gecko/toolkit/mozapps/handling/content/dialog.js
2012-05-21 12:12:37 +01:00

266 lines
9.2 KiB
JavaScript

/* 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 dialog builds its content based on arguments passed into it.
* window.arguments[0]:
* The title of the dialog.
* window.arguments[1]:
* The url of the image that appears to the left of the description text
* window.arguments[2]:
* The text of the description that will appear above the choices the user
* can choose from.
* window.arguments[3]:
* The text of the label directly above the choices the user can choose from.
* window.arguments[4]:
* This is the text to be placed in the label for the checkbox. If no text is
* passed (ie, it's an empty string), the checkbox will be hidden.
* window.arguments[5]:
* The accesskey for the checkbox
* window.arguments[6]:
* This is the text that is displayed below the checkbox when it is checked.
* window.arguments[7]:
* This is the nsIHandlerInfo that gives us all our precious information.
* window.arguments[8]:
* This is the nsIURI that we are being brought up for in the first place.
* window.arguments[9]:
* The nsIInterfaceRequestor of the parent window; may be null
*/
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
var dialog = {
//////////////////////////////////////////////////////////////////////////////
//// Member Variables
_handlerInfo: null,
_URI: null,
_itemChoose: null,
_okButton: null,
_windowCtxt: null,
//////////////////////////////////////////////////////////////////////////////
//// Methods
/**
* This function initializes the content of the dialog.
*/
initialize: function initialize()
{
this._handlerInfo = window.arguments[7].QueryInterface(Ci.nsIHandlerInfo);
this._URI = window.arguments[8].QueryInterface(Ci.nsIURI);
this._windowCtxt = window.arguments[9];
if (this._windowCtxt)
this._windowCtxt.QueryInterface(Ci.nsIInterfaceRequestor);
this._itemChoose = document.getElementById("item-choose");
this._okButton = document.documentElement.getButton("accept");
this.updateOKButton();
var description = {
image: document.getElementById("description-image"),
text: document.getElementById("description-text")
};
var options = document.getElementById("item-action-text");
var checkbox = {
desc: document.getElementById("remember"),
text: document.getElementById("remember-text")
};
// Setting values
document.title = window.arguments[0];
description.image.src = window.arguments[1];
description.text.textContent = window.arguments[2];
options.value = window.arguments[3];
checkbox.desc.label = window.arguments[4];
checkbox.desc.accessKey = window.arguments[5];
checkbox.text.textContent = window.arguments[6];
// Hide stuff that needs to be hidden
if (!checkbox.desc.label)
checkbox.desc.hidden = true;
// UI is ready, lets populate our list
this.populateList();
},
/**
* Populates the list that a user can choose from.
*/
populateList: function populateList()
{
var items = document.getElementById("items");
var possibleHandlers = this._handlerInfo.possibleApplicationHandlers;
var preferredHandler = this._handlerInfo.preferredApplicationHandler;
var ios = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
for (let i = possibleHandlers.length - 1; i >= 0; --i) {
let app = possibleHandlers.queryElementAt(i, Ci.nsIHandlerApp);
let elm = document.createElement("richlistitem");
elm.setAttribute("type", "handler");
elm.setAttribute("name", app.name);
elm.obj = app;
if (app instanceof Ci.nsILocalHandlerApp) {
// See if we have an nsILocalHandlerApp and set the icon
let uri = ios.newFileURI(app.executable);
elm.setAttribute("image", "moz-icon://" + uri.spec + "?size=32");
}
else if (app instanceof Ci.nsIWebHandlerApp) {
let uri = ios.newURI(app.uriTemplate, null, null);
if (/^https?/.test(uri.scheme)) {
// Unfortunately we can't use the favicon service to get the favicon,
// because the service looks for a record with the exact URL we give
// it, and users won't have such records for URLs they don't visit,
// and users won't visit the handler's URL template, they'll only
// visit URLs derived from that template (i.e. with %s in the template
// replaced by the URL of the content being handled).
elm.setAttribute("image", uri.prePath + "/favicon.ico");
}
elm.setAttribute("description", uri.prePath);
}
else if (app instanceof Ci.nsIDBusHandlerApp){
elm.setAttribute("description", app.method);
}
else
throw "unknown handler type";
items.insertBefore(elm, this._itemChoose);
if (preferredHandler && app == preferredHandler)
this.selectedItem = elm;
}
if (this._handlerInfo.hasDefaultHandler) {
let elm = document.createElement("richlistitem");
elm.setAttribute("type", "handler");
elm.id = "os-default-handler";
elm.setAttribute("name", this._handlerInfo.defaultDescription);
items.insertBefore(elm, items.firstChild);
if (this._handlerInfo.preferredAction ==
Ci.nsIHandlerInfo.useSystemDefault)
this.selectedItem = elm;
}
items.ensureSelectedElementIsVisible();
},
/**
* Brings up a filepicker and allows a user to choose an application.
*/
chooseApplication: function chooseApplication()
{
var bundle = document.getElementById("base-strings");
var title = bundle.getString("choose.application.title");
var fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
fp.init(window, title, Ci.nsIFilePicker.modeOpen);
fp.appendFilters(Ci.nsIFilePicker.filterApps);
if (fp.show() == Ci.nsIFilePicker.returnOK && fp.file) {
let uri = Cc["@mozilla.org/network/util;1"].
getService(Ci.nsIIOService).
newFileURI(fp.file);
let handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
createInstance(Ci.nsILocalHandlerApp);
handlerApp.executable = fp.file;
// if this application is already in the list, select it and don't add it again
let parent = document.getElementById("items");
for (let i = 0; i < parent.childNodes.length; ++i) {
let elm = parent.childNodes[i];
if (elm.obj instanceof Ci.nsILocalHandlerApp && elm.obj.equals(handlerApp)) {
parent.selectedItem = elm;
parent.ensureSelectedElementIsVisible();
return;
}
}
let elm = document.createElement("richlistitem");
elm.setAttribute("type", "handler");
elm.setAttribute("name", fp.file.leafName);
elm.setAttribute("image", "moz-icon://" + uri.spec + "?size=32");
elm.obj = handlerApp;
parent.selectedItem = parent.insertBefore(elm, parent.firstChild);
parent.ensureSelectedElementIsVisible();
}
},
/**
* Function called when the OK button is pressed.
*/
onAccept: function onAccept()
{
var checkbox = document.getElementById("remember");
if (!checkbox.hidden) {
// We need to make sure that the default is properly set now
if (this.selectedItem.obj) {
// default OS handler doesn't have this property
this._handlerInfo.preferredAction = Ci.nsIHandlerInfo.useHelperApp;
this._handlerInfo.preferredApplicationHandler = this.selectedItem.obj;
}
else
this._handlerInfo.preferredAction = Ci.nsIHandlerInfo.useSystemDefault;
}
this._handlerInfo.alwaysAskBeforeHandling = !checkbox.checked;
var hs = Cc["@mozilla.org/uriloader/handler-service;1"].
getService(Ci.nsIHandlerService);
hs.store(this._handlerInfo);
this._handlerInfo.launchWithURI(this._URI, this._windowCtxt);
return true;
},
/**
* Determines if the OK button should be disabled or not
*/
updateOKButton: function updateOKButton()
{
this._okButton.disabled = this._itemChoose.selected;
},
/**
* Updates the UI based on the checkbox being checked or not.
*/
onCheck: function onCheck()
{
if (document.getElementById("remember").checked)
document.getElementById("remember-text").setAttribute("visible", "true");
else
document.getElementById("remember-text").removeAttribute("visible");
},
/**
* Function called when the user double clicks on an item of the list
*/
onDblClick: function onDblClick()
{
if (this.selectedItem == this._itemChoose)
this.chooseApplication();
else
document.documentElement.acceptDialog();
},
/////////////////////////////////////////////////////////////////////////////
//// Getters / Setters
/**
* Returns/sets the selected element in the richlistbox
*/
get selectedItem()
{
return document.getElementById("items").selectedItem;
},
set selectedItem(aItem)
{
return document.getElementById("items").selectedItem = aItem;
}
};