePickerBundle.getFormattedString("errorSavingFileTitle",
[file.path]);
if (parent.isFile()) {
errorMessage =
gFilePickerBundle.getFormattedString("saveParentIsFileMessage",
[parent.path, file.path]);
} else {
errorMessage =
gFilePickerBundle.getFormattedString("saveParentDoesntExistMessage",
[oldParent.path, file.path]);
}
if (!parent.isWritable()) {
errorMessage =
gFilePickerBundle.getFormattedString("saveWithoutPermissionMessage_dir", [parent.path]);
}
promptService = Components.classes[nsIPromptService_CONTRACTID].getService(Components.interfaces.nsIPromptService);
promptService.alert(window, errorTitle, errorMessage);
ret = nsIFilePicker.returnCancel;
}
}
break;
case nsIFilePicker.modeGetFolder:
if (isDir) {
retvals.directory = file.parent.path;
} else { // if nothing selected, the current directory will be fine
retvals.directory = sfile.path;
}
break;
}
}
gFilesEnumerator.mFiles = fileList;
retvals.files = gFilesEnumerator;
retvals.buttonStatus = ret;
var filterMenuList = document.getElementById("filterMenuList");
retvals.filterIndex = filterMenuList.selectedIndex;
return (ret != nsIFilePicker.returnCancel);
}
var gFilesEnumerator = {
mFiles: null,
mIndex: 0,
hasMoreElements: function()
{
return (this.mIndex < this.mFiles.length);
},
getNext: function()
{
if (this.mIndex >= this.mFiles.length)
throw Components.results.NS_ERROR_FAILURE;
return this.mFiles[this.mIndex++];
}
};
function onCancel()
{
// Close the window.
retvals.buttonStatus = nsIFilePicker.returnCancel;
retvals.file = null;
retvals.files = null;
return true;
}
function onDblClick(e) {
// we only care about button 0 (left click) events
if (e.button != 0) return;
var t = e.originalTarget;
if (t.localName != "treechildren")
return;
openSelectedFile();
}
function openSelectedFile() {
var fileList = treeView.selectedFiles;
if (fileList.length == 0)
return;
var file = fileList.queryElementAt(0, nsIFile);
if (file.isDirectory())
gotoDirectory(file);
else if (file.isFile())
document.documentElement.acceptDialog();
}
function onClick(e) {
var t = e.originalTarget;
if (t.localName == "treecol")
handleColumnClick(t.id);
}
function convertColumnIDtoSortType(columnID) {
var sortKey;
switch (columnID) {
case "FilenameColumn":
sortKey = nsIFileView.sortName;
break;
case "FileSizeColumn":
sortKey = nsIFileView.sortSize;
break;
case "LastModifiedColumn":
sortKey = nsIFileView.sortDate;
break;
default:
dump("unsupported sort column: " + columnID + "\n");
sortKey = 0;
break;
}
return sortKey;
}
function handleColumnClick(columnID) {
var sortType = convertColumnIDtoSortType(columnID);
var sortOrder = (treeView.sortType == sortType) ? !treeView.reverseSort : false;
treeView.sort(sortType, sortOrder);
// set the sort indicator on the column we are sorted by
var sortedColumn = document.getElementById(columnID);
if (treeView.reverseSort) {
sortedColumn.setAttribute("sortDirection", "descending");
} else {
sortedColumn.setAttribute("sortDirection", "ascending");
}
// remove the sort indicator from the rest of the columns
var currCol = sortedColumn.parentNode.firstChild;
while (currCol) {
if (currCol != sortedColumn && currCol.localName == "treecol")
currCol.removeAttribute("sortDirection");
currCol = currCol.nextSibling;
}
}
function onKeypress(e) {
if (e.keyCode == 8) /* backspace */
goUp();
/* enter is handled by the ondialogaccept handler */
}
function doEnabling() {
// Maybe add check if textInput.value would resolve to an existing
// file or directory in .modeOpen. Too costly I think.
var enable = (textInput.value != "");
okButton.disabled = !enable;
}
function onTreeFocus(event) {
// Reset the button label and enabled/disabled state.
onFileSelected(treeView.selectedFiles);
}
function setOKAction(file) {
var buttonLabel;
var buttonIcon = "open"; // used in all but one case
if (file && file.isDirectory() && filePickerMode != nsIFilePicker.modeGetFolder) {
document.documentElement.setAttribute("ondialogaccept", "return openOnOK();");
buttonLabel = gFilePickerBundle.getString("openButtonLabel");
}
else {
document.documentElement.setAttribute("ondialogaccept", "return selectOnOK();");
switch(filePickerMode) {
case nsIFilePicker.modeGetFolder:
buttonLabel = gFilePickerBundle.getString("selectFolderButtonLabel");
break;
case nsIFilePicker.modeOpen:
case nsIFilePicker.modeOpenMultiple:
buttonLabel = gFilePickerBundle.getString("openButtonLabel");
break;
case nsIFilePicker.modeSave:
buttonLabel = gFilePickerBundle.getString("saveButtonLabel");
buttonIcon = "save";
break;
}
}
okButton.setAttribute("label", buttonLabel);
okButton.setAttribute("icon", buttonIcon);
}
function onSelect(event) {
onFileSelected(treeView.selectedFiles);
}
function onFileSelected(/* nsIArray */ selectedFileList) {
var validFileSelected = false;
var invalidSelection = false;
var file;
var fileCount = selectedFileList.length;
for (var index = 0; index < fileCount; ++index) {
file = selectedFileList.queryElementAt(index, nsIFile);
if (file) {
var path = file.leafName;
if (path) {
var isDir = file.isDirectory();
if ((filePickerMode == nsIFilePicker.modeGetFolder) || !isDir) {
if (!validFileSelected)
textInput.value = "";
addToTextFieldValue(path);
}
if (isDir && fileCount > 1) {
// The user has selected multiple items, and one of them is
// a directory. This is not a valid state, so we'll disable
// the ok button.
invalidSelection = true;
}
validFileSelected = true;
}
}
}
if (validFileSelected) {
setOKAction(file);
okButton.disabled = invalidSelection;
} else
okButton.disabled = (textInput.value == "");
}
function addToTextFieldValue(path)
{
var newValue = "";
if (textInput.value == "")
newValue = path.replace(/\"/g, "\\\"");
else {
// Quote the existing text if needed,
// then append the new filename (quoted and escaped)
if (textInput.value[0] != '"')
newValue = '"' + textInput.value.replace(/\"/g, "\\\"") + '"';
else
newValue = textInput.value;
newValue = newValue + ' "' + path.replace(/\"/g, "\\\"") + '"';
}
textInput.value = newValue;
}
function onTextFieldFocus() {
setOKAction(null);
doEnabling();
}
function onDirectoryChanged(target)
{
var path = target.getAttribute("label");
var file = Components.classes[nsLocalFile_CONTRACTID].createInstance(nsILocalFile);
file.initWithPath(path);
if (!sfile.equals(file)) {
// Do this on a timeout callback so the directory list can roll up
// and we don't keep the mouse grabbed while we are loading.
setTimeout(gotoDirectory, 0, file);
}
}
function populateAncestorList(directory) {
var menu = document.getElementById("lookInMenu");
while (menu.hasChildNodes()) {
menu.removeChild(menu.firstChild);
}
var menuItem = document.createElement("menuitem");
menuItem.setAttribute("label", directory.path);
menuItem.setAttribute("crop", "start");
menu.appendChild(menuItem);
// .parent is _sometimes_ null, see bug 121489. Do a dance around that.
var parent = directory.parent;
while (parent && !parent.equals(directory)) {
menuItem = document.createElement("menuitem");
menuItem.setAttribute("label", parent.path);
menuItem.setAttribute("crop", "start");
menu.appendChild(menuItem);
directory = parent;
parent = directory.parent;
}
var menuList = document.getElementById("lookInMenuList");
menuList.selectedIndex = 0;
}
function goUp() {
try {
var parent = sfile.parent;
} catch(ex) { dump("can't get parent directory\n"); }
if (parent) {
gotoDirectory(parent);
}
}
function goHome() {
gotoDirectory(homeDir);
}
function newDir() {
var file;
var promptService =
Components.classes[nsIPromptService_CONTRACTID].getService(Components.interfaces.nsIPromptService);
var dialogTitle =
gFilePickerBundle.getString("promptNewDirTitle");
var dialogMsg =
gFilePickerBundle.getString("promptNewDirMessage");
var ret = promptService.prompt(window, dialogTitle, dialogMsg, gNewDirName, null, {value:0});
if (ret) {
file = processPath(gNewDirName.value);
if (!file) {
showErrorDialog("errorCreateNewDirTitle",
"errorCreateNewDirMessage",
file);
return false;
}
file = file[0].QueryInterface(nsIFile);
if (file.exists()) {
showErrorDialog("errorNewDirDoesExistTitle",
"errorNewDirDoesExistMessage",
file);
return false;
}
var parent = file.parent;
if (!(parent.exists() && parent.isDirectory() && parent.isWritable())) {
var oldParent = parent;
while (!parent.exists()) {
oldParent = parent;
parent = parent.parent;
}
if (parent.isFile()) {
showErrorDialog("errorCreateNewDirTitle",
"errorCreateNewDirIsFileMessage",
parent);
return false;
}
if (!parent.isWritable()) {
showErrorDialog("errorCreateNewDirTitle",
"errorCreateNewDirPermissionMessage",
parent);
return false;
}
}
try {
file.create(nsIFile.DIRECTORY_TYPE, 0755);
} catch (e) {
showErrorDialog("errorCreateNewDirTitle",
"errorCreateNewDirMessage",
file);
return false;
}
file.normalize(); // ... in case ".." was used in the path
gotoDirectory(file);
// we remember and reshow a dirname if something goes wrong
// so that errors can be corrected more easily. If all went well,
// reset the default value to blank
gNewDirName = { value: "" };
}
return true;
}
function gotoDirectory(directory) {
window.setCursor("wait");
try {
populateAncestorList(directory);
treeView.setDirectory(directory);
document.getElementById("errorShower").selectedIndex = 0;
} catch(ex) {
document.getElementById("errorShower").selectedIndex = 1;
}
window.setCursor("auto");
treeView.QueryInterface(nsITreeView).selection.clearSelection();
if (filePickerMode == nsIFilePicker.modeGetFolder) {
textInput.value = "";
}
textInput.focus();
textInput.setAttribute("autocompletesearchparam", directory.path);
sfile = directory;
}
function toggleShowHidden(event) {
treeView.showHiddenFiles = !treeView.showHiddenFiles;
}
// from the current directory and whatever was entered
// in the entry field, try to make a new path. This
// uses "/" as the directory seperator, "~" as a shortcut
// for the home directory (but only when seen at the start
// of a path), and ".." to denote the parent directory.
// returns an array of the files listed,
// or false if an error occurred.
function processPath(path)
{
var fileArray = new Array();
var strLength = path.length;
if (path[0] == '"' && filePickerMode == nsIFilePicker.modeOpenMultiple &&
strLength > 1) {
// we have a quoted list of filenames, separated by spaces.
// iterate the list and process each file.
var curFileStart = 1;
while (1) {
var nextQuote;
// Look for an unescaped quote
var quoteSearchStart = curFileStart + 1;
do {
nextQuote = path.indexOf('"', quoteSearchStart);
quoteSearchStart = nextQuote + 1;
} while (nextQuote != -1 && path[nextQuote - 1] == '\\');
if (nextQuote == -1) {
// we have a filename with no trailing quote.
// just assume that the filename ends at the end of the string.
if (!processPathEntry(path.substring(curFileStart), fileArray))
return false;
break;
}
if (!processPathEntry(path.substring(curFileStart, nextQuote), fileArray))
return false;
curFileStart = path.indexOf('"', nextQuote + 1);
if (curFileStart == -1) {
// no more quotes, but if we're not at the end of the string,
// go ahead and process the remaining text.
if (nextQuote < strLength - 1)
if (!processPathEntry(path.substring(nextQuote + 1), fileArray))
return false;
break;
}
++curFileStart;
}
} else {
// If we didn't start with a quote, assume we just have a single file.
if (!processPathEntry(path, fileArray))
return false;
}
return fileArray;
}
function processPathEntry(path, fileArray)
{
var filePath;
var file;
if (path[0] == '~')
filePath = homeDir.path + path.substring(1);
else
filePath = path;
// Unescape quotes
filePath = filePath.replace(/\\\"/g, "\"");
try{
file = sfile.clone().QueryInterface(nsILocalFile);
} catch(e) {
dump("Couldn't clone\n"+e);
return false;
}
if (filePath[0] == '/') /* an absolute path was entered */
file.initWithPath(filePath);
else if ((filePath.indexOf("/../") > 0) ||
(filePath.substr(-3) == "/..") ||
(filePath.substr(0,3) == "../") ||
(filePath == "..")) {
/* appendRelativePath doesn't allow .. */
try{
file.initWithPath(file.path + "/" + filePath);
} catch (e) {
dump("Couldn't init path\n"+e);
return false;
}
}
else {
try {
file.appendRelativePath(filePath);
} catch (e) {
dump("Couldn't append path\n"+e);
return false;
}
}
fileArray[fileArray.length] = file;
return true;
}