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RetroZilla/browser/components/preferences/downloadactions.js

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2015-10-21 05:03:22 +02:00
# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
# ***** 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 the Download Actions Manager.
#
# The Initial Developer of the Original Code is
# Ben Goodger.
# Portions created by the Initial Developer are Copyright (C) 2000-2005
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Ben Goodger <ben@mozilla.org>
#
# 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 kPluginHandlerContractID = "@mozilla.org/content/plugin/document-loader-factory;1";
const kDisabledPluginTypesPref = "plugin.disable_full_page_plugin_for_types";
const kShowPluginsInList = "browser.download.show_plugins_in_list";
const kHideTypesWithoutExtensions = "browser.download.hide_plugins_without_extensions";
const kRootTypePrefix = "urn:mimetype:";
///////////////////////////////////////////////////////////////////////////////
// MIME Types Datasource RDF Utils
function NC_URI(aProperty)
{
return "http://home.netscape.com/NC-rdf#" + aProperty;
}
function MIME_URI(aType)
{
return "urn:mimetype:" + aType;
}
function HANDLER_URI(aHandler)
{
return "urn:mimetype:handler:" + aHandler;
}
function APP_URI(aType)
{
return "urn:mimetype:externalApplication:" + aType;
}
var gDownloadActionsWindow = {
_tree : null,
_editButton : null,
_removeButton : null,
_actions : [],
_plugins : {},
_bundle : null,
_pref : Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch),
_mimeSvc : Components.classes["@mozilla.org/uriloader/external-helper-app-service;1"]
.getService(Components.interfaces.nsIMIMEService),
_excludingPlugins : false,
_excludingMissingExtensions : false,
init: function ()
{
(this._editButton = document.getElementById("editFileHandler")).disabled = true;
(this._removeButton = document.getElementById("removeFileHandler")).disabled = true;
if (this._pref instanceof Components.interfaces.nsIPrefBranchInternal) {
this._pref.addObserver(kShowPluginsInList, this, false);
this._pref.addObserver(kHideTypesWithoutExtensions, this, false);
}
// Initialize the File Type list
this._bundle = document.getElementById("bundlePreferences");
this._tree = document.getElementById("fileHandlersList");
this._loadView();
// Determine any exclusions being applied - e.g. don't show types for which
// only a plugin handler exists, don't show types lacking extensions, etc.
this._view._rowCount = this._updateExclusions();
this._tree.treeBoxObject.view = this._view;
var indexToSelect = parseInt(this._tree.getAttribute("lastSelected"));
if (indexToSelect < this._tree.view.rowCount)
this._tree.view.selection.select(indexToSelect);
this._tree.focus();
},
_loadView: function ()
{
// Reset ALL the collections and state flags, because we can call this after
// the window has initially displayed by resetting the filter.
this._actions = [];
this._plugins = {};
this._view._filtered = false;
this._view._filterSet = [];
this._view._usingExclusionSet = false;
this._view._exclusionSet = [];
this._view._filterValue = "";
this._loadPluginData();
this._loadMIMERegistryData();
},
_updateRowCount: function (aNewRowCount)
{
var oldCount = this._view._rowCount;
this._view._rowCount = 0;
this._tree.treeBoxObject.rowCountChanged(0, -oldCount);
this._view._rowCount = aNewRowCount;
this._tree.treeBoxObject.rowCountChanged(0, aNewRowCount);
},
uninit: function ()
{
if (this._pref instanceof Components.interfaces.nsIPrefBranchInternal) {
this._pref.removeObserver(kShowPluginsInList, this);
this._pref.removeObserver(kHideTypesWithoutExtensions, this);
}
},
observe: function (aSubject, aTopic, aData)
{
if (aTopic == "nsPref:changed" &&
(aData == kShowPluginsInList || aData == kHideTypesWithoutExtensions))
this._updateRowCount(this._updateExclusions());
},
_updateExclusions: function ()
{
this._excludingPlugins = !this._pref.getBoolPref(kShowPluginsInList);
this._excludingMissingExtensions = this._pref.getBoolPref(kHideTypesWithoutExtensions);
this._view._exclusionSet = [].concat(this._actions);
if (this._excludingMissingExtensions) {
this._view._usingExclusionSet = true;
for (var i = 0; i < this._view._exclusionSet.length;) {
if (!this._view._exclusionSet[i].hasExtension)
this._view._exclusionSet.splice(i, 1);
else
++i;
}
}
if (this._excludingPlugins) {
this._view._usingExclusionSet = true;
for (i = 0; i < this._view._exclusionSet.length;) {
if (this._view._exclusionSet[i].handledOnlyByPlugin)
this._view._exclusionSet.splice(i, 1);
else
++i
}
}
return this._view._usingExclusionSet ? this._view._exclusionSet.length
: this._view._filtered ? this._view._filterSet.length
: this._actions.length;
},
_loadPluginData: function ()
{
// Read enabled plugin type information from the category manager
var disabled = "";
if (this._pref.prefHasUserValue(kDisabledPluginTypesPref))
disabled = this._pref.getCharPref(kDisabledPluginTypesPref);
for (var i = 0; i < navigator.plugins.length; ++i) {
var plugin = navigator.plugins[i];
for (var j = 0; j < plugin.length; ++j) {
var actionName = this._bundle.getFormattedString("openWith", [plugin.name])
var type = plugin[j].type;
this._createAction(type, actionName, true, FILEACTION_OPEN_PLUGIN,
null, true, disabled.indexOf(type) == -1, true);
}
}
},
_createAction: function (aMIMEType, aActionName,
aIsEditable, aHandleMode, aCustomHandler,
aPluginAvailable, aPluginEnabled,
aHandledOnlyByPlugin)
{
var newAction = !(aMIMEType in this._plugins);
var action = newAction ? new FileAction() : this._plugins[aMIMEType];
action.type = aMIMEType;
var info = this._mimeSvc.getFromTypeAndExtension(action.type, null);
// File Extension
try {
action.extension = info.primaryExtension;
}
catch (e) {
action.extension = this._bundle.getString("extensionNone");
action.hasExtension = false;
}
// Large and Small Icon
try {
action.smallIcon = "moz-icon://goat." + info.primaryExtension + "?size=16";
action.bigIcon = "moz-icon://goat." + info.primaryExtension + "?size=32";
}
catch (e) {
action.smallIcon = "moz-icon://goat?size=16&contentType=" + info.MIMEType;
action.bigIcon = "moz-icon://goat?contentType=" + info.MIMEType + "&size=32";
}
// Pretty Type Name
if (info.description == "") {
try {
action.typeName = this._bundle.getFormattedString("fileEnding", [info.primaryExtension.toUpperCase()]);
}
catch (e) {
// Wow, this sucks, just show the MIME type as a last ditch effort to display
// the type of file that this is.
action.typeName = info.MIMEType;
}
}
else
action.typeName = info.description;
// Pretty Action Name
if (aActionName)
action.action = aActionName;
action.pluginAvailable = aPluginAvailable;
action.pluginEnabled = aPluginEnabled;
action.editable = aIsEditable;
action.handleMode = aHandleMode;
action.customHandler = aCustomHandler;
action.mimeInfo = info;
action.handledOnlyByPlugin = aHandledOnlyByPlugin
if (newAction && !(action.handledOnlyByPlugin && !action.pluginEnabled)) {
this._actions.push(action);
this._plugins[action.type] = action;
}
return action;
},
_loadMIMEDS: function ()
{
var fileLocator = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
var file = fileLocator.get("UMimTyp", Components.interfaces.nsIFile);
var ioService = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
var fileHandler = ioService.getProtocolHandler("file")
.QueryInterface(Components.interfaces.nsIFileProtocolHandler);
this._mimeDS = this._rdf.GetDataSourceBlocking(fileHandler.getURLSpecFromFile(file));
},
_getLiteralValue: function (aResource, aProperty)
{
var property = this._rdf.GetResource(NC_URI(aProperty));
var value = this._mimeDS.GetTarget(aResource, property, true);
if (value)
return value.QueryInterface(Components.interfaces.nsIRDFLiteral).Value;
return "";
},
_getChildResource: function (aResource, aProperty)
{
var property = this._rdf.GetResource(NC_URI(aProperty));
return this._mimeDS.GetTarget(aResource, property, true);
},
_getDisplayNameForFile: function (aFile)
{
#ifdef XP_WIN
if (aFile instanceof Components.interfaces.nsILocalFileWin) {
try {
return aFile.getVersionInfoField("FileDescription");
}
catch (e) {
// fall through to the filename
}
}
#endif
#ifdef XP_MACOSX
var lfm = aFile.QueryInterface(Components.interfaces.nsILocalFileMac_MOZILLA_1_8_BRANCH);
try {
return lfm.bundleDisplayName;
}
catch (e) {
// fall through to the file name
}
#endif
var ios = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
var url = ios.newFileURI(aFile).QueryInterface(Components.interfaces.nsIURL);
return url.fileName;
},
_loadMIMERegistryData: function ()
{
this._rdf = Components.classes["@mozilla.org/rdf/rdf-service;1"]
.getService(Components.interfaces.nsIRDFService);
this._loadMIMEDS();
var root = this._rdf.GetResource("urn:mimetypes:root");
var container = Components.classes["@mozilla.org/rdf/container;1"]
.createInstance(Components.interfaces.nsIRDFContainer);
container.Init(this._mimeDS, root);
var elements = container.GetElements();
while (elements.hasMoreElements()) {
var type = elements.getNext();
if (!(type instanceof Components.interfaces.nsIRDFResource))
break;
var editable = this._getLiteralValue(type, "editable") == "true";
if (!editable)
continue;
var handler = this._getChildResource(type, "handlerProp");
var alwaysAsk = this._getLiteralValue(handler, "alwaysAsk") == "true";
if (alwaysAsk)
continue;
var saveToDisk = this._getLiteralValue(handler, "saveToDisk") == "true";
var useSystemDefault = this._getLiteralValue(handler, "useSystemDefault") == "true";
var editable = this._getLiteralValue(type, "editable") == "true";
var handledInternally = this._getLiteralValue(handler, "handleInternal") == "true";
var externalApp = this._getChildResource(handler, "externalApplication");
var externalAppPath = this._getLiteralValue(externalApp, "path");
try {
var customHandler = Components.classes["@mozilla.org/file/local;1"]
.createInstance(Components.interfaces.nsILocalFile);
customHandler.initWithPath(externalAppPath);
}
catch (e) {
customHandler = null;
}
if (customHandler && !customHandler.exists())
customHandler = null;
var mimeType = this._getLiteralValue(type, "value");
var typeInfo = this._mimeSvc.getFromTypeAndExtension(mimeType, null);
// Determine the pretty name of the associated action.
var actionName = "";
var handleMode = 0;
if (saveToDisk) {
// Save the file to disk
actionName = this._bundle.getString("saveToDisk");
handleMode = FILEACTION_SAVE_TO_DISK;
}
else if (useSystemDefault) {
// Use the System Default handler
actionName = this._bundle.getFormattedString("openWith",
[typeInfo.defaultDescription]);
handleMode = FILEACTION_OPEN_DEFAULT;
}
else {
// Custom Handler
if (customHandler) {
actionName = this._bundle.getFormattedString("openWith",
[this._getDisplayNameForFile(customHandler)]);
handleMode = FILEACTION_OPEN_CUSTOM;
}
else {
// Corrupt datasource, invalid custom handler path. Revert to default.
actionName = this._bundle.getFormattedString("openWith",
[typeInfo.defaultDescription]);
handleMode = FILEACTION_OPEN_DEFAULT;
}
}
if (handledInternally)
handleMode = FILEACTION_OPEN_INTERNALLY;
var pluginAvailable = mimeType in this._plugins && this._plugins[mimeType].pluginAvailable;
var pluginEnabled = pluginAvailable && this._plugins[mimeType].pluginEnabled;
if (pluginEnabled) {
handleMode = FILEACTION_OPEN_PLUGIN;
actionName = null;
}
var action = this._createAction(mimeType, actionName, editable, handleMode,
customHandler, pluginAvailable, pluginEnabled,
false);
}
},
_view: {
_filtered : false,
_filterSet : [],
_usingExclusionSet : false,
_exclusionSet : [],
_filterValue : "",
_rowCount: 0,
get rowCount()
{
return this._rowCount;
},
get activeCollection ()
{
return this._filtered ? this._filterSet
: this._usingExclusionSet ? this._exclusionSet
: gDownloadActionsWindow._actions;
},
getItemAtIndex: function (aIndex)
{
return this.activeCollection[aIndex];
},
getCellText: function (aIndex, aColumn)
{
switch (aColumn.id) {
case "fileExtension":
return this.getItemAtIndex(aIndex).extension.toUpperCase();
case "fileType":
return this.getItemAtIndex(aIndex).typeName;
case "fileMIMEType":
return this.getItemAtIndex(aIndex).type;
case "fileHandler":
return this.getItemAtIndex(aIndex).action;
}
return "";
},
getImageSrc: function (aIndex, aColumn)
{
if (aColumn.id == "fileExtension")
return this.getItemAtIndex(aIndex).smallIcon;
return "";
},
_selection: null,
get selection () { return this._selection; },
set selection (val) { this._selection = val; return val; },
getRowProperties: function (aIndex, aProperties) {},
getCellProperties: function (aIndex, aColumn, aProperties) {},
getColumnProperties: function (aColumn, aProperties) {},
isContainer: function (aIndex) { return false; },
isContainerOpen: function (aIndex) { return false; },
isContainerEmpty: function (aIndex) { return false; },
isSeparator: function (aIndex) { return false; },
isSorted: function (aIndex) { return false; },
canDrop: function (aIndex, aOrientation) { return false; },
drop: function (aIndex, aOrientation) {},
getParentIndex: function (aIndex) { return -1; },
hasNextSibling: function (aParentIndex, aIndex) { return false; },
getLevel: function (aIndex) { return 0; },
getProgressMode: function (aIndex, aColumn) {},
getCellValue: function (aIndex, aColumn) {},
setTree: function (aTree) {},
toggleOpenState: function (aIndex) { },
cycleHeader: function (aColumn) {},
selectionChanged: function () {},
cycleCell: function (aIndex, aColumn) {},
isEditable: function (aIndex, aColumn) { return false; },
setCellValue: function (aIndex, aColumn, aValue) {},
setCellText: function (aIndex, aColumn, aValue) {},
performAction: function (aAction) {},
performActionOnRow: function (aAction, aIndex) {},
performActionOnCell: function (aAction, aindex, aColumn) {}
},
removeFileHandler: function ()
{
var selection = this._tree.view.selection;
if (selection.count < 1)
return;
var promptService = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
.getService(Components.interfaces.nsIPromptService);
var flags = promptService.BUTTON_TITLE_IS_STRING * promptService.BUTTON_POS_0;
flags += promptService.BUTTON_TITLE_CANCEL * promptService.BUTTON_POS_1;
var title = this._bundle.getString("removeTitle" + (selection.count > 1 ? "Multiple" : "Single"));
var message = this._bundle.getString("removeMessage" + (selection.count > 1 ? "Multiple" : "Single"));
var button = this._bundle.getString("removeButton" + (selection.count > 1 ? "Multiple" : "Single"));
var rv = promptService.confirmEx(window, title, message, flags, button,
null, null, null, { value: 0 });
if (rv != 0)
return;
var rangeCount = selection.getRangeCount();
var lastSelected = 0;
var mimeDSDirty = false;
for (var i = 0; i < rangeCount; ++i) {
var min = { }; var max = { };
selection.getRangeAt(i, min, max);
for (var j = min.value; j <= max.value; ++j) {
var item = this._view.getItemAtIndex(j);
if (!item.handledOnlyByPlugin) {
// There is data for this type in the MIME registry, so make sure we
// remove it from the MIME registry. We don't disable the plugin here because
// if we do there's currently no way through the UI to re-enable it. We may
// come up with some sort of solution for that at a later date.
var typeRes = this._rdf.GetResource(MIME_URI(item.type));
var handlerRes = this._getChildResource(typeRes, "handlerProp");
var extAppRes = this._getChildResource(handlerRes, "externalApplication");
this._cleanResource(extAppRes);
this._cleanResource(handlerRes);
this._cleanResource(typeRes);
mimeDSDirty = true;
}
lastSelected = (j + 1) >= this._view.rowCount ? j-1 : j;
}
}
if (mimeDSDirty &&
this._mimeDS instanceof Components.interfaces.nsIRDFRemoteDataSource)
this._mimeDS.Flush();
// Just reload the list to make sure deletions are respected
this._loadView();
this._updateRowCount(this._updateExclusions());
selection.select(lastSelected);
},
_cleanResource: function (aResource)
{
var labels = this._mimeDS.ArcLabelsOut(aResource);
while (labels.hasMoreElements()) {
var arc = labels.getNext();
if (!(arc instanceof Components.interfaces.nsIRDFResource))
break;
var target = this._mimeDS.GetTarget(aResource, arc, true);
this._mimeDS.Unassert(aResource, arc, target);
}
},
_disablePluginForItem: function (aItem)
{
if (aItem.pluginAvailable) {
// Since we're disabling the full page plugin for this content type,
// we must add it to the disabled list if it's not in there already.
var prefs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
var disabled = aItem.type;
if (prefs.prefHasUserValue(kDisabledPluginTypesPref)) {
disabled = prefs.getCharPref(kDisabledPluginTypesPref);
if (disabled.indexOf(aItem.type) == -1)
disabled += "," + aItem.type;
}
prefs.setCharPref(kDisabledPluginTypesPref, disabled);
// Also, we update the category manager so that existing browser windows
// update.
var catman = Components.classes["@mozilla.org/categorymanager;1"]
.getService(Components.interfaces.nsICategoryManager);
catman.deleteCategoryEntry("Gecko-Content-Viewers", aItem.type, false);
}
},
_enablePluginForItem: function (aItem)
{
var prefs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
// Since we're enabling the full page plugin for this content type, we must
// look at the disabled types list and ensure that this type isn't in it.
if (prefs.prefHasUserValue(kDisabledPluginTypesPref)) {
var disabledList = prefs.getCharPref(kDisabledPluginTypesPref);
if (disabledList == aItem.type)
prefs.clearUserPref(kDisabledPluginTypesPref);
else {
var disabledTypes = disabledList.split(",");
var disabled = "";
for (var i = 0; i < disabledTypes.length; ++i) {
if (aItem.type != disabledTypes[i])
disabled += disabledTypes[i] + (i == disabledTypes.length - 1 ? "" : ",");
}
prefs.setCharPref(kDisabledPluginTypesPref, disabled);
}
}
// Also, we update the category manager so that existing browser windows
// update.
var catman = Components.classes["@mozilla.org/categorymanager;1"]
.getService(Components.interfaces.nsICategoryManager);
catman.addCategoryEntry("Gecko-Content-Viewers", aItem.type,
kPluginHandlerContractID, false, true);
},
_ensureMIMERegistryEntry: function (aItem)
{
var root = this._rdf.GetResource("urn:mimetypes:root");
var container = Components.classes["@mozilla.org/rdf/container;1"]
.createInstance(Components.interfaces.nsIRDFContainer);
container.Init(this._mimeDS, root);
var itemResource = this._rdf.GetResource(MIME_URI(aItem.type));
var handlerResource = null;
if (container.IndexOf(itemResource) == -1) {
container.AppendElement(itemResource);
this._setLiteralValue(itemResource, "editable", "true");
this._setLiteralValue(itemResource, "value", aItem.type);
handlerResource = this._rdf.GetResource(HANDLER_URI(aItem.type));
this._setLiteralValue(handlerResource, "alwaysAsk", "false");
var handlerProp = this._rdf.GetResource(NC_URI("handlerProp"));
this._mimeDS.Assert(itemResource, handlerProp, handlerResource, true);
var extAppResource = this._rdf.GetResource(APP_URI(aItem.type));
this._setLiteralValue(extAppResource, "path", "");
var extAppProp = this._rdf.GetResource(NC_URI("externalApplication"));
this._mimeDS.Assert(handlerResource, extAppProp, extAppResource, true);
}
else
handlerResource = this._getChildResource(itemResource, "handlerProp");
return handlerResource;
},
_setLiteralValue: function (aResource, aProperty, aValue)
{
var property = this._rdf.GetResource(NC_URI(aProperty));
var newValue = this._rdf.GetLiteral(aValue);
var oldValue = this._mimeDS.GetTarget(aResource, property, true);
if (oldValue)
this._mimeDS.Change(aResource, property, oldValue, newValue);
else
this._mimeDS.Assert(aResource, property, newValue, true);
},
editFileHandler: function ()
{
var selection = this._tree.view.selection;
if (selection.count != 1)
return;
var item = this._view.getItemAtIndex(selection.currentIndex);
openDialog("chrome://browser/content/preferences/changeaction.xul",
"_blank", "modal,centerscreen", item);
// Update the database
switch (item.handleMode) {
case FILEACTION_OPEN_PLUGIN:
this._enablePluginForItem(item);
// We don't need to adjust the database because plugin settings always
// supercede whatever is in the db, leaving it untouched allows the last
// user setting(s) to be preserved if they ever revert.
break;
case FILEACTION_OPEN_DEFAULT:
this._disablePluginForItem(item);
var handlerRes = this._ensureMIMERegistryEntry(item);
this._setLiteralValue(handlerRes, "useSystemDefault", "true");
this._setLiteralValue(handlerRes, "saveToDisk", "false");
break;
case FILEACTION_OPEN_CUSTOM:
this._disablePluginForItem(item);
var handlerRes = this._ensureMIMERegistryEntry(item);
this._setLiteralValue(handlerRes, "useSystemDefault", "false");
this._setLiteralValue(handlerRes, "saveToDisk", "false");
var extAppRes = this._getChildResource(handlerRes, "externalApplication");
this._setLiteralValue(extAppRes, "path", item.customHandler.path);
break;
case FILEACTION_SAVE_TO_DISK:
this._disablePluginForItem(item);
var handlerRes = this._ensureMIMERegistryEntry(item);
this._setLiteralValue(handlerRes, "useSystemDefault", "false");
this._setLiteralValue(handlerRes, "saveToDisk", "true");
break;
}
if (this._mimeDS instanceof Components.interfaces.nsIRDFRemoteDataSource)
this._mimeDS.Flush();
// Update the view
this._tree.treeBoxObject.invalidateRow(selection.currentIndex);
},
onSelectionChanged: function ()
{
if (this._tree.view.rowCount == 0) {
this._removeButton.disabled = true;
this._editButton.disabled = true;
return;
}
var selection = this._tree.view.selection;
var selected = selection.count;
this._removeButton.disabled = selected == 0;
this._editButton.disabled = selected != 1;
var stringKey = selected > 1 ? "removeButtonMultiple" : "removeButtonSingle";
this._removeButton.label = this._bundle.getString(stringKey);
var canRemove = true;
var canEdit = true;
var rangeCount = selection.getRangeCount();
var min = { }, max = { };
var setLastSelected = false;
for (var i = 0; i < rangeCount; ++i) {
selection.getRangeAt(i, min, max);
for (var j = min.value; j <= max.value; ++j) {
if (!setLastSelected) {
// Set the last selected index to the first item in the selection
this._tree.setAttribute("lastSelected", j);
setLastSelected = true;
}
var item = this._view.getItemAtIndex(j);
if (item &&
(!item.editable || item.handleMode == FILEACTION_OPEN_INTERNALLY))
canEdit = false;
if (item &&
(!item.editable || item.handleMode == FILEACTION_OPEN_INTERNALLY ||
item.handledOnlyByPlugin))
canRemove = false;
}
}
if (!canRemove)
this._removeButton.disabled = true;
if (!canEdit)
this._editButton.disabled = true;
},
_lastSortProperty : "",
_lastSortAscending: false,
sort: function (aProperty)
{
var ascending = (aProperty == this._lastSortProperty) ? !this._lastSortAscending : true;
function sortByProperty(a, b)
{
return a[aProperty].toLowerCase().localeCompare(b[aProperty].toLowerCase());
}
function sortByExtension(a, b)
{
if (!a.hasExtension && b.hasExtension)
return 1;
if (!b.hasExtension && a.hasExtension)
return -1;
return a.extension.toLowerCase().localeCompare(b.extension.toLowerCase());
}
// Sort the Filtered List, if in Filtered mode
if (!this._view._filtered) {
this._view.activeCollection.sort(aProperty == "extension" ? sortByExtension : sortByProperty);
if (!ascending)
this._view.activeCollection.reverse();
}
this._view.selection.clearSelection();
this._view.selection.select(0);
this._tree.treeBoxObject.invalidate();
this._tree.treeBoxObject.ensureRowIsVisible(0);
this._lastSortAscending = ascending;
this._lastSortProperty = aProperty;
},
clearFilter: function ()
{
// Clear the Filter and the Tree Display
document.getElementById("filter").value = "";
this._view._filtered = false;
this._view._filterSet = [];
// Just reload the list to make sure deletions are respected
this._loadView();
this._updateRowCount(this._updateExclusions());
// Restore selection
this._view.selection.clearSelection();
for (var i = 0; i < this._lastSelectedRanges.length; ++i) {
var range = this._lastSelectedRanges[i];
this._view.selection.rangedSelect(range.min, range.max, true);
}
this._lastSelectedRanges = [];
document.getElementById("actionsIntro").value = this._bundle.getString("actionsAll");
document.getElementById("clearFilter").disabled = true;
document.getElementById("filter").focus();
},
_actionMatchesFilter: function (aAction)
{
return aAction.extension.toLowerCase().indexOf(this._view._filterValue) != -1 ||
aAction.typeName.toLowerCase().indexOf(this._view._filterValue) != -1 ||
aAction.type.toLowerCase().indexOf(this._view._filterValue) != -1 ||
aAction.action.toLowerCase().indexOf(this._view._filterValue) != -1;
},
_filterActions: function (aFilterValue)
{
this._view._filterValue = aFilterValue;
var actions = [];
var collection = this._view._usingExclusionSet ? this._view._exclusionSet : this._actions;
for (var i = 0; i < collection.length; ++i) {
var action = collection[i];
if (this._actionMatchesFilter(action))
actions.push(action);
}
return actions;
},
_lastSelectedRanges: [],
_saveState: function ()
{
// Save selection
var seln = this._view.selection;
this._lastSelectedRanges = [];
var rangeCount = seln.getRangeCount();
for (var i = 0; i < rangeCount; ++i) {
var min = {}; var max = {};
seln.getRangeAt(i, min, max);
this._lastSelectedRanges.push({ min: min.value, max: max.value });
}
},
_filterTimeout: -1,
onFilterInput: function ()
{
if (this._filterTimeout != -1)
clearTimeout(this._filterTimeout);
function filterActions()
{
var filter = document.getElementById("filter").value;
if (filter == "") {
gDownloadActionsWindow.clearFilter();
return;
}
var view = gDownloadActionsWindow._view;
view._filterSet = gDownloadActionsWindow._filterActions(filter);
if (!view._filtered) {
// Save Display Info for the Non-Filtered mode when we first
// enter Filtered mode.
gDownloadActionsWindow._saveState();
view._filtered = true;
}
// Clear the display
gDownloadActionsWindow._updateRowCount(view._filterSet.length);
// if the view is not empty then select the first item
if (view.rowCount > 0)
view.selection.select(0);
document.getElementById("actionsIntro").value = gDownloadActionsWindow._bundle.getString("actionsFiltered");
document.getElementById("clearFilter").disabled = false;
}
window.filterActions = filterActions;
this._filterTimeout = setTimeout("filterActions();", 500);
},
onFilterKeyPress: function (aEvent)
{
if (aEvent.keyCode == 27) // ESC key
this.clearFilter();
},
focusFilterBox: function ()
{
var filter = document.getElementById("filter");
filter.focus();
filter.select();
}
};
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