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navigation.js
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navigation.js
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function updateTimeline( json_data, insert_more, data_type ) {
var content = $("#timeline_subview");
content.xhr("data/timeline.html", {
successCallback: function() {
var str_template = $.responseText;
var str_timeline = '';
/*
if (data_type == CONST_USER) {
str_timeline = str_timeline + '<tablecell style="height: 45px;" class="ui-no-hover">User buttons</tablecell>';
}
*/
// Iterate through the JSON data, creating the string in memory.
var str_lastprofileimageurl = ''; // Saves the last profile image URL for when the search API fails to send a new one in the user object.
for ( var i = 0; i < json_data.length; i++ ) {
var str_id = json_data[i].id_str;
if ( str_id != last_tweet_id ) {
var str_instance = str_template;
var str_text = json_data[i].text;
var str_raw_text = str_text;
var str_date = json_data[i].created_at;
var str_profileimageurl = '';
var str_screenname = '';
var str_raw_screenname = '';
// If the data is from the Twitter search API, get the profile image URL and screen name from the main object.
// Else retrieve it from the REST API's embedded user structure.
switch( data_type ) {
case CONST_SEARCH:
str_profileimageurl = json_data[i].profile_image_url;
str_screenname = json_data[i].from_user;
str_raw_screenname = str_screenname;
break;
case CONST_DIRECTMESSAGES:
str_profileimageurl = json_data[i].sender.profile_image_url;
str_screenname = json_data[i].sender.screen_name;
str_raw_screenname = str_screenname;
break;
default:
str_profileimageurl = json_data[i].user.profile_image_url;
str_screenname = json_data[i].user.screen_name;
str_raw_screenname = str_screenname;
// If this is a retweet, use the original tweet, plus the original tweeter's profile image and screen name.
if ( json_data[i].retweeted_status != null ) {
str_text = json_data[i].retweeted_status.text;
str_raw_text = str_text;
str_profileimageurl = json_data[i].retweeted_status.user.profile_image_url;
str_screenname = json_data[i].retweeted_status.user.screen_name + ', retweeted by ' + json_data[i].user.screen_name;
str_raw_screenname = json_data[i].retweeted_status.user.screen_name;
}
}
// Update last_tweet_id with this tweet's ID.
last_tweet_id = str_id;
// Change URLs into links and make hashtags and usernames clickable.
str_text = str_text.replace_smart_quotes();
str_text = str_text.linkify_tweet();
str_text = str_text.replace_url_with_html_links();
// Use the bigger size profile images.
if ( str_profileimageurl == null ) {
str_profileimageurl = str_lastprofileimageurl;
}
var re = new RegExp("_normal\.(.{3})$", "gi");
str_profileimageurl = str_profileimageurl.replace(re, '_bigger.$1');
str_lastprofileimageurl = str_profileimageurl;
// Display the timestamp in relative time.
str_date = new Date(json_data[i].created_at).toRelativeTime();
str_instance = str_instance.replace(/\$\{id\}/g, str_id);
str_instance = str_instance.replace('${profile_image_url}', str_profileimageurl);
str_instance = str_instance.replace(/\$\{screen_name\}/g, str_screenname);
str_instance = str_instance.replace('${text}', str_text);
str_instance = str_instance.replace('${raw_text}', str_raw_text);
str_instance = str_instance.replace('${raw_screenname}', str_raw_screenname);
str_instance = str_instance.replace('${created_at}', str_date);
str_timeline = str_timeline + str_instance;
}
}
$.responseText = null;
str_template = null;
if ( insert_more == false ) {
content.fill($.make('<div><tableview id="timeline" ui-tablecell-order="stacked">' + str_timeline + '</tableview></div>'));
$('#timeline_subview').scrollTop = 0;
}
else {
content.insert($.make(str_timeline));
}
}
});
}
// Launch the BlackBerry PlayBook browser for a URL (or the native browser if we're not on a PlayBook).
function followLink( address ) {
var encodedAddress = '';
// URL Encode all instances of ':' in the address
encodedAddress = address.replace(/:/g, "%3A");
// Leave the first instance of ':' in its normal form
encodedAddress = encodedAddress.replace(/%3A/, ":");
// Escape all instances of '&' in the address
encodedAddress = encodedAddress.replace(/&/g, "\&");
if (typeof blackberry !== 'undefined') {
try {
// If I am a BlackBerry device, invoke native browser.
var args = new blackberry.invoke.BrowserArguments(encodedAddress);
blackberry.invoke.invoke(blackberry.invoke.APP_BROWSER, args);
} catch(e) {
alert("Sorry, there was a problem invoking the browser.");
}
} else {
// If I am not a BlackBerry device, open link in current browser.
window.open(encodedAddress);
}
}
// Navigate to a different view in the application.
function gotoPage( view_name, reset_history ) {
executeView(view_name);
$(view_name).setAttribute("ui-navigation-status", "current");
$($.UINavigationHistory[$.UINavigationHistory.length-1]).setAttribute("ui-navigation-status", "traversed");
if ( reset_history != null ) {
$.UINavigationHistory = new Array();
}
$.UINavigationHistory.push(view_name);
}
// Navigate back from a view in the application.
function goBack() {
var page_current = $.UINavigationHistory[$.UINavigationHistory.length-1];
$.UINavigationHistory.pop();
executeView($.UINavigationHistory[$.UINavigationHistory.length-1]);
$($.UINavigationHistory[$.UINavigationHistory.length-1]).setAttribute("ui-navigation-status", "current");
$(page_current).setAttribute("ui-navigation-status", "upcoming");
updateViewName(current_view, CONST_BACKBUTTON);
}
// Post a new status message to the user's own timeline.
function postTweet() {
var url = 'https://api.twitter.com/1/statuses/update.json';
var status = $('#tweet_textarea').value;
var in_reply_to_status_id = $('#in_reply_to_status_id').innerHTML;
// If the status is empty or more than 140 characters, just exit without posting to the Twitter API.
if ( status.length < 1 || status.length > 140 ) {
return;
}
// If the tweet is in reply to an existing tweet, send in_reply_to_status_id along. Else omit that parameter.
var tweet_options = { 'status': status, 'trim_user': 'true', 'include_entities': 'false' };
if ( in_reply_to_status_id.length > 0 ) {
tweet_options = { 'status': status, 'in_reply_to_status_id': in_reply_to_status_id, 'trim_user': 'true', 'include_entities': 'false' };
}
oauth.post(url,
tweet_options,
function(data) {
//var json_data = JSON.parse(data.text);
$("#tweet_result").fill($.make('<span style="color: #009933;">Success!</span>'));
$('#tweet_textarea').value = '';
},
function(data) {
$("#tweet_result").fill($.make('<span style="color: #009933;">Success!</span>'));
$('#tweet_textarea').value = '';
//$("#tweet_result").fill($.make('<span style="color: #FF0000;">Error, please retry.</span>'));
}
);
}
// Retweet a tweet.
function postRetweet() {
var url = 'http://api.twitter.com/1/statuses/retweet/' + reply_id + '.json';
oauth.post(url,
{ 'id': reply_id, 'trim_user': '1', 'include_entities': '0' },
function(data) {
var json_data = JSON.parse(data.text);
$("#misc_header").fill('Retweeted Succesfully');
$("#misc_text").fill($.make('The message below was sucessfully retweeted:<br /><br/ >@' + str_tweet));
gotoPage('#misc_view');
},
function(data) {
$("#misc_header").fill('Error');
$("#misc_text").fill($.make('Could not complete the action. Please retry later.'));
gotoPage('#misc_view');
}
);
}
// Favourite a tweet.
function postFavourite() {
var url = 'http://api.twitter.com/1/favorites/create/' + reply_id + '.json';
oauth.post(url,
{ 'id': reply_id, 'skip_status': '1', 'include_entities': '0' },
function(data) {
var json_data = JSON.parse(data.text);
$("#misc_header").fill('Favourited Succesfully');
$("#misc_text").fill($.make('The message below was sucessfully favourited:<br /><br/ >@' + str_tweet));
gotoPage('#misc_view');
},
function(data) {
$("#misc_header").fill('Error');
$("#misc_text").fill($.make('Could not complete the action. Please retry later.'));
gotoPage('#misc_view');
}
);
}
// Navigate to a list of direct messages.
function viewDirectMessages( go_back ) {
var url = 'https://api.twitter.com/1/direct_messages.json?include_entities=0&count=' + status_count;
if ( go_back == 1 ) {
goBack();
untouchButtons();
}
updateViewName('Retrieving direct messages...', CONST_LOADING);
oauth.get(url,
function(data) {
var json_data = JSON.parse(data.text);
updateTimeline(json_data, false, CONST_DIRECTMESSAGES);
current_view = 'Direct Messages';
updateViewName(current_view, CONST_DIRECTMESSAGES);
}
);
}
// Navigate to a list of mentions.
function viewMentions( go_back ) {
var url = 'http://api.twitter.com/1/statuses/mentions.json?include_rts=1&count=' + status_count;
if ( go_back == 1 ) {
goBack();
untouchButtons();
}
updateViewName('Retrieving mentions...', CONST_LOADING);
oauth.get(url,
function(data) {
var json_data = JSON.parse(data.text);
updateTimeline(json_data, false, CONST_MENTIONS);
current_view = 'Mentions';
updateViewName(current_view, CONST_MENTIONS);
}
);
}
// Navigate to a list of a user's tweets.
function viewUser( screen_name ) {
var url = 'http://api.twitter.com/1/statuses/user_timeline.json?include_rts=1&screen_name=' + screen_name + '&count=' + status_count;
updateViewName('Retrieving tweets...', CONST_LOADING);
oauth.get(url,
function(data) {
var json_data = JSON.parse(data.text);
updateTimeline(json_data, false, CONST_USER);
current_view = screen_name;
updateViewName(screen_name, CONST_USER);
untouchButtons();
}
);
}
function searchUser() {
viewUser($('#user_textarea').value);
$('#user_textarea').value = '';
gotoPage('#main');
}
function doSearch() {
viewHashTag($('#search_textarea').value);
$('#search_textarea').value = '';
gotoPage('#main');
}
// Run a search for a hash tag.
function viewHashTag( hash_tag ) {
ht_search = new Search(hash_tag);
updateViewName('Retrieving tweets...', CONST_LOADING);
ht_search.execute();
}
// Navigate to the view of all of the user's lists.
function goLists( user_id, screen_name ) {
if ( lists == null ) {
lists = new List(user_id, screen_name);
}
if ( lists.retrieved_lists == 0 ) {
updateViewName('Getting your lists...', CONST_LOADING);
}
lists.retrieve_all();
untouchButtons();
}
function viewListPrev( user_id, screen_name ) {
updateViewName('Retrieving tweets...', CONST_LOADING);
if ( lists == null ) {
lists = new List(user_id, screen_name);
}
lists.change_list('prev');
untouchButtons();
}
function viewListNext( user_id, screen_name ) {
updateViewName('Retrieving tweets...', CONST_LOADING);
if ( lists == null ) {
lists = new List(user_id, screen_name);
}
lists.change_list('next');
untouchButtons();
}
function viewList( id_str, name, go_back ) {
if ( go_back == 1 ) {
goBack();
untouchButtons();
}
updateViewName('Retrieving tweets...', CONST_LOADING);
lists.view_list(id_str, name);
}
function updateViewName( name, view_type, id_str ) {
var str_action = '';
// If the back button is hit, load the last view type.
if ( view_type == CONST_BACKBUTTON ) {
view_type = last_view_type;
}
// Update the refresh button with a new title and action.
// Also update the last view action (in case automatic refresh is turned on).
switch( view_type ) {
case CONST_DIRECTMESSAGES:
last_view_action = 'viewDirectMessages(0);';
name = '<span onclick="' + last_view_action + '"><img src="images/refresh.png" style="vertical-align: text-bottom;" /> Direct Messages</span>';
color = '#fff';
break;
case CONST_MENTIONS:
last_view_action = 'viewMentions(0);';
name = '<span onclick="' + last_view_action + '"><img src="images/refresh.png" style="vertical-align: text-bottom;" /> Mentions</span>';
color = '#fff';
break;
case CONST_SEARCH:
last_view_action = 'viewHashTag(\'' + name + '\');';
name = '<span onclick="' + last_view_action + '"><img src="images/refresh.png" style="vertical-align: text-bottom;" /> ' + name + '</span>';
color = '#fff';
break;
case CONST_LIST:
last_view_action = 'viewList(\'' + id_str + '\', \'' + name + '\', 0);';
name = '<span onclick="' + last_view_action + '"><img src="images/refresh.png" style="vertical-align: text-bottom;" /> ' + name + '</span>';
color = '#fff';
break;
case CONST_USER:
last_view_action = 'viewUser(\'' + name + '\');';
name = '<span onclick="' + last_view_action + '"><img src="images/refresh.png" style="vertical-align: text-bottom;" /> @' + name + '</span>';
color = '#fff';
break;
case CONST_LOADING:
name = '<img src="images/ajax-loader.gif" style="vertical-align: text-bottom;" /> ' + name;
color = '#95B9C7';
break;
default:
last_view_action = 'doRefresh();';
name = '<span onclick="' + last_view_action + '"><img src="images/refresh.png" style="vertical-align: text-bottom;" /> All</span>';
color = '#fff';
}
// Update the last view type (in case the Back button is hit).
if ( view_type != CONST_LOADING ) {
last_view_type = view_type;
}
$('#btn_current_view').style.color = color;
$('#btn_current_view').fill($.make(name));
untouchButtons();
}
function untouchButtons() {
if ( $.UITouchedButton != null ) {
$.UITouchedButton.removeClass("touched");
}
}
function viewAbout() {
$("#misc_header").fill('About Lemma');
var content = $("#misc_text").empty();
content.xhr("data/about_lemma.html");
gotoPage('#misc_view');
}
function doAutoRefresh() {
eval(last_view_action);
timer_autorefresh = setTimeout('doAutoRefresh();', status_autorefresh);
}
function doAutoAuthCheck() {
var str_currlocation = browser.getLocation();
if ( str_currlocation.indexOf(options['callbackUrl'], 0) >= 0 ) {
var oauth_verifier = getQueryVariable(str_currlocation, 'oauth_verifier');
// Close the in-app browser.
browser.close();
doAuthStepTwo(oauth_verifier);
}
else {
timer_autorefresh = setTimeout('doAutoAuthCheck();', 5000);
}
}
function getQueryVariable(url, variable) {
var query = url.substring((url.indexOf('?') + 1), url.length);
var vars = query.split('&');
for ( var i = 0; i < vars.length; i++ ) {
var pair = vars[i].split('=');
if (pair[0] == variable) {
return pair[1];
}
}
}